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authorFelix Hanley <felix@userspace.com.au>2025-01-20 04:25:05 +0000
committerFelix Hanley <felix@userspace.com.au>2025-01-20 04:25:05 +0000
commitf82adc0030a993ff25cbf70cf81d75900f455e6a (patch)
tree74bd8e701161262fb34d415aebfef064dbb842d6 /vendor/github.com/google
parent260b74748ab6e0a10d73cd97061996bd4cc70481 (diff)
downloadcaddy-f82adc0030a993ff25cbf70cf81d75900f455e6a.tar.gz
caddy-f82adc0030a993ff25cbf70cf81d75900f455e6a.tar.bz2
Upgrade caddy to 2.9.1
Diffstat (limited to 'vendor/github.com/google')
-rw-r--r--vendor/github.com/google/cel-go/cel/BUILD.bazel22
-rw-r--r--vendor/github.com/google/cel-go/cel/decls.go1106
-rw-r--r--vendor/github.com/google/cel-go/cel/env.go483
-rw-r--r--vendor/github.com/google/cel-go/cel/folding.go559
-rw-r--r--vendor/github.com/google/cel-go/cel/inlining.go228
-rw-r--r--vendor/github.com/google/cel-go/cel/io.go192
-rw-r--r--vendor/github.com/google/cel-go/cel/library.go302
-rw-r--r--vendor/github.com/google/cel-go/cel/macro.go465
-rw-r--r--vendor/github.com/google/cel-go/cel/optimizer.go535
-rw-r--r--vendor/github.com/google/cel-go/cel/options.go199
-rw-r--r--vendor/github.com/google/cel-go/cel/program.go116
-rw-r--r--vendor/github.com/google/cel-go/cel/validator.go375
-rw-r--r--vendor/github.com/google/cel-go/checker/BUILD.bazel10
-rw-r--r--vendor/github.com/google/cel-go/checker/checker.go663
-rw-r--r--vendor/github.com/google/cel-go/checker/cost.go335
-rw-r--r--vendor/github.com/google/cel-go/checker/decls/BUILD.bazel3
-rw-r--r--vendor/github.com/google/cel-go/checker/decls/decls.go2
-rw-r--r--vendor/github.com/google/cel-go/checker/env.go247
-rw-r--r--vendor/github.com/google/cel-go/checker/errors.go94
-rw-r--r--vendor/github.com/google/cel-go/checker/format.go216
-rw-r--r--vendor/github.com/google/cel-go/checker/mapping.go14
-rw-r--r--vendor/github.com/google/cel-go/checker/options.go13
-rw-r--r--vendor/github.com/google/cel-go/checker/printer.go35
-rw-r--r--vendor/github.com/google/cel-go/checker/scopes.go (renamed from vendor/github.com/google/cel-go/checker/decls/scopes.go)38
-rw-r--r--vendor/github.com/google/cel-go/checker/standard.go494
-rw-r--r--vendor/github.com/google/cel-go/checker/types.go407
-rw-r--r--vendor/github.com/google/cel-go/common/BUILD.bazel3
-rw-r--r--vendor/github.com/google/cel-go/common/ast/BUILD.bazel57
-rw-r--r--vendor/github.com/google/cel-go/common/ast/ast.go457
-rw-r--r--vendor/github.com/google/cel-go/common/ast/conversion.go659
-rw-r--r--vendor/github.com/google/cel-go/common/ast/expr.go884
-rw-r--r--vendor/github.com/google/cel-go/common/ast/factory.go313
-rw-r--r--vendor/github.com/google/cel-go/common/ast/navigable.go660
-rw-r--r--vendor/github.com/google/cel-go/common/containers/BUILD.bazel4
-rw-r--r--vendor/github.com/google/cel-go/common/containers/container.go34
-rw-r--r--vendor/github.com/google/cel-go/common/debug/BUILD.bazel4
-rw-r--r--vendor/github.com/google/cel-go/common/debug/debug.go161
-rw-r--r--vendor/github.com/google/cel-go/common/decls/BUILD.bazel39
-rw-r--r--vendor/github.com/google/cel-go/common/decls/decls.go856
-rw-r--r--vendor/github.com/google/cel-go/common/error.go21
-rw-r--r--vendor/github.com/google/cel-go/common/errors.go24
-rw-r--r--vendor/github.com/google/cel-go/common/functions/BUILD.bazel17
-rw-r--r--vendor/github.com/google/cel-go/common/functions/functions.go61
-rw-r--r--vendor/github.com/google/cel-go/common/runes/buffer.go60
-rw-r--r--vendor/github.com/google/cel-go/common/source.go21
-rw-r--r--vendor/github.com/google/cel-go/common/stdlib/BUILD.bazel23
-rw-r--r--vendor/github.com/google/cel-go/common/stdlib/standard.go620
-rw-r--r--vendor/github.com/google/cel-go/common/types/BUILD.bazel13
-rw-r--r--vendor/github.com/google/cel-go/common/types/bool.go6
-rw-r--r--vendor/github.com/google/cel-go/common/types/bytes.go19
-rw-r--r--vendor/github.com/google/cel-go/common/types/double.go10
-rw-r--r--vendor/github.com/google/cel-go/common/types/duration.go68
-rw-r--r--vendor/github.com/google/cel-go/common/types/err.go32
-rw-r--r--vendor/github.com/google/cel-go/common/types/int.go23
-rw-r--r--vendor/github.com/google/cel-go/common/types/iterator.go2
-rw-r--r--vendor/github.com/google/cel-go/common/types/list.go143
-rw-r--r--vendor/github.com/google/cel-go/common/types/map.go233
-rw-r--r--vendor/github.com/google/cel-go/common/types/null.go12
-rw-r--r--vendor/github.com/google/cel-go/common/types/object.go18
-rw-r--r--vendor/github.com/google/cel-go/common/types/optional.go2
-rw-r--r--vendor/github.com/google/cel-go/common/types/overflow.go40
-rw-r--r--vendor/github.com/google/cel-go/common/types/pb/BUILD.bazel2
-rw-r--r--vendor/github.com/google/cel-go/common/types/pb/type.go50
-rw-r--r--vendor/github.com/google/cel-go/common/types/provider.go299
-rw-r--r--vendor/github.com/google/cel-go/common/types/ref/BUILD.bazel2
-rw-r--r--vendor/github.com/google/cel-go/common/types/ref/provider.go37
-rw-r--r--vendor/github.com/google/cel-go/common/types/string.go51
-rw-r--r--vendor/github.com/google/cel-go/common/types/timestamp.go10
-rw-r--r--vendor/github.com/google/cel-go/common/types/traits/iterator.go13
-rw-r--r--vendor/github.com/google/cel-go/common/types/traits/lister.go3
-rw-r--r--vendor/github.com/google/cel-go/common/types/traits/mapper.go15
-rw-r--r--vendor/github.com/google/cel-go/common/types/traits/traits.go17
-rw-r--r--vendor/github.com/google/cel-go/common/types/type.go102
-rw-r--r--vendor/github.com/google/cel-go/common/types/types.go864
-rw-r--r--vendor/github.com/google/cel-go/common/types/uint.go22
-rw-r--r--vendor/github.com/google/cel-go/common/types/unknown.go290
-rw-r--r--vendor/github.com/google/cel-go/common/types/util.go2
-rw-r--r--vendor/github.com/google/cel-go/ext/BUILD.bazel23
-rw-r--r--vendor/github.com/google/cel-go/ext/README.md520
-rw-r--r--vendor/github.com/google/cel-go/ext/bindings.go282
-rw-r--r--vendor/github.com/google/cel-go/ext/comprehensions.go410
-rw-r--r--vendor/github.com/google/cel-go/ext/encoders.go16
-rw-r--r--vendor/github.com/google/cel-go/ext/formatting.go904
-rw-r--r--vendor/github.com/google/cel-go/ext/guards.go22
-rw-r--r--vendor/github.com/google/cel-go/ext/lists.go560
-rw-r--r--vendor/github.com/google/cel-go/ext/math.go637
-rw-r--r--vendor/github.com/google/cel-go/ext/native.go348
-rw-r--r--vendor/github.com/google/cel-go/ext/protos.go49
-rw-r--r--vendor/github.com/google/cel-go/ext/sets.go125
-rw-r--r--vendor/github.com/google/cel-go/ext/strings.go510
-rw-r--r--vendor/github.com/google/cel-go/interpreter/BUILD.bazel14
-rw-r--r--vendor/github.com/google/cel-go/interpreter/activation.go35
-rw-r--r--vendor/github.com/google/cel-go/interpreter/attribute_patterns.go44
-rw-r--r--vendor/github.com/google/cel-go/interpreter/attributes.go310
-rw-r--r--vendor/github.com/google/cel-go/interpreter/decorators.go10
-rw-r--r--vendor/github.com/google/cel-go/interpreter/dispatcher.go2
-rw-r--r--vendor/github.com/google/cel-go/interpreter/evalstate.go6
-rw-r--r--vendor/github.com/google/cel-go/interpreter/formatting.go383
-rw-r--r--vendor/github.com/google/cel-go/interpreter/functions/BUILD.bazel9
-rw-r--r--vendor/github.com/google/cel-go/interpreter/functions/functions.go33
-rw-r--r--vendor/github.com/google/cel-go/interpreter/functions/standard.go270
-rw-r--r--vendor/github.com/google/cel-go/interpreter/interpretable.go720
-rw-r--r--vendor/github.com/google/cel-go/interpreter/interpreter.go48
-rw-r--r--vendor/github.com/google/cel-go/interpreter/planner.go350
-rw-r--r--vendor/github.com/google/cel-go/interpreter/prune.go580
-rw-r--r--vendor/github.com/google/cel-go/interpreter/runtimecost.go117
-rw-r--r--vendor/github.com/google/cel-go/parser/BUILD.bazel11
-rw-r--r--vendor/github.com/google/cel-go/parser/errors.go17
-rw-r--r--vendor/github.com/google/cel-go/parser/gen/BUILD.bazel4
-rw-r--r--vendor/github.com/google/cel-go/parser/gen/cel_base_listener.go4
-rw-r--r--vendor/github.com/google/cel-go/parser/gen/cel_base_visitor.go5
-rw-r--r--vendor/github.com/google/cel-go/parser/gen/cel_lexer.go603
-rw-r--r--vendor/github.com/google/cel-go/parser/gen/cel_listener.go5
-rw-r--r--vendor/github.com/google/cel-go/parser/gen/cel_parser.go2478
-rw-r--r--vendor/github.com/google/cel-go/parser/gen/cel_visitor.go8
-rw-r--r--vendor/github.com/google/cel-go/parser/gen/generate.sh2
-rw-r--r--vendor/github.com/google/cel-go/parser/helper.go680
-rw-r--r--vendor/github.com/google/cel-go/parser/input.go4
-rw-r--r--vendor/github.com/google/cel-go/parser/macro.go240
-rw-r--r--vendor/github.com/google/cel-go/parser/options.go13
-rw-r--r--vendor/github.com/google/cel-go/parser/parser.go232
-rw-r--r--vendor/github.com/google/cel-go/parser/unparser.go222
-rw-r--r--vendor/github.com/google/certificate-transparency-go/AUTHORS3
-rw-r--r--vendor/github.com/google/certificate-transparency-go/CONTRIBUTORS3
-rw-r--r--vendor/github.com/google/certificate-transparency-go/tls/tls.go2
-rw-r--r--vendor/github.com/google/certificate-transparency-go/x509/root_aix.go10
-rw-r--r--vendor/github.com/google/certificate-transparency-go/x509/root_unix.go5
-rw-r--r--vendor/github.com/google/certificate-transparency-go/x509/root_wasip1.go19
-rw-r--r--vendor/github.com/google/certificate-transparency-go/x509/root_zos.go13
-rw-r--r--vendor/github.com/google/go-tpm/legacy/tpm2/tpm2.go15
-rw-r--r--vendor/github.com/google/pprof/profile/encode.go93
-rw-r--r--vendor/github.com/google/pprof/profile/filter.go4
-rw-r--r--vendor/github.com/google/pprof/profile/legacy_java_profile.go4
-rw-r--r--vendor/github.com/google/pprof/profile/legacy_profile.go31
-rw-r--r--vendor/github.com/google/pprof/profile/merge.go287
-rw-r--r--vendor/github.com/google/pprof/profile/profile.go84
-rw-r--r--vendor/github.com/google/pprof/profile/proto.go19
-rw-r--r--vendor/github.com/google/pprof/profile/prune.go26
-rw-r--r--vendor/github.com/google/uuid/CHANGELOG.md31
-rw-r--r--vendor/github.com/google/uuid/CONTRIBUTING.md2
-rw-r--r--vendor/github.com/google/uuid/hash.go6
-rw-r--r--vendor/github.com/google/uuid/time.go21
-rw-r--r--vendor/github.com/google/uuid/uuid.go79
-rw-r--r--vendor/github.com/google/uuid/version6.go56
-rw-r--r--vendor/github.com/google/uuid/version7.go104
145 files changed, 19568 insertions, 7745 deletions
diff --git a/vendor/github.com/google/cel-go/cel/BUILD.bazel b/vendor/github.com/google/cel-go/cel/BUILD.bazel
index ddddbd2..81549fb 100644
--- a/vendor/github.com/google/cel-go/cel/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/cel/BUILD.bazel
@@ -10,11 +10,15 @@ go_library(
"cel.go",
"decls.go",
"env.go",
+ "folding.go",
"io.go",
+ "inlining.go",
"library.go",
"macro.go",
+ "optimizer.go",
"options.go",
"program.go",
+ "validator.go",
],
importpath = "github.com/google/cel-go/cel",
visibility = ["//visibility:public"],
@@ -22,17 +26,21 @@ go_library(
"//checker:go_default_library",
"//checker/decls:go_default_library",
"//common:go_default_library",
+ "//common/ast:go_default_library",
"//common/containers:go_default_library",
+ "//common/decls:go_default_library",
+ "//common/functions:go_default_library",
"//common/operators:go_default_library",
"//common/overloads:go_default_library",
+ "//common/stdlib:go_default_library",
"//common/types:go_default_library",
"//common/types/pb:go_default_library",
"//common/types/ref:go_default_library",
"//common/types/traits:go_default_library",
"//interpreter:go_default_library",
- "//interpreter/functions:go_default_library",
"//parser:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@dev_cel_expr//:expr",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//reflect/protodesc:go_default_library",
"@org_golang_google_protobuf//reflect/protoreflect:go_default_library",
@@ -52,7 +60,11 @@ go_test(
"cel_test.go",
"decls_test.go",
"env_test.go",
+ "folding_test.go",
"io_test.go",
+ "inlining_test.go",
+ "optimizer_test.go",
+ "validator_test.go",
],
data = [
"//cel/testdata:gen_test_fds",
@@ -66,12 +78,14 @@ go_test(
"//common/types:go_default_library",
"//common/types/ref:go_default_library",
"//common/types/traits:go_default_library",
+ "//ext:go_default_library",
"//test:go_default_library",
"//test/proto2pb:go_default_library",
"//test/proto3pb:go_default_library",
- "@io_bazel_rules_go//proto/wkt:descriptor_go_proto",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
+ "@org_golang_google_protobuf//encoding/prototext:go_default_library",
"@org_golang_google_protobuf//types/known/structpb:go_default_library",
+ "@org_golang_google_protobuf//types/known/wrapperspb:go_default_library",
],
)
diff --git a/vendor/github.com/google/cel-go/cel/decls.go b/vendor/github.com/google/cel-go/cel/decls.go
index c0624d1..4188060 100644
--- a/vendor/github.com/google/cel-go/cel/decls.go
+++ b/vendor/github.com/google/cel-go/cel/decls.go
@@ -16,341 +16,134 @@ package cel
import (
"fmt"
- "strings"
- "github.com/google/cel-go/checker/decls"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/decls"
+ "github.com/google/cel-go/common/functions"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
- "github.com/google/cel-go/interpreter/functions"
+ celpb "cel.dev/expr"
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
// Kind indicates a CEL type's kind which is used to differentiate quickly between simple and complex types.
-type Kind uint
+type Kind = types.Kind
const (
// DynKind represents a dynamic type. This kind only exists at type-check time.
- DynKind Kind = iota
+ DynKind Kind = types.DynKind
// AnyKind represents a google.protobuf.Any type. This kind only exists at type-check time.
- AnyKind
+ AnyKind = types.AnyKind
// BoolKind represents a boolean type.
- BoolKind
+ BoolKind = types.BoolKind
// BytesKind represents a bytes type.
- BytesKind
+ BytesKind = types.BytesKind
// DoubleKind represents a double type.
- DoubleKind
+ DoubleKind = types.DoubleKind
// DurationKind represents a CEL duration type.
- DurationKind
+ DurationKind = types.DurationKind
// IntKind represents an integer type.
- IntKind
+ IntKind = types.IntKind
// ListKind represents a list type.
- ListKind
+ ListKind = types.ListKind
// MapKind represents a map type.
- MapKind
+ MapKind = types.MapKind
// NullTypeKind represents a null type.
- NullTypeKind
+ NullTypeKind = types.NullTypeKind
// OpaqueKind represents an abstract type which has no accessible fields.
- OpaqueKind
+ OpaqueKind = types.OpaqueKind
// StringKind represents a string type.
- StringKind
+ StringKind = types.StringKind
// StructKind represents a structured object with typed fields.
- StructKind
+ StructKind = types.StructKind
// TimestampKind represents a a CEL time type.
- TimestampKind
+ TimestampKind = types.TimestampKind
// TypeKind represents the CEL type.
- TypeKind
+ TypeKind = types.TypeKind
// TypeParamKind represents a parameterized type whose type name will be resolved at type-check time, if possible.
- TypeParamKind
+ TypeParamKind = types.TypeParamKind
// UintKind represents a uint type.
- UintKind
+ UintKind = types.UintKind
)
var (
// AnyType represents the google.protobuf.Any type.
- AnyType = &Type{
- kind: AnyKind,
- runtimeType: types.NewTypeValue("google.protobuf.Any"),
- }
+ AnyType = types.AnyType
// BoolType represents the bool type.
- BoolType = &Type{
- kind: BoolKind,
- runtimeType: types.BoolType,
- }
+ BoolType = types.BoolType
// BytesType represents the bytes type.
- BytesType = &Type{
- kind: BytesKind,
- runtimeType: types.BytesType,
- }
+ BytesType = types.BytesType
// DoubleType represents the double type.
- DoubleType = &Type{
- kind: DoubleKind,
- runtimeType: types.DoubleType,
- }
+ DoubleType = types.DoubleType
// DurationType represents the CEL duration type.
- DurationType = &Type{
- kind: DurationKind,
- runtimeType: types.DurationType,
- }
+ DurationType = types.DurationType
// DynType represents a dynamic CEL type whose type will be determined at runtime from context.
- DynType = &Type{
- kind: DynKind,
- runtimeType: types.NewTypeValue("dyn"),
- }
+ DynType = types.DynType
// IntType represents the int type.
- IntType = &Type{
- kind: IntKind,
- runtimeType: types.IntType,
- }
+ IntType = types.IntType
// NullType represents the type of a null value.
- NullType = &Type{
- kind: NullTypeKind,
- runtimeType: types.NullType,
- }
+ NullType = types.NullType
// StringType represents the string type.
- StringType = &Type{
- kind: StringKind,
- runtimeType: types.StringType,
- }
+ StringType = types.StringType
// TimestampType represents the time type.
- TimestampType = &Type{
- kind: TimestampKind,
- runtimeType: types.TimestampType,
- }
+ TimestampType = types.TimestampType
// TypeType represents a CEL type
- TypeType = &Type{
- kind: TypeKind,
- runtimeType: types.TypeType,
- }
+ TypeType = types.TypeType
// UintType represents a uint type.
- UintType = &Type{
- kind: UintKind,
- runtimeType: types.UintType,
- }
+ UintType = types.UintType
+
+ // function references for instantiating new types.
+
+ // ListType creates an instances of a list type value with the provided element type.
+ ListType = types.NewListType
+ // MapType creates an instance of a map type value with the provided key and value types.
+ MapType = types.NewMapType
+ // NullableType creates an instance of a nullable type with the provided wrapped type.
+ //
+ // Note: only primitive types are supported as wrapped types.
+ NullableType = types.NewNullableType
+ // OptionalType creates an abstract parameterized type instance corresponding to CEL's notion of optional.
+ OptionalType = types.NewOptionalType
+ // OpaqueType creates an abstract parameterized type with a given name.
+ OpaqueType = types.NewOpaqueType
+ // ObjectType creates a type references to an externally defined type, e.g. a protobuf message type.
+ ObjectType = types.NewObjectType
+ // TypeParamType creates a parameterized type instance.
+ TypeParamType = types.NewTypeParamType
)
// Type holds a reference to a runtime type with an optional type-checked set of type parameters.
-type Type struct {
- // kind indicates general category of the type.
- kind Kind
-
- // runtimeType is the runtime type of the declaration.
- runtimeType ref.Type
-
- // parameters holds the optional type-checked set of type parameters that are used during static analysis.
- parameters []*Type
-
- // isAssignableType function determines whether one type is assignable to this type.
- // A nil value for the isAssignableType function falls back to equality of kind, runtimeType, and parameters.
- isAssignableType func(other *Type) bool
-
- // isAssignableRuntimeType function determines whether the runtime type (with erasure) is assignable to this type.
- // A nil value for the isAssignableRuntimeType function falls back to the equality of the type or type name.
- isAssignableRuntimeType func(other ref.Val) bool
-}
-
-// IsAssignableType determines whether the current type is type-check assignable from the input fromType.
-func (t *Type) IsAssignableType(fromType *Type) bool {
- if t.isAssignableType != nil {
- return t.isAssignableType(fromType)
- }
- return t.defaultIsAssignableType(fromType)
-}
-
-// IsAssignableRuntimeType determines whether the current type is runtime assignable from the input runtimeType.
-//
-// At runtime, parameterized types are erased and so a function which type-checks to support a map(string, string)
-// will have a runtime assignable type of a map.
-func (t *Type) IsAssignableRuntimeType(val ref.Val) bool {
- if t.isAssignableRuntimeType != nil {
- return t.isAssignableRuntimeType(val)
- }
- return t.defaultIsAssignableRuntimeType(val)
-}
-
-// String returns a human-readable definition of the type name.
-func (t *Type) String() string {
- if len(t.parameters) == 0 {
- return t.runtimeType.TypeName()
- }
- params := make([]string, len(t.parameters))
- for i, p := range t.parameters {
- params[i] = p.String()
- }
- return fmt.Sprintf("%s(%s)", t.runtimeType.TypeName(), strings.Join(params, ", "))
-}
-
-// isDyn indicates whether the type is dynamic in any way.
-func (t *Type) isDyn() bool {
- return t.kind == DynKind || t.kind == AnyKind || t.kind == TypeParamKind
-}
+type Type = types.Type
-// equals indicates whether two types have the same kind, type name, and parameters.
-func (t *Type) equals(other *Type) bool {
- if t.kind != other.kind ||
- t.runtimeType.TypeName() != other.runtimeType.TypeName() ||
- len(t.parameters) != len(other.parameters) {
- return false
- }
- for i, p := range t.parameters {
- if !p.equals(other.parameters[i]) {
- return false
- }
- }
- return true
-}
-
-// defaultIsAssignableType provides the standard definition of what it means for one type to be assignable to another
-// where any of the following may return a true result:
-// - The from types are the same instance
-// - The target type is dynamic
-// - The fromType has the same kind and type name as the target type, and all parameters of the target type
-//
-// are IsAssignableType() from the parameters of the fromType.
-func (t *Type) defaultIsAssignableType(fromType *Type) bool {
- if t == fromType || t.isDyn() {
- return true
- }
- if t.kind != fromType.kind ||
- t.runtimeType.TypeName() != fromType.runtimeType.TypeName() ||
- len(t.parameters) != len(fromType.parameters) {
- return false
- }
- for i, tp := range t.parameters {
- fp := fromType.parameters[i]
- if !tp.IsAssignableType(fp) {
- return false
- }
- }
- return true
-}
-
-// defaultIsAssignableRuntimeType inspects the type and in the case of list and map elements, the key and element types
-// to determine whether a ref.Val is assignable to the declared type for a function signature.
-func (t *Type) defaultIsAssignableRuntimeType(val ref.Val) bool {
- valType := val.Type()
- if !(t.runtimeType == valType || t.isDyn() || t.runtimeType.TypeName() == valType.TypeName()) {
- return false
- }
- switch t.runtimeType {
- case types.ListType:
- elemType := t.parameters[0]
- l := val.(traits.Lister)
- if l.Size() == types.IntZero {
- return true
- }
- it := l.Iterator()
- for it.HasNext() == types.True {
- elemVal := it.Next()
- return elemType.IsAssignableRuntimeType(elemVal)
- }
- case types.MapType:
- keyType := t.parameters[0]
- elemType := t.parameters[1]
- m := val.(traits.Mapper)
- if m.Size() == types.IntZero {
- return true
- }
- it := m.Iterator()
- for it.HasNext() == types.True {
- keyVal := it.Next()
- elemVal := m.Get(keyVal)
- return keyType.IsAssignableRuntimeType(keyVal) && elemType.IsAssignableRuntimeType(elemVal)
- }
- }
- return true
-}
-
-// ListType creates an instances of a list type value with the provided element type.
-func ListType(elemType *Type) *Type {
- return &Type{
- kind: ListKind,
- runtimeType: types.ListType,
- parameters: []*Type{elemType},
- }
-}
-
-// MapType creates an instance of a map type value with the provided key and value types.
-func MapType(keyType, valueType *Type) *Type {
- return &Type{
- kind: MapKind,
- runtimeType: types.MapType,
- parameters: []*Type{keyType, valueType},
- }
-}
-
-// NullableType creates an instance of a nullable type with the provided wrapped type.
-//
-// Note: only primitive types are supported as wrapped types.
-func NullableType(wrapped *Type) *Type {
- return &Type{
- kind: wrapped.kind,
- runtimeType: wrapped.runtimeType,
- parameters: wrapped.parameters,
- isAssignableType: func(other *Type) bool {
- return NullType.IsAssignableType(other) || wrapped.IsAssignableType(other)
- },
- isAssignableRuntimeType: func(other ref.Val) bool {
- return NullType.IsAssignableRuntimeType(other) || wrapped.IsAssignableRuntimeType(other)
- },
- }
-}
-
-// OptionalType creates an abstract parameterized type instance corresponding to CEL's notion of optional.
-func OptionalType(param *Type) *Type {
- return OpaqueType("optional", param)
-}
-
-// OpaqueType creates an abstract parameterized type with a given name.
-func OpaqueType(name string, params ...*Type) *Type {
- return &Type{
- kind: OpaqueKind,
- runtimeType: types.NewTypeValue(name),
- parameters: params,
- }
-}
-
-// ObjectType creates a type references to an externally defined type, e.g. a protobuf message type.
-func ObjectType(typeName string) *Type {
- return &Type{
- kind: StructKind,
- runtimeType: types.NewObjectTypeValue(typeName),
- }
-}
-
-// TypeParamType creates a parameterized type instance.
-func TypeParamType(paramName string) *Type {
- return &Type{
- kind: TypeParamKind,
- runtimeType: types.NewTypeValue(paramName),
+// Constant creates an instances of an identifier declaration with a variable name, type, and value.
+func Constant(name string, t *Type, v ref.Val) EnvOption {
+ return func(e *Env) (*Env, error) {
+ e.variables = append(e.variables, decls.NewConstant(name, t, v))
+ return e, nil
}
}
// Variable creates an instance of a variable declaration with a variable name and type.
func Variable(name string, t *Type) EnvOption {
return func(e *Env) (*Env, error) {
- et, err := TypeToExprType(t)
- if err != nil {
- return nil, err
- }
- e.declarations = append(e.declarations, decls.NewVar(name, et))
+ e.variables = append(e.variables, decls.NewVariable(name, t))
return e, nil
}
}
@@ -386,53 +179,30 @@ func Variable(name string, t *Type) EnvOption {
// overload as CEL can only make inferences by type-name regarding such types.
func Function(name string, opts ...FunctionOpt) EnvOption {
return func(e *Env) (*Env, error) {
- fn := &functionDecl{
- name: name,
- overloads: []*overloadDecl{},
- options: opts,
- }
- err := fn.init()
+ fn, err := decls.NewFunction(name, opts...)
if err != nil {
return nil, err
}
- _, err = functionDeclToExprDecl(fn)
- if err != nil {
- return nil, err
- }
- if existing, found := e.functions[fn.name]; found {
- fn, err = existing.merge(fn)
+ if existing, found := e.functions[fn.Name()]; found {
+ fn, err = existing.Merge(fn)
if err != nil {
return nil, err
}
}
- e.functions[name] = fn
+ e.functions[fn.Name()] = fn
return e, nil
}
}
// FunctionOpt defines a functional option for configuring a function declaration.
-type FunctionOpt func(*functionDecl) (*functionDecl, error)
+type FunctionOpt = decls.FunctionOpt
// SingletonUnaryBinding creates a singleton function definition to be used for all function overloads.
//
// Note, this approach works well if operand is expected to have a specific trait which it implements,
// e.g. traits.ContainerType. Otherwise, prefer per-overload function bindings.
func SingletonUnaryBinding(fn functions.UnaryOp, traits ...int) FunctionOpt {
- trait := 0
- for _, t := range traits {
- trait = trait | t
- }
- return func(f *functionDecl) (*functionDecl, error) {
- if f.singleton != nil {
- return nil, fmt.Errorf("function already has a singleton binding: %s", f.name)
- }
- f.singleton = &functions.Overload{
- Operator: f.name,
- Unary: fn,
- OperandTrait: trait,
- }
- return f, nil
- }
+ return decls.SingletonUnaryBinding(fn, traits...)
}
// SingletonBinaryImpl creates a singleton function definition to be used with all function overloads.
@@ -442,7 +212,7 @@ func SingletonUnaryBinding(fn functions.UnaryOp, traits ...int) FunctionOpt {
//
// Deprecated: use SingletonBinaryBinding
func SingletonBinaryImpl(fn functions.BinaryOp, traits ...int) FunctionOpt {
- return SingletonBinaryBinding(fn, traits...)
+ return decls.SingletonBinaryBinding(fn, traits...)
}
// SingletonBinaryBinding creates a singleton function definition to be used with all function overloads.
@@ -450,21 +220,7 @@ func SingletonBinaryImpl(fn functions.BinaryOp, traits ...int) FunctionOpt {
// Note, this approach works well if operand is expected to have a specific trait which it implements,
// e.g. traits.ContainerType. Otherwise, prefer per-overload function bindings.
func SingletonBinaryBinding(fn functions.BinaryOp, traits ...int) FunctionOpt {
- trait := 0
- for _, t := range traits {
- trait = trait | t
- }
- return func(f *functionDecl) (*functionDecl, error) {
- if f.singleton != nil {
- return nil, fmt.Errorf("function already has a singleton binding: %s", f.name)
- }
- f.singleton = &functions.Overload{
- Operator: f.name,
- Binary: fn,
- OperandTrait: trait,
- }
- return f, nil
- }
+ return decls.SingletonBinaryBinding(fn, traits...)
}
// SingletonFunctionImpl creates a singleton function definition to be used with all function overloads.
@@ -474,7 +230,7 @@ func SingletonBinaryBinding(fn functions.BinaryOp, traits ...int) FunctionOpt {
//
// Deprecated: use SingletonFunctionBinding
func SingletonFunctionImpl(fn functions.FunctionOp, traits ...int) FunctionOpt {
- return SingletonFunctionBinding(fn, traits...)
+ return decls.SingletonFunctionBinding(fn, traits...)
}
// SingletonFunctionBinding creates a singleton function definition to be used with all function overloads.
@@ -482,21 +238,13 @@ func SingletonFunctionImpl(fn functions.FunctionOp, traits ...int) FunctionOpt {
// Note, this approach works well if operand is expected to have a specific trait which it implements,
// e.g. traits.ContainerType. Otherwise, prefer per-overload function bindings.
func SingletonFunctionBinding(fn functions.FunctionOp, traits ...int) FunctionOpt {
- trait := 0
- for _, t := range traits {
- trait = trait | t
- }
- return func(f *functionDecl) (*functionDecl, error) {
- if f.singleton != nil {
- return nil, fmt.Errorf("function already has a singleton binding: %s", f.name)
- }
- f.singleton = &functions.Overload{
- Operator: f.name,
- Function: fn,
- OperandTrait: trait,
- }
- return f, nil
- }
+ return decls.SingletonFunctionBinding(fn, traits...)
+}
+
+// DisableDeclaration disables the function signatures, effectively removing them from the type-check
+// environment while preserving the runtime bindings.
+func DisableDeclaration(value bool) FunctionOpt {
+ return decls.DisableDeclaration(value)
}
// Overload defines a new global overload with an overload id, argument types, and result type. Through the
@@ -506,7 +254,7 @@ func SingletonFunctionBinding(fn functions.FunctionOp, traits ...int) FunctionOp
// Note: function bindings should be commonly configured with Overload instances whereas operand traits and
// strict-ness should be rare occurrences.
func Overload(overloadID string, args []*Type, resultType *Type, opts ...OverloadOpt) FunctionOpt {
- return newOverload(overloadID, false, args, resultType, opts...)
+ return decls.Overload(overloadID, args, resultType, opts...)
}
// MemberOverload defines a new receiver-style overload (or member function) with an overload id, argument types,
@@ -516,731 +264,107 @@ func Overload(overloadID string, args []*Type, resultType *Type, opts ...Overloa
// Note: function bindings should be commonly configured with Overload instances whereas operand traits and
// strict-ness should be rare occurrences.
func MemberOverload(overloadID string, args []*Type, resultType *Type, opts ...OverloadOpt) FunctionOpt {
- return newOverload(overloadID, true, args, resultType, opts...)
+ return decls.MemberOverload(overloadID, args, resultType, opts...)
}
// OverloadOpt is a functional option for configuring a function overload.
-type OverloadOpt func(*overloadDecl) (*overloadDecl, error)
+type OverloadOpt = decls.OverloadOpt
// UnaryBinding provides the implementation of a unary overload. The provided function is protected by a runtime
// type-guard which ensures runtime type agreement between the overload signature and runtime argument types.
func UnaryBinding(binding functions.UnaryOp) OverloadOpt {
- return func(o *overloadDecl) (*overloadDecl, error) {
- if o.hasBinding() {
- return nil, fmt.Errorf("overload already has a binding: %s", o.id)
- }
- if len(o.argTypes) != 1 {
- return nil, fmt.Errorf("unary function bound to non-unary overload: %s", o.id)
- }
- o.unaryOp = binding
- return o, nil
- }
+ return decls.UnaryBinding(binding)
}
// BinaryBinding provides the implementation of a binary overload. The provided function is protected by a runtime
// type-guard which ensures runtime type agreement between the overload signature and runtime argument types.
func BinaryBinding(binding functions.BinaryOp) OverloadOpt {
- return func(o *overloadDecl) (*overloadDecl, error) {
- if o.hasBinding() {
- return nil, fmt.Errorf("overload already has a binding: %s", o.id)
- }
- if len(o.argTypes) != 2 {
- return nil, fmt.Errorf("binary function bound to non-binary overload: %s", o.id)
- }
- o.binaryOp = binding
- return o, nil
- }
+ return decls.BinaryBinding(binding)
}
// FunctionBinding provides the implementation of a variadic overload. The provided function is protected by a runtime
// type-guard which ensures runtime type agreement between the overload signature and runtime argument types.
func FunctionBinding(binding functions.FunctionOp) OverloadOpt {
- return func(o *overloadDecl) (*overloadDecl, error) {
- if o.hasBinding() {
- return nil, fmt.Errorf("overload already has a binding: %s", o.id)
- }
- o.functionOp = binding
- return o, nil
- }
+ return decls.FunctionBinding(binding)
}
// OverloadIsNonStrict enables the function to be called with error and unknown argument values.
//
// Note: do not use this option unless absoluately necessary as it should be an uncommon feature.
func OverloadIsNonStrict() OverloadOpt {
- return func(o *overloadDecl) (*overloadDecl, error) {
- o.nonStrict = true
- return o, nil
- }
+ return decls.OverloadIsNonStrict()
}
// OverloadOperandTrait configures a set of traits which the first argument to the overload must implement in order to be
// successfully invoked.
func OverloadOperandTrait(trait int) OverloadOpt {
- return func(o *overloadDecl) (*overloadDecl, error) {
- o.operandTrait = trait
- return o, nil
- }
-}
-
-type functionDecl struct {
- name string
- overloads []*overloadDecl
- options []FunctionOpt
- singleton *functions.Overload
- initialized bool
-}
-
-// init ensures that a function's options have been applied.
-//
-// This function is used in both the environment configuration and internally for function merges.
-func (f *functionDecl) init() error {
- if f.initialized {
- return nil
- }
- f.initialized = true
-
- var err error
- for _, opt := range f.options {
- f, err = opt(f)
- if err != nil {
- return err
- }
- }
- if len(f.overloads) == 0 {
- return fmt.Errorf("function %s must have at least one overload", f.name)
- }
- return nil
-}
-
-// bindings produces a set of function bindings, if any are defined.
-func (f *functionDecl) bindings() ([]*functions.Overload, error) {
- overloads := []*functions.Overload{}
- nonStrict := false
- for _, o := range f.overloads {
- if o.hasBinding() {
- overload := &functions.Overload{
- Operator: o.id,
- Unary: o.guardedUnaryOp(f.name),
- Binary: o.guardedBinaryOp(f.name),
- Function: o.guardedFunctionOp(f.name),
- OperandTrait: o.operandTrait,
- NonStrict: o.nonStrict,
- }
- overloads = append(overloads, overload)
- nonStrict = nonStrict || o.nonStrict
- }
- }
- if f.singleton != nil {
- if len(overloads) != 0 {
- return nil, fmt.Errorf("singleton function incompatible with specialized overloads: %s", f.name)
- }
- return []*functions.Overload{
- {
- Operator: f.name,
- Unary: f.singleton.Unary,
- Binary: f.singleton.Binary,
- Function: f.singleton.Function,
- OperandTrait: f.singleton.OperandTrait,
- },
- }, nil
- }
- if len(overloads) == 0 {
- return overloads, nil
- }
- // Single overload. Replicate an entry for it using the function name as well.
- if len(overloads) == 1 {
- if overloads[0].Operator == f.name {
- return overloads, nil
- }
- return append(overloads, &functions.Overload{
- Operator: f.name,
- Unary: overloads[0].Unary,
- Binary: overloads[0].Binary,
- Function: overloads[0].Function,
- NonStrict: overloads[0].NonStrict,
- OperandTrait: overloads[0].OperandTrait,
- }), nil
- }
- // All of the defined overloads are wrapped into a top-level function which
- // performs dynamic dispatch to the proper overload based on the argument types.
- bindings := append([]*functions.Overload{}, overloads...)
- funcDispatch := func(args ...ref.Val) ref.Val {
- for _, o := range f.overloads {
- if !o.matchesRuntimeSignature(args...) {
- continue
- }
- switch len(args) {
- case 1:
- if o.unaryOp != nil {
- return o.unaryOp(args[0])
- }
- case 2:
- if o.binaryOp != nil {
- return o.binaryOp(args[0], args[1])
- }
- }
- if o.functionOp != nil {
- return o.functionOp(args...)
- }
- // eventually this will fall through to the noSuchOverload below.
- }
- return noSuchOverload(f.name, args...)
- }
- function := &functions.Overload{
- Operator: f.name,
- Function: funcDispatch,
- NonStrict: nonStrict,
- }
- return append(bindings, function), nil
-}
-
-// merge one function declaration with another.
-//
-// If a function is extended, by say adding new overloads to an existing function, then it is merged with the
-// prior definition of the function at which point its overloads must not collide with pre-existing overloads
-// and its bindings (singleton, or per-overload) must not conflict with previous definitions either.
-func (f *functionDecl) merge(other *functionDecl) (*functionDecl, error) {
- if f.name != other.name {
- return nil, fmt.Errorf("cannot merge unrelated functions. %s and %s", f.name, other.name)
- }
- err := f.init()
- if err != nil {
- return nil, err
- }
- err = other.init()
- if err != nil {
- return nil, err
- }
- merged := &functionDecl{
- name: f.name,
- overloads: make([]*overloadDecl, len(f.overloads)),
- options: []FunctionOpt{},
- initialized: true,
- singleton: f.singleton,
- }
- copy(merged.overloads, f.overloads)
- for _, o := range other.overloads {
- err := merged.addOverload(o)
- if err != nil {
- return nil, fmt.Errorf("function declaration merge failed: %v", err)
- }
- }
- if other.singleton != nil {
- if merged.singleton != nil {
- return nil, fmt.Errorf("function already has a binding: %s", f.name)
- }
- merged.singleton = other.singleton
- }
- return merged, nil
-}
-
-// addOverload ensures that the new overload does not collide with an existing overload signature;
-// however, if the function signatures are identical, the implementation may be rewritten as its
-// difficult to compare functions by object identity.
-func (f *functionDecl) addOverload(overload *overloadDecl) error {
- for index, o := range f.overloads {
- if o.id != overload.id && o.signatureOverlaps(overload) {
- return fmt.Errorf("overload signature collision in function %s: %s collides with %s", f.name, o.id, overload.id)
- }
- if o.id == overload.id {
- if o.signatureEquals(overload) && o.nonStrict == overload.nonStrict {
- // Allow redefinition of an overload implementation so long as the signatures match.
- f.overloads[index] = overload
- return nil
- }
- return fmt.Errorf("overload redefinition in function. %s: %s has multiple definitions", f.name, o.id)
- }
- }
- f.overloads = append(f.overloads, overload)
- return nil
-}
-
-func noSuchOverload(funcName string, args ...ref.Val) ref.Val {
- argTypes := make([]string, len(args))
- for i, arg := range args {
- argTypes[i] = arg.Type().TypeName()
- }
- signature := strings.Join(argTypes, ", ")
- return types.NewErr("no such overload: %s(%s)", funcName, signature)
-}
-
-// overloadDecl contains all of the relevant information regarding a specific function overload.
-type overloadDecl struct {
- id string
- argTypes []*Type
- resultType *Type
- memberFunction bool
-
- // binding options, optional but encouraged.
- unaryOp functions.UnaryOp
- binaryOp functions.BinaryOp
- functionOp functions.FunctionOp
-
- // behavioral options, uncommon
- nonStrict bool
- operandTrait int
-}
-
-func (o *overloadDecl) hasBinding() bool {
- return o.unaryOp != nil || o.binaryOp != nil || o.functionOp != nil
-}
-
-// guardedUnaryOp creates an invocation guard around the provided unary operator, if one is defined.
-func (o *overloadDecl) guardedUnaryOp(funcName string) functions.UnaryOp {
- if o.unaryOp == nil {
- return nil
- }
- return func(arg ref.Val) ref.Val {
- if !o.matchesRuntimeUnarySignature(arg) {
- return noSuchOverload(funcName, arg)
- }
- return o.unaryOp(arg)
- }
-}
-
-// guardedBinaryOp creates an invocation guard around the provided binary operator, if one is defined.
-func (o *overloadDecl) guardedBinaryOp(funcName string) functions.BinaryOp {
- if o.binaryOp == nil {
- return nil
- }
- return func(arg1, arg2 ref.Val) ref.Val {
- if !o.matchesRuntimeBinarySignature(arg1, arg2) {
- return noSuchOverload(funcName, arg1, arg2)
- }
- return o.binaryOp(arg1, arg2)
- }
-}
-
-// guardedFunctionOp creates an invocation guard around the provided variadic function binding, if one is provided.
-func (o *overloadDecl) guardedFunctionOp(funcName string) functions.FunctionOp {
- if o.functionOp == nil {
- return nil
- }
- return func(args ...ref.Val) ref.Val {
- if !o.matchesRuntimeSignature(args...) {
- return noSuchOverload(funcName, args...)
- }
- return o.functionOp(args...)
- }
-}
-
-// matchesRuntimeUnarySignature indicates whether the argument type is runtime assiganble to the overload's expected argument.
-func (o *overloadDecl) matchesRuntimeUnarySignature(arg ref.Val) bool {
- if o.nonStrict && types.IsUnknownOrError(arg) {
- return true
- }
- return o.argTypes[0].IsAssignableRuntimeType(arg) && (o.operandTrait == 0 || arg.Type().HasTrait(o.operandTrait))
-}
-
-// matchesRuntimeBinarySignature indicates whether the argument types are runtime assiganble to the overload's expected arguments.
-func (o *overloadDecl) matchesRuntimeBinarySignature(arg1, arg2 ref.Val) bool {
- if o.nonStrict {
- if types.IsUnknownOrError(arg1) {
- return types.IsUnknownOrError(arg2) || o.argTypes[1].IsAssignableRuntimeType(arg2)
- }
- } else if !o.argTypes[1].IsAssignableRuntimeType(arg2) {
- return false
- }
- return o.argTypes[0].IsAssignableRuntimeType(arg1) && (o.operandTrait == 0 || arg1.Type().HasTrait(o.operandTrait))
-}
-
-// matchesRuntimeSignature indicates whether the argument types are runtime assiganble to the overload's expected arguments.
-func (o *overloadDecl) matchesRuntimeSignature(args ...ref.Val) bool {
- if len(args) != len(o.argTypes) {
- return false
- }
- if len(args) == 0 {
- return true
- }
- allArgsMatch := true
- for i, arg := range args {
- if o.nonStrict && types.IsUnknownOrError(arg) {
- continue
- }
- allArgsMatch = allArgsMatch && o.argTypes[i].IsAssignableRuntimeType(arg)
- }
-
- arg := args[0]
- return allArgsMatch && (o.operandTrait == 0 || (o.nonStrict && types.IsUnknownOrError(arg)) || arg.Type().HasTrait(o.operandTrait))
-}
-
-// signatureEquals indicates whether one overload has an identical signature to another overload.
-//
-// Providing a duplicate signature is not an issue, but an overloapping signature is problematic.
-func (o *overloadDecl) signatureEquals(other *overloadDecl) bool {
- if o.id != other.id || o.memberFunction != other.memberFunction || len(o.argTypes) != len(other.argTypes) {
- return false
- }
- for i, at := range o.argTypes {
- oat := other.argTypes[i]
- if !at.equals(oat) {
- return false
- }
- }
- return o.resultType.equals(other.resultType)
-}
-
-// signatureOverlaps indicates whether one overload has an overlapping signature with another overload.
-//
-// The 'other' overload must first be checked for equality before determining whether it overlaps in order to be completely accurate.
-func (o *overloadDecl) signatureOverlaps(other *overloadDecl) bool {
- if o.memberFunction != other.memberFunction || len(o.argTypes) != len(other.argTypes) {
- return false
- }
- argsOverlap := true
- for i, argType := range o.argTypes {
- otherArgType := other.argTypes[i]
- argsOverlap = argsOverlap &&
- (argType.IsAssignableType(otherArgType) ||
- otherArgType.IsAssignableType(argType))
- }
- return argsOverlap
-}
-
-func newOverload(overloadID string, memberFunction bool, args []*Type, resultType *Type, opts ...OverloadOpt) FunctionOpt {
- return func(f *functionDecl) (*functionDecl, error) {
- overload := &overloadDecl{
- id: overloadID,
- argTypes: args,
- resultType: resultType,
- memberFunction: memberFunction,
- }
- var err error
- for _, opt := range opts {
- overload, err = opt(overload)
- if err != nil {
- return nil, err
- }
- }
- err = f.addOverload(overload)
- if err != nil {
- return nil, err
- }
- return f, nil
- }
-}
-
-func maybeWrapper(t *Type, pbType *exprpb.Type) *exprpb.Type {
- if t.IsAssignableType(NullType) {
- return decls.NewWrapperType(pbType)
- }
- return pbType
+ return decls.OverloadOperandTrait(trait)
}
// TypeToExprType converts a CEL-native type representation to a protobuf CEL Type representation.
func TypeToExprType(t *Type) (*exprpb.Type, error) {
- switch t.kind {
- case AnyKind:
- return decls.Any, nil
- case BoolKind:
- return maybeWrapper(t, decls.Bool), nil
- case BytesKind:
- return maybeWrapper(t, decls.Bytes), nil
- case DoubleKind:
- return maybeWrapper(t, decls.Double), nil
- case DurationKind:
- return decls.Duration, nil
- case DynKind:
- return decls.Dyn, nil
- case IntKind:
- return maybeWrapper(t, decls.Int), nil
- case ListKind:
- et, err := TypeToExprType(t.parameters[0])
- if err != nil {
- return nil, err
- }
- return decls.NewListType(et), nil
- case MapKind:
- kt, err := TypeToExprType(t.parameters[0])
- if err != nil {
- return nil, err
- }
- vt, err := TypeToExprType(t.parameters[1])
- if err != nil {
- return nil, err
- }
- return decls.NewMapType(kt, vt), nil
- case NullTypeKind:
- return decls.Null, nil
- case OpaqueKind:
- params := make([]*exprpb.Type, len(t.parameters))
- for i, p := range t.parameters {
- pt, err := TypeToExprType(p)
- if err != nil {
- return nil, err
- }
- params[i] = pt
- }
- return decls.NewAbstractType(t.runtimeType.TypeName(), params...), nil
- case StringKind:
- return maybeWrapper(t, decls.String), nil
- case StructKind:
- switch t.runtimeType.TypeName() {
- case "google.protobuf.Any":
- return decls.Any, nil
- case "google.protobuf.Duration":
- return decls.Duration, nil
- case "google.protobuf.Timestamp":
- return decls.Timestamp, nil
- case "google.protobuf.Value":
- return decls.Dyn, nil
- case "google.protobuf.ListValue":
- return decls.NewListType(decls.Dyn), nil
- case "google.protobuf.Struct":
- return decls.NewMapType(decls.String, decls.Dyn), nil
- case "google.protobuf.BoolValue":
- return decls.NewWrapperType(decls.Bool), nil
- case "google.protobuf.BytesValue":
- return decls.NewWrapperType(decls.Bytes), nil
- case "google.protobuf.DoubleValue", "google.protobuf.FloatValue":
- return decls.NewWrapperType(decls.Double), nil
- case "google.protobuf.Int32Value", "google.protobuf.Int64Value":
- return decls.NewWrapperType(decls.Int), nil
- case "google.protobuf.StringValue":
- return decls.NewWrapperType(decls.String), nil
- case "google.protobuf.UInt32Value", "google.protobuf.UInt64Value":
- return decls.NewWrapperType(decls.Uint), nil
- default:
- return decls.NewObjectType(t.runtimeType.TypeName()), nil
- }
- case TimestampKind:
- return decls.Timestamp, nil
- case TypeParamKind:
- return decls.NewTypeParamType(t.runtimeType.TypeName()), nil
- case TypeKind:
- return decls.NewTypeType(decls.Dyn), nil
- case UintKind:
- return maybeWrapper(t, decls.Uint), nil
- }
- return nil, fmt.Errorf("missing type conversion to proto: %v", t)
+ return types.TypeToExprType(t)
}
// ExprTypeToType converts a protobuf CEL type representation to a CEL-native type representation.
func ExprTypeToType(t *exprpb.Type) (*Type, error) {
- switch t.GetTypeKind().(type) {
- case *exprpb.Type_Dyn:
- return DynType, nil
- case *exprpb.Type_AbstractType_:
- paramTypes := make([]*Type, len(t.GetAbstractType().GetParameterTypes()))
- for i, p := range t.GetAbstractType().GetParameterTypes() {
- pt, err := ExprTypeToType(p)
- if err != nil {
- return nil, err
- }
- paramTypes[i] = pt
- }
- return OpaqueType(t.GetAbstractType().GetName(), paramTypes...), nil
- case *exprpb.Type_ListType_:
- et, err := ExprTypeToType(t.GetListType().GetElemType())
- if err != nil {
- return nil, err
- }
- return ListType(et), nil
- case *exprpb.Type_MapType_:
- kt, err := ExprTypeToType(t.GetMapType().GetKeyType())
- if err != nil {
- return nil, err
- }
- vt, err := ExprTypeToType(t.GetMapType().GetValueType())
- if err != nil {
- return nil, err
- }
- return MapType(kt, vt), nil
- case *exprpb.Type_MessageType:
- switch t.GetMessageType() {
- case "google.protobuf.Any":
- return AnyType, nil
- case "google.protobuf.Duration":
- return DurationType, nil
- case "google.protobuf.Timestamp":
- return TimestampType, nil
- case "google.protobuf.Value":
- return DynType, nil
- case "google.protobuf.ListValue":
- return ListType(DynType), nil
- case "google.protobuf.Struct":
- return MapType(StringType, DynType), nil
- case "google.protobuf.BoolValue":
- return NullableType(BoolType), nil
- case "google.protobuf.BytesValue":
- return NullableType(BytesType), nil
- case "google.protobuf.DoubleValue", "google.protobuf.FloatValue":
- return NullableType(DoubleType), nil
- case "google.protobuf.Int32Value", "google.protobuf.Int64Value":
- return NullableType(IntType), nil
- case "google.protobuf.StringValue":
- return NullableType(StringType), nil
- case "google.protobuf.UInt32Value", "google.protobuf.UInt64Value":
- return NullableType(UintType), nil
- default:
- return ObjectType(t.GetMessageType()), nil
- }
- case *exprpb.Type_Null:
- return NullType, nil
- case *exprpb.Type_Primitive:
- switch t.GetPrimitive() {
- case exprpb.Type_BOOL:
- return BoolType, nil
- case exprpb.Type_BYTES:
- return BytesType, nil
- case exprpb.Type_DOUBLE:
- return DoubleType, nil
- case exprpb.Type_INT64:
- return IntType, nil
- case exprpb.Type_STRING:
- return StringType, nil
- case exprpb.Type_UINT64:
- return UintType, nil
- default:
- return nil, fmt.Errorf("unsupported primitive type: %v", t)
- }
- case *exprpb.Type_TypeParam:
- return TypeParamType(t.GetTypeParam()), nil
- case *exprpb.Type_Type:
- return TypeType, nil
- case *exprpb.Type_WellKnown:
- switch t.GetWellKnown() {
- case exprpb.Type_ANY:
- return AnyType, nil
- case exprpb.Type_DURATION:
- return DurationType, nil
- case exprpb.Type_TIMESTAMP:
- return TimestampType, nil
- default:
- return nil, fmt.Errorf("unsupported well-known type: %v", t)
- }
- case *exprpb.Type_Wrapper:
- t, err := ExprTypeToType(&exprpb.Type{TypeKind: &exprpb.Type_Primitive{Primitive: t.GetWrapper()}})
- if err != nil {
- return nil, err
- }
- return NullableType(t), nil
- default:
- return nil, fmt.Errorf("unsupported type: %v", t)
- }
+ return types.ExprTypeToType(t)
}
// ExprDeclToDeclaration converts a protobuf CEL declaration to a CEL-native declaration, either a Variable or Function.
func ExprDeclToDeclaration(d *exprpb.Decl) (EnvOption, error) {
+ return AlphaProtoAsDeclaration(d)
+}
+
+// AlphaProtoAsDeclaration converts a v1alpha1.Decl value describing a variable or function into an EnvOption.
+func AlphaProtoAsDeclaration(d *exprpb.Decl) (EnvOption, error) {
+ canonical := &celpb.Decl{}
+ if err := convertProto(d, canonical); err != nil {
+ return nil, err
+ }
+ return ProtoAsDeclaration(canonical)
+}
+
+// ProtoAsDeclaration converts a canonical celpb.Decl value describing a variable or function into an EnvOption.
+func ProtoAsDeclaration(d *celpb.Decl) (EnvOption, error) {
switch d.GetDeclKind().(type) {
- case *exprpb.Decl_Function:
+ case *celpb.Decl_Function:
overloads := d.GetFunction().GetOverloads()
opts := make([]FunctionOpt, len(overloads))
for i, o := range overloads {
args := make([]*Type, len(o.GetParams()))
for j, p := range o.GetParams() {
- a, err := ExprTypeToType(p)
+ a, err := types.ProtoAsType(p)
if err != nil {
return nil, err
}
args[j] = a
}
- res, err := ExprTypeToType(o.GetResultType())
+ res, err := types.ProtoAsType(o.GetResultType())
if err != nil {
return nil, err
}
- opts[i] = Overload(o.GetOverloadId(), args, res)
+ if o.IsInstanceFunction {
+ opts[i] = decls.MemberOverload(o.GetOverloadId(), args, res)
+ } else {
+ opts[i] = decls.Overload(o.GetOverloadId(), args, res)
+ }
}
return Function(d.GetName(), opts...), nil
- case *exprpb.Decl_Ident:
- t, err := ExprTypeToType(d.GetIdent().GetType())
+ case *celpb.Decl_Ident:
+ t, err := types.ProtoAsType(d.GetIdent().GetType())
if err != nil {
return nil, err
}
- return Variable(d.GetName(), t), nil
- default:
- return nil, fmt.Errorf("unsupported decl: %v", d)
- }
-
-}
-
-func functionDeclToExprDecl(f *functionDecl) (*exprpb.Decl, error) {
- overloads := make([]*exprpb.Decl_FunctionDecl_Overload, len(f.overloads))
- i := 0
- for _, o := range f.overloads {
- paramNames := map[string]struct{}{}
- argTypes := make([]*exprpb.Type, len(o.argTypes))
- for j, a := range o.argTypes {
- collectParamNames(paramNames, a)
- at, err := TypeToExprType(a)
- if err != nil {
- return nil, err
- }
- argTypes[j] = at
+ if d.GetIdent().GetValue() == nil {
+ return Variable(d.GetName(), t), nil
}
- collectParamNames(paramNames, o.resultType)
- resultType, err := TypeToExprType(o.resultType)
+ val, err := ast.ProtoConstantAsVal(d.GetIdent().GetValue())
if err != nil {
return nil, err
}
- if len(paramNames) == 0 {
- if o.memberFunction {
- overloads[i] = decls.NewInstanceOverload(o.id, argTypes, resultType)
- } else {
- overloads[i] = decls.NewOverload(o.id, argTypes, resultType)
- }
- } else {
- params := []string{}
- for pn := range paramNames {
- params = append(params, pn)
- }
- if o.memberFunction {
- overloads[i] = decls.NewParameterizedInstanceOverload(o.id, argTypes, resultType, params)
- } else {
- overloads[i] = decls.NewParameterizedOverload(o.id, argTypes, resultType, params)
- }
- }
- i++
- }
- return decls.NewFunction(f.name, overloads...), nil
-}
-
-func collectParamNames(paramNames map[string]struct{}, arg *Type) {
- if arg.kind == TypeParamKind {
- paramNames[arg.runtimeType.TypeName()] = struct{}{}
- }
- for _, param := range arg.parameters {
- collectParamNames(paramNames, param)
- }
-}
-
-func typeValueToKind(tv *types.TypeValue) (Kind, error) {
- switch tv {
- case types.BoolType:
- return BoolKind, nil
- case types.DoubleType:
- return DoubleKind, nil
- case types.IntType:
- return IntKind, nil
- case types.UintType:
- return UintKind, nil
- case types.ListType:
- return ListKind, nil
- case types.MapType:
- return MapKind, nil
- case types.StringType:
- return StringKind, nil
- case types.BytesType:
- return BytesKind, nil
- case types.DurationType:
- return DurationKind, nil
- case types.TimestampType:
- return TimestampKind, nil
- case types.NullType:
- return NullTypeKind, nil
- case types.TypeType:
- return TypeKind, nil
+ return Constant(d.GetName(), t, val), nil
default:
- switch tv.TypeName() {
- case "dyn":
- return DynKind, nil
- case "google.protobuf.Any":
- return AnyKind, nil
- case "optional":
- return OpaqueKind, nil
- default:
- return 0, fmt.Errorf("no known conversion for type of %s", tv.TypeName())
- }
+ return nil, fmt.Errorf("unsupported decl: %v", d)
}
}
diff --git a/vendor/github.com/google/cel-go/cel/env.go b/vendor/github.com/google/cel-go/cel/env.go
index 8cf442e..caee8e8 100644
--- a/vendor/github.com/google/cel-go/cel/env.go
+++ b/vendor/github.com/google/cel-go/cel/env.go
@@ -16,13 +16,14 @@ package cel
import (
"errors"
- "fmt"
"sync"
"github.com/google/cel-go/checker"
- "github.com/google/cel-go/checker/decls"
+ chkdecls "github.com/google/cel-go/checker/decls"
"github.com/google/cel-go/common"
+ celast "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/containers"
+ "github.com/google/cel-go/common/decls"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/interpreter"
@@ -37,82 +38,114 @@ type Source = common.Source
// Ast representing the checked or unchecked expression, its source, and related metadata such as
// source position information.
type Ast struct {
- expr *exprpb.Expr
- info *exprpb.SourceInfo
- source Source
- refMap map[int64]*exprpb.Reference
- typeMap map[int64]*exprpb.Type
+ source Source
+ impl *celast.AST
+}
+
+// NativeRep converts the AST to a Go-native representation.
+func (ast *Ast) NativeRep() *celast.AST {
+ if ast == nil {
+ return nil
+ }
+ return ast.impl
}
// Expr returns the proto serializable instance of the parsed/checked expression.
+//
+// Deprecated: prefer cel.AstToCheckedExpr() or cel.AstToParsedExpr() and call GetExpr()
+// the result instead.
func (ast *Ast) Expr() *exprpb.Expr {
- return ast.expr
+ if ast == nil {
+ return nil
+ }
+ pbExpr, _ := celast.ExprToProto(ast.NativeRep().Expr())
+ return pbExpr
}
// IsChecked returns whether the Ast value has been successfully type-checked.
func (ast *Ast) IsChecked() bool {
- return ast.typeMap != nil && len(ast.typeMap) > 0
+ return ast.NativeRep().IsChecked()
}
// SourceInfo returns character offset and newline position information about expression elements.
func (ast *Ast) SourceInfo() *exprpb.SourceInfo {
- return ast.info
+ if ast == nil {
+ return nil
+ }
+ pbInfo, _ := celast.SourceInfoToProto(ast.NativeRep().SourceInfo())
+ return pbInfo
}
// ResultType returns the output type of the expression if the Ast has been type-checked, else
-// returns decls.Dyn as the parse step cannot infer the type.
+// returns chkdecls.Dyn as the parse step cannot infer the type.
//
// Deprecated: use OutputType
func (ast *Ast) ResultType() *exprpb.Type {
- if !ast.IsChecked() {
- return decls.Dyn
+ out := ast.OutputType()
+ t, err := TypeToExprType(out)
+ if err != nil {
+ return chkdecls.Dyn
}
- return ast.typeMap[ast.expr.GetId()]
+ return t
}
// OutputType returns the output type of the expression if the Ast has been type-checked, else
// returns cel.DynType as the parse step cannot infer types.
func (ast *Ast) OutputType() *Type {
- t, err := ExprTypeToType(ast.ResultType())
- if err != nil {
- return DynType
+ if ast == nil {
+ return types.ErrorType
}
- return t
+ return ast.NativeRep().GetType(ast.NativeRep().Expr().ID())
}
// Source returns a view of the input used to create the Ast. This source may be complete or
// constructed from the SourceInfo.
func (ast *Ast) Source() Source {
+ if ast == nil {
+ return nil
+ }
return ast.source
}
// FormatType converts a type message into a string representation.
+//
+// Deprecated: prefer FormatCELType
func FormatType(t *exprpb.Type) string {
return checker.FormatCheckedType(t)
}
+// FormatCELType formats a cel.Type value to a string representation.
+//
+// The type formatting is identical to FormatType.
+func FormatCELType(t *Type) string {
+ return checker.FormatCELType(t)
+}
+
// Env encapsulates the context necessary to perform parsing, type checking, or generation of
// evaluable programs for different expressions.
type Env struct {
Container *containers.Container
- functions map[string]*functionDecl
- declarations []*exprpb.Decl
+ variables []*decls.VariableDecl
+ functions map[string]*decls.FunctionDecl
macros []parser.Macro
- adapter ref.TypeAdapter
- provider ref.TypeProvider
+ adapter types.Adapter
+ provider types.Provider
features map[int]bool
appliedFeatures map[int]bool
libraries map[string]bool
+ validators []ASTValidator
+ costOptions []checker.CostOption
// Internal parser representation
prsr *parser.Parser
prsrOpts []parser.Option
// Internal checker representation
- chk *checker.Env
- chkErr error
- chkOnce sync.Once
- chkOpts []checker.Option
+ chkMutex sync.Mutex
+ chk *checker.Env
+ chkErr error
+ chkOnce sync.Once
+ chkOpts []checker.Option
// Program options tied to the environment
progOpts []ProgramOption
@@ -153,8 +186,8 @@ func NewCustomEnv(opts ...EnvOption) (*Env, error) {
return nil, err
}
return (&Env{
- declarations: []*exprpb.Decl{},
- functions: map[string]*functionDecl{},
+ variables: []*decls.VariableDecl{},
+ functions: map[string]*decls.FunctionDecl{},
macros: []parser.Macro{},
Container: containers.DefaultContainer,
adapter: registry,
@@ -162,41 +195,63 @@ func NewCustomEnv(opts ...EnvOption) (*Env, error) {
features: map[int]bool{},
appliedFeatures: map[int]bool{},
libraries: map[string]bool{},
+ validators: []ASTValidator{},
progOpts: []ProgramOption{},
+ costOptions: []checker.CostOption{},
}).configure(opts)
}
// Check performs type-checking on the input Ast and yields a checked Ast and/or set of Issues.
+// If any `ASTValidators` are configured on the environment, they will be applied after a valid
+// type-check result. If any issues are detected, the validators will provide them on the
+// output Issues object.
//
-// Checking has failed if the returned Issues value and its Issues.Err() value are non-nil.
-// Issues should be inspected if they are non-nil, but may not represent a fatal error.
+// Either checking or validation has failed if the returned Issues value and its Issues.Err()
+// value are non-nil. Issues should be inspected if they are non-nil, but may not represent a
+// fatal error.
//
// It is possible to have both non-nil Ast and Issues values returned from this call: however,
// the mere presence of an Ast does not imply that it is valid for use.
func (e *Env) Check(ast *Ast) (*Ast, *Issues) {
- // Note, errors aren't currently possible on the Ast to ParsedExpr conversion.
- pe, _ := AstToParsedExpr(ast)
-
// Construct the internal checker env, erroring if there is an issue adding the declarations.
- err := e.initChecker()
+ chk, err := e.initChecker()
if err != nil {
errs := common.NewErrors(ast.Source())
- errs.ReportError(common.NoLocation, e.chkErr.Error())
- return nil, NewIssues(errs)
+ errs.ReportError(common.NoLocation, err.Error())
+ return nil, NewIssuesWithSourceInfo(errs, ast.NativeRep().SourceInfo())
}
- res, errs := checker.Check(pe, ast.Source(), e.chk)
+ checked, errs := checker.Check(ast.NativeRep(), ast.Source(), chk)
if len(errs.GetErrors()) > 0 {
- return nil, NewIssues(errs)
+ return nil, NewIssuesWithSourceInfo(errs, ast.NativeRep().SourceInfo())
}
// Manually create the Ast to ensure that the Ast source information (which may be more
// detailed than the information provided by Check), is returned to the caller.
- return &Ast{
- source: ast.Source(),
- expr: res.GetExpr(),
- info: res.GetSourceInfo(),
- refMap: res.GetReferenceMap(),
- typeMap: res.GetTypeMap()}, nil
+ ast = &Ast{
+ source: ast.Source(),
+ impl: checked}
+
+ // Avoid creating a validator config if it's not needed.
+ if len(e.validators) == 0 {
+ return ast, nil
+ }
+
+ // Generate a validator configuration from the set of configured validators.
+ vConfig := newValidatorConfig()
+ for _, v := range e.validators {
+ if cv, ok := v.(ASTValidatorConfigurer); ok {
+ cv.Configure(vConfig)
+ }
+ }
+ // Apply additional validators on the type-checked result.
+ iss := NewIssuesWithSourceInfo(errs, ast.NativeRep().SourceInfo())
+ for _, v := range e.validators {
+ v.Validate(e, vConfig, checked, iss)
+ }
+ if iss.Err() != nil {
+ return nil, iss
+ }
+ return ast, nil
}
// Compile combines the Parse and Check phases CEL program compilation to produce an Ast and
@@ -239,8 +294,9 @@ func (e *Env) CompileSource(src Source) (*Ast, *Issues) {
// TypeProvider are immutable, or that their underlying implementations are based on the
// ref.TypeRegistry which provides a Copy method which will be invoked by this method.
func (e *Env) Extend(opts ...EnvOption) (*Env, error) {
- if e.chkErr != nil {
- return nil, e.chkErr
+ chk, chkErr := e.getCheckerOrError()
+ if chkErr != nil {
+ return nil, chkErr
}
prsrOptsCopy := make([]parser.Option, len(e.prsrOpts))
@@ -253,17 +309,13 @@ func (e *Env) Extend(opts ...EnvOption) (*Env, error) {
copy(chkOptsCopy, e.chkOpts)
// Copy the declarations if needed.
- decsCopy := []*exprpb.Decl{}
- if e.chk != nil {
+ if chk != nil {
// If the type-checker has already been instantiated, then the e.declarations have been
// validated within the chk instance.
- chkOptsCopy = append(chkOptsCopy, checker.ValidatedDeclarations(e.chk))
- } else {
- // If the type-checker has not been instantiated, ensure the unvalidated declarations are
- // provided to the extended Env instance.
- decsCopy = make([]*exprpb.Decl, len(e.declarations))
- copy(decsCopy, e.declarations)
+ chkOptsCopy = append(chkOptsCopy, checker.ValidatedDeclarations(chk))
}
+ varsCopy := make([]*decls.VariableDecl, len(e.variables))
+ copy(varsCopy, e.variables)
// Copy macros and program options
macsCopy := make([]parser.Macro, len(e.macros))
@@ -274,8 +326,8 @@ func (e *Env) Extend(opts ...EnvOption) (*Env, error) {
// Copy the adapter / provider if they appear to be mutable.
adapter := e.adapter
provider := e.provider
- adapterReg, isAdapterReg := e.adapter.(ref.TypeRegistry)
- providerReg, isProviderReg := e.provider.(ref.TypeRegistry)
+ adapterReg, isAdapterReg := e.adapter.(*types.Registry)
+ providerReg, isProviderReg := e.provider.(*types.Registry)
// In most cases the provider and adapter will be a ref.TypeRegistry;
// however, in the rare cases where they are not, they are assumed to
// be immutable. Since it is possible to set the TypeProvider separately
@@ -306,7 +358,7 @@ func (e *Env) Extend(opts ...EnvOption) (*Env, error) {
for k, v := range e.appliedFeatures {
appliedFeaturesCopy[k] = v
}
- funcsCopy := make(map[string]*functionDecl, len(e.functions))
+ funcsCopy := make(map[string]*decls.FunctionDecl, len(e.functions))
for k, v := range e.functions {
funcsCopy[k] = v
}
@@ -314,10 +366,14 @@ func (e *Env) Extend(opts ...EnvOption) (*Env, error) {
for k, v := range e.libraries {
libsCopy[k] = v
}
+ validatorsCopy := make([]ASTValidator, len(e.validators))
+ copy(validatorsCopy, e.validators)
+ costOptsCopy := make([]checker.CostOption, len(e.costOptions))
+ copy(costOptsCopy, e.costOptions)
ext := &Env{
Container: e.Container,
- declarations: decsCopy,
+ variables: varsCopy,
functions: funcsCopy,
macros: macsCopy,
progOpts: progOptsCopy,
@@ -325,9 +381,11 @@ func (e *Env) Extend(opts ...EnvOption) (*Env, error) {
features: featuresCopy,
appliedFeatures: appliedFeaturesCopy,
libraries: libsCopy,
+ validators: validatorsCopy,
provider: provider,
chkOpts: chkOptsCopy,
prsrOpts: prsrOptsCopy,
+ costOptions: costOptsCopy,
}
return ext.configure(opts)
}
@@ -345,6 +403,36 @@ func (e *Env) HasLibrary(libName string) bool {
return exists && configured
}
+// Libraries returns a list of SingletonLibrary that have been configured in the environment.
+func (e *Env) Libraries() []string {
+ libraries := make([]string, 0, len(e.libraries))
+ for libName := range e.libraries {
+ libraries = append(libraries, libName)
+ }
+ return libraries
+}
+
+// HasFunction returns whether a specific function has been configured in the environment
+func (e *Env) HasFunction(functionName string) bool {
+ _, ok := e.functions[functionName]
+ return ok
+}
+
+// Functions returns map of Functions, keyed by function name, that have been configured in the environment.
+func (e *Env) Functions() map[string]*decls.FunctionDecl {
+ return e.functions
+}
+
+// HasValidator returns whether a specific ASTValidator has been configured in the environment.
+func (e *Env) HasValidator(name string) bool {
+ for _, v := range e.validators {
+ if v.Name() == name {
+ return true
+ }
+ }
+ return false
+}
+
// Parse parses the input expression value `txt` to a Ast and/or a set of Issues.
//
// This form of Parse creates a Source value for the input `txt` and forwards to the
@@ -362,20 +450,21 @@ func (e *Env) Parse(txt string) (*Ast, *Issues) {
// It is possible to have both non-nil Ast and Issues values returned from this call; however,
// the mere presence of an Ast does not imply that it is valid for use.
func (e *Env) ParseSource(src Source) (*Ast, *Issues) {
- res, errs := e.prsr.Parse(src)
+ parsed, errs := e.prsr.Parse(src)
if len(errs.GetErrors()) > 0 {
return nil, &Issues{errs: errs}
}
- // Manually create the Ast to ensure that the text source information is propagated on
- // subsequent calls to Check.
- return &Ast{
- source: src,
- expr: res.GetExpr(),
- info: res.GetSourceInfo()}, nil
+ return &Ast{source: src, impl: parsed}, nil
}
// Program generates an evaluable instance of the Ast within the environment (Env).
func (e *Env) Program(ast *Ast, opts ...ProgramOption) (Program, error) {
+ return e.PlanProgram(ast.NativeRep(), opts...)
+}
+
+// PlanProgram generates an evaluable instance of the AST in the go-native representation within
+// the environment (Env).
+func (e *Env) PlanProgram(a *celast.AST, opts ...ProgramOption) (Program, error) {
optSet := e.progOpts
if len(opts) != 0 {
mergedOpts := []ProgramOption{}
@@ -383,39 +472,67 @@ func (e *Env) Program(ast *Ast, opts ...ProgramOption) (Program, error) {
mergedOpts = append(mergedOpts, opts...)
optSet = mergedOpts
}
- return newProgram(e, ast, optSet)
+ return newProgram(e, a, optSet)
+}
+
+// CELTypeAdapter returns the `types.Adapter` configured for the environment.
+func (e *Env) CELTypeAdapter() types.Adapter {
+ return e.adapter
+}
+
+// CELTypeProvider returns the `types.Provider` configured for the environment.
+func (e *Env) CELTypeProvider() types.Provider {
+ return e.provider
}
// TypeAdapter returns the `ref.TypeAdapter` configured for the environment.
+//
+// Deprecated: use CELTypeAdapter()
func (e *Env) TypeAdapter() ref.TypeAdapter {
return e.adapter
}
// TypeProvider returns the `ref.TypeProvider` configured for the environment.
+//
+// Deprecated: use CELTypeProvider()
func (e *Env) TypeProvider() ref.TypeProvider {
- return e.provider
+ if legacyProvider, ok := e.provider.(ref.TypeProvider); ok {
+ return legacyProvider
+ }
+ return &interopLegacyTypeProvider{Provider: e.provider}
}
-// UnknownVars returns an interpreter.PartialActivation which marks all variables
-// declared in the Env as unknown AttributePattern values.
+// UnknownVars returns an interpreter.PartialActivation which marks all variables declared in the
+// Env as unknown AttributePattern values.
//
-// Note, the UnknownVars will behave the same as an interpreter.EmptyActivation
-// unless the PartialAttributes option is provided as a ProgramOption.
+// Note, the UnknownVars will behave the same as an interpreter.EmptyActivation unless the
+// PartialAttributes option is provided as a ProgramOption.
func (e *Env) UnknownVars() interpreter.PartialActivation {
- var unknownPatterns []*interpreter.AttributePattern
- for _, d := range e.declarations {
- switch d.GetDeclKind().(type) {
- case *exprpb.Decl_Ident:
- unknownPatterns = append(unknownPatterns,
- interpreter.NewAttributePattern(d.GetName()))
- }
- }
- part, _ := PartialVars(
- interpreter.EmptyActivation(),
- unknownPatterns...)
+ act := interpreter.EmptyActivation()
+ part, _ := PartialVars(act, e.computeUnknownVars(act)...)
return part
}
+// PartialVars returns an interpreter.PartialActivation where all variables not in the input variable
+// set, but which have been configured in the environment, are marked as unknown.
+//
+// The `vars` value may either be an interpreter.Activation or any valid input to the
+// interpreter.NewActivation call.
+//
+// Note, this is equivalent to calling cel.PartialVars and manually configuring the set of unknown
+// variables. For more advanced use cases of partial state where portions of an object graph, rather
+// than top-level variables, are missing the PartialVars() method may be a more suitable choice.
+//
+// Note, the PartialVars will behave the same as an interpreter.EmptyActivation unless the
+// PartialAttributes option is provided as a ProgramOption.
+func (e *Env) PartialVars(vars any) (interpreter.PartialActivation, error) {
+ act, err := interpreter.NewActivation(vars)
+ if err != nil {
+ return nil, err
+ }
+ return PartialVars(act, e.computeUnknownVars(act)...)
+}
+
// ResidualAst takes an Ast and its EvalDetails to produce a new Ast which only contains the
// attribute references which are unknown.
//
@@ -439,8 +556,10 @@ func (e *Env) UnknownVars() interpreter.PartialActivation {
// TODO: Consider adding an option to generate a Program.Residual to avoid round-tripping to an
// Ast format and then Program again.
func (e *Env) ResidualAst(a *Ast, details *EvalDetails) (*Ast, error) {
- pruned := interpreter.PruneAst(a.Expr(), a.SourceInfo().GetMacroCalls(), details.State())
- expr, err := AstToString(ParsedExprToAst(pruned))
+ ast := a.NativeRep()
+ pruned := interpreter.PruneAst(ast.Expr(), ast.SourceInfo().MacroCalls(), details.State())
+ newAST := &Ast{source: a.Source(), impl: pruned}
+ expr, err := AstToString(newAST)
if err != nil {
return nil, err
}
@@ -460,12 +579,11 @@ func (e *Env) ResidualAst(a *Ast, details *EvalDetails) (*Ast, error) {
// EstimateCost estimates the cost of a type checked CEL expression using the length estimates of input data and
// extension functions provided by estimator.
-func (e *Env) EstimateCost(ast *Ast, estimator checker.CostEstimator) (checker.CostEstimate, error) {
- checked, err := AstToCheckedExpr(ast)
- if err != nil {
- return checker.CostEstimate{}, fmt.Errorf("EsimateCost could not inspect Ast: %v", err)
- }
- return checker.Cost(checked, estimator), nil
+func (e *Env) EstimateCost(ast *Ast, estimator checker.CostEstimator, opts ...checker.CostOption) (checker.CostEstimate, error) {
+ extendedOpts := make([]checker.CostOption, 0, len(e.costOptions))
+ extendedOpts = append(extendedOpts, opts...)
+ extendedOpts = append(extendedOpts, e.costOptions...)
+ return checker.Cost(ast.NativeRep(), estimator, extendedOpts...)
}
// configure applies a series of EnvOptions to the current environment.
@@ -486,14 +604,6 @@ func (e *Env) configure(opts []EnvOption) (*Env, error) {
return nil, err
}
- // Initialize all of the functions configured within the environment.
- for _, fn := range e.functions {
- err = fn.init()
- if err != nil {
- return nil, err
- }
- }
-
// Configure the parser.
prsrOpts := []parser.Option{}
prsrOpts = append(prsrOpts, e.prsrOpts...)
@@ -502,6 +612,9 @@ func (e *Env) configure(opts []EnvOption) (*Env, error) {
if e.HasFeature(featureEnableMacroCallTracking) {
prsrOpts = append(prsrOpts, parser.PopulateMacroCalls(true))
}
+ if e.HasFeature(featureVariadicLogicalASTs) {
+ prsrOpts = append(prsrOpts, parser.EnableVariadicOperatorASTs(true))
+ }
e.prsr, err = parser.NewParser(prsrOpts...)
if err != nil {
return nil, err
@@ -509,7 +622,7 @@ func (e *Env) configure(opts []EnvOption) (*Env, error) {
// Ensure that the checker init happens eagerly rather than lazily.
if e.HasFeature(featureEagerlyValidateDeclarations) {
- err := e.initChecker()
+ _, err := e.initChecker()
if err != nil {
return nil, err
}
@@ -518,44 +631,55 @@ func (e *Env) configure(opts []EnvOption) (*Env, error) {
return e, nil
}
-func (e *Env) initChecker() error {
+func (e *Env) initChecker() (*checker.Env, error) {
e.chkOnce.Do(func() {
chkOpts := []checker.Option{}
chkOpts = append(chkOpts, e.chkOpts...)
chkOpts = append(chkOpts,
- checker.HomogeneousAggregateLiterals(
- e.HasFeature(featureDisableDynamicAggregateLiterals)),
checker.CrossTypeNumericComparisons(
e.HasFeature(featureCrossTypeNumericComparisons)))
ce, err := checker.NewEnv(e.Container, e.provider, chkOpts...)
if err != nil {
- e.chkErr = err
+ e.setCheckerOrError(nil, err)
return
}
// Add the statically configured declarations.
- err = ce.Add(e.declarations...)
+ err = ce.AddIdents(e.variables...)
if err != nil {
- e.chkErr = err
+ e.setCheckerOrError(nil, err)
return
}
// Add the function declarations which are derived from the FunctionDecl instances.
for _, fn := range e.functions {
- fnDecl, err := functionDeclToExprDecl(fn)
- if err != nil {
- e.chkErr = err
- return
+ if fn.IsDeclarationDisabled() {
+ continue
}
- err = ce.Add(fnDecl)
+ err = ce.AddFunctions(fn)
if err != nil {
- e.chkErr = err
+ e.setCheckerOrError(nil, err)
return
}
}
// Add function declarations here separately.
- e.chk = ce
+ e.setCheckerOrError(ce, nil)
})
- return e.chkErr
+ return e.getCheckerOrError()
+}
+
+// setCheckerOrError sets the checker.Env or error state in a concurrency-safe manner
+func (e *Env) setCheckerOrError(chk *checker.Env, chkErr error) {
+ e.chkMutex.Lock()
+ e.chk = chk
+ e.chkErr = chkErr
+ e.chkMutex.Unlock()
+}
+
+// getCheckerOrError gets the checker.Env or error state in a concurrency-safe manner
+func (e *Env) getCheckerOrError() (*checker.Env, error) {
+ e.chkMutex.Lock()
+ defer e.chkMutex.Unlock()
+ return e.chk, e.chkErr
}
// maybeApplyFeature determines whether the feature-guarded option is enabled, and if so applies
@@ -579,17 +703,43 @@ func (e *Env) maybeApplyFeature(feature int, option EnvOption) (*Env, error) {
return e, nil
}
+// computeUnknownVars determines a set of missing variables based on the input activation and the
+// environment's configured declaration set.
+func (e *Env) computeUnknownVars(vars interpreter.Activation) []*interpreter.AttributePattern {
+ var unknownPatterns []*interpreter.AttributePattern
+ for _, v := range e.variables {
+ varName := v.Name()
+ if _, found := vars.ResolveName(varName); found {
+ continue
+ }
+ unknownPatterns = append(unknownPatterns, interpreter.NewAttributePattern(varName))
+ }
+ return unknownPatterns
+}
+
+// Error type which references an expression id, a location within source, and a message.
+type Error = common.Error
+
// Issues defines methods for inspecting the error details of parse and check calls.
//
// Note: in the future, non-fatal warnings and notices may be inspectable via the Issues struct.
type Issues struct {
errs *common.Errors
+ info *celast.SourceInfo
}
// NewIssues returns an Issues struct from a common.Errors object.
func NewIssues(errs *common.Errors) *Issues {
+ return NewIssuesWithSourceInfo(errs, nil)
+}
+
+// NewIssuesWithSourceInfo returns an Issues struct from a common.Errors object with SourceInfo metatata
+// which can be used with the `ReportErrorAtID` method for additional error reports within the context
+// information that's inferred from an expression id.
+func NewIssuesWithSourceInfo(errs *common.Errors, info *celast.SourceInfo) *Issues {
return &Issues{
errs: errs,
+ info: info,
}
}
@@ -605,9 +755,9 @@ func (i *Issues) Err() error {
}
// Errors returns the collection of errors encountered in more granular detail.
-func (i *Issues) Errors() []common.Error {
+func (i *Issues) Errors() []*Error {
if i == nil {
- return []common.Error{}
+ return []*Error{}
}
return i.errs.GetErrors()
}
@@ -617,10 +767,10 @@ func (i *Issues) Append(other *Issues) *Issues {
if i == nil {
return other
}
- if other == nil {
+ if other == nil || i == other {
return i
}
- return NewIssues(i.errs.Append(other.errs.GetErrors()))
+ return NewIssuesWithSourceInfo(i.errs.Append(other.errs.GetErrors()), i.info)
}
// String converts the issues to a suitable display string.
@@ -631,6 +781,14 @@ func (i *Issues) String() string {
return i.errs.ToDisplayString()
}
+// ReportErrorAtID reports an error message with an optional set of formatting arguments.
+//
+// The source metadata for the expression at `id`, if present, is attached to the error report.
+// To ensure that source metadata is attached to error reports, use NewIssuesWithSourceInfo.
+func (i *Issues) ReportErrorAtID(id int64, message string, args ...any) {
+ i.errs.ReportErrorAtID(id, i.info.GetStartLocation(id), message, args...)
+}
+
// getStdEnv lazy initializes the CEL standard environment.
func getStdEnv() (*Env, error) {
stdEnvInit.Do(func() {
@@ -639,6 +797,97 @@ func getStdEnv() (*Env, error) {
return stdEnv, stdEnvErr
}
+// interopCELTypeProvider layers support for the types.Provider interface on top of a ref.TypeProvider.
+type interopCELTypeProvider struct {
+ ref.TypeProvider
+}
+
+// FindStructType returns a types.Type instance for the given fully-qualified typeName if one exists.
+//
+// This method proxies to the underlying ref.TypeProvider's FindType method and converts protobuf type
+// into a native type representation. If the conversion fails, the type is listed as not found.
+func (p *interopCELTypeProvider) FindStructType(typeName string) (*types.Type, bool) {
+ if et, found := p.FindType(typeName); found {
+ t, err := types.ExprTypeToType(et)
+ if err != nil {
+ return nil, false
+ }
+ return t, true
+ }
+ return nil, false
+}
+
+// FindStructFieldNames returns an empty set of field for the interop provider.
+//
+// To inspect the field names, migrate to a `types.Provider` implementation.
+func (p *interopCELTypeProvider) FindStructFieldNames(typeName string) ([]string, bool) {
+ return []string{}, false
+}
+
+// FindStructFieldType returns a types.FieldType instance for the given fully-qualified typeName and field
+// name, if one exists.
+//
+// This method proxies to the underlying ref.TypeProvider's FindFieldType method and converts protobuf type
+// into a native type representation. If the conversion fails, the type is listed as not found.
+func (p *interopCELTypeProvider) FindStructFieldType(structType, fieldName string) (*types.FieldType, bool) {
+ if ft, found := p.FindFieldType(structType, fieldName); found {
+ t, err := types.ExprTypeToType(ft.Type)
+ if err != nil {
+ return nil, false
+ }
+ return &types.FieldType{
+ Type: t,
+ IsSet: ft.IsSet,
+ GetFrom: ft.GetFrom,
+ }, true
+ }
+ return nil, false
+}
+
+// interopLegacyTypeProvider layers support for the ref.TypeProvider interface on top of a types.Provider.
+type interopLegacyTypeProvider struct {
+ types.Provider
+}
+
+// FindType retruns the protobuf Type representation for the input type name if one exists.
+//
+// This method proxies to the underlying types.Provider FindStructType method and converts the types.Type
+// value to a protobuf Type representation.
+//
+// Failure to convert the type will result in the type not being found.
+func (p *interopLegacyTypeProvider) FindType(typeName string) (*exprpb.Type, bool) {
+ if t, found := p.FindStructType(typeName); found {
+ et, err := types.TypeToExprType(t)
+ if err != nil {
+ return nil, false
+ }
+ return et, true
+ }
+ return nil, false
+}
+
+// FindFieldType returns the protobuf-based FieldType representation for the input type name and field,
+// if one exists.
+//
+// This call proxies to the types.Provider FindStructFieldType method and converts the types.FIeldType
+// value to a protobuf-based ref.FieldType representation if found.
+//
+// Failure to convert the FieldType will result in the field not being found.
+func (p *interopLegacyTypeProvider) FindFieldType(structType, fieldName string) (*ref.FieldType, bool) {
+ if cft, found := p.FindStructFieldType(structType, fieldName); found {
+ et, err := types.TypeToExprType(cft.Type)
+ if err != nil {
+ return nil, false
+ }
+ return &ref.FieldType{
+ Type: et,
+ IsSet: cft.IsSet,
+ GetFrom: cft.GetFrom,
+ }, true
+ }
+ return nil, false
+}
+
var (
stdEnvInit sync.Once
stdEnv *Env
diff --git a/vendor/github.com/google/cel-go/cel/folding.go b/vendor/github.com/google/cel-go/cel/folding.go
new file mode 100644
index 0000000..d706089
--- /dev/null
+++ b/vendor/github.com/google/cel-go/cel/folding.go
@@ -0,0 +1,559 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cel
+
+import (
+ "fmt"
+
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/operators"
+ "github.com/google/cel-go/common/overloads"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+ "github.com/google/cel-go/common/types/traits"
+)
+
+// ConstantFoldingOption defines a functional option for configuring constant folding.
+type ConstantFoldingOption func(opt *constantFoldingOptimizer) (*constantFoldingOptimizer, error)
+
+// MaxConstantFoldIterations limits the number of times literals may be folding during optimization.
+//
+// Defaults to 100 if not set.
+func MaxConstantFoldIterations(limit int) ConstantFoldingOption {
+ return func(opt *constantFoldingOptimizer) (*constantFoldingOptimizer, error) {
+ opt.maxFoldIterations = limit
+ return opt, nil
+ }
+}
+
+// NewConstantFoldingOptimizer creates an optimizer which inlines constant scalar an aggregate
+// literal values within function calls and select statements with their evaluated result.
+func NewConstantFoldingOptimizer(opts ...ConstantFoldingOption) (ASTOptimizer, error) {
+ folder := &constantFoldingOptimizer{
+ maxFoldIterations: defaultMaxConstantFoldIterations,
+ }
+ var err error
+ for _, o := range opts {
+ folder, err = o(folder)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return folder, nil
+}
+
+type constantFoldingOptimizer struct {
+ maxFoldIterations int
+}
+
+// Optimize queries the expression graph for scalar and aggregate literal expressions within call and
+// select statements and then evaluates them and replaces the call site with the literal result.
+//
+// Note: only values which can be represented as literals in CEL syntax are supported.
+func (opt *constantFoldingOptimizer) Optimize(ctx *OptimizerContext, a *ast.AST) *ast.AST {
+ root := ast.NavigateAST(a)
+
+ // Walk the list of foldable expression and continue to fold until there are no more folds left.
+ // All of the fold candidates returned by the constantExprMatcher should succeed unless there's
+ // a logic bug with the selection of expressions.
+ foldableExprs := ast.MatchDescendants(root, constantExprMatcher)
+ foldCount := 0
+ for len(foldableExprs) != 0 && foldCount < opt.maxFoldIterations {
+ for _, fold := range foldableExprs {
+ // If the expression could be folded because it's a non-strict call, and the
+ // branches are pruned, continue to the next fold.
+ if fold.Kind() == ast.CallKind && maybePruneBranches(ctx, fold) {
+ continue
+ }
+ // Otherwise, assume all context is needed to evaluate the expression.
+ err := tryFold(ctx, a, fold)
+ if err != nil {
+ ctx.ReportErrorAtID(fold.ID(), "constant-folding evaluation failed: %v", err.Error())
+ return a
+ }
+ }
+ foldCount++
+ foldableExprs = ast.MatchDescendants(root, constantExprMatcher)
+ }
+ // Once all of the constants have been folded, try to run through the remaining comprehensions
+ // one last time. In this case, there's no guarantee they'll run, so we only update the
+ // target comprehension node with the literal value if the evaluation succeeds.
+ for _, compre := range ast.MatchDescendants(root, ast.KindMatcher(ast.ComprehensionKind)) {
+ tryFold(ctx, a, compre)
+ }
+
+ // If the output is a list, map, or struct which contains optional entries, then prune it
+ // to make sure that the optionals, if resolved, do not surface in the output literal.
+ pruneOptionalElements(ctx, root)
+
+ // Ensure that all intermediate values in the folded expression can be represented as valid
+ // CEL literals within the AST structure. Use `PostOrderVisit` rather than `MatchDescendents`
+ // to avoid extra allocations during this final pass through the AST.
+ ast.PostOrderVisit(root, ast.NewExprVisitor(func(e ast.Expr) {
+ if e.Kind() != ast.LiteralKind {
+ return
+ }
+ val := e.AsLiteral()
+ adapted, err := adaptLiteral(ctx, val)
+ if err != nil {
+ ctx.ReportErrorAtID(root.ID(), "constant-folding evaluation failed: %v", err.Error())
+ return
+ }
+ ctx.UpdateExpr(e, adapted)
+ }))
+
+ return a
+}
+
+// tryFold attempts to evaluate a sub-expression to a literal.
+//
+// If the evaluation succeeds, the input expr value will be modified to become a literal, otherwise
+// the method will return an error.
+func tryFold(ctx *OptimizerContext, a *ast.AST, expr ast.Expr) error {
+ // Assume all context is needed to evaluate the expression.
+ subAST := &Ast{
+ impl: ast.NewCheckedAST(ast.NewAST(expr, a.SourceInfo()), a.TypeMap(), a.ReferenceMap()),
+ }
+ prg, err := ctx.Program(subAST)
+ if err != nil {
+ return err
+ }
+ out, _, err := prg.Eval(NoVars())
+ if err != nil {
+ return err
+ }
+ // Update the fold expression to be a literal.
+ ctx.UpdateExpr(expr, ctx.NewLiteral(out))
+ return nil
+}
+
+// maybePruneBranches inspects the non-strict call expression to determine whether
+// a branch can be removed. Evaluation will naturally prune logical and / or calls,
+// but conditional will not be pruned cleanly, so this is one small area where the
+// constant folding step reimplements a portion of the evaluator.
+func maybePruneBranches(ctx *OptimizerContext, expr ast.NavigableExpr) bool {
+ call := expr.AsCall()
+ args := call.Args()
+ switch call.FunctionName() {
+ case operators.LogicalAnd, operators.LogicalOr:
+ return maybeShortcircuitLogic(ctx, call.FunctionName(), args, expr)
+ case operators.Conditional:
+ cond := args[0]
+ truthy := args[1]
+ falsy := args[2]
+ if cond.Kind() != ast.LiteralKind {
+ return false
+ }
+ if cond.AsLiteral() == types.True {
+ ctx.UpdateExpr(expr, truthy)
+ } else {
+ ctx.UpdateExpr(expr, falsy)
+ }
+ return true
+ case operators.In:
+ haystack := args[1]
+ if haystack.Kind() == ast.ListKind && haystack.AsList().Size() == 0 {
+ ctx.UpdateExpr(expr, ctx.NewLiteral(types.False))
+ return true
+ }
+ needle := args[0]
+ if needle.Kind() == ast.LiteralKind && haystack.Kind() == ast.ListKind {
+ needleValue := needle.AsLiteral()
+ list := haystack.AsList()
+ for _, e := range list.Elements() {
+ if e.Kind() == ast.LiteralKind && e.AsLiteral().Equal(needleValue) == types.True {
+ ctx.UpdateExpr(expr, ctx.NewLiteral(types.True))
+ return true
+ }
+ }
+ }
+ }
+ return false
+}
+
+func maybeShortcircuitLogic(ctx *OptimizerContext, function string, args []ast.Expr, expr ast.NavigableExpr) bool {
+ shortcircuit := types.False
+ skip := types.True
+ if function == operators.LogicalOr {
+ shortcircuit = types.True
+ skip = types.False
+ }
+ newArgs := []ast.Expr{}
+ for _, arg := range args {
+ if arg.Kind() != ast.LiteralKind {
+ newArgs = append(newArgs, arg)
+ continue
+ }
+ if arg.AsLiteral() == skip {
+ continue
+ }
+ if arg.AsLiteral() == shortcircuit {
+ ctx.UpdateExpr(expr, arg)
+ return true
+ }
+ }
+ if len(newArgs) == 0 {
+ newArgs = append(newArgs, args[0])
+ ctx.UpdateExpr(expr, newArgs[0])
+ return true
+ }
+ if len(newArgs) == 1 {
+ ctx.UpdateExpr(expr, newArgs[0])
+ return true
+ }
+ ctx.UpdateExpr(expr, ctx.NewCall(function, newArgs...))
+ return true
+}
+
+// pruneOptionalElements works from the bottom up to resolve optional elements within
+// aggregate literals.
+//
+// Note, many aggregate literals will be resolved as arguments to functions or select
+// statements, so this method exists to handle the case where the literal could not be
+// fully resolved or exists outside of a call, select, or comprehension context.
+func pruneOptionalElements(ctx *OptimizerContext, root ast.NavigableExpr) {
+ aggregateLiterals := ast.MatchDescendants(root, aggregateLiteralMatcher)
+ for _, lit := range aggregateLiterals {
+ switch lit.Kind() {
+ case ast.ListKind:
+ pruneOptionalListElements(ctx, lit)
+ case ast.MapKind:
+ pruneOptionalMapEntries(ctx, lit)
+ case ast.StructKind:
+ pruneOptionalStructFields(ctx, lit)
+ }
+ }
+}
+
+func pruneOptionalListElements(ctx *OptimizerContext, e ast.Expr) {
+ l := e.AsList()
+ elems := l.Elements()
+ optIndices := l.OptionalIndices()
+ if len(optIndices) == 0 {
+ return
+ }
+ updatedElems := []ast.Expr{}
+ updatedIndices := []int32{}
+ newOptIndex := -1
+ for _, e := range elems {
+ newOptIndex++
+ if !l.IsOptional(int32(newOptIndex)) {
+ updatedElems = append(updatedElems, e)
+ continue
+ }
+ if e.Kind() != ast.LiteralKind {
+ updatedElems = append(updatedElems, e)
+ updatedIndices = append(updatedIndices, int32(newOptIndex))
+ continue
+ }
+ optElemVal, ok := e.AsLiteral().(*types.Optional)
+ if !ok {
+ updatedElems = append(updatedElems, e)
+ updatedIndices = append(updatedIndices, int32(newOptIndex))
+ continue
+ }
+ if !optElemVal.HasValue() {
+ newOptIndex-- // Skipping causes the list to get smaller.
+ continue
+ }
+ ctx.UpdateExpr(e, ctx.NewLiteral(optElemVal.GetValue()))
+ updatedElems = append(updatedElems, e)
+ }
+ ctx.UpdateExpr(e, ctx.NewList(updatedElems, updatedIndices))
+}
+
+func pruneOptionalMapEntries(ctx *OptimizerContext, e ast.Expr) {
+ m := e.AsMap()
+ entries := m.Entries()
+ updatedEntries := []ast.EntryExpr{}
+ modified := false
+ for _, e := range entries {
+ entry := e.AsMapEntry()
+ key := entry.Key()
+ val := entry.Value()
+ // If the entry is not optional, or the value-side of the optional hasn't
+ // been resolved to a literal, then preserve the entry as-is.
+ if !entry.IsOptional() || val.Kind() != ast.LiteralKind {
+ updatedEntries = append(updatedEntries, e)
+ continue
+ }
+ optElemVal, ok := val.AsLiteral().(*types.Optional)
+ if !ok {
+ updatedEntries = append(updatedEntries, e)
+ continue
+ }
+ // When the key is not a literal, but the value is, then it needs to be
+ // restored to an optional value.
+ if key.Kind() != ast.LiteralKind {
+ undoOptVal, err := adaptLiteral(ctx, optElemVal)
+ if err != nil {
+ ctx.ReportErrorAtID(val.ID(), "invalid map value literal %v: %v", optElemVal, err)
+ }
+ ctx.UpdateExpr(val, undoOptVal)
+ updatedEntries = append(updatedEntries, e)
+ continue
+ }
+ modified = true
+ if !optElemVal.HasValue() {
+ continue
+ }
+ ctx.UpdateExpr(val, ctx.NewLiteral(optElemVal.GetValue()))
+ updatedEntry := ctx.NewMapEntry(key, val, false)
+ updatedEntries = append(updatedEntries, updatedEntry)
+ }
+ if modified {
+ ctx.UpdateExpr(e, ctx.NewMap(updatedEntries))
+ }
+}
+
+func pruneOptionalStructFields(ctx *OptimizerContext, e ast.Expr) {
+ s := e.AsStruct()
+ fields := s.Fields()
+ updatedFields := []ast.EntryExpr{}
+ modified := false
+ for _, f := range fields {
+ field := f.AsStructField()
+ val := field.Value()
+ if !field.IsOptional() || val.Kind() != ast.LiteralKind {
+ updatedFields = append(updatedFields, f)
+ continue
+ }
+ optElemVal, ok := val.AsLiteral().(*types.Optional)
+ if !ok {
+ updatedFields = append(updatedFields, f)
+ continue
+ }
+ modified = true
+ if !optElemVal.HasValue() {
+ continue
+ }
+ ctx.UpdateExpr(val, ctx.NewLiteral(optElemVal.GetValue()))
+ updatedField := ctx.NewStructField(field.Name(), val, false)
+ updatedFields = append(updatedFields, updatedField)
+ }
+ if modified {
+ ctx.UpdateExpr(e, ctx.NewStruct(s.TypeName(), updatedFields))
+ }
+}
+
+// adaptLiteral converts a runtime CEL value to its equivalent literal expression.
+//
+// For strongly typed values, the type-provider will be used to reconstruct the fields
+// which are present in the literal and their equivalent initialization values.
+func adaptLiteral(ctx *OptimizerContext, val ref.Val) (ast.Expr, error) {
+ switch t := val.Type().(type) {
+ case *types.Type:
+ switch t {
+ case types.BoolType, types.BytesType, types.DoubleType, types.IntType,
+ types.NullType, types.StringType, types.UintType:
+ return ctx.NewLiteral(val), nil
+ case types.DurationType:
+ return ctx.NewCall(
+ overloads.TypeConvertDuration,
+ ctx.NewLiteral(val.ConvertToType(types.StringType)),
+ ), nil
+ case types.TimestampType:
+ return ctx.NewCall(
+ overloads.TypeConvertTimestamp,
+ ctx.NewLiteral(val.ConvertToType(types.StringType)),
+ ), nil
+ case types.OptionalType:
+ opt := val.(*types.Optional)
+ if !opt.HasValue() {
+ return ctx.NewCall("optional.none"), nil
+ }
+ target, err := adaptLiteral(ctx, opt.GetValue())
+ if err != nil {
+ return nil, err
+ }
+ return ctx.NewCall("optional.of", target), nil
+ case types.TypeType:
+ return ctx.NewIdent(val.(*types.Type).TypeName()), nil
+ case types.ListType:
+ l, ok := val.(traits.Lister)
+ if !ok {
+ return nil, fmt.Errorf("failed to adapt %v to literal", val)
+ }
+ elems := make([]ast.Expr, l.Size().(types.Int))
+ idx := 0
+ it := l.Iterator()
+ for it.HasNext() == types.True {
+ elemVal := it.Next()
+ elemExpr, err := adaptLiteral(ctx, elemVal)
+ if err != nil {
+ return nil, err
+ }
+ elems[idx] = elemExpr
+ idx++
+ }
+ return ctx.NewList(elems, []int32{}), nil
+ case types.MapType:
+ m, ok := val.(traits.Mapper)
+ if !ok {
+ return nil, fmt.Errorf("failed to adapt %v to literal", val)
+ }
+ entries := make([]ast.EntryExpr, m.Size().(types.Int))
+ idx := 0
+ it := m.Iterator()
+ for it.HasNext() == types.True {
+ keyVal := it.Next()
+ keyExpr, err := adaptLiteral(ctx, keyVal)
+ if err != nil {
+ return nil, err
+ }
+ valVal := m.Get(keyVal)
+ valExpr, err := adaptLiteral(ctx, valVal)
+ if err != nil {
+ return nil, err
+ }
+ entries[idx] = ctx.NewMapEntry(keyExpr, valExpr, false)
+ idx++
+ }
+ return ctx.NewMap(entries), nil
+ default:
+ provider := ctx.CELTypeProvider()
+ fields, found := provider.FindStructFieldNames(t.TypeName())
+ if !found {
+ return nil, fmt.Errorf("failed to adapt %v to literal", val)
+ }
+ tester := val.(traits.FieldTester)
+ indexer := val.(traits.Indexer)
+ fieldInits := []ast.EntryExpr{}
+ for _, f := range fields {
+ field := types.String(f)
+ if tester.IsSet(field) != types.True {
+ continue
+ }
+ fieldVal := indexer.Get(field)
+ fieldExpr, err := adaptLiteral(ctx, fieldVal)
+ if err != nil {
+ return nil, err
+ }
+ fieldInits = append(fieldInits, ctx.NewStructField(f, fieldExpr, false))
+ }
+ return ctx.NewStruct(t.TypeName(), fieldInits), nil
+ }
+ }
+ return nil, fmt.Errorf("failed to adapt %v to literal", val)
+}
+
+// constantExprMatcher matches calls, select statements, and comprehensions whose arguments
+// are all constant scalar or aggregate literal values.
+//
+// Only comprehensions which are not nested are included as possible constant folds, and only
+// if all variables referenced in the comprehension stack exist are only iteration or
+// accumulation variables.
+func constantExprMatcher(e ast.NavigableExpr) bool {
+ switch e.Kind() {
+ case ast.CallKind:
+ return constantCallMatcher(e)
+ case ast.SelectKind:
+ sel := e.AsSelect() // guaranteed to be a navigable value
+ return constantMatcher(sel.Operand().(ast.NavigableExpr))
+ case ast.ComprehensionKind:
+ if isNestedComprehension(e) {
+ return false
+ }
+ vars := map[string]bool{}
+ constantExprs := true
+ visitor := ast.NewExprVisitor(func(e ast.Expr) {
+ if e.Kind() == ast.ComprehensionKind {
+ nested := e.AsComprehension()
+ vars[nested.AccuVar()] = true
+ vars[nested.IterVar()] = true
+ }
+ if e.Kind() == ast.IdentKind && !vars[e.AsIdent()] {
+ constantExprs = false
+ }
+ })
+ ast.PreOrderVisit(e, visitor)
+ return constantExprs
+ default:
+ return false
+ }
+}
+
+// constantCallMatcher identifies strict and non-strict calls which can be folded.
+func constantCallMatcher(e ast.NavigableExpr) bool {
+ call := e.AsCall()
+ children := e.Children()
+ fnName := call.FunctionName()
+ if fnName == operators.LogicalAnd {
+ for _, child := range children {
+ if child.Kind() == ast.LiteralKind {
+ return true
+ }
+ }
+ }
+ if fnName == operators.LogicalOr {
+ for _, child := range children {
+ if child.Kind() == ast.LiteralKind {
+ return true
+ }
+ }
+ }
+ if fnName == operators.Conditional {
+ cond := children[0]
+ if cond.Kind() == ast.LiteralKind && cond.AsLiteral().Type() == types.BoolType {
+ return true
+ }
+ }
+ if fnName == operators.In {
+ haystack := children[1]
+ if haystack.Kind() == ast.ListKind && haystack.AsList().Size() == 0 {
+ return true
+ }
+ needle := children[0]
+ if needle.Kind() == ast.LiteralKind && haystack.Kind() == ast.ListKind {
+ needleValue := needle.AsLiteral()
+ list := haystack.AsList()
+ for _, e := range list.Elements() {
+ if e.Kind() == ast.LiteralKind && e.AsLiteral().Equal(needleValue) == types.True {
+ return true
+ }
+ }
+ }
+ }
+ // convert all other calls with constant arguments
+ for _, child := range children {
+ if !constantMatcher(child) {
+ return false
+ }
+ }
+ return true
+}
+
+func isNestedComprehension(e ast.NavigableExpr) bool {
+ parent, found := e.Parent()
+ for found {
+ if parent.Kind() == ast.ComprehensionKind {
+ return true
+ }
+ parent, found = parent.Parent()
+ }
+ return false
+}
+
+func aggregateLiteralMatcher(e ast.NavigableExpr) bool {
+ return e.Kind() == ast.ListKind || e.Kind() == ast.MapKind || e.Kind() == ast.StructKind
+}
+
+var (
+ constantMatcher = ast.ConstantValueMatcher()
+)
+
+const (
+ defaultMaxConstantFoldIterations = 100
+)
diff --git a/vendor/github.com/google/cel-go/cel/inlining.go b/vendor/github.com/google/cel-go/cel/inlining.go
new file mode 100644
index 0000000..a4530e1
--- /dev/null
+++ b/vendor/github.com/google/cel-go/cel/inlining.go
@@ -0,0 +1,228 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cel
+
+import (
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/containers"
+ "github.com/google/cel-go/common/operators"
+ "github.com/google/cel-go/common/overloads"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/traits"
+)
+
+// InlineVariable holds a variable name to be matched and an AST representing
+// the expression graph which should be used to replace it.
+type InlineVariable struct {
+ name string
+ alias string
+ def *ast.AST
+}
+
+// Name returns the qualified variable or field selection to replace.
+func (v *InlineVariable) Name() string {
+ return v.name
+}
+
+// Alias returns the alias to use when performing cel.bind() calls during inlining.
+func (v *InlineVariable) Alias() string {
+ return v.alias
+}
+
+// Expr returns the inlined expression value.
+func (v *InlineVariable) Expr() ast.Expr {
+ return v.def.Expr()
+}
+
+// Type indicates the inlined expression type.
+func (v *InlineVariable) Type() *Type {
+ return v.def.GetType(v.def.Expr().ID())
+}
+
+// NewInlineVariable declares a variable name to be replaced by a checked expression.
+func NewInlineVariable(name string, definition *Ast) *InlineVariable {
+ return NewInlineVariableWithAlias(name, name, definition)
+}
+
+// NewInlineVariableWithAlias declares a variable name to be replaced by a checked expression.
+// If the variable occurs more than once, the provided alias will be used to replace the expressions
+// where the variable name occurs.
+func NewInlineVariableWithAlias(name, alias string, definition *Ast) *InlineVariable {
+ return &InlineVariable{name: name, alias: alias, def: definition.NativeRep()}
+}
+
+// NewInliningOptimizer creates and optimizer which replaces variables with expression definitions.
+//
+// If a variable occurs one time, the variable is replaced by the inline definition. If the
+// variable occurs more than once, the variable occurences are replaced by a cel.bind() call.
+func NewInliningOptimizer(inlineVars ...*InlineVariable) ASTOptimizer {
+ return &inliningOptimizer{variables: inlineVars}
+}
+
+type inliningOptimizer struct {
+ variables []*InlineVariable
+}
+
+func (opt *inliningOptimizer) Optimize(ctx *OptimizerContext, a *ast.AST) *ast.AST {
+ root := ast.NavigateAST(a)
+ for _, inlineVar := range opt.variables {
+ matches := ast.MatchDescendants(root, opt.matchVariable(inlineVar.Name()))
+ // Skip cases where the variable isn't in the expression graph
+ if len(matches) == 0 {
+ continue
+ }
+
+ // For a single match, do a direct replacement of the expression sub-graph.
+ if len(matches) == 1 || !isBindable(matches, inlineVar.Expr(), inlineVar.Type()) {
+ for _, match := range matches {
+ // Copy the inlined AST expr and source info.
+ copyExpr := ctx.CopyASTAndMetadata(inlineVar.def)
+ opt.inlineExpr(ctx, match, copyExpr, inlineVar.Type())
+ }
+ continue
+ }
+
+ // For multiple matches, find the least common ancestor (lca) and insert the
+ // variable as a cel.bind() macro.
+ var lca ast.NavigableExpr = root
+ lcaAncestorCount := 0
+ ancestors := map[int64]int{}
+ for _, match := range matches {
+ // Update the identifier matches with the provided alias.
+ parent, found := match, true
+ for found {
+ ancestorCount, hasAncestor := ancestors[parent.ID()]
+ if !hasAncestor {
+ ancestors[parent.ID()] = 1
+ parent, found = parent.Parent()
+ continue
+ }
+ if lcaAncestorCount < ancestorCount || (lcaAncestorCount == ancestorCount && lca.Depth() < parent.Depth()) {
+ lca = parent
+ lcaAncestorCount = ancestorCount
+ }
+ ancestors[parent.ID()] = ancestorCount + 1
+ parent, found = parent.Parent()
+ }
+ aliasExpr := ctx.NewIdent(inlineVar.Alias())
+ opt.inlineExpr(ctx, match, aliasExpr, inlineVar.Type())
+ }
+
+ // Copy the inlined AST expr and source info.
+ copyExpr := ctx.CopyASTAndMetadata(inlineVar.def)
+ // Update the least common ancestor by inserting a cel.bind() call to the alias.
+ inlined, bindMacro := ctx.NewBindMacro(lca.ID(), inlineVar.Alias(), copyExpr, lca)
+ opt.inlineExpr(ctx, lca, inlined, inlineVar.Type())
+ ctx.SetMacroCall(lca.ID(), bindMacro)
+ }
+ return a
+}
+
+// inlineExpr replaces the current expression with the inlined one, unless the location of the inlining
+// happens within a presence test, e.g. has(a.b.c) -> inline alpha for a.b.c in which case an attempt is
+// made to determine whether the inlined value can be presence or existence tested.
+func (opt *inliningOptimizer) inlineExpr(ctx *OptimizerContext, prev ast.NavigableExpr, inlined ast.Expr, inlinedType *Type) {
+ switch prev.Kind() {
+ case ast.SelectKind:
+ sel := prev.AsSelect()
+ if !sel.IsTestOnly() {
+ ctx.UpdateExpr(prev, inlined)
+ return
+ }
+ opt.rewritePresenceExpr(ctx, prev, inlined, inlinedType)
+ default:
+ ctx.UpdateExpr(prev, inlined)
+ }
+}
+
+// rewritePresenceExpr converts the inlined expression, when it occurs within a has() macro, to type-safe
+// expression appropriate for the inlined type, if possible.
+//
+// If the rewrite is not possible an error is reported at the inline expression site.
+func (opt *inliningOptimizer) rewritePresenceExpr(ctx *OptimizerContext, prev, inlined ast.Expr, inlinedType *Type) {
+ // If the input inlined expression is not a select expression it won't work with the has()
+ // macro. Attempt to rewrite the presence test in terms of the typed input, otherwise error.
+ if inlined.Kind() == ast.SelectKind {
+ presenceTest, hasMacro := ctx.NewHasMacro(prev.ID(), inlined)
+ ctx.UpdateExpr(prev, presenceTest)
+ ctx.SetMacroCall(prev.ID(), hasMacro)
+ return
+ }
+
+ ctx.ClearMacroCall(prev.ID())
+ if inlinedType.IsAssignableType(NullType) {
+ ctx.UpdateExpr(prev,
+ ctx.NewCall(operators.NotEquals,
+ inlined,
+ ctx.NewLiteral(types.NullValue),
+ ))
+ return
+ }
+ if inlinedType.HasTrait(traits.SizerType) {
+ ctx.UpdateExpr(prev,
+ ctx.NewCall(operators.NotEquals,
+ ctx.NewMemberCall(overloads.Size, inlined),
+ ctx.NewLiteral(types.IntZero),
+ ))
+ return
+ }
+ ctx.ReportErrorAtID(prev.ID(), "unable to inline expression type %v into presence test", inlinedType)
+}
+
+// isBindable indicates whether the inlined type can be used within a cel.bind() if the expression
+// being replaced occurs within a presence test. Value types with a size() method or field selection
+// support can be bound.
+//
+// In future iterations, support may also be added for indexer types which can be rewritten as an `in`
+// expression; however, this would imply a rewrite of the inlined expression that may not be necessary
+// in most cases.
+func isBindable(matches []ast.NavigableExpr, inlined ast.Expr, inlinedType *Type) bool {
+ if inlinedType.IsAssignableType(NullType) ||
+ inlinedType.HasTrait(traits.SizerType) {
+ return true
+ }
+ for _, m := range matches {
+ if m.Kind() != ast.SelectKind {
+ continue
+ }
+ sel := m.AsSelect()
+ if sel.IsTestOnly() {
+ return false
+ }
+ }
+ return true
+}
+
+// matchVariable matches simple identifiers, select expressions, and presence test expressions
+// which match the (potentially) qualified variable name provided as input.
+//
+// Note, this function does not support inlining against select expressions which includes optional
+// field selection. This may be a future refinement.
+func (opt *inliningOptimizer) matchVariable(varName string) ast.ExprMatcher {
+ return func(e ast.NavigableExpr) bool {
+ if e.Kind() == ast.IdentKind && e.AsIdent() == varName {
+ return true
+ }
+ if e.Kind() == ast.SelectKind {
+ sel := e.AsSelect()
+ // While the `ToQualifiedName` call could take the select directly, this
+ // would skip presence tests from possible matches, which we would like
+ // to include.
+ qualName, found := containers.ToQualifiedName(sel.Operand())
+ return found && qualName+"."+sel.FieldName() == varName
+ }
+ return false
+ }
+}
diff --git a/vendor/github.com/google/cel-go/cel/io.go b/vendor/github.com/google/cel-go/cel/io.go
index 93ded3c..a327c96 100644
--- a/vendor/github.com/google/cel-go/cel/io.go
+++ b/vendor/github.com/google/cel-go/cel/io.go
@@ -22,18 +22,21 @@ import (
"google.golang.org/protobuf/proto"
"github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
"github.com/google/cel-go/parser"
+ celpb "cel.dev/expr"
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
anypb "google.golang.org/protobuf/types/known/anypb"
)
// CheckedExprToAst converts a checked expression proto message to an Ast.
func CheckedExprToAst(checkedExpr *exprpb.CheckedExpr) *Ast {
- return CheckedExprToAstWithSource(checkedExpr, nil)
+ checked, _ := CheckedExprToAstWithSource(checkedExpr, nil)
+ return checked
}
// CheckedExprToAstWithSource converts a checked expression proto message to an Ast,
@@ -44,29 +47,12 @@ func CheckedExprToAst(checkedExpr *exprpb.CheckedExpr) *Ast {
// through future calls.
//
// Prefer CheckedExprToAst if loading expressions from storage.
-func CheckedExprToAstWithSource(checkedExpr *exprpb.CheckedExpr, src Source) *Ast {
- refMap := checkedExpr.GetReferenceMap()
- if refMap == nil {
- refMap = map[int64]*exprpb.Reference{}
- }
- typeMap := checkedExpr.GetTypeMap()
- if typeMap == nil {
- typeMap = map[int64]*exprpb.Type{}
- }
- si := checkedExpr.GetSourceInfo()
- if si == nil {
- si = &exprpb.SourceInfo{}
- }
- if src == nil {
- src = common.NewInfoSource(si)
- }
- return &Ast{
- expr: checkedExpr.GetExpr(),
- info: si,
- source: src,
- refMap: refMap,
- typeMap: typeMap,
+func CheckedExprToAstWithSource(checkedExpr *exprpb.CheckedExpr, src Source) (*Ast, error) {
+ checked, err := ast.ToAST(checkedExpr)
+ if err != nil {
+ return nil, err
}
+ return &Ast{source: src, impl: checked}, nil
}
// AstToCheckedExpr converts an Ast to an protobuf CheckedExpr value.
@@ -76,12 +62,7 @@ func AstToCheckedExpr(a *Ast) (*exprpb.CheckedExpr, error) {
if !a.IsChecked() {
return nil, fmt.Errorf("cannot convert unchecked ast")
}
- return &exprpb.CheckedExpr{
- Expr: a.Expr(),
- SourceInfo: a.SourceInfo(),
- ReferenceMap: a.refMap,
- TypeMap: a.typeMap,
- }, nil
+ return ast.ToProto(a.NativeRep())
}
// ParsedExprToAst converts a parsed expression proto message to an Ast.
@@ -97,18 +78,12 @@ func ParsedExprToAst(parsedExpr *exprpb.ParsedExpr) *Ast {
//
// Prefer ParsedExprToAst if loading expressions from storage.
func ParsedExprToAstWithSource(parsedExpr *exprpb.ParsedExpr, src Source) *Ast {
- si := parsedExpr.GetSourceInfo()
- if si == nil {
- si = &exprpb.SourceInfo{}
- }
+ info, _ := ast.ProtoToSourceInfo(parsedExpr.GetSourceInfo())
if src == nil {
- src = common.NewInfoSource(si)
- }
- return &Ast{
- expr: parsedExpr.GetExpr(),
- info: si,
- source: src,
+ src = common.NewInfoSource(parsedExpr.GetSourceInfo())
}
+ e, _ := ast.ProtoToExpr(parsedExpr.GetExpr())
+ return &Ast{source: src, impl: ast.NewAST(e, info)}
}
// AstToParsedExpr converts an Ast to an protobuf ParsedExpr value.
@@ -124,85 +99,101 @@ func AstToParsedExpr(a *Ast) (*exprpb.ParsedExpr, error) {
// Note, the conversion may not be an exact replica of the original expression, but will produce
// a string that is semantically equivalent and whose textual representation is stable.
func AstToString(a *Ast) (string, error) {
- expr := a.Expr()
- info := a.SourceInfo()
- return parser.Unparse(expr, info)
+ return parser.Unparse(a.NativeRep().Expr(), a.NativeRep().SourceInfo())
}
-// RefValueToValue converts between ref.Val and api.expr.Value.
+// RefValueToValue converts between ref.Val and google.api.expr.v1alpha1.Value.
// The result Value is the serialized proto form. The ref.Val must not be error or unknown.
func RefValueToValue(res ref.Val) (*exprpb.Value, error) {
+ return ValueAsAlphaProto(res)
+}
+
+// ValueAsAlphaProto converts between ref.Val and google.api.expr.v1alpha1.Value.
+// The result Value is the serialized proto form. The ref.Val must not be error or unknown.
+func ValueAsAlphaProto(res ref.Val) (*exprpb.Value, error) {
+ canonical, err := ValueAsProto(res)
+ if err != nil {
+ return nil, err
+ }
+ alpha := &exprpb.Value{}
+ err = convertProto(canonical, alpha)
+ return alpha, err
+}
+
+// ValueAsProto converts between ref.Val and cel.expr.Value.
+// The result Value is the serialized proto form. The ref.Val must not be error or unknown.
+func ValueAsProto(res ref.Val) (*celpb.Value, error) {
switch res.Type() {
case types.BoolType:
- return &exprpb.Value{
- Kind: &exprpb.Value_BoolValue{BoolValue: res.Value().(bool)}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_BoolValue{BoolValue: res.Value().(bool)}}, nil
case types.BytesType:
- return &exprpb.Value{
- Kind: &exprpb.Value_BytesValue{BytesValue: res.Value().([]byte)}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_BytesValue{BytesValue: res.Value().([]byte)}}, nil
case types.DoubleType:
- return &exprpb.Value{
- Kind: &exprpb.Value_DoubleValue{DoubleValue: res.Value().(float64)}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_DoubleValue{DoubleValue: res.Value().(float64)}}, nil
case types.IntType:
- return &exprpb.Value{
- Kind: &exprpb.Value_Int64Value{Int64Value: res.Value().(int64)}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_Int64Value{Int64Value: res.Value().(int64)}}, nil
case types.ListType:
l := res.(traits.Lister)
sz := l.Size().(types.Int)
- elts := make([]*exprpb.Value, 0, int64(sz))
+ elts := make([]*celpb.Value, 0, int64(sz))
for i := types.Int(0); i < sz; i++ {
- v, err := RefValueToValue(l.Get(i))
+ v, err := ValueAsProto(l.Get(i))
if err != nil {
return nil, err
}
elts = append(elts, v)
}
- return &exprpb.Value{
- Kind: &exprpb.Value_ListValue{
- ListValue: &exprpb.ListValue{Values: elts}}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_ListValue{
+ ListValue: &celpb.ListValue{Values: elts}}}, nil
case types.MapType:
mapper := res.(traits.Mapper)
sz := mapper.Size().(types.Int)
- entries := make([]*exprpb.MapValue_Entry, 0, int64(sz))
+ entries := make([]*celpb.MapValue_Entry, 0, int64(sz))
for it := mapper.Iterator(); it.HasNext().(types.Bool); {
k := it.Next()
v := mapper.Get(k)
- kv, err := RefValueToValue(k)
+ kv, err := ValueAsProto(k)
if err != nil {
return nil, err
}
- vv, err := RefValueToValue(v)
+ vv, err := ValueAsProto(v)
if err != nil {
return nil, err
}
- entries = append(entries, &exprpb.MapValue_Entry{Key: kv, Value: vv})
+ entries = append(entries, &celpb.MapValue_Entry{Key: kv, Value: vv})
}
- return &exprpb.Value{
- Kind: &exprpb.Value_MapValue{
- MapValue: &exprpb.MapValue{Entries: entries}}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_MapValue{
+ MapValue: &celpb.MapValue{Entries: entries}}}, nil
case types.NullType:
- return &exprpb.Value{
- Kind: &exprpb.Value_NullValue{}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_NullValue{}}, nil
case types.StringType:
- return &exprpb.Value{
- Kind: &exprpb.Value_StringValue{StringValue: res.Value().(string)}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_StringValue{StringValue: res.Value().(string)}}, nil
case types.TypeType:
typeName := res.(ref.Type).TypeName()
- return &exprpb.Value{Kind: &exprpb.Value_TypeValue{TypeValue: typeName}}, nil
+ return &celpb.Value{Kind: &celpb.Value_TypeValue{TypeValue: typeName}}, nil
case types.UintType:
- return &exprpb.Value{
- Kind: &exprpb.Value_Uint64Value{Uint64Value: res.Value().(uint64)}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_Uint64Value{Uint64Value: res.Value().(uint64)}}, nil
default:
any, err := res.ConvertToNative(anyPbType)
if err != nil {
return nil, err
}
- return &exprpb.Value{
- Kind: &exprpb.Value_ObjectValue{ObjectValue: any.(*anypb.Any)}}, nil
+ return &celpb.Value{
+ Kind: &celpb.Value_ObjectValue{ObjectValue: any.(*anypb.Any)}}, nil
}
}
var (
- typeNameToTypeValue = map[string]*types.TypeValue{
+ typeNameToTypeValue = map[string]ref.Val{
"bool": types.BoolType,
"bytes": types.BytesType,
"double": types.DoubleType,
@@ -218,57 +209,71 @@ var (
anyPbType = reflect.TypeOf(&anypb.Any{})
)
-// ValueToRefValue converts between exprpb.Value and ref.Val.
-func ValueToRefValue(adapter ref.TypeAdapter, v *exprpb.Value) (ref.Val, error) {
+// ValueToRefValue converts between google.api.expr.v1alpha1.Value and ref.Val.
+func ValueToRefValue(adapter types.Adapter, v *exprpb.Value) (ref.Val, error) {
+ return AlphaProtoAsValue(adapter, v)
+}
+
+// AlphaProtoAsValue converts between google.api.expr.v1alpha1.Value and ref.Val.
+func AlphaProtoAsValue(adapter types.Adapter, v *exprpb.Value) (ref.Val, error) {
+ canonical := &celpb.Value{}
+ if err := convertProto(v, canonical); err != nil {
+ return nil, err
+ }
+ return ProtoAsValue(adapter, canonical)
+}
+
+// ProtoAsValue converts between cel.expr.Value and ref.Val.
+func ProtoAsValue(adapter types.Adapter, v *celpb.Value) (ref.Val, error) {
switch v.Kind.(type) {
- case *exprpb.Value_NullValue:
+ case *celpb.Value_NullValue:
return types.NullValue, nil
- case *exprpb.Value_BoolValue:
+ case *celpb.Value_BoolValue:
return types.Bool(v.GetBoolValue()), nil
- case *exprpb.Value_Int64Value:
+ case *celpb.Value_Int64Value:
return types.Int(v.GetInt64Value()), nil
- case *exprpb.Value_Uint64Value:
+ case *celpb.Value_Uint64Value:
return types.Uint(v.GetUint64Value()), nil
- case *exprpb.Value_DoubleValue:
+ case *celpb.Value_DoubleValue:
return types.Double(v.GetDoubleValue()), nil
- case *exprpb.Value_StringValue:
+ case *celpb.Value_StringValue:
return types.String(v.GetStringValue()), nil
- case *exprpb.Value_BytesValue:
+ case *celpb.Value_BytesValue:
return types.Bytes(v.GetBytesValue()), nil
- case *exprpb.Value_ObjectValue:
+ case *celpb.Value_ObjectValue:
any := v.GetObjectValue()
msg, err := anypb.UnmarshalNew(any, proto.UnmarshalOptions{DiscardUnknown: true})
if err != nil {
return nil, err
}
return adapter.NativeToValue(msg), nil
- case *exprpb.Value_MapValue:
+ case *celpb.Value_MapValue:
m := v.GetMapValue()
entries := make(map[ref.Val]ref.Val)
for _, entry := range m.Entries {
- key, err := ValueToRefValue(adapter, entry.Key)
+ key, err := ProtoAsValue(adapter, entry.Key)
if err != nil {
return nil, err
}
- pb, err := ValueToRefValue(adapter, entry.Value)
+ pb, err := ProtoAsValue(adapter, entry.Value)
if err != nil {
return nil, err
}
entries[key] = pb
}
return adapter.NativeToValue(entries), nil
- case *exprpb.Value_ListValue:
+ case *celpb.Value_ListValue:
l := v.GetListValue()
elts := make([]ref.Val, len(l.Values))
for i, e := range l.Values {
- rv, err := ValueToRefValue(adapter, e)
+ rv, err := ProtoAsValue(adapter, e)
if err != nil {
return nil, err
}
elts[i] = rv
}
return adapter.NativeToValue(elts), nil
- case *exprpb.Value_TypeValue:
+ case *celpb.Value_TypeValue:
typeName := v.GetTypeValue()
tv, ok := typeNameToTypeValue[typeName]
if ok {
@@ -278,3 +283,12 @@ func ValueToRefValue(adapter ref.TypeAdapter, v *exprpb.Value) (ref.Val, error)
}
return nil, errors.New("unknown value")
}
+
+func convertProto(src, dst proto.Message) error {
+ pb, err := proto.Marshal(src)
+ if err != nil {
+ return err
+ }
+ err = proto.Unmarshal(pb, dst)
+ return err
+}
diff --git a/vendor/github.com/google/cel-go/cel/library.go b/vendor/github.com/google/cel-go/cel/library.go
index 072cec3..be59f1b 100644
--- a/vendor/github.com/google/cel-go/cel/library.go
+++ b/vendor/github.com/google/cel-go/cel/library.go
@@ -15,21 +15,33 @@
package cel
import (
+ "math"
"strconv"
"strings"
"time"
- "github.com/google/cel-go/checker"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/operators"
"github.com/google/cel-go/common/overloads"
+ "github.com/google/cel-go/common/stdlib"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
"github.com/google/cel-go/interpreter"
- "github.com/google/cel-go/interpreter/functions"
"github.com/google/cel-go/parser"
)
+const (
+ optMapMacro = "optMap"
+ optFlatMapMacro = "optFlatMap"
+ hasValueFunc = "hasValue"
+ optionalNoneFunc = "optional.none"
+ optionalOfFunc = "optional.of"
+ optionalOfNonZeroValueFunc = "optional.ofNonZeroValue"
+ valueFunc = "value"
+ unusedIterVar = "#unused"
+)
+
// Library provides a collection of EnvOption and ProgramOption values used to configure a CEL
// environment for a particular use case or with a related set of functionality.
//
@@ -93,50 +105,222 @@ func (stdLibrary) LibraryName() string {
return "cel.lib.std"
}
-// EnvOptions returns options for the standard CEL function declarations and macros.
+// CompileOptions returns options for the standard CEL function declarations and macros.
func (stdLibrary) CompileOptions() []EnvOption {
return []EnvOption{
- Declarations(checker.StandardDeclarations()...),
+ func(e *Env) (*Env, error) {
+ var err error
+ for _, fn := range stdlib.Functions() {
+ existing, found := e.functions[fn.Name()]
+ if found {
+ fn, err = existing.Merge(fn)
+ if err != nil {
+ return nil, err
+ }
+ }
+ e.functions[fn.Name()] = fn
+ }
+ return e, nil
+ },
+ func(e *Env) (*Env, error) {
+ e.variables = append(e.variables, stdlib.Types()...)
+ return e, nil
+ },
Macros(StandardMacros...),
}
}
// ProgramOptions returns function implementations for the standard CEL functions.
func (stdLibrary) ProgramOptions() []ProgramOption {
- return []ProgramOption{
- Functions(functions.StandardOverloads()...),
+ return []ProgramOption{}
+}
+
+// OptionalTypes enable support for optional syntax and types in CEL.
+//
+// The optional value type makes it possible to express whether variables have
+// been provided, whether a result has been computed, and in the future whether
+// an object field path, map key value, or list index has a value.
+//
+// # Syntax Changes
+//
+// OptionalTypes are unlike other CEL extensions because they modify the CEL
+// syntax itself, notably through the use of a `?` preceding a field name or
+// index value.
+//
+// ## Field Selection
+//
+// The optional syntax in field selection is denoted as `obj.?field`. In other
+// words, if a field is set, return `optional.of(obj.field)“, else
+// `optional.none()`. The optional field selection is viral in the sense that
+// after the first optional selection all subsequent selections or indices
+// are treated as optional, i.e. the following expressions are equivalent:
+//
+// obj.?field.subfield
+// obj.?field.?subfield
+//
+// ## Indexing
+//
+// Similar to field selection, the optional syntax can be used in index
+// expressions on maps and lists:
+//
+// list[?0]
+// map[?key]
+//
+// ## Optional Field Setting
+//
+// When creating map or message literals, if a field may be optionally set
+// based on its presence, then placing a `?` before the field name or key
+// will ensure the type on the right-hand side must be optional(T) where T
+// is the type of the field or key-value.
+//
+// The following returns a map with the key expression set only if the
+// subfield is present, otherwise an empty map is created:
+//
+// {?key: obj.?field.subfield}
+//
+// ## Optional Element Setting
+//
+// When creating list literals, an element in the list may be optionally added
+// when the element expression is preceded by a `?`:
+//
+// [a, ?b, ?c] // return a list with either [a], [a, b], [a, b, c], or [a, c]
+//
+// # Optional.Of
+//
+// Create an optional(T) value of a given value with type T.
+//
+// optional.of(10)
+//
+// # Optional.OfNonZeroValue
+//
+// Create an optional(T) value of a given value with type T if it is not a
+// zero-value. A zero-value the default empty value for any given CEL type,
+// including empty protobuf message types. If the value is empty, the result
+// of this call will be optional.none().
+//
+// optional.ofNonZeroValue([1, 2, 3]) // optional(list(int))
+// optional.ofNonZeroValue([]) // optional.none()
+// optional.ofNonZeroValue(0) // optional.none()
+// optional.ofNonZeroValue("") // optional.none()
+//
+// # Optional.None
+//
+// Create an empty optional value.
+//
+// # HasValue
+//
+// Determine whether the optional contains a value.
+//
+// optional.of(b'hello').hasValue() // true
+// optional.ofNonZeroValue({}).hasValue() // false
+//
+// # Value
+//
+// Get the value contained by the optional. If the optional does not have a
+// value, the result will be a CEL error.
+//
+// optional.of(b'hello').value() // b'hello'
+// optional.ofNonZeroValue({}).value() // error
+//
+// # Or
+//
+// If the value on the left-hand side is optional.none(), the optional value
+// on the right hand side is returned. If the value on the left-hand set is
+// valued, then it is returned. This operation is short-circuiting and will
+// only evaluate as many links in the `or` chain as are needed to return a
+// non-empty optional value.
+//
+// obj.?field.or(m[?key])
+// l[?index].or(obj.?field.subfield).or(obj.?other)
+//
+// # OrValue
+//
+// Either return the value contained within the optional on the left-hand side
+// or return the alternative value on the right hand side.
+//
+// m[?key].orValue("none")
+//
+// # OptMap
+//
+// Apply a transformation to the optional's underlying value if it is not empty
+// and return an optional typed result based on the transformation. The
+// transformation expression type must return a type T which is wrapped into
+// an optional.
+//
+// msg.?elements.optMap(e, e.size()).orValue(0)
+//
+// # OptFlatMap
+//
+// Introduced in version: 1
+//
+// Apply a transformation to the optional's underlying value if it is not empty
+// and return the result. The transform expression must return an optional(T)
+// rather than type T. This can be useful when dealing with zero values and
+// conditionally generating an empty or non-empty result in ways which cannot
+// be expressed with `optMap`.
+//
+// msg.?elements.optFlatMap(e, e[?0]) // return the first element if present.
+func OptionalTypes(opts ...OptionalTypesOption) EnvOption {
+ lib := &optionalLib{version: math.MaxUint32}
+ for _, opt := range opts {
+ lib = opt(lib)
}
+ return Lib(lib)
}
-type optionalLibrary struct{}
+type optionalLib struct {
+ version uint32
+}
+
+// OptionalTypesOption is a functional interface for configuring the strings library.
+type OptionalTypesOption func(*optionalLib) *optionalLib
+
+// OptionalTypesVersion configures the version of the optional type library.
+//
+// The version limits which functions are available. Only functions introduced
+// below or equal to the given version included in the library. If this option
+// is not set, all functions are available.
+//
+// See the library documentation to determine which version a function was introduced.
+// If the documentation does not state which version a function was introduced, it can
+// be assumed to be introduced at version 0, when the library was first created.
+func OptionalTypesVersion(version uint32) OptionalTypesOption {
+ return func(lib *optionalLib) *optionalLib {
+ lib.version = version
+ return lib
+ }
+}
// LibraryName implements the SingletonLibrary interface method.
-func (optionalLibrary) LibraryName() string {
+func (lib *optionalLib) LibraryName() string {
return "cel.lib.optional"
}
// CompileOptions implements the Library interface method.
-func (optionalLibrary) CompileOptions() []EnvOption {
+func (lib *optionalLib) CompileOptions() []EnvOption {
paramTypeK := TypeParamType("K")
paramTypeV := TypeParamType("V")
optionalTypeV := OptionalType(paramTypeV)
listTypeV := ListType(paramTypeV)
mapTypeKV := MapType(paramTypeK, paramTypeV)
- return []EnvOption{
+ opts := []EnvOption{
// Enable the optional syntax in the parser.
enableOptionalSyntax(),
// Introduce the optional type.
Types(types.OptionalType),
+ // Configure the optMap and optFlatMap macros.
+ Macros(ReceiverMacro(optMapMacro, 2, optMap)),
+
// Global and member functions for working with optional values.
- Function("optional.of",
+ Function(optionalOfFunc,
Overload("optional_of", []*Type{paramTypeV}, optionalTypeV,
UnaryBinding(func(value ref.Val) ref.Val {
return types.OptionalOf(value)
}))),
- Function("optional.ofNonZeroValue",
+ Function(optionalOfNonZeroValueFunc,
Overload("optional_ofNonZeroValue", []*Type{paramTypeV}, optionalTypeV,
UnaryBinding(func(value ref.Val) ref.Val {
v, isZeroer := value.(traits.Zeroer)
@@ -145,18 +329,18 @@ func (optionalLibrary) CompileOptions() []EnvOption {
}
return types.OptionalNone
}))),
- Function("optional.none",
+ Function(optionalNoneFunc,
Overload("optional_none", []*Type{}, optionalTypeV,
FunctionBinding(func(values ...ref.Val) ref.Val {
return types.OptionalNone
}))),
- Function("value",
+ Function(valueFunc,
MemberOverload("optional_value", []*Type{optionalTypeV}, paramTypeV,
UnaryBinding(func(value ref.Val) ref.Val {
opt := value.(*types.Optional)
return opt.GetValue()
}))),
- Function("hasValue",
+ Function(hasValueFunc,
MemberOverload("optional_hasValue", []*Type{optionalTypeV}, BoolType,
UnaryBinding(func(value ref.Val) ref.Val {
opt := value.(*types.Optional)
@@ -186,17 +370,75 @@ func (optionalLibrary) CompileOptions() []EnvOption {
// Index overloads to accommodate using an optional value as the operand.
Function(operators.Index,
Overload("optional_list_index_int", []*Type{OptionalType(listTypeV), IntType}, optionalTypeV),
- Overload("optional_map_index_optional_value", []*Type{OptionalType(mapTypeKV), paramTypeK}, optionalTypeV)),
+ Overload("optional_map_index_value", []*Type{OptionalType(mapTypeKV), paramTypeK}, optionalTypeV)),
+ }
+ if lib.version >= 1 {
+ opts = append(opts, Macros(ReceiverMacro(optFlatMapMacro, 2, optFlatMap)))
}
+ return opts
}
// ProgramOptions implements the Library interface method.
-func (optionalLibrary) ProgramOptions() []ProgramOption {
+func (lib *optionalLib) ProgramOptions() []ProgramOption {
return []ProgramOption{
CustomDecorator(decorateOptionalOr),
}
}
+func optMap(meh MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *Error) {
+ varIdent := args[0]
+ varName := ""
+ switch varIdent.Kind() {
+ case ast.IdentKind:
+ varName = varIdent.AsIdent()
+ default:
+ return nil, meh.NewError(varIdent.ID(), "optMap() variable name must be a simple identifier")
+ }
+ mapExpr := args[1]
+ return meh.NewCall(
+ operators.Conditional,
+ meh.NewMemberCall(hasValueFunc, target),
+ meh.NewCall(optionalOfFunc,
+ meh.NewComprehension(
+ meh.NewList(),
+ unusedIterVar,
+ varName,
+ meh.NewMemberCall(valueFunc, meh.Copy(target)),
+ meh.NewLiteral(types.False),
+ meh.NewIdent(varName),
+ mapExpr,
+ ),
+ ),
+ meh.NewCall(optionalNoneFunc),
+ ), nil
+}
+
+func optFlatMap(meh MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *Error) {
+ varIdent := args[0]
+ varName := ""
+ switch varIdent.Kind() {
+ case ast.IdentKind:
+ varName = varIdent.AsIdent()
+ default:
+ return nil, meh.NewError(varIdent.ID(), "optFlatMap() variable name must be a simple identifier")
+ }
+ mapExpr := args[1]
+ return meh.NewCall(
+ operators.Conditional,
+ meh.NewMemberCall(hasValueFunc, target),
+ meh.NewComprehension(
+ meh.NewList(),
+ unusedIterVar,
+ varName,
+ meh.NewMemberCall(valueFunc, meh.Copy(target)),
+ meh.NewLiteral(types.False),
+ meh.NewIdent(varName),
+ mapExpr,
+ ),
+ meh.NewCall(optionalNoneFunc),
+ ), nil
+}
+
func enableOptionalSyntax() EnvOption {
return func(e *Env) (*Env, error) {
e.prsrOpts = append(e.prsrOpts, parser.EnableOptionalSyntax(true))
@@ -204,6 +446,12 @@ func enableOptionalSyntax() EnvOption {
}
}
+// EnableErrorOnBadPresenceTest enables error generation when a presence test or optional field
+// selection is performed on a primitive type.
+func EnableErrorOnBadPresenceTest(value bool) EnvOption {
+ return features(featureEnableErrorOnBadPresenceTest, value)
+}
+
func decorateOptionalOr(i interpreter.Interpretable) (interpreter.Interpretable, error) {
call, ok := i.(interpreter.InterpretableCall)
if !ok {
@@ -311,28 +559,16 @@ var (
timeOverloadDeclarations = []EnvOption{
Function(overloads.TimeGetHours,
MemberOverload(overloads.DurationToHours, []*Type{DurationType}, IntType,
- UnaryBinding(func(dur ref.Val) ref.Val {
- d := dur.(types.Duration)
- return types.Int(d.Hours())
- }))),
+ UnaryBinding(types.DurationGetHours))),
Function(overloads.TimeGetMinutes,
MemberOverload(overloads.DurationToMinutes, []*Type{DurationType}, IntType,
- UnaryBinding(func(dur ref.Val) ref.Val {
- d := dur.(types.Duration)
- return types.Int(d.Minutes())
- }))),
+ UnaryBinding(types.DurationGetMinutes))),
Function(overloads.TimeGetSeconds,
MemberOverload(overloads.DurationToSeconds, []*Type{DurationType}, IntType,
- UnaryBinding(func(dur ref.Val) ref.Val {
- d := dur.(types.Duration)
- return types.Int(d.Seconds())
- }))),
+ UnaryBinding(types.DurationGetSeconds))),
Function(overloads.TimeGetMilliseconds,
MemberOverload(overloads.DurationToMilliseconds, []*Type{DurationType}, IntType,
- UnaryBinding(func(dur ref.Val) ref.Val {
- d := dur.(types.Duration)
- return types.Int(d.Milliseconds())
- }))),
+ UnaryBinding(types.DurationGetMilliseconds))),
Function(overloads.TimeGetFullYear,
MemberOverload(overloads.TimestampToYear, []*Type{TimestampType}, IntType,
UnaryBinding(func(ts ref.Val) ref.Val {
diff --git a/vendor/github.com/google/cel-go/cel/macro.go b/vendor/github.com/google/cel-go/cel/macro.go
index e48c5bf..4db1fd5 100644
--- a/vendor/github.com/google/cel-go/cel/macro.go
+++ b/vendor/github.com/google/cel-go/cel/macro.go
@@ -15,7 +15,11 @@
package cel
import (
+ "fmt"
+
"github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/types"
"github.com/google/cel-go/parser"
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
@@ -27,7 +31,14 @@ import (
// a Macro should be created per arg-count or as a var arg macro.
type Macro = parser.Macro
-// MacroExpander converts a call and its associated arguments into a new CEL abstract syntax tree.
+// MacroFactory defines an expansion function which converts a call and its arguments to a cel.Expr value.
+type MacroFactory = parser.MacroExpander
+
+// MacroExprFactory assists with the creation of Expr values in a manner which is consistent
+// the internal semantics and id generation behaviors of the parser and checker libraries.
+type MacroExprFactory = parser.ExprHelper
+
+// MacroExpander converts a call and its associated arguments into a protobuf Expr representation.
//
// If the MacroExpander determines within the implementation that an expansion is not needed it may return
// a nil Expr value to indicate a non-match. However, if an expansion is to be performed, but the arguments
@@ -37,48 +48,197 @@ type Macro = parser.Macro
// and produces as output an Expr ast node.
//
// Note: when the Macro.IsReceiverStyle() method returns true, the target argument will be nil.
-type MacroExpander = parser.MacroExpander
+type MacroExpander func(eh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *Error)
// MacroExprHelper exposes helper methods for creating new expressions within a CEL abstract syntax tree.
-type MacroExprHelper = parser.ExprHelper
+// ExprHelper assists with the manipulation of proto-based Expr values in a manner which is
+// consistent with the source position and expression id generation code leveraged by both
+// the parser and type-checker.
+type MacroExprHelper interface {
+ // Copy the input expression with a brand new set of identifiers.
+ Copy(*exprpb.Expr) *exprpb.Expr
+
+ // LiteralBool creates an Expr value for a bool literal.
+ LiteralBool(value bool) *exprpb.Expr
+
+ // LiteralBytes creates an Expr value for a byte literal.
+ LiteralBytes(value []byte) *exprpb.Expr
+
+ // LiteralDouble creates an Expr value for double literal.
+ LiteralDouble(value float64) *exprpb.Expr
+
+ // LiteralInt creates an Expr value for an int literal.
+ LiteralInt(value int64) *exprpb.Expr
+
+ // LiteralString creates am Expr value for a string literal.
+ LiteralString(value string) *exprpb.Expr
+
+ // LiteralUint creates an Expr value for a uint literal.
+ LiteralUint(value uint64) *exprpb.Expr
+
+ // NewList creates a CreateList instruction where the list is comprised of the optional set
+ // of elements provided as arguments.
+ NewList(elems ...*exprpb.Expr) *exprpb.Expr
+
+ // NewMap creates a CreateStruct instruction for a map where the map is comprised of the
+ // optional set of key, value entries.
+ NewMap(entries ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr
+
+ // NewMapEntry creates a Map Entry for the key, value pair.
+ NewMapEntry(key *exprpb.Expr, val *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry
+
+ // NewObject creates a CreateStruct instruction for an object with a given type name and
+ // optional set of field initializers.
+ NewObject(typeName string, fieldInits ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr
+
+ // NewObjectFieldInit creates a new Object field initializer from the field name and value.
+ NewObjectFieldInit(field string, init *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry
+
+ // Fold creates a fold comprehension instruction.
+ //
+ // - iterVar is the iteration variable name.
+ // - iterRange represents the expression that resolves to a list or map where the elements or
+ // keys (respectively) will be iterated over.
+ // - accuVar is the accumulation variable name, typically parser.AccumulatorName.
+ // - accuInit is the initial expression whose value will be set for the accuVar prior to
+ // folding.
+ // - condition is the expression to test to determine whether to continue folding.
+ // - step is the expression to evaluation at the conclusion of a single fold iteration.
+ // - result is the computation to evaluate at the conclusion of the fold.
+ //
+ // The accuVar should not shadow variable names that you would like to reference within the
+ // environment in the step and condition expressions. Presently, the name __result__ is commonly
+ // used by built-in macros but this may change in the future.
+ Fold(iterVar string,
+ iterRange *exprpb.Expr,
+ accuVar string,
+ accuInit *exprpb.Expr,
+ condition *exprpb.Expr,
+ step *exprpb.Expr,
+ result *exprpb.Expr) *exprpb.Expr
+
+ // Ident creates an identifier Expr value.
+ Ident(name string) *exprpb.Expr
+
+ // AccuIdent returns an accumulator identifier for use with comprehension results.
+ AccuIdent() *exprpb.Expr
+
+ // GlobalCall creates a function call Expr value for a global (free) function.
+ GlobalCall(function string, args ...*exprpb.Expr) *exprpb.Expr
+
+ // ReceiverCall creates a function call Expr value for a receiver-style function.
+ ReceiverCall(function string, target *exprpb.Expr, args ...*exprpb.Expr) *exprpb.Expr
+
+ // PresenceTest creates a Select TestOnly Expr value for modelling has() semantics.
+ PresenceTest(operand *exprpb.Expr, field string) *exprpb.Expr
+
+ // Select create a field traversal Expr value.
+ Select(operand *exprpb.Expr, field string) *exprpb.Expr
+
+ // OffsetLocation returns the Location of the expression identifier.
+ OffsetLocation(exprID int64) common.Location
+
+ // NewError associates an error message with a given expression id.
+ NewError(exprID int64, message string) *Error
+}
+
+// GlobalMacro creates a Macro for a global function with the specified arg count.
+func GlobalMacro(function string, argCount int, factory MacroFactory) Macro {
+ return parser.NewGlobalMacro(function, argCount, factory)
+}
+
+// ReceiverMacro creates a Macro for a receiver function matching the specified arg count.
+func ReceiverMacro(function string, argCount int, factory MacroFactory) Macro {
+ return parser.NewReceiverMacro(function, argCount, factory)
+}
+
+// GlobalVarArgMacro creates a Macro for a global function with a variable arg count.
+func GlobalVarArgMacro(function string, factory MacroFactory) Macro {
+ return parser.NewGlobalVarArgMacro(function, factory)
+}
+
+// ReceiverVarArgMacro creates a Macro for a receiver function matching a variable arg count.
+func ReceiverVarArgMacro(function string, factory MacroFactory) Macro {
+ return parser.NewReceiverVarArgMacro(function, factory)
+}
// NewGlobalMacro creates a Macro for a global function with the specified arg count.
+//
+// Deprecated: use GlobalMacro
func NewGlobalMacro(function string, argCount int, expander MacroExpander) Macro {
- return parser.NewGlobalMacro(function, argCount, expander)
+ expand := adaptingExpander{expander}
+ return parser.NewGlobalMacro(function, argCount, expand.Expander)
}
// NewReceiverMacro creates a Macro for a receiver function matching the specified arg count.
+//
+// Deprecated: use ReceiverMacro
func NewReceiverMacro(function string, argCount int, expander MacroExpander) Macro {
- return parser.NewReceiverMacro(function, argCount, expander)
+ expand := adaptingExpander{expander}
+ return parser.NewReceiverMacro(function, argCount, expand.Expander)
}
// NewGlobalVarArgMacro creates a Macro for a global function with a variable arg count.
+//
+// Deprecated: use GlobalVarArgMacro
func NewGlobalVarArgMacro(function string, expander MacroExpander) Macro {
- return parser.NewGlobalVarArgMacro(function, expander)
+ expand := adaptingExpander{expander}
+ return parser.NewGlobalVarArgMacro(function, expand.Expander)
}
// NewReceiverVarArgMacro creates a Macro for a receiver function matching a variable arg count.
+//
+// Deprecated: use ReceiverVarArgMacro
func NewReceiverVarArgMacro(function string, expander MacroExpander) Macro {
- return parser.NewReceiverVarArgMacro(function, expander)
+ expand := adaptingExpander{expander}
+ return parser.NewReceiverVarArgMacro(function, expand.Expander)
}
// HasMacroExpander expands the input call arguments into a presence test, e.g. has(<operand>.field)
-func HasMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
- return parser.MakeHas(meh, target, args)
+func HasMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *Error) {
+ ph, err := toParserHelper(meh)
+ if err != nil {
+ return nil, err
+ }
+ arg, err := adaptToExpr(args[0])
+ if err != nil {
+ return nil, err
+ }
+ if arg.Kind() == ast.SelectKind {
+ s := arg.AsSelect()
+ return adaptToProto(ph.NewPresenceTest(s.Operand(), s.FieldName()))
+ }
+ return nil, ph.NewError(arg.ID(), "invalid argument to has() macro")
}
// ExistsMacroExpander expands the input call arguments into a comprehension that returns true if any of the
// elements in the range match the predicate expressions:
// <iterRange>.exists(<iterVar>, <predicate>)
-func ExistsMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
- return parser.MakeExists(meh, target, args)
+func ExistsMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *Error) {
+ ph, err := toParserHelper(meh)
+ if err != nil {
+ return nil, err
+ }
+ out, err := parser.MakeExists(ph, mustAdaptToExpr(target), mustAdaptToExprs(args))
+ if err != nil {
+ return nil, err
+ }
+ return adaptToProto(out)
}
// ExistsOneMacroExpander expands the input call arguments into a comprehension that returns true if exactly
// one of the elements in the range match the predicate expressions:
// <iterRange>.exists_one(<iterVar>, <predicate>)
-func ExistsOneMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
- return parser.MakeExistsOne(meh, target, args)
+func ExistsOneMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *Error) {
+ ph, err := toParserHelper(meh)
+ if err != nil {
+ return nil, err
+ }
+ out, err := parser.MakeExistsOne(ph, mustAdaptToExpr(target), mustAdaptToExprs(args))
+ if err != nil {
+ return nil, err
+ }
+ return adaptToProto(out)
}
// MapMacroExpander expands the input call arguments into a comprehension that transforms each element in the
@@ -91,15 +251,31 @@ func ExistsOneMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*ex
//
// In the second form only iterVar values which return true when provided to the predicate expression
// are transformed.
-func MapMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
- return parser.MakeMap(meh, target, args)
+func MapMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *Error) {
+ ph, err := toParserHelper(meh)
+ if err != nil {
+ return nil, err
+ }
+ out, err := parser.MakeMap(ph, mustAdaptToExpr(target), mustAdaptToExprs(args))
+ if err != nil {
+ return nil, err
+ }
+ return adaptToProto(out)
}
// FilterMacroExpander expands the input call arguments into a comprehension which produces a list which contains
// only elements which match the provided predicate expression:
// <iterRange>.filter(<iterVar>, <predicate>)
-func FilterMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
- return parser.MakeFilter(meh, target, args)
+func FilterMacroExpander(meh MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *Error) {
+ ph, err := toParserHelper(meh)
+ if err != nil {
+ return nil, err
+ }
+ out, err := parser.MakeFilter(ph, mustAdaptToExpr(target), mustAdaptToExprs(args))
+ if err != nil {
+ return nil, err
+ }
+ return adaptToProto(out)
}
var (
@@ -143,3 +319,258 @@ var (
// NoMacros provides an alias to an empty list of macros
NoMacros = []Macro{}
)
+
+type adaptingExpander struct {
+ legacyExpander MacroExpander
+}
+
+func (adapt *adaptingExpander) Expander(eh parser.ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
+ var legacyTarget *exprpb.Expr = nil
+ var err *Error = nil
+ if target != nil {
+ legacyTarget, err = adaptToProto(target)
+ if err != nil {
+ return nil, err
+ }
+ }
+ legacyArgs := make([]*exprpb.Expr, len(args))
+ for i, arg := range args {
+ legacyArgs[i], err = adaptToProto(arg)
+ if err != nil {
+ return nil, err
+ }
+ }
+ ah := &adaptingHelper{modernHelper: eh}
+ legacyExpr, err := adapt.legacyExpander(ah, legacyTarget, legacyArgs)
+ if err != nil {
+ return nil, err
+ }
+ ex, err := adaptToExpr(legacyExpr)
+ if err != nil {
+ return nil, err
+ }
+ return ex, nil
+}
+
+func wrapErr(id int64, message string, err error) *common.Error {
+ return &common.Error{
+ Location: common.NoLocation,
+ Message: fmt.Sprintf("%s: %v", message, err),
+ ExprID: id,
+ }
+}
+
+type adaptingHelper struct {
+ modernHelper parser.ExprHelper
+}
+
+// Copy the input expression with a brand new set of identifiers.
+func (ah *adaptingHelper) Copy(e *exprpb.Expr) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.Copy(mustAdaptToExpr(e)))
+}
+
+// LiteralBool creates an Expr value for a bool literal.
+func (ah *adaptingHelper) LiteralBool(value bool) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewLiteral(types.Bool(value)))
+}
+
+// LiteralBytes creates an Expr value for a byte literal.
+func (ah *adaptingHelper) LiteralBytes(value []byte) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewLiteral(types.Bytes(value)))
+}
+
+// LiteralDouble creates an Expr value for double literal.
+func (ah *adaptingHelper) LiteralDouble(value float64) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewLiteral(types.Double(value)))
+}
+
+// LiteralInt creates an Expr value for an int literal.
+func (ah *adaptingHelper) LiteralInt(value int64) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewLiteral(types.Int(value)))
+}
+
+// LiteralString creates am Expr value for a string literal.
+func (ah *adaptingHelper) LiteralString(value string) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewLiteral(types.String(value)))
+}
+
+// LiteralUint creates an Expr value for a uint literal.
+func (ah *adaptingHelper) LiteralUint(value uint64) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewLiteral(types.Uint(value)))
+}
+
+// NewList creates a CreateList instruction where the list is comprised of the optional set
+// of elements provided as arguments.
+func (ah *adaptingHelper) NewList(elems ...*exprpb.Expr) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewList(mustAdaptToExprs(elems)...))
+}
+
+// NewMap creates a CreateStruct instruction for a map where the map is comprised of the
+// optional set of key, value entries.
+func (ah *adaptingHelper) NewMap(entries ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr {
+ adaptedEntries := make([]ast.EntryExpr, len(entries))
+ for i, e := range entries {
+ adaptedEntries[i] = mustAdaptToEntryExpr(e)
+ }
+ return mustAdaptToProto(ah.modernHelper.NewMap(adaptedEntries...))
+}
+
+// NewMapEntry creates a Map Entry for the key, value pair.
+func (ah *adaptingHelper) NewMapEntry(key *exprpb.Expr, val *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry {
+ return mustAdaptToProtoEntry(
+ ah.modernHelper.NewMapEntry(mustAdaptToExpr(key), mustAdaptToExpr(val), optional))
+}
+
+// NewObject creates a CreateStruct instruction for an object with a given type name and
+// optional set of field initializers.
+func (ah *adaptingHelper) NewObject(typeName string, fieldInits ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr {
+ adaptedEntries := make([]ast.EntryExpr, len(fieldInits))
+ for i, e := range fieldInits {
+ adaptedEntries[i] = mustAdaptToEntryExpr(e)
+ }
+ return mustAdaptToProto(ah.modernHelper.NewStruct(typeName, adaptedEntries...))
+}
+
+// NewObjectFieldInit creates a new Object field initializer from the field name and value.
+func (ah *adaptingHelper) NewObjectFieldInit(field string, init *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry {
+ return mustAdaptToProtoEntry(
+ ah.modernHelper.NewStructField(field, mustAdaptToExpr(init), optional))
+}
+
+// Fold creates a fold comprehension instruction.
+//
+// - iterVar is the iteration variable name.
+// - iterRange represents the expression that resolves to a list or map where the elements or
+// keys (respectively) will be iterated over.
+// - accuVar is the accumulation variable name, typically parser.AccumulatorName.
+// - accuInit is the initial expression whose value will be set for the accuVar prior to
+// folding.
+// - condition is the expression to test to determine whether to continue folding.
+// - step is the expression to evaluation at the conclusion of a single fold iteration.
+// - result is the computation to evaluate at the conclusion of the fold.
+//
+// The accuVar should not shadow variable names that you would like to reference within the
+// environment in the step and condition expressions. Presently, the name __result__ is commonly
+// used by built-in macros but this may change in the future.
+func (ah *adaptingHelper) Fold(iterVar string,
+ iterRange *exprpb.Expr,
+ accuVar string,
+ accuInit *exprpb.Expr,
+ condition *exprpb.Expr,
+ step *exprpb.Expr,
+ result *exprpb.Expr) *exprpb.Expr {
+ return mustAdaptToProto(
+ ah.modernHelper.NewComprehension(
+ mustAdaptToExpr(iterRange),
+ iterVar,
+ accuVar,
+ mustAdaptToExpr(accuInit),
+ mustAdaptToExpr(condition),
+ mustAdaptToExpr(step),
+ mustAdaptToExpr(result),
+ ),
+ )
+}
+
+// Ident creates an identifier Expr value.
+func (ah *adaptingHelper) Ident(name string) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewIdent(name))
+}
+
+// AccuIdent returns an accumulator identifier for use with comprehension results.
+func (ah *adaptingHelper) AccuIdent() *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewAccuIdent())
+}
+
+// GlobalCall creates a function call Expr value for a global (free) function.
+func (ah *adaptingHelper) GlobalCall(function string, args ...*exprpb.Expr) *exprpb.Expr {
+ return mustAdaptToProto(ah.modernHelper.NewCall(function, mustAdaptToExprs(args)...))
+}
+
+// ReceiverCall creates a function call Expr value for a receiver-style function.
+func (ah *adaptingHelper) ReceiverCall(function string, target *exprpb.Expr, args ...*exprpb.Expr) *exprpb.Expr {
+ return mustAdaptToProto(
+ ah.modernHelper.NewMemberCall(function, mustAdaptToExpr(target), mustAdaptToExprs(args)...))
+}
+
+// PresenceTest creates a Select TestOnly Expr value for modelling has() semantics.
+func (ah *adaptingHelper) PresenceTest(operand *exprpb.Expr, field string) *exprpb.Expr {
+ op := mustAdaptToExpr(operand)
+ return mustAdaptToProto(ah.modernHelper.NewPresenceTest(op, field))
+}
+
+// Select create a field traversal Expr value.
+func (ah *adaptingHelper) Select(operand *exprpb.Expr, field string) *exprpb.Expr {
+ op := mustAdaptToExpr(operand)
+ return mustAdaptToProto(ah.modernHelper.NewSelect(op, field))
+}
+
+// OffsetLocation returns the Location of the expression identifier.
+func (ah *adaptingHelper) OffsetLocation(exprID int64) common.Location {
+ return ah.modernHelper.OffsetLocation(exprID)
+}
+
+// NewError associates an error message with a given expression id.
+func (ah *adaptingHelper) NewError(exprID int64, message string) *Error {
+ return ah.modernHelper.NewError(exprID, message)
+}
+
+func mustAdaptToExprs(exprs []*exprpb.Expr) []ast.Expr {
+ adapted := make([]ast.Expr, len(exprs))
+ for i, e := range exprs {
+ adapted[i] = mustAdaptToExpr(e)
+ }
+ return adapted
+}
+
+func mustAdaptToExpr(e *exprpb.Expr) ast.Expr {
+ out, _ := adaptToExpr(e)
+ return out
+}
+
+func adaptToExpr(e *exprpb.Expr) (ast.Expr, *Error) {
+ if e == nil {
+ return nil, nil
+ }
+ out, err := ast.ProtoToExpr(e)
+ if err != nil {
+ return nil, wrapErr(e.GetId(), "proto conversion failure", err)
+ }
+ return out, nil
+}
+
+func mustAdaptToEntryExpr(e *exprpb.Expr_CreateStruct_Entry) ast.EntryExpr {
+ out, _ := ast.ProtoToEntryExpr(e)
+ return out
+}
+
+func mustAdaptToProto(e ast.Expr) *exprpb.Expr {
+ out, _ := adaptToProto(e)
+ return out
+}
+
+func adaptToProto(e ast.Expr) (*exprpb.Expr, *Error) {
+ if e == nil {
+ return nil, nil
+ }
+ out, err := ast.ExprToProto(e)
+ if err != nil {
+ return nil, wrapErr(e.ID(), "expr conversion failure", err)
+ }
+ return out, nil
+}
+
+func mustAdaptToProtoEntry(e ast.EntryExpr) *exprpb.Expr_CreateStruct_Entry {
+ out, _ := ast.EntryExprToProto(e)
+ return out
+}
+
+func toParserHelper(meh MacroExprHelper) (parser.ExprHelper, *Error) {
+ ah, ok := meh.(*adaptingHelper)
+ if !ok {
+ return nil, common.NewError(0,
+ fmt.Sprintf("unsupported macro helper: %v (%T)", meh, meh),
+ common.NoLocation)
+ }
+ return ah.modernHelper, nil
+}
diff --git a/vendor/github.com/google/cel-go/cel/optimizer.go b/vendor/github.com/google/cel-go/cel/optimizer.go
new file mode 100644
index 0000000..9a2a97a
--- /dev/null
+++ b/vendor/github.com/google/cel-go/cel/optimizer.go
@@ -0,0 +1,535 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cel
+
+import (
+ "sort"
+
+ "github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+)
+
+// StaticOptimizer contains a sequence of ASTOptimizer instances which will be applied in order.
+//
+// The static optimizer normalizes expression ids and type-checking run between optimization
+// passes to ensure that the final optimized output is a valid expression with metadata consistent
+// with what would have been generated from a parsed and checked expression.
+//
+// Note: source position information is best-effort and likely wrong, but optimized expressions
+// should be suitable for calls to parser.Unparse.
+type StaticOptimizer struct {
+ optimizers []ASTOptimizer
+}
+
+// NewStaticOptimizer creates a StaticOptimizer with a sequence of ASTOptimizer's to be applied
+// to a checked expression.
+func NewStaticOptimizer(optimizers ...ASTOptimizer) *StaticOptimizer {
+ return &StaticOptimizer{
+ optimizers: optimizers,
+ }
+}
+
+// Optimize applies a sequence of optimizations to an Ast within a given environment.
+//
+// If issues are encountered, the Issues.Err() return value will be non-nil.
+func (opt *StaticOptimizer) Optimize(env *Env, a *Ast) (*Ast, *Issues) {
+ // Make a copy of the AST to be optimized.
+ optimized := ast.Copy(a.NativeRep())
+ ids := newIDGenerator(ast.MaxID(a.NativeRep()))
+
+ // Create the optimizer context, could be pooled in the future.
+ issues := NewIssues(common.NewErrors(a.Source()))
+ baseFac := ast.NewExprFactory()
+ exprFac := &optimizerExprFactory{
+ idGenerator: ids,
+ fac: baseFac,
+ sourceInfo: optimized.SourceInfo(),
+ }
+ ctx := &OptimizerContext{
+ optimizerExprFactory: exprFac,
+ Env: env,
+ Issues: issues,
+ }
+
+ // Apply the optimizations sequentially.
+ for _, o := range opt.optimizers {
+ optimized = o.Optimize(ctx, optimized)
+ if issues.Err() != nil {
+ return nil, issues
+ }
+ // Normalize expression id metadata including coordination with macro call metadata.
+ freshIDGen := newIDGenerator(0)
+ info := optimized.SourceInfo()
+ expr := optimized.Expr()
+ normalizeIDs(freshIDGen.renumberStable, expr, info)
+ cleanupMacroRefs(expr, info)
+
+ // Recheck the updated expression for any possible type-agreement or validation errors.
+ parsed := &Ast{
+ source: a.Source(),
+ impl: ast.NewAST(expr, info)}
+ checked, iss := ctx.Check(parsed)
+ if iss.Err() != nil {
+ return nil, iss
+ }
+ optimized = checked.NativeRep()
+ }
+
+ // Return the optimized result.
+ return &Ast{
+ source: a.Source(),
+ impl: optimized,
+ }, nil
+}
+
+// normalizeIDs ensures that the metadata present with an AST is reset in a manner such
+// that the ids within the expression correspond to the ids within macros.
+func normalizeIDs(idGen ast.IDGenerator, optimized ast.Expr, info *ast.SourceInfo) {
+ optimized.RenumberIDs(idGen)
+ if len(info.MacroCalls()) == 0 {
+ return
+ }
+
+ // Sort the macro ids to make sure that the renumbering of macro-specific variables
+ // is stable across normalization calls.
+ sortedMacroIDs := []int64{}
+ for id := range info.MacroCalls() {
+ sortedMacroIDs = append(sortedMacroIDs, id)
+ }
+ sort.Slice(sortedMacroIDs, func(i, j int) bool { return sortedMacroIDs[i] < sortedMacroIDs[j] })
+
+ // First, update the macro call ids themselves.
+ callIDMap := map[int64]int64{}
+ for _, id := range sortedMacroIDs {
+ callIDMap[id] = idGen(id)
+ }
+ // Then update the macro call definitions which refer to these ids, but
+ // ensure that the updates don't collide and remove macro entries which haven't
+ // been visited / updated yet.
+ type macroUpdate struct {
+ id int64
+ call ast.Expr
+ }
+ macroUpdates := []macroUpdate{}
+ for _, oldID := range sortedMacroIDs {
+ newID := callIDMap[oldID]
+ call, found := info.GetMacroCall(oldID)
+ if !found {
+ continue
+ }
+ call.RenumberIDs(idGen)
+ macroUpdates = append(macroUpdates, macroUpdate{id: newID, call: call})
+ info.ClearMacroCall(oldID)
+ }
+ for _, u := range macroUpdates {
+ info.SetMacroCall(u.id, u.call)
+ }
+}
+
+func cleanupMacroRefs(expr ast.Expr, info *ast.SourceInfo) {
+ if len(info.MacroCalls()) == 0 {
+ return
+ }
+
+ // Sanitize the macro call references once the optimized expression has been computed
+ // and the ids normalized between the expression and the macros.
+ exprRefMap := make(map[int64]struct{})
+ ast.PostOrderVisit(expr, ast.NewExprVisitor(func(e ast.Expr) {
+ if e.ID() == 0 {
+ return
+ }
+ exprRefMap[e.ID()] = struct{}{}
+ }))
+ // Update the macro call id references to ensure that macro pointers are
+ // updated consistently across macros.
+ for _, call := range info.MacroCalls() {
+ ast.PostOrderVisit(call, ast.NewExprVisitor(func(e ast.Expr) {
+ if e.ID() == 0 {
+ return
+ }
+ exprRefMap[e.ID()] = struct{}{}
+ }))
+ }
+ for id := range info.MacroCalls() {
+ if _, found := exprRefMap[id]; !found {
+ info.ClearMacroCall(id)
+ }
+ }
+}
+
+// newIDGenerator ensures that new ids are only created the first time they are encountered.
+func newIDGenerator(seed int64) *idGenerator {
+ return &idGenerator{
+ idMap: make(map[int64]int64),
+ seed: seed,
+ }
+}
+
+type idGenerator struct {
+ idMap map[int64]int64
+ seed int64
+}
+
+func (gen *idGenerator) nextID() int64 {
+ gen.seed++
+ return gen.seed
+}
+
+func (gen *idGenerator) renumberStable(id int64) int64 {
+ if id == 0 {
+ return 0
+ }
+ if newID, found := gen.idMap[id]; found {
+ return newID
+ }
+ nextID := gen.nextID()
+ gen.idMap[id] = nextID
+ return nextID
+}
+
+// OptimizerContext embeds Env and Issues instances to make it easy to type-check and evaluate
+// subexpressions and report any errors encountered along the way. The context also embeds the
+// optimizerExprFactory which can be used to generate new sub-expressions with expression ids
+// consistent with the expectations of a parsed expression.
+type OptimizerContext struct {
+ *Env
+ *optimizerExprFactory
+ *Issues
+}
+
+// ExtendEnv auguments the context's environment with the additional options.
+func (opt *OptimizerContext) ExtendEnv(opts ...EnvOption) error {
+ e, err := opt.Env.Extend(opts...)
+ if err != nil {
+ return err
+ }
+ opt.Env = e
+ return nil
+}
+
+// ASTOptimizer applies an optimization over an AST and returns the optimized result.
+type ASTOptimizer interface {
+ // Optimize optimizes a type-checked AST within an Environment and accumulates any issues.
+ Optimize(*OptimizerContext, *ast.AST) *ast.AST
+}
+
+type optimizerExprFactory struct {
+ *idGenerator
+ fac ast.ExprFactory
+ sourceInfo *ast.SourceInfo
+}
+
+// NewAST creates an AST from the current expression using the tracked source info which
+// is modified and managed by the OptimizerContext.
+func (opt *optimizerExprFactory) NewAST(expr ast.Expr) *ast.AST {
+ return ast.NewAST(expr, opt.sourceInfo)
+}
+
+// CopyAST creates a renumbered copy of `Expr` and `SourceInfo` values of the input AST, where the
+// renumbering uses the same scheme as the core optimizer logic ensuring there are no collisions
+// between copies.
+//
+// Use this method before attempting to merge the expression from AST into another.
+func (opt *optimizerExprFactory) CopyAST(a *ast.AST) (ast.Expr, *ast.SourceInfo) {
+ idGen := newIDGenerator(opt.nextID())
+ defer func() { opt.seed = idGen.nextID() }()
+ copyExpr := opt.fac.CopyExpr(a.Expr())
+ copyInfo := ast.CopySourceInfo(a.SourceInfo())
+ normalizeIDs(idGen.renumberStable, copyExpr, copyInfo)
+ return copyExpr, copyInfo
+}
+
+// CopyASTAndMetadata copies the input AST and propagates the macro metadata into the AST being
+// optimized.
+func (opt *optimizerExprFactory) CopyASTAndMetadata(a *ast.AST) ast.Expr {
+ copyExpr, copyInfo := opt.CopyAST(a)
+ for macroID, call := range copyInfo.MacroCalls() {
+ opt.SetMacroCall(macroID, call)
+ }
+ return copyExpr
+}
+
+// ClearMacroCall clears the macro at the given expression id.
+func (opt *optimizerExprFactory) ClearMacroCall(id int64) {
+ opt.sourceInfo.ClearMacroCall(id)
+}
+
+// SetMacroCall sets the macro call metadata for the given macro id within the tracked source info
+// metadata.
+func (opt *optimizerExprFactory) SetMacroCall(id int64, expr ast.Expr) {
+ opt.sourceInfo.SetMacroCall(id, expr)
+}
+
+// MacroCalls returns the map of macro calls currently in the context.
+func (opt *optimizerExprFactory) MacroCalls() map[int64]ast.Expr {
+ return opt.sourceInfo.MacroCalls()
+}
+
+// NewBindMacro creates an AST expression representing the expanded bind() macro, and a macro expression
+// representing the unexpanded call signature to be inserted into the source info macro call metadata.
+func (opt *optimizerExprFactory) NewBindMacro(macroID int64, varName string, varInit, remaining ast.Expr) (astExpr, macroExpr ast.Expr) {
+ varID := opt.nextID()
+ remainingID := opt.nextID()
+ remaining = opt.fac.CopyExpr(remaining)
+ remaining.RenumberIDs(func(id int64) int64 {
+ if id == macroID {
+ return remainingID
+ }
+ return id
+ })
+ if call, exists := opt.sourceInfo.GetMacroCall(macroID); exists {
+ opt.SetMacroCall(remainingID, opt.fac.CopyExpr(call))
+ }
+
+ astExpr = opt.fac.NewComprehension(macroID,
+ opt.fac.NewList(opt.nextID(), []ast.Expr{}, []int32{}),
+ "#unused",
+ varName,
+ opt.fac.CopyExpr(varInit),
+ opt.fac.NewLiteral(opt.nextID(), types.False),
+ opt.fac.NewIdent(varID, varName),
+ remaining)
+
+ macroExpr = opt.fac.NewMemberCall(0, "bind",
+ opt.fac.NewIdent(opt.nextID(), "cel"),
+ opt.fac.NewIdent(varID, varName),
+ opt.fac.CopyExpr(varInit),
+ opt.fac.CopyExpr(remaining))
+ opt.sanitizeMacro(macroID, macroExpr)
+ return
+}
+
+// NewCall creates a global function call invocation expression.
+//
+// Example:
+//
+// countByField(list, fieldName)
+// - function: countByField
+// - args: [list, fieldName]
+func (opt *optimizerExprFactory) NewCall(function string, args ...ast.Expr) ast.Expr {
+ return opt.fac.NewCall(opt.nextID(), function, args...)
+}
+
+// NewMemberCall creates a member function call invocation expression where 'target' is the receiver of the call.
+//
+// Example:
+//
+// list.countByField(fieldName)
+// - function: countByField
+// - target: list
+// - args: [fieldName]
+func (opt *optimizerExprFactory) NewMemberCall(function string, target ast.Expr, args ...ast.Expr) ast.Expr {
+ return opt.fac.NewMemberCall(opt.nextID(), function, target, args...)
+}
+
+// NewIdent creates a new identifier expression.
+//
+// Examples:
+//
+// - simple_var_name
+// - qualified.subpackage.var_name
+func (opt *optimizerExprFactory) NewIdent(name string) ast.Expr {
+ return opt.fac.NewIdent(opt.nextID(), name)
+}
+
+// NewLiteral creates a new literal expression value.
+//
+// The range of valid values for a literal generated during optimization is different than for expressions
+// generated via parsing / type-checking, as the ref.Val may be _any_ CEL value so long as the value can
+// be converted back to a literal-like form.
+func (opt *optimizerExprFactory) NewLiteral(value ref.Val) ast.Expr {
+ return opt.fac.NewLiteral(opt.nextID(), value)
+}
+
+// NewList creates a list expression with a set of optional indices.
+//
+// Examples:
+//
+// [a, b]
+// - elems: [a, b]
+// - optIndices: []
+//
+// [a, ?b, ?c]
+// - elems: [a, b, c]
+// - optIndices: [1, 2]
+func (opt *optimizerExprFactory) NewList(elems []ast.Expr, optIndices []int32) ast.Expr {
+ return opt.fac.NewList(opt.nextID(), elems, optIndices)
+}
+
+// NewMap creates a map from a set of entry expressions which contain a key and value expression.
+func (opt *optimizerExprFactory) NewMap(entries []ast.EntryExpr) ast.Expr {
+ return opt.fac.NewMap(opt.nextID(), entries)
+}
+
+// NewMapEntry creates a map entry with a key and value expression and a flag to indicate whether the
+// entry is optional.
+//
+// Examples:
+//
+// {a: b}
+// - key: a
+// - value: b
+// - optional: false
+//
+// {?a: ?b}
+// - key: a
+// - value: b
+// - optional: true
+func (opt *optimizerExprFactory) NewMapEntry(key, value ast.Expr, isOptional bool) ast.EntryExpr {
+ return opt.fac.NewMapEntry(opt.nextID(), key, value, isOptional)
+}
+
+// NewHasMacro generates a test-only select expression to be included within an AST and an unexpanded
+// has() macro call signature to be inserted into the source info macro call metadata.
+func (opt *optimizerExprFactory) NewHasMacro(macroID int64, s ast.Expr) (astExpr, macroExpr ast.Expr) {
+ sel := s.AsSelect()
+ astExpr = opt.fac.NewPresenceTest(macroID, sel.Operand(), sel.FieldName())
+ macroExpr = opt.fac.NewCall(0, "has",
+ opt.NewSelect(opt.fac.CopyExpr(sel.Operand()), sel.FieldName()))
+ opt.sanitizeMacro(macroID, macroExpr)
+ return
+}
+
+// NewSelect creates a select expression where a field value is selected from an operand.
+//
+// Example:
+//
+// msg.field_name
+// - operand: msg
+// - field: field_name
+func (opt *optimizerExprFactory) NewSelect(operand ast.Expr, field string) ast.Expr {
+ return opt.fac.NewSelect(opt.nextID(), operand, field)
+}
+
+// NewStruct creates a new typed struct value with an set of field initializations.
+//
+// Example:
+//
+// pkg.TypeName{field: value}
+// - typeName: pkg.TypeName
+// - fields: [{field: value}]
+func (opt *optimizerExprFactory) NewStruct(typeName string, fields []ast.EntryExpr) ast.Expr {
+ return opt.fac.NewStruct(opt.nextID(), typeName, fields)
+}
+
+// NewStructField creates a struct field initialization.
+//
+// Examples:
+//
+// {count: 3u}
+// - field: count
+// - value: 3u
+// - optional: false
+//
+// {?count: x}
+// - field: count
+// - value: x
+// - optional: true
+func (opt *optimizerExprFactory) NewStructField(field string, value ast.Expr, isOptional bool) ast.EntryExpr {
+ return opt.fac.NewStructField(opt.nextID(), field, value, isOptional)
+}
+
+// UpdateExpr updates the target expression with the updated content while preserving macro metadata.
+//
+// There are four scenarios during the update to consider:
+// 1. target is not macro, updated is not macro
+// 2. target is macro, updated is not macro
+// 3. target is macro, updated is macro
+// 4. target is not macro, updated is macro
+//
+// When the target is a macro already, it may either be updated to a new macro function
+// body if the update is also a macro, or it may be removed altogether if the update is
+// a macro.
+//
+// When the update is a macro, then the target references within other macros must be
+// updated to point to the new updated macro. Otherwise, other macros which pointed to
+// the target body must be replaced with copies of the updated expression body.
+func (opt *optimizerExprFactory) UpdateExpr(target, updated ast.Expr) {
+ // Update the expression
+ target.SetKindCase(updated)
+
+ // Early return if there's no macros present sa the source info reflects the
+ // macro set from the target and updated expressions.
+ if len(opt.sourceInfo.MacroCalls()) == 0 {
+ return
+ }
+ // Determine whether the target expression was a macro.
+ _, targetIsMacro := opt.sourceInfo.GetMacroCall(target.ID())
+
+ // Determine whether the updated expression was a macro.
+ updatedMacro, updatedIsMacro := opt.sourceInfo.GetMacroCall(updated.ID())
+
+ if updatedIsMacro {
+ // If the updated call was a macro, then updated id maps to target id,
+ // and the updated macro moves into the target id slot.
+ opt.sourceInfo.ClearMacroCall(updated.ID())
+ opt.sourceInfo.SetMacroCall(target.ID(), updatedMacro)
+ } else if targetIsMacro {
+ // Otherwise if the target expr was a macro, but is no longer, clear
+ // the macro reference.
+ opt.sourceInfo.ClearMacroCall(target.ID())
+ }
+
+ // Punch holes in the updated value where macros references exist.
+ macroExpr := opt.fac.CopyExpr(target)
+ macroRefVisitor := ast.NewExprVisitor(func(e ast.Expr) {
+ if _, exists := opt.sourceInfo.GetMacroCall(e.ID()); exists {
+ e.SetKindCase(nil)
+ }
+ })
+ ast.PostOrderVisit(macroExpr, macroRefVisitor)
+
+ // Update any references to the expression within a macro
+ macroVisitor := ast.NewExprVisitor(func(call ast.Expr) {
+ // Update the target expression to point to the macro expression which
+ // will be empty if the updated expression was a macro.
+ if call.ID() == target.ID() {
+ call.SetKindCase(opt.fac.CopyExpr(macroExpr))
+ }
+ // Update the macro call expression if it refers to the updated expression
+ // id which has since been remapped to the target id.
+ if call.ID() == updated.ID() {
+ // Either ensure the expression is a macro reference or a populated with
+ // the relevant sub-expression if the updated expr was not a macro.
+ if updatedIsMacro {
+ call.SetKindCase(nil)
+ } else {
+ call.SetKindCase(opt.fac.CopyExpr(macroExpr))
+ }
+ // Since SetKindCase does not renumber the id, ensure the references to
+ // the old 'updated' id are mapped to the target id.
+ call.RenumberIDs(func(id int64) int64 {
+ if id == updated.ID() {
+ return target.ID()
+ }
+ return id
+ })
+ }
+ })
+ for _, call := range opt.sourceInfo.MacroCalls() {
+ ast.PostOrderVisit(call, macroVisitor)
+ }
+}
+
+func (opt *optimizerExprFactory) sanitizeMacro(macroID int64, macroExpr ast.Expr) {
+ macroRefVisitor := ast.NewExprVisitor(func(e ast.Expr) {
+ if _, exists := opt.sourceInfo.GetMacroCall(e.ID()); exists && e.ID() != macroID {
+ e.SetKindCase(nil)
+ }
+ })
+ ast.PostOrderVisit(macroExpr, macroRefVisitor)
+}
diff --git a/vendor/github.com/google/cel-go/cel/options.go b/vendor/github.com/google/cel-go/cel/options.go
index 63321b5..69c6942 100644
--- a/vendor/github.com/google/cel-go/cel/options.go
+++ b/vendor/github.com/google/cel-go/cel/options.go
@@ -23,12 +23,13 @@ import (
"google.golang.org/protobuf/reflect/protoregistry"
"google.golang.org/protobuf/types/dynamicpb"
- "github.com/google/cel-go/checker/decls"
+ "github.com/google/cel-go/checker"
"github.com/google/cel-go/common/containers"
+ "github.com/google/cel-go/common/functions"
+ "github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/pb"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/interpreter"
- "github.com/google/cel-go/interpreter/functions"
"github.com/google/cel-go/parser"
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
@@ -41,13 +42,6 @@ import (
const (
_ = iota
- // Disallow heterogeneous aggregate (list, map) literals.
- // Note, it is still possible to have heterogeneous aggregates when
- // provided as variables to the expression, as well as via conversion
- // of well-known dynamic types, or with unchecked expressions.
- // Affects checking. Provides a subset of standard behavior.
- featureDisableDynamicAggregateLiterals
-
// Enable the tracking of function call expressions replaced by macros.
featureEnableMacroCallTracking
@@ -63,9 +57,14 @@ const (
// is not already in UTC.
featureDefaultUTCTimeZone
- // Enable the use of optional types in the syntax, type-system, type-checking,
- // and runtime.
- featureOptionalTypes
+ // Enable the serialization of logical operator ASTs as variadic calls, thus
+ // compressing the logic graph to a single call when multiple like-operator
+ // expressions occur: e.g. a && b && c && d -> call(_&&_, [a, b, c, d])
+ featureVariadicLogicalASTs
+
+ // Enable error generation when a presence test or optional field selection is
+ // performed on a primitive type.
+ featureEnableErrorOnBadPresenceTest
)
// EnvOption is a functional interface for configuring the environment.
@@ -82,23 +81,26 @@ func ClearMacros() EnvOption {
}
}
-// CustomTypeAdapter swaps the default ref.TypeAdapter implementation with a custom one.
+// CustomTypeAdapter swaps the default types.Adapter implementation with a custom one.
//
// Note: This option must be specified before the Types and TypeDescs options when used together.
-func CustomTypeAdapter(adapter ref.TypeAdapter) EnvOption {
+func CustomTypeAdapter(adapter types.Adapter) EnvOption {
return func(e *Env) (*Env, error) {
e.adapter = adapter
return e, nil
}
}
-// CustomTypeProvider swaps the default ref.TypeProvider implementation with a custom one.
+// CustomTypeProvider replaces the types.Provider implementation with a custom one.
+//
+// The `provider` variable type may either be types.Provider or ref.TypeProvider (deprecated)
//
// Note: This option must be specified before the Types and TypeDescs options when used together.
-func CustomTypeProvider(provider ref.TypeProvider) EnvOption {
+func CustomTypeProvider(provider any) EnvOption {
return func(e *Env) (*Env, error) {
- e.provider = provider
- return e, nil
+ var err error
+ e.provider, err = maybeInteropProvider(provider)
+ return e, err
}
}
@@ -108,8 +110,28 @@ func CustomTypeProvider(provider ref.TypeProvider) EnvOption {
// for the environment. The NewEnv call builds on top of the standard CEL declarations. For a
// purely custom set of declarations use NewCustomEnv.
func Declarations(decls ...*exprpb.Decl) EnvOption {
+ declOpts := []EnvOption{}
+ var err error
+ var opt EnvOption
+ // Convert the declarations to `EnvOption` values ahead of time.
+ // Surface any errors in conversion when the options are applied.
+ for _, d := range decls {
+ opt, err = ExprDeclToDeclaration(d)
+ if err != nil {
+ break
+ }
+ declOpts = append(declOpts, opt)
+ }
return func(e *Env) (*Env, error) {
- e.declarations = append(e.declarations, decls...)
+ if err != nil {
+ return nil, err
+ }
+ for _, o := range declOpts {
+ e, err = o(e)
+ if err != nil {
+ return nil, err
+ }
+ }
return e, nil
}
}
@@ -126,14 +148,25 @@ func EagerlyValidateDeclarations(enabled bool) EnvOption {
return features(featureEagerlyValidateDeclarations, enabled)
}
-// HomogeneousAggregateLiterals option ensures that list and map literal entry types must agree
-// during type-checking.
+// HomogeneousAggregateLiterals disables mixed type list and map literal values.
//
// Note, it is still possible to have heterogeneous aggregates when provided as variables to the
// expression, as well as via conversion of well-known dynamic types, or with unchecked
// expressions.
func HomogeneousAggregateLiterals() EnvOption {
- return features(featureDisableDynamicAggregateLiterals, true)
+ return ASTValidators(ValidateHomogeneousAggregateLiterals())
+}
+
+// variadicLogicalOperatorASTs flatten like-operator chained logical expressions into a single
+// variadic call with N-terms. This behavior is useful when serializing to a protocol buffer as
+// it will reduce the number of recursive calls needed to deserialize the AST later.
+//
+// For example, given the following expression the call graph will be rendered accordingly:
+//
+// expression: a && b && c && (d || e)
+// ast: call(_&&_, [a, b, c, call(_||_, [d, e])])
+func variadicLogicalOperatorASTs() EnvOption {
+ return features(featureVariadicLogicalASTs, true)
}
// Macros option extends the macro set configured in the environment.
@@ -214,6 +247,13 @@ func Abbrevs(qualifiedNames ...string) EnvOption {
}
}
+// customTypeRegistry is an internal-only interface containing the minimum methods required to support
+// custom types. It is a subset of methods from ref.TypeRegistry.
+type customTypeRegistry interface {
+ RegisterDescriptor(protoreflect.FileDescriptor) error
+ RegisterType(...ref.Type) error
+}
+
// Types adds one or more type declarations to the environment, allowing for construction of
// type-literals whose definitions are included in the common expression built-in set.
//
@@ -226,7 +266,7 @@ func Abbrevs(qualifiedNames ...string) EnvOption {
// Note: This option must be specified after the CustomTypeProvider option when used together.
func Types(addTypes ...any) EnvOption {
return func(e *Env) (*Env, error) {
- reg, isReg := e.provider.(ref.TypeRegistry)
+ reg, isReg := e.provider.(customTypeRegistry)
if !isReg {
return nil, fmt.Errorf("custom types not supported by provider: %T", e.provider)
}
@@ -263,7 +303,7 @@ func Types(addTypes ...any) EnvOption {
// extension or by re-using the same EnvOption with another NewEnv() call.
func TypeDescs(descs ...any) EnvOption {
return func(e *Env) (*Env, error) {
- reg, isReg := e.provider.(ref.TypeRegistry)
+ reg, isReg := e.provider.(customTypeRegistry)
if !isReg {
return nil, fmt.Errorf("custom types not supported by provider: %T", e.provider)
}
@@ -311,7 +351,7 @@ func TypeDescs(descs ...any) EnvOption {
}
}
-func registerFileSet(reg ref.TypeRegistry, fileSet *descpb.FileDescriptorSet) error {
+func registerFileSet(reg customTypeRegistry, fileSet *descpb.FileDescriptorSet) error {
files, err := protodesc.NewFiles(fileSet)
if err != nil {
return fmt.Errorf("protodesc.NewFiles(%v) failed: %v", fileSet, err)
@@ -319,7 +359,7 @@ func registerFileSet(reg ref.TypeRegistry, fileSet *descpb.FileDescriptorSet) er
return registerFiles(reg, files)
}
-func registerFiles(reg ref.TypeRegistry, files *protoregistry.Files) error {
+func registerFiles(reg customTypeRegistry, files *protoregistry.Files) error {
var err error
files.RangeFiles(func(fd protoreflect.FileDescriptor) bool {
err = reg.RegisterDescriptor(fd)
@@ -414,6 +454,8 @@ const (
OptTrackCost EvalOption = 1 << iota
// OptCheckStringFormat enables compile-time checking of string.format calls for syntax/cardinality.
+ //
+ // Deprecated: use ext.StringsValidateFormatCalls() as this option is now a no-op.
OptCheckStringFormat EvalOption = 1 << iota
)
@@ -436,6 +478,24 @@ func InterruptCheckFrequency(checkFrequency uint) ProgramOption {
}
}
+// CostEstimatorOptions configure type-check time options for estimating expression cost.
+func CostEstimatorOptions(costOpts ...checker.CostOption) EnvOption {
+ return func(e *Env) (*Env, error) {
+ e.costOptions = append(e.costOptions, costOpts...)
+ return e, nil
+ }
+}
+
+// CostTrackerOptions configures a set of options for cost-tracking.
+//
+// Note, CostTrackerOptions is a no-op unless CostTracking is also enabled.
+func CostTrackerOptions(costOpts ...interpreter.CostTrackerOption) ProgramOption {
+ return func(p *prog) (*prog, error) {
+ p.costOptions = append(p.costOptions, costOpts...)
+ return p, nil
+ }
+}
+
// CostTracking enables cost tracking and registers a ActualCostEstimator that can optionally provide a runtime cost estimate for any function calls.
func CostTracking(costEstimator interpreter.ActualCostEstimator) ProgramOption {
return func(p *prog) (*prog, error) {
@@ -457,25 +517,21 @@ func CostLimit(costLimit uint64) ProgramOption {
}
}
-func fieldToCELType(field protoreflect.FieldDescriptor) (*exprpb.Type, error) {
+func fieldToCELType(field protoreflect.FieldDescriptor) (*Type, error) {
if field.Kind() == protoreflect.MessageKind || field.Kind() == protoreflect.GroupKind {
msgName := (string)(field.Message().FullName())
- wellKnownType, found := pb.CheckedWellKnowns[msgName]
- if found {
- return wellKnownType, nil
- }
- return decls.NewObjectType(msgName), nil
+ return ObjectType(msgName), nil
}
- if primitiveType, found := pb.CheckedPrimitives[field.Kind()]; found {
+ if primitiveType, found := types.ProtoCELPrimitives[field.Kind()]; found {
return primitiveType, nil
}
if field.Kind() == protoreflect.EnumKind {
- return decls.Int, nil
+ return IntType, nil
}
return nil, fmt.Errorf("field %s type %s not implemented", field.FullName(), field.Kind().String())
}
-func fieldToDecl(field protoreflect.FieldDescriptor) (*exprpb.Decl, error) {
+func fieldToVariable(field protoreflect.FieldDescriptor) (EnvOption, error) {
name := string(field.Name())
if field.IsMap() {
mapKey := field.MapKey()
@@ -488,20 +544,20 @@ func fieldToDecl(field protoreflect.FieldDescriptor) (*exprpb.Decl, error) {
if err != nil {
return nil, err
}
- return decls.NewVar(name, decls.NewMapType(keyType, valueType)), nil
+ return Variable(name, MapType(keyType, valueType)), nil
}
if field.IsList() {
elemType, err := fieldToCELType(field)
if err != nil {
return nil, err
}
- return decls.NewVar(name, decls.NewListType(elemType)), nil
+ return Variable(name, ListType(elemType)), nil
}
celType, err := fieldToCELType(field)
if err != nil {
return nil, err
}
- return decls.NewVar(name, celType), nil
+ return Variable(name, celType), nil
}
// DeclareContextProto returns an option to extend CEL environment with declarations from the given context proto.
@@ -509,23 +565,51 @@ func fieldToDecl(field protoreflect.FieldDescriptor) (*exprpb.Decl, error) {
// https://github.com/google/cel-spec/blob/master/doc/langdef.md#evaluation-environment
func DeclareContextProto(descriptor protoreflect.MessageDescriptor) EnvOption {
return func(e *Env) (*Env, error) {
- var decls []*exprpb.Decl
fields := descriptor.Fields()
for i := 0; i < fields.Len(); i++ {
field := fields.Get(i)
- decl, err := fieldToDecl(field)
+ variable, err := fieldToVariable(field)
+ if err != nil {
+ return nil, err
+ }
+ e, err = variable(e)
if err != nil {
return nil, err
}
- decls = append(decls, decl)
}
- var err error
- e, err = Declarations(decls...)(e)
+ return Types(dynamicpb.NewMessage(descriptor))(e)
+ }
+}
+
+// ContextProtoVars uses the fields of the input proto.Messages as top-level variables within an Activation.
+//
+// Consider using with `DeclareContextProto` to simplify variable type declarations and publishing when using
+// protocol buffers.
+func ContextProtoVars(ctx proto.Message) (interpreter.Activation, error) {
+ if ctx == nil || !ctx.ProtoReflect().IsValid() {
+ return interpreter.EmptyActivation(), nil
+ }
+ reg, err := types.NewRegistry(ctx)
+ if err != nil {
+ return nil, err
+ }
+ pbRef := ctx.ProtoReflect()
+ typeName := string(pbRef.Descriptor().FullName())
+ fields := pbRef.Descriptor().Fields()
+ vars := make(map[string]any, fields.Len())
+ for i := 0; i < fields.Len(); i++ {
+ field := fields.Get(i)
+ sft, found := reg.FindStructFieldType(typeName, field.TextName())
+ if !found {
+ return nil, fmt.Errorf("no such field: %s", field.TextName())
+ }
+ fieldVal, err := sft.GetFrom(ctx)
if err != nil {
return nil, err
}
- return Types(dynamicpb.NewMessage(descriptor))(e)
+ vars[field.TextName()] = fieldVal
}
+ return interpreter.NewActivation(vars)
}
// EnableMacroCallTracking ensures that call expressions which are replaced by macros
@@ -545,13 +629,6 @@ func DefaultUTCTimeZone(enabled bool) EnvOption {
return features(featureDefaultUTCTimeZone, enabled)
}
-// OptionalTypes enable support for optional syntax and types in CEL. The optional value type makes
-// it possible to express whether variables have been provided, whether a result has been computed,
-// and in the future whether an object field path, map key value, or list index has a value.
-func OptionalTypes() EnvOption {
- return Lib(optionalLibrary{})
-}
-
// features sets the given feature flags. See list of Feature constants above.
func features(flag int, enabled bool) EnvOption {
return func(e *Env) (*Env, error) {
@@ -568,3 +645,23 @@ func ParserRecursionLimit(limit int) EnvOption {
return e, nil
}
}
+
+// ParserExpressionSizeLimit adjusts the number of code points the expression parser is allowed to parse.
+// Defaults defined in the parser package.
+func ParserExpressionSizeLimit(limit int) EnvOption {
+ return func(e *Env) (*Env, error) {
+ e.prsrOpts = append(e.prsrOpts, parser.ExpressionSizeCodePointLimit(limit))
+ return e, nil
+ }
+}
+
+func maybeInteropProvider(provider any) (types.Provider, error) {
+ switch p := provider.(type) {
+ case types.Provider:
+ return p, nil
+ case ref.TypeProvider:
+ return &interopCELTypeProvider{TypeProvider: p}, nil
+ default:
+ return nil, fmt.Errorf("unsupported type provider: %T", provider)
+ }
+}
diff --git a/vendor/github.com/google/cel-go/cel/program.go b/vendor/github.com/google/cel-go/cel/program.go
index a630f5b..49bd537 100644
--- a/vendor/github.com/google/cel-go/cel/program.go
+++ b/vendor/github.com/google/cel-go/cel/program.go
@@ -19,11 +19,10 @@ import (
"fmt"
"sync"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/interpreter"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
// Program is an evaluable view of an Ast.
@@ -62,6 +61,9 @@ func NoVars() interpreter.Activation {
// PartialVars returns a PartialActivation which contains variables and a set of AttributePattern
// values that indicate variables or parts of variables whose value are not yet known.
//
+// This method relies on manually configured sets of missing attribute patterns. For a method which
+// infers the missing variables from the input and the configured environment, use Env.PartialVars().
+//
// The `vars` value may either be an interpreter.Activation or any valid input to the
// interpreter.NewActivation call.
func PartialVars(vars any,
@@ -98,13 +100,16 @@ type EvalDetails struct {
// State of the evaluation, non-nil if the OptTrackState or OptExhaustiveEval is specified
// within EvalOptions.
func (ed *EvalDetails) State() interpreter.EvalState {
+ if ed == nil {
+ return interpreter.NewEvalState()
+ }
return ed.state
}
// ActualCost returns the tracked cost through the course of execution when `CostTracking` is enabled.
// Otherwise, returns nil if the cost was not enabled.
func (ed *EvalDetails) ActualCost() *uint64 {
- if ed.costTracker == nil {
+ if ed == nil || ed.costTracker == nil {
return nil
}
cost := ed.costTracker.ActualCost()
@@ -128,10 +133,14 @@ type prog struct {
// Interpretable configured from an Ast and aggregate decorator set based on program options.
interpretable interpreter.Interpretable
callCostEstimator interpreter.ActualCostEstimator
+ costOptions []interpreter.CostTrackerOption
costLimit *uint64
}
func (p *prog) clone() *prog {
+ costOptsCopy := make([]interpreter.CostTrackerOption, len(p.costOptions))
+ copy(costOptsCopy, p.costOptions)
+
return &prog{
Env: p.Env,
evalOpts: p.evalOpts,
@@ -146,16 +155,17 @@ func (p *prog) clone() *prog {
// ProgramOption values.
//
// If the program cannot be configured the prog will be nil, with a non-nil error response.
-func newProgram(e *Env, ast *Ast, opts []ProgramOption) (Program, error) {
+func newProgram(e *Env, a *ast.AST, opts []ProgramOption) (Program, error) {
// Build the dispatcher, interpreter, and default program value.
disp := interpreter.NewDispatcher()
// Ensure the default attribute factory is set after the adapter and provider are
// configured.
p := &prog{
- Env: e,
- decorators: []interpreter.InterpretableDecorator{},
- dispatcher: disp,
+ Env: e,
+ decorators: []interpreter.InterpretableDecorator{},
+ dispatcher: disp,
+ costOptions: []interpreter.CostTrackerOption{},
}
// Configure the program via the ProgramOption values.
@@ -169,7 +179,7 @@ func newProgram(e *Env, ast *Ast, opts []ProgramOption) (Program, error) {
// Add the function bindings created via Function() options.
for _, fn := range e.functions {
- bindings, err := fn.bindings()
+ bindings, err := fn.Bindings()
if err != nil {
return nil, err
}
@@ -181,10 +191,13 @@ func newProgram(e *Env, ast *Ast, opts []ProgramOption) (Program, error) {
// Set the attribute factory after the options have been set.
var attrFactory interpreter.AttributeFactory
+ attrFactorOpts := []interpreter.AttrFactoryOption{
+ interpreter.EnableErrorOnBadPresenceTest(p.HasFeature(featureEnableErrorOnBadPresenceTest)),
+ }
if p.evalOpts&OptPartialEval == OptPartialEval {
- attrFactory = interpreter.NewPartialAttributeFactory(e.Container, e.adapter, e.provider)
+ attrFactory = interpreter.NewPartialAttributeFactory(e.Container, e.adapter, e.provider, attrFactorOpts...)
} else {
- attrFactory = interpreter.NewAttributeFactory(e.Container, e.adapter, e.provider)
+ attrFactory = interpreter.NewAttributeFactory(e.Container, e.adapter, e.provider, attrFactorOpts...)
}
interp := interpreter.NewInterpreter(disp, e.Container, e.provider, e.adapter, attrFactory)
p.interpreter = interp
@@ -206,43 +219,18 @@ func newProgram(e *Env, ast *Ast, opts []ProgramOption) (Program, error) {
if len(p.regexOptimizations) > 0 {
decorators = append(decorators, interpreter.CompileRegexConstants(p.regexOptimizations...))
}
- // Enable compile-time checking of syntax/cardinality for string.format calls.
- if p.evalOpts&OptCheckStringFormat == OptCheckStringFormat {
- var isValidType func(id int64, validTypes ...*types.TypeValue) (bool, error)
- if ast.IsChecked() {
- isValidType = func(id int64, validTypes ...*types.TypeValue) (bool, error) {
- t, err := ExprTypeToType(ast.typeMap[id])
- if err != nil {
- return false, err
- }
- if t.kind == DynKind {
- return true, nil
- }
- for _, vt := range validTypes {
- k, err := typeValueToKind(vt)
- if err != nil {
- return false, err
- }
- if k == t.kind {
- return true, nil
- }
- }
- return false, nil
- }
- } else {
- // if the AST isn't type-checked, short-circuit validation
- isValidType = func(id int64, validTypes ...*types.TypeValue) (bool, error) {
- return true, nil
- }
- }
- decorators = append(decorators, interpreter.InterpolateFormattedString(isValidType))
- }
// Enable exhaustive eval, state tracking and cost tracking last since they require a factory.
if p.evalOpts&(OptExhaustiveEval|OptTrackState|OptTrackCost) != 0 {
factory := func(state interpreter.EvalState, costTracker *interpreter.CostTracker) (Program, error) {
costTracker.Estimator = p.callCostEstimator
costTracker.Limit = p.costLimit
+ for _, costOpt := range p.costOptions {
+ err := costOpt(costTracker)
+ if err != nil {
+ return nil, err
+ }
+ }
// Limit capacity to guarantee a reallocation when calling 'append(decs, ...)' below. This
// prevents the underlying memory from being shared between factory function calls causing
// undesired mutations.
@@ -264,32 +252,16 @@ func newProgram(e *Env, ast *Ast, opts []ProgramOption) (Program, error) {
decs = append(decs, interpreter.Observe(observers...))
}
- return p.clone().initInterpretable(ast, decs)
+ return p.clone().initInterpretable(a, decs)
}
return newProgGen(factory)
}
- return p.initInterpretable(ast, decorators)
+ return p.initInterpretable(a, decorators)
}
-func (p *prog) initInterpretable(ast *Ast, decs []interpreter.InterpretableDecorator) (*prog, error) {
- // Unchecked programs do not contain type and reference information and may be slower to execute.
- if !ast.IsChecked() {
- interpretable, err :=
- p.interpreter.NewUncheckedInterpretable(ast.Expr(), decs...)
- if err != nil {
- return nil, err
- }
- p.interpretable = interpretable
- return p, nil
- }
-
- // When the AST has been checked it contains metadata that can be used to speed up program execution.
- var checked *exprpb.CheckedExpr
- checked, err := AstToCheckedExpr(ast)
- if err != nil {
- return nil, err
- }
- interpretable, err := p.interpreter.NewInterpretable(checked, decs...)
+func (p *prog) initInterpretable(a *ast.AST, decs []interpreter.InterpretableDecorator) (*prog, error) {
+ // When the AST has been exprAST it contains metadata that can be used to speed up program execution.
+ interpretable, err := p.interpreter.NewInterpretable(a, decs...)
if err != nil {
return nil, err
}
@@ -371,7 +343,11 @@ type progGen struct {
// the test is successful.
func newProgGen(factory progFactory) (Program, error) {
// Test the factory to make sure that configuration errors are spotted at config
- _, err := factory(interpreter.NewEvalState(), &interpreter.CostTracker{})
+ tracker, err := interpreter.NewCostTracker(nil)
+ if err != nil {
+ return nil, err
+ }
+ _, err = factory(interpreter.NewEvalState(), tracker)
if err != nil {
return nil, err
}
@@ -384,7 +360,10 @@ func (gen *progGen) Eval(input any) (ref.Val, *EvalDetails, error) {
// new EvalState instance for each call to ensure that unique evaluations yield unique stateful
// results.
state := interpreter.NewEvalState()
- costTracker := &interpreter.CostTracker{}
+ costTracker, err := interpreter.NewCostTracker(nil)
+ if err != nil {
+ return nil, nil, err
+ }
det := &EvalDetails{state: state, costTracker: costTracker}
// Generate a new instance of the interpretable using the factory configured during the call to
@@ -412,7 +391,10 @@ func (gen *progGen) ContextEval(ctx context.Context, input any) (ref.Val, *EvalD
// new EvalState instance for each call to ensure that unique evaluations yield unique stateful
// results.
state := interpreter.NewEvalState()
- costTracker := &interpreter.CostTracker{}
+ costTracker, err := interpreter.NewCostTracker(nil)
+ if err != nil {
+ return nil, nil, err
+ }
det := &EvalDetails{state: state, costTracker: costTracker}
// Generate a new instance of the interpretable using the factory configured during the call to
@@ -498,7 +480,7 @@ type evalActivation struct {
// The lazy binding will only be invoked once per evaluation.
//
// Values which are not represented as ref.Val types on input may be adapted to a ref.Val using
-// the ref.TypeAdapter configured in the environment.
+// the types.Adapter configured in the environment.
func (a *evalActivation) ResolveName(name string) (any, bool) {
v, found := a.vars[name]
if !found {
@@ -559,8 +541,6 @@ func (p *evalActivationPool) Put(value any) {
}
var (
- emptyEvalState = interpreter.NewEvalState()
-
// activationPool is an internally managed pool of Activation values that wrap map[string]any inputs
activationPool = newEvalActivationPool()
diff --git a/vendor/github.com/google/cel-go/cel/validator.go b/vendor/github.com/google/cel-go/cel/validator.go
new file mode 100644
index 0000000..b50c674
--- /dev/null
+++ b/vendor/github.com/google/cel-go/cel/validator.go
@@ -0,0 +1,375 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cel
+
+import (
+ "fmt"
+ "reflect"
+ "regexp"
+
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/overloads"
+)
+
+const (
+ homogeneousValidatorName = "cel.lib.std.validate.types.homogeneous"
+
+ // HomogeneousAggregateLiteralExemptFunctions is the ValidatorConfig key used to configure
+ // the set of function names which are exempt from homogeneous type checks. The expected type
+ // is a string list of function names.
+ //
+ // As an example, the `<string>.format([args])` call expects the input arguments list to be
+ // comprised of a variety of types which correspond to the types expected by the format control
+ // clauses; however, all other uses of a mixed element type list, would be unexpected.
+ HomogeneousAggregateLiteralExemptFunctions = homogeneousValidatorName + ".exempt"
+)
+
+// ASTValidators configures a set of ASTValidator instances into the target environment.
+//
+// Validators are applied in the order in which the are specified and are treated as singletons.
+// The same ASTValidator with a given name will not be applied more than once.
+func ASTValidators(validators ...ASTValidator) EnvOption {
+ return func(e *Env) (*Env, error) {
+ for _, v := range validators {
+ if !e.HasValidator(v.Name()) {
+ e.validators = append(e.validators, v)
+ }
+ }
+ return e, nil
+ }
+}
+
+// ASTValidator defines a singleton interface for validating a type-checked Ast against an environment.
+//
+// Note: the Issues argument is mutable in the sense that it is intended to collect errors which will be
+// reported to the caller.
+type ASTValidator interface {
+ // Name returns the name of the validator. Names must be unique.
+ Name() string
+
+ // Validate validates a given Ast within an Environment and collects a set of potential issues.
+ //
+ // The ValidatorConfig is generated from the set of ASTValidatorConfigurer instances prior to
+ // the invocation of the Validate call. The expectation is that the validator configuration
+ // is created in sequence and immutable once provided to the Validate call.
+ //
+ // See individual validators for more information on their configuration keys and configuration
+ // properties.
+ Validate(*Env, ValidatorConfig, *ast.AST, *Issues)
+}
+
+// ValidatorConfig provides an accessor method for querying validator configuration state.
+type ValidatorConfig interface {
+ GetOrDefault(name string, value any) any
+}
+
+// MutableValidatorConfig provides mutation methods for querying and updating validator configuration
+// settings.
+type MutableValidatorConfig interface {
+ ValidatorConfig
+ Set(name string, value any) error
+}
+
+// ASTValidatorConfigurer indicates that this object, currently expected to be an ASTValidator,
+// participates in validator configuration settings.
+//
+// This interface may be split from the expectation of being an ASTValidator instance in the future.
+type ASTValidatorConfigurer interface {
+ Configure(MutableValidatorConfig) error
+}
+
+// validatorConfig implements the ValidatorConfig and MutableValidatorConfig interfaces.
+type validatorConfig struct {
+ data map[string]any
+}
+
+// newValidatorConfig initializes the validator config with default values for core CEL validators.
+func newValidatorConfig() *validatorConfig {
+ return &validatorConfig{
+ data: map[string]any{
+ HomogeneousAggregateLiteralExemptFunctions: []string{},
+ },
+ }
+}
+
+// GetOrDefault returns the configured value for the name, if present, else the input default value.
+//
+// Note, the type-agreement between the input default and configured value is not checked on read.
+func (config *validatorConfig) GetOrDefault(name string, value any) any {
+ v, found := config.data[name]
+ if !found {
+ return value
+ }
+ return v
+}
+
+// Set configures a validator option with the given name and value.
+//
+// If the value had previously been set, the new value must have the same reflection type as the old one,
+// or the call will error.
+func (config *validatorConfig) Set(name string, value any) error {
+ v, found := config.data[name]
+ if found && reflect.TypeOf(v) != reflect.TypeOf(value) {
+ return fmt.Errorf("incompatible configuration type for %s, got %T, wanted %T", name, value, v)
+ }
+ config.data[name] = value
+ return nil
+}
+
+// ExtendedValidations collects a set of common AST validations which reduce the likelihood of runtime errors.
+//
+// - Validate duration and timestamp literals
+// - Ensure regex strings are valid
+// - Disable mixed type list and map literals
+func ExtendedValidations() EnvOption {
+ return ASTValidators(
+ ValidateDurationLiterals(),
+ ValidateTimestampLiterals(),
+ ValidateRegexLiterals(),
+ ValidateHomogeneousAggregateLiterals(),
+ )
+}
+
+// ValidateDurationLiterals ensures that duration literal arguments are valid immediately after type-check.
+func ValidateDurationLiterals() ASTValidator {
+ return newFormatValidator(overloads.TypeConvertDuration, 0, evalCall)
+}
+
+// ValidateTimestampLiterals ensures that timestamp literal arguments are valid immediately after type-check.
+func ValidateTimestampLiterals() ASTValidator {
+ return newFormatValidator(overloads.TypeConvertTimestamp, 0, evalCall)
+}
+
+// ValidateRegexLiterals ensures that regex patterns are validated after type-check.
+func ValidateRegexLiterals() ASTValidator {
+ return newFormatValidator(overloads.Matches, 0, compileRegex)
+}
+
+// ValidateHomogeneousAggregateLiterals checks that all list and map literals entries have the same types, i.e.
+// no mixed list element types or mixed map key or map value types.
+//
+// Note: the string format call relies on a mixed element type list for ease of use, so this check skips all
+// literals which occur within string format calls.
+func ValidateHomogeneousAggregateLiterals() ASTValidator {
+ return homogeneousAggregateLiteralValidator{}
+}
+
+// ValidateComprehensionNestingLimit ensures that comprehension nesting does not exceed the specified limit.
+//
+// This validator can be useful for preventing arbitrarily nested comprehensions which can take high polynomial
+// time to complete.
+//
+// Note, this limit does not apply to comprehensions with an empty iteration range, as these comprehensions have
+// no actual looping cost. The cel.bind() utilizes the comprehension structure to perform local variable
+// assignments and supplies an empty iteration range, so they won't count against the nesting limit either.
+func ValidateComprehensionNestingLimit(limit int) ASTValidator {
+ return nestingLimitValidator{limit: limit}
+}
+
+type argChecker func(env *Env, call, arg ast.Expr) error
+
+func newFormatValidator(funcName string, argNum int, check argChecker) formatValidator {
+ return formatValidator{
+ funcName: funcName,
+ check: check,
+ argNum: argNum,
+ }
+}
+
+type formatValidator struct {
+ funcName string
+ argNum int
+ check argChecker
+}
+
+// Name returns the unique name of this function format validator.
+func (v formatValidator) Name() string {
+ return fmt.Sprintf("cel.lib.std.validate.functions.%s", v.funcName)
+}
+
+// Validate searches the AST for uses of a given function name with a constant argument and performs a check
+// on whether the argument is a valid literal value.
+func (v formatValidator) Validate(e *Env, _ ValidatorConfig, a *ast.AST, iss *Issues) {
+ root := ast.NavigateAST(a)
+ funcCalls := ast.MatchDescendants(root, ast.FunctionMatcher(v.funcName))
+ for _, call := range funcCalls {
+ callArgs := call.AsCall().Args()
+ if len(callArgs) <= v.argNum {
+ continue
+ }
+ litArg := callArgs[v.argNum]
+ if litArg.Kind() != ast.LiteralKind {
+ continue
+ }
+ if err := v.check(e, call, litArg); err != nil {
+ iss.ReportErrorAtID(litArg.ID(), "invalid %s argument", v.funcName)
+ }
+ }
+}
+
+func evalCall(env *Env, call, arg ast.Expr) error {
+ ast := &Ast{impl: ast.NewAST(call, ast.NewSourceInfo(nil))}
+ prg, err := env.Program(ast)
+ if err != nil {
+ return err
+ }
+ _, _, err = prg.Eval(NoVars())
+ return err
+}
+
+func compileRegex(_ *Env, _, arg ast.Expr) error {
+ pattern := arg.AsLiteral().Value().(string)
+ _, err := regexp.Compile(pattern)
+ return err
+}
+
+type homogeneousAggregateLiteralValidator struct{}
+
+// Name returns the unique name of the homogeneous type validator.
+func (homogeneousAggregateLiteralValidator) Name() string {
+ return homogeneousValidatorName
+}
+
+// Validate validates that all lists and map literals have homogeneous types, i.e. don't contain dyn types.
+//
+// This validator makes an exception for list and map literals which occur at any level of nesting within
+// string format calls.
+func (v homogeneousAggregateLiteralValidator) Validate(_ *Env, c ValidatorConfig, a *ast.AST, iss *Issues) {
+ var exemptedFunctions []string
+ exemptedFunctions = c.GetOrDefault(HomogeneousAggregateLiteralExemptFunctions, exemptedFunctions).([]string)
+ root := ast.NavigateAST(a)
+ listExprs := ast.MatchDescendants(root, ast.KindMatcher(ast.ListKind))
+ for _, listExpr := range listExprs {
+ if inExemptFunction(listExpr, exemptedFunctions) {
+ continue
+ }
+ l := listExpr.AsList()
+ elements := l.Elements()
+ optIndices := l.OptionalIndices()
+ var elemType *Type
+ for i, e := range elements {
+ et := a.GetType(e.ID())
+ if isOptionalIndex(i, optIndices) {
+ et = et.Parameters()[0]
+ }
+ if elemType == nil {
+ elemType = et
+ continue
+ }
+ if !elemType.IsEquivalentType(et) {
+ v.typeMismatch(iss, e.ID(), elemType, et)
+ break
+ }
+ }
+ }
+ mapExprs := ast.MatchDescendants(root, ast.KindMatcher(ast.MapKind))
+ for _, mapExpr := range mapExprs {
+ if inExemptFunction(mapExpr, exemptedFunctions) {
+ continue
+ }
+ m := mapExpr.AsMap()
+ entries := m.Entries()
+ var keyType, valType *Type
+ for _, e := range entries {
+ mapEntry := e.AsMapEntry()
+ key, val := mapEntry.Key(), mapEntry.Value()
+ kt, vt := a.GetType(key.ID()), a.GetType(val.ID())
+ if mapEntry.IsOptional() {
+ vt = vt.Parameters()[0]
+ }
+ if keyType == nil && valType == nil {
+ keyType, valType = kt, vt
+ continue
+ }
+ if !keyType.IsEquivalentType(kt) {
+ v.typeMismatch(iss, key.ID(), keyType, kt)
+ }
+ if !valType.IsEquivalentType(vt) {
+ v.typeMismatch(iss, val.ID(), valType, vt)
+ }
+ }
+ }
+}
+
+func inExemptFunction(e ast.NavigableExpr, exemptFunctions []string) bool {
+ parent, found := e.Parent()
+ for found {
+ if parent.Kind() == ast.CallKind {
+ fnName := parent.AsCall().FunctionName()
+ for _, exempt := range exemptFunctions {
+ if exempt == fnName {
+ return true
+ }
+ }
+ }
+ parent, found = parent.Parent()
+ }
+ return false
+}
+
+func isOptionalIndex(i int, optIndices []int32) bool {
+ for _, optInd := range optIndices {
+ if i == int(optInd) {
+ return true
+ }
+ }
+ return false
+}
+
+func (homogeneousAggregateLiteralValidator) typeMismatch(iss *Issues, id int64, expected, actual *Type) {
+ iss.ReportErrorAtID(id, "expected type '%s' but found '%s'", FormatCELType(expected), FormatCELType(actual))
+}
+
+type nestingLimitValidator struct {
+ limit int
+}
+
+func (v nestingLimitValidator) Name() string {
+ return "cel.lib.std.validate.comprehension_nesting_limit"
+}
+
+func (v nestingLimitValidator) Validate(e *Env, _ ValidatorConfig, a *ast.AST, iss *Issues) {
+ root := ast.NavigateAST(a)
+ comprehensions := ast.MatchDescendants(root, ast.KindMatcher(ast.ComprehensionKind))
+ if len(comprehensions) <= v.limit {
+ return
+ }
+ for _, comp := range comprehensions {
+ count := 0
+ e := comp
+ hasParent := true
+ for hasParent {
+ // When the expression is not a comprehension, continue to the next ancestor.
+ if e.Kind() != ast.ComprehensionKind {
+ e, hasParent = e.Parent()
+ continue
+ }
+ // When the comprehension has an empty range, continue to the next ancestor
+ // as this comprehension does not have any associated cost.
+ iterRange := e.AsComprehension().IterRange()
+ if iterRange.Kind() == ast.ListKind && iterRange.AsList().Size() == 0 {
+ e, hasParent = e.Parent()
+ continue
+ }
+ // Otherwise check the nesting limit.
+ count++
+ if count > v.limit {
+ iss.ReportErrorAtID(comp.ID(), "comprehension exceeds nesting limit")
+ break
+ }
+ e, hasParent = e.Parent()
+ }
+ }
+}
diff --git a/vendor/github.com/google/cel-go/checker/BUILD.bazel b/vendor/github.com/google/cel-go/checker/BUILD.bazel
index ac2417b..678b412 100644
--- a/vendor/github.com/google/cel-go/checker/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/checker/BUILD.bazel
@@ -11,10 +11,11 @@ go_library(
"cost.go",
"env.go",
"errors.go",
+ "format.go",
"mapping.go",
"options.go",
"printer.go",
- "standard.go",
+ "scopes.go",
"types.go",
],
importpath = "github.com/google/cel-go/checker",
@@ -22,15 +23,18 @@ go_library(
deps = [
"//checker/decls:go_default_library",
"//common:go_default_library",
+ "//common/ast:go_default_library",
"//common/containers:go_default_library",
"//common/debug:go_default_library",
+ "//common/decls:go_default_library",
"//common/operators:go_default_library",
"//common/overloads:go_default_library",
+ "//common/stdlib:go_default_library",
"//common/types:go_default_library",
"//common/types/pb:go_default_library",
"//common/types/ref:go_default_library",
"//parser:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//types/known/emptypb:go_default_library",
"@org_golang_google_protobuf//types/known/structpb:go_default_library",
@@ -44,6 +48,7 @@ go_test(
"checker_test.go",
"cost_test.go",
"env_test.go",
+ "format_test.go",
],
embed = [
":go_default_library",
@@ -54,7 +59,6 @@ go_test(
"//test:go_default_library",
"//test/proto2pb:go_default_library",
"//test/proto3pb:go_default_library",
- "@com_github_antlr_antlr4_runtime_go_antlr_v4//:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
],
)
diff --git a/vendor/github.com/google/cel-go/checker/checker.go b/vendor/github.com/google/cel-go/checker/checker.go
index 257cffe..6824af7 100644
--- a/vendor/github.com/google/cel-go/checker/checker.go
+++ b/vendor/github.com/google/cel-go/checker/checker.go
@@ -20,150 +20,104 @@ import (
"fmt"
"reflect"
- "github.com/google/cel-go/checker/decls"
"github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/containers"
+ "github.com/google/cel-go/common/decls"
"github.com/google/cel-go/common/operators"
+ "github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
-
- "google.golang.org/protobuf/proto"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
type checker struct {
+ *ast.AST
+ ast.ExprFactory
env *Env
errors *typeErrors
mappings *mapping
freeTypeVarCounter int
- sourceInfo *exprpb.SourceInfo
- types map[int64]*exprpb.Type
- references map[int64]*exprpb.Reference
}
// Check performs type checking, giving a typed AST.
-// The input is a ParsedExpr proto and an env which encapsulates
-// type binding of variables, declarations of built-in functions,
-// descriptions of protocol buffers, and a registry for errors.
-// Returns a CheckedExpr proto, which might not be usable if
-// there are errors in the error registry.
-func Check(parsedExpr *exprpb.ParsedExpr,
- source common.Source,
- env *Env) (*exprpb.CheckedExpr, *common.Errors) {
+//
+// The input is a parsed AST and an env which encapsulates type binding of variables,
+// declarations of built-in functions, descriptions of protocol buffers, and a registry for
+// errors.
+//
+// Returns a type-checked AST, which might not be usable if there are errors in the error
+// registry.
+func Check(parsed *ast.AST, source common.Source, env *Env) (*ast.AST, *common.Errors) {
+ errs := common.NewErrors(source)
+ typeMap := make(map[int64]*types.Type)
+ refMap := make(map[int64]*ast.ReferenceInfo)
c := checker{
+ AST: ast.NewCheckedAST(parsed, typeMap, refMap),
+ ExprFactory: ast.NewExprFactory(),
env: env,
- errors: &typeErrors{common.NewErrors(source)},
+ errors: &typeErrors{errs: errs},
mappings: newMapping(),
freeTypeVarCounter: 0,
- sourceInfo: parsedExpr.GetSourceInfo(),
- types: make(map[int64]*exprpb.Type),
- references: make(map[int64]*exprpb.Reference),
}
- c.check(parsedExpr.GetExpr())
+ c.check(c.Expr())
- // Walk over the final type map substituting any type parameters either by their bound value or
- // by DYN.
- m := make(map[int64]*exprpb.Type)
- for k, v := range c.types {
- m[k] = substitute(c.mappings, v, true)
+ // Walk over the final type map substituting any type parameters either by their bound value
+ // or by DYN.
+ for id, t := range c.TypeMap() {
+ c.SetType(id, substitute(c.mappings, t, true))
}
-
- return &exprpb.CheckedExpr{
- Expr: parsedExpr.GetExpr(),
- SourceInfo: parsedExpr.GetSourceInfo(),
- TypeMap: m,
- ReferenceMap: c.references,
- }, c.errors.Errors
+ return c.AST, errs
}
-func (c *checker) check(e *exprpb.Expr) {
+func (c *checker) check(e ast.Expr) {
if e == nil {
return
}
-
- switch e.GetExprKind().(type) {
- case *exprpb.Expr_ConstExpr:
- literal := e.GetConstExpr()
- switch literal.GetConstantKind().(type) {
- case *exprpb.Constant_BoolValue:
- c.checkBoolLiteral(e)
- case *exprpb.Constant_BytesValue:
- c.checkBytesLiteral(e)
- case *exprpb.Constant_DoubleValue:
- c.checkDoubleLiteral(e)
- case *exprpb.Constant_Int64Value:
- c.checkInt64Literal(e)
- case *exprpb.Constant_NullValue:
- c.checkNullLiteral(e)
- case *exprpb.Constant_StringValue:
- c.checkStringLiteral(e)
- case *exprpb.Constant_Uint64Value:
- c.checkUint64Literal(e)
+ switch e.Kind() {
+ case ast.LiteralKind:
+ literal := ref.Val(e.AsLiteral())
+ switch literal.Type() {
+ case types.BoolType, types.BytesType, types.DoubleType, types.IntType,
+ types.NullType, types.StringType, types.UintType:
+ c.setType(e, literal.Type().(*types.Type))
+ default:
+ c.errors.unexpectedASTType(e.ID(), c.location(e), "literal", literal.Type().TypeName())
}
- case *exprpb.Expr_IdentExpr:
+ case ast.IdentKind:
c.checkIdent(e)
- case *exprpb.Expr_SelectExpr:
+ case ast.SelectKind:
c.checkSelect(e)
- case *exprpb.Expr_CallExpr:
+ case ast.CallKind:
c.checkCall(e)
- case *exprpb.Expr_ListExpr:
+ case ast.ListKind:
c.checkCreateList(e)
- case *exprpb.Expr_StructExpr:
+ case ast.MapKind:
+ c.checkCreateMap(e)
+ case ast.StructKind:
c.checkCreateStruct(e)
- case *exprpb.Expr_ComprehensionExpr:
+ case ast.ComprehensionKind:
c.checkComprehension(e)
default:
- c.errors.ReportError(
- c.location(e), "Unrecognized ast type: %v", reflect.TypeOf(e))
+ c.errors.unexpectedASTType(e.ID(), c.location(e), "unspecified", reflect.TypeOf(e).Name())
}
}
-func (c *checker) checkInt64Literal(e *exprpb.Expr) {
- c.setType(e, decls.Int)
-}
-
-func (c *checker) checkUint64Literal(e *exprpb.Expr) {
- c.setType(e, decls.Uint)
-}
-
-func (c *checker) checkStringLiteral(e *exprpb.Expr) {
- c.setType(e, decls.String)
-}
-
-func (c *checker) checkBytesLiteral(e *exprpb.Expr) {
- c.setType(e, decls.Bytes)
-}
-
-func (c *checker) checkDoubleLiteral(e *exprpb.Expr) {
- c.setType(e, decls.Double)
-}
-
-func (c *checker) checkBoolLiteral(e *exprpb.Expr) {
- c.setType(e, decls.Bool)
-}
-
-func (c *checker) checkNullLiteral(e *exprpb.Expr) {
- c.setType(e, decls.Null)
-}
-
-func (c *checker) checkIdent(e *exprpb.Expr) {
- identExpr := e.GetIdentExpr()
+func (c *checker) checkIdent(e ast.Expr) {
+ identName := e.AsIdent()
// Check to see if the identifier is declared.
- if ident := c.env.LookupIdent(identExpr.GetName()); ident != nil {
- c.setType(e, ident.GetIdent().GetType())
- c.setReference(e, newIdentReference(ident.GetName(), ident.GetIdent().GetValue()))
+ if ident := c.env.LookupIdent(identName); ident != nil {
+ c.setType(e, ident.Type())
+ c.setReference(e, ast.NewIdentReference(ident.Name(), ident.Value()))
// Overwrite the identifier with its fully qualified name.
- identExpr.Name = ident.GetName()
+ e.SetKindCase(c.NewIdent(e.ID(), ident.Name()))
return
}
- c.setType(e, decls.Error)
- c.errors.undeclaredReference(
- c.location(e), c.env.container.Name(), identExpr.GetName())
+ c.setType(e, types.ErrorType)
+ c.errors.undeclaredReference(e.ID(), c.location(e), c.env.container.Name(), identName)
}
-func (c *checker) checkSelect(e *exprpb.Expr) {
- sel := e.GetSelectExpr()
+func (c *checker) checkSelect(e ast.Expr) {
+ sel := e.AsSelect()
// Before traversing down the tree, try to interpret as qualified name.
qname, found := containers.ToQualifiedName(e)
if found {
@@ -174,42 +128,38 @@ func (c *checker) checkSelect(e *exprpb.Expr) {
// Rewrite the node to be a variable reference to the resolved fully-qualified
// variable name.
- c.setType(e, ident.GetIdent().GetType())
- c.setReference(e, newIdentReference(ident.GetName(), ident.GetIdent().GetValue()))
- identName := ident.GetName()
- e.ExprKind = &exprpb.Expr_IdentExpr{
- IdentExpr: &exprpb.Expr_Ident{
- Name: identName,
- },
- }
+ c.setType(e, ident.Type())
+ c.setReference(e, ast.NewIdentReference(ident.Name(), ident.Value()))
+ e.SetKindCase(c.NewIdent(e.ID(), ident.Name()))
return
}
}
- resultType := c.checkSelectField(e, sel.GetOperand(), sel.GetField(), false)
- if sel.TestOnly {
- resultType = decls.Bool
+ resultType := c.checkSelectField(e, sel.Operand(), sel.FieldName(), false)
+ if sel.IsTestOnly() {
+ resultType = types.BoolType
}
c.setType(e, substitute(c.mappings, resultType, false))
}
-func (c *checker) checkOptSelect(e *exprpb.Expr) {
+func (c *checker) checkOptSelect(e ast.Expr) {
// Collect metadata related to the opt select call packaged by the parser.
- call := e.GetCallExpr()
- operand := call.GetArgs()[0]
- field := call.GetArgs()[1]
+ call := e.AsCall()
+ operand := call.Args()[0]
+ field := call.Args()[1]
fieldName, isString := maybeUnwrapString(field)
if !isString {
- c.errors.ReportError(c.location(field), "unsupported optional field selection: %v", field)
+ c.errors.notAnOptionalFieldSelection(field.ID(), c.location(field), field)
return
}
// Perform type-checking using the field selection logic.
resultType := c.checkSelectField(e, operand, fieldName, true)
c.setType(e, substitute(c.mappings, resultType, false))
+ c.setReference(e, ast.NewFunctionReference("select_optional_field"))
}
-func (c *checker) checkSelectField(e, operand *exprpb.Expr, field string, optional bool) *exprpb.Type {
+func (c *checker) checkSelectField(e, operand ast.Expr, field string, optional bool) *types.Type {
// Interpret as field selection, first traversing down the operand.
c.check(operand)
operandType := substitute(c.mappings, c.getType(operand), false)
@@ -218,74 +168,71 @@ func (c *checker) checkSelectField(e, operand *exprpb.Expr, field string, option
targetType, isOpt := maybeUnwrapOptional(operandType)
// Assume error type by default as most types do not support field selection.
- resultType := decls.Error
- switch kindOf(targetType) {
- case kindMap:
+ resultType := types.ErrorType
+ switch targetType.Kind() {
+ case types.MapKind:
// Maps yield their value type as the selection result type.
- mapType := targetType.GetMapType()
- resultType = mapType.GetValueType()
- case kindObject:
+ resultType = targetType.Parameters()[1]
+ case types.StructKind:
// Objects yield their field type declaration as the selection result type, but only if
// the field is defined.
messageType := targetType
- if fieldType, found := c.lookupFieldType(c.location(e), messageType.GetMessageType(), field); found {
- resultType = fieldType.Type
+ if fieldType, found := c.lookupFieldType(e.ID(), messageType.TypeName(), field); found {
+ resultType = fieldType
}
- case kindTypeParam:
+ case types.TypeParamKind:
// Set the operand type to DYN to prevent assignment to a potentially incorrect type
// at a later point in type-checking. The isAssignable call will update the type
// substitutions for the type param under the covers.
- c.isAssignable(decls.Dyn, targetType)
+ c.isAssignable(types.DynType, targetType)
// Also, set the result type to DYN.
- resultType = decls.Dyn
+ resultType = types.DynType
default:
// Dynamic / error values are treated as DYN type. Errors are handled this way as well
// in order to allow forward progress on the check.
if !isDynOrError(targetType) {
- c.errors.typeDoesNotSupportFieldSelection(c.location(e), targetType)
+ c.errors.typeDoesNotSupportFieldSelection(e.ID(), c.location(e), targetType)
}
- resultType = decls.Dyn
+ resultType = types.DynType
}
// If the target type was optional coming in, then the result must be optional going out.
if isOpt || optional {
- return decls.NewOptionalType(resultType)
+ return types.NewOptionalType(resultType)
}
return resultType
}
-func (c *checker) checkCall(e *exprpb.Expr) {
+func (c *checker) checkCall(e ast.Expr) {
// Note: similar logic exists within the `interpreter/planner.go`. If making changes here
// please consider the impact on planner.go and consolidate implementations or mirror code
// as appropriate.
- call := e.GetCallExpr()
- fnName := call.GetFunction()
+ call := e.AsCall()
+ fnName := call.FunctionName()
if fnName == operators.OptSelect {
c.checkOptSelect(e)
return
}
- args := call.GetArgs()
+ args := call.Args()
// Traverse arguments.
for _, arg := range args {
c.check(arg)
}
- target := call.GetTarget()
// Regular static call with simple name.
- if target == nil {
+ if !call.IsMemberFunction() {
// Check for the existence of the function.
fn := c.env.LookupFunction(fnName)
if fn == nil {
- c.errors.undeclaredReference(
- c.location(e), c.env.container.Name(), fnName)
- c.setType(e, decls.Error)
+ c.errors.undeclaredReference(e.ID(), c.location(e), c.env.container.Name(), fnName)
+ c.setType(e, types.ErrorType)
return
}
// Overwrite the function name with its fully qualified resolved name.
- call.Function = fn.GetName()
+ e.SetKindCase(c.NewCall(e.ID(), fn.Name(), args...))
// Check to see whether the overload resolves.
- c.resolveOverloadOrError(c.location(e), e, fn, nil, args)
+ c.resolveOverloadOrError(e, fn, nil, args)
return
}
@@ -294,6 +241,7 @@ func (c *checker) checkCall(e *exprpb.Expr) {
// target a.b.
//
// Check whether the target is a namespaced function name.
+ target := call.Target()
qualifiedPrefix, maybeQualified := containers.ToQualifiedName(target)
if maybeQualified {
maybeQualifiedName := qualifiedPrefix + "." + fnName
@@ -302,34 +250,32 @@ func (c *checker) checkCall(e *exprpb.Expr) {
// The function name is namespaced and so preserving the target operand would
// be an inaccurate representation of the desired evaluation behavior.
// Overwrite with fully-qualified resolved function name sans receiver target.
- call.Target = nil
- call.Function = fn.GetName()
- c.resolveOverloadOrError(c.location(e), e, fn, nil, args)
+ e.SetKindCase(c.NewCall(e.ID(), fn.Name(), args...))
+ c.resolveOverloadOrError(e, fn, nil, args)
return
}
}
// Regular instance call.
- c.check(call.Target)
+ c.check(target)
fn := c.env.LookupFunction(fnName)
// Function found, attempt overload resolution.
if fn != nil {
- c.resolveOverloadOrError(c.location(e), e, fn, target, args)
+ c.resolveOverloadOrError(e, fn, target, args)
return
}
// Function name not declared, record error.
- c.errors.undeclaredReference(c.location(e), c.env.container.Name(), fnName)
+ c.setType(e, types.ErrorType)
+ c.errors.undeclaredReference(e.ID(), c.location(e), c.env.container.Name(), fnName)
}
func (c *checker) resolveOverloadOrError(
- loc common.Location,
- e *exprpb.Expr,
- fn *exprpb.Decl, target *exprpb.Expr, args []*exprpb.Expr) {
+ e ast.Expr, fn *decls.FunctionDecl, target ast.Expr, args []ast.Expr) {
// Attempt to resolve the overload.
- resolution := c.resolveOverload(loc, fn, target, args)
+ resolution := c.resolveOverload(e, fn, target, args)
// No such overload, error noted in the resolveOverload call, type recorded here.
if resolution == nil {
- c.setType(e, decls.Error)
+ c.setType(e, types.ErrorType)
return
}
// Overload found.
@@ -338,10 +284,9 @@ func (c *checker) resolveOverloadOrError(
}
func (c *checker) resolveOverload(
- loc common.Location,
- fn *exprpb.Decl, target *exprpb.Expr, args []*exprpb.Expr) *overloadResolution {
+ call ast.Expr, fn *decls.FunctionDecl, target ast.Expr, args []ast.Expr) *overloadResolution {
- var argTypes []*exprpb.Type
+ var argTypes []*types.Type
if target != nil {
argTypes = append(argTypes, c.getType(target))
}
@@ -349,234 +294,273 @@ func (c *checker) resolveOverload(
argTypes = append(argTypes, c.getType(arg))
}
- var resultType *exprpb.Type
- var checkedRef *exprpb.Reference
- for _, overload := range fn.GetFunction().GetOverloads() {
+ var resultType *types.Type
+ var checkedRef *ast.ReferenceInfo
+ for _, overload := range fn.OverloadDecls() {
// Determine whether the overload is currently considered.
- if c.env.isOverloadDisabled(overload.GetOverloadId()) {
+ if c.env.isOverloadDisabled(overload.ID()) {
continue
}
// Ensure the call style for the overload matches.
- if (target == nil && overload.GetIsInstanceFunction()) ||
- (target != nil && !overload.GetIsInstanceFunction()) {
+ if (target == nil && overload.IsMemberFunction()) ||
+ (target != nil && !overload.IsMemberFunction()) {
// not a compatible call style.
continue
}
- overloadType := decls.NewFunctionType(overload.ResultType, overload.Params...)
- if len(overload.GetTypeParams()) > 0 {
+ // Alternative type-checking behavior when the logical operators are compacted into
+ // variadic AST representations.
+ if fn.Name() == operators.LogicalAnd || fn.Name() == operators.LogicalOr {
+ checkedRef = ast.NewFunctionReference(overload.ID())
+ for i, argType := range argTypes {
+ if !c.isAssignable(argType, types.BoolType) {
+ c.errors.typeMismatch(
+ args[i].ID(),
+ c.locationByID(args[i].ID()),
+ types.BoolType,
+ argType)
+ resultType = types.ErrorType
+ }
+ }
+ if isError(resultType) {
+ return nil
+ }
+ return newResolution(checkedRef, types.BoolType)
+ }
+
+ overloadType := newFunctionType(overload.ResultType(), overload.ArgTypes()...)
+ typeParams := overload.TypeParams()
+ if len(typeParams) != 0 {
// Instantiate overload's type with fresh type variables.
substitutions := newMapping()
- for _, typePar := range overload.GetTypeParams() {
- substitutions.add(decls.NewTypeParamType(typePar), c.newTypeVar())
+ for _, typePar := range typeParams {
+ substitutions.add(types.NewTypeParamType(typePar), c.newTypeVar())
}
overloadType = substitute(substitutions, overloadType, false)
}
- candidateArgTypes := overloadType.GetFunction().GetArgTypes()
+ candidateArgTypes := overloadType.Parameters()[1:]
if c.isAssignableList(argTypes, candidateArgTypes) {
if checkedRef == nil {
- checkedRef = newFunctionReference(overload.GetOverloadId())
+ checkedRef = ast.NewFunctionReference(overload.ID())
} else {
- checkedRef.OverloadId = append(checkedRef.GetOverloadId(), overload.GetOverloadId())
+ checkedRef.AddOverload(overload.ID())
}
// First matching overload, determines result type.
- fnResultType := substitute(c.mappings, overloadType.GetFunction().GetResultType(), false)
+ fnResultType := substitute(c.mappings, overloadType.Parameters()[0], false)
if resultType == nil {
resultType = fnResultType
- } else if !isDyn(resultType) && !proto.Equal(fnResultType, resultType) {
- resultType = decls.Dyn
+ } else if !isDyn(resultType) && !fnResultType.IsExactType(resultType) {
+ resultType = types.DynType
}
}
}
if resultType == nil {
- for i, arg := range argTypes {
- argTypes[i] = substitute(c.mappings, arg, true)
+ for i, argType := range argTypes {
+ argTypes[i] = substitute(c.mappings, argType, true)
}
- c.errors.noMatchingOverload(loc, fn.GetName(), argTypes, target != nil)
- resultType = decls.Error
+ c.errors.noMatchingOverload(call.ID(), c.location(call), fn.Name(), argTypes, target != nil)
return nil
}
return newResolution(checkedRef, resultType)
}
-func (c *checker) checkCreateList(e *exprpb.Expr) {
- create := e.GetListExpr()
- var elemsType *exprpb.Type
- optionalIndices := create.GetOptionalIndices()
+func (c *checker) checkCreateList(e ast.Expr) {
+ create := e.AsList()
+ var elemsType *types.Type
+ optionalIndices := create.OptionalIndices()
optionals := make(map[int32]bool, len(optionalIndices))
for _, optInd := range optionalIndices {
optionals[optInd] = true
}
- for i, e := range create.GetElements() {
+ for i, e := range create.Elements() {
c.check(e)
elemType := c.getType(e)
if optionals[int32(i)] {
var isOptional bool
elemType, isOptional = maybeUnwrapOptional(elemType)
if !isOptional && !isDyn(elemType) {
- c.errors.typeMismatch(c.location(e), decls.NewOptionalType(elemType), elemType)
+ c.errors.typeMismatch(e.ID(), c.location(e), types.NewOptionalType(elemType), elemType)
}
}
- elemsType = c.joinTypes(c.location(e), elemsType, elemType)
+ elemsType = c.joinTypes(e, elemsType, elemType)
}
if elemsType == nil {
// If the list is empty, assign free type var to elem type.
elemsType = c.newTypeVar()
}
- c.setType(e, decls.NewListType(elemsType))
+ c.setType(e, types.NewListType(elemsType))
}
-func (c *checker) checkCreateStruct(e *exprpb.Expr) {
- str := e.GetStructExpr()
- if str.GetMessageName() != "" {
- c.checkCreateMessage(e)
- } else {
- c.checkCreateMap(e)
- }
-}
-
-func (c *checker) checkCreateMap(e *exprpb.Expr) {
- mapVal := e.GetStructExpr()
- var mapKeyType *exprpb.Type
- var mapValueType *exprpb.Type
- for _, ent := range mapVal.GetEntries() {
- key := ent.GetMapKey()
+func (c *checker) checkCreateMap(e ast.Expr) {
+ mapVal := e.AsMap()
+ var mapKeyType *types.Type
+ var mapValueType *types.Type
+ for _, e := range mapVal.Entries() {
+ entry := e.AsMapEntry()
+ key := entry.Key()
c.check(key)
- mapKeyType = c.joinTypes(c.location(key), mapKeyType, c.getType(key))
+ mapKeyType = c.joinTypes(key, mapKeyType, c.getType(key))
- val := ent.GetValue()
+ val := entry.Value()
c.check(val)
valType := c.getType(val)
- if ent.GetOptionalEntry() {
+ if entry.IsOptional() {
var isOptional bool
valType, isOptional = maybeUnwrapOptional(valType)
if !isOptional && !isDyn(valType) {
- c.errors.typeMismatch(c.location(val), decls.NewOptionalType(valType), valType)
+ c.errors.typeMismatch(val.ID(), c.location(val), types.NewOptionalType(valType), valType)
}
}
- mapValueType = c.joinTypes(c.location(val), mapValueType, valType)
+ mapValueType = c.joinTypes(val, mapValueType, valType)
}
if mapKeyType == nil {
// If the map is empty, assign free type variables to typeKey and value type.
mapKeyType = c.newTypeVar()
mapValueType = c.newTypeVar()
}
- c.setType(e, decls.NewMapType(mapKeyType, mapValueType))
+ c.setType(e, types.NewMapType(mapKeyType, mapValueType))
}
-func (c *checker) checkCreateMessage(e *exprpb.Expr) {
- msgVal := e.GetStructExpr()
+func (c *checker) checkCreateStruct(e ast.Expr) {
+ msgVal := e.AsStruct()
// Determine the type of the message.
- messageType := decls.Error
- decl := c.env.LookupIdent(msgVal.GetMessageName())
- if decl == nil {
+ resultType := types.ErrorType
+ ident := c.env.LookupIdent(msgVal.TypeName())
+ if ident == nil {
c.errors.undeclaredReference(
- c.location(e), c.env.container.Name(), msgVal.GetMessageName())
+ e.ID(), c.location(e), c.env.container.Name(), msgVal.TypeName())
+ c.setType(e, types.ErrorType)
return
}
// Ensure the type name is fully qualified in the AST.
- msgVal.MessageName = decl.GetName()
- c.setReference(e, newIdentReference(decl.GetName(), nil))
- ident := decl.GetIdent()
- identKind := kindOf(ident.GetType())
- if identKind != kindError {
- if identKind != kindType {
- c.errors.notAType(c.location(e), ident.GetType())
+ typeName := ident.Name()
+ if msgVal.TypeName() != typeName {
+ e.SetKindCase(c.NewStruct(e.ID(), typeName, msgVal.Fields()))
+ msgVal = e.AsStruct()
+ }
+ c.setReference(e, ast.NewIdentReference(typeName, nil))
+ identKind := ident.Type().Kind()
+ if identKind != types.ErrorKind {
+ if identKind != types.TypeKind {
+ c.errors.notAType(e.ID(), c.location(e), ident.Type().DeclaredTypeName())
} else {
- messageType = ident.GetType().GetType()
- if kindOf(messageType) != kindObject {
- c.errors.notAMessageType(c.location(e), messageType)
- messageType = decls.Error
+ resultType = ident.Type().Parameters()[0]
+ // Backwards compatibility test between well-known types and message types
+ // In this context, the type is being instantiated by its protobuf name which
+ // is not ideal or recommended, but some users expect this to work.
+ if isWellKnownType(resultType) {
+ typeName = getWellKnownTypeName(resultType)
+ } else if resultType.Kind() == types.StructKind {
+ typeName = resultType.DeclaredTypeName()
+ } else {
+ c.errors.notAMessageType(e.ID(), c.location(e), resultType.DeclaredTypeName())
+ resultType = types.ErrorType
}
}
}
- if isObjectWellKnownType(messageType) {
- c.setType(e, getObjectWellKnownType(messageType))
- } else {
- c.setType(e, messageType)
- }
+ c.setType(e, resultType)
// Check the field initializers.
- for _, ent := range msgVal.GetEntries() {
- field := ent.GetFieldKey()
- value := ent.GetValue()
+ for _, f := range msgVal.Fields() {
+ field := f.AsStructField()
+ fieldName := field.Name()
+ value := field.Value()
c.check(value)
- fieldType := decls.Error
- ft, found := c.lookupFieldType(c.locationByID(ent.GetId()), messageType.GetMessageType(), field)
+ fieldType := types.ErrorType
+ ft, found := c.lookupFieldType(f.ID(), typeName, fieldName)
if found {
- fieldType = ft.Type
+ fieldType = ft
}
valType := c.getType(value)
- if ent.GetOptionalEntry() {
+ if field.IsOptional() {
var isOptional bool
valType, isOptional = maybeUnwrapOptional(valType)
if !isOptional && !isDyn(valType) {
- c.errors.typeMismatch(c.location(value), decls.NewOptionalType(valType), valType)
+ c.errors.typeMismatch(value.ID(), c.location(value), types.NewOptionalType(valType), valType)
}
}
if !c.isAssignable(fieldType, valType) {
- c.errors.fieldTypeMismatch(c.locationByID(ent.Id), field, fieldType, valType)
+ c.errors.fieldTypeMismatch(f.ID(), c.locationByID(f.ID()), fieldName, fieldType, valType)
}
}
}
-func (c *checker) checkComprehension(e *exprpb.Expr) {
- comp := e.GetComprehensionExpr()
- c.check(comp.GetIterRange())
- c.check(comp.GetAccuInit())
- accuType := c.getType(comp.GetAccuInit())
- rangeType := substitute(c.mappings, c.getType(comp.GetIterRange()), false)
- var varType *exprpb.Type
-
- switch kindOf(rangeType) {
- case kindList:
- varType = rangeType.GetListType().GetElemType()
- case kindMap:
- // Ranges over the keys.
- varType = rangeType.GetMapType().GetKeyType()
- case kindDyn, kindError, kindTypeParam:
+func (c *checker) checkComprehension(e ast.Expr) {
+ comp := e.AsComprehension()
+ c.check(comp.IterRange())
+ c.check(comp.AccuInit())
+ rangeType := substitute(c.mappings, c.getType(comp.IterRange()), false)
+
+ // Create a scope for the comprehension since it has a local accumulation variable.
+ // This scope will contain the accumulation variable used to compute the result.
+ accuType := c.getType(comp.AccuInit())
+ c.env = c.env.enterScope()
+ c.env.AddIdents(decls.NewVariable(comp.AccuVar(), accuType))
+
+ var varType, var2Type *types.Type
+ switch rangeType.Kind() {
+ case types.ListKind:
+ // varType represents the list element type for one-variable comprehensions.
+ varType = rangeType.Parameters()[0]
+ if comp.HasIterVar2() {
+ // varType represents the list index (int) for two-variable comprehensions,
+ // and var2Type represents the list element type.
+ var2Type = varType
+ varType = types.IntType
+ }
+ case types.MapKind:
+ // varType represents the map entry key for all comprehension types.
+ varType = rangeType.Parameters()[0]
+ if comp.HasIterVar2() {
+ // var2Type represents the map entry value for two-variable comprehensions.
+ var2Type = rangeType.Parameters()[1]
+ }
+ case types.DynKind, types.ErrorKind, types.TypeParamKind:
// Set the range type to DYN to prevent assignment to a potentially incorrect type
// at a later point in type-checking. The isAssignable call will update the type
// substitutions for the type param under the covers.
- c.isAssignable(decls.Dyn, rangeType)
+ c.isAssignable(types.DynType, rangeType)
// Set the range iteration variable to type DYN as well.
- varType = decls.Dyn
+ varType = types.DynType
+ if comp.HasIterVar2() {
+ var2Type = types.DynType
+ }
default:
- c.errors.notAComprehensionRange(c.location(comp.GetIterRange()), rangeType)
- varType = decls.Error
+ c.errors.notAComprehensionRange(comp.IterRange().ID(), c.location(comp.IterRange()), rangeType)
+ varType = types.ErrorType
+ if comp.HasIterVar2() {
+ var2Type = types.ErrorType
+ }
}
- // Create a scope for the comprehension since it has a local accumulation variable.
- // This scope will contain the accumulation variable used to compute the result.
- c.env = c.env.enterScope()
- c.env.Add(decls.NewVar(comp.GetAccuVar(), accuType))
// Create a block scope for the loop.
c.env = c.env.enterScope()
- c.env.Add(decls.NewVar(comp.GetIterVar(), varType))
+ c.env.AddIdents(decls.NewVariable(comp.IterVar(), varType))
+ if comp.HasIterVar2() {
+ c.env.AddIdents(decls.NewVariable(comp.IterVar2(), var2Type))
+ }
// Check the variable references in the condition and step.
- c.check(comp.GetLoopCondition())
- c.assertType(comp.GetLoopCondition(), decls.Bool)
- c.check(comp.GetLoopStep())
- c.assertType(comp.GetLoopStep(), accuType)
+ c.check(comp.LoopCondition())
+ c.assertType(comp.LoopCondition(), types.BoolType)
+ c.check(comp.LoopStep())
+ c.assertType(comp.LoopStep(), accuType)
// Exit the loop's block scope before checking the result.
c.env = c.env.exitScope()
- c.check(comp.GetResult())
+ c.check(comp.Result())
// Exit the comprehension scope.
c.env = c.env.exitScope()
- c.setType(e, substitute(c.mappings, c.getType(comp.GetResult()), false))
+ c.setType(e, substitute(c.mappings, c.getType(comp.Result()), false))
}
// Checks compatibility of joined types, and returns the most general common type.
-func (c *checker) joinTypes(loc common.Location,
- previous *exprpb.Type,
- current *exprpb.Type) *exprpb.Type {
+func (c *checker) joinTypes(e ast.Expr, previous, current *types.Type) *types.Type {
if previous == nil {
return current
}
@@ -584,23 +568,23 @@ func (c *checker) joinTypes(loc common.Location,
return mostGeneral(previous, current)
}
if c.dynAggregateLiteralElementTypesEnabled() {
- return decls.Dyn
+ return types.DynType
}
- c.errors.typeMismatch(loc, previous, current)
- return decls.Error
+ c.errors.typeMismatch(e.ID(), c.location(e), previous, current)
+ return types.ErrorType
}
func (c *checker) dynAggregateLiteralElementTypesEnabled() bool {
return c.env.aggLitElemType == dynElementType
}
-func (c *checker) newTypeVar() *exprpb.Type {
+func (c *checker) newTypeVar() *types.Type {
id := c.freeTypeVarCounter
c.freeTypeVarCounter++
- return decls.NewTypeParamType(fmt.Sprintf("_var%d", id))
+ return types.NewTypeParamType(fmt.Sprintf("_var%d", id))
}
-func (c *checker) isAssignable(t1 *exprpb.Type, t2 *exprpb.Type) bool {
+func (c *checker) isAssignable(t1, t2 *types.Type) bool {
subs := isAssignable(c.mappings, t1, t2)
if subs != nil {
c.mappings = subs
@@ -610,7 +594,7 @@ func (c *checker) isAssignable(t1 *exprpb.Type, t2 *exprpb.Type) bool {
return false
}
-func (c *checker) isAssignableList(l1 []*exprpb.Type, l2 []*exprpb.Type) bool {
+func (c *checker) isAssignableList(l1, l2 []*types.Type) bool {
subs := isAssignableList(c.mappings, l1, l2)
if subs != nil {
c.mappings = subs
@@ -620,87 +604,114 @@ func (c *checker) isAssignableList(l1 []*exprpb.Type, l2 []*exprpb.Type) bool {
return false
}
-func (c *checker) lookupFieldType(l common.Location, messageType string, fieldName string) (*ref.FieldType, bool) {
- if _, found := c.env.provider.FindType(messageType); !found {
- // This should not happen, anyway, report an error.
- c.errors.unexpectedFailedResolution(l, messageType)
- return nil, false
- }
-
- if ft, found := c.env.provider.FindFieldType(messageType, fieldName); found {
- return ft, found
+func maybeUnwrapString(e ast.Expr) (string, bool) {
+ switch e.Kind() {
+ case ast.LiteralKind:
+ literal := e.AsLiteral()
+ switch v := literal.(type) {
+ case types.String:
+ return string(v), true
+ }
}
-
- c.errors.undefinedField(l, fieldName)
- return nil, false
+ return "", false
}
-func (c *checker) setType(e *exprpb.Expr, t *exprpb.Type) {
- if old, found := c.types[e.GetId()]; found && !proto.Equal(old, t) {
- c.errors.ReportError(c.location(e),
- "(Incompatible) Type already exists for expression: %v(%d) old:%v, new:%v", e, e.GetId(), old, t)
+func (c *checker) setType(e ast.Expr, t *types.Type) {
+ if old, found := c.TypeMap()[e.ID()]; found && !old.IsExactType(t) {
+ c.errors.incompatibleType(e.ID(), c.location(e), e, old, t)
return
}
- c.types[e.GetId()] = t
+ c.SetType(e.ID(), t)
}
-func (c *checker) getType(e *exprpb.Expr) *exprpb.Type {
- return c.types[e.GetId()]
+func (c *checker) getType(e ast.Expr) *types.Type {
+ return c.TypeMap()[e.ID()]
}
-func (c *checker) setReference(e *exprpb.Expr, r *exprpb.Reference) {
- if old, found := c.references[e.GetId()]; found && !proto.Equal(old, r) {
- c.errors.ReportError(c.location(e),
- "Reference already exists for expression: %v(%d) old:%v, new:%v", e, e.GetId(), old, r)
+func (c *checker) setReference(e ast.Expr, r *ast.ReferenceInfo) {
+ if old, found := c.ReferenceMap()[e.ID()]; found && !old.Equals(r) {
+ c.errors.referenceRedefinition(e.ID(), c.location(e), e, old, r)
return
}
- c.references[e.GetId()] = r
+ c.SetReference(e.ID(), r)
}
-func (c *checker) assertType(e *exprpb.Expr, t *exprpb.Type) {
+func (c *checker) assertType(e ast.Expr, t *types.Type) {
if !c.isAssignable(t, c.getType(e)) {
- c.errors.typeMismatch(c.location(e), t, c.getType(e))
+ c.errors.typeMismatch(e.ID(), c.location(e), t, c.getType(e))
}
}
type overloadResolution struct {
- Reference *exprpb.Reference
- Type *exprpb.Type
+ Type *types.Type
+ Reference *ast.ReferenceInfo
}
-func newResolution(checkedRef *exprpb.Reference, t *exprpb.Type) *overloadResolution {
+func newResolution(r *ast.ReferenceInfo, t *types.Type) *overloadResolution {
return &overloadResolution{
- Reference: checkedRef,
+ Reference: r,
Type: t,
}
}
-func (c *checker) location(e *exprpb.Expr) common.Location {
- return c.locationByID(e.GetId())
+func (c *checker) location(e ast.Expr) common.Location {
+ return c.locationByID(e.ID())
}
func (c *checker) locationByID(id int64) common.Location {
- positions := c.sourceInfo.GetPositions()
- var line = 1
- if offset, found := positions[id]; found {
- col := int(offset)
- for _, lineOffset := range c.sourceInfo.GetLineOffsets() {
- if lineOffset < offset {
- line++
- col = int(offset - lineOffset)
- } else {
- break
- }
- }
- return common.NewLocation(line, col)
+ return c.SourceInfo().GetStartLocation(id)
+}
+
+func (c *checker) lookupFieldType(exprID int64, structType, fieldName string) (*types.Type, bool) {
+ if _, found := c.env.provider.FindStructType(structType); !found {
+ // This should not happen, anyway, report an error.
+ c.errors.unexpectedFailedResolution(exprID, c.locationByID(exprID), structType)
+ return nil, false
+ }
+
+ if ft, found := c.env.provider.FindStructFieldType(structType, fieldName); found {
+ return ft.Type, found
}
- return common.NoLocation
+
+ c.errors.undefinedField(exprID, c.locationByID(exprID), fieldName)
+ return nil, false
}
-func newIdentReference(name string, value *exprpb.Constant) *exprpb.Reference {
- return &exprpb.Reference{Name: name, Value: value}
+func isWellKnownType(t *types.Type) bool {
+ switch t.Kind() {
+ case types.AnyKind, types.TimestampKind, types.DurationKind, types.DynKind, types.NullTypeKind:
+ return true
+ case types.BoolKind, types.BytesKind, types.DoubleKind, types.IntKind, types.StringKind, types.UintKind:
+ return t.IsAssignableType(types.NullType)
+ case types.ListKind:
+ return t.Parameters()[0] == types.DynType
+ case types.MapKind:
+ return t.Parameters()[0] == types.StringType && t.Parameters()[1] == types.DynType
+ }
+ return false
}
-func newFunctionReference(overloads ...string) *exprpb.Reference {
- return &exprpb.Reference{OverloadId: overloads}
+func getWellKnownTypeName(t *types.Type) string {
+ if name, found := wellKnownTypes[t.Kind()]; found {
+ return name
+ }
+ return ""
}
+
+var (
+ wellKnownTypes = map[types.Kind]string{
+ types.AnyKind: "google.protobuf.Any",
+ types.BoolKind: "google.protobuf.BoolValue",
+ types.BytesKind: "google.protobuf.BytesValue",
+ types.DoubleKind: "google.protobuf.DoubleValue",
+ types.DurationKind: "google.protobuf.Duration",
+ types.DynKind: "google.protobuf.Value",
+ types.IntKind: "google.protobuf.Int64Value",
+ types.ListKind: "google.protobuf.ListValue",
+ types.NullTypeKind: "google.protobuf.NullValue",
+ types.MapKind: "google.protobuf.Struct",
+ types.StringKind: "google.protobuf.StringValue",
+ types.TimestampKind: "google.protobuf.Timestamp",
+ types.UintKind: "google.protobuf.UInt64Value",
+ }
+)
diff --git a/vendor/github.com/google/cel-go/checker/cost.go b/vendor/github.com/google/cel-go/checker/cost.go
index 6cf8c4f..0424469 100644
--- a/vendor/github.com/google/cel-go/checker/cost.go
+++ b/vendor/github.com/google/cel-go/checker/cost.go
@@ -18,10 +18,10 @@ import (
"math"
"github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/overloads"
+ "github.com/google/cel-go/common/types"
"github.com/google/cel-go/parser"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
// WARNING: Any changes to cost calculations in this file require a corresponding change in interpreter/runtimecost.go
@@ -54,9 +54,9 @@ type AstNode interface {
// The first path element is a variable. All subsequent path elements are one of: field name, '@items', '@keys', '@values'.
Path() []string
// Type returns the deduced type of the AstNode.
- Type() *exprpb.Type
+ Type() *types.Type
// Expr returns the expression of the AstNode.
- Expr() *exprpb.Expr
+ Expr() ast.Expr
// ComputedSize returns a size estimate of the AstNode derived from information available in the CEL expression.
// For constants and inline list and map declarations, the exact size is returned. For concatenated list, strings
// and bytes, the size is derived from the size estimates of the operands. nil is returned if there is no
@@ -66,8 +66,8 @@ type AstNode interface {
type astNode struct {
path []string
- t *exprpb.Type
- expr *exprpb.Expr
+ t *types.Type
+ expr ast.Expr
derivedSize *SizeEstimate
}
@@ -75,11 +75,11 @@ func (e astNode) Path() []string {
return e.path
}
-func (e astNode) Type() *exprpb.Type {
+func (e astNode) Type() *types.Type {
return e.t
}
-func (e astNode) Expr() *exprpb.Expr {
+func (e astNode) Expr() ast.Expr {
return e.expr
}
@@ -88,29 +88,27 @@ func (e astNode) ComputedSize() *SizeEstimate {
return e.derivedSize
}
var v uint64
- switch ek := e.expr.GetExprKind().(type) {
- case *exprpb.Expr_ConstExpr:
- switch ck := ek.ConstExpr.GetConstantKind().(type) {
- case *exprpb.Constant_StringValue:
+ switch e.expr.Kind() {
+ case ast.LiteralKind:
+ switch ck := e.expr.AsLiteral().(type) {
+ case types.String:
// converting to runes here is an O(n) operation, but
// this is consistent with how size is computed at runtime,
// and how the language definition defines string size
- v = uint64(len([]rune(ck.StringValue)))
- case *exprpb.Constant_BytesValue:
- v = uint64(len(ck.BytesValue))
- case *exprpb.Constant_BoolValue, *exprpb.Constant_DoubleValue, *exprpb.Constant_DurationValue,
- *exprpb.Constant_Int64Value, *exprpb.Constant_TimestampValue, *exprpb.Constant_Uint64Value,
- *exprpb.Constant_NullValue:
+ v = uint64(len([]rune(ck)))
+ case types.Bytes:
+ v = uint64(len(ck))
+ case types.Bool, types.Double, types.Duration,
+ types.Int, types.Timestamp, types.Uint,
+ types.Null:
v = uint64(1)
default:
return nil
}
- case *exprpb.Expr_ListExpr:
- v = uint64(len(ek.ListExpr.GetElements()))
- case *exprpb.Expr_StructExpr:
- if ek.StructExpr.GetMessageName() == "" {
- v = uint64(len(ek.StructExpr.GetEntries()))
- }
+ case ast.ListKind:
+ v = uint64(e.expr.AsList().Size())
+ case ast.MapKind:
+ v = uint64(e.expr.AsMap().Size())
default:
return nil
}
@@ -228,7 +226,7 @@ func addUint64NoOverflow(x, y uint64) uint64 {
// multiplyUint64NoOverflow multiplies non-negative ints. If the result is exceeds math.MaxUint64, math.MaxUint64
// is returned.
func multiplyUint64NoOverflow(x, y uint64) uint64 {
- if x > 0 && y > 0 && x > math.MaxUint64/y {
+ if y != 0 && x > math.MaxUint64/y {
return math.MaxUint64
}
return x * y
@@ -240,7 +238,11 @@ func multiplyByCostFactor(x uint64, y float64) uint64 {
if xFloat > 0 && y > 0 && xFloat > math.MaxUint64/y {
return math.MaxUint64
}
- return uint64(math.Ceil(xFloat * y))
+ ceil := math.Ceil(xFloat * y)
+ if ceil >= doubleTwoTo64 {
+ return math.MaxUint64
+ }
+ return uint64(ceil)
}
var (
@@ -258,16 +260,19 @@ type coster struct {
// iterRanges tracks the iterRange of each iterVar.
iterRanges iterRangeScopes
// computedSizes tracks the computed sizes of call results.
- computedSizes map[int64]SizeEstimate
- checkedExpr *exprpb.CheckedExpr
- estimator CostEstimator
+ computedSizes map[int64]SizeEstimate
+ checkedAST *ast.AST
+ estimator CostEstimator
+ overloadEstimators map[string]FunctionEstimator
+ // presenceTestCost will either be a zero or one based on whether has() macros count against cost computations.
+ presenceTestCost CostEstimate
}
// Use a stack of iterVar -> iterRange Expr Ids to handle shadowed variable names.
type iterRangeScopes map[string][]int64
-func (vs iterRangeScopes) push(varName string, expr *exprpb.Expr) {
- vs[varName] = append(vs[varName], expr.GetId())
+func (vs iterRangeScopes) push(varName string, expr ast.Expr) {
+ vs[varName] = append(vs[varName], expr.ID())
}
func (vs iterRangeScopes) pop(varName string) {
@@ -283,37 +288,78 @@ func (vs iterRangeScopes) peek(varName string) (int64, bool) {
return 0, false
}
+// CostOption configures flags which affect cost computations.
+type CostOption func(*coster) error
+
+// PresenceTestHasCost determines whether presence testing has a cost of one or zero.
+//
+// Defaults to presence test has a cost of one.
+func PresenceTestHasCost(hasCost bool) CostOption {
+ return func(c *coster) error {
+ if hasCost {
+ c.presenceTestCost = selectAndIdentCost
+ return nil
+ }
+ c.presenceTestCost = CostEstimate{Min: 0, Max: 0}
+ return nil
+ }
+}
+
+// FunctionEstimator provides a CallEstimate given the target and arguments for a specific function, overload pair.
+type FunctionEstimator func(estimator CostEstimator, target *AstNode, args []AstNode) *CallEstimate
+
+// OverloadCostEstimate binds a FunctionCoster to a specific function overload ID.
+//
+// When a OverloadCostEstimate is provided, it will override the cost calculation of the CostEstimator provided to
+// the Cost() call.
+func OverloadCostEstimate(overloadID string, functionCoster FunctionEstimator) CostOption {
+ return func(c *coster) error {
+ c.overloadEstimators[overloadID] = functionCoster
+ return nil
+ }
+}
+
// Cost estimates the cost of the parsed and type checked CEL expression.
-func Cost(checker *exprpb.CheckedExpr, estimator CostEstimator) CostEstimate {
- c := coster{
- checkedExpr: checker,
- estimator: estimator,
- exprPath: map[int64][]string{},
- iterRanges: map[string][]int64{},
- computedSizes: map[int64]SizeEstimate{},
+func Cost(checked *ast.AST, estimator CostEstimator, opts ...CostOption) (CostEstimate, error) {
+ c := &coster{
+ checkedAST: checked,
+ estimator: estimator,
+ overloadEstimators: map[string]FunctionEstimator{},
+ exprPath: map[int64][]string{},
+ iterRanges: map[string][]int64{},
+ computedSizes: map[int64]SizeEstimate{},
+ presenceTestCost: CostEstimate{Min: 1, Max: 1},
+ }
+ for _, opt := range opts {
+ err := opt(c)
+ if err != nil {
+ return CostEstimate{}, err
+ }
}
- return c.cost(checker.GetExpr())
+ return c.cost(checked.Expr()), nil
}
-func (c *coster) cost(e *exprpb.Expr) CostEstimate {
+func (c *coster) cost(e ast.Expr) CostEstimate {
if e == nil {
return CostEstimate{}
}
var cost CostEstimate
- switch e.GetExprKind().(type) {
- case *exprpb.Expr_ConstExpr:
+ switch e.Kind() {
+ case ast.LiteralKind:
cost = constCost
- case *exprpb.Expr_IdentExpr:
+ case ast.IdentKind:
cost = c.costIdent(e)
- case *exprpb.Expr_SelectExpr:
+ case ast.SelectKind:
cost = c.costSelect(e)
- case *exprpb.Expr_CallExpr:
+ case ast.CallKind:
cost = c.costCall(e)
- case *exprpb.Expr_ListExpr:
+ case ast.ListKind:
cost = c.costCreateList(e)
- case *exprpb.Expr_StructExpr:
+ case ast.MapKind:
+ cost = c.costCreateMap(e)
+ case ast.StructKind:
cost = c.costCreateStruct(e)
- case *exprpb.Expr_ComprehensionExpr:
+ case ast.ComprehensionKind:
cost = c.costComprehension(e)
default:
return CostEstimate{}
@@ -321,52 +367,51 @@ func (c *coster) cost(e *exprpb.Expr) CostEstimate {
return cost
}
-func (c *coster) costIdent(e *exprpb.Expr) CostEstimate {
- identExpr := e.GetIdentExpr()
-
+func (c *coster) costIdent(e ast.Expr) CostEstimate {
+ identName := e.AsIdent()
// build and track the field path
- if iterRange, ok := c.iterRanges.peek(identExpr.GetName()); ok {
- switch c.checkedExpr.TypeMap[iterRange].GetTypeKind().(type) {
- case *exprpb.Type_ListType_:
+ if iterRange, ok := c.iterRanges.peek(identName); ok {
+ switch c.checkedAST.GetType(iterRange).Kind() {
+ case types.ListKind:
c.addPath(e, append(c.exprPath[iterRange], "@items"))
- case *exprpb.Type_MapType_:
+ case types.MapKind:
c.addPath(e, append(c.exprPath[iterRange], "@keys"))
}
} else {
- c.addPath(e, []string{identExpr.GetName()})
+ c.addPath(e, []string{identName})
}
return selectAndIdentCost
}
-func (c *coster) costSelect(e *exprpb.Expr) CostEstimate {
- sel := e.GetSelectExpr()
+func (c *coster) costSelect(e ast.Expr) CostEstimate {
+ sel := e.AsSelect()
var sum CostEstimate
- if sel.GetTestOnly() {
+ if sel.IsTestOnly() {
// recurse, but do not add any cost
// this is equivalent to how evalTestOnly increments the runtime cost counter
// but does not add any additional cost for the qualifier, except here we do
// the reverse (ident adds cost)
- sum = sum.Add(c.cost(sel.GetOperand()))
+ sum = sum.Add(c.presenceTestCost)
+ sum = sum.Add(c.cost(sel.Operand()))
return sum
}
- sum = sum.Add(c.cost(sel.GetOperand()))
- targetType := c.getType(sel.GetOperand())
- switch kindOf(targetType) {
- case kindMap, kindObject, kindTypeParam:
+ sum = sum.Add(c.cost(sel.Operand()))
+ targetType := c.getType(sel.Operand())
+ switch targetType.Kind() {
+ case types.MapKind, types.StructKind, types.TypeParamKind:
sum = sum.Add(selectAndIdentCost)
}
// build and track the field path
- c.addPath(e, append(c.getPath(sel.GetOperand()), sel.GetField()))
+ c.addPath(e, append(c.getPath(sel.Operand()), sel.FieldName()))
return sum
}
-func (c *coster) costCall(e *exprpb.Expr) CostEstimate {
- call := e.GetCallExpr()
- target := call.GetTarget()
- args := call.GetArgs()
+func (c *coster) costCall(e ast.Expr) CostEstimate {
+ call := e.AsCall()
+ args := call.Args()
var sum CostEstimate
@@ -377,22 +422,20 @@ func (c *coster) costCall(e *exprpb.Expr) CostEstimate {
argTypes[i] = c.newAstNode(arg)
}
- ref := c.checkedExpr.ReferenceMap[e.GetId()]
- if ref == nil || len(ref.GetOverloadId()) == 0 {
+ overloadIDs := c.checkedAST.GetOverloadIDs(e.ID())
+ if len(overloadIDs) == 0 {
return CostEstimate{}
}
var targetType AstNode
- if target != nil {
- if call.Target != nil {
- sum = sum.Add(c.cost(call.GetTarget()))
- targetType = c.newAstNode(call.GetTarget())
- }
+ if call.IsMemberFunction() {
+ sum = sum.Add(c.cost(call.Target()))
+ targetType = c.newAstNode(call.Target())
}
// Pick a cost estimate range that covers all the overload cost estimation ranges
fnCost := CostEstimate{Min: uint64(math.MaxUint64), Max: 0}
var resultSize *SizeEstimate
- for _, overload := range ref.GetOverloadId() {
- overloadCost := c.functionCost(call.GetFunction(), overload, &targetType, argTypes, argCosts)
+ for _, overload := range overloadIDs {
+ overloadCost := c.functionCost(call.FunctionName(), overload, &targetType, argTypes, argCosts)
fnCost = fnCost.Union(overloadCost.CostEstimate)
if overloadCost.ResultSize != nil {
if resultSize == nil {
@@ -415,62 +458,57 @@ func (c *coster) costCall(e *exprpb.Expr) CostEstimate {
}
}
if resultSize != nil {
- c.computedSizes[e.GetId()] = *resultSize
+ c.computedSizes[e.ID()] = *resultSize
}
return sum.Add(fnCost)
}
-func (c *coster) costCreateList(e *exprpb.Expr) CostEstimate {
- create := e.GetListExpr()
+func (c *coster) costCreateList(e ast.Expr) CostEstimate {
+ create := e.AsList()
var sum CostEstimate
- for _, e := range create.GetElements() {
+ for _, e := range create.Elements() {
sum = sum.Add(c.cost(e))
}
return sum.Add(createListBaseCost)
}
-func (c *coster) costCreateStruct(e *exprpb.Expr) CostEstimate {
- str := e.GetStructExpr()
- if str.MessageName != "" {
- return c.costCreateMessage(e)
- }
- return c.costCreateMap(e)
-}
-
-func (c *coster) costCreateMap(e *exprpb.Expr) CostEstimate {
- mapVal := e.GetStructExpr()
+func (c *coster) costCreateMap(e ast.Expr) CostEstimate {
+ mapVal := e.AsMap()
var sum CostEstimate
- for _, ent := range mapVal.GetEntries() {
- key := ent.GetMapKey()
- sum = sum.Add(c.cost(key))
-
- sum = sum.Add(c.cost(ent.GetValue()))
+ for _, ent := range mapVal.Entries() {
+ entry := ent.AsMapEntry()
+ sum = sum.Add(c.cost(entry.Key()))
+ sum = sum.Add(c.cost(entry.Value()))
}
return sum.Add(createMapBaseCost)
}
-func (c *coster) costCreateMessage(e *exprpb.Expr) CostEstimate {
- msgVal := e.GetStructExpr()
+func (c *coster) costCreateStruct(e ast.Expr) CostEstimate {
+ msgVal := e.AsStruct()
var sum CostEstimate
- for _, ent := range msgVal.GetEntries() {
- sum = sum.Add(c.cost(ent.GetValue()))
+ for _, ent := range msgVal.Fields() {
+ field := ent.AsStructField()
+ sum = sum.Add(c.cost(field.Value()))
}
return sum.Add(createMessageBaseCost)
}
-func (c *coster) costComprehension(e *exprpb.Expr) CostEstimate {
- comp := e.GetComprehensionExpr()
+func (c *coster) costComprehension(e ast.Expr) CostEstimate {
+ comp := e.AsComprehension()
var sum CostEstimate
- sum = sum.Add(c.cost(comp.GetIterRange()))
- sum = sum.Add(c.cost(comp.GetAccuInit()))
+ sum = sum.Add(c.cost(comp.IterRange()))
+ sum = sum.Add(c.cost(comp.AccuInit()))
// Track the iterRange of each IterVar for field path construction
- c.iterRanges.push(comp.GetIterVar(), comp.GetIterRange())
- loopCost := c.cost(comp.GetLoopCondition())
- stepCost := c.cost(comp.GetLoopStep())
- c.iterRanges.pop(comp.GetIterVar())
- sum = sum.Add(c.cost(comp.Result))
- rangeCnt := c.sizeEstimate(c.newAstNode(comp.GetIterRange()))
+ c.iterRanges.push(comp.IterVar(), comp.IterRange())
+ loopCost := c.cost(comp.LoopCondition())
+ stepCost := c.cost(comp.LoopStep())
+ c.iterRanges.pop(comp.IterVar())
+ sum = sum.Add(c.cost(comp.Result()))
+ rangeCnt := c.sizeEstimate(c.newAstNode(comp.IterRange()))
+
+ c.computedSizes[e.ID()] = rangeCnt
+
rangeCost := rangeCnt.MultiplyByCost(stepCost.Add(loopCost))
sum = sum.Add(rangeCost)
@@ -504,17 +542,44 @@ func (c *coster) functionCost(function, overloadID string, target *AstNode, args
}
return sum
}
-
+ if len(c.overloadEstimators) != 0 {
+ if estimator, found := c.overloadEstimators[overloadID]; found {
+ if est := estimator(c.estimator, target, args); est != nil {
+ callEst := *est
+ return CallEstimate{CostEstimate: callEst.Add(argCostSum()), ResultSize: est.ResultSize}
+ }
+ }
+ }
if est := c.estimator.EstimateCallCost(function, overloadID, target, args); est != nil {
callEst := *est
- return CallEstimate{CostEstimate: callEst.Add(argCostSum())}
+ return CallEstimate{CostEstimate: callEst.Add(argCostSum()), ResultSize: est.ResultSize}
}
switch overloadID {
// O(n) functions
- case overloads.StartsWithString, overloads.EndsWithString, overloads.StringToBytes, overloads.BytesToString, overloads.ExtQuoteString, overloads.ExtFormatString:
- if overloadID == overloads.ExtFormatString {
+ case overloads.ExtFormatString:
+ if target != nil {
+ // ResultSize not calculated because we can't bound the max size.
return CallEstimate{CostEstimate: c.sizeEstimate(*target).MultiplyByCostFactor(common.StringTraversalCostFactor).Add(argCostSum())}
}
+ case overloads.StringToBytes:
+ if len(args) == 1 {
+ sz := c.sizeEstimate(args[0])
+ // ResultSize max is when each char converts to 4 bytes.
+ return CallEstimate{CostEstimate: sz.MultiplyByCostFactor(common.StringTraversalCostFactor).Add(argCostSum()), ResultSize: &SizeEstimate{Min: sz.Min, Max: sz.Max * 4}}
+ }
+ case overloads.BytesToString:
+ if len(args) == 1 {
+ sz := c.sizeEstimate(args[0])
+ // ResultSize min is when 4 bytes convert to 1 char.
+ return CallEstimate{CostEstimate: sz.MultiplyByCostFactor(common.StringTraversalCostFactor).Add(argCostSum()), ResultSize: &SizeEstimate{Min: sz.Min / 4, Max: sz.Max}}
+ }
+ case overloads.ExtQuoteString:
+ if len(args) == 1 {
+ sz := c.sizeEstimate(args[0])
+ // ResultSize max is when each char is escaped. 2 quote chars always added.
+ return CallEstimate{CostEstimate: sz.MultiplyByCostFactor(common.StringTraversalCostFactor).Add(argCostSum()), ResultSize: &SizeEstimate{Min: sz.Min + 2, Max: sz.Max*2 + 2}}
+ }
+ case overloads.StartsWithString, overloads.EndsWithString:
if len(args) == 1 {
return CallEstimate{CostEstimate: c.sizeEstimate(args[0]).MultiplyByCostFactor(common.StringTraversalCostFactor).Add(argCostSum())}
}
@@ -595,44 +660,46 @@ func (c *coster) functionCost(function, overloadID string, target *AstNode, args
return CallEstimate{CostEstimate: CostEstimate{Min: 1, Max: 1}.Add(argCostSum())}
}
-func (c *coster) getType(e *exprpb.Expr) *exprpb.Type {
- return c.checkedExpr.TypeMap[e.GetId()]
+func (c *coster) getType(e ast.Expr) *types.Type {
+ return c.checkedAST.GetType(e.ID())
}
-func (c *coster) getPath(e *exprpb.Expr) []string {
- return c.exprPath[e.GetId()]
+func (c *coster) getPath(e ast.Expr) []string {
+ return c.exprPath[e.ID()]
}
-func (c *coster) addPath(e *exprpb.Expr, path []string) {
- c.exprPath[e.GetId()] = path
+func (c *coster) addPath(e ast.Expr, path []string) {
+ c.exprPath[e.ID()] = path
}
-func (c *coster) newAstNode(e *exprpb.Expr) *astNode {
+func (c *coster) newAstNode(e ast.Expr) *astNode {
path := c.getPath(e)
if len(path) > 0 && path[0] == parser.AccumulatorName {
// only provide paths to root vars; omit accumulator vars
path = nil
}
var derivedSize *SizeEstimate
- if size, ok := c.computedSizes[e.GetId()]; ok {
+ if size, ok := c.computedSizes[e.ID()]; ok {
derivedSize = &size
}
- return &astNode{path: path, t: c.getType(e), expr: e, derivedSize: derivedSize}
+ return &astNode{
+ path: path,
+ t: c.getType(e),
+ expr: e,
+ derivedSize: derivedSize}
}
// isScalar returns true if the given type is known to be of a constant size at
// compile time. isScalar will return false for strings (they are variable-width)
// in addition to protobuf.Any and protobuf.Value (their size is not knowable at compile time).
-func isScalar(t *exprpb.Type) bool {
- switch kindOf(t) {
- case kindPrimitive:
- if t.GetPrimitive() != exprpb.Type_STRING && t.GetPrimitive() != exprpb.Type_BYTES {
- return true
- }
- case kindWellKnown:
- if t.GetWellKnown() == exprpb.Type_DURATION || t.GetWellKnown() == exprpb.Type_TIMESTAMP {
- return true
- }
+func isScalar(t *types.Type) bool {
+ switch t.Kind() {
+ case types.BoolKind, types.DoubleKind, types.DurationKind, types.IntKind, types.TimestampKind, types.UintKind:
+ return true
}
return false
}
+
+var (
+ doubleTwoTo64 = math.Ldexp(1.0, 64)
+)
diff --git a/vendor/github.com/google/cel-go/checker/decls/BUILD.bazel b/vendor/github.com/google/cel-go/checker/decls/BUILD.bazel
index 5a24f1d..a6b0be2 100644
--- a/vendor/github.com/google/cel-go/checker/decls/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/checker/decls/BUILD.bazel
@@ -9,11 +9,10 @@ go_library(
name = "go_default_library",
srcs = [
"decls.go",
- "scopes.go",
],
importpath = "github.com/google/cel-go/checker/decls",
deps = [
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//types/known/emptypb:go_default_library",
"@org_golang_google_protobuf//types/known/structpb:go_default_library",
],
diff --git a/vendor/github.com/google/cel-go/checker/decls/decls.go b/vendor/github.com/google/cel-go/checker/decls/decls.go
index 0d91bef..c0e5de4 100644
--- a/vendor/github.com/google/cel-go/checker/decls/decls.go
+++ b/vendor/github.com/google/cel-go/checker/decls/decls.go
@@ -67,7 +67,7 @@ func NewAbstractType(name string, paramTypes ...*exprpb.Type) *exprpb.Type {
// NewOptionalType constructs an abstract type indicating that the parameterized type
// may be contained within the object.
func NewOptionalType(paramType *exprpb.Type) *exprpb.Type {
- return NewAbstractType("optional", paramType)
+ return NewAbstractType("optional_type", paramType)
}
// NewFunctionType creates a function invocation contract, typically only used
diff --git a/vendor/github.com/google/cel-go/checker/env.go b/vendor/github.com/google/cel-go/checker/env.go
index c7eeb04..d5ac050 100644
--- a/vendor/github.com/google/cel-go/checker/env.go
+++ b/vendor/github.com/google/cel-go/checker/env.go
@@ -18,17 +18,11 @@ import (
"fmt"
"strings"
- "google.golang.org/protobuf/proto"
-
- "github.com/google/cel-go/checker/decls"
"github.com/google/cel-go/common/containers"
+ "github.com/google/cel-go/common/decls"
"github.com/google/cel-go/common/overloads"
"github.com/google/cel-go/common/types"
- "github.com/google/cel-go/common/types/pb"
- "github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/parser"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
type aggregateLiteralElementType int
@@ -76,15 +70,15 @@ var (
// which can be used to assist with type-checking.
type Env struct {
container *containers.Container
- provider ref.TypeProvider
- declarations *decls.Scopes
+ provider types.Provider
+ declarations *Scopes
aggLitElemType aggregateLiteralElementType
filteredOverloadIDs map[string]struct{}
}
// NewEnv returns a new *Env with the given parameters.
-func NewEnv(container *containers.Container, provider ref.TypeProvider, opts ...Option) (*Env, error) {
- declarations := decls.NewScopes()
+func NewEnv(container *containers.Container, provider types.Provider, opts ...Option) (*Env, error) {
+ declarations := newScopes()
declarations.Push()
envOptions := &options{}
@@ -113,24 +107,31 @@ func NewEnv(container *containers.Container, provider ref.TypeProvider, opts ...
}, nil
}
-// Add adds new Decl protos to the Env.
-// Returns an error for identifier redeclarations.
-func (e *Env) Add(decls ...*exprpb.Decl) error {
+// AddIdents configures the checker with a list of variable declarations.
+//
+// If there are overlapping declarations, the method will error.
+func (e *Env) AddIdents(declarations ...*decls.VariableDecl) error {
errMsgs := make([]errorMsg, 0)
- for _, decl := range decls {
- switch decl.DeclKind.(type) {
- case *exprpb.Decl_Ident:
- errMsgs = append(errMsgs, e.addIdent(sanitizeIdent(decl)))
- case *exprpb.Decl_Function:
- errMsgs = append(errMsgs, e.setFunction(sanitizeFunction(decl))...)
- }
+ for _, d := range declarations {
+ errMsgs = append(errMsgs, e.addIdent(d))
+ }
+ return formatError(errMsgs)
+}
+
+// AddFunctions configures the checker with a list of function declarations.
+//
+// If there are overlapping declarations, the method will error.
+func (e *Env) AddFunctions(declarations ...*decls.FunctionDecl) error {
+ errMsgs := make([]errorMsg, 0)
+ for _, d := range declarations {
+ errMsgs = append(errMsgs, e.setFunction(d)...)
}
return formatError(errMsgs)
}
// LookupIdent returns a Decl proto for typeName as an identifier in the Env.
// Returns nil if no such identifier is found in the Env.
-func (e *Env) LookupIdent(name string) *exprpb.Decl {
+func (e *Env) LookupIdent(name string) *decls.VariableDecl {
for _, candidate := range e.container.ResolveCandidateNames(name) {
if ident := e.declarations.FindIdent(candidate); ident != nil {
return ident
@@ -139,20 +140,24 @@ func (e *Env) LookupIdent(name string) *exprpb.Decl {
// Next try to import the name as a reference to a message type. If found,
// the declaration is added to the outest (global) scope of the
// environment, so next time we can access it faster.
- if t, found := e.provider.FindType(candidate); found {
- decl := decls.NewVar(candidate, t)
+ if t, found := e.provider.FindStructType(candidate); found {
+ decl := decls.NewVariable(candidate, t)
e.declarations.AddIdent(decl)
return decl
}
+ if i, found := e.provider.FindIdent(candidate); found {
+ if t, ok := i.(*types.Type); ok {
+ decl := decls.NewVariable(candidate, types.NewTypeTypeWithParam(t))
+ e.declarations.AddIdent(decl)
+ return decl
+ }
+ }
+
// Next try to import this as an enum value by splitting the name in a type prefix and
// the enum inside.
if enumValue := e.provider.EnumValue(candidate); enumValue.Type() != types.ErrType {
- decl := decls.NewIdent(candidate,
- decls.Int,
- &exprpb.Constant{
- ConstantKind: &exprpb.Constant_Int64Value{
- Int64Value: int64(enumValue.(types.Int))}})
+ decl := decls.NewConstant(candidate, types.IntType, enumValue)
e.declarations.AddIdent(decl)
return decl
}
@@ -162,7 +167,7 @@ func (e *Env) LookupIdent(name string) *exprpb.Decl {
// LookupFunction returns a Decl proto for typeName as a function in env.
// Returns nil if no such function is found in env.
-func (e *Env) LookupFunction(name string) *exprpb.Decl {
+func (e *Env) LookupFunction(name string) *decls.FunctionDecl {
for _, candidate := range e.container.ResolveCandidateNames(name) {
if fn := e.declarations.FindFunction(candidate); fn != nil {
return fn
@@ -171,88 +176,46 @@ func (e *Env) LookupFunction(name string) *exprpb.Decl {
return nil
}
-// addOverload adds overload to function declaration f.
-// Returns one or more errorMsg values if the overload overlaps with an existing overload or macro.
-func (e *Env) addOverload(f *exprpb.Decl, overload *exprpb.Decl_FunctionDecl_Overload) []errorMsg {
- errMsgs := make([]errorMsg, 0)
- function := f.GetFunction()
- emptyMappings := newMapping()
- overloadFunction := decls.NewFunctionType(overload.GetResultType(),
- overload.GetParams()...)
- overloadErased := substitute(emptyMappings, overloadFunction, true)
- for _, existing := range function.GetOverloads() {
- existingFunction := decls.NewFunctionType(existing.GetResultType(), existing.GetParams()...)
- existingErased := substitute(emptyMappings, existingFunction, true)
- overlap := isAssignable(emptyMappings, overloadErased, existingErased) != nil ||
- isAssignable(emptyMappings, existingErased, overloadErased) != nil
- if overlap &&
- overload.GetIsInstanceFunction() == existing.GetIsInstanceFunction() {
- errMsgs = append(errMsgs,
- overlappingOverloadError(f.Name,
- overload.GetOverloadId(), overloadFunction,
- existing.GetOverloadId(), existingFunction))
- }
- }
-
- for _, macro := range parser.AllMacros {
- if macro.Function() == f.Name &&
- macro.IsReceiverStyle() == overload.GetIsInstanceFunction() &&
- macro.ArgCount() == len(overload.GetParams()) {
- errMsgs = append(errMsgs, overlappingMacroError(f.Name, macro.ArgCount()))
- }
- }
- if len(errMsgs) > 0 {
- return errMsgs
- }
- function.Overloads = append(function.GetOverloads(), overload)
- return errMsgs
-}
-
// setFunction adds the function Decl to the Env.
// Adds a function decl if one doesn't already exist, then adds all overloads from the Decl.
// If overload overlaps with an existing overload, adds to the errors in the Env instead.
-func (e *Env) setFunction(decl *exprpb.Decl) []errorMsg {
- errorMsgs := make([]errorMsg, 0)
- overloads := decl.GetFunction().GetOverloads()
- current := e.declarations.FindFunction(decl.Name)
- if current == nil {
- //Add the function declaration without overloads and check the overloads below.
- current = decls.NewFunction(decl.Name)
- } else {
- existingOverloads := map[string]*exprpb.Decl_FunctionDecl_Overload{}
- for _, overload := range current.GetFunction().GetOverloads() {
- existingOverloads[overload.GetOverloadId()] = overload
+func (e *Env) setFunction(fn *decls.FunctionDecl) []errorMsg {
+ errMsgs := make([]errorMsg, 0)
+ current := e.declarations.FindFunction(fn.Name())
+ if current != nil {
+ var err error
+ current, err = current.Merge(fn)
+ if err != nil {
+ return append(errMsgs, errorMsg(err.Error()))
}
- newOverloads := []*exprpb.Decl_FunctionDecl_Overload{}
- for _, overload := range overloads {
- existing, found := existingOverloads[overload.GetOverloadId()]
- if !found || !proto.Equal(existing, overload) {
- newOverloads = append(newOverloads, overload)
+ } else {
+ current = fn
+ }
+ for _, overload := range current.OverloadDecls() {
+ for _, macro := range parser.AllMacros {
+ if macro.Function() == current.Name() &&
+ macro.IsReceiverStyle() == overload.IsMemberFunction() &&
+ macro.ArgCount() == len(overload.ArgTypes()) {
+ errMsgs = append(errMsgs, overlappingMacroError(current.Name(), macro.ArgCount()))
}
}
- overloads = newOverloads
- if len(newOverloads) == 0 {
- return errorMsgs
+ if len(errMsgs) > 0 {
+ return errMsgs
}
- // Copy on write since we don't know where this original definition came from.
- current = proto.Clone(current).(*exprpb.Decl)
}
e.declarations.SetFunction(current)
- for _, overload := range overloads {
- errorMsgs = append(errorMsgs, e.addOverload(current, overload)...)
- }
- return errorMsgs
+ return errMsgs
}
// addIdent adds the Decl to the declarations in the Env.
// Returns a non-empty errorMsg if the identifier is already declared in the scope.
-func (e *Env) addIdent(decl *exprpb.Decl) errorMsg {
- current := e.declarations.FindIdentInScope(decl.Name)
+func (e *Env) addIdent(decl *decls.VariableDecl) errorMsg {
+ current := e.declarations.FindIdentInScope(decl.Name())
if current != nil {
- if proto.Equal(current, decl) {
+ if current.DeclarationIsEquivalent(decl) {
return ""
}
- return overlappingIdentifierError(decl.Name)
+ return overlappingIdentifierError(decl.Name())
}
e.declarations.AddIdent(decl)
return ""
@@ -264,86 +227,9 @@ func (e *Env) isOverloadDisabled(overloadID string) bool {
return found
}
-// sanitizeFunction replaces well-known types referenced by message name with their equivalent
-// CEL built-in type instances.
-func sanitizeFunction(decl *exprpb.Decl) *exprpb.Decl {
- fn := decl.GetFunction()
- // Determine whether the declaration requires replacements from proto-based message type
- // references to well-known CEL type references.
- var needsSanitizing bool
- for _, o := range fn.GetOverloads() {
- if isObjectWellKnownType(o.GetResultType()) {
- needsSanitizing = true
- break
- }
- for _, p := range o.GetParams() {
- if isObjectWellKnownType(p) {
- needsSanitizing = true
- break
- }
- }
- }
-
- // Early return if the declaration requires no modification.
- if !needsSanitizing {
- return decl
- }
-
- // Sanitize all of the overloads if any overload requires an update to its type references.
- overloads := make([]*exprpb.Decl_FunctionDecl_Overload, len(fn.GetOverloads()))
- for i, o := range fn.GetOverloads() {
- rt := o.GetResultType()
- if isObjectWellKnownType(rt) {
- rt = getObjectWellKnownType(rt)
- }
- params := make([]*exprpb.Type, len(o.GetParams()))
- copy(params, o.GetParams())
- for j, p := range params {
- if isObjectWellKnownType(p) {
- params[j] = getObjectWellKnownType(p)
- }
- }
- // If sanitized, replace the overload definition.
- if o.IsInstanceFunction {
- overloads[i] =
- decls.NewInstanceOverload(o.GetOverloadId(), params, rt)
- } else {
- overloads[i] =
- decls.NewOverload(o.GetOverloadId(), params, rt)
- }
- }
- return decls.NewFunction(decl.GetName(), overloads...)
-}
-
-// sanitizeIdent replaces the identifier's well-known types referenced by message name with
-// references to CEL built-in type instances.
-func sanitizeIdent(decl *exprpb.Decl) *exprpb.Decl {
- id := decl.GetIdent()
- t := id.GetType()
- if !isObjectWellKnownType(t) {
- return decl
- }
- return decls.NewIdent(decl.GetName(), getObjectWellKnownType(t), id.GetValue())
-}
-
-// isObjectWellKnownType returns true if the input type is an OBJECT type with a message name
-// that corresponds the message name of a built-in CEL type.
-func isObjectWellKnownType(t *exprpb.Type) bool {
- if kindOf(t) != kindObject {
- return false
- }
- _, found := pb.CheckedWellKnowns[t.GetMessageType()]
- return found
-}
-
-// getObjectWellKnownType returns the built-in CEL type declaration for input type's message name.
-func getObjectWellKnownType(t *exprpb.Type) *exprpb.Type {
- return pb.CheckedWellKnowns[t.GetMessageType()]
-}
-
// validatedDeclarations returns a reference to the validated variable and function declaration scope stack.
// must be copied before use.
-func (e *Env) validatedDeclarations() *decls.Scopes {
+func (e *Env) validatedDeclarations() *Scopes {
return e.declarations
}
@@ -377,19 +263,6 @@ func overlappingIdentifierError(name string) errorMsg {
return errorMsg(fmt.Sprintf("overlapping identifier for name '%s'", name))
}
-func overlappingOverloadError(name string,
- overloadID1 string, f1 *exprpb.Type,
- overloadID2 string, f2 *exprpb.Type) errorMsg {
- return errorMsg(fmt.Sprintf(
- "overlapping overload for name '%s' (type '%s' with overloadId: '%s' "+
- "cannot be distinguished from '%s' with overloadId: '%s')",
- name,
- FormatCheckedType(f1),
- overloadID1,
- FormatCheckedType(f2),
- overloadID2))
-}
-
func overlappingMacroError(name string, argCount int) errorMsg {
return errorMsg(fmt.Sprintf(
"overlapping macro for name '%s' with %d args", name, argCount))
diff --git a/vendor/github.com/google/cel-go/checker/errors.go b/vendor/github.com/google/cel-go/checker/errors.go
index 0014f9a..8b3bf0b 100644
--- a/vendor/github.com/google/cel-go/checker/errors.go
+++ b/vendor/github.com/google/cel-go/checker/errors.go
@@ -16,81 +16,73 @@ package checker
import (
"github.com/google/cel-go/common"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/types"
)
// typeErrors is a specialization of Errors.
type typeErrors struct {
- *common.Errors
+ errs *common.Errors
+}
+
+func (e *typeErrors) fieldTypeMismatch(id int64, l common.Location, name string, field, value *types.Type) {
+ e.errs.ReportErrorAtID(id, l, "expected type of field '%s' is '%s' but provided type is '%s'",
+ name, FormatCELType(field), FormatCELType(value))
+}
+
+func (e *typeErrors) incompatibleType(id int64, l common.Location, ex ast.Expr, prev, next *types.Type) {
+ e.errs.ReportErrorAtID(id, l,
+ "incompatible type already exists for expression: %v(%d) old:%v, new:%v", ex, ex.ID(), prev, next)
+}
+
+func (e *typeErrors) noMatchingOverload(id int64, l common.Location, name string, args []*types.Type, isInstance bool) {
+ signature := formatFunctionDeclType(nil, args, isInstance)
+ e.errs.ReportErrorAtID(id, l, "found no matching overload for '%s' applied to '%s'", name, signature)
}
-func (e *typeErrors) undeclaredReference(l common.Location, container string, name string) {
- e.ReportError(l, "undeclared reference to '%s' (in container '%s')", name, container)
+func (e *typeErrors) notAComprehensionRange(id int64, l common.Location, t *types.Type) {
+ e.errs.ReportErrorAtID(id, l, "expression of type '%s' cannot be range of a comprehension (must be list, map, or dynamic)",
+ FormatCELType(t))
}
-func (e *typeErrors) typeDoesNotSupportFieldSelection(l common.Location, t *exprpb.Type) {
- e.ReportError(l, "type '%s' does not support field selection", t)
+func (e *typeErrors) notAnOptionalFieldSelection(id int64, l common.Location, field ast.Expr) {
+ e.errs.ReportErrorAtID(id, l, "unsupported optional field selection: %v", field)
}
-func (e *typeErrors) undefinedField(l common.Location, field string) {
- e.ReportError(l, "undefined field '%s'", field)
+func (e *typeErrors) notAType(id int64, l common.Location, typeName string) {
+ e.errs.ReportErrorAtID(id, l, "'%s' is not a type", typeName)
}
-func (e *typeErrors) noMatchingOverload(l common.Location, name string, args []*exprpb.Type, isInstance bool) {
- signature := formatFunction(nil, args, isInstance)
- e.ReportError(l, "found no matching overload for '%s' applied to '%s'", name, signature)
+func (e *typeErrors) notAMessageType(id int64, l common.Location, typeName string) {
+ e.errs.ReportErrorAtID(id, l, "'%s' is not a message type", typeName)
}
-func (e *typeErrors) notAType(l common.Location, t *exprpb.Type) {
- e.ReportError(l, "'%s(%v)' is not a type", FormatCheckedType(t), t)
+func (e *typeErrors) referenceRedefinition(id int64, l common.Location, ex ast.Expr, prev, next *ast.ReferenceInfo) {
+ e.errs.ReportErrorAtID(id, l,
+ "reference already exists for expression: %v(%d) old:%v, new:%v", ex, ex.ID(), prev, next)
}
-func (e *typeErrors) notAMessageType(l common.Location, t *exprpb.Type) {
- e.ReportError(l, "'%s' is not a message type", FormatCheckedType(t))
+func (e *typeErrors) typeDoesNotSupportFieldSelection(id int64, l common.Location, t *types.Type) {
+ e.errs.ReportErrorAtID(id, l, "type '%s' does not support field selection", FormatCELType(t))
}
-func (e *typeErrors) fieldTypeMismatch(l common.Location, name string, field *exprpb.Type, value *exprpb.Type) {
- e.ReportError(l, "expected type of field '%s' is '%s' but provided type is '%s'",
- name, FormatCheckedType(field), FormatCheckedType(value))
+func (e *typeErrors) typeMismatch(id int64, l common.Location, expected, actual *types.Type) {
+ e.errs.ReportErrorAtID(id, l, "expected type '%s' but found '%s'",
+ FormatCELType(expected), FormatCELType(actual))
}
-func (e *typeErrors) unexpectedFailedResolution(l common.Location, typeName string) {
- e.ReportError(l, "[internal] unexpected failed resolution of '%s'", typeName)
+func (e *typeErrors) undefinedField(id int64, l common.Location, field string) {
+ e.errs.ReportErrorAtID(id, l, "undefined field '%s'", field)
}
-func (e *typeErrors) notAComprehensionRange(l common.Location, t *exprpb.Type) {
- e.ReportError(l, "expression of type '%s' cannot be range of a comprehension (must be list, map, or dynamic)",
- FormatCheckedType(t))
+func (e *typeErrors) undeclaredReference(id int64, l common.Location, container string, name string) {
+ e.errs.ReportErrorAtID(id, l, "undeclared reference to '%s' (in container '%s')", name, container)
}
-func (e *typeErrors) typeMismatch(l common.Location, expected *exprpb.Type, actual *exprpb.Type) {
- e.ReportError(l, "expected type '%s' but found '%s'",
- FormatCheckedType(expected), FormatCheckedType(actual))
+func (e *typeErrors) unexpectedFailedResolution(id int64, l common.Location, typeName string) {
+ e.errs.ReportErrorAtID(id, l, "unexpected failed resolution of '%s'", typeName)
}
-func formatFunction(resultType *exprpb.Type, argTypes []*exprpb.Type, isInstance bool) string {
- result := ""
- if isInstance {
- target := argTypes[0]
- argTypes = argTypes[1:]
-
- result += FormatCheckedType(target)
- result += "."
- }
-
- result += "("
- for i, arg := range argTypes {
- if i > 0 {
- result += ", "
- }
- result += FormatCheckedType(arg)
- }
- result += ")"
- if resultType != nil {
- result += " -> "
- result += FormatCheckedType(resultType)
- }
-
- return result
+func (e *typeErrors) unexpectedASTType(id int64, l common.Location, kind, typeName string) {
+ e.errs.ReportErrorAtID(id, l, "unexpected %s type: %v", kind, typeName)
}
diff --git a/vendor/github.com/google/cel-go/checker/format.go b/vendor/github.com/google/cel-go/checker/format.go
new file mode 100644
index 0000000..9584290
--- /dev/null
+++ b/vendor/github.com/google/cel-go/checker/format.go
@@ -0,0 +1,216 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package checker
+
+import (
+ "fmt"
+ "strings"
+
+ chkdecls "github.com/google/cel-go/checker/decls"
+ "github.com/google/cel-go/common/types"
+
+ exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+)
+
+const (
+ kindUnknown = iota + 1
+ kindError
+ kindFunction
+ kindDyn
+ kindPrimitive
+ kindWellKnown
+ kindWrapper
+ kindNull
+ kindAbstract
+ kindType
+ kindList
+ kindMap
+ kindObject
+ kindTypeParam
+)
+
+// FormatCheckedType converts a type message into a string representation.
+func FormatCheckedType(t *exprpb.Type) string {
+ switch kindOf(t) {
+ case kindDyn:
+ return "dyn"
+ case kindFunction:
+ return formatFunctionExprType(t.GetFunction().GetResultType(),
+ t.GetFunction().GetArgTypes(),
+ false)
+ case kindList:
+ return fmt.Sprintf("list(%s)", FormatCheckedType(t.GetListType().GetElemType()))
+ case kindObject:
+ return t.GetMessageType()
+ case kindMap:
+ return fmt.Sprintf("map(%s, %s)",
+ FormatCheckedType(t.GetMapType().GetKeyType()),
+ FormatCheckedType(t.GetMapType().GetValueType()))
+ case kindNull:
+ return "null"
+ case kindPrimitive:
+ switch t.GetPrimitive() {
+ case exprpb.Type_UINT64:
+ return "uint"
+ case exprpb.Type_INT64:
+ return "int"
+ }
+ return strings.Trim(strings.ToLower(t.GetPrimitive().String()), " ")
+ case kindType:
+ if t.GetType() == nil || t.GetType().GetTypeKind() == nil {
+ return "type"
+ }
+ return fmt.Sprintf("type(%s)", FormatCheckedType(t.GetType()))
+ case kindWellKnown:
+ switch t.GetWellKnown() {
+ case exprpb.Type_ANY:
+ return "any"
+ case exprpb.Type_DURATION:
+ return "duration"
+ case exprpb.Type_TIMESTAMP:
+ return "timestamp"
+ }
+ case kindWrapper:
+ return fmt.Sprintf("wrapper(%s)",
+ FormatCheckedType(chkdecls.NewPrimitiveType(t.GetWrapper())))
+ case kindError:
+ return "!error!"
+ case kindTypeParam:
+ return t.GetTypeParam()
+ case kindAbstract:
+ at := t.GetAbstractType()
+ params := at.GetParameterTypes()
+ paramStrs := make([]string, len(params))
+ for i, p := range params {
+ paramStrs[i] = FormatCheckedType(p)
+ }
+ return fmt.Sprintf("%s(%s)", at.GetName(), strings.Join(paramStrs, ", "))
+ }
+ return t.String()
+}
+
+type formatter func(any) string
+
+// FormatCELType formats a types.Type value to a string representation.
+//
+// The type formatting is identical to FormatCheckedType.
+func FormatCELType(t any) string {
+ dt := t.(*types.Type)
+ switch dt.Kind() {
+ case types.AnyKind:
+ return "any"
+ case types.DurationKind:
+ return "duration"
+ case types.ErrorKind:
+ return "!error!"
+ case types.NullTypeKind:
+ return "null"
+ case types.TimestampKind:
+ return "timestamp"
+ case types.TypeParamKind:
+ return dt.TypeName()
+ case types.OpaqueKind:
+ if dt.TypeName() == "function" {
+ // There is no explicit function type in the new types representation, so information like
+ // whether the function is a member function is absent.
+ return formatFunctionDeclType(dt.Parameters()[0], dt.Parameters()[1:], false)
+ }
+ case types.UnspecifiedKind:
+ return ""
+ }
+ if len(dt.Parameters()) == 0 {
+ return dt.DeclaredTypeName()
+ }
+ paramTypeNames := make([]string, 0, len(dt.Parameters()))
+ for _, p := range dt.Parameters() {
+ paramTypeNames = append(paramTypeNames, FormatCELType(p))
+ }
+ return fmt.Sprintf("%s(%s)", dt.TypeName(), strings.Join(paramTypeNames, ", "))
+}
+
+func formatExprType(t any) string {
+ if t == nil {
+ return ""
+ }
+ return FormatCheckedType(t.(*exprpb.Type))
+}
+
+func formatFunctionExprType(resultType *exprpb.Type, argTypes []*exprpb.Type, isInstance bool) string {
+ return formatFunctionInternal[*exprpb.Type](resultType, argTypes, isInstance, formatExprType)
+}
+
+func formatFunctionDeclType(resultType *types.Type, argTypes []*types.Type, isInstance bool) string {
+ return formatFunctionInternal[*types.Type](resultType, argTypes, isInstance, FormatCELType)
+}
+
+func formatFunctionInternal[T any](resultType T, argTypes []T, isInstance bool, format formatter) string {
+ result := ""
+ if isInstance {
+ target := argTypes[0]
+ argTypes = argTypes[1:]
+ result += format(target)
+ result += "."
+ }
+ result += "("
+ for i, arg := range argTypes {
+ if i > 0 {
+ result += ", "
+ }
+ result += format(arg)
+ }
+ result += ")"
+ rt := format(resultType)
+ if rt != "" {
+ result += " -> "
+ result += rt
+ }
+ return result
+}
+
+// kindOf returns the kind of the type as defined in the checked.proto.
+func kindOf(t *exprpb.Type) int {
+ if t == nil || t.TypeKind == nil {
+ return kindUnknown
+ }
+ switch t.GetTypeKind().(type) {
+ case *exprpb.Type_Error:
+ return kindError
+ case *exprpb.Type_Function:
+ return kindFunction
+ case *exprpb.Type_Dyn:
+ return kindDyn
+ case *exprpb.Type_Primitive:
+ return kindPrimitive
+ case *exprpb.Type_WellKnown:
+ return kindWellKnown
+ case *exprpb.Type_Wrapper:
+ return kindWrapper
+ case *exprpb.Type_Null:
+ return kindNull
+ case *exprpb.Type_Type:
+ return kindType
+ case *exprpb.Type_ListType_:
+ return kindList
+ case *exprpb.Type_MapType_:
+ return kindMap
+ case *exprpb.Type_MessageType:
+ return kindObject
+ case *exprpb.Type_TypeParam:
+ return kindTypeParam
+ case *exprpb.Type_AbstractType_:
+ return kindAbstract
+ }
+ return kindUnknown
+}
diff --git a/vendor/github.com/google/cel-go/checker/mapping.go b/vendor/github.com/google/cel-go/checker/mapping.go
index fbc55a2..8163a90 100644
--- a/vendor/github.com/google/cel-go/checker/mapping.go
+++ b/vendor/github.com/google/cel-go/checker/mapping.go
@@ -15,25 +15,25 @@
package checker
import (
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/types"
)
type mapping struct {
- mapping map[string]*exprpb.Type
+ mapping map[string]*types.Type
}
func newMapping() *mapping {
return &mapping{
- mapping: make(map[string]*exprpb.Type),
+ mapping: make(map[string]*types.Type),
}
}
-func (m *mapping) add(from *exprpb.Type, to *exprpb.Type) {
- m.mapping[typeKey(from)] = to
+func (m *mapping) add(from, to *types.Type) {
+ m.mapping[FormatCELType(from)] = to
}
-func (m *mapping) find(from *exprpb.Type) (*exprpb.Type, bool) {
- if r, found := m.mapping[typeKey(from)]; found {
+func (m *mapping) find(from *types.Type) (*types.Type, bool) {
+ if r, found := m.mapping[FormatCELType(from)]; found {
return r, found
}
return nil, false
diff --git a/vendor/github.com/google/cel-go/checker/options.go b/vendor/github.com/google/cel-go/checker/options.go
index cded00a..0560c38 100644
--- a/vendor/github.com/google/cel-go/checker/options.go
+++ b/vendor/github.com/google/cel-go/checker/options.go
@@ -14,12 +14,10 @@
package checker
-import "github.com/google/cel-go/checker/decls"
-
type options struct {
crossTypeNumericComparisons bool
homogeneousAggregateLiterals bool
- validatedDeclarations *decls.Scopes
+ validatedDeclarations *Scopes
}
// Option is a functional option for configuring the type-checker
@@ -34,15 +32,6 @@ func CrossTypeNumericComparisons(enabled bool) Option {
}
}
-// HomogeneousAggregateLiterals toggles support for constructing lists and maps whose elements all
-// have the same type.
-func HomogeneousAggregateLiterals(enabled bool) Option {
- return func(opts *options) error {
- opts.homogeneousAggregateLiterals = enabled
- return nil
- }
-}
-
// ValidatedDeclarations provides a references to validated declarations which will be copied
// into new checker instances.
func ValidatedDeclarations(env *Env) Option {
diff --git a/vendor/github.com/google/cel-go/checker/printer.go b/vendor/github.com/google/cel-go/checker/printer.go
index 0cecc52..7a3984f 100644
--- a/vendor/github.com/google/cel-go/checker/printer.go
+++ b/vendor/github.com/google/cel-go/checker/printer.go
@@ -15,39 +15,42 @@
package checker
import (
- "github.com/google/cel-go/common/debug"
+ "sort"
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/debug"
)
type semanticAdorner struct {
- checks *exprpb.CheckedExpr
+ checked *ast.AST
}
var _ debug.Adorner = &semanticAdorner{}
func (a *semanticAdorner) GetMetadata(elem any) string {
result := ""
- e, isExpr := elem.(*exprpb.Expr)
+ e, isExpr := elem.(ast.Expr)
if !isExpr {
return result
}
- t := a.checks.TypeMap[e.GetId()]
+ t := a.checked.TypeMap()[e.ID()]
if t != nil {
result += "~"
- result += FormatCheckedType(t)
+ result += FormatCELType(t)
}
- switch e.GetExprKind().(type) {
- case *exprpb.Expr_IdentExpr,
- *exprpb.Expr_CallExpr,
- *exprpb.Expr_StructExpr,
- *exprpb.Expr_SelectExpr:
- if ref, found := a.checks.ReferenceMap[e.GetId()]; found {
- if len(ref.GetOverloadId()) == 0 {
+ switch e.Kind() {
+ case ast.IdentKind,
+ ast.CallKind,
+ ast.ListKind,
+ ast.StructKind,
+ ast.SelectKind:
+ if ref, found := a.checked.ReferenceMap()[e.ID()]; found {
+ if len(ref.OverloadIDs) == 0 {
result += "^" + ref.Name
} else {
- for i, overload := range ref.GetOverloadId() {
+ sort.Strings(ref.OverloadIDs)
+ for i, overload := range ref.OverloadIDs {
if i == 0 {
result += "^"
} else {
@@ -65,7 +68,7 @@ func (a *semanticAdorner) GetMetadata(elem any) string {
// Print returns a string representation of the Expr message,
// annotated with types from the CheckedExpr. The Expr must
// be a sub-expression embedded in the CheckedExpr.
-func Print(e *exprpb.Expr, checks *exprpb.CheckedExpr) string {
- a := &semanticAdorner{checks: checks}
+func Print(e ast.Expr, checked *ast.AST) string {
+ a := &semanticAdorner{checked: checked}
return debug.ToAdornedDebugString(e, a)
}
diff --git a/vendor/github.com/google/cel-go/checker/decls/scopes.go b/vendor/github.com/google/cel-go/checker/scopes.go
index 608bca3..8bb73dd 100644
--- a/vendor/github.com/google/cel-go/checker/decls/scopes.go
+++ b/vendor/github.com/google/cel-go/checker/scopes.go
@@ -12,9 +12,11 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-package decls
+package checker
-import exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+import (
+ "github.com/google/cel-go/common/decls"
+)
// Scopes represents nested Decl sets where the Scopes value contains a Groups containing all
// identifiers in scope and an optional parent representing outer scopes.
@@ -25,9 +27,9 @@ type Scopes struct {
scopes *Group
}
-// NewScopes creates a new, empty Scopes.
+// newScopes creates a new, empty Scopes.
// Some operations can't be safely performed until a Group is added with Push.
-func NewScopes() *Scopes {
+func newScopes() *Scopes {
return &Scopes{
scopes: newGroup(),
}
@@ -35,7 +37,7 @@ func NewScopes() *Scopes {
// Copy creates a copy of the current Scopes values, including a copy of its parent if non-nil.
func (s *Scopes) Copy() *Scopes {
- cpy := NewScopes()
+ cpy := newScopes()
if s == nil {
return cpy
}
@@ -66,14 +68,14 @@ func (s *Scopes) Pop() *Scopes {
// AddIdent adds the ident Decl in the current scope.
// Note: If the name collides with an existing identifier in the scope, the Decl is overwritten.
-func (s *Scopes) AddIdent(decl *exprpb.Decl) {
- s.scopes.idents[decl.Name] = decl
+func (s *Scopes) AddIdent(decl *decls.VariableDecl) {
+ s.scopes.idents[decl.Name()] = decl
}
// FindIdent finds the first ident Decl with a matching name in Scopes, or nil if one cannot be
// found.
// Note: The search is performed from innermost to outermost.
-func (s *Scopes) FindIdent(name string) *exprpb.Decl {
+func (s *Scopes) FindIdent(name string) *decls.VariableDecl {
if ident, found := s.scopes.idents[name]; found {
return ident
}
@@ -86,7 +88,7 @@ func (s *Scopes) FindIdent(name string) *exprpb.Decl {
// FindIdentInScope finds the first ident Decl with a matching name in the current Scopes value, or
// nil if one does not exist.
// Note: The search is only performed on the current scope and does not search outer scopes.
-func (s *Scopes) FindIdentInScope(name string) *exprpb.Decl {
+func (s *Scopes) FindIdentInScope(name string) *decls.VariableDecl {
if ident, found := s.scopes.idents[name]; found {
return ident
}
@@ -95,14 +97,14 @@ func (s *Scopes) FindIdentInScope(name string) *exprpb.Decl {
// SetFunction adds the function Decl to the current scope.
// Note: Any previous entry for a function in the current scope with the same name is overwritten.
-func (s *Scopes) SetFunction(fn *exprpb.Decl) {
- s.scopes.functions[fn.Name] = fn
+func (s *Scopes) SetFunction(fn *decls.FunctionDecl) {
+ s.scopes.functions[fn.Name()] = fn
}
// FindFunction finds the first function Decl with a matching name in Scopes.
// The search is performed from innermost to outermost.
// Returns nil if no such function in Scopes.
-func (s *Scopes) FindFunction(name string) *exprpb.Decl {
+func (s *Scopes) FindFunction(name string) *decls.FunctionDecl {
if fn, found := s.scopes.functions[name]; found {
return fn
}
@@ -116,16 +118,16 @@ func (s *Scopes) FindFunction(name string) *exprpb.Decl {
// Contains separate namespaces for identifier and function Decls.
// (Should be named "Scope" perhaps?)
type Group struct {
- idents map[string]*exprpb.Decl
- functions map[string]*exprpb.Decl
+ idents map[string]*decls.VariableDecl
+ functions map[string]*decls.FunctionDecl
}
// copy creates a new Group instance with a shallow copy of the variables and functions.
// If callers need to mutate the exprpb.Decl definitions for a Function, they should copy-on-write.
func (g *Group) copy() *Group {
cpy := &Group{
- idents: make(map[string]*exprpb.Decl, len(g.idents)),
- functions: make(map[string]*exprpb.Decl, len(g.functions)),
+ idents: make(map[string]*decls.VariableDecl, len(g.idents)),
+ functions: make(map[string]*decls.FunctionDecl, len(g.functions)),
}
for n, id := range g.idents {
cpy.idents[n] = id
@@ -139,7 +141,7 @@ func (g *Group) copy() *Group {
// newGroup creates a new Group with empty maps for identifiers and functions.
func newGroup() *Group {
return &Group{
- idents: make(map[string]*exprpb.Decl),
- functions: make(map[string]*exprpb.Decl),
+ idents: make(map[string]*decls.VariableDecl),
+ functions: make(map[string]*decls.FunctionDecl),
}
}
diff --git a/vendor/github.com/google/cel-go/checker/standard.go b/vendor/github.com/google/cel-go/checker/standard.go
deleted file mode 100644
index e64337b..0000000
--- a/vendor/github.com/google/cel-go/checker/standard.go
+++ /dev/null
@@ -1,494 +0,0 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package checker
-
-import (
- "github.com/google/cel-go/checker/decls"
- "github.com/google/cel-go/common/operators"
- "github.com/google/cel-go/common/overloads"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
-)
-
-var (
- standardDeclarations []*exprpb.Decl
-)
-
-func init() {
- // Some shortcuts we use when building declarations.
- paramA := decls.NewTypeParamType("A")
- typeParamAList := []string{"A"}
- listOfA := decls.NewListType(paramA)
- paramB := decls.NewTypeParamType("B")
- typeParamABList := []string{"A", "B"}
- mapOfAB := decls.NewMapType(paramA, paramB)
-
- var idents []*exprpb.Decl
- for _, t := range []*exprpb.Type{
- decls.Int, decls.Uint, decls.Bool,
- decls.Double, decls.Bytes, decls.String} {
- idents = append(idents,
- decls.NewVar(FormatCheckedType(t), decls.NewTypeType(t)))
- }
- idents = append(idents,
- decls.NewVar("list", decls.NewTypeType(listOfA)),
- decls.NewVar("map", decls.NewTypeType(mapOfAB)),
- decls.NewVar("null_type", decls.NewTypeType(decls.Null)),
- decls.NewVar("type", decls.NewTypeType(decls.NewTypeType(nil))))
-
- standardDeclarations = append(standardDeclarations, idents...)
- standardDeclarations = append(standardDeclarations, []*exprpb.Decl{
- // Booleans
- decls.NewFunction(operators.Conditional,
- decls.NewParameterizedOverload(overloads.Conditional,
- []*exprpb.Type{decls.Bool, paramA, paramA}, paramA,
- typeParamAList)),
-
- decls.NewFunction(operators.LogicalAnd,
- decls.NewOverload(overloads.LogicalAnd,
- []*exprpb.Type{decls.Bool, decls.Bool}, decls.Bool)),
-
- decls.NewFunction(operators.LogicalOr,
- decls.NewOverload(overloads.LogicalOr,
- []*exprpb.Type{decls.Bool, decls.Bool}, decls.Bool)),
-
- decls.NewFunction(operators.LogicalNot,
- decls.NewOverload(overloads.LogicalNot,
- []*exprpb.Type{decls.Bool}, decls.Bool)),
-
- decls.NewFunction(operators.NotStrictlyFalse,
- decls.NewOverload(overloads.NotStrictlyFalse,
- []*exprpb.Type{decls.Bool}, decls.Bool)),
-
- decls.NewFunction(operators.Equals,
- decls.NewParameterizedOverload(overloads.Equals,
- []*exprpb.Type{paramA, paramA}, decls.Bool,
- typeParamAList)),
-
- decls.NewFunction(operators.NotEquals,
- decls.NewParameterizedOverload(overloads.NotEquals,
- []*exprpb.Type{paramA, paramA}, decls.Bool,
- typeParamAList)),
-
- // Algebra.
-
- decls.NewFunction(operators.Subtract,
- decls.NewOverload(overloads.SubtractInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Int),
- decls.NewOverload(overloads.SubtractUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Uint),
- decls.NewOverload(overloads.SubtractDouble,
- []*exprpb.Type{decls.Double, decls.Double}, decls.Double),
- decls.NewOverload(overloads.SubtractTimestampTimestamp,
- []*exprpb.Type{decls.Timestamp, decls.Timestamp}, decls.Duration),
- decls.NewOverload(overloads.SubtractTimestampDuration,
- []*exprpb.Type{decls.Timestamp, decls.Duration}, decls.Timestamp),
- decls.NewOverload(overloads.SubtractDurationDuration,
- []*exprpb.Type{decls.Duration, decls.Duration}, decls.Duration)),
-
- decls.NewFunction(operators.Multiply,
- decls.NewOverload(overloads.MultiplyInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Int),
- decls.NewOverload(overloads.MultiplyUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Uint),
- decls.NewOverload(overloads.MultiplyDouble,
- []*exprpb.Type{decls.Double, decls.Double}, decls.Double)),
-
- decls.NewFunction(operators.Divide,
- decls.NewOverload(overloads.DivideInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Int),
- decls.NewOverload(overloads.DivideUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Uint),
- decls.NewOverload(overloads.DivideDouble,
- []*exprpb.Type{decls.Double, decls.Double}, decls.Double)),
-
- decls.NewFunction(operators.Modulo,
- decls.NewOverload(overloads.ModuloInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Int),
- decls.NewOverload(overloads.ModuloUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Uint)),
-
- decls.NewFunction(operators.Add,
- decls.NewOverload(overloads.AddInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Int),
- decls.NewOverload(overloads.AddUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Uint),
- decls.NewOverload(overloads.AddDouble,
- []*exprpb.Type{decls.Double, decls.Double}, decls.Double),
- decls.NewOverload(overloads.AddString,
- []*exprpb.Type{decls.String, decls.String}, decls.String),
- decls.NewOverload(overloads.AddBytes,
- []*exprpb.Type{decls.Bytes, decls.Bytes}, decls.Bytes),
- decls.NewParameterizedOverload(overloads.AddList,
- []*exprpb.Type{listOfA, listOfA}, listOfA,
- typeParamAList),
- decls.NewOverload(overloads.AddTimestampDuration,
- []*exprpb.Type{decls.Timestamp, decls.Duration}, decls.Timestamp),
- decls.NewOverload(overloads.AddDurationTimestamp,
- []*exprpb.Type{decls.Duration, decls.Timestamp}, decls.Timestamp),
- decls.NewOverload(overloads.AddDurationDuration,
- []*exprpb.Type{decls.Duration, decls.Duration}, decls.Duration)),
-
- decls.NewFunction(operators.Negate,
- decls.NewOverload(overloads.NegateInt64,
- []*exprpb.Type{decls.Int}, decls.Int),
- decls.NewOverload(overloads.NegateDouble,
- []*exprpb.Type{decls.Double}, decls.Double)),
-
- // Index.
-
- decls.NewFunction(operators.Index,
- decls.NewParameterizedOverload(overloads.IndexList,
- []*exprpb.Type{listOfA, decls.Int}, paramA,
- typeParamAList),
- decls.NewParameterizedOverload(overloads.IndexMap,
- []*exprpb.Type{mapOfAB, paramA}, paramB,
- typeParamABList)),
-
- // Collections.
-
- decls.NewFunction(overloads.Size,
- decls.NewInstanceOverload(overloads.SizeStringInst,
- []*exprpb.Type{decls.String}, decls.Int),
- decls.NewInstanceOverload(overloads.SizeBytesInst,
- []*exprpb.Type{decls.Bytes}, decls.Int),
- decls.NewParameterizedInstanceOverload(overloads.SizeListInst,
- []*exprpb.Type{listOfA}, decls.Int, typeParamAList),
- decls.NewParameterizedInstanceOverload(overloads.SizeMapInst,
- []*exprpb.Type{mapOfAB}, decls.Int, typeParamABList),
- decls.NewOverload(overloads.SizeString,
- []*exprpb.Type{decls.String}, decls.Int),
- decls.NewOverload(overloads.SizeBytes,
- []*exprpb.Type{decls.Bytes}, decls.Int),
- decls.NewParameterizedOverload(overloads.SizeList,
- []*exprpb.Type{listOfA}, decls.Int, typeParamAList),
- decls.NewParameterizedOverload(overloads.SizeMap,
- []*exprpb.Type{mapOfAB}, decls.Int, typeParamABList)),
-
- decls.NewFunction(operators.In,
- decls.NewParameterizedOverload(overloads.InList,
- []*exprpb.Type{paramA, listOfA}, decls.Bool,
- typeParamAList),
- decls.NewParameterizedOverload(overloads.InMap,
- []*exprpb.Type{paramA, mapOfAB}, decls.Bool,
- typeParamABList)),
-
- // Deprecated 'in()' function.
-
- decls.NewFunction(overloads.DeprecatedIn,
- decls.NewParameterizedOverload(overloads.InList,
- []*exprpb.Type{paramA, listOfA}, decls.Bool,
- typeParamAList),
- decls.NewParameterizedOverload(overloads.InMap,
- []*exprpb.Type{paramA, mapOfAB}, decls.Bool,
- typeParamABList)),
-
- // Conversions to type.
-
- decls.NewFunction(overloads.TypeConvertType,
- decls.NewParameterizedOverload(overloads.TypeConvertType,
- []*exprpb.Type{paramA}, decls.NewTypeType(paramA), typeParamAList)),
-
- // Conversions to int.
-
- decls.NewFunction(overloads.TypeConvertInt,
- decls.NewOverload(overloads.IntToInt, []*exprpb.Type{decls.Int}, decls.Int),
- decls.NewOverload(overloads.UintToInt, []*exprpb.Type{decls.Uint}, decls.Int),
- decls.NewOverload(overloads.DoubleToInt, []*exprpb.Type{decls.Double}, decls.Int),
- decls.NewOverload(overloads.StringToInt, []*exprpb.Type{decls.String}, decls.Int),
- decls.NewOverload(overloads.TimestampToInt, []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewOverload(overloads.DurationToInt, []*exprpb.Type{decls.Duration}, decls.Int)),
-
- // Conversions to uint.
-
- decls.NewFunction(overloads.TypeConvertUint,
- decls.NewOverload(overloads.UintToUint, []*exprpb.Type{decls.Uint}, decls.Uint),
- decls.NewOverload(overloads.IntToUint, []*exprpb.Type{decls.Int}, decls.Uint),
- decls.NewOverload(overloads.DoubleToUint, []*exprpb.Type{decls.Double}, decls.Uint),
- decls.NewOverload(overloads.StringToUint, []*exprpb.Type{decls.String}, decls.Uint)),
-
- // Conversions to double.
-
- decls.NewFunction(overloads.TypeConvertDouble,
- decls.NewOverload(overloads.DoubleToDouble, []*exprpb.Type{decls.Double}, decls.Double),
- decls.NewOverload(overloads.IntToDouble, []*exprpb.Type{decls.Int}, decls.Double),
- decls.NewOverload(overloads.UintToDouble, []*exprpb.Type{decls.Uint}, decls.Double),
- decls.NewOverload(overloads.StringToDouble, []*exprpb.Type{decls.String}, decls.Double)),
-
- // Conversions to bool.
-
- decls.NewFunction(overloads.TypeConvertBool,
- decls.NewOverload(overloads.BoolToBool, []*exprpb.Type{decls.Bool}, decls.Bool),
- decls.NewOverload(overloads.StringToBool, []*exprpb.Type{decls.String}, decls.Bool)),
-
- // Conversions to string.
-
- decls.NewFunction(overloads.TypeConvertString,
- decls.NewOverload(overloads.StringToString, []*exprpb.Type{decls.String}, decls.String),
- decls.NewOverload(overloads.BoolToString, []*exprpb.Type{decls.Bool}, decls.String),
- decls.NewOverload(overloads.IntToString, []*exprpb.Type{decls.Int}, decls.String),
- decls.NewOverload(overloads.UintToString, []*exprpb.Type{decls.Uint}, decls.String),
- decls.NewOverload(overloads.DoubleToString, []*exprpb.Type{decls.Double}, decls.String),
- decls.NewOverload(overloads.BytesToString, []*exprpb.Type{decls.Bytes}, decls.String),
- decls.NewOverload(overloads.TimestampToString, []*exprpb.Type{decls.Timestamp}, decls.String),
- decls.NewOverload(overloads.DurationToString, []*exprpb.Type{decls.Duration}, decls.String)),
-
- // Conversions to bytes.
-
- decls.NewFunction(overloads.TypeConvertBytes,
- decls.NewOverload(overloads.BytesToBytes, []*exprpb.Type{decls.Bytes}, decls.Bytes),
- decls.NewOverload(overloads.StringToBytes, []*exprpb.Type{decls.String}, decls.Bytes)),
-
- // Conversions to timestamps.
-
- decls.NewFunction(overloads.TypeConvertTimestamp,
- decls.NewOverload(overloads.TimestampToTimestamp,
- []*exprpb.Type{decls.Timestamp}, decls.Timestamp),
- decls.NewOverload(overloads.StringToTimestamp,
- []*exprpb.Type{decls.String}, decls.Timestamp),
- decls.NewOverload(overloads.IntToTimestamp,
- []*exprpb.Type{decls.Int}, decls.Timestamp)),
-
- // Conversions to durations.
-
- decls.NewFunction(overloads.TypeConvertDuration,
- decls.NewOverload(overloads.DurationToDuration,
- []*exprpb.Type{decls.Duration}, decls.Duration),
- decls.NewOverload(overloads.StringToDuration,
- []*exprpb.Type{decls.String}, decls.Duration),
- decls.NewOverload(overloads.IntToDuration,
- []*exprpb.Type{decls.Int}, decls.Duration)),
-
- // Conversions to Dyn.
-
- decls.NewFunction(overloads.TypeConvertDyn,
- decls.NewParameterizedOverload(overloads.ToDyn,
- []*exprpb.Type{paramA}, decls.Dyn,
- typeParamAList)),
-
- // String functions.
-
- decls.NewFunction(overloads.Contains,
- decls.NewInstanceOverload(overloads.ContainsString,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool)),
- decls.NewFunction(overloads.EndsWith,
- decls.NewInstanceOverload(overloads.EndsWithString,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool)),
- decls.NewFunction(overloads.Matches,
- decls.NewOverload(overloads.Matches,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool),
- decls.NewInstanceOverload(overloads.MatchesString,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool)),
- decls.NewFunction(overloads.StartsWith,
- decls.NewInstanceOverload(overloads.StartsWithString,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool)),
-
- // Date/time functions.
-
- decls.NewFunction(overloads.TimeGetFullYear,
- decls.NewInstanceOverload(overloads.TimestampToYear,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToYearWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetMonth,
- decls.NewInstanceOverload(overloads.TimestampToMonth,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToMonthWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetDayOfYear,
- decls.NewInstanceOverload(overloads.TimestampToDayOfYear,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToDayOfYearWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetDayOfMonth,
- decls.NewInstanceOverload(overloads.TimestampToDayOfMonthZeroBased,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToDayOfMonthZeroBasedWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetDate,
- decls.NewInstanceOverload(overloads.TimestampToDayOfMonthOneBased,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToDayOfMonthOneBasedWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetDayOfWeek,
- decls.NewInstanceOverload(overloads.TimestampToDayOfWeek,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToDayOfWeekWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetHours,
- decls.NewInstanceOverload(overloads.TimestampToHours,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToHoursWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int),
- decls.NewInstanceOverload(overloads.DurationToHours,
- []*exprpb.Type{decls.Duration}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetMinutes,
- decls.NewInstanceOverload(overloads.TimestampToMinutes,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToMinutesWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int),
- decls.NewInstanceOverload(overloads.DurationToMinutes,
- []*exprpb.Type{decls.Duration}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetSeconds,
- decls.NewInstanceOverload(overloads.TimestampToSeconds,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToSecondsWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int),
- decls.NewInstanceOverload(overloads.DurationToSeconds,
- []*exprpb.Type{decls.Duration}, decls.Int)),
-
- decls.NewFunction(overloads.TimeGetMilliseconds,
- decls.NewInstanceOverload(overloads.TimestampToMilliseconds,
- []*exprpb.Type{decls.Timestamp}, decls.Int),
- decls.NewInstanceOverload(overloads.TimestampToMillisecondsWithTz,
- []*exprpb.Type{decls.Timestamp, decls.String}, decls.Int),
- decls.NewInstanceOverload(overloads.DurationToMilliseconds,
- []*exprpb.Type{decls.Duration}, decls.Int)),
-
- // Relations.
- decls.NewFunction(operators.Less,
- decls.NewOverload(overloads.LessBool,
- []*exprpb.Type{decls.Bool, decls.Bool}, decls.Bool),
- decls.NewOverload(overloads.LessInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.LessInt64Double,
- []*exprpb.Type{decls.Int, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.LessInt64Uint64,
- []*exprpb.Type{decls.Int, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.LessUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.LessUint64Double,
- []*exprpb.Type{decls.Uint, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.LessUint64Int64,
- []*exprpb.Type{decls.Uint, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.LessDouble,
- []*exprpb.Type{decls.Double, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.LessDoubleInt64,
- []*exprpb.Type{decls.Double, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.LessDoubleUint64,
- []*exprpb.Type{decls.Double, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.LessString,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool),
- decls.NewOverload(overloads.LessBytes,
- []*exprpb.Type{decls.Bytes, decls.Bytes}, decls.Bool),
- decls.NewOverload(overloads.LessTimestamp,
- []*exprpb.Type{decls.Timestamp, decls.Timestamp}, decls.Bool),
- decls.NewOverload(overloads.LessDuration,
- []*exprpb.Type{decls.Duration, decls.Duration}, decls.Bool)),
-
- decls.NewFunction(operators.LessEquals,
- decls.NewOverload(overloads.LessEqualsBool,
- []*exprpb.Type{decls.Bool, decls.Bool}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsInt64Double,
- []*exprpb.Type{decls.Int, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsInt64Uint64,
- []*exprpb.Type{decls.Int, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsUint64Double,
- []*exprpb.Type{decls.Uint, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsUint64Int64,
- []*exprpb.Type{decls.Uint, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsDouble,
- []*exprpb.Type{decls.Double, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsDoubleInt64,
- []*exprpb.Type{decls.Double, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsDoubleUint64,
- []*exprpb.Type{decls.Double, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsString,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsBytes,
- []*exprpb.Type{decls.Bytes, decls.Bytes}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsTimestamp,
- []*exprpb.Type{decls.Timestamp, decls.Timestamp}, decls.Bool),
- decls.NewOverload(overloads.LessEqualsDuration,
- []*exprpb.Type{decls.Duration, decls.Duration}, decls.Bool)),
-
- decls.NewFunction(operators.Greater,
- decls.NewOverload(overloads.GreaterBool,
- []*exprpb.Type{decls.Bool, decls.Bool}, decls.Bool),
- decls.NewOverload(overloads.GreaterInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.GreaterInt64Double,
- []*exprpb.Type{decls.Int, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.GreaterInt64Uint64,
- []*exprpb.Type{decls.Int, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.GreaterUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.GreaterUint64Double,
- []*exprpb.Type{decls.Uint, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.GreaterUint64Int64,
- []*exprpb.Type{decls.Uint, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.GreaterDouble,
- []*exprpb.Type{decls.Double, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.GreaterDoubleInt64,
- []*exprpb.Type{decls.Double, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.GreaterDoubleUint64,
- []*exprpb.Type{decls.Double, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.GreaterString,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool),
- decls.NewOverload(overloads.GreaterBytes,
- []*exprpb.Type{decls.Bytes, decls.Bytes}, decls.Bool),
- decls.NewOverload(overloads.GreaterTimestamp,
- []*exprpb.Type{decls.Timestamp, decls.Timestamp}, decls.Bool),
- decls.NewOverload(overloads.GreaterDuration,
- []*exprpb.Type{decls.Duration, decls.Duration}, decls.Bool)),
-
- decls.NewFunction(operators.GreaterEquals,
- decls.NewOverload(overloads.GreaterEqualsBool,
- []*exprpb.Type{decls.Bool, decls.Bool}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsInt64,
- []*exprpb.Type{decls.Int, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsInt64Double,
- []*exprpb.Type{decls.Int, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsInt64Uint64,
- []*exprpb.Type{decls.Int, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsUint64,
- []*exprpb.Type{decls.Uint, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsUint64Double,
- []*exprpb.Type{decls.Uint, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsUint64Int64,
- []*exprpb.Type{decls.Uint, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsDouble,
- []*exprpb.Type{decls.Double, decls.Double}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsDoubleInt64,
- []*exprpb.Type{decls.Double, decls.Int}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsDoubleUint64,
- []*exprpb.Type{decls.Double, decls.Uint}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsString,
- []*exprpb.Type{decls.String, decls.String}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsBytes,
- []*exprpb.Type{decls.Bytes, decls.Bytes}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsTimestamp,
- []*exprpb.Type{decls.Timestamp, decls.Timestamp}, decls.Bool),
- decls.NewOverload(overloads.GreaterEqualsDuration,
- []*exprpb.Type{decls.Duration, decls.Duration}, decls.Bool)),
- }...)
-}
-
-// StandardDeclarations returns the Decls for all functions and constants in the evaluator.
-func StandardDeclarations() []*exprpb.Decl {
- return standardDeclarations
-}
diff --git a/vendor/github.com/google/cel-go/checker/types.go b/vendor/github.com/google/cel-go/checker/types.go
index 28d21c9..4c65b27 100644
--- a/vendor/github.com/google/cel-go/checker/types.go
+++ b/vendor/github.com/google/cel-go/checker/types.go
@@ -15,154 +15,54 @@
package checker
import (
- "fmt"
- "strings"
-
- "github.com/google/cel-go/checker/decls"
-
- "google.golang.org/protobuf/proto"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/types"
)
-const (
- kindUnknown = iota + 1
- kindError
- kindFunction
- kindDyn
- kindPrimitive
- kindWellKnown
- kindWrapper
- kindNull
- kindAbstract
- kindType
- kindList
- kindMap
- kindObject
- kindTypeParam
-)
-
-// FormatCheckedType converts a type message into a string representation.
-func FormatCheckedType(t *exprpb.Type) string {
- switch kindOf(t) {
- case kindDyn:
- return "dyn"
- case kindFunction:
- return formatFunction(t.GetFunction().GetResultType(),
- t.GetFunction().GetArgTypes(),
- false)
- case kindList:
- return fmt.Sprintf("list(%s)", FormatCheckedType(t.GetListType().GetElemType()))
- case kindObject:
- return t.GetMessageType()
- case kindMap:
- return fmt.Sprintf("map(%s, %s)",
- FormatCheckedType(t.GetMapType().GetKeyType()),
- FormatCheckedType(t.GetMapType().GetValueType()))
- case kindNull:
- return "null"
- case kindPrimitive:
- switch t.GetPrimitive() {
- case exprpb.Type_UINT64:
- return "uint"
- case exprpb.Type_INT64:
- return "int"
- }
- return strings.Trim(strings.ToLower(t.GetPrimitive().String()), " ")
- case kindType:
- if t.GetType() == nil {
- return "type"
- }
- return fmt.Sprintf("type(%s)", FormatCheckedType(t.GetType()))
- case kindWellKnown:
- switch t.GetWellKnown() {
- case exprpb.Type_ANY:
- return "any"
- case exprpb.Type_DURATION:
- return "duration"
- case exprpb.Type_TIMESTAMP:
- return "timestamp"
- }
- case kindWrapper:
- return fmt.Sprintf("wrapper(%s)",
- FormatCheckedType(decls.NewPrimitiveType(t.GetWrapper())))
- case kindError:
- return "!error!"
- case kindTypeParam:
- return t.GetTypeParam()
- case kindAbstract:
- at := t.GetAbstractType()
- params := at.GetParameterTypes()
- paramStrs := make([]string, len(params))
- for i, p := range params {
- paramStrs[i] = FormatCheckedType(p)
- }
- return fmt.Sprintf("%s(%s)", at.GetName(), strings.Join(paramStrs, ", "))
- }
- return t.String()
-}
-
// isDyn returns true if the input t is either type DYN or a well-known ANY message.
-func isDyn(t *exprpb.Type) bool {
+func isDyn(t *types.Type) bool {
// Note: object type values that are well-known and map to a DYN value in practice
// are sanitized prior to being added to the environment.
- switch kindOf(t) {
- case kindDyn:
+ switch t.Kind() {
+ case types.DynKind, types.AnyKind:
return true
- case kindWellKnown:
- return t.GetWellKnown() == exprpb.Type_ANY
default:
return false
}
}
// isDynOrError returns true if the input is either an Error, DYN, or well-known ANY message.
-func isDynOrError(t *exprpb.Type) bool {
+func isDynOrError(t *types.Type) bool {
return isError(t) || isDyn(t)
}
-func isError(t *exprpb.Type) bool {
- return kindOf(t) == kindError
+func isError(t *types.Type) bool {
+ return t.Kind() == types.ErrorKind
}
-func isOptional(t *exprpb.Type) bool {
- if kindOf(t) == kindAbstract {
- at := t.GetAbstractType()
- return at.GetName() == "optional"
+func isOptional(t *types.Type) bool {
+ if t.Kind() == types.OpaqueKind {
+ return t.TypeName() == "optional_type"
}
return false
}
-func maybeUnwrapOptional(t *exprpb.Type) (*exprpb.Type, bool) {
+func maybeUnwrapOptional(t *types.Type) (*types.Type, bool) {
if isOptional(t) {
- at := t.GetAbstractType()
- return at.GetParameterTypes()[0], true
+ return t.Parameters()[0], true
}
return t, false
}
-func maybeUnwrapString(e *exprpb.Expr) (string, bool) {
- switch e.GetExprKind().(type) {
- case *exprpb.Expr_ConstExpr:
- literal := e.GetConstExpr()
- switch literal.GetConstantKind().(type) {
- case *exprpb.Constant_StringValue:
- return literal.GetStringValue(), true
- }
- }
- return "", false
-}
-
// isEqualOrLessSpecific checks whether one type is equal or less specific than the other one.
// A type is less specific if it matches the other type using the DYN type.
-func isEqualOrLessSpecific(t1 *exprpb.Type, t2 *exprpb.Type) bool {
- kind1, kind2 := kindOf(t1), kindOf(t2)
+func isEqualOrLessSpecific(t1, t2 *types.Type) bool {
+ kind1, kind2 := t1.Kind(), t2.Kind()
// The first type is less specific.
- if isDyn(t1) || kind1 == kindTypeParam {
+ if isDyn(t1) || kind1 == types.TypeParamKind {
return true
}
// The first type is not less specific.
- if isDyn(t2) || kind2 == kindTypeParam {
+ if isDyn(t2) || kind2 == types.TypeParamKind {
return false
}
// Types must be of the same kind to be equal.
@@ -173,38 +73,34 @@ func isEqualOrLessSpecific(t1 *exprpb.Type, t2 *exprpb.Type) bool {
// With limited exceptions for ANY and JSON values, the types must agree and be equivalent in
// order to return true.
switch kind1 {
- case kindAbstract:
- a1 := t1.GetAbstractType()
- a2 := t2.GetAbstractType()
- if a1.GetName() != a2.GetName() ||
- len(a1.GetParameterTypes()) != len(a2.GetParameterTypes()) {
+ case types.OpaqueKind:
+ if t1.TypeName() != t2.TypeName() ||
+ len(t1.Parameters()) != len(t2.Parameters()) {
return false
}
- for i, p1 := range a1.GetParameterTypes() {
- if !isEqualOrLessSpecific(p1, a2.GetParameterTypes()[i]) {
+ for i, p1 := range t1.Parameters() {
+ if !isEqualOrLessSpecific(p1, t2.Parameters()[i]) {
return false
}
}
return true
- case kindList:
- return isEqualOrLessSpecific(t1.GetListType().GetElemType(), t2.GetListType().GetElemType())
- case kindMap:
- m1 := t1.GetMapType()
- m2 := t2.GetMapType()
- return isEqualOrLessSpecific(m1.GetKeyType(), m2.GetKeyType()) &&
- isEqualOrLessSpecific(m1.GetValueType(), m2.GetValueType())
- case kindType:
+ case types.ListKind:
+ return isEqualOrLessSpecific(t1.Parameters()[0], t2.Parameters()[0])
+ case types.MapKind:
+ return isEqualOrLessSpecific(t1.Parameters()[0], t2.Parameters()[0]) &&
+ isEqualOrLessSpecific(t1.Parameters()[1], t2.Parameters()[1])
+ case types.TypeKind:
return true
default:
- return proto.Equal(t1, t2)
+ return t1.IsExactType(t2)
}
}
// / internalIsAssignable returns true if t1 is assignable to t2.
-func internalIsAssignable(m *mapping, t1 *exprpb.Type, t2 *exprpb.Type) bool {
+func internalIsAssignable(m *mapping, t1, t2 *types.Type) bool {
// Process type parameters.
- kind1, kind2 := kindOf(t1), kindOf(t2)
- if kind2 == kindTypeParam {
+ kind1, kind2 := t1.Kind(), t2.Kind()
+ if kind2 == types.TypeParamKind {
// If t2 is a valid type substitution for t1, return true.
valid, t2HasSub := isValidTypeSubstitution(m, t1, t2)
if valid {
@@ -217,7 +113,7 @@ func internalIsAssignable(m *mapping, t1 *exprpb.Type, t2 *exprpb.Type) bool {
}
// Otherwise, fall through to check whether t1 is a possible substitution for t2.
}
- if kind1 == kindTypeParam {
+ if kind1 == types.TypeParamKind {
// Return whether t1 is a valid substitution for t2. If not, do no additional checks as the
// possible type substitutions have been searched in both directions.
valid, _ := isValidTypeSubstitution(m, t2, t1)
@@ -228,40 +124,29 @@ func internalIsAssignable(m *mapping, t1 *exprpb.Type, t2 *exprpb.Type) bool {
if isDynOrError(t1) || isDynOrError(t2) {
return true
}
-
- // Test for when the types do not need to agree, but are more specific than dyn.
- switch kind1 {
- case kindNull:
+ // Preserve the nullness checks of the legacy type-checker.
+ if kind1 == types.NullTypeKind {
return internalIsAssignableNull(t2)
- case kindPrimitive:
- return internalIsAssignablePrimitive(t1.GetPrimitive(), t2)
- case kindWrapper:
- return internalIsAssignable(m, decls.NewPrimitiveType(t1.GetWrapper()), t2)
- default:
- if kind1 != kind2 {
- return false
- }
+ }
+ if kind2 == types.NullTypeKind {
+ return internalIsAssignableNull(t1)
}
- // Test for when the types must agree.
+ // Test for when the types do not need to agree, but are more specific than dyn.
switch kind1 {
- // ERROR, TYPE_PARAM, and DYN handled above.
- case kindAbstract:
- return internalIsAssignableAbstractType(m, t1.GetAbstractType(), t2.GetAbstractType())
- case kindFunction:
- return internalIsAssignableFunction(m, t1.GetFunction(), t2.GetFunction())
- case kindList:
- return internalIsAssignable(m, t1.GetListType().GetElemType(), t2.GetListType().GetElemType())
- case kindMap:
- return internalIsAssignableMap(m, t1.GetMapType(), t2.GetMapType())
- case kindObject:
- return t1.GetMessageType() == t2.GetMessageType()
- case kindType:
- // A type is a type is a type, any additional parameterization of the
- // type cannot affect method resolution or assignability.
- return true
- case kindWellKnown:
- return t1.GetWellKnown() == t2.GetWellKnown()
+ case types.BoolKind, types.BytesKind, types.DoubleKind, types.IntKind, types.StringKind, types.UintKind,
+ types.AnyKind, types.DurationKind, types.TimestampKind,
+ types.StructKind:
+ // Test whether t2 is assignable from t1. The order of this check won't usually matter;
+ // however, there may be cases where type capabilities are expanded beyond what is supported
+ // in the current common/types package. For example, an interface designation for a group of
+ // Struct types.
+ return t2.IsAssignableType(t1)
+ case types.TypeKind:
+ return kind2 == types.TypeKind
+ case types.OpaqueKind, types.ListKind, types.MapKind:
+ return t1.Kind() == t2.Kind() && t1.TypeName() == t2.TypeName() &&
+ internalIsAssignableList(m, t1.Parameters(), t2.Parameters())
default:
return false
}
@@ -274,16 +159,16 @@ func internalIsAssignable(m *mapping, t1 *exprpb.Type, t2 *exprpb.Type) bool {
// - t2 has a type substitution (t2sub) equal to t1
// - t2 has a type substitution (t2sub) assignable to t1
// - t2 does not occur within t1.
-func isValidTypeSubstitution(m *mapping, t1, t2 *exprpb.Type) (valid, hasSub bool) {
+func isValidTypeSubstitution(m *mapping, t1, t2 *types.Type) (valid, hasSub bool) {
// Early return if the t1 and t2 are the same instance.
- kind1, kind2 := kindOf(t1), kindOf(t2)
- if kind1 == kind2 && (t1 == t2 || proto.Equal(t1, t2)) {
+ kind1, kind2 := t1.Kind(), t2.Kind()
+ if kind1 == kind2 && t1.IsExactType(t2) {
return true, true
}
if t2Sub, found := m.find(t2); found {
// Early return if t1 and t2Sub are the same instance as otherwise the mapping
// might mark a type as being a subtitution for itself.
- if kind1 == kindOf(t2Sub) && (t1 == t2Sub || proto.Equal(t1, t2Sub)) {
+ if kind1 == t2Sub.Kind() && t1.IsExactType(t2Sub) {
return true, true
}
// If the types are compatible, pick the more general type and return true
@@ -305,28 +190,10 @@ func isValidTypeSubstitution(m *mapping, t1, t2 *exprpb.Type) (valid, hasSub boo
return false, false
}
-// internalIsAssignableAbstractType returns true if the abstract type names agree and all type
-// parameters are assignable.
-func internalIsAssignableAbstractType(m *mapping, a1 *exprpb.Type_AbstractType, a2 *exprpb.Type_AbstractType) bool {
- return a1.GetName() == a2.GetName() &&
- internalIsAssignableList(m, a1.GetParameterTypes(), a2.GetParameterTypes())
-}
-
-// internalIsAssignableFunction returns true if the function return type and arg types are
-// assignable.
-func internalIsAssignableFunction(m *mapping, f1 *exprpb.Type_FunctionType, f2 *exprpb.Type_FunctionType) bool {
- f1ArgTypes := flattenFunctionTypes(f1)
- f2ArgTypes := flattenFunctionTypes(f2)
- if internalIsAssignableList(m, f1ArgTypes, f2ArgTypes) {
- return true
- }
- return false
-}
-
// internalIsAssignableList returns true if the element types at each index in the list are
// assignable from l1[i] to l2[i]. The list lengths must also agree for the lists to be
// assignable.
-func internalIsAssignableList(m *mapping, l1 []*exprpb.Type, l2 []*exprpb.Type) bool {
+func internalIsAssignableList(m *mapping, l1, l2 []*types.Type) bool {
if len(l1) != len(l2) {
return false
}
@@ -338,41 +205,22 @@ func internalIsAssignableList(m *mapping, l1 []*exprpb.Type, l2 []*exprpb.Type)
return true
}
-// internalIsAssignableMap returns true if map m1 may be assigned to map m2.
-func internalIsAssignableMap(m *mapping, m1 *exprpb.Type_MapType, m2 *exprpb.Type_MapType) bool {
- if internalIsAssignableList(m,
- []*exprpb.Type{m1.GetKeyType(), m1.GetValueType()},
- []*exprpb.Type{m2.GetKeyType(), m2.GetValueType()}) {
- return true
- }
- return false
-}
-
// internalIsAssignableNull returns true if the type is nullable.
-func internalIsAssignableNull(t *exprpb.Type) bool {
- switch kindOf(t) {
- case kindAbstract, kindObject, kindNull, kindWellKnown, kindWrapper:
- return true
- default:
- return false
- }
+func internalIsAssignableNull(t *types.Type) bool {
+ return isLegacyNullable(t) || t.IsAssignableType(types.NullType)
}
-// internalIsAssignablePrimitive returns true if the target type is the same or if it is a wrapper
-// for the primitive type.
-func internalIsAssignablePrimitive(p exprpb.Type_PrimitiveType, target *exprpb.Type) bool {
- switch kindOf(target) {
- case kindPrimitive:
- return p == target.GetPrimitive()
- case kindWrapper:
- return p == target.GetWrapper()
- default:
- return false
+// isLegacyNullable preserves the null-ness compatibility of the original type-checker implementation.
+func isLegacyNullable(t *types.Type) bool {
+ switch t.Kind() {
+ case types.OpaqueKind, types.StructKind, types.AnyKind, types.DurationKind, types.TimestampKind:
+ return true
}
+ return false
}
// isAssignable returns an updated type substitution mapping if t1 is assignable to t2.
-func isAssignable(m *mapping, t1 *exprpb.Type, t2 *exprpb.Type) *mapping {
+func isAssignable(m *mapping, t1, t2 *types.Type) *mapping {
mCopy := m.copy()
if internalIsAssignable(mCopy, t1, t2) {
return mCopy
@@ -381,7 +229,7 @@ func isAssignable(m *mapping, t1 *exprpb.Type, t2 *exprpb.Type) *mapping {
}
// isAssignableList returns an updated type substitution mapping if l1 is assignable to l2.
-func isAssignableList(m *mapping, l1 []*exprpb.Type, l2 []*exprpb.Type) *mapping {
+func isAssignableList(m *mapping, l1, l2 []*types.Type) *mapping {
mCopy := m.copy()
if internalIsAssignableList(mCopy, l1, l2) {
return mCopy
@@ -389,44 +237,8 @@ func isAssignableList(m *mapping, l1 []*exprpb.Type, l2 []*exprpb.Type) *mapping
return nil
}
-// kindOf returns the kind of the type as defined in the checked.proto.
-func kindOf(t *exprpb.Type) int {
- if t == nil || t.TypeKind == nil {
- return kindUnknown
- }
- switch t.GetTypeKind().(type) {
- case *exprpb.Type_Error:
- return kindError
- case *exprpb.Type_Function:
- return kindFunction
- case *exprpb.Type_Dyn:
- return kindDyn
- case *exprpb.Type_Primitive:
- return kindPrimitive
- case *exprpb.Type_WellKnown:
- return kindWellKnown
- case *exprpb.Type_Wrapper:
- return kindWrapper
- case *exprpb.Type_Null:
- return kindNull
- case *exprpb.Type_Type:
- return kindType
- case *exprpb.Type_ListType_:
- return kindList
- case *exprpb.Type_MapType_:
- return kindMap
- case *exprpb.Type_MessageType:
- return kindObject
- case *exprpb.Type_TypeParam:
- return kindTypeParam
- case *exprpb.Type_AbstractType_:
- return kindAbstract
- }
- return kindUnknown
-}
-
// mostGeneral returns the more general of two types which are known to unify.
-func mostGeneral(t1 *exprpb.Type, t2 *exprpb.Type) *exprpb.Type {
+func mostGeneral(t1, t2 *types.Type) *types.Type {
if isEqualOrLessSpecific(t1, t2) {
return t1
}
@@ -436,32 +248,25 @@ func mostGeneral(t1 *exprpb.Type, t2 *exprpb.Type) *exprpb.Type {
// notReferencedIn checks whether the type doesn't appear directly or transitively within the other
// type. This is a standard requirement for type unification, commonly referred to as the "occurs
// check".
-func notReferencedIn(m *mapping, t *exprpb.Type, withinType *exprpb.Type) bool {
- if proto.Equal(t, withinType) {
+func notReferencedIn(m *mapping, t, withinType *types.Type) bool {
+ if t.IsExactType(withinType) {
return false
}
- withinKind := kindOf(withinType)
+ withinKind := withinType.Kind()
switch withinKind {
- case kindTypeParam:
+ case types.TypeParamKind:
wtSub, found := m.find(withinType)
if !found {
return true
}
return notReferencedIn(m, t, wtSub)
- case kindAbstract:
- for _, pt := range withinType.GetAbstractType().GetParameterTypes() {
+ case types.OpaqueKind, types.ListKind, types.MapKind, types.TypeKind:
+ for _, pt := range withinType.Parameters() {
if !notReferencedIn(m, t, pt) {
return false
}
}
return true
- case kindList:
- return notReferencedIn(m, t, withinType.GetListType().GetElemType())
- case kindMap:
- mt := withinType.GetMapType()
- return notReferencedIn(m, t, mt.GetKeyType()) && notReferencedIn(m, t, mt.GetValueType())
- case kindWrapper:
- return notReferencedIn(m, t, decls.NewPrimitiveType(withinType.GetWrapper()))
default:
return true
}
@@ -469,39 +274,26 @@ func notReferencedIn(m *mapping, t *exprpb.Type, withinType *exprpb.Type) bool {
// substitute replaces all direct and indirect occurrences of bound type parameters. Unbound type
// parameters are replaced by DYN if typeParamToDyn is true.
-func substitute(m *mapping, t *exprpb.Type, typeParamToDyn bool) *exprpb.Type {
+func substitute(m *mapping, t *types.Type, typeParamToDyn bool) *types.Type {
if tSub, found := m.find(t); found {
return substitute(m, tSub, typeParamToDyn)
}
- kind := kindOf(t)
- if typeParamToDyn && kind == kindTypeParam {
- return decls.Dyn
+ kind := t.Kind()
+ if typeParamToDyn && kind == types.TypeParamKind {
+ return types.DynType
}
switch kind {
- case kindAbstract:
- at := t.GetAbstractType()
- params := make([]*exprpb.Type, len(at.GetParameterTypes()))
- for i, p := range at.GetParameterTypes() {
- params[i] = substitute(m, p, typeParamToDyn)
- }
- return decls.NewAbstractType(at.GetName(), params...)
- case kindFunction:
- fn := t.GetFunction()
- rt := substitute(m, fn.ResultType, typeParamToDyn)
- args := make([]*exprpb.Type, len(fn.GetArgTypes()))
- for i, a := range fn.ArgTypes {
- args[i] = substitute(m, a, typeParamToDyn)
- }
- return decls.NewFunctionType(rt, args...)
- case kindList:
- return decls.NewListType(substitute(m, t.GetListType().GetElemType(), typeParamToDyn))
- case kindMap:
- mt := t.GetMapType()
- return decls.NewMapType(substitute(m, mt.GetKeyType(), typeParamToDyn),
- substitute(m, mt.GetValueType(), typeParamToDyn))
- case kindType:
- if t.GetType() != nil {
- return decls.NewTypeType(substitute(m, t.GetType(), typeParamToDyn))
+ case types.OpaqueKind:
+ return types.NewOpaqueType(t.TypeName(), substituteParams(m, t.Parameters(), typeParamToDyn)...)
+ case types.ListKind:
+ return types.NewListType(substitute(m, t.Parameters()[0], typeParamToDyn))
+ case types.MapKind:
+ return types.NewMapType(substitute(m, t.Parameters()[0], typeParamToDyn),
+ substitute(m, t.Parameters()[1], typeParamToDyn))
+ case types.TypeKind:
+ if len(t.Parameters()) > 0 {
+ tParam := t.Parameters()[0]
+ return types.NewTypeTypeWithParam(substitute(m, tParam, typeParamToDyn))
}
return t
default:
@@ -509,21 +301,14 @@ func substitute(m *mapping, t *exprpb.Type, typeParamToDyn bool) *exprpb.Type {
}
}
-func typeKey(t *exprpb.Type) string {
- return FormatCheckedType(t)
+func substituteParams(m *mapping, typeParams []*types.Type, typeParamToDyn bool) []*types.Type {
+ subParams := make([]*types.Type, len(typeParams))
+ for i, tp := range typeParams {
+ subParams[i] = substitute(m, tp, typeParamToDyn)
+ }
+ return subParams
}
-// flattenFunctionTypes takes a function with arg types T1, T2, ..., TN and result type TR
-// and returns a slice containing {T1, T2, ..., TN, TR}.
-func flattenFunctionTypes(f *exprpb.Type_FunctionType) []*exprpb.Type {
- argTypes := f.GetArgTypes()
- if len(argTypes) == 0 {
- return []*exprpb.Type{f.GetResultType()}
- }
- flattend := make([]*exprpb.Type, len(argTypes)+1, len(argTypes)+1)
- for i, at := range argTypes {
- flattend[i] = at
- }
- flattend[len(argTypes)] = f.GetResultType()
- return flattend
+func newFunctionType(resultType *types.Type, argTypes ...*types.Type) *types.Type {
+ return types.NewOpaqueType("function", append([]*types.Type{resultType}, argTypes...)...)
}
diff --git a/vendor/github.com/google/cel-go/common/BUILD.bazel b/vendor/github.com/google/cel-go/common/BUILD.bazel
index a0058ae..eef7f28 100644
--- a/vendor/github.com/google/cel-go/common/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/common/BUILD.bazel
@@ -17,8 +17,7 @@ go_library(
importpath = "github.com/google/cel-go/common",
deps = [
"//common/runes:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
- "@org_golang_x_text//width:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
],
)
diff --git a/vendor/github.com/google/cel-go/common/ast/BUILD.bazel b/vendor/github.com/google/cel-go/common/ast/BUILD.bazel
new file mode 100644
index 0000000..9824f57
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/ast/BUILD.bazel
@@ -0,0 +1,57 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+package(
+ default_visibility = ["//visibility:public"],
+ licenses = ["notice"], # Apache 2.0
+)
+
+go_library(
+ name = "go_default_library",
+ srcs = [
+ "ast.go",
+ "conversion.go",
+ "expr.go",
+ "factory.go",
+ "navigable.go",
+ ],
+ importpath = "github.com/google/cel-go/common/ast",
+ deps = [
+ "//common:go_default_library",
+ "//common/types:go_default_library",
+ "//common/types/ref:go_default_library",
+ "@dev_cel_expr//:expr",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
+ "@org_golang_google_protobuf//proto:go_default_library",
+ "@org_golang_google_protobuf//types/known/structpb:go_default_library",
+ ],
+)
+
+go_test(
+ name = "go_default_test",
+ srcs = [
+ "ast_test.go",
+ "conversion_test.go",
+ "expr_test.go",
+ "navigable_test.go",
+ ],
+ embed = [
+ ":go_default_library",
+ ],
+ deps = [
+ "//checker:go_default_library",
+ "//checker/decls:go_default_library",
+ "//common:go_default_library",
+ "//common/containers:go_default_library",
+ "//common/decls:go_default_library",
+ "//common/operators:go_default_library",
+ "//common/overloads:go_default_library",
+ "//common/stdlib:go_default_library",
+ "//common/types:go_default_library",
+ "//common/types/ref:go_default_library",
+ "//parser:go_default_library",
+ "//test/proto3pb:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
+ "@org_golang_google_protobuf//proto:go_default_library",
+ "@org_golang_google_protobuf//encoding/prototext:go_default_library",
+ ],
+)
diff --git a/vendor/github.com/google/cel-go/common/ast/ast.go b/vendor/github.com/google/cel-go/common/ast/ast.go
new file mode 100644
index 0000000..b807669
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/ast/ast.go
@@ -0,0 +1,457 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package ast declares data structures useful for parsed and checked abstract syntax trees
+package ast
+
+import (
+ "github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+)
+
+// AST contains a protobuf expression and source info along with CEL-native type and reference information.
+type AST struct {
+ expr Expr
+ sourceInfo *SourceInfo
+ typeMap map[int64]*types.Type
+ refMap map[int64]*ReferenceInfo
+}
+
+// Expr returns the root ast.Expr value in the AST.
+func (a *AST) Expr() Expr {
+ if a == nil {
+ return nilExpr
+ }
+ return a.expr
+}
+
+// SourceInfo returns the source metadata associated with the parse / type-check passes.
+func (a *AST) SourceInfo() *SourceInfo {
+ if a == nil {
+ return nil
+ }
+ return a.sourceInfo
+}
+
+// GetType returns the type for the expression at the given id, if one exists, else types.DynType.
+func (a *AST) GetType(id int64) *types.Type {
+ if t, found := a.TypeMap()[id]; found {
+ return t
+ }
+ return types.DynType
+}
+
+// SetType sets the type of the expression node at the given id.
+func (a *AST) SetType(id int64, t *types.Type) {
+ if a == nil {
+ return
+ }
+ a.typeMap[id] = t
+}
+
+// TypeMap returns the map of expression ids to type-checked types.
+//
+// If the AST is not type-checked, the map will be empty.
+func (a *AST) TypeMap() map[int64]*types.Type {
+ if a == nil {
+ return map[int64]*types.Type{}
+ }
+ return a.typeMap
+}
+
+// GetOverloadIDs returns the set of overload function names for a given expression id.
+//
+// If the expression id is not a function call, or the AST is not type-checked, the result will be empty.
+func (a *AST) GetOverloadIDs(id int64) []string {
+ if ref, found := a.ReferenceMap()[id]; found {
+ return ref.OverloadIDs
+ }
+ return []string{}
+}
+
+// ReferenceMap returns the map of expression id to identifier, constant, and function references.
+func (a *AST) ReferenceMap() map[int64]*ReferenceInfo {
+ if a == nil {
+ return map[int64]*ReferenceInfo{}
+ }
+ return a.refMap
+}
+
+// SetReference adds a reference to the checked AST type map.
+func (a *AST) SetReference(id int64, r *ReferenceInfo) {
+ if a == nil {
+ return
+ }
+ a.refMap[id] = r
+}
+
+// IsChecked returns whether the AST is type-checked.
+func (a *AST) IsChecked() bool {
+ return a != nil && len(a.TypeMap()) > 0
+}
+
+// NewAST creates a base AST instance with an ast.Expr and ast.SourceInfo value.
+func NewAST(e Expr, sourceInfo *SourceInfo) *AST {
+ if e == nil {
+ e = nilExpr
+ }
+ return &AST{
+ expr: e,
+ sourceInfo: sourceInfo,
+ typeMap: make(map[int64]*types.Type),
+ refMap: make(map[int64]*ReferenceInfo),
+ }
+}
+
+// NewCheckedAST wraps an parsed AST and augments it with type and reference metadata.
+func NewCheckedAST(parsed *AST, typeMap map[int64]*types.Type, refMap map[int64]*ReferenceInfo) *AST {
+ return &AST{
+ expr: parsed.Expr(),
+ sourceInfo: parsed.SourceInfo(),
+ typeMap: typeMap,
+ refMap: refMap,
+ }
+}
+
+// Copy creates a deep copy of the Expr and SourceInfo values in the input AST.
+//
+// Copies of the Expr value are generated using an internal default ExprFactory.
+func Copy(a *AST) *AST {
+ if a == nil {
+ return nil
+ }
+ e := defaultFactory.CopyExpr(a.expr)
+ if !a.IsChecked() {
+ return NewAST(e, CopySourceInfo(a.SourceInfo()))
+ }
+ typesCopy := make(map[int64]*types.Type, len(a.typeMap))
+ for id, t := range a.typeMap {
+ typesCopy[id] = t
+ }
+ refsCopy := make(map[int64]*ReferenceInfo, len(a.refMap))
+ for id, r := range a.refMap {
+ refsCopy[id] = r
+ }
+ return NewCheckedAST(NewAST(e, CopySourceInfo(a.SourceInfo())), typesCopy, refsCopy)
+}
+
+// MaxID returns the upper-bound, non-inclusive, of ids present within the AST's Expr value.
+func MaxID(a *AST) int64 {
+ visitor := &maxIDVisitor{maxID: 1}
+ PostOrderVisit(a.Expr(), visitor)
+ for id, call := range a.SourceInfo().MacroCalls() {
+ PostOrderVisit(call, visitor)
+ if id > visitor.maxID {
+ visitor.maxID = id + 1
+ }
+ }
+ return visitor.maxID + 1
+}
+
+// NewSourceInfo creates a simple SourceInfo object from an input common.Source value.
+func NewSourceInfo(src common.Source) *SourceInfo {
+ var lineOffsets []int32
+ var desc string
+ baseLine := int32(0)
+ baseCol := int32(0)
+ if src != nil {
+ desc = src.Description()
+ lineOffsets = src.LineOffsets()
+ // Determine whether the source metadata should be computed relative
+ // to a base line and column value. This can be determined by requesting
+ // the location for offset 0 from the source object.
+ if loc, found := src.OffsetLocation(0); found {
+ baseLine = int32(loc.Line()) - 1
+ baseCol = int32(loc.Column())
+ }
+ }
+ return &SourceInfo{
+ desc: desc,
+ lines: lineOffsets,
+ baseLine: baseLine,
+ baseCol: baseCol,
+ offsetRanges: make(map[int64]OffsetRange),
+ macroCalls: make(map[int64]Expr),
+ }
+}
+
+// CopySourceInfo creates a deep copy of the MacroCalls within the input SourceInfo.
+//
+// Copies of macro Expr values are generated using an internal default ExprFactory.
+func CopySourceInfo(info *SourceInfo) *SourceInfo {
+ if info == nil {
+ return nil
+ }
+ rangesCopy := make(map[int64]OffsetRange, len(info.offsetRanges))
+ for id, off := range info.offsetRanges {
+ rangesCopy[id] = off
+ }
+ callsCopy := make(map[int64]Expr, len(info.macroCalls))
+ for id, call := range info.macroCalls {
+ callsCopy[id] = defaultFactory.CopyExpr(call)
+ }
+ return &SourceInfo{
+ syntax: info.syntax,
+ desc: info.desc,
+ lines: info.lines,
+ baseLine: info.baseLine,
+ baseCol: info.baseCol,
+ offsetRanges: rangesCopy,
+ macroCalls: callsCopy,
+ }
+}
+
+// SourceInfo records basic information about the expression as a textual input and
+// as a parsed expression value.
+type SourceInfo struct {
+ syntax string
+ desc string
+ lines []int32
+ baseLine int32
+ baseCol int32
+ offsetRanges map[int64]OffsetRange
+ macroCalls map[int64]Expr
+}
+
+// SyntaxVersion returns the syntax version associated with the text expression.
+func (s *SourceInfo) SyntaxVersion() string {
+ if s == nil {
+ return ""
+ }
+ return s.syntax
+}
+
+// Description provides information about where the expression came from.
+func (s *SourceInfo) Description() string {
+ if s == nil {
+ return ""
+ }
+ return s.desc
+}
+
+// LineOffsets returns a list of the 0-based character offsets in the input text where newlines appear.
+func (s *SourceInfo) LineOffsets() []int32 {
+ if s == nil {
+ return []int32{}
+ }
+ return s.lines
+}
+
+// MacroCalls returns a map of expression id to ast.Expr value where the id represents the expression
+// node where the macro was inserted into the AST, and the ast.Expr value represents the original call
+// signature which was replaced.
+func (s *SourceInfo) MacroCalls() map[int64]Expr {
+ if s == nil {
+ return map[int64]Expr{}
+ }
+ return s.macroCalls
+}
+
+// GetMacroCall returns the original ast.Expr value for the given expression if it was generated via
+// a macro replacement.
+//
+// Note, parsing options must be enabled to track macro calls before this method will return a value.
+func (s *SourceInfo) GetMacroCall(id int64) (Expr, bool) {
+ e, found := s.MacroCalls()[id]
+ return e, found
+}
+
+// SetMacroCall records a macro call at a specific location.
+func (s *SourceInfo) SetMacroCall(id int64, e Expr) {
+ if s != nil {
+ s.macroCalls[id] = e
+ }
+}
+
+// ClearMacroCall removes the macro call at the given expression id.
+func (s *SourceInfo) ClearMacroCall(id int64) {
+ if s != nil {
+ delete(s.macroCalls, id)
+ }
+}
+
+// OffsetRanges returns a map of expression id to OffsetRange values where the range indicates either:
+// the start and end position in the input stream where the expression occurs, or the start position
+// only. If the range only captures start position, the stop position of the range will be equal to
+// the start.
+func (s *SourceInfo) OffsetRanges() map[int64]OffsetRange {
+ if s == nil {
+ return map[int64]OffsetRange{}
+ }
+ return s.offsetRanges
+}
+
+// GetOffsetRange retrieves an OffsetRange for the given expression id if one exists.
+func (s *SourceInfo) GetOffsetRange(id int64) (OffsetRange, bool) {
+ if s == nil {
+ return OffsetRange{}, false
+ }
+ o, found := s.offsetRanges[id]
+ return o, found
+}
+
+// SetOffsetRange sets the OffsetRange for the given expression id.
+func (s *SourceInfo) SetOffsetRange(id int64, o OffsetRange) {
+ if s == nil {
+ return
+ }
+ s.offsetRanges[id] = o
+}
+
+// ClearOffsetRange removes the OffsetRange for the given expression id.
+func (s *SourceInfo) ClearOffsetRange(id int64) {
+ if s != nil {
+ delete(s.offsetRanges, id)
+ }
+}
+
+// GetStartLocation calculates the human-readable 1-based line and 0-based column of the first character
+// of the expression node at the id.
+func (s *SourceInfo) GetStartLocation(id int64) common.Location {
+ if o, found := s.GetOffsetRange(id); found {
+ return s.GetLocationByOffset(o.Start)
+ }
+ return common.NoLocation
+}
+
+// GetStopLocation calculates the human-readable 1-based line and 0-based column of the last character for
+// the expression node at the given id.
+//
+// If the SourceInfo was generated from a serialized protobuf representation, the stop location will
+// be identical to the start location for the expression.
+func (s *SourceInfo) GetStopLocation(id int64) common.Location {
+ if o, found := s.GetOffsetRange(id); found {
+ return s.GetLocationByOffset(o.Stop)
+ }
+ return common.NoLocation
+}
+
+// GetLocationByOffset returns the line and column information for a given character offset.
+func (s *SourceInfo) GetLocationByOffset(offset int32) common.Location {
+ line := 1
+ col := int(offset)
+ for _, lineOffset := range s.LineOffsets() {
+ if lineOffset > offset {
+ break
+ }
+ line++
+ col = int(offset - lineOffset)
+ }
+ return common.NewLocation(line, col)
+}
+
+// ComputeOffset calculates the 0-based character offset from a 1-based line and 0-based column.
+func (s *SourceInfo) ComputeOffset(line, col int32) int32 {
+ if s != nil {
+ line = s.baseLine + line
+ col = s.baseCol + col
+ }
+ if line == 1 {
+ return col
+ }
+ if line < 1 || line > int32(len(s.LineOffsets())) {
+ return -1
+ }
+ offset := s.LineOffsets()[line-2]
+ return offset + col
+}
+
+// OffsetRange captures the start and stop positions of a section of text in the input expression.
+type OffsetRange struct {
+ Start int32
+ Stop int32
+}
+
+// ReferenceInfo contains a CEL native representation of an identifier reference which may refer to
+// either a qualified identifier name, a set of overload ids, or a constant value from an enum.
+type ReferenceInfo struct {
+ Name string
+ OverloadIDs []string
+ Value ref.Val
+}
+
+// NewIdentReference creates a ReferenceInfo instance for an identifier with an optional constant value.
+func NewIdentReference(name string, value ref.Val) *ReferenceInfo {
+ return &ReferenceInfo{Name: name, Value: value}
+}
+
+// NewFunctionReference creates a ReferenceInfo instance for a set of function overloads.
+func NewFunctionReference(overloads ...string) *ReferenceInfo {
+ info := &ReferenceInfo{}
+ for _, id := range overloads {
+ info.AddOverload(id)
+ }
+ return info
+}
+
+// AddOverload appends a function overload ID to the ReferenceInfo.
+func (r *ReferenceInfo) AddOverload(overloadID string) {
+ for _, id := range r.OverloadIDs {
+ if id == overloadID {
+ return
+ }
+ }
+ r.OverloadIDs = append(r.OverloadIDs, overloadID)
+}
+
+// Equals returns whether two references are identical to each other.
+func (r *ReferenceInfo) Equals(other *ReferenceInfo) bool {
+ if r.Name != other.Name {
+ return false
+ }
+ if len(r.OverloadIDs) != len(other.OverloadIDs) {
+ return false
+ }
+ if len(r.OverloadIDs) != 0 {
+ overloadMap := make(map[string]struct{}, len(r.OverloadIDs))
+ for _, id := range r.OverloadIDs {
+ overloadMap[id] = struct{}{}
+ }
+ for _, id := range other.OverloadIDs {
+ _, found := overloadMap[id]
+ if !found {
+ return false
+ }
+ }
+ }
+ if r.Value == nil && other.Value == nil {
+ return true
+ }
+ if r.Value == nil && other.Value != nil ||
+ r.Value != nil && other.Value == nil ||
+ r.Value.Equal(other.Value) != types.True {
+ return false
+ }
+ return true
+}
+
+type maxIDVisitor struct {
+ maxID int64
+ *baseVisitor
+}
+
+// VisitExpr updates the max identifier if the incoming expression id is greater than previously observed.
+func (v *maxIDVisitor) VisitExpr(e Expr) {
+ if v.maxID < e.ID() {
+ v.maxID = e.ID()
+ }
+}
+
+// VisitEntryExpr updates the max identifier if the incoming entry id is greater than previously observed.
+func (v *maxIDVisitor) VisitEntryExpr(e EntryExpr) {
+ if v.maxID < e.ID() {
+ v.maxID = e.ID()
+ }
+}
diff --git a/vendor/github.com/google/cel-go/common/ast/conversion.go b/vendor/github.com/google/cel-go/common/ast/conversion.go
new file mode 100644
index 0000000..435d8f6
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/ast/conversion.go
@@ -0,0 +1,659 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ast
+
+import (
+ "fmt"
+
+ "google.golang.org/protobuf/proto"
+
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+
+ celpb "cel.dev/expr"
+ exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ structpb "google.golang.org/protobuf/types/known/structpb"
+)
+
+// ToProto converts an AST to a CheckedExpr protobouf.
+func ToProto(ast *AST) (*exprpb.CheckedExpr, error) {
+ refMap := make(map[int64]*exprpb.Reference, len(ast.ReferenceMap()))
+ for id, ref := range ast.ReferenceMap() {
+ r, err := ReferenceInfoToProto(ref)
+ if err != nil {
+ return nil, err
+ }
+ refMap[id] = r
+ }
+ typeMap := make(map[int64]*exprpb.Type, len(ast.TypeMap()))
+ for id, typ := range ast.TypeMap() {
+ t, err := types.TypeToExprType(typ)
+ if err != nil {
+ return nil, err
+ }
+ typeMap[id] = t
+ }
+ e, err := ExprToProto(ast.Expr())
+ if err != nil {
+ return nil, err
+ }
+ info, err := SourceInfoToProto(ast.SourceInfo())
+ if err != nil {
+ return nil, err
+ }
+ return &exprpb.CheckedExpr{
+ Expr: e,
+ SourceInfo: info,
+ ReferenceMap: refMap,
+ TypeMap: typeMap,
+ }, nil
+}
+
+// ToAST converts a CheckedExpr protobuf to an AST instance.
+func ToAST(checked *exprpb.CheckedExpr) (*AST, error) {
+ refMap := make(map[int64]*ReferenceInfo, len(checked.GetReferenceMap()))
+ for id, ref := range checked.GetReferenceMap() {
+ r, err := ProtoToReferenceInfo(ref)
+ if err != nil {
+ return nil, err
+ }
+ refMap[id] = r
+ }
+ typeMap := make(map[int64]*types.Type, len(checked.GetTypeMap()))
+ for id, typ := range checked.GetTypeMap() {
+ t, err := types.ExprTypeToType(typ)
+ if err != nil {
+ return nil, err
+ }
+ typeMap[id] = t
+ }
+ info, err := ProtoToSourceInfo(checked.GetSourceInfo())
+ if err != nil {
+ return nil, err
+ }
+ root, err := ProtoToExpr(checked.GetExpr())
+ if err != nil {
+ return nil, err
+ }
+ ast := NewCheckedAST(NewAST(root, info), typeMap, refMap)
+ return ast, nil
+}
+
+// ProtoToExpr converts a protobuf Expr value to an ast.Expr value.
+func ProtoToExpr(e *exprpb.Expr) (Expr, error) {
+ factory := NewExprFactory()
+ return exprInternal(factory, e)
+}
+
+// ProtoToEntryExpr converts a protobuf struct/map entry to an ast.EntryExpr
+func ProtoToEntryExpr(e *exprpb.Expr_CreateStruct_Entry) (EntryExpr, error) {
+ factory := NewExprFactory()
+ switch e.GetKeyKind().(type) {
+ case *exprpb.Expr_CreateStruct_Entry_FieldKey:
+ return exprStructField(factory, e.GetId(), e)
+ case *exprpb.Expr_CreateStruct_Entry_MapKey:
+ return exprMapEntry(factory, e.GetId(), e)
+ }
+ return nil, fmt.Errorf("unsupported expr entry kind: %v", e)
+}
+
+func exprInternal(factory ExprFactory, e *exprpb.Expr) (Expr, error) {
+ id := e.GetId()
+ switch e.GetExprKind().(type) {
+ case *exprpb.Expr_CallExpr:
+ return exprCall(factory, id, e.GetCallExpr())
+ case *exprpb.Expr_ComprehensionExpr:
+ return exprComprehension(factory, id, e.GetComprehensionExpr())
+ case *exprpb.Expr_ConstExpr:
+ return exprLiteral(factory, id, e.GetConstExpr())
+ case *exprpb.Expr_IdentExpr:
+ return exprIdent(factory, id, e.GetIdentExpr())
+ case *exprpb.Expr_ListExpr:
+ return exprList(factory, id, e.GetListExpr())
+ case *exprpb.Expr_SelectExpr:
+ return exprSelect(factory, id, e.GetSelectExpr())
+ case *exprpb.Expr_StructExpr:
+ s := e.GetStructExpr()
+ if s.GetMessageName() != "" {
+ return exprStruct(factory, id, s)
+ }
+ return exprMap(factory, id, s)
+ }
+ return factory.NewUnspecifiedExpr(id), nil
+}
+
+func exprCall(factory ExprFactory, id int64, call *exprpb.Expr_Call) (Expr, error) {
+ var err error
+ args := make([]Expr, len(call.GetArgs()))
+ for i, a := range call.GetArgs() {
+ args[i], err = exprInternal(factory, a)
+ if err != nil {
+ return nil, err
+ }
+ }
+ if call.GetTarget() == nil {
+ return factory.NewCall(id, call.GetFunction(), args...), nil
+ }
+
+ target, err := exprInternal(factory, call.GetTarget())
+ if err != nil {
+ return nil, err
+ }
+ return factory.NewMemberCall(id, call.GetFunction(), target, args...), nil
+}
+
+func exprComprehension(factory ExprFactory, id int64, comp *exprpb.Expr_Comprehension) (Expr, error) {
+ iterRange, err := exprInternal(factory, comp.GetIterRange())
+ if err != nil {
+ return nil, err
+ }
+ accuInit, err := exprInternal(factory, comp.GetAccuInit())
+ if err != nil {
+ return nil, err
+ }
+ loopCond, err := exprInternal(factory, comp.GetLoopCondition())
+ if err != nil {
+ return nil, err
+ }
+ loopStep, err := exprInternal(factory, comp.GetLoopStep())
+ if err != nil {
+ return nil, err
+ }
+ result, err := exprInternal(factory, comp.GetResult())
+ if err != nil {
+ return nil, err
+ }
+ return factory.NewComprehensionTwoVar(id,
+ iterRange,
+ comp.GetIterVar(),
+ comp.GetIterVar2(),
+ comp.GetAccuVar(),
+ accuInit,
+ loopCond,
+ loopStep,
+ result), nil
+}
+
+func exprLiteral(factory ExprFactory, id int64, c *exprpb.Constant) (Expr, error) {
+ val, err := ConstantToVal(c)
+ if err != nil {
+ return nil, err
+ }
+ return factory.NewLiteral(id, val), nil
+}
+
+func exprIdent(factory ExprFactory, id int64, i *exprpb.Expr_Ident) (Expr, error) {
+ return factory.NewIdent(id, i.GetName()), nil
+}
+
+func exprList(factory ExprFactory, id int64, l *exprpb.Expr_CreateList) (Expr, error) {
+ elems := make([]Expr, len(l.GetElements()))
+ for i, e := range l.GetElements() {
+ elem, err := exprInternal(factory, e)
+ if err != nil {
+ return nil, err
+ }
+ elems[i] = elem
+ }
+ return factory.NewList(id, elems, l.GetOptionalIndices()), nil
+}
+
+func exprMap(factory ExprFactory, id int64, s *exprpb.Expr_CreateStruct) (Expr, error) {
+ entries := make([]EntryExpr, len(s.GetEntries()))
+ var err error
+ for i, entry := range s.GetEntries() {
+ entries[i], err = exprMapEntry(factory, entry.GetId(), entry)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return factory.NewMap(id, entries), nil
+}
+
+func exprMapEntry(factory ExprFactory, id int64, e *exprpb.Expr_CreateStruct_Entry) (EntryExpr, error) {
+ k, err := exprInternal(factory, e.GetMapKey())
+ if err != nil {
+ return nil, err
+ }
+ v, err := exprInternal(factory, e.GetValue())
+ if err != nil {
+ return nil, err
+ }
+ return factory.NewMapEntry(id, k, v, e.GetOptionalEntry()), nil
+}
+
+func exprSelect(factory ExprFactory, id int64, s *exprpb.Expr_Select) (Expr, error) {
+ op, err := exprInternal(factory, s.GetOperand())
+ if err != nil {
+ return nil, err
+ }
+ if s.GetTestOnly() {
+ return factory.NewPresenceTest(id, op, s.GetField()), nil
+ }
+ return factory.NewSelect(id, op, s.GetField()), nil
+}
+
+func exprStruct(factory ExprFactory, id int64, s *exprpb.Expr_CreateStruct) (Expr, error) {
+ fields := make([]EntryExpr, len(s.GetEntries()))
+ var err error
+ for i, field := range s.GetEntries() {
+ fields[i], err = exprStructField(factory, field.GetId(), field)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return factory.NewStruct(id, s.GetMessageName(), fields), nil
+}
+
+func exprStructField(factory ExprFactory, id int64, f *exprpb.Expr_CreateStruct_Entry) (EntryExpr, error) {
+ v, err := exprInternal(factory, f.GetValue())
+ if err != nil {
+ return nil, err
+ }
+ return factory.NewStructField(id, f.GetFieldKey(), v, f.GetOptionalEntry()), nil
+}
+
+// ExprToProto serializes an ast.Expr value to a protobuf Expr representation.
+func ExprToProto(e Expr) (*exprpb.Expr, error) {
+ if e == nil {
+ return &exprpb.Expr{}, nil
+ }
+ switch e.Kind() {
+ case CallKind:
+ return protoCall(e.ID(), e.AsCall())
+ case ComprehensionKind:
+ return protoComprehension(e.ID(), e.AsComprehension())
+ case IdentKind:
+ return protoIdent(e.ID(), e.AsIdent())
+ case ListKind:
+ return protoList(e.ID(), e.AsList())
+ case LiteralKind:
+ return protoLiteral(e.ID(), e.AsLiteral())
+ case MapKind:
+ return protoMap(e.ID(), e.AsMap())
+ case SelectKind:
+ return protoSelect(e.ID(), e.AsSelect())
+ case StructKind:
+ return protoStruct(e.ID(), e.AsStruct())
+ case UnspecifiedExprKind:
+ // Handle the case where a macro reference may be getting translated.
+ // A nested macro 'pointer' is a non-zero expression id with no kind set.
+ if e.ID() != 0 {
+ return &exprpb.Expr{Id: e.ID()}, nil
+ }
+ return &exprpb.Expr{}, nil
+ }
+ return nil, fmt.Errorf("unsupported expr kind: %v", e)
+}
+
+// EntryExprToProto converts an ast.EntryExpr to a protobuf CreateStruct entry
+func EntryExprToProto(e EntryExpr) (*exprpb.Expr_CreateStruct_Entry, error) {
+ switch e.Kind() {
+ case MapEntryKind:
+ return protoMapEntry(e.ID(), e.AsMapEntry())
+ case StructFieldKind:
+ return protoStructField(e.ID(), e.AsStructField())
+ case UnspecifiedEntryExprKind:
+ return &exprpb.Expr_CreateStruct_Entry{}, nil
+ }
+ return nil, fmt.Errorf("unsupported expr entry kind: %v", e)
+}
+
+func protoCall(id int64, call CallExpr) (*exprpb.Expr, error) {
+ var err error
+ var target *exprpb.Expr
+ if call.IsMemberFunction() {
+ target, err = ExprToProto(call.Target())
+ if err != nil {
+ return nil, err
+ }
+ }
+ callArgs := call.Args()
+ args := make([]*exprpb.Expr, len(callArgs))
+ for i, a := range callArgs {
+ args[i], err = ExprToProto(a)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return &exprpb.Expr{
+ Id: id,
+ ExprKind: &exprpb.Expr_CallExpr{
+ CallExpr: &exprpb.Expr_Call{
+ Function: call.FunctionName(),
+ Target: target,
+ Args: args,
+ },
+ },
+ }, nil
+}
+
+func protoComprehension(id int64, comp ComprehensionExpr) (*exprpb.Expr, error) {
+ iterRange, err := ExprToProto(comp.IterRange())
+ if err != nil {
+ return nil, err
+ }
+ accuInit, err := ExprToProto(comp.AccuInit())
+ if err != nil {
+ return nil, err
+ }
+ loopCond, err := ExprToProto(comp.LoopCondition())
+ if err != nil {
+ return nil, err
+ }
+ loopStep, err := ExprToProto(comp.LoopStep())
+ if err != nil {
+ return nil, err
+ }
+ result, err := ExprToProto(comp.Result())
+ if err != nil {
+ return nil, err
+ }
+ return &exprpb.Expr{
+ Id: id,
+ ExprKind: &exprpb.Expr_ComprehensionExpr{
+ ComprehensionExpr: &exprpb.Expr_Comprehension{
+ IterVar: comp.IterVar(),
+ IterVar2: comp.IterVar2(),
+ IterRange: iterRange,
+ AccuVar: comp.AccuVar(),
+ AccuInit: accuInit,
+ LoopCondition: loopCond,
+ LoopStep: loopStep,
+ Result: result,
+ },
+ },
+ }, nil
+}
+
+func protoIdent(id int64, name string) (*exprpb.Expr, error) {
+ return &exprpb.Expr{
+ Id: id,
+ ExprKind: &exprpb.Expr_IdentExpr{
+ IdentExpr: &exprpb.Expr_Ident{
+ Name: name,
+ },
+ },
+ }, nil
+}
+
+func protoList(id int64, list ListExpr) (*exprpb.Expr, error) {
+ var err error
+ elems := make([]*exprpb.Expr, list.Size())
+ for i, e := range list.Elements() {
+ elems[i], err = ExprToProto(e)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return &exprpb.Expr{
+ Id: id,
+ ExprKind: &exprpb.Expr_ListExpr{
+ ListExpr: &exprpb.Expr_CreateList{
+ Elements: elems,
+ OptionalIndices: list.OptionalIndices(),
+ },
+ },
+ }, nil
+}
+
+func protoLiteral(id int64, val ref.Val) (*exprpb.Expr, error) {
+ c, err := ValToConstant(val)
+ if err != nil {
+ return nil, err
+ }
+ return &exprpb.Expr{
+ Id: id,
+ ExprKind: &exprpb.Expr_ConstExpr{
+ ConstExpr: c,
+ },
+ }, nil
+}
+
+func protoMap(id int64, m MapExpr) (*exprpb.Expr, error) {
+ entries := make([]*exprpb.Expr_CreateStruct_Entry, len(m.Entries()))
+ var err error
+ for i, e := range m.Entries() {
+ entries[i], err = EntryExprToProto(e)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return &exprpb.Expr{
+ Id: id,
+ ExprKind: &exprpb.Expr_StructExpr{
+ StructExpr: &exprpb.Expr_CreateStruct{
+ Entries: entries,
+ },
+ },
+ }, nil
+}
+
+func protoMapEntry(id int64, e MapEntry) (*exprpb.Expr_CreateStruct_Entry, error) {
+ k, err := ExprToProto(e.Key())
+ if err != nil {
+ return nil, err
+ }
+ v, err := ExprToProto(e.Value())
+ if err != nil {
+ return nil, err
+ }
+ return &exprpb.Expr_CreateStruct_Entry{
+ Id: id,
+ KeyKind: &exprpb.Expr_CreateStruct_Entry_MapKey{
+ MapKey: k,
+ },
+ Value: v,
+ OptionalEntry: e.IsOptional(),
+ }, nil
+}
+
+func protoSelect(id int64, s SelectExpr) (*exprpb.Expr, error) {
+ op, err := ExprToProto(s.Operand())
+ if err != nil {
+ return nil, err
+ }
+ return &exprpb.Expr{
+ Id: id,
+ ExprKind: &exprpb.Expr_SelectExpr{
+ SelectExpr: &exprpb.Expr_Select{
+ Operand: op,
+ Field: s.FieldName(),
+ TestOnly: s.IsTestOnly(),
+ },
+ },
+ }, nil
+}
+
+func protoStruct(id int64, s StructExpr) (*exprpb.Expr, error) {
+ entries := make([]*exprpb.Expr_CreateStruct_Entry, len(s.Fields()))
+ var err error
+ for i, e := range s.Fields() {
+ entries[i], err = EntryExprToProto(e)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return &exprpb.Expr{
+ Id: id,
+ ExprKind: &exprpb.Expr_StructExpr{
+ StructExpr: &exprpb.Expr_CreateStruct{
+ MessageName: s.TypeName(),
+ Entries: entries,
+ },
+ },
+ }, nil
+}
+
+func protoStructField(id int64, f StructField) (*exprpb.Expr_CreateStruct_Entry, error) {
+ v, err := ExprToProto(f.Value())
+ if err != nil {
+ return nil, err
+ }
+ return &exprpb.Expr_CreateStruct_Entry{
+ Id: id,
+ KeyKind: &exprpb.Expr_CreateStruct_Entry_FieldKey{
+ FieldKey: f.Name(),
+ },
+ Value: v,
+ OptionalEntry: f.IsOptional(),
+ }, nil
+}
+
+// SourceInfoToProto serializes an ast.SourceInfo value to a protobuf SourceInfo object.
+func SourceInfoToProto(info *SourceInfo) (*exprpb.SourceInfo, error) {
+ if info == nil {
+ return &exprpb.SourceInfo{}, nil
+ }
+ sourceInfo := &exprpb.SourceInfo{
+ SyntaxVersion: info.SyntaxVersion(),
+ Location: info.Description(),
+ LineOffsets: info.LineOffsets(),
+ Positions: make(map[int64]int32, len(info.OffsetRanges())),
+ MacroCalls: make(map[int64]*exprpb.Expr, len(info.MacroCalls())),
+ }
+ for id, offset := range info.OffsetRanges() {
+ sourceInfo.Positions[id] = offset.Start
+ }
+ for id, e := range info.MacroCalls() {
+ call, err := ExprToProto(e)
+ if err != nil {
+ return nil, err
+ }
+ sourceInfo.MacroCalls[id] = call
+ }
+ return sourceInfo, nil
+}
+
+// ProtoToSourceInfo deserializes the protobuf into a native SourceInfo value.
+func ProtoToSourceInfo(info *exprpb.SourceInfo) (*SourceInfo, error) {
+ sourceInfo := &SourceInfo{
+ syntax: info.GetSyntaxVersion(),
+ desc: info.GetLocation(),
+ lines: info.GetLineOffsets(),
+ offsetRanges: make(map[int64]OffsetRange, len(info.GetPositions())),
+ macroCalls: make(map[int64]Expr, len(info.GetMacroCalls())),
+ }
+ for id, offset := range info.GetPositions() {
+ sourceInfo.SetOffsetRange(id, OffsetRange{Start: offset, Stop: offset})
+ }
+ for id, e := range info.GetMacroCalls() {
+ call, err := ProtoToExpr(e)
+ if err != nil {
+ return nil, err
+ }
+ sourceInfo.SetMacroCall(id, call)
+ }
+ return sourceInfo, nil
+}
+
+// ReferenceInfoToProto converts a ReferenceInfo instance to a protobuf Reference suitable for serialization.
+func ReferenceInfoToProto(info *ReferenceInfo) (*exprpb.Reference, error) {
+ c, err := ValToConstant(info.Value)
+ if err != nil {
+ return nil, err
+ }
+ return &exprpb.Reference{
+ Name: info.Name,
+ OverloadId: info.OverloadIDs,
+ Value: c,
+ }, nil
+}
+
+// ProtoToReferenceInfo converts a protobuf Reference into a CEL-native ReferenceInfo instance.
+func ProtoToReferenceInfo(ref *exprpb.Reference) (*ReferenceInfo, error) {
+ v, err := ConstantToVal(ref.GetValue())
+ if err != nil {
+ return nil, err
+ }
+ return &ReferenceInfo{
+ Name: ref.GetName(),
+ OverloadIDs: ref.GetOverloadId(),
+ Value: v,
+ }, nil
+}
+
+// ValToConstant converts a CEL-native ref.Val to a protobuf Constant.
+//
+// Only simple scalar types are supported by this method.
+func ValToConstant(v ref.Val) (*exprpb.Constant, error) {
+ if v == nil {
+ return nil, nil
+ }
+ switch v.Type() {
+ case types.BoolType:
+ return &exprpb.Constant{ConstantKind: &exprpb.Constant_BoolValue{BoolValue: v.Value().(bool)}}, nil
+ case types.BytesType:
+ return &exprpb.Constant{ConstantKind: &exprpb.Constant_BytesValue{BytesValue: v.Value().([]byte)}}, nil
+ case types.DoubleType:
+ return &exprpb.Constant{ConstantKind: &exprpb.Constant_DoubleValue{DoubleValue: v.Value().(float64)}}, nil
+ case types.IntType:
+ return &exprpb.Constant{ConstantKind: &exprpb.Constant_Int64Value{Int64Value: v.Value().(int64)}}, nil
+ case types.NullType:
+ return &exprpb.Constant{ConstantKind: &exprpb.Constant_NullValue{NullValue: structpb.NullValue_NULL_VALUE}}, nil
+ case types.StringType:
+ return &exprpb.Constant{ConstantKind: &exprpb.Constant_StringValue{StringValue: v.Value().(string)}}, nil
+ case types.UintType:
+ return &exprpb.Constant{ConstantKind: &exprpb.Constant_Uint64Value{Uint64Value: v.Value().(uint64)}}, nil
+ }
+ return nil, fmt.Errorf("unsupported constant kind: %v", v.Type())
+}
+
+// ConstantToVal converts a protobuf Constant to a CEL-native ref.Val.
+func ConstantToVal(c *exprpb.Constant) (ref.Val, error) {
+ return AlphaProtoConstantAsVal(c)
+}
+
+// AlphaProtoConstantAsVal converts a v1alpha1.Constant protobuf to a CEL-native ref.Val.
+func AlphaProtoConstantAsVal(c *exprpb.Constant) (ref.Val, error) {
+ if c == nil {
+ return nil, nil
+ }
+ canonical := &celpb.Constant{}
+ if err := convertProto(c, canonical); err != nil {
+ return nil, err
+ }
+ return ProtoConstantAsVal(canonical)
+}
+
+// ProtoConstantAsVal converts a canonical celpb.Constant protobuf to a CEL-native ref.Val.
+func ProtoConstantAsVal(c *celpb.Constant) (ref.Val, error) {
+ switch c.GetConstantKind().(type) {
+ case *celpb.Constant_BoolValue:
+ return types.Bool(c.GetBoolValue()), nil
+ case *celpb.Constant_BytesValue:
+ return types.Bytes(c.GetBytesValue()), nil
+ case *celpb.Constant_DoubleValue:
+ return types.Double(c.GetDoubleValue()), nil
+ case *celpb.Constant_Int64Value:
+ return types.Int(c.GetInt64Value()), nil
+ case *celpb.Constant_NullValue:
+ return types.NullValue, nil
+ case *celpb.Constant_StringValue:
+ return types.String(c.GetStringValue()), nil
+ case *celpb.Constant_Uint64Value:
+ return types.Uint(c.GetUint64Value()), nil
+ }
+ return nil, fmt.Errorf("unsupported constant kind: %v", c.GetConstantKind())
+}
+
+func convertProto(src, dst proto.Message) error {
+ pb, err := proto.Marshal(src)
+ if err != nil {
+ return err
+ }
+ err = proto.Unmarshal(pb, dst)
+ return err
+}
diff --git a/vendor/github.com/google/cel-go/common/ast/expr.go b/vendor/github.com/google/cel-go/common/ast/expr.go
new file mode 100644
index 0000000..9f55cb3
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/ast/expr.go
@@ -0,0 +1,884 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ast
+
+import (
+ "github.com/google/cel-go/common/types/ref"
+)
+
+// ExprKind represents the expression node kind.
+type ExprKind int
+
+const (
+ // UnspecifiedExprKind represents an unset expression with no specified properties.
+ UnspecifiedExprKind ExprKind = iota
+
+ // CallKind represents a function call.
+ CallKind
+
+ // ComprehensionKind represents a comprehension expression generated by a macro.
+ ComprehensionKind
+
+ // IdentKind represents a simple variable, constant, or type identifier.
+ IdentKind
+
+ // ListKind represents a list literal expression.
+ ListKind
+
+ // LiteralKind represents a primitive scalar literal.
+ LiteralKind
+
+ // MapKind represents a map literal expression.
+ MapKind
+
+ // SelectKind represents a field selection expression.
+ SelectKind
+
+ // StructKind represents a struct literal expression.
+ StructKind
+)
+
+// Expr represents the base expression node in a CEL abstract syntax tree.
+//
+// Depending on the `Kind()` value, the Expr may be converted to a concrete expression types
+// as indicated by the `As<Kind>` methods.
+type Expr interface {
+ // ID of the expression as it appears in the AST
+ ID() int64
+
+ // Kind of the expression node. See ExprKind for the valid enum values.
+ Kind() ExprKind
+
+ // AsCall adapts the expr into a CallExpr
+ //
+ // The Kind() must be equal to a CallKind for the conversion to be well-defined.
+ AsCall() CallExpr
+
+ // AsComprehension adapts the expr into a ComprehensionExpr.
+ //
+ // The Kind() must be equal to a ComprehensionKind for the conversion to be well-defined.
+ AsComprehension() ComprehensionExpr
+
+ // AsIdent adapts the expr into an identifier string.
+ //
+ // The Kind() must be equal to an IdentKind for the conversion to be well-defined.
+ AsIdent() string
+
+ // AsLiteral adapts the expr into a constant ref.Val.
+ //
+ // The Kind() must be equal to a LiteralKind for the conversion to be well-defined.
+ AsLiteral() ref.Val
+
+ // AsList adapts the expr into a ListExpr.
+ //
+ // The Kind() must be equal to a ListKind for the conversion to be well-defined.
+ AsList() ListExpr
+
+ // AsMap adapts the expr into a MapExpr.
+ //
+ // The Kind() must be equal to a MapKind for the conversion to be well-defined.
+ AsMap() MapExpr
+
+ // AsSelect adapts the expr into a SelectExpr.
+ //
+ // The Kind() must be equal to a SelectKind for the conversion to be well-defined.
+ AsSelect() SelectExpr
+
+ // AsStruct adapts the expr into a StructExpr.
+ //
+ // The Kind() must be equal to a StructKind for the conversion to be well-defined.
+ AsStruct() StructExpr
+
+ // RenumberIDs performs an in-place update of the expression and all of its descendents numeric ids.
+ RenumberIDs(IDGenerator)
+
+ // SetKindCase replaces the contents of the current expression with the contents of the other.
+ //
+ // The SetKindCase takes ownership of any expression instances references within the input Expr.
+ // A shallow copy is made of the Expr value itself, but not a deep one.
+ //
+ // This method should only be used during AST rewrites using temporary Expr values.
+ SetKindCase(Expr)
+
+ // isExpr is a marker interface.
+ isExpr()
+}
+
+// EntryExprKind represents the possible EntryExpr kinds.
+type EntryExprKind int
+
+const (
+ // UnspecifiedEntryExprKind indicates that the entry expr is not set.
+ UnspecifiedEntryExprKind EntryExprKind = iota
+
+ // MapEntryKind indicates that the entry is a MapEntry type with key and value expressions.
+ MapEntryKind
+
+ // StructFieldKind indicates that the entry is a StructField with a field name and initializer
+ // expression.
+ StructFieldKind
+)
+
+// EntryExpr represents the base entry expression in a CEL map or struct literal.
+type EntryExpr interface {
+ // ID of the entry as it appears in the AST.
+ ID() int64
+
+ // Kind of the entry expression node. See EntryExprKind for valid enum values.
+ Kind() EntryExprKind
+
+ // AsMapEntry casts the EntryExpr to a MapEntry.
+ //
+ // The Kind() must be equal to MapEntryKind for the conversion to be well-defined.
+ AsMapEntry() MapEntry
+
+ // AsStructField casts the EntryExpr to a StructField
+ //
+ // The Kind() must be equal to StructFieldKind for the conversion to be well-defined.
+ AsStructField() StructField
+
+ // RenumberIDs performs an in-place update of the expression and all of its descendents numeric ids.
+ RenumberIDs(IDGenerator)
+
+ isEntryExpr()
+}
+
+// IDGenerator produces unique ids suitable for tagging expression nodes
+type IDGenerator func(originalID int64) int64
+
+// CallExpr defines an interface for inspecting a function call and its arguments.
+type CallExpr interface {
+ // FunctionName returns the name of the function.
+ FunctionName() string
+
+ // IsMemberFunction returns whether the call has a non-nil target indicating it is a member function
+ IsMemberFunction() bool
+
+ // Target returns the target of the expression if one is present.
+ Target() Expr
+
+ // Args returns the list of call arguments, excluding the target.
+ Args() []Expr
+
+ // marker interface method
+ isExpr()
+}
+
+// ListExpr defines an interface for inspecting a list literal expression.
+type ListExpr interface {
+ // Elements returns the list elements as navigable expressions.
+ Elements() []Expr
+
+ // OptionalIndicies returns the list of optional indices in the list literal.
+ OptionalIndices() []int32
+
+ // IsOptional indicates whether the given element index is optional.
+ IsOptional(int32) bool
+
+ // Size returns the number of elements in the list.
+ Size() int
+
+ // marker interface method
+ isExpr()
+}
+
+// SelectExpr defines an interface for inspecting a select expression.
+type SelectExpr interface {
+ // Operand returns the selection operand expression.
+ Operand() Expr
+
+ // FieldName returns the field name being selected from the operand.
+ FieldName() string
+
+ // IsTestOnly indicates whether the select expression is a presence test generated by a macro.
+ IsTestOnly() bool
+
+ // marker interface method
+ isExpr()
+}
+
+// MapExpr defines an interface for inspecting a map expression.
+type MapExpr interface {
+ // Entries returns the map key value pairs as EntryExpr values.
+ Entries() []EntryExpr
+
+ // Size returns the number of entries in the map.
+ Size() int
+
+ // marker interface method
+ isExpr()
+}
+
+// MapEntry defines an interface for inspecting a map entry.
+type MapEntry interface {
+ // Key returns the map entry key expression.
+ Key() Expr
+
+ // Value returns the map entry value expression.
+ Value() Expr
+
+ // IsOptional returns whether the entry is optional.
+ IsOptional() bool
+
+ // marker interface method
+ isEntryExpr()
+}
+
+// StructExpr defines an interfaces for inspecting a struct and its field initializers.
+type StructExpr interface {
+ // TypeName returns the struct type name.
+ TypeName() string
+
+ // Fields returns the set of field initializers in the struct expression as EntryExpr values.
+ Fields() []EntryExpr
+
+ // marker interface method
+ isExpr()
+}
+
+// StructField defines an interface for inspecting a struct field initialization.
+type StructField interface {
+ // Name returns the name of the field.
+ Name() string
+
+ // Value returns the field initialization expression.
+ Value() Expr
+
+ // IsOptional returns whether the field is optional.
+ IsOptional() bool
+
+ // marker interface method
+ isEntryExpr()
+}
+
+// ComprehensionExpr defines an interface for inspecting a comprehension expression.
+type ComprehensionExpr interface {
+ // IterRange returns the iteration range expression.
+ IterRange() Expr
+
+ // IterVar returns the iteration variable name.
+ //
+ // For one-variable comprehensions, the iter var refers to the element value
+ // when iterating over a list, or the map key when iterating over a map.
+ //
+ // For two-variable comprehneions, the iter var refers to the list index or the
+ // map key.
+ IterVar() string
+
+ // IterVar2 returns the second iteration variable name.
+ //
+ // When the value is non-empty, the comprehension is a two-variable comprehension.
+ IterVar2() string
+
+ // HasIterVar2 returns true if the second iteration variable is non-empty.
+ HasIterVar2() bool
+
+ // AccuVar returns the accumulation variable name.
+ AccuVar() string
+
+ // AccuInit returns the accumulation variable initialization expression.
+ AccuInit() Expr
+
+ // LoopCondition returns the loop condition expression.
+ LoopCondition() Expr
+
+ // LoopStep returns the loop step expression.
+ LoopStep() Expr
+
+ // Result returns the comprehension result expression.
+ Result() Expr
+
+ // marker interface method
+ isExpr()
+}
+
+var _ Expr = &expr{}
+
+type expr struct {
+ id int64
+ exprKindCase
+}
+
+type exprKindCase interface {
+ Kind() ExprKind
+
+ renumberIDs(IDGenerator)
+
+ isExpr()
+}
+
+func (e *expr) ID() int64 {
+ if e == nil {
+ return 0
+ }
+ return e.id
+}
+
+func (e *expr) Kind() ExprKind {
+ if e == nil || e.exprKindCase == nil {
+ return UnspecifiedExprKind
+ }
+ return e.exprKindCase.Kind()
+}
+
+func (e *expr) AsCall() CallExpr {
+ if e.Kind() != CallKind {
+ return nilCall
+ }
+ return e.exprKindCase.(CallExpr)
+}
+
+func (e *expr) AsComprehension() ComprehensionExpr {
+ if e.Kind() != ComprehensionKind {
+ return nilCompre
+ }
+ return e.exprKindCase.(ComprehensionExpr)
+}
+
+func (e *expr) AsIdent() string {
+ if e.Kind() != IdentKind {
+ return ""
+ }
+ return string(e.exprKindCase.(baseIdentExpr))
+}
+
+func (e *expr) AsLiteral() ref.Val {
+ if e.Kind() != LiteralKind {
+ return nil
+ }
+ return e.exprKindCase.(*baseLiteral).Val
+}
+
+func (e *expr) AsList() ListExpr {
+ if e.Kind() != ListKind {
+ return nilList
+ }
+ return e.exprKindCase.(ListExpr)
+}
+
+func (e *expr) AsMap() MapExpr {
+ if e.Kind() != MapKind {
+ return nilMap
+ }
+ return e.exprKindCase.(MapExpr)
+}
+
+func (e *expr) AsSelect() SelectExpr {
+ if e.Kind() != SelectKind {
+ return nilSel
+ }
+ return e.exprKindCase.(SelectExpr)
+}
+
+func (e *expr) AsStruct() StructExpr {
+ if e.Kind() != StructKind {
+ return nilStruct
+ }
+ return e.exprKindCase.(StructExpr)
+}
+
+func (e *expr) SetKindCase(other Expr) {
+ if e == nil {
+ return
+ }
+ if other == nil {
+ e.exprKindCase = nil
+ return
+ }
+ switch other.Kind() {
+ case CallKind:
+ c := other.AsCall()
+ e.exprKindCase = &baseCallExpr{
+ function: c.FunctionName(),
+ target: c.Target(),
+ args: c.Args(),
+ isMember: c.IsMemberFunction(),
+ }
+ case ComprehensionKind:
+ c := other.AsComprehension()
+ e.exprKindCase = &baseComprehensionExpr{
+ iterRange: c.IterRange(),
+ iterVar: c.IterVar(),
+ iterVar2: c.IterVar2(),
+ accuVar: c.AccuVar(),
+ accuInit: c.AccuInit(),
+ loopCond: c.LoopCondition(),
+ loopStep: c.LoopStep(),
+ result: c.Result(),
+ }
+ case IdentKind:
+ e.exprKindCase = baseIdentExpr(other.AsIdent())
+ case ListKind:
+ l := other.AsList()
+ optIndexMap := make(map[int32]struct{}, len(l.OptionalIndices()))
+ for _, idx := range l.OptionalIndices() {
+ optIndexMap[idx] = struct{}{}
+ }
+ e.exprKindCase = &baseListExpr{
+ elements: l.Elements(),
+ optIndices: l.OptionalIndices(),
+ optIndexMap: optIndexMap,
+ }
+ case LiteralKind:
+ e.exprKindCase = &baseLiteral{Val: other.AsLiteral()}
+ case MapKind:
+ e.exprKindCase = &baseMapExpr{
+ entries: other.AsMap().Entries(),
+ }
+ case SelectKind:
+ s := other.AsSelect()
+ e.exprKindCase = &baseSelectExpr{
+ operand: s.Operand(),
+ field: s.FieldName(),
+ testOnly: s.IsTestOnly(),
+ }
+ case StructKind:
+ s := other.AsStruct()
+ e.exprKindCase = &baseStructExpr{
+ typeName: s.TypeName(),
+ fields: s.Fields(),
+ }
+ case UnspecifiedExprKind:
+ e.exprKindCase = nil
+ }
+}
+
+func (e *expr) RenumberIDs(idGen IDGenerator) {
+ if e == nil {
+ return
+ }
+ e.id = idGen(e.id)
+ if e.exprKindCase != nil {
+ e.exprKindCase.renumberIDs(idGen)
+ }
+}
+
+type baseCallExpr struct {
+ function string
+ target Expr
+ args []Expr
+ isMember bool
+}
+
+func (*baseCallExpr) Kind() ExprKind {
+ return CallKind
+}
+
+func (e *baseCallExpr) FunctionName() string {
+ if e == nil {
+ return ""
+ }
+ return e.function
+}
+
+func (e *baseCallExpr) IsMemberFunction() bool {
+ if e == nil {
+ return false
+ }
+ return e.isMember
+}
+
+func (e *baseCallExpr) Target() Expr {
+ if e == nil || !e.IsMemberFunction() {
+ return nilExpr
+ }
+ return e.target
+}
+
+func (e *baseCallExpr) Args() []Expr {
+ if e == nil {
+ return []Expr{}
+ }
+ return e.args
+}
+
+func (e *baseCallExpr) renumberIDs(idGen IDGenerator) {
+ if e.IsMemberFunction() {
+ e.Target().RenumberIDs(idGen)
+ }
+ for _, arg := range e.Args() {
+ arg.RenumberIDs(idGen)
+ }
+}
+
+func (*baseCallExpr) isExpr() {}
+
+var _ ComprehensionExpr = &baseComprehensionExpr{}
+
+type baseComprehensionExpr struct {
+ iterRange Expr
+ iterVar string
+ iterVar2 string
+ accuVar string
+ accuInit Expr
+ loopCond Expr
+ loopStep Expr
+ result Expr
+}
+
+func (*baseComprehensionExpr) Kind() ExprKind {
+ return ComprehensionKind
+}
+
+func (e *baseComprehensionExpr) IterRange() Expr {
+ if e == nil {
+ return nilExpr
+ }
+ return e.iterRange
+}
+
+func (e *baseComprehensionExpr) IterVar() string {
+ return e.iterVar
+}
+
+func (e *baseComprehensionExpr) IterVar2() string {
+ return e.iterVar2
+}
+
+func (e *baseComprehensionExpr) HasIterVar2() bool {
+ return e.iterVar2 != ""
+}
+
+func (e *baseComprehensionExpr) AccuVar() string {
+ return e.accuVar
+}
+
+func (e *baseComprehensionExpr) AccuInit() Expr {
+ if e == nil {
+ return nilExpr
+ }
+ return e.accuInit
+}
+
+func (e *baseComprehensionExpr) LoopCondition() Expr {
+ if e == nil {
+ return nilExpr
+ }
+ return e.loopCond
+}
+
+func (e *baseComprehensionExpr) LoopStep() Expr {
+ if e == nil {
+ return nilExpr
+ }
+ return e.loopStep
+}
+
+func (e *baseComprehensionExpr) Result() Expr {
+ if e == nil {
+ return nilExpr
+ }
+ return e.result
+}
+
+func (e *baseComprehensionExpr) renumberIDs(idGen IDGenerator) {
+ e.IterRange().RenumberIDs(idGen)
+ e.AccuInit().RenumberIDs(idGen)
+ e.LoopCondition().RenumberIDs(idGen)
+ e.LoopStep().RenumberIDs(idGen)
+ e.Result().RenumberIDs(idGen)
+}
+
+func (*baseComprehensionExpr) isExpr() {}
+
+var _ exprKindCase = baseIdentExpr("")
+
+type baseIdentExpr string
+
+func (baseIdentExpr) Kind() ExprKind {
+ return IdentKind
+}
+
+func (e baseIdentExpr) renumberIDs(IDGenerator) {}
+
+func (baseIdentExpr) isExpr() {}
+
+var _ exprKindCase = &baseLiteral{}
+var _ ref.Val = &baseLiteral{}
+
+type baseLiteral struct {
+ ref.Val
+}
+
+func (*baseLiteral) Kind() ExprKind {
+ return LiteralKind
+}
+
+func (l *baseLiteral) renumberIDs(IDGenerator) {}
+
+func (*baseLiteral) isExpr() {}
+
+var _ ListExpr = &baseListExpr{}
+
+type baseListExpr struct {
+ elements []Expr
+ optIndices []int32
+ optIndexMap map[int32]struct{}
+}
+
+func (*baseListExpr) Kind() ExprKind {
+ return ListKind
+}
+
+func (e *baseListExpr) Elements() []Expr {
+ if e == nil {
+ return []Expr{}
+ }
+ return e.elements
+}
+
+func (e *baseListExpr) IsOptional(index int32) bool {
+ _, found := e.optIndexMap[index]
+ return found
+}
+
+func (e *baseListExpr) OptionalIndices() []int32 {
+ if e == nil {
+ return []int32{}
+ }
+ return e.optIndices
+}
+
+func (e *baseListExpr) Size() int {
+ return len(e.Elements())
+}
+
+func (e *baseListExpr) renumberIDs(idGen IDGenerator) {
+ for _, elem := range e.Elements() {
+ elem.RenumberIDs(idGen)
+ }
+}
+
+func (*baseListExpr) isExpr() {}
+
+type baseMapExpr struct {
+ entries []EntryExpr
+}
+
+func (*baseMapExpr) Kind() ExprKind {
+ return MapKind
+}
+
+func (e *baseMapExpr) Entries() []EntryExpr {
+ if e == nil {
+ return []EntryExpr{}
+ }
+ return e.entries
+}
+
+func (e *baseMapExpr) Size() int {
+ return len(e.Entries())
+}
+
+func (e *baseMapExpr) renumberIDs(idGen IDGenerator) {
+ for _, entry := range e.Entries() {
+ entry.RenumberIDs(idGen)
+ }
+}
+
+func (*baseMapExpr) isExpr() {}
+
+type baseSelectExpr struct {
+ operand Expr
+ field string
+ testOnly bool
+}
+
+func (*baseSelectExpr) Kind() ExprKind {
+ return SelectKind
+}
+
+func (e *baseSelectExpr) Operand() Expr {
+ if e == nil || e.operand == nil {
+ return nilExpr
+ }
+ return e.operand
+}
+
+func (e *baseSelectExpr) FieldName() string {
+ if e == nil {
+ return ""
+ }
+ return e.field
+}
+
+func (e *baseSelectExpr) IsTestOnly() bool {
+ if e == nil {
+ return false
+ }
+ return e.testOnly
+}
+
+func (e *baseSelectExpr) renumberIDs(idGen IDGenerator) {
+ e.Operand().RenumberIDs(idGen)
+}
+
+func (*baseSelectExpr) isExpr() {}
+
+type baseStructExpr struct {
+ typeName string
+ fields []EntryExpr
+}
+
+func (*baseStructExpr) Kind() ExprKind {
+ return StructKind
+}
+
+func (e *baseStructExpr) TypeName() string {
+ if e == nil {
+ return ""
+ }
+ return e.typeName
+}
+
+func (e *baseStructExpr) Fields() []EntryExpr {
+ if e == nil {
+ return []EntryExpr{}
+ }
+ return e.fields
+}
+
+func (e *baseStructExpr) renumberIDs(idGen IDGenerator) {
+ for _, f := range e.Fields() {
+ f.RenumberIDs(idGen)
+ }
+}
+
+func (*baseStructExpr) isExpr() {}
+
+type entryExprKindCase interface {
+ Kind() EntryExprKind
+
+ renumberIDs(IDGenerator)
+
+ isEntryExpr()
+}
+
+var _ EntryExpr = &entryExpr{}
+
+type entryExpr struct {
+ id int64
+ entryExprKindCase
+}
+
+func (e *entryExpr) ID() int64 {
+ return e.id
+}
+
+func (e *entryExpr) AsMapEntry() MapEntry {
+ if e.Kind() != MapEntryKind {
+ return nilMapEntry
+ }
+ return e.entryExprKindCase.(MapEntry)
+}
+
+func (e *entryExpr) AsStructField() StructField {
+ if e.Kind() != StructFieldKind {
+ return nilStructField
+ }
+ return e.entryExprKindCase.(StructField)
+}
+
+func (e *entryExpr) RenumberIDs(idGen IDGenerator) {
+ e.id = idGen(e.id)
+ e.entryExprKindCase.renumberIDs(idGen)
+}
+
+type baseMapEntry struct {
+ key Expr
+ value Expr
+ isOptional bool
+}
+
+func (e *baseMapEntry) Kind() EntryExprKind {
+ return MapEntryKind
+}
+
+func (e *baseMapEntry) Key() Expr {
+ if e == nil {
+ return nilExpr
+ }
+ return e.key
+}
+
+func (e *baseMapEntry) Value() Expr {
+ if e == nil {
+ return nilExpr
+ }
+ return e.value
+}
+
+func (e *baseMapEntry) IsOptional() bool {
+ if e == nil {
+ return false
+ }
+ return e.isOptional
+}
+
+func (e *baseMapEntry) renumberIDs(idGen IDGenerator) {
+ e.Key().RenumberIDs(idGen)
+ e.Value().RenumberIDs(idGen)
+}
+
+func (*baseMapEntry) isEntryExpr() {}
+
+type baseStructField struct {
+ field string
+ value Expr
+ isOptional bool
+}
+
+func (f *baseStructField) Kind() EntryExprKind {
+ return StructFieldKind
+}
+
+func (f *baseStructField) Name() string {
+ if f == nil {
+ return ""
+ }
+ return f.field
+}
+
+func (f *baseStructField) Value() Expr {
+ if f == nil {
+ return nilExpr
+ }
+ return f.value
+}
+
+func (f *baseStructField) IsOptional() bool {
+ if f == nil {
+ return false
+ }
+ return f.isOptional
+}
+
+func (f *baseStructField) renumberIDs(idGen IDGenerator) {
+ f.Value().RenumberIDs(idGen)
+}
+
+func (*baseStructField) isEntryExpr() {}
+
+var (
+ nilExpr *expr = nil
+ nilCall *baseCallExpr = nil
+ nilCompre *baseComprehensionExpr = nil
+ nilList *baseListExpr = nil
+ nilMap *baseMapExpr = nil
+ nilMapEntry *baseMapEntry = nil
+ nilSel *baseSelectExpr = nil
+ nilStruct *baseStructExpr = nil
+ nilStructField *baseStructField = nil
+)
diff --git a/vendor/github.com/google/cel-go/common/ast/factory.go b/vendor/github.com/google/cel-go/common/ast/factory.go
new file mode 100644
index 0000000..994806b
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/ast/factory.go
@@ -0,0 +1,313 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ast
+
+import "github.com/google/cel-go/common/types/ref"
+
+// ExprFactory interfaces defines a set of methods necessary for building native expression values.
+type ExprFactory interface {
+ // CopyExpr creates a deep copy of the input Expr value.
+ CopyExpr(Expr) Expr
+
+ // CopyEntryExpr creates a deep copy of the input EntryExpr value.
+ CopyEntryExpr(EntryExpr) EntryExpr
+
+ // NewCall creates an Expr value representing a global function call.
+ NewCall(id int64, function string, args ...Expr) Expr
+
+ // NewComprehension creates an Expr value representing a one-variable comprehension over a value range.
+ NewComprehension(id int64, iterRange Expr, iterVar, accuVar string, accuInit, loopCondition, loopStep, result Expr) Expr
+
+ // NewComprehensionTwoVar creates an Expr value representing a two-variable comprehension over a value range.
+ NewComprehensionTwoVar(id int64, iterRange Expr, iterVar, iterVar2, accuVar string, accuInit, loopCondition, loopStep, result Expr) Expr
+
+ // NewMemberCall creates an Expr value representing a member function call.
+ NewMemberCall(id int64, function string, receiver Expr, args ...Expr) Expr
+
+ // NewIdent creates an Expr value representing an identifier.
+ NewIdent(id int64, name string) Expr
+
+ // NewAccuIdent creates an Expr value representing an accumulator identifier within a
+ //comprehension.
+ NewAccuIdent(id int64) Expr
+
+ // NewLiteral creates an Expr value representing a literal value, such as a string or integer.
+ NewLiteral(id int64, value ref.Val) Expr
+
+ // NewList creates an Expr value representing a list literal expression with optional indices.
+ //
+ // Optional indicies will typically be empty unless the CEL optional types are enabled.
+ NewList(id int64, elems []Expr, optIndices []int32) Expr
+
+ // NewMap creates an Expr value representing a map literal expression
+ NewMap(id int64, entries []EntryExpr) Expr
+
+ // NewMapEntry creates a MapEntry with a given key, value, and a flag indicating whether
+ // the key is optionally set.
+ NewMapEntry(id int64, key, value Expr, isOptional bool) EntryExpr
+
+ // NewPresenceTest creates an Expr representing a field presence test on an operand expression.
+ NewPresenceTest(id int64, operand Expr, field string) Expr
+
+ // NewSelect creates an Expr representing a field selection on an operand expression.
+ NewSelect(id int64, operand Expr, field string) Expr
+
+ // NewStruct creates an Expr value representing a struct literal with a given type name and a
+ // set of field initializers.
+ NewStruct(id int64, typeName string, fields []EntryExpr) Expr
+
+ // NewStructField creates a StructField with a given field name, value, and a flag indicating
+ // whether the field is optionally set.
+ NewStructField(id int64, field string, value Expr, isOptional bool) EntryExpr
+
+ // NewUnspecifiedExpr creates an empty expression node.
+ NewUnspecifiedExpr(id int64) Expr
+
+ isExprFactory()
+}
+
+type baseExprFactory struct{}
+
+// NewExprFactory creates an ExprFactory instance.
+func NewExprFactory() ExprFactory {
+ return &baseExprFactory{}
+}
+
+func (fac *baseExprFactory) NewCall(id int64, function string, args ...Expr) Expr {
+ if len(args) == 0 {
+ args = []Expr{}
+ }
+ return fac.newExpr(
+ id,
+ &baseCallExpr{
+ function: function,
+ target: nilExpr,
+ args: args,
+ isMember: false,
+ })
+}
+
+func (fac *baseExprFactory) NewMemberCall(id int64, function string, target Expr, args ...Expr) Expr {
+ if len(args) == 0 {
+ args = []Expr{}
+ }
+ return fac.newExpr(
+ id,
+ &baseCallExpr{
+ function: function,
+ target: target,
+ args: args,
+ isMember: true,
+ })
+}
+
+func (fac *baseExprFactory) NewComprehension(id int64, iterRange Expr, iterVar, accuVar string, accuInit, loopCond, loopStep, result Expr) Expr {
+ // Set the iter_var2 to empty string to indicate the second variable is omitted
+ return fac.NewComprehensionTwoVar(id, iterRange, iterVar, "", accuVar, accuInit, loopCond, loopStep, result)
+}
+
+func (fac *baseExprFactory) NewComprehensionTwoVar(id int64, iterRange Expr, iterVar, iterVar2, accuVar string, accuInit, loopCond, loopStep, result Expr) Expr {
+ return fac.newExpr(
+ id,
+ &baseComprehensionExpr{
+ iterRange: iterRange,
+ iterVar: iterVar,
+ iterVar2: iterVar2,
+ accuVar: accuVar,
+ accuInit: accuInit,
+ loopCond: loopCond,
+ loopStep: loopStep,
+ result: result,
+ })
+}
+
+func (fac *baseExprFactory) NewIdent(id int64, name string) Expr {
+ return fac.newExpr(id, baseIdentExpr(name))
+}
+
+func (fac *baseExprFactory) NewAccuIdent(id int64) Expr {
+ return fac.NewIdent(id, "__result__")
+}
+
+func (fac *baseExprFactory) NewLiteral(id int64, value ref.Val) Expr {
+ return fac.newExpr(id, &baseLiteral{Val: value})
+}
+
+func (fac *baseExprFactory) NewList(id int64, elems []Expr, optIndices []int32) Expr {
+ optIndexMap := make(map[int32]struct{}, len(optIndices))
+ for _, idx := range optIndices {
+ optIndexMap[idx] = struct{}{}
+ }
+ return fac.newExpr(id,
+ &baseListExpr{
+ elements: elems,
+ optIndices: optIndices,
+ optIndexMap: optIndexMap,
+ })
+}
+
+func (fac *baseExprFactory) NewMap(id int64, entries []EntryExpr) Expr {
+ return fac.newExpr(id, &baseMapExpr{entries: entries})
+}
+
+func (fac *baseExprFactory) NewMapEntry(id int64, key, value Expr, isOptional bool) EntryExpr {
+ return fac.newEntryExpr(
+ id,
+ &baseMapEntry{
+ key: key,
+ value: value,
+ isOptional: isOptional,
+ })
+}
+
+func (fac *baseExprFactory) NewPresenceTest(id int64, operand Expr, field string) Expr {
+ return fac.newExpr(
+ id,
+ &baseSelectExpr{
+ operand: operand,
+ field: field,
+ testOnly: true,
+ })
+}
+
+func (fac *baseExprFactory) NewSelect(id int64, operand Expr, field string) Expr {
+ return fac.newExpr(
+ id,
+ &baseSelectExpr{
+ operand: operand,
+ field: field,
+ })
+}
+
+func (fac *baseExprFactory) NewStruct(id int64, typeName string, fields []EntryExpr) Expr {
+ return fac.newExpr(
+ id,
+ &baseStructExpr{
+ typeName: typeName,
+ fields: fields,
+ })
+}
+
+func (fac *baseExprFactory) NewStructField(id int64, field string, value Expr, isOptional bool) EntryExpr {
+ return fac.newEntryExpr(
+ id,
+ &baseStructField{
+ field: field,
+ value: value,
+ isOptional: isOptional,
+ })
+}
+
+func (fac *baseExprFactory) NewUnspecifiedExpr(id int64) Expr {
+ return fac.newExpr(id, nil)
+}
+
+func (fac *baseExprFactory) CopyExpr(e Expr) Expr {
+ // unwrap navigable expressions to avoid unnecessary allocations during copying.
+ if nav, ok := e.(*navigableExprImpl); ok {
+ e = nav.Expr
+ }
+ switch e.Kind() {
+ case CallKind:
+ c := e.AsCall()
+ argsCopy := make([]Expr, len(c.Args()))
+ for i, arg := range c.Args() {
+ argsCopy[i] = fac.CopyExpr(arg)
+ }
+ if !c.IsMemberFunction() {
+ return fac.NewCall(e.ID(), c.FunctionName(), argsCopy...)
+ }
+ return fac.NewMemberCall(e.ID(), c.FunctionName(), fac.CopyExpr(c.Target()), argsCopy...)
+ case ComprehensionKind:
+ compre := e.AsComprehension()
+ return fac.NewComprehensionTwoVar(e.ID(),
+ fac.CopyExpr(compre.IterRange()),
+ compre.IterVar(),
+ compre.IterVar2(),
+ compre.AccuVar(),
+ fac.CopyExpr(compre.AccuInit()),
+ fac.CopyExpr(compre.LoopCondition()),
+ fac.CopyExpr(compre.LoopStep()),
+ fac.CopyExpr(compre.Result()))
+ case IdentKind:
+ return fac.NewIdent(e.ID(), e.AsIdent())
+ case ListKind:
+ l := e.AsList()
+ elemsCopy := make([]Expr, l.Size())
+ for i, elem := range l.Elements() {
+ elemsCopy[i] = fac.CopyExpr(elem)
+ }
+ return fac.NewList(e.ID(), elemsCopy, l.OptionalIndices())
+ case LiteralKind:
+ return fac.NewLiteral(e.ID(), e.AsLiteral())
+ case MapKind:
+ m := e.AsMap()
+ entriesCopy := make([]EntryExpr, m.Size())
+ for i, entry := range m.Entries() {
+ entriesCopy[i] = fac.CopyEntryExpr(entry)
+ }
+ return fac.NewMap(e.ID(), entriesCopy)
+ case SelectKind:
+ s := e.AsSelect()
+ if s.IsTestOnly() {
+ return fac.NewPresenceTest(e.ID(), fac.CopyExpr(s.Operand()), s.FieldName())
+ }
+ return fac.NewSelect(e.ID(), fac.CopyExpr(s.Operand()), s.FieldName())
+ case StructKind:
+ s := e.AsStruct()
+ fieldsCopy := make([]EntryExpr, len(s.Fields()))
+ for i, field := range s.Fields() {
+ fieldsCopy[i] = fac.CopyEntryExpr(field)
+ }
+ return fac.NewStruct(e.ID(), s.TypeName(), fieldsCopy)
+ default:
+ return fac.NewUnspecifiedExpr(e.ID())
+ }
+}
+
+func (fac *baseExprFactory) CopyEntryExpr(e EntryExpr) EntryExpr {
+ switch e.Kind() {
+ case MapEntryKind:
+ entry := e.AsMapEntry()
+ return fac.NewMapEntry(e.ID(),
+ fac.CopyExpr(entry.Key()), fac.CopyExpr(entry.Value()), entry.IsOptional())
+ case StructFieldKind:
+ field := e.AsStructField()
+ return fac.NewStructField(e.ID(),
+ field.Name(), fac.CopyExpr(field.Value()), field.IsOptional())
+ default:
+ return fac.newEntryExpr(e.ID(), nil)
+ }
+}
+
+func (*baseExprFactory) isExprFactory() {}
+
+func (fac *baseExprFactory) newExpr(id int64, e exprKindCase) Expr {
+ return &expr{
+ id: id,
+ exprKindCase: e,
+ }
+}
+
+func (fac *baseExprFactory) newEntryExpr(id int64, e entryExprKindCase) EntryExpr {
+ return &entryExpr{
+ id: id,
+ entryExprKindCase: e,
+ }
+}
+
+var (
+ defaultFactory = &baseExprFactory{}
+)
diff --git a/vendor/github.com/google/cel-go/common/ast/navigable.go b/vendor/github.com/google/cel-go/common/ast/navigable.go
new file mode 100644
index 0000000..d7a90fb
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/ast/navigable.go
@@ -0,0 +1,660 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ast
+
+import (
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+)
+
+// NavigableExpr represents the base navigable expression value with methods to inspect the
+// parent and child expressions.
+type NavigableExpr interface {
+ Expr
+
+ // Type of the expression.
+ //
+ // If the expression is type-checked, the type check metadata is returned. If the expression
+ // has not been type-checked, the types.DynType value is returned.
+ Type() *types.Type
+
+ // Parent returns the parent expression node, if one exists.
+ Parent() (NavigableExpr, bool)
+
+ // Children returns a list of child expression nodes.
+ Children() []NavigableExpr
+
+ // Depth indicates the depth in the expression tree.
+ //
+ // The root expression has depth 0.
+ Depth() int
+}
+
+// NavigateAST converts an AST to a NavigableExpr
+func NavigateAST(ast *AST) NavigableExpr {
+ return NavigateExpr(ast, ast.Expr())
+}
+
+// NavigateExpr creates a NavigableExpr whose type information is backed by the input AST.
+//
+// If the expression is already a NavigableExpr, the parent and depth information will be
+// propagated on the new NavigableExpr value; otherwise, the expr value will be treated
+// as though it is the root of the expression graph with a depth of 0.
+func NavigateExpr(ast *AST, expr Expr) NavigableExpr {
+ depth := 0
+ var parent NavigableExpr = nil
+ if nav, ok := expr.(NavigableExpr); ok {
+ depth = nav.Depth()
+ parent, _ = nav.Parent()
+ }
+ return newNavigableExpr(ast, parent, expr, depth)
+}
+
+// ExprMatcher takes a NavigableExpr in and indicates whether the value is a match.
+//
+// This function type should be use with the `Match` and `MatchList` calls.
+type ExprMatcher func(NavigableExpr) bool
+
+// ConstantValueMatcher returns an ExprMatcher which will return true if the input NavigableExpr
+// is comprised of all constant values, such as a simple literal or even list and map literal.
+func ConstantValueMatcher() ExprMatcher {
+ return matchIsConstantValue
+}
+
+// KindMatcher returns an ExprMatcher which will return true if the input NavigableExpr.Kind() matches
+// the specified `kind`.
+func KindMatcher(kind ExprKind) ExprMatcher {
+ return func(e NavigableExpr) bool {
+ return e.Kind() == kind
+ }
+}
+
+// FunctionMatcher returns an ExprMatcher which will match NavigableExpr nodes of CallKind type whose
+// function name is equal to `funcName`.
+func FunctionMatcher(funcName string) ExprMatcher {
+ return func(e NavigableExpr) bool {
+ if e.Kind() != CallKind {
+ return false
+ }
+ return e.AsCall().FunctionName() == funcName
+ }
+}
+
+// AllMatcher returns true for all descendants of a NavigableExpr, effectively flattening them into a list.
+//
+// Such a result would work well with subsequent MatchList calls.
+func AllMatcher() ExprMatcher {
+ return func(NavigableExpr) bool {
+ return true
+ }
+}
+
+// MatchDescendants takes a NavigableExpr and ExprMatcher and produces a list of NavigableExpr values
+// matching the input criteria in post-order (bottom up).
+func MatchDescendants(expr NavigableExpr, matcher ExprMatcher) []NavigableExpr {
+ matches := []NavigableExpr{}
+ navVisitor := &baseVisitor{
+ visitExpr: func(e Expr) {
+ nav := e.(NavigableExpr)
+ if matcher(nav) {
+ matches = append(matches, nav)
+ }
+ },
+ }
+ visit(expr, navVisitor, postOrder, 0, 0)
+ return matches
+}
+
+// MatchSubset applies an ExprMatcher to a list of NavigableExpr values and their descendants, producing a
+// subset of NavigableExpr values which match.
+func MatchSubset(exprs []NavigableExpr, matcher ExprMatcher) []NavigableExpr {
+ matches := []NavigableExpr{}
+ navVisitor := &baseVisitor{
+ visitExpr: func(e Expr) {
+ nav := e.(NavigableExpr)
+ if matcher(nav) {
+ matches = append(matches, nav)
+ }
+ },
+ }
+ for _, expr := range exprs {
+ visit(expr, navVisitor, postOrder, 0, 1)
+ }
+ return matches
+}
+
+// Visitor defines an object for visiting Expr and EntryExpr nodes within an expression graph.
+type Visitor interface {
+ // VisitExpr visits the input expression.
+ VisitExpr(Expr)
+
+ // VisitEntryExpr visits the input entry expression, i.e. a struct field or map entry.
+ VisitEntryExpr(EntryExpr)
+}
+
+type baseVisitor struct {
+ visitExpr func(Expr)
+ visitEntryExpr func(EntryExpr)
+}
+
+// VisitExpr visits the Expr if the internal expr visitor has been configured.
+func (v *baseVisitor) VisitExpr(e Expr) {
+ if v.visitExpr != nil {
+ v.visitExpr(e)
+ }
+}
+
+// VisitEntryExpr visits the entry if the internal expr entry visitor has been configured.
+func (v *baseVisitor) VisitEntryExpr(e EntryExpr) {
+ if v.visitEntryExpr != nil {
+ v.visitEntryExpr(e)
+ }
+}
+
+// NewExprVisitor creates a visitor which only visits expression nodes.
+func NewExprVisitor(v func(Expr)) Visitor {
+ return &baseVisitor{
+ visitExpr: v,
+ visitEntryExpr: nil,
+ }
+}
+
+// PostOrderVisit walks the expression graph and calls the visitor in post-order (bottom-up).
+func PostOrderVisit(expr Expr, visitor Visitor) {
+ visit(expr, visitor, postOrder, 0, 0)
+}
+
+// PreOrderVisit walks the expression graph and calls the visitor in pre-order (top-down).
+func PreOrderVisit(expr Expr, visitor Visitor) {
+ visit(expr, visitor, preOrder, 0, 0)
+}
+
+type visitOrder int
+
+const (
+ preOrder = iota + 1
+ postOrder
+)
+
+// TODO: consider exposing a way to configure a limit for the max visit depth.
+// It's possible that we could want to configure this on the NewExprVisitor()
+// and through MatchDescendents() / MaxID().
+func visit(expr Expr, visitor Visitor, order visitOrder, depth, maxDepth int) {
+ if maxDepth > 0 && depth == maxDepth {
+ return
+ }
+ if order == preOrder {
+ visitor.VisitExpr(expr)
+ }
+ switch expr.Kind() {
+ case CallKind:
+ c := expr.AsCall()
+ if c.IsMemberFunction() {
+ visit(c.Target(), visitor, order, depth+1, maxDepth)
+ }
+ for _, arg := range c.Args() {
+ visit(arg, visitor, order, depth+1, maxDepth)
+ }
+ case ComprehensionKind:
+ c := expr.AsComprehension()
+ visit(c.IterRange(), visitor, order, depth+1, maxDepth)
+ visit(c.AccuInit(), visitor, order, depth+1, maxDepth)
+ visit(c.LoopCondition(), visitor, order, depth+1, maxDepth)
+ visit(c.LoopStep(), visitor, order, depth+1, maxDepth)
+ visit(c.Result(), visitor, order, depth+1, maxDepth)
+ case ListKind:
+ l := expr.AsList()
+ for _, elem := range l.Elements() {
+ visit(elem, visitor, order, depth+1, maxDepth)
+ }
+ case MapKind:
+ m := expr.AsMap()
+ for _, e := range m.Entries() {
+ if order == preOrder {
+ visitor.VisitEntryExpr(e)
+ }
+ entry := e.AsMapEntry()
+ visit(entry.Key(), visitor, order, depth+1, maxDepth)
+ visit(entry.Value(), visitor, order, depth+1, maxDepth)
+ if order == postOrder {
+ visitor.VisitEntryExpr(e)
+ }
+ }
+ case SelectKind:
+ visit(expr.AsSelect().Operand(), visitor, order, depth+1, maxDepth)
+ case StructKind:
+ s := expr.AsStruct()
+ for _, f := range s.Fields() {
+ visitor.VisitEntryExpr(f)
+ visit(f.AsStructField().Value(), visitor, order, depth+1, maxDepth)
+ }
+ }
+ if order == postOrder {
+ visitor.VisitExpr(expr)
+ }
+}
+
+func matchIsConstantValue(e NavigableExpr) bool {
+ if e.Kind() == LiteralKind {
+ return true
+ }
+ if e.Kind() == StructKind || e.Kind() == MapKind || e.Kind() == ListKind {
+ for _, child := range e.Children() {
+ if !matchIsConstantValue(child) {
+ return false
+ }
+ }
+ return true
+ }
+ return false
+}
+
+func newNavigableExpr(ast *AST, parent NavigableExpr, expr Expr, depth int) NavigableExpr {
+ // Reduce navigable expression nesting by unwrapping the embedded Expr value.
+ if nav, ok := expr.(*navigableExprImpl); ok {
+ expr = nav.Expr
+ }
+ nav := &navigableExprImpl{
+ Expr: expr,
+ depth: depth,
+ ast: ast,
+ parent: parent,
+ createChildren: getChildFactory(expr),
+ }
+ return nav
+}
+
+type navigableExprImpl struct {
+ Expr
+ depth int
+ ast *AST
+ parent NavigableExpr
+ createChildren childFactory
+}
+
+func (nav *navigableExprImpl) Parent() (NavigableExpr, bool) {
+ if nav.parent != nil {
+ return nav.parent, true
+ }
+ return nil, false
+}
+
+func (nav *navigableExprImpl) ID() int64 {
+ return nav.Expr.ID()
+}
+
+func (nav *navigableExprImpl) Kind() ExprKind {
+ return nav.Expr.Kind()
+}
+
+func (nav *navigableExprImpl) Type() *types.Type {
+ return nav.ast.GetType(nav.ID())
+}
+
+func (nav *navigableExprImpl) Children() []NavigableExpr {
+ return nav.createChildren(nav)
+}
+
+func (nav *navigableExprImpl) Depth() int {
+ return nav.depth
+}
+
+func (nav *navigableExprImpl) AsCall() CallExpr {
+ return navigableCallImpl{navigableExprImpl: nav}
+}
+
+func (nav *navigableExprImpl) AsComprehension() ComprehensionExpr {
+ return navigableComprehensionImpl{navigableExprImpl: nav}
+}
+
+func (nav *navigableExprImpl) AsIdent() string {
+ return nav.Expr.AsIdent()
+}
+
+func (nav *navigableExprImpl) AsList() ListExpr {
+ return navigableListImpl{navigableExprImpl: nav}
+}
+
+func (nav *navigableExprImpl) AsLiteral() ref.Val {
+ return nav.Expr.AsLiteral()
+}
+
+func (nav *navigableExprImpl) AsMap() MapExpr {
+ return navigableMapImpl{navigableExprImpl: nav}
+}
+
+func (nav *navigableExprImpl) AsSelect() SelectExpr {
+ return navigableSelectImpl{navigableExprImpl: nav}
+}
+
+func (nav *navigableExprImpl) AsStruct() StructExpr {
+ return navigableStructImpl{navigableExprImpl: nav}
+}
+
+func (nav *navigableExprImpl) createChild(e Expr) NavigableExpr {
+ return newNavigableExpr(nav.ast, nav, e, nav.depth+1)
+}
+
+func (nav *navigableExprImpl) isExpr() {}
+
+type navigableCallImpl struct {
+ *navigableExprImpl
+}
+
+func (call navigableCallImpl) FunctionName() string {
+ return call.Expr.AsCall().FunctionName()
+}
+
+func (call navigableCallImpl) IsMemberFunction() bool {
+ return call.Expr.AsCall().IsMemberFunction()
+}
+
+func (call navigableCallImpl) Target() Expr {
+ t := call.Expr.AsCall().Target()
+ if t != nil {
+ return call.createChild(t)
+ }
+ return nil
+}
+
+func (call navigableCallImpl) Args() []Expr {
+ args := call.Expr.AsCall().Args()
+ navArgs := make([]Expr, len(args))
+ for i, a := range args {
+ navArgs[i] = call.createChild(a)
+ }
+ return navArgs
+}
+
+type navigableComprehensionImpl struct {
+ *navigableExprImpl
+}
+
+func (comp navigableComprehensionImpl) IterRange() Expr {
+ return comp.createChild(comp.Expr.AsComprehension().IterRange())
+}
+
+func (comp navigableComprehensionImpl) IterVar() string {
+ return comp.Expr.AsComprehension().IterVar()
+}
+
+func (comp navigableComprehensionImpl) IterVar2() string {
+ return comp.Expr.AsComprehension().IterVar2()
+}
+
+func (comp navigableComprehensionImpl) HasIterVar2() bool {
+ return comp.Expr.AsComprehension().HasIterVar2()
+}
+
+func (comp navigableComprehensionImpl) AccuVar() string {
+ return comp.Expr.AsComprehension().AccuVar()
+}
+
+func (comp navigableComprehensionImpl) AccuInit() Expr {
+ return comp.createChild(comp.Expr.AsComprehension().AccuInit())
+}
+
+func (comp navigableComprehensionImpl) LoopCondition() Expr {
+ return comp.createChild(comp.Expr.AsComprehension().LoopCondition())
+}
+
+func (comp navigableComprehensionImpl) LoopStep() Expr {
+ return comp.createChild(comp.Expr.AsComprehension().LoopStep())
+}
+
+func (comp navigableComprehensionImpl) Result() Expr {
+ return comp.createChild(comp.Expr.AsComprehension().Result())
+}
+
+type navigableListImpl struct {
+ *navigableExprImpl
+}
+
+func (l navigableListImpl) Elements() []Expr {
+ pbElems := l.Expr.AsList().Elements()
+ elems := make([]Expr, len(pbElems))
+ for i := 0; i < len(pbElems); i++ {
+ elems[i] = l.createChild(pbElems[i])
+ }
+ return elems
+}
+
+func (l navigableListImpl) IsOptional(index int32) bool {
+ return l.Expr.AsList().IsOptional(index)
+}
+
+func (l navigableListImpl) OptionalIndices() []int32 {
+ return l.Expr.AsList().OptionalIndices()
+}
+
+func (l navigableListImpl) Size() int {
+ return l.Expr.AsList().Size()
+}
+
+type navigableMapImpl struct {
+ *navigableExprImpl
+}
+
+func (m navigableMapImpl) Entries() []EntryExpr {
+ mapExpr := m.Expr.AsMap()
+ entries := make([]EntryExpr, len(mapExpr.Entries()))
+ for i, e := range mapExpr.Entries() {
+ entry := e.AsMapEntry()
+ entries[i] = &entryExpr{
+ id: e.ID(),
+ entryExprKindCase: navigableEntryImpl{
+ key: m.createChild(entry.Key()),
+ val: m.createChild(entry.Value()),
+ isOpt: entry.IsOptional(),
+ },
+ }
+ }
+ return entries
+}
+
+func (m navigableMapImpl) Size() int {
+ return m.Expr.AsMap().Size()
+}
+
+type navigableEntryImpl struct {
+ key NavigableExpr
+ val NavigableExpr
+ isOpt bool
+}
+
+func (e navigableEntryImpl) Kind() EntryExprKind {
+ return MapEntryKind
+}
+
+func (e navigableEntryImpl) Key() Expr {
+ return e.key
+}
+
+func (e navigableEntryImpl) Value() Expr {
+ return e.val
+}
+
+func (e navigableEntryImpl) IsOptional() bool {
+ return e.isOpt
+}
+
+func (e navigableEntryImpl) renumberIDs(IDGenerator) {}
+
+func (e navigableEntryImpl) isEntryExpr() {}
+
+type navigableSelectImpl struct {
+ *navigableExprImpl
+}
+
+func (sel navigableSelectImpl) FieldName() string {
+ return sel.Expr.AsSelect().FieldName()
+}
+
+func (sel navigableSelectImpl) IsTestOnly() bool {
+ return sel.Expr.AsSelect().IsTestOnly()
+}
+
+func (sel navigableSelectImpl) Operand() Expr {
+ return sel.createChild(sel.Expr.AsSelect().Operand())
+}
+
+type navigableStructImpl struct {
+ *navigableExprImpl
+}
+
+func (s navigableStructImpl) TypeName() string {
+ return s.Expr.AsStruct().TypeName()
+}
+
+func (s navigableStructImpl) Fields() []EntryExpr {
+ fieldInits := s.Expr.AsStruct().Fields()
+ fields := make([]EntryExpr, len(fieldInits))
+ for i, f := range fieldInits {
+ field := f.AsStructField()
+ fields[i] = &entryExpr{
+ id: f.ID(),
+ entryExprKindCase: navigableFieldImpl{
+ name: field.Name(),
+ val: s.createChild(field.Value()),
+ isOpt: field.IsOptional(),
+ },
+ }
+ }
+ return fields
+}
+
+type navigableFieldImpl struct {
+ name string
+ val NavigableExpr
+ isOpt bool
+}
+
+func (f navigableFieldImpl) Kind() EntryExprKind {
+ return StructFieldKind
+}
+
+func (f navigableFieldImpl) Name() string {
+ return f.name
+}
+
+func (f navigableFieldImpl) Value() Expr {
+ return f.val
+}
+
+func (f navigableFieldImpl) IsOptional() bool {
+ return f.isOpt
+}
+
+func (f navigableFieldImpl) renumberIDs(IDGenerator) {}
+
+func (f navigableFieldImpl) isEntryExpr() {}
+
+func getChildFactory(expr Expr) childFactory {
+ if expr == nil {
+ return noopFactory
+ }
+ switch expr.Kind() {
+ case LiteralKind:
+ return noopFactory
+ case IdentKind:
+ return noopFactory
+ case SelectKind:
+ return selectFactory
+ case CallKind:
+ return callArgFactory
+ case ListKind:
+ return listElemFactory
+ case MapKind:
+ return mapEntryFactory
+ case StructKind:
+ return structEntryFactory
+ case ComprehensionKind:
+ return comprehensionFactory
+ default:
+ return noopFactory
+ }
+}
+
+type childFactory func(*navigableExprImpl) []NavigableExpr
+
+func noopFactory(*navigableExprImpl) []NavigableExpr {
+ return nil
+}
+
+func selectFactory(nav *navigableExprImpl) []NavigableExpr {
+ return []NavigableExpr{nav.createChild(nav.AsSelect().Operand())}
+}
+
+func callArgFactory(nav *navigableExprImpl) []NavigableExpr {
+ call := nav.Expr.AsCall()
+ argCount := len(call.Args())
+ if call.IsMemberFunction() {
+ argCount++
+ }
+ navExprs := make([]NavigableExpr, argCount)
+ i := 0
+ if call.IsMemberFunction() {
+ navExprs[i] = nav.createChild(call.Target())
+ i++
+ }
+ for _, arg := range call.Args() {
+ navExprs[i] = nav.createChild(arg)
+ i++
+ }
+ return navExprs
+}
+
+func listElemFactory(nav *navigableExprImpl) []NavigableExpr {
+ l := nav.Expr.AsList()
+ navExprs := make([]NavigableExpr, len(l.Elements()))
+ for i, e := range l.Elements() {
+ navExprs[i] = nav.createChild(e)
+ }
+ return navExprs
+}
+
+func structEntryFactory(nav *navigableExprImpl) []NavigableExpr {
+ s := nav.Expr.AsStruct()
+ entries := make([]NavigableExpr, len(s.Fields()))
+ for i, e := range s.Fields() {
+ f := e.AsStructField()
+ entries[i] = nav.createChild(f.Value())
+ }
+ return entries
+}
+
+func mapEntryFactory(nav *navigableExprImpl) []NavigableExpr {
+ m := nav.Expr.AsMap()
+ entries := make([]NavigableExpr, len(m.Entries())*2)
+ j := 0
+ for _, e := range m.Entries() {
+ mapEntry := e.AsMapEntry()
+ entries[j] = nav.createChild(mapEntry.Key())
+ entries[j+1] = nav.createChild(mapEntry.Value())
+ j += 2
+ }
+ return entries
+}
+
+func comprehensionFactory(nav *navigableExprImpl) []NavigableExpr {
+ compre := nav.Expr.AsComprehension()
+ return []NavigableExpr{
+ nav.createChild(compre.IterRange()),
+ nav.createChild(compre.AccuInit()),
+ nav.createChild(compre.LoopCondition()),
+ nav.createChild(compre.LoopStep()),
+ nav.createChild(compre.Result()),
+ }
+}
diff --git a/vendor/github.com/google/cel-go/common/containers/BUILD.bazel b/vendor/github.com/google/cel-go/common/containers/BUILD.bazel
index 18142d9..81197f0 100644
--- a/vendor/github.com/google/cel-go/common/containers/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/common/containers/BUILD.bazel
@@ -12,7 +12,7 @@ go_library(
],
importpath = "github.com/google/cel-go/common/containers",
deps = [
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "//common/ast:go_default_library",
],
)
@@ -26,6 +26,6 @@ go_test(
":go_default_library",
],
deps = [
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "//common/ast:go_default_library",
],
)
diff --git a/vendor/github.com/google/cel-go/common/containers/container.go b/vendor/github.com/google/cel-go/common/containers/container.go
index d46698d..3097a3f 100644
--- a/vendor/github.com/google/cel-go/common/containers/container.go
+++ b/vendor/github.com/google/cel-go/common/containers/container.go
@@ -19,8 +19,9 @@ package containers
import (
"fmt"
"strings"
+ "unicode"
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/ast"
)
var (
@@ -212,6 +213,13 @@ type ContainerOption func(*Container) (*Container, error)
func Abbrevs(qualifiedNames ...string) ContainerOption {
return func(c *Container) (*Container, error) {
for _, qn := range qualifiedNames {
+ qn = strings.TrimSpace(qn)
+ for _, r := range qn {
+ if !isIdentifierChar(r) {
+ return nil, fmt.Errorf(
+ "invalid qualified name: %s, wanted name of the form 'qualified.name'", qn)
+ }
+ }
ind := strings.LastIndex(qn, ".")
if ind <= 0 || ind >= len(qn)-1 {
return nil, fmt.Errorf(
@@ -278,6 +286,10 @@ func aliasAs(kind, qualifiedName, alias string) ContainerOption {
}
}
+func isIdentifierChar(r rune) bool {
+ return r <= unicode.MaxASCII && (r == '.' || r == '_' || unicode.IsLetter(r) || unicode.IsNumber(r))
+}
+
// Name sets the fully-qualified name of the Container.
func Name(name string) ContainerOption {
return func(c *Container) (*Container, error) {
@@ -297,19 +309,19 @@ func Name(name string) ContainerOption {
// ToQualifiedName converts an expression AST into a qualified name if possible, with a boolean
// 'found' value that indicates if the conversion is successful.
-func ToQualifiedName(e *exprpb.Expr) (string, bool) {
- switch e.GetExprKind().(type) {
- case *exprpb.Expr_IdentExpr:
- id := e.GetIdentExpr()
- return id.GetName(), true
- case *exprpb.Expr_SelectExpr:
- sel := e.GetSelectExpr()
+func ToQualifiedName(e ast.Expr) (string, bool) {
+ switch e.Kind() {
+ case ast.IdentKind:
+ id := e.AsIdent()
+ return id, true
+ case ast.SelectKind:
+ sel := e.AsSelect()
// Test only expressions are not valid as qualified names.
- if sel.GetTestOnly() {
+ if sel.IsTestOnly() {
return "", false
}
- if qual, found := ToQualifiedName(sel.GetOperand()); found {
- return qual + "." + sel.GetField(), true
+ if qual, found := ToQualifiedName(sel.Operand()); found {
+ return qual + "." + sel.FieldName(), true
}
}
return "", false
diff --git a/vendor/github.com/google/cel-go/common/debug/BUILD.bazel b/vendor/github.com/google/cel-go/common/debug/BUILD.bazel
index cf5c5d2..724ed34 100644
--- a/vendor/github.com/google/cel-go/common/debug/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/common/debug/BUILD.bazel
@@ -13,6 +13,8 @@ go_library(
importpath = "github.com/google/cel-go/common/debug",
deps = [
"//common:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "//common/ast:go_default_library",
+ "//common/types:go_default_library",
+ "//common/types/ref:go_default_library",
],
)
diff --git a/vendor/github.com/google/cel-go/common/debug/debug.go b/vendor/github.com/google/cel-go/common/debug/debug.go
index 5dab156..25d2e3d 100644
--- a/vendor/github.com/google/cel-go/common/debug/debug.go
+++ b/vendor/github.com/google/cel-go/common/debug/debug.go
@@ -22,7 +22,9 @@ import (
"strconv"
"strings"
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
)
// Adorner returns debug metadata that will be tacked on to the string
@@ -38,7 +40,7 @@ type Writer interface {
// Buffer pushes an expression into an internal queue of expressions to
// write to a string.
- Buffer(e *exprpb.Expr)
+ Buffer(e ast.Expr)
}
type emptyDebugAdorner struct {
@@ -51,12 +53,12 @@ func (a *emptyDebugAdorner) GetMetadata(e any) string {
}
// ToDebugString gives the unadorned string representation of the Expr.
-func ToDebugString(e *exprpb.Expr) string {
+func ToDebugString(e ast.Expr) string {
return ToAdornedDebugString(e, emptyAdorner)
}
// ToAdornedDebugString gives the adorned string representation of the Expr.
-func ToAdornedDebugString(e *exprpb.Expr, adorner Adorner) string {
+func ToAdornedDebugString(e ast.Expr, adorner Adorner) string {
w := newDebugWriter(adorner)
w.Buffer(e)
return w.String()
@@ -78,49 +80,51 @@ func newDebugWriter(a Adorner) *debugWriter {
}
}
-func (w *debugWriter) Buffer(e *exprpb.Expr) {
+func (w *debugWriter) Buffer(e ast.Expr) {
if e == nil {
return
}
- switch e.ExprKind.(type) {
- case *exprpb.Expr_ConstExpr:
- w.append(formatLiteral(e.GetConstExpr()))
- case *exprpb.Expr_IdentExpr:
- w.append(e.GetIdentExpr().Name)
- case *exprpb.Expr_SelectExpr:
- w.appendSelect(e.GetSelectExpr())
- case *exprpb.Expr_CallExpr:
- w.appendCall(e.GetCallExpr())
- case *exprpb.Expr_ListExpr:
- w.appendList(e.GetListExpr())
- case *exprpb.Expr_StructExpr:
- w.appendStruct(e.GetStructExpr())
- case *exprpb.Expr_ComprehensionExpr:
- w.appendComprehension(e.GetComprehensionExpr())
+ switch e.Kind() {
+ case ast.LiteralKind:
+ w.append(formatLiteral(e.AsLiteral()))
+ case ast.IdentKind:
+ w.append(e.AsIdent())
+ case ast.SelectKind:
+ w.appendSelect(e.AsSelect())
+ case ast.CallKind:
+ w.appendCall(e.AsCall())
+ case ast.ListKind:
+ w.appendList(e.AsList())
+ case ast.MapKind:
+ w.appendMap(e.AsMap())
+ case ast.StructKind:
+ w.appendStruct(e.AsStruct())
+ case ast.ComprehensionKind:
+ w.appendComprehension(e.AsComprehension())
}
w.adorn(e)
}
-func (w *debugWriter) appendSelect(sel *exprpb.Expr_Select) {
- w.Buffer(sel.GetOperand())
+func (w *debugWriter) appendSelect(sel ast.SelectExpr) {
+ w.Buffer(sel.Operand())
w.append(".")
- w.append(sel.GetField())
- if sel.TestOnly {
+ w.append(sel.FieldName())
+ if sel.IsTestOnly() {
w.append("~test-only~")
}
}
-func (w *debugWriter) appendCall(call *exprpb.Expr_Call) {
- if call.Target != nil {
- w.Buffer(call.GetTarget())
+func (w *debugWriter) appendCall(call ast.CallExpr) {
+ if call.IsMemberFunction() {
+ w.Buffer(call.Target())
w.append(".")
}
- w.append(call.GetFunction())
+ w.append(call.FunctionName())
w.append("(")
- if len(call.GetArgs()) > 0 {
+ if len(call.Args()) > 0 {
w.addIndent()
w.appendLine()
- for i, arg := range call.GetArgs() {
+ for i, arg := range call.Args() {
if i > 0 {
w.append(",")
w.appendLine()
@@ -133,12 +137,12 @@ func (w *debugWriter) appendCall(call *exprpb.Expr_Call) {
w.append(")")
}
-func (w *debugWriter) appendList(list *exprpb.Expr_CreateList) {
+func (w *debugWriter) appendList(list ast.ListExpr) {
w.append("[")
- if len(list.GetElements()) > 0 {
+ if len(list.Elements()) > 0 {
w.appendLine()
w.addIndent()
- for i, elem := range list.GetElements() {
+ for i, elem := range list.Elements() {
if i > 0 {
w.append(",")
w.appendLine()
@@ -151,32 +155,25 @@ func (w *debugWriter) appendList(list *exprpb.Expr_CreateList) {
w.append("]")
}
-func (w *debugWriter) appendStruct(obj *exprpb.Expr_CreateStruct) {
- if obj.MessageName != "" {
- w.appendObject(obj)
- } else {
- w.appendMap(obj)
- }
-}
-
-func (w *debugWriter) appendObject(obj *exprpb.Expr_CreateStruct) {
- w.append(obj.GetMessageName())
+func (w *debugWriter) appendStruct(obj ast.StructExpr) {
+ w.append(obj.TypeName())
w.append("{")
- if len(obj.GetEntries()) > 0 {
+ if len(obj.Fields()) > 0 {
w.appendLine()
w.addIndent()
- for i, entry := range obj.GetEntries() {
+ for i, f := range obj.Fields() {
+ field := f.AsStructField()
if i > 0 {
w.append(",")
w.appendLine()
}
- if entry.GetOptionalEntry() {
+ if field.IsOptional() {
w.append("?")
}
- w.append(entry.GetFieldKey())
+ w.append(field.Name())
w.append(":")
- w.Buffer(entry.GetValue())
- w.adorn(entry)
+ w.Buffer(field.Value())
+ w.adorn(f)
}
w.removeIndent()
w.appendLine()
@@ -184,23 +181,24 @@ func (w *debugWriter) appendObject(obj *exprpb.Expr_CreateStruct) {
w.append("}")
}
-func (w *debugWriter) appendMap(obj *exprpb.Expr_CreateStruct) {
+func (w *debugWriter) appendMap(m ast.MapExpr) {
w.append("{")
- if len(obj.GetEntries()) > 0 {
+ if m.Size() > 0 {
w.appendLine()
w.addIndent()
- for i, entry := range obj.GetEntries() {
+ for i, e := range m.Entries() {
+ entry := e.AsMapEntry()
if i > 0 {
w.append(",")
w.appendLine()
}
- if entry.GetOptionalEntry() {
+ if entry.IsOptional() {
w.append("?")
}
- w.Buffer(entry.GetMapKey())
+ w.Buffer(entry.Key())
w.append(":")
- w.Buffer(entry.GetValue())
- w.adorn(entry)
+ w.Buffer(entry.Value())
+ w.adorn(e)
}
w.removeIndent()
w.appendLine()
@@ -208,62 +206,67 @@ func (w *debugWriter) appendMap(obj *exprpb.Expr_CreateStruct) {
w.append("}")
}
-func (w *debugWriter) appendComprehension(comprehension *exprpb.Expr_Comprehension) {
+func (w *debugWriter) appendComprehension(comprehension ast.ComprehensionExpr) {
w.append("__comprehension__(")
w.addIndent()
w.appendLine()
w.append("// Variable")
w.appendLine()
- w.append(comprehension.GetIterVar())
+ w.append(comprehension.IterVar())
w.append(",")
w.appendLine()
+ if comprehension.HasIterVar2() {
+ w.append(comprehension.IterVar2())
+ w.append(",")
+ w.appendLine()
+ }
w.append("// Target")
w.appendLine()
- w.Buffer(comprehension.GetIterRange())
+ w.Buffer(comprehension.IterRange())
w.append(",")
w.appendLine()
w.append("// Accumulator")
w.appendLine()
- w.append(comprehension.GetAccuVar())
+ w.append(comprehension.AccuVar())
w.append(",")
w.appendLine()
w.append("// Init")
w.appendLine()
- w.Buffer(comprehension.GetAccuInit())
+ w.Buffer(comprehension.AccuInit())
w.append(",")
w.appendLine()
w.append("// LoopCondition")
w.appendLine()
- w.Buffer(comprehension.GetLoopCondition())
+ w.Buffer(comprehension.LoopCondition())
w.append(",")
w.appendLine()
w.append("// LoopStep")
w.appendLine()
- w.Buffer(comprehension.GetLoopStep())
+ w.Buffer(comprehension.LoopStep())
w.append(",")
w.appendLine()
w.append("// Result")
w.appendLine()
- w.Buffer(comprehension.GetResult())
+ w.Buffer(comprehension.Result())
w.append(")")
w.removeIndent()
}
-func formatLiteral(c *exprpb.Constant) string {
- switch c.GetConstantKind().(type) {
- case *exprpb.Constant_BoolValue:
- return fmt.Sprintf("%t", c.GetBoolValue())
- case *exprpb.Constant_BytesValue:
- return fmt.Sprintf("b\"%s\"", string(c.GetBytesValue()))
- case *exprpb.Constant_DoubleValue:
- return fmt.Sprintf("%v", c.GetDoubleValue())
- case *exprpb.Constant_Int64Value:
- return fmt.Sprintf("%d", c.GetInt64Value())
- case *exprpb.Constant_StringValue:
- return strconv.Quote(c.GetStringValue())
- case *exprpb.Constant_Uint64Value:
- return fmt.Sprintf("%du", c.GetUint64Value())
- case *exprpb.Constant_NullValue:
+func formatLiteral(c ref.Val) string {
+ switch v := c.(type) {
+ case types.Bool:
+ return fmt.Sprintf("%t", v)
+ case types.Bytes:
+ return fmt.Sprintf("b\"%s\"", string(v))
+ case types.Double:
+ return fmt.Sprintf("%v", float64(v))
+ case types.Int:
+ return fmt.Sprintf("%d", int64(v))
+ case types.String:
+ return strconv.Quote(string(v))
+ case types.Uint:
+ return fmt.Sprintf("%du", uint64(v))
+ case types.Null:
return "null"
default:
panic("Unknown constant type")
diff --git a/vendor/github.com/google/cel-go/common/decls/BUILD.bazel b/vendor/github.com/google/cel-go/common/decls/BUILD.bazel
new file mode 100644
index 0000000..17791dc
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/decls/BUILD.bazel
@@ -0,0 +1,39 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+package(
+ default_visibility = ["//visibility:public"],
+ licenses = ["notice"], # Apache 2.0
+)
+
+go_library(
+ name = "go_default_library",
+ srcs = [
+ "decls.go",
+ ],
+ importpath = "github.com/google/cel-go/common/decls",
+ deps = [
+ "//checker/decls:go_default_library",
+ "//common/functions:go_default_library",
+ "//common/types:go_default_library",
+ "//common/types/ref:go_default_library",
+ "//common/types/traits:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
+ ],
+)
+
+go_test(
+ name = "go_default_test",
+ srcs = [
+ "decls_test.go",
+ ],
+ embed = [":go_default_library"],
+ deps = [
+ "//checker/decls:go_default_library",
+ "//common/overloads:go_default_library",
+ "//common/types:go_default_library",
+ "//common/types/ref:go_default_library",
+ "//common/types/traits:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
+ "@org_golang_google_protobuf//proto:go_default_library",
+ ],
+)
diff --git a/vendor/github.com/google/cel-go/common/decls/decls.go b/vendor/github.com/google/cel-go/common/decls/decls.go
new file mode 100644
index 0000000..bfeb52c
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/decls/decls.go
@@ -0,0 +1,856 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package decls contains function and variable declaration structs and helper methods.
+package decls
+
+import (
+ "fmt"
+ "strings"
+
+ chkdecls "github.com/google/cel-go/checker/decls"
+ "github.com/google/cel-go/common/functions"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+
+ exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+)
+
+// NewFunction creates a new function declaration with a set of function options to configure overloads
+// and function definitions (implementations).
+//
+// Functions are checked for name collisions and singleton redefinition.
+func NewFunction(name string, opts ...FunctionOpt) (*FunctionDecl, error) {
+ fn := &FunctionDecl{
+ name: name,
+ overloads: map[string]*OverloadDecl{},
+ overloadOrdinals: []string{},
+ }
+ var err error
+ for _, opt := range opts {
+ fn, err = opt(fn)
+ if err != nil {
+ return nil, err
+ }
+ }
+ if len(fn.overloads) == 0 {
+ return nil, fmt.Errorf("function %s must have at least one overload", name)
+ }
+ return fn, nil
+}
+
+// FunctionDecl defines a function name, overload set, and optionally a singleton definition for all
+// overload instances.
+type FunctionDecl struct {
+ name string
+
+ // overloads associated with the function name.
+ overloads map[string]*OverloadDecl
+
+ // singleton implementation of the function for all overloads.
+ //
+ // If this option is set, an error will occur if any overloads specify a per-overload implementation
+ // or if another function with the same name attempts to redefine the singleton.
+ singleton *functions.Overload
+
+ // disableTypeGuards is a performance optimization to disable detailed runtime type checks which could
+ // add overhead on common operations. Setting this option true leaves error checks and argument checks
+ // intact.
+ disableTypeGuards bool
+
+ // state indicates that the binding should be provided as a declaration, as a runtime binding, or both.
+ state declarationState
+
+ // overloadOrdinals indicates the order in which the overload was declared.
+ overloadOrdinals []string
+}
+
+type declarationState int
+
+const (
+ declarationStateUnset declarationState = iota
+ declarationDisabled
+ declarationEnabled
+)
+
+// Name returns the function name in human-readable terms, e.g. 'contains' of 'math.least'
+func (f *FunctionDecl) Name() string {
+ if f == nil {
+ return ""
+ }
+ return f.name
+}
+
+// IsDeclarationDisabled indicates that the function implementation should be added to the dispatcher, but the
+// declaration should not be exposed for use in expressions.
+func (f *FunctionDecl) IsDeclarationDisabled() bool {
+ return f.state == declarationDisabled
+}
+
+// Merge combines an existing function declaration with another.
+//
+// If a function is extended, by say adding new overloads to an existing function, then it is merged with the
+// prior definition of the function at which point its overloads must not collide with pre-existing overloads
+// and its bindings (singleton, or per-overload) must not conflict with previous definitions either.
+func (f *FunctionDecl) Merge(other *FunctionDecl) (*FunctionDecl, error) {
+ if f == other {
+ return f, nil
+ }
+ if f.Name() != other.Name() {
+ return nil, fmt.Errorf("cannot merge unrelated functions. %s and %s", f.Name(), other.Name())
+ }
+ merged := &FunctionDecl{
+ name: f.Name(),
+ overloads: make(map[string]*OverloadDecl, len(f.overloads)),
+ singleton: f.singleton,
+ overloadOrdinals: make([]string, len(f.overloads)),
+ // if one function is expecting type-guards and the other is not, then they
+ // must not be disabled.
+ disableTypeGuards: f.disableTypeGuards && other.disableTypeGuards,
+ // default to the current functions declaration state.
+ state: f.state,
+ }
+ // If the other state indicates that the declaration should be explicitly enabled or
+ // disabled, then update the merged state with the most recent value.
+ if other.state != declarationStateUnset {
+ merged.state = other.state
+ }
+ // baseline copy of the overloads and their ordinals
+ copy(merged.overloadOrdinals, f.overloadOrdinals)
+ for oID, o := range f.overloads {
+ merged.overloads[oID] = o
+ }
+ // overloads and their ordinals are added from the left
+ for _, oID := range other.overloadOrdinals {
+ o := other.overloads[oID]
+ err := merged.AddOverload(o)
+ if err != nil {
+ return nil, fmt.Errorf("function declaration merge failed: %v", err)
+ }
+ }
+ if other.singleton != nil {
+ if merged.singleton != nil && merged.singleton != other.singleton {
+ return nil, fmt.Errorf("function already has a singleton binding: %s", f.Name())
+ }
+ merged.singleton = other.singleton
+ }
+ return merged, nil
+}
+
+// AddOverload ensures that the new overload does not collide with an existing overload signature;
+// however, if the function signatures are identical, the implementation may be rewritten as its
+// difficult to compare functions by object identity.
+func (f *FunctionDecl) AddOverload(overload *OverloadDecl) error {
+ if f == nil {
+ return fmt.Errorf("nil function cannot add overload: %s", overload.ID())
+ }
+ for oID, o := range f.overloads {
+ if oID != overload.ID() && o.SignatureOverlaps(overload) {
+ return fmt.Errorf("overload signature collision in function %s: %s collides with %s", f.Name(), oID, overload.ID())
+ }
+ if oID == overload.ID() {
+ if o.SignatureEquals(overload) && o.IsNonStrict() == overload.IsNonStrict() {
+ // Allow redefinition of an overload implementation so long as the signatures match.
+ if overload.hasBinding() {
+ f.overloads[oID] = overload
+ }
+ return nil
+ }
+ return fmt.Errorf("overload redefinition in function. %s: %s has multiple definitions", f.Name(), oID)
+ }
+ }
+ f.overloadOrdinals = append(f.overloadOrdinals, overload.ID())
+ f.overloads[overload.ID()] = overload
+ return nil
+}
+
+// OverloadDecls returns the overload declarations in the order in which they were declared.
+func (f *FunctionDecl) OverloadDecls() []*OverloadDecl {
+ if f == nil {
+ return []*OverloadDecl{}
+ }
+ overloads := make([]*OverloadDecl, 0, len(f.overloads))
+ for _, oID := range f.overloadOrdinals {
+ overloads = append(overloads, f.overloads[oID])
+ }
+ return overloads
+}
+
+// Bindings produces a set of function bindings, if any are defined.
+func (f *FunctionDecl) Bindings() ([]*functions.Overload, error) {
+ if f == nil {
+ return []*functions.Overload{}, nil
+ }
+ overloads := []*functions.Overload{}
+ nonStrict := false
+ for _, oID := range f.overloadOrdinals {
+ o := f.overloads[oID]
+ if o.hasBinding() {
+ overload := &functions.Overload{
+ Operator: o.ID(),
+ Unary: o.guardedUnaryOp(f.Name(), f.disableTypeGuards),
+ Binary: o.guardedBinaryOp(f.Name(), f.disableTypeGuards),
+ Function: o.guardedFunctionOp(f.Name(), f.disableTypeGuards),
+ OperandTrait: o.OperandTrait(),
+ NonStrict: o.IsNonStrict(),
+ }
+ overloads = append(overloads, overload)
+ nonStrict = nonStrict || o.IsNonStrict()
+ }
+ }
+ if f.singleton != nil {
+ if len(overloads) != 0 {
+ return nil, fmt.Errorf("singleton function incompatible with specialized overloads: %s", f.Name())
+ }
+ overloads = []*functions.Overload{
+ {
+ Operator: f.Name(),
+ Unary: f.singleton.Unary,
+ Binary: f.singleton.Binary,
+ Function: f.singleton.Function,
+ OperandTrait: f.singleton.OperandTrait,
+ },
+ }
+ // fall-through to return single overload case.
+ }
+ if len(overloads) == 0 {
+ return overloads, nil
+ }
+ // Single overload. Replicate an entry for it using the function name as well.
+ if len(overloads) == 1 {
+ if overloads[0].Operator == f.Name() {
+ return overloads, nil
+ }
+ return append(overloads, &functions.Overload{
+ Operator: f.Name(),
+ Unary: overloads[0].Unary,
+ Binary: overloads[0].Binary,
+ Function: overloads[0].Function,
+ NonStrict: overloads[0].NonStrict,
+ OperandTrait: overloads[0].OperandTrait,
+ }), nil
+ }
+ // All of the defined overloads are wrapped into a top-level function which
+ // performs dynamic dispatch to the proper overload based on the argument types.
+ bindings := append([]*functions.Overload{}, overloads...)
+ funcDispatch := func(args ...ref.Val) ref.Val {
+ for _, oID := range f.overloadOrdinals {
+ o := f.overloads[oID]
+ // During dynamic dispatch over multiple functions, signature agreement checks
+ // are preserved in order to assist with the function resolution step.
+ switch len(args) {
+ case 1:
+ if o.unaryOp != nil && o.matchesRuntimeSignature(f.disableTypeGuards, args...) {
+ return o.unaryOp(args[0])
+ }
+ case 2:
+ if o.binaryOp != nil && o.matchesRuntimeSignature(f.disableTypeGuards, args...) {
+ return o.binaryOp(args[0], args[1])
+ }
+ }
+ if o.functionOp != nil && o.matchesRuntimeSignature(f.disableTypeGuards, args...) {
+ return o.functionOp(args...)
+ }
+ // eventually this will fall through to the noSuchOverload below.
+ }
+ return MaybeNoSuchOverload(f.Name(), args...)
+ }
+ function := &functions.Overload{
+ Operator: f.Name(),
+ Function: funcDispatch,
+ NonStrict: nonStrict,
+ }
+ return append(bindings, function), nil
+}
+
+// MaybeNoSuchOverload determines whether to propagate an error if one is provided as an argument, or
+// to return an unknown set, or to produce a new error for a missing function signature.
+func MaybeNoSuchOverload(funcName string, args ...ref.Val) ref.Val {
+ argTypes := make([]string, len(args))
+ var unk *types.Unknown = nil
+ for i, arg := range args {
+ if types.IsError(arg) {
+ return arg
+ }
+ if types.IsUnknown(arg) {
+ unk = types.MergeUnknowns(arg.(*types.Unknown), unk)
+ }
+ argTypes[i] = arg.Type().TypeName()
+ }
+ if unk != nil {
+ return unk
+ }
+ signature := strings.Join(argTypes, ", ")
+ return types.NewErr("no such overload: %s(%s)", funcName, signature)
+}
+
+// FunctionOpt defines a functional option for mutating a function declaration.
+type FunctionOpt func(*FunctionDecl) (*FunctionDecl, error)
+
+// DisableTypeGuards disables automatically generated function invocation guards on direct overload calls.
+// Type guards remain on during dynamic dispatch for parsed-only expressions.
+func DisableTypeGuards(value bool) FunctionOpt {
+ return func(fn *FunctionDecl) (*FunctionDecl, error) {
+ fn.disableTypeGuards = value
+ return fn, nil
+ }
+}
+
+// DisableDeclaration indicates that the function declaration should be disabled, but the runtime function
+// binding should be provided. Marking a function as runtime-only is a safe way to manage deprecations
+// of function declarations while still preserving the runtime behavior for previously compiled expressions.
+func DisableDeclaration(value bool) FunctionOpt {
+ return func(fn *FunctionDecl) (*FunctionDecl, error) {
+ if value {
+ fn.state = declarationDisabled
+ } else {
+ fn.state = declarationEnabled
+ }
+ return fn, nil
+ }
+}
+
+// SingletonUnaryBinding creates a singleton function definition to be used for all function overloads.
+//
+// Note, this approach works well if operand is expected to have a specific trait which it implements,
+// e.g. traits.ContainerType. Otherwise, prefer per-overload function bindings.
+func SingletonUnaryBinding(fn functions.UnaryOp, traits ...int) FunctionOpt {
+ trait := 0
+ for _, t := range traits {
+ trait = trait | t
+ }
+ return func(f *FunctionDecl) (*FunctionDecl, error) {
+ if f.singleton != nil {
+ return nil, fmt.Errorf("function already has a singleton binding: %s", f.Name())
+ }
+ f.singleton = &functions.Overload{
+ Operator: f.Name(),
+ Unary: fn,
+ OperandTrait: trait,
+ }
+ return f, nil
+ }
+}
+
+// SingletonBinaryBinding creates a singleton function definition to be used with all function overloads.
+//
+// Note, this approach works well if operand is expected to have a specific trait which it implements,
+// e.g. traits.ContainerType. Otherwise, prefer per-overload function bindings.
+func SingletonBinaryBinding(fn functions.BinaryOp, traits ...int) FunctionOpt {
+ trait := 0
+ for _, t := range traits {
+ trait = trait | t
+ }
+ return func(f *FunctionDecl) (*FunctionDecl, error) {
+ if f.singleton != nil {
+ return nil, fmt.Errorf("function already has a singleton binding: %s", f.Name())
+ }
+ f.singleton = &functions.Overload{
+ Operator: f.Name(),
+ Binary: fn,
+ OperandTrait: trait,
+ }
+ return f, nil
+ }
+}
+
+// SingletonFunctionBinding creates a singleton function definition to be used with all function overloads.
+//
+// Note, this approach works well if operand is expected to have a specific trait which it implements,
+// e.g. traits.ContainerType. Otherwise, prefer per-overload function bindings.
+func SingletonFunctionBinding(fn functions.FunctionOp, traits ...int) FunctionOpt {
+ trait := 0
+ for _, t := range traits {
+ trait = trait | t
+ }
+ return func(f *FunctionDecl) (*FunctionDecl, error) {
+ if f.singleton != nil {
+ return nil, fmt.Errorf("function already has a singleton binding: %s", f.Name())
+ }
+ f.singleton = &functions.Overload{
+ Operator: f.Name(),
+ Function: fn,
+ OperandTrait: trait,
+ }
+ return f, nil
+ }
+}
+
+// Overload defines a new global overload with an overload id, argument types, and result type. Through the
+// use of OverloadOpt options, the overload may also be configured with a binding, an operand trait, and to
+// be non-strict.
+//
+// Note: function bindings should be commonly configured with Overload instances whereas operand traits and
+// strict-ness should be rare occurrences.
+func Overload(overloadID string,
+ args []*types.Type, resultType *types.Type,
+ opts ...OverloadOpt) FunctionOpt {
+ return newOverload(overloadID, false, args, resultType, opts...)
+}
+
+// MemberOverload defines a new receiver-style overload (or member function) with an overload id, argument types,
+// and result type. Through the use of OverloadOpt options, the overload may also be configured with a binding,
+// an operand trait, and to be non-strict.
+//
+// Note: function bindings should be commonly configured with Overload instances whereas operand traits and
+// strict-ness should be rare occurrences.
+func MemberOverload(overloadID string,
+ args []*types.Type, resultType *types.Type,
+ opts ...OverloadOpt) FunctionOpt {
+ return newOverload(overloadID, true, args, resultType, opts...)
+}
+
+func newOverload(overloadID string,
+ memberFunction bool, args []*types.Type, resultType *types.Type,
+ opts ...OverloadOpt) FunctionOpt {
+ return func(f *FunctionDecl) (*FunctionDecl, error) {
+ overload, err := newOverloadInternal(overloadID, memberFunction, args, resultType, opts...)
+ if err != nil {
+ return nil, err
+ }
+ err = f.AddOverload(overload)
+ if err != nil {
+ return nil, err
+ }
+ return f, nil
+ }
+}
+
+func newOverloadInternal(overloadID string,
+ memberFunction bool, args []*types.Type, resultType *types.Type,
+ opts ...OverloadOpt) (*OverloadDecl, error) {
+ overload := &OverloadDecl{
+ id: overloadID,
+ argTypes: args,
+ resultType: resultType,
+ isMemberFunction: memberFunction,
+ }
+ var err error
+ for _, opt := range opts {
+ overload, err = opt(overload)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return overload, nil
+}
+
+// OverloadDecl contains the definition of a single overload id with a specific signature, and an optional
+// implementation.
+type OverloadDecl struct {
+ id string
+ argTypes []*types.Type
+ resultType *types.Type
+ isMemberFunction bool
+ // nonStrict indicates that the function will accept error and unknown arguments as inputs.
+ nonStrict bool
+ // operandTrait indicates whether the member argument should have a specific type-trait.
+ //
+ // This is useful for creating overloads which operate on a type-interface rather than a concrete type.
+ operandTrait int
+
+ // Function implementation options. Optional, but encouraged.
+ // unaryOp is a function binding that takes a single argument.
+ unaryOp functions.UnaryOp
+ // binaryOp is a function binding that takes two arguments.
+ binaryOp functions.BinaryOp
+ // functionOp is a catch-all for zero-arity and three-plus arity functions.
+ functionOp functions.FunctionOp
+}
+
+// ID mirrors the overload signature and provides a unique id which may be referenced within the type-checker
+// and interpreter to optimize performance.
+//
+// The ID format is usually one of two styles:
+// global: <functionName>_<argType>_<argTypeN>
+// member: <memberType>_<functionName>_<argType>_<argTypeN>
+func (o *OverloadDecl) ID() string {
+ if o == nil {
+ return ""
+ }
+ return o.id
+}
+
+// ArgTypes contains the set of argument types expected by the overload.
+//
+// For member functions ArgTypes[0] represents the member operand type.
+func (o *OverloadDecl) ArgTypes() []*types.Type {
+ if o == nil {
+ return emptyArgs
+ }
+ return o.argTypes
+}
+
+// IsMemberFunction indicates whether the overload is a member function
+func (o *OverloadDecl) IsMemberFunction() bool {
+ if o == nil {
+ return false
+ }
+ return o.isMemberFunction
+}
+
+// IsNonStrict returns whether the overload accepts errors and unknown values as arguments.
+func (o *OverloadDecl) IsNonStrict() bool {
+ if o == nil {
+ return false
+ }
+ return o.nonStrict
+}
+
+// OperandTrait returns the trait mask of the first operand to the overload call, e.g.
+// `traits.Indexer`
+func (o *OverloadDecl) OperandTrait() int {
+ if o == nil {
+ return 0
+ }
+ return o.operandTrait
+}
+
+// ResultType indicates the output type from calling the function.
+func (o *OverloadDecl) ResultType() *types.Type {
+ if o == nil {
+ // *types.Type is nil-safe
+ return nil
+ }
+ return o.resultType
+}
+
+// TypeParams returns the type parameter names associated with the overload.
+func (o *OverloadDecl) TypeParams() []string {
+ typeParams := map[string]struct{}{}
+ collectParamNames(typeParams, o.ResultType())
+ for _, arg := range o.ArgTypes() {
+ collectParamNames(typeParams, arg)
+ }
+ params := make([]string, 0, len(typeParams))
+ for param := range typeParams {
+ params = append(params, param)
+ }
+ return params
+}
+
+// SignatureEquals determines whether the incoming overload declaration signature is equal to the current signature.
+//
+// Result type, operand trait, and strict-ness are not considered as part of signature equality.
+func (o *OverloadDecl) SignatureEquals(other *OverloadDecl) bool {
+ if o == other {
+ return true
+ }
+ if o.ID() != other.ID() || o.IsMemberFunction() != other.IsMemberFunction() || len(o.ArgTypes()) != len(other.ArgTypes()) {
+ return false
+ }
+ for i, at := range o.ArgTypes() {
+ oat := other.ArgTypes()[i]
+ if !at.IsEquivalentType(oat) {
+ return false
+ }
+ }
+ return o.ResultType().IsEquivalentType(other.ResultType())
+}
+
+// SignatureOverlaps indicates whether two functions have non-equal, but overloapping function signatures.
+//
+// For example, list(dyn) collides with list(string) since the 'dyn' type can contain a 'string' type.
+func (o *OverloadDecl) SignatureOverlaps(other *OverloadDecl) bool {
+ if o.IsMemberFunction() != other.IsMemberFunction() || len(o.ArgTypes()) != len(other.ArgTypes()) {
+ return false
+ }
+ argsOverlap := true
+ for i, argType := range o.ArgTypes() {
+ otherArgType := other.ArgTypes()[i]
+ argsOverlap = argsOverlap &&
+ (argType.IsAssignableType(otherArgType) ||
+ otherArgType.IsAssignableType(argType))
+ }
+ return argsOverlap
+}
+
+// hasBinding indicates whether the overload already has a definition.
+func (o *OverloadDecl) hasBinding() bool {
+ return o != nil && (o.unaryOp != nil || o.binaryOp != nil || o.functionOp != nil)
+}
+
+// guardedUnaryOp creates an invocation guard around the provided unary operator, if one is defined.
+func (o *OverloadDecl) guardedUnaryOp(funcName string, disableTypeGuards bool) functions.UnaryOp {
+ if o.unaryOp == nil {
+ return nil
+ }
+ return func(arg ref.Val) ref.Val {
+ if !o.matchesRuntimeUnarySignature(disableTypeGuards, arg) {
+ return MaybeNoSuchOverload(funcName, arg)
+ }
+ return o.unaryOp(arg)
+ }
+}
+
+// guardedBinaryOp creates an invocation guard around the provided binary operator, if one is defined.
+func (o *OverloadDecl) guardedBinaryOp(funcName string, disableTypeGuards bool) functions.BinaryOp {
+ if o.binaryOp == nil {
+ return nil
+ }
+ return func(arg1, arg2 ref.Val) ref.Val {
+ if !o.matchesRuntimeBinarySignature(disableTypeGuards, arg1, arg2) {
+ return MaybeNoSuchOverload(funcName, arg1, arg2)
+ }
+ return o.binaryOp(arg1, arg2)
+ }
+}
+
+// guardedFunctionOp creates an invocation guard around the provided variadic function binding, if one is provided.
+func (o *OverloadDecl) guardedFunctionOp(funcName string, disableTypeGuards bool) functions.FunctionOp {
+ if o.functionOp == nil {
+ return nil
+ }
+ return func(args ...ref.Val) ref.Val {
+ if !o.matchesRuntimeSignature(disableTypeGuards, args...) {
+ return MaybeNoSuchOverload(funcName, args...)
+ }
+ return o.functionOp(args...)
+ }
+}
+
+// matchesRuntimeUnarySignature indicates whether the argument type is runtime assiganble to the overload's expected argument.
+func (o *OverloadDecl) matchesRuntimeUnarySignature(disableTypeGuards bool, arg ref.Val) bool {
+ return matchRuntimeArgType(o.IsNonStrict(), disableTypeGuards, o.ArgTypes()[0], arg) &&
+ matchOperandTrait(o.OperandTrait(), arg)
+}
+
+// matchesRuntimeBinarySignature indicates whether the argument types are runtime assiganble to the overload's expected arguments.
+func (o *OverloadDecl) matchesRuntimeBinarySignature(disableTypeGuards bool, arg1, arg2 ref.Val) bool {
+ return matchRuntimeArgType(o.IsNonStrict(), disableTypeGuards, o.ArgTypes()[0], arg1) &&
+ matchRuntimeArgType(o.IsNonStrict(), disableTypeGuards, o.ArgTypes()[1], arg2) &&
+ matchOperandTrait(o.OperandTrait(), arg1)
+}
+
+// matchesRuntimeSignature indicates whether the argument types are runtime assiganble to the overload's expected arguments.
+func (o *OverloadDecl) matchesRuntimeSignature(disableTypeGuards bool, args ...ref.Val) bool {
+ if len(args) != len(o.ArgTypes()) {
+ return false
+ }
+ if len(args) == 0 {
+ return true
+ }
+ for i, arg := range args {
+ if !matchRuntimeArgType(o.IsNonStrict(), disableTypeGuards, o.ArgTypes()[i], arg) {
+ return false
+ }
+ }
+ return matchOperandTrait(o.OperandTrait(), args[0])
+}
+
+func matchRuntimeArgType(nonStrict, disableTypeGuards bool, argType *types.Type, arg ref.Val) bool {
+ if nonStrict && (disableTypeGuards || types.IsUnknownOrError(arg)) {
+ return true
+ }
+ if types.IsUnknownOrError(arg) {
+ return false
+ }
+ return disableTypeGuards || argType.IsAssignableRuntimeType(arg)
+}
+
+func matchOperandTrait(trait int, arg ref.Val) bool {
+ return trait == 0 || arg.Type().HasTrait(trait) || types.IsUnknownOrError(arg)
+}
+
+// OverloadOpt is a functional option for configuring a function overload.
+type OverloadOpt func(*OverloadDecl) (*OverloadDecl, error)
+
+// UnaryBinding provides the implementation of a unary overload. The provided function is protected by a runtime
+// type-guard which ensures runtime type agreement between the overload signature and runtime argument types.
+func UnaryBinding(binding functions.UnaryOp) OverloadOpt {
+ return func(o *OverloadDecl) (*OverloadDecl, error) {
+ if o.hasBinding() {
+ return nil, fmt.Errorf("overload already has a binding: %s", o.ID())
+ }
+ if len(o.ArgTypes()) != 1 {
+ return nil, fmt.Errorf("unary function bound to non-unary overload: %s", o.ID())
+ }
+ o.unaryOp = binding
+ return o, nil
+ }
+}
+
+// BinaryBinding provides the implementation of a binary overload. The provided function is protected by a runtime
+// type-guard which ensures runtime type agreement between the overload signature and runtime argument types.
+func BinaryBinding(binding functions.BinaryOp) OverloadOpt {
+ return func(o *OverloadDecl) (*OverloadDecl, error) {
+ if o.hasBinding() {
+ return nil, fmt.Errorf("overload already has a binding: %s", o.ID())
+ }
+ if len(o.ArgTypes()) != 2 {
+ return nil, fmt.Errorf("binary function bound to non-binary overload: %s", o.ID())
+ }
+ o.binaryOp = binding
+ return o, nil
+ }
+}
+
+// FunctionBinding provides the implementation of a variadic overload. The provided function is protected by a runtime
+// type-guard which ensures runtime type agreement between the overload signature and runtime argument types.
+func FunctionBinding(binding functions.FunctionOp) OverloadOpt {
+ return func(o *OverloadDecl) (*OverloadDecl, error) {
+ if o.hasBinding() {
+ return nil, fmt.Errorf("overload already has a binding: %s", o.ID())
+ }
+ o.functionOp = binding
+ return o, nil
+ }
+}
+
+// OverloadIsNonStrict enables the function to be called with error and unknown argument values.
+//
+// Note: do not use this option unless absoluately necessary as it should be an uncommon feature.
+func OverloadIsNonStrict() OverloadOpt {
+ return func(o *OverloadDecl) (*OverloadDecl, error) {
+ o.nonStrict = true
+ return o, nil
+ }
+}
+
+// OverloadOperandTrait configures a set of traits which the first argument to the overload must implement in order to be
+// successfully invoked.
+func OverloadOperandTrait(trait int) OverloadOpt {
+ return func(o *OverloadDecl) (*OverloadDecl, error) {
+ o.operandTrait = trait
+ return o, nil
+ }
+}
+
+// NewConstant creates a new constant declaration.
+func NewConstant(name string, t *types.Type, v ref.Val) *VariableDecl {
+ return &VariableDecl{name: name, varType: t, value: v}
+}
+
+// NewVariable creates a new variable declaration.
+func NewVariable(name string, t *types.Type) *VariableDecl {
+ return &VariableDecl{name: name, varType: t}
+}
+
+// VariableDecl defines a variable declaration which may optionally have a constant value.
+type VariableDecl struct {
+ name string
+ varType *types.Type
+ value ref.Val
+}
+
+// Name returns the fully-qualified variable name
+func (v *VariableDecl) Name() string {
+ if v == nil {
+ return ""
+ }
+ return v.name
+}
+
+// Type returns the types.Type value associated with the variable.
+func (v *VariableDecl) Type() *types.Type {
+ if v == nil {
+ // types.Type is nil-safe
+ return nil
+ }
+ return v.varType
+}
+
+// Value returns the constant value associated with the declaration.
+func (v *VariableDecl) Value() ref.Val {
+ if v == nil {
+ return nil
+ }
+ return v.value
+}
+
+// DeclarationIsEquivalent returns true if one variable declaration has the same name and same type as the input.
+func (v *VariableDecl) DeclarationIsEquivalent(other *VariableDecl) bool {
+ if v == other {
+ return true
+ }
+ return v.Name() == other.Name() && v.Type().IsEquivalentType(other.Type())
+}
+
+// TypeVariable creates a new type identifier for use within a types.Provider
+func TypeVariable(t *types.Type) *VariableDecl {
+ return NewVariable(t.TypeName(), types.NewTypeTypeWithParam(t))
+}
+
+// VariableDeclToExprDecl converts a go-native variable declaration into a protobuf-type variable declaration.
+func VariableDeclToExprDecl(v *VariableDecl) (*exprpb.Decl, error) {
+ return variableDeclToExprDecl(v)
+}
+
+// variableDeclToExprDecl converts a go-native variable declaration into a protobuf-type variable declaration.
+func variableDeclToExprDecl(v *VariableDecl) (*exprpb.Decl, error) {
+ varType, err := types.TypeToExprType(v.Type())
+ if err != nil {
+ return nil, err
+ }
+ return chkdecls.NewVar(v.Name(), varType), nil
+}
+
+// FunctionDeclToExprDecl converts a go-native function declaration into a protobuf-typed function declaration.
+func FunctionDeclToExprDecl(f *FunctionDecl) (*exprpb.Decl, error) {
+ return functionDeclToExprDecl(f)
+}
+
+// functionDeclToExprDecl converts a go-native function declaration into a protobuf-typed function declaration.
+func functionDeclToExprDecl(f *FunctionDecl) (*exprpb.Decl, error) {
+ overloads := make([]*exprpb.Decl_FunctionDecl_Overload, len(f.overloads))
+ for i, oID := range f.overloadOrdinals {
+ o := f.overloads[oID]
+ paramNames := map[string]struct{}{}
+ argTypes := make([]*exprpb.Type, len(o.ArgTypes()))
+ for j, a := range o.ArgTypes() {
+ collectParamNames(paramNames, a)
+ at, err := types.TypeToExprType(a)
+ if err != nil {
+ return nil, err
+ }
+ argTypes[j] = at
+ }
+ collectParamNames(paramNames, o.ResultType())
+ resultType, err := types.TypeToExprType(o.ResultType())
+ if err != nil {
+ return nil, err
+ }
+ if len(paramNames) == 0 {
+ if o.IsMemberFunction() {
+ overloads[i] = chkdecls.NewInstanceOverload(oID, argTypes, resultType)
+ } else {
+ overloads[i] = chkdecls.NewOverload(oID, argTypes, resultType)
+ }
+ } else {
+ params := []string{}
+ for pn := range paramNames {
+ params = append(params, pn)
+ }
+ if o.IsMemberFunction() {
+ overloads[i] = chkdecls.NewParameterizedInstanceOverload(oID, argTypes, resultType, params)
+ } else {
+ overloads[i] = chkdecls.NewParameterizedOverload(oID, argTypes, resultType, params)
+ }
+ }
+ }
+ return chkdecls.NewFunction(f.Name(), overloads...), nil
+}
+
+func collectParamNames(paramNames map[string]struct{}, arg *types.Type) {
+ if arg.Kind() == types.TypeParamKind {
+ paramNames[arg.TypeName()] = struct{}{}
+ }
+ for _, param := range arg.Parameters() {
+ collectParamNames(paramNames, param)
+ }
+}
+
+var (
+ emptyArgs = []*types.Type{}
+)
diff --git a/vendor/github.com/google/cel-go/common/error.go b/vendor/github.com/google/cel-go/common/error.go
index f91f7f8..0cf2134 100644
--- a/vendor/github.com/google/cel-go/common/error.go
+++ b/vendor/github.com/google/cel-go/common/error.go
@@ -18,29 +18,30 @@ import (
"fmt"
"strings"
"unicode/utf8"
-
- "golang.org/x/text/width"
)
-// Error type which references a location within source and a message.
+// NewError creates an error associated with an expression id with the given message at the given location.
+func NewError(id int64, message string, location Location) *Error {
+ return &Error{Message: message, Location: location, ExprID: id}
+}
+
+// Error type which references an expression id, a location within source, and a message.
type Error struct {
Location Location
Message string
+ ExprID int64
}
const (
- dot = "."
- ind = "^"
+ dot = "."
+ ind = "^"
+ wideDot = "\uff0e"
+ wideInd = "\uff3e"
// maxSnippetLength is the largest number of characters which can be rendered in an error message snippet.
maxSnippetLength = 16384
)
-var (
- wideDot = width.Widen.String(dot)
- wideInd = width.Widen.String(ind)
-)
-
// ToDisplayString decorates the error message with the source location.
func (e *Error) ToDisplayString(source Source) string {
var result = fmt.Sprintf("ERROR: %s:%d:%d: %s",
diff --git a/vendor/github.com/google/cel-go/common/errors.go b/vendor/github.com/google/cel-go/common/errors.go
index 1565085..8957068 100644
--- a/vendor/github.com/google/cel-go/common/errors.go
+++ b/vendor/github.com/google/cel-go/common/errors.go
@@ -22,7 +22,7 @@ import (
// Errors type which contains a list of errors observed during parsing.
type Errors struct {
- errors []Error
+ errors []*Error
source Source
numErrors int
maxErrorsToReport int
@@ -30,20 +30,30 @@ type Errors struct {
// NewErrors creates a new instance of the Errors type.
func NewErrors(source Source) *Errors {
+ src := source
+ if src == nil {
+ src = NewTextSource("")
+ }
return &Errors{
- errors: []Error{},
- source: source,
+ errors: []*Error{},
+ source: src,
maxErrorsToReport: 100,
}
}
// ReportError records an error at a source location.
func (e *Errors) ReportError(l Location, format string, args ...any) {
+ e.ReportErrorAtID(0, l, format, args...)
+}
+
+// ReportErrorAtID records an error at a source location and expression id.
+func (e *Errors) ReportErrorAtID(id int64, l Location, format string, args ...any) {
e.numErrors++
if e.numErrors > e.maxErrorsToReport {
return
}
- err := Error{
+ err := &Error{
+ ExprID: id,
Location: l,
Message: fmt.Sprintf(format, args...),
}
@@ -51,14 +61,14 @@ func (e *Errors) ReportError(l Location, format string, args ...any) {
}
// GetErrors returns the list of observed errors.
-func (e *Errors) GetErrors() []Error {
+func (e *Errors) GetErrors() []*Error {
return e.errors[:]
}
// Append creates a new Errors object with the current and input errors.
-func (e *Errors) Append(errs []Error) *Errors {
+func (e *Errors) Append(errs []*Error) *Errors {
return &Errors{
- errors: append(e.errors, errs...),
+ errors: append(e.errors[:], errs...),
source: e.source,
numErrors: e.numErrors + len(errs),
maxErrorsToReport: e.maxErrorsToReport,
diff --git a/vendor/github.com/google/cel-go/common/functions/BUILD.bazel b/vendor/github.com/google/cel-go/common/functions/BUILD.bazel
new file mode 100644
index 0000000..3cc27d6
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/functions/BUILD.bazel
@@ -0,0 +1,17 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+package(
+ default_visibility = ["//visibility:public"],
+ licenses = ["notice"], # Apache 2.0
+)
+
+go_library(
+ name = "go_default_library",
+ srcs = [
+ "functions.go",
+ ],
+ importpath = "github.com/google/cel-go/common/functions",
+ deps = [
+ "//common/types/ref:go_default_library",
+ ],
+)
diff --git a/vendor/github.com/google/cel-go/common/functions/functions.go b/vendor/github.com/google/cel-go/common/functions/functions.go
new file mode 100644
index 0000000..67f4a59
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/functions/functions.go
@@ -0,0 +1,61 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package functions defines the standard builtin functions supported by the interpreter
+package functions
+
+import "github.com/google/cel-go/common/types/ref"
+
+// Overload defines a named overload of a function, indicating an operand trait
+// which must be present on the first argument to the overload as well as one
+// of either a unary, binary, or function implementation.
+//
+// The majority of operators within the expression language are unary or binary
+// and the specializations simplify the call contract for implementers of
+// types with operator overloads. Any added complexity is assumed to be handled
+// by the generic FunctionOp.
+type Overload struct {
+ // Operator name as written in an expression or defined within
+ // operators.go.
+ Operator string
+
+ // Operand trait used to dispatch the call. The zero-value indicates a
+ // global function overload or that one of the Unary / Binary / Function
+ // definitions should be used to execute the call.
+ OperandTrait int
+
+ // Unary defines the overload with a UnaryOp implementation. May be nil.
+ Unary UnaryOp
+
+ // Binary defines the overload with a BinaryOp implementation. May be nil.
+ Binary BinaryOp
+
+ // Function defines the overload with a FunctionOp implementation. May be
+ // nil.
+ Function FunctionOp
+
+ // NonStrict specifies whether the Overload will tolerate arguments that
+ // are types.Err or types.Unknown.
+ NonStrict bool
+}
+
+// UnaryOp is a function that takes a single value and produces an output.
+type UnaryOp func(value ref.Val) ref.Val
+
+// BinaryOp is a function that takes two values and produces an output.
+type BinaryOp func(lhs ref.Val, rhs ref.Val) ref.Val
+
+// FunctionOp is a function with accepts zero or more arguments and produces
+// a value or error as a result.
+type FunctionOp func(values ...ref.Val) ref.Val
diff --git a/vendor/github.com/google/cel-go/common/runes/buffer.go b/vendor/github.com/google/cel-go/common/runes/buffer.go
index 50aac0b..0211982 100644
--- a/vendor/github.com/google/cel-go/common/runes/buffer.go
+++ b/vendor/github.com/google/cel-go/common/runes/buffer.go
@@ -127,20 +127,48 @@ var nilBuffer = &emptyBuffer{}
// elements of the byte or uint16 array, and continue. The underlying storage is an rune array
// containing any Unicode character.
func NewBuffer(data string) Buffer {
+ buf, _ := newBuffer(data, false)
+ return buf
+}
+
+// NewBufferAndLineOffsets returns an efficient implementation of Buffer for the given text based on
+// the ranges of the encoded code points contained within, as well as returning the line offsets.
+//
+// Code points are represented as an array of byte, uint16, or rune. This approach ensures that
+// each index represents a code point by itself without needing to use an array of rune. At first
+// we assume all code points are less than or equal to '\u007f'. If this holds true, the
+// underlying storage is a byte array containing only ASCII characters. If we encountered a code
+// point above this range but less than or equal to '\uffff' we allocate a uint16 array, copy the
+// elements of previous byte array to the uint16 array, and continue. If this holds true, the
+// underlying storage is a uint16 array containing only Unicode characters in the Basic Multilingual
+// Plane. If we encounter a code point above '\uffff' we allocate an rune array, copy the previous
+// elements of the byte or uint16 array, and continue. The underlying storage is an rune array
+// containing any Unicode character.
+func NewBufferAndLineOffsets(data string) (Buffer, []int32) {
+ return newBuffer(data, true)
+}
+
+func newBuffer(data string, lines bool) (Buffer, []int32) {
if len(data) == 0 {
- return nilBuffer
+ return nilBuffer, []int32{0}
}
var (
- idx = 0
- buf8 = make([]byte, 0, len(data))
+ idx = 0
+ off int32 = 0
+ buf8 = make([]byte, 0, len(data))
buf16 []uint16
buf32 []rune
+ offs []int32
)
for idx < len(data) {
r, s := utf8.DecodeRuneInString(data[idx:])
idx += s
+ if lines && r == '\n' {
+ offs = append(offs, off+1)
+ }
if r < utf8.RuneSelf {
buf8 = append(buf8, byte(r))
+ off++
continue
}
if r <= 0xffff {
@@ -150,6 +178,7 @@ func NewBuffer(data string) Buffer {
}
buf8 = nil
buf16 = append(buf16, uint16(r))
+ off++
goto copy16
}
buf32 = make([]rune, len(buf8), len(data))
@@ -158,17 +187,25 @@ func NewBuffer(data string) Buffer {
}
buf8 = nil
buf32 = append(buf32, r)
+ off++
goto copy32
}
+ if lines {
+ offs = append(offs, off+1)
+ }
return &asciiBuffer{
arr: buf8,
- }
+ }, offs
copy16:
for idx < len(data) {
r, s := utf8.DecodeRuneInString(data[idx:])
idx += s
+ if lines && r == '\n' {
+ offs = append(offs, off+1)
+ }
if r <= 0xffff {
buf16 = append(buf16, uint16(r))
+ off++
continue
}
buf32 = make([]rune, len(buf16), len(data))
@@ -177,18 +214,29 @@ copy16:
}
buf16 = nil
buf32 = append(buf32, r)
+ off++
goto copy32
}
+ if lines {
+ offs = append(offs, off+1)
+ }
return &basicBuffer{
arr: buf16,
- }
+ }, offs
copy32:
for idx < len(data) {
r, s := utf8.DecodeRuneInString(data[idx:])
idx += s
+ if lines && r == '\n' {
+ offs = append(offs, off+1)
+ }
buf32 = append(buf32, r)
+ off++
+ }
+ if lines {
+ offs = append(offs, off+1)
}
return &supplementalBuffer{
arr: buf32,
- }
+ }, offs
}
diff --git a/vendor/github.com/google/cel-go/common/source.go b/vendor/github.com/google/cel-go/common/source.go
index 52377d9..ec79cb5 100644
--- a/vendor/github.com/google/cel-go/common/source.go
+++ b/vendor/github.com/google/cel-go/common/source.go
@@ -15,9 +15,6 @@
package common
import (
- "strings"
- "unicode/utf8"
-
"github.com/google/cel-go/common/runes"
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
@@ -64,7 +61,6 @@ type sourceImpl struct {
runes.Buffer
description string
lineOffsets []int32
- idOffsets map[int64]int32
}
var _ runes.Buffer = &sourceImpl{}
@@ -81,18 +77,11 @@ func NewTextSource(text string) Source {
// NewStringSource creates a new Source from the given contents and description.
func NewStringSource(contents string, description string) Source {
// Compute line offsets up front as they are referred to frequently.
- lines := strings.Split(contents, "\n")
- offsets := make([]int32, len(lines))
- var offset int32
- for i, line := range lines {
- offset = offset + int32(utf8.RuneCountInString(line)) + 1
- offsets[int32(i)] = offset
- }
+ buf, offs := runes.NewBufferAndLineOffsets(contents)
return &sourceImpl{
- Buffer: runes.NewBuffer(contents),
+ Buffer: buf,
description: description,
- lineOffsets: offsets,
- idOffsets: map[int64]int32{},
+ lineOffsets: offs,
}
}
@@ -102,7 +91,6 @@ func NewInfoSource(info *exprpb.SourceInfo) Source {
Buffer: runes.NewBuffer(""),
description: info.GetLocation(),
lineOffsets: info.GetLineOffsets(),
- idOffsets: info.GetPositions(),
}
}
@@ -175,9 +163,8 @@ func (s *sourceImpl) findLine(characterOffset int32) (int32, int32) {
for _, lineOffset := range s.lineOffsets {
if lineOffset > characterOffset {
break
- } else {
- line++
}
+ line++
}
if line == 1 {
return line, 0
diff --git a/vendor/github.com/google/cel-go/common/stdlib/BUILD.bazel b/vendor/github.com/google/cel-go/common/stdlib/BUILD.bazel
new file mode 100644
index 0000000..b55f452
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/stdlib/BUILD.bazel
@@ -0,0 +1,23 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+package(
+ default_visibility = ["//visibility:public"],
+ licenses = ["notice"], # Apache 2.0
+)
+
+go_library(
+ name = "go_default_library",
+ srcs = [
+ "standard.go",
+ ],
+ importpath = "github.com/google/cel-go/common/stdlib",
+ deps = [
+ "//common/decls:go_default_library",
+ "//common/functions:go_default_library",
+ "//common/operators:go_default_library",
+ "//common/overloads:go_default_library",
+ "//common/types:go_default_library",
+ "//common/types/ref:go_default_library",
+ "//common/types/traits:go_default_library",
+ ],
+) \ No newline at end of file
diff --git a/vendor/github.com/google/cel-go/common/stdlib/standard.go b/vendor/github.com/google/cel-go/common/stdlib/standard.go
new file mode 100644
index 0000000..1550c17
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/stdlib/standard.go
@@ -0,0 +1,620 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package stdlib contains all of the standard library function declarations and definitions for CEL.
+package stdlib
+
+import (
+ "github.com/google/cel-go/common/decls"
+ "github.com/google/cel-go/common/functions"
+ "github.com/google/cel-go/common/operators"
+ "github.com/google/cel-go/common/overloads"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+ "github.com/google/cel-go/common/types/traits"
+)
+
+var (
+ stdFunctions []*decls.FunctionDecl
+ stdTypes []*decls.VariableDecl
+)
+
+func init() {
+ paramA := types.NewTypeParamType("A")
+ paramB := types.NewTypeParamType("B")
+ listOfA := types.NewListType(paramA)
+ mapOfAB := types.NewMapType(paramA, paramB)
+
+ stdTypes = []*decls.VariableDecl{
+ decls.TypeVariable(types.BoolType),
+ decls.TypeVariable(types.BytesType),
+ decls.TypeVariable(types.DoubleType),
+ decls.TypeVariable(types.DurationType),
+ decls.TypeVariable(types.IntType),
+ decls.TypeVariable(listOfA),
+ decls.TypeVariable(mapOfAB),
+ decls.TypeVariable(types.NullType),
+ decls.TypeVariable(types.StringType),
+ decls.TypeVariable(types.TimestampType),
+ decls.TypeVariable(types.TypeType),
+ decls.TypeVariable(types.UintType),
+ }
+
+ stdFunctions = []*decls.FunctionDecl{
+ // Logical operators. Special-cased within the interpreter.
+ // Note, the singleton binding prevents extensions from overriding the operator behavior.
+ function(operators.Conditional,
+ decls.Overload(overloads.Conditional, argTypes(types.BoolType, paramA, paramA), paramA,
+ decls.OverloadIsNonStrict()),
+ decls.SingletonFunctionBinding(noFunctionOverrides)),
+ function(operators.LogicalAnd,
+ decls.Overload(overloads.LogicalAnd, argTypes(types.BoolType, types.BoolType), types.BoolType,
+ decls.OverloadIsNonStrict()),
+ decls.SingletonBinaryBinding(noBinaryOverrides)),
+ function(operators.LogicalOr,
+ decls.Overload(overloads.LogicalOr, argTypes(types.BoolType, types.BoolType), types.BoolType,
+ decls.OverloadIsNonStrict()),
+ decls.SingletonBinaryBinding(noBinaryOverrides)),
+ function(operators.LogicalNot,
+ decls.Overload(overloads.LogicalNot, argTypes(types.BoolType), types.BoolType),
+ decls.SingletonUnaryBinding(func(val ref.Val) ref.Val {
+ b, ok := val.(types.Bool)
+ if !ok {
+ return types.MaybeNoSuchOverloadErr(val)
+ }
+ return b.Negate()
+ })),
+
+ // Comprehension short-circuiting related function
+ function(operators.NotStrictlyFalse,
+ decls.Overload(overloads.NotStrictlyFalse, argTypes(types.BoolType), types.BoolType,
+ decls.OverloadIsNonStrict(),
+ decls.UnaryBinding(notStrictlyFalse))),
+ // Deprecated: __not_strictly_false__
+ function(operators.OldNotStrictlyFalse,
+ decls.DisableDeclaration(true), // safe deprecation
+ decls.Overload(operators.OldNotStrictlyFalse, argTypes(types.BoolType), types.BoolType,
+ decls.OverloadIsNonStrict(),
+ decls.UnaryBinding(notStrictlyFalse))),
+
+ // Equality / inequality. Special-cased in the interpreter
+ function(operators.Equals,
+ decls.Overload(overloads.Equals, argTypes(paramA, paramA), types.BoolType),
+ decls.SingletonBinaryBinding(noBinaryOverrides)),
+ function(operators.NotEquals,
+ decls.Overload(overloads.NotEquals, argTypes(paramA, paramA), types.BoolType),
+ decls.SingletonBinaryBinding(noBinaryOverrides)),
+
+ // Mathematical operators
+ function(operators.Add,
+ decls.Overload(overloads.AddBytes,
+ argTypes(types.BytesType, types.BytesType), types.BytesType),
+ decls.Overload(overloads.AddDouble,
+ argTypes(types.DoubleType, types.DoubleType), types.DoubleType),
+ decls.Overload(overloads.AddDurationDuration,
+ argTypes(types.DurationType, types.DurationType), types.DurationType),
+ decls.Overload(overloads.AddDurationTimestamp,
+ argTypes(types.DurationType, types.TimestampType), types.TimestampType),
+ decls.Overload(overloads.AddTimestampDuration,
+ argTypes(types.TimestampType, types.DurationType), types.TimestampType),
+ decls.Overload(overloads.AddInt64,
+ argTypes(types.IntType, types.IntType), types.IntType),
+ decls.Overload(overloads.AddList,
+ argTypes(listOfA, listOfA), listOfA),
+ decls.Overload(overloads.AddString,
+ argTypes(types.StringType, types.StringType), types.StringType),
+ decls.Overload(overloads.AddUint64,
+ argTypes(types.UintType, types.UintType), types.UintType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ return lhs.(traits.Adder).Add(rhs)
+ }, traits.AdderType)),
+ function(operators.Divide,
+ decls.Overload(overloads.DivideDouble,
+ argTypes(types.DoubleType, types.DoubleType), types.DoubleType),
+ decls.Overload(overloads.DivideInt64,
+ argTypes(types.IntType, types.IntType), types.IntType),
+ decls.Overload(overloads.DivideUint64,
+ argTypes(types.UintType, types.UintType), types.UintType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ return lhs.(traits.Divider).Divide(rhs)
+ }, traits.DividerType)),
+ function(operators.Modulo,
+ decls.Overload(overloads.ModuloInt64,
+ argTypes(types.IntType, types.IntType), types.IntType),
+ decls.Overload(overloads.ModuloUint64,
+ argTypes(types.UintType, types.UintType), types.UintType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ return lhs.(traits.Modder).Modulo(rhs)
+ }, traits.ModderType)),
+ function(operators.Multiply,
+ decls.Overload(overloads.MultiplyDouble,
+ argTypes(types.DoubleType, types.DoubleType), types.DoubleType),
+ decls.Overload(overloads.MultiplyInt64,
+ argTypes(types.IntType, types.IntType), types.IntType),
+ decls.Overload(overloads.MultiplyUint64,
+ argTypes(types.UintType, types.UintType), types.UintType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ return lhs.(traits.Multiplier).Multiply(rhs)
+ }, traits.MultiplierType)),
+ function(operators.Negate,
+ decls.Overload(overloads.NegateDouble, argTypes(types.DoubleType), types.DoubleType),
+ decls.Overload(overloads.NegateInt64, argTypes(types.IntType), types.IntType),
+ decls.SingletonUnaryBinding(func(val ref.Val) ref.Val {
+ if types.IsBool(val) {
+ return types.MaybeNoSuchOverloadErr(val)
+ }
+ return val.(traits.Negater).Negate()
+ }, traits.NegatorType)),
+ function(operators.Subtract,
+ decls.Overload(overloads.SubtractDouble,
+ argTypes(types.DoubleType, types.DoubleType), types.DoubleType),
+ decls.Overload(overloads.SubtractDurationDuration,
+ argTypes(types.DurationType, types.DurationType), types.DurationType),
+ decls.Overload(overloads.SubtractInt64,
+ argTypes(types.IntType, types.IntType), types.IntType),
+ decls.Overload(overloads.SubtractTimestampDuration,
+ argTypes(types.TimestampType, types.DurationType), types.TimestampType),
+ decls.Overload(overloads.SubtractTimestampTimestamp,
+ argTypes(types.TimestampType, types.TimestampType), types.DurationType),
+ decls.Overload(overloads.SubtractUint64,
+ argTypes(types.UintType, types.UintType), types.UintType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ return lhs.(traits.Subtractor).Subtract(rhs)
+ }, traits.SubtractorType)),
+
+ // Relations operators
+
+ function(operators.Less,
+ decls.Overload(overloads.LessBool,
+ argTypes(types.BoolType, types.BoolType), types.BoolType),
+ decls.Overload(overloads.LessInt64,
+ argTypes(types.IntType, types.IntType), types.BoolType),
+ decls.Overload(overloads.LessInt64Double,
+ argTypes(types.IntType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.LessInt64Uint64,
+ argTypes(types.IntType, types.UintType), types.BoolType),
+ decls.Overload(overloads.LessUint64,
+ argTypes(types.UintType, types.UintType), types.BoolType),
+ decls.Overload(overloads.LessUint64Double,
+ argTypes(types.UintType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.LessUint64Int64,
+ argTypes(types.UintType, types.IntType), types.BoolType),
+ decls.Overload(overloads.LessDouble,
+ argTypes(types.DoubleType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.LessDoubleInt64,
+ argTypes(types.DoubleType, types.IntType), types.BoolType),
+ decls.Overload(overloads.LessDoubleUint64,
+ argTypes(types.DoubleType, types.UintType), types.BoolType),
+ decls.Overload(overloads.LessString,
+ argTypes(types.StringType, types.StringType), types.BoolType),
+ decls.Overload(overloads.LessBytes,
+ argTypes(types.BytesType, types.BytesType), types.BoolType),
+ decls.Overload(overloads.LessTimestamp,
+ argTypes(types.TimestampType, types.TimestampType), types.BoolType),
+ decls.Overload(overloads.LessDuration,
+ argTypes(types.DurationType, types.DurationType), types.BoolType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ cmp := lhs.(traits.Comparer).Compare(rhs)
+ if cmp == types.IntNegOne {
+ return types.True
+ }
+ if cmp == types.IntOne || cmp == types.IntZero {
+ return types.False
+ }
+ return cmp
+ }, traits.ComparerType)),
+
+ function(operators.LessEquals,
+ decls.Overload(overloads.LessEqualsBool,
+ argTypes(types.BoolType, types.BoolType), types.BoolType),
+ decls.Overload(overloads.LessEqualsInt64,
+ argTypes(types.IntType, types.IntType), types.BoolType),
+ decls.Overload(overloads.LessEqualsInt64Double,
+ argTypes(types.IntType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.LessEqualsInt64Uint64,
+ argTypes(types.IntType, types.UintType), types.BoolType),
+ decls.Overload(overloads.LessEqualsUint64,
+ argTypes(types.UintType, types.UintType), types.BoolType),
+ decls.Overload(overloads.LessEqualsUint64Double,
+ argTypes(types.UintType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.LessEqualsUint64Int64,
+ argTypes(types.UintType, types.IntType), types.BoolType),
+ decls.Overload(overloads.LessEqualsDouble,
+ argTypes(types.DoubleType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.LessEqualsDoubleInt64,
+ argTypes(types.DoubleType, types.IntType), types.BoolType),
+ decls.Overload(overloads.LessEqualsDoubleUint64,
+ argTypes(types.DoubleType, types.UintType), types.BoolType),
+ decls.Overload(overloads.LessEqualsString,
+ argTypes(types.StringType, types.StringType), types.BoolType),
+ decls.Overload(overloads.LessEqualsBytes,
+ argTypes(types.BytesType, types.BytesType), types.BoolType),
+ decls.Overload(overloads.LessEqualsTimestamp,
+ argTypes(types.TimestampType, types.TimestampType), types.BoolType),
+ decls.Overload(overloads.LessEqualsDuration,
+ argTypes(types.DurationType, types.DurationType), types.BoolType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ cmp := lhs.(traits.Comparer).Compare(rhs)
+ if cmp == types.IntNegOne || cmp == types.IntZero {
+ return types.True
+ }
+ if cmp == types.IntOne {
+ return types.False
+ }
+ return cmp
+ }, traits.ComparerType)),
+
+ function(operators.Greater,
+ decls.Overload(overloads.GreaterBool,
+ argTypes(types.BoolType, types.BoolType), types.BoolType),
+ decls.Overload(overloads.GreaterInt64,
+ argTypes(types.IntType, types.IntType), types.BoolType),
+ decls.Overload(overloads.GreaterInt64Double,
+ argTypes(types.IntType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.GreaterInt64Uint64,
+ argTypes(types.IntType, types.UintType), types.BoolType),
+ decls.Overload(overloads.GreaterUint64,
+ argTypes(types.UintType, types.UintType), types.BoolType),
+ decls.Overload(overloads.GreaterUint64Double,
+ argTypes(types.UintType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.GreaterUint64Int64,
+ argTypes(types.UintType, types.IntType), types.BoolType),
+ decls.Overload(overloads.GreaterDouble,
+ argTypes(types.DoubleType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.GreaterDoubleInt64,
+ argTypes(types.DoubleType, types.IntType), types.BoolType),
+ decls.Overload(overloads.GreaterDoubleUint64,
+ argTypes(types.DoubleType, types.UintType), types.BoolType),
+ decls.Overload(overloads.GreaterString,
+ argTypes(types.StringType, types.StringType), types.BoolType),
+ decls.Overload(overloads.GreaterBytes,
+ argTypes(types.BytesType, types.BytesType), types.BoolType),
+ decls.Overload(overloads.GreaterTimestamp,
+ argTypes(types.TimestampType, types.TimestampType), types.BoolType),
+ decls.Overload(overloads.GreaterDuration,
+ argTypes(types.DurationType, types.DurationType), types.BoolType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ cmp := lhs.(traits.Comparer).Compare(rhs)
+ if cmp == types.IntOne {
+ return types.True
+ }
+ if cmp == types.IntNegOne || cmp == types.IntZero {
+ return types.False
+ }
+ return cmp
+ }, traits.ComparerType)),
+
+ function(operators.GreaterEquals,
+ decls.Overload(overloads.GreaterEqualsBool,
+ argTypes(types.BoolType, types.BoolType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsInt64,
+ argTypes(types.IntType, types.IntType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsInt64Double,
+ argTypes(types.IntType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsInt64Uint64,
+ argTypes(types.IntType, types.UintType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsUint64,
+ argTypes(types.UintType, types.UintType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsUint64Double,
+ argTypes(types.UintType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsUint64Int64,
+ argTypes(types.UintType, types.IntType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsDouble,
+ argTypes(types.DoubleType, types.DoubleType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsDoubleInt64,
+ argTypes(types.DoubleType, types.IntType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsDoubleUint64,
+ argTypes(types.DoubleType, types.UintType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsString,
+ argTypes(types.StringType, types.StringType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsBytes,
+ argTypes(types.BytesType, types.BytesType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsTimestamp,
+ argTypes(types.TimestampType, types.TimestampType), types.BoolType),
+ decls.Overload(overloads.GreaterEqualsDuration,
+ argTypes(types.DurationType, types.DurationType), types.BoolType),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ cmp := lhs.(traits.Comparer).Compare(rhs)
+ if cmp == types.IntOne || cmp == types.IntZero {
+ return types.True
+ }
+ if cmp == types.IntNegOne {
+ return types.False
+ }
+ return cmp
+ }, traits.ComparerType)),
+
+ // Indexing
+ function(operators.Index,
+ decls.Overload(overloads.IndexList, argTypes(listOfA, types.IntType), paramA),
+ decls.Overload(overloads.IndexMap, argTypes(mapOfAB, paramA), paramB),
+ decls.SingletonBinaryBinding(func(lhs, rhs ref.Val) ref.Val {
+ return lhs.(traits.Indexer).Get(rhs)
+ }, traits.IndexerType)),
+
+ // Collections operators
+ function(operators.In,
+ decls.Overload(overloads.InList, argTypes(paramA, listOfA), types.BoolType),
+ decls.Overload(overloads.InMap, argTypes(paramA, mapOfAB), types.BoolType),
+ decls.SingletonBinaryBinding(inAggregate)),
+ function(operators.OldIn,
+ decls.DisableDeclaration(true), // safe deprecation
+ decls.Overload(overloads.InList, argTypes(paramA, listOfA), types.BoolType),
+ decls.Overload(overloads.InMap, argTypes(paramA, mapOfAB), types.BoolType),
+ decls.SingletonBinaryBinding(inAggregate)),
+ function(overloads.DeprecatedIn,
+ decls.DisableDeclaration(true), // safe deprecation
+ decls.Overload(overloads.InList, argTypes(paramA, listOfA), types.BoolType),
+ decls.Overload(overloads.InMap, argTypes(paramA, mapOfAB), types.BoolType),
+ decls.SingletonBinaryBinding(inAggregate)),
+ function(overloads.Size,
+ decls.Overload(overloads.SizeBytes, argTypes(types.BytesType), types.IntType),
+ decls.MemberOverload(overloads.SizeBytesInst, argTypes(types.BytesType), types.IntType),
+ decls.Overload(overloads.SizeList, argTypes(listOfA), types.IntType),
+ decls.MemberOverload(overloads.SizeListInst, argTypes(listOfA), types.IntType),
+ decls.Overload(overloads.SizeMap, argTypes(mapOfAB), types.IntType),
+ decls.MemberOverload(overloads.SizeMapInst, argTypes(mapOfAB), types.IntType),
+ decls.Overload(overloads.SizeString, argTypes(types.StringType), types.IntType),
+ decls.MemberOverload(overloads.SizeStringInst, argTypes(types.StringType), types.IntType),
+ decls.SingletonUnaryBinding(func(val ref.Val) ref.Val {
+ return val.(traits.Sizer).Size()
+ }, traits.SizerType)),
+
+ // Type conversions
+ function(overloads.TypeConvertType,
+ decls.Overload(overloads.TypeConvertType, argTypes(paramA), types.NewTypeTypeWithParam(paramA)),
+ decls.SingletonUnaryBinding(convertToType(types.TypeType))),
+
+ // Bool conversions
+ function(overloads.TypeConvertBool,
+ decls.Overload(overloads.BoolToBool, argTypes(types.BoolType), types.BoolType,
+ decls.UnaryBinding(identity)),
+ decls.Overload(overloads.StringToBool, argTypes(types.StringType), types.BoolType,
+ decls.UnaryBinding(convertToType(types.BoolType)))),
+
+ // Bytes conversions
+ function(overloads.TypeConvertBytes,
+ decls.Overload(overloads.BytesToBytes, argTypes(types.BytesType), types.BytesType,
+ decls.UnaryBinding(identity)),
+ decls.Overload(overloads.StringToBytes, argTypes(types.StringType), types.BytesType,
+ decls.UnaryBinding(convertToType(types.BytesType)))),
+
+ // Double conversions
+ function(overloads.TypeConvertDouble,
+ decls.Overload(overloads.DoubleToDouble, argTypes(types.DoubleType), types.DoubleType,
+ decls.UnaryBinding(identity)),
+ decls.Overload(overloads.IntToDouble, argTypes(types.IntType), types.DoubleType,
+ decls.UnaryBinding(convertToType(types.DoubleType))),
+ decls.Overload(overloads.StringToDouble, argTypes(types.StringType), types.DoubleType,
+ decls.UnaryBinding(convertToType(types.DoubleType))),
+ decls.Overload(overloads.UintToDouble, argTypes(types.UintType), types.DoubleType,
+ decls.UnaryBinding(convertToType(types.DoubleType)))),
+
+ // Duration conversions
+ function(overloads.TypeConvertDuration,
+ decls.Overload(overloads.DurationToDuration, argTypes(types.DurationType), types.DurationType,
+ decls.UnaryBinding(identity)),
+ decls.Overload(overloads.IntToDuration, argTypes(types.IntType), types.DurationType,
+ decls.UnaryBinding(convertToType(types.DurationType))),
+ decls.Overload(overloads.StringToDuration, argTypes(types.StringType), types.DurationType,
+ decls.UnaryBinding(convertToType(types.DurationType)))),
+
+ // Dyn conversions
+ function(overloads.TypeConvertDyn,
+ decls.Overload(overloads.ToDyn, argTypes(paramA), types.DynType),
+ decls.SingletonUnaryBinding(identity)),
+
+ // Int conversions
+ function(overloads.TypeConvertInt,
+ decls.Overload(overloads.IntToInt, argTypes(types.IntType), types.IntType,
+ decls.UnaryBinding(identity)),
+ decls.Overload(overloads.DoubleToInt, argTypes(types.DoubleType), types.IntType,
+ decls.UnaryBinding(convertToType(types.IntType))),
+ decls.Overload(overloads.DurationToInt, argTypes(types.DurationType), types.IntType,
+ decls.UnaryBinding(convertToType(types.IntType))),
+ decls.Overload(overloads.StringToInt, argTypes(types.StringType), types.IntType,
+ decls.UnaryBinding(convertToType(types.IntType))),
+ decls.Overload(overloads.TimestampToInt, argTypes(types.TimestampType), types.IntType,
+ decls.UnaryBinding(convertToType(types.IntType))),
+ decls.Overload(overloads.UintToInt, argTypes(types.UintType), types.IntType,
+ decls.UnaryBinding(convertToType(types.IntType))),
+ ),
+
+ // String conversions
+ function(overloads.TypeConvertString,
+ decls.Overload(overloads.StringToString, argTypes(types.StringType), types.StringType,
+ decls.UnaryBinding(identity)),
+ decls.Overload(overloads.BoolToString, argTypes(types.BoolType), types.StringType,
+ decls.UnaryBinding(convertToType(types.StringType))),
+ decls.Overload(overloads.BytesToString, argTypes(types.BytesType), types.StringType,
+ decls.UnaryBinding(convertToType(types.StringType))),
+ decls.Overload(overloads.DoubleToString, argTypes(types.DoubleType), types.StringType,
+ decls.UnaryBinding(convertToType(types.StringType))),
+ decls.Overload(overloads.DurationToString, argTypes(types.DurationType), types.StringType,
+ decls.UnaryBinding(convertToType(types.StringType))),
+ decls.Overload(overloads.IntToString, argTypes(types.IntType), types.StringType,
+ decls.UnaryBinding(convertToType(types.StringType))),
+ decls.Overload(overloads.TimestampToString, argTypes(types.TimestampType), types.StringType,
+ decls.UnaryBinding(convertToType(types.StringType))),
+ decls.Overload(overloads.UintToString, argTypes(types.UintType), types.StringType,
+ decls.UnaryBinding(convertToType(types.StringType)))),
+
+ // Timestamp conversions
+ function(overloads.TypeConvertTimestamp,
+ decls.Overload(overloads.TimestampToTimestamp, argTypes(types.TimestampType), types.TimestampType,
+ decls.UnaryBinding(identity)),
+ decls.Overload(overloads.IntToTimestamp, argTypes(types.IntType), types.TimestampType,
+ decls.UnaryBinding(convertToType(types.TimestampType))),
+ decls.Overload(overloads.StringToTimestamp, argTypes(types.StringType), types.TimestampType,
+ decls.UnaryBinding(convertToType(types.TimestampType)))),
+
+ // Uint conversions
+ function(overloads.TypeConvertUint,
+ decls.Overload(overloads.UintToUint, argTypes(types.UintType), types.UintType,
+ decls.UnaryBinding(identity)),
+ decls.Overload(overloads.DoubleToUint, argTypes(types.DoubleType), types.UintType,
+ decls.UnaryBinding(convertToType(types.UintType))),
+ decls.Overload(overloads.IntToUint, argTypes(types.IntType), types.UintType,
+ decls.UnaryBinding(convertToType(types.UintType))),
+ decls.Overload(overloads.StringToUint, argTypes(types.StringType), types.UintType,
+ decls.UnaryBinding(convertToType(types.UintType)))),
+
+ // String functions
+ function(overloads.Contains,
+ decls.MemberOverload(overloads.ContainsString,
+ argTypes(types.StringType, types.StringType), types.BoolType,
+ decls.BinaryBinding(types.StringContains)),
+ decls.DisableTypeGuards(true)),
+ function(overloads.EndsWith,
+ decls.MemberOverload(overloads.EndsWithString,
+ argTypes(types.StringType, types.StringType), types.BoolType,
+ decls.BinaryBinding(types.StringEndsWith)),
+ decls.DisableTypeGuards(true)),
+ function(overloads.StartsWith,
+ decls.MemberOverload(overloads.StartsWithString,
+ argTypes(types.StringType, types.StringType), types.BoolType,
+ decls.BinaryBinding(types.StringStartsWith)),
+ decls.DisableTypeGuards(true)),
+ function(overloads.Matches,
+ decls.Overload(overloads.Matches, argTypes(types.StringType, types.StringType), types.BoolType),
+ decls.MemberOverload(overloads.MatchesString,
+ argTypes(types.StringType, types.StringType), types.BoolType),
+ decls.SingletonBinaryBinding(func(str, pat ref.Val) ref.Val {
+ return str.(traits.Matcher).Match(pat)
+ }, traits.MatcherType)),
+
+ // Timestamp / duration functions
+ function(overloads.TimeGetFullYear,
+ decls.MemberOverload(overloads.TimestampToYear,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToYearWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType)),
+
+ function(overloads.TimeGetMonth,
+ decls.MemberOverload(overloads.TimestampToMonth,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToMonthWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType)),
+
+ function(overloads.TimeGetDayOfYear,
+ decls.MemberOverload(overloads.TimestampToDayOfYear,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToDayOfYearWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType)),
+
+ function(overloads.TimeGetDayOfMonth,
+ decls.MemberOverload(overloads.TimestampToDayOfMonthZeroBased,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToDayOfMonthZeroBasedWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType)),
+
+ function(overloads.TimeGetDate,
+ decls.MemberOverload(overloads.TimestampToDayOfMonthOneBased,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToDayOfMonthOneBasedWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType)),
+
+ function(overloads.TimeGetDayOfWeek,
+ decls.MemberOverload(overloads.TimestampToDayOfWeek,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToDayOfWeekWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType)),
+
+ function(overloads.TimeGetHours,
+ decls.MemberOverload(overloads.TimestampToHours,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToHoursWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType),
+ decls.MemberOverload(overloads.DurationToHours,
+ argTypes(types.DurationType), types.IntType)),
+
+ function(overloads.TimeGetMinutes,
+ decls.MemberOverload(overloads.TimestampToMinutes,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToMinutesWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType),
+ decls.MemberOverload(overloads.DurationToMinutes,
+ argTypes(types.DurationType), types.IntType)),
+
+ function(overloads.TimeGetSeconds,
+ decls.MemberOverload(overloads.TimestampToSeconds,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToSecondsWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType),
+ decls.MemberOverload(overloads.DurationToSeconds,
+ argTypes(types.DurationType), types.IntType)),
+
+ function(overloads.TimeGetMilliseconds,
+ decls.MemberOverload(overloads.TimestampToMilliseconds,
+ argTypes(types.TimestampType), types.IntType),
+ decls.MemberOverload(overloads.TimestampToMillisecondsWithTz,
+ argTypes(types.TimestampType, types.StringType), types.IntType),
+ decls.MemberOverload(overloads.DurationToMilliseconds,
+ argTypes(types.DurationType), types.IntType)),
+ }
+}
+
+// Functions returns the set of standard library function declarations and definitions for CEL.
+func Functions() []*decls.FunctionDecl {
+ return stdFunctions
+}
+
+// Types returns the set of standard library types for CEL.
+func Types() []*decls.VariableDecl {
+ return stdTypes
+}
+
+func notStrictlyFalse(value ref.Val) ref.Val {
+ if types.IsBool(value) {
+ return value
+ }
+ return types.True
+}
+
+func inAggregate(lhs ref.Val, rhs ref.Val) ref.Val {
+ if rhs.Type().HasTrait(traits.ContainerType) {
+ return rhs.(traits.Container).Contains(lhs)
+ }
+ return types.ValOrErr(rhs, "no such overload")
+}
+
+func function(name string, opts ...decls.FunctionOpt) *decls.FunctionDecl {
+ fn, err := decls.NewFunction(name, opts...)
+ if err != nil {
+ panic(err)
+ }
+ return fn
+}
+
+func argTypes(args ...*types.Type) []*types.Type {
+ return args
+}
+
+func noBinaryOverrides(rhs, lhs ref.Val) ref.Val {
+ return types.NoSuchOverloadErr()
+}
+
+func noFunctionOverrides(args ...ref.Val) ref.Val {
+ return types.NoSuchOverloadErr()
+}
+
+func identity(val ref.Val) ref.Val {
+ return val
+}
+
+func convertToType(t ref.Type) functions.UnaryOp {
+ return func(val ref.Val) ref.Val {
+ return val.ConvertToType(t)
+ }
+}
diff --git a/vendor/github.com/google/cel-go/common/types/BUILD.bazel b/vendor/github.com/google/cel-go/common/types/BUILD.bazel
index f56700d..8f010fa 100644
--- a/vendor/github.com/google/cel-go/common/types/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/common/types/BUILD.bazel
@@ -27,23 +27,25 @@ go_library(
"provider.go",
"string.go",
"timestamp.go",
- "type.go",
+ "types.go",
"uint.go",
"unknown.go",
"util.go",
],
importpath = "github.com/google/cel-go/common/types",
deps = [
+ "//checker/decls:go_default_library",
"//common/overloads:go_default_library",
"//common/types/pb:go_default_library",
"//common/types/ref:go_default_library",
"//common/types/traits:go_default_library",
"@com_github_stoewer_go_strcase//:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
- "@org_golang_google_genproto//googleapis/rpc/status:go_default_library",
+ "@dev_cel_expr//:expr",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//encoding/protojson:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//reflect/protoreflect:go_default_library",
+ "@org_golang_google_protobuf//types/dynamicpb:go_default_library",
"@org_golang_google_protobuf//types/known/anypb:go_default_library",
"@org_golang_google_protobuf//types/known/durationpb:go_default_library",
"@org_golang_google_protobuf//types/known/structpb:go_default_library",
@@ -71,8 +73,9 @@ go_test(
"provider_test.go",
"string_test.go",
"timestamp_test.go",
- "type_test.go",
+ "types_test.go",
"uint_test.go",
+ "unknown_test.go",
"util_test.go",
],
embed = [":go_default_library"],
@@ -80,7 +83,7 @@ go_test(
"//common/types/ref:go_default_library",
"//test:go_default_library",
"//test/proto3pb:test_all_types_go_proto",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//encoding/protojson:go_default_library",
"@org_golang_google_protobuf//types/known/anypb:go_default_library",
"@org_golang_google_protobuf//types/known/durationpb:go_default_library",
diff --git a/vendor/github.com/google/cel-go/common/types/bool.go b/vendor/github.com/google/cel-go/common/types/bool.go
index a634ecc..565734f 100644
--- a/vendor/github.com/google/cel-go/common/types/bool.go
+++ b/vendor/github.com/google/cel-go/common/types/bool.go
@@ -20,7 +20,6 @@ import (
"strconv"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
anypb "google.golang.org/protobuf/types/known/anypb"
structpb "google.golang.org/protobuf/types/known/structpb"
@@ -31,11 +30,6 @@ import (
type Bool bool
var (
- // BoolType singleton.
- BoolType = NewTypeValue("bool",
- traits.ComparerType,
- traits.NegatorType)
-
// boolWrapperType golang reflected type for protobuf bool wrapper type.
boolWrapperType = reflect.TypeOf(&wrapperspb.BoolValue{})
)
diff --git a/vendor/github.com/google/cel-go/common/types/bytes.go b/vendor/github.com/google/cel-go/common/types/bytes.go
index bef1907..7e813e2 100644
--- a/vendor/github.com/google/cel-go/common/types/bytes.go
+++ b/vendor/github.com/google/cel-go/common/types/bytes.go
@@ -22,7 +22,6 @@ import (
"unicode/utf8"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
anypb "google.golang.org/protobuf/types/known/anypb"
structpb "google.golang.org/protobuf/types/known/structpb"
@@ -34,12 +33,6 @@ import (
type Bytes []byte
var (
- // BytesType singleton.
- BytesType = NewTypeValue("bytes",
- traits.AdderType,
- traits.ComparerType,
- traits.SizerType)
-
// byteWrapperType golang reflected type for protobuf bytes wrapper type.
byteWrapperType = reflect.TypeOf(&wrapperspb.BytesValue{})
)
@@ -65,7 +58,17 @@ func (b Bytes) Compare(other ref.Val) ref.Val {
// ConvertToNative implements the ref.Val interface method.
func (b Bytes) ConvertToNative(typeDesc reflect.Type) (any, error) {
switch typeDesc.Kind() {
- case reflect.Array, reflect.Slice:
+ case reflect.Array:
+ if len(b) != typeDesc.Len() {
+ return nil, fmt.Errorf("[%d]byte not assignable to [%d]byte array", len(b), typeDesc.Len())
+ }
+ refArrPtr := reflect.New(reflect.ArrayOf(len(b), typeDesc.Elem()))
+ refArr := refArrPtr.Elem()
+ for i, byt := range b {
+ refArr.Index(i).Set(reflect.ValueOf(byt).Convert(typeDesc.Elem()))
+ }
+ return refArr.Interface(), nil
+ case reflect.Slice:
return reflect.ValueOf(b).Convert(typeDesc).Interface(), nil
case reflect.Ptr:
switch typeDesc {
diff --git a/vendor/github.com/google/cel-go/common/types/double.go b/vendor/github.com/google/cel-go/common/types/double.go
index bda9f31..027e789 100644
--- a/vendor/github.com/google/cel-go/common/types/double.go
+++ b/vendor/github.com/google/cel-go/common/types/double.go
@@ -20,7 +20,6 @@ import (
"reflect"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
anypb "google.golang.org/protobuf/types/known/anypb"
structpb "google.golang.org/protobuf/types/known/structpb"
@@ -32,15 +31,6 @@ import (
type Double float64
var (
- // DoubleType singleton.
- DoubleType = NewTypeValue("double",
- traits.AdderType,
- traits.ComparerType,
- traits.DividerType,
- traits.MultiplierType,
- traits.NegatorType,
- traits.SubtractorType)
-
// doubleWrapperType reflected type for protobuf double wrapper type.
doubleWrapperType = reflect.TypeOf(&wrapperspb.DoubleValue{})
diff --git a/vendor/github.com/google/cel-go/common/types/duration.go b/vendor/github.com/google/cel-go/common/types/duration.go
index c90ac1b..596e56d 100644
--- a/vendor/github.com/google/cel-go/common/types/duration.go
+++ b/vendor/github.com/google/cel-go/common/types/duration.go
@@ -22,7 +22,6 @@ import (
"github.com/google/cel-go/common/overloads"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
anypb "google.golang.org/protobuf/types/known/anypb"
dpb "google.golang.org/protobuf/types/known/durationpb"
@@ -41,13 +40,14 @@ func durationOf(d time.Duration) Duration {
}
var (
- // DurationType singleton.
- DurationType = NewTypeValue("google.protobuf.Duration",
- traits.AdderType,
- traits.ComparerType,
- traits.NegatorType,
- traits.ReceiverType,
- traits.SubtractorType)
+ durationValueType = reflect.TypeOf(&dpb.Duration{})
+
+ durationZeroArgOverloads = map[string]func(ref.Val) ref.Val{
+ overloads.TimeGetHours: DurationGetHours,
+ overloads.TimeGetMinutes: DurationGetMinutes,
+ overloads.TimeGetSeconds: DurationGetSeconds,
+ overloads.TimeGetMilliseconds: DurationGetMilliseconds,
+ }
)
// Add implements traits.Adder.Add.
@@ -156,7 +156,7 @@ func (d Duration) Negate() ref.Val {
func (d Duration) Receive(function string, overload string, args []ref.Val) ref.Val {
if len(args) == 0 {
if f, found := durationZeroArgOverloads[function]; found {
- return f(d.Duration)
+ return f(d)
}
}
return NoSuchOverloadErr()
@@ -185,20 +185,38 @@ func (d Duration) Value() any {
return d.Duration
}
-var (
- durationValueType = reflect.TypeOf(&dpb.Duration{})
+// DurationGetHours returns the duration in hours.
+func DurationGetHours(val ref.Val) ref.Val {
+ dur, ok := val.(Duration)
+ if !ok {
+ return MaybeNoSuchOverloadErr(val)
+ }
+ return Int(dur.Hours())
+}
- durationZeroArgOverloads = map[string]func(time.Duration) ref.Val{
- overloads.TimeGetHours: func(dur time.Duration) ref.Val {
- return Int(dur.Hours())
- },
- overloads.TimeGetMinutes: func(dur time.Duration) ref.Val {
- return Int(dur.Minutes())
- },
- overloads.TimeGetSeconds: func(dur time.Duration) ref.Val {
- return Int(dur.Seconds())
- },
- overloads.TimeGetMilliseconds: func(dur time.Duration) ref.Val {
- return Int(dur.Milliseconds())
- }}
-)
+// DurationGetMinutes returns duration in minutes.
+func DurationGetMinutes(val ref.Val) ref.Val {
+ dur, ok := val.(Duration)
+ if !ok {
+ return MaybeNoSuchOverloadErr(val)
+ }
+ return Int(dur.Minutes())
+}
+
+// DurationGetSeconds returns duration in seconds.
+func DurationGetSeconds(val ref.Val) ref.Val {
+ dur, ok := val.(Duration)
+ if !ok {
+ return MaybeNoSuchOverloadErr(val)
+ }
+ return Int(dur.Seconds())
+}
+
+// DurationGetMilliseconds returns duration in milliseconds.
+func DurationGetMilliseconds(val ref.Val) ref.Val {
+ dur, ok := val.(Duration)
+ if !ok {
+ return MaybeNoSuchOverloadErr(val)
+ }
+ return Int(dur.Milliseconds())
+}
diff --git a/vendor/github.com/google/cel-go/common/types/err.go b/vendor/github.com/google/cel-go/common/types/err.go
index b4874d9..9c9d9e2 100644
--- a/vendor/github.com/google/cel-go/common/types/err.go
+++ b/vendor/github.com/google/cel-go/common/types/err.go
@@ -31,11 +31,12 @@ type Error interface {
// Err type which extends the built-in go error and implements ref.Val.
type Err struct {
error
+ id int64
}
var (
// ErrType singleton.
- ErrType = NewTypeValue("error")
+ ErrType = NewOpaqueType("error")
// errDivideByZero is an error indicating a division by zero of an integer value.
errDivideByZero = errors.New("division by zero")
@@ -58,7 +59,24 @@ var (
// NewErr creates a new Err described by the format string and args.
// TODO: Audit the use of this function and standardize the error messages and codes.
func NewErr(format string, args ...any) ref.Val {
- return &Err{fmt.Errorf(format, args...)}
+ return &Err{error: fmt.Errorf(format, args...)}
+}
+
+// NewErrWithNodeID creates a new Err described by the format string and args.
+// TODO: Audit the use of this function and standardize the error messages and codes.
+func NewErrWithNodeID(id int64, format string, args ...any) ref.Val {
+ return &Err{error: fmt.Errorf(format, args...), id: id}
+}
+
+// LabelErrNode returns val unaltered it is not an Err or if the error has a non-zero
+// AST node ID already present. Otherwise the id is added to the error for
+// recovery with the Err.NodeID method.
+func LabelErrNode(id int64, val ref.Val) ref.Val {
+ if err, ok := val.(*Err); ok && err.id == 0 {
+ err.id = id
+ return err
+ }
+ return val
}
// NoSuchOverloadErr returns a new types.Err instance with a no such overload message.
@@ -124,11 +142,21 @@ func (e *Err) Value() any {
return e.error
}
+// NodeID returns the AST node ID of the expression that returned the error.
+func (e *Err) NodeID() int64 {
+ return e.id
+}
+
// Is implements errors.Is.
func (e *Err) Is(target error) bool {
return e.error.Error() == target.Error()
}
+// Unwrap implements errors.Unwrap.
+func (e *Err) Unwrap() error {
+ return e.error
+}
+
// IsError returns whether the input element ref.Type or ref.Val is equal to
// the ErrType singleton.
func IsError(val ref.Val) bool {
diff --git a/vendor/github.com/google/cel-go/common/types/int.go b/vendor/github.com/google/cel-go/common/types/int.go
index f5a9511..0ae9507 100644
--- a/vendor/github.com/google/cel-go/common/types/int.go
+++ b/vendor/github.com/google/cel-go/common/types/int.go
@@ -22,7 +22,6 @@ import (
"time"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
anypb "google.golang.org/protobuf/types/known/anypb"
structpb "google.golang.org/protobuf/types/known/structpb"
@@ -41,16 +40,6 @@ const (
)
var (
- // IntType singleton.
- IntType = NewTypeValue("int",
- traits.AdderType,
- traits.ComparerType,
- traits.DividerType,
- traits.ModderType,
- traits.MultiplierType,
- traits.NegatorType,
- traits.SubtractorType)
-
// int32WrapperType reflected type for protobuf int32 wrapper type.
int32WrapperType = reflect.TypeOf(&wrapperspb.Int32Value{})
@@ -101,6 +90,18 @@ func (i Int) ConvertToNative(typeDesc reflect.Type) (any, error) {
return nil, err
}
return reflect.ValueOf(v).Convert(typeDesc).Interface(), nil
+ case reflect.Int8:
+ v, err := int64ToInt8Checked(int64(i))
+ if err != nil {
+ return nil, err
+ }
+ return reflect.ValueOf(v).Convert(typeDesc).Interface(), nil
+ case reflect.Int16:
+ v, err := int64ToInt16Checked(int64(i))
+ if err != nil {
+ return nil, err
+ }
+ return reflect.ValueOf(v).Convert(typeDesc).Interface(), nil
case reflect.Int64:
return reflect.ValueOf(i).Convert(typeDesc).Interface(), nil
case reflect.Ptr:
diff --git a/vendor/github.com/google/cel-go/common/types/iterator.go b/vendor/github.com/google/cel-go/common/types/iterator.go
index 9f224ad..98e9147 100644
--- a/vendor/github.com/google/cel-go/common/types/iterator.go
+++ b/vendor/github.com/google/cel-go/common/types/iterator.go
@@ -24,7 +24,7 @@ import (
var (
// IteratorType singleton.
- IteratorType = NewTypeValue("iterator", traits.IteratorType)
+ IteratorType = NewObjectType("iterator", traits.IteratorType)
)
// baseIterator is the basis for list, map, and object iterators.
diff --git a/vendor/github.com/google/cel-go/common/types/list.go b/vendor/github.com/google/cel-go/common/types/list.go
index de5f209..ca47d39 100644
--- a/vendor/github.com/google/cel-go/common/types/list.go
+++ b/vendor/github.com/google/cel-go/common/types/list.go
@@ -29,25 +29,15 @@ import (
structpb "google.golang.org/protobuf/types/known/structpb"
)
-var (
- // ListType singleton.
- ListType = NewTypeValue("list",
- traits.AdderType,
- traits.ContainerType,
- traits.IndexerType,
- traits.IterableType,
- traits.SizerType)
-)
-
// NewDynamicList returns a traits.Lister with heterogenous elements.
// value should be an array of "native" types, i.e. any type that
// NativeToValue() can convert to a ref.Val.
-func NewDynamicList(adapter ref.TypeAdapter, value any) traits.Lister {
+func NewDynamicList(adapter Adapter, value any) traits.Lister {
refValue := reflect.ValueOf(value)
return &baseList{
- TypeAdapter: adapter,
- value: value,
- size: refValue.Len(),
+ Adapter: adapter,
+ value: value,
+ size: refValue.Len(),
get: func(i int) any {
return refValue.Index(i).Interface()
},
@@ -55,56 +45,56 @@ func NewDynamicList(adapter ref.TypeAdapter, value any) traits.Lister {
}
// NewStringList returns a traits.Lister containing only strings.
-func NewStringList(adapter ref.TypeAdapter, elems []string) traits.Lister {
+func NewStringList(adapter Adapter, elems []string) traits.Lister {
return &baseList{
- TypeAdapter: adapter,
- value: elems,
- size: len(elems),
- get: func(i int) any { return elems[i] },
+ Adapter: adapter,
+ value: elems,
+ size: len(elems),
+ get: func(i int) any { return elems[i] },
}
}
// NewRefValList returns a traits.Lister with ref.Val elements.
//
// This type specialization is used with list literals within CEL expressions.
-func NewRefValList(adapter ref.TypeAdapter, elems []ref.Val) traits.Lister {
+func NewRefValList(adapter Adapter, elems []ref.Val) traits.Lister {
return &baseList{
- TypeAdapter: adapter,
- value: elems,
- size: len(elems),
- get: func(i int) any { return elems[i] },
+ Adapter: adapter,
+ value: elems,
+ size: len(elems),
+ get: func(i int) any { return elems[i] },
}
}
// NewProtoList returns a traits.Lister based on a pb.List instance.
-func NewProtoList(adapter ref.TypeAdapter, list protoreflect.List) traits.Lister {
+func NewProtoList(adapter Adapter, list protoreflect.List) traits.Lister {
return &baseList{
- TypeAdapter: adapter,
- value: list,
- size: list.Len(),
- get: func(i int) any { return list.Get(i).Interface() },
+ Adapter: adapter,
+ value: list,
+ size: list.Len(),
+ get: func(i int) any { return list.Get(i).Interface() },
}
}
// NewJSONList returns a traits.Lister based on structpb.ListValue instance.
-func NewJSONList(adapter ref.TypeAdapter, l *structpb.ListValue) traits.Lister {
+func NewJSONList(adapter Adapter, l *structpb.ListValue) traits.Lister {
vals := l.GetValues()
return &baseList{
- TypeAdapter: adapter,
- value: l,
- size: len(vals),
- get: func(i int) any { return vals[i] },
+ Adapter: adapter,
+ value: l,
+ size: len(vals),
+ get: func(i int) any { return vals[i] },
}
}
// NewMutableList creates a new mutable list whose internal state can be modified.
-func NewMutableList(adapter ref.TypeAdapter) traits.MutableLister {
+func NewMutableList(adapter Adapter) traits.MutableLister {
var mutableValues []ref.Val
l := &mutableList{
baseList: &baseList{
- TypeAdapter: adapter,
- value: mutableValues,
- size: 0,
+ Adapter: adapter,
+ value: mutableValues,
+ size: 0,
},
mutableValues: mutableValues,
}
@@ -116,9 +106,9 @@ func NewMutableList(adapter ref.TypeAdapter) traits.MutableLister {
// baseList points to a list containing elements of any type.
// The `value` is an array of native values, and refValue is its reflection object.
-// The `ref.TypeAdapter` enables native type to CEL type conversions.
+// The `Adapter` enables native type to CEL type conversions.
type baseList struct {
- ref.TypeAdapter
+ Adapter
value any
// size indicates the number of elements within the list.
@@ -143,9 +133,9 @@ func (l *baseList) Add(other ref.Val) ref.Val {
return l
}
return &concatList{
- TypeAdapter: l.TypeAdapter,
- prevList: l,
- nextList: otherList}
+ Adapter: l.Adapter,
+ prevList: l,
+ nextList: otherList}
}
// Contains implements the traits.Container interface method.
@@ -200,7 +190,13 @@ func (l *baseList) ConvertToNative(typeDesc reflect.Type) (any, error) {
// Allow the element ConvertToNative() function to determine whether conversion is possible.
otherElemType := typeDesc.Elem()
elemCount := l.size
- nativeList := reflect.MakeSlice(typeDesc, elemCount, elemCount)
+ var nativeList reflect.Value
+ if typeDesc.Kind() == reflect.Array {
+ nativeList = reflect.New(reflect.ArrayOf(elemCount, typeDesc)).Elem().Index(0)
+ } else {
+ nativeList = reflect.MakeSlice(typeDesc, elemCount, elemCount)
+
+ }
for i := 0; i < elemCount; i++ {
elem := l.NativeToValue(l.get(i))
nativeElemVal, err := elem.ConvertToNative(otherElemType)
@@ -260,6 +256,15 @@ func (l *baseList) IsZeroValue() bool {
return l.size == 0
}
+// Fold calls the FoldEntry method for each (index, value) pair in the list.
+func (l *baseList) Fold(f traits.Folder) {
+ for i := 0; i < l.size; i++ {
+ if !f.FoldEntry(i, l.get(i)) {
+ break
+ }
+ }
+}
+
// Iterator implements the traits.Iterable interface method.
func (l *baseList) Iterator() traits.Iterator {
return newListIterator(l)
@@ -322,13 +327,13 @@ func (l *mutableList) Add(other ref.Val) ref.Val {
func (l *mutableList) ToImmutableList() traits.Lister {
// The reference to internal state is guaranteed to be safe as this call is only performed
// when mutations have been completed.
- return NewRefValList(l.TypeAdapter, l.mutableValues)
+ return NewRefValList(l.Adapter, l.mutableValues)
}
// concatList combines two list implementations together into a view.
-// The `ref.TypeAdapter` enables native type to CEL type conversions.
+// The `Adapter` enables native type to CEL type conversions.
type concatList struct {
- ref.TypeAdapter
+ Adapter
value any
prevList traits.Lister
nextList traits.Lister
@@ -347,9 +352,9 @@ func (l *concatList) Add(other ref.Val) ref.Val {
return l
}
return &concatList{
- TypeAdapter: l.TypeAdapter,
- prevList: l,
- nextList: otherList}
+ Adapter: l.Adapter,
+ prevList: l,
+ nextList: otherList}
}
// Contains implements the traits.Container interface method.
@@ -376,7 +381,7 @@ func (l *concatList) Contains(elem ref.Val) ref.Val {
// ConvertToNative implements the ref.Val interface method.
func (l *concatList) ConvertToNative(typeDesc reflect.Type) (any, error) {
- combined := NewDynamicList(l.TypeAdapter, l.Value().([]any))
+ combined := NewDynamicList(l.Adapter, l.Value().([]any))
return combined.ConvertToNative(typeDesc)
}
@@ -437,6 +442,15 @@ func (l *concatList) IsZeroValue() bool {
return l.Size().(Int) == 0
}
+// Fold calls the FoldEntry method for each (index, value) pair in the list.
+func (l *concatList) Fold(f traits.Folder) {
+ for i := Int(0); i < l.Size().(Int); i++ {
+ if !f.FoldEntry(i, l.Get(i)) {
+ break
+ }
+ }
+}
+
// Iterator implements the traits.Iterable interface method.
func (l *concatList) Iterator() traits.Iterator {
return newListIterator(l)
@@ -531,3 +545,30 @@ func IndexOrError(index ref.Val) (int, error) {
return -1, fmt.Errorf("unsupported index type '%s' in list", index.Type())
}
}
+
+// ToFoldableList will create a Foldable version of a list suitable for key-value pair iteration.
+//
+// For values which are already Foldable, this call is a no-op. For all other values, the fold is
+// driven via the Size() and Get() calls which means that the folding will function, but take a
+// performance hit.
+func ToFoldableList(l traits.Lister) traits.Foldable {
+ if f, ok := l.(traits.Foldable); ok {
+ return f
+ }
+ return interopFoldableList{Lister: l}
+}
+
+type interopFoldableList struct {
+ traits.Lister
+}
+
+// Fold implements the traits.Foldable interface method and performs an iteration over the
+// range of elements of the list.
+func (l interopFoldableList) Fold(f traits.Folder) {
+ sz := l.Size().(Int)
+ for i := Int(0); i < sz; i++ {
+ if !f.FoldEntry(i, l.Get(i)) {
+ break
+ }
+ }
+}
diff --git a/vendor/github.com/google/cel-go/common/types/map.go b/vendor/github.com/google/cel-go/common/types/map.go
index 213be4a..cb6cce7 100644
--- a/vendor/github.com/google/cel-go/common/types/map.go
+++ b/vendor/github.com/google/cel-go/common/types/map.go
@@ -32,10 +32,10 @@ import (
)
// NewDynamicMap returns a traits.Mapper value with dynamic key, value pairs.
-func NewDynamicMap(adapter ref.TypeAdapter, value any) traits.Mapper {
+func NewDynamicMap(adapter Adapter, value any) traits.Mapper {
refValue := reflect.ValueOf(value)
return &baseMap{
- TypeAdapter: adapter,
+ Adapter: adapter,
mapAccessor: newReflectMapAccessor(adapter, refValue),
value: value,
size: refValue.Len(),
@@ -46,10 +46,10 @@ func NewDynamicMap(adapter ref.TypeAdapter, value any) traits.Mapper {
// encoded in protocol buffer form.
//
// The `adapter` argument provides type adaptation capabilities from proto to CEL.
-func NewJSONStruct(adapter ref.TypeAdapter, value *structpb.Struct) traits.Mapper {
+func NewJSONStruct(adapter Adapter, value *structpb.Struct) traits.Mapper {
fields := value.GetFields()
return &baseMap{
- TypeAdapter: adapter,
+ Adapter: adapter,
mapAccessor: newJSONStructAccessor(adapter, fields),
value: value,
size: len(fields),
@@ -57,9 +57,9 @@ func NewJSONStruct(adapter ref.TypeAdapter, value *structpb.Struct) traits.Mappe
}
// NewRefValMap returns a specialized traits.Mapper with CEL valued keys and values.
-func NewRefValMap(adapter ref.TypeAdapter, value map[ref.Val]ref.Val) traits.Mapper {
+func NewRefValMap(adapter Adapter, value map[ref.Val]ref.Val) traits.Mapper {
return &baseMap{
- TypeAdapter: adapter,
+ Adapter: adapter,
mapAccessor: newRefValMapAccessor(value),
value: value,
size: len(value),
@@ -67,9 +67,9 @@ func NewRefValMap(adapter ref.TypeAdapter, value map[ref.Val]ref.Val) traits.Map
}
// NewStringInterfaceMap returns a specialized traits.Mapper with string keys and interface values.
-func NewStringInterfaceMap(adapter ref.TypeAdapter, value map[string]any) traits.Mapper {
+func NewStringInterfaceMap(adapter Adapter, value map[string]any) traits.Mapper {
return &baseMap{
- TypeAdapter: adapter,
+ Adapter: adapter,
mapAccessor: newStringIfaceMapAccessor(adapter, value),
value: value,
size: len(value),
@@ -77,9 +77,9 @@ func NewStringInterfaceMap(adapter ref.TypeAdapter, value map[string]any) traits
}
// NewStringStringMap returns a specialized traits.Mapper with string keys and values.
-func NewStringStringMap(adapter ref.TypeAdapter, value map[string]string) traits.Mapper {
+func NewStringStringMap(adapter Adapter, value map[string]string) traits.Mapper {
return &baseMap{
- TypeAdapter: adapter,
+ Adapter: adapter,
mapAccessor: newStringMapAccessor(value),
value: value,
size: len(value),
@@ -87,21 +87,30 @@ func NewStringStringMap(adapter ref.TypeAdapter, value map[string]string) traits
}
// NewProtoMap returns a specialized traits.Mapper for handling protobuf map values.
-func NewProtoMap(adapter ref.TypeAdapter, value *pb.Map) traits.Mapper {
+func NewProtoMap(adapter Adapter, value *pb.Map) traits.Mapper {
return &protoMap{
- TypeAdapter: adapter,
- value: value,
+ Adapter: adapter,
+ value: value,
}
}
-var (
- // MapType singleton.
- MapType = NewTypeValue("map",
- traits.ContainerType,
- traits.IndexerType,
- traits.IterableType,
- traits.SizerType)
-)
+// NewMutableMap constructs a mutable map from an adapter and a set of map values.
+func NewMutableMap(adapter Adapter, mutableValues map[ref.Val]ref.Val) traits.MutableMapper {
+ mutableCopy := make(map[ref.Val]ref.Val, len(mutableValues))
+ for k, v := range mutableValues {
+ mutableCopy[k] = v
+ }
+ m := &mutableMap{
+ baseMap: &baseMap{
+ Adapter: adapter,
+ mapAccessor: newRefValMapAccessor(mutableCopy),
+ value: mutableCopy,
+ size: len(mutableCopy),
+ },
+ mutableValues: mutableCopy,
+ }
+ return m
+}
// mapAccessor is a private interface for finding values within a map and iterating over the keys.
// This interface implements portions of the API surface area required by the traits.Mapper
@@ -114,6 +123,9 @@ type mapAccessor interface {
// Iterator returns an Iterator over the map key set.
Iterator() traits.Iterator
+
+ // Fold calls the FoldEntry method for each (key, value) pair in the map.
+ Fold(traits.Folder)
}
// baseMap is a reflection based map implementation designed to handle a variety of map-like types.
@@ -121,7 +133,7 @@ type mapAccessor interface {
// Since CEL is side-effect free, the base map represents an immutable object.
type baseMap struct {
// TypeAdapter used to convert keys and values accessed within the map.
- ref.TypeAdapter
+ Adapter
// mapAccessor interface implementation used to find and iterate over map keys.
mapAccessor
@@ -316,15 +328,37 @@ func (m *baseMap) Value() any {
return m.value
}
-func newJSONStructAccessor(adapter ref.TypeAdapter, st map[string]*structpb.Value) mapAccessor {
+// mutableMap holds onto a set of mutable values which are used for intermediate computations.
+type mutableMap struct {
+ *baseMap
+ mutableValues map[ref.Val]ref.Val
+}
+
+// Insert implements the traits.MutableMapper interface method, returning true if the key insertion
+// succeeds.
+func (m *mutableMap) Insert(k, v ref.Val) ref.Val {
+ if _, found := m.Find(k); found {
+ return NewErr("insert failed: key %v already exists", k)
+ }
+ m.mutableValues[k] = v
+ return m
+}
+
+// ToImmutableMap implements the traits.MutableMapper interface method, converting a mutable map
+// an immutable map implementation.
+func (m *mutableMap) ToImmutableMap() traits.Mapper {
+ return NewRefValMap(m.Adapter, m.mutableValues)
+}
+
+func newJSONStructAccessor(adapter Adapter, st map[string]*structpb.Value) mapAccessor {
return &jsonStructAccessor{
- TypeAdapter: adapter,
- st: st,
+ Adapter: adapter,
+ st: st,
}
}
type jsonStructAccessor struct {
- ref.TypeAdapter
+ Adapter
st map[string]*structpb.Value
}
@@ -359,17 +393,26 @@ func (a *jsonStructAccessor) Iterator() traits.Iterator {
}
}
-func newReflectMapAccessor(adapter ref.TypeAdapter, value reflect.Value) mapAccessor {
+// Fold calls the FoldEntry method for each (key, value) pair in the map.
+func (a *jsonStructAccessor) Fold(f traits.Folder) {
+ for k, v := range a.st {
+ if !f.FoldEntry(k, v) {
+ break
+ }
+ }
+}
+
+func newReflectMapAccessor(adapter Adapter, value reflect.Value) mapAccessor {
keyType := value.Type().Key()
return &reflectMapAccessor{
- TypeAdapter: adapter,
- refValue: value,
- keyType: keyType,
+ Adapter: adapter,
+ refValue: value,
+ keyType: keyType,
}
}
type reflectMapAccessor struct {
- ref.TypeAdapter
+ Adapter
refValue reflect.Value
keyType reflect.Type
}
@@ -427,9 +470,19 @@ func (m *reflectMapAccessor) findInternal(key ref.Val) (ref.Val, bool) {
// Iterator creates a Golang reflection based traits.Iterator.
func (m *reflectMapAccessor) Iterator() traits.Iterator {
return &mapIterator{
- TypeAdapter: m.TypeAdapter,
- mapKeys: m.refValue.MapRange(),
- len: m.refValue.Len(),
+ Adapter: m.Adapter,
+ mapKeys: m.refValue.MapRange(),
+ len: m.refValue.Len(),
+ }
+}
+
+// Fold calls the FoldEntry method for each (key, value) pair in the map.
+func (m *reflectMapAccessor) Fold(f traits.Folder) {
+ mapRange := m.refValue.MapRange()
+ for mapRange.Next() {
+ if !f.FoldEntry(mapRange.Key().Interface(), mapRange.Value().Interface()) {
+ break
+ }
}
}
@@ -480,9 +533,18 @@ func (a *refValMapAccessor) Find(key ref.Val) (ref.Val, bool) {
// Iterator produces a new traits.Iterator which iterates over the map keys via Golang reflection.
func (a *refValMapAccessor) Iterator() traits.Iterator {
return &mapIterator{
- TypeAdapter: DefaultTypeAdapter,
- mapKeys: reflect.ValueOf(a.mapVal).MapRange(),
- len: len(a.mapVal),
+ Adapter: DefaultTypeAdapter,
+ mapKeys: reflect.ValueOf(a.mapVal).MapRange(),
+ len: len(a.mapVal),
+ }
+}
+
+// Fold calls the FoldEntry method for each (key, value) pair in the map.
+func (a *refValMapAccessor) Fold(f traits.Folder) {
+ for k, v := range a.mapVal {
+ if !f.FoldEntry(k, v) {
+ break
+ }
}
}
@@ -524,15 +586,24 @@ func (a *stringMapAccessor) Iterator() traits.Iterator {
}
}
-func newStringIfaceMapAccessor(adapter ref.TypeAdapter, mapVal map[string]any) mapAccessor {
+// Fold calls the FoldEntry method for each (key, value) pair in the map.
+func (a *stringMapAccessor) Fold(f traits.Folder) {
+ for k, v := range a.mapVal {
+ if !f.FoldEntry(k, v) {
+ break
+ }
+ }
+}
+
+func newStringIfaceMapAccessor(adapter Adapter, mapVal map[string]any) mapAccessor {
return &stringIfaceMapAccessor{
- TypeAdapter: adapter,
- mapVal: mapVal,
+ Adapter: adapter,
+ mapVal: mapVal,
}
}
type stringIfaceMapAccessor struct {
- ref.TypeAdapter
+ Adapter
mapVal map[string]any
}
@@ -566,10 +637,19 @@ func (a *stringIfaceMapAccessor) Iterator() traits.Iterator {
}
}
+// Fold calls the FoldEntry method for each (key, value) pair in the map.
+func (a *stringIfaceMapAccessor) Fold(f traits.Folder) {
+ for k, v := range a.mapVal {
+ if !f.FoldEntry(k, v) {
+ break
+ }
+ }
+}
+
// protoMap is a specialized, separate implementation of the traits.Mapper interfaces tailored to
// accessing protoreflect.Map values.
type protoMap struct {
- ref.TypeAdapter
+ Adapter
value *pb.Map
}
@@ -772,12 +852,19 @@ func (m *protoMap) Iterator() traits.Iterator {
return true
})
return &protoMapIterator{
- TypeAdapter: m.TypeAdapter,
- mapKeys: mapKeys,
- len: m.value.Len(),
+ Adapter: m.Adapter,
+ mapKeys: mapKeys,
+ len: m.value.Len(),
}
}
+// Fold calls the FoldEntry method for each (key, value) pair in the map.
+func (m *protoMap) Fold(f traits.Folder) {
+ m.value.Range(func(k protoreflect.MapKey, v protoreflect.Value) bool {
+ return f.FoldEntry(k.Interface(), v.Interface())
+ })
+}
+
// Size returns the number of entries in the protoreflect.Map.
func (m *protoMap) Size() ref.Val {
return Int(m.value.Len())
@@ -795,7 +882,7 @@ func (m *protoMap) Value() any {
type mapIterator struct {
*baseIterator
- ref.TypeAdapter
+ Adapter
mapKeys *reflect.MapIter
cursor int
len int
@@ -818,7 +905,7 @@ func (it *mapIterator) Next() ref.Val {
type protoMapIterator struct {
*baseIterator
- ref.TypeAdapter
+ Adapter
mapKeys []protoreflect.MapKey
cursor int
len int
@@ -861,3 +948,55 @@ func (it *stringKeyIterator) Next() ref.Val {
}
return nil
}
+
+// ToFoldableMap will create a Foldable version of a map suitable for key-value pair iteration.
+//
+// For values which are already Foldable, this call is a no-op. For all other values, the fold
+// is driven via the Iterator HasNext() and Next() calls as well as the map's Get() method
+// which means that the folding will function, but take a performance hit.
+func ToFoldableMap(m traits.Mapper) traits.Foldable {
+ if f, ok := m.(traits.Foldable); ok {
+ return f
+ }
+ return interopFoldableMap{Mapper: m}
+}
+
+type interopFoldableMap struct {
+ traits.Mapper
+}
+
+func (m interopFoldableMap) Fold(f traits.Folder) {
+ it := m.Iterator()
+ for it.HasNext() == True {
+ k := it.Next()
+ if !f.FoldEntry(k, m.Get(k)) {
+ break
+ }
+ }
+}
+
+// InsertMapKeyValue inserts a key, value pair into the target map if the target map does not
+// already contain the given key.
+//
+// If the map is mutable, it is modified in-place per the MutableMapper contract.
+// If the map is not mutable, a copy containing the new key, value pair is made.
+func InsertMapKeyValue(m traits.Mapper, k, v ref.Val) ref.Val {
+ if mutable, ok := m.(traits.MutableMapper); ok {
+ return mutable.Insert(k, v)
+ }
+
+ // Otherwise perform the slow version of the insertion which makes a copy of the incoming map.
+ if _, found := m.Find(k); !found {
+ size := m.Size().(Int)
+ copy := make(map[ref.Val]ref.Val, size+1)
+ copy[k] = v
+ it := m.Iterator()
+ for it.HasNext() == True {
+ nextK := it.Next()
+ nextV := m.Get(nextK)
+ copy[nextK] = nextV
+ }
+ return DefaultTypeAdapter.NativeToValue(copy)
+ }
+ return NewErr("insert failed: key %v already exists", k)
+}
diff --git a/vendor/github.com/google/cel-go/common/types/null.go b/vendor/github.com/google/cel-go/common/types/null.go
index 38927a1..36514ff 100644
--- a/vendor/github.com/google/cel-go/common/types/null.go
+++ b/vendor/github.com/google/cel-go/common/types/null.go
@@ -30,13 +30,13 @@ import (
type Null structpb.NullValue
var (
- // NullType singleton.
- NullType = NewTypeValue("null_type")
// NullValue singleton.
NullValue = Null(structpb.NullValue_NULL_VALUE)
// golang reflect type for Null values.
nullReflectType = reflect.TypeOf(NullValue)
+
+ protoIfaceType = reflect.TypeOf((*proto.Message)(nil)).Elem()
)
// ConvertToNative implements ref.Val.ConvertToNative.
@@ -63,8 +63,14 @@ func (n Null) ConvertToNative(typeDesc reflect.Type) (any, error) {
return structpb.NewNullValue(), nil
case boolWrapperType, byteWrapperType, doubleWrapperType, floatWrapperType,
int32WrapperType, int64WrapperType, stringWrapperType, uint32WrapperType,
- uint64WrapperType:
+ uint64WrapperType, durationValueType, timestampValueType, protoIfaceType:
return nil, nil
+ case jsonListValueType, jsonStructType:
+ // skip handling
+ default:
+ if typeDesc.Implements(protoIfaceType) {
+ return nil, nil
+ }
}
case reflect.Interface:
nv := n.Value()
diff --git a/vendor/github.com/google/cel-go/common/types/object.go b/vendor/github.com/google/cel-go/common/types/object.go
index 9955e2d..8ba0af9 100644
--- a/vendor/github.com/google/cel-go/common/types/object.go
+++ b/vendor/github.com/google/cel-go/common/types/object.go
@@ -29,10 +29,10 @@ import (
)
type protoObj struct {
- ref.TypeAdapter
+ Adapter
value proto.Message
typeDesc *pb.TypeDescription
- typeValue *TypeValue
+ typeValue ref.Val
}
// NewObject returns an object based on a proto.Message value which handles
@@ -42,15 +42,15 @@ type protoObj struct {
// Note: the type value is pulled from the list of registered types within the
// type provider. If the proto type is not registered within the type provider,
// then this will result in an error within the type adapter / provider.
-func NewObject(adapter ref.TypeAdapter,
+func NewObject(adapter Adapter,
typeDesc *pb.TypeDescription,
- typeValue *TypeValue,
+ typeValue ref.Val,
value proto.Message) ref.Val {
return &protoObj{
- TypeAdapter: adapter,
- value: value,
- typeDesc: typeDesc,
- typeValue: typeValue}
+ Adapter: adapter,
+ value: value,
+ typeDesc: typeDesc,
+ typeValue: typeValue}
}
func (o *protoObj) ConvertToNative(typeDesc reflect.Type) (any, error) {
@@ -157,7 +157,7 @@ func (o *protoObj) Get(index ref.Val) ref.Val {
}
func (o *protoObj) Type() ref.Type {
- return o.typeValue
+ return o.typeValue.(ref.Type)
}
func (o *protoObj) Value() any {
diff --git a/vendor/github.com/google/cel-go/common/types/optional.go b/vendor/github.com/google/cel-go/common/types/optional.go
index 54cb35b..97845a7 100644
--- a/vendor/github.com/google/cel-go/common/types/optional.go
+++ b/vendor/github.com/google/cel-go/common/types/optional.go
@@ -24,7 +24,7 @@ import (
var (
// OptionalType indicates the runtime type of an optional value.
- OptionalType = NewTypeValue("optional")
+ OptionalType = NewOpaqueType("optional_type")
// OptionalNone is a sentinel value which is used to indicate an empty optional value.
OptionalNone = &Optional{}
diff --git a/vendor/github.com/google/cel-go/common/types/overflow.go b/vendor/github.com/google/cel-go/common/types/overflow.go
index c68a921..dcb66ef 100644
--- a/vendor/github.com/google/cel-go/common/types/overflow.go
+++ b/vendor/github.com/google/cel-go/common/types/overflow.go
@@ -326,6 +326,26 @@ func int64ToUint64Checked(v int64) (uint64, error) {
return uint64(v), nil
}
+// int64ToInt8Checked converts an int64 to an int8 value.
+//
+// If the conversion fails due to overflow the error return value will be non-nil.
+func int64ToInt8Checked(v int64) (int8, error) {
+ if v < math.MinInt8 || v > math.MaxInt8 {
+ return 0, errIntOverflow
+ }
+ return int8(v), nil
+}
+
+// int64ToInt16Checked converts an int64 to an int16 value.
+//
+// If the conversion fails due to overflow the error return value will be non-nil.
+func int64ToInt16Checked(v int64) (int16, error) {
+ if v < math.MinInt16 || v > math.MaxInt16 {
+ return 0, errIntOverflow
+ }
+ return int16(v), nil
+}
+
// int64ToInt32Checked converts an int64 to an int32 value.
//
// If the conversion fails due to overflow the error return value will be non-nil.
@@ -336,6 +356,26 @@ func int64ToInt32Checked(v int64) (int32, error) {
return int32(v), nil
}
+// uint64ToUint8Checked converts a uint64 to a uint8 value.
+//
+// If the conversion fails due to overflow the error return value will be non-nil.
+func uint64ToUint8Checked(v uint64) (uint8, error) {
+ if v > math.MaxUint8 {
+ return 0, errUintOverflow
+ }
+ return uint8(v), nil
+}
+
+// uint64ToUint16Checked converts a uint64 to a uint16 value.
+//
+// If the conversion fails due to overflow the error return value will be non-nil.
+func uint64ToUint16Checked(v uint64) (uint16, error) {
+ if v > math.MaxUint16 {
+ return 0, errUintOverflow
+ }
+ return uint16(v), nil
+}
+
// uint64ToUint32Checked converts a uint64 to a uint32 value.
//
// If the conversion fails due to overflow the error return value will be non-nil.
diff --git a/vendor/github.com/google/cel-go/common/types/pb/BUILD.bazel b/vendor/github.com/google/cel-go/common/types/pb/BUILD.bazel
index f23ac9c..e2b9d37 100644
--- a/vendor/github.com/google/cel-go/common/types/pb/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/common/types/pb/BUILD.bazel
@@ -17,7 +17,7 @@ go_library(
],
importpath = "github.com/google/cel-go/common/types/pb",
deps = [
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//encoding/protowire:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//reflect/protoreflect:go_default_library",
diff --git a/vendor/github.com/google/cel-go/common/types/pb/type.go b/vendor/github.com/google/cel-go/common/types/pb/type.go
index df95321..bdd474c 100644
--- a/vendor/github.com/google/cel-go/common/types/pb/type.go
+++ b/vendor/github.com/google/cel-go/common/types/pb/type.go
@@ -285,7 +285,7 @@ func (fd *FieldDescription) GetFrom(target any) (any, error) {
// IsEnum returns true if the field type refers to an enum value.
func (fd *FieldDescription) IsEnum() bool {
- return fd.desc.Kind() == protoreflect.EnumKind
+ return fd.ProtoKind() == protoreflect.EnumKind
}
// IsMap returns true if the field is of map type.
@@ -295,7 +295,7 @@ func (fd *FieldDescription) IsMap() bool {
// IsMessage returns true if the field is of message type.
func (fd *FieldDescription) IsMessage() bool {
- kind := fd.desc.Kind()
+ kind := fd.ProtoKind()
return kind == protoreflect.MessageKind || kind == protoreflect.GroupKind
}
@@ -326,6 +326,11 @@ func (fd *FieldDescription) Name() string {
return string(fd.desc.Name())
}
+// ProtoKind returns the protobuf reflected kind of the field.
+func (fd *FieldDescription) ProtoKind() protoreflect.Kind {
+ return fd.desc.Kind()
+}
+
// ReflectType returns the Golang reflect.Type for this field.
func (fd *FieldDescription) ReflectType() reflect.Type {
return fd.reflectType
@@ -345,17 +350,17 @@ func (fd *FieldDescription) Zero() proto.Message {
}
func (fd *FieldDescription) typeDefToType() *exprpb.Type {
- if fd.desc.Kind() == protoreflect.MessageKind || fd.desc.Kind() == protoreflect.GroupKind {
+ if fd.IsMessage() {
msgType := string(fd.desc.Message().FullName())
if wk, found := CheckedWellKnowns[msgType]; found {
return wk
}
return checkedMessageType(msgType)
}
- if fd.desc.Kind() == protoreflect.EnumKind {
+ if fd.IsEnum() {
return checkedInt
}
- return CheckedPrimitives[fd.desc.Kind()]
+ return CheckedPrimitives[fd.ProtoKind()]
}
// Map wraps the protoreflect.Map object with a key and value FieldDescription for use in
@@ -422,22 +427,49 @@ func unwrap(desc description, msg proto.Message) (any, bool, error) {
return structpb.NullValue_NULL_VALUE, true, nil
}
case *wrapperspb.BoolValue:
+ if v == nil {
+ return nil, true, nil
+ }
return v.GetValue(), true, nil
case *wrapperspb.BytesValue:
+ if v == nil {
+ return nil, true, nil
+ }
return v.GetValue(), true, nil
case *wrapperspb.DoubleValue:
+ if v == nil {
+ return nil, true, nil
+ }
return v.GetValue(), true, nil
case *wrapperspb.FloatValue:
+ if v == nil {
+ return nil, true, nil
+ }
return float64(v.GetValue()), true, nil
case *wrapperspb.Int32Value:
+ if v == nil {
+ return nil, true, nil
+ }
return int64(v.GetValue()), true, nil
case *wrapperspb.Int64Value:
+ if v == nil {
+ return nil, true, nil
+ }
return v.GetValue(), true, nil
case *wrapperspb.StringValue:
+ if v == nil {
+ return nil, true, nil
+ }
return v.GetValue(), true, nil
case *wrapperspb.UInt32Value:
+ if v == nil {
+ return nil, true, nil
+ }
return uint64(v.GetValue()), true, nil
case *wrapperspb.UInt64Value:
+ if v == nil {
+ return nil, true, nil
+ }
return v.GetValue(), true, nil
}
return msg, false, nil
@@ -463,13 +495,13 @@ func unwrapDynamic(desc description, refMsg protoreflect.Message) (any, bool, er
unwrappedAny := &anypb.Any{}
err := Merge(unwrappedAny, msg)
if err != nil {
- return nil, false, err
+ return nil, false, fmt.Errorf("unwrap dynamic field failed: %v", err)
}
dynMsg, err := unwrappedAny.UnmarshalNew()
if err != nil {
// Allow the error to move further up the stack as it should result in an type
// conversion error if the caller does not recover it somehow.
- return nil, false, err
+ return nil, false, fmt.Errorf("unmarshal dynamic any failed: %v", err)
}
// Attempt to unwrap the dynamic type, otherwise return the dynamic message.
unwrapped, nested, err := unwrapDynamic(desc, dynMsg.ProtoReflect())
@@ -560,8 +592,10 @@ func zeroValueOf(msg proto.Message) proto.Message {
}
var (
+ jsonValueTypeURL = "types.googleapis.com/google.protobuf.Value"
+
zeroValueMap = map[string]proto.Message{
- "google.protobuf.Any": &anypb.Any{},
+ "google.protobuf.Any": &anypb.Any{TypeUrl: jsonValueTypeURL},
"google.protobuf.Duration": &dpb.Duration{},
"google.protobuf.ListValue": &structpb.ListValue{},
"google.protobuf.Struct": &structpb.Struct{},
diff --git a/vendor/github.com/google/cel-go/common/types/provider.go b/vendor/github.com/google/cel-go/common/types/provider.go
index e66951f..936a4e2 100644
--- a/vendor/github.com/google/cel-go/common/types/provider.go
+++ b/vendor/github.com/google/cel-go/common/types/provider.go
@@ -33,17 +33,68 @@ import (
tpb "google.golang.org/protobuf/types/known/timestamppb"
)
-type protoTypeRegistry struct {
- revTypeMap map[string]ref.Type
+// Adapter converts native Go values of varying type and complexity to equivalent CEL values.
+type Adapter = ref.TypeAdapter
+
+// Provider specifies functions for creating new object instances and for resolving
+// enum values by name.
+type Provider interface {
+ // EnumValue returns the numeric value of the given enum value name.
+ EnumValue(enumName string) ref.Val
+
+ // FindIdent takes a qualified identifier name and returns a ref.Val if one exists.
+ FindIdent(identName string) (ref.Val, bool)
+
+ // FindStructType returns the Type give a qualified type name.
+ //
+ // For historical reasons, only struct types are expected to be returned through this
+ // method, and the type values are expected to be wrapped in a TypeType instance using
+ // TypeTypeWithParam(<structType>).
+ //
+ // Returns false if not found.
+ FindStructType(structType string) (*Type, bool)
+
+ // FindStructFieldNames returns thet field names associated with the type, if the type
+ // is found.
+ FindStructFieldNames(structType string) ([]string, bool)
+
+ // FieldStructFieldType returns the field type for a checked type value. Returns
+ // false if the field could not be found.
+ FindStructFieldType(structType, fieldName string) (*FieldType, bool)
+
+ // NewValue creates a new type value from a qualified name and map of field
+ // name to value.
+ //
+ // Note, for each value, the Val.ConvertToNative function will be invoked
+ // to convert the Val to the field's native type. If an error occurs during
+ // conversion, the NewValue will be a types.Err.
+ NewValue(structType string, fields map[string]ref.Val) ref.Val
+}
+
+// FieldType represents a field's type value and whether that field supports presence detection.
+type FieldType struct {
+ // Type of the field as a CEL native type value.
+ Type *Type
+
+ // IsSet indicates whether the field is set on an input object.
+ IsSet ref.FieldTester
+
+ // GetFrom retrieves the field value on the input object, if set.
+ GetFrom ref.FieldGetter
+}
+
+// Registry provides type information for a set of registered types.
+type Registry struct {
+ revTypeMap map[string]*Type
pbdb *pb.Db
}
// NewRegistry accepts a list of proto message instances and returns a type
// provider which can create new instances of the provided message or any
// message that proto depends upon in its FileDescriptor.
-func NewRegistry(types ...proto.Message) (ref.TypeRegistry, error) {
- p := &protoTypeRegistry{
- revTypeMap: make(map[string]ref.Type),
+func NewRegistry(types ...proto.Message) (*Registry, error) {
+ p := &Registry{
+ revTypeMap: make(map[string]*Type),
pbdb: pb.NewDb(),
}
err := p.RegisterType(
@@ -79,18 +130,17 @@ func NewRegistry(types ...proto.Message) (ref.TypeRegistry, error) {
}
// NewEmptyRegistry returns a registry which is completely unconfigured.
-func NewEmptyRegistry() ref.TypeRegistry {
- return &protoTypeRegistry{
- revTypeMap: make(map[string]ref.Type),
+func NewEmptyRegistry() *Registry {
+ return &Registry{
+ revTypeMap: make(map[string]*Type),
pbdb: pb.NewDb(),
}
}
-// Copy implements the ref.TypeRegistry interface method which copies the current state of the
-// registry into its own memory space.
-func (p *protoTypeRegistry) Copy() ref.TypeRegistry {
- copy := &protoTypeRegistry{
- revTypeMap: make(map[string]ref.Type),
+// Copy copies the current state of the registry into its own memory space.
+func (p *Registry) Copy() *Registry {
+ copy := &Registry{
+ revTypeMap: make(map[string]*Type),
pbdb: p.pbdb.Copy(),
}
for k, v := range p.revTypeMap {
@@ -99,7 +149,8 @@ func (p *protoTypeRegistry) Copy() ref.TypeRegistry {
return copy
}
-func (p *protoTypeRegistry) EnumValue(enumName string) ref.Val {
+// EnumValue returns the numeric value of the given enum value name.
+func (p *Registry) EnumValue(enumName string) ref.Val {
enumVal, found := p.pbdb.DescribeEnum(enumName)
if !found {
return NewErr("unknown enum name '%s'", enumName)
@@ -107,9 +158,12 @@ func (p *protoTypeRegistry) EnumValue(enumName string) ref.Val {
return Int(enumVal.Value())
}
-func (p *protoTypeRegistry) FindFieldType(messageType string,
- fieldName string) (*ref.FieldType, bool) {
- msgType, found := p.pbdb.DescribeType(messageType)
+// FindFieldType returns the field type for a checked type value. Returns false if
+// the field could not be found.
+//
+// Deprecated: use FindStructFieldType
+func (p *Registry) FindFieldType(structType, fieldName string) (*ref.FieldType, bool) {
+ msgType, found := p.pbdb.DescribeType(structType)
if !found {
return nil, false
}
@@ -118,15 +172,49 @@ func (p *protoTypeRegistry) FindFieldType(messageType string,
return nil, false
}
return &ref.FieldType{
- Type: field.CheckedType(),
- IsSet: field.IsSet,
- GetFrom: field.GetFrom},
- true
+ Type: field.CheckedType(),
+ IsSet: field.IsSet,
+ GetFrom: field.GetFrom}, true
+}
+
+// FindStructFieldNames returns the set of field names for the given struct type,
+// if the type exists in the registry.
+func (p *Registry) FindStructFieldNames(structType string) ([]string, bool) {
+ msgType, found := p.pbdb.DescribeType(structType)
+ if !found {
+ return []string{}, false
+ }
+ fieldMap := msgType.FieldMap()
+ fields := make([]string, len(fieldMap))
+ idx := 0
+ for f := range fieldMap {
+ fields[idx] = f
+ idx++
+ }
+ return fields, true
}
-func (p *protoTypeRegistry) FindIdent(identName string) (ref.Val, bool) {
+// FindStructFieldType returns the field type for a checked type value. Returns
+// false if the field could not be found.
+func (p *Registry) FindStructFieldType(structType, fieldName string) (*FieldType, bool) {
+ msgType, found := p.pbdb.DescribeType(structType)
+ if !found {
+ return nil, false
+ }
+ field, found := msgType.FieldByName(fieldName)
+ if !found {
+ return nil, false
+ }
+ return &FieldType{
+ Type: fieldDescToCELType(field),
+ IsSet: field.IsSet,
+ GetFrom: field.GetFrom}, true
+}
+
+// FindIdent takes a qualified identifier name and returns a ref.Val if one exists.
+func (p *Registry) FindIdent(identName string) (ref.Val, bool) {
if t, found := p.revTypeMap[identName]; found {
- return t.(ref.Val), true
+ return t, true
}
if enumVal, found := p.pbdb.DescribeEnum(identName); found {
return Int(enumVal.Value()), true
@@ -134,24 +222,50 @@ func (p *protoTypeRegistry) FindIdent(identName string) (ref.Val, bool) {
return nil, false
}
-func (p *protoTypeRegistry) FindType(typeName string) (*exprpb.Type, bool) {
- if _, found := p.pbdb.DescribeType(typeName); !found {
+// FindType looks up the Type given a qualified typeName. Returns false if not found.
+//
+// Deprecated: use FindStructType
+func (p *Registry) FindType(structType string) (*exprpb.Type, bool) {
+ if _, found := p.pbdb.DescribeType(structType); !found {
return nil, false
}
- if typeName != "" && typeName[0] == '.' {
- typeName = typeName[1:]
+ if structType != "" && structType[0] == '.' {
+ structType = structType[1:]
}
return &exprpb.Type{
TypeKind: &exprpb.Type_Type{
Type: &exprpb.Type{
TypeKind: &exprpb.Type_MessageType{
- MessageType: typeName}}}}, true
+ MessageType: structType}}}}, true
}
-func (p *protoTypeRegistry) NewValue(typeName string, fields map[string]ref.Val) ref.Val {
- td, found := p.pbdb.DescribeType(typeName)
+// FindStructType returns the Type give a qualified type name.
+//
+// For historical reasons, only struct types are expected to be returned through this
+// method, and the type values are expected to be wrapped in a TypeType instance using
+// TypeTypeWithParam(<structType>).
+//
+// Returns false if not found.
+func (p *Registry) FindStructType(structType string) (*Type, bool) {
+ if _, found := p.pbdb.DescribeType(structType); !found {
+ return nil, false
+ }
+ if structType != "" && structType[0] == '.' {
+ structType = structType[1:]
+ }
+ return NewTypeTypeWithParam(NewObjectType(structType)), true
+}
+
+// NewValue creates a new type value from a qualified name and map of field
+// name to value.
+//
+// Note, for each value, the Val.ConvertToNative function will be invoked
+// to convert the Val to the field's native type. If an error occurs during
+// conversion, the NewValue will be a types.Err.
+func (p *Registry) NewValue(structType string, fields map[string]ref.Val) ref.Val {
+ td, found := p.pbdb.DescribeType(structType)
if !found {
- return NewErr("unknown type '%s'", typeName)
+ return NewErr("unknown type '%s'", structType)
}
msg := td.New()
fieldMap := td.FieldMap()
@@ -162,13 +276,14 @@ func (p *protoTypeRegistry) NewValue(typeName string, fields map[string]ref.Val)
}
err := msgSetField(msg, field, value)
if err != nil {
- return &Err{err}
+ return &Err{error: err}
}
}
return p.NativeToValue(msg.Interface())
}
-func (p *protoTypeRegistry) RegisterDescriptor(fileDesc protoreflect.FileDescriptor) error {
+// RegisterDescriptor registers the contents of a protocol buffer `FileDescriptor`.
+func (p *Registry) RegisterDescriptor(fileDesc protoreflect.FileDescriptor) error {
fd, err := p.pbdb.RegisterDescriptor(fileDesc)
if err != nil {
return err
@@ -176,7 +291,8 @@ func (p *protoTypeRegistry) RegisterDescriptor(fileDesc protoreflect.FileDescrip
return p.registerAllTypes(fd)
}
-func (p *protoTypeRegistry) RegisterMessage(message proto.Message) error {
+// RegisterMessage registers a protocol buffer message and its dependencies.
+func (p *Registry) RegisterMessage(message proto.Message) error {
fd, err := p.pbdb.RegisterMessage(message)
if err != nil {
return err
@@ -184,11 +300,32 @@ func (p *protoTypeRegistry) RegisterMessage(message proto.Message) error {
return p.registerAllTypes(fd)
}
-func (p *protoTypeRegistry) RegisterType(types ...ref.Type) error {
+// RegisterType registers a type value with the provider which ensures the provider is aware of how to
+// map the type to an identifier.
+//
+// If the `ref.Type` value is a `*types.Type` it will be registered directly by its runtime type name.
+// If the `ref.Type` value is not a `*types.Type` instance, a `*types.Type` instance which reflects the
+// traits present on the input and the runtime type name. By default this foreign type will be treated
+// as a types.StructKind. To avoid potential issues where the `ref.Type` values does not match the
+// generated `*types.Type` instance, consider always using the `*types.Type` to represent type extensions
+// to CEL, even when they're not based on protobuf types.
+func (p *Registry) RegisterType(types ...ref.Type) error {
for _, t := range types {
- p.revTypeMap[t.TypeName()] = t
+ celType := maybeForeignType(t)
+ existing, found := p.revTypeMap[t.TypeName()]
+ if !found {
+ p.revTypeMap[t.TypeName()] = celType
+ continue
+ }
+ if !existing.IsEquivalentType(celType) {
+ return fmt.Errorf("type registration conflict. found: %v, input: %v", existing, celType)
+ }
+ if existing.traitMask != celType.traitMask {
+ return fmt.Errorf(
+ "type registered with conflicting traits: %v with traits %v, input: %v",
+ existing.TypeName(), existing.traitMask, celType.traitMask)
+ }
}
- // TODO: generate an error when the type name is registered more than once.
return nil
}
@@ -196,7 +333,7 @@ func (p *protoTypeRegistry) RegisterType(types ...ref.Type) error {
// providing support for custom proto-based types.
//
// This method should be the inverse of ref.Val.ConvertToNative.
-func (p *protoTypeRegistry) NativeToValue(value any) ref.Val {
+func (p *Registry) NativeToValue(value any) ref.Val {
if val, found := nativeToValue(p, value); found {
return val
}
@@ -218,7 +355,7 @@ func (p *protoTypeRegistry) NativeToValue(value any) ref.Val {
if !found {
return NewErr("unknown type: '%s'", typeName)
}
- return NewObject(p, td, typeVal.(*TypeValue), v)
+ return NewObject(p, td, typeVal, v)
case *pb.Map:
return NewProtoMap(p, v)
case protoreflect.List:
@@ -231,8 +368,13 @@ func (p *protoTypeRegistry) NativeToValue(value any) ref.Val {
return UnsupportedRefValConversionErr(value)
}
-func (p *protoTypeRegistry) registerAllTypes(fd *pb.FileDescription) error {
+func (p *Registry) registerAllTypes(fd *pb.FileDescription) error {
for _, typeName := range fd.GetTypeNames() {
+ // skip well-known type names since they're automatically sanitized
+ // during NewObjectType() calls.
+ if _, found := checkedWellKnowns[typeName]; found {
+ continue
+ }
err := p.RegisterType(NewObjectTypeValue(typeName))
if err != nil {
return err
@@ -241,6 +383,28 @@ func (p *protoTypeRegistry) registerAllTypes(fd *pb.FileDescription) error {
return nil
}
+func fieldDescToCELType(field *pb.FieldDescription) *Type {
+ if field.IsMap() {
+ return NewMapType(
+ singularFieldDescToCELType(field.KeyType),
+ singularFieldDescToCELType(field.ValueType))
+ }
+ if field.IsList() {
+ return NewListType(singularFieldDescToCELType(field))
+ }
+ return singularFieldDescToCELType(field)
+}
+
+func singularFieldDescToCELType(field *pb.FieldDescription) *Type {
+ if field.IsMessage() {
+ return NewObjectType(string(field.Descriptor().Message().FullName()))
+ }
+ if field.IsEnum() {
+ return IntType
+ }
+ return ProtoCELPrimitives[field.ProtoKind()]
+}
+
// defaultTypeAdapter converts go native types to CEL values.
type defaultTypeAdapter struct{}
@@ -259,7 +423,7 @@ func (a *defaultTypeAdapter) NativeToValue(value any) ref.Val {
// nativeToValue returns the converted (ref.Val, true) of a conversion is found,
// otherwise (nil, false)
-func nativeToValue(a ref.TypeAdapter, value any) (ref.Val, bool) {
+func nativeToValue(a Adapter, value any) (ref.Val, bool) {
switch v := value.(type) {
case nil:
return NullValue, true
@@ -421,17 +585,46 @@ func nativeToValue(a ref.TypeAdapter, value any) (ref.Val, bool) {
refKind := refValue.Kind()
switch refKind {
case reflect.Array, reflect.Slice:
+ if refValue.Type().Elem() == reflect.TypeOf(byte(0)) {
+ if refValue.CanAddr() {
+ return Bytes(refValue.Bytes()), true
+ }
+ tmp := reflect.New(refValue.Type())
+ tmp.Elem().Set(refValue)
+ return Bytes(tmp.Elem().Bytes()), true
+ }
return NewDynamicList(a, v), true
case reflect.Map:
return NewDynamicMap(a, v), true
// type aliases of primitive types cannot be asserted as that type, but rather need
// to be downcast to int32 before being converted to a CEL representation.
+ case reflect.Bool:
+ boolTupe := reflect.TypeOf(false)
+ return Bool(refValue.Convert(boolTupe).Interface().(bool)), true
+ case reflect.Int:
+ intType := reflect.TypeOf(int(0))
+ return Int(refValue.Convert(intType).Interface().(int)), true
+ case reflect.Int8:
+ intType := reflect.TypeOf(int8(0))
+ return Int(refValue.Convert(intType).Interface().(int8)), true
+ case reflect.Int16:
+ intType := reflect.TypeOf(int16(0))
+ return Int(refValue.Convert(intType).Interface().(int16)), true
case reflect.Int32:
intType := reflect.TypeOf(int32(0))
return Int(refValue.Convert(intType).Interface().(int32)), true
case reflect.Int64:
intType := reflect.TypeOf(int64(0))
return Int(refValue.Convert(intType).Interface().(int64)), true
+ case reflect.Uint:
+ uintType := reflect.TypeOf(uint(0))
+ return Uint(refValue.Convert(uintType).Interface().(uint)), true
+ case reflect.Uint8:
+ uintType := reflect.TypeOf(uint8(0))
+ return Uint(refValue.Convert(uintType).Interface().(uint8)), true
+ case reflect.Uint16:
+ uintType := reflect.TypeOf(uint16(0))
+ return Uint(refValue.Convert(uintType).Interface().(uint16)), true
case reflect.Uint32:
uintType := reflect.TypeOf(uint32(0))
return Uint(refValue.Convert(uintType).Interface().(uint32)), true
@@ -444,6 +637,9 @@ func nativeToValue(a ref.TypeAdapter, value any) (ref.Val, bool) {
case reflect.Float64:
doubleType := reflect.TypeOf(float64(0))
return Double(refValue.Convert(doubleType).Interface().(float64)), true
+ case reflect.String:
+ stringType := reflect.TypeOf("")
+ return String(refValue.Convert(stringType).Interface().(string)), true
}
}
return nil, false
@@ -547,3 +743,24 @@ func fieldTypeConversionError(field *pb.FieldDescription, err error) error {
msgName := field.Descriptor().ContainingMessage().FullName()
return fmt.Errorf("field type conversion error for %v.%v value type: %v", msgName, field.Name(), err)
}
+
+var (
+ // ProtoCELPrimitives provides a map from the protoreflect Kind to the equivalent CEL type.
+ ProtoCELPrimitives = map[protoreflect.Kind]*Type{
+ protoreflect.BoolKind: BoolType,
+ protoreflect.BytesKind: BytesType,
+ protoreflect.DoubleKind: DoubleType,
+ protoreflect.FloatKind: DoubleType,
+ protoreflect.Int32Kind: IntType,
+ protoreflect.Int64Kind: IntType,
+ protoreflect.Sint32Kind: IntType,
+ protoreflect.Sint64Kind: IntType,
+ protoreflect.Uint32Kind: UintType,
+ protoreflect.Uint64Kind: UintType,
+ protoreflect.Fixed32Kind: UintType,
+ protoreflect.Fixed64Kind: UintType,
+ protoreflect.Sfixed32Kind: IntType,
+ protoreflect.Sfixed64Kind: IntType,
+ protoreflect.StringKind: StringType,
+ }
+)
diff --git a/vendor/github.com/google/cel-go/common/types/ref/BUILD.bazel b/vendor/github.com/google/cel-go/common/types/ref/BUILD.bazel
index 1d0f468..79330c3 100644
--- a/vendor/github.com/google/cel-go/common/types/ref/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/common/types/ref/BUILD.bazel
@@ -13,7 +13,7 @@ go_library(
],
importpath = "github.com/google/cel-go/common/types/ref",
deps = [
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//reflect/protoreflect:go_default_library",
],
diff --git a/vendor/github.com/google/cel-go/common/types/ref/provider.go b/vendor/github.com/google/cel-go/common/types/ref/provider.go
index 7eabbb9..b982002 100644
--- a/vendor/github.com/google/cel-go/common/types/ref/provider.go
+++ b/vendor/github.com/google/cel-go/common/types/ref/provider.go
@@ -23,34 +23,34 @@ import (
// TypeProvider specifies functions for creating new object instances and for
// resolving enum values by name.
+//
+// Deprecated: use types.Provider
type TypeProvider interface {
// EnumValue returns the numeric value of the given enum value name.
EnumValue(enumName string) Val
- // FindIdent takes a qualified identifier name and returns a Value if one
- // exists.
+ // FindIdent takes a qualified identifier name and returns a Value if one exists.
FindIdent(identName string) (Val, bool)
- // FindType looks up the Type given a qualified typeName. Returns false
- // if not found.
- //
- // Used during type-checking only.
+ // FindType looks up the Type given a qualified typeName. Returns false if not found.
FindType(typeName string) (*exprpb.Type, bool)
- // FieldFieldType returns the field type for a checked type value. Returns
- // false if the field could not be found.
- FindFieldType(messageType string, fieldName string) (*FieldType, bool)
+ // FieldFieldType returns the field type for a checked type value. Returns false if
+ // the field could not be found.
+ FindFieldType(messageType, fieldName string) (*FieldType, bool)
- // NewValue creates a new type value from a qualified name and map of field
- // name to value.
+ // NewValue creates a new type value from a qualified name and map of field name
+ // to value.
//
- // Note, for each value, the Val.ConvertToNative function will be invoked
- // to convert the Val to the field's native type. If an error occurs during
- // conversion, the NewValue will be a types.Err.
+ // Note, for each value, the Val.ConvertToNative function will be invoked to convert
+ // the Val to the field's native type. If an error occurs during conversion, the
+ // NewValue will be a types.Err.
NewValue(typeName string, fields map[string]Val) Val
}
// TypeAdapter converts native Go values of varying type and complexity to equivalent CEL values.
+//
+// Deprecated: use types.Adapter
type TypeAdapter interface {
// NativeToValue converts the input `value` to a CEL `ref.Val`.
NativeToValue(value any) Val
@@ -60,6 +60,8 @@ type TypeAdapter interface {
// implementations support type-customization, so these features are optional. However, a
// `TypeRegistry` should be a `TypeProvider` and a `TypeAdapter` to ensure that types
// which are registered can be converted to CEL representations.
+//
+// Deprecated: use types.Registry
type TypeRegistry interface {
TypeAdapter
TypeProvider
@@ -76,15 +78,14 @@ type TypeRegistry interface {
// If a type is provided more than once with an alternative definition, the
// call will result in an error.
RegisterType(types ...Type) error
-
- // Copy the TypeRegistry and return a new registry whose mutable state is isolated.
- Copy() TypeRegistry
}
// FieldType represents a field's type value and whether that field supports
// presence detection.
+//
+// Deprecated: use types.FieldType
type FieldType struct {
- // Type of the field.
+ // Type of the field as a protobuf type value.
Type *exprpb.Type
// IsSet indicates whether the field is set on an input object.
diff --git a/vendor/github.com/google/cel-go/common/types/string.go b/vendor/github.com/google/cel-go/common/types/string.go
index a65cc14..3a93743 100644
--- a/vendor/github.com/google/cel-go/common/types/string.go
+++ b/vendor/github.com/google/cel-go/common/types/string.go
@@ -24,7 +24,6 @@ import (
"github.com/google/cel-go/common/overloads"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
anypb "google.golang.org/protobuf/types/known/anypb"
structpb "google.golang.org/protobuf/types/known/structpb"
@@ -36,18 +35,10 @@ import (
type String string
var (
- // StringType singleton.
- StringType = NewTypeValue("string",
- traits.AdderType,
- traits.ComparerType,
- traits.MatcherType,
- traits.ReceiverType,
- traits.SizerType)
-
- stringOneArgOverloads = map[string]func(String, ref.Val) ref.Val{
- overloads.Contains: stringContains,
- overloads.EndsWith: stringEndsWith,
- overloads.StartsWith: stringStartsWith,
+ stringOneArgOverloads = map[string]func(ref.Val, ref.Val) ref.Val{
+ overloads.Contains: StringContains,
+ overloads.EndsWith: StringEndsWith,
+ overloads.StartsWith: StringStartsWith,
}
stringWrapperType = reflect.TypeOf(&wrapperspb.StringValue{})
@@ -75,10 +66,7 @@ func (s String) Compare(other ref.Val) ref.Val {
func (s String) ConvertToNative(typeDesc reflect.Type) (any, error) {
switch typeDesc.Kind() {
case reflect.String:
- if reflect.TypeOf(s).AssignableTo(typeDesc) {
- return s, nil
- }
- return s.Value(), nil
+ return reflect.ValueOf(s).Convert(typeDesc).Interface(), nil
case reflect.Ptr:
switch typeDesc {
case anyValueType:
@@ -167,7 +155,7 @@ func (s String) Match(pattern ref.Val) ref.Val {
}
matched, err := regexp.MatchString(pat.Value().(string), s.Value().(string))
if err != nil {
- return &Err{err}
+ return &Err{error: err}
}
return Bool(matched)
}
@@ -198,26 +186,41 @@ func (s String) Value() any {
return string(s)
}
-func stringContains(s String, sub ref.Val) ref.Val {
+// StringContains returns whether the string contains a substring.
+func StringContains(s, sub ref.Val) ref.Val {
+ str, ok := s.(String)
+ if !ok {
+ return MaybeNoSuchOverloadErr(s)
+ }
subStr, ok := sub.(String)
if !ok {
return MaybeNoSuchOverloadErr(sub)
}
- return Bool(strings.Contains(string(s), string(subStr)))
+ return Bool(strings.Contains(string(str), string(subStr)))
}
-func stringEndsWith(s String, suf ref.Val) ref.Val {
+// StringEndsWith returns whether the target string contains the input suffix.
+func StringEndsWith(s, suf ref.Val) ref.Val {
+ str, ok := s.(String)
+ if !ok {
+ return MaybeNoSuchOverloadErr(s)
+ }
sufStr, ok := suf.(String)
if !ok {
return MaybeNoSuchOverloadErr(suf)
}
- return Bool(strings.HasSuffix(string(s), string(sufStr)))
+ return Bool(strings.HasSuffix(string(str), string(sufStr)))
}
-func stringStartsWith(s String, pre ref.Val) ref.Val {
+// StringStartsWith returns whether the target string contains the input prefix.
+func StringStartsWith(s, pre ref.Val) ref.Val {
+ str, ok := s.(String)
+ if !ok {
+ return MaybeNoSuchOverloadErr(s)
+ }
preStr, ok := pre.(String)
if !ok {
return MaybeNoSuchOverloadErr(pre)
}
- return Bool(strings.HasPrefix(string(s), string(preStr)))
+ return Bool(strings.HasPrefix(string(str), string(preStr)))
}
diff --git a/vendor/github.com/google/cel-go/common/types/timestamp.go b/vendor/github.com/google/cel-go/common/types/timestamp.go
index c784f2e..33acdea 100644
--- a/vendor/github.com/google/cel-go/common/types/timestamp.go
+++ b/vendor/github.com/google/cel-go/common/types/timestamp.go
@@ -23,7 +23,6 @@ import (
"github.com/google/cel-go/common/overloads"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
anypb "google.golang.org/protobuf/types/known/anypb"
structpb "google.golang.org/protobuf/types/known/structpb"
@@ -53,15 +52,6 @@ const (
maxUnixTime int64 = 253402300799
)
-var (
- // TimestampType singleton.
- TimestampType = NewTypeValue("google.protobuf.Timestamp",
- traits.AdderType,
- traits.ComparerType,
- traits.ReceiverType,
- traits.SubtractorType)
-)
-
// Add implements traits.Adder.Add.
func (t Timestamp) Add(other ref.Val) ref.Val {
switch other.Type() {
diff --git a/vendor/github.com/google/cel-go/common/types/traits/iterator.go b/vendor/github.com/google/cel-go/common/types/traits/iterator.go
index 42dd371..91c10f0 100644
--- a/vendor/github.com/google/cel-go/common/types/traits/iterator.go
+++ b/vendor/github.com/google/cel-go/common/types/traits/iterator.go
@@ -34,3 +34,16 @@ type Iterator interface {
// Next returns the next element.
Next() ref.Val
}
+
+// Foldable aggregate types support iteration over (key, value) or (index, value) pairs.
+type Foldable interface {
+ // Fold invokes the Folder.FoldEntry for all entries in the type
+ Fold(Folder)
+}
+
+// Folder performs a fold on a given entry and indicates whether to continue folding.
+type Folder interface {
+ // FoldEntry indicates the key, value pair associated with the entry.
+ // If the output is true, continue folding. Otherwise, terminate the fold.
+ FoldEntry(key, val any) bool
+}
diff --git a/vendor/github.com/google/cel-go/common/types/traits/lister.go b/vendor/github.com/google/cel-go/common/types/traits/lister.go
index 5cf2593..e54781a 100644
--- a/vendor/github.com/google/cel-go/common/types/traits/lister.go
+++ b/vendor/github.com/google/cel-go/common/types/traits/lister.go
@@ -27,6 +27,9 @@ type Lister interface {
}
// MutableLister interface which emits an immutable result after an intermediate computation.
+//
+// Note, this interface is intended only to be used within Comprehensions where the mutable
+// value is not directly observable within the user-authored CEL expression.
type MutableLister interface {
Lister
ToImmutableList() Lister
diff --git a/vendor/github.com/google/cel-go/common/types/traits/mapper.go b/vendor/github.com/google/cel-go/common/types/traits/mapper.go
index 2f7c919..d13333f 100644
--- a/vendor/github.com/google/cel-go/common/types/traits/mapper.go
+++ b/vendor/github.com/google/cel-go/common/types/traits/mapper.go
@@ -31,3 +31,18 @@ type Mapper interface {
// (Unknown|Err, false).
Find(key ref.Val) (ref.Val, bool)
}
+
+// MutableMapper interface which emits an immutable result after an intermediate computation.
+//
+// Note, this interface is intended only to be used within Comprehensions where the mutable
+// value is not directly observable within the user-authored CEL expression.
+type MutableMapper interface {
+ Mapper
+
+ // Insert a key, value pair into the map, returning the map if the insert is successful
+ // and an error if key already exists in the mutable map.
+ Insert(k, v ref.Val) ref.Val
+
+ // ToImmutableMap converts a mutable map into an immutable map.
+ ToImmutableMap() Mapper
+}
diff --git a/vendor/github.com/google/cel-go/common/types/traits/traits.go b/vendor/github.com/google/cel-go/common/types/traits/traits.go
index 6da3e6a..51a09df 100644
--- a/vendor/github.com/google/cel-go/common/types/traits/traits.go
+++ b/vendor/github.com/google/cel-go/common/types/traits/traits.go
@@ -59,6 +59,21 @@ const (
// SizerType types support the size() method.
SizerType
- // SubtractorType type support '-' operations.
+ // SubtractorType types support '-' operations.
SubtractorType
+
+ // FoldableType types support comprehensions v2 macros which iterate over (key, value) pairs.
+ FoldableType
+)
+
+const (
+ // ListerType supports a set of traits necessary for list operations.
+ //
+ // The ListerType is syntactic sugar and not intended to be a perfect reflection of all List operators.
+ ListerType = AdderType | ContainerType | IndexerType | IterableType | SizerType
+
+ // MapperType supports a set of traits necessary for map operations.
+ //
+ // The MapperType is syntactic sugar and not intended to be a perfect reflection of all Map operators.
+ MapperType = ContainerType | IndexerType | IterableType | SizerType
)
diff --git a/vendor/github.com/google/cel-go/common/types/type.go b/vendor/github.com/google/cel-go/common/types/type.go
deleted file mode 100644
index 164a460..0000000
--- a/vendor/github.com/google/cel-go/common/types/type.go
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package types
-
-import (
- "fmt"
- "reflect"
-
- "github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
-)
-
-var (
- // TypeType is the type of a TypeValue.
- TypeType = NewTypeValue("type")
-)
-
-// TypeValue is an instance of a Value that describes a value's type.
-type TypeValue struct {
- name string
- traitMask int
-}
-
-// NewTypeValue returns *TypeValue which is both a ref.Type and ref.Val.
-func NewTypeValue(name string, traits ...int) *TypeValue {
- traitMask := 0
- for _, trait := range traits {
- traitMask |= trait
- }
- return &TypeValue{
- name: name,
- traitMask: traitMask}
-}
-
-// NewObjectTypeValue returns a *TypeValue based on the input name, which is
-// annotated with the traits relevant to all objects.
-func NewObjectTypeValue(name string) *TypeValue {
- return NewTypeValue(name,
- traits.FieldTesterType,
- traits.IndexerType)
-}
-
-// ConvertToNative implements ref.Val.ConvertToNative.
-func (t *TypeValue) ConvertToNative(typeDesc reflect.Type) (any, error) {
- // TODO: replace the internal type representation with a proto-value.
- return nil, fmt.Errorf("type conversion not supported for 'type'")
-}
-
-// ConvertToType implements ref.Val.ConvertToType.
-func (t *TypeValue) ConvertToType(typeVal ref.Type) ref.Val {
- switch typeVal {
- case TypeType:
- return TypeType
- case StringType:
- return String(t.TypeName())
- }
- return NewErr("type conversion error from '%s' to '%s'", TypeType, typeVal)
-}
-
-// Equal implements ref.Val.Equal.
-func (t *TypeValue) Equal(other ref.Val) ref.Val {
- otherType, ok := other.(ref.Type)
- return Bool(ok && t.TypeName() == otherType.TypeName())
-}
-
-// HasTrait indicates whether the type supports the given trait.
-// Trait codes are defined in the traits package, e.g. see traits.AdderType.
-func (t *TypeValue) HasTrait(trait int) bool {
- return trait&t.traitMask == trait
-}
-
-// String implements fmt.Stringer.
-func (t *TypeValue) String() string {
- return t.name
-}
-
-// Type implements ref.Val.Type.
-func (t *TypeValue) Type() ref.Type {
- return TypeType
-}
-
-// TypeName gives the type's name as a string.
-func (t *TypeValue) TypeName() string {
- return t.name
-}
-
-// Value implements ref.Val.Value.
-func (t *TypeValue) Value() any {
- return t.name
-}
diff --git a/vendor/github.com/google/cel-go/common/types/types.go b/vendor/github.com/google/cel-go/common/types/types.go
new file mode 100644
index 0000000..1c5b6c4
--- /dev/null
+++ b/vendor/github.com/google/cel-go/common/types/types.go
@@ -0,0 +1,864 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package types
+
+import (
+ "fmt"
+ "reflect"
+ "strings"
+
+ "google.golang.org/protobuf/proto"
+
+ chkdecls "github.com/google/cel-go/checker/decls"
+ "github.com/google/cel-go/common/types/ref"
+ "github.com/google/cel-go/common/types/traits"
+
+ celpb "cel.dev/expr"
+ exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+)
+
+// Kind indicates a CEL type's kind which is used to differentiate quickly between simple
+// and complex types.
+type Kind uint
+
+const (
+ // UnspecifiedKind is returned when the type is nil or its kind is not specified.
+ UnspecifiedKind Kind = iota
+
+ // DynKind represents a dynamic type. This kind only exists at type-check time.
+ DynKind
+
+ // AnyKind represents a google.protobuf.Any type. This kind only exists at type-check time.
+ // Prefer DynKind to AnyKind as AnyKind has a specific meaning which is based on protobuf
+ // well-known types.
+ AnyKind
+
+ // BoolKind represents a boolean type.
+ BoolKind
+
+ // BytesKind represents a bytes type.
+ BytesKind
+
+ // DoubleKind represents a double type.
+ DoubleKind
+
+ // DurationKind represents a CEL duration type.
+ DurationKind
+
+ // ErrorKind represents a CEL error type.
+ ErrorKind
+
+ // IntKind represents an integer type.
+ IntKind
+
+ // ListKind represents a list type.
+ ListKind
+
+ // MapKind represents a map type.
+ MapKind
+
+ // NullTypeKind represents a null type.
+ NullTypeKind
+
+ // OpaqueKind represents an abstract type which has no accessible fields.
+ OpaqueKind
+
+ // StringKind represents a string type.
+ StringKind
+
+ // StructKind represents a structured object with typed fields.
+ StructKind
+
+ // TimestampKind represents a a CEL time type.
+ TimestampKind
+
+ // TypeKind represents the CEL type.
+ TypeKind
+
+ // TypeParamKind represents a parameterized type whose type name will be resolved at type-check time, if possible.
+ TypeParamKind
+
+ // UintKind represents a uint type.
+ UintKind
+
+ // UnknownKind represents an unknown value type.
+ UnknownKind
+)
+
+var (
+ // AnyType represents the google.protobuf.Any type.
+ AnyType = &Type{
+ kind: AnyKind,
+ runtimeTypeName: "google.protobuf.Any",
+ traitMask: traits.FieldTesterType |
+ traits.IndexerType,
+ }
+ // BoolType represents the bool type.
+ BoolType = &Type{
+ kind: BoolKind,
+ runtimeTypeName: "bool",
+ traitMask: traits.ComparerType |
+ traits.NegatorType,
+ }
+ // BytesType represents the bytes type.
+ BytesType = &Type{
+ kind: BytesKind,
+ runtimeTypeName: "bytes",
+ traitMask: traits.AdderType |
+ traits.ComparerType |
+ traits.SizerType,
+ }
+ // DoubleType represents the double type.
+ DoubleType = &Type{
+ kind: DoubleKind,
+ runtimeTypeName: "double",
+ traitMask: traits.AdderType |
+ traits.ComparerType |
+ traits.DividerType |
+ traits.MultiplierType |
+ traits.NegatorType |
+ traits.SubtractorType,
+ }
+ // DurationType represents the CEL duration type.
+ DurationType = &Type{
+ kind: DurationKind,
+ runtimeTypeName: "google.protobuf.Duration",
+ traitMask: traits.AdderType |
+ traits.ComparerType |
+ traits.NegatorType |
+ traits.ReceiverType |
+ traits.SubtractorType,
+ }
+ // DynType represents a dynamic CEL type whose type will be determined at runtime from context.
+ DynType = &Type{
+ kind: DynKind,
+ runtimeTypeName: "dyn",
+ }
+ // ErrorType represents a CEL error value.
+ ErrorType = &Type{
+ kind: ErrorKind,
+ runtimeTypeName: "error",
+ }
+ // IntType represents the int type.
+ IntType = &Type{
+ kind: IntKind,
+ runtimeTypeName: "int",
+ traitMask: traits.AdderType |
+ traits.ComparerType |
+ traits.DividerType |
+ traits.ModderType |
+ traits.MultiplierType |
+ traits.NegatorType |
+ traits.SubtractorType,
+ }
+ // ListType represents the runtime list type.
+ ListType = NewListType(nil)
+ // MapType represents the runtime map type.
+ MapType = NewMapType(nil, nil)
+ // NullType represents the type of a null value.
+ NullType = &Type{
+ kind: NullTypeKind,
+ runtimeTypeName: "null_type",
+ }
+ // StringType represents the string type.
+ StringType = &Type{
+ kind: StringKind,
+ runtimeTypeName: "string",
+ traitMask: traits.AdderType |
+ traits.ComparerType |
+ traits.MatcherType |
+ traits.ReceiverType |
+ traits.SizerType,
+ }
+ // TimestampType represents the time type.
+ TimestampType = &Type{
+ kind: TimestampKind,
+ runtimeTypeName: "google.protobuf.Timestamp",
+ traitMask: traits.AdderType |
+ traits.ComparerType |
+ traits.ReceiverType |
+ traits.SubtractorType,
+ }
+ // TypeType represents a CEL type
+ TypeType = &Type{
+ kind: TypeKind,
+ runtimeTypeName: "type",
+ }
+ // UintType represents a uint type.
+ UintType = &Type{
+ kind: UintKind,
+ runtimeTypeName: "uint",
+ traitMask: traits.AdderType |
+ traits.ComparerType |
+ traits.DividerType |
+ traits.ModderType |
+ traits.MultiplierType |
+ traits.SubtractorType,
+ }
+ // UnknownType represents an unknown value type.
+ UnknownType = &Type{
+ kind: UnknownKind,
+ runtimeTypeName: "unknown",
+ }
+)
+
+var _ ref.Type = &Type{}
+var _ ref.Val = &Type{}
+
+// Type holds a reference to a runtime type with an optional type-checked set of type parameters.
+type Type struct {
+ // kind indicates general category of the type.
+ kind Kind
+
+ // parameters holds the optional type-checked set of type Parameters that are used during static analysis.
+ parameters []*Type
+
+ // runtimeTypeName indicates the runtime type name of the type.
+ runtimeTypeName string
+
+ // isAssignableType function determines whether one type is assignable to this type.
+ // A nil value for the isAssignableType function falls back to equality of kind, runtimeType, and parameters.
+ isAssignableType func(other *Type) bool
+
+ // isAssignableRuntimeType function determines whether the runtime type (with erasure) is assignable to this type.
+ // A nil value for the isAssignableRuntimeType function falls back to the equality of the type or type name.
+ isAssignableRuntimeType func(other ref.Val) bool
+
+ // traitMask is a mask of flags which indicate the capabilities of the type.
+ traitMask int
+}
+
+// ConvertToNative implements ref.Val.ConvertToNative.
+func (t *Type) ConvertToNative(typeDesc reflect.Type) (any, error) {
+ return nil, fmt.Errorf("type conversion not supported for 'type'")
+}
+
+// ConvertToType implements ref.Val.ConvertToType.
+func (t *Type) ConvertToType(typeVal ref.Type) ref.Val {
+ switch typeVal {
+ case TypeType:
+ return TypeType
+ case StringType:
+ return String(t.TypeName())
+ }
+ return NewErr("type conversion error from '%s' to '%s'", TypeType, typeVal)
+}
+
+// Equal indicates whether two types have the same runtime type name.
+//
+// The name Equal is a bit of a misnomer, but for historical reasons, this is the
+// runtime behavior. For a more accurate definition see IsType().
+func (t *Type) Equal(other ref.Val) ref.Val {
+ otherType, ok := other.(ref.Type)
+ return Bool(ok && t.TypeName() == otherType.TypeName())
+}
+
+// HasTrait implements the ref.Type interface method.
+func (t *Type) HasTrait(trait int) bool {
+ return trait&t.traitMask == trait
+}
+
+// IsExactType indicates whether the two types are exactly the same. This check also verifies type parameter type names.
+func (t *Type) IsExactType(other *Type) bool {
+ return t.isTypeInternal(other, true)
+}
+
+// IsEquivalentType indicates whether two types are equivalent. This check ignores type parameter type names.
+func (t *Type) IsEquivalentType(other *Type) bool {
+ return t.isTypeInternal(other, false)
+}
+
+// Kind indicates general category of the type.
+func (t *Type) Kind() Kind {
+ if t == nil {
+ return UnspecifiedKind
+ }
+ return t.kind
+}
+
+// isTypeInternal checks whether the two types are equivalent or exactly the same based on the checkTypeParamName flag.
+func (t *Type) isTypeInternal(other *Type, checkTypeParamName bool) bool {
+ if t == nil {
+ return false
+ }
+ if t == other {
+ return true
+ }
+ if t.Kind() != other.Kind() || len(t.Parameters()) != len(other.Parameters()) {
+ return false
+ }
+ if (checkTypeParamName || t.Kind() != TypeParamKind) && t.TypeName() != other.TypeName() {
+ return false
+ }
+ for i, p := range t.Parameters() {
+ if !p.isTypeInternal(other.Parameters()[i], checkTypeParamName) {
+ return false
+ }
+ }
+ return true
+}
+
+// IsAssignableType determines whether the current type is type-check assignable from the input fromType.
+func (t *Type) IsAssignableType(fromType *Type) bool {
+ if t == nil {
+ return false
+ }
+ if t.isAssignableType != nil {
+ return t.isAssignableType(fromType)
+ }
+ return t.defaultIsAssignableType(fromType)
+}
+
+// IsAssignableRuntimeType determines whether the current type is runtime assignable from the input runtimeType.
+//
+// At runtime, parameterized types are erased and so a function which type-checks to support a map(string, string)
+// will have a runtime assignable type of a map.
+func (t *Type) IsAssignableRuntimeType(val ref.Val) bool {
+ if t == nil {
+ return false
+ }
+ if t.isAssignableRuntimeType != nil {
+ return t.isAssignableRuntimeType(val)
+ }
+ return t.defaultIsAssignableRuntimeType(val)
+}
+
+// Parameters returns the list of type parameters if set.
+//
+// For ListKind, Parameters()[0] represents the list element type
+// For MapKind, Parameters()[0] represents the map key type, and Parameters()[1] represents the map
+// value type.
+func (t *Type) Parameters() []*Type {
+ if t == nil {
+ return emptyParams
+ }
+ return t.parameters
+}
+
+// DeclaredTypeName indicates the fully qualified and parameterized type-check type name.
+func (t *Type) DeclaredTypeName() string {
+ // if the type itself is neither null, nor dyn, but is assignable to null, then it's a wrapper type.
+ if t.Kind() != NullTypeKind && !t.isDyn() && t.IsAssignableType(NullType) {
+ return fmt.Sprintf("wrapper(%s)", t.TypeName())
+ }
+ return t.TypeName()
+}
+
+// Type implements the ref.Val interface method.
+func (t *Type) Type() ref.Type {
+ return TypeType
+}
+
+// Value implements the ref.Val interface method.
+func (t *Type) Value() any {
+ return t.TypeName()
+}
+
+// TypeName returns the type-erased fully qualified runtime type name.
+//
+// TypeName implements the ref.Type interface method.
+func (t *Type) TypeName() string {
+ if t == nil {
+ return ""
+ }
+ return t.runtimeTypeName
+}
+
+// WithTraits creates a copy of the current Type and sets the trait mask to the traits parameter.
+//
+// This method should be used with Opaque types where the type acts like a container, e.g. vector.
+func (t *Type) WithTraits(traits int) *Type {
+ if t == nil {
+ return nil
+ }
+ return &Type{
+ kind: t.kind,
+ parameters: t.parameters,
+ runtimeTypeName: t.runtimeTypeName,
+ isAssignableType: t.isAssignableType,
+ isAssignableRuntimeType: t.isAssignableRuntimeType,
+ traitMask: traits,
+ }
+}
+
+// String returns a human-readable definition of the type name.
+func (t *Type) String() string {
+ if len(t.Parameters()) == 0 {
+ return t.DeclaredTypeName()
+ }
+ params := make([]string, len(t.Parameters()))
+ for i, p := range t.Parameters() {
+ params[i] = p.String()
+ }
+ return fmt.Sprintf("%s(%s)", t.DeclaredTypeName(), strings.Join(params, ", "))
+}
+
+// isDyn indicates whether the type is dynamic in any way.
+func (t *Type) isDyn() bool {
+ k := t.Kind()
+ return k == DynKind || k == AnyKind || k == TypeParamKind
+}
+
+// defaultIsAssignableType provides the standard definition of what it means for one type to be assignable to another
+// where any of the following may return a true result:
+// - The from types are the same instance
+// - The target type is dynamic
+// - The fromType has the same kind and type name as the target type, and all parameters of the target type
+//
+// are IsAssignableType() from the parameters of the fromType.
+func (t *Type) defaultIsAssignableType(fromType *Type) bool {
+ if t == fromType || t.isDyn() {
+ return true
+ }
+ if t.Kind() != fromType.Kind() ||
+ t.TypeName() != fromType.TypeName() ||
+ len(t.Parameters()) != len(fromType.Parameters()) {
+ return false
+ }
+ for i, tp := range t.Parameters() {
+ fp := fromType.Parameters()[i]
+ if !tp.IsAssignableType(fp) {
+ return false
+ }
+ }
+ return true
+}
+
+// defaultIsAssignableRuntimeType inspects the type and in the case of list and map elements, the key and element types
+// to determine whether a ref.Val is assignable to the declared type for a function signature.
+func (t *Type) defaultIsAssignableRuntimeType(val ref.Val) bool {
+ valType := val.Type()
+ // If the current type and value type don't agree, then return
+ if !(t.isDyn() || t.TypeName() == valType.TypeName()) {
+ return false
+ }
+ switch t.Kind() {
+ case ListKind:
+ elemType := t.Parameters()[0]
+ l := val.(traits.Lister)
+ if l.Size() == IntZero {
+ return true
+ }
+ it := l.Iterator()
+ elemVal := it.Next()
+ return elemType.IsAssignableRuntimeType(elemVal)
+ case MapKind:
+ keyType := t.Parameters()[0]
+ elemType := t.Parameters()[1]
+ m := val.(traits.Mapper)
+ if m.Size() == IntZero {
+ return true
+ }
+ it := m.Iterator()
+ keyVal := it.Next()
+ elemVal := m.Get(keyVal)
+ return keyType.IsAssignableRuntimeType(keyVal) && elemType.IsAssignableRuntimeType(elemVal)
+ }
+ return true
+}
+
+// NewListType creates an instances of a list type value with the provided element type.
+func NewListType(elemType *Type) *Type {
+ return &Type{
+ kind: ListKind,
+ parameters: []*Type{elemType},
+ runtimeTypeName: "list",
+ traitMask: traits.AdderType |
+ traits.ContainerType |
+ traits.IndexerType |
+ traits.IterableType |
+ traits.SizerType,
+ }
+}
+
+// NewMapType creates an instance of a map type value with the provided key and value types.
+func NewMapType(keyType, valueType *Type) *Type {
+ return &Type{
+ kind: MapKind,
+ parameters: []*Type{keyType, valueType},
+ runtimeTypeName: "map",
+ traitMask: traits.ContainerType |
+ traits.IndexerType |
+ traits.IterableType |
+ traits.SizerType,
+ }
+}
+
+// NewNullableType creates an instance of a nullable type with the provided wrapped type.
+//
+// Note: only primitive types are supported as wrapped types.
+func NewNullableType(wrapped *Type) *Type {
+ return &Type{
+ kind: wrapped.Kind(),
+ parameters: wrapped.Parameters(),
+ runtimeTypeName: wrapped.TypeName(),
+ traitMask: wrapped.traitMask,
+ isAssignableType: func(other *Type) bool {
+ return NullType.IsAssignableType(other) || wrapped.IsAssignableType(other)
+ },
+ isAssignableRuntimeType: func(other ref.Val) bool {
+ return NullType.IsAssignableRuntimeType(other) || wrapped.IsAssignableRuntimeType(other)
+ },
+ }
+}
+
+// NewOptionalType creates an abstract parameterized type instance corresponding to CEL's notion of optional.
+func NewOptionalType(param *Type) *Type {
+ return NewOpaqueType("optional_type", param)
+}
+
+// NewOpaqueType creates an abstract parameterized type with a given name.
+func NewOpaqueType(name string, params ...*Type) *Type {
+ return &Type{
+ kind: OpaqueKind,
+ parameters: params,
+ runtimeTypeName: name,
+ }
+}
+
+// NewObjectType creates a type reference to an externally defined type, e.g. a protobuf message type.
+//
+// An object type is assumed to support field presence testing and field indexing. Additionally, the
+// type may also indicate additional traits through the use of the optional traits vararg argument.
+func NewObjectType(typeName string, traits ...int) *Type {
+ // Function sanitizes object types on the fly
+ if wkt, found := checkedWellKnowns[typeName]; found {
+ return wkt
+ }
+ traitMask := 0
+ for _, trait := range traits {
+ traitMask |= trait
+ }
+ return &Type{
+ kind: StructKind,
+ parameters: emptyParams,
+ runtimeTypeName: typeName,
+ traitMask: structTypeTraitMask | traitMask,
+ }
+}
+
+// NewObjectTypeValue creates a type reference to an externally defined type.
+//
+// Deprecated: use cel.ObjectType(typeName)
+func NewObjectTypeValue(typeName string) *Type {
+ return NewObjectType(typeName)
+}
+
+// NewTypeValue creates an opaque type which has a set of optional type traits as defined in
+// the common/types/traits package.
+//
+// Deprecated: use cel.ObjectType(typeName, traits)
+func NewTypeValue(typeName string, traits ...int) *Type {
+ traitMask := 0
+ for _, trait := range traits {
+ traitMask |= trait
+ }
+ return &Type{
+ kind: StructKind,
+ parameters: emptyParams,
+ runtimeTypeName: typeName,
+ traitMask: traitMask,
+ }
+}
+
+// NewTypeParamType creates a parameterized type instance.
+func NewTypeParamType(paramName string) *Type {
+ return &Type{
+ kind: TypeParamKind,
+ runtimeTypeName: paramName,
+ }
+}
+
+// NewTypeTypeWithParam creates a type with a type parameter.
+// Used for type-checking purposes, but equivalent to TypeType otherwise.
+func NewTypeTypeWithParam(param *Type) *Type {
+ return &Type{
+ kind: TypeKind,
+ runtimeTypeName: "type",
+ parameters: []*Type{param},
+ }
+}
+
+// TypeToExprType converts a CEL-native type representation to a protobuf CEL Type representation.
+func TypeToExprType(t *Type) (*exprpb.Type, error) {
+ switch t.Kind() {
+ case AnyKind:
+ return chkdecls.Any, nil
+ case BoolKind:
+ return maybeWrapper(t, chkdecls.Bool), nil
+ case BytesKind:
+ return maybeWrapper(t, chkdecls.Bytes), nil
+ case DoubleKind:
+ return maybeWrapper(t, chkdecls.Double), nil
+ case DurationKind:
+ return chkdecls.Duration, nil
+ case DynKind:
+ return chkdecls.Dyn, nil
+ case ErrorKind:
+ return chkdecls.Error, nil
+ case IntKind:
+ return maybeWrapper(t, chkdecls.Int), nil
+ case ListKind:
+ if len(t.Parameters()) != 1 {
+ return nil, fmt.Errorf("invalid list, got %d parameters, wanted one", len(t.Parameters()))
+ }
+ et, err := TypeToExprType(t.Parameters()[0])
+ if err != nil {
+ return nil, err
+ }
+ return chkdecls.NewListType(et), nil
+ case MapKind:
+ if len(t.Parameters()) != 2 {
+ return nil, fmt.Errorf("invalid map, got %d parameters, wanted two", len(t.Parameters()))
+ }
+ kt, err := TypeToExprType(t.Parameters()[0])
+ if err != nil {
+ return nil, err
+ }
+ vt, err := TypeToExprType(t.Parameters()[1])
+ if err != nil {
+ return nil, err
+ }
+ return chkdecls.NewMapType(kt, vt), nil
+ case NullTypeKind:
+ return chkdecls.Null, nil
+ case OpaqueKind:
+ params := make([]*exprpb.Type, len(t.Parameters()))
+ for i, p := range t.Parameters() {
+ pt, err := TypeToExprType(p)
+ if err != nil {
+ return nil, err
+ }
+ params[i] = pt
+ }
+ return chkdecls.NewAbstractType(t.TypeName(), params...), nil
+ case StringKind:
+ return maybeWrapper(t, chkdecls.String), nil
+ case StructKind:
+ return chkdecls.NewObjectType(t.TypeName()), nil
+ case TimestampKind:
+ return chkdecls.Timestamp, nil
+ case TypeParamKind:
+ return chkdecls.NewTypeParamType(t.TypeName()), nil
+ case TypeKind:
+ if len(t.Parameters()) == 1 {
+ p, err := TypeToExprType(t.Parameters()[0])
+ if err != nil {
+ return nil, err
+ }
+ return chkdecls.NewTypeType(p), nil
+ }
+ return chkdecls.NewTypeType(nil), nil
+ case UintKind:
+ return maybeWrapper(t, chkdecls.Uint), nil
+ }
+ return nil, fmt.Errorf("missing type conversion to proto: %v", t)
+}
+
+// ExprTypeToType converts a protobuf CEL type representation to a CEL-native type representation.
+func ExprTypeToType(t *exprpb.Type) (*Type, error) {
+ return AlphaProtoAsType(t)
+}
+
+// AlphaProtoAsType converts a CEL v1alpha1.Type protobuf type to a CEL-native type representation.
+func AlphaProtoAsType(t *exprpb.Type) (*Type, error) {
+ canonical := &celpb.Type{}
+ if err := convertProto(t, canonical); err != nil {
+ return nil, err
+ }
+ return ProtoAsType(canonical)
+}
+
+// ProtoAsType converts a canonical CEL celpb.Type protobuf type to a CEL-native type representation.
+func ProtoAsType(t *celpb.Type) (*Type, error) {
+ switch t.GetTypeKind().(type) {
+ case *celpb.Type_Dyn:
+ return DynType, nil
+ case *celpb.Type_AbstractType_:
+ paramTypes := make([]*Type, len(t.GetAbstractType().GetParameterTypes()))
+ for i, p := range t.GetAbstractType().GetParameterTypes() {
+ pt, err := ProtoAsType(p)
+ if err != nil {
+ return nil, err
+ }
+ paramTypes[i] = pt
+ }
+ return NewOpaqueType(t.GetAbstractType().GetName(), paramTypes...), nil
+ case *celpb.Type_ListType_:
+ et, err := ProtoAsType(t.GetListType().GetElemType())
+ if err != nil {
+ return nil, err
+ }
+ return NewListType(et), nil
+ case *celpb.Type_MapType_:
+ kt, err := ProtoAsType(t.GetMapType().GetKeyType())
+ if err != nil {
+ return nil, err
+ }
+ vt, err := ProtoAsType(t.GetMapType().GetValueType())
+ if err != nil {
+ return nil, err
+ }
+ return NewMapType(kt, vt), nil
+ case *celpb.Type_MessageType:
+ return NewObjectType(t.GetMessageType()), nil
+ case *celpb.Type_Null:
+ return NullType, nil
+ case *celpb.Type_Primitive:
+ switch t.GetPrimitive() {
+ case celpb.Type_BOOL:
+ return BoolType, nil
+ case celpb.Type_BYTES:
+ return BytesType, nil
+ case celpb.Type_DOUBLE:
+ return DoubleType, nil
+ case celpb.Type_INT64:
+ return IntType, nil
+ case celpb.Type_STRING:
+ return StringType, nil
+ case celpb.Type_UINT64:
+ return UintType, nil
+ default:
+ return nil, fmt.Errorf("unsupported primitive type: %v", t)
+ }
+ case *celpb.Type_TypeParam:
+ return NewTypeParamType(t.GetTypeParam()), nil
+ case *celpb.Type_Type:
+ if t.GetType().GetTypeKind() != nil {
+ p, err := ProtoAsType(t.GetType())
+ if err != nil {
+ return nil, err
+ }
+ return NewTypeTypeWithParam(p), nil
+ }
+ return TypeType, nil
+ case *celpb.Type_WellKnown:
+ switch t.GetWellKnown() {
+ case celpb.Type_ANY:
+ return AnyType, nil
+ case celpb.Type_DURATION:
+ return DurationType, nil
+ case celpb.Type_TIMESTAMP:
+ return TimestampType, nil
+ default:
+ return nil, fmt.Errorf("unsupported well-known type: %v", t)
+ }
+ case *celpb.Type_Wrapper:
+ t, err := ProtoAsType(&celpb.Type{TypeKind: &celpb.Type_Primitive{Primitive: t.GetWrapper()}})
+ if err != nil {
+ return nil, err
+ }
+ return NewNullableType(t), nil
+ case *celpb.Type_Error:
+ return ErrorType, nil
+ default:
+ return nil, fmt.Errorf("unsupported type: %v", t)
+ }
+}
+
+func maybeWrapper(t *Type, pbType *exprpb.Type) *exprpb.Type {
+ if t.IsAssignableType(NullType) {
+ return chkdecls.NewWrapperType(pbType)
+ }
+ return pbType
+}
+
+func maybeForeignType(t ref.Type) *Type {
+ if celType, ok := t.(*Type); ok {
+ return celType
+ }
+ // Inspect the incoming type to determine its traits. The assumption will be that the incoming
+ // type does not have any field values; however, if the trait mask indicates that field testing
+ // and indexing are supported, the foreign type is marked as a struct.
+ traitMask := 0
+ for _, trait := range allTraits {
+ if t.HasTrait(trait) {
+ traitMask |= trait
+ }
+ }
+ // Treat the value like a struct. If it has no fields, this is harmless to denote the type
+ // as such since it basically becomes an opaque type by convention.
+ return NewObjectType(t.TypeName(), traitMask)
+}
+
+func convertProto(src, dst proto.Message) error {
+ pb, err := proto.Marshal(src)
+ if err != nil {
+ return err
+ }
+ err = proto.Unmarshal(pb, dst)
+ return err
+}
+
+func primitiveType(primitive celpb.Type_PrimitiveType) *celpb.Type {
+ return &celpb.Type{
+ TypeKind: &celpb.Type_Primitive{
+ Primitive: primitive,
+ },
+ }
+}
+
+var (
+ checkedWellKnowns = map[string]*Type{
+ // Wrapper types.
+ "google.protobuf.BoolValue": NewNullableType(BoolType),
+ "google.protobuf.BytesValue": NewNullableType(BytesType),
+ "google.protobuf.DoubleValue": NewNullableType(DoubleType),
+ "google.protobuf.FloatValue": NewNullableType(DoubleType),
+ "google.protobuf.Int64Value": NewNullableType(IntType),
+ "google.protobuf.Int32Value": NewNullableType(IntType),
+ "google.protobuf.UInt64Value": NewNullableType(UintType),
+ "google.protobuf.UInt32Value": NewNullableType(UintType),
+ "google.protobuf.StringValue": NewNullableType(StringType),
+ // Well-known types.
+ "google.protobuf.Any": AnyType,
+ "google.protobuf.Duration": DurationType,
+ "google.protobuf.Timestamp": TimestampType,
+ // Json types.
+ "google.protobuf.ListValue": NewListType(DynType),
+ "google.protobuf.NullValue": NullType,
+ "google.protobuf.Struct": NewMapType(StringType, DynType),
+ "google.protobuf.Value": DynType,
+ }
+
+ emptyParams = []*Type{}
+
+ allTraits = []int{
+ traits.AdderType,
+ traits.ComparerType,
+ traits.ContainerType,
+ traits.DividerType,
+ traits.FieldTesterType,
+ traits.IndexerType,
+ traits.IterableType,
+ traits.IteratorType,
+ traits.MatcherType,
+ traits.ModderType,
+ traits.MultiplierType,
+ traits.NegatorType,
+ traits.ReceiverType,
+ traits.SizerType,
+ traits.SubtractorType,
+ }
+
+ structTypeTraitMask = traits.FieldTesterType | traits.IndexerType
+
+ boolType = primitiveType(celpb.Type_BOOL)
+ bytesType = primitiveType(celpb.Type_BYTES)
+ doubleType = primitiveType(celpb.Type_DOUBLE)
+ intType = primitiveType(celpb.Type_INT64)
+ stringType = primitiveType(celpb.Type_STRING)
+ uintType = primitiveType(celpb.Type_UINT64)
+)
diff --git a/vendor/github.com/google/cel-go/common/types/uint.go b/vendor/github.com/google/cel-go/common/types/uint.go
index 615c7ec..6d74f30 100644
--- a/vendor/github.com/google/cel-go/common/types/uint.go
+++ b/vendor/github.com/google/cel-go/common/types/uint.go
@@ -21,7 +21,6 @@ import (
"strconv"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
anypb "google.golang.org/protobuf/types/known/anypb"
structpb "google.golang.org/protobuf/types/known/structpb"
@@ -32,15 +31,6 @@ import (
type Uint uint64
var (
- // UintType singleton.
- UintType = NewTypeValue("uint",
- traits.AdderType,
- traits.ComparerType,
- traits.DividerType,
- traits.ModderType,
- traits.MultiplierType,
- traits.SubtractorType)
-
uint32WrapperType = reflect.TypeOf(&wrapperspb.UInt32Value{})
uint64WrapperType = reflect.TypeOf(&wrapperspb.UInt64Value{})
@@ -90,6 +80,18 @@ func (i Uint) ConvertToNative(typeDesc reflect.Type) (any, error) {
return 0, err
}
return reflect.ValueOf(v).Convert(typeDesc).Interface(), nil
+ case reflect.Uint8:
+ v, err := uint64ToUint8Checked(uint64(i))
+ if err != nil {
+ return 0, err
+ }
+ return reflect.ValueOf(v).Convert(typeDesc).Interface(), nil
+ case reflect.Uint16:
+ v, err := uint64ToUint16Checked(uint64(i))
+ if err != nil {
+ return 0, err
+ }
+ return reflect.ValueOf(v).Convert(typeDesc).Interface(), nil
case reflect.Uint64:
return reflect.ValueOf(i).Convert(typeDesc).Interface(), nil
case reflect.Ptr:
diff --git a/vendor/github.com/google/cel-go/common/types/unknown.go b/vendor/github.com/google/cel-go/common/types/unknown.go
index bc411c1..9dd2b25 100644
--- a/vendor/github.com/google/cel-go/common/types/unknown.go
+++ b/vendor/github.com/google/cel-go/common/types/unknown.go
@@ -15,52 +15,312 @@
package types
import (
+ "fmt"
+ "math"
"reflect"
+ "sort"
+ "strings"
+ "unicode"
"github.com/google/cel-go/common/types/ref"
)
-// Unknown type implementation which collects expression ids which caused the
-// current value to become unknown.
-type Unknown []int64
-
var (
- // UnknownType singleton.
- UnknownType = NewTypeValue("unknown")
+ unspecifiedAttribute = &AttributeTrail{qualifierPath: []any{}}
)
+// NewAttributeTrail creates a new simple attribute from a variable name.
+func NewAttributeTrail(variable string) *AttributeTrail {
+ if variable == "" {
+ return unspecifiedAttribute
+ }
+ return &AttributeTrail{variable: variable}
+}
+
+// AttributeTrail specifies a variable with an optional qualifier path. An attribute value is expected to
+// correspond to an AbsoluteAttribute, meaning a field selection which starts with a top-level variable.
+//
+// The qualifer path elements adhere to the AttributeQualifier type constraint.
+type AttributeTrail struct {
+ variable string
+ qualifierPath []any
+}
+
+// Equal returns whether two attribute values have the same variable name and qualifier paths.
+func (a *AttributeTrail) Equal(other *AttributeTrail) bool {
+ if a.Variable() != other.Variable() || len(a.QualifierPath()) != len(other.QualifierPath()) {
+ return false
+ }
+ for i, q := range a.QualifierPath() {
+ qual := other.QualifierPath()[i]
+ if !qualifiersEqual(q, qual) {
+ return false
+ }
+ }
+ return true
+}
+
+func qualifiersEqual(a, b any) bool {
+ if a == b {
+ return true
+ }
+ switch numA := a.(type) {
+ case int64:
+ numB, ok := b.(uint64)
+ if !ok {
+ return false
+ }
+ return intUintEqual(numA, numB)
+ case uint64:
+ numB, ok := b.(int64)
+ if !ok {
+ return false
+ }
+ return intUintEqual(numB, numA)
+ default:
+ return false
+ }
+}
+
+func intUintEqual(i int64, u uint64) bool {
+ if i < 0 || u > math.MaxInt64 {
+ return false
+ }
+ return i == int64(u)
+}
+
+// Variable returns the variable name associated with the attribute.
+func (a *AttributeTrail) Variable() string {
+ return a.variable
+}
+
+// QualifierPath returns the optional set of qualifying fields or indices applied to the variable.
+func (a *AttributeTrail) QualifierPath() []any {
+ return a.qualifierPath
+}
+
+// String returns the string representation of the Attribute.
+func (a *AttributeTrail) String() string {
+ if a.variable == "" {
+ return "<unspecified>"
+ }
+ var str strings.Builder
+ str.WriteString(a.variable)
+ for _, q := range a.qualifierPath {
+ switch q := q.(type) {
+ case bool, int64:
+ str.WriteString(fmt.Sprintf("[%v]", q))
+ case uint64:
+ str.WriteString(fmt.Sprintf("[%vu]", q))
+ case string:
+ if isIdentifierCharacter(q) {
+ str.WriteString(fmt.Sprintf(".%v", q))
+ } else {
+ str.WriteString(fmt.Sprintf("[%q]", q))
+ }
+ }
+ }
+ return str.String()
+}
+
+func isIdentifierCharacter(str string) bool {
+ for _, c := range str {
+ if unicode.IsLetter(c) || unicode.IsDigit(c) || string(c) == "_" {
+ continue
+ }
+ return false
+ }
+ return true
+}
+
+// AttributeQualifier constrains the possible types which may be used to qualify an attribute.
+type AttributeQualifier interface {
+ bool | int64 | uint64 | string
+}
+
+// QualifyAttribute qualifies an attribute using a valid AttributeQualifier type.
+func QualifyAttribute[T AttributeQualifier](attr *AttributeTrail, qualifier T) *AttributeTrail {
+ attr.qualifierPath = append(attr.qualifierPath, qualifier)
+ return attr
+}
+
+// Unknown type which collects expression ids which caused the current value to become unknown.
+type Unknown struct {
+ attributeTrails map[int64][]*AttributeTrail
+}
+
+// NewUnknown creates a new unknown at a given expression id for an attribute.
+//
+// If the attribute is nil, the attribute value will be the `unspecifiedAttribute`.
+func NewUnknown(id int64, attr *AttributeTrail) *Unknown {
+ if attr == nil {
+ attr = unspecifiedAttribute
+ }
+ return &Unknown{
+ attributeTrails: map[int64][]*AttributeTrail{id: {attr}},
+ }
+}
+
+// IDs returns the set of unknown expression ids contained by this value.
+//
+// Numeric identifiers are guaranteed to be in sorted order.
+func (u *Unknown) IDs() []int64 {
+ ids := make(int64Slice, len(u.attributeTrails))
+ i := 0
+ for id := range u.attributeTrails {
+ ids[i] = id
+ i++
+ }
+ ids.Sort()
+ return ids
+}
+
+// GetAttributeTrails returns the attribute trails, if present, missing for a given expression id.
+func (u *Unknown) GetAttributeTrails(id int64) ([]*AttributeTrail, bool) {
+ trails, found := u.attributeTrails[id]
+ return trails, found
+}
+
+// Contains returns true if the input unknown is a subset of the current unknown.
+func (u *Unknown) Contains(other *Unknown) bool {
+ for id, otherTrails := range other.attributeTrails {
+ trails, found := u.attributeTrails[id]
+ if !found || len(otherTrails) != len(trails) {
+ return false
+ }
+ for _, ot := range otherTrails {
+ found := false
+ for _, t := range trails {
+ if t.Equal(ot) {
+ found = true
+ break
+ }
+ }
+ if !found {
+ return false
+ }
+ }
+ }
+ return true
+}
+
// ConvertToNative implements ref.Val.ConvertToNative.
-func (u Unknown) ConvertToNative(typeDesc reflect.Type) (any, error) {
+func (u *Unknown) ConvertToNative(typeDesc reflect.Type) (any, error) {
return u.Value(), nil
}
// ConvertToType is an identity function since unknown values cannot be modified.
-func (u Unknown) ConvertToType(typeVal ref.Type) ref.Val {
+func (u *Unknown) ConvertToType(typeVal ref.Type) ref.Val {
return u
}
// Equal is an identity function since unknown values cannot be modified.
-func (u Unknown) Equal(other ref.Val) ref.Val {
+func (u *Unknown) Equal(other ref.Val) ref.Val {
return u
}
+// String implements the Stringer interface
+func (u *Unknown) String() string {
+ var str strings.Builder
+ for id, attrs := range u.attributeTrails {
+ if str.Len() != 0 {
+ str.WriteString(", ")
+ }
+ if len(attrs) == 1 {
+ str.WriteString(fmt.Sprintf("%v (%d)", attrs[0], id))
+ } else {
+ str.WriteString(fmt.Sprintf("%v (%d)", attrs, id))
+ }
+ }
+ return str.String()
+}
+
// Type implements ref.Val.Type.
-func (u Unknown) Type() ref.Type {
+func (u *Unknown) Type() ref.Type {
return UnknownType
}
// Value implements ref.Val.Value.
-func (u Unknown) Value() any {
- return []int64(u)
+func (u *Unknown) Value() any {
+ return u
}
-// IsUnknown returns whether the element ref.Type or ref.Val is equal to the
-// UnknownType singleton.
+// IsUnknown returns whether the element ref.Val is in instance of *types.Unknown
func IsUnknown(val ref.Val) bool {
switch val.(type) {
- case Unknown:
+ case *Unknown:
return true
default:
return false
}
}
+
+// MaybeMergeUnknowns determines whether an input value and another, possibly nil, unknown will produce
+// an unknown result.
+//
+// If the input `val` is another Unknown, then the result will be the merge of the `val` and the input
+// `unk`. If the `val` is not unknown, then the result will depend on whether the input `unk` is nil.
+// If both values are non-nil and unknown, then the return value will be a merge of both unknowns.
+func MaybeMergeUnknowns(val ref.Val, unk *Unknown) (*Unknown, bool) {
+ src, isUnk := val.(*Unknown)
+ if !isUnk {
+ if unk != nil {
+ return unk, true
+ }
+ return unk, false
+ }
+ return MergeUnknowns(src, unk), true
+}
+
+// MergeUnknowns combines two unknown values into a new unknown value.
+func MergeUnknowns(unk1, unk2 *Unknown) *Unknown {
+ if unk1 == nil {
+ return unk2
+ }
+ if unk2 == nil {
+ return unk1
+ }
+ out := &Unknown{
+ attributeTrails: make(map[int64][]*AttributeTrail, len(unk1.attributeTrails)+len(unk2.attributeTrails)),
+ }
+ for id, ats := range unk1.attributeTrails {
+ out.attributeTrails[id] = ats
+ }
+ for id, ats := range unk2.attributeTrails {
+ existing, found := out.attributeTrails[id]
+ if !found {
+ out.attributeTrails[id] = ats
+ continue
+ }
+
+ for _, at := range ats {
+ found := false
+ for _, et := range existing {
+ if at.Equal(et) {
+ found = true
+ break
+ }
+ }
+ if !found {
+ existing = append(existing, at)
+ }
+ }
+ out.attributeTrails[id] = existing
+ }
+ return out
+}
+
+// int64Slice is an implementation of the sort.Interface
+type int64Slice []int64
+
+// Len returns the number of elements in the slice.
+func (x int64Slice) Len() int { return len(x) }
+
+// Less indicates whether the value at index i is less than the value at index j.
+func (x int64Slice) Less(i, j int) bool { return x[i] < x[j] }
+
+// Swap swaps the values at indices i and j in place.
+func (x int64Slice) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
+
+// Sort is a convenience method: x.Sort() calls Sort(x).
+func (x int64Slice) Sort() { sort.Sort(x) }
diff --git a/vendor/github.com/google/cel-go/common/types/util.go b/vendor/github.com/google/cel-go/common/types/util.go
index a8e9afa..71662ee 100644
--- a/vendor/github.com/google/cel-go/common/types/util.go
+++ b/vendor/github.com/google/cel-go/common/types/util.go
@@ -21,7 +21,7 @@ import (
// IsUnknownOrError returns whether the input element ref.Val is an ErrType or UnknownType.
func IsUnknownOrError(val ref.Val) bool {
switch val.(type) {
- case Unknown, *Err:
+ case *Unknown, *Err:
return true
}
return false
diff --git a/vendor/github.com/google/cel-go/ext/BUILD.bazel b/vendor/github.com/google/cel-go/ext/BUILD.bazel
index 7dfbc6f..b764fa1 100644
--- a/vendor/github.com/google/cel-go/ext/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/ext/BUILD.bazel
@@ -7,8 +7,12 @@ package(
go_library(
name = "go_default_library",
srcs = [
+ "bindings.go",
+ "comprehensions.go",
"encoders.go",
+ "formatting.go",
"guards.go",
+ "lists.go",
"math.go",
"native.go",
"protos.go",
@@ -19,15 +23,17 @@ go_library(
visibility = ["//visibility:public"],
deps = [
"//cel:go_default_library",
- "//checker/decls:go_default_library",
- "//common:go_default_library",
+ "//checker:go_default_library",
+ "//common/ast:go_default_library",
+ "//common/decls:go_default_library",
"//common/overloads:go_default_library",
+ "//common/operators:go_default_library",
"//common/types:go_default_library",
"//common/types/pb:go_default_library",
"//common/types/ref:go_default_library",
"//common/types/traits:go_default_library",
"//interpreter:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "//parser:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//reflect/protoreflect:go_default_library",
"@org_golang_google_protobuf//types/known/structpb",
@@ -40,7 +46,10 @@ go_test(
name = "go_default_test",
size = "small",
srcs = [
- "encoders_test.go",
+ "bindings_test.go",
+ "comprehensions_test.go",
+ "encoders_test.go",
+ "lists_test.go",
"math_test.go",
"native_test.go",
"protos_test.go",
@@ -53,14 +62,12 @@ go_test(
deps = [
"//cel:go_default_library",
"//checker:go_default_library",
- "//common:go_default_library",
"//common/types:go_default_library",
"//common/types/ref:go_default_library",
"//common/types/traits:go_default_library",
"//test:go_default_library",
- "//test/proto2pb:go_default_library",
- "//test/proto3pb:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "//test/proto2pb:go_default_library",
+ "//test/proto3pb:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//types/known/wrapperspb:go_default_library",
"@org_golang_google_protobuf//encoding/protojson:go_default_library",
diff --git a/vendor/github.com/google/cel-go/ext/README.md b/vendor/github.com/google/cel-go/ext/README.md
index ef0eb2a..07e544d 100644
--- a/vendor/github.com/google/cel-go/ext/README.md
+++ b/vendor/github.com/google/cel-go/ext/README.md
@@ -3,12 +3,12 @@
CEL extensions are a related set of constants, functions, macros, or other
features which may not be covered by the core CEL spec.
-## Bindings
+## Bindings
Returns a cel.EnvOption to configure support for local variable bindings
in expressions.
-# Cel.Bind
+### Cel.Bind
Binds a simple identifier to an initialization expression which may be used
in a subsequenct result expression. Bindings may also be nested within each
@@ -19,11 +19,11 @@ other.
Examples:
cel.bind(a, 'hello',
- cel.bind(b, 'world', a + b + b + a)) // "helloworldworldhello"
+ cel.bind(b, 'world', a + b + b + a)) // "helloworldworldhello"
// Avoid a list allocation within the exists comprehension.
cel.bind(valid_values, [a, b, c],
- [d, e, f].exists(elem, elem in valid_values))
+ [d, e, f].exists(elem, elem in valid_values))
Local bindings are not guaranteed to be evaluated before use.
@@ -100,7 +100,8 @@ argument. Simple numeric and list literals are supported as valid argument
types; however, other literals will be flagged as errors during macro
expansion. If the argument expression does not resolve to a numeric or
list(numeric) type during type-checking, or during runtime then an error
-will be produced. If a list argument is empty, this too will produce an error.
+will be produced. If a list argument is empty, this too will produce an
+error.
math.least(<arg>, ...) -> <double|int|uint>
@@ -117,6 +118,244 @@ Examples:
math.least(a, b) // check-time error if a or b is non-numeric
math.least(dyn('string')) // runtime error
+### Math.BitOr
+
+Introduced at version: 1
+
+Performs a bitwise-OR operation over two int or uint values.
+
+ math.bitOr(<int>, <int>) -> <int>
+ math.bitOr(<uint>, <uint>) -> <uint>
+
+Examples:
+
+ math.bitOr(1u, 2u) // returns 3u
+ math.bitOr(-2, -4) // returns -2
+
+### Math.BitAnd
+
+Introduced at version: 1
+
+Performs a bitwise-AND operation over two int or uint values.
+
+ math.bitAnd(<int>, <int>) -> <int>
+ math.bitAnd(<uint>, <uint>) -> <uint>
+
+Examples:
+
+ math.bitAnd(3u, 2u) // return 2u
+ math.bitAnd(3, 5) // returns 3
+ math.bitAnd(-3, -5) // returns -7
+
+### Math.BitXor
+
+Introduced at version: 1
+
+ math.bitXor(<int>, <int>) -> <int>
+ math.bitXor(<uint>, <uint>) -> <uint>
+
+Performs a bitwise-XOR operation over two int or uint values.
+
+Examples:
+
+ math.bitXor(3u, 5u) // returns 6u
+ math.bitXor(1, 3) // returns 2
+
+### Math.BitNot
+
+Introduced at version: 1
+
+Function which accepts a single int or uint and performs a bitwise-NOT
+ones-complement of the given binary value.
+
+ math.bitNot(<int>) -> <int>
+ math.bitNot(<uint>) -> <uint>
+
+Examples
+
+ math.bitNot(1) // returns -1
+ math.bitNot(-1) // return 0
+ math.bitNot(0u) // returns 18446744073709551615u
+
+### Math.BitShiftLeft
+
+Introduced at version: 1
+
+Perform a left shift of bits on the first parameter, by the amount of bits
+specified in the second parameter. The first parameter is either a uint or
+an int. The second parameter must be an int.
+
+When the second parameter is 64 or greater, 0 will be always be returned
+since the number of bits shifted is greater than or equal to the total bit
+length of the number being shifted. Negative valued bit shifts will result
+in a runtime error.
+
+ math.bitShiftLeft(<int>, <int>) -> <int>
+ math.bitShiftLeft(<uint>, <int>) -> <uint>
+
+Examples
+
+ math.bitShiftLeft(1, 2) // returns 4
+ math.bitShiftLeft(-1, 2) // returns -4
+ math.bitShiftLeft(1u, 2) // return 4u
+ math.bitShiftLeft(1u, 200) // returns 0u
+
+### Math.BitShiftRight
+
+Introduced at version: 1
+
+Perform a right shift of bits on the first parameter, by the amount of bits
+specified in the second parameter. The first parameter is either a uint or
+an int. The second parameter must be an int.
+
+When the second parameter is 64 or greater, 0 will always be returned since
+the number of bits shifted is greater than or equal to the total bit length
+of the number being shifted. Negative valued bit shifts will result in a
+runtime error.
+
+The sign bit extension will not be preserved for this operation: vacant bits
+on the left are filled with 0.
+
+ math.bitShiftRight(<int>, <int>) -> <int>
+ math.bitShiftRight(<uint>, <int>) -> <uint>
+
+Examples
+
+ math.bitShiftRight(1024, 2) // returns 256
+ math.bitShiftRight(1024u, 2) // returns 256u
+ math.bitShiftRight(1024u, 64) // returns 0u
+
+### Math.Ceil
+
+Introduced at version: 1
+
+Compute the ceiling of a double value.
+
+ math.ceil(<double>) -> <double>
+
+Examples:
+
+ math.ceil(1.2) // returns 2.0
+ math.ceil(-1.2) // returns -1.0
+
+### Math.Floor
+
+Introduced at version: 1
+
+Compute the floor of a double value.
+
+ math.floor(<double>) -> <double>
+
+Examples:
+
+ math.floor(1.2) // returns 1.0
+ math.floor(-1.2) // returns -2.0
+
+### Math.Round
+
+Introduced at version: 1
+
+Rounds the double value to the nearest whole number with ties rounding away
+from zero, e.g. 1.5 -> 2.0, -1.5 -> -2.0.
+
+ math.round(<double>) -> <double>
+
+Examples:
+
+ math.round(1.2) // returns 1.0
+ math.round(1.5) // returns 2.0
+ math.round(-1.5) // returns -2.0
+
+### Math.Trunc
+
+Introduced at version: 1
+
+Truncates the fractional portion of the double value.
+
+ math.trunc(<double>) -> <double>
+
+Examples:
+
+ math.trunc(-1.3) // returns -1.0
+ math.trunc(1.3) // returns 1.0
+
+### Math.Abs
+
+Introduced at version: 1
+
+Returns the absolute value of the numeric type provided as input. If the
+value is NaN, the output is NaN. If the input is int64 min, the function
+will result in an overflow error.
+
+ math.abs(<double>) -> <double>
+ math.abs(<int>) -> <int>
+ math.abs(<uint>) -> <uint>
+
+Examples:
+
+ math.abs(-1) // returns 1
+ math.abs(1) // returns 1
+ math.abs(-9223372036854775808) // overlflow error
+
+### Math.Sign
+
+Introduced at version: 1
+
+Returns the sign of the numeric type, either -1, 0, 1 as an int, double, or
+uint depending on the overload. For floating point values, if NaN is
+provided as input, the output is also NaN. The implementation does not
+differentiate between positive and negative zero.
+
+ math.sign(<double>) -> <double>
+ math.sign(<int>) -> <int>
+ math.sign(<uint>) -> <uint>
+
+Examples:
+
+ math.sign(-42) // returns -1
+ math.sign(0) // returns 0
+ math.sign(42) // returns 1
+
+### Math.IsInf
+
+Introduced at version: 1
+
+Returns true if the input double value is -Inf or +Inf.
+
+ math.isInf(<double>) -> <bool>
+
+Examples:
+
+ math.isInf(1.0/0.0) // returns true
+ math.isInf(1.2) // returns false
+
+### Math.IsNaN
+
+Introduced at version: 1
+
+Returns true if the input double value is NaN, false otherwise.
+
+ math.isNaN(<double>) -> <bool>
+
+Examples:
+
+ math.isNaN(0.0/0.0) // returns true
+ math.isNaN(1.2) // returns false
+
+### Math.IsFinite
+
+Introduced at version: 1
+
+Returns true if the value is a finite number. Equivalent in behavior to:
+!math.isNaN(double) && !math.isInf(double)
+
+ math.isFinite(<double>) -> <bool>
+
+Examples:
+
+ math.isFinite(0.0/0.0) // returns false
+ math.isFinite(1.2) // returns true
+
## Protos
Protos configure extended macros and functions for proto manipulation.
@@ -149,6 +388,118 @@ Example:
proto.hasExt(msg, google.expr.proto2.test.int32_ext) // returns true || false
+## Lists
+
+Extended functions for list manipulation. As a general note, all indices are
+zero-based.
+
+### Distinct
+
+**Introduced in version 2**
+
+Returns the distinct elements of a list.
+
+ <list(T)>.distinct() -> <list(T)>
+
+Examples:
+
+ [1, 2, 2, 3, 3, 3].distinct() // return [1, 2, 3]
+ ["b", "b", "c", "a", "c"].distinct() // return ["b", "c", "a"]
+ [1, "b", 2, "b"].distinct() // return [1, "b", 2]
+
+### Flatten
+
+**Introduced in version 1**
+
+Flattens a list recursively.
+If an optional depth is provided, the list is flattened to a the specificied level.
+A negative depth value will result in an error.
+
+ <list>.flatten(<list>) -> <list>
+ <list>.flatten(<list>, <int>) -> <list>
+
+Examples:
+
+ [1,[2,3],[4]].flatten() // return [1, 2, 3, 4]
+ [1,[2,[3,4]]].flatten() // return [1, 2, [3, 4]]
+ [1,2,[],[],[3,4]].flatten() // return [1, 2, 3, 4]
+ [1,[2,[3,[4]]]].flatten(2) // return [1, 2, 3, [4]]
+ [1,[2,[3,[4]]]].flatten(-1) // error
+
+### Range
+
+**Introduced in version 2**
+
+Returns a list of integers from 0 to n-1.
+
+ lists.range(<int>) -> <list(int)>
+
+Examples:
+
+ lists.range(5) -> [0, 1, 2, 3, 4]
+
+
+### Reverse
+
+**Introduced in version 2**
+
+Returns the elements of a list in reverse order.
+
+ <list(T)>.reverse() -> <list(T)>
+
+Examples:
+
+ [5, 3, 1, 2].reverse() // return [2, 1, 3, 5]
+
+
+### Slice
+
+
+Returns a new sub-list using the indexes provided.
+
+ <list>.slice(<int>, <int>) -> <list>
+
+Examples:
+
+ [1,2,3,4].slice(1, 3) // return [2, 3]
+ [1,2,3,4].slice(2, 4) // return [3, 4]
+
+### Sort
+
+**Introduced in version 2**
+
+Sorts a list with comparable elements. If the element type is not comparable
+or the element types are not the same, the function will produce an error.
+
+ <list(T)>.sort() -> <list(T)>
+ T in {int, uint, double, bool, duration, timestamp, string, bytes}
+
+Examples:
+
+ [3, 2, 1].sort() // return [1, 2, 3]
+ ["b", "c", "a"].sort() // return ["a", "b", "c"]
+ [1, "b"].sort() // error
+ [[1, 2, 3]].sort() // error
+
+### SortBy
+
+**Introduced in version 2**
+
+Sorts a list by a key value, i.e., the order is determined by the result of
+an expression applied to each element of the list.
+
+ <list(T)>.sortBy(<bindingName>, <keyExpr>) -> <list(T)>
+ keyExpr returns a value in {int, uint, double, bool, duration, timestamp, string, bytes}
+
+Examples:
+
+ [
+ Player { name: "foo", score: 0 },
+ Player { name: "bar", score: -10 },
+ Player { name: "baz", score: 1000 },
+ ].sortBy(e, e.score).map(e, e.name)
+ == ["bar", "foo", "baz"]
+
## Sets
Sets provides set relationship tests.
@@ -242,7 +593,8 @@ Examples:
'hello mellow'.indexOf('jello') // returns -1
'hello mellow'.indexOf('', 2) // returns 2
'hello mellow'.indexOf('ello', 2) // returns 7
- 'hello mellow'.indexOf('ello', 20) // error
+ 'hello mellow'.indexOf('ello', 20) // returns -1
+ 'hello mellow'.indexOf('ello', -1) // error
### Join
@@ -256,10 +608,10 @@ elements in the resulting string.
Examples:
- ['hello', 'mellow'].join() // returns 'hellomellow'
- ['hello', 'mellow'].join(' ') // returns 'hello mellow'
- [].join() // returns ''
- [].join('/') // returns ''
+ ['hello', 'mellow'].join() // returns 'hellomellow'
+ ['hello', 'mellow'].join(' ') // returns 'hello mellow'
+ [].join() // returns ''
+ [].join('/') // returns ''
### LastIndexOf
@@ -280,6 +632,7 @@ Examples:
'hello mellow'.lastIndexOf('ello') // returns 7
'hello mellow'.lastIndexOf('jello') // returns -1
'hello mellow'.lastIndexOf('ello', 6) // returns 1
+ 'hello mellow'.lastIndexOf('ello', 20) // returns -1
'hello mellow'.lastIndexOf('ello', -1) // error
### LowerAscii
@@ -397,3 +750,150 @@ Examples:
'TacoCat'.upperAscii() // returns 'TACOCAT'
'TacoCÆt Xii'.upperAscii() // returns 'TACOCÆT XII'
+
+### Reverse
+
+Returns a new string whose characters are the same as the target string, only formatted in
+reverse order.
+This function relies on converting strings to rune arrays in order to reverse.
+It can be located in Version 3 of strings.
+
+ <string>.reverse() -> <string>
+
+Examples:
+
+ 'gums'.reverse() // returns 'smug'
+ 'John Smith'.reverse() // returns 'htimS nhoJ'
+
+## TwoVarComprehensions
+
+TwoVarComprehensions introduces support for two-variable comprehensions.
+
+The two-variable form of comprehensions looks similar to the one-variable
+counterparts. Where possible, the same macro names were used and additional
+macro signatures added. The notable distinction for two-variable comprehensions
+is the introduction of `transformList`, `transformMap`, and `transformMapEntry`
+support for list and map types rather than the more traditional `map` and
+`filter` macros.
+
+### All
+
+Comprehension which tests whether all elements in the list or map satisfy a
+given predicate. The `all` macro evaluates in a manner consistent with logical
+AND and will short-circuit when encountering a `false` value.
+
+ <list>.all(indexVar, valueVar, <predicate>) -> bool
+ <map>.all(keyVar, valueVar, <predicate>) -> bool
+
+Examples:
+
+ [1, 2, 3].all(i, j, i < j) // returns true
+ {'hello': 'world', 'taco': 'taco'}.all(k, v, k != v) // returns false
+
+ // Combines two-variable comprehension with single variable
+ {'h': ['hello', 'hi'], 'j': ['joke', 'jog']}
+ .all(k, vals, vals.all(v, v.startsWith(k))) // returns true
+
+### Exists
+
+Comprehension which tests whether any element in a list or map exists which
+satisfies a given predicate. The `exists` macro evaluates in a manner consistent
+with logical OR and will short-circuit when encountering a `true` value.
+
+ <list>.exists(indexVar, valueVar, <predicate>) -> bool
+ <map>.exists(keyVar, valueVar, <predicate>) -> bool
+
+Examples:
+
+ {'greeting': 'hello', 'farewell': 'goodbye'}
+ .exists(k, v, k.startsWith('good') || v.endsWith('bye')) // returns true
+ [1, 2, 4, 8, 16].exists(i, v, v == 1024 && i == 10) // returns false
+
+### ExistsOne
+
+Comprehension which tests whether exactly one element in a list or map exists
+which satisfies a given predicate expression. This comprehension does not
+short-circuit in keeping with the one-variable exists one macro semantics.
+
+ <list>.existsOne(indexVar, valueVar, <predicate>)
+ <map>.existsOne(keyVar, valueVar, <predicate>)
+
+This macro may also be used with the `exists_one` function name, for
+compatibility with the one-variable macro of the same name.
+
+Examples:
+
+ [1, 2, 1, 3, 1, 4].existsOne(i, v, i == 1 || v == 1) // returns false
+ [1, 1, 2, 2, 3, 3].existsOne(i, v, i == 2 && v == 2) // returns true
+ {'i': 0, 'j': 1, 'k': 2}.existsOne(i, v, i == 'l' || v == 1) // returns true
+
+### TransformList
+
+Comprehension which converts a map or a list into a list value. The output
+expression of the comprehension determines the contents of the output list.
+Elements in the list may optionally be filtered according to a predicate
+expression, where elements that satisfy the predicate are transformed.
+
+ <list>.transformList(indexVar, valueVar, <transform>)
+ <list>.transformList(indexVar, valueVar, <filter>, <transform>)
+ <map>.transformList(keyVar, valueVar, <transform>)
+ <map>.transformList(keyVar, valueVar, <filter>, <transform>)
+
+Examples:
+
+ [1, 2, 3].transformList(indexVar, valueVar,
+ (indexVar * valueVar) + valueVar) // returns [1, 4, 9]
+ [1, 2, 3].transformList(indexVar, valueVar, indexVar % 2 == 0
+ (indexVar * valueVar) + valueVar) // returns [1, 9]
+ {'greeting': 'hello', 'farewell': 'goodbye'}
+ .transformList(k, _, k) // returns ['greeting', 'farewell']
+ {'greeting': 'hello', 'farewell': 'goodbye'}
+ .transformList(_, v, v) // returns ['hello', 'goodbye']
+
+### TransformMap
+
+Comprehension which converts a map or a list into a map value. The output
+expression of the comprehension determines the value of the output map entry;
+however, the key remains fixed. Elements in the map may optionally be filtered
+according to a predicate expression, where elements that satisfy the predicate
+are transformed.
+
+ <list>.transformMap(indexVar, valueVar, <transform>)
+ <list>.transformMap(indexVar, valueVar, <filter>, <transform>)
+ <map>.transformMap(keyVar, valueVar, <transform>)
+ <map>.transformMap(keyVar, valueVar, <filter>, <transform>)
+
+Examples:
+
+ [1, 2, 3].transformMap(indexVar, valueVar,
+ (indexVar * valueVar) + valueVar) // returns {0: 1, 1: 4, 2: 9}
+ [1, 2, 3].transformMap(indexVar, valueVar, indexVar % 2 == 0
+ (indexVar * valueVar) + valueVar) // returns {0: 1, 2: 9}
+ {'greeting': 'hello'}.transformMap(k, v, v + '!') // returns {'greeting': 'hello!'}
+
+### TransformMapEntry
+
+Comprehension which converts a map or a list into a map value; however, this
+transform expects the entry expression be a map literal. If the transform
+produces an entry which duplicates a key in the target map, the comprehension
+will error. Note, that key equality is determined using CEL equality which
+asserts that numeric values which are equal, even if they don't have the same
+type will cause a key collision.
+
+Elements in the map may optionally be filtered according to a predicate
+expression, where elements that satisfy the predicate are transformed.
+
+ <list>.transformMap(indexVar, valueVar, <transform>)
+ <list>.transformMap(indexVar, valueVar, <filter>, <transform>)
+ <map>.transformMap(keyVar, valueVar, <transform>)
+ <map>.transformMap(keyVar, valueVar, <filter>, <transform>)
+
+Examples:
+
+ // returns {'hello': 'greeting'}
+ {'greeting': 'hello'}.transformMapEntry(keyVar, valueVar, {valueVar: keyVar})
+ // reverse lookup, require all values in list be unique
+ [1, 2, 3].transformMapEntry(indexVar, valueVar, {valueVar: indexVar})
+
+ {'greeting': 'aloha', 'farewell': 'aloha'}
+ .transformMapEntry(keyVar, valueVar, {valueVar: keyVar}) // error, duplicate key
diff --git a/vendor/github.com/google/cel-go/ext/bindings.go b/vendor/github.com/google/cel-go/ext/bindings.go
index 9cc3c3e..50cf4fb 100644
--- a/vendor/github.com/google/cel-go/ext/bindings.go
+++ b/vendor/github.com/google/cel-go/ext/bindings.go
@@ -15,10 +15,19 @@
package ext
import (
- "github.com/google/cel-go/cel"
- "github.com/google/cel-go/common"
+ "errors"
+ "fmt"
+ "math"
+ "strconv"
+ "strings"
+ "sync"
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/cel"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+ "github.com/google/cel-go/common/types/traits"
+ "github.com/google/cel-go/interpreter"
)
// Bindings returns a cel.EnvOption to configure support for local variable
@@ -42,59 +51,286 @@ import (
// [d, e, f].exists(elem, elem in valid_values))
//
// Local bindings are not guaranteed to be evaluated before use.
-func Bindings() cel.EnvOption {
- return cel.Lib(celBindings{})
+func Bindings(options ...BindingsOption) cel.EnvOption {
+ b := &celBindings{version: math.MaxUint32}
+ for _, o := range options {
+ b = o(b)
+ }
+ return cel.Lib(b)
}
const (
celNamespace = "cel"
bindMacro = "bind"
+ blockFunc = "@block"
unusedIterVar = "#unused"
)
-type celBindings struct{}
+// BindingsOption declares a functional operator for configuring the Bindings library behavior.
+type BindingsOption func(*celBindings) *celBindings
+
+// BindingsVersion sets the version of the bindings library to an explicit version.
+func BindingsVersion(version uint32) BindingsOption {
+ return func(lib *celBindings) *celBindings {
+ lib.version = version
+ return lib
+ }
+}
+
+type celBindings struct {
+ version uint32
+}
-func (celBindings) LibraryName() string {
+func (*celBindings) LibraryName() string {
return "cel.lib.ext.cel.bindings"
}
-func (celBindings) CompileOptions() []cel.EnvOption {
- return []cel.EnvOption{
+func (lib *celBindings) CompileOptions() []cel.EnvOption {
+ opts := []cel.EnvOption{
cel.Macros(
// cel.bind(var, <init>, <expr>)
- cel.NewReceiverMacro(bindMacro, 3, celBind),
+ cel.ReceiverMacro(bindMacro, 3, celBind),
),
}
+ if lib.version >= 1 {
+ // The cel.@block signature takes a list of subexpressions and a typed expression which is
+ // used as the output type.
+ paramType := cel.TypeParamType("T")
+ opts = append(opts,
+ cel.Function("cel.@block",
+ cel.Overload("cel_block_list",
+ []*cel.Type{cel.ListType(cel.DynType), paramType}, paramType)),
+ )
+ opts = append(opts, cel.ASTValidators(blockValidationExemption{}))
+ }
+ return opts
}
-func (celBindings) ProgramOptions() []cel.ProgramOption {
+func (lib *celBindings) ProgramOptions() []cel.ProgramOption {
+ if lib.version >= 1 {
+ celBlockPlan := func(i interpreter.Interpretable) (interpreter.Interpretable, error) {
+ call, ok := i.(interpreter.InterpretableCall)
+ if !ok {
+ return i, nil
+ }
+ switch call.Function() {
+ case "cel.@block":
+ args := call.Args()
+ if len(args) != 2 {
+ return nil, fmt.Errorf("cel.@block expects two arguments, but got %d", len(args))
+ }
+ expr := args[1]
+ // Non-empty block
+ if block, ok := args[0].(interpreter.InterpretableConstructor); ok {
+ slotExprs := block.InitVals()
+ return newDynamicBlock(slotExprs, expr), nil
+ }
+ // Constant valued block which can happen during runtime optimization.
+ if cons, ok := args[0].(interpreter.InterpretableConst); ok {
+ if cons.Value().Type() == types.ListType {
+ l := cons.Value().(traits.Lister)
+ if l.Size().Equal(types.IntZero) == types.True {
+ return args[1], nil
+ }
+ return newConstantBlock(l, expr), nil
+ }
+ }
+ return nil, errors.New("cel.@block expects a list constructor as the first argument")
+ default:
+ return i, nil
+ }
+ }
+ return []cel.ProgramOption{cel.CustomDecorator(celBlockPlan)}
+ }
return []cel.ProgramOption{}
}
-func celBind(meh cel.MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+type blockValidationExemption struct{}
+
+// Name returns the name of the validator.
+func (blockValidationExemption) Name() string {
+ return "cel.lib.ext.validate.functions.cel.block"
+}
+
+// Configure implements the ASTValidatorConfigurer interface and augments the list of functions to skip
+// during homogeneous aggregate literal type-checks.
+func (blockValidationExemption) Configure(config cel.MutableValidatorConfig) error {
+ functions := config.GetOrDefault(cel.HomogeneousAggregateLiteralExemptFunctions, []string{}).([]string)
+ functions = append(functions, "cel.@block")
+ return config.Set(cel.HomogeneousAggregateLiteralExemptFunctions, functions)
+}
+
+// Validate is a no-op as the intent is to simply disable strong type-checks for list literals during
+// when they occur within cel.@block calls as the arg types have already been validated.
+func (blockValidationExemption) Validate(env *cel.Env, _ cel.ValidatorConfig, a *ast.AST, iss *cel.Issues) {
+}
+
+func celBind(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
if !macroTargetMatchesNamespace(celNamespace, target) {
return nil, nil
}
varIdent := args[0]
varName := ""
- switch varIdent.GetExprKind().(type) {
- case *exprpb.Expr_IdentExpr:
- varName = varIdent.GetIdentExpr().GetName()
+ switch varIdent.Kind() {
+ case ast.IdentKind:
+ varName = varIdent.AsIdent()
default:
- return nil, &common.Error{
- Message: "cel.bind() variable names must be simple identifers",
- Location: meh.OffsetLocation(varIdent.GetId()),
- }
+ return nil, mef.NewError(varIdent.ID(), "cel.bind() variable names must be simple identifiers")
}
varInit := args[1]
resultExpr := args[2]
- return meh.Fold(
+ return mef.NewComprehension(
+ mef.NewList(),
unusedIterVar,
- meh.NewList(),
varName,
varInit,
- meh.LiteralBool(false),
- meh.Ident(varName),
+ mef.NewLiteral(types.False),
+ mef.NewIdent(varName),
resultExpr,
), nil
}
+
+func newDynamicBlock(slotExprs []interpreter.Interpretable, expr interpreter.Interpretable) interpreter.Interpretable {
+ bs := &dynamicBlock{
+ slotExprs: slotExprs,
+ expr: expr,
+ }
+ bs.slotActivationPool = &sync.Pool{
+ New: func() any {
+ slotCount := len(slotExprs)
+ sa := &dynamicSlotActivation{
+ slotExprs: slotExprs,
+ slotCount: slotCount,
+ slotVals: make([]*slotVal, slotCount),
+ }
+ for i := 0; i < slotCount; i++ {
+ sa.slotVals[i] = &slotVal{}
+ }
+ return sa
+ },
+ }
+ return bs
+}
+
+type dynamicBlock struct {
+ slotExprs []interpreter.Interpretable
+ expr interpreter.Interpretable
+ slotActivationPool *sync.Pool
+}
+
+// ID implements the Interpretable interface method.
+func (b *dynamicBlock) ID() int64 {
+ return b.expr.ID()
+}
+
+// Eval implements the Interpretable interface method.
+func (b *dynamicBlock) Eval(activation interpreter.Activation) ref.Val {
+ sa := b.slotActivationPool.Get().(*dynamicSlotActivation)
+ sa.Activation = activation
+ defer b.clearSlots(sa)
+ return b.expr.Eval(sa)
+}
+
+func (b *dynamicBlock) clearSlots(sa *dynamicSlotActivation) {
+ sa.reset()
+ b.slotActivationPool.Put(sa)
+}
+
+type slotVal struct {
+ value *ref.Val
+ visited bool
+}
+
+type dynamicSlotActivation struct {
+ interpreter.Activation
+ slotExprs []interpreter.Interpretable
+ slotCount int
+ slotVals []*slotVal
+}
+
+// ResolveName implements the Activation interface method but handles variables prefixed with `@index`
+// as special variables which exist within the slot-based memory of the cel.@block() where each slot
+// refers to an expression which must be computed only once.
+func (sa *dynamicSlotActivation) ResolveName(name string) (any, bool) {
+ if idx, found := matchSlot(name, sa.slotCount); found {
+ v := sa.slotVals[idx]
+ if v.visited {
+ // Return not found if the index expression refers to itself
+ if v.value == nil {
+ return nil, false
+ }
+ return *v.value, true
+ }
+ v.visited = true
+ val := sa.slotExprs[idx].Eval(sa)
+ v.value = &val
+ return val, true
+ }
+ return sa.Activation.ResolveName(name)
+}
+
+func (sa *dynamicSlotActivation) reset() {
+ sa.Activation = nil
+ for _, sv := range sa.slotVals {
+ sv.visited = false
+ sv.value = nil
+ }
+}
+
+func newConstantBlock(slots traits.Lister, expr interpreter.Interpretable) interpreter.Interpretable {
+ count := slots.Size().(types.Int)
+ return &constantBlock{slots: slots, slotCount: int(count), expr: expr}
+}
+
+type constantBlock struct {
+ slots traits.Lister
+ slotCount int
+ expr interpreter.Interpretable
+}
+
+// ID implements the interpreter.Interpretable interface method.
+func (b *constantBlock) ID() int64 {
+ return b.expr.ID()
+}
+
+// Eval implements the interpreter.Interpretable interface method, and will proxy @index prefixed variable
+// lookups into a set of constant slots determined from the plan step.
+func (b *constantBlock) Eval(activation interpreter.Activation) ref.Val {
+ vars := constantSlotActivation{Activation: activation, slots: b.slots, slotCount: b.slotCount}
+ return b.expr.Eval(vars)
+}
+
+type constantSlotActivation struct {
+ interpreter.Activation
+ slots traits.Lister
+ slotCount int
+}
+
+// ResolveName implements Activation interface method and proxies @index prefixed lookups into the slot
+// activation associated with the block scope.
+func (sa constantSlotActivation) ResolveName(name string) (any, bool) {
+ if idx, found := matchSlot(name, sa.slotCount); found {
+ return sa.slots.Get(types.Int(idx)), true
+ }
+ return sa.Activation.ResolveName(name)
+}
+
+func matchSlot(name string, slotCount int) (int, bool) {
+ if idx, found := strings.CutPrefix(name, indexPrefix); found {
+ idx, err := strconv.Atoi(idx)
+ // Return not found if the index is not numeric
+ if err != nil {
+ return -1, false
+ }
+ // Return not found if the index is not a valid slot
+ if idx < 0 || idx >= slotCount {
+ return -1, false
+ }
+ return idx, true
+ }
+ return -1, false
+}
+
+var (
+ indexPrefix = "@index"
+)
diff --git a/vendor/github.com/google/cel-go/ext/comprehensions.go b/vendor/github.com/google/cel-go/ext/comprehensions.go
new file mode 100644
index 0000000..1428558
--- /dev/null
+++ b/vendor/github.com/google/cel-go/ext/comprehensions.go
@@ -0,0 +1,410 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ext
+
+import (
+ "fmt"
+
+ "github.com/google/cel-go/cel"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/operators"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+ "github.com/google/cel-go/common/types/traits"
+ "github.com/google/cel-go/parser"
+)
+
+const (
+ mapInsert = "cel.@mapInsert"
+ mapInsertOverloadMap = "@mapInsert_map_map"
+ mapInsertOverloadKeyValue = "@mapInsert_map_key_value"
+)
+
+// TwoVarComprehensions introduces support for two-variable comprehensions.
+//
+// The two-variable form of comprehensions looks similar to the one-variable counterparts.
+// Where possible, the same macro names were used and additional macro signatures added.
+// The notable distinction for two-variable comprehensions is the introduction of
+// `transformList`, `transformMap`, and `transformMapEntry` support for list and map types
+// rather than the more traditional `map` and `filter` macros.
+//
+// # All
+//
+// Comprehension which tests whether all elements in the list or map satisfy a given
+// predicate. The `all` macro evaluates in a manner consistent with logical AND and will
+// short-circuit when encountering a `false` value.
+//
+// <list>.all(indexVar, valueVar, <predicate>) -> bool
+// <map>.all(keyVar, valueVar, <predicate>) -> bool
+//
+// Examples:
+//
+// [1, 2, 3].all(i, j, i < j) // returns true
+// {'hello': 'world', 'taco': 'taco'}.all(k, v, k != v) // returns false
+//
+// // Combines two-variable comprehension with single variable
+// {'h': ['hello', 'hi'], 'j': ['joke', 'jog']}
+// .all(k, vals, vals.all(v, v.startsWith(k))) // returns true
+//
+// # Exists
+//
+// Comprehension which tests whether any element in a list or map exists which satisfies
+// a given predicate. The `exists` macro evaluates in a manner consistent with logical OR
+// and will short-circuit when encountering a `true` value.
+//
+// <list>.exists(indexVar, valueVar, <predicate>) -> bool
+// <map>.exists(keyVar, valueVar, <predicate>) -> bool
+//
+// Examples:
+//
+// {'greeting': 'hello', 'farewell': 'goodbye'}
+// .exists(k, v, k.startsWith('good') || v.endsWith('bye')) // returns true
+// [1, 2, 4, 8, 16].exists(i, v, v == 1024 && i == 10) // returns false
+//
+// # ExistsOne
+//
+// Comprehension which tests whether exactly one element in a list or map exists which
+// satisfies a given predicate expression. This comprehension does not short-circuit in
+// keeping with the one-variable exists one macro semantics.
+//
+// <list>.existsOne(indexVar, valueVar, <predicate>)
+// <map>.existsOne(keyVar, valueVar, <predicate>)
+//
+// This macro may also be used with the `exists_one` function name, for compatibility
+// with the one-variable macro of the same name.
+//
+// Examples:
+//
+// [1, 2, 1, 3, 1, 4].existsOne(i, v, i == 1 || v == 1) // returns false
+// [1, 1, 2, 2, 3, 3].existsOne(i, v, i == 2 && v == 2) // returns true
+// {'i': 0, 'j': 1, 'k': 2}.existsOne(i, v, i == 'l' || v == 1) // returns true
+//
+// # TransformList
+//
+// Comprehension which converts a map or a list into a list value. The output expression
+// of the comprehension determines the contents of the output list. Elements in the list
+// may optionally be filtered according to a predicate expression, where elements that
+// satisfy the predicate are transformed.
+//
+// <list>.transformList(indexVar, valueVar, <transform>)
+// <list>.transformList(indexVar, valueVar, <filter>, <transform>)
+// <map>.transformList(keyVar, valueVar, <transform>)
+// <map>.transformList(keyVar, valueVar, <filter>, <transform>)
+//
+// Examples:
+//
+// [1, 2, 3].transformList(indexVar, valueVar,
+// (indexVar * valueVar) + valueVar) // returns [1, 4, 9]
+// [1, 2, 3].transformList(indexVar, valueVar, indexVar % 2 == 0
+// (indexVar * valueVar) + valueVar) // returns [1, 9]
+// {'greeting': 'hello', 'farewell': 'goodbye'}
+// .transformList(k, _, k) // returns ['greeting', 'farewell']
+// {'greeting': 'hello', 'farewell': 'goodbye'}
+// .transformList(_, v, v) // returns ['hello', 'goodbye']
+//
+// # TransformMap
+//
+// Comprehension which converts a map or a list into a map value. The output expression
+// of the comprehension determines the value of the output map entry; however, the key
+// remains fixed. Elements in the map may optionally be filtered according to a predicate
+// expression, where elements that satisfy the predicate are transformed.
+//
+// <list>.transformMap(indexVar, valueVar, <transform>)
+// <list>.transformMap(indexVar, valueVar, <filter>, <transform>)
+// <map>.transformMap(keyVar, valueVar, <transform>)
+// <map>.transformMap(keyVar, valueVar, <filter>, <transform>)
+//
+// Examples:
+//
+// [1, 2, 3].transformMap(indexVar, valueVar,
+// (indexVar * valueVar) + valueVar) // returns {0: 1, 1: 4, 2: 9}
+// [1, 2, 3].transformMap(indexVar, valueVar, indexVar % 2 == 0
+// (indexVar * valueVar) + valueVar) // returns {0: 1, 2: 9}
+// {'greeting': 'hello'}.transformMap(k, v, v + '!') // returns {'greeting': 'hello!'}
+//
+// # TransformMapEntry
+//
+// Comprehension which converts a map or a list into a map value; however, this transform
+// expects the entry expression be a map literal. If the tranform produces an entry which
+// duplicates a key in the target map, the comprehension will error. Note, that key
+// equality is determined using CEL equality which asserts that numeric values which are
+// equal, even if they don't have the same type will cause a key collision.
+//
+// Elements in the map may optionally be filtered according to a predicate expression, where
+// elements that satisfy the predicate are transformed.
+//
+// <list>.transformMap(indexVar, valueVar, <transform>)
+// <list>.transformMap(indexVar, valueVar, <filter>, <transform>)
+// <map>.transformMap(keyVar, valueVar, <transform>)
+// <map>.transformMap(keyVar, valueVar, <filter>, <transform>)
+//
+// Examples:
+//
+// // returns {'hello': 'greeting'}
+// {'greeting': 'hello'}.transformMapEntry(keyVar, valueVar, {valueVar: keyVar})
+// // reverse lookup, require all values in list be unique
+// [1, 2, 3].transformMapEntry(indexVar, valueVar, {valueVar: indexVar})
+//
+// {'greeting': 'aloha', 'farewell': 'aloha'}
+// .transformMapEntry(keyVar, valueVar, {valueVar: keyVar}) // error, duplicate key
+func TwoVarComprehensions() cel.EnvOption {
+ return cel.Lib(compreV2Lib{})
+}
+
+type compreV2Lib struct{}
+
+// LibraryName implements that SingletonLibrary interface method.
+func (compreV2Lib) LibraryName() string {
+ return "cel.lib.ext.comprev2"
+}
+
+// CompileOptions implements the cel.Library interface method.
+func (compreV2Lib) CompileOptions() []cel.EnvOption {
+ kType := cel.TypeParamType("K")
+ vType := cel.TypeParamType("V")
+ mapKVType := cel.MapType(kType, vType)
+ opts := []cel.EnvOption{
+ cel.Macros(
+ cel.ReceiverMacro("all", 3, quantifierAll),
+ cel.ReceiverMacro("exists", 3, quantifierExists),
+ cel.ReceiverMacro("existsOne", 3, quantifierExistsOne),
+ cel.ReceiverMacro("exists_one", 3, quantifierExistsOne),
+ cel.ReceiverMacro("transformList", 3, transformList),
+ cel.ReceiverMacro("transformList", 4, transformList),
+ cel.ReceiverMacro("transformMap", 3, transformMap),
+ cel.ReceiverMacro("transformMap", 4, transformMap),
+ cel.ReceiverMacro("transformMapEntry", 3, transformMapEntry),
+ cel.ReceiverMacro("transformMapEntry", 4, transformMapEntry),
+ ),
+ cel.Function(mapInsert,
+ cel.Overload(mapInsertOverloadKeyValue, []*cel.Type{mapKVType, kType, vType}, mapKVType,
+ cel.FunctionBinding(func(args ...ref.Val) ref.Val {
+ m := args[0].(traits.Mapper)
+ k := args[1]
+ v := args[2]
+ return types.InsertMapKeyValue(m, k, v)
+ })),
+ cel.Overload(mapInsertOverloadMap, []*cel.Type{mapKVType, mapKVType}, mapKVType,
+ cel.BinaryBinding(func(targetMap, updateMap ref.Val) ref.Val {
+ tm := targetMap.(traits.Mapper)
+ um := updateMap.(traits.Mapper)
+ umIt := um.Iterator()
+ for umIt.HasNext() == types.True {
+ k := umIt.Next()
+ updateOrErr := types.InsertMapKeyValue(tm, k, um.Get(k))
+ if types.IsError(updateOrErr) {
+ return updateOrErr
+ }
+ tm = updateOrErr.(traits.Mapper)
+ }
+ return tm
+ })),
+ ),
+ }
+ return opts
+}
+
+// ProgramOptions implements the cel.Library interface method
+func (compreV2Lib) ProgramOptions() []cel.ProgramOption {
+ return []cel.ProgramOption{}
+}
+
+func quantifierAll(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
+ iterVar1, iterVar2, err := extractIterVars(mef, args[0], args[1])
+ if err != nil {
+ return nil, err
+ }
+
+ return mef.NewComprehensionTwoVar(
+ target,
+ iterVar1,
+ iterVar2,
+ parser.AccumulatorName,
+ /*accuInit=*/ mef.NewLiteral(types.True),
+ /*condition=*/ mef.NewCall(operators.NotStrictlyFalse, mef.NewAccuIdent()),
+ /*step=*/ mef.NewCall(operators.LogicalAnd, mef.NewAccuIdent(), args[2]),
+ /*result=*/ mef.NewAccuIdent(),
+ ), nil
+}
+
+func quantifierExists(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
+ iterVar1, iterVar2, err := extractIterVars(mef, args[0], args[1])
+ if err != nil {
+ return nil, err
+ }
+
+ return mef.NewComprehensionTwoVar(
+ target,
+ iterVar1,
+ iterVar2,
+ parser.AccumulatorName,
+ /*accuInit=*/ mef.NewLiteral(types.False),
+ /*condition=*/ mef.NewCall(operators.NotStrictlyFalse, mef.NewCall(operators.LogicalNot, mef.NewAccuIdent())),
+ /*step=*/ mef.NewCall(operators.LogicalOr, mef.NewAccuIdent(), args[2]),
+ /*result=*/ mef.NewAccuIdent(),
+ ), nil
+}
+
+func quantifierExistsOne(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
+ iterVar1, iterVar2, err := extractIterVars(mef, args[0], args[1])
+ if err != nil {
+ return nil, err
+ }
+
+ return mef.NewComprehensionTwoVar(
+ target,
+ iterVar1,
+ iterVar2,
+ parser.AccumulatorName,
+ /*accuInit=*/ mef.NewLiteral(types.Int(0)),
+ /*condition=*/ mef.NewLiteral(types.True),
+ /*step=*/ mef.NewCall(operators.Conditional, args[2],
+ mef.NewCall(operators.Add, mef.NewAccuIdent(), mef.NewLiteral(types.Int(1))),
+ mef.NewAccuIdent()),
+ /*result=*/ mef.NewCall(operators.Equals, mef.NewAccuIdent(), mef.NewLiteral(types.Int(1))),
+ ), nil
+}
+
+func transformList(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
+ iterVar1, iterVar2, err := extractIterVars(mef, args[0], args[1])
+ if err != nil {
+ return nil, err
+ }
+
+ var transform ast.Expr
+ var filter ast.Expr
+ if len(args) == 4 {
+ filter = args[2]
+ transform = args[3]
+ } else {
+ filter = nil
+ transform = args[2]
+ }
+
+ // __result__ = __result__ + [transform]
+ step := mef.NewCall(operators.Add, mef.NewAccuIdent(), mef.NewList(transform))
+ if filter != nil {
+ // __result__ = (filter) ? __result__ + [transform] : __result__
+ step = mef.NewCall(operators.Conditional, filter, step, mef.NewAccuIdent())
+ }
+
+ return mef.NewComprehensionTwoVar(
+ target,
+ iterVar1,
+ iterVar2,
+ parser.AccumulatorName,
+ /*accuInit=*/ mef.NewList(),
+ /*condition=*/ mef.NewLiteral(types.True),
+ step,
+ /*result=*/ mef.NewAccuIdent(),
+ ), nil
+}
+
+func transformMap(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
+ iterVar1, iterVar2, err := extractIterVars(mef, args[0], args[1])
+ if err != nil {
+ return nil, err
+ }
+
+ var transform ast.Expr
+ var filter ast.Expr
+ if len(args) == 4 {
+ filter = args[2]
+ transform = args[3]
+ } else {
+ filter = nil
+ transform = args[2]
+ }
+
+ // __result__ = cel.@mapInsert(__result__, iterVar1, transform)
+ step := mef.NewCall(mapInsert, mef.NewAccuIdent(), mef.NewIdent(iterVar1), transform)
+ if filter != nil {
+ // __result__ = (filter) ? cel.@mapInsert(__result__, iterVar1, transform) : __result__
+ step = mef.NewCall(operators.Conditional, filter, step, mef.NewAccuIdent())
+ }
+ return mef.NewComprehensionTwoVar(
+ target,
+ iterVar1,
+ iterVar2,
+ parser.AccumulatorName,
+ /*accuInit=*/ mef.NewMap(),
+ /*condition=*/ mef.NewLiteral(types.True),
+ step,
+ /*result=*/ mef.NewAccuIdent(),
+ ), nil
+}
+
+func transformMapEntry(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
+ iterVar1, iterVar2, err := extractIterVars(mef, args[0], args[1])
+ if err != nil {
+ return nil, err
+ }
+
+ var transform ast.Expr
+ var filter ast.Expr
+ if len(args) == 4 {
+ filter = args[2]
+ transform = args[3]
+ } else {
+ filter = nil
+ transform = args[2]
+ }
+
+ // __result__ = cel.@mapInsert(__result__, transform)
+ step := mef.NewCall(mapInsert, mef.NewAccuIdent(), transform)
+ if filter != nil {
+ // __result__ = (filter) ? cel.@mapInsert(__result__, transform) : __result__
+ step = mef.NewCall(operators.Conditional, filter, step, mef.NewAccuIdent())
+ }
+ return mef.NewComprehensionTwoVar(
+ target,
+ iterVar1,
+ iterVar2,
+ parser.AccumulatorName,
+ /*accuInit=*/ mef.NewMap(),
+ /*condition=*/ mef.NewLiteral(types.True),
+ step,
+ /*result=*/ mef.NewAccuIdent(),
+ ), nil
+}
+
+func extractIterVars(mef cel.MacroExprFactory, arg0, arg1 ast.Expr) (string, string, *cel.Error) {
+ iterVar1, err := extractIterVar(mef, arg0)
+ if err != nil {
+ return "", "", err
+ }
+ iterVar2, err := extractIterVar(mef, arg1)
+ if err != nil {
+ return "", "", err
+ }
+ if iterVar1 == iterVar2 {
+ return "", "", mef.NewError(arg1.ID(), fmt.Sprintf("duplicate variable name: %s", iterVar1))
+ }
+ if iterVar1 == parser.AccumulatorName {
+ return "", "", mef.NewError(arg0.ID(), "iteration variable overwrites accumulator variable")
+ }
+ if iterVar2 == parser.AccumulatorName {
+ return "", "", mef.NewError(arg1.ID(), "iteration variable overwrites accumulator variable")
+ }
+ return iterVar1, iterVar2, nil
+}
+
+func extractIterVar(mef cel.MacroExprFactory, target ast.Expr) (string, *cel.Error) {
+ iterVar, found := extractIdent(target)
+ if !found {
+ return "", mef.NewError(target.ID(), "argument must be a simple name")
+ }
+ return iterVar, nil
+}
diff --git a/vendor/github.com/google/cel-go/ext/encoders.go b/vendor/github.com/google/cel-go/ext/encoders.go
index d9f9cb5..ac04b1a 100644
--- a/vendor/github.com/google/cel-go/ext/encoders.go
+++ b/vendor/github.com/google/cel-go/ext/encoders.go
@@ -16,7 +16,6 @@ package ext
import (
"encoding/base64"
- "reflect"
"github.com/google/cel-go/cel"
"github.com/google/cel-go/common/types"
@@ -37,7 +36,7 @@ import (
// Examples:
//
// base64.decode('aGVsbG8=') // return b'hello'
-// base64.decode('aGVsbG8') // error
+// base64.decode('aGVsbG8') // return b'hello'
//
// # Base64.Encode
//
@@ -80,13 +79,16 @@ func (encoderLib) ProgramOptions() []cel.ProgramOption {
}
func base64DecodeString(str string) ([]byte, error) {
- return base64.StdEncoding.DecodeString(str)
+ b, err := base64.StdEncoding.DecodeString(str)
+ if err == nil {
+ return b, nil
+ }
+ if _, tryAltEncoding := err.(base64.CorruptInputError); tryAltEncoding {
+ return base64.RawStdEncoding.DecodeString(str)
+ }
+ return nil, err
}
func base64EncodeBytes(bytes []byte) (string, error) {
return base64.StdEncoding.EncodeToString(bytes), nil
}
-
-var (
- bytesListType = reflect.TypeOf([]byte{})
-)
diff --git a/vendor/github.com/google/cel-go/ext/formatting.go b/vendor/github.com/google/cel-go/ext/formatting.go
new file mode 100644
index 0000000..dbff613
--- /dev/null
+++ b/vendor/github.com/google/cel-go/ext/formatting.go
@@ -0,0 +1,904 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ext
+
+import (
+ "errors"
+ "fmt"
+ "math"
+ "sort"
+ "strconv"
+ "strings"
+ "unicode"
+
+ "golang.org/x/text/language"
+ "golang.org/x/text/message"
+
+ "github.com/google/cel-go/cel"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/overloads"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+ "github.com/google/cel-go/common/types/traits"
+)
+
+type clauseImpl func(ref.Val, string) (string, error)
+
+func clauseForType(argType ref.Type) (clauseImpl, error) {
+ switch argType {
+ case types.IntType, types.UintType:
+ return formatDecimal, nil
+ case types.StringType, types.BytesType, types.BoolType, types.NullType, types.TypeType:
+ return FormatString, nil
+ case types.TimestampType, types.DurationType:
+ // special case to ensure timestamps/durations get printed as CEL literals
+ return func(arg ref.Val, locale string) (string, error) {
+ argStrVal := arg.ConvertToType(types.StringType)
+ argStr := argStrVal.Value().(string)
+ if arg.Type() == types.TimestampType {
+ return fmt.Sprintf("timestamp(%q)", argStr), nil
+ }
+ if arg.Type() == types.DurationType {
+ return fmt.Sprintf("duration(%q)", argStr), nil
+ }
+ return "", fmt.Errorf("cannot convert argument of type %s to timestamp/duration", arg.Type().TypeName())
+ }, nil
+ case types.ListType:
+ return formatList, nil
+ case types.MapType:
+ return formatMap, nil
+ case types.DoubleType:
+ // avoid formatFixed so we can output a period as the decimal separator in order
+ // to always be a valid CEL literal
+ return func(arg ref.Val, locale string) (string, error) {
+ argDouble, ok := arg.Value().(float64)
+ if !ok {
+ return "", fmt.Errorf("couldn't convert %s to float64", arg.Type().TypeName())
+ }
+ fmtStr := fmt.Sprintf("%%.%df", defaultPrecision)
+ return fmt.Sprintf(fmtStr, argDouble), nil
+ }, nil
+ case types.TypeType:
+ return func(arg ref.Val, locale string) (string, error) {
+ return fmt.Sprintf("type(%s)", arg.Value().(string)), nil
+ }, nil
+ default:
+ return nil, fmt.Errorf("no formatting function for %s", argType.TypeName())
+ }
+}
+
+func formatList(arg ref.Val, locale string) (string, error) {
+ argList := arg.(traits.Lister)
+ argIterator := argList.Iterator()
+ var listStrBuilder strings.Builder
+ _, err := listStrBuilder.WriteRune('[')
+ if err != nil {
+ return "", fmt.Errorf("error writing to list string: %w", err)
+ }
+ for argIterator.HasNext() == types.True {
+ member := argIterator.Next()
+ memberFormat, err := clauseForType(member.Type())
+ if err != nil {
+ return "", err
+ }
+ unquotedStr, err := memberFormat(member, locale)
+ if err != nil {
+ return "", err
+ }
+ str := quoteForCEL(member, unquotedStr)
+ _, err = listStrBuilder.WriteString(str)
+ if err != nil {
+ return "", fmt.Errorf("error writing to list string: %w", err)
+ }
+ if argIterator.HasNext() == types.True {
+ _, err = listStrBuilder.WriteString(", ")
+ if err != nil {
+ return "", fmt.Errorf("error writing to list string: %w", err)
+ }
+ }
+ }
+ _, err = listStrBuilder.WriteRune(']')
+ if err != nil {
+ return "", fmt.Errorf("error writing to list string: %w", err)
+ }
+ return listStrBuilder.String(), nil
+}
+
+func formatMap(arg ref.Val, locale string) (string, error) {
+ argMap := arg.(traits.Mapper)
+ argIterator := argMap.Iterator()
+ type mapPair struct {
+ key string
+ value string
+ }
+ argPairs := make([]mapPair, argMap.Size().Value().(int64))
+ i := 0
+ for argIterator.HasNext() == types.True {
+ key := argIterator.Next()
+ var keyFormat clauseImpl
+ switch key.Type() {
+ case types.StringType, types.BoolType:
+ keyFormat = FormatString
+ case types.IntType, types.UintType:
+ keyFormat = formatDecimal
+ default:
+ return "", fmt.Errorf("no formatting function for map key of type %s", key.Type().TypeName())
+ }
+ unquotedKeyStr, err := keyFormat(key, locale)
+ if err != nil {
+ return "", err
+ }
+ keyStr := quoteForCEL(key, unquotedKeyStr)
+ value, found := argMap.Find(key)
+ if !found {
+ return "", fmt.Errorf("could not find key: %q", key)
+ }
+ valueFormat, err := clauseForType(value.Type())
+ if err != nil {
+ return "", err
+ }
+ unquotedValueStr, err := valueFormat(value, locale)
+ if err != nil {
+ return "", err
+ }
+ valueStr := quoteForCEL(value, unquotedValueStr)
+ argPairs[i] = mapPair{keyStr, valueStr}
+ i++
+ }
+ sort.SliceStable(argPairs, func(x, y int) bool {
+ return argPairs[x].key < argPairs[y].key
+ })
+ var mapStrBuilder strings.Builder
+ _, err := mapStrBuilder.WriteRune('{')
+ if err != nil {
+ return "", fmt.Errorf("error writing to map string: %w", err)
+ }
+ for i, entry := range argPairs {
+ _, err = mapStrBuilder.WriteString(fmt.Sprintf("%s:%s", entry.key, entry.value))
+ if err != nil {
+ return "", fmt.Errorf("error writing to map string: %w", err)
+ }
+ if i < len(argPairs)-1 {
+ _, err = mapStrBuilder.WriteString(", ")
+ if err != nil {
+ return "", fmt.Errorf("error writing to map string: %w", err)
+ }
+ }
+ }
+ _, err = mapStrBuilder.WriteRune('}')
+ if err != nil {
+ return "", fmt.Errorf("error writing to map string: %w", err)
+ }
+ return mapStrBuilder.String(), nil
+}
+
+// quoteForCEL takes a formatted, unquoted value and quotes it in a manner suitable
+// for embedding directly in CEL.
+func quoteForCEL(refVal ref.Val, unquotedValue string) string {
+ switch refVal.Type() {
+ case types.StringType:
+ return fmt.Sprintf("%q", unquotedValue)
+ case types.BytesType:
+ return fmt.Sprintf("b%q", unquotedValue)
+ case types.DoubleType:
+ // special case to handle infinity/NaN
+ num := refVal.Value().(float64)
+ if math.IsInf(num, 1) || math.IsInf(num, -1) || math.IsNaN(num) {
+ return fmt.Sprintf("%q", unquotedValue)
+ }
+ return unquotedValue
+ default:
+ return unquotedValue
+ }
+}
+
+// FormatString returns the string representation of a CEL value.
+//
+// It is used to implement the %s specifier in the (string).format() extension function.
+func FormatString(arg ref.Val, locale string) (string, error) {
+ switch arg.Type() {
+ case types.ListType:
+ return formatList(arg, locale)
+ case types.MapType:
+ return formatMap(arg, locale)
+ case types.IntType, types.UintType, types.DoubleType,
+ types.BoolType, types.StringType, types.TimestampType, types.BytesType, types.DurationType, types.TypeType:
+ argStrVal := arg.ConvertToType(types.StringType)
+ argStr, ok := argStrVal.Value().(string)
+ if !ok {
+ return "", fmt.Errorf("could not convert argument %q to string", argStrVal)
+ }
+ return argStr, nil
+ case types.NullType:
+ return "null", nil
+ default:
+ return "", stringFormatError(runtimeID, arg.Type().TypeName())
+ }
+}
+
+func formatDecimal(arg ref.Val, locale string) (string, error) {
+ switch arg.Type() {
+ case types.IntType:
+ argInt, ok := arg.ConvertToType(types.IntType).Value().(int64)
+ if !ok {
+ return "", fmt.Errorf("could not convert \"%s\" to int64", arg.Value())
+ }
+ return fmt.Sprintf("%d", argInt), nil
+ case types.UintType:
+ argInt, ok := arg.ConvertToType(types.UintType).Value().(uint64)
+ if !ok {
+ return "", fmt.Errorf("could not convert \"%s\" to uint64", arg.Value())
+ }
+ return fmt.Sprintf("%d", argInt), nil
+ default:
+ return "", decimalFormatError(runtimeID, arg.Type().TypeName())
+ }
+}
+
+func matchLanguage(locale string) (language.Tag, error) {
+ matcher, err := makeMatcher(locale)
+ if err != nil {
+ return language.Und, err
+ }
+ tag, _ := language.MatchStrings(matcher, locale)
+ return tag, nil
+}
+
+func makeMatcher(locale string) (language.Matcher, error) {
+ tags := make([]language.Tag, 0)
+ tag, err := language.Parse(locale)
+ if err != nil {
+ return nil, err
+ }
+ tags = append(tags, tag)
+ return language.NewMatcher(tags), nil
+}
+
+type stringFormatter struct{}
+
+func (c *stringFormatter) String(arg ref.Val, locale string) (string, error) {
+ return FormatString(arg, locale)
+}
+
+func (c *stringFormatter) Decimal(arg ref.Val, locale string) (string, error) {
+ return formatDecimal(arg, locale)
+}
+
+func (c *stringFormatter) Fixed(precision *int) func(ref.Val, string) (string, error) {
+ if precision == nil {
+ precision = new(int)
+ *precision = defaultPrecision
+ }
+ return func(arg ref.Val, locale string) (string, error) {
+ strException := false
+ if arg.Type() == types.StringType {
+ argStr := arg.Value().(string)
+ if argStr == "NaN" || argStr == "Infinity" || argStr == "-Infinity" {
+ strException = true
+ }
+ }
+ if arg.Type() != types.DoubleType && !strException {
+ return "", fixedPointFormatError(runtimeID, arg.Type().TypeName())
+ }
+ argFloatVal := arg.ConvertToType(types.DoubleType)
+ argFloat, ok := argFloatVal.Value().(float64)
+ if !ok {
+ return "", fmt.Errorf("could not convert \"%s\" to float64", argFloatVal.Value())
+ }
+ fmtStr := fmt.Sprintf("%%.%df", *precision)
+
+ matchedLocale, err := matchLanguage(locale)
+ if err != nil {
+ return "", fmt.Errorf("error matching locale: %w", err)
+ }
+ return message.NewPrinter(matchedLocale).Sprintf(fmtStr, argFloat), nil
+ }
+}
+
+func (c *stringFormatter) Scientific(precision *int) func(ref.Val, string) (string, error) {
+ if precision == nil {
+ precision = new(int)
+ *precision = defaultPrecision
+ }
+ return func(arg ref.Val, locale string) (string, error) {
+ strException := false
+ if arg.Type() == types.StringType {
+ argStr := arg.Value().(string)
+ if argStr == "NaN" || argStr == "Infinity" || argStr == "-Infinity" {
+ strException = true
+ }
+ }
+ if arg.Type() != types.DoubleType && !strException {
+ return "", scientificFormatError(runtimeID, arg.Type().TypeName())
+ }
+ argFloatVal := arg.ConvertToType(types.DoubleType)
+ argFloat, ok := argFloatVal.Value().(float64)
+ if !ok {
+ return "", fmt.Errorf("could not convert \"%v\" to float64", argFloatVal.Value())
+ }
+ matchedLocale, err := matchLanguage(locale)
+ if err != nil {
+ return "", fmt.Errorf("error matching locale: %w", err)
+ }
+ fmtStr := fmt.Sprintf("%%%de", *precision)
+ return message.NewPrinter(matchedLocale).Sprintf(fmtStr, argFloat), nil
+ }
+}
+
+func (c *stringFormatter) Binary(arg ref.Val, locale string) (string, error) {
+ switch arg.Type() {
+ case types.IntType:
+ argInt := arg.Value().(int64)
+ // locale is intentionally unused as integers formatted as binary
+ // strings are locale-independent
+ return fmt.Sprintf("%b", argInt), nil
+ case types.UintType:
+ argInt := arg.Value().(uint64)
+ return fmt.Sprintf("%b", argInt), nil
+ case types.BoolType:
+ argBool := arg.Value().(bool)
+ if argBool {
+ return "1", nil
+ }
+ return "0", nil
+ default:
+ return "", binaryFormatError(runtimeID, arg.Type().TypeName())
+ }
+}
+
+func (c *stringFormatter) Hex(useUpper bool) func(ref.Val, string) (string, error) {
+ return func(arg ref.Val, locale string) (string, error) {
+ fmtStr := "%x"
+ if useUpper {
+ fmtStr = "%X"
+ }
+ switch arg.Type() {
+ case types.StringType, types.BytesType:
+ if arg.Type() == types.BytesType {
+ return fmt.Sprintf(fmtStr, arg.Value().([]byte)), nil
+ }
+ return fmt.Sprintf(fmtStr, arg.Value().(string)), nil
+ case types.IntType:
+ argInt, ok := arg.Value().(int64)
+ if !ok {
+ return "", fmt.Errorf("could not convert \"%s\" to int64", arg.Value())
+ }
+ return fmt.Sprintf(fmtStr, argInt), nil
+ case types.UintType:
+ argInt, ok := arg.Value().(uint64)
+ if !ok {
+ return "", fmt.Errorf("could not convert \"%s\" to uint64", arg.Value())
+ }
+ return fmt.Sprintf(fmtStr, argInt), nil
+ default:
+ return "", hexFormatError(runtimeID, arg.Type().TypeName())
+ }
+ }
+}
+
+func (c *stringFormatter) Octal(arg ref.Val, locale string) (string, error) {
+ switch arg.Type() {
+ case types.IntType:
+ argInt := arg.Value().(int64)
+ return fmt.Sprintf("%o", argInt), nil
+ case types.UintType:
+ argInt := arg.Value().(uint64)
+ return fmt.Sprintf("%o", argInt), nil
+ default:
+ return "", octalFormatError(runtimeID, arg.Type().TypeName())
+ }
+}
+
+// stringFormatValidator implements the cel.ASTValidator interface allowing for static validation
+// of string.format calls.
+type stringFormatValidator struct{}
+
+// Name returns the name of the validator.
+func (stringFormatValidator) Name() string {
+ return "cel.lib.ext.validate.functions.string.format"
+}
+
+// Configure implements the ASTValidatorConfigurer interface and augments the list of functions to skip
+// during homogeneous aggregate literal type-checks.
+func (stringFormatValidator) Configure(config cel.MutableValidatorConfig) error {
+ functions := config.GetOrDefault(cel.HomogeneousAggregateLiteralExemptFunctions, []string{}).([]string)
+ functions = append(functions, "format")
+ return config.Set(cel.HomogeneousAggregateLiteralExemptFunctions, functions)
+}
+
+// Validate parses all literal format strings and type checks the format clause against the argument
+// at the corresponding ordinal within the list literal argument to the function, if one is specified.
+func (stringFormatValidator) Validate(env *cel.Env, _ cel.ValidatorConfig, a *ast.AST, iss *cel.Issues) {
+ root := ast.NavigateAST(a)
+ formatCallExprs := ast.MatchDescendants(root, matchConstantFormatStringWithListLiteralArgs(a))
+ for _, e := range formatCallExprs {
+ call := e.AsCall()
+ formatStr := call.Target().AsLiteral().Value().(string)
+ args := call.Args()[0].AsList().Elements()
+ formatCheck := &stringFormatChecker{
+ args: args,
+ ast: a,
+ }
+ // use a placeholder locale, since locale doesn't affect syntax
+ _, err := parseFormatString(formatStr, formatCheck, formatCheck, "en_US")
+ if err != nil {
+ iss.ReportErrorAtID(getErrorExprID(e.ID(), err), err.Error())
+ continue
+ }
+ seenArgs := formatCheck.argsRequested
+ if len(args) > seenArgs {
+ iss.ReportErrorAtID(e.ID(),
+ "too many arguments supplied to string.format (expected %d, got %d)", seenArgs, len(args))
+ }
+ }
+}
+
+// getErrorExprID determines which list literal argument triggered a type-disagreement for the
+// purposes of more accurate error message reports.
+func getErrorExprID(id int64, err error) int64 {
+ fmtErr, ok := err.(formatError)
+ if ok {
+ return fmtErr.id
+ }
+ wrapped := errors.Unwrap(err)
+ if wrapped != nil {
+ return getErrorExprID(id, wrapped)
+ }
+ return id
+}
+
+// matchConstantFormatStringWithListLiteralArgs matches all valid expression nodes for string
+// format checking.
+func matchConstantFormatStringWithListLiteralArgs(a *ast.AST) ast.ExprMatcher {
+ return func(e ast.NavigableExpr) bool {
+ if e.Kind() != ast.CallKind {
+ return false
+ }
+ call := e.AsCall()
+ if !call.IsMemberFunction() || call.FunctionName() != "format" {
+ return false
+ }
+ overloadIDs := a.GetOverloadIDs(e.ID())
+ if len(overloadIDs) != 0 {
+ found := false
+ for _, overload := range overloadIDs {
+ if overload == overloads.ExtFormatString {
+ found = true
+ break
+ }
+ }
+ if !found {
+ return false
+ }
+ }
+ formatString := call.Target()
+ if formatString.Kind() != ast.LiteralKind || formatString.AsLiteral().Type() != cel.StringType {
+ return false
+ }
+ args := call.Args()
+ if len(args) != 1 {
+ return false
+ }
+ formatArgs := args[0]
+ return formatArgs.Kind() == ast.ListKind
+ }
+}
+
+// stringFormatChecker implements the formatStringInterpolater interface
+type stringFormatChecker struct {
+ args []ast.Expr
+ argsRequested int
+ currArgIndex int64
+ ast *ast.AST
+}
+
+func (c *stringFormatChecker) String(arg ref.Val, locale string) (string, error) {
+ formatArg := c.args[c.currArgIndex]
+ valid, badID := c.verifyString(formatArg)
+ if !valid {
+ return "", stringFormatError(badID, c.typeOf(badID).TypeName())
+ }
+ return "", nil
+}
+
+func (c *stringFormatChecker) Decimal(arg ref.Val, locale string) (string, error) {
+ id := c.args[c.currArgIndex].ID()
+ valid := c.verifyTypeOneOf(id, types.IntType, types.UintType)
+ if !valid {
+ return "", decimalFormatError(id, c.typeOf(id).TypeName())
+ }
+ return "", nil
+}
+
+func (c *stringFormatChecker) Fixed(precision *int) func(ref.Val, string) (string, error) {
+ return func(arg ref.Val, locale string) (string, error) {
+ id := c.args[c.currArgIndex].ID()
+ // we allow StringType since "NaN", "Infinity", and "-Infinity" are also valid values
+ valid := c.verifyTypeOneOf(id, types.DoubleType, types.StringType)
+ if !valid {
+ return "", fixedPointFormatError(id, c.typeOf(id).TypeName())
+ }
+ return "", nil
+ }
+}
+
+func (c *stringFormatChecker) Scientific(precision *int) func(ref.Val, string) (string, error) {
+ return func(arg ref.Val, locale string) (string, error) {
+ id := c.args[c.currArgIndex].ID()
+ valid := c.verifyTypeOneOf(id, types.DoubleType, types.StringType)
+ if !valid {
+ return "", scientificFormatError(id, c.typeOf(id).TypeName())
+ }
+ return "", nil
+ }
+}
+
+func (c *stringFormatChecker) Binary(arg ref.Val, locale string) (string, error) {
+ id := c.args[c.currArgIndex].ID()
+ valid := c.verifyTypeOneOf(id, types.IntType, types.UintType, types.BoolType)
+ if !valid {
+ return "", binaryFormatError(id, c.typeOf(id).TypeName())
+ }
+ return "", nil
+}
+
+func (c *stringFormatChecker) Hex(useUpper bool) func(ref.Val, string) (string, error) {
+ return func(arg ref.Val, locale string) (string, error) {
+ id := c.args[c.currArgIndex].ID()
+ valid := c.verifyTypeOneOf(id, types.IntType, types.UintType, types.StringType, types.BytesType)
+ if !valid {
+ return "", hexFormatError(id, c.typeOf(id).TypeName())
+ }
+ return "", nil
+ }
+}
+
+func (c *stringFormatChecker) Octal(arg ref.Val, locale string) (string, error) {
+ id := c.args[c.currArgIndex].ID()
+ valid := c.verifyTypeOneOf(id, types.IntType, types.UintType)
+ if !valid {
+ return "", octalFormatError(id, c.typeOf(id).TypeName())
+ }
+ return "", nil
+}
+
+func (c *stringFormatChecker) Arg(index int64) (ref.Val, error) {
+ c.argsRequested++
+ c.currArgIndex = index
+ // return a dummy value - this is immediately passed to back to us
+ // through one of the FormatCallback functions, so anything will do
+ return types.Int(0), nil
+}
+
+func (c *stringFormatChecker) Size() int64 {
+ return int64(len(c.args))
+}
+
+func (c *stringFormatChecker) typeOf(id int64) *cel.Type {
+ return c.ast.GetType(id)
+}
+
+func (c *stringFormatChecker) verifyTypeOneOf(id int64, validTypes ...*cel.Type) bool {
+ t := c.typeOf(id)
+ if t == cel.DynType {
+ return true
+ }
+ for _, vt := range validTypes {
+ // Only check runtime type compatibility without delving deeper into parameterized types
+ if t.Kind() == vt.Kind() {
+ return true
+ }
+ }
+ return false
+}
+
+func (c *stringFormatChecker) verifyString(sub ast.Expr) (bool, int64) {
+ paramA := cel.TypeParamType("A")
+ paramB := cel.TypeParamType("B")
+ subVerified := c.verifyTypeOneOf(sub.ID(),
+ cel.ListType(paramA), cel.MapType(paramA, paramB),
+ cel.IntType, cel.UintType, cel.DoubleType, cel.BoolType, cel.StringType,
+ cel.TimestampType, cel.BytesType, cel.DurationType, cel.TypeType, cel.NullType)
+ if !subVerified {
+ return false, sub.ID()
+ }
+ switch sub.Kind() {
+ case ast.ListKind:
+ for _, e := range sub.AsList().Elements() {
+ // recursively verify if we're dealing with a list/map
+ verified, id := c.verifyString(e)
+ if !verified {
+ return false, id
+ }
+ }
+ return true, sub.ID()
+ case ast.MapKind:
+ for _, e := range sub.AsMap().Entries() {
+ // recursively verify if we're dealing with a list/map
+ entry := e.AsMapEntry()
+ verified, id := c.verifyString(entry.Key())
+ if !verified {
+ return false, id
+ }
+ verified, id = c.verifyString(entry.Value())
+ if !verified {
+ return false, id
+ }
+ }
+ return true, sub.ID()
+ default:
+ return true, sub.ID()
+ }
+}
+
+// helper routines for reporting common errors during string formatting static validation and
+// runtime execution.
+
+func binaryFormatError(id int64, badType string) error {
+ return newFormatError(id, "only integers and bools can be formatted as binary, was given %s", badType)
+}
+
+func decimalFormatError(id int64, badType string) error {
+ return newFormatError(id, "decimal clause can only be used on integers, was given %s", badType)
+}
+
+func fixedPointFormatError(id int64, badType string) error {
+ return newFormatError(id, "fixed-point clause can only be used on doubles, was given %s", badType)
+}
+
+func hexFormatError(id int64, badType string) error {
+ return newFormatError(id, "only integers, byte buffers, and strings can be formatted as hex, was given %s", badType)
+}
+
+func octalFormatError(id int64, badType string) error {
+ return newFormatError(id, "octal clause can only be used on integers, was given %s", badType)
+}
+
+func scientificFormatError(id int64, badType string) error {
+ return newFormatError(id, "scientific clause can only be used on doubles, was given %s", badType)
+}
+
+func stringFormatError(id int64, badType string) error {
+ return newFormatError(id, "string clause can only be used on strings, bools, bytes, ints, doubles, maps, lists, types, durations, and timestamps, was given %s", badType)
+}
+
+type formatError struct {
+ id int64
+ msg string
+}
+
+func newFormatError(id int64, msg string, args ...any) error {
+ return formatError{
+ id: id,
+ msg: fmt.Sprintf(msg, args...),
+ }
+}
+
+func (e formatError) Error() string {
+ return e.msg
+}
+
+func (e formatError) Is(target error) bool {
+ return e.msg == target.Error()
+}
+
+// stringArgList implements the formatListArgs interface.
+type stringArgList struct {
+ args traits.Lister
+}
+
+func (c *stringArgList) Arg(index int64) (ref.Val, error) {
+ if index >= c.args.Size().Value().(int64) {
+ return nil, fmt.Errorf("index %d out of range", index)
+ }
+ return c.args.Get(types.Int(index)), nil
+}
+
+func (c *stringArgList) Size() int64 {
+ return c.args.Size().Value().(int64)
+}
+
+// formatStringInterpolator is an interface that allows user-defined behavior
+// for formatting clause implementations, as well as argument retrieval.
+// Each function is expected to support the appropriate types as laid out in
+// the string.format documentation, and to return an error if given an inappropriate type.
+type formatStringInterpolator interface {
+ // String takes a ref.Val and a string representing the current locale identifier
+ // and returns the Val formatted as a string, or an error if one occurred.
+ String(ref.Val, string) (string, error)
+
+ // Decimal takes a ref.Val and a string representing the current locale identifier
+ // and returns the Val formatted as a decimal integer, or an error if one occurred.
+ Decimal(ref.Val, string) (string, error)
+
+ // Fixed takes an int pointer representing precision (or nil if none was given) and
+ // returns a function operating in a similar manner to String and Decimal, taking a
+ // ref.Val and locale and returning the appropriate string. A closure is returned
+ // so precision can be set without needing an additional function call/configuration.
+ Fixed(*int) func(ref.Val, string) (string, error)
+
+ // Scientific functions identically to Fixed, except the string returned from the closure
+ // is expected to be in scientific notation.
+ Scientific(*int) func(ref.Val, string) (string, error)
+
+ // Binary takes a ref.Val and a string representing the current locale identifier
+ // and returns the Val formatted as a binary integer, or an error if one occurred.
+ Binary(ref.Val, string) (string, error)
+
+ // Hex takes a boolean that, if true, indicates the hex string output by the returned
+ // closure should use uppercase letters for A-F.
+ Hex(bool) func(ref.Val, string) (string, error)
+
+ // Octal takes a ref.Val and a string representing the current locale identifier and
+ // returns the Val formatted in octal, or an error if one occurred.
+ Octal(ref.Val, string) (string, error)
+}
+
+// formatListArgs is an interface that allows user-defined list-like datatypes to be used
+// for formatting clause implementations.
+type formatListArgs interface {
+ // Arg returns the ref.Val at the given index, or an error if one occurred.
+ Arg(int64) (ref.Val, error)
+
+ // Size returns the length of the argument list.
+ Size() int64
+}
+
+// parseFormatString formats a string according to the string.format syntax, taking the clause implementations
+// from the provided FormatCallback and the args from the given FormatList.
+func parseFormatString(formatStr string, callback formatStringInterpolator, list formatListArgs, locale string) (string, error) {
+ i := 0
+ argIndex := 0
+ var builtStr strings.Builder
+ for i < len(formatStr) {
+ if formatStr[i] == '%' {
+ if i+1 < len(formatStr) && formatStr[i+1] == '%' {
+ err := builtStr.WriteByte('%')
+ if err != nil {
+ return "", fmt.Errorf("error writing format string: %w", err)
+ }
+ i += 2
+ continue
+ } else {
+ argAny, err := list.Arg(int64(argIndex))
+ if err != nil {
+ return "", err
+ }
+ if i+1 >= len(formatStr) {
+ return "", errors.New("unexpected end of string")
+ }
+ if int64(argIndex) >= list.Size() {
+ return "", fmt.Errorf("index %d out of range", argIndex)
+ }
+ numRead, val, refErr := parseAndFormatClause(formatStr[i:], argAny, callback, list, locale)
+ if refErr != nil {
+ return "", refErr
+ }
+ _, err = builtStr.WriteString(val)
+ if err != nil {
+ return "", fmt.Errorf("error writing format string: %w", err)
+ }
+ i += numRead
+ argIndex++
+ }
+ } else {
+ err := builtStr.WriteByte(formatStr[i])
+ if err != nil {
+ return "", fmt.Errorf("error writing format string: %w", err)
+ }
+ i++
+ }
+ }
+ return builtStr.String(), nil
+}
+
+// parseAndFormatClause parses the format clause at the start of the given string with val, and returns
+// how many characters were consumed and the substituted string form of val, or an error if one occurred.
+func parseAndFormatClause(formatStr string, val ref.Val, callback formatStringInterpolator, list formatListArgs, locale string) (int, string, error) {
+ i := 1
+ read, formatter, err := parseFormattingClause(formatStr[i:], callback)
+ i += read
+ if err != nil {
+ return -1, "", newParseFormatError("could not parse formatting clause", err)
+ }
+
+ valStr, err := formatter(val, locale)
+ if err != nil {
+ return -1, "", newParseFormatError("error during formatting", err)
+ }
+ return i, valStr, nil
+}
+
+func parseFormattingClause(formatStr string, callback formatStringInterpolator) (int, clauseImpl, error) {
+ i := 0
+ read, precision, err := parsePrecision(formatStr[i:])
+ i += read
+ if err != nil {
+ return -1, nil, fmt.Errorf("error while parsing precision: %w", err)
+ }
+ r := rune(formatStr[i])
+ i++
+ switch r {
+ case 's':
+ return i, callback.String, nil
+ case 'd':
+ return i, callback.Decimal, nil
+ case 'f':
+ return i, callback.Fixed(precision), nil
+ case 'e':
+ return i, callback.Scientific(precision), nil
+ case 'b':
+ return i, callback.Binary, nil
+ case 'x', 'X':
+ return i, callback.Hex(unicode.IsUpper(r)), nil
+ case 'o':
+ return i, callback.Octal, nil
+ default:
+ return -1, nil, fmt.Errorf("unrecognized formatting clause \"%c\"", r)
+ }
+}
+
+func parsePrecision(formatStr string) (int, *int, error) {
+ i := 0
+ if formatStr[i] != '.' {
+ return i, nil, nil
+ }
+ i++
+ var buffer strings.Builder
+ for {
+ if i >= len(formatStr) {
+ return -1, nil, errors.New("could not find end of precision specifier")
+ }
+ if !isASCIIDigit(rune(formatStr[i])) {
+ break
+ }
+ buffer.WriteByte(formatStr[i])
+ i++
+ }
+ precision, err := strconv.Atoi(buffer.String())
+ if err != nil {
+ return -1, nil, fmt.Errorf("error while converting precision to integer: %w", err)
+ }
+ return i, &precision, nil
+}
+
+func isASCIIDigit(r rune) bool {
+ return r <= unicode.MaxASCII && unicode.IsDigit(r)
+}
+
+type parseFormatError struct {
+ msg string
+ wrapped error
+}
+
+func newParseFormatError(msg string, wrapped error) error {
+ return parseFormatError{msg: msg, wrapped: wrapped}
+}
+
+func (e parseFormatError) Error() string {
+ return fmt.Sprintf("%s: %s", e.msg, e.wrapped.Error())
+}
+
+func (e parseFormatError) Is(target error) bool {
+ return e.Error() == target.Error()
+}
+
+func (e parseFormatError) Unwrap() error {
+ return e.wrapped
+}
+
+const (
+ runtimeID = int64(-1)
+)
diff --git a/vendor/github.com/google/cel-go/ext/guards.go b/vendor/github.com/google/cel-go/ext/guards.go
index 4c7786a..ccede28 100644
--- a/vendor/github.com/google/cel-go/ext/guards.go
+++ b/vendor/github.com/google/cel-go/ext/guards.go
@@ -15,9 +15,9 @@
package ext
import (
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
// function invocation guards for common call signatures within extension functions.
@@ -50,14 +50,18 @@ func listStringOrError(strs []string, err error) ref.Val {
return types.DefaultTypeAdapter.NativeToValue(strs)
}
-func macroTargetMatchesNamespace(ns string, target *exprpb.Expr) bool {
- switch target.GetExprKind().(type) {
- case *exprpb.Expr_IdentExpr:
- if target.GetIdentExpr().GetName() != ns {
- return false
- }
- return true
+func extractIdent(target ast.Expr) (string, bool) {
+ switch target.Kind() {
+ case ast.IdentKind:
+ return target.AsIdent(), true
default:
- return false
+ return "", false
}
}
+
+func macroTargetMatchesNamespace(ns string, target ast.Expr) bool {
+ if id, found := extractIdent(target); found {
+ return id == ns
+ }
+ return false
+}
diff --git a/vendor/github.com/google/cel-go/ext/lists.go b/vendor/github.com/google/cel-go/ext/lists.go
new file mode 100644
index 0000000..d0b90ea
--- /dev/null
+++ b/vendor/github.com/google/cel-go/ext/lists.go
@@ -0,0 +1,560 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ext
+
+import (
+ "fmt"
+ "math"
+ "sort"
+
+ "github.com/google/cel-go/cel"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/decls"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
+ "github.com/google/cel-go/common/types/traits"
+ "github.com/google/cel-go/parser"
+)
+
+var comparableTypes = []*cel.Type{
+ cel.IntType,
+ cel.UintType,
+ cel.DoubleType,
+ cel.BoolType,
+ cel.DurationType,
+ cel.TimestampType,
+ cel.StringType,
+ cel.BytesType,
+}
+
+// Lists returns a cel.EnvOption to configure extended functions for list manipulation.
+// As a general note, all indices are zero-based.
+//
+// # Distinct
+//
+// Introduced in version: 2
+//
+// Returns the distinct elements of a list.
+//
+// <list(T)>.distinct() -> <list(T)>
+//
+// Examples:
+//
+// [1, 2, 2, 3, 3, 3].distinct() // return [1, 2, 3]
+// ["b", "b", "c", "a", "c"].distinct() // return ["b", "c", "a"]
+// [1, "b", 2, "b"].distinct() // return [1, "b", 2]
+//
+// # Range
+//
+// Introduced in version: 2
+//
+// Returns a list of integers from 0 to n-1.
+//
+// lists.range(<int>) -> <list(int)>
+//
+// Examples:
+//
+// lists.range(5) -> [0, 1, 2, 3, 4]
+//
+// # Reverse
+//
+// Introduced in version: 2
+//
+// Returns the elements of a list in reverse order.
+//
+// <list(T)>.reverse() -> <list(T)>
+//
+// Examples:
+//
+// [5, 3, 1, 2].reverse() // return [2, 1, 3, 5]
+//
+// # Slice
+//
+// Returns a new sub-list using the indexes provided.
+//
+// <list>.slice(<int>, <int>) -> <list>
+//
+// Examples:
+//
+// [1,2,3,4].slice(1, 3) // return [2, 3]
+// [1,2,3,4].slice(2, 4) // return [3 ,4]
+//
+// # Flatten
+//
+// Flattens a list recursively.
+// If an optional depth is provided, the list is flattened to a the specificied level.
+// A negative depth value will result in an error.
+//
+// <list>.flatten(<list>) -> <list>
+// <list>.flatten(<list>, <int>) -> <list>
+//
+// Examples:
+//
+// [1,[2,3],[4]].flatten() // return [1, 2, 3, 4]
+// [1,[2,[3,4]]].flatten() // return [1, 2, [3, 4]]
+// [1,2,[],[],[3,4]].flatten() // return [1, 2, 3, 4]
+// [1,[2,[3,[4]]]].flatten(2) // return [1, 2, 3, [4]]
+// [1,[2,[3,[4]]]].flatten(-1) // error
+//
+// # Sort
+//
+// Introduced in version: 2
+//
+// Sorts a list with comparable elements. If the element type is not comparable
+// or the element types are not the same, the function will produce an error.
+//
+// <list(T)>.sort() -> <list(T)>
+// T in {int, uint, double, bool, duration, timestamp, string, bytes}
+//
+// Examples:
+//
+// [3, 2, 1].sort() // return [1, 2, 3]
+// ["b", "c", "a"].sort() // return ["a", "b", "c"]
+// [1, "b"].sort() // error
+// [[1, 2, 3]].sort() // error
+//
+// # SortBy
+//
+// Sorts a list by a key value, i.e., the order is determined by the result of
+// an expression applied to each element of the list.
+// The output of the key expression must be a comparable type, otherwise the
+// function will return an error.
+//
+// <list(T)>.sortBy(<bindingName>, <keyExpr>) -> <list(T)>
+// keyExpr returns a value in {int, uint, double, bool, duration, timestamp, string, bytes}
+
+// Examples:
+//
+// [
+// Player { name: "foo", score: 0 },
+// Player { name: "bar", score: -10 },
+// Player { name: "baz", score: 1000 },
+// ].sortBy(e, e.score).map(e, e.name)
+// == ["bar", "foo", "baz"]
+
+func Lists(options ...ListsOption) cel.EnvOption {
+ l := &listsLib{
+ version: math.MaxUint32,
+ }
+ for _, o := range options {
+ l = o(l)
+ }
+
+ return cel.Lib(l)
+}
+
+type listsLib struct {
+ version uint32
+}
+
+// LibraryName implements the SingletonLibrary interface method.
+func (listsLib) LibraryName() string {
+ return "cel.lib.ext.lists"
+}
+
+// ListsOption is a functional interface for configuring the strings library.
+type ListsOption func(*listsLib) *listsLib
+
+// ListsVersion configures the version of the string library.
+//
+// The version limits which functions are available. Only functions introduced
+// below or equal to the given version included in the library. If this option
+// is not set, all functions are available.
+//
+// See the library documentation to determine which version a function was introduced.
+// If the documentation does not state which version a function was introduced, it can
+// be assumed to be introduced at version 0, when the library was first created.
+func ListsVersion(version uint32) ListsOption {
+ return func(lib *listsLib) *listsLib {
+ lib.version = version
+ return lib
+ }
+}
+
+// CompileOptions implements the Library interface method.
+func (lib listsLib) CompileOptions() []cel.EnvOption {
+ listType := cel.ListType(cel.TypeParamType("T"))
+ listListType := cel.ListType(listType)
+ listDyn := cel.ListType(cel.DynType)
+ opts := []cel.EnvOption{
+ cel.Function("slice",
+ cel.MemberOverload("list_slice",
+ []*cel.Type{listType, cel.IntType, cel.IntType}, listType,
+ cel.FunctionBinding(func(args ...ref.Val) ref.Val {
+ list := args[0].(traits.Lister)
+ start := args[1].(types.Int)
+ end := args[2].(types.Int)
+ result, err := slice(list, start, end)
+ if err != nil {
+ return types.WrapErr(err)
+ }
+ return result
+ }),
+ ),
+ ),
+ }
+ if lib.version >= 1 {
+ opts = append(opts,
+ cel.Function("flatten",
+ cel.MemberOverload("list_flatten",
+ []*cel.Type{listListType}, listType,
+ cel.UnaryBinding(func(arg ref.Val) ref.Val {
+ list, ok := arg.(traits.Lister)
+ if !ok {
+ return types.MaybeNoSuchOverloadErr(arg)
+ }
+ flatList, err := flatten(list, 1)
+ if err != nil {
+ return types.WrapErr(err)
+ }
+
+ return types.DefaultTypeAdapter.NativeToValue(flatList)
+ }),
+ ),
+ cel.MemberOverload("list_flatten_int",
+ []*cel.Type{listDyn, types.IntType}, listDyn,
+ cel.BinaryBinding(func(arg1, arg2 ref.Val) ref.Val {
+ list, ok := arg1.(traits.Lister)
+ if !ok {
+ return types.MaybeNoSuchOverloadErr(arg1)
+ }
+ depth, ok := arg2.(types.Int)
+ if !ok {
+ return types.MaybeNoSuchOverloadErr(arg2)
+ }
+ flatList, err := flatten(list, int64(depth))
+ if err != nil {
+ return types.WrapErr(err)
+ }
+
+ return types.DefaultTypeAdapter.NativeToValue(flatList)
+ }),
+ ),
+ // To handle the case where a variable of just `list(T)` is provided at runtime
+ // with a graceful failure more, disable the type guards since the implementation
+ // can handle lists which are already flat.
+ decls.DisableTypeGuards(true),
+ ),
+ )
+ }
+ if lib.version >= 2 {
+ sortDecl := cel.Function("sort",
+ append(
+ templatedOverloads(comparableTypes, func(t *cel.Type) cel.FunctionOpt {
+ return cel.MemberOverload(
+ fmt.Sprintf("list_%s_sort", t.TypeName()),
+ []*cel.Type{cel.ListType(t)}, cel.ListType(t),
+ )
+ }),
+ cel.SingletonUnaryBinding(
+ func(arg ref.Val) ref.Val {
+ list, ok := arg.(traits.Lister)
+ if !ok {
+ return types.MaybeNoSuchOverloadErr(arg)
+ }
+ sorted, err := sortList(list)
+ if err != nil {
+ return types.WrapErr(err)
+ }
+
+ return sorted
+ },
+ // List traits
+ traits.ListerType,
+ ),
+ )...,
+ )
+ opts = append(opts, sortDecl)
+ opts = append(opts, cel.Macros(cel.ReceiverMacro("sortBy", 2, sortByMacro)))
+ opts = append(opts, cel.Function("@sortByAssociatedKeys",
+ append(
+ templatedOverloads(comparableTypes, func(u *cel.Type) cel.FunctionOpt {
+ return cel.MemberOverload(
+ fmt.Sprintf("list_%s_sortByAssociatedKeys", u.TypeName()),
+ []*cel.Type{listType, cel.ListType(u)}, listType,
+ )
+ }),
+ cel.SingletonBinaryBinding(
+ func(arg1 ref.Val, arg2 ref.Val) ref.Val {
+ list, ok := arg1.(traits.Lister)
+ if !ok {
+ return types.MaybeNoSuchOverloadErr(arg1)
+ }
+ keys, ok := arg2.(traits.Lister)
+ if !ok {
+ return types.MaybeNoSuchOverloadErr(arg2)
+ }
+ sorted, err := sortListByAssociatedKeys(list, keys)
+ if err != nil {
+ return types.WrapErr(err)
+ }
+
+ return sorted
+ },
+ // List traits
+ traits.ListerType,
+ ),
+ )...,
+ ))
+
+ opts = append(opts, cel.Function("lists.range",
+ cel.Overload("lists_range",
+ []*cel.Type{cel.IntType}, cel.ListType(cel.IntType),
+ cel.FunctionBinding(func(args ...ref.Val) ref.Val {
+ n := args[0].(types.Int)
+ result, err := genRange(n)
+ if err != nil {
+ return types.WrapErr(err)
+ }
+ return result
+ }),
+ ),
+ ))
+ opts = append(opts, cel.Function("reverse",
+ cel.MemberOverload("list_reverse",
+ []*cel.Type{listType}, listType,
+ cel.FunctionBinding(func(args ...ref.Val) ref.Val {
+ list := args[0].(traits.Lister)
+ result, err := reverseList(list)
+ if err != nil {
+ return types.WrapErr(err)
+ }
+ return result
+ }),
+ ),
+ ))
+ opts = append(opts, cel.Function("distinct",
+ cel.MemberOverload("list_distinct",
+ []*cel.Type{listType}, listType,
+ cel.UnaryBinding(func(list ref.Val) ref.Val {
+ result, err := distinctList(list.(traits.Lister))
+ if err != nil {
+ return types.WrapErr(err)
+ }
+ return result
+ }),
+ ),
+ ))
+ }
+
+ return opts
+}
+
+// ProgramOptions implements the Library interface method.
+func (listsLib) ProgramOptions() []cel.ProgramOption {
+ return []cel.ProgramOption{}
+}
+
+func genRange(n types.Int) (ref.Val, error) {
+ var newList []ref.Val
+ for i := types.Int(0); i < n; i++ {
+ newList = append(newList, i)
+ }
+ return types.DefaultTypeAdapter.NativeToValue(newList), nil
+}
+
+func reverseList(list traits.Lister) (ref.Val, error) {
+ var newList []ref.Val
+ listLength := list.Size().(types.Int)
+ for i := types.Int(0); i < listLength; i++ {
+ val := list.Get(listLength - i - 1)
+ newList = append(newList, val)
+ }
+ return types.DefaultTypeAdapter.NativeToValue(newList), nil
+}
+
+func slice(list traits.Lister, start, end types.Int) (ref.Val, error) {
+ listLength := list.Size().(types.Int)
+ if start < 0 || end < 0 {
+ return nil, fmt.Errorf("cannot slice(%d, %d), negative indexes not supported", start, end)
+ }
+ if start > end {
+ return nil, fmt.Errorf("cannot slice(%d, %d), start index must be less than or equal to end index", start, end)
+ }
+ if listLength < end {
+ return nil, fmt.Errorf("cannot slice(%d, %d), list is length %d", start, end, listLength)
+ }
+
+ var newList []ref.Val
+ for i := types.Int(start); i < end; i++ {
+ val := list.Get(i)
+ newList = append(newList, val)
+ }
+ return types.DefaultTypeAdapter.NativeToValue(newList), nil
+}
+
+func flatten(list traits.Lister, depth int64) ([]ref.Val, error) {
+ if depth < 0 {
+ return nil, fmt.Errorf("level must be non-negative")
+ }
+
+ var newList []ref.Val
+ iter := list.Iterator()
+
+ for iter.HasNext() == types.True {
+ val := iter.Next()
+ nestedList, isList := val.(traits.Lister)
+
+ if !isList || depth == 0 {
+ newList = append(newList, val)
+ continue
+ } else {
+ flattenedList, err := flatten(nestedList, depth-1)
+ if err != nil {
+ return nil, err
+ }
+
+ newList = append(newList, flattenedList...)
+ }
+ }
+
+ return newList, nil
+}
+
+func sortList(list traits.Lister) (ref.Val, error) {
+ return sortListByAssociatedKeys(list, list)
+}
+
+// Internal function used for the implementation of sort() and sortBy().
+//
+// Sorts a list of arbitrary elements, according to the order produced by sorting
+// another list of comparable elements. If the element type of the keys is not
+// comparable or the element types are not the same, the function will produce an error.
+//
+// <list(T)>.@sortByAssociatedKeys(<list(U)>) -> <list(T)>
+// U in {int, uint, double, bool, duration, timestamp, string, bytes}
+//
+// Example:
+//
+// ["foo", "bar", "baz"].@sortByAssociatedKeys([3, 1, 2]) // return ["bar", "baz", "foo"]
+func sortListByAssociatedKeys(list, keys traits.Lister) (ref.Val, error) {
+ listLength := list.Size().(types.Int)
+ keysLength := keys.Size().(types.Int)
+ if listLength != keysLength {
+ return nil, fmt.Errorf(
+ "@sortByAssociatedKeys() expected a list of the same size as the associated keys list, but got %d and %d elements respectively",
+ listLength,
+ keysLength,
+ )
+ }
+ if listLength == 0 {
+ return list, nil
+ }
+ elem := keys.Get(types.IntZero)
+ if _, ok := elem.(traits.Comparer); !ok {
+ return nil, fmt.Errorf("list elements must be comparable")
+ }
+
+ sortedIndices := make([]ref.Val, 0, listLength)
+ for i := types.IntZero; i < listLength; i++ {
+ if keys.Get(i).Type() != elem.Type() {
+ return nil, fmt.Errorf("list elements must have the same type")
+ }
+ sortedIndices = append(sortedIndices, i)
+ }
+
+ sort.Slice(sortedIndices, func(i, j int) bool {
+ iKey := keys.Get(sortedIndices[i])
+ jKey := keys.Get(sortedIndices[j])
+ return iKey.(traits.Comparer).Compare(jKey) == types.IntNegOne
+ })
+
+ sorted := make([]ref.Val, 0, listLength)
+
+ for _, sortedIdx := range sortedIndices {
+ sorted = append(sorted, list.Get(sortedIdx))
+ }
+ return types.DefaultTypeAdapter.NativeToValue(sorted), nil
+}
+
+// sortByMacro transforms an expression like:
+//
+// mylistExpr.sortBy(e, -math.abs(e))
+//
+// into something equivalent to:
+//
+// cel.bind(
+// __sortBy_input__,
+// myListExpr,
+// __sortBy_input__.@sortByAssociatedKeys(__sortBy_input__.map(e, -math.abs(e))
+// )
+func sortByMacro(meh cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
+ varIdent := meh.NewIdent("@__sortBy_input__")
+ varName := varIdent.AsIdent()
+
+ targetKind := target.Kind()
+ if targetKind != ast.ListKind &&
+ targetKind != ast.SelectKind &&
+ targetKind != ast.IdentKind &&
+ targetKind != ast.ComprehensionKind && targetKind != ast.CallKind {
+ return nil, meh.NewError(target.ID(), fmt.Sprintf("sortBy can only be applied to a list, identifier, comprehension, call or select expression"))
+ }
+
+ mapCompr, err := parser.MakeMap(meh, meh.Copy(varIdent), args)
+ if err != nil {
+ return nil, err
+ }
+ callExpr := meh.NewMemberCall("@sortByAssociatedKeys",
+ meh.Copy(varIdent),
+ mapCompr,
+ )
+
+ bindExpr := meh.NewComprehension(
+ meh.NewList(),
+ "#unused",
+ varName,
+ target,
+ meh.NewLiteral(types.False),
+ varIdent,
+ callExpr,
+ )
+
+ return bindExpr, nil
+}
+
+func distinctList(list traits.Lister) (ref.Val, error) {
+ listLength := list.Size().(types.Int)
+ if listLength == 0 {
+ return list, nil
+ }
+ uniqueList := make([]ref.Val, 0, listLength)
+ for i := types.IntZero; i < listLength; i++ {
+ val := list.Get(i)
+ seen := false
+ for j := types.IntZero; j < types.Int(len(uniqueList)); j++ {
+ if i == j {
+ continue
+ }
+ other := uniqueList[j]
+ if val.Equal(other) == types.True {
+ seen = true
+ break
+ }
+ }
+ if !seen {
+ uniqueList = append(uniqueList, val)
+ }
+ }
+
+ return types.DefaultTypeAdapter.NativeToValue(uniqueList), nil
+}
+
+func templatedOverloads(types []*cel.Type, template func(t *cel.Type) cel.FunctionOpt) []cel.FunctionOpt {
+ overloads := make([]cel.FunctionOpt, len(types))
+ for i, t := range types {
+ overloads[i] = template(t)
+ }
+ return overloads
+}
diff --git a/vendor/github.com/google/cel-go/ext/math.go b/vendor/github.com/google/cel-go/ext/math.go
index 1c8ad58..250246d 100644
--- a/vendor/github.com/google/cel-go/ext/math.go
+++ b/vendor/github.com/google/cel-go/ext/math.go
@@ -16,14 +16,14 @@ package ext
import (
"fmt"
+ "math"
"strings"
"github.com/google/cel-go/cel"
- "github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
// Math returns a cel.EnvOption to configure namespaced math helper macros and
@@ -87,33 +87,317 @@ import (
// math.least('string') // parse error
// math.least(a, b) // check-time error if a or b is non-numeric
// math.least(dyn('string')) // runtime error
-func Math() cel.EnvOption {
- return cel.Lib(mathLib{})
+//
+// # Math.BitOr
+//
+// Introduced at version: 1
+//
+// Performs a bitwise-OR operation over two int or uint values.
+//
+// math.bitOr(<int>, <int>) -> <int>
+// math.bitOr(<uint>, <uint>) -> <uint>
+//
+// Examples:
+//
+// math.bitOr(1u, 2u) // returns 3u
+// math.bitOr(-2, -4) // returns -2
+//
+// # Math.BitAnd
+//
+// Introduced at version: 1
+//
+// Performs a bitwise-AND operation over two int or uint values.
+//
+// math.bitAnd(<int>, <int>) -> <int>
+// math.bitAnd(<uint>, <uint>) -> <uint>
+//
+// Examples:
+//
+// math.bitAnd(3u, 2u) // return 2u
+// math.bitAnd(3, 5) // returns 3
+// math.bitAnd(-3, -5) // returns -7
+//
+// # Math.BitXor
+//
+// Introduced at version: 1
+//
+// math.bitXor(<int>, <int>) -> <int>
+// math.bitXor(<uint>, <uint>) -> <uint>
+//
+// Performs a bitwise-XOR operation over two int or uint values.
+//
+// Examples:
+//
+// math.bitXor(3u, 5u) // returns 6u
+// math.bitXor(1, 3) // returns 2
+//
+// # Math.BitNot
+//
+// Introduced at version: 1
+//
+// Function which accepts a single int or uint and performs a bitwise-NOT
+// ones-complement of the given binary value.
+//
+// math.bitNot(<int>) -> <int>
+// math.bitNot(<uint>) -> <uint>
+//
+// Examples
+//
+// math.bitNot(1) // returns -1
+// math.bitNot(-1) // return 0
+// math.bitNot(0u) // returns 18446744073709551615u
+//
+// # Math.BitShiftLeft
+//
+// Introduced at version: 1
+//
+// Perform a left shift of bits on the first parameter, by the amount of bits
+// specified in the second parameter. The first parameter is either a uint or
+// an int. The second parameter must be an int.
+//
+// When the second parameter is 64 or greater, 0 will be always be returned
+// since the number of bits shifted is greater than or equal to the total bit
+// length of the number being shifted. Negative valued bit shifts will result
+// in a runtime error.
+//
+// math.bitShiftLeft(<int>, <int>) -> <int>
+// math.bitShiftLeft(<uint>, <int>) -> <uint>
+//
+// Examples
+//
+// math.bitShiftLeft(1, 2) // returns 4
+// math.bitShiftLeft(-1, 2) // returns -4
+// math.bitShiftLeft(1u, 2) // return 4u
+// math.bitShiftLeft(1u, 200) // returns 0u
+//
+// # Math.BitShiftRight
+//
+// Introduced at version: 1
+//
+// Perform a right shift of bits on the first parameter, by the amount of bits
+// specified in the second parameter. The first parameter is either a uint or
+// an int. The second parameter must be an int.
+//
+// When the second parameter is 64 or greater, 0 will always be returned since
+// the number of bits shifted is greater than or equal to the total bit length
+// of the number being shifted. Negative valued bit shifts will result in a
+// runtime error.
+//
+// The sign bit extension will not be preserved for this operation: vacant bits
+// on the left are filled with 0.
+//
+// math.bitShiftRight(<int>, <int>) -> <int>
+// math.bitShiftRight(<uint>, <int>) -> <uint>
+//
+// Examples
+//
+// math.bitShiftRight(1024, 2) // returns 256
+// math.bitShiftRight(1024u, 2) // returns 256u
+// math.bitShiftRight(1024u, 64) // returns 0u
+//
+// # Math.Ceil
+//
+// Introduced at version: 1
+//
+// Compute the ceiling of a double value.
+//
+// math.ceil(<double>) -> <double>
+//
+// Examples:
+//
+// math.ceil(1.2) // returns 2.0
+// math.ceil(-1.2) // returns -1.0
+//
+// # Math.Floor
+//
+// Introduced at version: 1
+//
+// Compute the floor of a double value.
+//
+// math.floor(<double>) -> <double>
+//
+// Examples:
+//
+// math.floor(1.2) // returns 1.0
+// math.floor(-1.2) // returns -2.0
+//
+// # Math.Round
+//
+// Introduced at version: 1
+//
+// Rounds the double value to the nearest whole number with ties rounding away
+// from zero, e.g. 1.5 -> 2.0, -1.5 -> -2.0.
+//
+// math.round(<double>) -> <double>
+//
+// Examples:
+//
+// math.round(1.2) // returns 1.0
+// math.round(1.5) // returns 2.0
+// math.round(-1.5) // returns -2.0
+//
+// # Math.Trunc
+//
+// Introduced at version: 1
+//
+// Truncates the fractional portion of the double value.
+//
+// math.trunc(<double>) -> <double>
+//
+// Examples:
+//
+// math.trunc(-1.3) // returns -1.0
+// math.trunc(1.3) // returns 1.0
+//
+// # Math.Abs
+//
+// Introduced at version: 1
+//
+// Returns the absolute value of the numeric type provided as input. If the
+// value is NaN, the output is NaN. If the input is int64 min, the function
+// will result in an overflow error.
+//
+// math.abs(<double>) -> <double>
+// math.abs(<int>) -> <int>
+// math.abs(<uint>) -> <uint>
+//
+// Examples:
+//
+// math.abs(-1) // returns 1
+// math.abs(1) // returns 1
+// math.abs(-9223372036854775808) // overflow error
+//
+// # Math.Sign
+//
+// Introduced at version: 1
+//
+// Returns the sign of the numeric type, either -1, 0, 1 as an int, double, or
+// uint depending on the overload. For floating point values, if NaN is
+// provided as input, the output is also NaN. The implementation does not
+// differentiate between positive and negative zero.
+//
+// math.sign(<double>) -> <double>
+// math.sign(<int>) -> <int>
+// math.sign(<uint>) -> <uint>
+//
+// Examples:
+//
+// math.sign(-42) // returns -1
+// math.sign(0) // returns 0
+// math.sign(42) // returns 1
+//
+// # Math.IsInf
+//
+// Introduced at version: 1
+//
+// Returns true if the input double value is -Inf or +Inf.
+//
+// math.isInf(<double>) -> <bool>
+//
+// Examples:
+//
+// math.isInf(1.0/0.0) // returns true
+// math.isInf(1.2) // returns false
+//
+// # Math.IsNaN
+//
+// Introduced at version: 1
+//
+// Returns true if the input double value is NaN, false otherwise.
+//
+// math.isNaN(<double>) -> <bool>
+//
+// Examples:
+//
+// math.isNaN(0.0/0.0) // returns true
+// math.isNaN(1.2) // returns false
+//
+// # Math.IsFinite
+//
+// Introduced at version: 1
+//
+// Returns true if the value is a finite number. Equivalent in behavior to:
+// !math.isNaN(double) && !math.isInf(double)
+//
+// math.isFinite(<double>) -> <bool>
+//
+// Examples:
+//
+// math.isFinite(0.0/0.0) // returns false
+// math.isFinite(1.2) // returns true
+func Math(options ...MathOption) cel.EnvOption {
+ m := &mathLib{version: math.MaxUint32}
+ for _, o := range options {
+ m = o(m)
+ }
+ return cel.Lib(m)
}
const (
mathNamespace = "math"
leastMacro = "least"
greatestMacro = "greatest"
- minFunc = "math.@min"
- maxFunc = "math.@max"
+
+ // Min-max functions
+ minFunc = "math.@min"
+ maxFunc = "math.@max"
+
+ // Rounding functions
+ ceilFunc = "math.ceil"
+ floorFunc = "math.floor"
+ roundFunc = "math.round"
+ truncFunc = "math.trunc"
+
+ // Floating point helper functions
+ isInfFunc = "math.isInf"
+ isNanFunc = "math.isNaN"
+ isFiniteFunc = "math.isFinite"
+
+ // Signedness functions
+ absFunc = "math.abs"
+ signFunc = "math.sign"
+
+ // Bitwise functions
+ bitAndFunc = "math.bitAnd"
+ bitOrFunc = "math.bitOr"
+ bitXorFunc = "math.bitXor"
+ bitNotFunc = "math.bitNot"
+ bitShiftLeftFunc = "math.bitShiftLeft"
+ bitShiftRightFunc = "math.bitShiftRight"
+)
+
+var (
+ errIntOverflow = types.NewErr("integer overflow")
)
-type mathLib struct{}
+// MathOption declares a functional operator for configuring math extensions.
+type MathOption func(*mathLib) *mathLib
+
+// MathVersion sets the library version for math extensions.
+func MathVersion(version uint32) MathOption {
+ return func(lib *mathLib) *mathLib {
+ lib.version = version
+ return lib
+ }
+}
+
+type mathLib struct {
+ version uint32
+}
// LibraryName implements the SingletonLibrary interface method.
-func (mathLib) LibraryName() string {
+func (*mathLib) LibraryName() string {
return "cel.lib.ext.math"
}
// CompileOptions implements the Library interface method.
-func (mathLib) CompileOptions() []cel.EnvOption {
- return []cel.EnvOption{
+func (lib *mathLib) CompileOptions() []cel.EnvOption {
+ opts := []cel.EnvOption{
cel.Macros(
// math.least(num, ...)
- cel.NewReceiverVarArgMacro(leastMacro, mathLeast),
+ cel.ReceiverVarArgMacro(leastMacro, mathLeast),
// math.greatest(num, ...)
- cel.NewReceiverVarArgMacro(greatestMacro, mathGreatest),
+ cel.ReceiverVarArgMacro(greatestMacro, mathGreatest),
),
cel.Function(minFunc,
cel.Overload("math_@min_double", []*cel.Type{cel.DoubleType}, cel.DoubleType,
@@ -180,76 +464,149 @@ func (mathLib) CompileOptions() []cel.EnvOption {
cel.UnaryBinding(maxList)),
),
}
+ if lib.version >= 1 {
+ opts = append(opts,
+ // Rounding function declarations
+ cel.Function(ceilFunc,
+ cel.Overload("math_ceil_double", []*cel.Type{cel.DoubleType}, cel.DoubleType,
+ cel.UnaryBinding(ceil))),
+ cel.Function(floorFunc,
+ cel.Overload("math_floor_double", []*cel.Type{cel.DoubleType}, cel.DoubleType,
+ cel.UnaryBinding(floor))),
+ cel.Function(roundFunc,
+ cel.Overload("math_round_double", []*cel.Type{cel.DoubleType}, cel.DoubleType,
+ cel.UnaryBinding(round))),
+ cel.Function(truncFunc,
+ cel.Overload("math_trunc_double", []*cel.Type{cel.DoubleType}, cel.DoubleType,
+ cel.UnaryBinding(trunc))),
+
+ // Floating point helpers
+ cel.Function(isInfFunc,
+ cel.Overload("math_isInf_double", []*cel.Type{cel.DoubleType}, cel.BoolType,
+ cel.UnaryBinding(isInf))),
+ cel.Function(isNanFunc,
+ cel.Overload("math_isNaN_double", []*cel.Type{cel.DoubleType}, cel.BoolType,
+ cel.UnaryBinding(isNaN))),
+ cel.Function(isFiniteFunc,
+ cel.Overload("math_isFinite_double", []*cel.Type{cel.DoubleType}, cel.BoolType,
+ cel.UnaryBinding(isFinite))),
+
+ // Signedness functions
+ cel.Function(absFunc,
+ cel.Overload("math_abs_double", []*cel.Type{cel.DoubleType}, cel.DoubleType,
+ cel.UnaryBinding(absDouble)),
+ cel.Overload("math_abs_int", []*cel.Type{cel.IntType}, cel.IntType,
+ cel.UnaryBinding(absInt)),
+ cel.Overload("math_abs_uint", []*cel.Type{cel.UintType}, cel.UintType,
+ cel.UnaryBinding(identity)),
+ ),
+ cel.Function(signFunc,
+ cel.Overload("math_sign_double", []*cel.Type{cel.DoubleType}, cel.DoubleType,
+ cel.UnaryBinding(sign)),
+ cel.Overload("math_sign_int", []*cel.Type{cel.IntType}, cel.IntType,
+ cel.UnaryBinding(sign)),
+ cel.Overload("math_sign_uint", []*cel.Type{cel.UintType}, cel.UintType,
+ cel.UnaryBinding(sign)),
+ ),
+
+ // Bitwise operator declarations
+ cel.Function(bitAndFunc,
+ cel.Overload("math_bitAnd_int_int", []*cel.Type{cel.IntType, cel.IntType}, cel.IntType,
+ cel.BinaryBinding(bitAndPairInt)),
+ cel.Overload("math_bitAnd_uint_uint", []*cel.Type{cel.UintType, cel.UintType}, cel.UintType,
+ cel.BinaryBinding(bitAndPairUint)),
+ ),
+ cel.Function(bitOrFunc,
+ cel.Overload("math_bitOr_int_int", []*cel.Type{cel.IntType, cel.IntType}, cel.IntType,
+ cel.BinaryBinding(bitOrPairInt)),
+ cel.Overload("math_bitOr_uint_uint", []*cel.Type{cel.UintType, cel.UintType}, cel.UintType,
+ cel.BinaryBinding(bitOrPairUint)),
+ ),
+ cel.Function(bitXorFunc,
+ cel.Overload("math_bitXor_int_int", []*cel.Type{cel.IntType, cel.IntType}, cel.IntType,
+ cel.BinaryBinding(bitXorPairInt)),
+ cel.Overload("math_bitXor_uint_uint", []*cel.Type{cel.UintType, cel.UintType}, cel.UintType,
+ cel.BinaryBinding(bitXorPairUint)),
+ ),
+ cel.Function(bitNotFunc,
+ cel.Overload("math_bitNot_int_int", []*cel.Type{cel.IntType}, cel.IntType,
+ cel.UnaryBinding(bitNotInt)),
+ cel.Overload("math_bitNot_uint_uint", []*cel.Type{cel.UintType}, cel.UintType,
+ cel.UnaryBinding(bitNotUint)),
+ ),
+ cel.Function(bitShiftLeftFunc,
+ cel.Overload("math_bitShiftLeft_int_int", []*cel.Type{cel.IntType, cel.IntType}, cel.IntType,
+ cel.BinaryBinding(bitShiftLeftIntInt)),
+ cel.Overload("math_bitShiftLeft_uint_int", []*cel.Type{cel.UintType, cel.IntType}, cel.UintType,
+ cel.BinaryBinding(bitShiftLeftUintInt)),
+ ),
+ cel.Function(bitShiftRightFunc,
+ cel.Overload("math_bitShiftRight_int_int", []*cel.Type{cel.IntType, cel.IntType}, cel.IntType,
+ cel.BinaryBinding(bitShiftRightIntInt)),
+ cel.Overload("math_bitShiftRight_uint_int", []*cel.Type{cel.UintType, cel.IntType}, cel.UintType,
+ cel.BinaryBinding(bitShiftRightUintInt)),
+ ),
+ )
+ }
+ return opts
}
// ProgramOptions implements the Library interface method.
-func (mathLib) ProgramOptions() []cel.ProgramOption {
+func (*mathLib) ProgramOptions() []cel.ProgramOption {
return []cel.ProgramOption{}
}
-func mathLeast(meh cel.MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func mathLeast(meh cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
if !macroTargetMatchesNamespace(mathNamespace, target) {
return nil, nil
}
switch len(args) {
case 0:
- return nil, &common.Error{
- Message: "math.least() requires at least one argument",
- Location: meh.OffsetLocation(target.GetId()),
- }
+ return nil, meh.NewError(target.ID(), "math.least() requires at least one argument")
case 1:
- if isListLiteralWithValidArgs(args[0]) || isValidArgType(args[0]) {
- return meh.GlobalCall(minFunc, args[0]), nil
- }
- return nil, &common.Error{
- Message: "math.least() invalid single argument value",
- Location: meh.OffsetLocation(args[0].GetId()),
+ if isListLiteralWithNumericArgs(args[0]) || isNumericArgType(args[0]) {
+ return meh.NewCall(minFunc, args[0]), nil
}
+ return nil, meh.NewError(args[0].ID(), "math.least() invalid single argument value")
case 2:
err := checkInvalidArgs(meh, "math.least()", args)
if err != nil {
return nil, err
}
- return meh.GlobalCall(minFunc, args...), nil
+ return meh.NewCall(minFunc, args...), nil
default:
err := checkInvalidArgs(meh, "math.least()", args)
if err != nil {
return nil, err
}
- return meh.GlobalCall(minFunc, meh.NewList(args...)), nil
+ return meh.NewCall(minFunc, meh.NewList(args...)), nil
}
}
-func mathGreatest(meh cel.MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func mathGreatest(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
if !macroTargetMatchesNamespace(mathNamespace, target) {
return nil, nil
}
switch len(args) {
case 0:
- return nil, &common.Error{
- Message: "math.greatest() requires at least one argument",
- Location: meh.OffsetLocation(target.GetId()),
- }
+ return nil, mef.NewError(target.ID(), "math.greatest() requires at least one argument")
case 1:
- if isListLiteralWithValidArgs(args[0]) || isValidArgType(args[0]) {
- return meh.GlobalCall(maxFunc, args[0]), nil
- }
- return nil, &common.Error{
- Message: "math.greatest() invalid single argument value",
- Location: meh.OffsetLocation(args[0].GetId()),
+ if isListLiteralWithNumericArgs(args[0]) || isNumericArgType(args[0]) {
+ return mef.NewCall(maxFunc, args[0]), nil
}
+ return nil, mef.NewError(args[0].ID(), "math.greatest() invalid single argument value")
case 2:
- err := checkInvalidArgs(meh, "math.greatest()", args)
+ err := checkInvalidArgs(mef, "math.greatest()", args)
if err != nil {
return nil, err
}
- return meh.GlobalCall(maxFunc, args...), nil
+ return mef.NewCall(maxFunc, args...), nil
default:
- err := checkInvalidArgs(meh, "math.greatest()", args)
+ err := checkInvalidArgs(mef, "math.greatest()", args)
if err != nil {
return nil, err
}
- return meh.GlobalCall(maxFunc, meh.NewList(args...)), nil
+ return mef.NewCall(maxFunc, mef.NewList(args...)), nil
}
}
@@ -257,6 +614,165 @@ func identity(val ref.Val) ref.Val {
return val
}
+func ceil(val ref.Val) ref.Val {
+ v := val.(types.Double)
+ return types.Double(math.Ceil(float64(v)))
+}
+
+func floor(val ref.Val) ref.Val {
+ v := val.(types.Double)
+ return types.Double(math.Floor(float64(v)))
+}
+
+func round(val ref.Val) ref.Val {
+ v := val.(types.Double)
+ return types.Double(math.Round(float64(v)))
+}
+
+func trunc(val ref.Val) ref.Val {
+ v := val.(types.Double)
+ return types.Double(math.Trunc(float64(v)))
+}
+
+func isInf(val ref.Val) ref.Val {
+ v := val.(types.Double)
+ return types.Bool(math.IsInf(float64(v), 0))
+}
+
+func isFinite(val ref.Val) ref.Val {
+ v := float64(val.(types.Double))
+ return types.Bool(!math.IsInf(v, 0) && !math.IsNaN(v))
+}
+
+func isNaN(val ref.Val) ref.Val {
+ v := val.(types.Double)
+ return types.Bool(math.IsNaN(float64(v)))
+}
+
+func absDouble(val ref.Val) ref.Val {
+ v := float64(val.(types.Double))
+ return types.Double(math.Abs(v))
+}
+
+func absInt(val ref.Val) ref.Val {
+ v := int64(val.(types.Int))
+ if v == math.MinInt64 {
+ return errIntOverflow
+ }
+ if v >= 0 {
+ return val
+ }
+ return -types.Int(v)
+}
+
+func sign(val ref.Val) ref.Val {
+ switch v := val.(type) {
+ case types.Double:
+ if isNaN(v) == types.True {
+ return v
+ }
+ zero := types.Double(0)
+ if v > zero {
+ return types.Double(1)
+ }
+ if v < zero {
+ return types.Double(-1)
+ }
+ return zero
+ case types.Int:
+ return v.Compare(types.IntZero)
+ case types.Uint:
+ if v == types.Uint(0) {
+ return types.Uint(0)
+ }
+ return types.Uint(1)
+ default:
+ return maybeSuffixError(val, "math.sign")
+ }
+}
+
+func bitAndPairInt(first, second ref.Val) ref.Val {
+ l := first.(types.Int)
+ r := second.(types.Int)
+ return l & r
+}
+
+func bitAndPairUint(first, second ref.Val) ref.Val {
+ l := first.(types.Uint)
+ r := second.(types.Uint)
+ return l & r
+}
+
+func bitOrPairInt(first, second ref.Val) ref.Val {
+ l := first.(types.Int)
+ r := second.(types.Int)
+ return l | r
+}
+
+func bitOrPairUint(first, second ref.Val) ref.Val {
+ l := first.(types.Uint)
+ r := second.(types.Uint)
+ return l | r
+}
+
+func bitXorPairInt(first, second ref.Val) ref.Val {
+ l := first.(types.Int)
+ r := second.(types.Int)
+ return l ^ r
+}
+
+func bitXorPairUint(first, second ref.Val) ref.Val {
+ l := first.(types.Uint)
+ r := second.(types.Uint)
+ return l ^ r
+}
+
+func bitNotInt(value ref.Val) ref.Val {
+ v := value.(types.Int)
+ return ^v
+}
+
+func bitNotUint(value ref.Val) ref.Val {
+ v := value.(types.Uint)
+ return ^v
+}
+
+func bitShiftLeftIntInt(value, bits ref.Val) ref.Val {
+ v := value.(types.Int)
+ bs := bits.(types.Int)
+ if bs < types.IntZero {
+ return types.NewErr("math.bitShiftLeft() negative offset: %d", bs)
+ }
+ return v << bs
+}
+
+func bitShiftLeftUintInt(value, bits ref.Val) ref.Val {
+ v := value.(types.Uint)
+ bs := bits.(types.Int)
+ if bs < types.IntZero {
+ return types.NewErr("math.bitShiftLeft() negative offset: %d", bs)
+ }
+ return v << bs
+}
+
+func bitShiftRightIntInt(value, bits ref.Val) ref.Val {
+ v := value.(types.Int)
+ bs := bits.(types.Int)
+ if bs < types.IntZero {
+ return types.NewErr("math.bitShiftRight() negative offset: %d", bs)
+ }
+ return types.Int(types.Uint(v) >> bs)
+}
+
+func bitShiftRightUintInt(value, bits ref.Val) ref.Val {
+ v := value.(types.Uint)
+ bs := bits.(types.Int)
+ if bs < types.IntZero {
+ return types.NewErr("math.bitShiftRight() negative offset: %d", bs)
+ }
+ return v >> bs
+}
+
func minPair(first, second ref.Val) ref.Val {
cmp, ok := first.(traits.Comparer)
if !ok {
@@ -323,52 +839,49 @@ func maxList(numList ref.Val) ref.Val {
}
}
-func checkInvalidArgs(meh cel.MacroExprHelper, funcName string, args []*exprpb.Expr) *common.Error {
+func checkInvalidArgs(meh cel.MacroExprFactory, funcName string, args []ast.Expr) *cel.Error {
for _, arg := range args {
err := checkInvalidArgLiteral(funcName, arg)
if err != nil {
- return &common.Error{
- Message: err.Error(),
- Location: meh.OffsetLocation(arg.GetId()),
- }
+ return meh.NewError(arg.ID(), err.Error())
}
}
return nil
}
-func checkInvalidArgLiteral(funcName string, arg *exprpb.Expr) error {
- if !isValidArgType(arg) {
+func checkInvalidArgLiteral(funcName string, arg ast.Expr) error {
+ if !isNumericArgType(arg) {
return fmt.Errorf("%s simple literal arguments must be numeric", funcName)
}
return nil
}
-func isValidArgType(arg *exprpb.Expr) bool {
- switch arg.GetExprKind().(type) {
- case *exprpb.Expr_ConstExpr:
- c := arg.GetConstExpr()
- switch c.GetConstantKind().(type) {
- case *exprpb.Constant_DoubleValue, *exprpb.Constant_Int64Value, *exprpb.Constant_Uint64Value:
+func isNumericArgType(arg ast.Expr) bool {
+ switch arg.Kind() {
+ case ast.LiteralKind:
+ c := ref.Val(arg.AsLiteral())
+ switch c.(type) {
+ case types.Double, types.Int, types.Uint:
return true
default:
return false
}
- case *exprpb.Expr_ListExpr, *exprpb.Expr_StructExpr:
+ case ast.ListKind, ast.MapKind, ast.StructKind:
return false
default:
return true
}
}
-func isListLiteralWithValidArgs(arg *exprpb.Expr) bool {
- switch arg.GetExprKind().(type) {
- case *exprpb.Expr_ListExpr:
- list := arg.GetListExpr()
- if len(list.GetElements()) == 0 {
+func isListLiteralWithNumericArgs(arg ast.Expr) bool {
+ switch arg.Kind() {
+ case ast.ListKind:
+ list := arg.AsList()
+ if list.Size() == 0 {
return false
}
- for _, e := range list.GetElements() {
- if !isValidArgType(e) {
+ for _, e := range list.Elements() {
+ if !isNumericArgType(e) {
return false
}
}
diff --git a/vendor/github.com/google/cel-go/ext/native.go b/vendor/github.com/google/cel-go/ext/native.go
index acbc44b..36ab4a7 100644
--- a/vendor/github.com/google/cel-go/ext/native.go
+++ b/vendor/github.com/google/cel-go/ext/native.go
@@ -15,6 +15,7 @@
package ext
import (
+ "errors"
"fmt"
"reflect"
"strings"
@@ -24,13 +25,11 @@ import (
"google.golang.org/protobuf/reflect/protoreflect"
"github.com/google/cel-go/cel"
- "github.com/google/cel-go/checker/decls"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/pb"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
structpb "google.golang.org/protobuf/types/known/structpb"
)
@@ -79,12 +78,45 @@ var (
// same advice holds if you are using custom type adapters and type providers. The native type
// provider composes over whichever type adapter and provider is configured in the cel.Env at
// the time that it is invoked.
-func NativeTypes(refTypes ...any) cel.EnvOption {
+//
+// There is also the possibility to rename the fields of native structs by setting the `cel` tag
+// for fields you want to override. In order to enable this feature, pass in the `EnableStructTag`
+// option. Here is an example to see it in action:
+//
+// ```go
+// package identity
+//
+// type Account struct {
+// ID int
+// OwnerName string `cel:"owner"`
+// }
+//
+// ```
+//
+// The `OwnerName` field is now accessible in CEL via `owner`, e.g. `identity.Account{owner: 'bob'}`.
+// In case there are duplicated field names in the struct, an error will be returned.
+func NativeTypes(args ...any) cel.EnvOption {
return func(env *cel.Env) (*cel.Env, error) {
- tp, err := newNativeTypeProvider(env.TypeAdapter(), env.TypeProvider(), refTypes...)
+ nativeTypes := make([]any, 0, len(args))
+ tpOptions := nativeTypeOptions{}
+
+ for _, v := range args {
+ switch v := v.(type) {
+ case NativeTypesOption:
+ err := v(&tpOptions)
+ if err != nil {
+ return nil, err
+ }
+ default:
+ nativeTypes = append(nativeTypes, v)
+ }
+ }
+
+ tp, err := newNativeTypeProvider(tpOptions, env.CELTypeAdapter(), env.CELTypeProvider(), nativeTypes...)
if err != nil {
return nil, err
}
+
env, err = cel.CustomTypeAdapter(tp)(env)
if err != nil {
return nil, err
@@ -93,22 +125,93 @@ func NativeTypes(refTypes ...any) cel.EnvOption {
}
}
-func newNativeTypeProvider(adapter ref.TypeAdapter, provider ref.TypeProvider, refTypes ...any) (*nativeTypeProvider, error) {
+// NativeTypesOption is a functional interface for configuring handling of native types.
+type NativeTypesOption func(*nativeTypeOptions) error
+
+// NativeTypesFieldNameHandler is a handler for mapping a reflect.StructField to a CEL field name.
+// This can be used to override the default Go struct field to CEL field name mapping.
+type NativeTypesFieldNameHandler = func(field reflect.StructField) string
+
+func fieldNameByTag(structTagToParse string) func(field reflect.StructField) string {
+ return func(field reflect.StructField) string {
+ tag, found := field.Tag.Lookup(structTagToParse)
+ if found {
+ splits := strings.Split(tag, ",")
+ if len(splits) > 0 {
+ // We make the assumption that the leftmost entry in the tag is the name.
+ // This seems to be true for most tags that have the concept of a name/key, such as:
+ // https://pkg.go.dev/encoding/xml#Marshal
+ // https://pkg.go.dev/encoding/json#Marshal
+ // https://pkg.go.dev/go.mongodb.org/mongo-driver/bson#hdr-Structs
+ // https://pkg.go.dev/gopkg.in/yaml.v2#Marshal
+ name := splits[0]
+ return name
+ }
+ }
+
+ return field.Name
+ }
+}
+
+type nativeTypeOptions struct {
+ // fieldNameHandler controls how CEL should perform struct field renames.
+ // This is most commonly used for switching to parsing based off the struct field tag,
+ // such as "cel" or "json".
+ fieldNameHandler NativeTypesFieldNameHandler
+}
+
+// ParseStructTags configures if native types field names should be overridable by CEL struct tags.
+// This is equivalent to ParseStructTag("cel")
+func ParseStructTags(enabled bool) NativeTypesOption {
+ return func(ntp *nativeTypeOptions) error {
+ if enabled {
+ ntp.fieldNameHandler = fieldNameByTag("cel")
+ } else {
+ ntp.fieldNameHandler = nil
+ }
+ return nil
+ }
+}
+
+// ParseStructTag configures the struct tag to parse. The 0th item in the tag is used as the name of the CEL field.
+// For example:
+// If the tag to parse is "cel" and the struct field has tag cel:"foo", the CEL struct field will be "foo".
+// If the tag to parse is "json" and the struct field has tag json:"foo,omitempty", the CEL struct field will be "foo".
+func ParseStructTag(tag string) NativeTypesOption {
+ return func(ntp *nativeTypeOptions) error {
+ ntp.fieldNameHandler = fieldNameByTag(tag)
+ return nil
+ }
+}
+
+// ParseStructField configures how to parse Go struct fields. It can be used to customize struct field parsing.
+func ParseStructField(handler NativeTypesFieldNameHandler) NativeTypesOption {
+ return func(ntp *nativeTypeOptions) error {
+ ntp.fieldNameHandler = handler
+ return nil
+ }
+}
+
+func newNativeTypeProvider(tpOptions nativeTypeOptions, adapter types.Adapter, provider types.Provider, refTypes ...any) (*nativeTypeProvider, error) {
nativeTypes := make(map[string]*nativeType, len(refTypes))
for _, refType := range refTypes {
switch rt := refType.(type) {
case reflect.Type:
- t, err := newNativeType(rt)
+ result, err := newNativeTypes(tpOptions.fieldNameHandler, rt)
if err != nil {
return nil, err
}
- nativeTypes[t.TypeName()] = t
+ for idx := range result {
+ nativeTypes[result[idx].TypeName()] = result[idx]
+ }
case reflect.Value:
- t, err := newNativeType(rt.Type())
+ result, err := newNativeTypes(tpOptions.fieldNameHandler, rt.Type())
if err != nil {
return nil, err
}
- nativeTypes[t.TypeName()] = t
+ for idx := range result {
+ nativeTypes[result[idx].TypeName()] = result[idx]
+ }
default:
return nil, fmt.Errorf("unsupported native type: %v (%T) must be reflect.Type or reflect.Value", rt, rt)
}
@@ -117,23 +220,25 @@ func newNativeTypeProvider(adapter ref.TypeAdapter, provider ref.TypeProvider, r
nativeTypes: nativeTypes,
baseAdapter: adapter,
baseProvider: provider,
+ options: tpOptions,
}, nil
}
type nativeTypeProvider struct {
nativeTypes map[string]*nativeType
- baseAdapter ref.TypeAdapter
- baseProvider ref.TypeProvider
+ baseAdapter types.Adapter
+ baseProvider types.Provider
+ options nativeTypeOptions
}
-// EnumValue proxies to the ref.TypeProvider configured at the times the NativeTypes
+// EnumValue proxies to the types.Provider configured at the times the NativeTypes
// option was configured.
func (tp *nativeTypeProvider) EnumValue(enumName string) ref.Val {
return tp.baseProvider.EnumValue(enumName)
}
// FindIdent looks up natives type instances by qualified identifier, and if not found
-// proxies to the composed ref.TypeProvider.
+// proxies to the composed types.Provider.
func (tp *nativeTypeProvider) FindIdent(typeName string) (ref.Val, bool) {
if t, found := tp.nativeTypes[typeName]; found {
return t, true
@@ -141,41 +246,70 @@ func (tp *nativeTypeProvider) FindIdent(typeName string) (ref.Val, bool) {
return tp.baseProvider.FindIdent(typeName)
}
-// FindType looks up CEL type-checker type definition by qualified identifier, and if not found
-// proxies to the composed ref.TypeProvider.
-func (tp *nativeTypeProvider) FindType(typeName string) (*exprpb.Type, bool) {
+// FindStructType looks up the CEL type definition by qualified identifier, and if not found
+// proxies to the composed types.Provider.
+func (tp *nativeTypeProvider) FindStructType(typeName string) (*types.Type, bool) {
if _, found := tp.nativeTypes[typeName]; found {
- return decls.NewTypeType(decls.NewObjectType(typeName)), true
+ return types.NewTypeTypeWithParam(types.NewObjectType(typeName)), true
}
- return tp.baseProvider.FindType(typeName)
+ if celType, found := tp.baseProvider.FindStructType(typeName); found {
+ return celType, true
+ }
+ return tp.baseProvider.FindStructType(typeName)
}
-// FindFieldType looks up a native type's field definition, and if the type name is not a native
-// type then proxies to the composed ref.TypeProvider
-func (tp *nativeTypeProvider) FindFieldType(typeName, fieldName string) (*ref.FieldType, bool) {
+func toFieldName(fieldNameHandler NativeTypesFieldNameHandler, f reflect.StructField) string {
+ if fieldNameHandler == nil {
+ return f.Name
+ }
+
+ return fieldNameHandler(f)
+}
+
+// FindStructFieldNames looks up the type definition first from the native types, then from
+// the backing provider type set. If found, a set of field names corresponding to the type
+// will be returned.
+func (tp *nativeTypeProvider) FindStructFieldNames(typeName string) ([]string, bool) {
+ if t, found := tp.nativeTypes[typeName]; found {
+ fieldCount := t.refType.NumField()
+ fields := make([]string, fieldCount)
+ for i := 0; i < fieldCount; i++ {
+ fields[i] = toFieldName(tp.options.fieldNameHandler, t.refType.Field(i))
+ }
+ return fields, true
+ }
+ if celTypeFields, found := tp.baseProvider.FindStructFieldNames(typeName); found {
+ return celTypeFields, true
+ }
+ return tp.baseProvider.FindStructFieldNames(typeName)
+}
+
+// FindStructFieldType looks up a native type's field definition, and if the type name is not a native
+// type then proxies to the composed types.Provider
+func (tp *nativeTypeProvider) FindStructFieldType(typeName, fieldName string) (*types.FieldType, bool) {
t, found := tp.nativeTypes[typeName]
if !found {
- return tp.baseProvider.FindFieldType(typeName, fieldName)
+ return tp.baseProvider.FindStructFieldType(typeName, fieldName)
}
refField, isDefined := t.hasField(fieldName)
if !found || !isDefined {
return nil, false
}
- exprType, ok := convertToExprType(refField.Type)
+ celType, ok := convertToCelType(refField.Type)
if !ok {
return nil, false
}
- return &ref.FieldType{
- Type: exprType,
+ return &types.FieldType{
+ Type: celType,
IsSet: func(obj any) bool {
refVal := reflect.Indirect(reflect.ValueOf(obj))
- refField := refVal.FieldByName(fieldName)
+ refField := refVal.FieldByName(refField.Name)
return !refField.IsZero()
},
GetFrom: func(obj any) (any, error) {
refVal := reflect.Indirect(reflect.ValueOf(obj))
- refField := refVal.FieldByName(fieldName)
- return getFieldValue(tp, refField), nil
+ refField := refVal.FieldByName(refField.Name)
+ return getFieldValue(refField), nil
},
}, true
}
@@ -226,6 +360,9 @@ func (tp *nativeTypeProvider) NativeToValue(val any) ref.Val {
case []byte:
return tp.baseAdapter.NativeToValue(val)
default:
+ if refVal.Type().Elem() == reflect.TypeOf(byte(0)) {
+ return tp.baseAdapter.NativeToValue(val)
+ }
return types.NewDynamicList(tp, val)
}
case reflect.Map:
@@ -236,82 +373,81 @@ func (tp *nativeTypeProvider) NativeToValue(val any) ref.Val {
time.Time:
return tp.baseAdapter.NativeToValue(val)
default:
- return newNativeObject(tp, val, rawVal)
+ return tp.newNativeObject(val, rawVal)
}
default:
return tp.baseAdapter.NativeToValue(val)
}
}
-// convertToExprType converts the Golang reflect.Type to a protobuf exprpb.Type.
-func convertToExprType(refType reflect.Type) (*exprpb.Type, bool) {
+func convertToCelType(refType reflect.Type) (*cel.Type, bool) {
switch refType.Kind() {
case reflect.Bool:
- return decls.Bool, true
+ return cel.BoolType, true
case reflect.Float32, reflect.Float64:
- return decls.Double, true
+ return cel.DoubleType, true
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
if refType == durationType {
- return decls.Duration, true
+ return cel.DurationType, true
}
- return decls.Int, true
+ return cel.IntType, true
case reflect.String:
- return decls.String, true
+ return cel.StringType, true
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
- return decls.Uint, true
+ return cel.UintType, true
case reflect.Array, reflect.Slice:
refElem := refType.Elem()
if refElem == reflect.TypeOf(byte(0)) {
- return decls.Bytes, true
+ return cel.BytesType, true
}
- elemType, ok := convertToExprType(refElem)
+ elemType, ok := convertToCelType(refElem)
if !ok {
return nil, false
}
- return decls.NewListType(elemType), true
+ return cel.ListType(elemType), true
case reflect.Map:
- keyType, ok := convertToExprType(refType.Key())
+ keyType, ok := convertToCelType(refType.Key())
if !ok {
return nil, false
}
// Ensure the key type is a int, bool, uint, string
- elemType, ok := convertToExprType(refType.Elem())
+ elemType, ok := convertToCelType(refType.Elem())
if !ok {
return nil, false
}
- return decls.NewMapType(keyType, elemType), true
+ return cel.MapType(keyType, elemType), true
case reflect.Struct:
if refType == timestampType {
- return decls.Timestamp, true
+ return cel.TimestampType, true
}
- return decls.NewObjectType(
+ return cel.ObjectType(
fmt.Sprintf("%s.%s", simplePkgAlias(refType.PkgPath()), refType.Name()),
), true
case reflect.Pointer:
if refType.Implements(pbMsgInterfaceType) {
pbMsg := reflect.New(refType.Elem()).Interface().(protoreflect.ProtoMessage)
- return decls.NewObjectType(string(pbMsg.ProtoReflect().Descriptor().FullName())), true
+ return cel.ObjectType(string(pbMsg.ProtoReflect().Descriptor().FullName())), true
}
- return convertToExprType(refType.Elem())
+ return convertToCelType(refType.Elem())
}
return nil, false
}
-func newNativeObject(adapter ref.TypeAdapter, val any, refValue reflect.Value) ref.Val {
- valType, err := newNativeType(refValue.Type())
+func (tp *nativeTypeProvider) newNativeObject(val any, refValue reflect.Value) ref.Val {
+ valType, err := newNativeType(tp.options.fieldNameHandler, refValue.Type())
if err != nil {
return types.NewErr(err.Error())
}
return &nativeObj{
- TypeAdapter: adapter,
- val: val,
- valType: valType,
- refValue: refValue,
+ Adapter: tp,
+ val: val,
+ valType: valType,
+ refValue: refValue,
}
}
type nativeObj struct {
- ref.TypeAdapter
+ types.Adapter
val any
valType *nativeType
refValue reflect.Value
@@ -350,12 +486,13 @@ func (o *nativeObj) ConvertToNative(typeDesc reflect.Type) (any, error) {
if !fieldValue.IsValid() || fieldValue.IsZero() {
continue
}
+ fieldName := toFieldName(o.valType.fieldNameHandler, fieldType)
fieldCELVal := o.NativeToValue(fieldValue.Interface())
fieldJSONVal, err := fieldCELVal.ConvertToNative(jsonValueType)
if err != nil {
return nil, err
}
- fields[fieldType.Name] = fieldJSONVal.(*structpb.Value)
+ fields[fieldName] = fieldJSONVal.(*structpb.Value)
}
return &structpb.Struct{Fields: fields}, nil
}
@@ -447,7 +584,47 @@ func (o *nativeObj) Value() any {
return o.val
}
-func newNativeType(rawType reflect.Type) (*nativeType, error) {
+func newNativeTypes(fieldNameHandler NativeTypesFieldNameHandler, rawType reflect.Type) ([]*nativeType, error) {
+ nt, err := newNativeType(fieldNameHandler, rawType)
+ if err != nil {
+ return nil, err
+ }
+ result := []*nativeType{nt}
+
+ alreadySeen := make(map[string]struct{})
+ var iterateStructMembers func(reflect.Type)
+ iterateStructMembers = func(t reflect.Type) {
+ if k := t.Kind(); k == reflect.Pointer || k == reflect.Slice || k == reflect.Array || k == reflect.Map {
+ t = t.Elem()
+ }
+ if t.Kind() != reflect.Struct {
+ return
+ }
+ if _, seen := alreadySeen[t.String()]; seen {
+ return
+ }
+ alreadySeen[t.String()] = struct{}{}
+ nt, ntErr := newNativeType(fieldNameHandler, t)
+ if ntErr != nil {
+ err = ntErr
+ return
+ }
+ result = append(result, nt)
+
+ for idx := 0; idx < t.NumField(); idx++ {
+ iterateStructMembers(t.Field(idx).Type)
+ }
+ }
+ iterateStructMembers(rawType)
+
+ return result, err
+}
+
+var (
+ errDuplicatedFieldName = errors.New("field name already exists in struct")
+)
+
+func newNativeType(fieldNameHandler NativeTypesFieldNameHandler, rawType reflect.Type) (*nativeType, error) {
refType := rawType
if refType.Kind() == reflect.Pointer {
refType = refType.Elem()
@@ -455,15 +632,34 @@ func newNativeType(rawType reflect.Type) (*nativeType, error) {
if !isValidObjectType(refType) {
return nil, fmt.Errorf("unsupported reflect.Type %v, must be reflect.Struct", rawType)
}
+
+ // Since naming collisions can only happen with struct tag parsing, we only check for them if it is enabled.
+ if fieldNameHandler != nil {
+ fieldNames := make(map[string]struct{})
+
+ for idx := 0; idx < refType.NumField(); idx++ {
+ field := refType.Field(idx)
+ fieldName := toFieldName(fieldNameHandler, field)
+
+ if _, found := fieldNames[fieldName]; found {
+ return nil, fmt.Errorf("invalid field name `%s` in struct `%s`: %w", fieldName, refType.Name(), errDuplicatedFieldName)
+ } else {
+ fieldNames[fieldName] = struct{}{}
+ }
+ }
+ }
+
return &nativeType{
- typeName: fmt.Sprintf("%s.%s", simplePkgAlias(refType.PkgPath()), refType.Name()),
- refType: refType,
+ typeName: fmt.Sprintf("%s.%s", simplePkgAlias(refType.PkgPath()), refType.Name()),
+ refType: refType,
+ fieldNameHandler: fieldNameHandler,
}, nil
}
type nativeType struct {
- typeName string
- refType reflect.Type
+ typeName string
+ refType reflect.Type
+ fieldNameHandler NativeTypesFieldNameHandler
}
// ConvertToNative implements ref.Val.ConvertToNative.
@@ -511,31 +707,43 @@ func (t *nativeType) Value() any {
return t.typeName
}
+// fieldByName returns the corresponding reflect.StructField for the give name either by matching
+// field tag or field name.
+func (t *nativeType) fieldByName(fieldName string) (reflect.StructField, bool) {
+ if t.fieldNameHandler == nil {
+ return t.refType.FieldByName(fieldName)
+ }
+
+ for i := 0; i < t.refType.NumField(); i++ {
+ f := t.refType.Field(i)
+ if toFieldName(t.fieldNameHandler, f) == fieldName {
+ return f, true
+ }
+ }
+
+ return reflect.StructField{}, false
+}
+
// hasField returns whether a field name has a corresponding Golang reflect.StructField
func (t *nativeType) hasField(fieldName string) (reflect.StructField, bool) {
- f, found := t.refType.FieldByName(fieldName)
+ f, found := t.fieldByName(fieldName)
if !found || !f.IsExported() || !isSupportedType(f.Type) {
return reflect.StructField{}, false
}
return f, true
}
-func adaptFieldValue(adapter ref.TypeAdapter, refField reflect.Value) ref.Val {
- return adapter.NativeToValue(getFieldValue(adapter, refField))
+func adaptFieldValue(adapter types.Adapter, refField reflect.Value) ref.Val {
+ return adapter.NativeToValue(getFieldValue(refField))
}
-func getFieldValue(adapter ref.TypeAdapter, refField reflect.Value) any {
+func getFieldValue(refField reflect.Value) any {
if refField.IsZero() {
switch refField.Kind() {
- case reflect.Array, reflect.Slice:
- return types.NewDynamicList(adapter, []ref.Val{})
- case reflect.Map:
- return types.NewDynamicMap(adapter, map[ref.Val]ref.Val{})
case reflect.Struct:
if refField.Type() == timestampType {
- return types.Timestamp{Time: time.Unix(0, 0)}
+ return time.Unix(0, 0)
}
- return reflect.New(refField.Type()).Elem().Interface()
case reflect.Pointer:
return reflect.New(refField.Type().Elem()).Interface()
}
diff --git a/vendor/github.com/google/cel-go/ext/protos.go b/vendor/github.com/google/cel-go/ext/protos.go
index b905e71..68796f6 100644
--- a/vendor/github.com/google/cel-go/ext/protos.go
+++ b/vendor/github.com/google/cel-go/ext/protos.go
@@ -16,9 +16,7 @@ package ext
import (
"github.com/google/cel-go/cel"
- "github.com/google/cel-go/common"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/ast"
)
// Protos returns a cel.EnvOption to configure extended macros and functions for
@@ -73,9 +71,9 @@ func (protoLib) CompileOptions() []cel.EnvOption {
return []cel.EnvOption{
cel.Macros(
// proto.getExt(msg, select_expression)
- cel.NewReceiverMacro(getExtension, 2, getProtoExt),
+ cel.ReceiverMacro(getExtension, 2, getProtoExt),
// proto.hasExt(msg, select_expression)
- cel.NewReceiverMacro(hasExtension, 2, hasProtoExt),
+ cel.ReceiverMacro(hasExtension, 2, hasProtoExt),
),
}
}
@@ -86,59 +84,56 @@ func (protoLib) ProgramOptions() []cel.ProgramOption {
}
// hasProtoExt generates a test-only select expression for a fully-qualified extension name on a protobuf message.
-func hasProtoExt(meh cel.MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func hasProtoExt(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
if !macroTargetMatchesNamespace(protoNamespace, target) {
return nil, nil
}
- extensionField, err := getExtFieldName(meh, args[1])
+ extensionField, err := getExtFieldName(mef, args[1])
if err != nil {
return nil, err
}
- return meh.PresenceTest(args[0], extensionField), nil
+ return mef.NewPresenceTest(args[0], extensionField), nil
}
// getProtoExt generates a select expression for a fully-qualified extension name on a protobuf message.
-func getProtoExt(meh cel.MacroExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func getProtoExt(mef cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *cel.Error) {
if !macroTargetMatchesNamespace(protoNamespace, target) {
return nil, nil
}
- extFieldName, err := getExtFieldName(meh, args[1])
+ extFieldName, err := getExtFieldName(mef, args[1])
if err != nil {
return nil, err
}
- return meh.Select(args[0], extFieldName), nil
+ return mef.NewSelect(args[0], extFieldName), nil
}
-func getExtFieldName(meh cel.MacroExprHelper, expr *exprpb.Expr) (string, *common.Error) {
+func getExtFieldName(mef cel.MacroExprFactory, expr ast.Expr) (string, *cel.Error) {
isValid := false
extensionField := ""
- switch expr.GetExprKind().(type) {
- case *exprpb.Expr_SelectExpr:
+ switch expr.Kind() {
+ case ast.SelectKind:
extensionField, isValid = validateIdentifier(expr)
}
if !isValid {
- return "", &common.Error{
- Message: "invalid extension field",
- Location: meh.OffsetLocation(expr.GetId()),
- }
+ return "", mef.NewError(expr.ID(), "invalid extension field")
}
return extensionField, nil
}
-func validateIdentifier(expr *exprpb.Expr) (string, bool) {
- switch expr.GetExprKind().(type) {
- case *exprpb.Expr_IdentExpr:
- return expr.GetIdentExpr().GetName(), true
- case *exprpb.Expr_SelectExpr:
- sel := expr.GetSelectExpr()
- if sel.GetTestOnly() {
+func validateIdentifier(expr ast.Expr) (string, bool) {
+ switch expr.Kind() {
+ case ast.IdentKind:
+ return expr.AsIdent(), true
+ case ast.SelectKind:
+ sel := expr.AsSelect()
+ if sel.IsTestOnly() {
return "", false
}
- opStr, isIdent := validateIdentifier(sel.GetOperand())
+ opStr, isIdent := validateIdentifier(sel.Operand())
if !isIdent {
return "", false
}
- return opStr + "." + sel.GetField(), true
+ return opStr + "." + sel.FieldName(), true
default:
return "", false
}
diff --git a/vendor/github.com/google/cel-go/ext/sets.go b/vendor/github.com/google/cel-go/ext/sets.go
index 4820d61..7e94166 100644
--- a/vendor/github.com/google/cel-go/ext/sets.go
+++ b/vendor/github.com/google/cel-go/ext/sets.go
@@ -15,10 +15,16 @@
package ext
import (
+ "math"
+
"github.com/google/cel-go/cel"
+ "github.com/google/cel-go/checker"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/operators"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
+ "github.com/google/cel-go/interpreter"
)
// Sets returns a cel.EnvOption to configure namespaced set relationship
@@ -95,12 +101,86 @@ func (setsLib) CompileOptions() []cel.EnvOption {
cel.Function("sets.intersects",
cel.Overload("list_sets_intersects_list", []*cel.Type{listType, listType}, cel.BoolType,
cel.BinaryBinding(setsIntersects))),
+ cel.CostEstimatorOptions(
+ checker.OverloadCostEstimate("list_sets_contains_list", estimateSetsCost(1)),
+ checker.OverloadCostEstimate("list_sets_intersects_list", estimateSetsCost(1)),
+ // equivalence requires potentially two m*n comparisons to ensure each list is contained by the other
+ checker.OverloadCostEstimate("list_sets_equivalent_list", estimateSetsCost(2)),
+ ),
}
}
// ProgramOptions implements the Library interface method.
func (setsLib) ProgramOptions() []cel.ProgramOption {
- return []cel.ProgramOption{}
+ return []cel.ProgramOption{
+ cel.CostTrackerOptions(
+ interpreter.OverloadCostTracker("list_sets_contains_list", trackSetsCost(1)),
+ interpreter.OverloadCostTracker("list_sets_intersects_list", trackSetsCost(1)),
+ interpreter.OverloadCostTracker("list_sets_equivalent_list", trackSetsCost(2)),
+ ),
+ }
+}
+
+// NewSetMembershipOptimizer rewrites set membership tests using the `in` operator against a list
+// of constant values of enum, int, uint, string, or boolean type into a set membership test against
+// a map where the map keys are the elements of the list.
+func NewSetMembershipOptimizer() (cel.ASTOptimizer, error) {
+ return setsLib{}, nil
+}
+
+func (setsLib) Optimize(ctx *cel.OptimizerContext, a *ast.AST) *ast.AST {
+ root := ast.NavigateAST(a)
+ matches := ast.MatchDescendants(root, matchInConstantList(a))
+ for _, match := range matches {
+ call := match.AsCall()
+ listArg := call.Args()[1]
+ entries := make([]ast.EntryExpr, len(listArg.AsList().Elements()))
+ for i, elem := range listArg.AsList().Elements() {
+ var entry ast.EntryExpr
+ if r, found := a.ReferenceMap()[elem.ID()]; found && r.Value != nil {
+ entry = ctx.NewMapEntry(ctx.NewLiteral(r.Value), ctx.NewLiteral(types.True), false)
+ } else {
+ entry = ctx.NewMapEntry(elem, ctx.NewLiteral(types.True), false)
+ }
+ entries[i] = entry
+ }
+ mapArg := ctx.NewMap(entries)
+ ctx.UpdateExpr(listArg, mapArg)
+ }
+ return a
+}
+
+func matchInConstantList(a *ast.AST) ast.ExprMatcher {
+ return func(e ast.NavigableExpr) bool {
+ if e.Kind() != ast.CallKind {
+ return false
+ }
+ call := e.AsCall()
+ if call.FunctionName() != operators.In {
+ return false
+ }
+ aggregateVal := call.Args()[1]
+ if aggregateVal.Kind() != ast.ListKind {
+ return false
+ }
+ listVal := aggregateVal.AsList()
+ for _, elem := range listVal.Elements() {
+ if r, found := a.ReferenceMap()[elem.ID()]; found {
+ if r.Value != nil {
+ continue
+ }
+ }
+ if elem.Kind() != ast.LiteralKind {
+ return false
+ }
+ lit := elem.AsLiteral()
+ if !(lit.Type() == cel.StringType || lit.Type() == cel.IntType ||
+ lit.Type() == cel.UintType || lit.Type() == cel.BoolType) {
+ return false
+ }
+ }
+ return true
+ }
}
func setsIntersects(listA, listB ref.Val) ref.Val {
@@ -136,3 +216,46 @@ func setsEquivalent(listA, listB ref.Val) ref.Val {
}
return setsContains(listB, listA)
}
+
+func estimateSetsCost(costFactor float64) checker.FunctionEstimator {
+ return func(estimator checker.CostEstimator, target *checker.AstNode, args []checker.AstNode) *checker.CallEstimate {
+ if len(args) == 2 {
+ arg0Size := estimateSize(estimator, args[0])
+ arg1Size := estimateSize(estimator, args[1])
+ costEstimate := arg0Size.Multiply(arg1Size).MultiplyByCostFactor(costFactor).Add(callCostEstimate)
+ return &checker.CallEstimate{CostEstimate: costEstimate}
+ }
+ return nil
+ }
+}
+
+func estimateSize(estimator checker.CostEstimator, node checker.AstNode) checker.SizeEstimate {
+ if l := node.ComputedSize(); l != nil {
+ return *l
+ }
+ if l := estimator.EstimateSize(node); l != nil {
+ return *l
+ }
+ return checker.SizeEstimate{Min: 0, Max: math.MaxUint64}
+}
+
+func trackSetsCost(costFactor float64) interpreter.FunctionTracker {
+ return func(args []ref.Val, _ ref.Val) *uint64 {
+ lhsSize := actualSize(args[0])
+ rhsSize := actualSize(args[1])
+ cost := callCost + uint64(float64(lhsSize*rhsSize)*costFactor)
+ return &cost
+ }
+}
+
+func actualSize(value ref.Val) uint64 {
+ if sz, ok := value.(traits.Sizer); ok {
+ return uint64(sz.Size().(types.Int))
+ }
+ return 1
+}
+
+var (
+ callCostEstimate = checker.CostEstimate{Min: 1, Max: 1}
+ callCost = uint64(1)
+)
diff --git a/vendor/github.com/google/cel-go/ext/strings.go b/vendor/github.com/google/cel-go/ext/strings.go
index 8455d58..2e590a4 100644
--- a/vendor/github.com/google/cel-go/ext/strings.go
+++ b/vendor/github.com/google/cel-go/ext/strings.go
@@ -21,19 +21,16 @@ import (
"fmt"
"math"
"reflect"
- "sort"
"strings"
"unicode"
"unicode/utf8"
"golang.org/x/text/language"
- "golang.org/x/text/message"
"github.com/google/cel-go/cel"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
- "github.com/google/cel-go/interpreter"
)
const (
@@ -99,7 +96,7 @@ const (
// "a map inside a list: %s".format([[1, 2, 3, {"a": "x", "b": "y", "c": "z"}]]) // returns "a map inside a list: [1, 2, 3, {"a":"x", "b":"y", "c":"d"}]"
// "true bool: %s - false bool: %s\nbinary bool: %b".format([true, false, true]) // returns "true bool: true - false bool: false\nbinary bool: 1"
//
-// Passing an incorrect type (an integer to `%s`) is considered an error, as well as attempting
+// Passing an incorrect type (a string to `%b`) is considered an error, as well as attempting
// to use more formatting clauses than there are arguments (`%d %d %d` while passing two ints, for instance).
// If compile-time checking is enabled, and the formatting string is a constant, and the argument list is a literal,
// then letting any arguments go unused/unformatted is also considered an error.
@@ -122,7 +119,8 @@ const (
// 'hello mellow'.indexOf('jello') // returns -1
// 'hello mellow'.indexOf('', 2) // returns 2
// 'hello mellow'.indexOf('ello', 2) // returns 7
-// 'hello mellow'.indexOf('ello', 20) // error
+// 'hello mellow'.indexOf('ello', 20) // returns -1
+// 'hello mellow'.indexOf('ello', -1) // error
//
// # Join
//
@@ -158,6 +156,7 @@ const (
// 'hello mellow'.lastIndexOf('ello') // returns 7
// 'hello mellow'.lastIndexOf('jello') // returns -1
// 'hello mellow'.lastIndexOf('ello', 6) // returns 1
+// 'hello mellow'.lastIndexOf('ello', 20) // returns -1
// 'hello mellow'.lastIndexOf('ello', -1) // error
//
// # LowerAscii
@@ -173,7 +172,7 @@ const (
// 'TacoCat'.lowerAscii() // returns 'tacocat'
// 'TacoCÆt Xii'.lowerAscii() // returns 'tacocÆt xii'
//
-// # Quote
+// # Strings.Quote
//
// Introduced in version: 1
//
@@ -205,6 +204,8 @@ const (
// 'hello hello'.replace('he', 'we', -1) // returns 'wello wello'
// 'hello hello'.replace('he', 'we', 1) // returns 'wello hello'
// 'hello hello'.replace('he', 'we', 0) // returns 'hello hello'
+// 'hello hello'.replace('', '_') // returns '_h_e_l_l_o_ _h_e_l_l_o_'
+// 'hello hello'.replace('h', '') // returns 'ello ello'
//
// # Split
//
@@ -270,8 +271,26 @@ const (
//
// 'TacoCat'.upperAscii() // returns 'TACOCAT'
// 'TacoCÆt Xii'.upperAscii() // returns 'TACOCÆT XII'
+//
+// # Reverse
+//
+// Introduced at version: 3
+//
+// Returns a new string whose characters are the same as the target string, only formatted in
+// reverse order.
+// This function relies on converting strings to rune arrays in order to reverse
+//
+// <string>.reverse() -> <string>
+//
+// Examples:
+//
+// 'gums'.reverse() // returns 'smug'
+// 'John Smith'.reverse() // returns 'htimS nhoJ'
func Strings(options ...StringsOption) cel.EnvOption {
- s := &stringLib{version: math.MaxUint32}
+ s := &stringLib{
+ version: math.MaxUint32,
+ validateFormat: true,
+ }
for _, o := range options {
s = o(s)
}
@@ -279,8 +298,9 @@ func Strings(options ...StringsOption) cel.EnvOption {
}
type stringLib struct {
- locale string
- version uint32
+ locale string
+ version uint32
+ validateFormat bool
}
// LibraryName implements the SingletonLibrary interface method.
@@ -301,26 +321,39 @@ func StringsLocale(locale string) StringsOption {
}
}
-// StringsVersion configures the version of the string library. The version limits which
-// functions are available. Only functions introduced below or equal to the given
-// version included in the library. See the library documentation to determine
-// which version a function was introduced at. If the documentation does not
-// state which version a function was introduced at, it can be assumed to be
-// introduced at version 0, when the library was first created.
-// If this option is not set, all functions are available.
-func StringsVersion(version uint32) func(lib *stringLib) *stringLib {
- return func(sl *stringLib) *stringLib {
- sl.version = version
- return sl
+// StringsVersion configures the version of the string library.
+//
+// The version limits which functions are available. Only functions introduced
+// below or equal to the given version included in the library. If this option
+// is not set, all functions are available.
+//
+// See the library documentation to determine which version a function was introduced.
+// If the documentation does not state which version a function was introduced, it can
+// be assumed to be introduced at version 0, when the library was first created.
+func StringsVersion(version uint32) StringsOption {
+ return func(lib *stringLib) *stringLib {
+ lib.version = version
+ return lib
+ }
+}
+
+// StringsValidateFormatCalls validates type-checked ASTs to ensure that string.format() calls have
+// valid formatting clauses and valid argument types for each clause.
+//
+// Enabled by default.
+func StringsValidateFormatCalls(value bool) StringsOption {
+ return func(s *stringLib) *stringLib {
+ s.validateFormat = value
+ return s
}
}
// CompileOptions implements the Library interface method.
-func (sl *stringLib) CompileOptions() []cel.EnvOption {
+func (lib *stringLib) CompileOptions() []cel.EnvOption {
formatLocale := "en_US"
- if sl.locale != "" {
+ if lib.locale != "" {
// ensure locale is properly-formed if set
- _, err := language.Parse(sl.locale)
+ _, err := language.Parse(lib.locale)
if err != nil {
return []cel.EnvOption{
func(e *cel.Env) (*cel.Env, error) {
@@ -328,7 +361,7 @@ func (sl *stringLib) CompileOptions() []cel.EnvOption {
},
}
}
- formatLocale = sl.locale
+ formatLocale = lib.locale
}
opts := []cel.EnvOption{
@@ -432,22 +465,24 @@ func (sl *stringLib) CompileOptions() []cel.EnvOption {
return stringOrError(upperASCII(string(s)))
}))),
}
- if sl.version >= 1 {
+ if lib.version >= 1 {
opts = append(opts, cel.Function("format",
cel.MemberOverload("string_format", []*cel.Type{cel.StringType, cel.ListType(cel.DynType)}, cel.StringType,
cel.FunctionBinding(func(args ...ref.Val) ref.Val {
s := string(args[0].(types.String))
formatArgs := args[1].(traits.Lister)
- return stringOrError(interpreter.ParseFormatString(s, &stringFormatter{}, &stringArgList{formatArgs}, formatLocale))
+ return stringOrError(parseFormatString(s, &stringFormatter{}, &stringArgList{formatArgs}, formatLocale))
}))),
cel.Function("strings.quote", cel.Overload("strings_quote", []*cel.Type{cel.StringType}, cel.StringType,
cel.UnaryBinding(func(str ref.Val) ref.Val {
s := str.(types.String)
return stringOrError(quote(string(s)))
- }))))
+ }))),
+
+ cel.ASTValidators(stringFormatValidator{}))
}
- if sl.version >= 2 {
+ if lib.version >= 2 {
opts = append(opts,
cel.Function("join",
cel.MemberOverload("list_join", []*cel.Type{cel.ListType(cel.StringType)}, cel.StringType,
@@ -469,7 +504,7 @@ func (sl *stringLib) CompileOptions() []cel.EnvOption {
cel.UnaryBinding(func(list ref.Val) ref.Val {
l, err := list.ConvertToNative(stringListType)
if err != nil {
- return types.NewErr(err.Error())
+ return types.WrapErr(err)
}
return stringOrError(join(l.([]string)))
})),
@@ -477,13 +512,26 @@ func (sl *stringLib) CompileOptions() []cel.EnvOption {
cel.BinaryBinding(func(list, delim ref.Val) ref.Val {
l, err := list.ConvertToNative(stringListType)
if err != nil {
- return types.NewErr(err.Error())
+ return types.WrapErr(err)
}
d := delim.(types.String)
return stringOrError(joinSeparator(l.([]string), string(d)))
}))),
)
}
+ if lib.version >= 3 {
+ opts = append(opts,
+ cel.Function("reverse",
+ cel.MemberOverload("string_reverse", []*cel.Type{cel.StringType}, cel.StringType,
+ cel.UnaryBinding(func(str ref.Val) ref.Val {
+ s := str.(types.String)
+ return stringOrError(reverse(string(s)))
+ }))),
+ )
+ }
+ if lib.validateFormat {
+ opts = append(opts, cel.ASTValidators(stringFormatValidator{}))
+ }
return opts
}
@@ -515,9 +563,13 @@ func indexOfOffset(str, substr string, offset int64) (int64, error) {
off := int(offset)
runes := []rune(str)
subrunes := []rune(substr)
- if off < 0 || off >= len(runes) {
+ if off < 0 {
return -1, fmt.Errorf("index out of range: %d", off)
}
+ // If the offset exceeds the length, return -1 rather than error.
+ if off >= len(runes) {
+ return -1, nil
+ }
for i := off; i < len(runes)-(len(subrunes)-1); i++ {
found := true
for j := 0; j < len(subrunes); j++ {
@@ -548,9 +600,13 @@ func lastIndexOfOffset(str, substr string, offset int64) (int64, error) {
off := int(offset)
runes := []rune(str)
subrunes := []rune(substr)
- if off < 0 || off >= len(runes) {
+ if off < 0 {
return -1, fmt.Errorf("index out of range: %d", off)
}
+ // If the offset is far greater than the length return -1
+ if off >= len(runes) {
+ return -1, nil
+ }
if off > len(runes)-len(subrunes) {
off = len(runes) - len(subrunes)
}
@@ -634,6 +690,14 @@ func upperASCII(str string) (string, error) {
return string(runes), nil
}
+func reverse(str string) (string, error) {
+ chars := []rune(str)
+ for i, j := 0, len(chars)-1; i < j; i, j = i+1, j-1 {
+ chars[i], chars[j] = chars[j], chars[i]
+ }
+ return string(chars), nil
+}
+
func joinSeparator(strs []string, separator string) (string, error) {
return strings.Join(strs, separator), nil
}
@@ -659,238 +723,6 @@ func joinValSeparator(strs traits.Lister, separator string) (string, error) {
return sb.String(), nil
}
-type clauseImpl func(ref.Val, string) (string, error)
-
-func clauseForType(argType ref.Type) (clauseImpl, error) {
- switch argType {
- case types.IntType, types.UintType:
- return formatDecimal, nil
- case types.StringType, types.BytesType, types.BoolType, types.NullType, types.TypeType:
- return FormatString, nil
- case types.TimestampType, types.DurationType:
- // special case to ensure timestamps/durations get printed as CEL literals
- return func(arg ref.Val, locale string) (string, error) {
- argStrVal := arg.ConvertToType(types.StringType)
- argStr := argStrVal.Value().(string)
- if arg.Type() == types.TimestampType {
- return fmt.Sprintf("timestamp(%q)", argStr), nil
- }
- if arg.Type() == types.DurationType {
- return fmt.Sprintf("duration(%q)", argStr), nil
- }
- return "", fmt.Errorf("cannot convert argument of type %s to timestamp/duration", arg.Type().TypeName())
- }, nil
- case types.ListType:
- return formatList, nil
- case types.MapType:
- return formatMap, nil
- case types.DoubleType:
- // avoid formatFixed so we can output a period as the decimal separator in order
- // to always be a valid CEL literal
- return func(arg ref.Val, locale string) (string, error) {
- argDouble, ok := arg.Value().(float64)
- if !ok {
- return "", fmt.Errorf("couldn't convert %s to float64", arg.Type().TypeName())
- }
- fmtStr := fmt.Sprintf("%%.%df", defaultPrecision)
- return fmt.Sprintf(fmtStr, argDouble), nil
- }, nil
- case types.TypeType:
- return func(arg ref.Val, locale string) (string, error) {
- return fmt.Sprintf("type(%s)", arg.Value().(string)), nil
- }, nil
- default:
- return nil, fmt.Errorf("no formatting function for %s", argType.TypeName())
- }
-}
-
-func formatList(arg ref.Val, locale string) (string, error) {
- argList := arg.(traits.Lister)
- argIterator := argList.Iterator()
- var listStrBuilder strings.Builder
- _, err := listStrBuilder.WriteRune('[')
- if err != nil {
- return "", fmt.Errorf("error writing to list string: %w", err)
- }
- for argIterator.HasNext() == types.True {
- member := argIterator.Next()
- memberFormat, err := clauseForType(member.Type())
- if err != nil {
- return "", err
- }
- unquotedStr, err := memberFormat(member, locale)
- if err != nil {
- return "", err
- }
- str := quoteForCEL(member, unquotedStr)
- _, err = listStrBuilder.WriteString(str)
- if err != nil {
- return "", fmt.Errorf("error writing to list string: %w", err)
- }
- if argIterator.HasNext() == types.True {
- _, err = listStrBuilder.WriteString(", ")
- if err != nil {
- return "", fmt.Errorf("error writing to list string: %w", err)
- }
- }
- }
- _, err = listStrBuilder.WriteRune(']')
- if err != nil {
- return "", fmt.Errorf("error writing to list string: %w", err)
- }
- return listStrBuilder.String(), nil
-}
-
-func formatMap(arg ref.Val, locale string) (string, error) {
- argMap := arg.(traits.Mapper)
- argIterator := argMap.Iterator()
- type mapPair struct {
- key string
- value string
- }
- argPairs := make([]mapPair, argMap.Size().Value().(int64))
- i := 0
- for argIterator.HasNext() == types.True {
- key := argIterator.Next()
- var keyFormat clauseImpl
- switch key.Type() {
- case types.StringType, types.BoolType:
- keyFormat = FormatString
- case types.IntType, types.UintType:
- keyFormat = formatDecimal
- default:
- return "", fmt.Errorf("no formatting function for map key of type %s", key.Type().TypeName())
- }
- unquotedKeyStr, err := keyFormat(key, locale)
- if err != nil {
- return "", err
- }
- keyStr := quoteForCEL(key, unquotedKeyStr)
- value, found := argMap.Find(key)
- if !found {
- return "", fmt.Errorf("could not find key: %q", key)
- }
- valueFormat, err := clauseForType(value.Type())
- if err != nil {
- return "", err
- }
- unquotedValueStr, err := valueFormat(value, locale)
- if err != nil {
- return "", err
- }
- valueStr := quoteForCEL(value, unquotedValueStr)
- argPairs[i] = mapPair{keyStr, valueStr}
- i++
- }
- sort.SliceStable(argPairs, func(x, y int) bool {
- return argPairs[x].key < argPairs[y].key
- })
- var mapStrBuilder strings.Builder
- _, err := mapStrBuilder.WriteRune('{')
- if err != nil {
- return "", fmt.Errorf("error writing to map string: %w", err)
- }
- for i, entry := range argPairs {
- _, err = mapStrBuilder.WriteString(fmt.Sprintf("%s:%s", entry.key, entry.value))
- if err != nil {
- return "", fmt.Errorf("error writing to map string: %w", err)
- }
- if i < len(argPairs)-1 {
- _, err = mapStrBuilder.WriteString(", ")
- if err != nil {
- return "", fmt.Errorf("error writing to map string: %w", err)
- }
- }
- }
- _, err = mapStrBuilder.WriteRune('}')
- if err != nil {
- return "", fmt.Errorf("error writing to map string: %w", err)
- }
- return mapStrBuilder.String(), nil
-}
-
-// quoteForCEL takes a formatted, unquoted value and quotes it in a manner
-// suitable for embedding directly in CEL.
-func quoteForCEL(refVal ref.Val, unquotedValue string) string {
- switch refVal.Type() {
- case types.StringType:
- return fmt.Sprintf("%q", unquotedValue)
- case types.BytesType:
- return fmt.Sprintf("b%q", unquotedValue)
- case types.DoubleType:
- // special case to handle infinity/NaN
- num := refVal.Value().(float64)
- if math.IsInf(num, 1) || math.IsInf(num, -1) || math.IsNaN(num) {
- return fmt.Sprintf("%q", unquotedValue)
- }
- return unquotedValue
- default:
- return unquotedValue
- }
-}
-
-// FormatString returns the string representation of a CEL value.
-// It is used to implement the %s specifier in the (string).format() extension
-// function.
-func FormatString(arg ref.Val, locale string) (string, error) {
- switch arg.Type() {
- case types.ListType:
- return formatList(arg, locale)
- case types.MapType:
- return formatMap(arg, locale)
- case types.IntType, types.UintType, types.DoubleType,
- types.BoolType, types.StringType, types.TimestampType, types.BytesType, types.DurationType, types.TypeType:
- argStrVal := arg.ConvertToType(types.StringType)
- argStr, ok := argStrVal.Value().(string)
- if !ok {
- return "", fmt.Errorf("could not convert argument %q to string", argStrVal)
- }
- return argStr, nil
- case types.NullType:
- return "null", nil
- default:
- return "", fmt.Errorf("string clause can only be used on strings, bools, bytes, ints, doubles, maps, lists, types, durations, and timestamps, was given %s", arg.Type().TypeName())
- }
-}
-
-func formatDecimal(arg ref.Val, locale string) (string, error) {
- switch arg.Type() {
- case types.IntType:
- argInt, ok := arg.ConvertToType(types.IntType).Value().(int64)
- if !ok {
- return "", fmt.Errorf("could not convert \"%s\" to int64", arg.Value())
- }
- return fmt.Sprintf("%d", argInt), nil
- case types.UintType:
- argInt, ok := arg.ConvertToType(types.UintType).Value().(uint64)
- if !ok {
- return "", fmt.Errorf("could not convert \"%s\" to uint64", arg.Value())
- }
- return fmt.Sprintf("%d", argInt), nil
- default:
- return "", fmt.Errorf("decimal clause can only be used on integers, was given %s", arg.Type().TypeName())
- }
-}
-
-func matchLanguage(locale string) (language.Tag, error) {
- matcher, err := makeMatcher(locale)
- if err != nil {
- return language.Und, err
- }
- tag, _ := language.MatchStrings(matcher, locale)
- return tag, nil
-}
-
-func makeMatcher(locale string) (language.Matcher, error) {
- tags := make([]language.Tag, 0)
- tag, err := language.Parse(locale)
- if err != nil {
- return nil, err
- }
- tags = append(tags, tag)
- return language.NewMatcher(tags), nil
-}
-
// quote implements a string quoting function. The string will be wrapped in
// double quotes, and all valid CEL escape sequences will be escaped to show up
// literally if printed. If the input contains any invalid UTF-8, the invalid runes
@@ -938,156 +770,6 @@ func sanitize(s string) string {
return sanitizedStringBuilder.String()
}
-type stringFormatter struct{}
-
-func (c *stringFormatter) String(arg ref.Val, locale string) (string, error) {
- return FormatString(arg, locale)
-}
-
-func (c *stringFormatter) Decimal(arg ref.Val, locale string) (string, error) {
- return formatDecimal(arg, locale)
-}
-
-func (c *stringFormatter) Fixed(precision *int) func(ref.Val, string) (string, error) {
- if precision == nil {
- precision = new(int)
- *precision = defaultPrecision
- }
- return func(arg ref.Val, locale string) (string, error) {
- strException := false
- if arg.Type() == types.StringType {
- argStr := arg.Value().(string)
- if argStr == "NaN" || argStr == "Infinity" || argStr == "-Infinity" {
- strException = true
- }
- }
- if arg.Type() != types.DoubleType && !strException {
- return "", fmt.Errorf("fixed-point clause can only be used on doubles, was given %s", arg.Type().TypeName())
- }
- argFloatVal := arg.ConvertToType(types.DoubleType)
- argFloat, ok := argFloatVal.Value().(float64)
- if !ok {
- return "", fmt.Errorf("could not convert \"%s\" to float64", argFloatVal.Value())
- }
- fmtStr := fmt.Sprintf("%%.%df", *precision)
-
- matchedLocale, err := matchLanguage(locale)
- if err != nil {
- return "", fmt.Errorf("error matching locale: %w", err)
- }
- return message.NewPrinter(matchedLocale).Sprintf(fmtStr, argFloat), nil
- }
-}
-
-func (c *stringFormatter) Scientific(precision *int) func(ref.Val, string) (string, error) {
- if precision == nil {
- precision = new(int)
- *precision = defaultPrecision
- }
- return func(arg ref.Val, locale string) (string, error) {
- strException := false
- if arg.Type() == types.StringType {
- argStr := arg.Value().(string)
- if argStr == "NaN" || argStr == "Infinity" || argStr == "-Infinity" {
- strException = true
- }
- }
- if arg.Type() != types.DoubleType && !strException {
- return "", fmt.Errorf("scientific clause can only be used on doubles, was given %s", arg.Type().TypeName())
- }
- argFloatVal := arg.ConvertToType(types.DoubleType)
- argFloat, ok := argFloatVal.Value().(float64)
- if !ok {
- return "", fmt.Errorf("could not convert \"%s\" to float64", argFloatVal.Value())
- }
- matchedLocale, err := matchLanguage(locale)
- if err != nil {
- return "", fmt.Errorf("error matching locale: %w", err)
- }
- fmtStr := fmt.Sprintf("%%%de", *precision)
- return message.NewPrinter(matchedLocale).Sprintf(fmtStr, argFloat), nil
- }
-}
-
-func (c *stringFormatter) Binary(arg ref.Val, locale string) (string, error) {
- switch arg.Type() {
- case types.IntType:
- argInt := arg.Value().(int64)
- // locale is intentionally unused as integers formatted as binary
- // strings are locale-independent
- return fmt.Sprintf("%b", argInt), nil
- case types.UintType:
- argInt := arg.Value().(uint64)
- return fmt.Sprintf("%b", argInt), nil
- case types.BoolType:
- argBool := arg.Value().(bool)
- if argBool {
- return "1", nil
- }
- return "0", nil
- default:
- return "", fmt.Errorf("only integers and bools can be formatted as binary, was given %s", arg.Type().TypeName())
- }
-}
-
-func (c *stringFormatter) Hex(useUpper bool) func(ref.Val, string) (string, error) {
- return func(arg ref.Val, locale string) (string, error) {
- fmtStr := "%x"
- if useUpper {
- fmtStr = "%X"
- }
- switch arg.Type() {
- case types.StringType, types.BytesType:
- if arg.Type() == types.BytesType {
- return fmt.Sprintf(fmtStr, arg.Value().([]byte)), nil
- }
- return fmt.Sprintf(fmtStr, arg.Value().(string)), nil
- case types.IntType:
- argInt, ok := arg.Value().(int64)
- if !ok {
- return "", fmt.Errorf("could not convert \"%s\" to int64", arg.Value())
- }
- return fmt.Sprintf(fmtStr, argInt), nil
- case types.UintType:
- argInt, ok := arg.Value().(uint64)
- if !ok {
- return "", fmt.Errorf("could not convert \"%s\" to uint64", arg.Value())
- }
- return fmt.Sprintf(fmtStr, argInt), nil
- default:
- return "", fmt.Errorf("only integers, byte buffers, and strings can be formatted as hex, was given %s", arg.Type().TypeName())
- }
- }
-}
-
-func (c *stringFormatter) Octal(arg ref.Val, locale string) (string, error) {
- switch arg.Type() {
- case types.IntType:
- argInt := arg.Value().(int64)
- return fmt.Sprintf("%o", argInt), nil
- case types.UintType:
- argInt := arg.Value().(uint64)
- return fmt.Sprintf("%o", argInt), nil
- default:
- return "", fmt.Errorf("octal clause can only be used on integers, was given %s", arg.Type().TypeName())
- }
-}
-
-type stringArgList struct {
- args traits.Lister
-}
-
-func (c *stringArgList) Arg(index int64) (ref.Val, error) {
- if index >= c.args.Size().Value().(int64) {
- return nil, fmt.Errorf("index %d out of range", index)
- }
- return c.args.Get(types.Int(index)), nil
-}
-
-func (c *stringArgList) ArgSize() int64 {
- return c.args.Size().Value().(int64)
-}
-
var (
stringListType = reflect.TypeOf([]string{})
)
diff --git a/vendor/github.com/google/cel-go/interpreter/BUILD.bazel b/vendor/github.com/google/cel-go/interpreter/BUILD.bazel
index c6a6206..220e23d 100644
--- a/vendor/github.com/google/cel-go/interpreter/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/interpreter/BUILD.bazel
@@ -14,7 +14,6 @@ go_library(
"decorators.go",
"dispatcher.go",
"evalstate.go",
- "formatting.go",
"interpretable.go",
"interpreter.go",
"optimizations.go",
@@ -25,14 +24,15 @@ go_library(
importpath = "github.com/google/cel-go/interpreter",
deps = [
"//common:go_default_library",
+ "//common/ast:go_default_library",
"//common/containers:go_default_library",
+ "//common/functions:go_default_library",
"//common/operators:go_default_library",
"//common/overloads:go_default_library",
"//common/types:go_default_library",
"//common/types/ref:go_default_library",
"//common/types/traits:go_default_library",
- "//interpreter/functions:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//types/known/durationpb:go_default_library",
"@org_golang_google_protobuf//types/known/structpb:go_default_library",
@@ -49,23 +49,25 @@ go_test(
"attributes_test.go",
"interpreter_test.go",
"prune_test.go",
+ "runtimecost_test.go",
],
embed = [
":go_default_library",
],
deps = [
"//checker:go_default_library",
- "//checker/decls:go_default_library",
"//common/containers:go_default_library",
"//common/debug:go_default_library",
+ "//common/decls:go_default_library",
+ "//common/functions:go_default_library",
"//common/operators:go_default_library",
+ "//common/stdlib:go_default_library",
"//common/types:go_default_library",
- "//interpreter/functions:go_default_library",
"//parser:go_default_library",
"//test:go_default_library",
"//test/proto2pb:go_default_library",
"//test/proto3pb:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//types/known/anypb:go_default_library",
],
diff --git a/vendor/github.com/google/cel-go/interpreter/activation.go b/vendor/github.com/google/cel-go/interpreter/activation.go
index f82e4e9..1577f35 100644
--- a/vendor/github.com/google/cel-go/interpreter/activation.go
+++ b/vendor/github.com/google/cel-go/interpreter/activation.go
@@ -17,7 +17,6 @@ package interpreter
import (
"errors"
"fmt"
- "sync"
"github.com/google/cel-go/common/types/ref"
)
@@ -58,7 +57,7 @@ func (emptyActivation) Parent() Activation { return nil }
// The output of the lazy binding will overwrite the variable reference in the internal map.
//
// Values which are not represented as ref.Val types on input may be adapted to a ref.Val using
-// the ref.TypeAdapter configured in the environment.
+// the types.Adapter configured in the environment.
func NewActivation(bindings any) (Activation, error) {
if bindings == nil {
return nil, errors.New("bindings must be non-nil")
@@ -167,35 +166,3 @@ type partActivation struct {
func (a *partActivation) UnknownAttributePatterns() []*AttributePattern {
return a.unknowns
}
-
-// varActivation represents a single mutable variable binding.
-//
-// This activation type should only be used within folds as the fold loop controls the object
-// life-cycle.
-type varActivation struct {
- parent Activation
- name string
- val ref.Val
-}
-
-// Parent implements the Activation interface method.
-func (v *varActivation) Parent() Activation {
- return v.parent
-}
-
-// ResolveName implements the Activation interface method.
-func (v *varActivation) ResolveName(name string) (any, bool) {
- if name == v.name {
- return v.val, true
- }
- return v.parent.ResolveName(name)
-}
-
-var (
- // pool of var activations to reduce allocations during folds.
- varActivationPool = &sync.Pool{
- New: func() any {
- return &varActivation{}
- },
- }
-)
diff --git a/vendor/github.com/google/cel-go/interpreter/attribute_patterns.go b/vendor/github.com/google/cel-go/interpreter/attribute_patterns.go
index afb7c8d..8f19bde 100644
--- a/vendor/github.com/google/cel-go/interpreter/attribute_patterns.go
+++ b/vendor/github.com/google/cel-go/interpreter/attribute_patterns.go
@@ -15,6 +15,8 @@
package interpreter
import (
+ "fmt"
+
"github.com/google/cel-go/common/containers"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
@@ -176,10 +178,8 @@ func numericValueEquals(value any, celValue ref.Val) bool {
// NewPartialAttributeFactory returns an AttributeFactory implementation capable of performing
// AttributePattern matches with PartialActivation inputs.
-func NewPartialAttributeFactory(container *containers.Container,
- adapter ref.TypeAdapter,
- provider ref.TypeProvider) AttributeFactory {
- fac := NewAttributeFactory(container, adapter, provider)
+func NewPartialAttributeFactory(container *containers.Container, adapter types.Adapter, provider types.Provider, opts ...AttrFactoryOption) AttributeFactory {
+ fac := NewAttributeFactory(container, adapter, provider, opts...)
return &partialAttributeFactory{
AttributeFactory: fac,
container: container,
@@ -191,8 +191,8 @@ func NewPartialAttributeFactory(container *containers.Container,
type partialAttributeFactory struct {
AttributeFactory
container *containers.Container
- adapter ref.TypeAdapter
- provider ref.TypeProvider
+ adapter types.Adapter
+ provider types.Provider
}
// AbsoluteAttribute implementation of the AttributeFactory interface which wraps the
@@ -241,12 +241,15 @@ func (fac *partialAttributeFactory) matchesUnknownPatterns(
vars PartialActivation,
attrID int64,
variableNames []string,
- qualifiers []Qualifier) (types.Unknown, error) {
+ qualifiers []Qualifier) (*types.Unknown, error) {
patterns := vars.UnknownAttributePatterns()
candidateIndices := map[int]struct{}{}
for _, variable := range variableNames {
for i, pat := range patterns {
if pat.VariableMatches(variable) {
+ if len(qualifiers) == 0 {
+ return types.NewUnknown(attrID, types.NewAttributeTrail(variable)), nil
+ }
candidateIndices[i] = struct{}{}
}
}
@@ -255,10 +258,6 @@ func (fac *partialAttributeFactory) matchesUnknownPatterns(
if len(candidateIndices) == 0 {
return nil, nil
}
- // Determine whether to return early if there are no qualifiers.
- if len(qualifiers) == 0 {
- return types.Unknown{attrID}, nil
- }
// Resolve the attribute qualifiers into a static set. This prevents more dynamic
// Attribute resolutions than necessary when there are multiple unknown patterns
// that traverse the same Attribute-based qualifier field.
@@ -300,7 +299,28 @@ func (fac *partialAttributeFactory) matchesUnknownPatterns(
}
}
if isUnk {
- return types.Unknown{matchExprID}, nil
+ attr := types.NewAttributeTrail(pat.variable)
+ for i := 0; i < len(qualPats) && i < len(newQuals); i++ {
+ if qual, ok := newQuals[i].(ConstantQualifier); ok {
+ switch v := qual.Value().Value().(type) {
+ case bool:
+ types.QualifyAttribute[bool](attr, v)
+ case float64:
+ types.QualifyAttribute[int64](attr, int64(v))
+ case int64:
+ types.QualifyAttribute[int64](attr, v)
+ case string:
+ types.QualifyAttribute[string](attr, v)
+ case uint64:
+ types.QualifyAttribute[uint64](attr, v)
+ default:
+ types.QualifyAttribute[string](attr, fmt.Sprintf("%v", v))
+ }
+ } else {
+ types.QualifyAttribute[string](attr, "*")
+ }
+ }
+ return types.NewUnknown(matchExprID, attr), nil
}
}
return nil, nil
diff --git a/vendor/github.com/google/cel-go/interpreter/attributes.go b/vendor/github.com/google/cel-go/interpreter/attributes.go
index d2205d9..b1b3aac 100644
--- a/vendor/github.com/google/cel-go/interpreter/attributes.go
+++ b/vendor/github.com/google/cel-go/interpreter/attributes.go
@@ -22,8 +22,6 @@ import (
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
// AttributeFactory provides methods creating Attribute and Qualifier values.
@@ -61,7 +59,7 @@ type AttributeFactory interface {
// The qualifier may consider the object type being qualified, if present. If absent, the
// qualification should be considered dynamic and the qualification should still work, though
// it may be sub-optimal.
- NewQualifier(objType *exprpb.Type, qualID int64, val any, opt bool) (Qualifier, error)
+ NewQualifier(objType *types.Type, qualID int64, val any, opt bool) (Qualifier, error)
}
// Qualifier marker interface for designating different qualifier values and where they appear
@@ -128,21 +126,39 @@ type NamespacedAttribute interface {
Qualifiers() []Qualifier
}
+// AttrFactoryOption specifies a functional option for configuring an attribute factory.
+type AttrFactoryOption func(*attrFactory) *attrFactory
+
+// EnableErrorOnBadPresenceTest error generation when a presence test or optional field selection
+// is performed on a primitive type.
+func EnableErrorOnBadPresenceTest(value bool) AttrFactoryOption {
+ return func(fac *attrFactory) *attrFactory {
+ fac.errorOnBadPresenceTest = value
+ return fac
+ }
+}
+
// NewAttributeFactory returns a default AttributeFactory which is produces Attribute values
// capable of resolving types by simple names and qualify the values using the supported qualifier
// types: bool, int, string, and uint.
-func NewAttributeFactory(cont *containers.Container, a ref.TypeAdapter, p ref.TypeProvider) AttributeFactory {
- return &attrFactory{
+func NewAttributeFactory(cont *containers.Container, a types.Adapter, p types.Provider, opts ...AttrFactoryOption) AttributeFactory {
+ fac := &attrFactory{
container: cont,
adapter: a,
provider: p,
}
+ for _, o := range opts {
+ fac = o(fac)
+ }
+ return fac
}
type attrFactory struct {
container *containers.Container
- adapter ref.TypeAdapter
- provider ref.TypeProvider
+ adapter types.Adapter
+ provider types.Provider
+
+ errorOnBadPresenceTest bool
}
// AbsoluteAttribute refers to a variable value and an optional qualifier path.
@@ -151,12 +167,13 @@ type attrFactory struct {
// resolution rules.
func (r *attrFactory) AbsoluteAttribute(id int64, names ...string) NamespacedAttribute {
return &absoluteAttribute{
- id: id,
- namespaceNames: names,
- qualifiers: []Qualifier{},
- adapter: r.adapter,
- provider: r.provider,
- fac: r,
+ id: id,
+ namespaceNames: names,
+ qualifiers: []Qualifier{},
+ adapter: r.adapter,
+ provider: r.provider,
+ fac: r,
+ errorOnBadPresenceTest: r.errorOnBadPresenceTest,
}
}
@@ -190,22 +207,23 @@ func (r *attrFactory) MaybeAttribute(id int64, name string) Attribute {
// RelativeAttribute refers to an expression and an optional qualifier path.
func (r *attrFactory) RelativeAttribute(id int64, operand Interpretable) Attribute {
return &relativeAttribute{
- id: id,
- operand: operand,
- qualifiers: []Qualifier{},
- adapter: r.adapter,
- fac: r,
+ id: id,
+ operand: operand,
+ qualifiers: []Qualifier{},
+ adapter: r.adapter,
+ fac: r,
+ errorOnBadPresenceTest: r.errorOnBadPresenceTest,
}
}
// NewQualifier is an implementation of the AttributeFactory interface.
-func (r *attrFactory) NewQualifier(objType *exprpb.Type, qualID int64, val any, opt bool) (Qualifier, error) {
+func (r *attrFactory) NewQualifier(objType *types.Type, qualID int64, val any, opt bool) (Qualifier, error) {
// Before creating a new qualifier check to see if this is a protobuf message field access.
// If so, use the precomputed GetFrom qualification method rather than the standard
// stringQualifier.
str, isStr := val.(string)
- if isStr && objType != nil && objType.GetMessageType() != "" {
- ft, found := r.provider.FindFieldType(objType.GetMessageType(), str)
+ if isStr && objType != nil && objType.Kind() == types.StructKind {
+ ft, found := r.provider.FindStructFieldType(objType.TypeName(), str)
if found && ft.IsSet != nil && ft.GetFrom != nil {
return &fieldQualifier{
id: qualID,
@@ -216,7 +234,7 @@ func (r *attrFactory) NewQualifier(objType *exprpb.Type, qualID int64, val any,
}, nil
}
}
- return newQualifier(r.adapter, qualID, val, opt)
+ return newQualifier(r.adapter, qualID, val, opt, r.errorOnBadPresenceTest)
}
type absoluteAttribute struct {
@@ -225,9 +243,11 @@ type absoluteAttribute struct {
// (package) of the expression.
namespaceNames []string
qualifiers []Qualifier
- adapter ref.TypeAdapter
- provider ref.TypeProvider
+ adapter types.Adapter
+ provider types.Provider
fac AttributeFactory
+
+ errorOnBadPresenceTest bool
}
// ID implements the Attribute interface method.
@@ -289,12 +309,19 @@ func (a *absoluteAttribute) Resolve(vars Activation) (any, error) {
// determine whether the type is unknown before returning.
obj, found := vars.ResolveName(nm)
if found {
+ if celErr, ok := obj.(*types.Err); ok {
+ return nil, celErr.Unwrap()
+ }
obj, isOpt, err := applyQualifiers(vars, obj, a.qualifiers)
if err != nil {
return nil, err
}
if isOpt {
- return types.OptionalOf(a.adapter.NativeToValue(obj)), nil
+ val := a.adapter.NativeToValue(obj)
+ if types.IsUnknown(val) {
+ return val, nil
+ }
+ return types.OptionalOf(val), nil
}
return obj, nil
}
@@ -321,7 +348,7 @@ type conditionalAttribute struct {
expr Interpretable
truthy Attribute
falsy Attribute
- adapter ref.TypeAdapter
+ adapter types.Adapter
fac AttributeFactory
}
@@ -389,8 +416,8 @@ func (a *conditionalAttribute) String() string {
type maybeAttribute struct {
id int64
attrs []NamespacedAttribute
- adapter ref.TypeAdapter
- provider ref.TypeProvider
+ adapter types.Adapter
+ provider types.Provider
fac AttributeFactory
}
@@ -507,8 +534,10 @@ type relativeAttribute struct {
id int64
operand Interpretable
qualifiers []Qualifier
- adapter ref.TypeAdapter
+ adapter types.Adapter
fac AttributeFactory
+
+ errorOnBadPresenceTest bool
}
// ID is an implementation of the Attribute interface method.
@@ -558,7 +587,11 @@ func (a *relativeAttribute) Resolve(vars Activation) (any, error) {
return nil, err
}
if isOpt {
- return types.OptionalOf(a.adapter.NativeToValue(obj)), nil
+ val := a.adapter.NativeToValue(obj)
+ if types.IsUnknown(val) {
+ return val, nil
+ }
+ return types.OptionalOf(val), nil
}
return obj, nil
}
@@ -568,7 +601,7 @@ func (a *relativeAttribute) String() string {
return fmt.Sprintf("id: %v, operand: %v", a.id, a.operand)
}
-func newQualifier(adapter ref.TypeAdapter, id int64, v any, opt bool) (Qualifier, error) {
+func newQualifier(adapter types.Adapter, id int64, v any, opt, errorOnBadPresenceTest bool) (Qualifier, error) {
var qual Qualifier
switch val := v.(type) {
case Attribute:
@@ -583,73 +616,140 @@ func newQualifier(adapter ref.TypeAdapter, id int64, v any, opt bool) (Qualifier
}, nil
case string:
qual = &stringQualifier{
- id: id,
- value: val,
- celValue: types.String(val),
- adapter: adapter,
- optional: opt,
+ id: id,
+ value: val,
+ celValue: types.String(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case int:
qual = &intQualifier{
- id: id, value: int64(val), celValue: types.Int(val), adapter: adapter, optional: opt,
+ id: id,
+ value: int64(val),
+ celValue: types.Int(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case int32:
qual = &intQualifier{
- id: id, value: int64(val), celValue: types.Int(val), adapter: adapter, optional: opt,
+ id: id,
+ value: int64(val),
+ celValue: types.Int(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case int64:
qual = &intQualifier{
- id: id, value: val, celValue: types.Int(val), adapter: adapter, optional: opt,
+ id: id,
+ value: val,
+ celValue: types.Int(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case uint:
qual = &uintQualifier{
- id: id, value: uint64(val), celValue: types.Uint(val), adapter: adapter, optional: opt,
+ id: id,
+ value: uint64(val),
+ celValue: types.Uint(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case uint32:
qual = &uintQualifier{
- id: id, value: uint64(val), celValue: types.Uint(val), adapter: adapter, optional: opt,
+ id: id,
+ value: uint64(val),
+ celValue: types.Uint(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case uint64:
qual = &uintQualifier{
- id: id, value: val, celValue: types.Uint(val), adapter: adapter, optional: opt,
+ id: id,
+ value: val,
+ celValue: types.Uint(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case bool:
qual = &boolQualifier{
- id: id, value: val, celValue: types.Bool(val), adapter: adapter, optional: opt,
+ id: id,
+ value: val,
+ celValue: types.Bool(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case float32:
qual = &doubleQualifier{
- id: id,
- value: float64(val),
- celValue: types.Double(val),
- adapter: adapter,
- optional: opt,
+ id: id,
+ value: float64(val),
+ celValue: types.Double(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case float64:
qual = &doubleQualifier{
- id: id, value: val, celValue: types.Double(val), adapter: adapter, optional: opt,
+ id: id,
+ value: val,
+ celValue: types.Double(val),
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case types.String:
qual = &stringQualifier{
- id: id, value: string(val), celValue: val, adapter: adapter, optional: opt,
+ id: id,
+ value: string(val),
+ celValue: val,
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case types.Int:
qual = &intQualifier{
- id: id, value: int64(val), celValue: val, adapter: adapter, optional: opt,
+ id: id,
+ value: int64(val),
+ celValue: val,
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case types.Uint:
qual = &uintQualifier{
- id: id, value: uint64(val), celValue: val, adapter: adapter, optional: opt,
+ id: id,
+ value: uint64(val),
+ celValue: val,
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case types.Bool:
qual = &boolQualifier{
- id: id, value: bool(val), celValue: val, adapter: adapter, optional: opt,
+ id: id,
+ value: bool(val),
+ celValue: val,
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
case types.Double:
qual = &doubleQualifier{
- id: id, value: float64(val), celValue: val, adapter: adapter, optional: opt,
+ id: id,
+ value: float64(val),
+ celValue: val,
+ adapter: adapter,
+ optional: opt,
+ errorOnBadPresenceTest: errorOnBadPresenceTest,
}
- case types.Unknown:
+ case *types.Unknown:
qual = &unknownQualifier{id: id, value: val}
default:
if q, ok := v.(Qualifier); ok {
@@ -678,11 +778,12 @@ func (q *attrQualifier) IsOptional() bool {
}
type stringQualifier struct {
- id int64
- value string
- celValue ref.Val
- adapter ref.TypeAdapter
- optional bool
+ id int64
+ value string
+ celValue ref.Val
+ adapter types.Adapter
+ optional bool
+ errorOnBadPresenceTest bool
}
// ID is an implementation of the Qualifier interface method.
@@ -765,7 +866,7 @@ func (q *stringQualifier) qualifyInternal(vars Activation, obj any, presenceTest
return obj, true, nil
}
default:
- return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly)
+ return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly, q.errorOnBadPresenceTest)
}
if presenceTest {
return nil, false, nil
@@ -779,11 +880,12 @@ func (q *stringQualifier) Value() ref.Val {
}
type intQualifier struct {
- id int64
- value int64
- celValue ref.Val
- adapter ref.TypeAdapter
- optional bool
+ id int64
+ value int64
+ celValue ref.Val
+ adapter types.Adapter
+ optional bool
+ errorOnBadPresenceTest bool
}
// ID is an implementation of the Qualifier interface method.
@@ -889,7 +991,7 @@ func (q *intQualifier) qualifyInternal(vars Activation, obj any, presenceTest, p
return o[i], true, nil
}
default:
- return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly)
+ return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly, q.errorOnBadPresenceTest)
}
if presenceTest {
return nil, false, nil
@@ -906,11 +1008,12 @@ func (q *intQualifier) Value() ref.Val {
}
type uintQualifier struct {
- id int64
- value uint64
- celValue ref.Val
- adapter ref.TypeAdapter
- optional bool
+ id int64
+ value uint64
+ celValue ref.Val
+ adapter types.Adapter
+ optional bool
+ errorOnBadPresenceTest bool
}
// ID is an implementation of the Qualifier interface method.
@@ -957,7 +1060,7 @@ func (q *uintQualifier) qualifyInternal(vars Activation, obj any, presenceTest,
return obj, true, nil
}
default:
- return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly)
+ return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly, q.errorOnBadPresenceTest)
}
if presenceTest {
return nil, false, nil
@@ -971,11 +1074,12 @@ func (q *uintQualifier) Value() ref.Val {
}
type boolQualifier struct {
- id int64
- value bool
- celValue ref.Val
- adapter ref.TypeAdapter
- optional bool
+ id int64
+ value bool
+ celValue ref.Val
+ adapter types.Adapter
+ optional bool
+ errorOnBadPresenceTest bool
}
// ID is an implementation of the Qualifier interface method.
@@ -1008,7 +1112,7 @@ func (q *boolQualifier) qualifyInternal(vars Activation, obj any, presenceTest,
return obj, true, nil
}
default:
- return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly)
+ return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly, q.errorOnBadPresenceTest)
}
if presenceTest {
return nil, false, nil
@@ -1027,8 +1131,8 @@ func (q *boolQualifier) Value() ref.Val {
type fieldQualifier struct {
id int64
Name string
- FieldType *ref.FieldType
- adapter ref.TypeAdapter
+ FieldType *types.FieldType
+ adapter types.Adapter
optional bool
}
@@ -1083,11 +1187,12 @@ func (q *fieldQualifier) Value() ref.Val {
// type may not be known ahead of time and may not conform to the standard types supported as valid
// protobuf map key types.
type doubleQualifier struct {
- id int64
- value float64
- celValue ref.Val
- adapter ref.TypeAdapter
- optional bool
+ id int64
+ value float64
+ celValue ref.Val
+ adapter types.Adapter
+ optional bool
+ errorOnBadPresenceTest bool
}
// ID is an implementation of the Qualifier interface method.
@@ -1111,7 +1216,7 @@ func (q *doubleQualifier) QualifyIfPresent(vars Activation, obj any, presenceOnl
}
func (q *doubleQualifier) qualifyInternal(vars Activation, obj any, presenceTest, presenceOnly bool) (any, bool, error) {
- return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly)
+ return refQualify(q.adapter, obj, q.celValue, presenceTest, presenceOnly, q.errorOnBadPresenceTest)
}
// Value implements the ConstantQualifier interface
@@ -1123,7 +1228,7 @@ func (q *doubleQualifier) Value() ref.Val {
// for any value subject to qualification. This is consistent with CEL's unknown handling elsewhere.
type unknownQualifier struct {
id int64
- value types.Unknown
+ value *types.Unknown
}
// ID is an implementation of the Qualifier interface method.
@@ -1171,6 +1276,9 @@ func applyQualifiers(vars Activation, obj any, qualifiers []Qualifier) (any, boo
return nil, false, err
}
if !present {
+ // We return optional none here with a presence of 'false' as the layers
+ // above will attempt to call types.OptionalOf() on a present value if any
+ // of the qualifiers is optional.
return types.OptionalNone, false, nil
}
} else {
@@ -1214,15 +1322,17 @@ func attrQualifyIfPresent(fac AttributeFactory, vars Activation, obj any, qualAt
// refQualify attempts to convert the value to a CEL value and then uses reflection methods to try and
// apply the qualifier with the option to presence test field accesses before retrieving field values.
-func refQualify(adapter ref.TypeAdapter, obj any, idx ref.Val, presenceTest, presenceOnly bool) (ref.Val, bool, error) {
+func refQualify(adapter types.Adapter, obj any, idx ref.Val, presenceTest, presenceOnly, errorOnBadPresenceTest bool) (ref.Val, bool, error) {
celVal := adapter.NativeToValue(obj)
switch v := celVal.(type) {
- case types.Unknown:
+ case *types.Unknown:
return v, true, nil
case *types.Err:
return nil, false, v
case traits.Mapper:
val, found := v.Find(idx)
+ // If the index is of the wrong type for the map, then it is possible
+ // for the Find call to produce an error.
if types.IsError(val) {
return nil, false, val.(*types.Err)
}
@@ -1234,6 +1344,8 @@ func refQualify(adapter ref.TypeAdapter, obj any, idx ref.Val, presenceTest, pre
}
return nil, false, missingKey(idx)
case traits.Lister:
+ // If the index argument is not a valid numeric type, then it is possible
+ // for the index operation to produce an error.
i, err := types.IndexOrError(idx)
if err != nil {
return nil, false, err
@@ -1254,6 +1366,8 @@ func refQualify(adapter ref.TypeAdapter, obj any, idx ref.Val, presenceTest, pre
if types.IsError(presence) {
return nil, false, presence.(*types.Err)
}
+ // If not found or presence only test, then return.
+ // Otherwise, if found, obtain the value later on.
if presenceOnly || presence == types.False {
return nil, presence == types.True, nil
}
@@ -1265,7 +1379,7 @@ func refQualify(adapter ref.TypeAdapter, obj any, idx ref.Val, presenceTest, pre
}
return val, true, nil
default:
- if presenceTest {
+ if presenceTest && !errorOnBadPresenceTest {
return nil, false, nil
}
return nil, false, missingKey(idx)
@@ -1320,17 +1434,3 @@ func (e *resolutionError) Error() string {
func (e *resolutionError) Is(err error) bool {
return err.Error() == e.Error()
}
-
-func findMin(x, y int64) int64 {
- if x < y {
- return x
- }
- return y
-}
-
-func findMax(x, y int64) int64 {
- if x > y {
- return x
- }
- return y
-}
diff --git a/vendor/github.com/google/cel-go/interpreter/decorators.go b/vendor/github.com/google/cel-go/interpreter/decorators.go
index 208487b..502db35 100644
--- a/vendor/github.com/google/cel-go/interpreter/decorators.go
+++ b/vendor/github.com/google/cel-go/interpreter/decorators.go
@@ -75,15 +75,13 @@ func decDisableShortcircuits() InterpretableDecorator {
switch expr := i.(type) {
case *evalOr:
return &evalExhaustiveOr{
- id: expr.id,
- lhs: expr.lhs,
- rhs: expr.rhs,
+ id: expr.id,
+ terms: expr.terms,
}, nil
case *evalAnd:
return &evalExhaustiveAnd{
- id: expr.id,
- lhs: expr.lhs,
- rhs: expr.rhs,
+ id: expr.id,
+ terms: expr.terms,
}, nil
case *evalFold:
expr.exhaustive = true
diff --git a/vendor/github.com/google/cel-go/interpreter/dispatcher.go b/vendor/github.com/google/cel-go/interpreter/dispatcher.go
index febf9d8..8f0bdb7 100644
--- a/vendor/github.com/google/cel-go/interpreter/dispatcher.go
+++ b/vendor/github.com/google/cel-go/interpreter/dispatcher.go
@@ -17,7 +17,7 @@ package interpreter
import (
"fmt"
- "github.com/google/cel-go/interpreter/functions"
+ "github.com/google/cel-go/common/functions"
)
// Dispatcher resolves function calls to their appropriate overload.
diff --git a/vendor/github.com/google/cel-go/interpreter/evalstate.go b/vendor/github.com/google/cel-go/interpreter/evalstate.go
index cc0d3e6..4bdd1fd 100644
--- a/vendor/github.com/google/cel-go/interpreter/evalstate.go
+++ b/vendor/github.com/google/cel-go/interpreter/evalstate.go
@@ -66,7 +66,11 @@ func (s *evalState) Value(exprID int64) (ref.Val, bool) {
// SetValue is an implementation of the EvalState interface method.
func (s *evalState) SetValue(exprID int64, val ref.Val) {
- s.values[exprID] = val
+ if val == nil {
+ delete(s.values, exprID)
+ } else {
+ s.values[exprID] = val
+ }
}
// Reset implements the EvalState interface method.
diff --git a/vendor/github.com/google/cel-go/interpreter/formatting.go b/vendor/github.com/google/cel-go/interpreter/formatting.go
deleted file mode 100644
index 6a98f6f..0000000
--- a/vendor/github.com/google/cel-go/interpreter/formatting.go
+++ /dev/null
@@ -1,383 +0,0 @@
-// Copyright 2023 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package interpreter
-
-import (
- "errors"
- "fmt"
- "strconv"
- "strings"
- "unicode"
-
- "github.com/google/cel-go/common/types"
- "github.com/google/cel-go/common/types/ref"
-)
-
-type typeVerifier func(int64, ...*types.TypeValue) (bool, error)
-
-// InterpolateFormattedString checks the syntax and cardinality of any string.format calls present in the expression and reports
-// any errors at compile time.
-func InterpolateFormattedString(verifier typeVerifier) InterpretableDecorator {
- return func(inter Interpretable) (Interpretable, error) {
- call, ok := inter.(InterpretableCall)
- if !ok {
- return inter, nil
- }
- if call.OverloadID() != "string_format" {
- return inter, nil
- }
- args := call.Args()
- if len(args) != 2 {
- return nil, fmt.Errorf("wrong number of arguments to string.format (expected 2, got %d)", len(args))
- }
- fmtStrInter, ok := args[0].(InterpretableConst)
- if !ok {
- return inter, nil
- }
- var fmtArgsInter InterpretableConstructor
- fmtArgsInter, ok = args[1].(InterpretableConstructor)
- if !ok {
- return inter, nil
- }
- if fmtArgsInter.Type() != types.ListType {
- // don't necessarily return an error since the list may be DynType
- return inter, nil
- }
- formatStr := fmtStrInter.Value().Value().(string)
- initVals := fmtArgsInter.InitVals()
-
- formatCheck := &formatCheck{
- args: initVals,
- verifier: verifier,
- }
- // use a placeholder locale, since locale doesn't affect syntax
- _, err := ParseFormatString(formatStr, formatCheck, formatCheck, "en_US")
- if err != nil {
- return nil, err
- }
- seenArgs := formatCheck.argsRequested
- if len(initVals) > seenArgs {
- return nil, fmt.Errorf("too many arguments supplied to string.format (expected %d, got %d)", seenArgs, len(initVals))
- }
- return inter, nil
- }
-}
-
-type formatCheck struct {
- args []Interpretable
- argsRequested int
- curArgIndex int64
- enableCheckArgTypes bool
- verifier typeVerifier
-}
-
-func (c *formatCheck) String(arg ref.Val, locale string) (string, error) {
- valid, err := verifyString(c.args[c.curArgIndex], c.verifier)
- if err != nil {
- return "", err
- }
- if !valid {
- return "", errors.New("string clause can only be used on strings, bools, bytes, ints, doubles, maps, lists, types, durations, and timestamps")
- }
- return "", nil
-}
-
-func (c *formatCheck) Decimal(arg ref.Val, locale string) (string, error) {
- id := c.args[c.curArgIndex].ID()
- valid, err := c.verifier(id, types.IntType, types.UintType)
- if err != nil {
- return "", err
- }
- if !valid {
- return "", errors.New("integer clause can only be used on integers")
- }
- return "", nil
-}
-
-func (c *formatCheck) Fixed(precision *int) func(ref.Val, string) (string, error) {
- return func(arg ref.Val, locale string) (string, error) {
- id := c.args[c.curArgIndex].ID()
- // we allow StringType since "NaN", "Infinity", and "-Infinity" are also valid values
- valid, err := c.verifier(id, types.DoubleType, types.StringType)
- if err != nil {
- return "", err
- }
- if !valid {
- return "", errors.New("fixed-point clause can only be used on doubles")
- }
- return "", nil
- }
-}
-
-func (c *formatCheck) Scientific(precision *int) func(ref.Val, string) (string, error) {
- return func(arg ref.Val, locale string) (string, error) {
- id := c.args[c.curArgIndex].ID()
- valid, err := c.verifier(id, types.DoubleType, types.StringType)
- if err != nil {
- return "", err
- }
- if !valid {
- return "", errors.New("scientific clause can only be used on doubles")
- }
- return "", nil
- }
-}
-
-func (c *formatCheck) Binary(arg ref.Val, locale string) (string, error) {
- id := c.args[c.curArgIndex].ID()
- valid, err := c.verifier(id, types.IntType, types.UintType, types.BoolType)
- if err != nil {
- return "", err
- }
- if !valid {
- return "", errors.New("only integers and bools can be formatted as binary")
- }
- return "", nil
-}
-
-func (c *formatCheck) Hex(useUpper bool) func(ref.Val, string) (string, error) {
- return func(arg ref.Val, locale string) (string, error) {
- id := c.args[c.curArgIndex].ID()
- valid, err := c.verifier(id, types.IntType, types.UintType, types.StringType, types.BytesType)
- if err != nil {
- return "", err
- }
- if !valid {
- return "", errors.New("only integers, byte buffers, and strings can be formatted as hex")
- }
- return "", nil
- }
-}
-
-func (c *formatCheck) Octal(arg ref.Val, locale string) (string, error) {
- id := c.args[c.curArgIndex].ID()
- valid, err := c.verifier(id, types.IntType, types.UintType)
- if err != nil {
- return "", err
- }
- if !valid {
- return "", errors.New("octal clause can only be used on integers")
- }
- return "", nil
-}
-
-func (c *formatCheck) Arg(index int64) (ref.Val, error) {
- c.argsRequested++
- c.curArgIndex = index
- // return a dummy value - this is immediately passed to back to us
- // through one of the FormatCallback functions, so anything will do
- return types.Int(0), nil
-}
-
-func (c *formatCheck) ArgSize() int64 {
- return int64(len(c.args))
-}
-
-func verifyString(sub Interpretable, verifier typeVerifier) (bool, error) {
- subVerified, err := verifier(sub.ID(),
- types.ListType, types.MapType, types.IntType, types.UintType, types.DoubleType,
- types.BoolType, types.StringType, types.TimestampType, types.BytesType, types.DurationType, types.TypeType, types.NullType)
- if err != nil {
- return false, err
- }
- if !subVerified {
- return false, nil
- }
- con, ok := sub.(InterpretableConstructor)
- if ok {
- members := con.InitVals()
- for _, m := range members {
- // recursively verify if we're dealing with a list/map
- verified, err := verifyString(m, verifier)
- if err != nil {
- return false, err
- }
- if !verified {
- return false, nil
- }
- }
- }
- return true, nil
-
-}
-
-// FormatStringInterpolator is an interface that allows user-defined behavior
-// for formatting clause implementations, as well as argument retrieval.
-// Each function is expected to support the appropriate types as laid out in
-// the string.format documentation, and to return an error if given an inappropriate type.
-type FormatStringInterpolator interface {
- // String takes a ref.Val and a string representing the current locale identifier
- // and returns the Val formatted as a string, or an error if one occurred.
- String(ref.Val, string) (string, error)
-
- // Decimal takes a ref.Val and a string representing the current locale identifier
- // and returns the Val formatted as a decimal integer, or an error if one occurred.
- Decimal(ref.Val, string) (string, error)
-
- // Fixed takes an int pointer representing precision (or nil if none was given) and
- // returns a function operating in a similar manner to String and Decimal, taking a
- // ref.Val and locale and returning the appropriate string. A closure is returned
- // so precision can be set without needing an additional function call/configuration.
- Fixed(*int) func(ref.Val, string) (string, error)
-
- // Scientific functions identically to Fixed, except the string returned from the closure
- // is expected to be in scientific notation.
- Scientific(*int) func(ref.Val, string) (string, error)
-
- // Binary takes a ref.Val and a string representing the current locale identifier
- // and returns the Val formatted as a binary integer, or an error if one occurred.
- Binary(ref.Val, string) (string, error)
-
- // Hex takes a boolean that, if true, indicates the hex string output by the returned
- // closure should use uppercase letters for A-F.
- Hex(bool) func(ref.Val, string) (string, error)
-
- // Octal takes a ref.Val and a string representing the current locale identifier and
- // returns the Val formatted in octal, or an error if one occurred.
- Octal(ref.Val, string) (string, error)
-}
-
-// FormatList is an interface that allows user-defined list-like datatypes to be used
-// for formatting clause implementations.
-type FormatList interface {
- // Arg returns the ref.Val at the given index, or an error if one occurred.
- Arg(int64) (ref.Val, error)
- // ArgSize returns the length of the argument list.
- ArgSize() int64
-}
-
-type clauseImpl func(ref.Val, string) (string, error)
-
-// ParseFormatString formats a string according to the string.format syntax, taking the clause implementations
-// from the provided FormatCallback and the args from the given FormatList.
-func ParseFormatString(formatStr string, callback FormatStringInterpolator, list FormatList, locale string) (string, error) {
- i := 0
- argIndex := 0
- var builtStr strings.Builder
- for i < len(formatStr) {
- if formatStr[i] == '%' {
- if i+1 < len(formatStr) && formatStr[i+1] == '%' {
- err := builtStr.WriteByte('%')
- if err != nil {
- return "", fmt.Errorf("error writing format string: %w", err)
- }
- i += 2
- continue
- } else {
- argAny, err := list.Arg(int64(argIndex))
- if err != nil {
- return "", err
- }
- if i+1 >= len(formatStr) {
- return "", errors.New("unexpected end of string")
- }
- if int64(argIndex) >= list.ArgSize() {
- return "", fmt.Errorf("index %d out of range", argIndex)
- }
- numRead, val, refErr := parseAndFormatClause(formatStr[i:], argAny, callback, list, locale)
- if refErr != nil {
- return "", refErr
- }
- _, err = builtStr.WriteString(val)
- if err != nil {
- return "", fmt.Errorf("error writing format string: %w", err)
- }
- i += numRead
- argIndex++
- }
- } else {
- err := builtStr.WriteByte(formatStr[i])
- if err != nil {
- return "", fmt.Errorf("error writing format string: %w", err)
- }
- i++
- }
- }
- return builtStr.String(), nil
-}
-
-// parseAndFormatClause parses the format clause at the start of the given string with val, and returns
-// how many characters were consumed and the substituted string form of val, or an error if one occurred.
-func parseAndFormatClause(formatStr string, val ref.Val, callback FormatStringInterpolator, list FormatList, locale string) (int, string, error) {
- i := 1
- read, formatter, err := parseFormattingClause(formatStr[i:], callback)
- i += read
- if err != nil {
- return -1, "", fmt.Errorf("could not parse formatting clause: %s", err)
- }
-
- valStr, err := formatter(val, locale)
- if err != nil {
- return -1, "", fmt.Errorf("error during formatting: %s", err)
- }
- return i, valStr, nil
-}
-
-func parseFormattingClause(formatStr string, callback FormatStringInterpolator) (int, clauseImpl, error) {
- i := 0
- read, precision, err := parsePrecision(formatStr[i:])
- i += read
- if err != nil {
- return -1, nil, fmt.Errorf("error while parsing precision: %w", err)
- }
- r := rune(formatStr[i])
- i++
- switch r {
- case 's':
- return i, callback.String, nil
- case 'd':
- return i, callback.Decimal, nil
- case 'f':
- return i, callback.Fixed(precision), nil
- case 'e':
- return i, callback.Scientific(precision), nil
- case 'b':
- return i, callback.Binary, nil
- case 'x', 'X':
- return i, callback.Hex(unicode.IsUpper(r)), nil
- case 'o':
- return i, callback.Octal, nil
- default:
- return -1, nil, fmt.Errorf("unrecognized formatting clause \"%c\"", r)
- }
-}
-
-func parsePrecision(formatStr string) (int, *int, error) {
- i := 0
- if formatStr[i] != '.' {
- return i, nil, nil
- }
- i++
- var buffer strings.Builder
- for {
- if i >= len(formatStr) {
- return -1, nil, errors.New("could not find end of precision specifier")
- }
- if !isASCIIDigit(rune(formatStr[i])) {
- break
- }
- buffer.WriteByte(formatStr[i])
- i++
- }
- precision, err := strconv.Atoi(buffer.String())
- if err != nil {
- return -1, nil, fmt.Errorf("error while converting precision to integer: %w", err)
- }
- return i, &precision, nil
-}
-
-func isASCIIDigit(r rune) bool {
- return r <= unicode.MaxASCII && unicode.IsDigit(r)
-}
diff --git a/vendor/github.com/google/cel-go/interpreter/functions/BUILD.bazel b/vendor/github.com/google/cel-go/interpreter/functions/BUILD.bazel
index 846d11b..4a80c3e 100644
--- a/vendor/github.com/google/cel-go/interpreter/functions/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/interpreter/functions/BUILD.bazel
@@ -7,16 +7,11 @@ package(
go_library(
name = "go_default_library",
- srcs = [
+ srcs = [
"functions.go",
- "standard.go",
],
importpath = "github.com/google/cel-go/interpreter/functions",
deps = [
- "//common/operators:go_default_library",
- "//common/overloads:go_default_library",
- "//common/types:go_default_library",
- "//common/types/ref:go_default_library",
- "//common/types/traits:go_default_library",
+ "//common/functions:go_default_library",
],
)
diff --git a/vendor/github.com/google/cel-go/interpreter/functions/functions.go b/vendor/github.com/google/cel-go/interpreter/functions/functions.go
index 9816017..21ffb69 100644
--- a/vendor/github.com/google/cel-go/interpreter/functions/functions.go
+++ b/vendor/github.com/google/cel-go/interpreter/functions/functions.go
@@ -16,7 +16,7 @@
// interpreter and as declared within the checker#StandardDeclarations.
package functions
-import "github.com/google/cel-go/common/types/ref"
+import fn "github.com/google/cel-go/common/functions"
// Overload defines a named overload of a function, indicating an operand trait
// which must be present on the first argument to the overload as well as one
@@ -26,37 +26,14 @@ import "github.com/google/cel-go/common/types/ref"
// and the specializations simplify the call contract for implementers of
// types with operator overloads. Any added complexity is assumed to be handled
// by the generic FunctionOp.
-type Overload struct {
- // Operator name as written in an expression or defined within
- // operators.go.
- Operator string
-
- // Operand trait used to dispatch the call. The zero-value indicates a
- // global function overload or that one of the Unary / Binary / Function
- // definitions should be used to execute the call.
- OperandTrait int
-
- // Unary defines the overload with a UnaryOp implementation. May be nil.
- Unary UnaryOp
-
- // Binary defines the overload with a BinaryOp implementation. May be nil.
- Binary BinaryOp
-
- // Function defines the overload with a FunctionOp implementation. May be
- // nil.
- Function FunctionOp
-
- // NonStrict specifies whether the Overload will tolerate arguments that
- // are types.Err or types.Unknown.
- NonStrict bool
-}
+type Overload = fn.Overload
// UnaryOp is a function that takes a single value and produces an output.
-type UnaryOp func(value ref.Val) ref.Val
+type UnaryOp = fn.UnaryOp
// BinaryOp is a function that takes two values and produces an output.
-type BinaryOp func(lhs ref.Val, rhs ref.Val) ref.Val
+type BinaryOp = fn.BinaryOp
// FunctionOp is a function with accepts zero or more arguments and produces
// a value or error as a result.
-type FunctionOp func(values ...ref.Val) ref.Val
+type FunctionOp = fn.FunctionOp
diff --git a/vendor/github.com/google/cel-go/interpreter/functions/standard.go b/vendor/github.com/google/cel-go/interpreter/functions/standard.go
deleted file mode 100644
index 73e9361..0000000
--- a/vendor/github.com/google/cel-go/interpreter/functions/standard.go
+++ /dev/null
@@ -1,270 +0,0 @@
-// Copyright 2018 Google LLC
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package functions
-
-import (
- "github.com/google/cel-go/common/operators"
- "github.com/google/cel-go/common/overloads"
- "github.com/google/cel-go/common/types"
- "github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/common/types/traits"
-)
-
-// StandardOverloads returns the definitions of the built-in overloads.
-func StandardOverloads() []*Overload {
- return []*Overload{
- // Logical not (!a)
- {
- Operator: operators.LogicalNot,
- OperandTrait: traits.NegatorType,
- Unary: func(value ref.Val) ref.Val {
- if !types.IsBool(value) {
- return types.ValOrErr(value, "no such overload")
- }
- return value.(traits.Negater).Negate()
- }},
- // Not strictly false: IsBool(a) ? a : true
- {
- Operator: operators.NotStrictlyFalse,
- Unary: notStrictlyFalse},
- // Deprecated: not strictly false, may be overridden in the environment.
- {
- Operator: operators.OldNotStrictlyFalse,
- Unary: notStrictlyFalse},
-
- // Less than operator
- {Operator: operators.Less,
- OperandTrait: traits.ComparerType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- cmp := lhs.(traits.Comparer).Compare(rhs)
- if cmp == types.IntNegOne {
- return types.True
- }
- if cmp == types.IntOne || cmp == types.IntZero {
- return types.False
- }
- return cmp
- }},
-
- // Less than or equal operator
- {Operator: operators.LessEquals,
- OperandTrait: traits.ComparerType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- cmp := lhs.(traits.Comparer).Compare(rhs)
- if cmp == types.IntNegOne || cmp == types.IntZero {
- return types.True
- }
- if cmp == types.IntOne {
- return types.False
- }
- return cmp
- }},
-
- // Greater than operator
- {Operator: operators.Greater,
- OperandTrait: traits.ComparerType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- cmp := lhs.(traits.Comparer).Compare(rhs)
- if cmp == types.IntOne {
- return types.True
- }
- if cmp == types.IntNegOne || cmp == types.IntZero {
- return types.False
- }
- return cmp
- }},
-
- // Greater than equal operators
- {Operator: operators.GreaterEquals,
- OperandTrait: traits.ComparerType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- cmp := lhs.(traits.Comparer).Compare(rhs)
- if cmp == types.IntOne || cmp == types.IntZero {
- return types.True
- }
- if cmp == types.IntNegOne {
- return types.False
- }
- return cmp
- }},
-
- // Add operator
- {Operator: operators.Add,
- OperandTrait: traits.AdderType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- return lhs.(traits.Adder).Add(rhs)
- }},
-
- // Subtract operators
- {Operator: operators.Subtract,
- OperandTrait: traits.SubtractorType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- return lhs.(traits.Subtractor).Subtract(rhs)
- }},
-
- // Multiply operator
- {Operator: operators.Multiply,
- OperandTrait: traits.MultiplierType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- return lhs.(traits.Multiplier).Multiply(rhs)
- }},
-
- // Divide operator
- {Operator: operators.Divide,
- OperandTrait: traits.DividerType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- return lhs.(traits.Divider).Divide(rhs)
- }},
-
- // Modulo operator
- {Operator: operators.Modulo,
- OperandTrait: traits.ModderType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- return lhs.(traits.Modder).Modulo(rhs)
- }},
-
- // Negate operator
- {Operator: operators.Negate,
- OperandTrait: traits.NegatorType,
- Unary: func(value ref.Val) ref.Val {
- if types.IsBool(value) {
- return types.ValOrErr(value, "no such overload")
- }
- return value.(traits.Negater).Negate()
- }},
-
- // Index operator
- {Operator: operators.Index,
- OperandTrait: traits.IndexerType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- return lhs.(traits.Indexer).Get(rhs)
- }},
-
- // Size function
- {Operator: overloads.Size,
- OperandTrait: traits.SizerType,
- Unary: func(value ref.Val) ref.Val {
- return value.(traits.Sizer).Size()
- }},
-
- // In operator
- {Operator: operators.In, Binary: inAggregate},
- // Deprecated: in operator, may be overridden in the environment.
- {Operator: operators.OldIn, Binary: inAggregate},
-
- // Matches function
- {Operator: overloads.Matches,
- OperandTrait: traits.MatcherType,
- Binary: func(lhs ref.Val, rhs ref.Val) ref.Val {
- return lhs.(traits.Matcher).Match(rhs)
- }},
-
- // Type conversion functions
- // TODO: verify type conversion safety of numeric values.
-
- // Int conversions.
- {Operator: overloads.TypeConvertInt,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.IntType)
- }},
-
- // Uint conversions.
- {Operator: overloads.TypeConvertUint,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.UintType)
- }},
-
- // Double conversions.
- {Operator: overloads.TypeConvertDouble,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.DoubleType)
- }},
-
- // Bool conversions.
- {Operator: overloads.TypeConvertBool,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.BoolType)
- }},
-
- // Bytes conversions.
- {Operator: overloads.TypeConvertBytes,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.BytesType)
- }},
-
- // String conversions.
- {Operator: overloads.TypeConvertString,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.StringType)
- }},
-
- // Timestamp conversions.
- {Operator: overloads.TypeConvertTimestamp,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.TimestampType)
- }},
-
- // Duration conversions.
- {Operator: overloads.TypeConvertDuration,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.DurationType)
- }},
-
- // Type operations.
- {Operator: overloads.TypeConvertType,
- Unary: func(value ref.Val) ref.Val {
- return value.ConvertToType(types.TypeType)
- }},
-
- // Dyn conversion (identity function).
- {Operator: overloads.TypeConvertDyn,
- Unary: func(value ref.Val) ref.Val {
- return value
- }},
-
- {Operator: overloads.Iterator,
- OperandTrait: traits.IterableType,
- Unary: func(value ref.Val) ref.Val {
- return value.(traits.Iterable).Iterator()
- }},
-
- {Operator: overloads.HasNext,
- OperandTrait: traits.IteratorType,
- Unary: func(value ref.Val) ref.Val {
- return value.(traits.Iterator).HasNext()
- }},
-
- {Operator: overloads.Next,
- OperandTrait: traits.IteratorType,
- Unary: func(value ref.Val) ref.Val {
- return value.(traits.Iterator).Next()
- }},
- }
-
-}
-
-func notStrictlyFalse(value ref.Val) ref.Val {
- if types.IsBool(value) {
- return value
- }
- return types.True
-}
-
-func inAggregate(lhs ref.Val, rhs ref.Val) ref.Val {
- if rhs.Type().HasTrait(traits.ContainerType) {
- return rhs.(traits.Container).Contains(lhs)
- }
- return types.ValOrErr(rhs, "no such overload")
-}
diff --git a/vendor/github.com/google/cel-go/interpreter/interpretable.go b/vendor/github.com/google/cel-go/interpreter/interpretable.go
index eedf67d..ebc432e 100644
--- a/vendor/github.com/google/cel-go/interpreter/interpretable.go
+++ b/vendor/github.com/google/cel-go/interpreter/interpretable.go
@@ -15,12 +15,15 @@
package interpreter
import (
+ "fmt"
+ "sync"
+
+ "github.com/google/cel-go/common/functions"
"github.com/google/cel-go/common/operators"
"github.com/google/cel-go/common/overloads"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
- "github.com/google/cel-go/interpreter/functions"
)
// Interpretable can accept a given Activation and produce a value along with
@@ -50,7 +53,7 @@ type InterpretableAttribute interface {
Attr() Attribute
// Adapter returns the type adapter to be used for adapting resolved Attribute values.
- Adapter() ref.TypeAdapter
+ Adapter() types.Adapter
// AddQualifier proxies the Attribute.AddQualifier method.
//
@@ -69,6 +72,7 @@ type InterpretableAttribute interface {
// to whether the qualifier is present.
QualifyIfPresent(vars Activation, obj any, presenceOnly bool) (any, bool, error)
+ // IsOptional indicates whether the resulting value is an optional type.
IsOptional() bool
// Resolve returns the value of the Attribute given the current Activation.
@@ -93,7 +97,7 @@ type InterpretableCall interface {
Args() []Interpretable
}
-// InterpretableConstructor interface for inspecting Interpretable instructions that initialize a list, map
+// InterpretableConstructor interface for inspecting Interpretable instructions that initialize a list, map
// or struct.
type InterpretableConstructor interface {
Interpretable
@@ -108,10 +112,8 @@ type InterpretableConstructor interface {
// Core Interpretable implementations used during the program planning phase.
type evalTestOnly struct {
- id int64
- attr InterpretableAttribute
- qual Qualifier
- field types.String
+ id int64
+ InterpretableAttribute
}
// ID implements the Interpretable interface method.
@@ -121,28 +123,55 @@ func (test *evalTestOnly) ID() int64 {
// Eval implements the Interpretable interface method.
func (test *evalTestOnly) Eval(ctx Activation) ref.Val {
- val, err := test.attr.Resolve(ctx)
+ val, err := test.Resolve(ctx)
+ // Return an error if the resolve step fails
if err != nil {
- return types.NewErr(err.Error())
+ return types.LabelErrNode(test.id, types.WrapErr(err))
}
- optVal, isOpt := val.(*types.Optional)
- if isOpt {
- if !optVal.HasValue() {
- return types.False
- }
- val = optVal.GetValue()
+ if optVal, isOpt := val.(*types.Optional); isOpt {
+ return types.Bool(optVal.HasValue())
}
- out, found, err := test.qual.QualifyIfPresent(ctx, val, true)
+ return test.Adapter().NativeToValue(val)
+}
+
+// AddQualifier appends a qualifier that will always and only perform a presence test.
+func (test *evalTestOnly) AddQualifier(q Qualifier) (Attribute, error) {
+ cq, ok := q.(ConstantQualifier)
+ if !ok {
+ return nil, fmt.Errorf("test only expressions must have constant qualifiers: %v", q)
+ }
+ return test.InterpretableAttribute.AddQualifier(&testOnlyQualifier{ConstantQualifier: cq})
+}
+
+type testOnlyQualifier struct {
+ ConstantQualifier
+}
+
+// Qualify determines whether the test-only qualifier is present on the input object.
+func (q *testOnlyQualifier) Qualify(vars Activation, obj any) (any, error) {
+ out, present, err := q.ConstantQualifier.QualifyIfPresent(vars, obj, true)
if err != nil {
- return types.NewErr(err.Error())
+ return nil, err
}
if unk, isUnk := out.(types.Unknown); isUnk {
- return unk
+ return unk, nil
}
- if found {
- return types.True
+ if opt, isOpt := out.(types.Optional); isOpt {
+ return opt.HasValue(), nil
}
- return types.False
+ return present, nil
+}
+
+// QualifyIfPresent returns whether the target field in the test-only expression is present.
+func (q *testOnlyQualifier) QualifyIfPresent(vars Activation, obj any, presenceOnly bool) (any, bool, error) {
+ // Only ever test for presence.
+ return q.ConstantQualifier.QualifyIfPresent(vars, obj, true)
+}
+
+// QualifierValueEquals determines whether the test-only constant qualifier equals the input value.
+func (q *testOnlyQualifier) QualifierValueEquals(value any) bool {
+ // The input qualifier will always be of type string
+ return q.ConstantQualifier.Value().Value() == value
}
// NewConstValue creates a new constant valued Interpretable.
@@ -174,9 +203,8 @@ func (cons *evalConst) Value() ref.Val {
}
type evalOr struct {
- id int64
- lhs Interpretable
- rhs Interpretable
+ id int64
+ terms []Interpretable
}
// ID implements the Interpretable interface method.
@@ -186,41 +214,40 @@ func (or *evalOr) ID() int64 {
// Eval implements the Interpretable interface method.
func (or *evalOr) Eval(ctx Activation) ref.Val {
- // short-circuit lhs.
- lVal := or.lhs.Eval(ctx)
- lBool, lok := lVal.(types.Bool)
- if lok && lBool == types.True {
- return types.True
- }
- // short-circuit on rhs.
- rVal := or.rhs.Eval(ctx)
- rBool, rok := rVal.(types.Bool)
- if rok && rBool == types.True {
- return types.True
- }
- // return if both sides are bool false.
- if lok && rok {
- return types.False
- }
- // TODO: return both values as a set if both are unknown or error.
- // prefer left unknown to right unknown.
- if types.IsUnknown(lVal) {
- return lVal
+ var err ref.Val = nil
+ var unk *types.Unknown
+ for _, term := range or.terms {
+ val := term.Eval(ctx)
+ boolVal, ok := val.(types.Bool)
+ // short-circuit on true.
+ if ok && boolVal == types.True {
+ return types.True
+ }
+ if !ok {
+ isUnk := false
+ unk, isUnk = types.MaybeMergeUnknowns(val, unk)
+ if !isUnk && err == nil {
+ if types.IsError(val) {
+ err = val
+ } else {
+ err = types.MaybeNoSuchOverloadErr(val)
+ }
+ err = types.LabelErrNode(or.id, err)
+ }
+ }
}
- if types.IsUnknown(rVal) {
- return rVal
+ if unk != nil {
+ return unk
}
- // If the left-hand side is non-boolean return it as the error.
- if types.IsError(lVal) {
- return lVal
+ if err != nil {
+ return err
}
- return types.ValOrErr(rVal, "no such overload")
+ return types.False
}
type evalAnd struct {
- id int64
- lhs Interpretable
- rhs Interpretable
+ id int64
+ terms []Interpretable
}
// ID implements the Interpretable interface method.
@@ -230,35 +257,35 @@ func (and *evalAnd) ID() int64 {
// Eval implements the Interpretable interface method.
func (and *evalAnd) Eval(ctx Activation) ref.Val {
- // short-circuit lhs.
- lVal := and.lhs.Eval(ctx)
- lBool, lok := lVal.(types.Bool)
- if lok && lBool == types.False {
- return types.False
- }
- // short-circuit on rhs.
- rVal := and.rhs.Eval(ctx)
- rBool, rok := rVal.(types.Bool)
- if rok && rBool == types.False {
- return types.False
- }
- // return if both sides are bool true.
- if lok && rok {
- return types.True
- }
- // TODO: return both values as a set if both are unknown or error.
- // prefer left unknown to right unknown.
- if types.IsUnknown(lVal) {
- return lVal
+ var err ref.Val = nil
+ var unk *types.Unknown
+ for _, term := range and.terms {
+ val := term.Eval(ctx)
+ boolVal, ok := val.(types.Bool)
+ // short-circuit on false.
+ if ok && boolVal == types.False {
+ return types.False
+ }
+ if !ok {
+ isUnk := false
+ unk, isUnk = types.MaybeMergeUnknowns(val, unk)
+ if !isUnk && err == nil {
+ if types.IsError(val) {
+ err = val
+ } else {
+ err = types.MaybeNoSuchOverloadErr(val)
+ }
+ err = types.LabelErrNode(and.id, err)
+ }
+ }
}
- if types.IsUnknown(rVal) {
- return rVal
+ if unk != nil {
+ return unk
}
- // If the left-hand side is non-boolean return it as the error.
- if types.IsError(lVal) {
- return lVal
+ if err != nil {
+ return err
}
- return types.ValOrErr(rVal, "no such overload")
+ return types.True
}
type evalEq struct {
@@ -353,7 +380,7 @@ func (zero *evalZeroArity) ID() int64 {
// Eval implements the Interpretable interface method.
func (zero *evalZeroArity) Eval(ctx Activation) ref.Val {
- return zero.impl()
+ return types.LabelErrNode(zero.id, zero.impl())
}
// Function implements the InterpretableCall interface method.
@@ -397,14 +424,14 @@ func (un *evalUnary) Eval(ctx Activation) ref.Val {
// If the implementation is bound and the argument value has the right traits required to
// invoke it, then call the implementation.
if un.impl != nil && (un.trait == 0 || (!strict && types.IsUnknownOrError(argVal)) || argVal.Type().HasTrait(un.trait)) {
- return un.impl(argVal)
+ return types.LabelErrNode(un.id, un.impl(argVal))
}
// Otherwise, if the argument is a ReceiverType attempt to invoke the receiver method on the
// operand (arg0).
if argVal.Type().HasTrait(traits.ReceiverType) {
- return argVal.(traits.Receiver).Receive(un.function, un.overload, []ref.Val{})
+ return types.LabelErrNode(un.id, argVal.(traits.Receiver).Receive(un.function, un.overload, []ref.Val{}))
}
- return types.NewErr("no such overload: %s", un.function)
+ return types.NewErrWithNodeID(un.id, "no such overload: %s", un.function)
}
// Function implements the InterpretableCall interface method.
@@ -455,14 +482,14 @@ func (bin *evalBinary) Eval(ctx Activation) ref.Val {
// If the implementation is bound and the argument value has the right traits required to
// invoke it, then call the implementation.
if bin.impl != nil && (bin.trait == 0 || (!strict && types.IsUnknownOrError(lVal)) || lVal.Type().HasTrait(bin.trait)) {
- return bin.impl(lVal, rVal)
+ return types.LabelErrNode(bin.id, bin.impl(lVal, rVal))
}
// Otherwise, if the argument is a ReceiverType attempt to invoke the receiver method on the
// operand (arg0).
if lVal.Type().HasTrait(traits.ReceiverType) {
- return lVal.(traits.Receiver).Receive(bin.function, bin.overload, []ref.Val{rVal})
+ return types.LabelErrNode(bin.id, lVal.(traits.Receiver).Receive(bin.function, bin.overload, []ref.Val{rVal}))
}
- return types.NewErr("no such overload: %s", bin.function)
+ return types.NewErrWithNodeID(bin.id, "no such overload: %s", bin.function)
}
// Function implements the InterpretableCall interface method.
@@ -521,14 +548,14 @@ func (fn *evalVarArgs) Eval(ctx Activation) ref.Val {
// invoke it, then call the implementation.
arg0 := argVals[0]
if fn.impl != nil && (fn.trait == 0 || (!strict && types.IsUnknownOrError(arg0)) || arg0.Type().HasTrait(fn.trait)) {
- return fn.impl(argVals...)
+ return types.LabelErrNode(fn.id, fn.impl(argVals...))
}
// Otherwise, if the argument is a ReceiverType attempt to invoke the receiver method on the
// operand (arg0).
if arg0.Type().HasTrait(traits.ReceiverType) {
- return arg0.(traits.Receiver).Receive(fn.function, fn.overload, argVals[1:])
+ return types.LabelErrNode(fn.id, arg0.(traits.Receiver).Receive(fn.function, fn.overload, argVals[1:]))
}
- return types.NewErr("no such overload: %s", fn.function)
+ return types.NewErrWithNodeID(fn.id, "no such overload: %s %d", fn.function, fn.id)
}
// Function implements the InterpretableCall interface method.
@@ -551,7 +578,7 @@ type evalList struct {
elems []Interpretable
optionals []bool
hasOptionals bool
- adapter ref.TypeAdapter
+ adapter types.Adapter
}
// ID implements the Interpretable interface method.
@@ -571,7 +598,7 @@ func (l *evalList) Eval(ctx Activation) ref.Val {
if l.hasOptionals && l.optionals[i] {
optVal, ok := elemVal.(*types.Optional)
if !ok {
- return invalidOptionalElementInit(elemVal)
+ return types.LabelErrNode(l.id, invalidOptionalElementInit(elemVal))
}
if !optVal.HasValue() {
continue
@@ -597,7 +624,7 @@ type evalMap struct {
vals []Interpretable
optionals []bool
hasOptionals bool
- adapter ref.TypeAdapter
+ adapter types.Adapter
}
// ID implements the Interpretable interface method.
@@ -621,7 +648,7 @@ func (m *evalMap) Eval(ctx Activation) ref.Val {
if m.hasOptionals && m.optionals[i] {
optVal, ok := valVal.(*types.Optional)
if !ok {
- return invalidOptionalEntryInit(keyVal, valVal)
+ return types.LabelErrNode(m.id, invalidOptionalEntryInit(keyVal, valVal))
}
if !optVal.HasValue() {
delete(entries, keyVal)
@@ -661,7 +688,7 @@ type evalObj struct {
vals []Interpretable
optionals []bool
hasOptionals bool
- provider ref.TypeProvider
+ provider types.Provider
}
// ID implements the Interpretable interface method.
@@ -681,7 +708,7 @@ func (o *evalObj) Eval(ctx Activation) ref.Val {
if o.hasOptionals && o.optionals[i] {
optVal, ok := val.(*types.Optional)
if !ok {
- return invalidOptionalEntryInit(field, val)
+ return types.LabelErrNode(o.id, invalidOptionalEntryInit(field, val))
}
if !optVal.HasValue() {
delete(fieldVals, field)
@@ -691,27 +718,34 @@ func (o *evalObj) Eval(ctx Activation) ref.Val {
}
fieldVals[field] = val
}
- return o.provider.NewValue(o.typeName, fieldVals)
+ return types.LabelErrNode(o.id, o.provider.NewValue(o.typeName, fieldVals))
}
+// InitVals implements the InterpretableConstructor interface method.
func (o *evalObj) InitVals() []Interpretable {
return o.vals
}
+// Type implements the InterpretableConstructor interface method.
func (o *evalObj) Type() ref.Type {
- return types.NewObjectTypeValue(o.typeName)
+ return types.NewObjectType(o.typeName)
}
type evalFold struct {
- id int64
- accuVar string
- iterVar string
- iterRange Interpretable
- accu Interpretable
- cond Interpretable
- step Interpretable
- result Interpretable
- adapter ref.TypeAdapter
+ id int64
+ accuVar string
+ iterVar string
+ iterVar2 string
+ iterRange Interpretable
+ accu Interpretable
+ cond Interpretable
+ step Interpretable
+ result Interpretable
+ adapter types.Adapter
+
+ // note an exhaustive fold will ensure that all branches are evaluated
+ // when using mutable values, these branches will mutate the final result
+ // rather than make a throw-away computation.
exhaustive bool
interruptable bool
}
@@ -723,64 +757,30 @@ func (fold *evalFold) ID() int64 {
// Eval implements the Interpretable interface method.
func (fold *evalFold) Eval(ctx Activation) ref.Val {
- foldRange := fold.iterRange.Eval(ctx)
- if !foldRange.Type().HasTrait(traits.IterableType) {
- return types.ValOrErr(foldRange, "got '%T', expected iterable type", foldRange)
- }
- // Configure the fold activation with the accumulator initial value.
- accuCtx := varActivationPool.Get().(*varActivation)
- accuCtx.parent = ctx
- accuCtx.name = fold.accuVar
- accuCtx.val = fold.accu.Eval(ctx)
- // If the accumulator starts as an empty list, then the comprehension will build a list
- // so create a mutable list to optimize the cost of the inner loop.
- l, ok := accuCtx.val.(traits.Lister)
- buildingList := false
- if !fold.exhaustive && ok && l.Size() == types.IntZero {
- buildingList = true
- accuCtx.val = types.NewMutableList(fold.adapter)
- }
- iterCtx := varActivationPool.Get().(*varActivation)
- iterCtx.parent = accuCtx
- iterCtx.name = fold.iterVar
-
- interrupted := false
- it := foldRange.(traits.Iterable).Iterator()
- for it.HasNext() == types.True {
- // Modify the iter var in the fold activation.
- iterCtx.val = it.Next()
+ // Initialize the folder interface
+ f := newFolder(fold, ctx)
+ defer releaseFolder(f)
- // Evaluate the condition, terminate the loop if false.
- cond := fold.cond.Eval(iterCtx)
- condBool, ok := cond.(types.Bool)
- if !fold.exhaustive && ok && condBool != types.True {
- break
- }
- // Evaluate the evaluation step into accu var.
- accuCtx.val = fold.step.Eval(iterCtx)
- if fold.interruptable {
- if stop, found := ctx.ResolveName("#interrupted"); found && stop == true {
- interrupted = true
- break
- }
+ foldRange := fold.iterRange.Eval(ctx)
+ if fold.iterVar2 != "" {
+ var foldable traits.Foldable
+ switch r := foldRange.(type) {
+ case traits.Mapper:
+ foldable = types.ToFoldableMap(r)
+ case traits.Lister:
+ foldable = types.ToFoldableList(r)
+ default:
+ return types.NewErrWithNodeID(fold.ID(), "unsupported comprehension range type: %T", foldRange)
}
- }
- varActivationPool.Put(iterCtx)
- if interrupted {
- varActivationPool.Put(accuCtx)
- return types.NewErr("operation interrupted")
+ foldable.Fold(f)
+ return f.evalResult()
}
- // Compute the result.
- res := fold.result.Eval(accuCtx)
- varActivationPool.Put(accuCtx)
- // Convert a mutable list to an immutable one, if the comprehension has generated a list as a result.
- if !types.IsUnknownOrError(res) && buildingList {
- if _, ok := res.(traits.MutableLister); ok {
- res = res.(traits.MutableLister).ToImmutableList()
- }
+ if !foldRange.Type().HasTrait(traits.IterableType) {
+ return types.ValOrErr(foldRange, "got '%T', expected iterable type", foldRange)
}
- return res
+ iterable := foldRange.(traits.Iterable)
+ return f.foldIterable(iterable)
}
// Optional Interpretable implementations that specialize, subsume, or extend the core evaluation
@@ -837,18 +837,40 @@ type evalWatchAttr struct {
// AddQualifier creates a wrapper over the incoming qualifier which observes the qualification
// result.
func (e *evalWatchAttr) AddQualifier(q Qualifier) (Attribute, error) {
- cq, isConst := q.(ConstantQualifier)
- if isConst {
+ switch qual := q.(type) {
+ // By default, the qualifier is either a constant or an attribute
+ // There may be some custom cases where the attribute is neither.
+ case ConstantQualifier:
+ // Expose a method to test whether the qualifier matches the input pattern.
q = &evalWatchConstQual{
- ConstantQualifier: cq,
+ ConstantQualifier: qual,
observer: e.observer,
- adapter: e.InterpretableAttribute.Adapter(),
+ adapter: e.Adapter(),
}
- } else {
+ case *evalWatchAttr:
+ // Unwrap the evalWatchAttr since the observation will be applied during Qualify or
+ // QualifyIfPresent rather than Eval.
+ q = &evalWatchAttrQual{
+ Attribute: qual.InterpretableAttribute,
+ observer: e.observer,
+ adapter: e.Adapter(),
+ }
+ case Attribute:
+ // Expose methods which intercept the qualification prior to being applied as a qualifier.
+ // Using this interface ensures that the qualifier is converted to a constant value one
+ // time during attribute pattern matching as the method embeds the Attribute interface
+ // needed to trip the conversion to a constant.
+ q = &evalWatchAttrQual{
+ Attribute: qual,
+ observer: e.observer,
+ adapter: e.Adapter(),
+ }
+ default:
+ // This is likely a custom qualifier type.
q = &evalWatchQual{
- Qualifier: q,
+ Qualifier: qual,
observer: e.observer,
- adapter: e.InterpretableAttribute.Adapter(),
+ adapter: e.Adapter(),
}
}
_, err := e.InterpretableAttribute.AddQualifier(q)
@@ -867,7 +889,7 @@ func (e *evalWatchAttr) Eval(vars Activation) ref.Val {
type evalWatchConstQual struct {
ConstantQualifier
observer EvalObserver
- adapter ref.TypeAdapter
+ adapter types.Adapter
}
// Qualify observes the qualification of a object via a constant boolean, int, string, or uint.
@@ -875,7 +897,7 @@ func (e *evalWatchConstQual) Qualify(vars Activation, obj any) (any, error) {
out, err := e.ConstantQualifier.Qualify(vars, obj)
var val ref.Val
if err != nil {
- val = types.NewErr(err.Error())
+ val = types.LabelErrNode(e.ID(), types.WrapErr(err))
} else {
val = e.adapter.NativeToValue(out)
}
@@ -883,17 +905,71 @@ func (e *evalWatchConstQual) Qualify(vars Activation, obj any) (any, error) {
return out, err
}
+// QualifyIfPresent conditionally qualifies the variable and only records a value if one is present.
+func (e *evalWatchConstQual) QualifyIfPresent(vars Activation, obj any, presenceOnly bool) (any, bool, error) {
+ out, present, err := e.ConstantQualifier.QualifyIfPresent(vars, obj, presenceOnly)
+ var val ref.Val
+ if err != nil {
+ val = types.LabelErrNode(e.ID(), types.WrapErr(err))
+ } else if out != nil {
+ val = e.adapter.NativeToValue(out)
+ } else if presenceOnly {
+ val = types.Bool(present)
+ }
+ if present || presenceOnly {
+ e.observer(e.ID(), e.ConstantQualifier, val)
+ }
+ return out, present, err
+}
+
// QualifierValueEquals tests whether the incoming value is equal to the qualifying constant.
func (e *evalWatchConstQual) QualifierValueEquals(value any) bool {
qve, ok := e.ConstantQualifier.(qualifierValueEquator)
return ok && qve.QualifierValueEquals(value)
}
+// evalWatchAttrQual observes the qualification of an object by a value computed at runtime.
+type evalWatchAttrQual struct {
+ Attribute
+ observer EvalObserver
+ adapter ref.TypeAdapter
+}
+
+// Qualify observes the qualification of a object via a value computed at runtime.
+func (e *evalWatchAttrQual) Qualify(vars Activation, obj any) (any, error) {
+ out, err := e.Attribute.Qualify(vars, obj)
+ var val ref.Val
+ if err != nil {
+ val = types.LabelErrNode(e.ID(), types.WrapErr(err))
+ } else {
+ val = e.adapter.NativeToValue(out)
+ }
+ e.observer(e.ID(), e.Attribute, val)
+ return out, err
+}
+
+// QualifyIfPresent conditionally qualifies the variable and only records a value if one is present.
+func (e *evalWatchAttrQual) QualifyIfPresent(vars Activation, obj any, presenceOnly bool) (any, bool, error) {
+ out, present, err := e.Attribute.QualifyIfPresent(vars, obj, presenceOnly)
+ var val ref.Val
+ if err != nil {
+ val = types.LabelErrNode(e.ID(), types.WrapErr(err))
+ } else if out != nil {
+ val = e.adapter.NativeToValue(out)
+ } else if presenceOnly {
+ val = types.Bool(present)
+ }
+ if present || presenceOnly {
+ e.observer(e.ID(), e.Attribute, val)
+ }
+ return out, present, err
+}
+
// evalWatchQual observes the qualification of an object by a value computed at runtime.
type evalWatchQual struct {
Qualifier
observer EvalObserver
- adapter ref.TypeAdapter
+ adapter types.Adapter
}
// Qualify observes the qualification of a object via a value computed at runtime.
@@ -901,7 +977,7 @@ func (e *evalWatchQual) Qualify(vars Activation, obj any) (any, error) {
out, err := e.Qualifier.Qualify(vars, obj)
var val ref.Val
if err != nil {
- val = types.NewErr(err.Error())
+ val = types.LabelErrNode(e.ID(), types.WrapErr(err))
} else {
val = e.adapter.NativeToValue(out)
}
@@ -909,6 +985,23 @@ func (e *evalWatchQual) Qualify(vars Activation, obj any) (any, error) {
return out, err
}
+// QualifyIfPresent conditionally qualifies the variable and only records a value if one is present.
+func (e *evalWatchQual) QualifyIfPresent(vars Activation, obj any, presenceOnly bool) (any, bool, error) {
+ out, present, err := e.Qualifier.QualifyIfPresent(vars, obj, presenceOnly)
+ var val ref.Val
+ if err != nil {
+ val = types.LabelErrNode(e.ID(), types.WrapErr(err))
+ } else if out != nil {
+ val = e.adapter.NativeToValue(out)
+ } else if presenceOnly {
+ val = types.Bool(present)
+ }
+ if present || presenceOnly {
+ e.observer(e.ID(), e.Qualifier, val)
+ }
+ return out, present, err
+}
+
// evalWatchConst describes a watcher of an instConst Interpretable.
type evalWatchConst struct {
InterpretableConst
@@ -924,9 +1017,8 @@ func (e *evalWatchConst) Eval(vars Activation) ref.Val {
// evalExhaustiveOr is just like evalOr, but does not short-circuit argument evaluation.
type evalExhaustiveOr struct {
- id int64
- lhs Interpretable
- rhs Interpretable
+ id int64
+ terms []Interpretable
}
// ID implements the Interpretable interface method.
@@ -936,38 +1028,44 @@ func (or *evalExhaustiveOr) ID() int64 {
// Eval implements the Interpretable interface method.
func (or *evalExhaustiveOr) Eval(ctx Activation) ref.Val {
- lVal := or.lhs.Eval(ctx)
- rVal := or.rhs.Eval(ctx)
- lBool, lok := lVal.(types.Bool)
- if lok && lBool == types.True {
- return types.True
+ var err ref.Val = nil
+ var unk *types.Unknown
+ isTrue := false
+ for _, term := range or.terms {
+ val := term.Eval(ctx)
+ boolVal, ok := val.(types.Bool)
+ // flag the result as true
+ if ok && boolVal == types.True {
+ isTrue = true
+ }
+ if !ok && !isTrue {
+ isUnk := false
+ unk, isUnk = types.MaybeMergeUnknowns(val, unk)
+ if !isUnk && err == nil {
+ if types.IsError(val) {
+ err = val
+ } else {
+ err = types.MaybeNoSuchOverloadErr(val)
+ }
+ }
+ }
}
- rBool, rok := rVal.(types.Bool)
- if rok && rBool == types.True {
+ if isTrue {
return types.True
}
- if lok && rok {
- return types.False
- }
- if types.IsUnknown(lVal) {
- return lVal
- }
- if types.IsUnknown(rVal) {
- return rVal
+ if unk != nil {
+ return unk
}
- // TODO: Combine the errors into a set in the future.
- // If the left-hand side is non-boolean return it as the error.
- if types.IsError(lVal) {
- return lVal
+ if err != nil {
+ return err
}
- return types.MaybeNoSuchOverloadErr(rVal)
+ return types.False
}
// evalExhaustiveAnd is just like evalAnd, but does not short-circuit argument evaluation.
type evalExhaustiveAnd struct {
- id int64
- lhs Interpretable
- rhs Interpretable
+ id int64
+ terms []Interpretable
}
// ID implements the Interpretable interface method.
@@ -977,38 +1075,45 @@ func (and *evalExhaustiveAnd) ID() int64 {
// Eval implements the Interpretable interface method.
func (and *evalExhaustiveAnd) Eval(ctx Activation) ref.Val {
- lVal := and.lhs.Eval(ctx)
- rVal := and.rhs.Eval(ctx)
- lBool, lok := lVal.(types.Bool)
- if lok && lBool == types.False {
- return types.False
+ var err ref.Val = nil
+ var unk *types.Unknown
+ isFalse := false
+ for _, term := range and.terms {
+ val := term.Eval(ctx)
+ boolVal, ok := val.(types.Bool)
+ // short-circuit on false.
+ if ok && boolVal == types.False {
+ isFalse = true
+ }
+ if !ok && !isFalse {
+ isUnk := false
+ unk, isUnk = types.MaybeMergeUnknowns(val, unk)
+ if !isUnk && err == nil {
+ if types.IsError(val) {
+ err = val
+ } else {
+ err = types.MaybeNoSuchOverloadErr(val)
+ }
+ }
+ }
}
- rBool, rok := rVal.(types.Bool)
- if rok && rBool == types.False {
+ if isFalse {
return types.False
}
- if lok && rok {
- return types.True
- }
- if types.IsUnknown(lVal) {
- return lVal
- }
- if types.IsUnknown(rVal) {
- return rVal
+ if unk != nil {
+ return unk
}
- // TODO: Combine the errors into a set in the future.
- // If the left-hand side is non-boolean return it as the error.
- if types.IsError(lVal) {
- return lVal
+ if err != nil {
+ return err
}
- return types.MaybeNoSuchOverloadErr(rVal)
+ return types.True
}
// evalExhaustiveConditional is like evalConditional, but does not short-circuit argument
// evaluation.
type evalExhaustiveConditional struct {
id int64
- adapter ref.TypeAdapter
+ adapter types.Adapter
attr *conditionalAttribute
}
@@ -1028,23 +1133,25 @@ func (cond *evalExhaustiveConditional) Eval(ctx Activation) ref.Val {
}
if cBool {
if tErr != nil {
- return types.NewErr(tErr.Error())
+ return types.LabelErrNode(cond.id, types.WrapErr(tErr))
}
return cond.adapter.NativeToValue(tVal)
}
if fErr != nil {
- return types.NewErr(fErr.Error())
+ return types.LabelErrNode(cond.id, types.WrapErr(fErr))
}
return cond.adapter.NativeToValue(fVal)
}
// evalAttr evaluates an Attribute value.
type evalAttr struct {
- adapter ref.TypeAdapter
+ adapter types.Adapter
attr Attribute
optional bool
}
+var _ InterpretableAttribute = &evalAttr{}
+
// ID of the attribute instruction.
func (a *evalAttr) ID() int64 {
return a.attr.ID()
@@ -1063,7 +1170,7 @@ func (a *evalAttr) Attr() Attribute {
}
// Adapter implements the InterpretableAttribute interface method.
-func (a *evalAttr) Adapter() ref.TypeAdapter {
+func (a *evalAttr) Adapter() types.Adapter {
return a.adapter
}
@@ -1071,7 +1178,7 @@ func (a *evalAttr) Adapter() ref.TypeAdapter {
func (a *evalAttr) Eval(ctx Activation) ref.Val {
v, err := a.attr.Resolve(ctx)
if err != nil {
- return types.NewErr(err.Error())
+ return types.LabelErrNode(a.ID(), types.WrapErr(err))
}
return a.adapter.NativeToValue(v)
}
@@ -1129,3 +1236,172 @@ func invalidOptionalEntryInit(field any, value ref.Val) ref.Val {
func invalidOptionalElementInit(value ref.Val) ref.Val {
return types.NewErr("cannot initialize optional list element from non-optional value %v", value)
}
+
+// newFolder creates or initializes a pooled folder instance.
+func newFolder(eval *evalFold, ctx Activation) *folder {
+ f := folderPool.Get().(*folder)
+ f.evalFold = eval
+ f.Activation = ctx
+ return f
+}
+
+// releaseFolder resets and releases a pooled folder instance.
+func releaseFolder(f *folder) {
+ f.reset()
+ folderPool.Put(f)
+}
+
+// folder tracks the state associated with folding a list or map with a comprehension v2 style macro.
+//
+// The folder embeds an interpreter.Activation and Interpretable evalFold value as well as implements
+// the traits.Folder interface methods.
+//
+// Instances of a folder are intended to be pooled to minimize allocation overhead with this temporary
+// bookkeeping object which supports lazy evaluation of the accumulator init expression which is useful
+// in preserving evaluation order semantics which might otherwise be disrupted through the use of
+// cel.bind or cel.@block.
+type folder struct {
+ *evalFold
+ Activation
+
+ // fold state objects.
+ accuVal ref.Val
+ iterVar1Val any
+ iterVar2Val any
+
+ // bookkeeping flags to modify Activation and fold behaviors.
+ initialized bool
+ mutableValue bool
+ interrupted bool
+ computeResult bool
+}
+
+func (f *folder) foldIterable(iterable traits.Iterable) ref.Val {
+ it := iterable.Iterator()
+ for it.HasNext() == types.True {
+ f.iterVar1Val = it.Next()
+
+ cond := f.cond.Eval(f)
+ condBool, ok := cond.(types.Bool)
+ if f.interrupted || (!f.exhaustive && ok && condBool != types.True) {
+ return f.evalResult()
+ }
+
+ // Update the accumulation value and check for eval interuption.
+ f.accuVal = f.step.Eval(f)
+ f.initialized = true
+ if f.interruptable && checkInterrupt(f.Activation) {
+ f.interrupted = true
+ return f.evalResult()
+ }
+ }
+ return f.evalResult()
+}
+
+// FoldEntry will either fold comprehension v1 style macros if iterVar2 is unset, or comprehension v2 style
+// macros if both the iterVar and iterVar2 are set to non-empty strings.
+func (f *folder) FoldEntry(key, val any) bool {
+ // Default to referencing both values.
+ f.iterVar1Val = key
+ f.iterVar2Val = val
+
+ // Terminate evaluation if evaluation is interrupted or the condition is not true and exhaustive
+ // eval is not enabled.
+ cond := f.cond.Eval(f)
+ condBool, ok := cond.(types.Bool)
+ if f.interrupted || (!f.exhaustive && ok && condBool != types.True) {
+ return false
+ }
+
+ // Update the accumulation value and check for eval interuption.
+ f.accuVal = f.step.Eval(f)
+ f.initialized = true
+ if f.interruptable && checkInterrupt(f.Activation) {
+ f.interrupted = true
+ return false
+ }
+ return true
+}
+
+// ResolveName overrides the default Activation lookup to perform lazy initialization of the accumulator
+// and specialized lookups of iteration values with consideration for whether the final result is being
+// computed and the iteration variables should be ignored.
+func (f *folder) ResolveName(name string) (any, bool) {
+ if name == f.accuVar {
+ if !f.initialized {
+ f.initialized = true
+ initVal := f.accu.Eval(f.Activation)
+ if !f.exhaustive {
+ if l, isList := initVal.(traits.Lister); isList && l.Size() == types.IntZero {
+ initVal = types.NewMutableList(f.adapter)
+ f.mutableValue = true
+ }
+ if m, isMap := initVal.(traits.Mapper); isMap && m.Size() == types.IntZero {
+ initVal = types.NewMutableMap(f.adapter, map[ref.Val]ref.Val{})
+ f.mutableValue = true
+ }
+ }
+ f.accuVal = initVal
+ }
+ return f.accuVal, true
+ }
+ if !f.computeResult {
+ if name == f.iterVar {
+ f.iterVar1Val = f.adapter.NativeToValue(f.iterVar1Val)
+ return f.iterVar1Val, true
+ }
+ if name == f.iterVar2 {
+ f.iterVar2Val = f.adapter.NativeToValue(f.iterVar2Val)
+ return f.iterVar2Val, true
+ }
+ }
+ return f.Activation.ResolveName(name)
+}
+
+// evalResult computes the final result of the fold after all entries have been folded and accumulated.
+func (f *folder) evalResult() ref.Val {
+ f.computeResult = true
+ if f.interrupted {
+ return types.NewErr("operation interrupted")
+ }
+ res := f.result.Eval(f)
+ // Convert a mutable list or map to an immutable one if the comprehension has generated a list or
+ // map as a result.
+ if !types.IsUnknownOrError(res) && f.mutableValue {
+ if _, ok := res.(traits.MutableLister); ok {
+ res = res.(traits.MutableLister).ToImmutableList()
+ }
+ if _, ok := res.(traits.MutableMapper); ok {
+ res = res.(traits.MutableMapper).ToImmutableMap()
+ }
+ }
+ return res
+}
+
+// reset clears any state associated with folder evaluation.
+func (f *folder) reset() {
+ f.evalFold = nil
+ f.Activation = nil
+ f.accuVal = nil
+ f.iterVar1Val = nil
+ f.iterVar2Val = nil
+
+ f.initialized = false
+ f.mutableValue = false
+ f.interrupted = false
+ f.computeResult = false
+}
+
+func checkInterrupt(a Activation) bool {
+ stop, found := a.ResolveName("#interrupted")
+ return found && stop == true
+}
+
+var (
+ // pool of var folders to reduce allocations during folds.
+ folderPool = &sync.Pool{
+ New: func() any {
+ return &folder{}
+ },
+ }
+)
diff --git a/vendor/github.com/google/cel-go/interpreter/interpreter.go b/vendor/github.com/google/cel-go/interpreter/interpreter.go
index 707a610..0aca74d 100644
--- a/vendor/github.com/google/cel-go/interpreter/interpreter.go
+++ b/vendor/github.com/google/cel-go/interpreter/interpreter.go
@@ -18,22 +18,17 @@
package interpreter
import (
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/containers"
+ "github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/interpreter/functions"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
// Interpreter generates a new Interpretable from a checked or unchecked expression.
type Interpreter interface {
// NewInterpretable creates an Interpretable from a checked expression and an
// optional list of InterpretableDecorator values.
- NewInterpretable(checked *exprpb.CheckedExpr, decorators ...InterpretableDecorator) (Interpretable, error)
-
- // NewUncheckedInterpretable returns an Interpretable from a parsed expression
- // and an optional list of InterpretableDecorator values.
- NewUncheckedInterpretable(expr *exprpb.Expr, decorators ...InterpretableDecorator) (Interpretable, error)
+ NewInterpretable(exprAST *ast.AST, decorators ...InterpretableDecorator) (Interpretable, error)
}
// EvalObserver is a functional interface that accepts an expression id and an observed value.
@@ -154,8 +149,8 @@ func CompileRegexConstants(regexOptimizations ...*RegexOptimization) Interpretab
type exprInterpreter struct {
dispatcher Dispatcher
container *containers.Container
- provider ref.TypeProvider
- adapter ref.TypeAdapter
+ provider types.Provider
+ adapter types.Adapter
attrFactory AttributeFactory
}
@@ -163,8 +158,8 @@ type exprInterpreter struct {
// throughout the Eval of all Interpretable instances generated from it.
func NewInterpreter(dispatcher Dispatcher,
container *containers.Container,
- provider ref.TypeProvider,
- adapter ref.TypeAdapter,
+ provider types.Provider,
+ adapter types.Adapter,
attrFactory AttributeFactory) Interpreter {
return &exprInterpreter{
dispatcher: dispatcher,
@@ -174,20 +169,9 @@ func NewInterpreter(dispatcher Dispatcher,
attrFactory: attrFactory}
}
-// NewStandardInterpreter builds a Dispatcher and TypeProvider with support for all of the CEL
-// builtins defined in the language definition.
-func NewStandardInterpreter(container *containers.Container,
- provider ref.TypeProvider,
- adapter ref.TypeAdapter,
- resolver AttributeFactory) Interpreter {
- dispatcher := NewDispatcher()
- dispatcher.Add(functions.StandardOverloads()...)
- return NewInterpreter(dispatcher, container, provider, adapter, resolver)
-}
-
// NewIntepretable implements the Interpreter interface method.
func (i *exprInterpreter) NewInterpretable(
- checked *exprpb.CheckedExpr,
+ checked *ast.AST,
decorators ...InterpretableDecorator) (Interpretable, error) {
p := newPlanner(
i.dispatcher,
@@ -197,19 +181,5 @@ func (i *exprInterpreter) NewInterpretable(
i.container,
checked,
decorators...)
- return p.Plan(checked.GetExpr())
-}
-
-// NewUncheckedIntepretable implements the Interpreter interface method.
-func (i *exprInterpreter) NewUncheckedInterpretable(
- expr *exprpb.Expr,
- decorators ...InterpretableDecorator) (Interpretable, error) {
- p := newUncheckedPlanner(
- i.dispatcher,
- i.provider,
- i.adapter,
- i.attrFactory,
- i.container,
- decorators...)
- return p.Plan(expr)
+ return p.Plan(checked.Expr())
}
diff --git a/vendor/github.com/google/cel-go/interpreter/planner.go b/vendor/github.com/google/cel-go/interpreter/planner.go
index 9cf8e4e..f0fd4ea 100644
--- a/vendor/github.com/google/cel-go/interpreter/planner.go
+++ b/vendor/github.com/google/cel-go/interpreter/planner.go
@@ -18,19 +18,17 @@ import (
"fmt"
"strings"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/containers"
+ "github.com/google/cel-go/common/functions"
"github.com/google/cel-go/common/operators"
"github.com/google/cel-go/common/types"
- "github.com/google/cel-go/common/types/ref"
- "github.com/google/cel-go/interpreter/functions"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
// interpretablePlanner creates an Interpretable evaluation plan from a proto Expr value.
type interpretablePlanner interface {
// Plan generates an Interpretable value (or error) from the input proto Expr.
- Plan(expr *exprpb.Expr) (Interpretable, error)
+ Plan(expr ast.Expr) (Interpretable, error)
}
// newPlanner creates an interpretablePlanner which references a Dispatcher, TypeProvider,
@@ -38,11 +36,11 @@ type interpretablePlanner interface {
// functions, types, and namespaced identifiers at plan time rather than at runtime since
// it only needs to be done once and may be semi-expensive to compute.
func newPlanner(disp Dispatcher,
- provider ref.TypeProvider,
- adapter ref.TypeAdapter,
+ provider types.Provider,
+ adapter types.Adapter,
attrFactory AttributeFactory,
cont *containers.Container,
- checked *exprpb.CheckedExpr,
+ exprAST *ast.AST,
decorators ...InterpretableDecorator) interpretablePlanner {
return &planner{
disp: disp,
@@ -50,29 +48,8 @@ func newPlanner(disp Dispatcher,
adapter: adapter,
attrFactory: attrFactory,
container: cont,
- refMap: checked.GetReferenceMap(),
- typeMap: checked.GetTypeMap(),
- decorators: decorators,
- }
-}
-
-// newUncheckedPlanner creates an interpretablePlanner which references a Dispatcher, TypeProvider,
-// TypeAdapter, and Container to resolve functions and types at plan time. Namespaces present in
-// Select expressions are resolved lazily at evaluation time.
-func newUncheckedPlanner(disp Dispatcher,
- provider ref.TypeProvider,
- adapter ref.TypeAdapter,
- attrFactory AttributeFactory,
- cont *containers.Container,
- decorators ...InterpretableDecorator) interpretablePlanner {
- return &planner{
- disp: disp,
- provider: provider,
- adapter: adapter,
- attrFactory: attrFactory,
- container: cont,
- refMap: make(map[int64]*exprpb.Reference),
- typeMap: make(map[int64]*exprpb.Type),
+ refMap: exprAST.ReferenceMap(),
+ typeMap: exprAST.TypeMap(),
decorators: decorators,
}
}
@@ -80,12 +57,12 @@ func newUncheckedPlanner(disp Dispatcher,
// planner is an implementation of the interpretablePlanner interface.
type planner struct {
disp Dispatcher
- provider ref.TypeProvider
- adapter ref.TypeAdapter
+ provider types.Provider
+ adapter types.Adapter
attrFactory AttributeFactory
container *containers.Container
- refMap map[int64]*exprpb.Reference
- typeMap map[int64]*exprpb.Type
+ refMap map[int64]*ast.ReferenceInfo
+ typeMap map[int64]*types.Type
decorators []InterpretableDecorator
}
@@ -94,22 +71,24 @@ type planner struct {
// useful for layering functionality into the evaluation that is not natively understood by CEL,
// such as state-tracking, expression re-write, and possibly efficient thread-safe memoization of
// repeated expressions.
-func (p *planner) Plan(expr *exprpb.Expr) (Interpretable, error) {
- switch expr.GetExprKind().(type) {
- case *exprpb.Expr_CallExpr:
+func (p *planner) Plan(expr ast.Expr) (Interpretable, error) {
+ switch expr.Kind() {
+ case ast.CallKind:
return p.decorate(p.planCall(expr))
- case *exprpb.Expr_IdentExpr:
+ case ast.IdentKind:
return p.decorate(p.planIdent(expr))
- case *exprpb.Expr_SelectExpr:
+ case ast.LiteralKind:
+ return p.decorate(p.planConst(expr))
+ case ast.SelectKind:
return p.decorate(p.planSelect(expr))
- case *exprpb.Expr_ListExpr:
+ case ast.ListKind:
return p.decorate(p.planCreateList(expr))
- case *exprpb.Expr_StructExpr:
+ case ast.MapKind:
+ return p.decorate(p.planCreateMap(expr))
+ case ast.StructKind:
return p.decorate(p.planCreateStruct(expr))
- case *exprpb.Expr_ComprehensionExpr:
+ case ast.ComprehensionKind:
return p.decorate(p.planComprehension(expr))
- case *exprpb.Expr_ConstExpr:
- return p.decorate(p.planConst(expr))
}
return nil, fmt.Errorf("unsupported expr: %v", expr)
}
@@ -131,35 +110,32 @@ func (p *planner) decorate(i Interpretable, err error) (Interpretable, error) {
}
// planIdent creates an Interpretable that resolves an identifier from an Activation.
-func (p *planner) planIdent(expr *exprpb.Expr) (Interpretable, error) {
+func (p *planner) planIdent(expr ast.Expr) (Interpretable, error) {
// Establish whether the identifier is in the reference map.
- if identRef, found := p.refMap[expr.GetId()]; found {
- return p.planCheckedIdent(expr.GetId(), identRef)
+ if identRef, found := p.refMap[expr.ID()]; found {
+ return p.planCheckedIdent(expr.ID(), identRef)
}
// Create the possible attribute list for the unresolved reference.
- ident := expr.GetIdentExpr()
+ ident := expr.AsIdent()
return &evalAttr{
adapter: p.adapter,
- attr: p.attrFactory.MaybeAttribute(expr.GetId(), ident.Name),
+ attr: p.attrFactory.MaybeAttribute(expr.ID(), ident),
}, nil
}
-func (p *planner) planCheckedIdent(id int64, identRef *exprpb.Reference) (Interpretable, error) {
+func (p *planner) planCheckedIdent(id int64, identRef *ast.ReferenceInfo) (Interpretable, error) {
// Plan a constant reference if this is the case for this simple identifier.
- if identRef.GetValue() != nil {
- return p.Plan(&exprpb.Expr{Id: id,
- ExprKind: &exprpb.Expr_ConstExpr{
- ConstExpr: identRef.GetValue(),
- }})
+ if identRef.Value != nil {
+ return NewConstValue(id, identRef.Value), nil
}
// Check to see whether the type map indicates this is a type name. All types should be
// registered with the provider.
cType := p.typeMap[id]
- if cType.GetType() != nil {
- cVal, found := p.provider.FindIdent(identRef.GetName())
+ if cType.Kind() == types.TypeKind {
+ cVal, found := p.provider.FindIdent(identRef.Name)
if !found {
- return nil, fmt.Errorf("reference to undefined type: %s", identRef.GetName())
+ return nil, fmt.Errorf("reference to undefined type: %s", identRef.Name)
}
return NewConstValue(id, cVal), nil
}
@@ -167,7 +143,7 @@ func (p *planner) planCheckedIdent(id int64, identRef *exprpb.Reference) (Interp
// Otherwise, return the attribute for the resolved identifier name.
return &evalAttr{
adapter: p.adapter,
- attr: p.attrFactory.AbsoluteAttribute(id, identRef.GetName()),
+ attr: p.attrFactory.AbsoluteAttribute(id, identRef.Name),
}, nil
}
@@ -176,20 +152,20 @@ func (p *planner) planCheckedIdent(id int64, identRef *exprpb.Reference) (Interp
// a) selects a field from a map or proto.
// b) creates a field presence test for a select within a has() macro.
// c) resolves the select expression to a namespaced identifier.
-func (p *planner) planSelect(expr *exprpb.Expr) (Interpretable, error) {
+func (p *planner) planSelect(expr ast.Expr) (Interpretable, error) {
// If the Select id appears in the reference map from the CheckedExpr proto then it is either
// a namespaced identifier or enum value.
- if identRef, found := p.refMap[expr.GetId()]; found {
- return p.planCheckedIdent(expr.GetId(), identRef)
+ if identRef, found := p.refMap[expr.ID()]; found {
+ return p.planCheckedIdent(expr.ID(), identRef)
}
- sel := expr.GetSelectExpr()
+ sel := expr.AsSelect()
// Plan the operand evaluation.
- op, err := p.Plan(sel.GetOperand())
+ op, err := p.Plan(sel.Operand())
if err != nil {
return nil, err
}
- opType := p.typeMap[sel.GetOperand().GetId()]
+ opType := p.typeMap[sel.Operand().ID()]
// If the Select was marked TestOnly, this is a presence test.
//
@@ -213,22 +189,18 @@ func (p *planner) planSelect(expr *exprpb.Expr) (Interpretable, error) {
}
// Build a qualifier for the attribute.
- qual, err := p.attrFactory.NewQualifier(opType, expr.GetId(), sel.GetField(), false)
+ qual, err := p.attrFactory.NewQualifier(opType, expr.ID(), sel.FieldName(), false)
if err != nil {
return nil, err
}
-
- // Return the test only eval expression.
- if sel.GetTestOnly() {
- return &evalTestOnly{
- id: expr.GetId(),
- field: types.String(sel.GetField()),
- attr: attr,
- qual: qual,
- }, nil
+ // Modify the attribute to be test-only.
+ if sel.IsTestOnly() {
+ attr = &evalTestOnly{
+ id: expr.ID(),
+ InterpretableAttribute: attr,
+ }
}
-
- // Otherwise, append the qualifier on the attribute.
+ // Append the qualifier on the attribute.
_, err = attr.AddQualifier(qual)
return attr, err
}
@@ -236,10 +208,10 @@ func (p *planner) planSelect(expr *exprpb.Expr) (Interpretable, error) {
// planCall creates a callable Interpretable while specializing for common functions and invocation
// patterns. Specifically, conditional operators &&, ||, ?:, and (in)equality functions result in
// optimized Interpretable values.
-func (p *planner) planCall(expr *exprpb.Expr) (Interpretable, error) {
- call := expr.GetCallExpr()
+func (p *planner) planCall(expr ast.Expr) (Interpretable, error) {
+ call := expr.AsCall()
target, fnName, oName := p.resolveFunction(expr)
- argCount := len(call.GetArgs())
+ argCount := len(call.Args())
var offset int
if target != nil {
argCount++
@@ -254,7 +226,7 @@ func (p *planner) planCall(expr *exprpb.Expr) (Interpretable, error) {
}
args[0] = arg
}
- for i, argExpr := range call.GetArgs() {
+ for i, argExpr := range call.Args() {
arg, err := p.Plan(argExpr)
if err != nil {
return nil, err
@@ -313,7 +285,7 @@ func (p *planner) planCall(expr *exprpb.Expr) (Interpretable, error) {
}
// planCallZero generates a zero-arity callable Interpretable.
-func (p *planner) planCallZero(expr *exprpb.Expr,
+func (p *planner) planCallZero(expr ast.Expr,
function string,
overload string,
impl *functions.Overload) (Interpretable, error) {
@@ -321,7 +293,7 @@ func (p *planner) planCallZero(expr *exprpb.Expr,
return nil, fmt.Errorf("no such overload: %s()", function)
}
return &evalZeroArity{
- id: expr.GetId(),
+ id: expr.ID(),
function: function,
overload: overload,
impl: impl.Function,
@@ -329,7 +301,7 @@ func (p *planner) planCallZero(expr *exprpb.Expr,
}
// planCallUnary generates a unary callable Interpretable.
-func (p *planner) planCallUnary(expr *exprpb.Expr,
+func (p *planner) planCallUnary(expr ast.Expr,
function string,
overload string,
impl *functions.Overload,
@@ -346,7 +318,7 @@ func (p *planner) planCallUnary(expr *exprpb.Expr,
nonStrict = impl.NonStrict
}
return &evalUnary{
- id: expr.GetId(),
+ id: expr.ID(),
function: function,
overload: overload,
arg: args[0],
@@ -357,7 +329,7 @@ func (p *planner) planCallUnary(expr *exprpb.Expr,
}
// planCallBinary generates a binary callable Interpretable.
-func (p *planner) planCallBinary(expr *exprpb.Expr,
+func (p *planner) planCallBinary(expr ast.Expr,
function string,
overload string,
impl *functions.Overload,
@@ -374,7 +346,7 @@ func (p *planner) planCallBinary(expr *exprpb.Expr,
nonStrict = impl.NonStrict
}
return &evalBinary{
- id: expr.GetId(),
+ id: expr.ID(),
function: function,
overload: overload,
lhs: args[0],
@@ -386,7 +358,7 @@ func (p *planner) planCallBinary(expr *exprpb.Expr,
}
// planCallVarArgs generates a variable argument callable Interpretable.
-func (p *planner) planCallVarArgs(expr *exprpb.Expr,
+func (p *planner) planCallVarArgs(expr ast.Expr,
function string,
overload string,
impl *functions.Overload,
@@ -403,7 +375,7 @@ func (p *planner) planCallVarArgs(expr *exprpb.Expr,
nonStrict = impl.NonStrict
}
return &evalVarArgs{
- id: expr.GetId(),
+ id: expr.ID(),
function: function,
overload: overload,
args: args,
@@ -414,43 +386,41 @@ func (p *planner) planCallVarArgs(expr *exprpb.Expr,
}
// planCallEqual generates an equals (==) Interpretable.
-func (p *planner) planCallEqual(expr *exprpb.Expr, args []Interpretable) (Interpretable, error) {
+func (p *planner) planCallEqual(expr ast.Expr, args []Interpretable) (Interpretable, error) {
return &evalEq{
- id: expr.GetId(),
+ id: expr.ID(),
lhs: args[0],
rhs: args[1],
}, nil
}
// planCallNotEqual generates a not equals (!=) Interpretable.
-func (p *planner) planCallNotEqual(expr *exprpb.Expr, args []Interpretable) (Interpretable, error) {
+func (p *planner) planCallNotEqual(expr ast.Expr, args []Interpretable) (Interpretable, error) {
return &evalNe{
- id: expr.GetId(),
+ id: expr.ID(),
lhs: args[0],
rhs: args[1],
}, nil
}
// planCallLogicalAnd generates a logical and (&&) Interpretable.
-func (p *planner) planCallLogicalAnd(expr *exprpb.Expr, args []Interpretable) (Interpretable, error) {
+func (p *planner) planCallLogicalAnd(expr ast.Expr, args []Interpretable) (Interpretable, error) {
return &evalAnd{
- id: expr.GetId(),
- lhs: args[0],
- rhs: args[1],
+ id: expr.ID(),
+ terms: args,
}, nil
}
// planCallLogicalOr generates a logical or (||) Interpretable.
-func (p *planner) planCallLogicalOr(expr *exprpb.Expr, args []Interpretable) (Interpretable, error) {
+func (p *planner) planCallLogicalOr(expr ast.Expr, args []Interpretable) (Interpretable, error) {
return &evalOr{
- id: expr.GetId(),
- lhs: args[0],
- rhs: args[1],
+ id: expr.ID(),
+ terms: args,
}, nil
}
// planCallConditional generates a conditional / ternary (c ? t : f) Interpretable.
-func (p *planner) planCallConditional(expr *exprpb.Expr, args []Interpretable) (Interpretable, error) {
+func (p *planner) planCallConditional(expr ast.Expr, args []Interpretable) (Interpretable, error) {
cond := args[0]
t := args[1]
var tAttr Attribute
@@ -472,16 +442,16 @@ func (p *planner) planCallConditional(expr *exprpb.Expr, args []Interpretable) (
return &evalAttr{
adapter: p.adapter,
- attr: p.attrFactory.ConditionalAttribute(expr.GetId(), cond, tAttr, fAttr),
+ attr: p.attrFactory.ConditionalAttribute(expr.ID(), cond, tAttr, fAttr),
}, nil
}
// planCallIndex either extends an attribute with the argument to the index operation, or creates
// a relative attribute based on the return of a function call or operation.
-func (p *planner) planCallIndex(expr *exprpb.Expr, args []Interpretable, optional bool) (Interpretable, error) {
+func (p *planner) planCallIndex(expr ast.Expr, args []Interpretable, optional bool) (Interpretable, error) {
op := args[0]
ind := args[1]
- opType := p.typeMap[expr.GetCallExpr().GetTarget().GetId()]
+ opType := p.typeMap[op.ID()]
// Establish the attribute reference.
var err error
@@ -497,11 +467,11 @@ func (p *planner) planCallIndex(expr *exprpb.Expr, args []Interpretable, optiona
var qual Qualifier
switch ind := ind.(type) {
case InterpretableConst:
- qual, err = p.attrFactory.NewQualifier(opType, expr.GetId(), ind.Value(), optional)
+ qual, err = p.attrFactory.NewQualifier(opType, expr.ID(), ind.Value(), optional)
case InterpretableAttribute:
- qual, err = p.attrFactory.NewQualifier(opType, expr.GetId(), ind, optional)
+ qual, err = p.attrFactory.NewQualifier(opType, expr.ID(), ind, optional)
default:
- qual, err = p.relativeAttr(expr.GetId(), ind, optional)
+ qual, err = p.relativeAttr(expr.ID(), ind, optional)
}
if err != nil {
return nil, err
@@ -513,10 +483,10 @@ func (p *planner) planCallIndex(expr *exprpb.Expr, args []Interpretable, optiona
}
// planCreateList generates a list construction Interpretable.
-func (p *planner) planCreateList(expr *exprpb.Expr) (Interpretable, error) {
- list := expr.GetListExpr()
- optionalIndices := list.GetOptionalIndices()
- elements := list.GetElements()
+func (p *planner) planCreateList(expr ast.Expr) (Interpretable, error) {
+ list := expr.AsList()
+ optionalIndices := list.OptionalIndices()
+ elements := list.Elements()
optionals := make([]bool, len(elements))
for _, index := range optionalIndices {
if index < 0 || index >= int32(len(elements)) {
@@ -533,107 +503,111 @@ func (p *planner) planCreateList(expr *exprpb.Expr) (Interpretable, error) {
elems[i] = elemVal
}
return &evalList{
- id: expr.GetId(),
+ id: expr.ID(),
elems: elems,
optionals: optionals,
- hasOptionals: len(optionals) != 0,
+ hasOptionals: len(optionalIndices) != 0,
adapter: p.adapter,
}, nil
}
// planCreateStruct generates a map or object construction Interpretable.
-func (p *planner) planCreateStruct(expr *exprpb.Expr) (Interpretable, error) {
- str := expr.GetStructExpr()
- if len(str.MessageName) != 0 {
- return p.planCreateObj(expr)
- }
- entries := str.GetEntries()
+func (p *planner) planCreateMap(expr ast.Expr) (Interpretable, error) {
+ m := expr.AsMap()
+ entries := m.Entries()
optionals := make([]bool, len(entries))
keys := make([]Interpretable, len(entries))
vals := make([]Interpretable, len(entries))
- for i, entry := range entries {
- keyVal, err := p.Plan(entry.GetMapKey())
+ hasOptionals := false
+ for i, e := range entries {
+ entry := e.AsMapEntry()
+ keyVal, err := p.Plan(entry.Key())
if err != nil {
return nil, err
}
keys[i] = keyVal
- valVal, err := p.Plan(entry.GetValue())
+ valVal, err := p.Plan(entry.Value())
if err != nil {
return nil, err
}
vals[i] = valVal
- optionals[i] = entry.GetOptionalEntry()
+ optionals[i] = entry.IsOptional()
+ hasOptionals = hasOptionals || entry.IsOptional()
}
return &evalMap{
- id: expr.GetId(),
+ id: expr.ID(),
keys: keys,
vals: vals,
optionals: optionals,
- hasOptionals: len(optionals) != 0,
+ hasOptionals: hasOptionals,
adapter: p.adapter,
}, nil
}
// planCreateObj generates an object construction Interpretable.
-func (p *planner) planCreateObj(expr *exprpb.Expr) (Interpretable, error) {
- obj := expr.GetStructExpr()
- typeName, defined := p.resolveTypeName(obj.GetMessageName())
+func (p *planner) planCreateStruct(expr ast.Expr) (Interpretable, error) {
+ obj := expr.AsStruct()
+ typeName, defined := p.resolveTypeName(obj.TypeName())
if !defined {
- return nil, fmt.Errorf("unknown type: %s", obj.GetMessageName())
- }
- entries := obj.GetEntries()
- optionals := make([]bool, len(entries))
- fields := make([]string, len(entries))
- vals := make([]Interpretable, len(entries))
- for i, entry := range entries {
- fields[i] = entry.GetFieldKey()
- val, err := p.Plan(entry.GetValue())
+ return nil, fmt.Errorf("unknown type: %s", obj.TypeName())
+ }
+ objFields := obj.Fields()
+ optionals := make([]bool, len(objFields))
+ fields := make([]string, len(objFields))
+ vals := make([]Interpretable, len(objFields))
+ hasOptionals := false
+ for i, f := range objFields {
+ field := f.AsStructField()
+ fields[i] = field.Name()
+ val, err := p.Plan(field.Value())
if err != nil {
return nil, err
}
vals[i] = val
- optionals[i] = entry.GetOptionalEntry()
+ optionals[i] = field.IsOptional()
+ hasOptionals = hasOptionals || field.IsOptional()
}
return &evalObj{
- id: expr.GetId(),
+ id: expr.ID(),
typeName: typeName,
fields: fields,
vals: vals,
optionals: optionals,
- hasOptionals: len(optionals) != 0,
+ hasOptionals: hasOptionals,
provider: p.provider,
}, nil
}
// planComprehension generates an Interpretable fold operation.
-func (p *planner) planComprehension(expr *exprpb.Expr) (Interpretable, error) {
- fold := expr.GetComprehensionExpr()
- accu, err := p.Plan(fold.GetAccuInit())
+func (p *planner) planComprehension(expr ast.Expr) (Interpretable, error) {
+ fold := expr.AsComprehension()
+ accu, err := p.Plan(fold.AccuInit())
if err != nil {
return nil, err
}
- iterRange, err := p.Plan(fold.GetIterRange())
+ iterRange, err := p.Plan(fold.IterRange())
if err != nil {
return nil, err
}
- cond, err := p.Plan(fold.GetLoopCondition())
+ cond, err := p.Plan(fold.LoopCondition())
if err != nil {
return nil, err
}
- step, err := p.Plan(fold.GetLoopStep())
+ step, err := p.Plan(fold.LoopStep())
if err != nil {
return nil, err
}
- result, err := p.Plan(fold.GetResult())
+ result, err := p.Plan(fold.Result())
if err != nil {
return nil, err
}
return &evalFold{
- id: expr.GetId(),
- accuVar: fold.AccuVar,
+ id: expr.ID(),
+ accuVar: fold.AccuVar(),
accu: accu,
- iterVar: fold.IterVar,
+ iterVar: fold.IterVar(),
+ iterVar2: fold.IterVar2(),
iterRange: iterRange,
cond: cond,
step: step,
@@ -643,44 +617,15 @@ func (p *planner) planComprehension(expr *exprpb.Expr) (Interpretable, error) {
}
// planConst generates a constant valued Interpretable.
-func (p *planner) planConst(expr *exprpb.Expr) (Interpretable, error) {
- val, err := p.constValue(expr.GetConstExpr())
- if err != nil {
- return nil, err
- }
- return NewConstValue(expr.GetId(), val), nil
-}
-
-// constValue converts a proto Constant value to a ref.Val.
-func (p *planner) constValue(c *exprpb.Constant) (ref.Val, error) {
- switch c.GetConstantKind().(type) {
- case *exprpb.Constant_BoolValue:
- return p.adapter.NativeToValue(c.GetBoolValue()), nil
- case *exprpb.Constant_BytesValue:
- return p.adapter.NativeToValue(c.GetBytesValue()), nil
- case *exprpb.Constant_DoubleValue:
- return p.adapter.NativeToValue(c.GetDoubleValue()), nil
- case *exprpb.Constant_DurationValue:
- return p.adapter.NativeToValue(c.GetDurationValue().AsDuration()), nil
- case *exprpb.Constant_Int64Value:
- return p.adapter.NativeToValue(c.GetInt64Value()), nil
- case *exprpb.Constant_NullValue:
- return p.adapter.NativeToValue(c.GetNullValue()), nil
- case *exprpb.Constant_StringValue:
- return p.adapter.NativeToValue(c.GetStringValue()), nil
- case *exprpb.Constant_TimestampValue:
- return p.adapter.NativeToValue(c.GetTimestampValue().AsTime()), nil
- case *exprpb.Constant_Uint64Value:
- return p.adapter.NativeToValue(c.GetUint64Value()), nil
- }
- return nil, fmt.Errorf("unknown constant type: %v", c)
+func (p *planner) planConst(expr ast.Expr) (Interpretable, error) {
+ return NewConstValue(expr.ID(), expr.AsLiteral()), nil
}
// resolveTypeName takes a qualified string constructed at parse time, applies the proto
// namespace resolution rules to it in a scan over possible matching types in the TypeProvider.
func (p *planner) resolveTypeName(typeName string) (string, bool) {
for _, qualifiedTypeName := range p.container.ResolveCandidateNames(typeName) {
- if _, found := p.provider.FindType(qualifiedTypeName); found {
+ if _, found := p.provider.FindStructType(qualifiedTypeName); found {
return qualifiedTypeName, true
}
}
@@ -695,20 +640,23 @@ func (p *planner) resolveTypeName(typeName string) (string, bool) {
// - The target expression may only consist of ident and select expressions.
// - The function is declared in the environment using its fully-qualified name.
// - The fully-qualified function name matches the string serialized target value.
-func (p *planner) resolveFunction(expr *exprpb.Expr) (*exprpb.Expr, string, string) {
+func (p *planner) resolveFunction(expr ast.Expr) (ast.Expr, string, string) {
// Note: similar logic exists within the `checker/checker.go`. If making changes here
// please consider the impact on checker.go and consolidate implementations or mirror code
// as appropriate.
- call := expr.GetCallExpr()
- target := call.GetTarget()
- fnName := call.GetFunction()
+ call := expr.AsCall()
+ var target ast.Expr = nil
+ if call.IsMemberFunction() {
+ target = call.Target()
+ }
+ fnName := call.FunctionName()
// Checked expressions always have a reference map entry, and _should_ have the fully qualified
// function name as the fnName value.
- oRef, hasOverload := p.refMap[expr.GetId()]
+ oRef, hasOverload := p.refMap[expr.ID()]
if hasOverload {
- if len(oRef.GetOverloadId()) == 1 {
- return target, fnName, oRef.GetOverloadId()[0]
+ if len(oRef.OverloadIDs) == 1 {
+ return target, fnName, oRef.OverloadIDs[0]
}
// Note, this namespaced function name will not appear as a fully qualified name in ASTs
// built and stored before cel-go v0.5.0; however, this functionality did not work at all
@@ -779,16 +727,30 @@ func (p *planner) relativeAttr(id int64, eval Interpretable, opt bool) (Interpre
// toQualifiedName converts an expression AST into a qualified name if possible, with a boolean
// 'found' value that indicates if the conversion is successful.
-func (p *planner) toQualifiedName(operand *exprpb.Expr) (string, bool) {
+func (p *planner) toQualifiedName(operand ast.Expr) (string, bool) {
// If the checker identified the expression as an attribute by the type-checker, then it can't
// possibly be part of qualified name in a namespace.
- _, isAttr := p.refMap[operand.GetId()]
+ _, isAttr := p.refMap[operand.ID()]
if isAttr {
return "", false
}
// Since functions cannot be both namespaced and receiver functions, if the operand is not an
// qualified variable name, return the (possibly) qualified name given the expressions.
- return containers.ToQualifiedName(operand)
+ switch operand.Kind() {
+ case ast.IdentKind:
+ id := operand.AsIdent()
+ return id, true
+ case ast.SelectKind:
+ sel := operand.AsSelect()
+ // Test only expressions are not valid as qualified names.
+ if sel.IsTestOnly() {
+ return "", false
+ }
+ if qual, found := p.toQualifiedName(sel.Operand()); found {
+ return qual + "." + sel.FieldName(), true
+ }
+ }
+ return "", false
}
func stripLeadingDot(name string) string {
diff --git a/vendor/github.com/google/cel-go/interpreter/prune.go b/vendor/github.com/google/cel-go/interpreter/prune.go
index 85b3b06..410d80d 100644
--- a/vendor/github.com/google/cel-go/interpreter/prune.go
+++ b/vendor/github.com/google/cel-go/interpreter/prune.go
@@ -15,18 +15,18 @@
package interpreter
import (
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/operators"
+ "github.com/google/cel-go/common/overloads"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"github.com/google/cel-go/common/types/traits"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
- structpb "google.golang.org/protobuf/types/known/structpb"
)
type astPruner struct {
- expr *exprpb.Expr
- macroCalls map[int64]*exprpb.Expr
+ ast.ExprFactory
+ expr ast.Expr
+ macroCalls map[int64]ast.Expr
state EvalState
nextExprID int64
}
@@ -66,73 +66,44 @@ type astPruner struct {
// compiled and constant folded expressions, but is not willing to constant
// fold(and thus cache results of) some external calls, then they can prepare
// the overloads accordingly.
-func PruneAst(expr *exprpb.Expr, macroCalls map[int64]*exprpb.Expr, state EvalState) *exprpb.ParsedExpr {
+func PruneAst(expr ast.Expr, macroCalls map[int64]ast.Expr, state EvalState) *ast.AST {
pruneState := NewEvalState()
- maxID := int64(1)
for _, id := range state.IDs() {
v, _ := state.Value(id)
pruneState.SetValue(id, v)
- if id > maxID {
- maxID = id + 1
- }
}
pruner := &astPruner{
- expr: expr,
- macroCalls: macroCalls,
- state: pruneState,
- nextExprID: maxID}
+ ExprFactory: ast.NewExprFactory(),
+ expr: expr,
+ macroCalls: macroCalls,
+ state: pruneState,
+ nextExprID: getMaxID(expr)}
newExpr, _ := pruner.maybePrune(expr)
- return &exprpb.ParsedExpr{
- Expr: newExpr,
- SourceInfo: &exprpb.SourceInfo{MacroCalls: pruner.macroCalls},
+ newInfo := ast.NewSourceInfo(nil)
+ for id, call := range pruner.macroCalls {
+ newInfo.SetMacroCall(id, call)
}
+ return ast.NewAST(newExpr, newInfo)
}
-func (p *astPruner) createLiteral(id int64, val *exprpb.Constant) *exprpb.Expr {
- return &exprpb.Expr{
- Id: id,
- ExprKind: &exprpb.Expr_ConstExpr{
- ConstExpr: val,
- },
- }
-}
-
-func (p *astPruner) maybeCreateLiteral(id int64, val ref.Val) (*exprpb.Expr, bool) {
- switch val.Type() {
- case types.BoolType:
- p.state.SetValue(id, val)
- return p.createLiteral(id,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_BoolValue{BoolValue: val.Value().(bool)}}), true
- case types.IntType:
- p.state.SetValue(id, val)
- return p.createLiteral(id,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_Int64Value{Int64Value: val.Value().(int64)}}), true
- case types.UintType:
- p.state.SetValue(id, val)
- return p.createLiteral(id,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_Uint64Value{Uint64Value: val.Value().(uint64)}}), true
- case types.StringType:
- p.state.SetValue(id, val)
- return p.createLiteral(id,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_StringValue{StringValue: val.Value().(string)}}), true
- case types.DoubleType:
+func (p *astPruner) maybeCreateLiteral(id int64, val ref.Val) (ast.Expr, bool) {
+ switch v := val.(type) {
+ case types.Bool, types.Bytes, types.Double, types.Int, types.Null, types.String, types.Uint:
p.state.SetValue(id, val)
- return p.createLiteral(id,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_DoubleValue{DoubleValue: val.Value().(float64)}}), true
- case types.BytesType:
+ return p.NewLiteral(id, val), true
+ case types.Duration:
p.state.SetValue(id, val)
- return p.createLiteral(id,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_BytesValue{BytesValue: val.Value().([]byte)}}), true
- case types.NullType:
- p.state.SetValue(id, val)
- return p.createLiteral(id,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_NullValue{NullValue: val.Value().(structpb.NullValue)}}), true
+ durationString := v.ConvertToType(types.StringType).(types.String)
+ return p.NewCall(id, overloads.TypeConvertDuration, p.NewLiteral(p.nextID(), durationString)), true
+ case types.Timestamp:
+ timestampString := v.ConvertToType(types.StringType).(types.String)
+ return p.NewCall(id, overloads.TypeConvertTimestamp, p.NewLiteral(p.nextID(), timestampString)), true
}
// Attempt to build a list literal.
if list, isList := val.(traits.Lister); isList {
sz := list.Size().(types.Int)
- elemExprs := make([]*exprpb.Expr, sz)
+ elemExprs := make([]ast.Expr, sz)
for i := types.Int(0); i < sz; i++ {
elem := list.Get(i)
if types.IsUnknownOrError(elem) {
@@ -145,20 +116,13 @@ func (p *astPruner) maybeCreateLiteral(id int64, val ref.Val) (*exprpb.Expr, boo
elemExprs[i] = elemExpr
}
p.state.SetValue(id, val)
- return &exprpb.Expr{
- Id: id,
- ExprKind: &exprpb.Expr_ListExpr{
- ListExpr: &exprpb.Expr_CreateList{
- Elements: elemExprs,
- },
- },
- }, true
+ return p.NewList(id, elemExprs, []int32{}), true
}
// Create a map literal if possible.
if mp, isMap := val.(traits.Mapper); isMap {
it := mp.Iterator()
- entries := make([]*exprpb.Expr_CreateStruct_Entry, mp.Size().(types.Int))
+ entries := make([]ast.EntryExpr, mp.Size().(types.Int))
i := 0
for it.HasNext() != types.False {
key := it.Next()
@@ -174,25 +138,12 @@ func (p *astPruner) maybeCreateLiteral(id int64, val ref.Val) (*exprpb.Expr, boo
if !ok {
return nil, false
}
- entry := &exprpb.Expr_CreateStruct_Entry{
- Id: p.nextID(),
- KeyKind: &exprpb.Expr_CreateStruct_Entry_MapKey{
- MapKey: keyExpr,
- },
- Value: valExpr,
- }
+ entry := p.NewMapEntry(p.nextID(), keyExpr, valExpr, false)
entries[i] = entry
i++
}
p.state.SetValue(id, val)
- return &exprpb.Expr{
- Id: id,
- ExprKind: &exprpb.Expr_StructExpr{
- StructExpr: &exprpb.Expr_CreateStruct{
- Entries: entries,
- },
- },
- }, true
+ return p.NewMap(id, entries), true
}
// TODO(issues/377) To construct message literals, the type provider will need to support
@@ -200,238 +151,286 @@ func (p *astPruner) maybeCreateLiteral(id int64, val ref.Val) (*exprpb.Expr, boo
return nil, false
}
-func (p *astPruner) maybePruneIn(node *exprpb.Expr) (*exprpb.Expr, bool) {
- if !p.existsWithUnknownValue(node.GetId()) {
- return nil, false
+func (p *astPruner) maybePruneOptional(elem ast.Expr) (ast.Expr, bool) {
+ elemVal, found := p.value(elem.ID())
+ if found && elemVal.Type() == types.OptionalType {
+ opt := elemVal.(*types.Optional)
+ if !opt.HasValue() {
+ return nil, true
+ }
+ if newElem, pruned := p.maybeCreateLiteral(elem.ID(), opt.GetValue()); pruned {
+ return newElem, true
+ }
}
- call := node.GetCallExpr()
- val, valueExists := p.value(call.GetArgs()[1].GetId())
- if !valueExists {
+ return elem, false
+}
+
+func (p *astPruner) maybePruneIn(node ast.Expr) (ast.Expr, bool) {
+ // elem in list
+ call := node.AsCall()
+ val, exists := p.maybeValue(call.Args()[1].ID())
+ if !exists {
return nil, false
}
if sz, ok := val.(traits.Sizer); ok && sz.Size() == types.IntZero {
- return p.maybeCreateLiteral(node.GetId(), types.False)
+ return p.maybeCreateLiteral(node.ID(), types.False)
}
return nil, false
}
-func (p *astPruner) maybePruneLogicalNot(node *exprpb.Expr) (*exprpb.Expr, bool) {
- if !p.existsWithUnknownValue(node.GetId()) {
- return nil, false
- }
- call := node.GetCallExpr()
- arg := call.GetArgs()[0]
- v, exists := p.value(arg.GetId())
+func (p *astPruner) maybePruneLogicalNot(node ast.Expr) (ast.Expr, bool) {
+ call := node.AsCall()
+ arg := call.Args()[0]
+ val, exists := p.maybeValue(arg.ID())
if !exists {
return nil, false
}
- if b, ok := v.(types.Bool); ok {
- return p.maybeCreateLiteral(node.GetId(), !b)
+ if b, ok := val.(types.Bool); ok {
+ return p.maybeCreateLiteral(node.ID(), !b)
}
return nil, false
}
-func (p *astPruner) maybePruneAndOr(node *exprpb.Expr) (*exprpb.Expr, bool) {
- if !p.existsWithUnknownValue(node.GetId()) {
- return nil, false
+func (p *astPruner) maybePruneOr(node ast.Expr) (ast.Expr, bool) {
+ call := node.AsCall()
+ // We know result is unknown, so we have at least one unknown arg
+ // and if one side is a known value, we know we can ignore it.
+ if v, exists := p.maybeValue(call.Args()[0].ID()); exists {
+ if v == types.True {
+ return p.maybeCreateLiteral(node.ID(), types.True)
+ }
+ return call.Args()[1], true
}
+ if v, exists := p.maybeValue(call.Args()[1].ID()); exists {
+ if v == types.True {
+ return p.maybeCreateLiteral(node.ID(), types.True)
+ }
+ return call.Args()[0], true
+ }
+ return nil, false
+}
- call := node.GetCallExpr()
+func (p *astPruner) maybePruneAnd(node ast.Expr) (ast.Expr, bool) {
+ call := node.AsCall()
// We know result is unknown, so we have at least one unknown arg
// and if one side is a known value, we know we can ignore it.
- if p.existsWithKnownValue(call.Args[0].GetId()) {
- return call.Args[1], true
+ if v, exists := p.maybeValue(call.Args()[0].ID()); exists {
+ if v == types.False {
+ return p.maybeCreateLiteral(node.ID(), types.False)
+ }
+ return call.Args()[1], true
}
- if p.existsWithKnownValue(call.Args[1].GetId()) {
- return call.Args[0], true
+ if v, exists := p.maybeValue(call.Args()[1].ID()); exists {
+ if v == types.False {
+ return p.maybeCreateLiteral(node.ID(), types.False)
+ }
+ return call.Args()[0], true
}
return nil, false
}
-func (p *astPruner) maybePruneConditional(node *exprpb.Expr) (*exprpb.Expr, bool) {
- if !p.existsWithUnknownValue(node.GetId()) {
+func (p *astPruner) maybePruneConditional(node ast.Expr) (ast.Expr, bool) {
+ call := node.AsCall()
+ cond, exists := p.maybeValue(call.Args()[0].ID())
+ if !exists {
return nil, false
}
+ if cond.Value().(bool) {
+ return call.Args()[1], true
+ }
+ return call.Args()[2], true
+}
- call := node.GetCallExpr()
- condVal, condValueExists := p.value(call.Args[0].GetId())
- if !condValueExists || types.IsUnknownOrError(condVal) {
+func (p *astPruner) maybePruneFunction(node ast.Expr) (ast.Expr, bool) {
+ if _, exists := p.value(node.ID()); !exists {
return nil, false
}
-
- if condVal.Value().(bool) {
- return call.Args[1], true
+ call := node.AsCall()
+ if call.FunctionName() == operators.LogicalOr {
+ return p.maybePruneOr(node)
}
- return call.Args[2], true
-}
-
-func (p *astPruner) maybePruneFunction(node *exprpb.Expr) (*exprpb.Expr, bool) {
- call := node.GetCallExpr()
- if call.Function == operators.LogicalOr || call.Function == operators.LogicalAnd {
- return p.maybePruneAndOr(node)
+ if call.FunctionName() == operators.LogicalAnd {
+ return p.maybePruneAnd(node)
}
- if call.Function == operators.Conditional {
+ if call.FunctionName() == operators.Conditional {
return p.maybePruneConditional(node)
}
- if call.Function == operators.In {
+ if call.FunctionName() == operators.In {
return p.maybePruneIn(node)
}
- if call.Function == operators.LogicalNot {
+ if call.FunctionName() == operators.LogicalNot {
return p.maybePruneLogicalNot(node)
}
return nil, false
}
-func (p *astPruner) maybePrune(node *exprpb.Expr) (*exprpb.Expr, bool) {
- out, pruned := p.prune(node)
- if pruned {
- delete(p.macroCalls, node.GetId())
- }
- return out, pruned
+func (p *astPruner) maybePrune(node ast.Expr) (ast.Expr, bool) {
+ return p.prune(node)
}
-func (p *astPruner) prune(node *exprpb.Expr) (*exprpb.Expr, bool) {
+func (p *astPruner) prune(node ast.Expr) (ast.Expr, bool) {
if node == nil {
return node, false
}
- val, valueExists := p.value(node.GetId())
- if valueExists && !types.IsUnknownOrError(val) {
- if newNode, ok := p.maybeCreateLiteral(node.GetId(), val); ok {
+ val, valueExists := p.maybeValue(node.ID())
+ if valueExists {
+ if newNode, ok := p.maybeCreateLiteral(node.ID(), val); ok {
+ delete(p.macroCalls, node.ID())
return newNode, true
}
}
+ if macro, found := p.macroCalls[node.ID()]; found {
+ // Ensure that intermediate values for the comprehension are cleared during pruning
+ if node.Kind() == ast.ComprehensionKind {
+ compre := node.AsComprehension()
+ visit(macro, clearIterVarVisitor(compre.IterVar(), p.state))
+ }
+ // prune the expression in terms of the macro call instead of the expanded form.
+ if newMacro, pruned := p.prune(macro); pruned {
+ p.macroCalls[node.ID()] = newMacro
+ }
+ }
// We have either an unknown/error value, or something we don't want to
// transform, or expression was not evaluated. If possible, drill down
// more.
-
- switch node.GetExprKind().(type) {
- case *exprpb.Expr_SelectExpr:
- if operand, pruned := p.maybePrune(node.GetSelectExpr().GetOperand()); pruned {
- return &exprpb.Expr{
- Id: node.GetId(),
- ExprKind: &exprpb.Expr_SelectExpr{
- SelectExpr: &exprpb.Expr_Select{
- Operand: operand,
- Field: node.GetSelectExpr().GetField(),
- TestOnly: node.GetSelectExpr().GetTestOnly(),
- },
- },
- }, true
- }
- case *exprpb.Expr_CallExpr:
- var prunedCall bool
- call := node.GetCallExpr()
- args := call.GetArgs()
- newArgs := make([]*exprpb.Expr, len(args))
- newCall := &exprpb.Expr_Call{
- Function: call.GetFunction(),
- Target: call.GetTarget(),
- Args: newArgs,
+ switch node.Kind() {
+ case ast.SelectKind:
+ sel := node.AsSelect()
+ if operand, isPruned := p.maybePrune(sel.Operand()); isPruned {
+ if sel.IsTestOnly() {
+ return p.NewPresenceTest(node.ID(), operand, sel.FieldName()), true
+ }
+ return p.NewSelect(node.ID(), operand, sel.FieldName()), true
}
- for i, arg := range args {
- newArgs[i] = arg
- if newArg, prunedArg := p.maybePrune(arg); prunedArg {
- prunedCall = true
- newArgs[i] = newArg
+ case ast.CallKind:
+ argsPruned := false
+ call := node.AsCall()
+ args := call.Args()
+ newArgs := make([]ast.Expr, len(args))
+ for i, a := range args {
+ newArgs[i] = a
+ if arg, isPruned := p.maybePrune(a); isPruned {
+ argsPruned = true
+ newArgs[i] = arg
}
}
- if newTarget, prunedTarget := p.maybePrune(call.GetTarget()); prunedTarget {
- prunedCall = true
- newCall.Target = newTarget
+ if !call.IsMemberFunction() {
+ newCall := p.NewCall(node.ID(), call.FunctionName(), newArgs...)
+ if prunedCall, isPruned := p.maybePruneFunction(newCall); isPruned {
+ return prunedCall, true
+ }
+ return newCall, argsPruned
}
- newNode := &exprpb.Expr{
- Id: node.GetId(),
- ExprKind: &exprpb.Expr_CallExpr{
- CallExpr: newCall,
- },
+ newTarget := call.Target()
+ targetPruned := false
+ if prunedTarget, isPruned := p.maybePrune(call.Target()); isPruned {
+ targetPruned = true
+ newTarget = prunedTarget
}
- if newExpr, pruned := p.maybePruneFunction(newNode); pruned {
- newExpr, _ = p.maybePrune(newExpr)
- return newExpr, true
+ newCall := p.NewMemberCall(node.ID(), call.FunctionName(), newTarget, newArgs...)
+ if prunedCall, isPruned := p.maybePruneFunction(newCall); isPruned {
+ return prunedCall, true
}
- if prunedCall {
- return newNode, true
+ return newCall, targetPruned || argsPruned
+ case ast.ListKind:
+ l := node.AsList()
+ elems := l.Elements()
+ optIndices := l.OptionalIndices()
+ optIndexMap := map[int32]bool{}
+ for _, i := range optIndices {
+ optIndexMap[i] = true
}
- case *exprpb.Expr_ListExpr:
- elems := node.GetListExpr().GetElements()
- newElems := make([]*exprpb.Expr, len(elems))
- var prunedList bool
+ newOptIndexMap := make(map[int32]bool, len(optIndexMap))
+ newElems := make([]ast.Expr, 0, len(elems))
+ var listPruned bool
+ prunedIdx := 0
for i, elem := range elems {
- newElems[i] = elem
+ _, isOpt := optIndexMap[int32(i)]
+ if isOpt {
+ newElem, pruned := p.maybePruneOptional(elem)
+ if pruned {
+ listPruned = true
+ if newElem != nil {
+ newElems = append(newElems, newElem)
+ prunedIdx++
+ }
+ continue
+ }
+ newOptIndexMap[int32(prunedIdx)] = true
+ }
if newElem, prunedElem := p.maybePrune(elem); prunedElem {
- newElems[i] = newElem
- prunedList = true
+ newElems = append(newElems, newElem)
+ listPruned = true
+ } else {
+ newElems = append(newElems, elem)
}
+ prunedIdx++
}
- if prunedList {
- return &exprpb.Expr{
- Id: node.GetId(),
- ExprKind: &exprpb.Expr_ListExpr{
- ListExpr: &exprpb.Expr_CreateList{
- Elements: newElems,
- },
- },
- }, true
+ optIndices = make([]int32, len(newOptIndexMap))
+ idx := 0
+ for i := range newOptIndexMap {
+ optIndices[idx] = i
+ idx++
}
- case *exprpb.Expr_StructExpr:
- var prunedStruct bool
- entries := node.GetStructExpr().GetEntries()
- messageType := node.GetStructExpr().GetMessageName()
- newEntries := make([]*exprpb.Expr_CreateStruct_Entry, len(entries))
+ if listPruned {
+ return p.NewList(node.ID(), newElems, optIndices), true
+ }
+ case ast.MapKind:
+ var mapPruned bool
+ m := node.AsMap()
+ entries := m.Entries()
+ newEntries := make([]ast.EntryExpr, len(entries))
for i, entry := range entries {
newEntries[i] = entry
- newKey, prunedKey := p.maybePrune(entry.GetMapKey())
- newValue, prunedValue := p.maybePrune(entry.GetValue())
- if !prunedKey && !prunedValue {
+ e := entry.AsMapEntry()
+ newKey, keyPruned := p.maybePrune(e.Key())
+ newValue, valuePruned := p.maybePrune(e.Value())
+ if !keyPruned && !valuePruned {
continue
}
- prunedStruct = true
- newEntry := &exprpb.Expr_CreateStruct_Entry{
- Value: newValue,
- }
- if messageType != "" {
- newEntry.KeyKind = &exprpb.Expr_CreateStruct_Entry_FieldKey{
- FieldKey: entry.GetFieldKey(),
- }
- } else {
- newEntry.KeyKind = &exprpb.Expr_CreateStruct_Entry_MapKey{
- MapKey: newKey,
- }
- }
+ mapPruned = true
+ newEntry := p.NewMapEntry(entry.ID(), newKey, newValue, e.IsOptional())
newEntries[i] = newEntry
}
- if prunedStruct {
- return &exprpb.Expr{
- Id: node.GetId(),
- ExprKind: &exprpb.Expr_StructExpr{
- StructExpr: &exprpb.Expr_CreateStruct{
- MessageName: messageType,
- Entries: newEntries,
- },
- },
- }, true
+ if mapPruned {
+ return p.NewMap(node.ID(), newEntries), true
+ }
+ case ast.StructKind:
+ var structPruned bool
+ obj := node.AsStruct()
+ fields := obj.Fields()
+ newFields := make([]ast.EntryExpr, len(fields))
+ for i, field := range fields {
+ newFields[i] = field
+ f := field.AsStructField()
+ newValue, prunedValue := p.maybePrune(f.Value())
+ if !prunedValue {
+ continue
+ }
+ structPruned = true
+ newEntry := p.NewStructField(field.ID(), f.Name(), newValue, f.IsOptional())
+ newFields[i] = newEntry
+ }
+ if structPruned {
+ return p.NewStruct(node.ID(), obj.TypeName(), newFields), true
}
- case *exprpb.Expr_ComprehensionExpr:
- compre := node.GetComprehensionExpr()
+ case ast.ComprehensionKind:
+ compre := node.AsComprehension()
// Only the range of the comprehension is pruned since the state tracking only records
// the last iteration of the comprehension and not each step in the evaluation which
// means that the any residuals computed in between might be inaccurate.
- if newRange, pruned := p.maybePrune(compre.GetIterRange()); pruned {
- return &exprpb.Expr{
- Id: node.GetId(),
- ExprKind: &exprpb.Expr_ComprehensionExpr{
- ComprehensionExpr: &exprpb.Expr_Comprehension{
- IterVar: compre.GetIterVar(),
- IterRange: newRange,
- AccuVar: compre.GetAccuVar(),
- AccuInit: compre.GetAccuInit(),
- LoopCondition: compre.GetLoopCondition(),
- LoopStep: compre.GetLoopStep(),
- Result: compre.GetResult(),
- },
- },
- }, true
+ if newRange, pruned := p.maybePrune(compre.IterRange()); pruned {
+ return p.NewComprehension(
+ node.ID(),
+ newRange,
+ compre.IterVar(),
+ compre.AccuVar(),
+ compre.AccuInit(),
+ compre.LoopCondition(),
+ compre.LoopStep(),
+ compre.Result(),
+ ), true
}
}
return node, false
@@ -442,24 +441,103 @@ func (p *astPruner) value(id int64) (ref.Val, bool) {
return val, (found && val != nil)
}
-func (p *astPruner) existsWithUnknownValue(id int64) bool {
- val, valueExists := p.value(id)
- return valueExists && types.IsUnknown(val)
+func (p *astPruner) maybeValue(id int64) (ref.Val, bool) {
+ val, found := p.value(id)
+ if !found || types.IsUnknownOrError(val) {
+ return nil, false
+ }
+ return val, true
}
-func (p *astPruner) existsWithKnownValue(id int64) bool {
- val, valueExists := p.value(id)
- return valueExists && !types.IsUnknown(val)
+func (p *astPruner) nextID() int64 {
+ next := p.nextExprID
+ p.nextExprID++
+ return next
}
-func (p *astPruner) nextID() int64 {
- for {
- _, found := p.state.Value(p.nextExprID)
- if !found {
- next := p.nextExprID
- p.nextExprID++
- return next
+type astVisitor struct {
+ // visitEntry is called on every expr node, including those within a map/struct entry.
+ visitExpr func(expr ast.Expr)
+ // visitEntry is called before entering the key, value of a map/struct entry.
+ visitEntry func(entry ast.EntryExpr)
+}
+
+func getMaxID(expr ast.Expr) int64 {
+ maxID := int64(1)
+ visit(expr, maxIDVisitor(&maxID))
+ return maxID
+}
+
+func clearIterVarVisitor(varName string, state EvalState) astVisitor {
+ return astVisitor{
+ visitExpr: func(e ast.Expr) {
+ if e.Kind() == ast.IdentKind && e.AsIdent() == varName {
+ state.SetValue(e.ID(), nil)
+ }
+ },
+ }
+}
+
+func maxIDVisitor(maxID *int64) astVisitor {
+ return astVisitor{
+ visitExpr: func(e ast.Expr) {
+ if e.ID() >= *maxID {
+ *maxID = e.ID() + 1
+ }
+ },
+ visitEntry: func(e ast.EntryExpr) {
+ if e.ID() >= *maxID {
+ *maxID = e.ID() + 1
+ }
+ },
+ }
+}
+
+func visit(expr ast.Expr, visitor astVisitor) {
+ exprs := []ast.Expr{expr}
+ for len(exprs) != 0 {
+ e := exprs[0]
+ if visitor.visitExpr != nil {
+ visitor.visitExpr(e)
+ }
+ exprs = exprs[1:]
+ switch e.Kind() {
+ case ast.SelectKind:
+ exprs = append(exprs, e.AsSelect().Operand())
+ case ast.CallKind:
+ call := e.AsCall()
+ if call.Target() != nil {
+ exprs = append(exprs, call.Target())
+ }
+ exprs = append(exprs, call.Args()...)
+ case ast.ComprehensionKind:
+ compre := e.AsComprehension()
+ exprs = append(exprs,
+ compre.IterRange(),
+ compre.AccuInit(),
+ compre.LoopCondition(),
+ compre.LoopStep(),
+ compre.Result())
+ case ast.ListKind:
+ list := e.AsList()
+ exprs = append(exprs, list.Elements()...)
+ case ast.MapKind:
+ for _, entry := range e.AsMap().Entries() {
+ e := entry.AsMapEntry()
+ if visitor.visitEntry != nil {
+ visitor.visitEntry(entry)
+ }
+ exprs = append(exprs, e.Key())
+ exprs = append(exprs, e.Value())
+ }
+ case ast.StructKind:
+ for _, entry := range e.AsStruct().Fields() {
+ f := entry.AsStructField()
+ if visitor.visitEntry != nil {
+ visitor.visitEntry(entry)
+ }
+ exprs = append(exprs, f.Value())
+ }
}
- p.nextExprID++
}
}
diff --git a/vendor/github.com/google/cel-go/interpreter/runtimecost.go b/vendor/github.com/google/cel-go/interpreter/runtimecost.go
index e7daf01..b9b307c 100644
--- a/vendor/github.com/google/cel-go/interpreter/runtimecost.go
+++ b/vendor/github.com/google/cel-go/interpreter/runtimecost.go
@@ -53,6 +53,11 @@ func CostObserver(tracker *CostTracker) EvalObserver {
tracker.stack.drop(t.Attr().ID())
tracker.cost += common.SelectAndIdentCost
}
+ if !tracker.presenceTestHasCost {
+ if _, isTestOnly := programStep.(*evalTestOnly); isTestOnly {
+ tracker.cost -= common.SelectAndIdentCost
+ }
+ }
case *evalExhaustiveConditional:
// Ternary has no direct cost. All cost is from the conditional and the true/false branch expressions.
tracker.stack.drop(t.attr.falsy.ID(), t.attr.truthy.ID(), t.attr.expr.ID())
@@ -60,17 +65,23 @@ func CostObserver(tracker *CostTracker) EvalObserver {
// While the field names are identical, the boolean operation eval structs do not share an interface and so
// must be handled individually.
case *evalOr:
- tracker.stack.drop(t.rhs.ID(), t.lhs.ID())
+ for _, term := range t.terms {
+ tracker.stack.drop(term.ID())
+ }
case *evalAnd:
- tracker.stack.drop(t.rhs.ID(), t.lhs.ID())
+ for _, term := range t.terms {
+ tracker.stack.drop(term.ID())
+ }
case *evalExhaustiveOr:
- tracker.stack.drop(t.rhs.ID(), t.lhs.ID())
+ for _, term := range t.terms {
+ tracker.stack.drop(term.ID())
+ }
case *evalExhaustiveAnd:
- tracker.stack.drop(t.rhs.ID(), t.lhs.ID())
+ for _, term := range t.terms {
+ tracker.stack.drop(term.ID())
+ }
case *evalFold:
tracker.stack.drop(t.iterRange.ID())
- case *evalTestOnly:
- tracker.cost += common.SelectAndIdentCost
case Qualifier:
tracker.cost++
case InterpretableCall:
@@ -97,24 +108,86 @@ func CostObserver(tracker *CostTracker) EvalObserver {
return observer
}
-// CostTracker represents the information needed for tacking runtime cost
+// CostTrackerOption configures the behavior of CostTracker objects.
+type CostTrackerOption func(*CostTracker) error
+
+// CostTrackerLimit sets the runtime limit on the evaluation cost during execution and will terminate the expression
+// evaluation if the limit is exceeded.
+func CostTrackerLimit(limit uint64) CostTrackerOption {
+ return func(tracker *CostTracker) error {
+ tracker.Limit = &limit
+ return nil
+ }
+}
+
+// PresenceTestHasCost determines whether presence testing has a cost of one or zero.
+// Defaults to presence test has a cost of one.
+func PresenceTestHasCost(hasCost bool) CostTrackerOption {
+ return func(tracker *CostTracker) error {
+ tracker.presenceTestHasCost = hasCost
+ return nil
+ }
+}
+
+// NewCostTracker creates a new CostTracker with a given estimator and a set of functional CostTrackerOption values.
+func NewCostTracker(estimator ActualCostEstimator, opts ...CostTrackerOption) (*CostTracker, error) {
+ tracker := &CostTracker{
+ Estimator: estimator,
+ overloadTrackers: map[string]FunctionTracker{},
+ presenceTestHasCost: true,
+ }
+ for _, opt := range opts {
+ err := opt(tracker)
+ if err != nil {
+ return nil, err
+ }
+ }
+ return tracker, nil
+}
+
+// OverloadCostTracker binds an overload ID to a runtime FunctionTracker implementation.
+//
+// OverloadCostTracker instances augment or override ActualCostEstimator decisions, allowing for versioned and/or
+// optional cost tracking changes.
+func OverloadCostTracker(overloadID string, fnTracker FunctionTracker) CostTrackerOption {
+ return func(tracker *CostTracker) error {
+ tracker.overloadTrackers[overloadID] = fnTracker
+ return nil
+ }
+}
+
+// FunctionTracker computes the actual cost of evaluating the functions with the given arguments and result.
+type FunctionTracker func(args []ref.Val, result ref.Val) *uint64
+
+// CostTracker represents the information needed for tracking runtime cost.
type CostTracker struct {
- Estimator ActualCostEstimator
- Limit *uint64
+ Estimator ActualCostEstimator
+ overloadTrackers map[string]FunctionTracker
+ Limit *uint64
+ presenceTestHasCost bool
cost uint64
stack refValStack
}
// ActualCost returns the runtime cost
-func (c CostTracker) ActualCost() uint64 {
+func (c *CostTracker) ActualCost() uint64 {
return c.cost
}
-func (c CostTracker) costCall(call InterpretableCall, argValues []ref.Val, result ref.Val) uint64 {
+func (c *CostTracker) costCall(call InterpretableCall, args []ref.Val, result ref.Val) uint64 {
var cost uint64
+ if len(c.overloadTrackers) != 0 {
+ if tracker, found := c.overloadTrackers[call.OverloadID()]; found {
+ callCost := tracker(args, result)
+ if callCost != nil {
+ cost += *callCost
+ return cost
+ }
+ }
+ }
if c.Estimator != nil {
- callCost := c.Estimator.CallCost(call.Function(), call.OverloadID(), argValues, result)
+ callCost := c.Estimator.CallCost(call.Function(), call.OverloadID(), args, result)
if callCost != nil {
cost += *callCost
return cost
@@ -125,11 +198,11 @@ func (c CostTracker) costCall(call InterpretableCall, argValues []ref.Val, resul
switch call.OverloadID() {
// O(n) functions
case overloads.StartsWithString, overloads.EndsWithString, overloads.StringToBytes, overloads.BytesToString, overloads.ExtQuoteString, overloads.ExtFormatString:
- cost += uint64(math.Ceil(float64(c.actualSize(argValues[0])) * common.StringTraversalCostFactor))
+ cost += uint64(math.Ceil(float64(c.actualSize(args[0])) * common.StringTraversalCostFactor))
case overloads.InList:
// If a list is composed entirely of constant values this is O(1), but we don't account for that here.
// We just assume all list containment checks are O(n).
- cost += c.actualSize(argValues[1])
+ cost += c.actualSize(args[1])
// O(min(m, n)) functions
case overloads.LessString, overloads.GreaterString, overloads.LessEqualsString, overloads.GreaterEqualsString,
overloads.LessBytes, overloads.GreaterBytes, overloads.LessEqualsBytes, overloads.GreaterEqualsBytes,
@@ -137,8 +210,8 @@ func (c CostTracker) costCall(call InterpretableCall, argValues []ref.Val, resul
// When we check the equality of 2 scalar values (e.g. 2 integers, 2 floating-point numbers, 2 booleans etc.),
// the CostTracker.actualSize() function by definition returns 1 for each operand, resulting in an overall cost
// of 1.
- lhsSize := c.actualSize(argValues[0])
- rhsSize := c.actualSize(argValues[1])
+ lhsSize := c.actualSize(args[0])
+ rhsSize := c.actualSize(args[1])
minSize := lhsSize
if rhsSize < minSize {
minSize = rhsSize
@@ -147,23 +220,23 @@ func (c CostTracker) costCall(call InterpretableCall, argValues []ref.Val, resul
// O(m+n) functions
case overloads.AddString, overloads.AddBytes:
// In the worst case scenario, we would need to reallocate a new backing store and copy both operands over.
- cost += uint64(math.Ceil(float64(c.actualSize(argValues[0])+c.actualSize(argValues[1])) * common.StringTraversalCostFactor))
+ cost += uint64(math.Ceil(float64(c.actualSize(args[0])+c.actualSize(args[1])) * common.StringTraversalCostFactor))
// O(nm) functions
case overloads.MatchesString:
// https://swtch.com/~rsc/regexp/regexp1.html applies to RE2 implementation supported by CEL
// Add one to string length for purposes of cost calculation to prevent product of string and regex to be 0
// in case where string is empty but regex is still expensive.
- strCost := uint64(math.Ceil((1.0 + float64(c.actualSize(argValues[0]))) * common.StringTraversalCostFactor))
+ strCost := uint64(math.Ceil((1.0 + float64(c.actualSize(args[0]))) * common.StringTraversalCostFactor))
// We don't know how many expressions are in the regex, just the string length (a huge
// improvement here would be to somehow get a count the number of expressions in the regex or
// how many states are in the regex state machine and use that to measure regex cost).
// For now, we're making a guess that each expression in a regex is typically at least 4 chars
// in length.
- regexCost := uint64(math.Ceil(float64(c.actualSize(argValues[1])) * common.RegexStringLengthCostFactor))
+ regexCost := uint64(math.Ceil(float64(c.actualSize(args[1])) * common.RegexStringLengthCostFactor))
cost += strCost * regexCost
case overloads.ContainsString:
- strCost := uint64(math.Ceil(float64(c.actualSize(argValues[0])) * common.StringTraversalCostFactor))
- substrCost := uint64(math.Ceil(float64(c.actualSize(argValues[1])) * common.StringTraversalCostFactor))
+ strCost := uint64(math.Ceil(float64(c.actualSize(args[0])) * common.StringTraversalCostFactor))
+ substrCost := uint64(math.Ceil(float64(c.actualSize(args[1])) * common.StringTraversalCostFactor))
cost += strCost * substrCost
default:
@@ -181,7 +254,7 @@ func (c CostTracker) costCall(call InterpretableCall, argValues []ref.Val, resul
}
// actualSize returns the size of value
-func (c CostTracker) actualSize(value ref.Val) uint64 {
+func (c *CostTracker) actualSize(value ref.Val) uint64 {
if sz, ok := value.(traits.Sizer); ok {
return uint64(sz.Size().(types.Int))
}
diff --git a/vendor/github.com/google/cel-go/parser/BUILD.bazel b/vendor/github.com/google/cel-go/parser/BUILD.bazel
index c904ae3..97bc9bd 100644
--- a/vendor/github.com/google/cel-go/parser/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/parser/BUILD.bazel
@@ -20,11 +20,14 @@ go_library(
visibility = ["//visibility:public"],
deps = [
"//common:go_default_library",
+ "//common/ast:go_default_library",
"//common/operators:go_default_library",
"//common/runes:go_default_library",
+ "//common/types:go_default_library",
+ "//common/types/ref:go_default_library",
"//parser/gen:go_default_library",
- "@com_github_antlr_antlr4_runtime_go_antlr_v4//:go_default_library",
- "@org_golang_google_genproto//googleapis/api/expr/v1alpha1:go_default_library",
+ "@com_github_antlr4_go_antlr_v4//:go_default_library",
+ "@org_golang_google_genproto_googleapis_api//expr/v1alpha1:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//types/known/structpb:go_default_library",
],
@@ -43,10 +46,12 @@ go_test(
":go_default_library",
],
deps = [
+ "//common/ast:go_default_library",
"//common/debug:go_default_library",
+ "//common/types:go_default_library",
"//parser/gen:go_default_library",
"//test:go_default_library",
- "@com_github_antlr_antlr4_runtime_go_antlr_v4//:go_default_library",
+ "@com_github_antlr4_go_antlr_v4//:go_default_library",
"@org_golang_google_protobuf//proto:go_default_library",
"@org_golang_google_protobuf//testing/protocmp:go_default_library",
],
diff --git a/vendor/github.com/google/cel-go/parser/errors.go b/vendor/github.com/google/cel-go/parser/errors.go
index ce49bb8..93ae7a3 100644
--- a/vendor/github.com/google/cel-go/parser/errors.go
+++ b/vendor/github.com/google/cel-go/parser/errors.go
@@ -22,9 +22,22 @@ import (
// parseErrors is a specialization of Errors.
type parseErrors struct {
- *common.Errors
+ errs *common.Errors
+}
+
+// errorCount indicates the number of errors reported.
+func (e *parseErrors) errorCount() int {
+ return len(e.errs.GetErrors())
+}
+
+func (e *parseErrors) internalError(message string) {
+ e.errs.ReportErrorAtID(0, common.NoLocation, message)
}
func (e *parseErrors) syntaxError(l common.Location, message string) {
- e.ReportError(l, fmt.Sprintf("Syntax error: %s", message))
+ e.errs.ReportErrorAtID(0, l, fmt.Sprintf("Syntax error: %s", message))
+}
+
+func (e *parseErrors) reportErrorAtID(id int64, l common.Location, message string, args ...any) {
+ e.errs.ReportErrorAtID(id, l, message, args...)
}
diff --git a/vendor/github.com/google/cel-go/parser/gen/BUILD.bazel b/vendor/github.com/google/cel-go/parser/gen/BUILD.bazel
index 654d1de..3efed87 100644
--- a/vendor/github.com/google/cel-go/parser/gen/BUILD.bazel
+++ b/vendor/github.com/google/cel-go/parser/gen/BUILD.bazel
@@ -1,7 +1,7 @@
load("@io_bazel_rules_go//go:def.bzl", "go_library")
package(
- default_visibility = ["//parser:__subpackages__"],
+ default_visibility = ["//:__subpackages__"],
licenses = ["notice"], # Apache 2.0
)
@@ -21,6 +21,6 @@ go_library(
],
importpath = "github.com/google/cel-go/parser/gen",
deps = [
- "@com_github_antlr_antlr4_runtime_go_antlr_v4//:go_default_library",
+ "@com_github_antlr4_go_antlr_v4//:go_default_library",
],
)
diff --git a/vendor/github.com/google/cel-go/parser/gen/cel_base_listener.go b/vendor/github.com/google/cel-go/parser/gen/cel_base_listener.go
index 0247f47..c49d038 100644
--- a/vendor/github.com/google/cel-go/parser/gen/cel_base_listener.go
+++ b/vendor/github.com/google/cel-go/parser/gen/cel_base_listener.go
@@ -1,7 +1,7 @@
-// Code generated from /Users/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.12.0. DO NOT EDIT.
+// Code generated from /usr/local/google/home/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.13.1. DO NOT EDIT.
package gen // CEL
-import "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+import "github.com/antlr4-go/antlr/v4"
// BaseCELListener is a complete listener for a parse tree produced by CELParser.
type BaseCELListener struct{}
diff --git a/vendor/github.com/google/cel-go/parser/gen/cel_base_visitor.go b/vendor/github.com/google/cel-go/parser/gen/cel_base_visitor.go
index 52a7f4d..b2c0783 100644
--- a/vendor/github.com/google/cel-go/parser/gen/cel_base_visitor.go
+++ b/vendor/github.com/google/cel-go/parser/gen/cel_base_visitor.go
@@ -1,7 +1,8 @@
-// Code generated from /Users/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.12.0. DO NOT EDIT.
+// Code generated from /usr/local/google/home/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.13.1. DO NOT EDIT.
package gen // CEL
-import "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+import "github.com/antlr4-go/antlr/v4"
+
type BaseCELVisitor struct {
*antlr.BaseParseTreeVisitor
diff --git a/vendor/github.com/google/cel-go/parser/gen/cel_lexer.go b/vendor/github.com/google/cel-go/parser/gen/cel_lexer.go
index 98ddc06..e026cc4 100644
--- a/vendor/github.com/google/cel-go/parser/gen/cel_lexer.go
+++ b/vendor/github.com/google/cel-go/parser/gen/cel_lexer.go
@@ -1,280 +1,278 @@
-// Code generated from /Users/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.12.0. DO NOT EDIT.
+// Code generated from /usr/local/google/home/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.13.1. DO NOT EDIT.
package gen
-
import (
"fmt"
- "sync"
+ "sync"
"unicode"
-
- "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+ "github.com/antlr4-go/antlr/v4"
)
-
// Suppress unused import error
var _ = fmt.Printf
var _ = sync.Once{}
var _ = unicode.IsLetter
+
type CELLexer struct {
*antlr.BaseLexer
channelNames []string
- modeNames []string
+ modeNames []string
// TODO: EOF string
}
-var cellexerLexerStaticData struct {
- once sync.Once
- serializedATN []int32
- channelNames []string
- modeNames []string
- literalNames []string
- symbolicNames []string
- ruleNames []string
- predictionContextCache *antlr.PredictionContextCache
- atn *antlr.ATN
- decisionToDFA []*antlr.DFA
+var CELLexerLexerStaticData struct {
+ once sync.Once
+ serializedATN []int32
+ ChannelNames []string
+ ModeNames []string
+ LiteralNames []string
+ SymbolicNames []string
+ RuleNames []string
+ PredictionContextCache *antlr.PredictionContextCache
+ atn *antlr.ATN
+ decisionToDFA []*antlr.DFA
}
func cellexerLexerInit() {
- staticData := &cellexerLexerStaticData
- staticData.channelNames = []string{
- "DEFAULT_TOKEN_CHANNEL", "HIDDEN",
- }
- staticData.modeNames = []string{
- "DEFAULT_MODE",
- }
- staticData.literalNames = []string{
- "", "'=='", "'!='", "'in'", "'<'", "'<='", "'>='", "'>'", "'&&'", "'||'",
- "'['", "']'", "'{'", "'}'", "'('", "')'", "'.'", "','", "'-'", "'!'",
- "'?'", "':'", "'+'", "'*'", "'/'", "'%'", "'true'", "'false'", "'null'",
- }
- staticData.symbolicNames = []string{
- "", "EQUALS", "NOT_EQUALS", "IN", "LESS", "LESS_EQUALS", "GREATER_EQUALS",
- "GREATER", "LOGICAL_AND", "LOGICAL_OR", "LBRACKET", "RPRACKET", "LBRACE",
- "RBRACE", "LPAREN", "RPAREN", "DOT", "COMMA", "MINUS", "EXCLAM", "QUESTIONMARK",
- "COLON", "PLUS", "STAR", "SLASH", "PERCENT", "CEL_TRUE", "CEL_FALSE",
- "NUL", "WHITESPACE", "COMMENT", "NUM_FLOAT", "NUM_INT", "NUM_UINT",
- "STRING", "BYTES", "IDENTIFIER",
- }
- staticData.ruleNames = []string{
- "EQUALS", "NOT_EQUALS", "IN", "LESS", "LESS_EQUALS", "GREATER_EQUALS",
- "GREATER", "LOGICAL_AND", "LOGICAL_OR", "LBRACKET", "RPRACKET", "LBRACE",
- "RBRACE", "LPAREN", "RPAREN", "DOT", "COMMA", "MINUS", "EXCLAM", "QUESTIONMARK",
- "COLON", "PLUS", "STAR", "SLASH", "PERCENT", "CEL_TRUE", "CEL_FALSE",
- "NUL", "BACKSLASH", "LETTER", "DIGIT", "EXPONENT", "HEXDIGIT", "RAW",
- "ESC_SEQ", "ESC_CHAR_SEQ", "ESC_OCT_SEQ", "ESC_BYTE_SEQ", "ESC_UNI_SEQ",
- "WHITESPACE", "COMMENT", "NUM_FLOAT", "NUM_INT", "NUM_UINT", "STRING",
- "BYTES", "IDENTIFIER",
- }
- staticData.predictionContextCache = antlr.NewPredictionContextCache()
- staticData.serializedATN = []int32{
- 4, 0, 36, 423, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2,
- 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2,
- 10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15,
- 7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7,
- 20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25,
- 2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 2, 30, 7, 30, 2,
- 31, 7, 31, 2, 32, 7, 32, 2, 33, 7, 33, 2, 34, 7, 34, 2, 35, 7, 35, 2, 36,
- 7, 36, 2, 37, 7, 37, 2, 38, 7, 38, 2, 39, 7, 39, 2, 40, 7, 40, 2, 41, 7,
- 41, 2, 42, 7, 42, 2, 43, 7, 43, 2, 44, 7, 44, 2, 45, 7, 45, 2, 46, 7, 46,
- 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 4,
- 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8,
- 1, 8, 1, 9, 1, 9, 1, 10, 1, 10, 1, 11, 1, 11, 1, 12, 1, 12, 1, 13, 1, 13,
- 1, 14, 1, 14, 1, 15, 1, 15, 1, 16, 1, 16, 1, 17, 1, 17, 1, 18, 1, 18, 1,
- 19, 1, 19, 1, 20, 1, 20, 1, 21, 1, 21, 1, 22, 1, 22, 1, 23, 1, 23, 1, 24,
- 1, 24, 1, 25, 1, 25, 1, 25, 1, 25, 1, 25, 1, 26, 1, 26, 1, 26, 1, 26, 1,
- 26, 1, 26, 1, 27, 1, 27, 1, 27, 1, 27, 1, 27, 1, 28, 1, 28, 1, 29, 1, 29,
- 1, 30, 1, 30, 1, 31, 1, 31, 3, 31, 177, 8, 31, 1, 31, 4, 31, 180, 8, 31,
- 11, 31, 12, 31, 181, 1, 32, 1, 32, 1, 33, 1, 33, 1, 34, 1, 34, 1, 34, 1,
- 34, 3, 34, 192, 8, 34, 1, 35, 1, 35, 1, 35, 1, 36, 1, 36, 1, 36, 1, 36,
- 1, 36, 1, 37, 1, 37, 1, 37, 1, 37, 1, 37, 1, 38, 1, 38, 1, 38, 1, 38, 1,
- 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38,
- 1, 38, 1, 38, 1, 38, 3, 38, 225, 8, 38, 1, 39, 4, 39, 228, 8, 39, 11, 39,
- 12, 39, 229, 1, 39, 1, 39, 1, 40, 1, 40, 1, 40, 1, 40, 5, 40, 238, 8, 40,
- 10, 40, 12, 40, 241, 9, 40, 1, 40, 1, 40, 1, 41, 4, 41, 246, 8, 41, 11,
- 41, 12, 41, 247, 1, 41, 1, 41, 4, 41, 252, 8, 41, 11, 41, 12, 41, 253,
- 1, 41, 3, 41, 257, 8, 41, 1, 41, 4, 41, 260, 8, 41, 11, 41, 12, 41, 261,
- 1, 41, 1, 41, 1, 41, 1, 41, 4, 41, 268, 8, 41, 11, 41, 12, 41, 269, 1,
- 41, 3, 41, 273, 8, 41, 3, 41, 275, 8, 41, 1, 42, 4, 42, 278, 8, 42, 11,
- 42, 12, 42, 279, 1, 42, 1, 42, 1, 42, 1, 42, 4, 42, 286, 8, 42, 11, 42,
- 12, 42, 287, 3, 42, 290, 8, 42, 1, 43, 4, 43, 293, 8, 43, 11, 43, 12, 43,
- 294, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 4, 43, 303, 8, 43, 11, 43,
- 12, 43, 304, 1, 43, 1, 43, 3, 43, 309, 8, 43, 1, 44, 1, 44, 1, 44, 5, 44,
- 314, 8, 44, 10, 44, 12, 44, 317, 9, 44, 1, 44, 1, 44, 1, 44, 1, 44, 5,
- 44, 323, 8, 44, 10, 44, 12, 44, 326, 9, 44, 1, 44, 1, 44, 1, 44, 1, 44,
- 1, 44, 1, 44, 1, 44, 5, 44, 335, 8, 44, 10, 44, 12, 44, 338, 9, 44, 1,
- 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 5, 44, 349,
- 8, 44, 10, 44, 12, 44, 352, 9, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1,
- 44, 5, 44, 360, 8, 44, 10, 44, 12, 44, 363, 9, 44, 1, 44, 1, 44, 1, 44,
- 1, 44, 1, 44, 5, 44, 370, 8, 44, 10, 44, 12, 44, 373, 9, 44, 1, 44, 1,
- 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 5, 44, 383, 8, 44, 10, 44,
- 12, 44, 386, 9, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1,
- 44, 1, 44, 1, 44, 5, 44, 398, 8, 44, 10, 44, 12, 44, 401, 9, 44, 1, 44,
- 1, 44, 1, 44, 1, 44, 3, 44, 407, 8, 44, 1, 45, 1, 45, 1, 45, 1, 46, 1,
- 46, 3, 46, 414, 8, 46, 1, 46, 1, 46, 1, 46, 5, 46, 419, 8, 46, 10, 46,
- 12, 46, 422, 9, 46, 4, 336, 350, 384, 399, 0, 47, 1, 1, 3, 2, 5, 3, 7,
- 4, 9, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 21, 11, 23, 12, 25, 13, 27,
- 14, 29, 15, 31, 16, 33, 17, 35, 18, 37, 19, 39, 20, 41, 21, 43, 22, 45,
- 23, 47, 24, 49, 25, 51, 26, 53, 27, 55, 28, 57, 0, 59, 0, 61, 0, 63, 0,
- 65, 0, 67, 0, 69, 0, 71, 0, 73, 0, 75, 0, 77, 0, 79, 29, 81, 30, 83, 31,
- 85, 32, 87, 33, 89, 34, 91, 35, 93, 36, 1, 0, 16, 2, 0, 65, 90, 97, 122,
- 2, 0, 69, 69, 101, 101, 2, 0, 43, 43, 45, 45, 3, 0, 48, 57, 65, 70, 97,
- 102, 2, 0, 82, 82, 114, 114, 10, 0, 34, 34, 39, 39, 63, 63, 92, 92, 96,
- 98, 102, 102, 110, 110, 114, 114, 116, 116, 118, 118, 2, 0, 88, 88, 120,
- 120, 3, 0, 9, 10, 12, 13, 32, 32, 1, 0, 10, 10, 2, 0, 85, 85, 117, 117,
- 4, 0, 10, 10, 13, 13, 34, 34, 92, 92, 4, 0, 10, 10, 13, 13, 39, 39, 92,
- 92, 1, 0, 92, 92, 3, 0, 10, 10, 13, 13, 34, 34, 3, 0, 10, 10, 13, 13, 39,
- 39, 2, 0, 66, 66, 98, 98, 456, 0, 1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5,
- 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 13,
- 1, 0, 0, 0, 0, 15, 1, 0, 0, 0, 0, 17, 1, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0,
- 21, 1, 0, 0, 0, 0, 23, 1, 0, 0, 0, 0, 25, 1, 0, 0, 0, 0, 27, 1, 0, 0, 0,
- 0, 29, 1, 0, 0, 0, 0, 31, 1, 0, 0, 0, 0, 33, 1, 0, 0, 0, 0, 35, 1, 0, 0,
- 0, 0, 37, 1, 0, 0, 0, 0, 39, 1, 0, 0, 0, 0, 41, 1, 0, 0, 0, 0, 43, 1, 0,
- 0, 0, 0, 45, 1, 0, 0, 0, 0, 47, 1, 0, 0, 0, 0, 49, 1, 0, 0, 0, 0, 51, 1,
- 0, 0, 0, 0, 53, 1, 0, 0, 0, 0, 55, 1, 0, 0, 0, 0, 79, 1, 0, 0, 0, 0, 81,
- 1, 0, 0, 0, 0, 83, 1, 0, 0, 0, 0, 85, 1, 0, 0, 0, 0, 87, 1, 0, 0, 0, 0,
- 89, 1, 0, 0, 0, 0, 91, 1, 0, 0, 0, 0, 93, 1, 0, 0, 0, 1, 95, 1, 0, 0, 0,
- 3, 98, 1, 0, 0, 0, 5, 101, 1, 0, 0, 0, 7, 104, 1, 0, 0, 0, 9, 106, 1, 0,
- 0, 0, 11, 109, 1, 0, 0, 0, 13, 112, 1, 0, 0, 0, 15, 114, 1, 0, 0, 0, 17,
- 117, 1, 0, 0, 0, 19, 120, 1, 0, 0, 0, 21, 122, 1, 0, 0, 0, 23, 124, 1,
- 0, 0, 0, 25, 126, 1, 0, 0, 0, 27, 128, 1, 0, 0, 0, 29, 130, 1, 0, 0, 0,
- 31, 132, 1, 0, 0, 0, 33, 134, 1, 0, 0, 0, 35, 136, 1, 0, 0, 0, 37, 138,
- 1, 0, 0, 0, 39, 140, 1, 0, 0, 0, 41, 142, 1, 0, 0, 0, 43, 144, 1, 0, 0,
- 0, 45, 146, 1, 0, 0, 0, 47, 148, 1, 0, 0, 0, 49, 150, 1, 0, 0, 0, 51, 152,
- 1, 0, 0, 0, 53, 157, 1, 0, 0, 0, 55, 163, 1, 0, 0, 0, 57, 168, 1, 0, 0,
- 0, 59, 170, 1, 0, 0, 0, 61, 172, 1, 0, 0, 0, 63, 174, 1, 0, 0, 0, 65, 183,
- 1, 0, 0, 0, 67, 185, 1, 0, 0, 0, 69, 191, 1, 0, 0, 0, 71, 193, 1, 0, 0,
- 0, 73, 196, 1, 0, 0, 0, 75, 201, 1, 0, 0, 0, 77, 224, 1, 0, 0, 0, 79, 227,
- 1, 0, 0, 0, 81, 233, 1, 0, 0, 0, 83, 274, 1, 0, 0, 0, 85, 289, 1, 0, 0,
- 0, 87, 308, 1, 0, 0, 0, 89, 406, 1, 0, 0, 0, 91, 408, 1, 0, 0, 0, 93, 413,
- 1, 0, 0, 0, 95, 96, 5, 61, 0, 0, 96, 97, 5, 61, 0, 0, 97, 2, 1, 0, 0, 0,
- 98, 99, 5, 33, 0, 0, 99, 100, 5, 61, 0, 0, 100, 4, 1, 0, 0, 0, 101, 102,
- 5, 105, 0, 0, 102, 103, 5, 110, 0, 0, 103, 6, 1, 0, 0, 0, 104, 105, 5,
- 60, 0, 0, 105, 8, 1, 0, 0, 0, 106, 107, 5, 60, 0, 0, 107, 108, 5, 61, 0,
- 0, 108, 10, 1, 0, 0, 0, 109, 110, 5, 62, 0, 0, 110, 111, 5, 61, 0, 0, 111,
- 12, 1, 0, 0, 0, 112, 113, 5, 62, 0, 0, 113, 14, 1, 0, 0, 0, 114, 115, 5,
- 38, 0, 0, 115, 116, 5, 38, 0, 0, 116, 16, 1, 0, 0, 0, 117, 118, 5, 124,
- 0, 0, 118, 119, 5, 124, 0, 0, 119, 18, 1, 0, 0, 0, 120, 121, 5, 91, 0,
- 0, 121, 20, 1, 0, 0, 0, 122, 123, 5, 93, 0, 0, 123, 22, 1, 0, 0, 0, 124,
- 125, 5, 123, 0, 0, 125, 24, 1, 0, 0, 0, 126, 127, 5, 125, 0, 0, 127, 26,
- 1, 0, 0, 0, 128, 129, 5, 40, 0, 0, 129, 28, 1, 0, 0, 0, 130, 131, 5, 41,
- 0, 0, 131, 30, 1, 0, 0, 0, 132, 133, 5, 46, 0, 0, 133, 32, 1, 0, 0, 0,
- 134, 135, 5, 44, 0, 0, 135, 34, 1, 0, 0, 0, 136, 137, 5, 45, 0, 0, 137,
- 36, 1, 0, 0, 0, 138, 139, 5, 33, 0, 0, 139, 38, 1, 0, 0, 0, 140, 141, 5,
- 63, 0, 0, 141, 40, 1, 0, 0, 0, 142, 143, 5, 58, 0, 0, 143, 42, 1, 0, 0,
- 0, 144, 145, 5, 43, 0, 0, 145, 44, 1, 0, 0, 0, 146, 147, 5, 42, 0, 0, 147,
- 46, 1, 0, 0, 0, 148, 149, 5, 47, 0, 0, 149, 48, 1, 0, 0, 0, 150, 151, 5,
- 37, 0, 0, 151, 50, 1, 0, 0, 0, 152, 153, 5, 116, 0, 0, 153, 154, 5, 114,
- 0, 0, 154, 155, 5, 117, 0, 0, 155, 156, 5, 101, 0, 0, 156, 52, 1, 0, 0,
- 0, 157, 158, 5, 102, 0, 0, 158, 159, 5, 97, 0, 0, 159, 160, 5, 108, 0,
- 0, 160, 161, 5, 115, 0, 0, 161, 162, 5, 101, 0, 0, 162, 54, 1, 0, 0, 0,
- 163, 164, 5, 110, 0, 0, 164, 165, 5, 117, 0, 0, 165, 166, 5, 108, 0, 0,
- 166, 167, 5, 108, 0, 0, 167, 56, 1, 0, 0, 0, 168, 169, 5, 92, 0, 0, 169,
- 58, 1, 0, 0, 0, 170, 171, 7, 0, 0, 0, 171, 60, 1, 0, 0, 0, 172, 173, 2,
- 48, 57, 0, 173, 62, 1, 0, 0, 0, 174, 176, 7, 1, 0, 0, 175, 177, 7, 2, 0,
- 0, 176, 175, 1, 0, 0, 0, 176, 177, 1, 0, 0, 0, 177, 179, 1, 0, 0, 0, 178,
- 180, 3, 61, 30, 0, 179, 178, 1, 0, 0, 0, 180, 181, 1, 0, 0, 0, 181, 179,
- 1, 0, 0, 0, 181, 182, 1, 0, 0, 0, 182, 64, 1, 0, 0, 0, 183, 184, 7, 3,
- 0, 0, 184, 66, 1, 0, 0, 0, 185, 186, 7, 4, 0, 0, 186, 68, 1, 0, 0, 0, 187,
- 192, 3, 71, 35, 0, 188, 192, 3, 75, 37, 0, 189, 192, 3, 77, 38, 0, 190,
- 192, 3, 73, 36, 0, 191, 187, 1, 0, 0, 0, 191, 188, 1, 0, 0, 0, 191, 189,
- 1, 0, 0, 0, 191, 190, 1, 0, 0, 0, 192, 70, 1, 0, 0, 0, 193, 194, 3, 57,
- 28, 0, 194, 195, 7, 5, 0, 0, 195, 72, 1, 0, 0, 0, 196, 197, 3, 57, 28,
- 0, 197, 198, 2, 48, 51, 0, 198, 199, 2, 48, 55, 0, 199, 200, 2, 48, 55,
- 0, 200, 74, 1, 0, 0, 0, 201, 202, 3, 57, 28, 0, 202, 203, 7, 6, 0, 0, 203,
- 204, 3, 65, 32, 0, 204, 205, 3, 65, 32, 0, 205, 76, 1, 0, 0, 0, 206, 207,
- 3, 57, 28, 0, 207, 208, 5, 117, 0, 0, 208, 209, 3, 65, 32, 0, 209, 210,
- 3, 65, 32, 0, 210, 211, 3, 65, 32, 0, 211, 212, 3, 65, 32, 0, 212, 225,
- 1, 0, 0, 0, 213, 214, 3, 57, 28, 0, 214, 215, 5, 85, 0, 0, 215, 216, 3,
- 65, 32, 0, 216, 217, 3, 65, 32, 0, 217, 218, 3, 65, 32, 0, 218, 219, 3,
- 65, 32, 0, 219, 220, 3, 65, 32, 0, 220, 221, 3, 65, 32, 0, 221, 222, 3,
- 65, 32, 0, 222, 223, 3, 65, 32, 0, 223, 225, 1, 0, 0, 0, 224, 206, 1, 0,
- 0, 0, 224, 213, 1, 0, 0, 0, 225, 78, 1, 0, 0, 0, 226, 228, 7, 7, 0, 0,
- 227, 226, 1, 0, 0, 0, 228, 229, 1, 0, 0, 0, 229, 227, 1, 0, 0, 0, 229,
- 230, 1, 0, 0, 0, 230, 231, 1, 0, 0, 0, 231, 232, 6, 39, 0, 0, 232, 80,
- 1, 0, 0, 0, 233, 234, 5, 47, 0, 0, 234, 235, 5, 47, 0, 0, 235, 239, 1,
- 0, 0, 0, 236, 238, 8, 8, 0, 0, 237, 236, 1, 0, 0, 0, 238, 241, 1, 0, 0,
- 0, 239, 237, 1, 0, 0, 0, 239, 240, 1, 0, 0, 0, 240, 242, 1, 0, 0, 0, 241,
- 239, 1, 0, 0, 0, 242, 243, 6, 40, 0, 0, 243, 82, 1, 0, 0, 0, 244, 246,
- 3, 61, 30, 0, 245, 244, 1, 0, 0, 0, 246, 247, 1, 0, 0, 0, 247, 245, 1,
- 0, 0, 0, 247, 248, 1, 0, 0, 0, 248, 249, 1, 0, 0, 0, 249, 251, 5, 46, 0,
- 0, 250, 252, 3, 61, 30, 0, 251, 250, 1, 0, 0, 0, 252, 253, 1, 0, 0, 0,
- 253, 251, 1, 0, 0, 0, 253, 254, 1, 0, 0, 0, 254, 256, 1, 0, 0, 0, 255,
- 257, 3, 63, 31, 0, 256, 255, 1, 0, 0, 0, 256, 257, 1, 0, 0, 0, 257, 275,
- 1, 0, 0, 0, 258, 260, 3, 61, 30, 0, 259, 258, 1, 0, 0, 0, 260, 261, 1,
- 0, 0, 0, 261, 259, 1, 0, 0, 0, 261, 262, 1, 0, 0, 0, 262, 263, 1, 0, 0,
- 0, 263, 264, 3, 63, 31, 0, 264, 275, 1, 0, 0, 0, 265, 267, 5, 46, 0, 0,
- 266, 268, 3, 61, 30, 0, 267, 266, 1, 0, 0, 0, 268, 269, 1, 0, 0, 0, 269,
- 267, 1, 0, 0, 0, 269, 270, 1, 0, 0, 0, 270, 272, 1, 0, 0, 0, 271, 273,
- 3, 63, 31, 0, 272, 271, 1, 0, 0, 0, 272, 273, 1, 0, 0, 0, 273, 275, 1,
- 0, 0, 0, 274, 245, 1, 0, 0, 0, 274, 259, 1, 0, 0, 0, 274, 265, 1, 0, 0,
- 0, 275, 84, 1, 0, 0, 0, 276, 278, 3, 61, 30, 0, 277, 276, 1, 0, 0, 0, 278,
- 279, 1, 0, 0, 0, 279, 277, 1, 0, 0, 0, 279, 280, 1, 0, 0, 0, 280, 290,
- 1, 0, 0, 0, 281, 282, 5, 48, 0, 0, 282, 283, 5, 120, 0, 0, 283, 285, 1,
- 0, 0, 0, 284, 286, 3, 65, 32, 0, 285, 284, 1, 0, 0, 0, 286, 287, 1, 0,
- 0, 0, 287, 285, 1, 0, 0, 0, 287, 288, 1, 0, 0, 0, 288, 290, 1, 0, 0, 0,
- 289, 277, 1, 0, 0, 0, 289, 281, 1, 0, 0, 0, 290, 86, 1, 0, 0, 0, 291, 293,
- 3, 61, 30, 0, 292, 291, 1, 0, 0, 0, 293, 294, 1, 0, 0, 0, 294, 292, 1,
- 0, 0, 0, 294, 295, 1, 0, 0, 0, 295, 296, 1, 0, 0, 0, 296, 297, 7, 9, 0,
- 0, 297, 309, 1, 0, 0, 0, 298, 299, 5, 48, 0, 0, 299, 300, 5, 120, 0, 0,
- 300, 302, 1, 0, 0, 0, 301, 303, 3, 65, 32, 0, 302, 301, 1, 0, 0, 0, 303,
- 304, 1, 0, 0, 0, 304, 302, 1, 0, 0, 0, 304, 305, 1, 0, 0, 0, 305, 306,
- 1, 0, 0, 0, 306, 307, 7, 9, 0, 0, 307, 309, 1, 0, 0, 0, 308, 292, 1, 0,
- 0, 0, 308, 298, 1, 0, 0, 0, 309, 88, 1, 0, 0, 0, 310, 315, 5, 34, 0, 0,
- 311, 314, 3, 69, 34, 0, 312, 314, 8, 10, 0, 0, 313, 311, 1, 0, 0, 0, 313,
- 312, 1, 0, 0, 0, 314, 317, 1, 0, 0, 0, 315, 313, 1, 0, 0, 0, 315, 316,
- 1, 0, 0, 0, 316, 318, 1, 0, 0, 0, 317, 315, 1, 0, 0, 0, 318, 407, 5, 34,
- 0, 0, 319, 324, 5, 39, 0, 0, 320, 323, 3, 69, 34, 0, 321, 323, 8, 11, 0,
- 0, 322, 320, 1, 0, 0, 0, 322, 321, 1, 0, 0, 0, 323, 326, 1, 0, 0, 0, 324,
- 322, 1, 0, 0, 0, 324, 325, 1, 0, 0, 0, 325, 327, 1, 0, 0, 0, 326, 324,
- 1, 0, 0, 0, 327, 407, 5, 39, 0, 0, 328, 329, 5, 34, 0, 0, 329, 330, 5,
- 34, 0, 0, 330, 331, 5, 34, 0, 0, 331, 336, 1, 0, 0, 0, 332, 335, 3, 69,
- 34, 0, 333, 335, 8, 12, 0, 0, 334, 332, 1, 0, 0, 0, 334, 333, 1, 0, 0,
- 0, 335, 338, 1, 0, 0, 0, 336, 337, 1, 0, 0, 0, 336, 334, 1, 0, 0, 0, 337,
- 339, 1, 0, 0, 0, 338, 336, 1, 0, 0, 0, 339, 340, 5, 34, 0, 0, 340, 341,
- 5, 34, 0, 0, 341, 407, 5, 34, 0, 0, 342, 343, 5, 39, 0, 0, 343, 344, 5,
- 39, 0, 0, 344, 345, 5, 39, 0, 0, 345, 350, 1, 0, 0, 0, 346, 349, 3, 69,
- 34, 0, 347, 349, 8, 12, 0, 0, 348, 346, 1, 0, 0, 0, 348, 347, 1, 0, 0,
- 0, 349, 352, 1, 0, 0, 0, 350, 351, 1, 0, 0, 0, 350, 348, 1, 0, 0, 0, 351,
- 353, 1, 0, 0, 0, 352, 350, 1, 0, 0, 0, 353, 354, 5, 39, 0, 0, 354, 355,
- 5, 39, 0, 0, 355, 407, 5, 39, 0, 0, 356, 357, 3, 67, 33, 0, 357, 361, 5,
- 34, 0, 0, 358, 360, 8, 13, 0, 0, 359, 358, 1, 0, 0, 0, 360, 363, 1, 0,
- 0, 0, 361, 359, 1, 0, 0, 0, 361, 362, 1, 0, 0, 0, 362, 364, 1, 0, 0, 0,
- 363, 361, 1, 0, 0, 0, 364, 365, 5, 34, 0, 0, 365, 407, 1, 0, 0, 0, 366,
- 367, 3, 67, 33, 0, 367, 371, 5, 39, 0, 0, 368, 370, 8, 14, 0, 0, 369, 368,
- 1, 0, 0, 0, 370, 373, 1, 0, 0, 0, 371, 369, 1, 0, 0, 0, 371, 372, 1, 0,
- 0, 0, 372, 374, 1, 0, 0, 0, 373, 371, 1, 0, 0, 0, 374, 375, 5, 39, 0, 0,
- 375, 407, 1, 0, 0, 0, 376, 377, 3, 67, 33, 0, 377, 378, 5, 34, 0, 0, 378,
- 379, 5, 34, 0, 0, 379, 380, 5, 34, 0, 0, 380, 384, 1, 0, 0, 0, 381, 383,
- 9, 0, 0, 0, 382, 381, 1, 0, 0, 0, 383, 386, 1, 0, 0, 0, 384, 385, 1, 0,
- 0, 0, 384, 382, 1, 0, 0, 0, 385, 387, 1, 0, 0, 0, 386, 384, 1, 0, 0, 0,
- 387, 388, 5, 34, 0, 0, 388, 389, 5, 34, 0, 0, 389, 390, 5, 34, 0, 0, 390,
- 407, 1, 0, 0, 0, 391, 392, 3, 67, 33, 0, 392, 393, 5, 39, 0, 0, 393, 394,
- 5, 39, 0, 0, 394, 395, 5, 39, 0, 0, 395, 399, 1, 0, 0, 0, 396, 398, 9,
- 0, 0, 0, 397, 396, 1, 0, 0, 0, 398, 401, 1, 0, 0, 0, 399, 400, 1, 0, 0,
- 0, 399, 397, 1, 0, 0, 0, 400, 402, 1, 0, 0, 0, 401, 399, 1, 0, 0, 0, 402,
- 403, 5, 39, 0, 0, 403, 404, 5, 39, 0, 0, 404, 405, 5, 39, 0, 0, 405, 407,
- 1, 0, 0, 0, 406, 310, 1, 0, 0, 0, 406, 319, 1, 0, 0, 0, 406, 328, 1, 0,
- 0, 0, 406, 342, 1, 0, 0, 0, 406, 356, 1, 0, 0, 0, 406, 366, 1, 0, 0, 0,
- 406, 376, 1, 0, 0, 0, 406, 391, 1, 0, 0, 0, 407, 90, 1, 0, 0, 0, 408, 409,
- 7, 15, 0, 0, 409, 410, 3, 89, 44, 0, 410, 92, 1, 0, 0, 0, 411, 414, 3,
- 59, 29, 0, 412, 414, 5, 95, 0, 0, 413, 411, 1, 0, 0, 0, 413, 412, 1, 0,
- 0, 0, 414, 420, 1, 0, 0, 0, 415, 419, 3, 59, 29, 0, 416, 419, 3, 61, 30,
- 0, 417, 419, 5, 95, 0, 0, 418, 415, 1, 0, 0, 0, 418, 416, 1, 0, 0, 0, 418,
- 417, 1, 0, 0, 0, 419, 422, 1, 0, 0, 0, 420, 418, 1, 0, 0, 0, 420, 421,
- 1, 0, 0, 0, 421, 94, 1, 0, 0, 0, 422, 420, 1, 0, 0, 0, 36, 0, 176, 181,
- 191, 224, 229, 239, 247, 253, 256, 261, 269, 272, 274, 279, 287, 289, 294,
- 304, 308, 313, 315, 322, 324, 334, 336, 348, 350, 361, 371, 384, 399, 406,
- 413, 418, 420, 1, 0, 1, 0,
- }
- deserializer := antlr.NewATNDeserializer(nil)
- staticData.atn = deserializer.Deserialize(staticData.serializedATN)
- atn := staticData.atn
- staticData.decisionToDFA = make([]*antlr.DFA, len(atn.DecisionToState))
- decisionToDFA := staticData.decisionToDFA
- for index, state := range atn.DecisionToState {
- decisionToDFA[index] = antlr.NewDFA(state, index)
- }
+ staticData := &CELLexerLexerStaticData
+ staticData.ChannelNames = []string{
+ "DEFAULT_TOKEN_CHANNEL", "HIDDEN",
+ }
+ staticData.ModeNames = []string{
+ "DEFAULT_MODE",
+ }
+ staticData.LiteralNames = []string{
+ "", "'=='", "'!='", "'in'", "'<'", "'<='", "'>='", "'>'", "'&&'", "'||'",
+ "'['", "']'", "'{'", "'}'", "'('", "')'", "'.'", "','", "'-'", "'!'",
+ "'?'", "':'", "'+'", "'*'", "'/'", "'%'", "'true'", "'false'", "'null'",
+ }
+ staticData.SymbolicNames = []string{
+ "", "EQUALS", "NOT_EQUALS", "IN", "LESS", "LESS_EQUALS", "GREATER_EQUALS",
+ "GREATER", "LOGICAL_AND", "LOGICAL_OR", "LBRACKET", "RPRACKET", "LBRACE",
+ "RBRACE", "LPAREN", "RPAREN", "DOT", "COMMA", "MINUS", "EXCLAM", "QUESTIONMARK",
+ "COLON", "PLUS", "STAR", "SLASH", "PERCENT", "CEL_TRUE", "CEL_FALSE",
+ "NUL", "WHITESPACE", "COMMENT", "NUM_FLOAT", "NUM_INT", "NUM_UINT",
+ "STRING", "BYTES", "IDENTIFIER",
+ }
+ staticData.RuleNames = []string{
+ "EQUALS", "NOT_EQUALS", "IN", "LESS", "LESS_EQUALS", "GREATER_EQUALS",
+ "GREATER", "LOGICAL_AND", "LOGICAL_OR", "LBRACKET", "RPRACKET", "LBRACE",
+ "RBRACE", "LPAREN", "RPAREN", "DOT", "COMMA", "MINUS", "EXCLAM", "QUESTIONMARK",
+ "COLON", "PLUS", "STAR", "SLASH", "PERCENT", "CEL_TRUE", "CEL_FALSE",
+ "NUL", "BACKSLASH", "LETTER", "DIGIT", "EXPONENT", "HEXDIGIT", "RAW",
+ "ESC_SEQ", "ESC_CHAR_SEQ", "ESC_OCT_SEQ", "ESC_BYTE_SEQ", "ESC_UNI_SEQ",
+ "WHITESPACE", "COMMENT", "NUM_FLOAT", "NUM_INT", "NUM_UINT", "STRING",
+ "BYTES", "IDENTIFIER",
+ }
+ staticData.PredictionContextCache = antlr.NewPredictionContextCache()
+ staticData.serializedATN = []int32{
+ 4, 0, 36, 423, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2,
+ 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2,
+ 10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15,
+ 7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7,
+ 20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25,
+ 2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 2, 30, 7, 30, 2,
+ 31, 7, 31, 2, 32, 7, 32, 2, 33, 7, 33, 2, 34, 7, 34, 2, 35, 7, 35, 2, 36,
+ 7, 36, 2, 37, 7, 37, 2, 38, 7, 38, 2, 39, 7, 39, 2, 40, 7, 40, 2, 41, 7,
+ 41, 2, 42, 7, 42, 2, 43, 7, 43, 2, 44, 7, 44, 2, 45, 7, 45, 2, 46, 7, 46,
+ 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 4,
+ 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8,
+ 1, 8, 1, 9, 1, 9, 1, 10, 1, 10, 1, 11, 1, 11, 1, 12, 1, 12, 1, 13, 1, 13,
+ 1, 14, 1, 14, 1, 15, 1, 15, 1, 16, 1, 16, 1, 17, 1, 17, 1, 18, 1, 18, 1,
+ 19, 1, 19, 1, 20, 1, 20, 1, 21, 1, 21, 1, 22, 1, 22, 1, 23, 1, 23, 1, 24,
+ 1, 24, 1, 25, 1, 25, 1, 25, 1, 25, 1, 25, 1, 26, 1, 26, 1, 26, 1, 26, 1,
+ 26, 1, 26, 1, 27, 1, 27, 1, 27, 1, 27, 1, 27, 1, 28, 1, 28, 1, 29, 1, 29,
+ 1, 30, 1, 30, 1, 31, 1, 31, 3, 31, 177, 8, 31, 1, 31, 4, 31, 180, 8, 31,
+ 11, 31, 12, 31, 181, 1, 32, 1, 32, 1, 33, 1, 33, 1, 34, 1, 34, 1, 34, 1,
+ 34, 3, 34, 192, 8, 34, 1, 35, 1, 35, 1, 35, 1, 36, 1, 36, 1, 36, 1, 36,
+ 1, 36, 1, 37, 1, 37, 1, 37, 1, 37, 1, 37, 1, 38, 1, 38, 1, 38, 1, 38, 1,
+ 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38, 1, 38,
+ 1, 38, 1, 38, 1, 38, 3, 38, 225, 8, 38, 1, 39, 4, 39, 228, 8, 39, 11, 39,
+ 12, 39, 229, 1, 39, 1, 39, 1, 40, 1, 40, 1, 40, 1, 40, 5, 40, 238, 8, 40,
+ 10, 40, 12, 40, 241, 9, 40, 1, 40, 1, 40, 1, 41, 4, 41, 246, 8, 41, 11,
+ 41, 12, 41, 247, 1, 41, 1, 41, 4, 41, 252, 8, 41, 11, 41, 12, 41, 253,
+ 1, 41, 3, 41, 257, 8, 41, 1, 41, 4, 41, 260, 8, 41, 11, 41, 12, 41, 261,
+ 1, 41, 1, 41, 1, 41, 1, 41, 4, 41, 268, 8, 41, 11, 41, 12, 41, 269, 1,
+ 41, 3, 41, 273, 8, 41, 3, 41, 275, 8, 41, 1, 42, 4, 42, 278, 8, 42, 11,
+ 42, 12, 42, 279, 1, 42, 1, 42, 1, 42, 1, 42, 4, 42, 286, 8, 42, 11, 42,
+ 12, 42, 287, 3, 42, 290, 8, 42, 1, 43, 4, 43, 293, 8, 43, 11, 43, 12, 43,
+ 294, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 1, 43, 4, 43, 303, 8, 43, 11, 43,
+ 12, 43, 304, 1, 43, 1, 43, 3, 43, 309, 8, 43, 1, 44, 1, 44, 1, 44, 5, 44,
+ 314, 8, 44, 10, 44, 12, 44, 317, 9, 44, 1, 44, 1, 44, 1, 44, 1, 44, 5,
+ 44, 323, 8, 44, 10, 44, 12, 44, 326, 9, 44, 1, 44, 1, 44, 1, 44, 1, 44,
+ 1, 44, 1, 44, 1, 44, 5, 44, 335, 8, 44, 10, 44, 12, 44, 338, 9, 44, 1,
+ 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 5, 44, 349,
+ 8, 44, 10, 44, 12, 44, 352, 9, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1,
+ 44, 5, 44, 360, 8, 44, 10, 44, 12, 44, 363, 9, 44, 1, 44, 1, 44, 1, 44,
+ 1, 44, 1, 44, 5, 44, 370, 8, 44, 10, 44, 12, 44, 373, 9, 44, 1, 44, 1,
+ 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 5, 44, 383, 8, 44, 10, 44,
+ 12, 44, 386, 9, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1,
+ 44, 1, 44, 1, 44, 5, 44, 398, 8, 44, 10, 44, 12, 44, 401, 9, 44, 1, 44,
+ 1, 44, 1, 44, 1, 44, 3, 44, 407, 8, 44, 1, 45, 1, 45, 1, 45, 1, 46, 1,
+ 46, 3, 46, 414, 8, 46, 1, 46, 1, 46, 1, 46, 5, 46, 419, 8, 46, 10, 46,
+ 12, 46, 422, 9, 46, 4, 336, 350, 384, 399, 0, 47, 1, 1, 3, 2, 5, 3, 7,
+ 4, 9, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 21, 11, 23, 12, 25, 13, 27,
+ 14, 29, 15, 31, 16, 33, 17, 35, 18, 37, 19, 39, 20, 41, 21, 43, 22, 45,
+ 23, 47, 24, 49, 25, 51, 26, 53, 27, 55, 28, 57, 0, 59, 0, 61, 0, 63, 0,
+ 65, 0, 67, 0, 69, 0, 71, 0, 73, 0, 75, 0, 77, 0, 79, 29, 81, 30, 83, 31,
+ 85, 32, 87, 33, 89, 34, 91, 35, 93, 36, 1, 0, 16, 2, 0, 65, 90, 97, 122,
+ 2, 0, 69, 69, 101, 101, 2, 0, 43, 43, 45, 45, 3, 0, 48, 57, 65, 70, 97,
+ 102, 2, 0, 82, 82, 114, 114, 10, 0, 34, 34, 39, 39, 63, 63, 92, 92, 96,
+ 98, 102, 102, 110, 110, 114, 114, 116, 116, 118, 118, 2, 0, 88, 88, 120,
+ 120, 3, 0, 9, 10, 12, 13, 32, 32, 1, 0, 10, 10, 2, 0, 85, 85, 117, 117,
+ 4, 0, 10, 10, 13, 13, 34, 34, 92, 92, 4, 0, 10, 10, 13, 13, 39, 39, 92,
+ 92, 1, 0, 92, 92, 3, 0, 10, 10, 13, 13, 34, 34, 3, 0, 10, 10, 13, 13, 39,
+ 39, 2, 0, 66, 66, 98, 98, 456, 0, 1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5,
+ 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 13,
+ 1, 0, 0, 0, 0, 15, 1, 0, 0, 0, 0, 17, 1, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0,
+ 21, 1, 0, 0, 0, 0, 23, 1, 0, 0, 0, 0, 25, 1, 0, 0, 0, 0, 27, 1, 0, 0, 0,
+ 0, 29, 1, 0, 0, 0, 0, 31, 1, 0, 0, 0, 0, 33, 1, 0, 0, 0, 0, 35, 1, 0, 0,
+ 0, 0, 37, 1, 0, 0, 0, 0, 39, 1, 0, 0, 0, 0, 41, 1, 0, 0, 0, 0, 43, 1, 0,
+ 0, 0, 0, 45, 1, 0, 0, 0, 0, 47, 1, 0, 0, 0, 0, 49, 1, 0, 0, 0, 0, 51, 1,
+ 0, 0, 0, 0, 53, 1, 0, 0, 0, 0, 55, 1, 0, 0, 0, 0, 79, 1, 0, 0, 0, 0, 81,
+ 1, 0, 0, 0, 0, 83, 1, 0, 0, 0, 0, 85, 1, 0, 0, 0, 0, 87, 1, 0, 0, 0, 0,
+ 89, 1, 0, 0, 0, 0, 91, 1, 0, 0, 0, 0, 93, 1, 0, 0, 0, 1, 95, 1, 0, 0, 0,
+ 3, 98, 1, 0, 0, 0, 5, 101, 1, 0, 0, 0, 7, 104, 1, 0, 0, 0, 9, 106, 1, 0,
+ 0, 0, 11, 109, 1, 0, 0, 0, 13, 112, 1, 0, 0, 0, 15, 114, 1, 0, 0, 0, 17,
+ 117, 1, 0, 0, 0, 19, 120, 1, 0, 0, 0, 21, 122, 1, 0, 0, 0, 23, 124, 1,
+ 0, 0, 0, 25, 126, 1, 0, 0, 0, 27, 128, 1, 0, 0, 0, 29, 130, 1, 0, 0, 0,
+ 31, 132, 1, 0, 0, 0, 33, 134, 1, 0, 0, 0, 35, 136, 1, 0, 0, 0, 37, 138,
+ 1, 0, 0, 0, 39, 140, 1, 0, 0, 0, 41, 142, 1, 0, 0, 0, 43, 144, 1, 0, 0,
+ 0, 45, 146, 1, 0, 0, 0, 47, 148, 1, 0, 0, 0, 49, 150, 1, 0, 0, 0, 51, 152,
+ 1, 0, 0, 0, 53, 157, 1, 0, 0, 0, 55, 163, 1, 0, 0, 0, 57, 168, 1, 0, 0,
+ 0, 59, 170, 1, 0, 0, 0, 61, 172, 1, 0, 0, 0, 63, 174, 1, 0, 0, 0, 65, 183,
+ 1, 0, 0, 0, 67, 185, 1, 0, 0, 0, 69, 191, 1, 0, 0, 0, 71, 193, 1, 0, 0,
+ 0, 73, 196, 1, 0, 0, 0, 75, 201, 1, 0, 0, 0, 77, 224, 1, 0, 0, 0, 79, 227,
+ 1, 0, 0, 0, 81, 233, 1, 0, 0, 0, 83, 274, 1, 0, 0, 0, 85, 289, 1, 0, 0,
+ 0, 87, 308, 1, 0, 0, 0, 89, 406, 1, 0, 0, 0, 91, 408, 1, 0, 0, 0, 93, 413,
+ 1, 0, 0, 0, 95, 96, 5, 61, 0, 0, 96, 97, 5, 61, 0, 0, 97, 2, 1, 0, 0, 0,
+ 98, 99, 5, 33, 0, 0, 99, 100, 5, 61, 0, 0, 100, 4, 1, 0, 0, 0, 101, 102,
+ 5, 105, 0, 0, 102, 103, 5, 110, 0, 0, 103, 6, 1, 0, 0, 0, 104, 105, 5,
+ 60, 0, 0, 105, 8, 1, 0, 0, 0, 106, 107, 5, 60, 0, 0, 107, 108, 5, 61, 0,
+ 0, 108, 10, 1, 0, 0, 0, 109, 110, 5, 62, 0, 0, 110, 111, 5, 61, 0, 0, 111,
+ 12, 1, 0, 0, 0, 112, 113, 5, 62, 0, 0, 113, 14, 1, 0, 0, 0, 114, 115, 5,
+ 38, 0, 0, 115, 116, 5, 38, 0, 0, 116, 16, 1, 0, 0, 0, 117, 118, 5, 124,
+ 0, 0, 118, 119, 5, 124, 0, 0, 119, 18, 1, 0, 0, 0, 120, 121, 5, 91, 0,
+ 0, 121, 20, 1, 0, 0, 0, 122, 123, 5, 93, 0, 0, 123, 22, 1, 0, 0, 0, 124,
+ 125, 5, 123, 0, 0, 125, 24, 1, 0, 0, 0, 126, 127, 5, 125, 0, 0, 127, 26,
+ 1, 0, 0, 0, 128, 129, 5, 40, 0, 0, 129, 28, 1, 0, 0, 0, 130, 131, 5, 41,
+ 0, 0, 131, 30, 1, 0, 0, 0, 132, 133, 5, 46, 0, 0, 133, 32, 1, 0, 0, 0,
+ 134, 135, 5, 44, 0, 0, 135, 34, 1, 0, 0, 0, 136, 137, 5, 45, 0, 0, 137,
+ 36, 1, 0, 0, 0, 138, 139, 5, 33, 0, 0, 139, 38, 1, 0, 0, 0, 140, 141, 5,
+ 63, 0, 0, 141, 40, 1, 0, 0, 0, 142, 143, 5, 58, 0, 0, 143, 42, 1, 0, 0,
+ 0, 144, 145, 5, 43, 0, 0, 145, 44, 1, 0, 0, 0, 146, 147, 5, 42, 0, 0, 147,
+ 46, 1, 0, 0, 0, 148, 149, 5, 47, 0, 0, 149, 48, 1, 0, 0, 0, 150, 151, 5,
+ 37, 0, 0, 151, 50, 1, 0, 0, 0, 152, 153, 5, 116, 0, 0, 153, 154, 5, 114,
+ 0, 0, 154, 155, 5, 117, 0, 0, 155, 156, 5, 101, 0, 0, 156, 52, 1, 0, 0,
+ 0, 157, 158, 5, 102, 0, 0, 158, 159, 5, 97, 0, 0, 159, 160, 5, 108, 0,
+ 0, 160, 161, 5, 115, 0, 0, 161, 162, 5, 101, 0, 0, 162, 54, 1, 0, 0, 0,
+ 163, 164, 5, 110, 0, 0, 164, 165, 5, 117, 0, 0, 165, 166, 5, 108, 0, 0,
+ 166, 167, 5, 108, 0, 0, 167, 56, 1, 0, 0, 0, 168, 169, 5, 92, 0, 0, 169,
+ 58, 1, 0, 0, 0, 170, 171, 7, 0, 0, 0, 171, 60, 1, 0, 0, 0, 172, 173, 2,
+ 48, 57, 0, 173, 62, 1, 0, 0, 0, 174, 176, 7, 1, 0, 0, 175, 177, 7, 2, 0,
+ 0, 176, 175, 1, 0, 0, 0, 176, 177, 1, 0, 0, 0, 177, 179, 1, 0, 0, 0, 178,
+ 180, 3, 61, 30, 0, 179, 178, 1, 0, 0, 0, 180, 181, 1, 0, 0, 0, 181, 179,
+ 1, 0, 0, 0, 181, 182, 1, 0, 0, 0, 182, 64, 1, 0, 0, 0, 183, 184, 7, 3,
+ 0, 0, 184, 66, 1, 0, 0, 0, 185, 186, 7, 4, 0, 0, 186, 68, 1, 0, 0, 0, 187,
+ 192, 3, 71, 35, 0, 188, 192, 3, 75, 37, 0, 189, 192, 3, 77, 38, 0, 190,
+ 192, 3, 73, 36, 0, 191, 187, 1, 0, 0, 0, 191, 188, 1, 0, 0, 0, 191, 189,
+ 1, 0, 0, 0, 191, 190, 1, 0, 0, 0, 192, 70, 1, 0, 0, 0, 193, 194, 3, 57,
+ 28, 0, 194, 195, 7, 5, 0, 0, 195, 72, 1, 0, 0, 0, 196, 197, 3, 57, 28,
+ 0, 197, 198, 2, 48, 51, 0, 198, 199, 2, 48, 55, 0, 199, 200, 2, 48, 55,
+ 0, 200, 74, 1, 0, 0, 0, 201, 202, 3, 57, 28, 0, 202, 203, 7, 6, 0, 0, 203,
+ 204, 3, 65, 32, 0, 204, 205, 3, 65, 32, 0, 205, 76, 1, 0, 0, 0, 206, 207,
+ 3, 57, 28, 0, 207, 208, 5, 117, 0, 0, 208, 209, 3, 65, 32, 0, 209, 210,
+ 3, 65, 32, 0, 210, 211, 3, 65, 32, 0, 211, 212, 3, 65, 32, 0, 212, 225,
+ 1, 0, 0, 0, 213, 214, 3, 57, 28, 0, 214, 215, 5, 85, 0, 0, 215, 216, 3,
+ 65, 32, 0, 216, 217, 3, 65, 32, 0, 217, 218, 3, 65, 32, 0, 218, 219, 3,
+ 65, 32, 0, 219, 220, 3, 65, 32, 0, 220, 221, 3, 65, 32, 0, 221, 222, 3,
+ 65, 32, 0, 222, 223, 3, 65, 32, 0, 223, 225, 1, 0, 0, 0, 224, 206, 1, 0,
+ 0, 0, 224, 213, 1, 0, 0, 0, 225, 78, 1, 0, 0, 0, 226, 228, 7, 7, 0, 0,
+ 227, 226, 1, 0, 0, 0, 228, 229, 1, 0, 0, 0, 229, 227, 1, 0, 0, 0, 229,
+ 230, 1, 0, 0, 0, 230, 231, 1, 0, 0, 0, 231, 232, 6, 39, 0, 0, 232, 80,
+ 1, 0, 0, 0, 233, 234, 5, 47, 0, 0, 234, 235, 5, 47, 0, 0, 235, 239, 1,
+ 0, 0, 0, 236, 238, 8, 8, 0, 0, 237, 236, 1, 0, 0, 0, 238, 241, 1, 0, 0,
+ 0, 239, 237, 1, 0, 0, 0, 239, 240, 1, 0, 0, 0, 240, 242, 1, 0, 0, 0, 241,
+ 239, 1, 0, 0, 0, 242, 243, 6, 40, 0, 0, 243, 82, 1, 0, 0, 0, 244, 246,
+ 3, 61, 30, 0, 245, 244, 1, 0, 0, 0, 246, 247, 1, 0, 0, 0, 247, 245, 1,
+ 0, 0, 0, 247, 248, 1, 0, 0, 0, 248, 249, 1, 0, 0, 0, 249, 251, 5, 46, 0,
+ 0, 250, 252, 3, 61, 30, 0, 251, 250, 1, 0, 0, 0, 252, 253, 1, 0, 0, 0,
+ 253, 251, 1, 0, 0, 0, 253, 254, 1, 0, 0, 0, 254, 256, 1, 0, 0, 0, 255,
+ 257, 3, 63, 31, 0, 256, 255, 1, 0, 0, 0, 256, 257, 1, 0, 0, 0, 257, 275,
+ 1, 0, 0, 0, 258, 260, 3, 61, 30, 0, 259, 258, 1, 0, 0, 0, 260, 261, 1,
+ 0, 0, 0, 261, 259, 1, 0, 0, 0, 261, 262, 1, 0, 0, 0, 262, 263, 1, 0, 0,
+ 0, 263, 264, 3, 63, 31, 0, 264, 275, 1, 0, 0, 0, 265, 267, 5, 46, 0, 0,
+ 266, 268, 3, 61, 30, 0, 267, 266, 1, 0, 0, 0, 268, 269, 1, 0, 0, 0, 269,
+ 267, 1, 0, 0, 0, 269, 270, 1, 0, 0, 0, 270, 272, 1, 0, 0, 0, 271, 273,
+ 3, 63, 31, 0, 272, 271, 1, 0, 0, 0, 272, 273, 1, 0, 0, 0, 273, 275, 1,
+ 0, 0, 0, 274, 245, 1, 0, 0, 0, 274, 259, 1, 0, 0, 0, 274, 265, 1, 0, 0,
+ 0, 275, 84, 1, 0, 0, 0, 276, 278, 3, 61, 30, 0, 277, 276, 1, 0, 0, 0, 278,
+ 279, 1, 0, 0, 0, 279, 277, 1, 0, 0, 0, 279, 280, 1, 0, 0, 0, 280, 290,
+ 1, 0, 0, 0, 281, 282, 5, 48, 0, 0, 282, 283, 5, 120, 0, 0, 283, 285, 1,
+ 0, 0, 0, 284, 286, 3, 65, 32, 0, 285, 284, 1, 0, 0, 0, 286, 287, 1, 0,
+ 0, 0, 287, 285, 1, 0, 0, 0, 287, 288, 1, 0, 0, 0, 288, 290, 1, 0, 0, 0,
+ 289, 277, 1, 0, 0, 0, 289, 281, 1, 0, 0, 0, 290, 86, 1, 0, 0, 0, 291, 293,
+ 3, 61, 30, 0, 292, 291, 1, 0, 0, 0, 293, 294, 1, 0, 0, 0, 294, 292, 1,
+ 0, 0, 0, 294, 295, 1, 0, 0, 0, 295, 296, 1, 0, 0, 0, 296, 297, 7, 9, 0,
+ 0, 297, 309, 1, 0, 0, 0, 298, 299, 5, 48, 0, 0, 299, 300, 5, 120, 0, 0,
+ 300, 302, 1, 0, 0, 0, 301, 303, 3, 65, 32, 0, 302, 301, 1, 0, 0, 0, 303,
+ 304, 1, 0, 0, 0, 304, 302, 1, 0, 0, 0, 304, 305, 1, 0, 0, 0, 305, 306,
+ 1, 0, 0, 0, 306, 307, 7, 9, 0, 0, 307, 309, 1, 0, 0, 0, 308, 292, 1, 0,
+ 0, 0, 308, 298, 1, 0, 0, 0, 309, 88, 1, 0, 0, 0, 310, 315, 5, 34, 0, 0,
+ 311, 314, 3, 69, 34, 0, 312, 314, 8, 10, 0, 0, 313, 311, 1, 0, 0, 0, 313,
+ 312, 1, 0, 0, 0, 314, 317, 1, 0, 0, 0, 315, 313, 1, 0, 0, 0, 315, 316,
+ 1, 0, 0, 0, 316, 318, 1, 0, 0, 0, 317, 315, 1, 0, 0, 0, 318, 407, 5, 34,
+ 0, 0, 319, 324, 5, 39, 0, 0, 320, 323, 3, 69, 34, 0, 321, 323, 8, 11, 0,
+ 0, 322, 320, 1, 0, 0, 0, 322, 321, 1, 0, 0, 0, 323, 326, 1, 0, 0, 0, 324,
+ 322, 1, 0, 0, 0, 324, 325, 1, 0, 0, 0, 325, 327, 1, 0, 0, 0, 326, 324,
+ 1, 0, 0, 0, 327, 407, 5, 39, 0, 0, 328, 329, 5, 34, 0, 0, 329, 330, 5,
+ 34, 0, 0, 330, 331, 5, 34, 0, 0, 331, 336, 1, 0, 0, 0, 332, 335, 3, 69,
+ 34, 0, 333, 335, 8, 12, 0, 0, 334, 332, 1, 0, 0, 0, 334, 333, 1, 0, 0,
+ 0, 335, 338, 1, 0, 0, 0, 336, 337, 1, 0, 0, 0, 336, 334, 1, 0, 0, 0, 337,
+ 339, 1, 0, 0, 0, 338, 336, 1, 0, 0, 0, 339, 340, 5, 34, 0, 0, 340, 341,
+ 5, 34, 0, 0, 341, 407, 5, 34, 0, 0, 342, 343, 5, 39, 0, 0, 343, 344, 5,
+ 39, 0, 0, 344, 345, 5, 39, 0, 0, 345, 350, 1, 0, 0, 0, 346, 349, 3, 69,
+ 34, 0, 347, 349, 8, 12, 0, 0, 348, 346, 1, 0, 0, 0, 348, 347, 1, 0, 0,
+ 0, 349, 352, 1, 0, 0, 0, 350, 351, 1, 0, 0, 0, 350, 348, 1, 0, 0, 0, 351,
+ 353, 1, 0, 0, 0, 352, 350, 1, 0, 0, 0, 353, 354, 5, 39, 0, 0, 354, 355,
+ 5, 39, 0, 0, 355, 407, 5, 39, 0, 0, 356, 357, 3, 67, 33, 0, 357, 361, 5,
+ 34, 0, 0, 358, 360, 8, 13, 0, 0, 359, 358, 1, 0, 0, 0, 360, 363, 1, 0,
+ 0, 0, 361, 359, 1, 0, 0, 0, 361, 362, 1, 0, 0, 0, 362, 364, 1, 0, 0, 0,
+ 363, 361, 1, 0, 0, 0, 364, 365, 5, 34, 0, 0, 365, 407, 1, 0, 0, 0, 366,
+ 367, 3, 67, 33, 0, 367, 371, 5, 39, 0, 0, 368, 370, 8, 14, 0, 0, 369, 368,
+ 1, 0, 0, 0, 370, 373, 1, 0, 0, 0, 371, 369, 1, 0, 0, 0, 371, 372, 1, 0,
+ 0, 0, 372, 374, 1, 0, 0, 0, 373, 371, 1, 0, 0, 0, 374, 375, 5, 39, 0, 0,
+ 375, 407, 1, 0, 0, 0, 376, 377, 3, 67, 33, 0, 377, 378, 5, 34, 0, 0, 378,
+ 379, 5, 34, 0, 0, 379, 380, 5, 34, 0, 0, 380, 384, 1, 0, 0, 0, 381, 383,
+ 9, 0, 0, 0, 382, 381, 1, 0, 0, 0, 383, 386, 1, 0, 0, 0, 384, 385, 1, 0,
+ 0, 0, 384, 382, 1, 0, 0, 0, 385, 387, 1, 0, 0, 0, 386, 384, 1, 0, 0, 0,
+ 387, 388, 5, 34, 0, 0, 388, 389, 5, 34, 0, 0, 389, 390, 5, 34, 0, 0, 390,
+ 407, 1, 0, 0, 0, 391, 392, 3, 67, 33, 0, 392, 393, 5, 39, 0, 0, 393, 394,
+ 5, 39, 0, 0, 394, 395, 5, 39, 0, 0, 395, 399, 1, 0, 0, 0, 396, 398, 9,
+ 0, 0, 0, 397, 396, 1, 0, 0, 0, 398, 401, 1, 0, 0, 0, 399, 400, 1, 0, 0,
+ 0, 399, 397, 1, 0, 0, 0, 400, 402, 1, 0, 0, 0, 401, 399, 1, 0, 0, 0, 402,
+ 403, 5, 39, 0, 0, 403, 404, 5, 39, 0, 0, 404, 405, 5, 39, 0, 0, 405, 407,
+ 1, 0, 0, 0, 406, 310, 1, 0, 0, 0, 406, 319, 1, 0, 0, 0, 406, 328, 1, 0,
+ 0, 0, 406, 342, 1, 0, 0, 0, 406, 356, 1, 0, 0, 0, 406, 366, 1, 0, 0, 0,
+ 406, 376, 1, 0, 0, 0, 406, 391, 1, 0, 0, 0, 407, 90, 1, 0, 0, 0, 408, 409,
+ 7, 15, 0, 0, 409, 410, 3, 89, 44, 0, 410, 92, 1, 0, 0, 0, 411, 414, 3,
+ 59, 29, 0, 412, 414, 5, 95, 0, 0, 413, 411, 1, 0, 0, 0, 413, 412, 1, 0,
+ 0, 0, 414, 420, 1, 0, 0, 0, 415, 419, 3, 59, 29, 0, 416, 419, 3, 61, 30,
+ 0, 417, 419, 5, 95, 0, 0, 418, 415, 1, 0, 0, 0, 418, 416, 1, 0, 0, 0, 418,
+ 417, 1, 0, 0, 0, 419, 422, 1, 0, 0, 0, 420, 418, 1, 0, 0, 0, 420, 421,
+ 1, 0, 0, 0, 421, 94, 1, 0, 0, 0, 422, 420, 1, 0, 0, 0, 36, 0, 176, 181,
+ 191, 224, 229, 239, 247, 253, 256, 261, 269, 272, 274, 279, 287, 289, 294,
+ 304, 308, 313, 315, 322, 324, 334, 336, 348, 350, 361, 371, 384, 399, 406,
+ 413, 418, 420, 1, 0, 1, 0,
+}
+ deserializer := antlr.NewATNDeserializer(nil)
+ staticData.atn = deserializer.Deserialize(staticData.serializedATN)
+ atn := staticData.atn
+ staticData.decisionToDFA = make([]*antlr.DFA, len(atn.DecisionToState))
+ decisionToDFA := staticData.decisionToDFA
+ for index, state := range atn.DecisionToState {
+ decisionToDFA[index] = antlr.NewDFA(state, index)
+ }
}
// CELLexerInit initializes any static state used to implement CELLexer. By default the
@@ -282,22 +280,22 @@ func cellexerLexerInit() {
// NewCELLexer(). You can call this function if you wish to initialize the static state ahead
// of time.
func CELLexerInit() {
- staticData := &cellexerLexerStaticData
- staticData.once.Do(cellexerLexerInit)
+ staticData := &CELLexerLexerStaticData
+ staticData.once.Do(cellexerLexerInit)
}
// NewCELLexer produces a new lexer instance for the optional input antlr.CharStream.
func NewCELLexer(input antlr.CharStream) *CELLexer {
- CELLexerInit()
+ CELLexerInit()
l := new(CELLexer)
l.BaseLexer = antlr.NewBaseLexer(input)
- staticData := &cellexerLexerStaticData
- l.Interpreter = antlr.NewLexerATNSimulator(l, staticData.atn, staticData.decisionToDFA, staticData.predictionContextCache)
- l.channelNames = staticData.channelNames
- l.modeNames = staticData.modeNames
- l.RuleNames = staticData.ruleNames
- l.LiteralNames = staticData.literalNames
- l.SymbolicNames = staticData.symbolicNames
+ staticData := &CELLexerLexerStaticData
+ l.Interpreter = antlr.NewLexerATNSimulator(l, staticData.atn, staticData.decisionToDFA, staticData.PredictionContextCache)
+ l.channelNames = staticData.ChannelNames
+ l.modeNames = staticData.ModeNames
+ l.RuleNames = staticData.RuleNames
+ l.LiteralNames = staticData.LiteralNames
+ l.SymbolicNames = staticData.SymbolicNames
l.GrammarFileName = "CEL.g4"
// TODO: l.EOF = antlr.TokenEOF
@@ -306,40 +304,41 @@ func NewCELLexer(input antlr.CharStream) *CELLexer {
// CELLexer tokens.
const (
- CELLexerEQUALS = 1
- CELLexerNOT_EQUALS = 2
- CELLexerIN = 3
- CELLexerLESS = 4
- CELLexerLESS_EQUALS = 5
+ CELLexerEQUALS = 1
+ CELLexerNOT_EQUALS = 2
+ CELLexerIN = 3
+ CELLexerLESS = 4
+ CELLexerLESS_EQUALS = 5
CELLexerGREATER_EQUALS = 6
- CELLexerGREATER = 7
- CELLexerLOGICAL_AND = 8
- CELLexerLOGICAL_OR = 9
- CELLexerLBRACKET = 10
- CELLexerRPRACKET = 11
- CELLexerLBRACE = 12
- CELLexerRBRACE = 13
- CELLexerLPAREN = 14
- CELLexerRPAREN = 15
- CELLexerDOT = 16
- CELLexerCOMMA = 17
- CELLexerMINUS = 18
- CELLexerEXCLAM = 19
- CELLexerQUESTIONMARK = 20
- CELLexerCOLON = 21
- CELLexerPLUS = 22
- CELLexerSTAR = 23
- CELLexerSLASH = 24
- CELLexerPERCENT = 25
- CELLexerCEL_TRUE = 26
- CELLexerCEL_FALSE = 27
- CELLexerNUL = 28
- CELLexerWHITESPACE = 29
- CELLexerCOMMENT = 30
- CELLexerNUM_FLOAT = 31
- CELLexerNUM_INT = 32
- CELLexerNUM_UINT = 33
- CELLexerSTRING = 34
- CELLexerBYTES = 35
- CELLexerIDENTIFIER = 36
+ CELLexerGREATER = 7
+ CELLexerLOGICAL_AND = 8
+ CELLexerLOGICAL_OR = 9
+ CELLexerLBRACKET = 10
+ CELLexerRPRACKET = 11
+ CELLexerLBRACE = 12
+ CELLexerRBRACE = 13
+ CELLexerLPAREN = 14
+ CELLexerRPAREN = 15
+ CELLexerDOT = 16
+ CELLexerCOMMA = 17
+ CELLexerMINUS = 18
+ CELLexerEXCLAM = 19
+ CELLexerQUESTIONMARK = 20
+ CELLexerCOLON = 21
+ CELLexerPLUS = 22
+ CELLexerSTAR = 23
+ CELLexerSLASH = 24
+ CELLexerPERCENT = 25
+ CELLexerCEL_TRUE = 26
+ CELLexerCEL_FALSE = 27
+ CELLexerNUL = 28
+ CELLexerWHITESPACE = 29
+ CELLexerCOMMENT = 30
+ CELLexerNUM_FLOAT = 31
+ CELLexerNUM_INT = 32
+ CELLexerNUM_UINT = 33
+ CELLexerSTRING = 34
+ CELLexerBYTES = 35
+ CELLexerIDENTIFIER = 36
)
+
diff --git a/vendor/github.com/google/cel-go/parser/gen/cel_listener.go b/vendor/github.com/google/cel-go/parser/gen/cel_listener.go
index 73b7f1d..22dc997 100644
--- a/vendor/github.com/google/cel-go/parser/gen/cel_listener.go
+++ b/vendor/github.com/google/cel-go/parser/gen/cel_listener.go
@@ -1,7 +1,8 @@
-// Code generated from /Users/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.12.0. DO NOT EDIT.
+// Code generated from /usr/local/google/home/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.13.1. DO NOT EDIT.
package gen // CEL
-import "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+import "github.com/antlr4-go/antlr/v4"
+
// CELListener is a complete listener for a parse tree produced by CELParser.
type CELListener interface {
diff --git a/vendor/github.com/google/cel-go/parser/gen/cel_parser.go b/vendor/github.com/google/cel-go/parser/gen/cel_parser.go
index 0cb6c8e..35334af 100644
--- a/vendor/github.com/google/cel-go/parser/gen/cel_parser.go
+++ b/vendor/github.com/google/cel-go/parser/gen/cel_parser.go
@@ -1,12 +1,12 @@
-// Code generated from /Users/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.12.0. DO NOT EDIT.
+// Code generated from /usr/local/google/home/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.13.1. DO NOT EDIT.
package gen // CEL
import (
"fmt"
"strconv"
- "sync"
+ "sync"
- "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+ "github.com/antlr4-go/antlr/v4"
)
// Suppress unused import errors
@@ -14,166 +14,167 @@ var _ = fmt.Printf
var _ = strconv.Itoa
var _ = sync.Once{}
+
type CELParser struct {
*antlr.BaseParser
}
-var celParserStaticData struct {
- once sync.Once
- serializedATN []int32
- literalNames []string
- symbolicNames []string
- ruleNames []string
- predictionContextCache *antlr.PredictionContextCache
- atn *antlr.ATN
- decisionToDFA []*antlr.DFA
+var CELParserStaticData struct {
+ once sync.Once
+ serializedATN []int32
+ LiteralNames []string
+ SymbolicNames []string
+ RuleNames []string
+ PredictionContextCache *antlr.PredictionContextCache
+ atn *antlr.ATN
+ decisionToDFA []*antlr.DFA
}
func celParserInit() {
- staticData := &celParserStaticData
- staticData.literalNames = []string{
- "", "'=='", "'!='", "'in'", "'<'", "'<='", "'>='", "'>'", "'&&'", "'||'",
- "'['", "']'", "'{'", "'}'", "'('", "')'", "'.'", "','", "'-'", "'!'",
- "'?'", "':'", "'+'", "'*'", "'/'", "'%'", "'true'", "'false'", "'null'",
- }
- staticData.symbolicNames = []string{
- "", "EQUALS", "NOT_EQUALS", "IN", "LESS", "LESS_EQUALS", "GREATER_EQUALS",
- "GREATER", "LOGICAL_AND", "LOGICAL_OR", "LBRACKET", "RPRACKET", "LBRACE",
- "RBRACE", "LPAREN", "RPAREN", "DOT", "COMMA", "MINUS", "EXCLAM", "QUESTIONMARK",
- "COLON", "PLUS", "STAR", "SLASH", "PERCENT", "CEL_TRUE", "CEL_FALSE",
- "NUL", "WHITESPACE", "COMMENT", "NUM_FLOAT", "NUM_INT", "NUM_UINT",
- "STRING", "BYTES", "IDENTIFIER",
- }
- staticData.ruleNames = []string{
- "start", "expr", "conditionalOr", "conditionalAnd", "relation", "calc",
- "unary", "member", "primary", "exprList", "listInit", "fieldInitializerList",
- "optField", "mapInitializerList", "optExpr", "literal",
- }
- staticData.predictionContextCache = antlr.NewPredictionContextCache()
- staticData.serializedATN = []int32{
- 4, 1, 36, 251, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7,
- 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7,
- 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15,
- 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 42, 8, 1, 1,
- 2, 1, 2, 1, 2, 5, 2, 47, 8, 2, 10, 2, 12, 2, 50, 9, 2, 1, 3, 1, 3, 1, 3,
- 5, 3, 55, 8, 3, 10, 3, 12, 3, 58, 9, 3, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1,
- 4, 5, 4, 66, 8, 4, 10, 4, 12, 4, 69, 9, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5,
- 1, 5, 1, 5, 1, 5, 1, 5, 5, 5, 80, 8, 5, 10, 5, 12, 5, 83, 9, 5, 1, 6, 1,
- 6, 4, 6, 87, 8, 6, 11, 6, 12, 6, 88, 1, 6, 1, 6, 4, 6, 93, 8, 6, 11, 6,
- 12, 6, 94, 1, 6, 3, 6, 98, 8, 6, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 3,
- 7, 106, 8, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 3, 7, 114, 8, 7, 1, 7,
- 1, 7, 1, 7, 1, 7, 3, 7, 120, 8, 7, 1, 7, 1, 7, 1, 7, 5, 7, 125, 8, 7, 10,
- 7, 12, 7, 128, 9, 7, 1, 8, 3, 8, 131, 8, 8, 1, 8, 1, 8, 1, 8, 3, 8, 136,
- 8, 8, 1, 8, 3, 8, 139, 8, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 3, 8,
- 147, 8, 8, 1, 8, 3, 8, 150, 8, 8, 1, 8, 1, 8, 1, 8, 3, 8, 155, 8, 8, 1,
- 8, 3, 8, 158, 8, 8, 1, 8, 1, 8, 3, 8, 162, 8, 8, 1, 8, 1, 8, 1, 8, 5, 8,
- 167, 8, 8, 10, 8, 12, 8, 170, 9, 8, 1, 8, 1, 8, 3, 8, 174, 8, 8, 1, 8,
- 3, 8, 177, 8, 8, 1, 8, 1, 8, 3, 8, 181, 8, 8, 1, 9, 1, 9, 1, 9, 5, 9, 186,
- 8, 9, 10, 9, 12, 9, 189, 9, 9, 1, 10, 1, 10, 1, 10, 5, 10, 194, 8, 10,
- 10, 10, 12, 10, 197, 9, 10, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1,
- 11, 1, 11, 5, 11, 207, 8, 11, 10, 11, 12, 11, 210, 9, 11, 1, 12, 3, 12,
- 213, 8, 12, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1,
- 13, 1, 13, 5, 13, 225, 8, 13, 10, 13, 12, 13, 228, 9, 13, 1, 14, 3, 14,
- 231, 8, 14, 1, 14, 1, 14, 1, 15, 3, 15, 236, 8, 15, 1, 15, 1, 15, 1, 15,
- 3, 15, 241, 8, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 3, 15, 249,
- 8, 15, 1, 15, 0, 3, 8, 10, 14, 16, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20,
- 22, 24, 26, 28, 30, 0, 3, 1, 0, 1, 7, 1, 0, 23, 25, 2, 0, 18, 18, 22, 22,
- 281, 0, 32, 1, 0, 0, 0, 2, 35, 1, 0, 0, 0, 4, 43, 1, 0, 0, 0, 6, 51, 1,
- 0, 0, 0, 8, 59, 1, 0, 0, 0, 10, 70, 1, 0, 0, 0, 12, 97, 1, 0, 0, 0, 14,
- 99, 1, 0, 0, 0, 16, 180, 1, 0, 0, 0, 18, 182, 1, 0, 0, 0, 20, 190, 1, 0,
- 0, 0, 22, 198, 1, 0, 0, 0, 24, 212, 1, 0, 0, 0, 26, 216, 1, 0, 0, 0, 28,
- 230, 1, 0, 0, 0, 30, 248, 1, 0, 0, 0, 32, 33, 3, 2, 1, 0, 33, 34, 5, 0,
- 0, 1, 34, 1, 1, 0, 0, 0, 35, 41, 3, 4, 2, 0, 36, 37, 5, 20, 0, 0, 37, 38,
- 3, 4, 2, 0, 38, 39, 5, 21, 0, 0, 39, 40, 3, 2, 1, 0, 40, 42, 1, 0, 0, 0,
- 41, 36, 1, 0, 0, 0, 41, 42, 1, 0, 0, 0, 42, 3, 1, 0, 0, 0, 43, 48, 3, 6,
- 3, 0, 44, 45, 5, 9, 0, 0, 45, 47, 3, 6, 3, 0, 46, 44, 1, 0, 0, 0, 47, 50,
- 1, 0, 0, 0, 48, 46, 1, 0, 0, 0, 48, 49, 1, 0, 0, 0, 49, 5, 1, 0, 0, 0,
- 50, 48, 1, 0, 0, 0, 51, 56, 3, 8, 4, 0, 52, 53, 5, 8, 0, 0, 53, 55, 3,
- 8, 4, 0, 54, 52, 1, 0, 0, 0, 55, 58, 1, 0, 0, 0, 56, 54, 1, 0, 0, 0, 56,
- 57, 1, 0, 0, 0, 57, 7, 1, 0, 0, 0, 58, 56, 1, 0, 0, 0, 59, 60, 6, 4, -1,
- 0, 60, 61, 3, 10, 5, 0, 61, 67, 1, 0, 0, 0, 62, 63, 10, 1, 0, 0, 63, 64,
- 7, 0, 0, 0, 64, 66, 3, 8, 4, 2, 65, 62, 1, 0, 0, 0, 66, 69, 1, 0, 0, 0,
- 67, 65, 1, 0, 0, 0, 67, 68, 1, 0, 0, 0, 68, 9, 1, 0, 0, 0, 69, 67, 1, 0,
- 0, 0, 70, 71, 6, 5, -1, 0, 71, 72, 3, 12, 6, 0, 72, 81, 1, 0, 0, 0, 73,
- 74, 10, 2, 0, 0, 74, 75, 7, 1, 0, 0, 75, 80, 3, 10, 5, 3, 76, 77, 10, 1,
- 0, 0, 77, 78, 7, 2, 0, 0, 78, 80, 3, 10, 5, 2, 79, 73, 1, 0, 0, 0, 79,
- 76, 1, 0, 0, 0, 80, 83, 1, 0, 0, 0, 81, 79, 1, 0, 0, 0, 81, 82, 1, 0, 0,
- 0, 82, 11, 1, 0, 0, 0, 83, 81, 1, 0, 0, 0, 84, 98, 3, 14, 7, 0, 85, 87,
- 5, 19, 0, 0, 86, 85, 1, 0, 0, 0, 87, 88, 1, 0, 0, 0, 88, 86, 1, 0, 0, 0,
- 88, 89, 1, 0, 0, 0, 89, 90, 1, 0, 0, 0, 90, 98, 3, 14, 7, 0, 91, 93, 5,
- 18, 0, 0, 92, 91, 1, 0, 0, 0, 93, 94, 1, 0, 0, 0, 94, 92, 1, 0, 0, 0, 94,
- 95, 1, 0, 0, 0, 95, 96, 1, 0, 0, 0, 96, 98, 3, 14, 7, 0, 97, 84, 1, 0,
- 0, 0, 97, 86, 1, 0, 0, 0, 97, 92, 1, 0, 0, 0, 98, 13, 1, 0, 0, 0, 99, 100,
- 6, 7, -1, 0, 100, 101, 3, 16, 8, 0, 101, 126, 1, 0, 0, 0, 102, 103, 10,
- 3, 0, 0, 103, 105, 5, 16, 0, 0, 104, 106, 5, 20, 0, 0, 105, 104, 1, 0,
- 0, 0, 105, 106, 1, 0, 0, 0, 106, 107, 1, 0, 0, 0, 107, 125, 5, 36, 0, 0,
- 108, 109, 10, 2, 0, 0, 109, 110, 5, 16, 0, 0, 110, 111, 5, 36, 0, 0, 111,
- 113, 5, 14, 0, 0, 112, 114, 3, 18, 9, 0, 113, 112, 1, 0, 0, 0, 113, 114,
- 1, 0, 0, 0, 114, 115, 1, 0, 0, 0, 115, 125, 5, 15, 0, 0, 116, 117, 10,
- 1, 0, 0, 117, 119, 5, 10, 0, 0, 118, 120, 5, 20, 0, 0, 119, 118, 1, 0,
- 0, 0, 119, 120, 1, 0, 0, 0, 120, 121, 1, 0, 0, 0, 121, 122, 3, 2, 1, 0,
- 122, 123, 5, 11, 0, 0, 123, 125, 1, 0, 0, 0, 124, 102, 1, 0, 0, 0, 124,
- 108, 1, 0, 0, 0, 124, 116, 1, 0, 0, 0, 125, 128, 1, 0, 0, 0, 126, 124,
- 1, 0, 0, 0, 126, 127, 1, 0, 0, 0, 127, 15, 1, 0, 0, 0, 128, 126, 1, 0,
- 0, 0, 129, 131, 5, 16, 0, 0, 130, 129, 1, 0, 0, 0, 130, 131, 1, 0, 0, 0,
- 131, 132, 1, 0, 0, 0, 132, 138, 5, 36, 0, 0, 133, 135, 5, 14, 0, 0, 134,
- 136, 3, 18, 9, 0, 135, 134, 1, 0, 0, 0, 135, 136, 1, 0, 0, 0, 136, 137,
- 1, 0, 0, 0, 137, 139, 5, 15, 0, 0, 138, 133, 1, 0, 0, 0, 138, 139, 1, 0,
- 0, 0, 139, 181, 1, 0, 0, 0, 140, 141, 5, 14, 0, 0, 141, 142, 3, 2, 1, 0,
- 142, 143, 5, 15, 0, 0, 143, 181, 1, 0, 0, 0, 144, 146, 5, 10, 0, 0, 145,
- 147, 3, 20, 10, 0, 146, 145, 1, 0, 0, 0, 146, 147, 1, 0, 0, 0, 147, 149,
- 1, 0, 0, 0, 148, 150, 5, 17, 0, 0, 149, 148, 1, 0, 0, 0, 149, 150, 1, 0,
- 0, 0, 150, 151, 1, 0, 0, 0, 151, 181, 5, 11, 0, 0, 152, 154, 5, 12, 0,
- 0, 153, 155, 3, 26, 13, 0, 154, 153, 1, 0, 0, 0, 154, 155, 1, 0, 0, 0,
- 155, 157, 1, 0, 0, 0, 156, 158, 5, 17, 0, 0, 157, 156, 1, 0, 0, 0, 157,
- 158, 1, 0, 0, 0, 158, 159, 1, 0, 0, 0, 159, 181, 5, 13, 0, 0, 160, 162,
- 5, 16, 0, 0, 161, 160, 1, 0, 0, 0, 161, 162, 1, 0, 0, 0, 162, 163, 1, 0,
- 0, 0, 163, 168, 5, 36, 0, 0, 164, 165, 5, 16, 0, 0, 165, 167, 5, 36, 0,
- 0, 166, 164, 1, 0, 0, 0, 167, 170, 1, 0, 0, 0, 168, 166, 1, 0, 0, 0, 168,
- 169, 1, 0, 0, 0, 169, 171, 1, 0, 0, 0, 170, 168, 1, 0, 0, 0, 171, 173,
- 5, 12, 0, 0, 172, 174, 3, 22, 11, 0, 173, 172, 1, 0, 0, 0, 173, 174, 1,
- 0, 0, 0, 174, 176, 1, 0, 0, 0, 175, 177, 5, 17, 0, 0, 176, 175, 1, 0, 0,
- 0, 176, 177, 1, 0, 0, 0, 177, 178, 1, 0, 0, 0, 178, 181, 5, 13, 0, 0, 179,
- 181, 3, 30, 15, 0, 180, 130, 1, 0, 0, 0, 180, 140, 1, 0, 0, 0, 180, 144,
- 1, 0, 0, 0, 180, 152, 1, 0, 0, 0, 180, 161, 1, 0, 0, 0, 180, 179, 1, 0,
- 0, 0, 181, 17, 1, 0, 0, 0, 182, 187, 3, 2, 1, 0, 183, 184, 5, 17, 0, 0,
- 184, 186, 3, 2, 1, 0, 185, 183, 1, 0, 0, 0, 186, 189, 1, 0, 0, 0, 187,
- 185, 1, 0, 0, 0, 187, 188, 1, 0, 0, 0, 188, 19, 1, 0, 0, 0, 189, 187, 1,
- 0, 0, 0, 190, 195, 3, 28, 14, 0, 191, 192, 5, 17, 0, 0, 192, 194, 3, 28,
- 14, 0, 193, 191, 1, 0, 0, 0, 194, 197, 1, 0, 0, 0, 195, 193, 1, 0, 0, 0,
- 195, 196, 1, 0, 0, 0, 196, 21, 1, 0, 0, 0, 197, 195, 1, 0, 0, 0, 198, 199,
- 3, 24, 12, 0, 199, 200, 5, 21, 0, 0, 200, 208, 3, 2, 1, 0, 201, 202, 5,
- 17, 0, 0, 202, 203, 3, 24, 12, 0, 203, 204, 5, 21, 0, 0, 204, 205, 3, 2,
- 1, 0, 205, 207, 1, 0, 0, 0, 206, 201, 1, 0, 0, 0, 207, 210, 1, 0, 0, 0,
- 208, 206, 1, 0, 0, 0, 208, 209, 1, 0, 0, 0, 209, 23, 1, 0, 0, 0, 210, 208,
- 1, 0, 0, 0, 211, 213, 5, 20, 0, 0, 212, 211, 1, 0, 0, 0, 212, 213, 1, 0,
- 0, 0, 213, 214, 1, 0, 0, 0, 214, 215, 5, 36, 0, 0, 215, 25, 1, 0, 0, 0,
- 216, 217, 3, 28, 14, 0, 217, 218, 5, 21, 0, 0, 218, 226, 3, 2, 1, 0, 219,
- 220, 5, 17, 0, 0, 220, 221, 3, 28, 14, 0, 221, 222, 5, 21, 0, 0, 222, 223,
- 3, 2, 1, 0, 223, 225, 1, 0, 0, 0, 224, 219, 1, 0, 0, 0, 225, 228, 1, 0,
- 0, 0, 226, 224, 1, 0, 0, 0, 226, 227, 1, 0, 0, 0, 227, 27, 1, 0, 0, 0,
- 228, 226, 1, 0, 0, 0, 229, 231, 5, 20, 0, 0, 230, 229, 1, 0, 0, 0, 230,
- 231, 1, 0, 0, 0, 231, 232, 1, 0, 0, 0, 232, 233, 3, 2, 1, 0, 233, 29, 1,
- 0, 0, 0, 234, 236, 5, 18, 0, 0, 235, 234, 1, 0, 0, 0, 235, 236, 1, 0, 0,
- 0, 236, 237, 1, 0, 0, 0, 237, 249, 5, 32, 0, 0, 238, 249, 5, 33, 0, 0,
- 239, 241, 5, 18, 0, 0, 240, 239, 1, 0, 0, 0, 240, 241, 1, 0, 0, 0, 241,
- 242, 1, 0, 0, 0, 242, 249, 5, 31, 0, 0, 243, 249, 5, 34, 0, 0, 244, 249,
- 5, 35, 0, 0, 245, 249, 5, 26, 0, 0, 246, 249, 5, 27, 0, 0, 247, 249, 5,
- 28, 0, 0, 248, 235, 1, 0, 0, 0, 248, 238, 1, 0, 0, 0, 248, 240, 1, 0, 0,
- 0, 248, 243, 1, 0, 0, 0, 248, 244, 1, 0, 0, 0, 248, 245, 1, 0, 0, 0, 248,
- 246, 1, 0, 0, 0, 248, 247, 1, 0, 0, 0, 249, 31, 1, 0, 0, 0, 35, 41, 48,
- 56, 67, 79, 81, 88, 94, 97, 105, 113, 119, 124, 126, 130, 135, 138, 146,
- 149, 154, 157, 161, 168, 173, 176, 180, 187, 195, 208, 212, 226, 230, 235,
- 240, 248,
- }
- deserializer := antlr.NewATNDeserializer(nil)
- staticData.atn = deserializer.Deserialize(staticData.serializedATN)
- atn := staticData.atn
- staticData.decisionToDFA = make([]*antlr.DFA, len(atn.DecisionToState))
- decisionToDFA := staticData.decisionToDFA
- for index, state := range atn.DecisionToState {
- decisionToDFA[index] = antlr.NewDFA(state, index)
- }
+ staticData := &CELParserStaticData
+ staticData.LiteralNames = []string{
+ "", "'=='", "'!='", "'in'", "'<'", "'<='", "'>='", "'>'", "'&&'", "'||'",
+ "'['", "']'", "'{'", "'}'", "'('", "')'", "'.'", "','", "'-'", "'!'",
+ "'?'", "':'", "'+'", "'*'", "'/'", "'%'", "'true'", "'false'", "'null'",
+ }
+ staticData.SymbolicNames = []string{
+ "", "EQUALS", "NOT_EQUALS", "IN", "LESS", "LESS_EQUALS", "GREATER_EQUALS",
+ "GREATER", "LOGICAL_AND", "LOGICAL_OR", "LBRACKET", "RPRACKET", "LBRACE",
+ "RBRACE", "LPAREN", "RPAREN", "DOT", "COMMA", "MINUS", "EXCLAM", "QUESTIONMARK",
+ "COLON", "PLUS", "STAR", "SLASH", "PERCENT", "CEL_TRUE", "CEL_FALSE",
+ "NUL", "WHITESPACE", "COMMENT", "NUM_FLOAT", "NUM_INT", "NUM_UINT",
+ "STRING", "BYTES", "IDENTIFIER",
+ }
+ staticData.RuleNames = []string{
+ "start", "expr", "conditionalOr", "conditionalAnd", "relation", "calc",
+ "unary", "member", "primary", "exprList", "listInit", "fieldInitializerList",
+ "optField", "mapInitializerList", "optExpr", "literal",
+ }
+ staticData.PredictionContextCache = antlr.NewPredictionContextCache()
+ staticData.serializedATN = []int32{
+ 4, 1, 36, 251, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7,
+ 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7,
+ 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15,
+ 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 42, 8, 1, 1,
+ 2, 1, 2, 1, 2, 5, 2, 47, 8, 2, 10, 2, 12, 2, 50, 9, 2, 1, 3, 1, 3, 1, 3,
+ 5, 3, 55, 8, 3, 10, 3, 12, 3, 58, 9, 3, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1,
+ 4, 5, 4, 66, 8, 4, 10, 4, 12, 4, 69, 9, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5,
+ 1, 5, 1, 5, 1, 5, 1, 5, 5, 5, 80, 8, 5, 10, 5, 12, 5, 83, 9, 5, 1, 6, 1,
+ 6, 4, 6, 87, 8, 6, 11, 6, 12, 6, 88, 1, 6, 1, 6, 4, 6, 93, 8, 6, 11, 6,
+ 12, 6, 94, 1, 6, 3, 6, 98, 8, 6, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 3,
+ 7, 106, 8, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 3, 7, 114, 8, 7, 1, 7,
+ 1, 7, 1, 7, 1, 7, 3, 7, 120, 8, 7, 1, 7, 1, 7, 1, 7, 5, 7, 125, 8, 7, 10,
+ 7, 12, 7, 128, 9, 7, 1, 8, 3, 8, 131, 8, 8, 1, 8, 1, 8, 1, 8, 3, 8, 136,
+ 8, 8, 1, 8, 3, 8, 139, 8, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 3, 8,
+ 147, 8, 8, 1, 8, 3, 8, 150, 8, 8, 1, 8, 1, 8, 1, 8, 3, 8, 155, 8, 8, 1,
+ 8, 3, 8, 158, 8, 8, 1, 8, 1, 8, 3, 8, 162, 8, 8, 1, 8, 1, 8, 1, 8, 5, 8,
+ 167, 8, 8, 10, 8, 12, 8, 170, 9, 8, 1, 8, 1, 8, 3, 8, 174, 8, 8, 1, 8,
+ 3, 8, 177, 8, 8, 1, 8, 1, 8, 3, 8, 181, 8, 8, 1, 9, 1, 9, 1, 9, 5, 9, 186,
+ 8, 9, 10, 9, 12, 9, 189, 9, 9, 1, 10, 1, 10, 1, 10, 5, 10, 194, 8, 10,
+ 10, 10, 12, 10, 197, 9, 10, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1,
+ 11, 1, 11, 5, 11, 207, 8, 11, 10, 11, 12, 11, 210, 9, 11, 1, 12, 3, 12,
+ 213, 8, 12, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1,
+ 13, 1, 13, 5, 13, 225, 8, 13, 10, 13, 12, 13, 228, 9, 13, 1, 14, 3, 14,
+ 231, 8, 14, 1, 14, 1, 14, 1, 15, 3, 15, 236, 8, 15, 1, 15, 1, 15, 1, 15,
+ 3, 15, 241, 8, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 3, 15, 249,
+ 8, 15, 1, 15, 0, 3, 8, 10, 14, 16, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20,
+ 22, 24, 26, 28, 30, 0, 3, 1, 0, 1, 7, 1, 0, 23, 25, 2, 0, 18, 18, 22, 22,
+ 281, 0, 32, 1, 0, 0, 0, 2, 35, 1, 0, 0, 0, 4, 43, 1, 0, 0, 0, 6, 51, 1,
+ 0, 0, 0, 8, 59, 1, 0, 0, 0, 10, 70, 1, 0, 0, 0, 12, 97, 1, 0, 0, 0, 14,
+ 99, 1, 0, 0, 0, 16, 180, 1, 0, 0, 0, 18, 182, 1, 0, 0, 0, 20, 190, 1, 0,
+ 0, 0, 22, 198, 1, 0, 0, 0, 24, 212, 1, 0, 0, 0, 26, 216, 1, 0, 0, 0, 28,
+ 230, 1, 0, 0, 0, 30, 248, 1, 0, 0, 0, 32, 33, 3, 2, 1, 0, 33, 34, 5, 0,
+ 0, 1, 34, 1, 1, 0, 0, 0, 35, 41, 3, 4, 2, 0, 36, 37, 5, 20, 0, 0, 37, 38,
+ 3, 4, 2, 0, 38, 39, 5, 21, 0, 0, 39, 40, 3, 2, 1, 0, 40, 42, 1, 0, 0, 0,
+ 41, 36, 1, 0, 0, 0, 41, 42, 1, 0, 0, 0, 42, 3, 1, 0, 0, 0, 43, 48, 3, 6,
+ 3, 0, 44, 45, 5, 9, 0, 0, 45, 47, 3, 6, 3, 0, 46, 44, 1, 0, 0, 0, 47, 50,
+ 1, 0, 0, 0, 48, 46, 1, 0, 0, 0, 48, 49, 1, 0, 0, 0, 49, 5, 1, 0, 0, 0,
+ 50, 48, 1, 0, 0, 0, 51, 56, 3, 8, 4, 0, 52, 53, 5, 8, 0, 0, 53, 55, 3,
+ 8, 4, 0, 54, 52, 1, 0, 0, 0, 55, 58, 1, 0, 0, 0, 56, 54, 1, 0, 0, 0, 56,
+ 57, 1, 0, 0, 0, 57, 7, 1, 0, 0, 0, 58, 56, 1, 0, 0, 0, 59, 60, 6, 4, -1,
+ 0, 60, 61, 3, 10, 5, 0, 61, 67, 1, 0, 0, 0, 62, 63, 10, 1, 0, 0, 63, 64,
+ 7, 0, 0, 0, 64, 66, 3, 8, 4, 2, 65, 62, 1, 0, 0, 0, 66, 69, 1, 0, 0, 0,
+ 67, 65, 1, 0, 0, 0, 67, 68, 1, 0, 0, 0, 68, 9, 1, 0, 0, 0, 69, 67, 1, 0,
+ 0, 0, 70, 71, 6, 5, -1, 0, 71, 72, 3, 12, 6, 0, 72, 81, 1, 0, 0, 0, 73,
+ 74, 10, 2, 0, 0, 74, 75, 7, 1, 0, 0, 75, 80, 3, 10, 5, 3, 76, 77, 10, 1,
+ 0, 0, 77, 78, 7, 2, 0, 0, 78, 80, 3, 10, 5, 2, 79, 73, 1, 0, 0, 0, 79,
+ 76, 1, 0, 0, 0, 80, 83, 1, 0, 0, 0, 81, 79, 1, 0, 0, 0, 81, 82, 1, 0, 0,
+ 0, 82, 11, 1, 0, 0, 0, 83, 81, 1, 0, 0, 0, 84, 98, 3, 14, 7, 0, 85, 87,
+ 5, 19, 0, 0, 86, 85, 1, 0, 0, 0, 87, 88, 1, 0, 0, 0, 88, 86, 1, 0, 0, 0,
+ 88, 89, 1, 0, 0, 0, 89, 90, 1, 0, 0, 0, 90, 98, 3, 14, 7, 0, 91, 93, 5,
+ 18, 0, 0, 92, 91, 1, 0, 0, 0, 93, 94, 1, 0, 0, 0, 94, 92, 1, 0, 0, 0, 94,
+ 95, 1, 0, 0, 0, 95, 96, 1, 0, 0, 0, 96, 98, 3, 14, 7, 0, 97, 84, 1, 0,
+ 0, 0, 97, 86, 1, 0, 0, 0, 97, 92, 1, 0, 0, 0, 98, 13, 1, 0, 0, 0, 99, 100,
+ 6, 7, -1, 0, 100, 101, 3, 16, 8, 0, 101, 126, 1, 0, 0, 0, 102, 103, 10,
+ 3, 0, 0, 103, 105, 5, 16, 0, 0, 104, 106, 5, 20, 0, 0, 105, 104, 1, 0,
+ 0, 0, 105, 106, 1, 0, 0, 0, 106, 107, 1, 0, 0, 0, 107, 125, 5, 36, 0, 0,
+ 108, 109, 10, 2, 0, 0, 109, 110, 5, 16, 0, 0, 110, 111, 5, 36, 0, 0, 111,
+ 113, 5, 14, 0, 0, 112, 114, 3, 18, 9, 0, 113, 112, 1, 0, 0, 0, 113, 114,
+ 1, 0, 0, 0, 114, 115, 1, 0, 0, 0, 115, 125, 5, 15, 0, 0, 116, 117, 10,
+ 1, 0, 0, 117, 119, 5, 10, 0, 0, 118, 120, 5, 20, 0, 0, 119, 118, 1, 0,
+ 0, 0, 119, 120, 1, 0, 0, 0, 120, 121, 1, 0, 0, 0, 121, 122, 3, 2, 1, 0,
+ 122, 123, 5, 11, 0, 0, 123, 125, 1, 0, 0, 0, 124, 102, 1, 0, 0, 0, 124,
+ 108, 1, 0, 0, 0, 124, 116, 1, 0, 0, 0, 125, 128, 1, 0, 0, 0, 126, 124,
+ 1, 0, 0, 0, 126, 127, 1, 0, 0, 0, 127, 15, 1, 0, 0, 0, 128, 126, 1, 0,
+ 0, 0, 129, 131, 5, 16, 0, 0, 130, 129, 1, 0, 0, 0, 130, 131, 1, 0, 0, 0,
+ 131, 132, 1, 0, 0, 0, 132, 138, 5, 36, 0, 0, 133, 135, 5, 14, 0, 0, 134,
+ 136, 3, 18, 9, 0, 135, 134, 1, 0, 0, 0, 135, 136, 1, 0, 0, 0, 136, 137,
+ 1, 0, 0, 0, 137, 139, 5, 15, 0, 0, 138, 133, 1, 0, 0, 0, 138, 139, 1, 0,
+ 0, 0, 139, 181, 1, 0, 0, 0, 140, 141, 5, 14, 0, 0, 141, 142, 3, 2, 1, 0,
+ 142, 143, 5, 15, 0, 0, 143, 181, 1, 0, 0, 0, 144, 146, 5, 10, 0, 0, 145,
+ 147, 3, 20, 10, 0, 146, 145, 1, 0, 0, 0, 146, 147, 1, 0, 0, 0, 147, 149,
+ 1, 0, 0, 0, 148, 150, 5, 17, 0, 0, 149, 148, 1, 0, 0, 0, 149, 150, 1, 0,
+ 0, 0, 150, 151, 1, 0, 0, 0, 151, 181, 5, 11, 0, 0, 152, 154, 5, 12, 0,
+ 0, 153, 155, 3, 26, 13, 0, 154, 153, 1, 0, 0, 0, 154, 155, 1, 0, 0, 0,
+ 155, 157, 1, 0, 0, 0, 156, 158, 5, 17, 0, 0, 157, 156, 1, 0, 0, 0, 157,
+ 158, 1, 0, 0, 0, 158, 159, 1, 0, 0, 0, 159, 181, 5, 13, 0, 0, 160, 162,
+ 5, 16, 0, 0, 161, 160, 1, 0, 0, 0, 161, 162, 1, 0, 0, 0, 162, 163, 1, 0,
+ 0, 0, 163, 168, 5, 36, 0, 0, 164, 165, 5, 16, 0, 0, 165, 167, 5, 36, 0,
+ 0, 166, 164, 1, 0, 0, 0, 167, 170, 1, 0, 0, 0, 168, 166, 1, 0, 0, 0, 168,
+ 169, 1, 0, 0, 0, 169, 171, 1, 0, 0, 0, 170, 168, 1, 0, 0, 0, 171, 173,
+ 5, 12, 0, 0, 172, 174, 3, 22, 11, 0, 173, 172, 1, 0, 0, 0, 173, 174, 1,
+ 0, 0, 0, 174, 176, 1, 0, 0, 0, 175, 177, 5, 17, 0, 0, 176, 175, 1, 0, 0,
+ 0, 176, 177, 1, 0, 0, 0, 177, 178, 1, 0, 0, 0, 178, 181, 5, 13, 0, 0, 179,
+ 181, 3, 30, 15, 0, 180, 130, 1, 0, 0, 0, 180, 140, 1, 0, 0, 0, 180, 144,
+ 1, 0, 0, 0, 180, 152, 1, 0, 0, 0, 180, 161, 1, 0, 0, 0, 180, 179, 1, 0,
+ 0, 0, 181, 17, 1, 0, 0, 0, 182, 187, 3, 2, 1, 0, 183, 184, 5, 17, 0, 0,
+ 184, 186, 3, 2, 1, 0, 185, 183, 1, 0, 0, 0, 186, 189, 1, 0, 0, 0, 187,
+ 185, 1, 0, 0, 0, 187, 188, 1, 0, 0, 0, 188, 19, 1, 0, 0, 0, 189, 187, 1,
+ 0, 0, 0, 190, 195, 3, 28, 14, 0, 191, 192, 5, 17, 0, 0, 192, 194, 3, 28,
+ 14, 0, 193, 191, 1, 0, 0, 0, 194, 197, 1, 0, 0, 0, 195, 193, 1, 0, 0, 0,
+ 195, 196, 1, 0, 0, 0, 196, 21, 1, 0, 0, 0, 197, 195, 1, 0, 0, 0, 198, 199,
+ 3, 24, 12, 0, 199, 200, 5, 21, 0, 0, 200, 208, 3, 2, 1, 0, 201, 202, 5,
+ 17, 0, 0, 202, 203, 3, 24, 12, 0, 203, 204, 5, 21, 0, 0, 204, 205, 3, 2,
+ 1, 0, 205, 207, 1, 0, 0, 0, 206, 201, 1, 0, 0, 0, 207, 210, 1, 0, 0, 0,
+ 208, 206, 1, 0, 0, 0, 208, 209, 1, 0, 0, 0, 209, 23, 1, 0, 0, 0, 210, 208,
+ 1, 0, 0, 0, 211, 213, 5, 20, 0, 0, 212, 211, 1, 0, 0, 0, 212, 213, 1, 0,
+ 0, 0, 213, 214, 1, 0, 0, 0, 214, 215, 5, 36, 0, 0, 215, 25, 1, 0, 0, 0,
+ 216, 217, 3, 28, 14, 0, 217, 218, 5, 21, 0, 0, 218, 226, 3, 2, 1, 0, 219,
+ 220, 5, 17, 0, 0, 220, 221, 3, 28, 14, 0, 221, 222, 5, 21, 0, 0, 222, 223,
+ 3, 2, 1, 0, 223, 225, 1, 0, 0, 0, 224, 219, 1, 0, 0, 0, 225, 228, 1, 0,
+ 0, 0, 226, 224, 1, 0, 0, 0, 226, 227, 1, 0, 0, 0, 227, 27, 1, 0, 0, 0,
+ 228, 226, 1, 0, 0, 0, 229, 231, 5, 20, 0, 0, 230, 229, 1, 0, 0, 0, 230,
+ 231, 1, 0, 0, 0, 231, 232, 1, 0, 0, 0, 232, 233, 3, 2, 1, 0, 233, 29, 1,
+ 0, 0, 0, 234, 236, 5, 18, 0, 0, 235, 234, 1, 0, 0, 0, 235, 236, 1, 0, 0,
+ 0, 236, 237, 1, 0, 0, 0, 237, 249, 5, 32, 0, 0, 238, 249, 5, 33, 0, 0,
+ 239, 241, 5, 18, 0, 0, 240, 239, 1, 0, 0, 0, 240, 241, 1, 0, 0, 0, 241,
+ 242, 1, 0, 0, 0, 242, 249, 5, 31, 0, 0, 243, 249, 5, 34, 0, 0, 244, 249,
+ 5, 35, 0, 0, 245, 249, 5, 26, 0, 0, 246, 249, 5, 27, 0, 0, 247, 249, 5,
+ 28, 0, 0, 248, 235, 1, 0, 0, 0, 248, 238, 1, 0, 0, 0, 248, 240, 1, 0, 0,
+ 0, 248, 243, 1, 0, 0, 0, 248, 244, 1, 0, 0, 0, 248, 245, 1, 0, 0, 0, 248,
+ 246, 1, 0, 0, 0, 248, 247, 1, 0, 0, 0, 249, 31, 1, 0, 0, 0, 35, 41, 48,
+ 56, 67, 79, 81, 88, 94, 97, 105, 113, 119, 124, 126, 130, 135, 138, 146,
+ 149, 154, 157, 161, 168, 173, 176, 180, 187, 195, 208, 212, 226, 230, 235,
+ 240, 248,
+}
+ deserializer := antlr.NewATNDeserializer(nil)
+ staticData.atn = deserializer.Deserialize(staticData.serializedATN)
+ atn := staticData.atn
+ staticData.decisionToDFA = make([]*antlr.DFA, len(atn.DecisionToState))
+ decisionToDFA := staticData.decisionToDFA
+ for index, state := range atn.DecisionToState {
+ decisionToDFA[index] = antlr.NewDFA(state, index)
+ }
}
// CELParserInit initializes any static state used to implement CELParser. By default the
@@ -181,8 +182,8 @@ func celParserInit() {
// NewCELParser(). You can call this function if you wish to initialize the static state ahead
// of time.
func CELParserInit() {
- staticData := &celParserStaticData
- staticData.once.Do(celParserInit)
+ staticData := &CELParserStaticData
+ staticData.once.Do(celParserInit)
}
// NewCELParser produces a new parser instance for the optional input antlr.TokenStream.
@@ -190,75 +191,76 @@ func NewCELParser(input antlr.TokenStream) *CELParser {
CELParserInit()
this := new(CELParser)
this.BaseParser = antlr.NewBaseParser(input)
- staticData := &celParserStaticData
- this.Interpreter = antlr.NewParserATNSimulator(this, staticData.atn, staticData.decisionToDFA, staticData.predictionContextCache)
- this.RuleNames = staticData.ruleNames
- this.LiteralNames = staticData.literalNames
- this.SymbolicNames = staticData.symbolicNames
+ staticData := &CELParserStaticData
+ this.Interpreter = antlr.NewParserATNSimulator(this, staticData.atn, staticData.decisionToDFA, staticData.PredictionContextCache)
+ this.RuleNames = staticData.RuleNames
+ this.LiteralNames = staticData.LiteralNames
+ this.SymbolicNames = staticData.SymbolicNames
this.GrammarFileName = "CEL.g4"
return this
}
+
// CELParser tokens.
const (
- CELParserEOF = antlr.TokenEOF
- CELParserEQUALS = 1
- CELParserNOT_EQUALS = 2
- CELParserIN = 3
- CELParserLESS = 4
- CELParserLESS_EQUALS = 5
+ CELParserEOF = antlr.TokenEOF
+ CELParserEQUALS = 1
+ CELParserNOT_EQUALS = 2
+ CELParserIN = 3
+ CELParserLESS = 4
+ CELParserLESS_EQUALS = 5
CELParserGREATER_EQUALS = 6
- CELParserGREATER = 7
- CELParserLOGICAL_AND = 8
- CELParserLOGICAL_OR = 9
- CELParserLBRACKET = 10
- CELParserRPRACKET = 11
- CELParserLBRACE = 12
- CELParserRBRACE = 13
- CELParserLPAREN = 14
- CELParserRPAREN = 15
- CELParserDOT = 16
- CELParserCOMMA = 17
- CELParserMINUS = 18
- CELParserEXCLAM = 19
- CELParserQUESTIONMARK = 20
- CELParserCOLON = 21
- CELParserPLUS = 22
- CELParserSTAR = 23
- CELParserSLASH = 24
- CELParserPERCENT = 25
- CELParserCEL_TRUE = 26
- CELParserCEL_FALSE = 27
- CELParserNUL = 28
- CELParserWHITESPACE = 29
- CELParserCOMMENT = 30
- CELParserNUM_FLOAT = 31
- CELParserNUM_INT = 32
- CELParserNUM_UINT = 33
- CELParserSTRING = 34
- CELParserBYTES = 35
- CELParserIDENTIFIER = 36
+ CELParserGREATER = 7
+ CELParserLOGICAL_AND = 8
+ CELParserLOGICAL_OR = 9
+ CELParserLBRACKET = 10
+ CELParserRPRACKET = 11
+ CELParserLBRACE = 12
+ CELParserRBRACE = 13
+ CELParserLPAREN = 14
+ CELParserRPAREN = 15
+ CELParserDOT = 16
+ CELParserCOMMA = 17
+ CELParserMINUS = 18
+ CELParserEXCLAM = 19
+ CELParserQUESTIONMARK = 20
+ CELParserCOLON = 21
+ CELParserPLUS = 22
+ CELParserSTAR = 23
+ CELParserSLASH = 24
+ CELParserPERCENT = 25
+ CELParserCEL_TRUE = 26
+ CELParserCEL_FALSE = 27
+ CELParserNUL = 28
+ CELParserWHITESPACE = 29
+ CELParserCOMMENT = 30
+ CELParserNUM_FLOAT = 31
+ CELParserNUM_INT = 32
+ CELParserNUM_UINT = 33
+ CELParserSTRING = 34
+ CELParserBYTES = 35
+ CELParserIDENTIFIER = 36
)
// CELParser rules.
const (
- CELParserRULE_start = 0
- CELParserRULE_expr = 1
- CELParserRULE_conditionalOr = 2
- CELParserRULE_conditionalAnd = 3
- CELParserRULE_relation = 4
- CELParserRULE_calc = 5
- CELParserRULE_unary = 6
- CELParserRULE_member = 7
- CELParserRULE_primary = 8
- CELParserRULE_exprList = 9
- CELParserRULE_listInit = 10
+ CELParserRULE_start = 0
+ CELParserRULE_expr = 1
+ CELParserRULE_conditionalOr = 2
+ CELParserRULE_conditionalAnd = 3
+ CELParserRULE_relation = 4
+ CELParserRULE_calc = 5
+ CELParserRULE_unary = 6
+ CELParserRULE_member = 7
+ CELParserRULE_primary = 8
+ CELParserRULE_exprList = 9
+ CELParserRULE_listInit = 10
CELParserRULE_fieldInitializerList = 11
- CELParserRULE_optField = 12
- CELParserRULE_mapInitializerList = 13
- CELParserRULE_optExpr = 14
- CELParserRULE_literal = 15
+ CELParserRULE_optField = 12
+ CELParserRULE_mapInitializerList = 13
+ CELParserRULE_optExpr = 14
+ CELParserRULE_literal = 15
)
// IStartContext is an interface to support dynamic dispatch.
@@ -271,9 +273,11 @@ type IStartContext interface {
// GetE returns the e rule contexts.
GetE() IExprContext
+
// SetE sets the e rule contexts.
SetE(IExprContext)
+
// Getter signatures
EOF() antlr.TerminalNode
Expr() IExprContext
@@ -283,24 +287,29 @@ type IStartContext interface {
}
type StartContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
- e IExprContext
+ e IExprContext
}
func NewEmptyStartContext() *StartContext {
var p = new(StartContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_start
return p
}
+func InitEmptyStartContext(p *StartContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_start
+}
+
func (*StartContext) IsStartContext() {}
func NewStartContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *StartContext {
var p = new(StartContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_start
@@ -312,17 +321,19 @@ func (s *StartContext) GetParser() antlr.Parser { return s.parser }
func (s *StartContext) GetE() IExprContext { return s.e }
+
func (s *StartContext) SetE(v IExprContext) { s.e = v }
+
func (s *StartContext) EOF() antlr.TerminalNode {
return s.GetToken(CELParserEOF, 0)
}
func (s *StartContext) Expr() IExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -342,6 +353,7 @@ func (s *StartContext) ToStringTree(ruleNames []string, recog antlr.Recognizer)
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *StartContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterStart(s)
@@ -364,45 +376,46 @@ func (s *StartContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
-func (p *CELParser) Start() (localctx IStartContext) {
- this := p
- _ = this
- localctx = NewStartContext(p, p.GetParserRuleContext(), p.GetState())
- p.EnterRule(localctx, 0, CELParserRULE_start)
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
+func (p *CELParser) Start_() (localctx IStartContext) {
+ localctx = NewStartContext(p, p.GetParserRuleContext(), p.GetState())
+ p.EnterRule(localctx, 0, CELParserRULE_start)
p.EnterOuterAlt(localctx, 1)
{
p.SetState(32)
var _x = p.Expr()
+
localctx.(*StartContext).e = _x
}
{
p.SetState(33)
p.Match(CELParserEOF)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IExprContext is an interface to support dynamic dispatch.
type IExprContext interface {
antlr.ParserRuleContext
@@ -411,10 +424,12 @@ type IExprContext interface {
GetParser() antlr.Parser
// GetOp returns the op token.
- GetOp() antlr.Token
+ GetOp() antlr.Token
+
// SetOp sets the op token.
- SetOp(antlr.Token)
+ SetOp(antlr.Token)
+
// GetE returns the e rule contexts.
GetE() IConditionalOrContext
@@ -425,6 +440,7 @@ type IExprContext interface {
// GetE2 returns the e2 rule contexts.
GetE2() IExprContext
+
// SetE sets the e rule contexts.
SetE(IConditionalOrContext)
@@ -434,6 +450,7 @@ type IExprContext interface {
// SetE2 sets the e2 rule contexts.
SetE2(IExprContext)
+
// Getter signatures
AllConditionalOr() []IConditionalOrContext
ConditionalOr(i int) IConditionalOrContext
@@ -446,27 +463,32 @@ type IExprContext interface {
}
type ExprContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
- e IConditionalOrContext
- op antlr.Token
- e1 IConditionalOrContext
- e2 IExprContext
+ e IConditionalOrContext
+ op antlr.Token
+ e1 IConditionalOrContext
+ e2 IExprContext
}
func NewEmptyExprContext() *ExprContext {
var p = new(ExprContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_expr
return p
}
+func InitEmptyExprContext(p *ExprContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_expr
+}
+
func (*ExprContext) IsExprContext() {}
func NewExprContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *ExprContext {
var p = new(ExprContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_expr
@@ -478,20 +500,24 @@ func (s *ExprContext) GetParser() antlr.Parser { return s.parser }
func (s *ExprContext) GetOp() antlr.Token { return s.op }
+
func (s *ExprContext) SetOp(v antlr.Token) { s.op = v }
+
func (s *ExprContext) GetE() IConditionalOrContext { return s.e }
func (s *ExprContext) GetE1() IConditionalOrContext { return s.e1 }
func (s *ExprContext) GetE2() IExprContext { return s.e2 }
+
func (s *ExprContext) SetE(v IConditionalOrContext) { s.e = v }
func (s *ExprContext) SetE1(v IConditionalOrContext) { s.e1 = v }
func (s *ExprContext) SetE2(v IExprContext) { s.e2 = v }
+
func (s *ExprContext) AllConditionalOr() []IConditionalOrContext {
children := s.GetChildren()
len := 0
@@ -514,12 +540,12 @@ func (s *ExprContext) AllConditionalOr() []IConditionalOrContext {
}
func (s *ExprContext) ConditionalOr(i int) IConditionalOrContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IConditionalOrContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -542,10 +568,10 @@ func (s *ExprContext) QUESTIONMARK() antlr.TerminalNode {
}
func (s *ExprContext) Expr() IExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -565,6 +591,7 @@ func (s *ExprContext) ToStringTree(ruleNames []string, recog antlr.Recognizer) s
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *ExprContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterExpr(s)
@@ -587,42 +614,31 @@ func (s *ExprContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
-func (p *CELParser) Expr() (localctx IExprContext) {
- this := p
- _ = this
+
+
+func (p *CELParser) Expr() (localctx IExprContext) {
localctx = NewExprContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 2, CELParserRULE_expr)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
p.EnterOuterAlt(localctx, 1)
{
p.SetState(35)
var _x = p.ConditionalOr()
+
localctx.(*ExprContext).e = _x
}
p.SetState(41)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserQUESTIONMARK {
{
p.SetState(36)
@@ -630,31 +646,54 @@ func (p *CELParser) Expr() (localctx IExprContext) {
var _m = p.Match(CELParserQUESTIONMARK)
localctx.(*ExprContext).op = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(37)
var _x = p.ConditionalOr()
+
localctx.(*ExprContext).e1 = _x
}
{
p.SetState(38)
p.Match(CELParserCOLON)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(39)
var _x = p.Expr()
+
localctx.(*ExprContext).e2 = _x
}
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IConditionalOrContext is an interface to support dynamic dispatch.
type IConditionalOrContext interface {
antlr.ParserRuleContext
@@ -663,34 +702,42 @@ type IConditionalOrContext interface {
GetParser() antlr.Parser
// GetS9 returns the s9 token.
- GetS9() antlr.Token
+ GetS9() antlr.Token
+
// SetS9 sets the s9 token.
- SetS9(antlr.Token)
+ SetS9(antlr.Token)
+
// GetOps returns the ops token list.
GetOps() []antlr.Token
+
// SetOps sets the ops token list.
SetOps([]antlr.Token)
+
// GetE returns the e rule contexts.
GetE() IConditionalAndContext
// Get_conditionalAnd returns the _conditionalAnd rule contexts.
Get_conditionalAnd() IConditionalAndContext
+
// SetE sets the e rule contexts.
SetE(IConditionalAndContext)
// Set_conditionalAnd sets the _conditionalAnd rule contexts.
Set_conditionalAnd(IConditionalAndContext)
+
// GetE1 returns the e1 rule context list.
GetE1() []IConditionalAndContext
+
// SetE1 sets the e1 rule context list.
- SetE1([]IConditionalAndContext)
+ SetE1([]IConditionalAndContext)
+
// Getter signatures
AllConditionalAnd() []IConditionalAndContext
@@ -703,28 +750,33 @@ type IConditionalOrContext interface {
}
type ConditionalOrContext struct {
- *antlr.BaseParserRuleContext
- parser antlr.Parser
- e IConditionalAndContext
- s9 antlr.Token
- ops []antlr.Token
- _conditionalAnd IConditionalAndContext
- e1 []IConditionalAndContext
+ antlr.BaseParserRuleContext
+ parser antlr.Parser
+ e IConditionalAndContext
+ s9 antlr.Token
+ ops []antlr.Token
+ _conditionalAnd IConditionalAndContext
+ e1 []IConditionalAndContext
}
func NewEmptyConditionalOrContext() *ConditionalOrContext {
var p = new(ConditionalOrContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_conditionalOr
return p
}
+func InitEmptyConditionalOrContext(p *ConditionalOrContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_conditionalOr
+}
+
func (*ConditionalOrContext) IsConditionalOrContext() {}
func NewConditionalOrContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *ConditionalOrContext {
var p = new(ConditionalOrContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_conditionalOr
@@ -736,24 +788,32 @@ func (s *ConditionalOrContext) GetParser() antlr.Parser { return s.parser }
func (s *ConditionalOrContext) GetS9() antlr.Token { return s.s9 }
+
func (s *ConditionalOrContext) SetS9(v antlr.Token) { s.s9 = v }
+
func (s *ConditionalOrContext) GetOps() []antlr.Token { return s.ops }
+
func (s *ConditionalOrContext) SetOps(v []antlr.Token) { s.ops = v }
+
func (s *ConditionalOrContext) GetE() IConditionalAndContext { return s.e }
func (s *ConditionalOrContext) Get_conditionalAnd() IConditionalAndContext { return s._conditionalAnd }
+
func (s *ConditionalOrContext) SetE(v IConditionalAndContext) { s.e = v }
func (s *ConditionalOrContext) Set_conditionalAnd(v IConditionalAndContext) { s._conditionalAnd = v }
+
func (s *ConditionalOrContext) GetE1() []IConditionalAndContext { return s.e1 }
+
func (s *ConditionalOrContext) SetE1(v []IConditionalAndContext) { s.e1 = v }
+
func (s *ConditionalOrContext) AllConditionalAnd() []IConditionalAndContext {
children := s.GetChildren()
len := 0
@@ -776,12 +836,12 @@ func (s *ConditionalOrContext) AllConditionalAnd() []IConditionalAndContext {
}
func (s *ConditionalOrContext) ConditionalAnd(i int) IConditionalAndContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IConditionalAndContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -811,6 +871,7 @@ func (s *ConditionalOrContext) ToStringTree(ruleNames []string, recog antlr.Reco
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *ConditionalOrContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterConditionalOr(s)
@@ -833,42 +894,31 @@ func (s *ConditionalOrContext) Accept(visitor antlr.ParseTreeVisitor) interface{
}
}
-func (p *CELParser) ConditionalOr() (localctx IConditionalOrContext) {
- this := p
- _ = this
+
+
+func (p *CELParser) ConditionalOr() (localctx IConditionalOrContext) {
localctx = NewConditionalOrContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 4, CELParserRULE_conditionalOr)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
p.EnterOuterAlt(localctx, 1)
{
p.SetState(43)
var _x = p.ConditionalAnd()
+
localctx.(*ConditionalOrContext).e = _x
}
p.SetState(48)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
for _la == CELParserLOGICAL_OR {
{
p.SetState(44)
@@ -876,6 +926,10 @@ func (p *CELParser) ConditionalOr() (localctx IConditionalOrContext) {
var _m = p.Match(CELParserLOGICAL_OR)
localctx.(*ConditionalOrContext).s9 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*ConditionalOrContext).ops = append(localctx.(*ConditionalOrContext).ops, localctx.(*ConditionalOrContext).s9)
{
@@ -883,18 +937,36 @@ func (p *CELParser) ConditionalOr() (localctx IConditionalOrContext) {
var _x = p.ConditionalAnd()
+
localctx.(*ConditionalOrContext)._conditionalAnd = _x
}
localctx.(*ConditionalOrContext).e1 = append(localctx.(*ConditionalOrContext).e1, localctx.(*ConditionalOrContext)._conditionalAnd)
+
p.SetState(50)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IConditionalAndContext is an interface to support dynamic dispatch.
type IConditionalAndContext interface {
antlr.ParserRuleContext
@@ -903,34 +975,42 @@ type IConditionalAndContext interface {
GetParser() antlr.Parser
// GetS8 returns the s8 token.
- GetS8() antlr.Token
+ GetS8() antlr.Token
+
// SetS8 sets the s8 token.
- SetS8(antlr.Token)
+ SetS8(antlr.Token)
+
// GetOps returns the ops token list.
GetOps() []antlr.Token
+
// SetOps sets the ops token list.
SetOps([]antlr.Token)
+
// GetE returns the e rule contexts.
GetE() IRelationContext
// Get_relation returns the _relation rule contexts.
Get_relation() IRelationContext
+
// SetE sets the e rule contexts.
SetE(IRelationContext)
// Set_relation sets the _relation rule contexts.
Set_relation(IRelationContext)
+
// GetE1 returns the e1 rule context list.
GetE1() []IRelationContext
+
// SetE1 sets the e1 rule context list.
- SetE1([]IRelationContext)
+ SetE1([]IRelationContext)
+
// Getter signatures
AllRelation() []IRelationContext
@@ -943,28 +1023,33 @@ type IConditionalAndContext interface {
}
type ConditionalAndContext struct {
- *antlr.BaseParserRuleContext
- parser antlr.Parser
- e IRelationContext
- s8 antlr.Token
- ops []antlr.Token
- _relation IRelationContext
- e1 []IRelationContext
+ antlr.BaseParserRuleContext
+ parser antlr.Parser
+ e IRelationContext
+ s8 antlr.Token
+ ops []antlr.Token
+ _relation IRelationContext
+ e1 []IRelationContext
}
func NewEmptyConditionalAndContext() *ConditionalAndContext {
var p = new(ConditionalAndContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_conditionalAnd
return p
}
+func InitEmptyConditionalAndContext(p *ConditionalAndContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_conditionalAnd
+}
+
func (*ConditionalAndContext) IsConditionalAndContext() {}
func NewConditionalAndContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *ConditionalAndContext {
var p = new(ConditionalAndContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_conditionalAnd
@@ -976,24 +1061,32 @@ func (s *ConditionalAndContext) GetParser() antlr.Parser { return s.parser }
func (s *ConditionalAndContext) GetS8() antlr.Token { return s.s8 }
+
func (s *ConditionalAndContext) SetS8(v antlr.Token) { s.s8 = v }
+
func (s *ConditionalAndContext) GetOps() []antlr.Token { return s.ops }
+
func (s *ConditionalAndContext) SetOps(v []antlr.Token) { s.ops = v }
+
func (s *ConditionalAndContext) GetE() IRelationContext { return s.e }
func (s *ConditionalAndContext) Get_relation() IRelationContext { return s._relation }
+
func (s *ConditionalAndContext) SetE(v IRelationContext) { s.e = v }
func (s *ConditionalAndContext) Set_relation(v IRelationContext) { s._relation = v }
+
func (s *ConditionalAndContext) GetE1() []IRelationContext { return s.e1 }
+
func (s *ConditionalAndContext) SetE1(v []IRelationContext) { s.e1 = v }
+
func (s *ConditionalAndContext) AllRelation() []IRelationContext {
children := s.GetChildren()
len := 0
@@ -1016,12 +1109,12 @@ func (s *ConditionalAndContext) AllRelation() []IRelationContext {
}
func (s *ConditionalAndContext) Relation(i int) IRelationContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IRelationContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -1051,6 +1144,7 @@ func (s *ConditionalAndContext) ToStringTree(ruleNames []string, recog antlr.Rec
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *ConditionalAndContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterConditionalAnd(s)
@@ -1073,30 +1167,14 @@ func (s *ConditionalAndContext) Accept(visitor antlr.ParseTreeVisitor) interface
}
}
-func (p *CELParser) ConditionalAnd() (localctx IConditionalAndContext) {
- this := p
- _ = this
+
+
+func (p *CELParser) ConditionalAnd() (localctx IConditionalAndContext) {
localctx = NewConditionalAndContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 6, CELParserRULE_conditionalAnd)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
p.EnterOuterAlt(localctx, 1)
{
p.SetState(51)
@@ -1107,8 +1185,12 @@ func (p *CELParser) ConditionalAnd() (localctx IConditionalAndContext) {
}
p.SetState(56)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
for _la == CELParserLOGICAL_AND {
{
p.SetState(52)
@@ -1116,6 +1198,10 @@ func (p *CELParser) ConditionalAnd() (localctx IConditionalAndContext) {
var _m = p.Match(CELParserLOGICAL_AND)
localctx.(*ConditionalAndContext).s8 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*ConditionalAndContext).ops = append(localctx.(*ConditionalAndContext).ops, localctx.(*ConditionalAndContext).s8)
{
@@ -1127,14 +1213,31 @@ func (p *CELParser) ConditionalAnd() (localctx IConditionalAndContext) {
}
localctx.(*ConditionalAndContext).e1 = append(localctx.(*ConditionalAndContext).e1, localctx.(*ConditionalAndContext)._relation)
+
p.SetState(58)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IRelationContext is an interface to support dynamic dispatch.
type IRelationContext interface {
antlr.ParserRuleContext
@@ -1143,10 +1246,12 @@ type IRelationContext interface {
GetParser() antlr.Parser
// GetOp returns the op token.
- GetOp() antlr.Token
+ GetOp() antlr.Token
+
// SetOp sets the op token.
- SetOp(antlr.Token)
+ SetOp(antlr.Token)
+
// Getter signatures
Calc() ICalcContext
@@ -1165,24 +1270,29 @@ type IRelationContext interface {
}
type RelationContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
- op antlr.Token
+ op antlr.Token
}
func NewEmptyRelationContext() *RelationContext {
var p = new(RelationContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_relation
return p
}
+func InitEmptyRelationContext(p *RelationContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_relation
+}
+
func (*RelationContext) IsRelationContext() {}
func NewRelationContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *RelationContext {
var p = new(RelationContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_relation
@@ -1194,13 +1304,15 @@ func (s *RelationContext) GetParser() antlr.Parser { return s.parser }
func (s *RelationContext) GetOp() antlr.Token { return s.op }
+
func (s *RelationContext) SetOp(v antlr.Token) { s.op = v }
+
func (s *RelationContext) Calc() ICalcContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(ICalcContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -1234,12 +1346,12 @@ func (s *RelationContext) AllRelation() []IRelationContext {
}
func (s *RelationContext) Relation(i int) IRelationContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IRelationContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -1289,6 +1401,7 @@ func (s *RelationContext) ToStringTree(ruleNames []string, recog antlr.Recognize
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *RelationContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterRelation(s)
@@ -1311,15 +1424,17 @@ func (s *RelationContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
+
+
+
func (p *CELParser) Relation() (localctx IRelationContext) {
return p.relation(0)
}
func (p *CELParser) relation(_p int) (localctx IRelationContext) {
- this := p
- _ = this
-
var _parentctx antlr.ParserRuleContext = p.GetParserRuleContext()
+
_parentState := p.GetState()
localctx = NewRelationContext(p, p.GetParserRuleContext(), _parentState)
var _prevctx IRelationContext = localctx
@@ -1328,22 +1443,6 @@ func (p *CELParser) relation(_p int) (localctx IRelationContext) {
p.EnterRecursionRule(localctx, 8, CELParserRULE_relation, _p)
var _la int
- defer func() {
- p.UnrollRecursionContexts(_parentctx)
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
var _alt int
p.EnterOuterAlt(localctx, 1)
@@ -1355,8 +1454,13 @@ func (p *CELParser) relation(_p int) (localctx IRelationContext) {
p.GetParserRuleContext().SetStop(p.GetTokenStream().LT(-1))
p.SetState(67)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 3, p.GetParserRuleContext())
-
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 3, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
if _alt == 1 {
if p.GetParseListeners() != nil {
@@ -1368,7 +1472,8 @@ func (p *CELParser) relation(_p int) (localctx IRelationContext) {
p.SetState(62)
if !(p.Precpred(p.GetParserRuleContext(), 1)) {
- panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 1)", ""))
+ p.SetError(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 1)", ""))
+ goto errorExit
}
{
p.SetState(63)
@@ -1379,7 +1484,7 @@ func (p *CELParser) relation(_p int) (localctx IRelationContext) {
_la = p.GetTokenStream().LA(1)
- if !((int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&254) != 0) {
+ if !(((int64(_la) & ^0x3f) == 0 && ((int64(1) << _la) & 254) != 0)) {
var _ri = p.GetErrorHandler().RecoverInline(p)
localctx.(*RelationContext).op = _ri
@@ -1393,15 +1498,35 @@ func (p *CELParser) relation(_p int) (localctx IRelationContext) {
p.relation(2)
}
+
}
p.SetState(69)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 3, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 3, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
}
+
+
+ errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.UnrollRecursionContexts(_parentctx)
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// ICalcContext is an interface to support dynamic dispatch.
type ICalcContext interface {
antlr.ParserRuleContext
@@ -1410,10 +1535,12 @@ type ICalcContext interface {
GetParser() antlr.Parser
// GetOp returns the op token.
- GetOp() antlr.Token
+ GetOp() antlr.Token
+
// SetOp sets the op token.
- SetOp(antlr.Token)
+ SetOp(antlr.Token)
+
// Getter signatures
Unary() IUnaryContext
@@ -1430,24 +1557,29 @@ type ICalcContext interface {
}
type CalcContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
- op antlr.Token
+ op antlr.Token
}
func NewEmptyCalcContext() *CalcContext {
var p = new(CalcContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_calc
return p
}
+func InitEmptyCalcContext(p *CalcContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_calc
+}
+
func (*CalcContext) IsCalcContext() {}
func NewCalcContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *CalcContext {
var p = new(CalcContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_calc
@@ -1459,13 +1591,15 @@ func (s *CalcContext) GetParser() antlr.Parser { return s.parser }
func (s *CalcContext) GetOp() antlr.Token { return s.op }
+
func (s *CalcContext) SetOp(v antlr.Token) { s.op = v }
+
func (s *CalcContext) Unary() IUnaryContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IUnaryContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -1499,12 +1633,12 @@ func (s *CalcContext) AllCalc() []ICalcContext {
}
func (s *CalcContext) Calc(i int) ICalcContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(ICalcContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -1546,6 +1680,7 @@ func (s *CalcContext) ToStringTree(ruleNames []string, recog antlr.Recognizer) s
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *CalcContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterCalc(s)
@@ -1568,15 +1703,17 @@ func (s *CalcContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
+
+
+
func (p *CELParser) Calc() (localctx ICalcContext) {
return p.calc(0)
}
func (p *CELParser) calc(_p int) (localctx ICalcContext) {
- this := p
- _ = this
-
var _parentctx antlr.ParserRuleContext = p.GetParserRuleContext()
+
_parentState := p.GetState()
localctx = NewCalcContext(p, p.GetParserRuleContext(), _parentState)
var _prevctx ICalcContext = localctx
@@ -1585,22 +1722,6 @@ func (p *CELParser) calc(_p int) (localctx ICalcContext) {
p.EnterRecursionRule(localctx, 10, CELParserRULE_calc, _p)
var _la int
- defer func() {
- p.UnrollRecursionContexts(_parentctx)
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
var _alt int
p.EnterOuterAlt(localctx, 1)
@@ -1612,8 +1733,13 @@ func (p *CELParser) calc(_p int) (localctx ICalcContext) {
p.GetParserRuleContext().SetStop(p.GetTokenStream().LT(-1))
p.SetState(81)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 5, p.GetParserRuleContext())
-
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 5, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
if _alt == 1 {
if p.GetParseListeners() != nil {
@@ -1622,14 +1748,19 @@ func (p *CELParser) calc(_p int) (localctx ICalcContext) {
_prevctx = localctx
p.SetState(79)
p.GetErrorHandler().Sync(p)
- switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 4, p.GetParserRuleContext()) {
+ if p.HasError() {
+ goto errorExit
+ }
+
+ switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 4, p.GetParserRuleContext()) {
case 1:
localctx = NewCalcContext(p, _parentctx, _parentState)
p.PushNewRecursionContext(localctx, _startState, CELParserRULE_calc)
p.SetState(73)
if !(p.Precpred(p.GetParserRuleContext(), 2)) {
- panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 2)", ""))
+ p.SetError(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 2)", ""))
+ goto errorExit
}
{
p.SetState(74)
@@ -1640,7 +1771,7 @@ func (p *CELParser) calc(_p int) (localctx ICalcContext) {
_la = p.GetTokenStream().LA(1)
- if !((int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&58720256) != 0) {
+ if !(((int64(_la) & ^0x3f) == 0 && ((int64(1) << _la) & 58720256) != 0)) {
var _ri = p.GetErrorHandler().RecoverInline(p)
localctx.(*CalcContext).op = _ri
@@ -1654,13 +1785,15 @@ func (p *CELParser) calc(_p int) (localctx ICalcContext) {
p.calc(3)
}
+
case 2:
localctx = NewCalcContext(p, _parentctx, _parentState)
p.PushNewRecursionContext(localctx, _startState, CELParserRULE_calc)
p.SetState(76)
if !(p.Precpred(p.GetParserRuleContext(), 1)) {
- panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 1)", ""))
+ p.SetError(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 1)", ""))
+ goto errorExit
}
{
p.SetState(77)
@@ -1685,17 +1818,38 @@ func (p *CELParser) calc(_p int) (localctx ICalcContext) {
p.calc(2)
}
+ case antlr.ATNInvalidAltNumber:
+ goto errorExit
}
}
p.SetState(83)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 5, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 5, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
}
+
+
+ errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.UnrollRecursionContexts(_parentctx)
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IUnaryContext is an interface to support dynamic dispatch.
type IUnaryContext interface {
antlr.ParserRuleContext
@@ -1707,23 +1861,28 @@ type IUnaryContext interface {
}
type UnaryContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
}
func NewEmptyUnaryContext() *UnaryContext {
var p = new(UnaryContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_unary
return p
}
+func InitEmptyUnaryContext(p *UnaryContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_unary
+}
+
func (*UnaryContext) IsUnaryContext() {}
func NewUnaryContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *UnaryContext {
var p = new(UnaryContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_unary
@@ -1733,8 +1892,8 @@ func NewUnaryContext(parser antlr.Parser, parent antlr.ParserRuleContext, invoki
func (s *UnaryContext) GetParser() antlr.Parser { return s.parser }
-func (s *UnaryContext) CopyFrom(ctx *UnaryContext) {
- s.BaseParserRuleContext.CopyFrom(ctx.BaseParserRuleContext)
+func (s *UnaryContext) CopyAll(ctx *UnaryContext) {
+ s.CopyFrom(&ctx.BaseParserRuleContext)
}
func (s *UnaryContext) GetRuleContext() antlr.RuleContext {
@@ -1745,8 +1904,11 @@ func (s *UnaryContext) ToStringTree(ruleNames []string, recog antlr.Recognizer)
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
+
+
type LogicalNotContext struct {
- *UnaryContext
+ UnaryContext
s19 antlr.Token
ops []antlr.Token
}
@@ -1754,19 +1916,23 @@ type LogicalNotContext struct {
func NewLogicalNotContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *LogicalNotContext {
var p = new(LogicalNotContext)
- p.UnaryContext = NewEmptyUnaryContext()
+ InitEmptyUnaryContext(&p.UnaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*UnaryContext))
+ p.CopyAll(ctx.(*UnaryContext))
return p
}
+
func (s *LogicalNotContext) GetS19() antlr.Token { return s.s19 }
+
func (s *LogicalNotContext) SetS19(v antlr.Token) { s.s19 = v }
+
func (s *LogicalNotContext) GetOps() []antlr.Token { return s.ops }
+
func (s *LogicalNotContext) SetOps(v []antlr.Token) { s.ops = v }
func (s *LogicalNotContext) GetRuleContext() antlr.RuleContext {
@@ -1774,10 +1940,10 @@ func (s *LogicalNotContext) GetRuleContext() antlr.RuleContext {
}
func (s *LogicalNotContext) Member() IMemberContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IMemberContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -1797,6 +1963,7 @@ func (s *LogicalNotContext) EXCLAM(i int) antlr.TerminalNode {
return s.GetToken(CELParserEXCLAM, i)
}
+
func (s *LogicalNotContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterLogicalNot(s)
@@ -1819,16 +1986,17 @@ func (s *LogicalNotContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type MemberExprContext struct {
- *UnaryContext
+ UnaryContext
}
func NewMemberExprContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *MemberExprContext {
var p = new(MemberExprContext)
- p.UnaryContext = NewEmptyUnaryContext()
+ InitEmptyUnaryContext(&p.UnaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*UnaryContext))
+ p.CopyAll(ctx.(*UnaryContext))
return p
}
@@ -1838,10 +2006,10 @@ func (s *MemberExprContext) GetRuleContext() antlr.RuleContext {
}
func (s *MemberExprContext) Member() IMemberContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IMemberContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -1853,6 +2021,7 @@ func (s *MemberExprContext) Member() IMemberContext {
return t.(IMemberContext)
}
+
func (s *MemberExprContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterMemberExpr(s)
@@ -1875,8 +2044,9 @@ func (s *MemberExprContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type NegateContext struct {
- *UnaryContext
+ UnaryContext
s18 antlr.Token
ops []antlr.Token
}
@@ -1884,19 +2054,23 @@ type NegateContext struct {
func NewNegateContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *NegateContext {
var p = new(NegateContext)
- p.UnaryContext = NewEmptyUnaryContext()
+ InitEmptyUnaryContext(&p.UnaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*UnaryContext))
+ p.CopyAll(ctx.(*UnaryContext))
return p
}
+
func (s *NegateContext) GetS18() antlr.Token { return s.s18 }
+
func (s *NegateContext) SetS18(v antlr.Token) { s.s18 = v }
+
func (s *NegateContext) GetOps() []antlr.Token { return s.ops }
+
func (s *NegateContext) SetOps(v []antlr.Token) { s.ops = v }
func (s *NegateContext) GetRuleContext() antlr.RuleContext {
@@ -1904,10 +2078,10 @@ func (s *NegateContext) GetRuleContext() antlr.RuleContext {
}
func (s *NegateContext) Member() IMemberContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IMemberContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -1927,6 +2101,7 @@ func (s *NegateContext) MINUS(i int) antlr.TerminalNode {
return s.GetToken(CELParserMINUS, i)
}
+
func (s *NegateContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterNegate(s)
@@ -1949,35 +2124,22 @@ func (s *NegateContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
-func (p *CELParser) Unary() (localctx IUnaryContext) {
- this := p
- _ = this
+
+func (p *CELParser) Unary() (localctx IUnaryContext) {
localctx = NewUnaryContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 12, CELParserRULE_unary)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
var _alt int
p.SetState(97)
p.GetErrorHandler().Sync(p)
- switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 8, p.GetParserRuleContext()) {
+ if p.HasError() {
+ goto errorExit
+ }
+
+ switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 8, p.GetParserRuleContext()) {
case 1:
localctx = NewMemberExprContext(p, localctx)
p.EnterOuterAlt(localctx, 1)
@@ -1986,13 +2148,18 @@ func (p *CELParser) Unary() (localctx IUnaryContext) {
p.member(0)
}
+
case 2:
localctx = NewLogicalNotContext(p, localctx)
p.EnterOuterAlt(localctx, 2)
p.SetState(86)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
for ok := true; ok; ok = _la == CELParserEXCLAM {
{
p.SetState(85)
@@ -2000,11 +2167,19 @@ func (p *CELParser) Unary() (localctx IUnaryContext) {
var _m = p.Match(CELParserEXCLAM)
localctx.(*LogicalNotContext).s19 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*LogicalNotContext).ops = append(localctx.(*LogicalNotContext).ops, localctx.(*LogicalNotContext).s19)
+
p.SetState(88)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
}
{
@@ -2012,42 +2187,71 @@ func (p *CELParser) Unary() (localctx IUnaryContext) {
p.member(0)
}
+
case 3:
localctx = NewNegateContext(p, localctx)
p.EnterOuterAlt(localctx, 3)
p.SetState(92)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_alt = 1
for ok := true; ok; ok = _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
switch _alt {
case 1:
- {
- p.SetState(91)
+ {
+ p.SetState(91)
+
+ var _m = p.Match(CELParserMINUS)
+
+ localctx.(*NegateContext).s18 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
+ }
+ localctx.(*NegateContext).ops = append(localctx.(*NegateContext).ops, localctx.(*NegateContext).s18)
+
- var _m = p.Match(CELParserMINUS)
- localctx.(*NegateContext).s18 = _m
- }
- localctx.(*NegateContext).ops = append(localctx.(*NegateContext).ops, localctx.(*NegateContext).s18)
default:
- panic(antlr.NewNoViableAltException(p, nil, nil, nil, nil, nil))
+ p.SetError(antlr.NewNoViableAltException(p, nil, nil, nil, nil, nil))
+ goto errorExit
}
p.SetState(94)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 7, p.GetParserRuleContext())
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 7, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
}
{
p.SetState(96)
p.member(0)
}
+ case antlr.ATNInvalidAltNumber:
+ goto errorExit
}
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IMemberContext is an interface to support dynamic dispatch.
type IMemberContext interface {
antlr.ParserRuleContext
@@ -2059,23 +2263,28 @@ type IMemberContext interface {
}
type MemberContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
}
func NewEmptyMemberContext() *MemberContext {
var p = new(MemberContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_member
return p
}
+func InitEmptyMemberContext(p *MemberContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_member
+}
+
func (*MemberContext) IsMemberContext() {}
func NewMemberContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *MemberContext {
var p = new(MemberContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_member
@@ -2085,8 +2294,8 @@ func NewMemberContext(parser antlr.Parser, parent antlr.ParserRuleContext, invok
func (s *MemberContext) GetParser() antlr.Parser { return s.parser }
-func (s *MemberContext) CopyFrom(ctx *MemberContext) {
- s.BaseParserRuleContext.CopyFrom(ctx.BaseParserRuleContext)
+func (s *MemberContext) CopyAll(ctx *MemberContext) {
+ s.CopyFrom(&ctx.BaseParserRuleContext)
}
func (s *MemberContext) GetRuleContext() antlr.RuleContext {
@@ -2097,38 +2306,46 @@ func (s *MemberContext) ToStringTree(ruleNames []string, recog antlr.Recognizer)
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
+
+
+
type MemberCallContext struct {
- *MemberContext
- op antlr.Token
- id antlr.Token
+ MemberContext
+ op antlr.Token
+ id antlr.Token
open antlr.Token
- args IExprListContext
+ args IExprListContext
}
func NewMemberCallContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *MemberCallContext {
var p = new(MemberCallContext)
- p.MemberContext = NewEmptyMemberContext()
+ InitEmptyMemberContext(&p.MemberContext)
p.parser = parser
- p.CopyFrom(ctx.(*MemberContext))
+ p.CopyAll(ctx.(*MemberContext))
return p
}
+
func (s *MemberCallContext) GetOp() antlr.Token { return s.op }
func (s *MemberCallContext) GetId() antlr.Token { return s.id }
func (s *MemberCallContext) GetOpen() antlr.Token { return s.open }
+
func (s *MemberCallContext) SetOp(v antlr.Token) { s.op = v }
func (s *MemberCallContext) SetId(v antlr.Token) { s.id = v }
func (s *MemberCallContext) SetOpen(v antlr.Token) { s.open = v }
+
func (s *MemberCallContext) GetArgs() IExprListContext { return s.args }
+
func (s *MemberCallContext) SetArgs(v IExprListContext) { s.args = v }
func (s *MemberCallContext) GetRuleContext() antlr.RuleContext {
@@ -2136,10 +2353,10 @@ func (s *MemberCallContext) GetRuleContext() antlr.RuleContext {
}
func (s *MemberCallContext) Member() IMemberContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IMemberContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2168,10 +2385,10 @@ func (s *MemberCallContext) LPAREN() antlr.TerminalNode {
}
func (s *MemberCallContext) ExprList() IExprListContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprListContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2183,6 +2400,7 @@ func (s *MemberCallContext) ExprList() IExprListContext {
return t.(IExprListContext)
}
+
func (s *MemberCallContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterMemberCall(s)
@@ -2205,29 +2423,32 @@ func (s *MemberCallContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type SelectContext struct {
- *MemberContext
- op antlr.Token
+ MemberContext
+ op antlr.Token
opt antlr.Token
- id antlr.Token
+ id antlr.Token
}
func NewSelectContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *SelectContext {
var p = new(SelectContext)
- p.MemberContext = NewEmptyMemberContext()
+ InitEmptyMemberContext(&p.MemberContext)
p.parser = parser
- p.CopyFrom(ctx.(*MemberContext))
+ p.CopyAll(ctx.(*MemberContext))
return p
}
+
func (s *SelectContext) GetOp() antlr.Token { return s.op }
func (s *SelectContext) GetOpt() antlr.Token { return s.opt }
func (s *SelectContext) GetId() antlr.Token { return s.id }
+
func (s *SelectContext) SetOp(v antlr.Token) { s.op = v }
func (s *SelectContext) SetOpt(v antlr.Token) { s.opt = v }
@@ -2239,10 +2460,10 @@ func (s *SelectContext) GetRuleContext() antlr.RuleContext {
}
func (s *SelectContext) Member() IMemberContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IMemberContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2266,6 +2487,7 @@ func (s *SelectContext) QUESTIONMARK() antlr.TerminalNode {
return s.GetToken(CELParserQUESTIONMARK, 0)
}
+
func (s *SelectContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterSelect(s)
@@ -2288,16 +2510,17 @@ func (s *SelectContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type PrimaryExprContext struct {
- *MemberContext
+ MemberContext
}
func NewPrimaryExprContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *PrimaryExprContext {
var p = new(PrimaryExprContext)
- p.MemberContext = NewEmptyMemberContext()
+ InitEmptyMemberContext(&p.MemberContext)
p.parser = parser
- p.CopyFrom(ctx.(*MemberContext))
+ p.CopyAll(ctx.(*MemberContext))
return p
}
@@ -2307,10 +2530,10 @@ func (s *PrimaryExprContext) GetRuleContext() antlr.RuleContext {
}
func (s *PrimaryExprContext) Primary() IPrimaryContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IPrimaryContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2322,6 +2545,7 @@ func (s *PrimaryExprContext) Primary() IPrimaryContext {
return t.(IPrimaryContext)
}
+
func (s *PrimaryExprContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterPrimaryExpr(s)
@@ -2344,33 +2568,38 @@ func (s *PrimaryExprContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
}
}
+
type IndexContext struct {
- *MemberContext
- op antlr.Token
- opt antlr.Token
- index IExprContext
+ MemberContext
+ op antlr.Token
+ opt antlr.Token
+ index IExprContext
}
func NewIndexContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *IndexContext {
var p = new(IndexContext)
- p.MemberContext = NewEmptyMemberContext()
+ InitEmptyMemberContext(&p.MemberContext)
p.parser = parser
- p.CopyFrom(ctx.(*MemberContext))
+ p.CopyAll(ctx.(*MemberContext))
return p
}
+
func (s *IndexContext) GetOp() antlr.Token { return s.op }
func (s *IndexContext) GetOpt() antlr.Token { return s.opt }
+
func (s *IndexContext) SetOp(v antlr.Token) { s.op = v }
func (s *IndexContext) SetOpt(v antlr.Token) { s.opt = v }
+
func (s *IndexContext) GetIndex() IExprContext { return s.index }
+
func (s *IndexContext) SetIndex(v IExprContext) { s.index = v }
func (s *IndexContext) GetRuleContext() antlr.RuleContext {
@@ -2378,10 +2607,10 @@ func (s *IndexContext) GetRuleContext() antlr.RuleContext {
}
func (s *IndexContext) Member() IMemberContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IMemberContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2402,10 +2631,10 @@ func (s *IndexContext) LBRACKET() antlr.TerminalNode {
}
func (s *IndexContext) Expr() IExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2421,6 +2650,7 @@ func (s *IndexContext) QUESTIONMARK() antlr.TerminalNode {
return s.GetToken(CELParserQUESTIONMARK, 0)
}
+
func (s *IndexContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterIndex(s)
@@ -2443,15 +2673,15 @@ func (s *IndexContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
+
func (p *CELParser) Member() (localctx IMemberContext) {
return p.member(0)
}
func (p *CELParser) member(_p int) (localctx IMemberContext) {
- this := p
- _ = this
-
var _parentctx antlr.ParserRuleContext = p.GetParserRuleContext()
+
_parentState := p.GetState()
localctx = NewMemberContext(p, p.GetParserRuleContext(), _parentState)
var _prevctx IMemberContext = localctx
@@ -2460,22 +2690,6 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
p.EnterRecursionRule(localctx, 14, CELParserRULE_member, _p)
var _la int
- defer func() {
- p.UnrollRecursionContexts(_parentctx)
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
var _alt int
p.EnterOuterAlt(localctx, 1)
@@ -2491,8 +2705,13 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
p.GetParserRuleContext().SetStop(p.GetTokenStream().LT(-1))
p.SetState(126)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 13, p.GetParserRuleContext())
-
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 13, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
if _alt == 1 {
if p.GetParseListeners() != nil {
@@ -2501,14 +2720,19 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
_prevctx = localctx
p.SetState(124)
p.GetErrorHandler().Sync(p)
- switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 12, p.GetParserRuleContext()) {
+ if p.HasError() {
+ goto errorExit
+ }
+
+ switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 12, p.GetParserRuleContext()) {
case 1:
localctx = NewSelectContext(p, NewMemberContext(p, _parentctx, _parentState))
p.PushNewRecursionContext(localctx, _startState, CELParserRULE_member)
p.SetState(102)
if !(p.Precpred(p.GetParserRuleContext(), 3)) {
- panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 3)", ""))
+ p.SetError(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 3)", ""))
+ goto errorExit
}
{
p.SetState(103)
@@ -2516,11 +2740,19 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _m = p.Match(CELParserDOT)
localctx.(*SelectContext).op = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
p.SetState(105)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserQUESTIONMARK {
{
p.SetState(104)
@@ -2528,6 +2760,10 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _m = p.Match(CELParserQUESTIONMARK)
localctx.(*SelectContext).opt = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
@@ -2537,15 +2773,21 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _m = p.Match(CELParserIDENTIFIER)
localctx.(*SelectContext).id = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 2:
localctx = NewMemberCallContext(p, NewMemberContext(p, _parentctx, _parentState))
p.PushNewRecursionContext(localctx, _startState, CELParserRULE_member)
p.SetState(108)
if !(p.Precpred(p.GetParserRuleContext(), 2)) {
- panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 2)", ""))
+ p.SetError(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 2)", ""))
+ goto errorExit
}
{
p.SetState(109)
@@ -2553,6 +2795,10 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _m = p.Match(CELParserDOT)
localctx.(*MemberCallContext).op = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(110)
@@ -2560,6 +2806,10 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _m = p.Match(CELParserIDENTIFIER)
localctx.(*MemberCallContext).id = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(111)
@@ -2567,17 +2817,26 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _m = p.Match(CELParserLPAREN)
localctx.(*MemberCallContext).open = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
p.SetState(113)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
- if (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&135762105344) != 0 {
+
+ if ((int64(_la) & ^0x3f) == 0 && ((int64(1) << _la) & 135762105344) != 0) {
{
p.SetState(112)
var _x = p.ExprList()
+
localctx.(*MemberCallContext).args = _x
}
@@ -2585,15 +2844,21 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
{
p.SetState(115)
p.Match(CELParserRPAREN)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 3:
localctx = NewIndexContext(p, NewMemberContext(p, _parentctx, _parentState))
p.PushNewRecursionContext(localctx, _startState, CELParserRULE_member)
p.SetState(116)
if !(p.Precpred(p.GetParserRuleContext(), 1)) {
- panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 1)", ""))
+ p.SetError(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 1)", ""))
+ goto errorExit
}
{
p.SetState(117)
@@ -2601,11 +2866,19 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _m = p.Match(CELParserLBRACKET)
localctx.(*IndexContext).op = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
p.SetState(119)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserQUESTIONMARK {
{
p.SetState(118)
@@ -2613,6 +2886,10 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _m = p.Match(CELParserQUESTIONMARK)
localctx.(*IndexContext).opt = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
@@ -2621,24 +2898,50 @@ func (p *CELParser) member(_p int) (localctx IMemberContext) {
var _x = p.Expr()
+
localctx.(*IndexContext).index = _x
}
{
p.SetState(122)
p.Match(CELParserRPRACKET)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+ case antlr.ATNInvalidAltNumber:
+ goto errorExit
}
}
p.SetState(128)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 13, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 13, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
}
+
+
+ errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.UnrollRecursionContexts(_parentctx)
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IPrimaryContext is an interface to support dynamic dispatch.
type IPrimaryContext interface {
antlr.ParserRuleContext
@@ -2650,23 +2953,28 @@ type IPrimaryContext interface {
}
type PrimaryContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
}
func NewEmptyPrimaryContext() *PrimaryContext {
var p = new(PrimaryContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_primary
return p
}
+func InitEmptyPrimaryContext(p *PrimaryContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_primary
+}
+
func (*PrimaryContext) IsPrimaryContext() {}
func NewPrimaryContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *PrimaryContext {
var p = new(PrimaryContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_primary
@@ -2676,8 +2984,8 @@ func NewPrimaryContext(parser antlr.Parser, parent antlr.ParserRuleContext, invo
func (s *PrimaryContext) GetParser() antlr.Parser { return s.parser }
-func (s *PrimaryContext) CopyFrom(ctx *PrimaryContext) {
- s.BaseParserRuleContext.CopyFrom(ctx.BaseParserRuleContext)
+func (s *PrimaryContext) CopyAll(ctx *PrimaryContext) {
+ s.CopyFrom(&ctx.BaseParserRuleContext)
}
func (s *PrimaryContext) GetRuleContext() antlr.RuleContext {
@@ -2688,28 +2996,35 @@ func (s *PrimaryContext) ToStringTree(ruleNames []string, recog antlr.Recognizer
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
+
+
type CreateListContext struct {
- *PrimaryContext
- op antlr.Token
- elems IListInitContext
+ PrimaryContext
+ op antlr.Token
+ elems IListInitContext
}
func NewCreateListContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *CreateListContext {
var p = new(CreateListContext)
- p.PrimaryContext = NewEmptyPrimaryContext()
+ InitEmptyPrimaryContext(&p.PrimaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*PrimaryContext))
+ p.CopyAll(ctx.(*PrimaryContext))
return p
}
+
func (s *CreateListContext) GetOp() antlr.Token { return s.op }
+
func (s *CreateListContext) SetOp(v antlr.Token) { s.op = v }
+
func (s *CreateListContext) GetElems() IListInitContext { return s.elems }
+
func (s *CreateListContext) SetElems(v IListInitContext) { s.elems = v }
func (s *CreateListContext) GetRuleContext() antlr.RuleContext {
@@ -2729,10 +3044,10 @@ func (s *CreateListContext) COMMA() antlr.TerminalNode {
}
func (s *CreateListContext) ListInit() IListInitContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IListInitContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2744,6 +3059,7 @@ func (s *CreateListContext) ListInit() IListInitContext {
return t.(IListInitContext)
}
+
func (s *CreateListContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterCreateList(s)
@@ -2766,28 +3082,33 @@ func (s *CreateListContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type CreateStructContext struct {
- *PrimaryContext
- op antlr.Token
- entries IMapInitializerListContext
+ PrimaryContext
+ op antlr.Token
+ entries IMapInitializerListContext
}
func NewCreateStructContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *CreateStructContext {
var p = new(CreateStructContext)
- p.PrimaryContext = NewEmptyPrimaryContext()
+ InitEmptyPrimaryContext(&p.PrimaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*PrimaryContext))
+ p.CopyAll(ctx.(*PrimaryContext))
return p
}
+
func (s *CreateStructContext) GetOp() antlr.Token { return s.op }
+
func (s *CreateStructContext) SetOp(v antlr.Token) { s.op = v }
+
func (s *CreateStructContext) GetEntries() IMapInitializerListContext { return s.entries }
+
func (s *CreateStructContext) SetEntries(v IMapInitializerListContext) { s.entries = v }
func (s *CreateStructContext) GetRuleContext() antlr.RuleContext {
@@ -2807,10 +3128,10 @@ func (s *CreateStructContext) COMMA() antlr.TerminalNode {
}
func (s *CreateStructContext) MapInitializerList() IMapInitializerListContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IMapInitializerListContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2822,6 +3143,7 @@ func (s *CreateStructContext) MapInitializerList() IMapInitializerListContext {
return t.(IMapInitializerListContext)
}
+
func (s *CreateStructContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterCreateStruct(s)
@@ -2844,16 +3166,17 @@ func (s *CreateStructContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
}
}
+
type ConstantLiteralContext struct {
- *PrimaryContext
+ PrimaryContext
}
func NewConstantLiteralContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *ConstantLiteralContext {
var p = new(ConstantLiteralContext)
- p.PrimaryContext = NewEmptyPrimaryContext()
+ InitEmptyPrimaryContext(&p.PrimaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*PrimaryContext))
+ p.CopyAll(ctx.(*PrimaryContext))
return p
}
@@ -2863,10 +3186,10 @@ func (s *ConstantLiteralContext) GetRuleContext() antlr.RuleContext {
}
func (s *ConstantLiteralContext) Literal() ILiteralContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(ILiteralContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2878,6 +3201,7 @@ func (s *ConstantLiteralContext) Literal() ILiteralContext {
return t.(ILiteralContext)
}
+
func (s *ConstantLiteralContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterConstantLiteral(s)
@@ -2900,23 +3224,26 @@ func (s *ConstantLiteralContext) Accept(visitor antlr.ParseTreeVisitor) interfac
}
}
+
type NestedContext struct {
- *PrimaryContext
- e IExprContext
+ PrimaryContext
+ e IExprContext
}
func NewNestedContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *NestedContext {
var p = new(NestedContext)
- p.PrimaryContext = NewEmptyPrimaryContext()
+ InitEmptyPrimaryContext(&p.PrimaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*PrimaryContext))
+ p.CopyAll(ctx.(*PrimaryContext))
return p
}
+
func (s *NestedContext) GetE() IExprContext { return s.e }
+
func (s *NestedContext) SetE(v IExprContext) { s.e = v }
func (s *NestedContext) GetRuleContext() antlr.RuleContext {
@@ -2932,10 +3259,10 @@ func (s *NestedContext) RPAREN() antlr.TerminalNode {
}
func (s *NestedContext) Expr() IExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -2947,6 +3274,7 @@ func (s *NestedContext) Expr() IExprContext {
return t.(IExprContext)
}
+
func (s *NestedContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterNested(s)
@@ -2969,27 +3297,29 @@ func (s *NestedContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type CreateMessageContext struct {
- *PrimaryContext
- leadingDot antlr.Token
+ PrimaryContext
+ leadingDot antlr.Token
_IDENTIFIER antlr.Token
- ids []antlr.Token
- s16 antlr.Token
- ops []antlr.Token
- op antlr.Token
- entries IFieldInitializerListContext
+ ids []antlr.Token
+ s16 antlr.Token
+ ops []antlr.Token
+ op antlr.Token
+ entries IFieldInitializerListContext
}
func NewCreateMessageContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *CreateMessageContext {
var p = new(CreateMessageContext)
- p.PrimaryContext = NewEmptyPrimaryContext()
+ InitEmptyPrimaryContext(&p.PrimaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*PrimaryContext))
+ p.CopyAll(ctx.(*PrimaryContext))
return p
}
+
func (s *CreateMessageContext) GetLeadingDot() antlr.Token { return s.leadingDot }
func (s *CreateMessageContext) Get_IDENTIFIER() antlr.Token { return s._IDENTIFIER }
@@ -2998,6 +3328,7 @@ func (s *CreateMessageContext) GetS16() antlr.Token { return s.s16 }
func (s *CreateMessageContext) GetOp() antlr.Token { return s.op }
+
func (s *CreateMessageContext) SetLeadingDot(v antlr.Token) { s.leadingDot = v }
func (s *CreateMessageContext) Set_IDENTIFIER(v antlr.Token) { s._IDENTIFIER = v }
@@ -3006,16 +3337,20 @@ func (s *CreateMessageContext) SetS16(v antlr.Token) { s.s16 = v }
func (s *CreateMessageContext) SetOp(v antlr.Token) { s.op = v }
+
func (s *CreateMessageContext) GetIds() []antlr.Token { return s.ids }
func (s *CreateMessageContext) GetOps() []antlr.Token { return s.ops }
+
func (s *CreateMessageContext) SetIds(v []antlr.Token) { s.ids = v }
func (s *CreateMessageContext) SetOps(v []antlr.Token) { s.ops = v }
+
func (s *CreateMessageContext) GetEntries() IFieldInitializerListContext { return s.entries }
+
func (s *CreateMessageContext) SetEntries(v IFieldInitializerListContext) { s.entries = v }
func (s *CreateMessageContext) GetRuleContext() antlr.RuleContext {
@@ -3051,10 +3386,10 @@ func (s *CreateMessageContext) DOT(i int) antlr.TerminalNode {
}
func (s *CreateMessageContext) FieldInitializerList() IFieldInitializerListContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IFieldInitializerListContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -3066,6 +3401,7 @@ func (s *CreateMessageContext) FieldInitializerList() IFieldInitializerListConte
return t.(IFieldInitializerListContext)
}
+
func (s *CreateMessageContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterCreateMessage(s)
@@ -3088,38 +3424,43 @@ func (s *CreateMessageContext) Accept(visitor antlr.ParseTreeVisitor) interface{
}
}
+
type IdentOrGlobalCallContext struct {
- *PrimaryContext
+ PrimaryContext
leadingDot antlr.Token
- id antlr.Token
- op antlr.Token
- args IExprListContext
+ id antlr.Token
+ op antlr.Token
+ args IExprListContext
}
func NewIdentOrGlobalCallContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *IdentOrGlobalCallContext {
var p = new(IdentOrGlobalCallContext)
- p.PrimaryContext = NewEmptyPrimaryContext()
+ InitEmptyPrimaryContext(&p.PrimaryContext)
p.parser = parser
- p.CopyFrom(ctx.(*PrimaryContext))
+ p.CopyAll(ctx.(*PrimaryContext))
return p
}
+
func (s *IdentOrGlobalCallContext) GetLeadingDot() antlr.Token { return s.leadingDot }
func (s *IdentOrGlobalCallContext) GetId() antlr.Token { return s.id }
func (s *IdentOrGlobalCallContext) GetOp() antlr.Token { return s.op }
+
func (s *IdentOrGlobalCallContext) SetLeadingDot(v antlr.Token) { s.leadingDot = v }
func (s *IdentOrGlobalCallContext) SetId(v antlr.Token) { s.id = v }
func (s *IdentOrGlobalCallContext) SetOp(v antlr.Token) { s.op = v }
+
func (s *IdentOrGlobalCallContext) GetArgs() IExprListContext { return s.args }
+
func (s *IdentOrGlobalCallContext) SetArgs(v IExprListContext) { s.args = v }
func (s *IdentOrGlobalCallContext) GetRuleContext() antlr.RuleContext {
@@ -3143,10 +3484,10 @@ func (s *IdentOrGlobalCallContext) LPAREN() antlr.TerminalNode {
}
func (s *IdentOrGlobalCallContext) ExprList() IExprListContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprListContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -3158,6 +3499,7 @@ func (s *IdentOrGlobalCallContext) ExprList() IExprListContext {
return t.(IExprListContext)
}
+
func (s *IdentOrGlobalCallContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterIdentOrGlobalCall(s)
@@ -3180,40 +3522,31 @@ func (s *IdentOrGlobalCallContext) Accept(visitor antlr.ParseTreeVisitor) interf
}
}
-func (p *CELParser) Primary() (localctx IPrimaryContext) {
- this := p
- _ = this
+
+func (p *CELParser) Primary() (localctx IPrimaryContext) {
localctx = NewPrimaryContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 16, CELParserRULE_primary)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
p.SetState(180)
p.GetErrorHandler().Sync(p)
- switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 25, p.GetParserRuleContext()) {
+ if p.HasError() {
+ goto errorExit
+ }
+
+ switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 25, p.GetParserRuleContext()) {
case 1:
localctx = NewIdentOrGlobalCallContext(p, localctx)
p.EnterOuterAlt(localctx, 1)
p.SetState(130)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserDOT {
{
p.SetState(129)
@@ -3221,6 +3554,10 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserDOT)
localctx.(*IdentOrGlobalCallContext).leadingDot = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
@@ -3230,28 +3567,42 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserIDENTIFIER)
localctx.(*IdentOrGlobalCallContext).id = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
p.SetState(138)
p.GetErrorHandler().Sync(p)
- if p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 16, p.GetParserRuleContext()) == 1 {
+
+ if p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 16, p.GetParserRuleContext()) == 1 {
{
p.SetState(133)
var _m = p.Match(CELParserLPAREN)
localctx.(*IdentOrGlobalCallContext).op = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
p.SetState(135)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
- if (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&135762105344) != 0 {
+
+ if ((int64(_la) & ^0x3f) == 0 && ((int64(1) << _la) & 135762105344) != 0) {
{
p.SetState(134)
var _x = p.ExprList()
+
localctx.(*IdentOrGlobalCallContext).args = _x
}
@@ -3259,29 +3610,46 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
{
p.SetState(137)
p.Match(CELParserRPAREN)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+ } else if p.HasError() { // JIM
+ goto errorExit
}
+
case 2:
localctx = NewNestedContext(p, localctx)
p.EnterOuterAlt(localctx, 2)
{
p.SetState(140)
p.Match(CELParserLPAREN)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(141)
var _x = p.Expr()
+
localctx.(*NestedContext).e = _x
}
{
p.SetState(142)
p.Match(CELParserRPAREN)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 3:
localctx = NewCreateListContext(p, localctx)
p.EnterOuterAlt(localctx, 3)
@@ -3291,37 +3659,59 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserLBRACKET)
localctx.(*CreateListContext).op = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
p.SetState(146)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
- if (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&135763153920) != 0 {
+
+ if ((int64(_la) & ^0x3f) == 0 && ((int64(1) << _la) & 135763153920) != 0) {
{
p.SetState(145)
var _x = p.ListInit()
+
localctx.(*CreateListContext).elems = _x
}
}
p.SetState(149)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserCOMMA {
{
p.SetState(148)
p.Match(CELParserCOMMA)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
{
p.SetState(151)
p.Match(CELParserRPRACKET)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 4:
localctx = NewCreateStructContext(p, localctx)
p.EnterOuterAlt(localctx, 4)
@@ -3331,44 +3721,70 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserLBRACE)
localctx.(*CreateStructContext).op = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
p.SetState(154)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
- if (int64(_la) & ^0x3f) == 0 && ((int64(1)<<_la)&135763153920) != 0 {
+
+ if ((int64(_la) & ^0x3f) == 0 && ((int64(1) << _la) & 135763153920) != 0) {
{
p.SetState(153)
var _x = p.MapInitializerList()
+
localctx.(*CreateStructContext).entries = _x
}
}
p.SetState(157)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserCOMMA {
{
p.SetState(156)
p.Match(CELParserCOMMA)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
{
p.SetState(159)
p.Match(CELParserRBRACE)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 5:
localctx = NewCreateMessageContext(p, localctx)
p.EnterOuterAlt(localctx, 5)
p.SetState(161)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserDOT {
{
p.SetState(160)
@@ -3376,6 +3792,10 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserDOT)
localctx.(*CreateMessageContext).leadingDot = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
@@ -3385,12 +3805,20 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserIDENTIFIER)
localctx.(*CreateMessageContext)._IDENTIFIER = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*CreateMessageContext).ids = append(localctx.(*CreateMessageContext).ids, localctx.(*CreateMessageContext)._IDENTIFIER)
p.SetState(168)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
for _la == CELParserDOT {
{
p.SetState(164)
@@ -3398,6 +3826,10 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserDOT)
localctx.(*CreateMessageContext).s16 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*CreateMessageContext).ops = append(localctx.(*CreateMessageContext).ops, localctx.(*CreateMessageContext).s16)
{
@@ -3406,11 +3838,19 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserIDENTIFIER)
localctx.(*CreateMessageContext)._IDENTIFIER = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*CreateMessageContext).ids = append(localctx.(*CreateMessageContext).ids, localctx.(*CreateMessageContext)._IDENTIFIER)
+
p.SetState(170)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
}
{
@@ -3419,37 +3859,59 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
var _m = p.Match(CELParserLBRACE)
localctx.(*CreateMessageContext).op = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
p.SetState(173)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserQUESTIONMARK || _la == CELParserIDENTIFIER {
{
p.SetState(172)
var _x = p.FieldInitializerList()
+
localctx.(*CreateMessageContext).entries = _x
}
}
p.SetState(176)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserCOMMA {
{
p.SetState(175)
p.Match(CELParserCOMMA)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
{
p.SetState(178)
p.Match(CELParserRBRACE)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 6:
localctx = NewConstantLiteralContext(p, localctx)
p.EnterOuterAlt(localctx, 6)
@@ -3458,11 +3920,25 @@ func (p *CELParser) Primary() (localctx IPrimaryContext) {
p.Literal()
}
+ case antlr.ATNInvalidAltNumber:
+ goto errorExit
}
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IExprListContext is an interface to support dynamic dispatch.
type IExprListContext interface {
antlr.ParserRuleContext
@@ -3473,14 +3949,18 @@ type IExprListContext interface {
// Get_expr returns the _expr rule contexts.
Get_expr() IExprContext
+
// Set_expr sets the _expr rule contexts.
Set_expr(IExprContext)
+
// GetE returns the e rule context list.
GetE() []IExprContext
+
// SetE sets the e rule context list.
- SetE([]IExprContext)
+ SetE([]IExprContext)
+
// Getter signatures
AllExpr() []IExprContext
@@ -3493,25 +3973,30 @@ type IExprListContext interface {
}
type ExprListContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
- _expr IExprContext
- e []IExprContext
+ _expr IExprContext
+ e []IExprContext
}
func NewEmptyExprListContext() *ExprListContext {
var p = new(ExprListContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_exprList
return p
}
+func InitEmptyExprListContext(p *ExprListContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_exprList
+}
+
func (*ExprListContext) IsExprListContext() {}
func NewExprListContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *ExprListContext {
var p = new(ExprListContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_exprList
@@ -3523,12 +4008,16 @@ func (s *ExprListContext) GetParser() antlr.Parser { return s.parser }
func (s *ExprListContext) Get_expr() IExprContext { return s._expr }
+
func (s *ExprListContext) Set_expr(v IExprContext) { s._expr = v }
+
func (s *ExprListContext) GetE() []IExprContext { return s.e }
+
func (s *ExprListContext) SetE(v []IExprContext) { s.e = v }
+
func (s *ExprListContext) AllExpr() []IExprContext {
children := s.GetChildren()
len := 0
@@ -3551,12 +4040,12 @@ func (s *ExprListContext) AllExpr() []IExprContext {
}
func (s *ExprListContext) Expr(i int) IExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -3586,6 +4075,7 @@ func (s *ExprListContext) ToStringTree(ruleNames []string, recog antlr.Recognize
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *ExprListContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterExprList(s)
@@ -3608,65 +4098,76 @@ func (s *ExprListContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
-func (p *CELParser) ExprList() (localctx IExprListContext) {
- this := p
- _ = this
+
+
+func (p *CELParser) ExprList() (localctx IExprListContext) {
localctx = NewExprListContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 18, CELParserRULE_exprList)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
p.EnterOuterAlt(localctx, 1)
{
p.SetState(182)
var _x = p.Expr()
+
localctx.(*ExprListContext)._expr = _x
}
localctx.(*ExprListContext).e = append(localctx.(*ExprListContext).e, localctx.(*ExprListContext)._expr)
p.SetState(187)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
for _la == CELParserCOMMA {
{
p.SetState(183)
p.Match(CELParserCOMMA)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(184)
var _x = p.Expr()
+
localctx.(*ExprListContext)._expr = _x
}
localctx.(*ExprListContext).e = append(localctx.(*ExprListContext).e, localctx.(*ExprListContext)._expr)
+
p.SetState(189)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IListInitContext is an interface to support dynamic dispatch.
type IListInitContext interface {
antlr.ParserRuleContext
@@ -3677,14 +4178,18 @@ type IListInitContext interface {
// Get_optExpr returns the _optExpr rule contexts.
Get_optExpr() IOptExprContext
+
// Set_optExpr sets the _optExpr rule contexts.
Set_optExpr(IOptExprContext)
+
// GetElems returns the elems rule context list.
GetElems() []IOptExprContext
+
// SetElems sets the elems rule context list.
- SetElems([]IOptExprContext)
+ SetElems([]IOptExprContext)
+
// Getter signatures
AllOptExpr() []IOptExprContext
@@ -3697,25 +4202,30 @@ type IListInitContext interface {
}
type ListInitContext struct {
- *antlr.BaseParserRuleContext
- parser antlr.Parser
- _optExpr IOptExprContext
- elems []IOptExprContext
+ antlr.BaseParserRuleContext
+ parser antlr.Parser
+ _optExpr IOptExprContext
+ elems []IOptExprContext
}
func NewEmptyListInitContext() *ListInitContext {
var p = new(ListInitContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_listInit
return p
}
+func InitEmptyListInitContext(p *ListInitContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_listInit
+}
+
func (*ListInitContext) IsListInitContext() {}
func NewListInitContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *ListInitContext {
var p = new(ListInitContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_listInit
@@ -3727,12 +4237,16 @@ func (s *ListInitContext) GetParser() antlr.Parser { return s.parser }
func (s *ListInitContext) Get_optExpr() IOptExprContext { return s._optExpr }
+
func (s *ListInitContext) Set_optExpr(v IOptExprContext) { s._optExpr = v }
+
func (s *ListInitContext) GetElems() []IOptExprContext { return s.elems }
+
func (s *ListInitContext) SetElems(v []IOptExprContext) { s.elems = v }
+
func (s *ListInitContext) AllOptExpr() []IOptExprContext {
children := s.GetChildren()
len := 0
@@ -3755,12 +4269,12 @@ func (s *ListInitContext) AllOptExpr() []IOptExprContext {
}
func (s *ListInitContext) OptExpr(i int) IOptExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IOptExprContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -3790,6 +4304,7 @@ func (s *ListInitContext) ToStringTree(ruleNames []string, recog antlr.Recognize
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *ListInitContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterListInit(s)
@@ -3812,29 +4327,12 @@ func (s *ListInitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
-func (p *CELParser) ListInit() (localctx IListInitContext) {
- this := p
- _ = this
- localctx = NewListInitContext(p, p.GetParserRuleContext(), p.GetState())
- p.EnterRule(localctx, 20, CELParserRULE_listInit)
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
+func (p *CELParser) ListInit() (localctx IListInitContext) {
+ localctx = NewListInitContext(p, p.GetParserRuleContext(), p.GetState())
+ p.EnterRule(localctx, 20, CELParserRULE_listInit)
var _alt int
p.EnterOuterAlt(localctx, 1)
@@ -3843,37 +4341,68 @@ func (p *CELParser) ListInit() (localctx IListInitContext) {
var _x = p.OptExpr()
+
localctx.(*ListInitContext)._optExpr = _x
}
localctx.(*ListInitContext).elems = append(localctx.(*ListInitContext).elems, localctx.(*ListInitContext)._optExpr)
p.SetState(195)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 27, p.GetParserRuleContext())
-
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 27, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
if _alt == 1 {
{
p.SetState(191)
p.Match(CELParserCOMMA)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(192)
var _x = p.OptExpr()
+
localctx.(*ListInitContext)._optExpr = _x
}
localctx.(*ListInitContext).elems = append(localctx.(*ListInitContext).elems, localctx.(*ListInitContext)._optExpr)
+
}
p.SetState(197)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 27, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 27, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IFieldInitializerListContext is an interface to support dynamic dispatch.
type IFieldInitializerListContext interface {
antlr.ParserRuleContext
@@ -3882,40 +4411,48 @@ type IFieldInitializerListContext interface {
GetParser() antlr.Parser
// GetS21 returns the s21 token.
- GetS21() antlr.Token
+ GetS21() antlr.Token
+
// SetS21 sets the s21 token.
- SetS21(antlr.Token)
+ SetS21(antlr.Token)
+
// GetCols returns the cols token list.
GetCols() []antlr.Token
+
// SetCols sets the cols token list.
SetCols([]antlr.Token)
+
// Get_optField returns the _optField rule contexts.
Get_optField() IOptFieldContext
// Get_expr returns the _expr rule contexts.
Get_expr() IExprContext
+
// Set_optField sets the _optField rule contexts.
Set_optField(IOptFieldContext)
// Set_expr sets the _expr rule contexts.
Set_expr(IExprContext)
+
// GetFields returns the fields rule context list.
GetFields() []IOptFieldContext
// GetValues returns the values rule context list.
GetValues() []IExprContext
+
// SetFields sets the fields rule context list.
- SetFields([]IOptFieldContext)
+ SetFields([]IOptFieldContext)
// SetValues sets the values rule context list.
- SetValues([]IExprContext)
+ SetValues([]IExprContext)
+
// Getter signatures
AllOptField() []IOptFieldContext
@@ -3932,29 +4469,34 @@ type IFieldInitializerListContext interface {
}
type FieldInitializerListContext struct {
- *antlr.BaseParserRuleContext
- parser antlr.Parser
- _optField IOptFieldContext
- fields []IOptFieldContext
- s21 antlr.Token
- cols []antlr.Token
- _expr IExprContext
- values []IExprContext
+ antlr.BaseParserRuleContext
+ parser antlr.Parser
+ _optField IOptFieldContext
+ fields []IOptFieldContext
+ s21 antlr.Token
+ cols []antlr.Token
+ _expr IExprContext
+ values []IExprContext
}
func NewEmptyFieldInitializerListContext() *FieldInitializerListContext {
var p = new(FieldInitializerListContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_fieldInitializerList
return p
}
+func InitEmptyFieldInitializerListContext(p *FieldInitializerListContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_fieldInitializerList
+}
+
func (*FieldInitializerListContext) IsFieldInitializerListContext() {}
func NewFieldInitializerListContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *FieldInitializerListContext {
var p = new(FieldInitializerListContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_fieldInitializerList
@@ -3966,28 +4508,36 @@ func (s *FieldInitializerListContext) GetParser() antlr.Parser { return s.parser
func (s *FieldInitializerListContext) GetS21() antlr.Token { return s.s21 }
+
func (s *FieldInitializerListContext) SetS21(v antlr.Token) { s.s21 = v }
+
func (s *FieldInitializerListContext) GetCols() []antlr.Token { return s.cols }
+
func (s *FieldInitializerListContext) SetCols(v []antlr.Token) { s.cols = v }
+
func (s *FieldInitializerListContext) Get_optField() IOptFieldContext { return s._optField }
func (s *FieldInitializerListContext) Get_expr() IExprContext { return s._expr }
+
func (s *FieldInitializerListContext) Set_optField(v IOptFieldContext) { s._optField = v }
func (s *FieldInitializerListContext) Set_expr(v IExprContext) { s._expr = v }
+
func (s *FieldInitializerListContext) GetFields() []IOptFieldContext { return s.fields }
func (s *FieldInitializerListContext) GetValues() []IExprContext { return s.values }
+
func (s *FieldInitializerListContext) SetFields(v []IOptFieldContext) { s.fields = v }
func (s *FieldInitializerListContext) SetValues(v []IExprContext) { s.values = v }
+
func (s *FieldInitializerListContext) AllOptField() []IOptFieldContext {
children := s.GetChildren()
len := 0
@@ -4010,12 +4560,12 @@ func (s *FieldInitializerListContext) AllOptField() []IOptFieldContext {
}
func (s *FieldInitializerListContext) OptField(i int) IOptFieldContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IOptFieldContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -4059,12 +4609,12 @@ func (s *FieldInitializerListContext) AllExpr() []IExprContext {
}
func (s *FieldInitializerListContext) Expr(i int) IExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -4094,6 +4644,7 @@ func (s *FieldInitializerListContext) ToStringTree(ruleNames []string, recog ant
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *FieldInitializerListContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterFieldInitializerList(s)
@@ -4116,29 +4667,12 @@ func (s *FieldInitializerListContext) Accept(visitor antlr.ParseTreeVisitor) int
}
}
-func (p *CELParser) FieldInitializerList() (localctx IFieldInitializerListContext) {
- this := p
- _ = this
- localctx = NewFieldInitializerListContext(p, p.GetParserRuleContext(), p.GetState())
- p.EnterRule(localctx, 22, CELParserRULE_fieldInitializerList)
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
+func (p *CELParser) FieldInitializerList() (localctx IFieldInitializerListContext) {
+ localctx = NewFieldInitializerListContext(p, p.GetParserRuleContext(), p.GetState())
+ p.EnterRule(localctx, 22, CELParserRULE_fieldInitializerList)
var _alt int
p.EnterOuterAlt(localctx, 1)
@@ -4147,6 +4681,7 @@ func (p *CELParser) FieldInitializerList() (localctx IFieldInitializerListContex
var _x = p.OptField()
+
localctx.(*FieldInitializerListContext)._optField = _x
}
localctx.(*FieldInitializerListContext).fields = append(localctx.(*FieldInitializerListContext).fields, localctx.(*FieldInitializerListContext)._optField)
@@ -4156,6 +4691,10 @@ func (p *CELParser) FieldInitializerList() (localctx IFieldInitializerListContex
var _m = p.Match(CELParserCOLON)
localctx.(*FieldInitializerListContext).s21 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*FieldInitializerListContext).cols = append(localctx.(*FieldInitializerListContext).cols, localctx.(*FieldInitializerListContext).s21)
{
@@ -4163,24 +4702,35 @@ func (p *CELParser) FieldInitializerList() (localctx IFieldInitializerListContex
var _x = p.Expr()
+
localctx.(*FieldInitializerListContext)._expr = _x
}
localctx.(*FieldInitializerListContext).values = append(localctx.(*FieldInitializerListContext).values, localctx.(*FieldInitializerListContext)._expr)
p.SetState(208)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 28, p.GetParserRuleContext())
-
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 28, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
if _alt == 1 {
{
p.SetState(201)
p.Match(CELParserCOMMA)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(202)
var _x = p.OptField()
+
localctx.(*FieldInitializerListContext)._optField = _x
}
localctx.(*FieldInitializerListContext).fields = append(localctx.(*FieldInitializerListContext).fields, localctx.(*FieldInitializerListContext)._optField)
@@ -4190,6 +4740,10 @@ func (p *CELParser) FieldInitializerList() (localctx IFieldInitializerListContex
var _m = p.Match(CELParserCOLON)
localctx.(*FieldInitializerListContext).s21 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*FieldInitializerListContext).cols = append(localctx.(*FieldInitializerListContext).cols, localctx.(*FieldInitializerListContext).s21)
{
@@ -4197,19 +4751,40 @@ func (p *CELParser) FieldInitializerList() (localctx IFieldInitializerListContex
var _x = p.Expr()
+
localctx.(*FieldInitializerListContext)._expr = _x
}
localctx.(*FieldInitializerListContext).values = append(localctx.(*FieldInitializerListContext).values, localctx.(*FieldInitializerListContext)._expr)
+
}
p.SetState(210)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 28, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 28, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IOptFieldContext is an interface to support dynamic dispatch.
type IOptFieldContext interface {
antlr.ParserRuleContext
@@ -4218,10 +4793,12 @@ type IOptFieldContext interface {
GetParser() antlr.Parser
// GetOpt returns the opt token.
- GetOpt() antlr.Token
+ GetOpt() antlr.Token
+
// SetOpt sets the opt token.
- SetOpt(antlr.Token)
+ SetOpt(antlr.Token)
+
// Getter signatures
IDENTIFIER() antlr.TerminalNode
@@ -4232,24 +4809,29 @@ type IOptFieldContext interface {
}
type OptFieldContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
- opt antlr.Token
+ opt antlr.Token
}
func NewEmptyOptFieldContext() *OptFieldContext {
var p = new(OptFieldContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_optField
return p
}
+func InitEmptyOptFieldContext(p *OptFieldContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_optField
+}
+
func (*OptFieldContext) IsOptFieldContext() {}
func NewOptFieldContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *OptFieldContext {
var p = new(OptFieldContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_optField
@@ -4261,8 +4843,10 @@ func (s *OptFieldContext) GetParser() antlr.Parser { return s.parser }
func (s *OptFieldContext) GetOpt() antlr.Token { return s.opt }
+
func (s *OptFieldContext) SetOpt(v antlr.Token) { s.opt = v }
+
func (s *OptFieldContext) IDENTIFIER() antlr.TerminalNode {
return s.GetToken(CELParserIDENTIFIER, 0)
}
@@ -4279,6 +4863,7 @@ func (s *OptFieldContext) ToStringTree(ruleNames []string, recog antlr.Recognize
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *OptFieldContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterOptField(s)
@@ -4301,35 +4886,23 @@ func (s *OptFieldContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
-func (p *CELParser) OptField() (localctx IOptFieldContext) {
- this := p
- _ = this
+
+
+func (p *CELParser) OptField() (localctx IOptFieldContext) {
localctx = NewOptFieldContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 24, CELParserRULE_optField)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
p.EnterOuterAlt(localctx, 1)
p.SetState(212)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserQUESTIONMARK {
{
p.SetState(211)
@@ -4337,17 +4910,38 @@ func (p *CELParser) OptField() (localctx IOptFieldContext) {
var _m = p.Match(CELParserQUESTIONMARK)
localctx.(*OptFieldContext).opt = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
{
p.SetState(214)
p.Match(CELParserIDENTIFIER)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IMapInitializerListContext is an interface to support dynamic dispatch.
type IMapInitializerListContext interface {
antlr.ParserRuleContext
@@ -4356,40 +4950,48 @@ type IMapInitializerListContext interface {
GetParser() antlr.Parser
// GetS21 returns the s21 token.
- GetS21() antlr.Token
+ GetS21() antlr.Token
+
// SetS21 sets the s21 token.
- SetS21(antlr.Token)
+ SetS21(antlr.Token)
+
// GetCols returns the cols token list.
GetCols() []antlr.Token
+
// SetCols sets the cols token list.
SetCols([]antlr.Token)
+
// Get_optExpr returns the _optExpr rule contexts.
Get_optExpr() IOptExprContext
// Get_expr returns the _expr rule contexts.
Get_expr() IExprContext
+
// Set_optExpr sets the _optExpr rule contexts.
Set_optExpr(IOptExprContext)
// Set_expr sets the _expr rule contexts.
Set_expr(IExprContext)
+
// GetKeys returns the keys rule context list.
GetKeys() []IOptExprContext
// GetValues returns the values rule context list.
GetValues() []IExprContext
+
// SetKeys sets the keys rule context list.
- SetKeys([]IOptExprContext)
+ SetKeys([]IOptExprContext)
// SetValues sets the values rule context list.
- SetValues([]IExprContext)
+ SetValues([]IExprContext)
+
// Getter signatures
AllOptExpr() []IOptExprContext
@@ -4406,29 +5008,34 @@ type IMapInitializerListContext interface {
}
type MapInitializerListContext struct {
- *antlr.BaseParserRuleContext
- parser antlr.Parser
- _optExpr IOptExprContext
- keys []IOptExprContext
- s21 antlr.Token
- cols []antlr.Token
- _expr IExprContext
- values []IExprContext
+ antlr.BaseParserRuleContext
+ parser antlr.Parser
+ _optExpr IOptExprContext
+ keys []IOptExprContext
+ s21 antlr.Token
+ cols []antlr.Token
+ _expr IExprContext
+ values []IExprContext
}
func NewEmptyMapInitializerListContext() *MapInitializerListContext {
var p = new(MapInitializerListContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_mapInitializerList
return p
}
+func InitEmptyMapInitializerListContext(p *MapInitializerListContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_mapInitializerList
+}
+
func (*MapInitializerListContext) IsMapInitializerListContext() {}
func NewMapInitializerListContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *MapInitializerListContext {
var p = new(MapInitializerListContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_mapInitializerList
@@ -4440,28 +5047,36 @@ func (s *MapInitializerListContext) GetParser() antlr.Parser { return s.parser }
func (s *MapInitializerListContext) GetS21() antlr.Token { return s.s21 }
+
func (s *MapInitializerListContext) SetS21(v antlr.Token) { s.s21 = v }
+
func (s *MapInitializerListContext) GetCols() []antlr.Token { return s.cols }
+
func (s *MapInitializerListContext) SetCols(v []antlr.Token) { s.cols = v }
+
func (s *MapInitializerListContext) Get_optExpr() IOptExprContext { return s._optExpr }
func (s *MapInitializerListContext) Get_expr() IExprContext { return s._expr }
+
func (s *MapInitializerListContext) Set_optExpr(v IOptExprContext) { s._optExpr = v }
func (s *MapInitializerListContext) Set_expr(v IExprContext) { s._expr = v }
+
func (s *MapInitializerListContext) GetKeys() []IOptExprContext { return s.keys }
func (s *MapInitializerListContext) GetValues() []IExprContext { return s.values }
+
func (s *MapInitializerListContext) SetKeys(v []IOptExprContext) { s.keys = v }
func (s *MapInitializerListContext) SetValues(v []IExprContext) { s.values = v }
+
func (s *MapInitializerListContext) AllOptExpr() []IOptExprContext {
children := s.GetChildren()
len := 0
@@ -4484,12 +5099,12 @@ func (s *MapInitializerListContext) AllOptExpr() []IOptExprContext {
}
func (s *MapInitializerListContext) OptExpr(i int) IOptExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IOptExprContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -4533,12 +5148,12 @@ func (s *MapInitializerListContext) AllExpr() []IExprContext {
}
func (s *MapInitializerListContext) Expr(i int) IExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
j := 0
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprContext); ok {
if j == i {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
j++
@@ -4568,6 +5183,7 @@ func (s *MapInitializerListContext) ToStringTree(ruleNames []string, recog antlr
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *MapInitializerListContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterMapInitializerList(s)
@@ -4590,29 +5206,12 @@ func (s *MapInitializerListContext) Accept(visitor antlr.ParseTreeVisitor) inter
}
}
-func (p *CELParser) MapInitializerList() (localctx IMapInitializerListContext) {
- this := p
- _ = this
- localctx = NewMapInitializerListContext(p, p.GetParserRuleContext(), p.GetState())
- p.EnterRule(localctx, 26, CELParserRULE_mapInitializerList)
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
+func (p *CELParser) MapInitializerList() (localctx IMapInitializerListContext) {
+ localctx = NewMapInitializerListContext(p, p.GetParserRuleContext(), p.GetState())
+ p.EnterRule(localctx, 26, CELParserRULE_mapInitializerList)
var _alt int
p.EnterOuterAlt(localctx, 1)
@@ -4621,6 +5220,7 @@ func (p *CELParser) MapInitializerList() (localctx IMapInitializerListContext) {
var _x = p.OptExpr()
+
localctx.(*MapInitializerListContext)._optExpr = _x
}
localctx.(*MapInitializerListContext).keys = append(localctx.(*MapInitializerListContext).keys, localctx.(*MapInitializerListContext)._optExpr)
@@ -4630,6 +5230,10 @@ func (p *CELParser) MapInitializerList() (localctx IMapInitializerListContext) {
var _m = p.Match(CELParserCOLON)
localctx.(*MapInitializerListContext).s21 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*MapInitializerListContext).cols = append(localctx.(*MapInitializerListContext).cols, localctx.(*MapInitializerListContext).s21)
{
@@ -4637,24 +5241,35 @@ func (p *CELParser) MapInitializerList() (localctx IMapInitializerListContext) {
var _x = p.Expr()
+
localctx.(*MapInitializerListContext)._expr = _x
}
localctx.(*MapInitializerListContext).values = append(localctx.(*MapInitializerListContext).values, localctx.(*MapInitializerListContext)._expr)
p.SetState(226)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 30, p.GetParserRuleContext())
-
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 30, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
if _alt == 1 {
{
p.SetState(219)
p.Match(CELParserCOMMA)
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
{
p.SetState(220)
var _x = p.OptExpr()
+
localctx.(*MapInitializerListContext)._optExpr = _x
}
localctx.(*MapInitializerListContext).keys = append(localctx.(*MapInitializerListContext).keys, localctx.(*MapInitializerListContext)._optExpr)
@@ -4664,6 +5279,10 @@ func (p *CELParser) MapInitializerList() (localctx IMapInitializerListContext) {
var _m = p.Match(CELParserCOLON)
localctx.(*MapInitializerListContext).s21 = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
localctx.(*MapInitializerListContext).cols = append(localctx.(*MapInitializerListContext).cols, localctx.(*MapInitializerListContext).s21)
{
@@ -4671,19 +5290,40 @@ func (p *CELParser) MapInitializerList() (localctx IMapInitializerListContext) {
var _x = p.Expr()
+
localctx.(*MapInitializerListContext)._expr = _x
}
localctx.(*MapInitializerListContext).values = append(localctx.(*MapInitializerListContext).values, localctx.(*MapInitializerListContext)._expr)
+
}
p.SetState(228)
p.GetErrorHandler().Sync(p)
- _alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 30, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
+ _alt = p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 30, p.GetParserRuleContext())
+ if p.HasError() {
+ goto errorExit
+ }
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// IOptExprContext is an interface to support dynamic dispatch.
type IOptExprContext interface {
antlr.ParserRuleContext
@@ -4692,17 +5332,21 @@ type IOptExprContext interface {
GetParser() antlr.Parser
// GetOpt returns the opt token.
- GetOpt() antlr.Token
+ GetOpt() antlr.Token
+
// SetOpt sets the opt token.
- SetOpt(antlr.Token)
+ SetOpt(antlr.Token)
+
// GetE returns the e rule contexts.
GetE() IExprContext
+
// SetE sets the e rule contexts.
SetE(IExprContext)
+
// Getter signatures
Expr() IExprContext
QUESTIONMARK() antlr.TerminalNode
@@ -4712,25 +5356,30 @@ type IOptExprContext interface {
}
type OptExprContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
- opt antlr.Token
- e IExprContext
+ opt antlr.Token
+ e IExprContext
}
func NewEmptyOptExprContext() *OptExprContext {
var p = new(OptExprContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_optExpr
return p
}
+func InitEmptyOptExprContext(p *OptExprContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_optExpr
+}
+
func (*OptExprContext) IsOptExprContext() {}
func NewOptExprContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *OptExprContext {
var p = new(OptExprContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_optExpr
@@ -4742,17 +5391,21 @@ func (s *OptExprContext) GetParser() antlr.Parser { return s.parser }
func (s *OptExprContext) GetOpt() antlr.Token { return s.opt }
+
func (s *OptExprContext) SetOpt(v antlr.Token) { s.opt = v }
+
func (s *OptExprContext) GetE() IExprContext { return s.e }
+
func (s *OptExprContext) SetE(v IExprContext) { s.e = v }
+
func (s *OptExprContext) Expr() IExprContext {
- var t antlr.RuleContext
+ var t antlr.RuleContext;
for _, ctx := range s.GetChildren() {
if _, ok := ctx.(IExprContext); ok {
- t = ctx.(antlr.RuleContext)
+ t = ctx.(antlr.RuleContext);
break
}
}
@@ -4776,6 +5429,7 @@ func (s *OptExprContext) ToStringTree(ruleNames []string, recog antlr.Recognizer
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
func (s *OptExprContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterOptExpr(s)
@@ -4798,35 +5452,23 @@ func (s *OptExprContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
-func (p *CELParser) OptExpr() (localctx IOptExprContext) {
- this := p
- _ = this
+
+
+func (p *CELParser) OptExpr() (localctx IOptExprContext) {
localctx = NewOptExprContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 28, CELParserRULE_optExpr)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
p.EnterOuterAlt(localctx, 1)
p.SetState(230)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserQUESTIONMARK {
{
p.SetState(229)
@@ -4834,6 +5476,10 @@ func (p *CELParser) OptExpr() (localctx IOptExprContext) {
var _m = p.Match(CELParserQUESTIONMARK)
localctx.(*OptExprContext).opt = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
@@ -4842,12 +5488,26 @@ func (p *CELParser) OptExpr() (localctx IOptExprContext) {
var _x = p.Expr()
+
localctx.(*OptExprContext).e = _x
}
+
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
// ILiteralContext is an interface to support dynamic dispatch.
type ILiteralContext interface {
antlr.ParserRuleContext
@@ -4859,23 +5519,28 @@ type ILiteralContext interface {
}
type LiteralContext struct {
- *antlr.BaseParserRuleContext
+ antlr.BaseParserRuleContext
parser antlr.Parser
}
func NewEmptyLiteralContext() *LiteralContext {
var p = new(LiteralContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
p.RuleIndex = CELParserRULE_literal
return p
}
+func InitEmptyLiteralContext(p *LiteralContext) {
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, nil, -1)
+ p.RuleIndex = CELParserRULE_literal
+}
+
func (*LiteralContext) IsLiteralContext() {}
func NewLiteralContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *LiteralContext {
var p = new(LiteralContext)
- p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+ antlr.InitBaseParserRuleContext(&p.BaseParserRuleContext, parent, invokingState)
p.parser = parser
p.RuleIndex = CELParserRULE_literal
@@ -4885,8 +5550,8 @@ func NewLiteralContext(parser antlr.Parser, parent antlr.ParserRuleContext, invo
func (s *LiteralContext) GetParser() antlr.Parser { return s.parser }
-func (s *LiteralContext) CopyFrom(ctx *LiteralContext) {
- s.BaseParserRuleContext.CopyFrom(ctx.BaseParserRuleContext)
+func (s *LiteralContext) CopyAll(ctx *LiteralContext) {
+ s.CopyFrom(&ctx.BaseParserRuleContext)
}
func (s *LiteralContext) GetRuleContext() antlr.RuleContext {
@@ -4897,23 +5562,28 @@ func (s *LiteralContext) ToStringTree(ruleNames []string, recog antlr.Recognizer
return antlr.TreesStringTree(s, ruleNames, recog)
}
+
+
+
type BytesContext struct {
- *LiteralContext
+ LiteralContext
tok antlr.Token
}
func NewBytesContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *BytesContext {
var p = new(BytesContext)
- p.LiteralContext = NewEmptyLiteralContext()
+ InitEmptyLiteralContext(&p.LiteralContext)
p.parser = parser
- p.CopyFrom(ctx.(*LiteralContext))
+ p.CopyAll(ctx.(*LiteralContext))
return p
}
+
func (s *BytesContext) GetTok() antlr.Token { return s.tok }
+
func (s *BytesContext) SetTok(v antlr.Token) { s.tok = v }
func (s *BytesContext) GetRuleContext() antlr.RuleContext {
@@ -4924,6 +5594,7 @@ func (s *BytesContext) BYTES() antlr.TerminalNode {
return s.GetToken(CELParserBYTES, 0)
}
+
func (s *BytesContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterBytes(s)
@@ -4946,23 +5617,26 @@ func (s *BytesContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type UintContext struct {
- *LiteralContext
+ LiteralContext
tok antlr.Token
}
func NewUintContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *UintContext {
var p = new(UintContext)
- p.LiteralContext = NewEmptyLiteralContext()
+ InitEmptyLiteralContext(&p.LiteralContext)
p.parser = parser
- p.CopyFrom(ctx.(*LiteralContext))
+ p.CopyAll(ctx.(*LiteralContext))
return p
}
+
func (s *UintContext) GetTok() antlr.Token { return s.tok }
+
func (s *UintContext) SetTok(v antlr.Token) { s.tok = v }
func (s *UintContext) GetRuleContext() antlr.RuleContext {
@@ -4973,6 +5647,7 @@ func (s *UintContext) NUM_UINT() antlr.TerminalNode {
return s.GetToken(CELParserNUM_UINT, 0)
}
+
func (s *UintContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterUint(s)
@@ -4995,23 +5670,26 @@ func (s *UintContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type NullContext struct {
- *LiteralContext
+ LiteralContext
tok antlr.Token
}
func NewNullContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *NullContext {
var p = new(NullContext)
- p.LiteralContext = NewEmptyLiteralContext()
+ InitEmptyLiteralContext(&p.LiteralContext)
p.parser = parser
- p.CopyFrom(ctx.(*LiteralContext))
+ p.CopyAll(ctx.(*LiteralContext))
return p
}
+
func (s *NullContext) GetTok() antlr.Token { return s.tok }
+
func (s *NullContext) SetTok(v antlr.Token) { s.tok = v }
func (s *NullContext) GetRuleContext() antlr.RuleContext {
@@ -5022,6 +5700,7 @@ func (s *NullContext) NUL() antlr.TerminalNode {
return s.GetToken(CELParserNUL, 0)
}
+
func (s *NullContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterNull(s)
@@ -5044,23 +5723,26 @@ func (s *NullContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type BoolFalseContext struct {
- *LiteralContext
+ LiteralContext
tok antlr.Token
}
func NewBoolFalseContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *BoolFalseContext {
var p = new(BoolFalseContext)
- p.LiteralContext = NewEmptyLiteralContext()
+ InitEmptyLiteralContext(&p.LiteralContext)
p.parser = parser
- p.CopyFrom(ctx.(*LiteralContext))
+ p.CopyAll(ctx.(*LiteralContext))
return p
}
+
func (s *BoolFalseContext) GetTok() antlr.Token { return s.tok }
+
func (s *BoolFalseContext) SetTok(v antlr.Token) { s.tok = v }
func (s *BoolFalseContext) GetRuleContext() antlr.RuleContext {
@@ -5071,6 +5753,7 @@ func (s *BoolFalseContext) CEL_FALSE() antlr.TerminalNode {
return s.GetToken(CELParserCEL_FALSE, 0)
}
+
func (s *BoolFalseContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterBoolFalse(s)
@@ -5093,23 +5776,26 @@ func (s *BoolFalseContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type StringContext struct {
- *LiteralContext
+ LiteralContext
tok antlr.Token
}
func NewStringContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *StringContext {
var p = new(StringContext)
- p.LiteralContext = NewEmptyLiteralContext()
+ InitEmptyLiteralContext(&p.LiteralContext)
p.parser = parser
- p.CopyFrom(ctx.(*LiteralContext))
+ p.CopyAll(ctx.(*LiteralContext))
return p
}
+
func (s *StringContext) GetTok() antlr.Token { return s.tok }
+
func (s *StringContext) SetTok(v antlr.Token) { s.tok = v }
func (s *StringContext) GetRuleContext() antlr.RuleContext {
@@ -5120,6 +5806,7 @@ func (s *StringContext) STRING() antlr.TerminalNode {
return s.GetToken(CELParserSTRING, 0)
}
+
func (s *StringContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterString(s)
@@ -5142,26 +5829,29 @@ func (s *StringContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type DoubleContext struct {
- *LiteralContext
+ LiteralContext
sign antlr.Token
- tok antlr.Token
+ tok antlr.Token
}
func NewDoubleContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *DoubleContext {
var p = new(DoubleContext)
- p.LiteralContext = NewEmptyLiteralContext()
+ InitEmptyLiteralContext(&p.LiteralContext)
p.parser = parser
- p.CopyFrom(ctx.(*LiteralContext))
+ p.CopyAll(ctx.(*LiteralContext))
return p
}
+
func (s *DoubleContext) GetSign() antlr.Token { return s.sign }
func (s *DoubleContext) GetTok() antlr.Token { return s.tok }
+
func (s *DoubleContext) SetSign(v antlr.Token) { s.sign = v }
func (s *DoubleContext) SetTok(v antlr.Token) { s.tok = v }
@@ -5178,6 +5868,7 @@ func (s *DoubleContext) MINUS() antlr.TerminalNode {
return s.GetToken(CELParserMINUS, 0)
}
+
func (s *DoubleContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterDouble(s)
@@ -5200,23 +5891,26 @@ func (s *DoubleContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type BoolTrueContext struct {
- *LiteralContext
+ LiteralContext
tok antlr.Token
}
func NewBoolTrueContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *BoolTrueContext {
var p = new(BoolTrueContext)
- p.LiteralContext = NewEmptyLiteralContext()
+ InitEmptyLiteralContext(&p.LiteralContext)
p.parser = parser
- p.CopyFrom(ctx.(*LiteralContext))
+ p.CopyAll(ctx.(*LiteralContext))
return p
}
+
func (s *BoolTrueContext) GetTok() antlr.Token { return s.tok }
+
func (s *BoolTrueContext) SetTok(v antlr.Token) { s.tok = v }
func (s *BoolTrueContext) GetRuleContext() antlr.RuleContext {
@@ -5227,6 +5921,7 @@ func (s *BoolTrueContext) CEL_TRUE() antlr.TerminalNode {
return s.GetToken(CELParserCEL_TRUE, 0)
}
+
func (s *BoolTrueContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterBoolTrue(s)
@@ -5249,26 +5944,29 @@ func (s *BoolTrueContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
+
type IntContext struct {
- *LiteralContext
+ LiteralContext
sign antlr.Token
- tok antlr.Token
+ tok antlr.Token
}
func NewIntContext(parser antlr.Parser, ctx antlr.ParserRuleContext) *IntContext {
var p = new(IntContext)
- p.LiteralContext = NewEmptyLiteralContext()
+ InitEmptyLiteralContext(&p.LiteralContext)
p.parser = parser
- p.CopyFrom(ctx.(*LiteralContext))
+ p.CopyAll(ctx.(*LiteralContext))
return p
}
+
func (s *IntContext) GetSign() antlr.Token { return s.sign }
func (s *IntContext) GetTok() antlr.Token { return s.tok }
+
func (s *IntContext) SetSign(v antlr.Token) { s.sign = v }
func (s *IntContext) SetTok(v antlr.Token) { s.tok = v }
@@ -5285,6 +5983,7 @@ func (s *IntContext) MINUS() antlr.TerminalNode {
return s.GetToken(CELParserMINUS, 0)
}
+
func (s *IntContext) EnterRule(listener antlr.ParseTreeListener) {
if listenerT, ok := listener.(CELListener); ok {
listenerT.EnterInt(s)
@@ -5307,40 +6006,31 @@ func (s *IntContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
}
}
-func (p *CELParser) Literal() (localctx ILiteralContext) {
- this := p
- _ = this
+
+func (p *CELParser) Literal() (localctx ILiteralContext) {
localctx = NewLiteralContext(p, p.GetParserRuleContext(), p.GetState())
p.EnterRule(localctx, 30, CELParserRULE_literal)
var _la int
- defer func() {
- p.ExitRule()
- }()
-
- defer func() {
- if err := recover(); err != nil {
- if v, ok := err.(antlr.RecognitionException); ok {
- localctx.SetException(v)
- p.GetErrorHandler().ReportError(p, v)
- p.GetErrorHandler().Recover(p, v)
- } else {
- panic(err)
- }
- }
- }()
-
p.SetState(248)
p.GetErrorHandler().Sync(p)
- switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 34, p.GetParserRuleContext()) {
+ if p.HasError() {
+ goto errorExit
+ }
+
+ switch p.GetInterpreter().AdaptivePredict(p.BaseParser, p.GetTokenStream(), 34, p.GetParserRuleContext()) {
case 1:
localctx = NewIntContext(p, localctx)
p.EnterOuterAlt(localctx, 1)
p.SetState(235)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserMINUS {
{
p.SetState(234)
@@ -5348,6 +6038,10 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserMINUS)
localctx.(*IntContext).sign = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
@@ -5357,8 +6051,13 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserNUM_INT)
localctx.(*IntContext).tok = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 2:
localctx = NewUintContext(p, localctx)
p.EnterOuterAlt(localctx, 2)
@@ -5368,15 +6067,24 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserNUM_UINT)
localctx.(*UintContext).tok = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 3:
localctx = NewDoubleContext(p, localctx)
p.EnterOuterAlt(localctx, 3)
p.SetState(240)
p.GetErrorHandler().Sync(p)
+ if p.HasError() {
+ goto errorExit
+ }
_la = p.GetTokenStream().LA(1)
+
if _la == CELParserMINUS {
{
p.SetState(239)
@@ -5384,6 +6092,10 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserMINUS)
localctx.(*DoubleContext).sign = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
}
@@ -5393,8 +6105,13 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserNUM_FLOAT)
localctx.(*DoubleContext).tok = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 4:
localctx = NewStringContext(p, localctx)
p.EnterOuterAlt(localctx, 4)
@@ -5404,8 +6121,13 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserSTRING)
localctx.(*StringContext).tok = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 5:
localctx = NewBytesContext(p, localctx)
p.EnterOuterAlt(localctx, 5)
@@ -5415,8 +6137,13 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserBYTES)
localctx.(*BytesContext).tok = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 6:
localctx = NewBoolTrueContext(p, localctx)
p.EnterOuterAlt(localctx, 6)
@@ -5426,8 +6153,13 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserCEL_TRUE)
localctx.(*BoolTrueContext).tok = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 7:
localctx = NewBoolFalseContext(p, localctx)
p.EnterOuterAlt(localctx, 7)
@@ -5437,8 +6169,13 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserCEL_FALSE)
localctx.(*BoolFalseContext).tok = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+
case 8:
localctx = NewNullContext(p, localctx)
p.EnterOuterAlt(localctx, 8)
@@ -5448,35 +6185,48 @@ func (p *CELParser) Literal() (localctx ILiteralContext) {
var _m = p.Match(CELParserNUL)
localctx.(*NullContext).tok = _m
+ if p.HasError() {
+ // Recognition error - abort rule
+ goto errorExit
+ }
}
+ case antlr.ATNInvalidAltNumber:
+ goto errorExit
}
+
+errorExit:
+ if p.HasError() {
+ v := p.GetError()
+ localctx.SetException(v)
+ p.GetErrorHandler().ReportError(p, v)
+ p.GetErrorHandler().Recover(p, v)
+ p.SetError(nil)
+ }
+ p.ExitRule()
return localctx
+ goto errorExit // Trick to prevent compiler error if the label is not used
}
+
func (p *CELParser) Sempred(localctx antlr.RuleContext, ruleIndex, predIndex int) bool {
switch ruleIndex {
case 4:
- var t *RelationContext = nil
- if localctx != nil {
- t = localctx.(*RelationContext)
- }
- return p.Relation_Sempred(t, predIndex)
+ var t *RelationContext = nil
+ if localctx != nil { t = localctx.(*RelationContext) }
+ return p.Relation_Sempred(t, predIndex)
case 5:
- var t *CalcContext = nil
- if localctx != nil {
- t = localctx.(*CalcContext)
- }
- return p.Calc_Sempred(t, predIndex)
+ var t *CalcContext = nil
+ if localctx != nil { t = localctx.(*CalcContext) }
+ return p.Calc_Sempred(t, predIndex)
case 7:
- var t *MemberContext = nil
- if localctx != nil {
- t = localctx.(*MemberContext)
- }
- return p.Member_Sempred(t, predIndex)
+ var t *MemberContext = nil
+ if localctx != nil { t = localctx.(*MemberContext) }
+ return p.Member_Sempred(t, predIndex)
+
default:
panic("No predicate with index: " + fmt.Sprint(ruleIndex))
@@ -5484,12 +6234,9 @@ func (p *CELParser) Sempred(localctx antlr.RuleContext, ruleIndex, predIndex int
}
func (p *CELParser) Relation_Sempred(localctx antlr.RuleContext, predIndex int) bool {
- this := p
- _ = this
-
switch predIndex {
case 0:
- return p.Precpred(p.GetParserRuleContext(), 1)
+ return p.Precpred(p.GetParserRuleContext(), 1)
default:
panic("No predicate with index: " + fmt.Sprint(predIndex))
@@ -5497,15 +6244,12 @@ func (p *CELParser) Relation_Sempred(localctx antlr.RuleContext, predIndex int)
}
func (p *CELParser) Calc_Sempred(localctx antlr.RuleContext, predIndex int) bool {
- this := p
- _ = this
-
switch predIndex {
case 1:
- return p.Precpred(p.GetParserRuleContext(), 2)
+ return p.Precpred(p.GetParserRuleContext(), 2)
case 2:
- return p.Precpred(p.GetParserRuleContext(), 1)
+ return p.Precpred(p.GetParserRuleContext(), 1)
default:
panic("No predicate with index: " + fmt.Sprint(predIndex))
@@ -5513,20 +6257,18 @@ func (p *CELParser) Calc_Sempred(localctx antlr.RuleContext, predIndex int) bool
}
func (p *CELParser) Member_Sempred(localctx antlr.RuleContext, predIndex int) bool {
- this := p
- _ = this
-
switch predIndex {
case 3:
- return p.Precpred(p.GetParserRuleContext(), 3)
+ return p.Precpred(p.GetParserRuleContext(), 3)
case 4:
- return p.Precpred(p.GetParserRuleContext(), 2)
+ return p.Precpred(p.GetParserRuleContext(), 2)
case 5:
- return p.Precpred(p.GetParserRuleContext(), 1)
+ return p.Precpred(p.GetParserRuleContext(), 1)
default:
panic("No predicate with index: " + fmt.Sprint(predIndex))
}
}
+
diff --git a/vendor/github.com/google/cel-go/parser/gen/cel_visitor.go b/vendor/github.com/google/cel-go/parser/gen/cel_visitor.go
index 2c54e2c..d2fbd56 100644
--- a/vendor/github.com/google/cel-go/parser/gen/cel_visitor.go
+++ b/vendor/github.com/google/cel-go/parser/gen/cel_visitor.go
@@ -1,7 +1,8 @@
-// Code generated from /Users/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.12.0. DO NOT EDIT.
+// Code generated from /usr/local/google/home/tswadell/go/src/github.com/google/cel-go/parser/gen/CEL.g4 by ANTLR 4.13.1. DO NOT EDIT.
package gen // CEL
-import "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+import "github.com/antlr4-go/antlr/v4"
+
// A complete Visitor for a parse tree produced by CELParser.
type CELVisitor interface {
@@ -105,4 +106,5 @@ type CELVisitor interface {
// Visit a parse tree produced by CELParser#Null.
VisitNull(ctx *NullContext) interface{}
-}
+
+} \ No newline at end of file
diff --git a/vendor/github.com/google/cel-go/parser/gen/generate.sh b/vendor/github.com/google/cel-go/parser/gen/generate.sh
index 389107c..27a9559 100644
--- a/vendor/github.com/google/cel-go/parser/gen/generate.sh
+++ b/vendor/github.com/google/cel-go/parser/gen/generate.sh
@@ -27,7 +27,7 @@
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
# Generate AntLR artifacts.
-java -Xmx500M -cp ${DIR}/antlr-4.12.0-complete.jar org.antlr.v4.Tool \
+java -Xmx500M -cp ${DIR}/antlr-4.13.1-complete.jar org.antlr.v4.Tool \
-Dlanguage=Go \
-package gen \
-o ${DIR} \
diff --git a/vendor/github.com/google/cel-go/parser/helper.go b/vendor/github.com/google/cel-go/parser/helper.go
index 52d7fd8..9f09ead 100644
--- a/vendor/github.com/google/cel-go/parser/helper.go
+++ b/vendor/github.com/google/cel-go/parser/helper.go
@@ -17,346 +17,308 @@ package parser
import (
"sync"
- antlr "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+ antlr "github.com/antlr4-go/antlr/v4"
"github.com/google/cel-go/common"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/ast"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
)
type parserHelper struct {
- source common.Source
- nextID int64
- positions map[int64]int32
- macroCalls map[int64]*exprpb.Expr
+ exprFactory ast.ExprFactory
+ source common.Source
+ sourceInfo *ast.SourceInfo
+ nextID int64
}
-func newParserHelper(source common.Source) *parserHelper {
+func newParserHelper(source common.Source, fac ast.ExprFactory) *parserHelper {
return &parserHelper{
- source: source,
- nextID: 1,
- positions: make(map[int64]int32),
- macroCalls: make(map[int64]*exprpb.Expr),
+ exprFactory: fac,
+ source: source,
+ sourceInfo: ast.NewSourceInfo(source),
+ nextID: 1,
}
}
-func (p *parserHelper) getSourceInfo() *exprpb.SourceInfo {
- return &exprpb.SourceInfo{
- Location: p.source.Description(),
- Positions: p.positions,
- LineOffsets: p.source.LineOffsets(),
- MacroCalls: p.macroCalls}
+func (p *parserHelper) getSourceInfo() *ast.SourceInfo {
+ return p.sourceInfo
}
-func (p *parserHelper) newLiteral(ctx any, value *exprpb.Constant) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_ConstExpr{ConstExpr: value}
- return exprNode
+func (p *parserHelper) newLiteral(ctx any, value ref.Val) ast.Expr {
+ return p.exprFactory.NewLiteral(p.newID(ctx), value)
}
-func (p *parserHelper) newLiteralBool(ctx any, value bool) *exprpb.Expr {
- return p.newLiteral(ctx,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_BoolValue{BoolValue: value}})
+func (p *parserHelper) newLiteralBool(ctx any, value bool) ast.Expr {
+ return p.newLiteral(ctx, types.Bool(value))
}
-func (p *parserHelper) newLiteralString(ctx any, value string) *exprpb.Expr {
- return p.newLiteral(ctx,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_StringValue{StringValue: value}})
+func (p *parserHelper) newLiteralString(ctx any, value string) ast.Expr {
+ return p.newLiteral(ctx, types.String(value))
}
-func (p *parserHelper) newLiteralBytes(ctx any, value []byte) *exprpb.Expr {
- return p.newLiteral(ctx,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_BytesValue{BytesValue: value}})
+func (p *parserHelper) newLiteralBytes(ctx any, value []byte) ast.Expr {
+ return p.newLiteral(ctx, types.Bytes(value))
}
-func (p *parserHelper) newLiteralInt(ctx any, value int64) *exprpb.Expr {
- return p.newLiteral(ctx,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_Int64Value{Int64Value: value}})
+func (p *parserHelper) newLiteralInt(ctx any, value int64) ast.Expr {
+ return p.newLiteral(ctx, types.Int(value))
}
-func (p *parserHelper) newLiteralUint(ctx any, value uint64) *exprpb.Expr {
- return p.newLiteral(ctx, &exprpb.Constant{ConstantKind: &exprpb.Constant_Uint64Value{Uint64Value: value}})
+func (p *parserHelper) newLiteralUint(ctx any, value uint64) ast.Expr {
+ return p.newLiteral(ctx, types.Uint(value))
}
-func (p *parserHelper) newLiteralDouble(ctx any, value float64) *exprpb.Expr {
- return p.newLiteral(ctx,
- &exprpb.Constant{ConstantKind: &exprpb.Constant_DoubleValue{DoubleValue: value}})
+func (p *parserHelper) newLiteralDouble(ctx any, value float64) ast.Expr {
+ return p.newLiteral(ctx, types.Double(value))
}
-func (p *parserHelper) newIdent(ctx any, name string) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_IdentExpr{IdentExpr: &exprpb.Expr_Ident{Name: name}}
- return exprNode
+func (p *parserHelper) newIdent(ctx any, name string) ast.Expr {
+ return p.exprFactory.NewIdent(p.newID(ctx), name)
}
-func (p *parserHelper) newSelect(ctx any, operand *exprpb.Expr, field string) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_SelectExpr{
- SelectExpr: &exprpb.Expr_Select{Operand: operand, Field: field}}
- return exprNode
+func (p *parserHelper) newSelect(ctx any, operand ast.Expr, field string) ast.Expr {
+ return p.exprFactory.NewSelect(p.newID(ctx), operand, field)
}
-func (p *parserHelper) newPresenceTest(ctx any, operand *exprpb.Expr, field string) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_SelectExpr{
- SelectExpr: &exprpb.Expr_Select{Operand: operand, Field: field, TestOnly: true}}
- return exprNode
+func (p *parserHelper) newPresenceTest(ctx any, operand ast.Expr, field string) ast.Expr {
+ return p.exprFactory.NewPresenceTest(p.newID(ctx), operand, field)
}
-func (p *parserHelper) newGlobalCall(ctx any, function string, args ...*exprpb.Expr) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_CallExpr{
- CallExpr: &exprpb.Expr_Call{Function: function, Args: args}}
- return exprNode
+func (p *parserHelper) newGlobalCall(ctx any, function string, args ...ast.Expr) ast.Expr {
+ return p.exprFactory.NewCall(p.newID(ctx), function, args...)
}
-func (p *parserHelper) newReceiverCall(ctx any, function string, target *exprpb.Expr, args ...*exprpb.Expr) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_CallExpr{
- CallExpr: &exprpb.Expr_Call{Function: function, Target: target, Args: args}}
- return exprNode
+func (p *parserHelper) newReceiverCall(ctx any, function string, target ast.Expr, args ...ast.Expr) ast.Expr {
+ return p.exprFactory.NewMemberCall(p.newID(ctx), function, target, args...)
}
-func (p *parserHelper) newList(ctx any, elements []*exprpb.Expr, optionals ...int32) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_ListExpr{
- ListExpr: &exprpb.Expr_CreateList{
- Elements: elements,
- OptionalIndices: optionals,
- }}
- return exprNode
+func (p *parserHelper) newList(ctx any, elements []ast.Expr, optionals ...int32) ast.Expr {
+ return p.exprFactory.NewList(p.newID(ctx), elements, optionals)
}
-func (p *parserHelper) newMap(ctx any, entries ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_StructExpr{
- StructExpr: &exprpb.Expr_CreateStruct{Entries: entries}}
- return exprNode
+func (p *parserHelper) newMap(ctx any, entries ...ast.EntryExpr) ast.Expr {
+ return p.exprFactory.NewMap(p.newID(ctx), entries)
}
-func (p *parserHelper) newMapEntry(entryID int64, key *exprpb.Expr, value *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry {
- return &exprpb.Expr_CreateStruct_Entry{
- Id: entryID,
- KeyKind: &exprpb.Expr_CreateStruct_Entry_MapKey{MapKey: key},
- Value: value,
- OptionalEntry: optional,
- }
+func (p *parserHelper) newMapEntry(entryID int64, key ast.Expr, value ast.Expr, optional bool) ast.EntryExpr {
+ return p.exprFactory.NewMapEntry(entryID, key, value, optional)
}
-func (p *parserHelper) newObject(ctx any, typeName string, entries ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_StructExpr{
- StructExpr: &exprpb.Expr_CreateStruct{
- MessageName: typeName,
- Entries: entries,
- },
- }
- return exprNode
+func (p *parserHelper) newObject(ctx any, typeName string, fields ...ast.EntryExpr) ast.Expr {
+ return p.exprFactory.NewStruct(p.newID(ctx), typeName, fields)
}
-func (p *parserHelper) newObjectField(fieldID int64, field string, value *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry {
- return &exprpb.Expr_CreateStruct_Entry{
- Id: fieldID,
- KeyKind: &exprpb.Expr_CreateStruct_Entry_FieldKey{FieldKey: field},
- Value: value,
- OptionalEntry: optional,
- }
+func (p *parserHelper) newObjectField(fieldID int64, field string, value ast.Expr, optional bool) ast.EntryExpr {
+ return p.exprFactory.NewStructField(fieldID, field, value, optional)
}
-func (p *parserHelper) newComprehension(ctx any, iterVar string,
- iterRange *exprpb.Expr,
+func (p *parserHelper) newComprehension(ctx any,
+ iterRange ast.Expr,
+ iterVar,
accuVar string,
- accuInit *exprpb.Expr,
- condition *exprpb.Expr,
- step *exprpb.Expr,
- result *exprpb.Expr) *exprpb.Expr {
- exprNode := p.newExpr(ctx)
- exprNode.ExprKind = &exprpb.Expr_ComprehensionExpr{
- ComprehensionExpr: &exprpb.Expr_Comprehension{
- AccuVar: accuVar,
- AccuInit: accuInit,
- IterVar: iterVar,
- IterRange: iterRange,
- LoopCondition: condition,
- LoopStep: step,
- Result: result}}
- return exprNode
-}
-
-func (p *parserHelper) newExpr(ctx any) *exprpb.Expr {
- id, isID := ctx.(int64)
- if isID {
- return &exprpb.Expr{Id: id}
+ accuInit ast.Expr,
+ condition ast.Expr,
+ step ast.Expr,
+ result ast.Expr) ast.Expr {
+ return p.exprFactory.NewComprehension(
+ p.newID(ctx), iterRange, iterVar, accuVar, accuInit, condition, step, result)
+}
+
+func (p *parserHelper) newComprehensionTwoVar(ctx any,
+ iterRange ast.Expr,
+ iterVar, iterVar2,
+ accuVar string,
+ accuInit ast.Expr,
+ condition ast.Expr,
+ step ast.Expr,
+ result ast.Expr) ast.Expr {
+ return p.exprFactory.NewComprehensionTwoVar(
+ p.newID(ctx), iterRange, iterVar, iterVar2, accuVar, accuInit, condition, step, result)
+}
+
+func (p *parserHelper) newID(ctx any) int64 {
+ if id, isID := ctx.(int64); isID {
+ return id
}
- return &exprpb.Expr{Id: p.id(ctx)}
+ return p.id(ctx)
+}
+
+func (p *parserHelper) newExpr(ctx any) ast.Expr {
+ return p.exprFactory.NewUnspecifiedExpr(p.newID(ctx))
}
func (p *parserHelper) id(ctx any) int64 {
- var location common.Location
- switch ctx.(type) {
+ var offset ast.OffsetRange
+ switch c := ctx.(type) {
case antlr.ParserRuleContext:
- token := (ctx.(antlr.ParserRuleContext)).GetStart()
- location = p.source.NewLocation(token.GetLine(), token.GetColumn())
+ start := c.GetStart()
+ offset.Start = p.sourceInfo.ComputeOffset(int32(start.GetLine()), int32(start.GetColumn()))
+ offset.Stop = offset.Start + int32(len(c.GetText()))
case antlr.Token:
- token := ctx.(antlr.Token)
- location = p.source.NewLocation(token.GetLine(), token.GetColumn())
+ offset.Start = p.sourceInfo.ComputeOffset(int32(c.GetLine()), int32(c.GetColumn()))
+ offset.Stop = offset.Start + int32(len(c.GetText()))
case common.Location:
- location = ctx.(common.Location)
+ offset.Start = p.sourceInfo.ComputeOffset(int32(c.Line()), int32(c.Column()))
+ offset.Stop = offset.Start
+ case ast.OffsetRange:
+ offset = c
default:
// This should only happen if the ctx is nil
return -1
}
id := p.nextID
- p.positions[id], _ = p.source.LocationOffset(location)
+ p.sourceInfo.SetOffsetRange(id, offset)
p.nextID++
return id
}
+func (p *parserHelper) deleteID(id int64) {
+ p.sourceInfo.ClearOffsetRange(id)
+ if id == p.nextID-1 {
+ p.nextID--
+ }
+}
+
func (p *parserHelper) getLocation(id int64) common.Location {
- characterOffset := p.positions[id]
- location, _ := p.source.OffsetLocation(characterOffset)
- return location
+ return p.sourceInfo.GetStartLocation(id)
+}
+
+func (p *parserHelper) getLocationByOffset(offset int32) common.Location {
+ return p.getSourceInfo().GetLocationByOffset(offset)
}
// buildMacroCallArg iterates the expression and returns a new expression
// where all macros have been replaced by their IDs in MacroCalls
-func (p *parserHelper) buildMacroCallArg(expr *exprpb.Expr) *exprpb.Expr {
- if _, found := p.macroCalls[expr.GetId()]; found {
- return &exprpb.Expr{Id: expr.GetId()}
+func (p *parserHelper) buildMacroCallArg(expr ast.Expr) ast.Expr {
+ if _, found := p.sourceInfo.GetMacroCall(expr.ID()); found {
+ return p.exprFactory.NewUnspecifiedExpr(expr.ID())
}
- switch expr.GetExprKind().(type) {
- case *exprpb.Expr_CallExpr:
+ switch expr.Kind() {
+ case ast.CallKind:
// Iterate the AST from `expr` recursively looking for macros. Because we are at most
// starting from the top level macro, this recursion is bounded by the size of the AST. This
// means that the depth check on the AST during parsing will catch recursion overflows
// before we get to here.
- macroTarget := expr.GetCallExpr().GetTarget()
- if macroTarget != nil {
- macroTarget = p.buildMacroCallArg(macroTarget)
- }
- macroArgs := make([]*exprpb.Expr, len(expr.GetCallExpr().GetArgs()))
- for index, arg := range expr.GetCallExpr().GetArgs() {
+ call := expr.AsCall()
+ macroArgs := make([]ast.Expr, len(call.Args()))
+ for index, arg := range call.Args() {
macroArgs[index] = p.buildMacroCallArg(arg)
}
- return &exprpb.Expr{
- Id: expr.GetId(),
- ExprKind: &exprpb.Expr_CallExpr{
- CallExpr: &exprpb.Expr_Call{
- Target: macroTarget,
- Function: expr.GetCallExpr().GetFunction(),
- Args: macroArgs,
- },
- },
+ if !call.IsMemberFunction() {
+ return p.exprFactory.NewCall(expr.ID(), call.FunctionName(), macroArgs...)
}
- case *exprpb.Expr_ListExpr:
- listExpr := expr.GetListExpr()
- macroListArgs := make([]*exprpb.Expr, len(listExpr.GetElements()))
- for i, elem := range listExpr.GetElements() {
+ macroTarget := p.buildMacroCallArg(call.Target())
+ return p.exprFactory.NewMemberCall(expr.ID(), call.FunctionName(), macroTarget, macroArgs...)
+ case ast.ListKind:
+ list := expr.AsList()
+ macroListArgs := make([]ast.Expr, list.Size())
+ for i, elem := range list.Elements() {
macroListArgs[i] = p.buildMacroCallArg(elem)
}
- return &exprpb.Expr{
- Id: expr.GetId(),
- ExprKind: &exprpb.Expr_ListExpr{
- ListExpr: &exprpb.Expr_CreateList{
- Elements: macroListArgs,
- },
- },
- }
+ return p.exprFactory.NewList(expr.ID(), macroListArgs, list.OptionalIndices())
}
-
return expr
}
// addMacroCall adds the macro the the MacroCalls map in source info. If a macro has args/subargs/target
// that are macros, their ID will be stored instead for later self-lookups.
-func (p *parserHelper) addMacroCall(exprID int64, function string, target *exprpb.Expr, args ...*exprpb.Expr) {
- macroTarget := target
- if target != nil {
- if _, found := p.macroCalls[target.GetId()]; found {
- macroTarget = &exprpb.Expr{Id: target.GetId()}
- } else {
- macroTarget = p.buildMacroCallArg(target)
- }
- }
-
- macroArgs := make([]*exprpb.Expr, len(args))
+func (p *parserHelper) addMacroCall(exprID int64, function string, target ast.Expr, args ...ast.Expr) {
+ macroArgs := make([]ast.Expr, len(args))
for index, arg := range args {
macroArgs[index] = p.buildMacroCallArg(arg)
}
-
- p.macroCalls[exprID] = &exprpb.Expr{
- ExprKind: &exprpb.Expr_CallExpr{
- CallExpr: &exprpb.Expr_Call{
- Target: macroTarget,
- Function: function,
- Args: macroArgs,
- },
- },
+ if target == nil {
+ p.sourceInfo.SetMacroCall(exprID, p.exprFactory.NewCall(0, function, macroArgs...))
+ return
+ }
+ macroTarget := target
+ if _, found := p.sourceInfo.GetMacroCall(target.ID()); found {
+ macroTarget = p.exprFactory.NewUnspecifiedExpr(target.ID())
+ } else {
+ macroTarget = p.buildMacroCallArg(target)
}
+ p.sourceInfo.SetMacroCall(exprID, p.exprFactory.NewMemberCall(0, function, macroTarget, macroArgs...))
}
-// balancer performs tree balancing on operators whose arguments are of equal precedence.
+// logicManager compacts logical trees into a more efficient structure which is semantically
+// equivalent with how the logic graph is constructed by the ANTLR parser.
//
-// The purpose of the balancer is to ensure a compact serialization format for the logical &&, ||
+// The purpose of the logicManager is to ensure a compact serialization format for the logical &&, ||
// operators which have a tendency to create long DAGs which are skewed in one direction. Since the
// operators are commutative re-ordering the terms *must not* affect the evaluation result.
//
-// Re-balancing the terms is a safe, if somewhat controversial choice. A better solution would be
-// to make these functions variadic and update both the checker and interpreter to understand this;
-// however, this is a more complex change.
-//
-// TODO: Consider replacing tree-balancing with variadic logical &&, || within the parser, checker,
-// and interpreter.
-type balancer struct {
- helper *parserHelper
- function string
- terms []*exprpb.Expr
- ops []int64
-}
-
-// newBalancer creates a balancer instance bound to a specific function and its first term.
-func newBalancer(h *parserHelper, function string, term *exprpb.Expr) *balancer {
- return &balancer{
- helper: h,
- function: function,
- terms: []*exprpb.Expr{term},
- ops: []int64{},
+// The logic manager will either render the terms to N-chained && / || operators as a single logical
+// call with N-terms, or will rebalance the tree. Rebalancing the terms is a safe, if somewhat
+// controversial choice as it alters the traditional order of execution assumptions present in most
+// expressions.
+type logicManager struct {
+ exprFactory ast.ExprFactory
+ function string
+ terms []ast.Expr
+ ops []int64
+ variadicASTs bool
+}
+
+// newVariadicLogicManager creates a logic manager instance bound to a specific function and its first term.
+func newVariadicLogicManager(fac ast.ExprFactory, function string, term ast.Expr) *logicManager {
+ return &logicManager{
+ exprFactory: fac,
+ function: function,
+ terms: []ast.Expr{term},
+ ops: []int64{},
+ variadicASTs: true,
+ }
+}
+
+// newBalancingLogicManager creates a logic manager instance bound to a specific function and its first term.
+func newBalancingLogicManager(fac ast.ExprFactory, function string, term ast.Expr) *logicManager {
+ return &logicManager{
+ exprFactory: fac,
+ function: function,
+ terms: []ast.Expr{term},
+ ops: []int64{},
+ variadicASTs: false,
}
}
// addTerm adds an operation identifier and term to the set of terms to be balanced.
-func (b *balancer) addTerm(op int64, term *exprpb.Expr) {
- b.terms = append(b.terms, term)
- b.ops = append(b.ops, op)
+func (l *logicManager) addTerm(op int64, term ast.Expr) {
+ l.terms = append(l.terms, term)
+ l.ops = append(l.ops, op)
}
-// balance creates a balanced tree from the sub-terms and returns the final Expr value.
-func (b *balancer) balance() *exprpb.Expr {
- if len(b.terms) == 1 {
- return b.terms[0]
+// toExpr renders the logic graph into an Expr value, either balancing a tree of logical
+// operations or creating a variadic representation of the logical operator.
+func (l *logicManager) toExpr() ast.Expr {
+ if len(l.terms) == 1 {
+ return l.terms[0]
+ }
+ if l.variadicASTs {
+ return l.exprFactory.NewCall(l.ops[0], l.function, l.terms...)
}
- return b.balancedTree(0, len(b.ops)-1)
+ return l.balancedTree(0, len(l.ops)-1)
}
// balancedTree recursively balances the terms provided to a commutative operator.
-func (b *balancer) balancedTree(lo, hi int) *exprpb.Expr {
+func (l *logicManager) balancedTree(lo, hi int) ast.Expr {
mid := (lo + hi + 1) / 2
- var left *exprpb.Expr
+ var left ast.Expr
if mid == lo {
- left = b.terms[mid]
+ left = l.terms[mid]
} else {
- left = b.balancedTree(lo, mid-1)
+ left = l.balancedTree(lo, mid-1)
}
- var right *exprpb.Expr
+ var right ast.Expr
if mid == hi {
- right = b.terms[mid+1]
+ right = l.terms[mid+1]
} else {
- right = b.balancedTree(mid+1, hi)
+ right = l.balancedTree(mid+1, hi)
}
- return b.helper.newGlobalCall(b.ops[mid], b.function, left, right)
+ return l.exprFactory.NewCall(l.ops[mid], l.function, left, right)
}
type exprHelper struct {
@@ -369,197 +331,173 @@ func (e *exprHelper) nextMacroID() int64 {
}
// Copy implements the ExprHelper interface method by producing a copy of the input Expr value
-// with a fresh set of numeric identifiers the Expr and all its descendents.
-func (e *exprHelper) Copy(expr *exprpb.Expr) *exprpb.Expr {
- copy := e.parserHelper.newExpr(e.parserHelper.getLocation(expr.GetId()))
- switch expr.GetExprKind().(type) {
- case *exprpb.Expr_ConstExpr:
- copy.ExprKind = &exprpb.Expr_ConstExpr{ConstExpr: expr.GetConstExpr()}
- case *exprpb.Expr_IdentExpr:
- copy.ExprKind = &exprpb.Expr_IdentExpr{IdentExpr: expr.GetIdentExpr()}
- case *exprpb.Expr_SelectExpr:
- op := expr.GetSelectExpr().GetOperand()
- copy.ExprKind = &exprpb.Expr_SelectExpr{SelectExpr: &exprpb.Expr_Select{
- Operand: e.Copy(op),
- Field: expr.GetSelectExpr().GetField(),
- TestOnly: expr.GetSelectExpr().GetTestOnly(),
- }}
- case *exprpb.Expr_CallExpr:
- call := expr.GetCallExpr()
- target := call.GetTarget()
- if target != nil {
- target = e.Copy(target)
+// with a fresh set of numeric identifiers the Expr and all its descendants.
+func (e *exprHelper) Copy(expr ast.Expr) ast.Expr {
+ offsetRange, _ := e.parserHelper.sourceInfo.GetOffsetRange(expr.ID())
+ copyID := e.parserHelper.newID(offsetRange)
+ switch expr.Kind() {
+ case ast.LiteralKind:
+ return e.exprFactory.NewLiteral(copyID, expr.AsLiteral())
+ case ast.IdentKind:
+ return e.exprFactory.NewIdent(copyID, expr.AsIdent())
+ case ast.SelectKind:
+ sel := expr.AsSelect()
+ op := e.Copy(sel.Operand())
+ if sel.IsTestOnly() {
+ return e.exprFactory.NewPresenceTest(copyID, op, sel.FieldName())
}
- args := call.GetArgs()
- argsCopy := make([]*exprpb.Expr, len(args))
+ return e.exprFactory.NewSelect(copyID, op, sel.FieldName())
+ case ast.CallKind:
+ call := expr.AsCall()
+ args := call.Args()
+ argsCopy := make([]ast.Expr, len(args))
for i, arg := range args {
argsCopy[i] = e.Copy(arg)
}
- copy.ExprKind = &exprpb.Expr_CallExpr{
- CallExpr: &exprpb.Expr_Call{
- Function: call.GetFunction(),
- Target: target,
- Args: argsCopy,
- },
+ if !call.IsMemberFunction() {
+ return e.exprFactory.NewCall(copyID, call.FunctionName(), argsCopy...)
}
- case *exprpb.Expr_ListExpr:
- elems := expr.GetListExpr().GetElements()
- elemsCopy := make([]*exprpb.Expr, len(elems))
+ return e.exprFactory.NewMemberCall(copyID, call.FunctionName(), e.Copy(call.Target()), argsCopy...)
+ case ast.ListKind:
+ list := expr.AsList()
+ elems := list.Elements()
+ elemsCopy := make([]ast.Expr, len(elems))
for i, elem := range elems {
elemsCopy[i] = e.Copy(elem)
}
- copy.ExprKind = &exprpb.Expr_ListExpr{
- ListExpr: &exprpb.Expr_CreateList{Elements: elemsCopy},
+ return e.exprFactory.NewList(copyID, elemsCopy, list.OptionalIndices())
+ case ast.MapKind:
+ m := expr.AsMap()
+ entries := m.Entries()
+ entriesCopy := make([]ast.EntryExpr, len(entries))
+ for i, en := range entries {
+ entry := en.AsMapEntry()
+ entryID := e.nextMacroID()
+ entriesCopy[i] = e.exprFactory.NewMapEntry(entryID,
+ e.Copy(entry.Key()), e.Copy(entry.Value()), entry.IsOptional())
}
- case *exprpb.Expr_StructExpr:
- entries := expr.GetStructExpr().GetEntries()
- entriesCopy := make([]*exprpb.Expr_CreateStruct_Entry, len(entries))
- for i, entry := range entries {
- entryCopy := &exprpb.Expr_CreateStruct_Entry{}
- entryCopy.Id = e.nextMacroID()
- switch entry.GetKeyKind().(type) {
- case *exprpb.Expr_CreateStruct_Entry_FieldKey:
- entryCopy.KeyKind = &exprpb.Expr_CreateStruct_Entry_FieldKey{
- FieldKey: entry.GetFieldKey(),
- }
- case *exprpb.Expr_CreateStruct_Entry_MapKey:
- entryCopy.KeyKind = &exprpb.Expr_CreateStruct_Entry_MapKey{
- MapKey: e.Copy(entry.GetMapKey()),
- }
- }
- entryCopy.Value = e.Copy(entry.GetValue())
- entriesCopy[i] = entryCopy
- }
- copy.ExprKind = &exprpb.Expr_StructExpr{
- StructExpr: &exprpb.Expr_CreateStruct{
- MessageName: expr.GetStructExpr().GetMessageName(),
- Entries: entriesCopy,
- },
- }
- case *exprpb.Expr_ComprehensionExpr:
- iterRange := e.Copy(expr.GetComprehensionExpr().GetIterRange())
- accuInit := e.Copy(expr.GetComprehensionExpr().GetAccuInit())
- cond := e.Copy(expr.GetComprehensionExpr().GetLoopCondition())
- step := e.Copy(expr.GetComprehensionExpr().GetLoopStep())
- result := e.Copy(expr.GetComprehensionExpr().GetResult())
- copy.ExprKind = &exprpb.Expr_ComprehensionExpr{
- ComprehensionExpr: &exprpb.Expr_Comprehension{
- IterRange: iterRange,
- IterVar: expr.GetComprehensionExpr().GetIterVar(),
- AccuInit: accuInit,
- AccuVar: expr.GetComprehensionExpr().GetAccuVar(),
- LoopCondition: cond,
- LoopStep: step,
- Result: result,
- },
+ return e.exprFactory.NewMap(copyID, entriesCopy)
+ case ast.StructKind:
+ s := expr.AsStruct()
+ fields := s.Fields()
+ fieldsCopy := make([]ast.EntryExpr, len(fields))
+ for i, f := range fields {
+ field := f.AsStructField()
+ fieldID := e.nextMacroID()
+ fieldsCopy[i] = e.exprFactory.NewStructField(fieldID,
+ field.Name(), e.Copy(field.Value()), field.IsOptional())
}
+ return e.exprFactory.NewStruct(copyID, s.TypeName(), fieldsCopy)
+ case ast.ComprehensionKind:
+ compre := expr.AsComprehension()
+ iterRange := e.Copy(compre.IterRange())
+ accuInit := e.Copy(compre.AccuInit())
+ cond := e.Copy(compre.LoopCondition())
+ step := e.Copy(compre.LoopStep())
+ result := e.Copy(compre.Result())
+ // All comprehensions can be represented by the two-variable comprehension since the
+ // differentiation between one and two-variable is whether the iterVar2 value is non-empty.
+ return e.exprFactory.NewComprehensionTwoVar(copyID,
+ iterRange, compre.IterVar(), compre.IterVar2(), compre.AccuVar(), accuInit, cond, step, result)
}
- return copy
-}
-
-// LiteralBool implements the ExprHelper interface method.
-func (e *exprHelper) LiteralBool(value bool) *exprpb.Expr {
- return e.parserHelper.newLiteralBool(e.nextMacroID(), value)
-}
-
-// LiteralBytes implements the ExprHelper interface method.
-func (e *exprHelper) LiteralBytes(value []byte) *exprpb.Expr {
- return e.parserHelper.newLiteralBytes(e.nextMacroID(), value)
-}
-
-// LiteralDouble implements the ExprHelper interface method.
-func (e *exprHelper) LiteralDouble(value float64) *exprpb.Expr {
- return e.parserHelper.newLiteralDouble(e.nextMacroID(), value)
-}
-
-// LiteralInt implements the ExprHelper interface method.
-func (e *exprHelper) LiteralInt(value int64) *exprpb.Expr {
- return e.parserHelper.newLiteralInt(e.nextMacroID(), value)
-}
-
-// LiteralString implements the ExprHelper interface method.
-func (e *exprHelper) LiteralString(value string) *exprpb.Expr {
- return e.parserHelper.newLiteralString(e.nextMacroID(), value)
+ return e.exprFactory.NewUnspecifiedExpr(copyID)
}
-// LiteralUint implements the ExprHelper interface method.
-func (e *exprHelper) LiteralUint(value uint64) *exprpb.Expr {
- return e.parserHelper.newLiteralUint(e.nextMacroID(), value)
+// NewLiteral implements the ExprHelper interface method.
+func (e *exprHelper) NewLiteral(value ref.Val) ast.Expr {
+ return e.exprFactory.NewLiteral(e.nextMacroID(), value)
}
// NewList implements the ExprHelper interface method.
-func (e *exprHelper) NewList(elems ...*exprpb.Expr) *exprpb.Expr {
- return e.parserHelper.newList(e.nextMacroID(), elems)
+func (e *exprHelper) NewList(elems ...ast.Expr) ast.Expr {
+ return e.exprFactory.NewList(e.nextMacroID(), elems, []int32{})
}
// NewMap implements the ExprHelper interface method.
-func (e *exprHelper) NewMap(entries ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr {
- return e.parserHelper.newMap(e.nextMacroID(), entries...)
+func (e *exprHelper) NewMap(entries ...ast.EntryExpr) ast.Expr {
+ return e.exprFactory.NewMap(e.nextMacroID(), entries)
}
// NewMapEntry implements the ExprHelper interface method.
-func (e *exprHelper) NewMapEntry(key *exprpb.Expr, val *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry {
- return e.parserHelper.newMapEntry(e.nextMacroID(), key, val, optional)
+func (e *exprHelper) NewMapEntry(key ast.Expr, val ast.Expr, optional bool) ast.EntryExpr {
+ return e.exprFactory.NewMapEntry(e.nextMacroID(), key, val, optional)
}
-// NewObject implements the ExprHelper interface method.
-func (e *exprHelper) NewObject(typeName string, fieldInits ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr {
- return e.parserHelper.newObject(e.nextMacroID(), typeName, fieldInits...)
+// NewStruct implements the ExprHelper interface method.
+func (e *exprHelper) NewStruct(typeName string, fieldInits ...ast.EntryExpr) ast.Expr {
+ return e.exprFactory.NewStruct(e.nextMacroID(), typeName, fieldInits)
}
-// NewObjectFieldInit implements the ExprHelper interface method.
-func (e *exprHelper) NewObjectFieldInit(field string, init *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry {
- return e.parserHelper.newObjectField(e.nextMacroID(), field, init, optional)
+// NewStructField implements the ExprHelper interface method.
+func (e *exprHelper) NewStructField(field string, init ast.Expr, optional bool) ast.EntryExpr {
+ return e.exprFactory.NewStructField(e.nextMacroID(), field, init, optional)
}
-// Fold implements the ExprHelper interface method.
-func (e *exprHelper) Fold(iterVar string,
- iterRange *exprpb.Expr,
+// NewComprehension implements the ExprHelper interface method.
+func (e *exprHelper) NewComprehension(
+ iterRange ast.Expr,
+ iterVar string,
accuVar string,
- accuInit *exprpb.Expr,
- condition *exprpb.Expr,
- step *exprpb.Expr,
- result *exprpb.Expr) *exprpb.Expr {
- return e.parserHelper.newComprehension(
- e.nextMacroID(), iterVar, iterRange, accuVar, accuInit, condition, step, result)
+ accuInit ast.Expr,
+ condition ast.Expr,
+ step ast.Expr,
+ result ast.Expr) ast.Expr {
+ return e.exprFactory.NewComprehension(
+ e.nextMacroID(), iterRange, iterVar, accuVar, accuInit, condition, step, result)
+}
+
+// NewComprehensionTwoVar implements the ExprHelper interface method.
+func (e *exprHelper) NewComprehensionTwoVar(
+ iterRange ast.Expr,
+ iterVar,
+ iterVar2,
+ accuVar string,
+ accuInit,
+ condition,
+ step,
+ result ast.Expr) ast.Expr {
+ return e.exprFactory.NewComprehensionTwoVar(
+ e.nextMacroID(), iterRange, iterVar, iterVar2, accuVar, accuInit, condition, step, result)
}
-// Ident implements the ExprHelper interface method.
-func (e *exprHelper) Ident(name string) *exprpb.Expr {
- return e.parserHelper.newIdent(e.nextMacroID(), name)
+// NewIdent implements the ExprHelper interface method.
+func (e *exprHelper) NewIdent(name string) ast.Expr {
+ return e.exprFactory.NewIdent(e.nextMacroID(), name)
}
-// AccuIdent implements the ExprHelper interface method.
-func (e *exprHelper) AccuIdent() *exprpb.Expr {
- return e.parserHelper.newIdent(e.nextMacroID(), AccumulatorName)
+// NewAccuIdent implements the ExprHelper interface method.
+func (e *exprHelper) NewAccuIdent() ast.Expr {
+ return e.exprFactory.NewAccuIdent(e.nextMacroID())
}
-// GlobalCall implements the ExprHelper interface method.
-func (e *exprHelper) GlobalCall(function string, args ...*exprpb.Expr) *exprpb.Expr {
- return e.parserHelper.newGlobalCall(e.nextMacroID(), function, args...)
+// NewGlobalCall implements the ExprHelper interface method.
+func (e *exprHelper) NewCall(function string, args ...ast.Expr) ast.Expr {
+ return e.exprFactory.NewCall(e.nextMacroID(), function, args...)
}
-// ReceiverCall implements the ExprHelper interface method.
-func (e *exprHelper) ReceiverCall(function string,
- target *exprpb.Expr, args ...*exprpb.Expr) *exprpb.Expr {
- return e.parserHelper.newReceiverCall(e.nextMacroID(), function, target, args...)
+// NewMemberCall implements the ExprHelper interface method.
+func (e *exprHelper) NewMemberCall(function string, target ast.Expr, args ...ast.Expr) ast.Expr {
+ return e.exprFactory.NewMemberCall(e.nextMacroID(), function, target, args...)
}
-// PresenceTest implements the ExprHelper interface method.
-func (e *exprHelper) PresenceTest(operand *exprpb.Expr, field string) *exprpb.Expr {
- return e.parserHelper.newPresenceTest(e.nextMacroID(), operand, field)
+// NewPresenceTest implements the ExprHelper interface method.
+func (e *exprHelper) NewPresenceTest(operand ast.Expr, field string) ast.Expr {
+ return e.exprFactory.NewPresenceTest(e.nextMacroID(), operand, field)
}
-// Select implements the ExprHelper interface method.
-func (e *exprHelper) Select(operand *exprpb.Expr, field string) *exprpb.Expr {
- return e.parserHelper.newSelect(e.nextMacroID(), operand, field)
+// NewSelect implements the ExprHelper interface method.
+func (e *exprHelper) NewSelect(operand ast.Expr, field string) ast.Expr {
+ return e.exprFactory.NewSelect(e.nextMacroID(), operand, field)
}
// OffsetLocation implements the ExprHelper interface method.
func (e *exprHelper) OffsetLocation(exprID int64) common.Location {
- offset := e.parserHelper.positions[exprID]
- location, _ := e.parserHelper.source.OffsetLocation(offset)
- return location
+ return e.parserHelper.sourceInfo.GetStartLocation(exprID)
+}
+
+// NewError associates an error message with a given expression id, populating the source offset location of the error if possible.
+func (e *exprHelper) NewError(exprID int64, message string) *common.Error {
+ return common.NewError(exprID, message, e.OffsetLocation(exprID))
}
var (
diff --git a/vendor/github.com/google/cel-go/parser/input.go b/vendor/github.com/google/cel-go/parser/input.go
index 810eaff..4479245 100644
--- a/vendor/github.com/google/cel-go/parser/input.go
+++ b/vendor/github.com/google/cel-go/parser/input.go
@@ -15,7 +15,7 @@
package parser
import (
- antlr "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+ antlr "github.com/antlr4-go/antlr/v4"
"github.com/google/cel-go/common/runes"
)
@@ -110,7 +110,7 @@ func (c *charStream) GetTextFromTokens(start, stop antlr.Token) string {
}
// GetTextFromInterval implements (antlr.CharStream).GetTextFromInterval.
-func (c *charStream) GetTextFromInterval(i *antlr.Interval) string {
+func (c *charStream) GetTextFromInterval(i antlr.Interval) string {
return c.GetText(i.Start, i.Stop)
}
diff --git a/vendor/github.com/google/cel-go/parser/macro.go b/vendor/github.com/google/cel-go/parser/macro.go
index 80e5c66..dcd2322 100644
--- a/vendor/github.com/google/cel-go/parser/macro.go
+++ b/vendor/github.com/google/cel-go/parser/macro.go
@@ -18,9 +18,10 @@ import (
"fmt"
"github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/operators"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/types"
+ "github.com/google/cel-go/common/types/ref"
)
// NewGlobalMacro creates a Macro for a global function with the specified arg count.
@@ -142,58 +143,39 @@ func makeVarArgMacroKey(name string, receiverStyle bool) string {
// and produces as output an Expr ast node.
//
// Note: when the Macro.IsReceiverStyle() method returns true, the target argument will be nil.
-type MacroExpander func(eh ExprHelper,
- target *exprpb.Expr,
- args []*exprpb.Expr) (*exprpb.Expr, *common.Error)
+type MacroExpander func(eh ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error)
-// ExprHelper assists with the manipulation of proto-based Expr values in a manner which is
-// consistent with the source position and expression id generation code leveraged by both
-// the parser and type-checker.
+// ExprHelper assists with the creation of Expr values in a manner which is consistent
+// the internal semantics and id generation behaviors of the parser and checker libraries.
type ExprHelper interface {
// Copy the input expression with a brand new set of identifiers.
- Copy(*exprpb.Expr) *exprpb.Expr
-
- // LiteralBool creates an Expr value for a bool literal.
- LiteralBool(value bool) *exprpb.Expr
-
- // LiteralBytes creates an Expr value for a byte literal.
- LiteralBytes(value []byte) *exprpb.Expr
-
- // LiteralDouble creates an Expr value for double literal.
- LiteralDouble(value float64) *exprpb.Expr
+ Copy(ast.Expr) ast.Expr
- // LiteralInt creates an Expr value for an int literal.
- LiteralInt(value int64) *exprpb.Expr
+ // Literal creates an Expr value for a scalar literal value.
+ NewLiteral(value ref.Val) ast.Expr
- // LiteralString creates am Expr value for a string literal.
- LiteralString(value string) *exprpb.Expr
-
- // LiteralUint creates an Expr value for a uint literal.
- LiteralUint(value uint64) *exprpb.Expr
-
- // NewList creates a CreateList instruction where the list is comprised of the optional set
- // of elements provided as arguments.
- NewList(elems ...*exprpb.Expr) *exprpb.Expr
+ // NewList creates a list literal instruction with an optional set of elements.
+ NewList(elems ...ast.Expr) ast.Expr
// NewMap creates a CreateStruct instruction for a map where the map is comprised of the
// optional set of key, value entries.
- NewMap(entries ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr
+ NewMap(entries ...ast.EntryExpr) ast.Expr
// NewMapEntry creates a Map Entry for the key, value pair.
- NewMapEntry(key *exprpb.Expr, val *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry
+ NewMapEntry(key ast.Expr, val ast.Expr, optional bool) ast.EntryExpr
- // NewObject creates a CreateStruct instruction for an object with a given type name and
- // optional set of field initializers.
- NewObject(typeName string, fieldInits ...*exprpb.Expr_CreateStruct_Entry) *exprpb.Expr
+ // NewStruct creates a struct literal expression with an optional set of field initializers.
+ NewStruct(typeName string, fieldInits ...ast.EntryExpr) ast.Expr
- // NewObjectFieldInit creates a new Object field initializer from the field name and value.
- NewObjectFieldInit(field string, init *exprpb.Expr, optional bool) *exprpb.Expr_CreateStruct_Entry
+ // NewStructField creates a new struct field initializer from the field name and value.
+ NewStructField(field string, init ast.Expr, optional bool) ast.EntryExpr
- // Fold creates a fold comprehension instruction.
+ // NewComprehension creates a new one-variable comprehension instruction.
//
- // - iterVar is the iteration variable name.
// - iterRange represents the expression that resolves to a list or map where the elements or
// keys (respectively) will be iterated over.
+ // - iterVar is the variable name for the list element value, or the map key, depending on the
+ // range type.
// - accuVar is the accumulation variable name, typically parser.AccumulatorName.
// - accuInit is the initial expression whose value will be set for the accuVar prior to
// folding.
@@ -204,34 +186,62 @@ type ExprHelper interface {
// The accuVar should not shadow variable names that you would like to reference within the
// environment in the step and condition expressions. Presently, the name __result__ is commonly
// used by built-in macros but this may change in the future.
- Fold(iterVar string,
- iterRange *exprpb.Expr,
+ NewComprehension(iterRange ast.Expr,
+ iterVar,
accuVar string,
- accuInit *exprpb.Expr,
- condition *exprpb.Expr,
- step *exprpb.Expr,
- result *exprpb.Expr) *exprpb.Expr
+ accuInit,
+ condition,
+ step,
+ result ast.Expr) ast.Expr
- // Ident creates an identifier Expr value.
- Ident(name string) *exprpb.Expr
+ // NewComprehensionTwoVar creates a new two-variable comprehension instruction.
+ //
+ // - iterRange represents the expression that resolves to a list or map where the elements or
+ // keys (respectively) will be iterated over.
+ // - iterVar is the iteration variable assigned to the list index or the map key.
+ // - iterVar2 is the iteration variable assigned to the list element value or the map key value.
+ // - accuVar is the accumulation variable name, typically parser.AccumulatorName.
+ // - accuInit is the initial expression whose value will be set for the accuVar prior to
+ // folding.
+ // - condition is the expression to test to determine whether to continue folding.
+ // - step is the expression to evaluation at the conclusion of a single fold iteration.
+ // - result is the computation to evaluate at the conclusion of the fold.
+ //
+ // The accuVar should not shadow variable names that you would like to reference within the
+ // environment in the step and condition expressions. Presently, the name __result__ is commonly
+ // used by built-in macros but this may change in the future.
+ NewComprehensionTwoVar(iterRange ast.Expr,
+ iterVar,
+ iterVar2,
+ accuVar string,
+ accuInit,
+ condition,
+ step,
+ result ast.Expr) ast.Expr
+
+ // NewIdent creates an identifier Expr value.
+ NewIdent(name string) ast.Expr
- // AccuIdent returns an accumulator identifier for use with comprehension results.
- AccuIdent() *exprpb.Expr
+ // NewAccuIdent returns an accumulator identifier for use with comprehension results.
+ NewAccuIdent() ast.Expr
- // GlobalCall creates a function call Expr value for a global (free) function.
- GlobalCall(function string, args ...*exprpb.Expr) *exprpb.Expr
+ // NewCall creates a function call Expr value for a global (free) function.
+ NewCall(function string, args ...ast.Expr) ast.Expr
- // ReceiverCall creates a function call Expr value for a receiver-style function.
- ReceiverCall(function string, target *exprpb.Expr, args ...*exprpb.Expr) *exprpb.Expr
+ // NewMemberCall creates a function call Expr value for a receiver-style function.
+ NewMemberCall(function string, target ast.Expr, args ...ast.Expr) ast.Expr
- // PresenceTest creates a Select TestOnly Expr value for modelling has() semantics.
- PresenceTest(operand *exprpb.Expr, field string) *exprpb.Expr
+ // NewPresenceTest creates a Select TestOnly Expr value for modelling has() semantics.
+ NewPresenceTest(operand ast.Expr, field string) ast.Expr
- // Select create a field traversal Expr value.
- Select(operand *exprpb.Expr, field string) *exprpb.Expr
+ // NewSelect create a field traversal Expr value.
+ NewSelect(operand ast.Expr, field string) ast.Expr
// OffsetLocation returns the Location of the expression identifier.
OffsetLocation(exprID int64) common.Location
+
+ // NewError associates an error message with a given expression id.
+ NewError(exprID int64, message string) *common.Error
}
var (
@@ -249,8 +259,13 @@ var (
// ExistsOneMacro expands "range.exists_one(var, predicate)", which is true if for exactly one
// element in range the predicate holds.
+ // Deprecated: Use ExistsOneMacroNew
ExistsOneMacro = NewReceiverMacro(operators.ExistsOne, 2, MakeExistsOne)
+ // ExistsOneMacroNew expands "range.existsOne(var, predicate)", which is true if for exactly one
+ // element in range the predicate holds.
+ ExistsOneMacroNew = NewReceiverMacro("existsOne", 2, MakeExistsOne)
+
// MapMacro expands "range.map(var, function)" into a comprehension which applies the function
// to each element in the range to produce a new list.
MapMacro = NewReceiverMacro(operators.Map, 2, MakeMap)
@@ -270,6 +285,7 @@ var (
AllMacro,
ExistsMacro,
ExistsOneMacro,
+ ExistsOneMacroNew,
MapMacro,
MapFilterMacro,
FilterMacro,
@@ -293,21 +309,21 @@ const (
// MakeAll expands the input call arguments into a comprehension that returns true if all of the
// elements in the range match the predicate expressions:
// <iterRange>.all(<iterVar>, <predicate>)
-func MakeAll(eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func MakeAll(eh ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
return makeQuantifier(quantifierAll, eh, target, args)
}
// MakeExists expands the input call arguments into a comprehension that returns true if any of the
// elements in the range match the predicate expressions:
// <iterRange>.exists(<iterVar>, <predicate>)
-func MakeExists(eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func MakeExists(eh ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
return makeQuantifier(quantifierExists, eh, target, args)
}
// MakeExistsOne expands the input call arguments into a comprehension that returns true if exactly
// one of the elements in the range match the predicate expressions:
// <iterRange>.exists_one(<iterVar>, <predicate>)
-func MakeExistsOne(eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func MakeExistsOne(eh ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
return makeQuantifier(quantifierExistsOne, eh, target, args)
}
@@ -321,14 +337,17 @@ func MakeExistsOne(eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*ex
//
// In the second form only iterVar values which return true when provided to the predicate expression
// are transformed.
-func MakeMap(eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func MakeMap(eh ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
v, found := extractIdent(args[0])
if !found {
- return nil, &common.Error{Message: "argument is not an identifier"}
+ return nil, eh.NewError(args[0].ID(), "argument is not an identifier")
+ }
+ if v == AccumulatorName {
+ return nil, eh.NewError(args[0].ID(), "iteration variable overwrites accumulator variable")
}
- var fn *exprpb.Expr
- var filter *exprpb.Expr
+ var fn ast.Expr
+ var filter ast.Expr
if len(args) == 3 {
filter = args[1]
@@ -338,88 +357,87 @@ func MakeMap(eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.E
fn = args[1]
}
- accuExpr := eh.Ident(AccumulatorName)
init := eh.NewList()
- condition := eh.LiteralBool(true)
- step := eh.GlobalCall(operators.Add, accuExpr, eh.NewList(fn))
+ condition := eh.NewLiteral(types.True)
+ step := eh.NewCall(operators.Add, eh.NewAccuIdent(), eh.NewList(fn))
if filter != nil {
- step = eh.GlobalCall(operators.Conditional, filter, step, accuExpr)
+ step = eh.NewCall(operators.Conditional, filter, step, eh.NewAccuIdent())
}
- return eh.Fold(v, target, AccumulatorName, init, condition, step, accuExpr), nil
+ return eh.NewComprehension(target, v, AccumulatorName, init, condition, step, eh.NewAccuIdent()), nil
}
// MakeFilter expands the input call arguments into a comprehension which produces a list which contains
// only elements which match the provided predicate expression:
// <iterRange>.filter(<iterVar>, <predicate>)
-func MakeFilter(eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func MakeFilter(eh ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
v, found := extractIdent(args[0])
if !found {
- return nil, &common.Error{Message: "argument is not an identifier"}
+ return nil, eh.NewError(args[0].ID(), "argument is not an identifier")
+ }
+ if v == AccumulatorName {
+ return nil, eh.NewError(args[0].ID(), "iteration variable overwrites accumulator variable")
}
filter := args[1]
- accuExpr := eh.Ident(AccumulatorName)
init := eh.NewList()
- condition := eh.LiteralBool(true)
- step := eh.GlobalCall(operators.Add, accuExpr, eh.NewList(args[0]))
- step = eh.GlobalCall(operators.Conditional, filter, step, accuExpr)
- return eh.Fold(v, target, AccumulatorName, init, condition, step, accuExpr), nil
+ condition := eh.NewLiteral(types.True)
+ step := eh.NewCall(operators.Add, eh.NewAccuIdent(), eh.NewList(args[0]))
+ step = eh.NewCall(operators.Conditional, filter, step, eh.NewAccuIdent())
+ return eh.NewComprehension(target, v, AccumulatorName, init, condition, step, eh.NewAccuIdent()), nil
}
// MakeHas expands the input call arguments into a presence test, e.g. has(<operand>.field)
-func MakeHas(eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
- if s, ok := args[0].ExprKind.(*exprpb.Expr_SelectExpr); ok {
- return eh.PresenceTest(s.SelectExpr.GetOperand(), s.SelectExpr.GetField()), nil
+func MakeHas(eh ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
+ if args[0].Kind() == ast.SelectKind {
+ s := args[0].AsSelect()
+ return eh.NewPresenceTest(s.Operand(), s.FieldName()), nil
}
- return nil, &common.Error{Message: "invalid argument to has() macro"}
+ return nil, eh.NewError(args[0].ID(), "invalid argument to has() macro")
}
-func makeQuantifier(kind quantifierKind, eh ExprHelper, target *exprpb.Expr, args []*exprpb.Expr) (*exprpb.Expr, *common.Error) {
+func makeQuantifier(kind quantifierKind, eh ExprHelper, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
v, found := extractIdent(args[0])
if !found {
- location := eh.OffsetLocation(args[0].GetId())
- return nil, &common.Error{
- Message: "argument must be a simple name",
- Location: location,
- }
+ return nil, eh.NewError(args[0].ID(), "argument must be a simple name")
+ }
+ if v == AccumulatorName {
+ return nil, eh.NewError(args[0].ID(), "iteration variable overwrites accumulator variable")
}
- var init *exprpb.Expr
- var condition *exprpb.Expr
- var step *exprpb.Expr
- var result *exprpb.Expr
+ var init ast.Expr
+ var condition ast.Expr
+ var step ast.Expr
+ var result ast.Expr
switch kind {
case quantifierAll:
- init = eh.LiteralBool(true)
- condition = eh.GlobalCall(operators.NotStrictlyFalse, eh.AccuIdent())
- step = eh.GlobalCall(operators.LogicalAnd, eh.AccuIdent(), args[1])
- result = eh.AccuIdent()
+ init = eh.NewLiteral(types.True)
+ condition = eh.NewCall(operators.NotStrictlyFalse, eh.NewAccuIdent())
+ step = eh.NewCall(operators.LogicalAnd, eh.NewAccuIdent(), args[1])
+ result = eh.NewAccuIdent()
case quantifierExists:
- init = eh.LiteralBool(false)
- condition = eh.GlobalCall(
+ init = eh.NewLiteral(types.False)
+ condition = eh.NewCall(
operators.NotStrictlyFalse,
- eh.GlobalCall(operators.LogicalNot, eh.AccuIdent()))
- step = eh.GlobalCall(operators.LogicalOr, eh.AccuIdent(), args[1])
- result = eh.AccuIdent()
+ eh.NewCall(operators.LogicalNot, eh.NewAccuIdent()))
+ step = eh.NewCall(operators.LogicalOr, eh.NewAccuIdent(), args[1])
+ result = eh.NewAccuIdent()
case quantifierExistsOne:
- zeroExpr := eh.LiteralInt(0)
- oneExpr := eh.LiteralInt(1)
- init = zeroExpr
- condition = eh.LiteralBool(true)
- step = eh.GlobalCall(operators.Conditional, args[1],
- eh.GlobalCall(operators.Add, eh.AccuIdent(), oneExpr), eh.AccuIdent())
- result = eh.GlobalCall(operators.Equals, eh.AccuIdent(), oneExpr)
+ init = eh.NewLiteral(types.Int(0))
+ condition = eh.NewLiteral(types.True)
+ step = eh.NewCall(operators.Conditional, args[1],
+ eh.NewCall(operators.Add, eh.NewAccuIdent(), eh.NewLiteral(types.Int(1))), eh.NewAccuIdent())
+ result = eh.NewCall(operators.Equals, eh.NewAccuIdent(), eh.NewLiteral(types.Int(1)))
default:
- return nil, &common.Error{Message: fmt.Sprintf("unrecognized quantifier '%v'", kind)}
+ return nil, eh.NewError(args[0].ID(), fmt.Sprintf("unrecognized quantifier '%v'", kind))
}
- return eh.Fold(v, target, AccumulatorName, init, condition, step, result), nil
+ return eh.NewComprehension(target, v, AccumulatorName, init, condition, step, result), nil
}
-func extractIdent(e *exprpb.Expr) (string, bool) {
- switch e.ExprKind.(type) {
- case *exprpb.Expr_IdentExpr:
- return e.GetIdentExpr().GetName(), true
+func extractIdent(e ast.Expr) (string, bool) {
+ switch e.Kind() {
+ case ast.IdentKind:
+ return e.AsIdent(), true
}
return "", false
}
diff --git a/vendor/github.com/google/cel-go/parser/options.go b/vendor/github.com/google/cel-go/parser/options.go
index 674c697..61fc3ad 100644
--- a/vendor/github.com/google/cel-go/parser/options.go
+++ b/vendor/github.com/google/cel-go/parser/options.go
@@ -25,6 +25,7 @@ type options struct {
macros map[string]Macro
populateMacroCalls bool
enableOptionalSyntax bool
+ enableVariadicOperatorASTs bool
}
// Option configures the behavior of the parser.
@@ -125,3 +126,15 @@ func EnableOptionalSyntax(optionalSyntax bool) Option {
return nil
}
}
+
+// EnableVariadicOperatorASTs enables a compact representation of chained like-kind commutative
+// operators. e.g. `a || b || c || d` -> `call(op='||', args=[a, b, c, d])`
+//
+// The benefit of enabling variadic operators ASTs is a more compact representation deeply nested
+// logic graphs.
+func EnableVariadicOperatorASTs(varArgASTs bool) Option {
+ return func(opts *options) error {
+ opts.enableVariadicOperatorASTs = varArgASTs
+ return nil
+ }
+}
diff --git a/vendor/github.com/google/cel-go/parser/parser.go b/vendor/github.com/google/cel-go/parser/parser.go
index e6f70f9..5cbb176 100644
--- a/vendor/github.com/google/cel-go/parser/parser.go
+++ b/vendor/github.com/google/cel-go/parser/parser.go
@@ -21,17 +21,15 @@ import (
"regexp"
"strconv"
"strings"
- "sync"
- antlr "github.com/antlr/antlr4/runtime/Go/antlr/v4"
+ antlr "github.com/antlr4-go/antlr/v4"
"github.com/google/cel-go/common"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/operators"
"github.com/google/cel-go/common/runes"
+ "github.com/google/cel-go/common/types"
"github.com/google/cel-go/parser/gen"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
- structpb "google.golang.org/protobuf/types/known/structpb"
)
// Parser encapsulates the context necessary to perform parsing for different expressions.
@@ -88,10 +86,13 @@ func mustNewParser(opts ...Option) *Parser {
}
// Parse parses the expression represented by source and returns the result.
-func (p *Parser) Parse(source common.Source) (*exprpb.ParsedExpr, *common.Errors) {
+func (p *Parser) Parse(source common.Source) (*ast.AST, *common.Errors) {
+ errs := common.NewErrors(source)
+ fac := ast.NewExprFactory()
impl := parser{
- errors: &parseErrors{common.NewErrors(source)},
- helper: newParserHelper(source),
+ errors: &parseErrors{errs},
+ exprFactory: fac,
+ helper: newParserHelper(source, fac),
macros: p.macros,
maxRecursionDepth: p.maxRecursionDepth,
errorReportingLimit: p.errorReportingLimit,
@@ -99,23 +100,21 @@ func (p *Parser) Parse(source common.Source) (*exprpb.ParsedExpr, *common.Errors
errorRecoveryLookaheadTokenLimit: p.errorRecoveryTokenLookaheadLimit,
populateMacroCalls: p.populateMacroCalls,
enableOptionalSyntax: p.enableOptionalSyntax,
+ enableVariadicOperatorASTs: p.enableVariadicOperatorASTs,
}
buf, ok := source.(runes.Buffer)
if !ok {
buf = runes.NewBuffer(source.Content())
}
- var e *exprpb.Expr
+ var out ast.Expr
if buf.Len() > p.expressionSizeCodePointLimit {
- e = impl.reportError(common.NoLocation,
+ out = impl.reportError(common.NoLocation,
"expression code point size exceeds limit: size: %d, limit %d",
buf.Len(), p.expressionSizeCodePointLimit)
} else {
- e = impl.parse(buf, source.Description())
+ out = impl.parse(buf, source.Description())
}
- return &exprpb.ParsedExpr{
- Expr: e,
- SourceInfo: impl.helper.getSourceInfo(),
- }, impl.errors.Errors
+ return ast.NewAST(out, impl.helper.getSourceInfo()), errs
}
// reservedIds are not legal to use as variables. We exclude them post-parse, as they *are* valid
@@ -148,7 +147,7 @@ var reservedIds = map[string]struct{}{
// This function calls ParseWithMacros with AllMacros.
//
// Deprecated: Use NewParser().Parse() instead.
-func Parse(source common.Source) (*exprpb.ParsedExpr, *common.Errors) {
+func Parse(source common.Source) (*ast.AST, *common.Errors) {
return mustNewParser(Macros(AllMacros...)).Parse(source)
}
@@ -285,6 +284,7 @@ var _ antlr.ErrorStrategy = &recoveryLimitErrorStrategy{}
type parser struct {
gen.BaseCELVisitor
errors *parseErrors
+ exprFactory ast.ExprFactory
helper *parserHelper
macros map[string]Macro
recursionDepth int
@@ -295,55 +295,24 @@ type parser struct {
errorRecoveryLookaheadTokenLimit int
populateMacroCalls bool
enableOptionalSyntax bool
+ enableVariadicOperatorASTs bool
}
-var (
- _ gen.CELVisitor = (*parser)(nil)
+var _ gen.CELVisitor = (*parser)(nil)
- lexerPool *sync.Pool = &sync.Pool{
- New: func() any {
- l := gen.NewCELLexer(nil)
- l.RemoveErrorListeners()
- return l
- },
- }
-
- parserPool *sync.Pool = &sync.Pool{
- New: func() any {
- p := gen.NewCELParser(nil)
- p.RemoveErrorListeners()
- return p
- },
- }
-)
+func (p *parser) parse(expr runes.Buffer, desc string) ast.Expr {
+ lexer := gen.NewCELLexer(newCharStream(expr, desc))
+ lexer.RemoveErrorListeners()
+ lexer.AddErrorListener(p)
-func (p *parser) parse(expr runes.Buffer, desc string) *exprpb.Expr {
- // TODO: get rid of these pools once https://github.com/antlr/antlr4/pull/3571 is in a release
- lexer := lexerPool.Get().(*gen.CELLexer)
- prsr := parserPool.Get().(*gen.CELParser)
+ prsr := gen.NewCELParser(antlr.NewCommonTokenStream(lexer, 0))
+ prsr.RemoveErrorListeners()
prsrListener := &recursionListener{
maxDepth: p.maxRecursionDepth,
ruleTypeDepth: map[int]*int{},
}
- defer func() {
- // Unfortunately ANTLR Go runtime is missing (*antlr.BaseParser).RemoveParseListeners,
- // so this is good enough until that is exported.
- // Reset the lexer and parser before putting them back in the pool.
- lexer.RemoveErrorListeners()
- prsr.RemoveParseListener(prsrListener)
- prsr.RemoveErrorListeners()
- lexer.SetInputStream(nil)
- prsr.SetInputStream(nil)
- lexerPool.Put(lexer)
- parserPool.Put(prsr)
- }()
-
- lexer.SetInputStream(newCharStream(expr, desc))
- prsr.SetInputStream(antlr.NewCommonTokenStream(lexer, 0))
-
- lexer.AddErrorListener(p)
prsr.AddErrorListener(p)
prsr.AddParseListener(prsrListener)
@@ -357,9 +326,9 @@ func (p *parser) parse(expr runes.Buffer, desc string) *exprpb.Expr {
if val := recover(); val != nil {
switch err := val.(type) {
case *lookaheadLimitError:
- p.errors.ReportError(common.NoLocation, err.Error())
+ p.errors.internalError(err.Error())
case *recursionError:
- p.errors.ReportError(common.NoLocation, err.Error())
+ p.errors.internalError(err.Error())
case *tooManyErrors:
// do nothing
case *recoveryLimitError:
@@ -370,7 +339,7 @@ func (p *parser) parse(expr runes.Buffer, desc string) *exprpb.Expr {
}
}()
- return p.Visit(prsr.Start()).(*exprpb.Expr)
+ return p.Visit(prsr.Start_()).(ast.Expr)
}
// Visitor implementations.
@@ -449,7 +418,7 @@ func (p *parser) Visit(tree antlr.ParseTree) any {
// Report at least one error if the parser reaches an unknown parse element.
// Typically, this happens if the parser has already encountered a syntax error elsewhere.
- if len(p.errors.GetErrors()) == 0 {
+ if p.errors.errorCount() == 0 {
txt := "<<nil>>"
if t != nil {
txt = fmt.Sprintf("<<%T>>", t)
@@ -467,46 +436,46 @@ func (p *parser) VisitStart(ctx *gen.StartContext) any {
// Visit a parse tree produced by CELParser#expr.
func (p *parser) VisitExpr(ctx *gen.ExprContext) any {
- result := p.Visit(ctx.GetE()).(*exprpb.Expr)
+ result := p.Visit(ctx.GetE()).(ast.Expr)
if ctx.GetOp() == nil {
return result
}
opID := p.helper.id(ctx.GetOp())
- ifTrue := p.Visit(ctx.GetE1()).(*exprpb.Expr)
- ifFalse := p.Visit(ctx.GetE2()).(*exprpb.Expr)
+ ifTrue := p.Visit(ctx.GetE1()).(ast.Expr)
+ ifFalse := p.Visit(ctx.GetE2()).(ast.Expr)
return p.globalCallOrMacro(opID, operators.Conditional, result, ifTrue, ifFalse)
}
// Visit a parse tree produced by CELParser#conditionalOr.
func (p *parser) VisitConditionalOr(ctx *gen.ConditionalOrContext) any {
- result := p.Visit(ctx.GetE()).(*exprpb.Expr)
- b := newBalancer(p.helper, operators.LogicalOr, result)
+ result := p.Visit(ctx.GetE()).(ast.Expr)
+ l := p.newLogicManager(operators.LogicalOr, result)
rest := ctx.GetE1()
for i, op := range ctx.GetOps() {
if i >= len(rest) {
return p.reportError(ctx, "unexpected character, wanted '||'")
}
- next := p.Visit(rest[i]).(*exprpb.Expr)
+ next := p.Visit(rest[i]).(ast.Expr)
opID := p.helper.id(op)
- b.addTerm(opID, next)
+ l.addTerm(opID, next)
}
- return b.balance()
+ return l.toExpr()
}
// Visit a parse tree produced by CELParser#conditionalAnd.
func (p *parser) VisitConditionalAnd(ctx *gen.ConditionalAndContext) any {
- result := p.Visit(ctx.GetE()).(*exprpb.Expr)
- b := newBalancer(p.helper, operators.LogicalAnd, result)
+ result := p.Visit(ctx.GetE()).(ast.Expr)
+ l := p.newLogicManager(operators.LogicalAnd, result)
rest := ctx.GetE1()
for i, op := range ctx.GetOps() {
if i >= len(rest) {
return p.reportError(ctx, "unexpected character, wanted '&&'")
}
- next := p.Visit(rest[i]).(*exprpb.Expr)
+ next := p.Visit(rest[i]).(ast.Expr)
opID := p.helper.id(op)
- b.addTerm(opID, next)
+ l.addTerm(opID, next)
}
- return b.balance()
+ return l.toExpr()
}
// Visit a parse tree produced by CELParser#relation.
@@ -516,9 +485,9 @@ func (p *parser) VisitRelation(ctx *gen.RelationContext) any {
opText = ctx.GetOp().GetText()
}
if op, found := operators.Find(opText); found {
- lhs := p.Visit(ctx.Relation(0)).(*exprpb.Expr)
+ lhs := p.Visit(ctx.Relation(0)).(ast.Expr)
opID := p.helper.id(ctx.GetOp())
- rhs := p.Visit(ctx.Relation(1)).(*exprpb.Expr)
+ rhs := p.Visit(ctx.Relation(1)).(ast.Expr)
return p.globalCallOrMacro(opID, op, lhs, rhs)
}
return p.reportError(ctx, "operator not found")
@@ -531,9 +500,9 @@ func (p *parser) VisitCalc(ctx *gen.CalcContext) any {
opText = ctx.GetOp().GetText()
}
if op, found := operators.Find(opText); found {
- lhs := p.Visit(ctx.Calc(0)).(*exprpb.Expr)
+ lhs := p.Visit(ctx.Calc(0)).(ast.Expr)
opID := p.helper.id(ctx.GetOp())
- rhs := p.Visit(ctx.Calc(1)).(*exprpb.Expr)
+ rhs := p.Visit(ctx.Calc(1)).(ast.Expr)
return p.globalCallOrMacro(opID, op, lhs, rhs)
}
return p.reportError(ctx, "operator not found")
@@ -549,7 +518,7 @@ func (p *parser) VisitLogicalNot(ctx *gen.LogicalNotContext) any {
return p.Visit(ctx.Member())
}
opID := p.helper.id(ctx.GetOps()[0])
- target := p.Visit(ctx.Member()).(*exprpb.Expr)
+ target := p.Visit(ctx.Member()).(ast.Expr)
return p.globalCallOrMacro(opID, operators.LogicalNot, target)
}
@@ -558,13 +527,13 @@ func (p *parser) VisitNegate(ctx *gen.NegateContext) any {
return p.Visit(ctx.Member())
}
opID := p.helper.id(ctx.GetOps()[0])
- target := p.Visit(ctx.Member()).(*exprpb.Expr)
+ target := p.Visit(ctx.Member()).(ast.Expr)
return p.globalCallOrMacro(opID, operators.Negate, target)
}
// VisitSelect visits a parse tree produced by CELParser#Select.
func (p *parser) VisitSelect(ctx *gen.SelectContext) any {
- operand := p.Visit(ctx.Member()).(*exprpb.Expr)
+ operand := p.Visit(ctx.Member()).(ast.Expr)
// Handle the error case where no valid identifier is specified.
if ctx.GetId() == nil || ctx.GetOp() == nil {
return p.helper.newExpr(ctx)
@@ -585,7 +554,7 @@ func (p *parser) VisitSelect(ctx *gen.SelectContext) any {
// VisitMemberCall visits a parse tree produced by CELParser#MemberCall.
func (p *parser) VisitMemberCall(ctx *gen.MemberCallContext) any {
- operand := p.Visit(ctx.Member()).(*exprpb.Expr)
+ operand := p.Visit(ctx.Member()).(ast.Expr)
// Handle the error case where no valid identifier is specified.
if ctx.GetId() == nil {
return p.helper.newExpr(ctx)
@@ -597,13 +566,13 @@ func (p *parser) VisitMemberCall(ctx *gen.MemberCallContext) any {
// Visit a parse tree produced by CELParser#Index.
func (p *parser) VisitIndex(ctx *gen.IndexContext) any {
- target := p.Visit(ctx.Member()).(*exprpb.Expr)
+ target := p.Visit(ctx.Member()).(ast.Expr)
// Handle the error case where no valid identifier is specified.
if ctx.GetOp() == nil {
return p.helper.newExpr(ctx)
}
opID := p.helper.id(ctx.GetOp())
- index := p.Visit(ctx.GetIndex()).(*exprpb.Expr)
+ index := p.Visit(ctx.GetIndex()).(ast.Expr)
operator := operators.Index
if ctx.GetOpt() != nil {
if !p.enableOptionalSyntax {
@@ -627,7 +596,7 @@ func (p *parser) VisitCreateMessage(ctx *gen.CreateMessageContext) any {
messageName = "." + messageName
}
objID := p.helper.id(ctx.GetOp())
- entries := p.VisitIFieldInitializerList(ctx.GetEntries()).([]*exprpb.Expr_CreateStruct_Entry)
+ entries := p.VisitIFieldInitializerList(ctx.GetEntries()).([]ast.EntryExpr)
return p.helper.newObject(objID, messageName, entries...)
}
@@ -635,16 +604,16 @@ func (p *parser) VisitCreateMessage(ctx *gen.CreateMessageContext) any {
func (p *parser) VisitIFieldInitializerList(ctx gen.IFieldInitializerListContext) any {
if ctx == nil || ctx.GetFields() == nil {
// This is the result of a syntax error handled elswhere, return empty.
- return []*exprpb.Expr_CreateStruct_Entry{}
+ return []ast.EntryExpr{}
}
- result := make([]*exprpb.Expr_CreateStruct_Entry, len(ctx.GetFields()))
+ result := make([]ast.EntryExpr, len(ctx.GetFields()))
cols := ctx.GetCols()
vals := ctx.GetValues()
for i, f := range ctx.GetFields() {
if i >= len(cols) || i >= len(vals) {
// This is the result of a syntax error detected elsewhere.
- return []*exprpb.Expr_CreateStruct_Entry{}
+ return []ast.EntryExpr{}
}
initID := p.helper.id(cols[i])
optField := f.(*gen.OptFieldContext)
@@ -656,10 +625,10 @@ func (p *parser) VisitIFieldInitializerList(ctx gen.IFieldInitializerListContext
// The field may be empty due to a prior error.
id := optField.IDENTIFIER()
if id == nil {
- return []*exprpb.Expr_CreateStruct_Entry{}
+ return []ast.EntryExpr{}
}
fieldName := id.GetText()
- value := p.Visit(vals[i]).(*exprpb.Expr)
+ value := p.Visit(vals[i]).(ast.Expr)
field := p.helper.newObjectField(initID, fieldName, value, optional)
result[i] = field
}
@@ -699,9 +668,9 @@ func (p *parser) VisitCreateList(ctx *gen.CreateListContext) any {
// Visit a parse tree produced by CELParser#CreateStruct.
func (p *parser) VisitCreateStruct(ctx *gen.CreateStructContext) any {
structID := p.helper.id(ctx.GetOp())
- entries := []*exprpb.Expr_CreateStruct_Entry{}
+ entries := []ast.EntryExpr{}
if ctx.GetEntries() != nil {
- entries = p.Visit(ctx.GetEntries()).([]*exprpb.Expr_CreateStruct_Entry)
+ entries = p.Visit(ctx.GetEntries()).([]ast.EntryExpr)
}
return p.helper.newMap(structID, entries...)
}
@@ -710,17 +679,17 @@ func (p *parser) VisitCreateStruct(ctx *gen.CreateStructContext) any {
func (p *parser) VisitMapInitializerList(ctx *gen.MapInitializerListContext) any {
if ctx == nil || ctx.GetKeys() == nil {
// This is the result of a syntax error handled elswhere, return empty.
- return []*exprpb.Expr_CreateStruct_Entry{}
+ return []ast.EntryExpr{}
}
- result := make([]*exprpb.Expr_CreateStruct_Entry, len(ctx.GetCols()))
+ result := make([]ast.EntryExpr, len(ctx.GetCols()))
keys := ctx.GetKeys()
vals := ctx.GetValues()
for i, col := range ctx.GetCols() {
colID := p.helper.id(col)
if i >= len(keys) || i >= len(vals) {
// This is the result of a syntax error detected elsewhere.
- return []*exprpb.Expr_CreateStruct_Entry{}
+ return []ast.EntryExpr{}
}
optKey := keys[i]
optional := optKey.GetOpt() != nil
@@ -728,8 +697,8 @@ func (p *parser) VisitMapInitializerList(ctx *gen.MapInitializerListContext) any
p.reportError(optKey, "unsupported syntax '?'")
continue
}
- key := p.Visit(optKey.GetE()).(*exprpb.Expr)
- value := p.Visit(vals[i]).(*exprpb.Expr)
+ key := p.Visit(optKey.GetE()).(ast.Expr)
+ value := p.Visit(vals[i]).(ast.Expr)
entry := p.helper.newMapEntry(colID, key, value, optional)
result[i] = entry
}
@@ -809,30 +778,27 @@ func (p *parser) VisitBoolFalse(ctx *gen.BoolFalseContext) any {
// Visit a parse tree produced by CELParser#Null.
func (p *parser) VisitNull(ctx *gen.NullContext) any {
- return p.helper.newLiteral(ctx,
- &exprpb.Constant{
- ConstantKind: &exprpb.Constant_NullValue{
- NullValue: structpb.NullValue_NULL_VALUE}})
+ return p.helper.exprFactory.NewLiteral(p.helper.newID(ctx), types.NullValue)
}
-func (p *parser) visitExprList(ctx gen.IExprListContext) []*exprpb.Expr {
+func (p *parser) visitExprList(ctx gen.IExprListContext) []ast.Expr {
if ctx == nil {
- return []*exprpb.Expr{}
+ return []ast.Expr{}
}
return p.visitSlice(ctx.GetE())
}
-func (p *parser) visitListInit(ctx gen.IListInitContext) ([]*exprpb.Expr, []int32) {
+func (p *parser) visitListInit(ctx gen.IListInitContext) ([]ast.Expr, []int32) {
if ctx == nil {
- return []*exprpb.Expr{}, []int32{}
+ return []ast.Expr{}, []int32{}
}
elements := ctx.GetElems()
- result := make([]*exprpb.Expr, len(elements))
+ result := make([]ast.Expr, len(elements))
optionals := []int32{}
for i, e := range elements {
- ex := p.Visit(e.GetE()).(*exprpb.Expr)
+ ex := p.Visit(e.GetE()).(ast.Expr)
if ex == nil {
- return []*exprpb.Expr{}, []int32{}
+ return []ast.Expr{}, []int32{}
}
result[i] = ex
if e.GetOpt() != nil {
@@ -846,13 +812,13 @@ func (p *parser) visitListInit(ctx gen.IListInitContext) ([]*exprpb.Expr, []int3
return result, optionals
}
-func (p *parser) visitSlice(expressions []gen.IExprContext) []*exprpb.Expr {
+func (p *parser) visitSlice(expressions []gen.IExprContext) []ast.Expr {
if expressions == nil {
- return []*exprpb.Expr{}
+ return []ast.Expr{}
}
- result := make([]*exprpb.Expr, len(expressions))
+ result := make([]ast.Expr, len(expressions))
for i, e := range expressions {
- ex := p.Visit(e).(*exprpb.Expr)
+ ex := p.Visit(e).(ast.Expr)
result[i] = ex
}
return result
@@ -867,24 +833,31 @@ func (p *parser) unquote(ctx any, value string, isBytes bool) string {
return text
}
-func (p *parser) reportError(ctx any, format string, args ...any) *exprpb.Expr {
+func (p *parser) newLogicManager(function string, term ast.Expr) *logicManager {
+ if p.enableVariadicOperatorASTs {
+ return newVariadicLogicManager(p.exprFactory, function, term)
+ }
+ return newBalancingLogicManager(p.exprFactory, function, term)
+}
+
+func (p *parser) reportError(ctx any, format string, args ...any) ast.Expr {
var location common.Location
- switch ctx.(type) {
+ err := p.helper.newExpr(ctx)
+ switch c := ctx.(type) {
case common.Location:
- location = ctx.(common.Location)
+ location = c
case antlr.Token, antlr.ParserRuleContext:
- err := p.helper.newExpr(ctx)
- location = p.helper.getLocation(err.GetId())
+ location = p.helper.getLocation(err.ID())
}
- err := p.helper.newExpr(ctx)
// Provide arguments to the report error.
- p.errors.ReportError(location, format, args...)
+ p.errors.reportErrorAtID(err.ID(), location, format, args...)
return err
}
// ANTLR Parse listener implementations
func (p *parser) SyntaxError(recognizer antlr.Recognizer, offendingSymbol any, line, column int, msg string, e antlr.RecognitionException) {
- l := p.helper.source.NewLocation(line, column)
+ offset := p.helper.sourceInfo.ComputeOffset(int32(line), int32(column))
+ l := p.helper.getLocationByOffset(offset)
// Hack to keep existing error messages consistent with previous versions of CEL when a reserved word
// is used as an identifier. This behavior needs to be overhauled to provide consistent, normalized error
// messages out of ANTLR to prevent future breaking changes related to error message content.
@@ -903,33 +876,33 @@ func (p *parser) SyntaxError(recognizer antlr.Recognizer, offendingSymbol any, l
}
}
-func (p *parser) ReportAmbiguity(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex int, exact bool, ambigAlts *antlr.BitSet, configs antlr.ATNConfigSet) {
+func (p *parser) ReportAmbiguity(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex int, exact bool, ambigAlts *antlr.BitSet, configs *antlr.ATNConfigSet) {
// Intentional
}
-func (p *parser) ReportAttemptingFullContext(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex int, conflictingAlts *antlr.BitSet, configs antlr.ATNConfigSet) {
+func (p *parser) ReportAttemptingFullContext(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex int, conflictingAlts *antlr.BitSet, configs *antlr.ATNConfigSet) {
// Intentional
}
-func (p *parser) ReportContextSensitivity(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex, prediction int, configs antlr.ATNConfigSet) {
+func (p *parser) ReportContextSensitivity(recognizer antlr.Parser, dfa *antlr.DFA, startIndex, stopIndex, prediction int, configs *antlr.ATNConfigSet) {
// Intentional
}
-func (p *parser) globalCallOrMacro(exprID int64, function string, args ...*exprpb.Expr) *exprpb.Expr {
+func (p *parser) globalCallOrMacro(exprID int64, function string, args ...ast.Expr) ast.Expr {
if expr, found := p.expandMacro(exprID, function, nil, args...); found {
return expr
}
return p.helper.newGlobalCall(exprID, function, args...)
}
-func (p *parser) receiverCallOrMacro(exprID int64, function string, target *exprpb.Expr, args ...*exprpb.Expr) *exprpb.Expr {
+func (p *parser) receiverCallOrMacro(exprID int64, function string, target ast.Expr, args ...ast.Expr) ast.Expr {
if expr, found := p.expandMacro(exprID, function, target, args...); found {
return expr
}
return p.helper.newReceiverCall(exprID, function, target, args...)
}
-func (p *parser) expandMacro(exprID int64, function string, target *exprpb.Expr, args ...*exprpb.Expr) (*exprpb.Expr, bool) {
+func (p *parser) expandMacro(exprID int64, function string, target ast.Expr, args ...ast.Expr) (ast.Expr, bool) {
macro, found := p.macros[makeMacroKey(function, len(args), target != nil)]
if !found {
macro, found = p.macros[makeVarArgMacroKey(function, target != nil)]
@@ -944,10 +917,12 @@ func (p *parser) expandMacro(exprID int64, function string, target *exprpb.Expr,
expr, err := macro.Expander()(eh, target, args)
// An error indicates that the macro was matched, but the arguments were not well-formed.
if err != nil {
- if err.Location != nil {
- return p.reportError(err.Location, err.Message), true
+ loc := err.Location
+ if loc == nil {
+ loc = p.helper.getLocation(exprID)
}
- return p.reportError(p.helper.getLocation(exprID), err.Message), true
+ p.helper.deleteID(exprID)
+ return p.reportError(loc, err.Message), true
}
// A nil value from the macro indicates that the macro implementation decided that
// an expansion should not be performed.
@@ -955,8 +930,9 @@ func (p *parser) expandMacro(exprID int64, function string, target *exprpb.Expr,
return nil, false
}
if p.populateMacroCalls {
- p.helper.addMacroCall(expr.GetId(), function, target, args...)
+ p.helper.addMacroCall(expr.ID(), function, target, args...)
}
+ p.helper.deleteID(exprID)
return expr, true
}
diff --git a/vendor/github.com/google/cel-go/parser/unparser.go b/vendor/github.com/google/cel-go/parser/unparser.go
index c3c40a0..91cf729 100644
--- a/vendor/github.com/google/cel-go/parser/unparser.go
+++ b/vendor/github.com/google/cel-go/parser/unparser.go
@@ -20,9 +20,9 @@ import (
"strconv"
"strings"
+ "github.com/google/cel-go/common/ast"
"github.com/google/cel-go/common/operators"
-
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
+ "github.com/google/cel-go/common/types"
)
// Unparse takes an input expression and source position information and generates a human-readable
@@ -39,7 +39,7 @@ import (
//
// This function optionally takes in one or more UnparserOption to alter the unparsing behavior, such as
// performing word wrapping on expressions.
-func Unparse(expr *exprpb.Expr, info *exprpb.SourceInfo, opts ...UnparserOption) (string, error) {
+func Unparse(expr ast.Expr, info *ast.SourceInfo, opts ...UnparserOption) (string, error) {
unparserOpts := &unparserOption{
wrapOnColumn: defaultWrapOnColumn,
wrapAfterColumnLimit: defaultWrapAfterColumnLimit,
@@ -68,12 +68,12 @@ func Unparse(expr *exprpb.Expr, info *exprpb.SourceInfo, opts ...UnparserOption)
// unparser visits an expression to reconstruct a human-readable string from an AST.
type unparser struct {
str strings.Builder
- info *exprpb.SourceInfo
+ info *ast.SourceInfo
options *unparserOption
lastWrappedIndex int
}
-func (un *unparser) visit(expr *exprpb.Expr) error {
+func (un *unparser) visit(expr ast.Expr) error {
if expr == nil {
return errors.New("unsupported expression")
}
@@ -81,27 +81,29 @@ func (un *unparser) visit(expr *exprpb.Expr) error {
if visited || err != nil {
return err
}
- switch expr.GetExprKind().(type) {
- case *exprpb.Expr_CallExpr:
+ switch expr.Kind() {
+ case ast.CallKind:
return un.visitCall(expr)
- case *exprpb.Expr_ConstExpr:
+ case ast.LiteralKind:
return un.visitConst(expr)
- case *exprpb.Expr_IdentExpr:
+ case ast.IdentKind:
return un.visitIdent(expr)
- case *exprpb.Expr_ListExpr:
+ case ast.ListKind:
return un.visitList(expr)
- case *exprpb.Expr_SelectExpr:
+ case ast.MapKind:
+ return un.visitStructMap(expr)
+ case ast.SelectKind:
return un.visitSelect(expr)
- case *exprpb.Expr_StructExpr:
- return un.visitStruct(expr)
+ case ast.StructKind:
+ return un.visitStructMsg(expr)
default:
return fmt.Errorf("unsupported expression: %v", expr)
}
}
-func (un *unparser) visitCall(expr *exprpb.Expr) error {
- c := expr.GetCallExpr()
- fun := c.GetFunction()
+func (un *unparser) visitCall(expr ast.Expr) error {
+ c := expr.AsCall()
+ fun := c.FunctionName()
switch fun {
// ternary operator
case operators.Conditional:
@@ -141,10 +143,10 @@ func (un *unparser) visitCall(expr *exprpb.Expr) error {
}
}
-func (un *unparser) visitCallBinary(expr *exprpb.Expr) error {
- c := expr.GetCallExpr()
- fun := c.GetFunction()
- args := c.GetArgs()
+func (un *unparser) visitCallBinary(expr ast.Expr) error {
+ c := expr.AsCall()
+ fun := c.FunctionName()
+ args := c.Args()
lhs := args[0]
// add parens if the current operator is lower precedence than the lhs expr operator.
lhsParen := isComplexOperatorWithRespectTo(fun, lhs)
@@ -168,9 +170,9 @@ func (un *unparser) visitCallBinary(expr *exprpb.Expr) error {
return un.visitMaybeNested(rhs, rhsParen)
}
-func (un *unparser) visitCallConditional(expr *exprpb.Expr) error {
- c := expr.GetCallExpr()
- args := c.GetArgs()
+func (un *unparser) visitCallConditional(expr ast.Expr) error {
+ c := expr.AsCall()
+ args := c.Args()
// add parens if operand is a conditional itself.
nested := isSamePrecedence(operators.Conditional, args[0]) ||
isComplexOperator(args[0])
@@ -196,13 +198,13 @@ func (un *unparser) visitCallConditional(expr *exprpb.Expr) error {
return un.visitMaybeNested(args[2], nested)
}
-func (un *unparser) visitCallFunc(expr *exprpb.Expr) error {
- c := expr.GetCallExpr()
- fun := c.GetFunction()
- args := c.GetArgs()
- if c.GetTarget() != nil {
- nested := isBinaryOrTernaryOperator(c.GetTarget())
- err := un.visitMaybeNested(c.GetTarget(), nested)
+func (un *unparser) visitCallFunc(expr ast.Expr) error {
+ c := expr.AsCall()
+ fun := c.FunctionName()
+ args := c.Args()
+ if c.IsMemberFunction() {
+ nested := isBinaryOrTernaryOperator(c.Target())
+ err := un.visitMaybeNested(c.Target(), nested)
if err != nil {
return err
}
@@ -223,17 +225,17 @@ func (un *unparser) visitCallFunc(expr *exprpb.Expr) error {
return nil
}
-func (un *unparser) visitCallIndex(expr *exprpb.Expr) error {
+func (un *unparser) visitCallIndex(expr ast.Expr) error {
return un.visitCallIndexInternal(expr, "[")
}
-func (un *unparser) visitCallOptIndex(expr *exprpb.Expr) error {
+func (un *unparser) visitCallOptIndex(expr ast.Expr) error {
return un.visitCallIndexInternal(expr, "[?")
}
-func (un *unparser) visitCallIndexInternal(expr *exprpb.Expr, op string) error {
- c := expr.GetCallExpr()
- args := c.GetArgs()
+func (un *unparser) visitCallIndexInternal(expr ast.Expr, op string) error {
+ c := expr.AsCall()
+ args := c.Args()
nested := isBinaryOrTernaryOperator(args[0])
err := un.visitMaybeNested(args[0], nested)
if err != nil {
@@ -248,10 +250,10 @@ func (un *unparser) visitCallIndexInternal(expr *exprpb.Expr, op string) error {
return nil
}
-func (un *unparser) visitCallUnary(expr *exprpb.Expr) error {
- c := expr.GetCallExpr()
- fun := c.GetFunction()
- args := c.GetArgs()
+func (un *unparser) visitCallUnary(expr ast.Expr) error {
+ c := expr.AsCall()
+ fun := c.FunctionName()
+ args := c.Args()
unmangled, found := operators.FindReverse(fun)
if !found {
return fmt.Errorf("cannot unmangle operator: %s", fun)
@@ -261,35 +263,34 @@ func (un *unparser) visitCallUnary(expr *exprpb.Expr) error {
return un.visitMaybeNested(args[0], nested)
}
-func (un *unparser) visitConst(expr *exprpb.Expr) error {
- c := expr.GetConstExpr()
- switch c.GetConstantKind().(type) {
- case *exprpb.Constant_BoolValue:
- un.str.WriteString(strconv.FormatBool(c.GetBoolValue()))
- case *exprpb.Constant_BytesValue:
+func (un *unparser) visitConst(expr ast.Expr) error {
+ val := expr.AsLiteral()
+ switch val := val.(type) {
+ case types.Bool:
+ un.str.WriteString(strconv.FormatBool(bool(val)))
+ case types.Bytes:
// bytes constants are surrounded with b"<bytes>"
- b := c.GetBytesValue()
un.str.WriteString(`b"`)
- un.str.WriteString(bytesToOctets(b))
+ un.str.WriteString(bytesToOctets([]byte(val)))
un.str.WriteString(`"`)
- case *exprpb.Constant_DoubleValue:
+ case types.Double:
// represent the float using the minimum required digits
- d := strconv.FormatFloat(c.GetDoubleValue(), 'g', -1, 64)
+ d := strconv.FormatFloat(float64(val), 'g', -1, 64)
un.str.WriteString(d)
if !strings.Contains(d, ".") {
un.str.WriteString(".0")
}
- case *exprpb.Constant_Int64Value:
- i := strconv.FormatInt(c.GetInt64Value(), 10)
+ case types.Int:
+ i := strconv.FormatInt(int64(val), 10)
un.str.WriteString(i)
- case *exprpb.Constant_NullValue:
+ case types.Null:
un.str.WriteString("null")
- case *exprpb.Constant_StringValue:
+ case types.String:
// strings will be double quoted with quotes escaped.
- un.str.WriteString(strconv.Quote(c.GetStringValue()))
- case *exprpb.Constant_Uint64Value:
+ un.str.WriteString(strconv.Quote(string(val)))
+ case types.Uint:
// uint literals have a 'u' suffix.
- ui := strconv.FormatUint(c.GetUint64Value(), 10)
+ ui := strconv.FormatUint(uint64(val), 10)
un.str.WriteString(ui)
un.str.WriteString("u")
default:
@@ -298,16 +299,16 @@ func (un *unparser) visitConst(expr *exprpb.Expr) error {
return nil
}
-func (un *unparser) visitIdent(expr *exprpb.Expr) error {
- un.str.WriteString(expr.GetIdentExpr().GetName())
+func (un *unparser) visitIdent(expr ast.Expr) error {
+ un.str.WriteString(expr.AsIdent())
return nil
}
-func (un *unparser) visitList(expr *exprpb.Expr) error {
- l := expr.GetListExpr()
- elems := l.GetElements()
+func (un *unparser) visitList(expr ast.Expr) error {
+ l := expr.AsList()
+ elems := l.Elements()
optIndices := make(map[int]bool, len(elems))
- for _, idx := range l.GetOptionalIndices() {
+ for _, idx := range l.OptionalIndices() {
optIndices[int(idx)] = true
}
un.str.WriteString("[")
@@ -327,20 +328,20 @@ func (un *unparser) visitList(expr *exprpb.Expr) error {
return nil
}
-func (un *unparser) visitOptSelect(expr *exprpb.Expr) error {
- c := expr.GetCallExpr()
- args := c.GetArgs()
+func (un *unparser) visitOptSelect(expr ast.Expr) error {
+ c := expr.AsCall()
+ args := c.Args()
operand := args[0]
- field := args[1].GetConstExpr().GetStringValue()
- return un.visitSelectInternal(operand, false, ".?", field)
+ field := args[1].AsLiteral().(types.String)
+ return un.visitSelectInternal(operand, false, ".?", string(field))
}
-func (un *unparser) visitSelect(expr *exprpb.Expr) error {
- sel := expr.GetSelectExpr()
- return un.visitSelectInternal(sel.GetOperand(), sel.GetTestOnly(), ".", sel.GetField())
+func (un *unparser) visitSelect(expr ast.Expr) error {
+ sel := expr.AsSelect()
+ return un.visitSelectInternal(sel.Operand(), sel.IsTestOnly(), ".", sel.FieldName())
}
-func (un *unparser) visitSelectInternal(operand *exprpb.Expr, testOnly bool, op string, field string) error {
+func (un *unparser) visitSelectInternal(operand ast.Expr, testOnly bool, op string, field string) error {
// handle the case when the select expression was generated by the has() macro.
if testOnly {
un.str.WriteString("has(")
@@ -358,34 +359,25 @@ func (un *unparser) visitSelectInternal(operand *exprpb.Expr, testOnly bool, op
return nil
}
-func (un *unparser) visitStruct(expr *exprpb.Expr) error {
- s := expr.GetStructExpr()
- // If the message name is non-empty, then this should be treated as message construction.
- if s.GetMessageName() != "" {
- return un.visitStructMsg(expr)
- }
- // Otherwise, build a map.
- return un.visitStructMap(expr)
-}
-
-func (un *unparser) visitStructMsg(expr *exprpb.Expr) error {
- m := expr.GetStructExpr()
- entries := m.GetEntries()
- un.str.WriteString(m.GetMessageName())
+func (un *unparser) visitStructMsg(expr ast.Expr) error {
+ m := expr.AsStruct()
+ fields := m.Fields()
+ un.str.WriteString(m.TypeName())
un.str.WriteString("{")
- for i, entry := range entries {
- f := entry.GetFieldKey()
- if entry.GetOptionalEntry() {
+ for i, f := range fields {
+ field := f.AsStructField()
+ f := field.Name()
+ if field.IsOptional() {
un.str.WriteString("?")
}
un.str.WriteString(f)
un.str.WriteString(": ")
- v := entry.GetValue()
+ v := field.Value()
err := un.visit(v)
if err != nil {
return err
}
- if i < len(entries)-1 {
+ if i < len(fields)-1 {
un.str.WriteString(", ")
}
}
@@ -393,13 +385,14 @@ func (un *unparser) visitStructMsg(expr *exprpb.Expr) error {
return nil
}
-func (un *unparser) visitStructMap(expr *exprpb.Expr) error {
- m := expr.GetStructExpr()
- entries := m.GetEntries()
+func (un *unparser) visitStructMap(expr ast.Expr) error {
+ m := expr.AsMap()
+ entries := m.Entries()
un.str.WriteString("{")
- for i, entry := range entries {
- k := entry.GetMapKey()
- if entry.GetOptionalEntry() {
+ for i, e := range entries {
+ entry := e.AsMapEntry()
+ k := entry.Key()
+ if entry.IsOptional() {
un.str.WriteString("?")
}
err := un.visit(k)
@@ -407,7 +400,7 @@ func (un *unparser) visitStructMap(expr *exprpb.Expr) error {
return err
}
un.str.WriteString(": ")
- v := entry.GetValue()
+ v := entry.Value()
err = un.visit(v)
if err != nil {
return err
@@ -420,16 +413,15 @@ func (un *unparser) visitStructMap(expr *exprpb.Expr) error {
return nil
}
-func (un *unparser) visitMaybeMacroCall(expr *exprpb.Expr) (bool, error) {
- macroCalls := un.info.GetMacroCalls()
- call, found := macroCalls[expr.GetId()]
+func (un *unparser) visitMaybeMacroCall(expr ast.Expr) (bool, error) {
+ call, found := un.info.GetMacroCall(expr.ID())
if !found {
return false, nil
}
return true, un.visit(call)
}
-func (un *unparser) visitMaybeNested(expr *exprpb.Expr, nested bool) error {
+func (un *unparser) visitMaybeNested(expr ast.Expr, nested bool) error {
if nested {
un.str.WriteString("(")
}
@@ -453,12 +445,12 @@ func isLeftRecursive(op string) bool {
// precedence of the (possible) operation represented in the input Expr.
//
// If the expr is not a Call, the result is false.
-func isSamePrecedence(op string, expr *exprpb.Expr) bool {
- if expr.GetCallExpr() == nil {
+func isSamePrecedence(op string, expr ast.Expr) bool {
+ if expr.Kind() != ast.CallKind {
return false
}
- c := expr.GetCallExpr()
- other := c.GetFunction()
+ c := expr.AsCall()
+ other := c.FunctionName()
return operators.Precedence(op) == operators.Precedence(other)
}
@@ -466,16 +458,16 @@ func isSamePrecedence(op string, expr *exprpb.Expr) bool {
// than the (possible) operation represented in the input Expr.
//
// If the expr is not a Call, the result is false.
-func isLowerPrecedence(op string, expr *exprpb.Expr) bool {
- c := expr.GetCallExpr()
- other := c.GetFunction()
+func isLowerPrecedence(op string, expr ast.Expr) bool {
+ c := expr.AsCall()
+ other := c.FunctionName()
return operators.Precedence(op) < operators.Precedence(other)
}
// Indicates whether the expr is a complex operator, i.e., a call expression
// with 2 or more arguments.
-func isComplexOperator(expr *exprpb.Expr) bool {
- if expr.GetCallExpr() != nil && len(expr.GetCallExpr().GetArgs()) >= 2 {
+func isComplexOperator(expr ast.Expr) bool {
+ if expr.Kind() == ast.CallKind && len(expr.AsCall().Args()) >= 2 {
return true
}
return false
@@ -484,19 +476,19 @@ func isComplexOperator(expr *exprpb.Expr) bool {
// Indicates whether it is a complex operation compared to another.
// expr is *not* considered complex if it is not a call expression or has
// less than two arguments, or if it has a higher precedence than op.
-func isComplexOperatorWithRespectTo(op string, expr *exprpb.Expr) bool {
- if expr.GetCallExpr() == nil || len(expr.GetCallExpr().GetArgs()) < 2 {
+func isComplexOperatorWithRespectTo(op string, expr ast.Expr) bool {
+ if expr.Kind() != ast.CallKind || len(expr.AsCall().Args()) < 2 {
return false
}
return isLowerPrecedence(op, expr)
}
// Indicate whether this is a binary or ternary operator.
-func isBinaryOrTernaryOperator(expr *exprpb.Expr) bool {
- if expr.GetCallExpr() == nil || len(expr.GetCallExpr().GetArgs()) < 2 {
+func isBinaryOrTernaryOperator(expr ast.Expr) bool {
+ if expr.Kind() != ast.CallKind || len(expr.AsCall().Args()) < 2 {
return false
}
- _, isBinaryOp := operators.FindReverseBinaryOperator(expr.GetCallExpr().GetFunction())
+ _, isBinaryOp := operators.FindReverseBinaryOperator(expr.AsCall().FunctionName())
return isBinaryOp || isSamePrecedence(operators.Conditional, expr)
}
diff --git a/vendor/github.com/google/certificate-transparency-go/AUTHORS b/vendor/github.com/google/certificate-transparency-go/AUTHORS
index 942cec9..ad51466 100644
--- a/vendor/github.com/google/certificate-transparency-go/AUTHORS
+++ b/vendor/github.com/google/certificate-transparency-go/AUTHORS
@@ -9,8 +9,8 @@
# Please keep the list sorted.
Alex Cohn <alex@alexcohn.com>
-Comodo CA Limited
Ed Maste <emaste@freebsd.org>
+Elisha Silas <silaselisha66@gmail.com>
Fiaz Hossain <fiaz.hossain@salesforce.com>
Google LLC
Internet Security Research Group
@@ -23,6 +23,7 @@ Nicholas Galbreath <nickg@client9.com>
Oliver Weidner <Oliver.Weidner@gmail.com>
PrimeKey Solutions AB
Ruslan Kovalov <ruslan.kovalyov@gmail.com>
+Sectigo Limited
Venafi, Inc.
Vladimir Rutsky <vladimir@rutsky.org>
Ximin Luo <infinity0@gmx.com>
diff --git a/vendor/github.com/google/certificate-transparency-go/CONTRIBUTORS b/vendor/github.com/google/certificate-transparency-go/CONTRIBUTORS
index 4d04dc6..3a98a7e 100644
--- a/vendor/github.com/google/certificate-transparency-go/CONTRIBUTORS
+++ b/vendor/github.com/google/certificate-transparency-go/CONTRIBUTORS
@@ -30,6 +30,7 @@ Chris Kennelly <ckennelly@google.com> <ckennelly@ckennelly.com>
David Drysdale <drysdale@google.com>
Deyan Bektchiev <deyan.bektchiev@venafi.com> <deyan@bektchiev.net>
Ed Maste <emaste@freebsd.org>
+Elisha Silas <silaselisha66@gmail.com>
Emilia Kasper <ekasper@google.com>
Eran Messeri <eranm@google.com> <eran.mes@gmail.com>
Fiaz Hossain <fiaz.hossain@salesforce.com>
@@ -51,7 +52,7 @@ Paul Lietar <lietar@google.com>
Pavel Kalinnikov <pkalinnikov@google.com> <pavelkalinnikov@gmail.com>
Pierre Phaneuf <pphaneuf@google.com>
Rob Percival <robpercival@google.com>
-Rob Stradling <rob@comodo.com>
+Rob Stradling <rob@sectigo.com>
Roger Ng <rogerng@google.com> <roger2hk@gmail.com>
Roland Shoemaker <roland@letsencrypt.org>
Ruslan Kovalov <ruslan.kovalyov@gmail.com>
diff --git a/vendor/github.com/google/certificate-transparency-go/tls/tls.go b/vendor/github.com/google/certificate-transparency-go/tls/tls.go
index 030074c..a48c998 100644
--- a/vendor/github.com/google/certificate-transparency-go/tls/tls.go
+++ b/vendor/github.com/google/certificate-transparency-go/tls/tls.go
@@ -638,7 +638,7 @@ func marshalField(out *bytes.Buffer, v reflect.Value, info *fieldInfo) error {
}
}
// Now we have seen all fields in the structure, check that all select(Enum) {..} selector
- // fields found a source field get get their data from.
+ // fields found a source field to get their data from.
for selector, seen := range selectorSeen {
if !seen {
return syntaxError{info.fieldName(), selector + ": unhandled value for selector"}
diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_aix.go b/vendor/github.com/google/certificate-transparency-go/x509/root_aix.go
new file mode 100644
index 0000000..6d42773
--- /dev/null
+++ b/vendor/github.com/google/certificate-transparency-go/x509/root_aix.go
@@ -0,0 +1,10 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package x509
+
+// Possible certificate files; stop after finding one.
+var certFiles = []string{
+ "/var/ssl/certs/ca-bundle.crt",
+}
diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_unix.go b/vendor/github.com/google/certificate-transparency-go/x509/root_unix.go
index d00842a..ac2d01d 100644
--- a/vendor/github.com/google/certificate-transparency-go/x509/root_unix.go
+++ b/vendor/github.com/google/certificate-transparency-go/x509/root_unix.go
@@ -2,8 +2,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-//go:build dragonfly || freebsd || linux || netbsd || openbsd || solaris
-// +build dragonfly freebsd linux netbsd openbsd solaris
+//go:build aix || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
+// +build aix dragonfly freebsd linux netbsd openbsd solaris zos
package x509
@@ -19,6 +19,7 @@ var certDirectories = []string{
"/usr/local/share/certs", // FreeBSD
"/etc/pki/tls/certs", // Fedora/RHEL
"/etc/openssl/certs", // NetBSD
+ "/var/ssl/certs", // AIX
}
const (
diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_wasip1.go b/vendor/github.com/google/certificate-transparency-go/x509/root_wasip1.go
new file mode 100644
index 0000000..e5cf98e
--- /dev/null
+++ b/vendor/github.com/google/certificate-transparency-go/x509/root_wasip1.go
@@ -0,0 +1,19 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build wasip1
+// +build wasip1
+
+package x509
+
+// Possible certificate files; stop after finding one.
+var certFiles = []string{}
+
+func loadSystemRoots() (*CertPool, error) {
+ return NewCertPool(), nil
+}
+
+func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) {
+ return nil, nil
+}
diff --git a/vendor/github.com/google/certificate-transparency-go/x509/root_zos.go b/vendor/github.com/google/certificate-transparency-go/x509/root_zos.go
new file mode 100644
index 0000000..54f240a
--- /dev/null
+++ b/vendor/github.com/google/certificate-transparency-go/x509/root_zos.go
@@ -0,0 +1,13 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build zos
+// +build zos
+
+package x509
+
+// Possible certificate files; stop after finding one.
+var certFiles = []string{
+ "/etc/cacert.pem", // IBM zOS default
+}
diff --git a/vendor/github.com/google/go-tpm/legacy/tpm2/tpm2.go b/vendor/github.com/google/go-tpm/legacy/tpm2/tpm2.go
index 8de0c40..18d5a96 100644
--- a/vendor/github.com/google/go-tpm/legacy/tpm2/tpm2.go
+++ b/vendor/github.com/google/go-tpm/legacy/tpm2/tpm2.go
@@ -1276,7 +1276,6 @@ func NVDefineSpace(rw io.ReadWriter, owner, handle tpmutil.Handle, ownerAuth, au
Auth: []byte(ownerAuth),
}
return NVDefineSpaceEx(rw, owner, authString, nvPub, authArea)
-
}
// NVDefineSpaceEx accepts NVPublic structure and AuthCommand, allowing more flexibility.
@@ -2121,12 +2120,12 @@ func RSAEncrypt(rw io.ReadWriter, key tpmutil.Handle, message []byte, scheme *As
return decodeRSAEncrypt(resp)
}
-func encodeRSADecrypt(key tpmutil.Handle, password string, message tpmutil.U16Bytes, scheme *AsymScheme, label string) ([]byte, error) {
+func encodeRSADecrypt(sessionHandle, key tpmutil.Handle, password string, message tpmutil.U16Bytes, scheme *AsymScheme, label string) ([]byte, error) {
ha, err := tpmutil.Pack(key)
if err != nil {
return nil, err
}
- auth, err := encodeAuthArea(AuthCommand{Session: HandlePasswordSession, Attributes: AttrContinueSession, Auth: []byte(password)})
+ auth, err := encodeAuthArea(AuthCommand{Session: sessionHandle, Attributes: AttrContinueSession, Auth: []byte(password)})
if err != nil {
return nil, err
}
@@ -2160,7 +2159,15 @@ func decodeRSADecrypt(resp []byte) ([]byte, error) {
// label, a null byte is appended to the label and the null byte is included in the
// padding scheme.
func RSADecrypt(rw io.ReadWriter, key tpmutil.Handle, password string, message []byte, scheme *AsymScheme, label string) ([]byte, error) {
- Cmd, err := encodeRSADecrypt(key, password, message, scheme, label)
+ return RSADecryptWithSession(rw, HandlePasswordSession, key, password, message, scheme, label)
+}
+
+// RSADecryptWithSession performs RSA decryption in the TPM according to RFC 3447. The key must be
+// a private RSA key in the TPM with FlagDecrypt set. Note that when using OAEP with a
+// label, a null byte is appended to the label and the null byte is included in the
+// padding scheme.
+func RSADecryptWithSession(rw io.ReadWriter, sessionHandle, key tpmutil.Handle, password string, message []byte, scheme *AsymScheme, label string) ([]byte, error) {
+ Cmd, err := encodeRSADecrypt(sessionHandle, key, password, message, scheme, label)
if err != nil {
return nil, err
}
diff --git a/vendor/github.com/google/pprof/profile/encode.go b/vendor/github.com/google/pprof/profile/encode.go
index ab7f03a..8ce9d3c 100644
--- a/vendor/github.com/google/pprof/profile/encode.go
+++ b/vendor/github.com/google/pprof/profile/encode.go
@@ -17,6 +17,7 @@ package profile
import (
"errors"
"sort"
+ "strings"
)
func (p *Profile) decoder() []decoder {
@@ -121,6 +122,7 @@ func (p *Profile) preEncode() {
}
p.defaultSampleTypeX = addString(strings, p.DefaultSampleType)
+ p.docURLX = addString(strings, p.DocURL)
p.stringTable = make([]string, len(strings))
for s, i := range strings {
@@ -155,6 +157,7 @@ func (p *Profile) encode(b *buffer) {
encodeInt64Opt(b, 12, p.Period)
encodeInt64s(b, 13, p.commentX)
encodeInt64(b, 14, p.defaultSampleTypeX)
+ encodeInt64Opt(b, 15, p.docURLX)
}
var profileDecoder = []decoder{
@@ -183,12 +186,13 @@ var profileDecoder = []decoder{
// repeated Location location = 4
func(b *buffer, m message) error {
x := new(Location)
- x.Line = make([]Line, 0, 8) // Pre-allocate Line buffer
+ x.Line = b.tmpLines[:0] // Use shared space temporarily
pp := m.(*Profile)
pp.Location = append(pp.Location, x)
err := decodeMessage(b, x)
- var tmp []Line
- x.Line = append(tmp, x.Line...) // Shrink to allocated size
+ b.tmpLines = x.Line[:0]
+ // Copy to shrink size and detach from shared space.
+ x.Line = append([]Line(nil), x.Line...)
return err
},
// repeated Function function = 5
@@ -235,6 +239,8 @@ var profileDecoder = []decoder{
func(b *buffer, m message) error { return decodeInt64s(b, &m.(*Profile).commentX) },
// int64 defaultSampleType = 14
func(b *buffer, m message) error { return decodeInt64(b, &m.(*Profile).defaultSampleTypeX) },
+ // string doc_link = 15;
+ func(b *buffer, m message) error { return decodeInt64(b, &m.(*Profile).docURLX) },
}
// postDecode takes the unexported fields populated by decode (with
@@ -252,6 +258,14 @@ func (p *Profile) postDecode() error {
} else {
mappings[m.ID] = m
}
+
+ // If this a main linux kernel mapping with a relocation symbol suffix
+ // ("[kernel.kallsyms]_text"), extract said suffix.
+ // It is fairly hacky to handle at this level, but the alternatives appear even worse.
+ const prefix = "[kernel.kallsyms]"
+ if strings.HasPrefix(m.File, prefix) {
+ m.KernelRelocationSymbol = m.File[len(prefix):]
+ }
}
functions := make(map[uint64]*Function, len(p.Function))
@@ -298,41 +312,52 @@ func (p *Profile) postDecode() error {
st.Unit, err = getString(p.stringTable, &st.unitX, err)
}
+ // Pre-allocate space for all locations.
+ numLocations := 0
+ for _, s := range p.Sample {
+ numLocations += len(s.locationIDX)
+ }
+ locBuffer := make([]*Location, numLocations)
+
for _, s := range p.Sample {
- labels := make(map[string][]string, len(s.labelX))
- numLabels := make(map[string][]int64, len(s.labelX))
- numUnits := make(map[string][]string, len(s.labelX))
- for _, l := range s.labelX {
- var key, value string
- key, err = getString(p.stringTable, &l.keyX, err)
- if l.strX != 0 {
- value, err = getString(p.stringTable, &l.strX, err)
- labels[key] = append(labels[key], value)
- } else if l.numX != 0 || l.unitX != 0 {
- numValues := numLabels[key]
- units := numUnits[key]
- if l.unitX != 0 {
- var unit string
- unit, err = getString(p.stringTable, &l.unitX, err)
- units = padStringArray(units, len(numValues))
- numUnits[key] = append(units, unit)
+ if len(s.labelX) > 0 {
+ labels := make(map[string][]string, len(s.labelX))
+ numLabels := make(map[string][]int64, len(s.labelX))
+ numUnits := make(map[string][]string, len(s.labelX))
+ for _, l := range s.labelX {
+ var key, value string
+ key, err = getString(p.stringTable, &l.keyX, err)
+ if l.strX != 0 {
+ value, err = getString(p.stringTable, &l.strX, err)
+ labels[key] = append(labels[key], value)
+ } else if l.numX != 0 || l.unitX != 0 {
+ numValues := numLabels[key]
+ units := numUnits[key]
+ if l.unitX != 0 {
+ var unit string
+ unit, err = getString(p.stringTable, &l.unitX, err)
+ units = padStringArray(units, len(numValues))
+ numUnits[key] = append(units, unit)
+ }
+ numLabels[key] = append(numLabels[key], l.numX)
}
- numLabels[key] = append(numLabels[key], l.numX)
}
- }
- if len(labels) > 0 {
- s.Label = labels
- }
- if len(numLabels) > 0 {
- s.NumLabel = numLabels
- for key, units := range numUnits {
- if len(units) > 0 {
- numUnits[key] = padStringArray(units, len(numLabels[key]))
+ if len(labels) > 0 {
+ s.Label = labels
+ }
+ if len(numLabels) > 0 {
+ s.NumLabel = numLabels
+ for key, units := range numUnits {
+ if len(units) > 0 {
+ numUnits[key] = padStringArray(units, len(numLabels[key]))
+ }
}
+ s.NumUnit = numUnits
}
- s.NumUnit = numUnits
}
- s.Location = make([]*Location, len(s.locationIDX))
+
+ s.Location = locBuffer[:len(s.locationIDX)]
+ locBuffer = locBuffer[len(s.locationIDX):]
for i, lid := range s.locationIDX {
if lid < uint64(len(locationIds)) {
s.Location[i] = locationIds[lid]
@@ -363,6 +388,7 @@ func (p *Profile) postDecode() error {
p.commentX = nil
p.DefaultSampleType, err = getString(p.stringTable, &p.defaultSampleTypeX, err)
+ p.DocURL, err = getString(p.stringTable, &p.docURLX, err)
p.stringTable = nil
return err
}
@@ -509,6 +535,7 @@ func (p *Line) decoder() []decoder {
func (p *Line) encode(b *buffer) {
encodeUint64Opt(b, 1, p.functionIDX)
encodeInt64Opt(b, 2, p.Line)
+ encodeInt64Opt(b, 3, p.Column)
}
var lineDecoder = []decoder{
@@ -517,6 +544,8 @@ var lineDecoder = []decoder{
func(b *buffer, m message) error { return decodeUint64(b, &m.(*Line).functionIDX) },
// optional int64 line = 2
func(b *buffer, m message) error { return decodeInt64(b, &m.(*Line).Line) },
+ // optional int64 column = 3
+ func(b *buffer, m message) error { return decodeInt64(b, &m.(*Line).Column) },
}
func (p *Function) decoder() []decoder {
diff --git a/vendor/github.com/google/pprof/profile/filter.go b/vendor/github.com/google/pprof/profile/filter.go
index ea8e66c..c794b93 100644
--- a/vendor/github.com/google/pprof/profile/filter.go
+++ b/vendor/github.com/google/pprof/profile/filter.go
@@ -22,6 +22,10 @@ import "regexp"
// samples where at least one frame matches focus but none match ignore.
// Returns true is the corresponding regexp matched at least one sample.
func (p *Profile) FilterSamplesByName(focus, ignore, hide, show *regexp.Regexp) (fm, im, hm, hnm bool) {
+ if focus == nil && ignore == nil && hide == nil && show == nil {
+ fm = true // Missing focus implies a match
+ return
+ }
focusOrIgnore := make(map[uint64]bool)
hidden := make(map[uint64]bool)
for _, l := range p.Location {
diff --git a/vendor/github.com/google/pprof/profile/legacy_java_profile.go b/vendor/github.com/google/pprof/profile/legacy_java_profile.go
index 91f45e5..4580bab 100644
--- a/vendor/github.com/google/pprof/profile/legacy_java_profile.go
+++ b/vendor/github.com/google/pprof/profile/legacy_java_profile.go
@@ -56,7 +56,7 @@ func javaCPUProfile(b []byte, period int64, parse func(b []byte) (uint64, []byte
}
// Strip out addresses for better merge.
- if err = p.Aggregate(true, true, true, true, false); err != nil {
+ if err = p.Aggregate(true, true, true, true, false, false); err != nil {
return nil, err
}
@@ -99,7 +99,7 @@ func parseJavaProfile(b []byte) (*Profile, error) {
}
// Strip out addresses for better merge.
- if err = p.Aggregate(true, true, true, true, false); err != nil {
+ if err = p.Aggregate(true, true, true, true, false, false); err != nil {
return nil, err
}
diff --git a/vendor/github.com/google/pprof/profile/legacy_profile.go b/vendor/github.com/google/pprof/profile/legacy_profile.go
index 0c8f3bb..8d07fd6 100644
--- a/vendor/github.com/google/pprof/profile/legacy_profile.go
+++ b/vendor/github.com/google/pprof/profile/legacy_profile.go
@@ -295,11 +295,12 @@ func get64b(b []byte) (uint64, []byte) {
//
// The general format for profilez samples is a sequence of words in
// binary format. The first words are a header with the following data:
-// 1st word -- 0
-// 2nd word -- 3
-// 3rd word -- 0 if a c++ application, 1 if a java application.
-// 4th word -- Sampling period (in microseconds).
-// 5th word -- Padding.
+//
+// 1st word -- 0
+// 2nd word -- 3
+// 3rd word -- 0 if a c++ application, 1 if a java application.
+// 4th word -- Sampling period (in microseconds).
+// 5th word -- Padding.
func parseCPU(b []byte) (*Profile, error) {
var parse func([]byte) (uint64, []byte)
var n1, n2, n3, n4, n5 uint64
@@ -403,15 +404,18 @@ func cleanupDuplicateLocations(p *Profile) {
//
// profilez samples are a repeated sequence of stack frames of the
// form:
-// 1st word -- The number of times this stack was encountered.
-// 2nd word -- The size of the stack (StackSize).
-// 3rd word -- The first address on the stack.
-// ...
-// StackSize + 2 -- The last address on the stack
+//
+// 1st word -- The number of times this stack was encountered.
+// 2nd word -- The size of the stack (StackSize).
+// 3rd word -- The first address on the stack.
+// ...
+// StackSize + 2 -- The last address on the stack
+//
// The last stack trace is of the form:
-// 1st word -- 0
-// 2nd word -- 1
-// 3rd word -- 0
+//
+// 1st word -- 0
+// 2nd word -- 1
+// 3rd word -- 0
//
// Addresses from stack traces may point to the next instruction after
// each call. Optionally adjust by -1 to land somewhere on the actual
@@ -861,7 +865,6 @@ func parseThread(b []byte) (*Profile, error) {
// Recognize each thread and populate profile samples.
for !isMemoryMapSentinel(line) {
if strings.HasPrefix(line, "---- no stack trace for") {
- line = ""
break
}
if t := threadStartRE.FindStringSubmatch(line); len(t) != 4 {
diff --git a/vendor/github.com/google/pprof/profile/merge.go b/vendor/github.com/google/pprof/profile/merge.go
index 9978e73..ba4d746 100644
--- a/vendor/github.com/google/pprof/profile/merge.go
+++ b/vendor/github.com/google/pprof/profile/merge.go
@@ -15,6 +15,7 @@
package profile
import (
+ "encoding/binary"
"fmt"
"sort"
"strconv"
@@ -58,7 +59,7 @@ func Merge(srcs []*Profile) (*Profile, error) {
for _, src := range srcs {
// Clear the profile-specific hash tables
- pm.locationsByID = make(map[uint64]*Location, len(src.Location))
+ pm.locationsByID = makeLocationIDMap(len(src.Location))
pm.functionsByID = make(map[uint64]*Function, len(src.Function))
pm.mappingsByID = make(map[uint64]mapInfo, len(src.Mapping))
@@ -136,7 +137,7 @@ type profileMerger struct {
p *Profile
// Memoization tables within a profile.
- locationsByID map[uint64]*Location
+ locationsByID locationIDMap
functionsByID map[uint64]*Function
mappingsByID map[uint64]mapInfo
@@ -153,6 +154,16 @@ type mapInfo struct {
}
func (pm *profileMerger) mapSample(src *Sample) *Sample {
+ // Check memoization table
+ k := pm.sampleKey(src)
+ if ss, ok := pm.samples[k]; ok {
+ for i, v := range src.Value {
+ ss.Value[i] += v
+ }
+ return ss
+ }
+
+ // Make new sample.
s := &Sample{
Location: make([]*Location, len(src.Location)),
Value: make([]int64, len(src.Value)),
@@ -177,52 +188,98 @@ func (pm *profileMerger) mapSample(src *Sample) *Sample {
s.NumLabel[k] = vv
s.NumUnit[k] = uu
}
- // Check memoization table. Must be done on the remapped location to
- // account for the remapped mapping. Add current values to the
- // existing sample.
- k := s.key()
- if ss, ok := pm.samples[k]; ok {
- for i, v := range src.Value {
- ss.Value[i] += v
- }
- return ss
- }
copy(s.Value, src.Value)
pm.samples[k] = s
pm.p.Sample = append(pm.p.Sample, s)
return s
}
-// key generates sampleKey to be used as a key for maps.
-func (sample *Sample) key() sampleKey {
- ids := make([]string, len(sample.Location))
- for i, l := range sample.Location {
- ids[i] = strconv.FormatUint(l.ID, 16)
+func (pm *profileMerger) sampleKey(sample *Sample) sampleKey {
+ // Accumulate contents into a string.
+ var buf strings.Builder
+ buf.Grow(64) // Heuristic to avoid extra allocs
+
+ // encode a number
+ putNumber := func(v uint64) {
+ var num [binary.MaxVarintLen64]byte
+ n := binary.PutUvarint(num[:], v)
+ buf.Write(num[:n])
+ }
+
+ // encode a string prefixed with its length.
+ putDelimitedString := func(s string) {
+ putNumber(uint64(len(s)))
+ buf.WriteString(s)
+ }
+
+ for _, l := range sample.Location {
+ // Get the location in the merged profile, which may have a different ID.
+ if loc := pm.mapLocation(l); loc != nil {
+ putNumber(loc.ID)
+ }
}
+ putNumber(0) // Delimiter
- labels := make([]string, 0, len(sample.Label))
- for k, v := range sample.Label {
- labels = append(labels, fmt.Sprintf("%q%q", k, v))
+ for _, l := range sortedKeys1(sample.Label) {
+ putDelimitedString(l)
+ values := sample.Label[l]
+ putNumber(uint64(len(values)))
+ for _, v := range values {
+ putDelimitedString(v)
+ }
}
- sort.Strings(labels)
- numlabels := make([]string, 0, len(sample.NumLabel))
- for k, v := range sample.NumLabel {
- numlabels = append(numlabels, fmt.Sprintf("%q%x%x", k, v, sample.NumUnit[k]))
+ for _, l := range sortedKeys2(sample.NumLabel) {
+ putDelimitedString(l)
+ values := sample.NumLabel[l]
+ putNumber(uint64(len(values)))
+ for _, v := range values {
+ putNumber(uint64(v))
+ }
+ units := sample.NumUnit[l]
+ putNumber(uint64(len(units)))
+ for _, v := range units {
+ putDelimitedString(v)
+ }
}
- sort.Strings(numlabels)
- return sampleKey{
- strings.Join(ids, "|"),
- strings.Join(labels, ""),
- strings.Join(numlabels, ""),
+ return sampleKey(buf.String())
+}
+
+type sampleKey string
+
+// sortedKeys1 returns the sorted keys found in a string->[]string map.
+//
+// Note: this is currently non-generic since github pprof runs golint,
+// which does not support generics. When that issue is fixed, it can
+// be merged with sortedKeys2 and made into a generic function.
+func sortedKeys1(m map[string][]string) []string {
+ if len(m) == 0 {
+ return nil
}
+ keys := make([]string, 0, len(m))
+ for k := range m {
+ keys = append(keys, k)
+ }
+ sort.Strings(keys)
+ return keys
}
-type sampleKey struct {
- locations string
- labels string
- numlabels string
+// sortedKeys2 returns the sorted keys found in a string->[]int64 map.
+//
+// Note: this is currently non-generic since github pprof runs golint,
+// which does not support generics. When that issue is fixed, it can
+// be merged with sortedKeys1 and made into a generic function.
+func sortedKeys2(m map[string][]int64) []string {
+ if len(m) == 0 {
+ return nil
+ }
+ keys := make([]string, 0, len(m))
+ for k := range m {
+ keys = append(keys, k)
+ }
+ sort.Strings(keys)
+ return keys
}
func (pm *profileMerger) mapLocation(src *Location) *Location {
@@ -230,7 +287,7 @@ func (pm *profileMerger) mapLocation(src *Location) *Location {
return nil
}
- if l, ok := pm.locationsByID[src.ID]; ok {
+ if l := pm.locationsByID.get(src.ID); l != nil {
return l
}
@@ -249,10 +306,10 @@ func (pm *profileMerger) mapLocation(src *Location) *Location {
// account for the remapped mapping ID.
k := l.key()
if ll, ok := pm.locations[k]; ok {
- pm.locationsByID[src.ID] = ll
+ pm.locationsByID.set(src.ID, ll)
return ll
}
- pm.locationsByID[src.ID] = l
+ pm.locationsByID.set(src.ID, l)
pm.locations[k] = l
pm.p.Location = append(pm.p.Location, l)
return l
@@ -269,12 +326,13 @@ func (l *Location) key() locationKey {
key.addr -= l.Mapping.Start
key.mappingID = l.Mapping.ID
}
- lines := make([]string, len(l.Line)*2)
+ lines := make([]string, len(l.Line)*3)
for i, line := range l.Line {
if line.Function != nil {
lines[i*2] = strconv.FormatUint(line.Function.ID, 16)
}
lines[i*2+1] = strconv.FormatInt(line.Line, 16)
+ lines[i*2+2] = strconv.FormatInt(line.Column, 16)
}
key.lines = strings.Join(lines, "|")
return key
@@ -303,16 +361,17 @@ func (pm *profileMerger) mapMapping(src *Mapping) mapInfo {
return mi
}
m := &Mapping{
- ID: uint64(len(pm.p.Mapping) + 1),
- Start: src.Start,
- Limit: src.Limit,
- Offset: src.Offset,
- File: src.File,
- BuildID: src.BuildID,
- HasFunctions: src.HasFunctions,
- HasFilenames: src.HasFilenames,
- HasLineNumbers: src.HasLineNumbers,
- HasInlineFrames: src.HasInlineFrames,
+ ID: uint64(len(pm.p.Mapping) + 1),
+ Start: src.Start,
+ Limit: src.Limit,
+ Offset: src.Offset,
+ File: src.File,
+ KernelRelocationSymbol: src.KernelRelocationSymbol,
+ BuildID: src.BuildID,
+ HasFunctions: src.HasFunctions,
+ HasFilenames: src.HasFilenames,
+ HasLineNumbers: src.HasLineNumbers,
+ HasInlineFrames: src.HasInlineFrames,
}
pm.p.Mapping = append(pm.p.Mapping, m)
@@ -360,6 +419,7 @@ func (pm *profileMerger) mapLine(src Line) Line {
ln := Line{
Function: pm.mapFunction(src.Function),
Line: src.Line,
+ Column: src.Column,
}
return ln
}
@@ -416,6 +476,7 @@ func combineHeaders(srcs []*Profile) (*Profile, error) {
var timeNanos, durationNanos, period int64
var comments []string
seenComments := map[string]bool{}
+ var docURL string
var defaultSampleType string
for _, s := range srcs {
if timeNanos == 0 || s.TimeNanos < timeNanos {
@@ -434,6 +495,9 @@ func combineHeaders(srcs []*Profile) (*Profile, error) {
if defaultSampleType == "" {
defaultSampleType = s.DefaultSampleType
}
+ if docURL == "" {
+ docURL = s.DocURL
+ }
}
p := &Profile{
@@ -449,6 +513,7 @@ func combineHeaders(srcs []*Profile) (*Profile, error) {
Comments: comments,
DefaultSampleType: defaultSampleType,
+ DocURL: docURL,
}
copy(p.SampleType, srcs[0].SampleType)
return p, nil
@@ -479,3 +544,131 @@ func (p *Profile) compatible(pb *Profile) error {
func equalValueType(st1, st2 *ValueType) bool {
return st1.Type == st2.Type && st1.Unit == st2.Unit
}
+
+// locationIDMap is like a map[uint64]*Location, but provides efficiency for
+// ids that are densely numbered, which is often the case.
+type locationIDMap struct {
+ dense []*Location // indexed by id for id < len(dense)
+ sparse map[uint64]*Location // indexed by id for id >= len(dense)
+}
+
+func makeLocationIDMap(n int) locationIDMap {
+ return locationIDMap{
+ dense: make([]*Location, n),
+ sparse: map[uint64]*Location{},
+ }
+}
+
+func (lm locationIDMap) get(id uint64) *Location {
+ if id < uint64(len(lm.dense)) {
+ return lm.dense[int(id)]
+ }
+ return lm.sparse[id]
+}
+
+func (lm locationIDMap) set(id uint64, loc *Location) {
+ if id < uint64(len(lm.dense)) {
+ lm.dense[id] = loc
+ return
+ }
+ lm.sparse[id] = loc
+}
+
+// CompatibilizeSampleTypes makes profiles compatible to be compared/merged. It
+// keeps sample types that appear in all profiles only and drops/reorders the
+// sample types as necessary.
+//
+// In the case of sample types order is not the same for given profiles the
+// order is derived from the first profile.
+//
+// Profiles are modified in-place.
+//
+// It returns an error if the sample type's intersection is empty.
+func CompatibilizeSampleTypes(ps []*Profile) error {
+ sTypes := commonSampleTypes(ps)
+ if len(sTypes) == 0 {
+ return fmt.Errorf("profiles have empty common sample type list")
+ }
+ for _, p := range ps {
+ if err := compatibilizeSampleTypes(p, sTypes); err != nil {
+ return err
+ }
+ }
+ return nil
+}
+
+// commonSampleTypes returns sample types that appear in all profiles in the
+// order how they ordered in the first profile.
+func commonSampleTypes(ps []*Profile) []string {
+ if len(ps) == 0 {
+ return nil
+ }
+ sTypes := map[string]int{}
+ for _, p := range ps {
+ for _, st := range p.SampleType {
+ sTypes[st.Type]++
+ }
+ }
+ var res []string
+ for _, st := range ps[0].SampleType {
+ if sTypes[st.Type] == len(ps) {
+ res = append(res, st.Type)
+ }
+ }
+ return res
+}
+
+// compatibilizeSampleTypes drops sample types that are not present in sTypes
+// list and reorder them if needed.
+//
+// It sets DefaultSampleType to sType[0] if it is not in sType list.
+//
+// It assumes that all sample types from the sTypes list are present in the
+// given profile otherwise it returns an error.
+func compatibilizeSampleTypes(p *Profile, sTypes []string) error {
+ if len(sTypes) == 0 {
+ return fmt.Errorf("sample type list is empty")
+ }
+ defaultSampleType := sTypes[0]
+ reMap, needToModify := make([]int, len(sTypes)), false
+ for i, st := range sTypes {
+ if st == p.DefaultSampleType {
+ defaultSampleType = p.DefaultSampleType
+ }
+ idx := searchValueType(p.SampleType, st)
+ if idx < 0 {
+ return fmt.Errorf("%q sample type is not found in profile", st)
+ }
+ reMap[i] = idx
+ if idx != i {
+ needToModify = true
+ }
+ }
+ if !needToModify && len(sTypes) == len(p.SampleType) {
+ return nil
+ }
+ p.DefaultSampleType = defaultSampleType
+ oldSampleTypes := p.SampleType
+ p.SampleType = make([]*ValueType, len(sTypes))
+ for i, idx := range reMap {
+ p.SampleType[i] = oldSampleTypes[idx]
+ }
+ values := make([]int64, len(sTypes))
+ for _, s := range p.Sample {
+ for i, idx := range reMap {
+ values[i] = s.Value[idx]
+ }
+ s.Value = s.Value[:len(values)]
+ copy(s.Value, values)
+ }
+ return nil
+}
+
+func searchValueType(vts []*ValueType, s string) int {
+ for i, vt := range vts {
+ if vt.Type == s {
+ return i
+ }
+ }
+ return -1
+}
diff --git a/vendor/github.com/google/pprof/profile/profile.go b/vendor/github.com/google/pprof/profile/profile.go
index 2590c8d..f47a243 100644
--- a/vendor/github.com/google/pprof/profile/profile.go
+++ b/vendor/github.com/google/pprof/profile/profile.go
@@ -21,7 +21,6 @@ import (
"compress/gzip"
"fmt"
"io"
- "io/ioutil"
"math"
"path/filepath"
"regexp"
@@ -40,6 +39,7 @@ type Profile struct {
Location []*Location
Function []*Function
Comments []string
+ DocURL string
DropFrames string
KeepFrames string
@@ -54,6 +54,7 @@ type Profile struct {
encodeMu sync.Mutex
commentX []int64
+ docURLX int64
dropFramesX int64
keepFramesX int64
stringTable []string
@@ -73,9 +74,23 @@ type ValueType struct {
type Sample struct {
Location []*Location
Value []int64
- Label map[string][]string
+ // Label is a per-label-key map to values for string labels.
+ //
+ // In general, having multiple values for the given label key is strongly
+ // discouraged - see docs for the sample label field in profile.proto. The
+ // main reason this unlikely state is tracked here is to make the
+ // decoding->encoding roundtrip not lossy. But we expect that the value
+ // slices present in this map are always of length 1.
+ Label map[string][]string
+ // NumLabel is a per-label-key map to values for numeric labels. See a note
+ // above on handling multiple values for a label.
NumLabel map[string][]int64
- NumUnit map[string][]string
+ // NumUnit is a per-label-key map to the unit names of corresponding numeric
+ // label values. The unit info may be missing even if the label is in
+ // NumLabel, see the docs in profile.proto for details. When the value is
+ // slice is present and not nil, its length must be equal to the length of
+ // the corresponding value slice in NumLabel.
+ NumUnit map[string][]string
locationIDX []uint64
labelX []label
@@ -106,6 +121,15 @@ type Mapping struct {
fileX int64
buildIDX int64
+
+ // Name of the kernel relocation symbol ("_text" or "_stext"), extracted from File.
+ // For linux kernel mappings generated by some tools, correct symbolization depends
+ // on knowing which of the two possible relocation symbols was used for `Start`.
+ // This is given to us as a suffix in `File` (e.g. "[kernel.kallsyms]_stext").
+ //
+ // Note, this public field is not persisted in the proto. For the purposes of
+ // copying / merging / hashing profiles, it is considered subsumed by `File`.
+ KernelRelocationSymbol string
}
// Location corresponds to Profile.Location
@@ -123,6 +147,7 @@ type Location struct {
type Line struct {
Function *Function
Line int64
+ Column int64
functionIDX uint64
}
@@ -144,7 +169,7 @@ type Function struct {
// may be a gzip-compressed encoded protobuf or one of many legacy
// profile formats which may be unsupported in the future.
func Parse(r io.Reader) (*Profile, error) {
- data, err := ioutil.ReadAll(r)
+ data, err := io.ReadAll(r)
if err != nil {
return nil, err
}
@@ -159,7 +184,7 @@ func ParseData(data []byte) (*Profile, error) {
if len(data) >= 2 && data[0] == 0x1f && data[1] == 0x8b {
gz, err := gzip.NewReader(bytes.NewBuffer(data))
if err == nil {
- data, err = ioutil.ReadAll(gz)
+ data, err = io.ReadAll(gz)
}
if err != nil {
return nil, fmt.Errorf("decompressing profile: %v", err)
@@ -414,7 +439,7 @@ func (p *Profile) CheckValid() error {
// Aggregate merges the locations in the profile into equivalence
// classes preserving the request attributes. It also updates the
// samples to point to the merged locations.
-func (p *Profile) Aggregate(inlineFrame, function, filename, linenumber, address bool) error {
+func (p *Profile) Aggregate(inlineFrame, function, filename, linenumber, columnnumber, address bool) error {
for _, m := range p.Mapping {
m.HasInlineFrames = m.HasInlineFrames && inlineFrame
m.HasFunctions = m.HasFunctions && function
@@ -436,7 +461,7 @@ func (p *Profile) Aggregate(inlineFrame, function, filename, linenumber, address
}
// Aggregate locations
- if !inlineFrame || !address || !linenumber {
+ if !inlineFrame || !address || !linenumber || !columnnumber {
for _, l := range p.Location {
if !inlineFrame && len(l.Line) > 1 {
l.Line = l.Line[len(l.Line)-1:]
@@ -444,6 +469,12 @@ func (p *Profile) Aggregate(inlineFrame, function, filename, linenumber, address
if !linenumber {
for i := range l.Line {
l.Line[i].Line = 0
+ l.Line[i].Column = 0
+ }
+ }
+ if !columnnumber {
+ for i := range l.Line {
+ l.Line[i].Column = 0
}
}
if !address {
@@ -526,6 +557,9 @@ func (p *Profile) String() string {
for _, c := range p.Comments {
ss = append(ss, "Comment: "+c)
}
+ if url := p.DocURL; url != "" {
+ ss = append(ss, fmt.Sprintf("Doc: %s", url))
+ }
if pt := p.PeriodType; pt != nil {
ss = append(ss, fmt.Sprintf("PeriodType: %s %s", pt.Type, pt.Unit))
}
@@ -605,10 +639,11 @@ func (l *Location) string() string {
for li := range l.Line {
lnStr := "??"
if fn := l.Line[li].Function; fn != nil {
- lnStr = fmt.Sprintf("%s %s:%d s=%d",
+ lnStr = fmt.Sprintf("%s %s:%d:%d s=%d",
fn.Name,
fn.Filename,
l.Line[li].Line,
+ l.Line[li].Column,
fn.StartLine)
if fn.Name != fn.SystemName {
lnStr = lnStr + "(" + fn.SystemName + ")"
@@ -707,6 +742,35 @@ func (s *Sample) HasLabel(key, value string) bool {
return false
}
+// SetNumLabel sets the specified key to the specified value for all samples in the
+// profile. "unit" is a slice that describes the units that each corresponding member
+// of "values" is measured in (e.g. bytes or seconds). If there is no relevant
+// unit for a given value, that member of "unit" should be the empty string.
+// "unit" must either have the same length as "value", or be nil.
+func (p *Profile) SetNumLabel(key string, value []int64, unit []string) {
+ for _, sample := range p.Sample {
+ if sample.NumLabel == nil {
+ sample.NumLabel = map[string][]int64{key: value}
+ } else {
+ sample.NumLabel[key] = value
+ }
+ if sample.NumUnit == nil {
+ sample.NumUnit = map[string][]string{key: unit}
+ } else {
+ sample.NumUnit[key] = unit
+ }
+ }
+}
+
+// RemoveNumLabel removes all numerical labels associated with the specified key for all
+// samples in the profile.
+func (p *Profile) RemoveNumLabel(key string) {
+ for _, sample := range p.Sample {
+ delete(sample.NumLabel, key)
+ delete(sample.NumUnit, key)
+ }
+}
+
// DiffBaseSample returns true if a sample belongs to the diff base and false
// otherwise.
func (s *Sample) DiffBaseSample() bool {
@@ -785,10 +849,10 @@ func (p *Profile) HasFileLines() bool {
// Unsymbolizable returns true if a mapping points to a binary for which
// locations can't be symbolized in principle, at least now. Examples are
-// "[vdso]", [vsyscall]" and some others, see the code.
+// "[vdso]", "[vsyscall]" and some others, see the code.
func (m *Mapping) Unsymbolizable() bool {
name := filepath.Base(m.File)
- return strings.HasPrefix(name, "[") || strings.HasPrefix(name, "linux-vdso") || strings.HasPrefix(m.File, "/dev/dri/")
+ return strings.HasPrefix(name, "[") || strings.HasPrefix(name, "linux-vdso") || strings.HasPrefix(m.File, "/dev/dri/") || m.File == "//anon"
}
// Copy makes a fully independent copy of a profile.
diff --git a/vendor/github.com/google/pprof/profile/proto.go b/vendor/github.com/google/pprof/profile/proto.go
index 539ad3a..a15696b 100644
--- a/vendor/github.com/google/pprof/profile/proto.go
+++ b/vendor/github.com/google/pprof/profile/proto.go
@@ -39,11 +39,12 @@ import (
)
type buffer struct {
- field int // field tag
- typ int // proto wire type code for field
- u64 uint64
- data []byte
- tmp [16]byte
+ field int // field tag
+ typ int // proto wire type code for field
+ u64 uint64
+ data []byte
+ tmp [16]byte
+ tmpLines []Line // temporary storage used while decoding "repeated Line".
}
type decoder func(*buffer, message) error
@@ -286,7 +287,6 @@ func decodeInt64s(b *buffer, x *[]int64) error {
if b.typ == 2 {
// Packed encoding
data := b.data
- tmp := make([]int64, 0, len(data)) // Maximally sized
for len(data) > 0 {
var u uint64
var err error
@@ -294,9 +294,8 @@ func decodeInt64s(b *buffer, x *[]int64) error {
if u, data, err = decodeVarint(data); err != nil {
return err
}
- tmp = append(tmp, int64(u))
+ *x = append(*x, int64(u))
}
- *x = append(*x, tmp...)
return nil
}
var i int64
@@ -319,7 +318,6 @@ func decodeUint64s(b *buffer, x *[]uint64) error {
if b.typ == 2 {
data := b.data
// Packed encoding
- tmp := make([]uint64, 0, len(data)) // Maximally sized
for len(data) > 0 {
var u uint64
var err error
@@ -327,9 +325,8 @@ func decodeUint64s(b *buffer, x *[]uint64) error {
if u, data, err = decodeVarint(data); err != nil {
return err
}
- tmp = append(tmp, u)
+ *x = append(*x, u)
}
- *x = append(*x, tmp...)
return nil
}
var u uint64
diff --git a/vendor/github.com/google/pprof/profile/prune.go b/vendor/github.com/google/pprof/profile/prune.go
index 02d21a8..b2f9fd5 100644
--- a/vendor/github.com/google/pprof/profile/prune.go
+++ b/vendor/github.com/google/pprof/profile/prune.go
@@ -62,15 +62,31 @@ func (p *Profile) Prune(dropRx, keepRx *regexp.Regexp) {
prune := make(map[uint64]bool)
pruneBeneath := make(map[uint64]bool)
+ // simplifyFunc can be expensive, so cache results.
+ // Note that the same function name can be encountered many times due
+ // different lines and addresses in the same function.
+ pruneCache := map[string]bool{} // Map from function to whether or not to prune
+ pruneFromHere := func(s string) bool {
+ if r, ok := pruneCache[s]; ok {
+ return r
+ }
+ funcName := simplifyFunc(s)
+ if dropRx.MatchString(funcName) {
+ if keepRx == nil || !keepRx.MatchString(funcName) {
+ pruneCache[s] = true
+ return true
+ }
+ }
+ pruneCache[s] = false
+ return false
+ }
+
for _, loc := range p.Location {
var i int
for i = len(loc.Line) - 1; i >= 0; i-- {
if fn := loc.Line[i].Function; fn != nil && fn.Name != "" {
- funcName := simplifyFunc(fn.Name)
- if dropRx.MatchString(funcName) {
- if keepRx == nil || !keepRx.MatchString(funcName) {
- break
- }
+ if pruneFromHere(fn.Name) {
+ break
}
}
}
diff --git a/vendor/github.com/google/uuid/CHANGELOG.md b/vendor/github.com/google/uuid/CHANGELOG.md
index 2bd7866..7ec5ac7 100644
--- a/vendor/github.com/google/uuid/CHANGELOG.md
+++ b/vendor/github.com/google/uuid/CHANGELOG.md
@@ -1,5 +1,36 @@
# Changelog
+## [1.6.0](https://github.com/google/uuid/compare/v1.5.0...v1.6.0) (2024-01-16)
+
+
+### Features
+
+* add Max UUID constant ([#149](https://github.com/google/uuid/issues/149)) ([c58770e](https://github.com/google/uuid/commit/c58770eb495f55fe2ced6284f93c5158a62e53e3))
+
+
+### Bug Fixes
+
+* fix typo in version 7 uuid documentation ([#153](https://github.com/google/uuid/issues/153)) ([016b199](https://github.com/google/uuid/commit/016b199544692f745ffc8867b914129ecb47ef06))
+* Monotonicity in UUIDv7 ([#150](https://github.com/google/uuid/issues/150)) ([a2b2b32](https://github.com/google/uuid/commit/a2b2b32373ff0b1a312b7fdf6d38a977099698a6))
+
+## [1.5.0](https://github.com/google/uuid/compare/v1.4.0...v1.5.0) (2023-12-12)
+
+
+### Features
+
+* Validate UUID without creating new UUID ([#141](https://github.com/google/uuid/issues/141)) ([9ee7366](https://github.com/google/uuid/commit/9ee7366e66c9ad96bab89139418a713dc584ae29))
+
+## [1.4.0](https://github.com/google/uuid/compare/v1.3.1...v1.4.0) (2023-10-26)
+
+
+### Features
+
+* UUIDs slice type with Strings() convenience method ([#133](https://github.com/google/uuid/issues/133)) ([cd5fbbd](https://github.com/google/uuid/commit/cd5fbbdd02f3e3467ac18940e07e062be1f864b4))
+
+### Fixes
+
+* Clarify that Parse's job is to parse but not necessarily validate strings. (Documents current behavior)
+
## [1.3.1](https://github.com/google/uuid/compare/v1.3.0...v1.3.1) (2023-08-18)
diff --git a/vendor/github.com/google/uuid/CONTRIBUTING.md b/vendor/github.com/google/uuid/CONTRIBUTING.md
index 5566888..a502fdc 100644
--- a/vendor/github.com/google/uuid/CONTRIBUTING.md
+++ b/vendor/github.com/google/uuid/CONTRIBUTING.md
@@ -11,7 +11,7 @@ please explain why in the pull request description.
### Releasing
-Commits that would precipitate a SemVer change, as desrcibed in the Conventional
+Commits that would precipitate a SemVer change, as described in the Conventional
Commits Specification, will trigger [`release-please`](https://github.com/google-github-actions/release-please-action)
to create a release candidate pull request. Once submitted, `release-please`
will create a release.
diff --git a/vendor/github.com/google/uuid/hash.go b/vendor/github.com/google/uuid/hash.go
index b404f4b..dc60082 100644
--- a/vendor/github.com/google/uuid/hash.go
+++ b/vendor/github.com/google/uuid/hash.go
@@ -17,6 +17,12 @@ var (
NameSpaceOID = Must(Parse("6ba7b812-9dad-11d1-80b4-00c04fd430c8"))
NameSpaceX500 = Must(Parse("6ba7b814-9dad-11d1-80b4-00c04fd430c8"))
Nil UUID // empty UUID, all zeros
+
+ // The Max UUID is special form of UUID that is specified to have all 128 bits set to 1.
+ Max = UUID{
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ }
)
// NewHash returns a new UUID derived from the hash of space concatenated with
diff --git a/vendor/github.com/google/uuid/time.go b/vendor/github.com/google/uuid/time.go
index e6ef06c..c351129 100644
--- a/vendor/github.com/google/uuid/time.go
+++ b/vendor/github.com/google/uuid/time.go
@@ -108,12 +108,23 @@ func setClockSequence(seq int) {
}
// Time returns the time in 100s of nanoseconds since 15 Oct 1582 encoded in
-// uuid. The time is only defined for version 1 and 2 UUIDs.
+// uuid. The time is only defined for version 1, 2, 6 and 7 UUIDs.
func (uuid UUID) Time() Time {
- time := int64(binary.BigEndian.Uint32(uuid[0:4]))
- time |= int64(binary.BigEndian.Uint16(uuid[4:6])) << 32
- time |= int64(binary.BigEndian.Uint16(uuid[6:8])&0xfff) << 48
- return Time(time)
+ var t Time
+ switch uuid.Version() {
+ case 6:
+ time := binary.BigEndian.Uint64(uuid[:8]) // Ignore uuid[6] version b0110
+ t = Time(time)
+ case 7:
+ time := binary.BigEndian.Uint64(uuid[:8])
+ t = Time((time>>16)*10000 + g1582ns100)
+ default: // forward compatible
+ time := int64(binary.BigEndian.Uint32(uuid[0:4]))
+ time |= int64(binary.BigEndian.Uint16(uuid[4:6])) << 32
+ time |= int64(binary.BigEndian.Uint16(uuid[6:8])&0xfff) << 48
+ t = Time(time)
+ }
+ return t
}
// ClockSequence returns the clock sequence encoded in uuid.
diff --git a/vendor/github.com/google/uuid/uuid.go b/vendor/github.com/google/uuid/uuid.go
index a56138c..5232b48 100644
--- a/vendor/github.com/google/uuid/uuid.go
+++ b/vendor/github.com/google/uuid/uuid.go
@@ -56,11 +56,15 @@ func IsInvalidLengthError(err error) bool {
return ok
}
-// Parse decodes s into a UUID or returns an error. Both the standard UUID
-// forms of xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx and
-// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx are decoded as well as the
-// Microsoft encoding {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} and the raw hex
-// encoding: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.
+// Parse decodes s into a UUID or returns an error if it cannot be parsed. Both
+// the standard UUID forms defined in RFC 4122
+// (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx and
+// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx) are decoded. In addition,
+// Parse accepts non-standard strings such as the raw hex encoding
+// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx and 38 byte "Microsoft style" encodings,
+// e.g. {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}. Only the middle 36 bytes are
+// examined in the latter case. Parse should not be used to validate strings as
+// it parses non-standard encodings as indicated above.
func Parse(s string) (UUID, error) {
var uuid UUID
switch len(s) {
@@ -182,6 +186,59 @@ func Must(uuid UUID, err error) UUID {
return uuid
}
+// Validate returns an error if s is not a properly formatted UUID in one of the following formats:
+// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+// {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}
+// It returns an error if the format is invalid, otherwise nil.
+func Validate(s string) error {
+ switch len(s) {
+ // Standard UUID format
+ case 36:
+
+ // UUID with "urn:uuid:" prefix
+ case 36 + 9:
+ if !strings.EqualFold(s[:9], "urn:uuid:") {
+ return fmt.Errorf("invalid urn prefix: %q", s[:9])
+ }
+ s = s[9:]
+
+ // UUID enclosed in braces
+ case 36 + 2:
+ if s[0] != '{' || s[len(s)-1] != '}' {
+ return fmt.Errorf("invalid bracketed UUID format")
+ }
+ s = s[1 : len(s)-1]
+
+ // UUID without hyphens
+ case 32:
+ for i := 0; i < len(s); i += 2 {
+ _, ok := xtob(s[i], s[i+1])
+ if !ok {
+ return errors.New("invalid UUID format")
+ }
+ }
+
+ default:
+ return invalidLengthError{len(s)}
+ }
+
+ // Check for standard UUID format
+ if len(s) == 36 {
+ if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' {
+ return errors.New("invalid UUID format")
+ }
+ for _, x := range []int{0, 2, 4, 6, 9, 11, 14, 16, 19, 21, 24, 26, 28, 30, 32, 34} {
+ if _, ok := xtob(s[x], s[x+1]); !ok {
+ return errors.New("invalid UUID format")
+ }
+ }
+ }
+
+ return nil
+}
+
// String returns the string form of uuid, xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
// , or "" if uuid is invalid.
func (uuid UUID) String() string {
@@ -294,3 +351,15 @@ func DisableRandPool() {
poolMu.Lock()
poolPos = randPoolSize
}
+
+// UUIDs is a slice of UUID types.
+type UUIDs []UUID
+
+// Strings returns a string slice containing the string form of each UUID in uuids.
+func (uuids UUIDs) Strings() []string {
+ var uuidStrs = make([]string, len(uuids))
+ for i, uuid := range uuids {
+ uuidStrs[i] = uuid.String()
+ }
+ return uuidStrs
+}
diff --git a/vendor/github.com/google/uuid/version6.go b/vendor/github.com/google/uuid/version6.go
new file mode 100644
index 0000000..339a959
--- /dev/null
+++ b/vendor/github.com/google/uuid/version6.go
@@ -0,0 +1,56 @@
+// Copyright 2023 Google Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import "encoding/binary"
+
+// UUID version 6 is a field-compatible version of UUIDv1, reordered for improved DB locality.
+// It is expected that UUIDv6 will primarily be used in contexts where there are existing v1 UUIDs.
+// Systems that do not involve legacy UUIDv1 SHOULD consider using UUIDv7 instead.
+//
+// see https://datatracker.ietf.org/doc/html/draft-peabody-dispatch-new-uuid-format-03#uuidv6
+//
+// NewV6 returns a Version 6 UUID based on the current NodeID and clock
+// sequence, and the current time. If the NodeID has not been set by SetNodeID
+// or SetNodeInterface then it will be set automatically. If the NodeID cannot
+// be set NewV6 set NodeID is random bits automatically . If clock sequence has not been set by
+// SetClockSequence then it will be set automatically. If GetTime fails to
+// return the current NewV6 returns Nil and an error.
+func NewV6() (UUID, error) {
+ var uuid UUID
+ now, seq, err := GetTime()
+ if err != nil {
+ return uuid, err
+ }
+
+ /*
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | time_high |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | time_mid | time_low_and_version |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ |clk_seq_hi_res | clk_seq_low | node (0-1) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | node (2-5) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+ binary.BigEndian.PutUint64(uuid[0:], uint64(now))
+ binary.BigEndian.PutUint16(uuid[8:], seq)
+
+ uuid[6] = 0x60 | (uuid[6] & 0x0F)
+ uuid[8] = 0x80 | (uuid[8] & 0x3F)
+
+ nodeMu.Lock()
+ if nodeID == zeroID {
+ setNodeInterface("")
+ }
+ copy(uuid[10:], nodeID[:])
+ nodeMu.Unlock()
+
+ return uuid, nil
+}
diff --git a/vendor/github.com/google/uuid/version7.go b/vendor/github.com/google/uuid/version7.go
new file mode 100644
index 0000000..3167b64
--- /dev/null
+++ b/vendor/github.com/google/uuid/version7.go
@@ -0,0 +1,104 @@
+// Copyright 2023 Google Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+ "io"
+)
+
+// UUID version 7 features a time-ordered value field derived from the widely
+// implemented and well known Unix Epoch timestamp source,
+// the number of milliseconds seconds since midnight 1 Jan 1970 UTC, leap seconds excluded.
+// As well as improved entropy characteristics over versions 1 or 6.
+//
+// see https://datatracker.ietf.org/doc/html/draft-peabody-dispatch-new-uuid-format-03#name-uuid-version-7
+//
+// Implementations SHOULD utilize UUID version 7 over UUID version 1 and 6 if possible.
+//
+// NewV7 returns a Version 7 UUID based on the current time(Unix Epoch).
+// Uses the randomness pool if it was enabled with EnableRandPool.
+// On error, NewV7 returns Nil and an error
+func NewV7() (UUID, error) {
+ uuid, err := NewRandom()
+ if err != nil {
+ return uuid, err
+ }
+ makeV7(uuid[:])
+ return uuid, nil
+}
+
+// NewV7FromReader returns a Version 7 UUID based on the current time(Unix Epoch).
+// it use NewRandomFromReader fill random bits.
+// On error, NewV7FromReader returns Nil and an error.
+func NewV7FromReader(r io.Reader) (UUID, error) {
+ uuid, err := NewRandomFromReader(r)
+ if err != nil {
+ return uuid, err
+ }
+
+ makeV7(uuid[:])
+ return uuid, nil
+}
+
+// makeV7 fill 48 bits time (uuid[0] - uuid[5]), set version b0111 (uuid[6])
+// uuid[8] already has the right version number (Variant is 10)
+// see function NewV7 and NewV7FromReader
+func makeV7(uuid []byte) {
+ /*
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | unix_ts_ms |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | unix_ts_ms | ver | rand_a (12 bit seq) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ |var| rand_b |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | rand_b |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+ _ = uuid[15] // bounds check
+
+ t, s := getV7Time()
+
+ uuid[0] = byte(t >> 40)
+ uuid[1] = byte(t >> 32)
+ uuid[2] = byte(t >> 24)
+ uuid[3] = byte(t >> 16)
+ uuid[4] = byte(t >> 8)
+ uuid[5] = byte(t)
+
+ uuid[6] = 0x70 | (0x0F & byte(s>>8))
+ uuid[7] = byte(s)
+}
+
+// lastV7time is the last time we returned stored as:
+//
+// 52 bits of time in milliseconds since epoch
+// 12 bits of (fractional nanoseconds) >> 8
+var lastV7time int64
+
+const nanoPerMilli = 1000000
+
+// getV7Time returns the time in milliseconds and nanoseconds / 256.
+// The returned (milli << 12 + seq) is guarenteed to be greater than
+// (milli << 12 + seq) returned by any previous call to getV7Time.
+func getV7Time() (milli, seq int64) {
+ timeMu.Lock()
+ defer timeMu.Unlock()
+
+ nano := timeNow().UnixNano()
+ milli = nano / nanoPerMilli
+ // Sequence number is between 0 and 3906 (nanoPerMilli>>8)
+ seq = (nano - milli*nanoPerMilli) >> 8
+ now := milli<<12 + seq
+ if now <= lastV7time {
+ now = lastV7time + 1
+ milli = now >> 12
+ seq = now & 0xfff
+ }
+ lastV7time = now
+ return milli, seq
+}