ceph-csi/vendor/github.com/google/cel-go/common/stdlib/standard.go
dependabot[bot] e5d9b68d36 rebase: bump the golang-dependencies group with 1 update
Bumps the golang-dependencies group with 1 update: [golang.org/x/crypto](https://github.com/golang/crypto).


Updates `golang.org/x/crypto` from 0.16.0 to 0.17.0
- [Commits](https://github.com/golang/crypto/compare/v0.16.0...v0.17.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>
2023-12-21 13:34:39 +00:00

662 lines
29 KiB
Go

// 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"
exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
)
var (
stdFunctions []*decls.FunctionDecl
stdFnDecls []*exprpb.Decl
stdTypes []*decls.VariableDecl
stdTypeDecls []*exprpb.Decl
)
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),
}
stdTypeDecls = make([]*exprpb.Decl, 0, len(stdTypes))
for _, stdType := range stdTypes {
typeVar, err := decls.VariableDeclToExprDecl(stdType)
if err != nil {
panic(err)
}
stdTypeDecls = append(stdTypeDecls, typeVar)
}
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)),
}
stdFnDecls = make([]*exprpb.Decl, 0, len(stdFunctions))
for _, fn := range stdFunctions {
if fn.IsDeclarationDisabled() {
continue
}
ed, err := decls.FunctionDeclToExprDecl(fn)
if err != nil {
panic(err)
}
stdFnDecls = append(stdFnDecls, ed)
}
}
// Functions returns the set of standard library function declarations and definitions for CEL.
func Functions() []*decls.FunctionDecl {
return stdFunctions
}
// FunctionExprDecls returns the legacy style protobuf-typed declarations for all functions and overloads
// in the CEL standard environment.
//
// Deprecated: use Functions
func FunctionExprDecls() []*exprpb.Decl {
return stdFnDecls
}
// Types returns the set of standard library types for CEL.
func Types() []*decls.VariableDecl {
return stdTypes
}
// TypeExprDecls returns the legacy style protobuf-typed declarations for all types in the CEL
// standard environment.
//
// Deprecated: use Types
func TypeExprDecls() []*exprpb.Decl {
return stdTypeDecls
}
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)
}
}