OptionalIndicies returns the list of optional indices in the list literal.

RegisterMessage produces a `FileDescription` from a `message` and registers the message and all other definitions within the message file into the `pb

ResolveName returns a value from the activation by qualified name, or false if the name could not be found.

Args returns the normalized arguments to the function overload. For receiver-style functions, the receiver target is arg 0.

Compare compares two strings, a for actual, e for expected, and returns true or false. The comparison is done, by filtering out whitespace (i.e. space

IDs returns the list of ids with recorded values.

IsAssignableType determines whether the current type is type-check assignable from the input fromType.

Multiply returns the result of multiplying the current and input value.

NewErrors creates a new instance of the Errors type.

NewInterpretable creates an InterpretableV2 from a checked expression and an optional list of PlannerOption values.

NewOptionalType creates an abstract parameterized type instance corresponding to CEL's notion of optional.

NewSourceInfo creates a simple SourceInfo object from an input common.Source value.

NewStruct creates an Expr value representing a struct literal with a given type name and a set of field initializers.

ValOrErr either returns the existing error or creates a new one. TODO: Audit the use of this function and standardize the error messages and codes.

Bindings produces a set of function bindings, if any are defined.

Evaluate sets up a CEL evaluation using the current REPL context.

ExprToProto serializes an ast.Expr value to a protobuf Expr representation.

FunctionBinding provides the implementation of a variadic overload. The provided function is protected by a runtime type-guard which ensures runtime t

ID value corresponding to the expression node.

IsZeroValue indicates whether the object is the zero value for the type.

IterVar returns the iteration variable name. For one-variable comprehensions, the iter var refers to the element value when iterating over a list, or

MultiplyByCostFactor multiplies a SizeEstimate by a cost factor and returns the CostEstimate with the nearest integer of the result, rounded up.

NewAttributePattern produces a new mutable AttributePattern based on a variable name.

NewJSONList returns a traits.Lister based on structpb.ListValue instance.

NewLibrarySubset returns an empty library subsetting config which permits all library features.

NewList creates an Expr value representing a list literal expression with optional indices. Optional indices will typically be empty unless the CEL o

NewNullableType creates an instance of a nullable type with the provided wrapped type. Note: only primitive types are supported as wrapped types.

NoSuchOverloadErr returns a new types.Err instance with a no such overload message.

PostOrderVisit walks the expression graph and calls the visitor in post-order (bottom-up).

ReferenceMap returns the map of expression id to identifier, constant, and function references.

ResolveCandidateNames returns the candidates name of namespaced identifiers in C++ resolution order. Names which shadow other names are returned firs

SourceInfo returns the source metadata associated with the parse / type-check passes.

StdLib returns an EnvOption for the standard library of CEL functions and macros.

TypeName returns the qualified type name of the type. The type name is also used as the type's identifier name at type-check and interpretation time.

UpdateExpr updates the target expression with the updated content while preserving macro metadata. There are four scenarios during the update to cons

Validate validates a given Ast within an Environment and collects a set of potential issues. The ValidatorConfig is generated from the set of ASTVali

EnableOptionalSyntax enables syntax for optional field and index selection.

HasTrait returns whether the type has a given trait associated with it. See common/types/traits/traits.go for a list of supported traits.

IterVar2 returns the second iteration variable name. When the value is non-empty, the comprehension is a two-variable comprehension.

NewError associates an error message with a given expression id.

NewMemberCall creates an Expr value representing a member function call.

NewValidator returns a named Validator instance.

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.

SpecifierFormat returns the short text representation of the type. e.g. "map<string, int>"

TypeMap returns the map of expression ids to type-checked types. If the AST is not type-checked, the map will be empty.

AccuIdentName returns the name of the accumulator identifier.

AddIdents configures the checker with a list of variable declarations. If there are overlapping declarations, the method will error.

AsCELType converts the serializable object to a *types.Type value.

ExprTypeToType converts a protobuf CEL type representation to a CEL-native type representation.

FindStructType returns the Type give a qualified type name. For historical reasons, only struct types are expected to be returned through this method

GetMacroCall returns the original ast.Expr value for the given expression if it was generated via a macro replacement. Note, parsing options must be

GetName returns the fully qualified file path for the file.

MultilineDescription combines multiple lines into a newline separated string.

NewConfig creates an instance of a YAML serializable CEL environment configuration.

NewJSONStruct creates a traits.Mapper implementation backed by a JSON struct that has been encoded in protocol buffer form. The `adapter` argument pr

NewLocation creates a new location.

NewTypeParam describe a type-param type.

OverloadDecls returns the overload declarations in the order in which they were declared.

UnaryBinding provides the implementation of a unary overload. The provided function is protected by a runtime type-guard which ensures runtime type ag

newStandardInterpreter builds a Dispatcher and TypeProvider with support for all of the CEL builtins defined in the language definition.

CELTypeAdapter returns the `types.Adapter` configured for the environment.

Content returns the source content represented as a string. Examples contents are the single file contents, textbox field, or url parameter.

CostTracking enables cost tracking and registers a ActualCostEstimator that can optionally provide a runtime cost estimate for any function calls.

FindIdent takes a qualified identifier name and returns a ref.Val if one exists.

FoldEntry indicates the key, value pair associated with the entry. If the output is true, continue folding. Otherwise, terminate the fold.

FormatCELType formats a types.Type value to a string representation. The type formatting is identical to FormatCheckedType.

FunctionBinding provides the implementation of a variadic overload. The provided function is protected by a runtime type-guard which ensures runtime t

GetOffsetRange retrieves an OffsetRange for the given expression id if one exists.

GetOp returns the op token.

IsEquivalentType indicates whether two types are equivalent. This check ignores type parameter type names.

IsExactType indicates whether the two types are exactly the same. This check also verifies type parameter type names.

NativeTypes creates a type provider which uses reflect.Type and reflect.Value instances to produce type definitions that can be used within CEL. All

NewAccuIdent returns an accumulator identifier for use with comprehension results.

NewComprehensionTwoVar creates a new two-variable comprehension instruction. - iterRange represents the expression that resolves to a list or map whe

NewPartialActivation returns an Activation which contains a list of AttributePattern values representing field and index operations that should result

NewQualifier creates a qualifier on the target object with a given value. The 'val' may be an Attribute or any proto-supported map key type: bool, in

NewStructField creates a StructField with a given field name, value, and a flag indicating whether the field is optionally set.

NewVariable returns a serializable variable from a name and type definition

Optimize will pre-compute operations such as list and map construction and optimize call arguments to set membership tests. The set of optimizations w

Parent returns the parent expression node, if one exists.

PartialVars returns a PartialActivation which contains variables and a set of AttributePattern values that indicate variables or parts of variables wh