NewComprehension creates a new one-variable comprehension instruction. - iterRange represents the expression that resolves to a list or map where the

NewEvalState returns an EvalState instanced used to observe the intermediate evaluations of an expression.

NewIdent creates an identifier Expr value.

NewMap creates a CreateStruct instruction for a map where the map is comprised of the optional set of key, value entries.

NewMemberCall creates a function call Expr value for a receiver-style function.

NewRefValList returns a traits.Lister with ref.Val elements. This type specialization is used with list literals within CEL expressions.

NewSelect creates an Expr representing a field selection on an operand expression.

NewStringStringMap returns a specialized traits.Mapper with string keys and values.

OffsetRanges returns a map of expression id to OffsetRange values where the range indicates either: the start and end position in the input stream whe

ReflectType returns the backing Go reflect.Type associated with the struct (or nil if non-reflected).

RegisterMessage registers a protocol buffer message and its dependencies.

RelativeAttribute creates an attribute whose value is a qualification of a dynamic computation rather than a static variable reference.

ResidualAst takes an Ast and its EvalDetails to produce a new Ast which only contains the attribute references which are unknown. Residual expression

SetKindCase replaces the contents of the current expression with the contents of the other. The SetKindCase takes ownership of any expression instanc

StringsVersion configures the version of the string library. The version limits which functions are available. Only functions introduced below or equ

Type returns the type constructed.

ValidateHomogeneousAggregateLiterals checks that all list and map literals entries have the same types, i.e. no mixed list element types or mixed map

eval will evaluate a given program `prg` against a set of variables `vars` and return the output, eval details (optional), or error that results from

AddExtensions appends a set of extensions to the config.

AddImports appends a set of imports to the config.

AddIncludedFunctions allow-lists one or more functions from the subset. Note, this option will override any excluded functions.

AstToCheckedExpr converts an Ast to an protobuf CheckedExpr value. If the Ast.IsChecked() returns false, this conversion method will return an error.

AsyncBinding provides the implementation of an asynchronous overload. The provided function is called in its own goroutine with the provided context.

CollectMetadata records the source position information of a given YAML node, and returns the id associated with the source metadata which is returned

ConditionalAttribute creates an attribute with two Attribute branches, where the Attribute that is resolved depends on the boolean evaluation of the i

ContextProtoVars uses the fields of the input proto.Messages as top-level variables within an Activation. Consider using with `DeclareContextProto` t

CopyASTAndMetadata copies the input AST and propagates the macro metadata into the AST being optimized.

CustomTypeAdapter swaps the default types.Adapter implementation with a custom one. Note: This option must be specified before the Types and TypeDesc

Encoders returns a cel.EnvOption to configure extended functions for string, byte, and object encodings. # Base64.Decode Decodes base64-encoded stri

Equal returns whether the two ref.Value are heterogeneously equivalent.

EvalStateObserver provides an observer which records the value associated with the given expression id. EvalState must be provided to the observer.

FindType looks up the Type given a qualified typeName. Returns false if not found.

GetE returns the e rule contexts.

GetFrom returns the accessor method associated with the field on the proto generated struct. If the field is not set, the proto default value is retu

GetStartLocation calculates the human-readable 1-based line and 0-based column of the first character of the expression node at the id.

IsChecked returns whether the Ast value has been successfully type-checked.

IsList returns true if the field is a repeated value. This method will also return true for map values, so check whether the field is also a map.

IsMap returns true if the field is of map type.

IsOptional specifies whether the qualifier is optional. Instead of a direct qualification, an optional qualifier will be resolved via QualifyIfPresent

IsSet returns true if the field is defined and set to a non-default value. The method will return false if defined and not set, and an error if the fi

JSONName returns the JSON name of the field, if present.

LT mimics (*antlr.InputStream).LT.

Lists returns a cel.EnvOption to configure extended functions for list manipulation. As a general note, all indices are zero-based. # Distinct Intro

MacroCalls returns the map of macro calls currently in the context.

Math returns a cel.EnvOption to configure namespaced math helper macros and functions. Note, all macros use the 'math' namespace; however, at the tim

Negate returns the complement of the current value.

NewAccuIdent creates an Expr value representing an accumulator identifier within a comprehension.

NewActivation returns an activation based on a map-based binding where the map keys are expected to be qualified names used with ResolveName calls. T

NewBuffer returns an efficient implementation of Buffer for the given text based on the ranges of the encoded code points contained within.

NewComprehension creates an Expr value representing a one-variable comprehension over a value range.

NewError associates an error message with a given expression id.

NewExecutionFrame creates a new execution frame from the pool.

NewExtension creates a serializable Extension from a name and version string.

NewFeature creates a new feature flag with a boolean enablement flag.

NewMapEntry creates a MapEntry with a given key, value, and a flag indicating whether the key is optionally set.

NewMemberOverload returns a new serializable representation of a member (receiver) overload.

NewOverload returns a new serializable representation of a global overload.

NewPresenceTest creates an Expr representing a field presence test on an operand expression.

NewUnspecifiedExpr creates an empty expression node.

OverloadExamples configures example expressions for the overload.

PlanProgram generates an evaluable instance of the AST in the go-native representation within the environment (Env).

ProtoToExpr converts a protobuf Expr value to an ast.Expr value.

RangeMap iterates over the map and calls the provided function for each key-value pair. If the function returns false, the iteration will stop.

Receive implements traits.Receiver.Receive.

ReceiverMacro creates a Macro for a receiver function matching the specified arg count.

RegisterType registers a type value with the provider which ensures the provider is aware of how to map the type to an identifier. If a type is provi

ResultType indicates the output type from calling the function.

SetContextVariable configures the ContextVariable for this configuration.

SetMacroCall sets the macro call metadata for the given macro id within the tracked source info metadata.

SetOffsetRange sets the OffsetRange for the given expression id.

SetStdLib configures the LibrarySubset for the standard library.

StdLibSubset configures the standard library to use a subset of its functions and macros. Since the StdLib is a singleton library, only the first ins

StringSource converts a string and location description to a model.Source.

ToConfig converts the internal configuration of an ASTValidator into an env.Validator instance which minimally must include the validator name, but ma

Functions to assist with CEL execution. compile will parse and check an expression `expr` against a given environment `env` and determine whether the