DeclarationIsEquivalent returns true if one variable declaration has the same name and same type as the input.

DeclareContextProto returns an option to extend CEL environment with declarations from the given context proto. Each field of the proto defines a vari

Depth indicates the depth in the expression tree. The root expression has depth 0.

DrainReady returns a strategy that waits for a short duration after the first completion to batch any other functions that complete at roughly the sam

EnableIdentifierEscapeSyntax enables identifier escaping (`) syntax for fields.

Equals returns whether two references are identical to each other.

ErrorRecoveryLookaheadTokenLimit limits the number of lexer tokens that may be considered during error recovery. Error recovery often involves lookin

Errors returns the collection of errors encountered in more granular detail.

EstimateSize returns a SizeEstimate for the given AstNode, or nil if the estimator has no estimate to provide. The size is equivalent to the result o

Extend creates a new Container with the existing settings and applies a series of ContainerOptions to further configure the new container.

ExtendedValidations collects a set of common AST validations which reduce the likelihood of runtime errors. - Validate duration and timestamp literal

ExtensionOptionFactory converts an ExtensionConfig value to a CEL environment option.

FieldMap returns a string field name to FieldDescription map.

Function returns the name of the function being called.

Functions returns a shallow copy of the Functions, keyed by function name, that have been configured in the environment.

GetArgs returns the args token list.

GetOps returns the ops token list.

GetOpt returns the opt token.

HasFeature checks whether the environment enables the given feature flag, as enumerated in options.go.

HasLibrary returns whether a specific SingletonLibrary has been configured in the environment.

InterruptCheckFrequency configures the number of iterations within a comprehension to evaluate before checking whether the function evaluation has bee

IsAssignableRuntimeType determines whether the current type is runtime assignable from the input runtimeType. At runtime, parameterized types are era

IsNonStrict returns whether the overload accepts errors and unknown values as arguments.

JSONFieldNames supports accessing protocol buffer fields by json-name. Enabling JSON field name support will create a copy of the types.Registry with

K8sTestTagHandler returns a TagVisitor which handles custom policy tags used in K8s policies. This is a helper function to be used in tests.

LineOffsets gives the character offsets at which lines occur. The zero-th entry should refer to the break between the first and second line, or EOF if

MatchSubset applies an ExprMatcher to a list of NavigableExpr values and their descendants, producing a subset of NavigableExpr values which match.

Matches returns the list of matches associated with the rule.

MaxRecursionDepth limits the maximum depth the parser will attempt to parse the expression before giving up.

MultiplyByCost multiplies by the cost and returns the product. If multiply would result in an uint64 overflow, the result is math.MaxUint64.

NativeToValue converts various "native" types to ref.Val with this specific implementation providing support for custom proto-based types. This metho

NewDispatcher returns an empty Dispatcher instance.

NewErrWithNodeID creates a new Err described by the format string and args. TODO: Audit the use of this function and standardize the error messages an

NewExtensionVersion creates a new extension version with a major, minor version.

NewFunctionReference creates a ReferenceInfo instance for a set of function overloads.

NewGlobalMacro creates a Macro for a global function with the specified arg count.

NewHierarchicalActivation takes two activations and produces a new one which prioritizes resolution in the child first and parent(s) second.

NewInlineVariableWithAlias declares a variable name to be replaced by a checked expression. If the variable occurs more than once, the provided alias

NewInterpreter builds an Interpreter from a Dispatcher and TypeProvider which will be used throughout the Eval of all Interpretable instances generate

NewIssuesWithSourceInfo returns an Issues struct from a common.Errors object with SourceInfo metatata which can be used with the `ReportErrorAtID` met

NewMap creates an Expr value representing a map literal expression

NewRefValMap returns a specialized traits.Mapper with CEL valued keys and values.

NewRuleComposer creates a rule composer which stitches together rules within a policy into a single CEL expression.

NewSelect create a field traversal Expr value.

NewStruct creates a struct literal expression with an optional set of field initializers.

NewVariableWithDoc creates a new variable declaration with usage documentation.

OffsetLocation returns the Location of the expression identifier.

Regex returns a cel.EnvOption to configure extended functions for regular expression operations. Note: all functions use the 'regex' namespace. If yo

RegexProgramSize calculates the instruction count (program plan size) of a regex pattern.

ReportErrorAtID reports an error at the given expression id.

Reset clears the previously recorded expression values.

RetryAttempts sets the maximum number of attempts (including the first one).

RetryBackoff sets the fixed backoff duration between attempts.

RetryBinding wraps a BlockingAsyncOp with a retry policy and returns an OverloadOpt.

SetDisableMacros disables the macros for the library.

SingletonBinaryBinding creates a singleton function definition to be used with all function overloads. Note, this approach works well if operand is e

Size implements the traits.Sizer interface method.

Snippet returns a line of content and whether the line was found.

TestCompiler returns a TestRunnerOption which configures the test runner with a compiler created using the set of compiler options.

TestSuite provides a reference to the test suite file (either .yaml or .textproto)

ToDisplayString returns the error set to a newline delimited string.

TriggerTests triggers tests for a CEL policy, expression or checked expression with the provided set of options. The options can be used to: - configu

Union returns a SizeEstimate that encompasses both input the SizeEstimate.

ValidateRegexProgramSizeLimit ensures that regex pattern literals do not exceed the specified regex program size limit.

Value implements ref.Val.Value.

attrQualify performs a qualification using the result of an attribute evaluation.

attrQualifyIfPresent conditionally performs the qualification of the result of attribute is present on the target object.

Reset plan if we need to recompile based on a dependency change.

estimateListCallWithDirectCost computes cost using a pre-calculated CostEstimate and a separate result size estimate.

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 te

sanitizeProtoName strips the leading '.' from the proto message name.

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()

AddExtension adds an extension record into the SourceInfo.

AddFunctions adds one or more functions to the config.