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 Func

expr returns the output expression for the step.

hasField returns whether a field name has a corresponding Golang reflect.StructField

internalIsAssignable returns true if t1 is assignable to t2.

Indicate whether this is a binary or ternary operator.

isDyn indicates whether the type is dynamic in any way.

isSamePrecedence indicates whether the precedence of the input operator is the same as the precedence of the (possible) operation represented in the i

multiplyUint64NoOverflow multiplies non-negative ints. If the result is exceeds math.MaxUint64, math.MaxUint64 is returned.

newNonOptionalCompositionStep returns an output step whose output is not optional.

newOptionalCompositionStep returns an output step with an optional policy output.

numericValueEquals uses CEL equality to determine whether two number values are

programOptions generates the program options for planning. Assumes context has been planned.

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

request constructs a `google.rpc.context.AttributeContext.Request` message.

sanitize replaces all invalid runes in the given string with utf8.RuneError.

subtractInt64Checked performs subtraction with overflow detection of two int64 values. If the operation fails the error return value will be non-nil.

trackAllocatingListCall computes costs as a function of the size of the result list with a baseline cost for the call dispatch and the associated list

trackListSelfCompare computes costs as a worst-case O(n^2) operation over the input list.

valSize returns the SizeEstimate for the value if one exists.

zeroValueOf will return the strongest possible proto.Message representing the default protobuf message value of the input msg type.

AddDeclFn declares a function in the environment but doesn't register an expr with it. This allows planning to succeed, but with no value for the func

AddDeclVar declares a variable in the environment but doesn't register an expr with it. This allows planning to succeed, but with no value for the var

AddFunctionDecls adds one or more functions to the config, converting them to serializable values first. FunctionDecl inputs are expected to be well-

AddMatch addes a Match to the rule.

AddOption adds an option to the basic environment. Options are applied before evaluating any of the let statements. Returns an error if setting the op

AddVariableDecls adds one or more variables to the config, converting them to serializable values first. VariableDecl inputs are expected to be well-

Append creates a new Errors object with the current and input errors.

Arg returns the ref.Val at the given index, or an error if one occurred.

AsCELFunction converts the serializable form of the Function into CEL environment declaration.

AsCELVariable converts the serializable form of the Variable into a CEL environment declaration.

ByteSource converts a byte sequence and location description to a model.Source.

CheckedExprToAstWithSource converts a checked expression proto message to an Ast, using the provided Source as the textual contents. In general the s

ClearMacros options clears all parser macros. Clearing macros will ensure CEL expressions can only contain linear evaluation paths, as comprehensions

ClearOffsetRange removes the OffsetRange for the given expression id.

Cmd returns the normalized name for the command.

ComputeOffsetAbsolute calculates the 0-based character offset from a 1-based line and 0-based column based on the absolute line and column of the Sour

ConditionIsLiteral indicates whether the condition for the match is a literal with a given value.

ConfigFromYAML returns a config from YAML source. Adds custom parsing logic for normalizing shorthand for specifiying some fields in a YAML document

ConfigToYAML returns the config serialized to YAML Provided as a convenience wrapper around a tested YAML Marshaler.

ConvertToNative implements ref.Val.ConvertToNative.

ConvertToNative implements ref.Val.ConvertToNative.

ConvertToType implements ref.Val.ConvertToType.

ConvertToType implements ref.Val.ConvertToType.

Copy the input expression with a brand new set of identifiers.

CopySourceInfo creates a deep copy of the MacroCalls within the input SourceInfo. Copies of macro Expr values are generated using an internal default

CostLimit enables cost tracking and sets configures program evaluation to exit early with a "runtime cost limit exceeded" error if the runtime cost ex

CostObserver provides an observer that tracks runtime cost.

CostTrackerFactory configures the factory method to generate a new cost-tracker per-evaluation.

CostTrackerLimit sets the runtime limit on the evaluation cost during execution and will terminate the expression evaluation if the limit is exceeded.

CustomDecorator configures a custom interpretable decorator for the program.

DefaultTagVisitor creates a tag visitor which produces errors for any non-canonical YAML tag.

DefaultUTCTimeZone ensures that time-based operations use the UTC timezone rather than the input time's local timezone.

DelLetVar removes a variable from the evaluation context. If deleting the variable breaks a later expression, this function will return an error witho

Description provides an overview of the function's purpose. Usage examples should be included on specific overloads.

Description returns the usage documentation for the variable, if set. Good usage instructions provide information about the valid formats, ranges, si

EnableCoverage returns a TestRunnerOption which enables coverage calculation for the test run.

EnableErrorOnBadPresenceTest error generation when a presence test or optional field selection is performed on a primitive type.

EnableErrorOnBadPresenceTest enables error generation when a presence test or optional field selection is performed on a primitive type.

EnableHiddenAccumulatorName uses an accumulator variable name that is not a normally accessible identifier in source for comprehension macros. Compati

EnableHiddenAccumulatorName sets the parser to use the identifier '@result' for accumulators which is not normally accessible from CEL source.