evalResult computes the final result of the fold after all entries have been folded and accumulated.

fieldPathsForType expands the reachable fields from the given root identifier.

findFrame walks the activation hierarchy via Unwrap and Parent to locate an existing ExecutionFrame, if one exists.

findLineOffset returns the offset where the (1-indexed) line begins, or false if line doesn't exist.

getCheckerOrError gets the checker.Env or error state in a concurrency-safe manner

getErrorExprID determines which list literal argument triggered a type-disagreement for the purposes of more accurate error message reports.

int64ToUint64Checked converts an int64 to a uint64 value. If the conversion fails due to overflow the error return value will be non-nil.

internalIsAssignableList returns true if the element types at each index in the list are assignable from l1[i] to l2[i]. The list lengths must also ag

Indicates whether the expr is a complex operator, i.e., a call expression with 2 or more arguments.

isConditional returns true if the condition expression is not trivially true.

isDynOrError returns true if the input is either an Error, DYN, or well-known ANY message.

isOptional indicates whether the output step has an optional result. Individual conditional attributes are not optional; however, rules and subrules

isTypeInternal checks whether the two types are equivalent or exactly the same based on the checkTypeParamName flag.

Checks compatibility of joined types, and returns the most general common type.

keySize returns the SizeEstimate for the key if one exists.

lookupGlobalIdent finds a candidate variable name in the root scope, returning nil if the identifier is not in the global scope.

lookupLocalIdent finds the variable candidate in a local scope, returning nil if the candidate variable name is not a local variable.

matchConstantFormatStringWithListLiteralArgs matches all valid expression nodes for string format checking.

matchesRuntimeSignature indicates whether the argument types are runtime assiganble to the overload's expected arguments.

mostGeneral returns the more general of two types which are known to unify.

msgWithExtensions generates a new example message with all possible extensions set.

multiplyByFactor multiplies an integer by a cost factor float and returns the nearest integer value, rounded up.

multiplyInt64Checked performs multiplication with overflow detection of two int64 value. If the operation fails the error return value will be non-ni

nativeToValue returns the converted (ref.Val, true) of a conversion is found, otherwise (nil, false)

negateDurationChecked performs negation with overflow detection of a time.Duration. If the operation fails due to overflow the error return value wil

negateInt64Checked performs negation with overflow detection of an int64. If the operation fails the error return value will be non-nil.

newAttrResolution creates a new attribute resolution value.

newExecutionFrame creates an ExecutionFrame for the given input without a timeout context.

newFieldDescription creates a new field description from a protoreflect.FieldDescriptor.

newFolder creates or initializes a pooled folder instance.

newGroup creates a new Group with empty maps for identifiers and functions.

newIDGenerator ensures that new ids are only created the first time they are encountered.

newScopes creates a new, empty Scopes. Some operations can't be safely performed until a Group is added with Push.

newValidatorConfig initializes the validator config with default values for core CEL validators.