BuiltinAbstractEnumClass

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

BuiltinAbstractEnumClass contains the utility methods provided by abstract enum classes

HHVM provides a native implementation for this class. The PHP class definition below is not actually used at run time; it is simply provided for the typechecker and for developer reference.

Interface Synopsis

namespace HH;

abstract class BuiltinAbstractEnumClass {...}

Public Methods

• ::nameOf<TType>(EnumClass\Label<this, TType> $label): string