llvm/clang/include/clang/AST/CXXRecordDeclDefinitionBits.def

//===-- CXXRecordDeclDefinitionBits.def - Class definition bits -*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file enumerates the various bitfields that we want to store on C++ class
// definitions.
//
//===----------------------------------------------------------------------===//
//
/// @file CXXRecordDeclDefinitionBits.def
///
/// In this file, each of the bitfields representing data about a C++ class
/// results in an expansion of the FIELD macro, which should be defined before
/// including this file.
///
/// The macro have three operands:
///
/// Name: The name of the field, as a member of CXXRecordDecl::DefinitionData.
///
/// BitWidth: The width of the field in bits.
///
/// MergePolicy: How to behave when the value of the field is different in
/// multiple translation units, one of:
///   NO_MERGE: It is an ODR violation if the fields do not match.
///   MERGE_OR: Merge the fields by ORing them together.

#ifndef FIELD
#error define FIELD before including this file
#endif

/// True if this class has any user-declared constructors.
FIELD( … }