llvm/clang/lib/Frontend/Rewrite/RewriteMacros.cpp

//===--- RewriteMacros.cpp - Rewrite macros into their expansions ---------===//
//
// 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 code rewrites macro invocations into their expansions.  This gives you
// a macro expanded file that retains comments and #includes.
//
//===----------------------------------------------------------------------===//

#include "clang/Basic/SourceManager.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Rewrite/Core/Rewriter.h"
#include "clang/Rewrite/Frontend/Rewriters.h"
#include "llvm/ADT/RewriteBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include <cstdio>
#include <memory>

usingnamespaceclang;
RewriteBuffer;

/// isSameToken - Return true if the two specified tokens start have the same
/// content.
static bool isSameToken(Token &RawTok, Token &PPTok) { … }


/// GetNextRawTok - Return the next raw token in the stream, skipping over
/// comments if ReturnComment is false.
static const Token &GetNextRawTok(const std::vector<Token> &RawTokens,
                                  unsigned &CurTok, bool ReturnComment) { … }


/// LexRawTokensFromMainFile - Lets all the raw tokens from the main file into
/// the specified vector.
static void LexRawTokensFromMainFile(Preprocessor &PP,
                                     std::vector<Token> &RawTokens) { … }


/// RewriteMacrosInInput - Implement -rewrite-macros mode.
void clang::RewriteMacrosInInput(Preprocessor &PP, raw_ostream *OS) { … }