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// Copyright 2012 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <vector>
#include "compiler/preprocessor/Lexer.h"
#include "compiler/preprocessor/Macro.h"
#include "compiler/preprocessor/Preprocessor.h"
namespace angle
namespace pp
class Diagnostics;
struct SourceLocation;
class MacroExpander : public Lexer
MacroExpander(Lexer *lexer,
MacroSet *macroSet,
Diagnostics *diagnostics,
const PreprocessorSettings &settings,
bool parseDefined);
~MacroExpander() override;
void lex(Token *token) override;
void getToken(Token *token);
void ungetToken(const Token &token);
bool isNextTokenLeftParen();
bool pushMacro(std::shared_ptr<Macro> macro, const Token &identifier);
void popMacro();
bool expandMacro(const Macro &macro, const Token &identifier, std::vector<Token> *replacements);
typedef std::vector<Token> MacroArg;
bool collectMacroArgs(const Macro &macro,
const Token &identifier,
std::vector<MacroArg> *args,
SourceLocation *closingParenthesisLocation);
void replaceMacroParams(const Macro &macro,
const std::vector<MacroArg> &args,
std::vector<Token> *replacements);
struct MacroContext
bool empty() const;
const Token &get();
void unget();
std::shared_ptr<Macro> macro;
std::size_t index;
std::vector<Token> replacements;
Lexer *mLexer;
MacroSet *mMacroSet;
Diagnostics *mDiagnostics;
bool mParseDefined;
std::unique_ptr<Token> mReserveToken;
std::vector<MacroContext *> mContextStack;
size_t mTotalTokensInContexts;
PreprocessorSettings mSettings;
bool mDeferReenablingMacros;
std::vector<std::shared_ptr<Macro>> mMacrosToReenable;
class ScopedMacroReenabler;
} // namespace pp
} // namespace angle