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//
// Copyright (c) 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.
//
#ifndef COMPILER_PREPROCESSOR_TOKENIZER_H_
#define COMPILER_PREPROCESSOR_TOKENIZER_H_
#include "Input.h"
#include "Lexer.h"
#include "pp_utils.h"
#include <algorithm>
namespace pp
{
class Diagnostics;
class Tokenizer : public Lexer
{
public:
struct Context
{
Diagnostics* diagnostics;
Input input;
// The location where yytext points to. Token location should track
// scanLoc instead of Input::mReadLoc because they may not be the same
// if text is buffered up in the scanner input buffer.
Input::Location scanLoc;
bool leadingSpace;
bool lineStart;
};
static const size_t kMaxTokenLength;
Tokenizer(Diagnostics* diagnostics);
~Tokenizer();
bool init(int count, const char* const string[], const int length[]);
void setFileNumber(int file);
void setLineNumber(int line);
virtual void lex(Token* token);
private:
PP_DISALLOW_COPY_AND_ASSIGN(Tokenizer);
bool initScanner();
void destroyScanner();
void* mHandle; // Scanner handle.
Context mContext; // Scanner extra.
};
} // namespace pp
#endif // COMPILER_PREPROCESSOR_TOKENIZER_H_