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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.
//
#ifndef COMPILER_PREPROCESSOR_TOKENIZER_H_
#define COMPILER_PREPROCESSOR_TOKENIZER_H_
#include "common/angleutils.h"
#include "compiler/preprocessor/Input.h"
#include "compiler/preprocessor/Lexer.h"
namespace angle
{
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;
};
Tokenizer(Diagnostics *diagnostics);
~Tokenizer() override;
bool init(size_t count, const char *const string[], const int length[]);
void setFileNumber(int file);
void setLineNumber(int line);
void setMaxTokenSize(size_t maxTokenSize);
void lex(Token *token) override;
private:
bool initScanner();
void destroyScanner();
void *mHandle; // Scanner handle.
Context mContext; // Scanner extra.
size_t mMaxTokenSize; // Maximum token size
};
} // namespace pp
} // namespace angle
#endif // COMPILER_PREPROCESSOR_TOKENIZER_H_
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