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//===- LLLexer.h - Lexer for LLVM Assembly Files ----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This class represents the Lexer for .ll files.
//
//===----------------------------------------------------------------------===//
#ifndef LIB_ASMPARSER_LLLEXER_H
#define LIB_ASMPARSER_LLLEXER_H
#include <vector>
#include <string>
#include <iosfwd>
namespace llvm {
class MemoryBuffer;
class LLLexer {
const char *CurPtr;
unsigned CurLineNo;
MemoryBuffer *CurBuf;
const char *TokStart;
std::string TheError;
public:
explicit LLLexer(MemoryBuffer *StartBuf);
~LLLexer() {}
const char *getTokStart() const { return TokStart; }
unsigned getTokLength() const { return CurPtr-TokStart; }
unsigned getLineNo() const { return CurLineNo; }
std::string getFilename() const;
int LexToken();
const std::string getError() const { return TheError; }
private:
int getNextChar();
void SkipLineComment();
int LexIdentifier();
int LexDigitOrNegative();
int LexPositive();
int LexAt();
int LexPercent();
int LexQuote();
int Lex0x();
};
} // end namespace llvm
#endif
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