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Diffstat (limited to 'lib/AsmParser/LLLexer.h')
-rw-r--r-- | lib/AsmParser/LLLexer.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/AsmParser/LLLexer.h b/lib/AsmParser/LLLexer.h new file mode 100644 index 0000000000..eaf32203bb --- /dev/null +++ b/lib/AsmParser/LLLexer.h @@ -0,0 +1,57 @@ +//===- LLLexer.h - Lexer for LLVM Assembly Files ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by Chris Lattner and 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: + 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 |