Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view include/llvm/MC/MCParser/AsmLexer.h @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | 54457678186b |
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//===- AsmLexer.h - Lexer for 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 declares the lexer for assembly files. // //===----------------------------------------------------------------------===// #ifndef LLVM_MC_MCPARSER_ASMLEXER_H #define LLVM_MC_MCPARSER_ASMLEXER_H #include "llvm/ADT/StringRef.h" #include "llvm/MC/MCParser/MCAsmLexer.h" #include "llvm/Support/DataTypes.h" #include <string> namespace llvm { class MemoryBuffer; class MCAsmInfo; /// AsmLexer - Lexer class for assembly files. class AsmLexer : public MCAsmLexer { const MCAsmInfo &MAI; const char *CurPtr; const MemoryBuffer *CurBuf; bool isAtStartOfLine; bool AllowAtInIdentifier; // Cached here to avoid repeated MAI query. void operator=(const AsmLexer&) LLVM_DELETED_FUNCTION; AsmLexer(const AsmLexer&) LLVM_DELETED_FUNCTION; protected: /// LexToken - Read the next token and return its code. virtual AsmToken LexToken(); public: AsmLexer(const MCAsmInfo &MAI); ~AsmLexer(); void setBuffer(const MemoryBuffer *buf, const char *ptr = NULL); virtual StringRef LexUntilEndOfStatement(); StringRef LexUntilEndOfLine(); bool isAtStartOfComment(char Char); bool isAtStatementSeparator(const char *Ptr); const MCAsmInfo &getMAI() const { return MAI; } private: int getNextChar(); AsmToken ReturnError(const char *Loc, const std::string &Msg); AsmToken LexIdentifier(); AsmToken LexSlash(); AsmToken LexLineComment(); AsmToken LexDigit(); AsmToken LexSingleQuote(); AsmToken LexQuote(); AsmToken LexFloatLiteral(); AsmToken LexHexFloatLiteral(bool NoIntDigits); }; } // end namespace llvm #endif