mirror of
https://github.com/c64scene-ar/llvm-6502.git
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8e3a8e0452
drops a dependency on flex and lets us make future progress more easily. Yay for 2 fewer .cvs files to make silly conflicts with. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44213 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
//===- LLLexer.h - Lexer for LLVM Assembly Files ----------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Chris Lattner and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This class represents the Lexer for .ll files.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LIB_ASMPARSER_LLLEXER_H
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#define LIB_ASMPARSER_LLLEXER_H
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#include <vector>
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#include <string>
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#include <iosfwd>
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namespace llvm {
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class MemoryBuffer;
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class LLLexer {
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const char *CurPtr;
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unsigned CurLineNo;
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MemoryBuffer *CurBuf;
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const char *TokStart;
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std::string TheError;
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public:
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LLLexer(MemoryBuffer *StartBuf);
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~LLLexer() {}
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const char *getTokStart() const { return TokStart; }
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unsigned getTokLength() const { return CurPtr-TokStart; }
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unsigned getLineNo() const { return CurLineNo; }
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std::string getFilename() const;
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int LexToken();
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const std::string getError() const { return TheError; }
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private:
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int getNextChar();
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void SkipLineComment();
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int LexIdentifier();
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int LexDigitOrNegative();
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int LexPositive();
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int LexAt();
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int LexPercent();
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int LexQuote();
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int Lex0x();
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};
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} // end namespace llvm
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#endif
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