1 //===- LLLexer.h - Lexer for LLVM Assembly Files ----------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This class represents the Lexer for .ll files.
12 //===----------------------------------------------------------------------===//
14 #ifndef LIB_ASMPARSER_LLLEXER_H
15 #define LIB_ASMPARSER_LLLEXER_H
18 #include "llvm/ADT/APSInt.h"
19 #include "llvm/ADT/APFloat.h"
20 #include "llvm/Support/SourceMgr.h"
32 SMDiagnostic &ErrorInfo;
36 // Information about the current token.
47 explicit LLLexer(MemoryBuffer *StartBuf, SourceMgr &SM, SMDiagnostic &,
52 return CurKind = LexToken();
56 LocTy getLoc() const { return SMLoc::getFromPointer(TokStart); }
57 lltok::Kind getKind() const { return CurKind; }
58 const std::string &getStrVal() const { return StrVal; }
59 const Type *getTyVal() const { return TyVal; }
60 unsigned getUIntVal() const { return UIntVal; }
61 const APSInt &getAPSIntVal() const { return APSIntVal; }
62 const APFloat &getAPFloatVal() const { return APFloatVal; }
65 bool Error(LocTy L, const std::string &Msg) const;
66 bool Error(const std::string &Msg) const { return Error(getLoc(), Msg); }
67 std::string getFilename() const;
70 lltok::Kind LexToken();
73 void SkipLineComment();
74 lltok::Kind LexIdentifier();
75 lltok::Kind LexDigitOrNegative();
76 lltok::Kind LexPositive();
78 lltok::Kind LexExclaim();
79 lltok::Kind LexPercent();
80 lltok::Kind LexQuote();
83 uint64_t atoull(const char *Buffer, const char *End);
84 uint64_t HexIntToVal(const char *Buffer, const char *End);
85 void HexToIntPair(const char *Buffer, const char *End, uint64_t Pair[2]);
86 void FP80HexToIntPair(const char *Buff, const char *End, uint64_t Pair[2]);
88 } // end namespace llvm