mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-29 10:32:47 +00:00
48b2f3e485
not hideous. Also, fix some MSVC compile errors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78115 91177308-0d34-0410-b5e6-96231b3b80d8
91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
//===- 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 "LLToken.h"
|
|
#include "llvm/ADT/APSInt.h"
|
|
#include "llvm/ADT/APFloat.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include <string>
|
|
|
|
namespace llvm {
|
|
class MemoryBuffer;
|
|
class Type;
|
|
class SMDiagnostic;
|
|
struct LLVMContext;
|
|
|
|
class LLLexer {
|
|
const char *CurPtr;
|
|
MemoryBuffer *CurBuf;
|
|
SMDiagnostic &ErrorInfo;
|
|
SourceMgr &SM;
|
|
LLVMContext &Context;
|
|
|
|
// Information about the current token.
|
|
const char *TokStart;
|
|
lltok::Kind CurKind;
|
|
std::string StrVal;
|
|
unsigned UIntVal;
|
|
const Type *TyVal;
|
|
APFloat APFloatVal;
|
|
APSInt APSIntVal;
|
|
|
|
std::string TheError;
|
|
public:
|
|
explicit LLLexer(MemoryBuffer *StartBuf, SourceMgr &SM, SMDiagnostic &,
|
|
LLVMContext &C);
|
|
~LLLexer() {}
|
|
|
|
lltok::Kind Lex() {
|
|
return CurKind = LexToken();
|
|
}
|
|
|
|
typedef SMLoc LocTy;
|
|
LocTy getLoc() const { return SMLoc::getFromPointer(TokStart); }
|
|
lltok::Kind getKind() const { return CurKind; }
|
|
const std::string getStrVal() const { return StrVal; }
|
|
const Type *getTyVal() const { return TyVal; }
|
|
unsigned getUIntVal() const { return UIntVal; }
|
|
const APSInt &getAPSIntVal() const { return APSIntVal; }
|
|
const APFloat &getAPFloatVal() const { return APFloatVal; }
|
|
|
|
|
|
bool Error(LocTy L, const std::string &Msg) const;
|
|
bool Error(const std::string &Msg) const { return Error(getLoc(), Msg); }
|
|
std::string getFilename() const;
|
|
|
|
private:
|
|
lltok::Kind LexToken();
|
|
|
|
int getNextChar();
|
|
void SkipLineComment();
|
|
lltok::Kind LexIdentifier();
|
|
lltok::Kind LexDigitOrNegative();
|
|
lltok::Kind LexPositive();
|
|
lltok::Kind LexAt();
|
|
lltok::Kind LexMetadata();
|
|
lltok::Kind LexPercent();
|
|
lltok::Kind LexQuote();
|
|
lltok::Kind Lex0x();
|
|
|
|
uint64_t atoull(const char *Buffer, const char *End);
|
|
uint64_t HexIntToVal(const char *Buffer, const char *End);
|
|
void HexToIntPair(const char *Buffer, const char *End, uint64_t Pair[2]);
|
|
void FP80HexToIntPair(const char *Buff, const char *End, uint64_t Pair[2]);
|
|
};
|
|
} // end namespace llvm
|
|
|
|
#endif
|