//
// 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 file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#ifndef LIB_ASMPARSER_LLLEXER_H
#define LIB_ASMPARSER_LLLEXER_H
-#include <vector>
+#include "LLToken.h"
+#include "llvm/ADT/APFloat.h"
+#include "llvm/ADT/APSInt.h"
+#include "llvm/Support/SourceMgr.h"
#include <string>
-#include <iosfwd>
namespace llvm {
class MemoryBuffer;
-
+ class Type;
+ class SMDiagnostic;
+ class LLVMContext;
+
class LLLexer {
const char *CurPtr;
- unsigned CurLineNo;
MemoryBuffer *CurBuf;
-
+ SMDiagnostic &ErrorInfo;
+ SourceMgr &SM;
+ LLVMContext &Context;
+
+ // Information about the current token.
const char *TokStart;
-
- std::string TheError;
+ lltok::Kind CurKind;
+ std::string StrVal;
+ unsigned UIntVal;
+ Type *TyVal;
+ APFloat APFloatVal;
+ APSInt APSIntVal;
+
public:
- LLLexer(MemoryBuffer *StartBuf);
+ explicit LLLexer(MemoryBuffer *StartBuf, SourceMgr &SM, SMDiagnostic &,
+ LLVMContext &C);
~LLLexer() {}
- const char *getTokStart() const { return TokStart; }
- unsigned getTokLength() const { return CurPtr-TokStart; }
- unsigned getLineNo() const { return CurLineNo; }
+ 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; }
+ 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 Twine &Msg) const;
+ bool Error(const Twine &Msg) const { return Error(getLoc(), Msg); }
std::string getFilename() const;
- int LexToken();
-
- const std::string getError() const { return TheError; }
-
+
private:
+ lltok::Kind LexToken();
+
int getNextChar();
void SkipLineComment();
- int LexIdentifier();
- int LexDigitOrNegative();
- int LexPositive();
- int LexAt();
- int LexPercent();
- int LexQuote();
- int Lex0x();
+ lltok::Kind ReadString(lltok::Kind kind);
+ bool ReadVarName();
+
+ lltok::Kind LexIdentifier();
+ lltok::Kind LexDigitOrNegative();
+ lltok::Kind LexPositive();
+ lltok::Kind LexAt();
+ lltok::Kind LexExclaim();
+ lltok::Kind LexPercent();
+ lltok::Kind LexQuote();
+ lltok::Kind Lex0x();
+ lltok::Kind LexHash();
+
+ 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