1 //===- AsmLexer.h - Lexer for 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 declares the lexer for assembly files.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_MC_MCPARSER_ASMLEXER_H
15 #define LLVM_MC_MCPARSER_ASMLEXER_H
17 #include "llvm/ADT/StringRef.h"
18 #include "llvm/MC/MCParser/MCAsmLexer.h"
19 #include "llvm/Support/DataTypes.h"
26 /// AsmLexer - Lexer class for assembly files.
27 class AsmLexer : public MCAsmLexer {
31 const MemoryBuffer *CurBuf;
34 void operator=(const AsmLexer&) LLVM_DELETED_FUNCTION;
35 AsmLexer(const AsmLexer&) LLVM_DELETED_FUNCTION;
38 /// LexToken - Read the next token and return its code.
39 AsmToken LexToken() override;
42 AsmLexer(const MCAsmInfo &MAI);
45 void setBuffer(const MemoryBuffer *buf, const char *ptr = nullptr);
47 StringRef LexUntilEndOfStatement() override;
48 StringRef LexUntilEndOfLine();
50 const AsmToken peekTok(bool ShouldSkipSpace = true) override;
52 bool isAtStartOfComment(char Char);
53 bool isAtStatementSeparator(const char *Ptr);
55 const MCAsmInfo &getMAI() const { return MAI; }
59 AsmToken ReturnError(const char *Loc, const std::string &Msg);
61 AsmToken LexIdentifier();
63 AsmToken LexLineComment();
65 AsmToken LexSingleQuote();
67 AsmToken LexFloatLiteral();
68 AsmToken LexHexFloatLiteral(bool NoIntDigits);
71 } // end namespace llvm