diff --git a/llvm/include/llvm/MC/MCAsmParser.h b/llvm/include/llvm/MC/MCAsmParser.h index 7cb6433a29fe..a6acf4e94df6 100644 --- a/llvm/include/llvm/MC/MCAsmParser.h +++ b/llvm/include/llvm/MC/MCAsmParser.h @@ -10,8 +10,13 @@ #ifndef LLVM_MC_MCASMPARSER_H #define LLVM_MC_MCASMPARSER_H +#include "llvm/Support/DataTypes.h" + namespace llvm { class MCAsmLexer; +class MCValue; +class SMLoc; +class Twine; /// MCAsmParser - Generic assembler parser interface, for use by target specific /// assembly parsers. @@ -25,6 +30,43 @@ public: virtual ~MCAsmParser(); virtual MCAsmLexer &getLexer() = 0; + + /// Warning - Emit a warning at the location \arg L, with the message \arg + /// Msg. + virtual void Warning(SMLoc L, const Twine &Msg) = 0; + + /// Warning - Emit an error at the location \arg L, with the message \arg + /// Msg. + /// + /// \return The return value is always true, as an idiomatic convenience to + /// clients. + virtual bool Error(SMLoc L, const Twine &Msg) = 0; + + /// ParseAbsoluteExpression - Parse an expression which must evaluate to an + /// absolute value. + /// + /// @param Res - The value of the absolute expression. The result is undefined + /// on error. + /// @result - False on success. + virtual bool ParseAbsoluteExpression(int64_t &Res) = 0; + + /// ParseRelocatableExpression - Parse an expression which must be + /// relocatable. + /// + /// @param Res - The relocatable expression value. The result is undefined on + /// error. + /// @result - False on success. + virtual bool ParseRelocatableExpression(MCValue &Res) = 0; + + /// ParseParenRelocatableExpression - Parse an expression which must be + /// relocatable, assuming that an initial '(' has already been consumed. + /// + /// @param Res - The relocatable expression value. The result is undefined on + /// error. + /// @result - False on success. + /// + /// @see ParseRelocatableExpression, ParseParenExpr. + virtual bool ParseParenRelocatableExpression(MCValue &Res) = 0; }; } // End llvm namespace diff --git a/llvm/tools/llvm-mc/AsmParser.h b/llvm/tools/llvm-mc/AsmParser.h index 253bb8ba3db3..e59e85ceb57e 100644 --- a/llvm/tools/llvm-mc/AsmParser.h +++ b/llvm/tools/llvm-mc/AsmParser.h @@ -48,41 +48,32 @@ public: TargetAsmParser &getTargetParser() const { return *TargetParser; } void setTargetParser(TargetAsmParser &P) { TargetParser = &P; } + /// @name MCAsmParser Interface + /// { + virtual MCAsmLexer &getLexer() { return Lexer; } + virtual void Warning(SMLoc L, const Twine &Meg); + + virtual bool Error(SMLoc L, const Twine &Msg); + + virtual bool ParseExpression(AsmExpr *&Res); + + virtual bool ParseAbsoluteExpression(int64_t &Res); + + virtual bool ParseRelocatableExpression(MCValue &Res); + + /// } + private: bool ParseStatement(); - void Warning(SMLoc L, const Twine &Msg); - bool Error(SMLoc L, const Twine &Msg); bool TokError(const char *Msg); void EatToEndOfStatement(); bool ParseAssignment(const StringRef &Name, bool IsDotSet); - /// ParseExpression - Parse a general assembly expression. - /// - /// @param Res - The resulting expression. The pointer value is null on error. - /// @result - False on success. - bool ParseExpression(AsmExpr *&Res); - - /// ParseAbsoluteExpression - Parse an expression which must evaluate to an - /// absolute value. - /// - /// @param Res - The value of the absolute expression. The result is undefined - /// on error. - /// @result - False on success. - bool ParseAbsoluteExpression(int64_t &Res); - - /// ParseRelocatableExpression - Parse an expression which must be - /// relocatable. - /// - /// @param Res - The relocatable expression value. The result is undefined on - /// error. - /// @result - False on success. - bool ParseRelocatableExpression(MCValue &Res); - /// ParseParenRelocatableExpression - Parse an expression which must be /// relocatable, assuming that an initial '(' has already been consumed. ///