123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
//===- llvm/MC/MCAsmParserExtension.h - Asm Parser Hooks --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCPARSER_MCASMPARSEREXTENSION_H
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#define LLVM_MC_MCPARSER_MCASMPARSEREXTENSION_H
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/MC/MCParser/MCAsmLexer.h"
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#include "llvm/MC/MCParser/MCAsmParser.h"
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#include "llvm/Support/SMLoc.h"
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namespace llvm {
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class Twine;
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/// Generic interface for extending the MCAsmParser,
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/// which is implemented by target and object file assembly parser
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/// implementations.
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class MCAsmParserExtension {
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MCAsmParser *Parser;
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protected:
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MCAsmParserExtension();
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// Helper template for implementing static dispatch functions.
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template<typename T, bool (T::*Handler)(StringRef, SMLoc)>
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static bool HandleDirective(MCAsmParserExtension *Target,
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StringRef Directive,
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SMLoc DirectiveLoc) {
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T *Obj = static_cast<T*>(Target);
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return (Obj->*Handler)(Directive, DirectiveLoc);
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}
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bool BracketExpressionsSupported = false;
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public:
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MCAsmParserExtension(const MCAsmParserExtension &) = delete;
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MCAsmParserExtension &operator=(const MCAsmParserExtension &) = delete;
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virtual ~MCAsmParserExtension();
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/// Initialize the extension for parsing using the given \p Parser.
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/// The extension should use the AsmParser interfaces to register its
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/// parsing routines.
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virtual void Initialize(MCAsmParser &Parser);
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/// \name MCAsmParser Proxy Interfaces
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/// @{
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MCContext &getContext() { return getParser().getContext(); }
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MCAsmLexer &getLexer() { return getParser().getLexer(); }
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const MCAsmLexer &getLexer() const {
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return const_cast<MCAsmParserExtension *>(this)->getLexer();
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}
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MCAsmParser &getParser() { return *Parser; }
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const MCAsmParser &getParser() const {
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return const_cast<MCAsmParserExtension*>(this)->getParser();
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}
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SourceMgr &getSourceManager() { return getParser().getSourceManager(); }
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MCStreamer &getStreamer() { return getParser().getStreamer(); }
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bool Warning(SMLoc L, const Twine &Msg) {
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return getParser().Warning(L, Msg);
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}
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bool Error(SMLoc L, const Twine &Msg, SMRange Range = SMRange()) {
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return getParser().Error(L, Msg, Range);
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}
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void Note(SMLoc L, const Twine &Msg) {
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getParser().Note(L, Msg);
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}
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bool TokError(const Twine &Msg) {
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return getParser().TokError(Msg);
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}
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const AsmToken &Lex() { return getParser().Lex(); }
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const AsmToken &getTok() { return getParser().getTok(); }
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bool parseToken(AsmToken::TokenKind T,
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const Twine &Msg = "unexpected token") {
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return getParser().parseToken(T, Msg);
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}
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bool parseMany(function_ref<bool()> parseOne, bool hasComma = true) {
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return getParser().parseMany(parseOne, hasComma);
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}
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bool parseOptionalToken(AsmToken::TokenKind T) {
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return getParser().parseOptionalToken(T);
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}
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bool ParseDirectiveCGProfile(StringRef, SMLoc);
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bool check(bool P, const Twine &Msg) {
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return getParser().check(P, Msg);
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}
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bool check(bool P, SMLoc Loc, const Twine &Msg) {
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return getParser().check(P, Loc, Msg);
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}
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bool addErrorSuffix(const Twine &Suffix) {
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return getParser().addErrorSuffix(Suffix);
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}
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bool HasBracketExpressions() const { return BracketExpressionsSupported; }
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/// @}
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};
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} // end namespace llvm
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#endif // LLVM_MC_MCPARSER_MCASMPARSEREXTENSION_H
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