1 //===-- MCAsmParser.cpp - Abstract Asm Parser Interface -------------------===//
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 #include "llvm/MC/MCParser/MCAsmParser.h"
11 #include "llvm/ADT/StringRef.h"
12 #include "llvm/ADT/Twine.h"
13 #include "llvm/Config/llvm-config.h"
14 #include "llvm/MC/MCParser/MCAsmLexer.h"
15 #include "llvm/MC/MCParser/MCParsedAsmOperand.h"
16 #include "llvm/MC/MCParser/MCTargetAsmParser.h"
17 #include "llvm/Support/Debug.h"
18 #include "llvm/Support/SMLoc.h"
19 #include "llvm/Support/raw_ostream.h"
24 MCAsmParser::MCAsmParser() : ShowParsedOperands(0) {}
26 MCAsmParser::~MCAsmParser() = default;
28 void MCAsmParser::setTargetParser(MCTargetAsmParser &P) {
29 assert(!TargetParser && "Target parser is already initialized!");
31 TargetParser->Initialize(*this);
34 const AsmToken &MCAsmParser::getTok() const {
35 return getLexer().getTok();
38 bool MCAsmParser::parseTokenLoc(SMLoc &Loc) {
39 Loc = getTok().getLoc();
43 bool MCAsmParser::parseEOL(const Twine &Msg) {
44 if (getTok().getKind() != AsmToken::EndOfStatement)
45 return Error(getTok().getLoc(), Msg);
50 bool MCAsmParser::parseToken(AsmToken::TokenKind T, const Twine &Msg) {
51 if (T == AsmToken::EndOfStatement)
53 if (getTok().getKind() != T)
54 return Error(getTok().getLoc(), Msg);
59 bool MCAsmParser::parseIntToken(int64_t &V, const Twine &Msg) {
60 if (getTok().getKind() != AsmToken::Integer)
62 V = getTok().getIntVal();
67 bool MCAsmParser::parseOptionalToken(AsmToken::TokenKind T) {
68 bool Present = (getTok().getKind() == T);
74 bool MCAsmParser::check(bool P, const Twine &Msg) {
75 return check(P, getTok().getLoc(), Msg);
78 bool MCAsmParser::check(bool P, SMLoc Loc, const Twine &Msg) {
80 return Error(Loc, Msg);
84 bool MCAsmParser::TokError(const Twine &Msg, SMRange Range) {
85 return Error(getLexer().getLoc(), Msg, Range);
88 bool MCAsmParser::Error(SMLoc L, const Twine &Msg, SMRange Range) {
92 Msg.toVector(PErr.Msg);
94 PendingErrors.push_back(PErr);
96 // If we threw this parsing error after a lexing error, this should
97 // supercede the lexing error and so we remove it from the Lexer
98 // before it can propagate
99 if (getTok().is(AsmToken::Error))
104 bool MCAsmParser::addErrorSuffix(const Twine &Suffix) {
105 // Make sure lexing errors have propagated to the parser.
106 if (getTok().is(AsmToken::Error))
108 for (auto &PErr : PendingErrors)
109 Suffix.toVector(PErr.Msg);
113 bool MCAsmParser::parseMany(function_ref<bool()> parseOne, bool hasComma) {
114 if (parseOptionalToken(AsmToken::EndOfStatement))
119 if (parseOptionalToken(AsmToken::EndOfStatement))
121 if (hasComma && parseToken(AsmToken::Comma))
127 bool MCAsmParser::parseExpression(const MCExpr *&Res) {
129 return parseExpression(Res, L);
132 void MCParsedAsmOperand::dump() const {
133 // Cannot completely remove virtual function even in release mode.
134 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
135 dbgs() << " " << *this;