LLVM: llvm::MCAsmParser Class Reference (original) (raw)

Generic assembler parser interface, for use by target specific assembly parsers. More...

#include "[llvm/MC/MCParser/MCAsmParser.h](MCAsmParser%5F8h%5Fsource.html)"

Public Member Functions
MCAsmParser (const MCAsmParser &)=delete
MCAsmParser & operator= (const MCAsmParser &)=delete
virtual ~MCAsmParser ()
virtual void addDirectiveHandler (StringRef Directive, ExtensionDirectiveHandler Handler)=0
virtual void addAliasForDirective (StringRef Directive, StringRef Alias)=0
MCContext & getContext ()
MCStreamer & getStreamer ()
SourceMgr & getSourceManager ()
AsmLexer & getLexer ()
const AsmLexer & getLexer () const
MCTargetAsmParser & getTargetParser () const
void setTargetParser (MCTargetAsmParser &P)
virtual unsigned getAssemblerDialect ()
virtual void setAssemblerDialect (unsigned i)
bool getShowParsedOperands () const
void setShowParsedOperands (bool Value)
virtual bool Run (bool NoInitialTextSection, bool NoFinalize=false)=0
Run the parser on the input source buffer.
virtual void setParsingMSInlineAsm (bool V)=0
virtual bool isParsingMSInlineAsm ()=0
virtual bool discardLTOSymbol (StringRef) const
virtual bool isParsingMasm () const
virtual bool defineMacro (StringRef Name, StringRef Value)
virtual bool lookUpField (StringRef Name, AsmFieldInfo &Info) const
virtual bool lookUpField (StringRef Base, StringRef Member, AsmFieldInfo &Info) const
virtual bool lookUpType (StringRef Name, AsmTypeInfo &Info) const
virtual bool parseMSInlineAsm (std::string &AsmString, unsigned &NumOutputs, unsigned &NumInputs, SmallVectorImpl< std::pair< void *, bool > > &OpDecls, SmallVectorImpl< std::string > &Constraints, SmallVectorImpl< std::string > &Clobbers, const MCInstrInfo *MII, MCInstPrinter *IP, MCAsmParserSemaCallback &SI)=0
Parse MS-style inline assembly.
virtual void Note (SMLoc L, const Twine &Msg, SMRange Range={})=0
Emit a note at the location L, with the message Msg.
virtual bool Warning (SMLoc L, const Twine &Msg, SMRange Range={})=0
Emit a warning at the location L, with the message Msg.
bool Error (SMLoc L, const Twine &Msg, SMRange Range={})
Return an error at the location L, with the message Msg.
virtual bool printError (SMLoc L, const Twine &Msg, SMRange Range={})=0
Emit an error at the location L, with the message Msg.
bool hasPendingError ()
bool printPendingErrors ()
void clearPendingErrors ()
bool addErrorSuffix (const Twine &Suffix)
virtual const AsmToken & Lex ()=0
Get the next AsmToken in the stream, possibly handling file inclusion first.
const AsmToken & getTok () const
Get the current AsmToken from the stream.
bool TokError (const Twine &Msg, SMRange Range={})
Report an error at the current lexer location.
bool parseTokenLoc (SMLoc &Loc)
bool parseToken (AsmToken::TokenKind T, const Twine &Msg="unexpected token")
bool parseOptionalToken (AsmToken::TokenKind T)
Attempt to parse and consume token, returning true on success.
bool parseComma ()
bool parseRParen ()
bool parseEOL ()
bool parseEOL (const Twine &ErrMsg)
bool parseMany (function_ref< bool()> parseOne, bool hasComma=true)
bool parseIntToken (int64_t &V, const Twine &ErrMsg="expected integer")
bool check (bool P, const Twine &Msg)
bool check (bool P, SMLoc Loc, const Twine &Msg)
virtual bool parseIdentifier (StringRef &Res)=0
Parse an identifier or string (as a quoted identifier) and set Res to the identifier contents.
bool parseSymbol (MCSymbol *&Res)
Parse identifier and get or create symbol for it.
virtual StringRef parseStringToEndOfStatement ()=0
Parse up to the end of statement and return the contents from the current token until the end of the statement; the current token on exit will be either the EndOfStatement or EOF.
virtual bool parseEscapedString (std::string &Data)=0
Parse the current token as a string which may include escaped characters and return the string contents.
virtual bool parseAngleBracketString (std::string &Data)=0
Parse an angle-bracket delimited string at the current position if one is present, returning the string contents.
virtual void eatToEndOfStatement ()=0
Skip to the end of the current statement, for error recovery.
virtual bool parseExpression (const MCExpr *&Res, SMLoc &EndLoc)=0
Parse an arbitrary expression.
bool parseExpression (const MCExpr *&Res)
virtual bool parsePrimaryExpr (const MCExpr *&Res, SMLoc &EndLoc, AsmTypeInfo *TypeInfo=nullptr)=0
Parse a primary expression.
virtual bool parseParenExpression (const MCExpr *&Res, SMLoc &EndLoc)=0
Parse an arbitrary expression, assuming that an initial '(' has already been consumed.
virtual bool parseAbsoluteExpression (int64_t &Res)=0
Parse an expression which must evaluate to an absolute value.
virtual bool checkForValidSection ()=0
Ensure that we have a valid section set in the streamer.
bool parseGNUAttribute (SMLoc L, int64_t &Tag, int64_t &IntegerValue)
Parse a .gnu_attribute.
bool parseAtSpecifier (const MCExpr *&Res, SMLoc &EndLoc)
const MCExpr * applySpecifier (const MCExpr *E, uint32_t Variant)
Protected Attributes
MCContext & Ctx
MCStreamer & Out
SourceMgr & SrcMgr
const MCAsmInfo & MAI
AsmLexer Lexer
SmallVector< MCPendingError, 0 > PendingErrors
bool HadError = false
Flag tracking whether any errors have been encountered.
bool ShowParsedOperands = false

Generic assembler parser interface, for use by target specific assembly parsers.

Definition at line 124 of file MCAsmParser.h.

◆ DirectiveHandler

◆ ExtensionDirectiveHandler

Initial value:

std::pair<MCAsmParserExtension*, DirectiveHandler>

Definition at line 127 of file MCAsmParser.h.

◆ MCAsmParser() [2/2]

◆ ~MCAsmParser()

MCAsmParser::~MCAsmParser ( ) virtualdefault

◆ addAliasForDirective()

virtual void llvm::MCAsmParser::addAliasForDirective ( StringRef Directive, StringRef Alias ) pure virtual

◆ addDirectiveHandler()

virtual void llvm::MCAsmParser::addDirectiveHandler ( StringRef Directive, ExtensionDirectiveHandler Handler ) pure virtual

◆ addErrorSuffix()

◆ applySpecifier()

Definition at line 1321 of file AsmParser.cpp.

References applySpecifier(), llvm::MCExpr::Binary, llvm::cast(), llvm::MCExpr::Constant, llvm::MCBinaryExpr::create(), llvm::MCSymbolRefExpr::create(), llvm::MCUnaryExpr::create(), Ctx, getContext(), llvm::MCBinaryExpr::getLHS(), llvm::MCExpr::getLoc(), llvm::MCBinaryExpr::getOpcode(), llvm::MCUnaryExpr::getOpcode(), llvm::MCBinaryExpr::getRHS(), llvm::MCSymbolRefExpr::getSpecifier(), llvm::MCUnaryExpr::getSubExpr(), llvm::MCSymbolRefExpr::getSymbol(), getTargetParser(), getTok(), llvm_unreachable, llvm::MCExpr::Specifier, llvm::Sub, llvm::MCExpr::SymbolRef, llvm::MCExpr::Target, TokError(), and llvm::MCExpr::Unary.

Referenced by applySpecifier(), checkForValidSection(), and parseAtSpecifier().

◆ check() [1/2]

◆ check() [2/2]

◆ checkForValidSection()

virtual bool llvm::MCAsmParser::checkForValidSection ( ) pure virtual

◆ clearPendingErrors()

void llvm::MCAsmParser::clearPendingErrors ( ) inline

◆ defineMacro()

◆ discardLTOSymbol()

virtual bool llvm::MCAsmParser::discardLTOSymbol ( StringRef ) const inlinevirtual

◆ eatToEndOfStatement()

virtual void llvm::MCAsmParser::eatToEndOfStatement ( ) pure virtual

Skip to the end of the current statement, for error recovery.

◆ Error()

Return an error at the location L, with the message Msg.

This may be modified before being emitted.

Returns

The return value is always true, as an idiomatic convenience to clients.

Definition at line 104 of file MCAsmParser.cpp.

References llvm::AsmToken::Error, getLexer(), getTok(), llvm::AsmLexer::Lex(), llvm::MCAsmParser::MCPendingError::Loc, llvm::MCAsmParser::MCPendingError::Msg, PendingErrors, llvm::MCAsmParser::MCPendingError::Range, Range, and llvm::Twine::toVector().

Referenced by llvm::MCParserUtils::parseAssignmentExpression().

◆ getAssemblerDialect()

virtual unsigned llvm::MCAsmParser::getAssemblerDialect ( ) inlinevirtual

◆ getContext()

MCContext & llvm::MCAsmParser::getContext ( ) inline

◆ getLexer() [1/2]

AsmLexer & llvm::MCAsmParser::getLexer ( ) inline

◆ getLexer() [2/2]

◆ getShowParsedOperands()

bool llvm::MCAsmParser::getShowParsedOperands ( ) const inline

◆ getSourceManager()

SourceMgr & llvm::MCAsmParser::getSourceManager ( ) inline

◆ getStreamer()

MCStreamer & llvm::MCAsmParser::getStreamer ( ) inline

◆ getTargetParser()

◆ getTok()

Get the current AsmToken from the stream.

Definition at line 43 of file MCAsmParser.cpp.

References getLexer(), and llvm::AsmLexer::getTok().

Referenced by addErrorSuffix(), applySpecifier(), check(), Error(), Lex(), llvm::MCParserUtils::parseAssignmentExpression(), parseAtSpecifier(), parseEOL(), parseEOL(), parseGNUAttribute(), parseIntToken(), parseOptionalToken(), parseToken(), and parseTokenLoc().

◆ hasPendingError()

bool llvm::MCAsmParser::hasPendingError ( ) inline

◆ isParsingMasm()

virtual bool llvm::MCAsmParser::isParsingMasm ( ) const inlinevirtual

◆ isParsingMSInlineAsm()

virtual bool llvm::MCAsmParser::isParsingMSInlineAsm ( ) pure virtual

◆ Lex()

◆ lookUpField() [1/2]

◆ lookUpField() [2/2]

◆ lookUpType()

◆ Note()

Emit a note at the location L, with the message Msg.

References Range.

◆ operator=()

◆ parseAbsoluteExpression()

virtual bool llvm::MCAsmParser::parseAbsoluteExpression ( int64_t & Res) pure virtual

Parse an expression which must evaluate to an absolute value.

Parameters

Res - The value of the absolute expression. The result is undefined on error.

Returns

- False on success.

Referenced by expectAbsExpression().

◆ parseAngleBracketString()

virtual bool llvm::MCAsmParser::parseAngleBracketString ( std::string & Data) pure virtual

Parse an angle-bracket delimited string at the current position if one is present, returning the string contents.

References llvm::Data.

◆ parseAtSpecifier()

◆ parseComma()

bool llvm::MCAsmParser::parseComma ( ) inline

◆ parseEOL() [1/2]

bool MCAsmParser::parseEOL ( )

◆ parseEOL() [2/2]

◆ parseEscapedString()

virtual bool llvm::MCAsmParser::parseEscapedString ( std::string & Data) pure virtual

Parse the current token as a string which may include escaped characters and return the string contents.

References llvm::Data.

◆ parseExpression() [1/2]

◆ parseExpression() [2/2]

◆ parseGNUAttribute()

bool MCAsmParser::parseGNUAttribute ( SMLoc L,
int64_t & Tag,
int64_t & IntegerValue )

◆ parseIdentifier()

virtual bool llvm::MCAsmParser::parseIdentifier ( StringRef & Res) pure virtual

Parse an identifier or string (as a quoted identifier) and set Res to the identifier contents.

References parseSymbol().

Referenced by parseSymbol().

◆ parseIntToken()

bool MCAsmParser::parseIntToken ( int64_t & V,
const Twine & ErrMsg = "expected integer" )

◆ parseMany()

◆ parseMSInlineAsm()

Parse MS-style inline assembly.

◆ parseOptionalToken()

◆ parseParenExpression()

Parse an arbitrary expression, assuming that an initial '(' has already been consumed.

Parameters

Res - The value of the expression. The result is undefined on error.

Returns

- False on success.

◆ parsePrimaryExpr()

Parse a primary expression.

Parameters

Res - The value of the expression. The result is undefined on error.

Returns

- False on success.

◆ parseRParen()

bool llvm::MCAsmParser::parseRParen ( ) inline

◆ parseStringToEndOfStatement()

virtual StringRef llvm::MCAsmParser::parseStringToEndOfStatement ( ) pure virtual

Parse up to the end of statement and return the contents from the current token until the end of the statement; the current token on exit will be either the EndOfStatement or EOF.

◆ parseSymbol()

◆ parseToken()

◆ parseTokenLoc()

bool MCAsmParser::parseTokenLoc ( SMLoc & Loc )

◆ printError()

Emit an error at the location L, with the message Msg.

Returns

The return value is always true, as an idiomatic convenience to clients.

References Range.

Referenced by printPendingErrors().

◆ printPendingErrors()

bool llvm::MCAsmParser::printPendingErrors ( ) inline

◆ Run()

virtual bool llvm::MCAsmParser::Run ( bool NoInitialTextSection, bool NoFinalize = false ) pure virtual

Run the parser on the input source buffer.

◆ setAssemblerDialect()

virtual void llvm::MCAsmParser::setAssemblerDialect ( unsigned i) inlinevirtual

◆ setParsingMSInlineAsm()

virtual void llvm::MCAsmParser::setParsingMSInlineAsm ( bool V) pure virtual

◆ setShowParsedOperands()

void llvm::MCAsmParser::setShowParsedOperands ( bool Value) inline

◆ setTargetParser()

◆ TokError()

◆ Warning()

Emit a warning at the location L, with the message Msg.

Returns

The return value is true, if warnings are fatal.

References Range.

◆ Ctx

◆ HadError

bool llvm::MCAsmParser::HadError = false protected

Flag tracking whether any errors have been encountered.

Definition at line 150 of file MCAsmParser.h.

◆ Lexer

◆ MAI

◆ Out

◆ PendingErrors

◆ ShowParsedOperands

bool llvm::MCAsmParser::ShowParsedOperands = false protected

◆ SrcMgr

The documentation for this class was generated from the following files: