LLVM  3.7.0
Public Types | Public Member Functions | Protected Member Functions | List of all members
llvm::MCAsmParser Class Referenceabstract

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

#include <MCAsmParser.h>

Public Types

typedef bool(* DirectiveHandler )(MCAsmParserExtension *, StringRef, SMLoc)
 
typedef std::pair
< MCAsmParserExtension
*, DirectiveHandler
ExtensionDirectiveHandler
 

Public Member Functions

virtual ~MCAsmParser ()
 
virtual void addDirectiveHandler (StringRef Directive, ExtensionDirectiveHandler Handler)=0
 
virtual void addAliasForDirective (StringRef Directive, StringRef Alias)=0
 
virtual SourceMgrgetSourceManager ()=0
 
virtual MCAsmLexergetLexer ()=0
 
const MCAsmLexergetLexer () const
 
virtual MCContextgetContext ()=0
 
virtual MCStreamergetStreamer ()=0
 Return the output streamer for the assembler. More...
 
MCTargetAsmParsergetTargetParser () 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. More...
 
virtual void setParsingInlineAsm (bool V)=0
 
virtual bool isParsingInlineAsm ()=0
 
virtual bool parseMSInlineAsm (void *AsmLoc, std::string &AsmString, unsigned &NumOutputs, unsigned &NumInputs, SmallVectorImpl< std::pair< void *, bool >> &OpDecls, SmallVectorImpl< std::string > &Constraints, SmallVectorImpl< std::string > &Clobbers, const MCInstrInfo *MII, const MCInstPrinter *IP, MCAsmParserSemaCallback &SI)=0
 Parse MS-style inline assembly. More...
 
virtual void Note (SMLoc L, const Twine &Msg, ArrayRef< SMRange > Ranges=None)=0
 Emit a note at the location L, with the message Msg. More...
 
virtual bool Warning (SMLoc L, const Twine &Msg, ArrayRef< SMRange > Ranges=None)=0
 Emit a warning at the location L, with the message Msg. More...
 
virtual bool Error (SMLoc L, const Twine &Msg, ArrayRef< SMRange > Ranges=None)=0
 Emit an error at the location L, with the message Msg. More...
 
virtual const AsmTokenLex ()=0
 Get the next AsmToken in the stream, possibly handling file inclusion first. More...
 
const AsmTokengetTok () const
 Get the current AsmToken from the stream. More...
 
bool TokError (const Twine &Msg, ArrayRef< SMRange > Ranges=None)
 Report an error at the current lexer location. More...
 
virtual bool parseIdentifier (StringRef &Res)=0
 Parse an identifier or string (as a quoted identifier) and set Res to the identifier contents. More...
 
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. More...
 
virtual bool parseEscapedString (std::string &Data)=0
 Parse the current token as a string which may include escaped characters and return the string contents. More...
 
virtual void eatToEndOfStatement ()=0
 Skip to the end of the current statement, for error recovery. More...
 
virtual bool parseExpression (const MCExpr *&Res, SMLoc &EndLoc)=0
 Parse an arbitrary expression. More...
 
bool parseExpression (const MCExpr *&Res)
 
virtual bool parsePrimaryExpr (const MCExpr *&Res, SMLoc &EndLoc)=0
 Parse a primary expression. More...
 
virtual bool parseParenExpression (const MCExpr *&Res, SMLoc &EndLoc)=0
 Parse an arbitrary expression, assuming that an initial '(' has already been consumed. More...
 
virtual bool parseAbsoluteExpression (int64_t &Res)=0
 Parse an expression which must evaluate to an absolute value. More...
 
virtual void checkForValidSection ()=0
 Ensure that we have a valid section set in the streamer. More...
 
virtual bool parseParenExprOfDepth (unsigned ParenDepth, const MCExpr *&Res, SMLoc &EndLoc)=0
 Parse an arbitrary expression of a specified parenthesis depth, assuming that the initial '(' characters have already been consumed. More...
 

Protected Member Functions

 MCAsmParser ()
 

Detailed Description

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

Definition at line 64 of file MCAsmParser.h.

Member Typedef Documentation

typedef bool(* llvm::MCAsmParser::DirectiveHandler)(MCAsmParserExtension *, StringRef, SMLoc)

Definition at line 66 of file MCAsmParser.h.

Definition at line 68 of file MCAsmParser.h.

Constructor & Destructor Documentation

MCAsmParser::MCAsmParser ( )
protected

Definition at line 20 of file MCAsmParser.cpp.

MCAsmParser::~MCAsmParser ( )
virtual

Definition at line 23 of file MCAsmParser.cpp.

Member Function Documentation

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

Ensure that we have a valid section set in the streamer.

Otherwise, report an error and switch to .text.

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

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

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

virtual bool llvm::MCAsmParser::Error ( SMLoc  L,
const Twine Msg,
ArrayRef< SMRange Ranges = None 
)
pure virtual

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

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

Referenced by llvm::MCAsmParserExtension::Error(), llvm::MCParserUtils::parseAssignmentExpression(), and TokError().

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

Definition at line 104 of file MCAsmParser.h.

virtual MCContext& llvm::MCAsmParser::getContext ( )
pure virtual
virtual MCAsmLexer& llvm::MCAsmParser::getLexer ( )
pure virtual
const MCAsmLexer& llvm::MCAsmParser::getLexer ( ) const
inline

Definition at line 92 of file MCAsmParser.h.

References getLexer().

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

Definition at line 107 of file MCAsmParser.h.

virtual SourceMgr& llvm::MCAsmParser::getSourceManager ( )
pure virtual
virtual MCStreamer& llvm::MCAsmParser::getStreamer ( )
pure virtual

Return the output streamer for the assembler.

Referenced by llvm::MCAsmParserExtension::getStreamer(), and llvm::MCParserUtils::parseAssignmentExpression().

MCTargetAsmParser& llvm::MCAsmParser::getTargetParser ( ) const
inline

Definition at line 101 of file MCAsmParser.h.

const AsmToken & MCAsmParser::getTok ( ) const

Get the current AsmToken from the stream.

Definition at line 32 of file MCAsmParser.cpp.

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

Referenced by llvm::MCAsmParserExtension::getTok().

virtual bool llvm::MCAsmParser::isParsingInlineAsm ( )
pure virtual
virtual const AsmToken& llvm::MCAsmParser::Lex ( )
pure virtual

Get the next AsmToken in the stream, possibly handling file inclusion first.

Referenced by llvm::MCAsmParserExtension::Lex(), and llvm::MCParserUtils::parseAssignmentExpression().

virtual void llvm::MCAsmParser::Note ( SMLoc  L,
const Twine Msg,
ArrayRef< SMRange Ranges = None 
)
pure virtual

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

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.
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.

virtual bool llvm::MCAsmParser::parseExpression ( const MCExpr *&  Res,
SMLoc EndLoc 
)
pure virtual

Parse an arbitrary expression.

Parameters
Res- The value of the expression. The result is undefined on error.
Returns
- False on success.

Referenced by llvm::MCParserUtils::parseAssignmentExpression(), and parseExpression().

bool MCAsmParser::parseExpression ( const MCExpr *&  Res)

Definition at line 41 of file MCAsmParser.cpp.

References parseExpression().

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.

virtual bool llvm::MCAsmParser::parseMSInlineAsm ( void *  AsmLoc,
std::string &  AsmString,
unsigned NumOutputs,
unsigned NumInputs,
SmallVectorImpl< std::pair< void *, bool >> &  OpDecls,
SmallVectorImpl< std::string > &  Constraints,
SmallVectorImpl< std::string > &  Clobbers,
const MCInstrInfo MII,
const MCInstPrinter IP,
MCAsmParserSemaCallback SI 
)
pure virtual

Parse MS-style inline assembly.

virtual bool llvm::MCAsmParser::parseParenExpression ( const MCExpr *&  Res,
SMLoc EndLoc 
)
pure virtual

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.
virtual bool llvm::MCAsmParser::parseParenExprOfDepth ( unsigned  ParenDepth,
const MCExpr *&  Res,
SMLoc EndLoc 
)
pure virtual

Parse an arbitrary expression of a specified parenthesis depth, assuming that the initial '(' characters have already been consumed.

Parameters
ParenDepth- Specifies how many trailing expressions outside the current parentheses we have to parse.
Res- The value of the expression. The result is undefined on error.
Returns
- False on success.
virtual bool llvm::MCAsmParser::parsePrimaryExpr ( const MCExpr *&  Res,
SMLoc EndLoc 
)
pure virtual

Parse a primary expression.

Parameters
Res- The value of the expression. The result is undefined on error.
Returns
- False on success.
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.

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

Run the parser on the input source buffer.

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

Definition at line 105 of file MCAsmParser.h.

virtual void llvm::MCAsmParser::setParsingInlineAsm ( bool  V)
pure virtual
void llvm::MCAsmParser::setShowParsedOperands ( bool  Value)
inline

Definition at line 108 of file MCAsmParser.h.

void MCAsmParser::setTargetParser ( MCTargetAsmParser P)

Definition at line 26 of file MCAsmParser.cpp.

References llvm::MCAsmParserExtension::Initialize(), and P.

bool MCAsmParser::TokError ( const Twine Msg,
ArrayRef< SMRange Ranges = None 
)

Report an error at the current lexer location.

Definition at line 36 of file MCAsmParser.cpp.

References Error(), and getLexer().

Referenced by llvm::MCParserUtils::parseAssignmentExpression(), and llvm::MCAsmParserExtension::TokError().

virtual bool llvm::MCAsmParser::Warning ( SMLoc  L,
const Twine Msg,
ArrayRef< SMRange Ranges = None 
)
pure virtual

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

Returns
The return value is true, if warnings are fatal.

Referenced by llvm::MCAsmParserExtension::Warning().


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