antlr::TreeParser Class Reference

Classes
class	Tracer
	Utility class which allows tracing to work even when exceptions are thrown. More...

Public Member Functions
	TreeParser (const TreeParserSharedInputState &state)
virtual RefAST	getAST ()=0
	Get the AST return value squirreled away in the parser.
virtual void	match (RefAST t, const BitSet &b)
	Make sure current lookahead symbol matches the given set Throw an exception upon mismatch, which is caught by either the error handler or by a syntactic predicate.
virtual void	setASTFactory (ASTFactory *factory)
	Specify the AST factory to be used during tree building.
virtual ASTFactory *	getASTFactory () const
	Return pointer to ASTFactory.
virtual const char *	getTokenName (int num) const =0
	Get the name for token 'num'.
virtual int	getNumTokens () const =0
	Return the number of tokens defined.
virtual const char *const *	getTokenNames () const =0
	Return an array of getNumTokens() token names.
virtual void	reportError (const RecognitionException &ex)
	Parser error-reporting function can be overridden in subclass.
virtual void	reportError (const std ::string &s)
	Parser error-reporting function can be overridden in subclass.
virtual void	reportWarning (const std ::string &s)
	Parser warning-reporting function can be overridden in subclass.
virtual void	traceIndent ()
	These are used during when traceTreeParser commandline option is passed.
virtual void	traceIn (const char *rname, RefAST t)
virtual void	traceOut (const char *rname, RefAST t)

Static Public Attributes
static RefAST	ASTNULL
	The AST Null object; the parsing cursor is set to this when it is found to be null.

Protected Member Functions
virtual void	match (RefAST t, int ttype)
virtual void	matchNot (RefAST t, int ttype)

Protected Attributes
ASTFactory *	astFactory
	AST support code; parser and treeparser delegate to this object.
TreeParserSharedInputState	inputState
	The input state of this tree parser.
int	traceDepth
	Used to keep track of indent depth with -traceTreeParser.

Detailed Description

Definition at line 23 of file TreeParser.hpp.

Constructor & Destructor Documentation

TreeParser() [1/2]

antlr::TreeParser::TreeParser ( )

inline

Definition at line 25 of file TreeParser.hpp.

TreeParser() [2/2]

antlr::TreeParser::TreeParser ( const TreeParserSharedInputState & state )

inline

Definition at line 32 of file TreeParser.hpp.

~TreeParser()

virtual antlr::TreeParser::~TreeParser ( )

inlinevirtual

Definition at line 39 of file TreeParser.hpp.

Member Function Documentation

getASTFactory()

virtual ASTFactory * antlr::TreeParser::getASTFactory ( ) const

inlinevirtual

Return pointer to ASTFactory.

Definition at line 68 of file TreeParser.hpp.

match() [1/2]

virtual void antlr::TreeParser::match ( RefAST t, const BitSet & b )

inlinevirtual

Make sure current lookahead symbol matches the given set Throw an exception upon mismatch, which is caught by either the error handler or by a syntactic predicate.

Definition at line 50 of file TreeParser.hpp.

References antlr::AST::getType().

match() [2/2]

virtual void antlr::TreeParser::match ( RefAST t, int ttype )

inlineprotectedvirtual

Definition at line 99 of file TreeParser.hpp.

matchNot()

virtual void antlr::TreeParser::matchNot ( RefAST t, int ttype )

inlineprotectedvirtual

Definition at line 106 of file TreeParser.hpp.

reportError() [1/2]

void antlr::TreeParser::reportError ( const RecognitionException & ex )

virtual

Parser error-reporting function can be overridden in subclass.

Definition at line 23 of file TreeParser.cpp.

References antlr::RecognitionException::toString().

reportError() [2/2]

void antlr::TreeParser::reportError ( const std ::string & s )

virtual

Parser error-reporting function can be overridden in subclass.

Definition at line 29 of file TreeParser.cpp.

reportWarning()

void antlr::TreeParser::reportWarning ( const std ::string & s )

virtual

Parser warning-reporting function can be overridden in subclass.

Definition at line 35 of file TreeParser.cpp.

setASTFactory()

virtual void antlr::TreeParser::setASTFactory ( ASTFactory * factory )

inlinevirtual

Specify the AST factory to be used during tree building.

(Compulsory) Setting the factory is compulsory (if you intend to modify the tree in the treeparser). The AST Factory is shared between parser (who builds the initial AST) and treeparser.

See also

Parser::getASTFactory()

Definition at line 63 of file TreeParser.hpp.

traceIn()

void antlr::TreeParser::traceIn ( const char * rname, RefAST t )

virtual

Definition at line 47 of file TreeParser.cpp.

traceIndent()

void antlr::TreeParser::traceIndent ( )

virtual

These are used during when traceTreeParser commandline option is passed.

Procedure to write out an indent for traceIn and traceOut.

Definition at line 41 of file TreeParser.cpp.

References traceDepth.

traceOut()

void antlr::TreeParser::traceOut ( const char * rname, RefAST t )

virtual

Definition at line 58 of file TreeParser.cpp.

Member Data Documentation

astFactory

ASTFactory* antlr::TreeParser::astFactory

protected

AST support code; parser and treeparser delegate to this object.

Definition at line 114 of file TreeParser.hpp.

ASTNULL

RefAST antlr::TreeParser::ASTNULL

static

The AST Null object; the parsing cursor is set to this when it is found to be null.

This way, we can test the token type of a node without having to have tests for 0 everywhere.

This way, we can test the token type of a node without having to have tests for null everywhere.

Definition at line 96 of file TreeParser.hpp.

inputState

TreeParserSharedInputState antlr::TreeParser::inputState

protected

The input state of this tree parser.

Definition at line 117 of file TreeParser.hpp.

traceDepth

int antlr::TreeParser::traceDepth

protected

Used to keep track of indent depth with -traceTreeParser.

Definition at line 120 of file TreeParser.hpp.

Referenced by traceIndent().

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

• antlr/TreeParser.hpp
• antlr/TreeParser.cpp