Inheritance diagram for antlr.debug.ParseTreeDebugParser:

Public Member Functions
	ParseTreeDebugParser (int k_)
	ParseTreeDebugParser (ParserSharedInputState state, int k_)
	ParseTreeDebugParser (TokenBuffer tokenBuf, int k_)
	ParseTreeDebugParser (TokenStream lexer, int k_)
ParseTree	getParseTree ()
int	getNumberOfDerivationSteps ()
void	match (int i) throws MismatchedTokenException, TokenStreamException
void	match (BitSet bitSet) throws MismatchedTokenException, TokenStreamException
void	matchNot (int i) throws MismatchedTokenException, TokenStreamException
void	traceIn (String s) throws TokenStreamException
void	traceOut (String s) throws TokenStreamException
Protected Member Functions
void	addCurrentTokenToParseTree () throws TokenStreamException
Protected Attributes
Stack	currentParseTreeRoot = new Stack()
ParseTreeRule	mostRecentParseTreeRoot = null
int	numberOfDerivationSteps = 1

Detailed Description

Override the standard matching and rule entry/exit routines to build parse trees. This class is useful for 2.7.3 where you can specify a superclass like

class TinyCParser extends Parser(ParseTreeDebugParser);

Constructor & Destructor Documentation

antlr.debug.ParseTreeDebugParser.ParseTreeDebugParser ( int k_ )

antlr.debug.ParseTreeDebugParser.ParseTreeDebugParser	(	ParserSharedInputState	state,
		int	k_
	)

antlr.debug.ParseTreeDebugParser.ParseTreeDebugParser	(	TokenBuffer	tokenBuf,
		int	k_
	)

antlr.debug.ParseTreeDebugParser.ParseTreeDebugParser	(	TokenStream	lexer,
		int	k_
	)

Member Function Documentation

void antlr.debug.ParseTreeDebugParser.addCurrentTokenToParseTree ( ) throws TokenStreamException [protected]

This adds LT(1) to the current parse subtree. Note that the match() routines add the node before checking for correct match. This means that, upon mismatched token, there will a token node in the tree corresponding to where that token was expected. For no viable alternative errors, no node will be in the tree as nothing was matched() (the lookahead failed to predict an alternative).

References antlr.BaseAST.addChild(), antlr.debug.ParseTreeDebugParser.currentParseTreeRoot, antlr.ParserSharedInputState.guessing, antlr.Parser.inputState, antlr.LLkParser.LA(), and antlr.LLkParser.LT().

Referenced by antlr.debug.ParseTreeDebugParser.match(), and antlr.debug.ParseTreeDebugParser.matchNot().

int antlr.debug.ParseTreeDebugParser.getNumberOfDerivationSteps ( )

References antlr.debug.ParseTreeDebugParser.numberOfDerivationSteps.

ParseTree antlr.debug.ParseTreeDebugParser.getParseTree ( )

References antlr.debug.ParseTreeDebugParser.mostRecentParseTreeRoot.

void antlr.debug.ParseTreeDebugParser.match ( BitSet b ) throws MismatchedTokenException, TokenStreamException

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

Reimplemented from antlr.Parser.

References antlr.debug.ParseTreeDebugParser.addCurrentTokenToParseTree().

void antlr.debug.ParseTreeDebugParser.match ( int t ) throws MismatchedTokenException, TokenStreamException

Make sure current lookahead symbol matches token type t. Throw an exception upon mismatch, which is catch by either the error handler or by the syntactic predicate.

Reimplemented from antlr.Parser.

References antlr.debug.ParseTreeDebugParser.addCurrentTokenToParseTree().

void antlr.debug.ParseTreeDebugParser.matchNot ( int i ) throws MismatchedTokenException, TokenStreamException