at.dms.compiler.tools.antlr.compiler
Class RuleBlock

java.lang.Object
  at.dms.compiler.tools.antlr.compiler.RuleBlock

public class RuleBlock
extends Object

A list of alternatives and info contained in the rule definition.

Field Summary

protected Vector	alternatives
protected int	alti
protected int	altj
protected int	analysisAlt
protected String	argAction
protected Lookahead[]	cache
protected boolean	defaultErrorHandler
protected boolean	doAutoGen
protected String	enclosingRuleName
protected at.dms.compiler.tools.antlr.compiler.RuleEndElement	endNode
protected boolean	generateAmbigWarnings
protected Grammar	grammar
protected boolean	hasAnAction
protected boolean	hasASynPred
protected int	ID
protected String	ignoreRule
protected String	initAction
protected String	label
protected int	line
protected boolean[]	lock
protected static int	nblks
protected String	returnAction
protected String	ruleName
protected boolean	testLiterals
protected String	throwsSpec
protected boolean	warnWhenFollowAmbig

Constructor Summary

RuleBlock(Grammar g, String r)
Construct a named rule.

RuleBlock(Grammar g, String r, int line)
Construct a named rule with line number information

Method Summary

void	addAlternative(at.dms.compiler.tools.antlr.compiler.Alternative alt)
void	addExceptionSpec(at.dms.compiler.tools.antlr.compiler.ExceptionSpec ex)
at.dms.compiler.tools.antlr.compiler.ExceptionSpec	findExceptionSpec(String label)
at.dms.compiler.tools.antlr.compiler.ExceptionSpec	findExceptionSpec(Token label)
void	generate(JavaCodeGenerator generator)
at.dms.compiler.tools.antlr.compiler.Alternative	getAlternativeAt(int i)
Vector	getAlternatives()
boolean	getAutoGen()
boolean	getDefaultErrorHandler()
at.dms.compiler.tools.antlr.compiler.RuleEndElement	getEndElement()
String	getIgnoreRule()
String	getInitAction()
String	getLabel()
int	getLine()
String	getRuleName()
boolean	getTestLiterals()
boolean	isLexerAutoGenRule()
Lookahead	look(int k)
void	prepareForAnalysis()
void	removeTrackingOfRuleRefs(Grammar g) Walk the syntactic predicate and, for a rule ref R, remove the ref from the list of FOLLOW references for R (stored in the symbol table.
void	setAlternatives(Vector v)
void	setAutoGen(boolean doAutoGen_)
void	setDefaultErrorHandler(boolean value)
void	setEndElement(at.dms.compiler.tools.antlr.compiler.RuleEndElement re)
void	setInitAction(String initAction_)
void	setLabel(String label_)
void	setOption(Token key, Token value)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ruleName

protected String ruleName

argAction

protected String argAction

throwsSpec

protected String throwsSpec

returnAction

protected String returnAction

endNode

protected at.dms.compiler.tools.antlr.compiler.RuleEndElement endNode

testLiterals

protected boolean testLiterals

lock

protected boolean[] lock

cache

protected Lookahead[] cache

defaultErrorHandler

protected boolean defaultErrorHandler

ignoreRule

protected String ignoreRule

initAction

protected String initAction

alternatives

protected Vector alternatives

label

protected String label

alti

protected int alti

altj

protected int altj

analysisAlt

protected int analysisAlt

hasAnAction

protected boolean hasAnAction

hasASynPred

protected boolean hasASynPred

ID

protected int ID

nblks

protected static int nblks

doAutoGen

protected boolean doAutoGen

warnWhenFollowAmbig

protected boolean warnWhenFollowAmbig

generateAmbigWarnings

protected boolean generateAmbigWarnings

enclosingRuleName

protected String enclosingRuleName

grammar

protected Grammar grammar

line

protected int line

Constructor Detail

RuleBlock

public RuleBlock(Grammar g,
                 String r)

Construct a named rule.

RuleBlock

public RuleBlock(Grammar g,
                 String r,
                 int line)

Construct a named rule with line number information

Method Detail

addExceptionSpec

public void addExceptionSpec(at.dms.compiler.tools.antlr.compiler.ExceptionSpec ex)

findExceptionSpec

public at.dms.compiler.tools.antlr.compiler.ExceptionSpec findExceptionSpec(Token label)

findExceptionSpec

public at.dms.compiler.tools.antlr.compiler.ExceptionSpec findExceptionSpec(String label)

generate

public void generate(JavaCodeGenerator generator)

getDefaultErrorHandler

public boolean getDefaultErrorHandler()

getEndElement

public at.dms.compiler.tools.antlr.compiler.RuleEndElement getEndElement()

getIgnoreRule

public String getIgnoreRule()

getRuleName

public String getRuleName()

getTestLiterals

public boolean getTestLiterals()

isLexerAutoGenRule

public boolean isLexerAutoGenRule()

look

public Lookahead look(int k)

prepareForAnalysis

public void prepareForAnalysis()

setDefaultErrorHandler

public void setDefaultErrorHandler(boolean value)

setEndElement

public void setEndElement(at.dms.compiler.tools.antlr.compiler.RuleEndElement re)

setOption

public void setOption(Token key,
                      Token value)

toString

public String toString()

addAlternative

public void addAlternative(at.dms.compiler.tools.antlr.compiler.Alternative alt)

getAlternativeAt

public at.dms.compiler.tools.antlr.compiler.Alternative getAlternativeAt(int i)

getAlternatives

public Vector getAlternatives()

getAutoGen

public boolean getAutoGen()

getInitAction

public String getInitAction()

getLabel

public String getLabel()

removeTrackingOfRuleRefs

public void removeTrackingOfRuleRefs(Grammar g)

Walk the syntactic predicate and, for a rule ref R, remove the ref from the list of FOLLOW references for R (stored in the symbol table.

setAlternatives

public void setAlternatives(Vector v)

setAutoGen

public void setAutoGen(boolean doAutoGen_)

setInitAction

public void setInitAction(String initAction_)

setLabel

public void setLabel(String label_)

getLine

public int getLine()