antlr
Class TreeElement

java.lang.Object
  |
  +--antlr.GrammarElement
        |
        +--antlr.AlternativeElement
              |
              +--antlr.AlternativeBlock
                    |
                    +--antlr.TreeElement

class TreeElement

extends AlternativeBlock

A TreeElement is a block with one alternative and a root node

Field Summary

protected Vector	alternatives
protected int	alti
protected int	altj
protected int	analysisAlt
static int	AUTO_GEN_BANG
static int	AUTO_GEN_CARET
static int	AUTO_GEN_NONE
protected int	autoGenType
protected boolean	doAutoGen
protected java.lang.String	enclosingRuleName
protected boolean	generateAmbigWarnings
protected Grammar	grammar
(package private) boolean	greedy
(package private) boolean	greedySet
protected boolean	hasAnAction
protected boolean	hasASynPred
protected int	ID
protected java.lang.String	initAction
protected java.lang.String	label
protected int	line
protected static int	nblks
(package private) AlternativeElement	next
(package private) boolean	not
(package private) GrammarAtom	root
protected boolean	warnWhenFollowAmbig

Constructor Summary

TreeElement(Grammar g, int line)

Method Summary

void	addAlternative(Alternative alt)
void	generate()
Alternative	getAlternativeAt(int i)
Vector	getAlternatives()
boolean	getAutoGen()
int	getAutoGenType()
java.lang.String	getInitAction()
java.lang.String	getLabel()
int	getLine()
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	setInitAction(java.lang.String initAction_)
void	setLabel(java.lang.String label_)
void	setOption(Token key, Token value)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

root

GrammarAtom root

initAction

protected java.lang.String initAction

alternatives

protected Vector alternatives

label

protected java.lang.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

not

boolean not

greedy

boolean greedy

greedySet

boolean greedySet

doAutoGen

protected boolean doAutoGen

warnWhenFollowAmbig

protected boolean warnWhenFollowAmbig

generateAmbigWarnings

protected boolean generateAmbigWarnings

next

AlternativeElement next

autoGenType

protected int autoGenType

enclosingRuleName

protected java.lang.String enclosingRuleName

AUTO_GEN_NONE

public static final int AUTO_GEN_NONE

See Also:

Constant Field Values

AUTO_GEN_CARET

public static final int AUTO_GEN_CARET

See Also:

Constant Field Values

AUTO_GEN_BANG

public static final int AUTO_GEN_BANG

See Also:

Constant Field Values

grammar

protected Grammar grammar

line

protected int line

Constructor Detail

TreeElement

public TreeElement(Grammar g,
                   int line)

Method Detail

generate

public void generate()

Overrides:

generate in class AlternativeBlock

look

public Lookahead look(int k)

Overrides:

look in class AlternativeBlock

toString

public java.lang.String toString()

Overrides:

toString in class AlternativeBlock

addAlternative

public void addAlternative(Alternative alt)

getAlternativeAt

public Alternative getAlternativeAt(int i)

getAlternatives

public Vector getAlternatives()

getAutoGen

public boolean getAutoGen()

getInitAction

public java.lang.String getInitAction()

getLabel

public java.lang.String getLabel()

Overrides:

getLabel in class AlternativeElement

prepareForAnalysis

public void prepareForAnalysis()

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(java.lang.String initAction_)

setLabel

public void setLabel(java.lang.String label_)

Overrides:

setLabel in class AlternativeElement

setOption

public void setOption(Token key,
                      Token value)

getAutoGenType

public int getAutoGenType()

getLine

public int getLine()