Package org.antlr.analysis

Class SemanticContext.AND

java.lang.Object

org.antlr.analysis.SemanticContext

org.antlr.analysis.SemanticContext.AND

Enclosing class:

SemanticContext

public static class SemanticContext.AND
extends SemanticContext

Nested Class Summary

Nested classes/interfaces inherited from class org.antlr.analysis.SemanticContext

SemanticContext.AND, SemanticContext.NOT, SemanticContext.OR, SemanticContext.Predicate, SemanticContext.TruePredicate

Field Summary

Fields

Modifier and Type	Field	Description
protected SemanticContext	left
protected SemanticContext	right

Fields inherited from class org.antlr.analysis.SemanticContext

EMPTY_SEMANTIC_CONTEXT

Constructor Summary

Constructors

Constructor	Description
AND(SemanticContext a, SemanticContext b)

Method Summary

Modifier and Type	Method	Description
org.antlr.stringtemplate.StringTemplate	genExpr(CodeGenerator generator, org.antlr.stringtemplate.StringTemplateGroup templates, DFA dfa)	Generate an expression that will evaluate the semantic context, given a set of output templates.
SemanticContext	getGatedPredicateContext()	Given a semantic context expression tree, return a tree with all nongated predicates set to true and then reduced.
boolean	isSyntacticPredicate()
java.lang.String	toString()
void	trackUseOfSyntacticPredicates(Grammar g)	Notify the indicated grammar of any syn preds used within this context

Methods inherited from class org.antlr.analysis.SemanticContext

and, not, or

Methods inherited from class java.lang.Object

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

Field Detail

left

protected SemanticContext left

right

protected SemanticContext right

Constructor Detail

AND

public AND(SemanticContext a,
           SemanticContext b)

Method Detail

genExpr

public org.antlr.stringtemplate.StringTemplate genExpr(CodeGenerator generator,
                                                       org.antlr.stringtemplate.StringTemplateGroup templates,
                                                       DFA dfa)

Description copied from class: SemanticContext

Generate an expression that will evaluate the semantic context, given a set of output templates.

Specified by:

genExpr in class SemanticContext

getGatedPredicateContext

public SemanticContext getGatedPredicateContext()

Description copied from class: SemanticContext

Given a semantic context expression tree, return a tree with all nongated predicates set to true and then reduced. So p&&(q||r) would return p&&r if q is nongated but p and r are gated.

Specified by:

getGatedPredicateContext in class SemanticContext

isSyntacticPredicate

public boolean isSyntacticPredicate()

Specified by:

isSyntacticPredicate in class SemanticContext

trackUseOfSyntacticPredicates

public void trackUseOfSyntacticPredicates(Grammar g)

Description copied from class: SemanticContext

Notify the indicated grammar of any syn preds used within this context

Overrides:

trackUseOfSyntacticPredicates in class SemanticContext

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object