org.antlr.analysis

Class SemanticContext.OR

java.lang.Object

org.antlr.analysis.SemanticContext

org.antlr.analysis.SemanticContext.OR

Enclosing class:

SemanticContext

public static class SemanticContext.OR
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 and Description
protected java.util.Set	operands

Fields inherited from class org.antlr.analysis.SemanticContext

EMPTY_SEMANTIC_CONTEXT

Constructor Summary

Constructors

Constructor and Description
SemanticContext.OR(SemanticContext a, SemanticContext b)

Method Summary

Methods

Modifier and Type	Method and 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

operands

protected java.util.Set operands

Constructor Detail

SemanticContext.OR

public SemanticContext.OR(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