public static class SemanticContext.Predicate extends SemanticContext
SemanticContext.AND, SemanticContext.Operator, SemanticContext.OR, SemanticContext.PrecedencePredicate, SemanticContext.Predicate
Modifier and Type | Field and Description |
---|---|
boolean |
isCtxDependent |
int |
predIndex |
int |
ruleIndex |
NONE
Modifier | Constructor and Description |
---|---|
protected |
SemanticContext.Predicate() |
|
SemanticContext.Predicate(int ruleIndex,
int predIndex,
boolean isCtxDependent) |
Modifier and Type | Method and Description |
---|---|
boolean |
equals(java.lang.Object obj) |
boolean |
eval(Recognizer<?,?> parser,
RuleContext parserCallStack)
For context independent predicates, we evaluate them without a local
context (i.e., null context).
|
int |
hashCode() |
java.lang.String |
toString() |
and, evalPrecedence, or
public final int ruleIndex
public final int predIndex
public final boolean isCtxDependent
protected SemanticContext.Predicate()
public SemanticContext.Predicate(int ruleIndex, int predIndex, boolean isCtxDependent)
public boolean eval(Recognizer<?,?> parser, RuleContext parserCallStack)
SemanticContext
For context dependent predicates, we must pass in a local context so that references such as $arg evaluate properly as _localctx.arg. We only capture context dependent predicates in the context in which we begin prediction, so we passed in the outer context here in case of context dependent predicate evaluation.
eval
in class SemanticContext
public int hashCode()
hashCode
in class java.lang.Object
public boolean equals(java.lang.Object obj)
equals
in class java.lang.Object
public java.lang.String toString()
toString
in class java.lang.Object