PredicateEvalInfo

This class represents profiling event information for semantic predicate evaluations which occur during prediction.

@see ParserATNSimulator#evalSemanticContext

@since 4.3

class PredicateEvalInfo : DecisionEventInfo {

SemanticContext semctx;

int predictedAlt;

bool evalResult;

this(int decision, TokenStream input, size_t startIndex, size_t stopIndex, SemanticContext semctx, bool evalResult, int predictedAlt, bool fullCtx);

}

Constructors

this this(int decision, TokenStream input, size_t startIndex, size_t stopIndex, SemanticContext semctx, bool evalResult, int predictedAlt, bool fullCtx): Constructs a new instance of the {@link PredicateEvalInfo} class with the specified detailed predicate evaluation information.

Members

Variables

evalResult bool evalResult;: The result of evaluating the semantic context {@link #semctx}.
predictedAlt int predictedAlt;: The alternative number for the decision which is guarded by the semantic context {@link #semctx}. Note that other ATN configurations may predict the same alternative which are guarded by other semantic contexts and/or {@link SemanticContext#NONE}.
semctx SemanticContext semctx;: The semantic context which was evaluated.

Inherited Members

From DecisionEventInfo

decision int decision;: The invoked decision number which this event is related to.
configs ATNConfigSet configs;: The configuration set containing additional information relevant to the prediction state when the current event occurred, or {@code null} if no additional information is relevant or available.
input TokenStream input;: The input token stream which is being parsed.
startIndex size_t startIndex;: Undocumented in source.
stopIndex size_t stopIndex;: Undocumented in source.
fullCtx bool fullCtx;: {@code true} if the current event occurred during LL prediction; otherwise, {@code false} if the input occurred during SLL prediction.

Meta

Source

See Implementation

antlr v4 runtime atn PredicateEvalInfo modules