40 lines
1.8 KiB
TypeScript
40 lines
1.8 KiB
TypeScript
/*!
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* Copyright 2016 The ANTLR Project. All rights reserved.
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* Licensed under the BSD-3-Clause license. See LICENSE file in the project root for license information.
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*/
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import { DecisionEventInfo } from "./DecisionEventInfo";
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import { SimulatorState } from "./SimulatorState";
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import { TokenStream } from "../TokenStream";
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/**
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* This class represents profiling event information for a context sensitivity.
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* Context sensitivities are decisions where a particular input resulted in an
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* SLL conflict, but LL prediction produced a single unique alternative.
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*
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* In some cases, the unique alternative identified by LL prediction is not
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* equal to the minimum represented alternative in the conflicting SLL
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* configuration set. Grammars and inputs which result in this scenario are
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* unable to use {@link PredictionMode#SLL}, which in turn means they cannot use
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* the two-stage parsing strategy to improve parsing performance for that
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* input.
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*
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* @see ParserATNSimulator#reportContextSensitivity
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* @see ParserErrorListener#reportContextSensitivity
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*
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* @since 4.3
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*/
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export declare class ContextSensitivityInfo extends DecisionEventInfo {
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/**
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* Constructs a new instance of the {@link ContextSensitivityInfo} class
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* with the specified detailed context sensitivity information.
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*
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* @param decision The decision number
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* @param state The final simulator state containing the unique
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* alternative identified by full-context prediction
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* @param input The input token stream
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* @param startIndex The start index for the current prediction
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* @param stopIndex The index at which the context sensitivity was
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* identified during full-context prediction
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*/
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constructor(decision: number, state: SimulatorState, input: TokenStream, startIndex: number, stopIndex: number);
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}
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