/*!
 * Copyright 2016 The ANTLR Project. All rights reserved.
 * Licensed under the BSD-3-Clause license. See LICENSE file in the project root for license information.
 */

// ConvertTo-TS run at 2016-10-04T11:26:35.1914305-07:00

import { DecisionEventInfo } from "./DecisionEventInfo";
import { NotNull } from "../Decorators";
import { SemanticContext } from "./SemanticContext";
import { SimulatorState } from "./SimulatorState";
import { TokenStream } from "../TokenStream";

/**
 * This class represents profiling event information for semantic predicate
 * evaluations which occur during prediction.
 *
 * @see ParserATNSimulator#evalSemanticContext
 *
 * @since 4.3
 */
export class PredicateEvalInfo extends DecisionEventInfo {
	/**
	 * The semantic context which was evaluated.
	 */
	public semctx: SemanticContext;
	/**
	 * 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}.
	 */
	public predictedAlt: number;
	/**
	 * The result of evaluating the semantic context {@link #semctx}.
	 */
	public evalResult: boolean;

	/**
	 * Constructs a new instance of the {@link PredicateEvalInfo} class with the
	 * specified detailed predicate evaluation information.
	 *
	 * @param state The simulator state
	 * @param decision The decision number
	 * @param input The input token stream
	 * @param startIndex The start index for the current prediction
	 * @param stopIndex The index at which the predicate evaluation was
	 * triggered. Note that the input stream may be reset to other positions for
	 * the actual evaluation of individual predicates.
	 * @param semctx The semantic context which was evaluated
	 * @param evalResult The results of evaluating the semantic context
	 * @param predictedAlt The alternative number for the decision which is
	 * guarded by the semantic context `semctx`. See {@link #predictedAlt}
	 * for more information.
	 *
	 * @see ParserATNSimulator#evalSemanticContext(SemanticContext, ParserRuleContext, int)
	 * @see SemanticContext#eval(Recognizer, RuleContext)
	 */
	constructor(
		@NotNull state: SimulatorState,
		decision: number,
		@NotNull input: TokenStream,
		startIndex: number,
		stopIndex: number,
		@NotNull semctx: SemanticContext,
		evalResult: boolean,
		predictedAlt: number) {

		super(decision, state, input, startIndex, stopIndex, state.useContext);
		this.semctx = semctx;
		this.evalResult = evalResult;
		this.predictedAlt = predictedAlt;
	}
}