69 lines
2.7 KiB
JavaScript
69 lines
2.7 KiB
JavaScript
"use strict";
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/*!
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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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var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
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var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
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return c > 3 && r && Object.defineProperty(target, key, r), r;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.ConflictInfo = void 0;
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const Decorators_1 = require("../Decorators");
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const Utils = require("../misc/Utils");
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/**
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* This class stores information about a configuration conflict.
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*
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* @author Sam Harwell
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*/
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class ConflictInfo {
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constructor(conflictedAlts, exact) {
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this._conflictedAlts = conflictedAlts;
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this.exact = exact;
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}
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/**
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* Gets the set of conflicting alternatives for the configuration set.
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*/
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get conflictedAlts() {
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return this._conflictedAlts;
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}
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/**
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* Gets whether or not the configuration conflict is an exact conflict.
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* An exact conflict occurs when the prediction algorithm determines that
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* the represented alternatives for a particular configuration set cannot be
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* further reduced by consuming additional input. After reaching an exact
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* conflict during an SLL prediction, only switch to full-context prediction
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* could reduce the set of viable alternatives. In LL prediction, an exact
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* conflict indicates a true ambiguity in the input.
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*
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* For the {@link PredictionMode#LL_EXACT_AMBIG_DETECTION} prediction mode,
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* accept states are conflicting but not exact are treated as non-accept
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* states.
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*/
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get isExact() {
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return this.exact;
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}
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equals(obj) {
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if (obj === this) {
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return true;
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}
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else if (!(obj instanceof ConflictInfo)) {
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return false;
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}
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return this.isExact === obj.isExact
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&& Utils.equals(this.conflictedAlts, obj.conflictedAlts);
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}
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hashCode() {
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return this.conflictedAlts.hashCode();
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}
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}
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__decorate([
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Decorators_1.Override
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], ConflictInfo.prototype, "equals", null);
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__decorate([
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Decorators_1.Override
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], ConflictInfo.prototype, "hashCode", null);
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exports.ConflictInfo = ConflictInfo;
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//# sourceMappingURL=ConflictInfo.js.map
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