antlr4-runtime/src/antlr4/transition/PrecedencePredicateTransition.js

JavaScript runtime for ANTLR4

/* Copyright (c) 2012-2022 The ANTLR Project Contributors. All rights reserved.
 * Use is of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */
import PrecedencePredicate from "../atn/PrecedencePredicate.js";
import Transition from "./Transition.js";
import AbstractPredicateTransition from "../atn/AbstractPredicateTransition.js";

export default class PrecedencePredicateTransition extends AbstractPredicateTransition {
    constructor(target, precedence) {
        super(target);
        this.serializationType = Transition.PRECEDENCE;
        this.precedence = precedence;
        this.isEpsilon = true;
    }

    matches(symbol, minVocabSymbol, maxVocabSymbol) {
        return false;
    }

    getPredicate() {
        return new PrecedencePredicate(this.precedence);
    }

    toString() {
        return this.precedence + " >= _p";
    }
}