antlr4ts/misc/UUID.js

ANTLR 4 runtime for JavaScript written in Typescript

"use strict";
/*!
 * 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.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.UUID = void 0;
const MurmurHash_1 = require("./MurmurHash");
class UUID {
    constructor(mostSigBits, moreSigBits, lessSigBits, leastSigBits) {
        this.data = new Uint32Array(4);
        this.data[0] = mostSigBits;
        this.data[1] = moreSigBits;
        this.data[2] = lessSigBits;
        this.data[3] = leastSigBits;
    }
    static fromString(data) {
        if (!/^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$/.test(data)) {
            throw new Error("Incorrectly formatted UUID");
        }
        let segments = data.split("-");
        let mostSigBits = parseInt(segments[0], 16);
        let moreSigBits = ((parseInt(segments[1], 16) << 16) >>> 0) + parseInt(segments[2], 16);
        let lessSigBits = ((parseInt(segments[3], 16) << 16) >>> 0) + parseInt(segments[4].substr(0, 4), 16);
        let leastSigBits = parseInt(segments[4].substr(-8), 16);
        return new UUID(mostSigBits, moreSigBits, lessSigBits, leastSigBits);
    }
    hashCode() {
        return MurmurHash_1.MurmurHash.hashCode([this.data[0], this.data[1], this.data[2], this.data[3]]);
    }
    equals(obj) {
        if (obj === this) {
            return true;
        }
        else if (!(obj instanceof UUID)) {
            return false;
        }
        return this.data[0] === obj.data[0]
            && this.data[1] === obj.data[1]
            && this.data[2] === obj.data[2]
            && this.data[3] === obj.data[3];
    }
    toString() {
        return ("00000000" + this.data[0].toString(16)).substr(-8)
            + "-" + ("0000" + (this.data[1] >>> 16).toString(16)).substr(-4)
            + "-" + ("0000" + this.data[1].toString(16)).substr(-4)
            + "-" + ("0000" + (this.data[2] >>> 16).toString(16)).substr(-4)
            + "-" + ("0000" + this.data[2].toString(16)).substr(-4)
            + ("00000000" + this.data[3].toString(16)).substr(-8);
    }
}
exports.UUID = UUID;
//# sourceMappingURL=UUID.js.map