93 lines
2.8 KiB
JavaScript
93 lines
2.8 KiB
JavaScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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'use strict';
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class ValueUUID {
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_value;
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constructor(_value) {
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this._value = _value;
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// empty
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}
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asHex() {
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return this._value;
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}
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equals(other) {
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return this.asHex() === other.asHex();
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}
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}
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class V4UUID extends ValueUUID {
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static _chars = ['0', '1', '2', '3', '4', '5', '6', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'];
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static _timeHighBits = ['8', '9', 'a', 'b'];
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static _oneOf(array) {
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return array[Math.floor(array.length * Math.random())];
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}
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static _randomHex() {
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return V4UUID._oneOf(V4UUID._chars);
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}
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constructor() {
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super([
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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'-',
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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'-',
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'4',
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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'-',
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V4UUID._oneOf(V4UUID._timeHighBits),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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'-',
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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V4UUID._randomHex(),
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].join(''));
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}
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}
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/**
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* An empty UUID that contains only zeros.
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*/
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export const empty = new ValueUUID('00000000-0000-0000-0000-000000000000');
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export function v4() {
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return new V4UUID();
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}
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const _UUIDPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
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export function isUUID(value) {
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return _UUIDPattern.test(value);
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}
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/**
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* Parses a UUID that is of the format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.
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* @param value A uuid string.
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*/
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export function parse(value) {
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if (!isUUID(value)) {
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throw new Error('invalid uuid');
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}
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return new ValueUUID(value);
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}
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export function generateUuid() {
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return v4().asHex();
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}
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//# sourceMappingURL=uuid.js.map
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