/opt/canhelp/node_modules/gel/dist/primitives
Edit: /opt/canhelp/node_modules/gel/dist/primitives/queues.js (2292B)
"use strict";
/*!
* This source file is part of the Gel open source project.
*
* Copyright 2020-present MagicStack Inc. and the Gel authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.LifoQueue = void 0;
const errors_1 = require("../errors");
class LifoQueue {
_promises;
_resolvers;
_rejecters;
constructor() {
this._resolvers = [];
this._rejecters = [];
this._promises = [];
}
_add() {
this._promises.push(new Promise((resolve, reject) => {
this._resolvers.push(resolve);
this._rejecters.push(reject);
}));
}
push(item) {
if (!this._resolvers.length) {
this._add();
}
const resolve = this._resolvers.shift();
this._rejecters.shift();
if (!resolve) {
throw new errors_1.InternalClientError("resolve function was null or undefined when attempting to push.");
}
resolve(item);
}
get() {
if (!this._promises.length) {
this._add();
}
const promise = this._promises.pop();
if (!promise) {
throw new errors_1.InternalClientError("promise was null or undefined when attempting to get.");
}
return promise;
}
cancelAllPending(err) {
const rejecters = this._rejecters;
this._rejecters = [];
this._resolvers = [];
for (const reject of rejecters) {
reject(err);
}
}
get length() {
return this._promises.length - this._resolvers.length;
}
get pending() {
return Math.max(0, this._resolvers.length - this._promises.length);
}
}
exports.LifoQueue = LifoQueue;