56 lines
3.6 KiB
JavaScript
56 lines
3.6 KiB
JavaScript
"use strict";
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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const util = require("util");
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class Deferred {
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constructor() {
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this.promise = new Promise((resolve, reject) => {
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this.resolve = resolve;
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this.reject = reject;
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this.status = 'pending';
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});
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}
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}
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exports.Deferred = Deferred;
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exports.defer = () => {
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return new Deferred();
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};
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/**
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* Creates a new resolved promise for the provided value.
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*/
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exports.resolvedPromise = (value) => {
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return Promise.resolve(value);
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};
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/**
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* Creates a new rejected promise for the provided reason.
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*/
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exports.rejectedPromise = err => {
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return Promise.reject(err);
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};
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exports.promisify = util.promisify;
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// polyfill
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if (!exports.promisify) {
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exports.promisify = require('util.promisify');
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}
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exports.map = (inputArg, functionArg) => __awaiter(this, void 0, void 0, function* () {
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let promisifedFunction = exports.promisify(functionArg);
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let promiseArray = [];
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let resultArray = [];
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for (let item of inputArg) {
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let promise = promisifedFunction(item);
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promiseArray.push(promise);
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promise.then(x => {
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resultArray.push(x);
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});
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}
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yield Promise.all(promiseArray);
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return resultArray;
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});
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