async-constructor/lib/es2015/append.js

The helper functions for creating classes that require asynchronous constructors.

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.appendAsyncConstructor = void 0;
const extra_promise_1 = require("extra-promise");
function appendAsyncConstructor(target, asyncConstructor, args) {
    function applyAsyncConstructor() {
        return __awaiter(this, void 0, void 0, function* () {
            yield Promise.resolve();
            yield Reflect.apply(asyncConstructor, target, args !== null && args !== void 0 ? args : []);
            delete target.then;
            return target;
        });
    }
    if ((0, extra_promise_1.isPromiseLike)(target)) {
        setThenMethod(target, Promise.resolve(target).then(applyAsyncConstructor));
    }
    else {
        setThenMethod(target, applyAsyncConstructor());
    }
}
exports.appendAsyncConstructor = appendAsyncConstructor;
function setThenMethod(target, promise) {
    target.then = promise.then.bind(promise);
}
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