angular2/es6/dev/src/facade/promise.js

Angular 2 - a web framework for modern web apps

export class PromiseCompleter {
    constructor() {
        this.promise = new Promise((res, rej) => {
            this.resolve = res;
            this.reject = rej;
        });
    }
}
export class PromiseWrapper {
    static resolve(obj) { return Promise.resolve(obj); }
    static reject(obj, _) { return Promise.reject(obj); }
    // Note: We can't rename this method into `catch`, as this is not a valid
    // method name in Dart.
    static catchError(promise, onError) {
        return promise.catch(onError);
    }
    static all(promises) {
        if (promises.length == 0)
            return Promise.resolve([]);
        return Promise.all(promises);
    }
    static then(promise, success, rejection) {
        return promise.then(success, rejection);
    }
    static wrap(computation) {
        return new Promise((res, rej) => {
            try {
                res(computation());
            }
            catch (e) {
                rej(e);
            }
        });
    }
    static scheduleMicrotask(computation) {
        PromiseWrapper.then(PromiseWrapper.resolve(null), computation, (_) => { });
    }
    static isPromise(obj) { return obj instanceof Promise; }
    static completer() { return new PromiseCompleter(); }
}
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