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comparison Implab/Deferred`1.cs @ 248:5cb4826c2c2a v3

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Added awaiters to promises Added static methods to Promise Resolve, Reject, All. Updated promise helpers
author cin
date Tue, 30 Jan 2018 01:37:17 +0300
parents 5aa9cfbe56c3
children d82909310094
comparison
equal deleted inserted replaced
247:fb70574741a1 248:5cb4826c2c2a
1 using System; 1 using System;
2 using System.Diagnostics; 2 using System.Diagnostics;
3 3
4 namespace Implab { 4 namespace Implab {
5 public class Deferred<T> : IResolvable<T> { 5 public class Deferred<T> : IResolvable<T> {
6 readonly AbstractPromise<T> m_promise; 6 readonly Promise<T> m_promise;
7 readonly IDispatcher m_dispatcher; 7 readonly IDispatcher m_dispatcher;
8 8
9 internal Deferred(AbstractPromise<T> promise, IDispatcher dispatcher) { 9 internal Deferred(IDispatcher dispatcher) : this(new Promise<T>(), dispatcher) {
10 }
11
12 internal Deferred(Promise<T> promise, IDispatcher dispatcher) {
10 Debug.Assert(promise != null); 13 Debug.Assert(promise != null);
11 m_promise = promise; 14 m_promise = promise;
12 m_dispatcher = dispatcher; 15 m_dispatcher = dispatcher;
13 } 16 }
14 17
15 public IPromise<T> Promise { 18 public IPromise<T> Promise {
16 get { return m_promise; } 19 get { return m_promise; }
17 } 20 }
18 21
19 public void Reject(Exception error) { 22 public void Reject(Exception error) {
20 m_promise.Reject(error); 23 if (error is PromiseTransientException)
24 error = ((PromiseTransientException)error).InnerException;
25
26 m_promise.RejectPromise(error);
21 } 27 }
22 28
23 public void Resolve(T value) { 29 public void Resolve(T value) {
24 m_promise.Resolve(value); 30 m_promise.ResolvePromise(value);
25 } 31 }
26 32
27 public void Resolve(IPromise<T> thenable) { 33 public void Resolve(IPromise<T> thenable) {
28 if (thenable == null) 34 if (thenable == null)
29 Reject(new Exception("The promise or task are expected")); 35 Reject(new Exception("The promise or task are expected"));
30 if (thenable == m_promise) 36 if (thenable == m_promise)
31 Reject(new Exception("The promise cannot be resolved with oneself")); 37 Reject(new Exception("The promise cannot be resolved with oneself"));
32 38
33 else if (m_dispatcher != null) 39 else if (m_dispatcher != null)
34 // dispatch (see ecma-262/6.0: 25.4.1.3.2 Promise Resolve Functions) 40 // dispatch (see ecma-262/6.0: 25.4.1.3.2 Promise Resolve Functions)
35 m_dispatcher.Enqueue(() => Chain(thenable)); 41 m_dispatcher.Enqueue(Chain, thenable);
36 else 42 else
37 Chain(thenable); 43 Chain(thenable);
38 } 44 }
39 45
40 void Chain(IPromise<T> thenable) { 46 void Chain(IPromise<T> thenable) {