Mercurial > pub > ImplabNet

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

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
children d82909310094
comparison
equal deleted inserted replaced
247:fb70574741a1 248:5cb4826c2c2a
1 using System;
2
3 namespace Implab
4 {
5 public struct RejectedPromise<T> : IPromise<T> {
6 readonly Exception m_reason;
7
8 public Type ResultType => typeof(void);
9
10 public bool IsResolved => true;
11
12 public bool IsRejected => true;
13
14 public bool IsFulfilled => false;
15
16 public Exception RejectReason => m_reason;
17
18 public RejectedPromise(Exception reason) {
19 m_reason = reason;
20 }
21
22 public IPromise<T2> Cast<T2>() {
23 return (IPromise<T2>)(IPromise<T>)this;
24 }
25
26 void IPromise.Join() {
27 m_reason.ThrowInvocationException();
28 }
29
30 void IPromise.Join(int timeout) {
31 m_reason.ThrowInvocationException();
32 }
33
34 public T Join() {
35 m_reason.ThrowInvocationException();
36 throw new Exception(); // unreachable code
37 }
38
39 public T Join(int timeout) {
40 m_reason.ThrowInvocationException();
41 throw new Exception(); // unreachable code
42 }
43
44 public void Then(IResolvable next) {
45 next.Reject(m_reason);
46 }
47
48 public void Then(IResolvable<T> next) {
49 next.Reject(m_reason);
50 }
51 }
52 }