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comparison Implab/TaskHelpers.cs @ 251:7c7e9ad6fe4a v3

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Prerelease version of RunnableComponent Added draft messaging interfaces Added more more helpers to Xml/SerializationHelpers
author cin
date Sun, 11 Feb 2018 00:49:51 +0300
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250:9f63dade3a40 251:7c7e9ad6fe4a
1 using System;
2 using System.Threading.Tasks;
3
4 namespace Implab {
5 public static class TaskHelpers {
6
7 public static async Task Then(this Task that, Action fulfilled, Action<Exception> rejected) {
8 Safe.ArgumentNotNull(that, nameof(that));
9 if (rejected != null) {
10 try {
11 await that;
12 } catch (Exception e) {
13 rejected(e);
14 return;
15 }
16 } else {
17 await that;
18 }
19
20 if (fulfilled != null)
21 fulfilled();
22 }
23
24 public static async Task Then(this Task that, Action fulfilled) {
25 Safe.ArgumentNotNull(that, nameof(that));
26 await that;
27 if (fulfilled != null)
28 fulfilled();
29 }
30
31 public static async Task Then(this Task that, Func<Task> fulfilled) {
32 Safe.ArgumentNotNull(that, nameof(that));
33 await that;
34 if (fulfilled != null)
35 await fulfilled();
36 }
37
38 public static async Task Finally(this Task that, Action handler) {
39 Safe.ArgumentNotNull(that, nameof(that));
40 try {
41 await that;
42 } finally {
43 if (handler != null)
44 handler();
45 }
46 }
47
48 public static async void Then(this Task that, IResolvable next) {
49 try {
50 await that;
51 } catch (Exception e) {
52 next.Reject(e);
53 return;
54 }
55 next.Resolve();
56 }
57
58 public static async void Then<T>(this Task<T> that, IResolvable<T> next) {
59 T result;
60 try {
61 result = await that;
62 } catch (Exception e) {
63 next.Reject(e);
64 return;
65 }
66 next.Resolve(result);
67 }
68
69 }
70 }