annotate Implab/PromiseActionReaction.cs @ 254:12c00235b105 v3

Добавлена метка v3.0.1-beta для набора изменений 34df34841225
author cin
date Mon, 12 Feb 2018 17:03:49 +0300
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1 using System;
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2 using System.Diagnostics;
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3
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4 namespace Implab {
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5 class PromiseActionReaction : IResolvable {
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7 readonly Deferred m_next;
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8
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9 readonly IDispatcher m_dispatcher;
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10
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11 readonly Action<Deferred> m_fulfilled;
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12
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13 readonly Action<Exception, Deferred> m_rejected;
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14
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15 public IPromise Promise {
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16 get { return m_next.Promise; }
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17 }
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18
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19 public PromiseActionReaction(Action<Deferred> fulfilled, Action<Exception, Deferred> rejected, Deferred next, IDispatcher dispatcher) {
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20 m_next = next;
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21 m_fulfilled = fulfilled;
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22 m_rejected = rejected;
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23 m_dispatcher = dispatcher;
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24 }
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25
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26 public void Resolve() {
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27 if (m_fulfilled != null) {
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28 if (m_dispatcher != null)
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29 m_dispatcher.Enqueue(ResolveImpl);
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30 else
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31 ResolveImpl();
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32 } else {
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33 m_next.Resolve();
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34 }
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35 }
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36
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37 void ResolveImpl() {
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38 m_fulfilled(m_next);
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39 }
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40
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41 public void Reject(Exception error) {
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42 if (m_fulfilled != null) {
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43 if (m_dispatcher != null)
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44 m_dispatcher.Enqueue(RejectImpl, error);
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45 else
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46 RejectImpl(error);
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47 } else {
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48 m_next.Reject(error);
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49 }
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50 }
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51
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52 void RejectImpl(Exception error) {
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53 m_rejected(error, m_next);
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54 }
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55
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56 public static PromiseActionReaction Create(Action fulfilled, Action<Exception> rejected, IDispatcher dispatcher) {
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57 return new PromiseActionReaction(
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58 fulfilled != null ? PromiseHandler.Create(fulfilled) : null,
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59 rejected != null ? PromiseHandler.Create(rejected) : null,
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60 new Deferred(),
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61 dispatcher
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62 );
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63 }
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64
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65 public static PromiseActionReaction Create(Func<IPromise> fulfilled, Action<Exception> rejected, IDispatcher dispatcher) {
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66 return new PromiseActionReaction(
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67 fulfilled != null ? PromiseHandler.Create(fulfilled) : null,
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68 rejected != null ? PromiseHandler.Create(rejected) : null,
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69 new Deferred(),
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70 dispatcher
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71 );
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72 }
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74 public static PromiseActionReaction Create(Action fulfilled, Func<Exception, IPromise> rejected, IDispatcher dispatcher) {
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75 return new PromiseActionReaction(
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76 fulfilled != null ? PromiseHandler.Create(fulfilled) : null,
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77 rejected != null ? PromiseHandler.Create(rejected) : null,
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78 new Deferred(),
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79 dispatcher
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80 );
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81 }
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82
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83 public static PromiseActionReaction Create(Func<IPromise> fulfilled, Func<Exception, IPromise> rejected, IDispatcher dispatcher) {
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84 return new PromiseActionReaction(
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85 fulfilled != null ? PromiseHandler.Create(fulfilled) : null,
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86 rejected != null ? PromiseHandler.Create(rejected) : null,
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87 new Deferred(),
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88 dispatcher
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89 );
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90 }
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91 }
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92 }