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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 PromiseHandler {
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6 public static Action<T> Create<T>(Action<T> handler, Deferred next) {
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7 Debug.Assert(handler != null);
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8
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9 return (v) => {
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10 try {
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11 handler(v);
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12 next.Resolve();
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13 } catch (Exception err) {
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14 next.Reject(err);
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15 }
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16 };
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17 }
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18
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19 public static Action<T> Create<T>(Func<T, IPromise> handler, Deferred next) {
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20 Debug.Assert(handler != null);
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21
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22 return (v) => {
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23 try {
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24 next.Resolve(handler(v));
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25 } catch (Exception err) {
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26 next.Reject(err);
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27 }
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28 };
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29 }
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30
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31 public static Action<T> Create<T, T2>(Func<T, T2> handler, Deferred<T2> next) {
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32 Debug.Assert(handler != null);
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33
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34 return (v) => {
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35 try {
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36 next.Resolve(handler(v));
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37 } catch (Exception err) {
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38 next.Reject(err);
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39 }
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40 };
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41 }
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42
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43 public static Action<T> Create<T, T2>(Func<T, IPromise<T2>> handler, Deferred<T2> next) {
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44 Debug.Assert(handler != null);
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45 return (v) => {
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46 try {
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47 next.Resolve(handler(v));
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48 } catch (Exception err) {
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49 next.Reject(err);
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50 }
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51 };
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52 }
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53
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54 public static Action Create(Action handler, Deferred next) {
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55 Debug.Assert(handler != null);
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56
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57 return () => {
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58 try {
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59 handler();
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60 next.Resolve();
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61 } catch (Exception err) {
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62 next.Reject(err);
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63 }
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64 };
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65 }
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66
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67 public static Action Create(Func<IPromise> handler, Deferred next) {
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68 Debug.Assert(handler != null);
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69
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70 return () => {
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71 try {
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72 next.Resolve(handler());
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73 } catch (Exception err) {
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74 next.Reject(err);
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75 }
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76 };
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77 }
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78
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79 public static Action Create<T2>(Func<T2> handler, Deferred<T2> next) {
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80 Debug.Assert(handler != null);
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81
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82 return () => {
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83 try {
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84 next.Resolve(handler());
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85 } catch (Exception err) {
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86 next.Reject(err);
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87 }
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88 };
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89 }
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90
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91 public static Action Create<T2>(Func<IPromise<T2>> handler, Deferred<T2> next) {
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92 Debug.Assert(handler != null);
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93 return () => {
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94 try {
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95 next.Resolve(handler());
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96 } catch (Exception err) {
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97 next.Reject(err);
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98 }
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99 };
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100 }
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101 }
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102 } |
