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annotate Implab/Safe.cs @ 188:3071220371f8 ref20160224

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Updated VS project
author cin
date Fri, 22 Apr 2016 12:59:31 +0300
parents a0ff6a0e9c44
children 4d9830a9bbb8
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1 using System;
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2 using System.Collections.Generic;
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3 using System.Linq;
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4 using System.Text;
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5 using System.Text.RegularExpressions;
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6 using System.Diagnostics;
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7
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8 namespace Implab
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9 {
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10 public static class Safe
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11 {
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12 public static void ArgumentAssert(bool condition, string paramName) {
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13 if (!condition)
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14 throw new ArgumentException("The parameter is invalid", paramName);
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15 }
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16
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17 public static void ArgumentMatch(string value, string paramName, Regex rx) {
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18 if (rx == null)
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19 throw new ArgumentNullException("rx");
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20 if (!rx.IsMatch(value))
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21 throw new ArgumentException(String.Format("The prameter value must match {0}", rx), paramName);
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22 }
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23
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24 public static void ArgumentNotEmpty(string value, string paramName) {
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25 if (String.IsNullOrEmpty(value))
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26 throw new ArgumentException("The parameter can't be empty", paramName);
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27 }
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28
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29 public static void ArgumentNotEmpty<T>(T[] value, string paramName) {
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30 if (value == null || value.Length == 0)
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31 throw new ArgumentException("The array must be not emty", paramName);
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32 }
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33
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34 public static void ArgumentNotNull(object value, string paramName) {
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35 if (value == null)
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36 throw new ArgumentNullException(paramName);
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37 }
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38
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39 public static void ArgumentInRange(int value, int min, int max, string paramName) {
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40 if (value < min || value > max)
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41 throw new ArgumentOutOfRangeException(paramName);
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42 }
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43
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44 public static void ArgumentOfType(object value, Type type, string paramName) {
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45 if (!type.IsInstanceOfType(value))
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46 throw new ArgumentException(String.Format("The parameter must be of type {0}", type), paramName);
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47 }
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48
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49 public static void Dispose(params IDisposable[] objects) {
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50 foreach (var d in objects)
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51 if (d != null)
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52 d.Dispose();
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53 }
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55 public static void Dispose(params object[] objects) {
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56 foreach (var obj in objects) {
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57 var d = obj as IDisposable;
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58 if (d != null)
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59 d.Dispose();
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60 }
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61 }
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62
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63 public static void Dispose(object obj) {
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64 var d = obj as IDisposable;
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65 if (d != null)
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66 d.Dispose();
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67 }
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68
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69 [DebuggerStepThrough]
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70 public static IPromise<T> WrapPromise<T>(Func<T> action) {
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71 ArgumentNotNull(action, "action");
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72
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73 var p = new Promise<T>();
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74 try {
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75 p.Resolve(action());
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76 } catch (Exception err) {
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77 p.Reject(err);
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78 }
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79
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80 return p;
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81 }
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82
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83 [DebuggerStepThrough]
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84 public static IPromise WrapPromise(Action action) {
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85 ArgumentNotNull(action, "action");
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86
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87 var p = new Promise();
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88 try {
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89 action();
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90 p.Resolve();
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91 } catch (Exception err) {
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92 p.Reject(err);
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93 }
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94
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95 return p;
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96 }
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97
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98 [DebuggerStepThrough]
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99 public static IPromise InvokePromise(Func<IPromise> action) {
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100 ArgumentNotNull(action, "action");
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101
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102 try {
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103 var p = action();
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104 if (p == null) {
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105 var d = new Promise();
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106 d.Reject(new Exception("The action returned null"));
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107 p = d;
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108 }
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109 return p;
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110 } catch (Exception err) {
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111 var p = new Promise();
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112 p.Reject(err);
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113 return p;
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114 }
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115 }
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117 [DebuggerStepThrough]
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118 public static IPromise<T> InvokePromise<T>(Func<IPromise<T>> action) {
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119 ArgumentNotNull(action, "action");
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120
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121 try {
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122 return action() ?? Promise<T>.FromException(new Exception("The action returned null"));
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123 } catch (Exception err) {
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124 return Promise<T>.FromException(err);
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125 }
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126 }
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127 }
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128 }