annotate Implab/Safe.cs @ 244:eee3e49dd1ff v3

working on promises
author cin
date Thu, 25 Jan 2018 19:09:16 +0300
parents bdfdba6b645b
children 5cb4826c2c2a
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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 using System.Collections;
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8 using System.Runtime.CompilerServices;
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9
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10 #if NET_4_5
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11 using System.Threading.Tasks;
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12 #endif
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13
1
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14 namespace Implab
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15 {
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16 public static class Safe
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17 {
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18 [MethodImpl(MethodImplOptions.AggressiveInlining)]
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19 public static void ArgumentAssert(bool condition, string paramName) {
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20 if (!condition)
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21 throw new ArgumentException("The parameter is invalid", paramName);
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22 }
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23
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24 [MethodImpl(MethodImplOptions.AggressiveInlining)]
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25 public static void ArgumentMatch(string value, string paramName, Regex rx) {
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26 if (rx == null)
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27 throw new ArgumentNullException("rx");
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28 if (!rx.IsMatch(value))
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29 throw new ArgumentException(String.Format("The prameter value must match {0}", rx), paramName);
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30 }
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31
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32 [MethodImpl(MethodImplOptions.AggressiveInlining)]
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33 public static void ArgumentNotEmpty(string value, string paramName) {
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34 if (String.IsNullOrEmpty(value))
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35 throw new ArgumentException("The parameter can't be empty", paramName);
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36 }
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37
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38 [MethodImpl(MethodImplOptions.AggressiveInlining)]
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39 public static void ArgumentNotEmpty<T>(T[] value, string paramName) {
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40 if (value == null || value.Length == 0)
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41 throw new ArgumentException("The array must be not emty", paramName);
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42 }
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43
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44 [MethodImpl(MethodImplOptions.AggressiveInlining)]
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45 public static void ArgumentNotNull(object value, string paramName) {
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46 if (value == null)
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47 throw new ArgumentNullException(paramName);
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48 }
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50 [MethodImpl(MethodImplOptions.AggressiveInlining)]
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51 internal static void ArgumentGreaterThan(int value, int min, string paramName) {
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52 if (value < min)
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53 throw new ArgumentOutOfRangeException(paramName);
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54 }
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55
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56 [MethodImpl(MethodImplOptions.AggressiveInlining)]
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57 public static void ArgumentInRange(int value, int min, int max, string paramName) {
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58 if (value < min || value > max)
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59 throw new ArgumentOutOfRangeException(paramName);
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60 }
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61
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62 [MethodImpl(MethodImplOptions.AggressiveInlining)]
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63 public static void ArgumentOfType(object value, Type type, string paramName) {
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64 if (!type.IsInstanceOfType(value))
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65 throw new ArgumentException(String.Format("The parameter must be of type {0}", type), paramName);
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66 }
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67
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68 public static void Dispose(params IDisposable[] objects) {
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69 foreach (var d in objects)
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70 if (d != null)
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71 d.Dispose();
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72 }
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73
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74 public static void Dispose(params object[] objects) {
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75 foreach (var obj in objects) {
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76 var d = obj as IDisposable;
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77 if (d != null)
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78 d.Dispose();
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79 }
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80 }
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81
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82 public static void DisposeCollection(IEnumerable<IDisposable> objects) {
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83 foreach (var d in objects)
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84 Dispose(d);
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85 }
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86
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87 public static void DisposeCollection(IEnumerable objects) {
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88 foreach (var d in objects)
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89 Dispose(d);
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90 }
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91
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92 public static void Dispose(object obj) {
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93 if (obj is IDisposable)
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94 Dispose((IDisposable)obj);
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95
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96 }
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97
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98 [DebuggerStepThrough]
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99 public static void DispatchEvent<T>(this EventHandler<T> handler, object sender, T args) {
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100 if (handler != null)
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101 handler(sender, args);
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102 }
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103
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104 [DebuggerStepThrough]
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105 public static void DispatchEvent(this EventHandler handler, object sender, EventArgs args) {
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106 if (handler != null)
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107 handler(sender, args);
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108 }
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109
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110 [DebuggerStepThrough]
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111 public static IPromise<T> Run<T>(Func<T> action) {
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112 ArgumentNotNull(action, "action");
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113
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114 try {
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115 return Promise<T>.FromResult(action());
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116 } catch (Exception err) {
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117 return Promise<T>.FromException(err);
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118 }
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119 }
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120
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121 [DebuggerStepThrough]
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122 public static IPromise Run(Action action) {
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123 ArgumentNotNull(action, "action");
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124
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125 try {
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126 action();
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127 return Promise.Success;
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128 } catch (Exception err) {
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129 return new FailedPromise(err);
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130 }
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131 }
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132
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133 [DebuggerStepThrough]
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134 public static IPromise Run(Func<IPromise> action) {
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135 ArgumentNotNull(action, "action");
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136
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137 try {
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138 return action() ?? new FailedPromise(new Exception("The action returned null"));
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139 } catch (Exception err) {
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140 return new FailedPromise(err);
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141 }
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142 }
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143
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144 public static void NoWait(IPromise promise) {
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145 }
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146
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147 [DebuggerStepThrough]
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148 public static IPromise<T> Run<T>(Func<IPromise<T>> action) {
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149 ArgumentNotNull(action, "action");
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150
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151 try {
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152 return action() ?? Promise<T>.FromException(new Exception("The action returned null"));
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153 } catch (Exception err) {
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154 return Promise<T>.FromException(err);
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155 }
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156 }
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157
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158 #if NET_4_5
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159 public static void NoWait(Task t) {
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160 }
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161 #endif
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162
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163 }
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164 }