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annotate Implab/Safe.cs @ 131:b5c2d609d71b v2

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minor changes
author cin
date Sat, 07 Feb 2015 11:06:42 +0300
parents 6241bff0cd64
children 5fb2bbffdece
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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 ArgumentMatch(string value, string paramName, Regex rx) {
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13 if (rx == null)
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14 throw new ArgumentNullException("rx");
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15 if (!rx.IsMatch(value))
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16 throw new ArgumentException(String.Format("The prameter value must match {0}", rx), paramName);
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17 }
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18
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19 public static void ArgumentNotEmpty(string value, string paramName) {
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20 if (String.IsNullOrEmpty(value))
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21 throw new ArgumentException("The parameter can't be empty", paramName);
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22 }
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23
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24 public static void ArgumentNotEmpty<T>(T[] value, string paramName) {
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25 if (value == null || value.Length == 0)
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26 throw new ArgumentException("The array must be not emty", paramName);
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27 }
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28
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29 public static void ArgumentNotNull(object value, string paramName) {
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30 if (value == null)
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31 throw new ArgumentNullException(paramName);
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32 }
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33
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34 public static void ArgumentInRange(int value, int min, int max, string paramName) {
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35 if (value < min || value > max)
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36 throw new ArgumentOutOfRangeException(paramName);
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37 }
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38
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39 public static void Dispose(params IDisposable[] objects) {
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40 foreach (var d in objects)
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41 if (d != null)
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42 d.Dispose();
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43 }
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44
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45 public static void Dispose(params object[] objects) {
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46 foreach (var obj in objects) {
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47 var d = obj as IDisposable;
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48 if (d != null)
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49 d.Dispose();
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50 }
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51 }
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52
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53 public static void Dispose(object obj) {
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54 var d = obj as IDisposable;
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55 if (d != null)
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56 d.Dispose();
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57 }
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58
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59 [DebuggerStepThrough]
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60 public static IPromise<T> InvokePromise<T>(Func<T> action) {
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61 ArgumentNotNull(action, "action");
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62
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63 var p = new Promise<T>();
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64 try {
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65 p.Resolve(action());
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66 } catch (Exception err) {
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67 p.Reject(err);
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68 }
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69
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70 return p;
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71 }
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72
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73 [DebuggerStepThrough]
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74 public static IPromise InvokePromise(Action action) {
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75 ArgumentNotNull(action, "action");
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76
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77 var p = new Promise();
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78 try {
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79 action();
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80 p.Resolve();
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81 } catch (Exception err) {
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82 p.Reject(err);
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83 }
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84
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85 return p;
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86 }
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87
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88 [DebuggerStepThrough]
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89 public static IPromise InvokePromise(Func<IPromise> action) {
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90 ArgumentNotNull(action, "action");
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91
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92 var p = new Promise();
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93 try {
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94 action();
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95 p.Resolve();
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96 } catch (Exception err) {
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97 p.Reject(err);
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98 }
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99
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100 return p;
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101 }
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102
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103 [DebuggerStepThrough]
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104 public static IPromise<T> InvokePromise<T>(Func<IPromise<T>> action) {
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105 ArgumentNotNull(action, "action");
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106
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107 try {
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108 return action() ?? Promise<T>.ExceptionToPromise(new Exception("The action returned null"));
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109 } catch (Exception err) {
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110 return Promise<T>.ExceptionToPromise(err);
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111 }
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112 }
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113 }
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114 }