Mercurial > projects > dwt2
annotate org.eclipse.jface/src/org/eclipse/jface/util/SafeRunnable.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 * Chris Gross (schtoo@schtoo.com) - support for ISafeRunnableRunner added |
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11 * (bug 49497 [RCP] JFace dependency on org.eclipse.core.runtime enlarges standalone JFace applications) |
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12 * Port to the D programming language: |
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13 * Frank Benoit <benoit@tionex.de> |
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14 *******************************************************************************/ |
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15 module org.eclipse.jface.util.SafeRunnable; |
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16 |
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17 import org.eclipse.jface.util.ISafeRunnableRunner; |
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18 import org.eclipse.jface.util.SafeRunnableDialog; |
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19 import org.eclipse.jface.util.Policy; |
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20 import org.eclipse.core.runtime.ISafeRunnable; |
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21 import org.eclipse.core.runtime.IStatus; |
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22 import org.eclipse.core.runtime.OperationCanceledException; |
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23 import org.eclipse.core.runtime.Status; |
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24 import org.eclipse.jface.resource.JFaceResources; |
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25 |
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26 import java.lang.all; |
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27 import java.util.Set; |
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28 |
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29 /** |
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30 * Implements a default implementation of ISafeRunnable. The default |
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31 * implementation of <code>handleException</code> opens a dialog to show any |
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32 * errors as they accumulate. |
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33 * <p> |
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34 * This may be executed on any thread. |
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35 */ |
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36 public abstract class SafeRunnable : ISafeRunnable { |
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37 |
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38 private static bool ignoreErrors = false; |
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39 |
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40 private static ISafeRunnableRunner runner; |
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41 |
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42 private String message; |
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43 |
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44 /** |
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45 * Creates a new instance of SafeRunnable with a default error message. |
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46 */ |
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47 public this() { |
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48 // do nothing |
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49 } |
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50 |
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51 /** |
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52 * Creates a new instance of SafeRunnable with the given error message. |
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53 * |
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54 * @param message |
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55 * the error message to use |
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56 */ |
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57 public this(String message) { |
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58 this.message = message; |
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59 } |
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60 |
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61 /* |
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62 * (non-Javadoc) |
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63 * |
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64 * @see org.eclipse.core.runtime.ISafeRunnable#handleException(java.lang.Throwable) |
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65 */ |
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66 public void handleException(Exception e) { |
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67 // Workaround to avoid interactive error dialogs during |
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68 // automated testing |
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69 if (ignoreErrors) |
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70 return; |
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71 |
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72 if (message is null) |
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73 message = JFaceResources.getString("SafeRunnable.errorMessage"); //$NON-NLS-1$ |
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74 |
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75 Policy.getStatusHandler().show( |
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76 new Status(IStatus.ERROR, Policy.JFACE, message, e), |
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77 JFaceResources.getString("SafeRunnable.errorMessage")); //$NON-NLS-1$ |
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78 } |
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79 |
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80 /** |
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81 * Flag to avoid interactive error dialogs during automated testing. |
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82 * |
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83 * @param flag |
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84 * @return true if errors should be ignored |
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85 * @deprecated use getIgnoreErrors() |
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86 */ |
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87 public static bool getIgnoreErrors(bool flag) { |
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88 return ignoreErrors; |
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89 } |
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90 |
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91 /** |
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92 * Flag to avoid interactive error dialogs during automated testing. |
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93 * |
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94 * @return true if errors should be ignored |
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95 * |
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96 * @since 3.0 |
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97 */ |
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98 public static bool getIgnoreErrors() { |
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99 return ignoreErrors; |
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100 } |
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101 |
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102 /** |
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103 * Flag to avoid interactive error dialogs during automated testing. |
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104 * |
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105 * @param flag |
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106 * set to true if errors should be ignored |
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107 */ |
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108 public static void setIgnoreErrors(bool flag) { |
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109 ignoreErrors = flag; |
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110 } |
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111 |
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112 /** |
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113 * Returns the safe runnable runner. |
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114 * |
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115 * @return the safe runnable runner |
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116 * |
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117 * @since 3.1 |
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118 */ |
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119 public static ISafeRunnableRunner getRunner() { |
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120 if (runner is null) { |
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121 runner = createDefaultRunner(); |
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122 } |
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123 return runner; |
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124 } |
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125 |
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126 /** |
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127 * Creates the default safe runnable runner. |
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128 * |
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129 * @return the default safe runnable runner |
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130 * @since 3.1 |
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131 */ |
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132 private static ISafeRunnableRunner createDefaultRunner() { |
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133 return new class ISafeRunnableRunner { |
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134 public void run(ISafeRunnable code) { |
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135 try { |
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136 code.run(); |
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137 } catch (Exception e) { |
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138 handleException(code, e); |
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139 // } catch (LinkageError e) { |
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140 // handleException(code, e); |
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141 } |
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142 } |
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143 |
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144 private void handleException(ISafeRunnable code, Exception e) { |
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145 if (!(cast(OperationCanceledException)e )) { |
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146 try { |
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147 Policy.getLog() |
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148 .log( |
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149 new Status(IStatus.ERROR, Policy.JFACE, |
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150 IStatus.ERROR, |
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151 "Exception occurred", e)); //$NON-NLS-1$ |
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152 } catch (Exception ex) { |
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153 ExceptionPrintStackTrace(e); |
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154 } |
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155 } |
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156 code.handleException(e); |
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157 } |
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158 }; |
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159 } |
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160 |
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161 /** |
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162 * Sets the safe runnable runner. |
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163 * |
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164 * @param runner |
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165 * the runner to set, or <code>null</code> to reset to the |
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166 * default runner |
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167 * @since 3.1 |
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168 */ |
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169 public static void setRunner(ISafeRunnableRunner runner) { |
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170 SafeRunnable.runner = runner; |
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171 } |
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172 |
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173 /** |
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174 * Runs the given safe runnable using the safe runnable runner. This is a |
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175 * convenience method, equivalent to: |
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176 * <code>SafeRunnable.getRunner().run(runnable)</code>. |
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177 * |
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178 * @param runnable |
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179 * the runnable to run |
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180 * @since 3.1 |
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181 */ |
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182 public static void run(ISafeRunnable runnable) { |
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183 getRunner().run(runnable); |
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184 } |
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185 |
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186 } |
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187 |
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188 import tango.core.Tuple; |
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189 import tango.core.Traits; |
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190 |
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191 class _DgSafeRunnableT(Dg,T...) : SafeRunnable { |
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192 |
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193 alias ParameterTupleOf!(Dg) DgArgs; |
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194 static assert( is(DgArgs == Tuple!(T)), |
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195 "Delegate args not correct" ); |
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196 |
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197 Dg dg; |
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198 T t; |
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199 |
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200 private this( Dg dg, T t ){ |
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201 this.dg = dg; |
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202 static if( T.length > 0 ){ |
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203 this.t = t; |
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204 } |
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205 } |
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206 |
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207 public void run( ){ |
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208 dg(t); |
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209 } |
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210 } |
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211 |
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212 public _DgSafeRunnableT!(Dg,T) dgSafeRunnable(Dg,T...)( Dg dg, T args ){ |
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213 return new _DgSafeRunnableT!(Dg,T)(dg,args); |
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214 } |