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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 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.SWTException;
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14
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15 import java.lang.all;
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16
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17 import org.eclipse.swt.SWT;
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18
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26
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19 version(Tango){
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20 } else { // Phobos
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21 }
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25
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22
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23 /**
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24 * This runtime exception is thrown whenever a recoverable error
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25 * occurs internally in SWT. The message text and error code
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26 * provide a further description of the problem. The exception
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27 * has a <code>throwable</code> field which holds the underlying
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28 * exception that caused the problem (if this information is
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29 * available (i.e. it may be null)).
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30 * <p>
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31 * SWTExceptions are thrown when something fails internally,
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32 * but SWT is left in a known stable state (eg. a widget call
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33 * was made from a non-u/i thread, or there is failure while
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34 * reading an Image because the source file was corrupt).
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35 * </p>
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36 *
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37 * @see SWTError
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38 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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39 */
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40
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41 public class SWTException : Exception {
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42 /**
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43 * The SWT error code, one of SWT.ERROR_*.
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44 */
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45 public int code;
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46
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47 /**
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48 * The underlying throwable that caused the problem,
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49 * or null if this information is not available.
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50 */
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51 public Exception throwable( Exception e ){
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52 this.next = e;
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53 return this.next;
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54 }
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55 public Exception throwable(){
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56 return this.next;
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57 }
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58
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59
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60 //static final long serialVersionUID = 3257282552304842547L;
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61
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62 /**
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63 * Constructs a new instance of this class with its
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64 * stack trace filled in. The error code is set to an
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65 * unspecified value.
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66 */
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67 public this () {
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68 this (SWT.ERROR_UNSPECIFIED);
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69 }
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70
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71 /**
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72 * Constructs a new instance of this class with its
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73 * stack trace and message filled in. The error code is
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74 * set to an unspecified value. Specifying <code>null</code>
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75 * as the message is equivalent to specifying an empty string.
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76 *
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77 * @param message the detail message for the exception
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78 */
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79 public this (String message) {
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80 this (SWT.ERROR_UNSPECIFIED, message);
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81 }
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82
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83 /**
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84 * Constructs a new instance of this class with its
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85 * stack trace and error code filled in.
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86 *
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87 * @param code the SWT error code
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88 */
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89 public this (int code) {
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90 this (code, SWT.findErrorText (code));
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91 }
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92
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93 /**
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94 * Constructs a new instance of this class with its
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95 * stack trace, error code and message filled in.
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96 * Specifying <code>null</code> as the message is
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97 * equivalent to specifying an empty string.
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98 *
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99 * @param code the SWT error code
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100 * @param message the detail message for the exception
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101 */
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102 public this (int code, String message) {
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103 super (message);
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104 this.code = code;
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105 }
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106
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107 /**
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108 * Returns the underlying throwable that caused the problem,
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109 * or null if this information is not available.
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110 * <p>
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111 * NOTE: This method overrides Throwable.getCause() that was
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112 * added to JDK1.4. It is necessary to override this method
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113 * in order for inherited printStackTrace() methods to work.
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114 * </p>
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115 * @return the underlying throwable
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116 *
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117 * @since 3.1
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118 */
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119 public Exception getCause() {
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120 return throwable;
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121 }
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122
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123 /**
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124 * Returns the string describing this SWTException object.
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125 * <p>
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126 * It is combined with the message string of the Throwable
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127 * which caused this SWTException (if this information is available).
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128 * </p>
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129 * @return the error message string of this SWTException object
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130 */
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131 public String getMessage () {
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132 if (throwable is null) return super.toString ();
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133 return super.toString () ~ " (" ~ throwable.toString () ~ ")"; //$NON-NLS-1$ //$NON-NLS-2$
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134 }
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135
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136 /**
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137 * Outputs a printable representation of this exception's
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138 * stack trace on the standard error stream.
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139 * <p>
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140 * Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter)
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141 * are not provided in order to maintain compatibility with CLDC.
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142 * </p>
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143 */
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144 public void printStackTrace () {
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145 getDwtLogger().error( __FILE__, __LINE__, "stacktrace follows (if feature compiled in)" );
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146 foreach( msg; info ){
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147 getDwtLogger().error( __FILE__, __LINE__, "{}", msg );
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148 }
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149 if ( throwable !is null) {
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150 getDwtLogger().error ( __FILE__, __LINE__, "*** Stack trace of contained exception ***"); //$NON-NLS-1$
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151 foreach( msg; throwable.info ){
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152 getDwtLogger().error( __FILE__, __LINE__, "{}", msg );
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153 }
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154 }
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155 }
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156
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157 }
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158
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159
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