Mercurial > projects > dwt-win
annotate dwt/DWTError.d @ 206:cca980503056
sync with dwt-linux, removed the simple.d
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Wed, 16 Apr 2008 20:36:50 +0200 |
| parents | dc7db4338dbe |
| children | ab60f3309436 |
| rev | line source |
|---|---|
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
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1 /******************************************************************************* |
| 0 | 2 * Copyright (c) 2000, 2005 IBM Corporation and others. |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwt.DWTError; | |
| 14 | |
| 15 import dwt.DWT; | |
| 16 | |
| 17 import tango.core.Exception; | |
| 18 import tango.io.Stdout; | |
| 19 | |
| 20 /** | |
| 21 * This error is thrown whenever an unrecoverable error | |
| 22 * occurs internally in DWT. The message text and error code | |
| 23 * provide a further description of the problem. The exception | |
| 24 * has a <code>throwable</code> field which holds the underlying | |
| 25 * throwable that caused the problem (if this information is | |
| 26 * available (i.e. it may be null)). | |
| 27 * <p> | |
| 28 * SWTErrors are thrown when something fails internally which | |
| 29 * either leaves DWT in an unknown state (eg. the o/s call to | |
| 30 * remove an item from a list returns an error code) or when DWT | |
| 31 * is left in a known-to-be-unrecoverable state (eg. it runs out | |
| 32 * of callback resources). SWTErrors should not occur in typical | |
| 33 * programs, although "high reliability" applications should | |
| 34 * still catch them. | |
| 35 * </p><p> | |
| 36 * This class also provides support methods used by DWT to match | |
| 37 * error codes to the appropriate exception class (DWTError, | |
| 38 * DWTException, or IllegalArgumentException) and to provide | |
| 39 * human readable strings for DWT error codes. | |
| 40 * </p> | |
| 41 * | |
| 42 * @see DWTException | |
| 43 * @see DWT#error(int) | |
| 44 */ | |
| 45 | |
| 46 public class DWTError : PlatformException { | |
| 47 /** | |
| 48 * The DWT error code, one of DWT.ERROR_*. | |
| 49 */ | |
| 50 public int code; | |
| 51 | |
| 52 /** | |
| 53 * The underlying throwable that caused the problem, | |
| 54 * or null if this information is not available. | |
| 55 */ | |
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56 public Exception throwable( Exception e ){ |
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cca980503056
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57 this.next = e; |
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cca980503056
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58 return this.next; |
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cca980503056
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Frank Benoit <benoit@tionex.de>
parents:
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59 } |
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cca980503056
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Frank Benoit <benoit@tionex.de>
parents:
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60 public Exception throwable(){ |
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cca980503056
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parents:
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61 return this.next; |
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cca980503056
sync with dwt-linux, removed the simple.d
Frank Benoit <benoit@tionex.de>
parents:
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diff
changeset
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62 } |
| 0 | 63 |
| 64 //static final long serialVersionUID = 3833467327105808433L; | |
| 65 | |
| 66 /** | |
| 67 * Constructs a new instance of this class with its | |
| 68 * stack trace filled in. The error code is set to an | |
| 69 * unspecified value. | |
| 70 */ | |
| 71 public this () { | |
| 72 this (DWT.ERROR_UNSPECIFIED); | |
| 73 } | |
| 74 | |
| 75 /** | |
| 76 * Constructs a new instance of this class with its | |
| 77 * stack trace and message filled in. The error code is | |
| 78 * set to an unspecified value. Specifying <code>null</code> | |
| 79 * as the message is equivalent to specifying an empty string. | |
| 80 * | |
| 81 * @param message the detail message for the exception | |
| 82 */ | |
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bf9fe45b4422
C, Platform, Point, Rectangle
Frank Benoit <benoit@tionex.de>
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83 public this (char[] message) { |
| 0 | 84 this (DWT.ERROR_UNSPECIFIED, message); |
| 85 } | |
| 86 | |
| 87 /** | |
| 88 * Constructs a new instance of this class with its | |
| 89 * stack trace and error code filled in. | |
| 90 * | |
| 91 * @param code the DWT error code | |
| 92 */ | |
| 93 public this (int code) { | |
| 94 this (code, DWT.findErrorText (code)); | |
| 95 } | |
| 96 | |
| 97 /** | |
| 98 * Constructs a new instance of this class with its | |
| 99 * stack trace, error code and message filled in. | |
| 100 * Specifying <code>null</code> as the message is | |
| 101 * equivalent to specifying an empty string. | |
| 102 * | |
| 103 * @param code the DWT error code | |
| 104 * @param message the detail message for the exception | |
| 105 */ | |
| 106 public this (int code, char[] message) { | |
| 107 super (message); | |
| 108 this.code = code; | |
| 109 } | |
| 110 | |
| 111 /** | |
| 112 * Returns the underlying throwable that caused the problem, | |
| 113 * or null if this information is not available. | |
| 114 * <p> | |
| 115 * NOTE: This method overrides Throwable.getCause() that was | |
| 116 * added to JDK1.4. It is necessary to override this method | |
| 117 * in order for inherited printStackTrace() methods to work. | |
| 118 * </p> | |
| 119 * @return the underlying throwable | |
| 120 * | |
| 121 * @since 3.1 | |
| 122 */ | |
| 123 public Exception getCause() { | |
| 124 return throwable; | |
| 125 } | |
| 126 | |
| 127 /** | |
| 128 * Returns the string describing this DWTError object. | |
| 129 * <p> | |
| 130 * It is combined with the message string of the Throwable | |
| 131 * which caused this DWTError (if this information is available). | |
| 132 * </p> | |
| 133 * @return the error message string of this DWTError object | |
| 134 */ | |
| 135 public char[] getMessage () { | |
| 136 if (throwable is null) | |
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parents:
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137 return super.toString(); |
| 0 | 138 return super.toString () ~ " (" ~ throwable.toString () ~ ")"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 139 } | |
| 140 | |
| 141 /** | |
| 142 * Outputs a printable representation of this error's | |
| 143 * stack trace on the standard error stream. | |
| 144 * <p> | |
| 145 * Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter) | |
| 146 * are not provided in order to maintain compatibility with CLDC. | |
| 147 * </p> | |
| 148 */ | |
| 149 public void printStackTrace () { | |
| 150 Stderr.formatln( "stacktrace follows (if feature compiled in)" ); | |
| 59 | 151 foreach( msg; info ){ |
| 0 | 152 Stderr.formatln( "{}", msg ); |
| 153 } | |
| 154 if ( throwable !is null) { | |
| 155 Stderr.formatln ("*** Stack trace of contained error ***"); //$NON-NLS-1$ | |
| 59 | 156 foreach( msg; throwable.info ){ |
| 0 | 157 Stderr.formatln( "{}", msg ); |
| 158 } | |
| 159 } | |
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cca980503056
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parents:
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160 } |
| 0 | 161 |
| 162 } |