Mercurial > projects > dwt-linux
annotate dwt/DWTError.d @ 259:c0d810de7093
Update SWT 3.4M7 to 3.4
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 29 Jun 2008 14:33:38 +0200 |
| parents | 380bad9f6852 |
| children | 4bffbf81e2d6 |
| rev | line source |
|---|---|
| 72 | 1 /******************************************************************************* |
| 259 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
| 0 | 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 | |
| 72 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 0 | 12 *******************************************************************************/ |
| 71 | 13 module dwt.DWTError; |
| 0 | 14 |
| 238 | 15 import dwt.dwthelper.utils; |
| 16 | |
| 71 | 17 import dwt.DWT; |
| 0 | 18 |
| 19 import tango.core.Exception; | |
| 20 import tango.io.Stdout; | |
| 21 | |
| 22 /** | |
| 23 * This error is thrown whenever an unrecoverable error | |
| 71 | 24 * occurs internally in DWT. The message text and error code |
| 0 | 25 * provide a further description of the problem. The exception |
| 26 * has a <code>throwable</code> field which holds the underlying | |
| 27 * throwable that caused the problem (if this information is | |
| 28 * available (i.e. it may be null)). | |
| 29 * <p> | |
| 30 * SWTErrors are thrown when something fails internally which | |
| 71 | 31 * either leaves DWT in an unknown state (eg. the o/s call to |
| 32 * remove an item from a list returns an error code) or when DWT | |
| 0 | 33 * is left in a known-to-be-unrecoverable state (eg. it runs out |
| 34 * of callback resources). SWTErrors should not occur in typical | |
| 35 * programs, although "high reliability" applications should | |
| 36 * still catch them. | |
| 37 * </p><p> | |
| 71 | 38 * This class also provides support methods used by DWT to match |
| 39 * error codes to the appropriate exception class (DWTError, | |
| 40 * DWTException, or IllegalArgumentException) and to provide | |
| 41 * human readable strings for DWT error codes. | |
| 0 | 42 * </p> |
| 43 * | |
| 71 | 44 * @see DWTException |
| 45 * @see DWT#error(int) | |
| 259 | 46 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| 0 | 47 */ |
| 48 | |
| 71 | 49 public class DWTError : PlatformException { |
| 0 | 50 /** |
| 71 | 51 * The DWT error code, one of DWT.ERROR_*. |
| 0 | 52 */ |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
53 public int code; |
| 0 | 54 |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
55 /** |
|
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
56 * The underlying throwable that caused the problem, |
|
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
57 * or null if this information is not available. |
|
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
58 */ |
|
231
654b7d7cc33c
instead of throwable member var, use the Exception.next
Frank Benoit <benoit@tionex.de>
parents:
158
diff
changeset
|
59 public Exception throwable( Exception e ){ |
|
654b7d7cc33c
instead of throwable member var, use the Exception.next
Frank Benoit <benoit@tionex.de>
parents:
158
diff
changeset
|
60 this.next = e; |
|
654b7d7cc33c
instead of throwable member var, use the Exception.next
Frank Benoit <benoit@tionex.de>
parents:
158
diff
changeset
|
61 return this.next; |
|
654b7d7cc33c
instead of throwable member var, use the Exception.next
Frank Benoit <benoit@tionex.de>
parents:
158
diff
changeset
|
62 } |
|
654b7d7cc33c
instead of throwable member var, use the Exception.next
Frank Benoit <benoit@tionex.de>
parents:
158
diff
changeset
|
63 public Exception throwable(){ |
|
654b7d7cc33c
instead of throwable member var, use the Exception.next
Frank Benoit <benoit@tionex.de>
parents:
158
diff
changeset
|
64 return this.next; |
|
654b7d7cc33c
instead of throwable member var, use the Exception.next
Frank Benoit <benoit@tionex.de>
parents:
158
diff
changeset
|
65 } |
| 0 | 66 |
| 67 //static final long serialVersionUID = 3833467327105808433L; | |
| 68 | |
| 69 /** | |
| 70 * Constructs a new instance of this class with its | |
| 71 * stack trace filled in. The error code is set to an | |
| 72 * unspecified value. | |
| 73 */ | |
| 74 public this () { | |
| 71 | 75 this (DWT.ERROR_UNSPECIFIED); |
| 0 | 76 } |
| 77 | |
| 78 /** | |
| 79 * Constructs a new instance of this class with its | |
| 80 * stack trace and message filled in. The error code is | |
| 81 * set to an unspecified value. Specifying <code>null</code> | |
| 82 * as the message is equivalent to specifying an empty string. | |
| 83 * | |
| 84 * @param message the detail message for the exception | |
| 85 */ | |
| 238 | 86 public this (String message) { |
| 71 | 87 this (DWT.ERROR_UNSPECIFIED, message); |
| 0 | 88 } |
| 89 | |
| 90 /** | |
| 91 * Constructs a new instance of this class with its | |
| 92 * stack trace and error code filled in. | |
| 93 * | |
| 71 | 94 * @param code the DWT error code |
| 0 | 95 */ |
| 96 public this (int code) { | |
| 71 | 97 this (code, DWT.findErrorText (code)); |
| 0 | 98 } |
| 99 | |
| 100 /** | |
| 101 * Constructs a new instance of this class with its | |
| 102 * stack trace, error code and message filled in. | |
| 103 * Specifying <code>null</code> as the message is | |
| 104 * equivalent to specifying an empty string. | |
| 105 * | |
| 71 | 106 * @param code the DWT error code |
| 0 | 107 * @param message the detail message for the exception |
| 108 */ | |
| 238 | 109 public this (int code, String message) { |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
110 super (message); |
|
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
111 this.code = code; |
| 0 | 112 } |
| 113 | |
| 114 /** | |
| 115 * Returns the underlying throwable that caused the problem, | |
| 116 * or null if this information is not available. | |
| 117 * <p> | |
| 118 * NOTE: This method overrides Throwable.getCause() that was | |
| 119 * added to JDK1.4. It is necessary to override this method | |
| 120 * in order for inherited printStackTrace() methods to work. | |
| 121 * </p> | |
| 122 * @return the underlying throwable | |
| 123 * | |
| 124 * @since 3.1 | |
| 125 */ | |
| 126 public Exception getCause() { | |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
127 return throwable; |
| 0 | 128 } |
| 129 | |
| 130 /** | |
| 71 | 131 * Returns the string describing this DWTError object. |
| 0 | 132 * <p> |
| 133 * It is combined with the message string of the Throwable | |
| 71 | 134 * which caused this DWTError (if this information is available). |
| 0 | 135 * </p> |
| 71 | 136 * @return the error message string of this DWTError object |
| 0 | 137 */ |
| 238 | 138 public String getMessage () { |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
139 if (throwable is null) |
| 0 | 140 return super.toString(); |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
141 return super.toString () ~ " (" ~ throwable.toString () ~ ")"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 0 | 142 } |
| 143 | |
| 144 /** | |
| 145 * Outputs a printable representation of this error's | |
| 146 * stack trace on the standard error stream. | |
| 147 * <p> | |
| 148 * Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter) | |
| 149 * are not provided in order to maintain compatibility with CLDC. | |
| 150 * </p> | |
| 151 */ | |
| 152 public void printStackTrace () { | |
| 153 Stderr.formatln( "stacktrace follows (if feature compiled in)" ); | |
|
158
de2578a843a7
Tango update to rev 3158, TracedException>Exception, fromUtf8z>fromStringz,Fix Bug in MenuItem Thanx to nascent for the report.
Frank Benoit <benoit@tionex.de>
parents:
72
diff
changeset
|
154 foreach( msg; info ){ |
| 0 | 155 Stderr.formatln( "{}", msg ); |
| 156 } | |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
157 if ( throwable !is null) { |
|
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
158 Stderr.formatln ("*** Stack trace of contained error ***"); //$NON-NLS-1$ |
|
158
de2578a843a7
Tango update to rev 3158, TracedException>Exception, fromUtf8z>fromStringz,Fix Bug in MenuItem Thanx to nascent for the report.
Frank Benoit <benoit@tionex.de>
parents:
72
diff
changeset
|
159 foreach( msg; throwable.info ){ |
| 0 | 160 Stderr.formatln( "{}", msg ); |
| 161 } | |
|
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
162 } |
| 0 | 163 } |
| 164 | |
| 165 } |