Mercurial > projects > dwt-linux
annotate dwt/DWTError.d @ 71:295b29fc7d13
Renamed SWT to DWT
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 15 Jan 2008 06:44:34 +0100 |
| parents | dwt/SWTError.d@8cec8f536af3 |
| children | 5899e0b43e5d |
| rev | line source |
|---|---|
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
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 *******************************************************************************/ | |
| 71 | 11 module dwt.DWTError; |
| 0 | 12 |
| 71 | 13 import dwt.DWT; |
| 0 | 14 |
| 15 import tango.core.Exception; | |
| 16 import tango.io.Stdout; | |
| 17 | |
| 18 /** | |
| 19 * This error is thrown whenever an unrecoverable error | |
| 71 | 20 * occurs internally in DWT. The message text and error code |
| 0 | 21 * provide a further description of the problem. The exception |
| 22 * has a <code>throwable</code> field which holds the underlying | |
| 23 * throwable that caused the problem (if this information is | |
| 24 * available (i.e. it may be null)). | |
| 25 * <p> | |
| 26 * SWTErrors are thrown when something fails internally which | |
| 71 | 27 * either leaves DWT in an unknown state (eg. the o/s call to |
| 28 * remove an item from a list returns an error code) or when DWT | |
| 0 | 29 * is left in a known-to-be-unrecoverable state (eg. it runs out |
| 30 * of callback resources). SWTErrors should not occur in typical | |
| 31 * programs, although "high reliability" applications should | |
| 32 * still catch them. | |
| 33 * </p><p> | |
| 71 | 34 * This class also provides support methods used by DWT to match |
| 35 * error codes to the appropriate exception class (DWTError, | |
| 36 * DWTException, or IllegalArgumentException) and to provide | |
| 37 * human readable strings for DWT error codes. | |
| 0 | 38 * </p> |
| 39 * | |
| 71 | 40 * @see DWTException |
| 41 * @see DWT#error(int) | |
| 0 | 42 */ |
| 43 | |
| 71 | 44 public class DWTError : PlatformException { |
| 0 | 45 /** |
| 71 | 46 * The DWT error code, one of DWT.ERROR_*. |
| 0 | 47 */ |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
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48 public int code; |
| 0 | 49 |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
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diff
changeset
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50 /** |
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parents:
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51 * The underlying throwable that caused the problem, |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
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52 * or null if this information is not available. |
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8cec8f536af3
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Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
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53 */ |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
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54 public TracedException throwable; |
| 0 | 55 |
| 56 //static final long serialVersionUID = 3833467327105808433L; | |
| 57 | |
| 58 /** | |
| 59 * Constructs a new instance of this class with its | |
| 60 * stack trace filled in. The error code is set to an | |
| 61 * unspecified value. | |
| 62 */ | |
| 63 public this () { | |
| 71 | 64 this (DWT.ERROR_UNSPECIFIED); |
| 0 | 65 } |
| 66 | |
| 67 /** | |
| 68 * Constructs a new instance of this class with its | |
| 69 * stack trace and message filled in. The error code is | |
| 70 * set to an unspecified value. Specifying <code>null</code> | |
| 71 * as the message is equivalent to specifying an empty string. | |
| 72 * | |
| 73 * @param message the detail message for the exception | |
| 74 */ | |
| 75 public this (char[] message) { | |
| 71 | 76 this (DWT.ERROR_UNSPECIFIED, message); |
| 0 | 77 } |
| 78 | |
| 79 /** | |
| 80 * Constructs a new instance of this class with its | |
| 81 * stack trace and error code filled in. | |
| 82 * | |
| 71 | 83 * @param code the DWT error code |
| 0 | 84 */ |
| 85 public this (int code) { | |
| 71 | 86 this (code, DWT.findErrorText (code)); |
| 0 | 87 } |
| 88 | |
| 89 /** | |
| 90 * Constructs a new instance of this class with its | |
| 91 * stack trace, error code and message filled in. | |
| 92 * Specifying <code>null</code> as the message is | |
| 93 * equivalent to specifying an empty string. | |
| 94 * | |
| 71 | 95 * @param code the DWT error code |
| 0 | 96 * @param message the detail message for the exception |
| 97 */ | |
| 98 public this (int code, char[] message) { | |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
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99 super (message); |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
100 this.code = code; |
| 0 | 101 } |
| 102 | |
| 103 /** | |
| 104 * Returns the underlying throwable that caused the problem, | |
| 105 * or null if this information is not available. | |
| 106 * <p> | |
| 107 * NOTE: This method overrides Throwable.getCause() that was | |
| 108 * added to JDK1.4. It is necessary to override this method | |
| 109 * in order for inherited printStackTrace() methods to work. | |
| 110 * </p> | |
| 111 * @return the underlying throwable | |
| 112 * | |
| 113 * @since 3.1 | |
| 114 */ | |
| 115 public Exception getCause() { | |
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All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
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116 return throwable; |
| 0 | 117 } |
| 118 | |
| 119 /** | |
| 71 | 120 * Returns the string describing this DWTError object. |
| 0 | 121 * <p> |
| 122 * It is combined with the message string of the Throwable | |
| 71 | 123 * which caused this DWTError (if this information is available). |
| 0 | 124 * </p> |
| 71 | 125 * @return the error message string of this DWTError object |
| 0 | 126 */ |
| 127 public char[] getMessage () { | |
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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
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128 if (throwable is null) |
| 0 | 129 return super.toString(); |
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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
|
130 return super.toString () ~ " (" ~ throwable.toString () ~ ")"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 0 | 131 } |
| 132 | |
| 133 /** | |
| 134 * Outputs a printable representation of this error's | |
| 135 * stack trace on the standard error stream. | |
| 136 * <p> | |
| 137 * Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter) | |
| 138 * are not provided in order to maintain compatibility with CLDC. | |
| 139 * </p> | |
| 140 */ | |
| 141 public void printStackTrace () { | |
| 142 Stderr.formatln( "stacktrace follows (if feature compiled in)" ); | |
| 143 foreach( msg; this ){ | |
| 144 Stderr.formatln( "{}", msg ); | |
| 145 } | |
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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
|
146 if ( throwable !is null) { |
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8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
diff
changeset
|
147 Stderr.formatln ("*** Stack trace of contained error ***"); //$NON-NLS-1$ |
| 0 | 148 foreach( msg; throwable ){ |
| 149 Stderr.formatln( "{}", msg ); | |
| 150 } | |
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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
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151 } |
| 0 | 152 } |
| 153 | |
| 154 } |