author | Stefan Vogel <sv@exept.de> |
Fri, 21 Jan 2000 20:59:45 +0100 | |
changeset 5197 | 14331ce13d51 |
parent 5061 | cd1fbfdf888a |
child 5259 | cda0ce95054d |
permissions | -rw-r--r-- |
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COPYRIGHT (c) 1993 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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Object subclass:#GenericException |
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instanceVariableNames:'signal parameter errorString suspendedContext handlerContext |
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rejected originator proceedable handlingException' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Kernel-Exceptions' |
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GenericException class instanceVariableNames:'NotifierString' |
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The following class instance variables are inherited by this class: |
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Object - |
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! |
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!GenericException class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1993 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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GenericException and its subclasses implement the same protocol as Signal. |
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So class based exceptions may be implemented as subclasses of GenericException. |
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Instances of Exception are passed to a Signal handling block as argument. |
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The handler block may perform various actions by sending corresponding messages |
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to the exception object. The following actions are possible: |
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reject - don't handle this signal; |
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another handler will be searched for, |
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upper in the calling hierarchy |
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proceed - return from the Signal>>raise, with nil as value |
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proceedWith:val - same, but return val from Signal>>raise |
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return - return from the Signal>>handle:do:, with nil as value |
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returnWith:val - same, but return val from Signal>>handle:do: |
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(this is also the handlers default, |
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if it falls through; taking the handlerBlocks value |
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as return value) |
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restart - restart the Signal>>handle:do:, after repairing |
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Via the Exception object, the handler can also query the state of execution: |
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where the Signal was raised, where the handler is, the signal which caused |
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the error and the errorString passed when the signal was raised. Also, an optional |
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parameter can be passed - the use is signal specific. |
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[instance variables:] |
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signal <Signal> the signal which caused the exception |
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parameter <Object> a parameter (if any) which was passed when raising |
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the signal (only if raised with #raiseWith:aParameter) |
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errorString <String> an errorString |
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(usually the signals own errorString, but sometimes |
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changed explicitely in #raiseWith:errorString:) |
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suspendedContext <Context> the context in which the raise occured |
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handlerContext <Context> the context of the handler (if any) |
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In case of an unhandled signal raise, Exceptions EmergenyHandler will be evaluated. |
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The default emergeny handler will enter the debugger. |
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For applications, which do not want Debuggers to come up, other handlers are |
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possible. |
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For example, to get the typical C++ behavior, use: |
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Exception emergencyHandler:[:ex | Smalltalk exitWithCoreDump] |
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[see also:] |
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Signal SignalSet QuerySignal |
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Context Block |
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Object DebugView |
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(``Exception handling and signals'': programming/exceptions.html) |
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[author:] |
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Claus Gittinger |
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examples |
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Examples on Exception-raising & handling are found in the doc/coding |
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section (CodingExamples). |
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The emergencyHandler stuff is very useful, to prevent endUser applications |
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from entering the debugger. See the examples in NoHandlerError. |
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!GenericException class methodsFor:'initialization'! |
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initialize |
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NotifierString := 'unknown exception'. |
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125 |
|
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126 |
"Modified: / 4.8.1999 / 09:06:26 / stefan" |
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127 |
! ! |
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128 |
|
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129 |
!GenericException class methodsFor:'instance creation'! |
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|
130 |
|
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131 |
signal:aSignal originator:origin |
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132 |
"create a new instance and set the fields in preparation for a raise. |
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|
133 |
- only to be sent from the signal when raising" |
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|
134 |
|
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135 |
"{ Pragma: +inlineNew }" |
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|
136 |
|
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137 |
^ (self basicNew) signal:aSignal originator:origin. |
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|
138 |
|
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139 |
"Created: / 23.7.1999 / 13:40:45 / stefan" |
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|
140 |
! |
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|
141 |
|
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142 |
signal:aSignal parameter:aParameter errorString:aString suspendedContext:sContext originator:origin |
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143 |
"create a new instance and set the fields in preparation for a raise. |
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|
144 |
- only to be sent from the signal when raising" |
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|
145 |
|
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|
146 |
"{ Pragma: +inlineNew }" |
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|
147 |
|
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148 |
^ (self basicNew) |
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149 |
signal:aSignal |
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150 |
parameter:aParameter |
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Add #handlerProtectedBlock:inContext
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151 |
errorString:aString |
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152 |
suspendedContext:sContext |
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153 |
originator:origin. |
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154 |
! ! |
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|
155 |
|
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156 |
!GenericException class methodsFor:'Signal constants'! |
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|
157 |
|
4517
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|
158 |
noHandlerError |
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|
159 |
|
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160 |
^ NoHandlerError |
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161 |
|
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162 |
"Created: / 4.8.1999 / 08:33:35 / stefan" |
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|
163 |
! |
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|
164 |
|
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|
165 |
proceedError |
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|
166 |
|
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|
167 |
^ ProceedError |
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|
168 |
|
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|
169 |
"Created: / 4.8.1999 / 08:34:30 / stefan" |
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170 |
! |
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|
171 |
|
4519
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|
172 |
recursiveExceptionError |
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173 |
"return the signal used to handle recursive signals in the handlers" |
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|
174 |
|
4519
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175 |
^ RecursiveExceptionError |
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|
176 |
|
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|
177 |
"Created: / 4.8.1999 / 09:05:06 / stefan" |
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|
178 |
! |
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|
179 |
|
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|
180 |
recursiveExceptionSignal |
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|
181 |
"return the signal used to handle recursive signals in the handlers. |
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|
182 |
This is for backward compatinility. Use recursiveExceptionError" |
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|
183 |
|
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|
184 |
^ RecursiveExceptionError |
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|
185 |
|
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|
186 |
"Modified: / 4.8.1999 / 09:05:59 / stefan" |
4517
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|
187 |
! |
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|
188 |
|
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|
189 |
wrongProceedabilityError |
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|
190 |
|
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|
191 |
^ WrongProceedabilityError |
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|
192 |
|
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|
193 |
"Created: / 4.8.1999 / 08:34:19 / stefan" |
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|
194 |
! ! |
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|
195 |
|
4562 | 196 |
!GenericException class methodsFor:'accessing'! |
197 |
||
198 |
notifierString:aString |
|
199 |
||
200 |
NotifierString := aString |
|
201 |
! ! |
|
202 |
||
4481
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|
203 |
!GenericException class methodsFor:'compatibility - accessing'! |
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|
204 |
|
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|
205 |
errorString |
4562 | 206 |
"#errorString is deprecated, use description instead" |
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|
207 |
|
4562 | 208 |
^ self description |
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|
209 |
! |
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|
210 |
|
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|
211 |
handlerBlock |
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|
212 |
"Compatibility with Signal. Class based exeptions do not have a handler |
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|
213 |
block. They redefine the #action method instead" |
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|
214 |
|
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|
215 |
^ nil |
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|
216 |
|
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|
217 |
"Created: / 23.7.1999 / 14:43:18 / stefan" |
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|
218 |
"Modified: / 24.7.1999 / 20:52:10 / stefan" |
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|
219 |
! ! |
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|
220 |
|
4562 | 221 |
!GenericException class methodsFor:'compatibility - defaults'! |
222 |
||
223 |
emergencyHandler |
|
224 |
||
225 |
^ NoHandlerError emergencyHandler. |
|
226 |
! |
|
227 |
||
228 |
emergencyHandler:aOneArgBlock |
|
229 |
"set the handler used for unhandled exceptions. |
|
230 |
The default (a nil-handler) leads to a debugger to be shown." |
|
231 |
||
232 |
^ NoHandlerError emergencyHandler:aOneArgBlock. |
|
233 |
||
234 |
"ST-80 behavior of first showing a notifier: |
|
235 |
(I prefer to get right into the debugger, though) |
|
236 |
||
237 |
Exception |
|
238 |
emergencyHandler: |
|
239 |
[:ex | self errorNotify:ex errorString ] |
|
240 |
" |
|
241 |
||
242 |
"ST-X behavior of going right into the debugger: |
|
243 |
||
244 |
Exception |
|
245 |
emergencyHandler:nil |
|
246 |
" |
|
247 |
||
248 |
"automatically aborting current operation, on error: |
|
249 |
(may be useful for end-user apps; make certain, |
|
250 |
you have abortSignal handlers at appropriate places) |
|
251 |
||
252 |
Exception |
|
253 |
emergencyHandler: |
|
254 |
[:ex | Object abortSignal raise. ex return. ] |
|
255 |
" |
|
256 |
||
257 |
"finally, traditional language system behavior; dump core ;-) |
|
258 |
||
259 |
Exception |
|
260 |
emergencyHandler: |
|
261 |
[:ex | Smalltalk exitWithCoreDump. ] |
|
262 |
" |
|
263 |
||
264 |
"Modified: 15.1.1997 / 20:49:06 / cg" |
|
265 |
||
266 |
! ! |
|
267 |
||
4481
f3f7e1af7489
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|
268 |
!GenericException class methodsFor:'compatibility - queries'! |
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diff
changeset
|
269 |
|
f3f7e1af7489
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changeset
|
270 |
accepts:aSignal |
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changeset
|
271 |
"return true, if the receiver accepts the argument, aSignal. |
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|
272 |
(i.e. the receiver is aSignal or a parent of it). False otherwise." |
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changeset
|
273 |
|
f3f7e1af7489
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diff
changeset
|
274 |
|s| |
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diff
changeset
|
275 |
|
4527 | 276 |
self == aSignal ifTrue:[^ true]. |
4481
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|
277 |
aSignal isQuerySignal ifTrue:[^ false]. |
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diff
changeset
|
278 |
|
f3f7e1af7489
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|
279 |
s := aSignal. |
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diff
changeset
|
280 |
[s notNil] whileTrue:[ |
4527 | 281 |
self == s ifTrue:[^ true]. |
282 |
s := s parent |
|
4481
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|
283 |
]. |
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changeset
|
284 |
^ false |
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parents:
diff
changeset
|
285 |
|
f3f7e1af7489
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parents:
diff
changeset
|
286 |
"Created: / 23.7.1999 / 14:00:47 / stefan" |
f3f7e1af7489
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parents:
diff
changeset
|
287 |
! |
f3f7e1af7489
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parents:
diff
changeset
|
288 |
|
4676 | 289 |
exception:anExceptionOrSignal isHandledIn:aContext |
290 |
"return true, if there is a handler for the receiver signal in the |
|
291 |
contextChain starting with aContext." |
|
292 |
||
293 |
|con r| |
|
294 |
||
295 |
con := Context findFirstSpecialHandle:true raise:false. |
|
296 |
[con notNil] whileTrue:[ |
|
297 |
((r := con receiver) notNil |
|
298 |
and:[(r handlerForSignal:anExceptionOrSignal context:con originator:nil) notNil] |
|
299 |
) ifTrue:[ |
|
300 |
"found a handler context" |
|
301 |
^ true |
|
302 |
]. |
|
303 |
con := con findSpecialHandle:true raise:false. |
|
304 |
]. |
|
305 |
^ false |
|
306 |
||
307 |
! |
|
308 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
309 |
handlerForSignal:signal context:theContext originator:originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
310 |
"answer the handler block for the signal from originator. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
311 |
The block is retrieved from aContext. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
312 |
Answer nil if the signal is not handled" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
313 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
314 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
315 |
(theContext selector ~~ #'handle:from:do:' |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
316 |
or:[(theContext argAt:2) == originator]) ifTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
317 |
(self == signal or:[self accepts:signal]) ifTrue:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
318 |
^ theContext argAt:1 |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
319 |
] |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
320 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
321 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
322 |
^ nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
323 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
324 |
"Created: / 25.7.1999 / 19:52:58 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
325 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
326 |
|
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
327 |
handlerProtectedBlock:doBlock inContext:context |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
328 |
"set the handlerProtectedBlock in context" |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
329 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
330 |
context selector == #handle:do: ifTrue:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
331 |
context argAt:2 put:doBlock. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
332 |
] ifFalse:[context selector == #handle:from:do: ifTrue:[ |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
333 |
context argAt:3 put:doBlock. |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
334 |
]]. |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
335 |
|
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
336 |
! |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
337 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
338 |
handlingExceptionInContext:theContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
339 |
"answer the handling exception from aContext." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
340 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
341 |
(theContext selector == #'handle:from:do:' |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
342 |
or:[theContext selector == #'handle:do:']) ifTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
343 |
^ theContext receiver |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
344 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
345 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
346 |
^ nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
347 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
348 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
349 |
inheritsFrom:anotherSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
350 |
"return true, if the receiver is a child of anotherSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
351 |
(i.e. if handling anotherSignal also handles the receiver) |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
352 |
This is almost the same as accepts, but returns false, if |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
353 |
the receiver is identical to anotherSignal." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
354 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
355 |
self == anotherSignal ifTrue:[^ false]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
356 |
^ anotherSignal accepts:self |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
357 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
358 |
"Created: / 23.7.1999 / 13:59:51 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
359 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
360 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
361 |
isHandled |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
362 |
"return true, if there is a handler for the receiver signal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
363 |
Raising an unhandled signal will usually lead into the debugger, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
364 |
but can be caught globally by setting Exceptions EmergencyHandler." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
365 |
|
4676 | 366 |
^ self exception:self isHandledIn:(thisContext sender). |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
367 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
368 |
"Created: / 23.7.1999 / 14:03:50 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
369 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
370 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
371 |
isHandledIn:aContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
372 |
"return true, if there is a handler for the receiver signal in the |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
373 |
contextChain starting with aContext." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
374 |
|
4676 | 375 |
^ self exception:self isHandledIn:aContext |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
376 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
377 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
378 |
isQuerySignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
379 |
"return true, if this is a querySignal - always return false here" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
380 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
381 |
^ false |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
382 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
383 |
"Created: / 23.7.1999 / 13:50:16 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
384 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
385 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
386 |
isSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
387 |
"return true, if the receiver is some kind of signal; |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
388 |
true returned here - the method is redefined from Object." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
389 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
390 |
^ true |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
391 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
392 |
"Created: / 23.7.1999 / 13:49:59 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
393 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
394 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
395 |
mayProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
396 |
"return true, if the exception handler is allowed to proceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
397 |
the execution where the exception occured. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
398 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
399 |
Subclasses may redefine this." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
400 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
401 |
^ true |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
402 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
403 |
"Modified: / 23.7.1999 / 14:50:11 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
404 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
405 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
406 |
parent |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
407 |
"return the parent Signal/Exception of myself. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
408 |
Subclasses may redefine this to install themself as child of |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
409 |
existing Signals." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
410 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
411 |
self == GenericException ifTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
412 |
^ nil |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
413 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
414 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
415 |
^ self superclass |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
416 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
417 |
"Created: / 23.7.1999 / 14:01:29 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
418 |
"Modified: / 23.7.1999 / 16:15:38 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
419 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
420 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
421 |
!GenericException class methodsFor:'compatibility - raising'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
422 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
423 |
new |
4496 | 424 |
"{ Pragma: +inlineNew }" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
425 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
426 |
^ self basicNew signal:self. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
427 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
428 |
"Modified: / 23.7.1999 / 13:53:12 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
429 |
"Created: / 24.7.1999 / 13:21:13 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
430 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
431 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
432 |
newException |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
433 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
434 |
^ self new |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
435 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
436 |
"Created: / 23.7.1999 / 13:45:49 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
437 |
"Modified: / 24.7.1999 / 13:21:25 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
438 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
439 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
440 |
newExceptionFrom:originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
441 |
"answer a new exception object for this signal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
442 |
Set the originator. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
443 |
Subclasses may redefine this method" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
444 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
445 |
^ self new originator:originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
446 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
447 |
"Created: / 23.7.1999 / 13:47:07 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
448 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
449 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
450 |
raise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
451 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
452 |
The signals notifierString is used as errorString." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
453 |
|
4556 | 454 |
<context: #return> |
455 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
456 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
457 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
458 |
raise |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
459 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
460 |
"Modified: / 2.5.1996 / 16:36:23 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
461 |
"Modified: / 5.3.1998 / 16:44:36 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
462 |
"Created: / 23.7.1999 / 14:07:17 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
463 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
464 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
465 |
raiseErrorString:aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
466 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
467 |
The argument is used as errorString." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
468 |
|
4556 | 469 |
<context: #return> |
470 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
471 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
472 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
473 |
errorString:aString; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
474 |
raise. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
475 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
476 |
"Modified: / 9.5.1996 / 15:17:59 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
477 |
"Modified: / 12.3.1998 / 15:15:22 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
478 |
"Created: / 23.7.1999 / 14:07:33 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
479 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
480 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
481 |
raiseFrom:something |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
482 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
483 |
The argument, something is passed both as parameter and originator." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
484 |
|
4556 | 485 |
<context: #return> |
486 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
487 |
^ (self newExceptionFrom:something) |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
488 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
489 |
parameter:something; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
490 |
raise |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
491 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
492 |
"Modified: / 2.5.1996 / 16:36:38 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
493 |
"Modified: / 5.3.1998 / 16:49:55 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
494 |
"Created: / 23.7.1999 / 14:07:59 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
495 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
496 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
497 |
raiseRequest |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
498 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
499 |
The signals notifierString is used as errorString." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
500 |
|
4556 | 501 |
<context: #return> |
502 |
||
503 |
^ self newException |
|
504 |
suspendedContext:thisContext sender; |
|
505 |
raiseRequest. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
506 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
507 |
"Modified: / 2.5.1996 / 16:36:52 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
508 |
"Modified: / 5.3.1998 / 16:50:46 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
509 |
"Created: / 23.7.1999 / 14:08:24 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
510 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
511 |
|
4758
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
512 |
raiseRequestErrorString:aString |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
513 |
"raise a signal proceedable. |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
514 |
The argument, aString is used as errorString." |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
515 |
|
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
516 |
<context: #return> |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
517 |
|
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
518 |
^ self newException |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
519 |
suspendedContext:thisContext sender; |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
520 |
errorString:aString; |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
521 |
raiseRequest |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
522 |
! |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
523 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
524 |
raiseRequestFrom:something |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
525 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
526 |
The argument, something is passed both as parameter and originator." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
527 |
|
4556 | 528 |
<context: #return> |
529 |
||
530 |
^ (self newExceptionFrom:something) |
|
531 |
suspendedContext:thisContext sender; |
|
532 |
parameter:something; |
|
533 |
raiseRequest. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
534 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
535 |
"Modified: / 2.5.1996 / 16:36:38 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
536 |
"Modified: / 5.3.1998 / 16:52:46 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
537 |
"Created: / 23.7.1999 / 14:08:36 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
538 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
539 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
540 |
raiseRequestWith:aParameter |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
541 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
542 |
The signals notifierString is used as errorString." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
543 |
|
4556 | 544 |
<context: #return> |
545 |
||
546 |
^ self newException |
|
547 |
suspendedContext:thisContext sender; |
|
548 |
parameter:aParameter; |
|
549 |
raiseRequest. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
550 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
551 |
"Modified: / 9.5.1996 / 15:13:20 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
552 |
"Modified: / 12.3.1998 / 15:16:57 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
553 |
"Created: / 23.7.1999 / 14:08:48 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
554 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
555 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
556 |
raiseRequestWith:aParameter errorString:aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
557 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
558 |
The argument, aString is used as errorString." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
559 |
|
4556 | 560 |
<context: #return> |
561 |
||
562 |
^ self newException |
|
563 |
suspendedContext:thisContext sender; |
|
564 |
parameter:aParameter; |
|
565 |
errorString:aString; |
|
566 |
raiseRequest |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
567 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
568 |
"Modified: / 9.5.1996 / 15:13:35 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
569 |
"Modified: / 12.3.1998 / 15:17:52 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
570 |
"Created: / 23.7.1999 / 14:08:57 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
571 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
572 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
573 |
raiseRequestWith:aParameter errorString:aString in:aContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
574 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
575 |
The argument, aString is used as errorString. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
576 |
The additional context is passed as the context responsible for the raise, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
577 |
allowing a raise to mimicri the exception happened somewhere else." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
578 |
|
4556 | 579 |
^ self newException |
580 |
parameter:aParameter; |
|
581 |
errorString:aString; |
|
582 |
suspendedContext:aContext; |
|
583 |
raiseRequest |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
584 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
585 |
"Modified: / 26.7.1996 / 16:29:27 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
586 |
"Modified: / 12.3.1998 / 15:18:34 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
587 |
"Created: / 23.7.1999 / 14:09:07 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
588 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
589 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
590 |
raiseWith:aParameter |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
591 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
592 |
The argument, aParameter is passed as parameter." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
593 |
|
4556 | 594 |
<context: #return> |
595 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
596 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
597 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
598 |
parameter:aParameter; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
599 |
raise. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
600 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
601 |
"Modified: / 9.5.1996 / 15:14:24 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
602 |
"Modified: / 12.3.1998 / 15:19:11 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
603 |
"Created: / 23.7.1999 / 14:09:27 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
604 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
605 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
606 |
raiseWith:aParameter errorString:aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
607 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
608 |
The argument, aString is used as errorString, aParameter is passed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
609 |
as exception parameter." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
610 |
|
4556 | 611 |
<context: #return> |
612 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
613 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
614 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
615 |
parameter:aParameter; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
616 |
errorString:aString; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
617 |
raise. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
618 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
619 |
"Modified: / 9.5.1996 / 15:14:32 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
620 |
"Modified: / 12.3.1998 / 15:19:40 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
621 |
"Created: / 23.7.1999 / 14:09:36 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
622 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
623 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
624 |
raiseWith:aParameter errorString:aString in:aContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
625 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
626 |
The argument, aString is used as errorString, aParameter is passed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
627 |
as exception parameter. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
628 |
The additional context is passed as the context responsible for the raise, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
629 |
allowing a raise to mimicri the exception happened somewhere else." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
630 |
|
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
631 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
632 |
parameter:aParameter; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
633 |
errorString:aString; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
634 |
suspendedContext:aContext; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
635 |
raise. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
636 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
637 |
"Modified: / 26.7.1996 / 16:29:42 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
638 |
"Modified: / 12.3.1998 / 15:20:12 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
639 |
"Created: / 23.7.1999 / 14:09:46 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
640 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
641 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
642 |
!GenericException class methodsFor:'compatibility - save evaluation'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
643 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
644 |
catch:aBlock |
4496 | 645 |
"evaluate the argument, aBlock. |
646 |
If the receiver-signal is raised during evaluation, abort |
|
647 |
the evaluation and return true; otherwise return false. |
|
648 |
This is the catch & throw mechanism found in other languages, |
|
649 |
where the returned value indicates if an exception occured." |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
650 |
|
4496 | 651 |
|raiseOccurred| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
652 |
|
4496 | 653 |
raiseOccurred := false. |
654 |
self handle:[:ex | raiseOccurred := true. ex return] do:aBlock. |
|
655 |
^ raiseOccurred |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
656 |
|
4496 | 657 |
" |
658 |
Object messageNotUnderstoodSignal catch:[ |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
659 |
123 size open |
4496 | 660 |
] |
661 |
" |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
662 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
663 |
"Created: / 23.7.1999 / 14:06:01 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
664 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
665 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
666 |
handle:handleBlock do:aBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
667 |
"evaluate the argument, aBlock. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
668 |
If the receiver-signal is raised during evaluation, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
669 |
evaluate the handleBlock passing it an Exception argument. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
670 |
The handler may decide how to react to the signal by sending |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
671 |
a corresponding message to the exception (see there). |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
672 |
If the signal is not raised, return the value of evaluating |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
673 |
aBlock." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
674 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
675 |
<context: #return> |
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
676 |
<exception: #handle> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
677 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
678 |
"/ thisContext markForHandle. -- same as above pragma |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
679 |
^ aBlock value "the real logic is in Exception>>doRaise" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
680 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
681 |
" |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
682 |
Object messageNotUnderstoodSignal handle:[:ex | |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
683 |
'oops' printNL. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
684 |
ex return |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
685 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
686 |
123 size open |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
687 |
] |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
688 |
" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
689 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
690 |
" |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
691 |
|num| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
692 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
693 |
num := 0. |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
694 |
Number divisionByZeroSignal handle:[:ex | |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
695 |
'oops' printNL. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
696 |
ex return |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
697 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
698 |
123 / num |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
699 |
] |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
700 |
" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
701 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
702 |
"Created: / 23.7.1999 / 14:06:13 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
703 |
"Modified: / 25.7.1999 / 19:44:05 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
704 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
705 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
706 |
handle:handleBlock from:anObject do:aBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
707 |
"evaluate the argument, aBlock. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
708 |
If the receiver-signal is raised during evaluation, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
709 |
and the exception originated from anObject, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
710 |
evaluate the handleBlock passing it an Exception argument. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
711 |
The handler may decide how to react to the signal by sending |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
712 |
a corresponding message to the exception (see there). |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
713 |
If the signal is not raised, return the value of evaluating |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
714 |
aBlock." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
715 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
716 |
<context: #return> |
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
717 |
<exception: #handle> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
718 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
719 |
"/ thisContext markForHandle. -- same as above pragma |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
720 |
^ aBlock value "the real logic is in Exception>>doRaise" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
721 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
722 |
" |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
723 |
the first open will be caught; the second not: |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
724 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
725 |
|o1 o2| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
726 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
727 |
o1 := 123. |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
728 |
o2 := nil. |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
729 |
Object messageNotUnderstoodSignal |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
730 |
handle: |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
731 |
[:ex | |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
732 |
'oops' printNL. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
733 |
ex proceed |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
734 |
] |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
735 |
from:o1 |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
736 |
do: |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
737 |
[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
738 |
o1 open. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
739 |
o2 open |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
740 |
] |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
741 |
" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
742 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
743 |
"Created: / 23.7.1999 / 14:06:26 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
744 |
"Modified: / 25.7.1999 / 19:44:13 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
745 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
746 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
747 |
ignoreIn:aBlock |
4496 | 748 |
"evaluate the argument, aBlock. |
749 |
Ignore the receiver-signal during evaluation - i.e. simply |
|
750 |
continue. |
|
751 |
This makes only sense for some signals, such as UserInterrupt |
|
752 |
or AbortSignal, because continuing after an exception without any cleanup |
|
753 |
often leads to followup-errors." |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
754 |
|
4496 | 755 |
^ self handle:[:ex | ex proceedWith:nil] do:aBlock. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
756 |
|
4496 | 757 |
" |
758 |
Object messageNotUnderstoodSignal ignoreIn:[ |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
759 |
123 size open |
4496 | 760 |
] |
761 |
" |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
762 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
763 |
"Created: / 23.7.1999 / 14:06:40 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
764 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
765 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
766 |
!GenericException class methodsFor:'compatibility - signal creation'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
767 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
768 |
newSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
769 |
"create a new signal, using the receiver as a prototype and |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
770 |
setting the parent of the new signal to the receiver." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
771 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
772 |
^ self newSignalMayProceed:self mayProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
773 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
774 |
"Created: / 23.7.1999 / 20:13:23 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
775 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
776 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
777 |
newSignalMayProceed:proceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
778 |
"create a new signal, using the receiver as a prototype and |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
779 |
setting the parent of the new signal to the receiver." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
780 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
781 |
^ (Signal basicNew) mayProceed:proceed; |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
782 |
notifierString:NotifierString; |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
783 |
parent:self |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
784 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
785 |
"Created: / 23.7.1999 / 20:12:43 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
786 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
787 |
|
4562 | 788 |
!GenericException class methodsFor:'printing'! |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
789 |
|
4562 | 790 |
description |
791 |
"return the notifier string. |
|
792 |
If the notifier string starts with space, prepend |
|
793 |
the parents notifier string. |
|
794 |
Subclasses may redefine this method." |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
795 |
|
4562 | 796 |
NotifierString isNil ifTrue:[ |
797 |
^ self name asString |
|
4606 | 798 |
]. |
799 |
(NotifierString startsWith:Character space) ifTrue:[ |
|
800 |
^ self parent description, NotifierString |
|
801 |
]. |
|
802 |
^ NotifierString |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
803 |
|
4562 | 804 |
" |
4606 | 805 |
Object errorSignal description |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
806 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
807 |
|
4562 | 808 |
"Created: / 23.7.1999 / 14:22:25 / stefan" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
809 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
810 |
|
4936 | 811 |
!GenericException class methodsFor:'useful handlers'! |
812 |
||
813 |
abortingEmergencyHandler |
|
814 |
"return a block (usable as an emergency handler), |
|
815 |
which aborts after showing a warnBox. |
|
816 |
This is useful for endUser applications. |
|
817 |
||
818 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
|
819 |
moved there - it is (for now) left here for backward compatibility." |
|
820 |
||
821 |
^ [:ex | self warn:'Error: ' , ex errorString. |
|
822 |
AbortSignal raise |
|
823 |
] |
|
824 |
||
825 |
"test with (try a few halts or CTRL-C's): |
|
826 |
NoHandlerError emergencyHandler:(NoHandlerError abortingEmergencyHandler) |
|
827 |
" |
|
828 |
||
829 |
"back with: |
|
830 |
NoHandlerError emergencyHandler:(NoHandlerError notifyingEmergencyHandler) |
|
831 |
NoHandlerError emergencyHandler:nil |
|
832 |
" |
|
833 |
||
834 |
"Created: 15.1.1997 / 20:13:06 / cg" |
|
835 |
"Modified: 15.1.1997 / 20:15:02 / cg" |
|
836 |
! |
|
837 |
||
838 |
dumpingEmergencyHandler |
|
839 |
"return a block (usable as an emergency handler), |
|
840 |
which dumps the stackBacktrace to a trace file and |
|
841 |
aborts after showing a warnBox. |
|
842 |
This is useful, for endUser application, which are still being |
|
843 |
debugged (i.e. the programmers may have a look at the traceFile |
|
844 |
from time to time). |
|
845 |
||
846 |
Notice: |
|
847 |
The code below is just an example; you may want to change the |
|
848 |
name of the error-file in your application |
|
849 |
(but please: copy the code; do not modify here) |
|
850 |
||
851 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
|
852 |
moved there - it is (for now) left here for backward compatibility." |
|
853 |
||
854 |
^ [:ex | |
|
855 |
|str printedException| |
|
856 |
||
857 |
ex signal == NoHandlerError ifTrue:[ |
|
858 |
printedException := ex parameter. |
|
859 |
] ifFalse:[ |
|
860 |
printedException := ex |
|
861 |
]. |
|
862 |
||
863 |
"/ user interruption is handled specially: |
|
864 |
"/ allow user to choose between proceeding or aborting |
|
865 |
"/ but never dump that information to the file. |
|
866 |
||
867 |
printedException signal == Object userInterruptSignal ifTrue:[ |
|
868 |
(self confirm:'abort current action ?') ifTrue:[ |
|
869 |
AbortSignal raise |
|
870 |
]. |
|
871 |
ex proceedWith:nil |
|
872 |
]. |
|
873 |
||
874 |
"/ |
|
875 |
"/ dump it to 'errorTrace.stx' |
|
876 |
"/ |
|
877 |
str := 'errorTrace.stx' asFilename appendingWriteStream. |
|
878 |
||
879 |
str nextPutLine:('******************************* ' |
|
880 |
, AbsoluteTime now printString |
|
881 |
, ' *******************************'). |
|
882 |
str cr. |
|
883 |
||
884 |
str nextPutLine:('** Error: ' , printedException errorString). |
|
885 |
str nextPutLine:('** Signal: ' , printedException signal printString). |
|
886 |
str nextPutLine:('** Parameter: ' , printedException parameter printString). |
|
887 |
str nextPutLine:('** Process: ' , Processor activeProcess printString). |
|
888 |
str nextPutLine:('** Backtrace:'). |
|
889 |
str cr. |
|
890 |
||
891 |
printedException suspendedContext fullPrintAllOn:str. |
|
892 |
str cr. |
|
893 |
str cr. |
|
894 |
str close. |
|
895 |
||
896 |
"/ send a line to stdErr |
|
897 |
||
898 |
('[warning]: ignored error: ' , printedException errorString) errorPrintCR. |
|
899 |
('[warning]: error information appended to ''errorTrace.stx''') errorPrintCR. |
|
900 |
||
901 |
AbortSignal raise |
|
902 |
] |
|
903 |
||
904 |
"test with (try a few halts or CTRL-C's): |
|
905 |
NoHandlerError emergencyHandler:(NoHandlerError dumpingEmergencyHandler) |
|
906 |
" |
|
907 |
||
908 |
"back with: |
|
909 |
NoHandlerError emergencyHandler:(NoHandlerError notifyingEmergencyHandler) |
|
910 |
NoHandlerError emergencyHandler:nil |
|
911 |
" |
|
912 |
||
913 |
"Created: / 15.1.1997 / 20:14:52 / cg" |
|
914 |
"Modified: / 24.1.1997 / 20:36:21 / cg" |
|
915 |
"Modified: / 4.8.1999 / 08:11:20 / stefan" |
|
916 |
! |
|
917 |
||
918 |
mailingEmergencyHandler |
|
919 |
"return a block (usable as an emergency handler), |
|
920 |
which shows a warnBox and optionally mails a stackBacktrace to a maintainer. |
|
921 |
This is useful, for endUser application, which are still being |
|
922 |
debugged (i.e. the programmers may have a look at the errors). |
|
923 |
||
924 |
Notice: the stuff here is a demonstration only; it should be modified |
|
925 |
for your particular environment ... |
|
926 |
... but please: copy the code and modify there; |
|
927 |
leave the stuff below as it is. |
|
928 |
||
929 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
|
930 |
moved there - it is (for now) left here for backward compatibility." |
|
931 |
||
932 |
^ [:ex | |
|
933 |
|str printedException doMail emergencyMailReceiver pipe| |
|
934 |
||
935 |
ex signal == NoHandlerError ifTrue:[ |
|
936 |
printedException := ex parameter. |
|
937 |
] ifFalse:[ |
|
938 |
printedException := ex |
|
939 |
]. |
|
940 |
||
941 |
"/ user interruption is handled specially: |
|
942 |
"/ allow user to choose between proceeding or aborting |
|
943 |
"/ but never dump that information to the file. |
|
944 |
||
945 |
printedException signal == Object userInterruptSignal ifTrue:[ |
|
946 |
(self confirm:'abort current action ?') ifTrue:[ |
|
947 |
AbortSignal raise |
|
948 |
]. |
|
949 |
ex proceedWith:nil |
|
950 |
]. |
|
951 |
||
952 |
"/ somehow get the name of the guy to receive the mail |
|
953 |
"/ you have to implement that yourself. |
|
954 |
||
955 |
"/ emergencyMailReceiver := OneOfYourClass getEmergencyMailReceiver. |
|
956 |
emergencyMailReceiver := OperatingSystem getLoginName. |
|
957 |
||
958 |
emergencyMailReceiver isNil ifTrue:[ |
|
959 |
self warn:(printedException errorString |
|
960 |
, '\\No mailing to service people possible.') withCRs. |
|
961 |
doMail := false. |
|
962 |
] ifFalse:[ |
|
963 |
doMail := self confirm:(printedException errorString |
|
964 |
, '\\Mail error information to the service people (' |
|
965 |
, emergencyMailReceiver , ') ?') withCRs |
|
966 |
]. |
|
967 |
doMail ifTrue:[ |
|
968 |
str := '' writeStream. |
|
969 |
||
970 |
str nextPutLine:('Error notification from ' |
|
971 |
, OperatingSystem getLoginName |
|
972 |
, '@' |
|
973 |
, OperatingSystem getHostName). |
|
974 |
str cr. |
|
975 |
||
976 |
str nextPutLine:('Time: ' , AbsoluteTime now printString). |
|
977 |
str nextPutLine:('Error: ', printedException errorString). |
|
978 |
str nextPutLine:('Signal: ', printedException signal printString). |
|
979 |
str nextPutLine:('Parameter: ', printedException parameter printString). |
|
980 |
str nextPutLine:('Process: ', Processor activeProcess printString). |
|
981 |
str nextPutLine:'Backtrace:'. |
|
982 |
str cr. |
|
983 |
||
984 |
printedException suspendedContext fullPrintAllOn:str. |
|
985 |
str cr;cr. |
|
986 |
||
987 |
str close. |
|
988 |
||
989 |
pipe := PipeStream |
|
990 |
writingTo:'mail ', emergencyMailReceiver. |
|
991 |
pipe notNil ifTrue:[ |
|
992 |
pipe nextPutLine:'Subject: automatic error report'. |
|
993 |
pipe nextPutAll:str contents. |
|
994 |
pipe cr. |
|
995 |
pipe close. |
|
996 |
] |
|
997 |
]. |
|
998 |
||
999 |
AbortSignal raise |
|
1000 |
] |
|
1001 |
||
1002 |
"test with (try a few halts or CTRL-C's): |
|
1003 |
NoHandlerError emergencyHandler:(Exception mailingEmergencyHandler) |
|
1004 |
" |
|
1005 |
||
1006 |
"back with: |
|
1007 |
NoHandlerError emergencyHandler:(Exception notifyingEmergencyHandler) |
|
1008 |
NoHandlerError emergencyHandler:nil |
|
1009 |
" |
|
1010 |
||
1011 |
"Created: / 15.1.1997 / 20:14:52 / cg" |
|
1012 |
"Modified: / 15.1.1997 / 21:10:28 / cg" |
|
1013 |
"Modified: / 4.8.1999 / 08:11:26 / stefan" |
|
1014 |
! |
|
1015 |
||
1016 |
notifyingEmergencyHandler |
|
1017 |
"return a block (usable as an emergency handler for exceptions), |
|
1018 |
which does errorNotification before going into the debugger. |
|
1019 |
||
1020 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
|
1021 |
moved there - it is (for now) left here for backward compatibility." |
|
1022 |
||
1023 |
^ [:ex | nil errorNotify:ex errorString from:ex suspendedContext ] |
|
1024 |
||
1025 |
"test with (try a few halts or CTRL-C's): |
|
1026 |
Exception emergencyHandler:(Exception notifyingEmergencyHandler) |
|
1027 |
" |
|
1028 |
||
1029 |
"back with: |
|
1030 |
NoHandlerError emergencyHandler:nil |
|
1031 |
" |
|
1032 |
||
1033 |
"Modified: 15.1.1997 / 20:15:12 / cg" |
|
5058
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1034 |
! |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1035 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1036 |
notifyingEmergencyHandlerForUserProcesses |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1037 |
"return a block (usable as an emergency handler for exceptions), |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1038 |
which does errorNotification before going into the debugger, |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1039 |
but only for exceptions occurring in user processes; |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1040 |
systemProcesses are not debugged. |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1041 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1042 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1043 |
moved there - it is (for now) left here for backward compatibility." |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1044 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1045 |
^ [:ex | |
5059 | 1046 |
|
1047 |
|theException| |
|
1048 |
||
5058
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1049 |
Processor activeProcessIsSystemProcess ifTrue:[ |
5061 | 1050 |
'EmergencyHandler [info]: exception cought: ' errorPrint. |
5059 | 1051 |
ex signal == NoHandlerError ifTrue:[ |
1052 |
theException := ex parameter. |
|
1053 |
] ifFalse:[ |
|
1054 |
theException := ex |
|
1055 |
]. |
|
1056 |
theException errorString errorPrintCR. |
|
5058
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1057 |
AbortSignal raise |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1058 |
] ifFalse:[ |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1059 |
nil errorNotify:ex errorString from:ex suspendedContext |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1060 |
] |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1061 |
] |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1062 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1063 |
"test with (try a few halts or CTRL-C's): |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1064 |
Exception emergencyHandler:(Exception notifyingEmergencyHandler) |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1065 |
" |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1066 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1067 |
"back with: |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1068 |
NoHandlerError emergencyHandler:nil |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1069 |
" |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1070 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1071 |
"Modified: 15.1.1997 / 20:15:12 / cg" |
4936 | 1072 |
! ! |
1073 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1074 |
!GenericException methodsFor:'accessing'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1075 |
|
4562 | 1076 |
creator |
1077 |
"return the creator of the exception" |
|
1078 |
||
1079 |
^ signal |
|
1080 |
! |
|
1081 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1082 |
errorString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1083 |
"return the errorString passsed with the signal raise |
4562 | 1084 |
(or nil, if there was none). |
1085 |
#errorString is deprecated, use description instead" |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1086 |
|
4562 | 1087 |
|
1088 |
^ self description |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1089 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1090 |
"Modified: / 12.3.1998 / 15:13:28 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1091 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1092 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1093 |
errorString:aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1094 |
"set the errorString. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1095 |
If it starts with a space, the signals errorString is prepended, |
4562 | 1096 |
if it ends with a space, it is appended. |
1097 |
#errorString: is deprecated, use messageText: instead" |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1098 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1099 |
errorString := aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1100 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1101 |
"Created: / 5.3.1998 / 16:45:29 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1102 |
"Modified: / 12.3.1998 / 15:30:45 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1103 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1104 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1105 |
handlerContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1106 |
"return the context of the handler" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1107 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1108 |
^ handlerContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1109 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1110 |
|
4483 | 1111 |
handlingException |
1112 |
"return the handling exception (or signalSet or Exception). |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1113 |
This is only valid during handler evaluation, and answers |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1114 |
the object which accepted the actual signal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1115 |
(i.e. the parent or signalSet or handlerCollection)" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1116 |
|
4483 | 1117 |
^ handlingException |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1118 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1119 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1120 |
isResumable |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1121 |
"return true, if the exception is resumable" |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1122 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1123 |
^ proceedable |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1124 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1125 |
"Modified: / 2.3.1998 / 12:20:43 / stefan" |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1126 |
! |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1127 |
|
4562 | 1128 |
messageText:aString |
1129 |
"set the messageText. |
|
1130 |
If it starts with a space, the signals errorString is prepended, |
|
1131 |
if it ends with a space, it is appended." |
|
1132 |
||
1133 |
errorString := aString |
|
1134 |
||
1135 |
"Created: / 5.3.1998 / 16:45:29 / stefan" |
|
1136 |
"Modified: / 12.3.1998 / 15:30:45 / stefan" |
|
1137 |
! |
|
1138 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1139 |
originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1140 |
"return the originator passsed with the signal raise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1141 |
(or nil, if there was none)" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1142 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1143 |
^ originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1144 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1145 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1146 |
originator:anObject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1147 |
"set the originator" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1148 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1149 |
originator := anObject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1150 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1151 |
"Created: / 5.3.1998 / 16:34:56 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1152 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1153 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1154 |
parameter |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1155 |
"return the parameter passsed with the signal raise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1156 |
(or nil, if there was none)" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1157 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1158 |
^ parameter |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1159 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1160 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1161 |
parameter:anObject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1162 |
"set the parameter of the exception" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1163 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1164 |
parameter := anObject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1165 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1166 |
"Created: / 5.3.1998 / 16:34:22 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1167 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1168 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1169 |
rejected |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1170 |
"return true, if any other of the exceptions handlers has rejected |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1171 |
Uncertain, if this is really interesting to anybody. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1172 |
This is only valid during handler execution. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1173 |
(i.e. an outer handler can find out, if any other handler has already |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1174 |
rejected). |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1175 |
Currently only used to change the 'unhandled-exception' errorString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1176 |
into 'rejected-exception' for information). |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1177 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1178 |
|
4564 | 1179 |
^ rejected == true |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1180 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1181 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1182 |
signal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1183 |
"return the signal, that caused the exception" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1184 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1185 |
^ signal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1186 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1187 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1188 |
signal:aSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1189 |
"set the signal, that caused the exception" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1190 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1191 |
signal := aSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1192 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1193 |
"Created: / 5.3.1998 / 16:02:46 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1194 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1195 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1196 |
suspendedContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1197 |
"return the context in which the raise occured" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1198 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1199 |
^ suspendedContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1200 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1201 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1202 |
suspendedContext:something |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1203 |
"set the value of the instance variable 'suspendedContext' (automatically generated)" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1204 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1205 |
suspendedContext := something. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1206 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1207 |
"Created: / 2.3.1998 / 12:43:20 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1208 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1209 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1210 |
willProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1211 |
"return true, if the exception is proceedable" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1212 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1213 |
^ self isResumable |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1214 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1215 |
"Modified: / 2.3.1998 / 12:20:43 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1216 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1217 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1218 |
!GenericException methodsFor:'copying'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1219 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1220 |
postCopy |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1221 |
"set the internal state to nil" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1222 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1223 |
suspendedContext := handlerContext := rejected := nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1224 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1225 |
"Created: / 2.3.1998 / 12:30:06 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1226 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1227 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1228 |
!GenericException methodsFor:'default actions'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1229 |
|
4527 | 1230 |
defaultAction |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1231 |
"perform a action for the exception if it hasn't been catched |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1232 |
We arrive here, if either no handler was found, or none of the |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1233 |
handlers did a return (i.e. every handler rejected). |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1234 |
|
4562 | 1235 |
The default is to evaluate the signal's handlerBlock or |
1236 |
to raise the noHandlerSignal. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1237 |
Subclasses may redefine this." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1238 |
|
4562 | 1239 |
|handlerBlock| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1240 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1241 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1242 |
try per signal handler |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1243 |
" |
4562 | 1244 |
(handlerBlock := signal handlerBlock) notNil ifTrue:[ |
1245 |
"... and call it" |
|
1246 |
^ handlerBlock value:self. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1247 |
]. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1248 |
|
4562 | 1249 |
"/ if its a querySignal, ignore it |
1250 |
signal isQuerySignal ifTrue:[^ nil]. |
|
1251 |
^ self noHandler. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1252 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1253 |
"Created: / 23.7.1999 / 14:38:03 / stefan" |
4517
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1254 |
"Modified: / 4.8.1999 / 08:11:05 / stefan" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1255 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1256 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1257 |
mayProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1258 |
"return true, if the exception handler is allowed to proceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1259 |
the execution where the exception occured. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1260 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1261 |
Subclasses may redefine this." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1262 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1263 |
^ signal mayProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1264 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1265 |
"Created: / 23.7.1999 / 14:48:26 / stefan" |
4562 | 1266 |
! |
1267 |
||
1268 |
noHandler |
|
1269 |
"raise the NoHandlerError. |
|
1270 |
NohandlerError redefines this method to avoid recursive invocations" |
|
1271 |
||
4564 | 1272 |
<context: #return> |
1273 |
||
4562 | 1274 |
|msg| |
1275 |
||
4564 | 1276 |
rejected == true ifTrue:[ |
4562 | 1277 |
msg := 'unhandled (rejected)' |
1278 |
] ifFalse:[ |
|
1279 |
msg := 'unhandled' |
|
1280 |
]. |
|
1281 |
msg := msg , ' exception: (' , self errorString , ')'. |
|
4564 | 1282 |
self mayProceed ifTrue:[ |
1283 |
^ NoHandlerError |
|
1284 |
raiseRequestWith:self |
|
1285 |
errorString:msg |
|
1286 |
in:suspendedContext. |
|
1287 |
]. |
|
1288 |
NoHandlerError |
|
1289 |
raiseWith:self |
|
1290 |
errorString:msg |
|
1291 |
in:suspendedContext. |
|
4562 | 1292 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1293 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1294 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1295 |
!GenericException methodsFor:'handler actions'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1296 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1297 |
proceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1298 |
"Continue after the raise - the raise returns nil" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1299 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1300 |
self proceedWith:nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1301 |
|
4556 | 1302 |
"cg: a strange example: |
1303 |
there are two cought errors here - can you spot them ? |
|
1304 |
||
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1305 |
Object errorSignal handle:[:ex| |
4556 | 1306 |
'proceeding' printCR. |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1307 |
ex proceed |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1308 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1309 |
Object errorSignal raiseRequest |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1310 |
]. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1311 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1312 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1313 |
"Modified: / 27.3.1997 / 16:44:39 / cg" |
4517
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1314 |
"Modified: / 4.8.1999 / 08:42:12 / stefan" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1315 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1316 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1317 |
proceedWith:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1318 |
"Continue after the raise - the raise returns value" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1319 |
|
4507 | 1320 |
|con| |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1321 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1322 |
proceedable ifFalse:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1323 |
"proceed from ProceedError to recover from this error" |
4556 | 1324 |
ProceedError raiseRequestWith:self. |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1325 |
proceedable := true. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1326 |
]. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1327 |
|
4556 | 1328 |
thisContext evaluateUnwindActionsUpTo:suspendedContext. |
1329 |
suspendedContext resumeIgnoringErrors:value. |
|
1330 |
||
1331 |
"/ arrive here, if suspended context is not resumable - |
|
1332 |
"/ sigh; resume our raise context ... |
|
1333 |
"/ ... consider this a fallBack kludge, for the case that |
|
1334 |
"/ a raising context is not returnable. |
|
1335 |
||
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1336 |
"/ find my raise context |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1337 |
con := Context findFirstSpecialHandle:false raise:true. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1338 |
[con notNil |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1339 |
and:[con receiver ~~ self]] whileTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1340 |
con := con findSpecialHandle:false raise:true. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1341 |
]. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1342 |
"/ now, have the doCallXXX context at-hand |
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1343 |
con := con sender. |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1344 |
"/ now, have the doRaise context at-hand |
4632 | 1345 |
con := con sender. |
1346 |
"/ now, have the raise context at-hand |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1347 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1348 |
handlerContext := suspendedContext := nil. |
4556 | 1349 |
con resume:value. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1350 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1351 |
"Modified: / 27.3.1997 / 16:45:57 / cg" |
4517
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1352 |
"Modified: / 4.8.1999 / 08:42:17 / stefan" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1353 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1354 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1355 |
reject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1356 |
"handler decided not to handle this signal - |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1357 |
system will look for another handler" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1358 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1359 |
|con| |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1360 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1361 |
"/ find my raise context |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1362 |
con := Context findFirstSpecialHandle:false raise:true. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1363 |
[con notNil |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1364 |
and:[con receiver ~~ self]] whileTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1365 |
con := con findSpecialHandle:false raise:true. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1366 |
]. |
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1367 |
"/ now, have the doCallXXX context at-hand |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1368 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1369 |
rejected := true. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1370 |
con unwind:nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1371 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1372 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1373 |
Object errorSignal handle:[:ex | |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1374 |
'1' printCR. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1375 |
ex reject |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1376 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1377 |
Object errorSignal handle:[:ex | |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1378 |
'2' printCR. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1379 |
ex reject |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1380 |
] do:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1381 |
#() at:1 |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1382 |
] |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1383 |
] |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1384 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1385 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1386 |
|
4556 | 1387 |
resignalAs:anotherException |
1388 |
"resignal anotherException, as if it was raised in the first place" |
|
1389 |
||
1390 |
|con| |
|
1391 |
||
1392 |
con := suspendedContext. |
|
1393 |
||
1394 |
"/ "/ find my raise context |
|
1395 |
"/ con := Context findFirstSpecialHandle:false raise:true. |
|
1396 |
"/ [con notNil |
|
1397 |
"/ and:[con receiver ~~ self]] whileTrue:[ |
|
1398 |
"/ con := con findSpecialHandle:false raise:true. |
|
1399 |
"/ ]. |
|
1400 |
"/ "/ now, have the doCallXXX context at-hand |
|
1401 |
"/ con := con sender. |
|
1402 |
"/ "/ now, have the doRaise context at-hand |
|
1403 |
"/ con := con sender. |
|
1404 |
"/ "/ now, have the raise* context at-hand |
|
1405 |
"/ con := con sender. |
|
1406 |
"/ "/ now, have the raising context at-hand |
|
1407 |
||
1408 |
handlerContext := suspendedContext := nil. |
|
1409 |
con unwindThenDo:[anotherException mayProceed ifTrue:[ |
|
1410 |
anotherException raiseRequest |
|
1411 |
] ifFalse:[ |
|
1412 |
anotherException raise |
|
1413 |
] |
|
1414 |
] |
|
1415 |
||
1416 |
" |
|
1417 |
|rslt n| |
|
1418 |
||
1419 |
Object messageNotUnderstoodSignal handle:[:ex | |
|
1420 |
ex resignalAs:Number divisionByZeroSignal |
|
1421 |
] do:[ |
|
1422 |
rslt := 5 foo |
|
1423 |
]. |
|
1424 |
rslt |
|
1425 |
" |
|
1426 |
! |
|
1427 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1428 |
restart |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1429 |
"restart the handle:do: - usually after some repair work is done |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1430 |
in the handler" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1431 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1432 |
|con| |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1433 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1434 |
con := handlerContext. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1435 |
handlerContext := suspendedContext := nil. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1436 |
con unwindAndRestart |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1437 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1438 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1439 |
|rslt n| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1440 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1441 |
Object errorSignal handle:[:ex | |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1442 |
'fixing divisor ...' printCR. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1443 |
n := 1. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1444 |
ex restart. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1445 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1446 |
rslt := 5 / n. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1447 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1448 |
rslt |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1449 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1450 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1451 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1452 |
restartDo:aBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1453 |
"restart the handle:do: but execute the argument, aBlock instead of the |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1454 |
original do-block - usually after some repair work is done in handler" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1455 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1456 |
|con| |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1457 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1458 |
con := handlerContext. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1459 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1460 |
"/ handlerContext unwindThenDo:[ |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1461 |
"/ handlerContext receiver |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1462 |
"/ handle:(handlerContext argAt:1) |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1463 |
"/ do:aBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1464 |
"/ ]. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1465 |
handlerContext := suspendedContext := nil. |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1466 |
con receiver handlerProtectedBlock:aBlock inContext:con. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1467 |
con unwindAndRestart |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1468 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1469 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1470 |
|sig rslt| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1471 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1472 |
sig := Signal new. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1473 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1474 |
sig handle:[:ex | |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1475 |
ex restartDo:[ rslt := 999 ] |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1476 |
] do:[ |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1477 |
rslt := 0. |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1478 |
sig raise |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1479 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1480 |
Transcript showCR:rslt |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1481 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1482 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1483 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1484 |
|sig rslt| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1485 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1486 |
Object errorSignal handle:[:ex | |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1487 |
ex restartDo:[ rslt := 999 ] |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1488 |
] do:[ |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1489 |
rslt := nil foo. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1490 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1491 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1492 |
Transcript showCR:rslt |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1493 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1494 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1495 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1496 |
|sig rslt| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1497 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1498 |
Object errorSignal handle:[:ex | |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1499 |
ex restartDo:[ 'handler' printCR. rslt := nil foo ] |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1500 |
] do:[ |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1501 |
rslt := nil foo. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1502 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1503 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1504 |
Transcript showCR:rslt |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1505 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1506 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1507 |
"Modified: / 8.11.1997 / 18:52:28 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1508 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1509 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1510 |
resume |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1511 |
"Continue after the raise - the raise returns nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1512 |
obsolete (use #proceed), retained for backwards compatibility" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1513 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1514 |
self obsoleteMethodWarning:'use #proceed'. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1515 |
^ self proceedWith:nil |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1516 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1517 |
"Modified: / 2.3.1998 / 10:51:55 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1518 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1519 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1520 |
resumeWith:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1521 |
"Continue after the raise - the raise returns value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1522 |
obsolete (use #proceedWith:), retained for backwards compatibility" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1523 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1524 |
self obsoleteMethodWarning:'use #proceedWith:'. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1525 |
^ self proceedWith:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1526 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1527 |
"Modified: / 2.3.1998 / 10:51:48 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1528 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1529 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1530 |
return |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1531 |
"Continue after the handle:do: - the handle:do: returns nil" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1532 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1533 |
|con| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1534 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1535 |
con := handlerContext. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1536 |
handlerContext := suspendedContext := nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1537 |
con unwind:nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1538 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1539 |
"Modified: 27.3.1997 / 16:46:39 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1540 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1541 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1542 |
returnDoing:aBlock |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1543 |
"Continue after the handle:do: - the handle:do: returns aBlock value |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1544 |
Be careful when debugging. You cannot see the context with #returnDoing: |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1545 |
in the debugger if aBlock raises a signal" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1546 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1547 |
|con| |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1548 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1549 |
con := handlerContext. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1550 |
handlerContext := suspendedContext := nil. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1551 |
con unwindThenDo:aBlock |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1552 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1553 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1554 |
returnWith:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1555 |
"Continue after the handle:do: - the handle:do: returns value" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1556 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1557 |
|con| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1558 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1559 |
con := handlerContext. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1560 |
handlerContext := suspendedContext := nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1561 |
con unwind:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1562 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1563 |
"Modified: 27.3.1997 / 16:46:51 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1564 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1565 |
|
4562 | 1566 |
!GenericException methodsFor:'printing'! |
1567 |
||
1568 |
description |
|
1569 |
"return the description string of the signal" |
|
1570 |
||
1571 |
errorString isNil ifTrue:[ |
|
1572 |
^ signal description |
|
1573 |
]. |
|
1574 |
(errorString startsWith:Character space) ifTrue:[ |
|
1575 |
^ signal description, errorString. |
|
1576 |
]. |
|
1577 |
(errorString endsWith:Character space) ifTrue:[ |
|
1578 |
^ errorString, signal description. |
|
1579 |
]. |
|
1580 |
||
1581 |
^ errorString |
|
1582 |
||
1583 |
" |
|
1584 |
(Error new messageText:'bla') description |
|
1585 |
(Error new messageText:' bla') description |
|
1586 |
(Error new messageText:'bla ') description |
|
1587 |
" |
|
1588 |
||
1589 |
"Modified: / 12.3.1998 / 15:13:28 / stefan" |
|
1590 |
! ! |
|
1591 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1592 |
!GenericException methodsFor:'private'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1593 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1594 |
doCallAction |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1595 |
"call the action proper |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1596 |
- needed an extra method to have a raise-marked context around |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1597 |
( see implementation of #reject and #proceed)." |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1598 |
|
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1599 |
<context: #return> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1600 |
<exception: #raise> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1601 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
1602 |
"/ thisContext markForRaise. -- same as above pragma |
4527 | 1603 |
^ self defaultAction |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1604 |
! |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1605 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1606 |
doCallHandler:aHandlerBlock |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1607 |
"call the handler proper |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1608 |
- needed an extra method to have a raise-marked context around. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1609 |
( see implementation of #reject and #proceed)." |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1610 |
|
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1611 |
<context: #return> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1612 |
<exception: #raise> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1613 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1614 |
|val| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1615 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
1616 |
"/ thisContext markForRaise. -- same as above pragma |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1617 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1618 |
val := aHandlerBlock value:self. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1619 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1620 |
handler fall through - is just like a returnWith:blocks-value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1621 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1622 |
self returnWith:val |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1623 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1624 |
"Modified: / 26.7.1999 / 14:41:55 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1625 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1626 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1627 |
doRaise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1628 |
"search through the context-calling chain for a handle-context |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1629 |
to the raising signal, a parent of it, or a SignalSet which includes |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1630 |
the raising signal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1631 |
If found, ask the receiver for the handler and evaluate |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1632 |
it with the receiver exception as argument. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1633 |
If no handler is found, perform the default #action method. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1634 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1635 |
ATTENTION: the code below depends on being called by #raise or |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1636 |
#raiseRequest for proper operation (it skips the sending context)." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1637 |
|
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1638 |
<context: #return> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1639 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1640 |
|theContext handler |
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1641 |
theSignal c ex1 sig1 activeHandlers |
4504 | 1642 |
"lastHandler" h r firstHandler searchForHandle| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1643 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1644 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1645 |
"/ is nil a valid originator? If so, we need an extra |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1646 |
"/ instanceVariable to record the originator setting. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1647 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1648 |
originator isNil ifTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1649 |
originator := suspendedContext homeReceiver |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1650 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1651 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1652 |
theSignal := signal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1653 |
theSignal isSignal ifFalse:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1654 |
self halt:'unexpected non-Signal in calling context'. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1655 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1656 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1657 |
"/ 'search handler for: ' print. theSignal displayString printCR. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1658 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1659 |
"/ since the exceptionHandler is evaluated on top of the |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1660 |
"/ contextChain, we must skip active handlers before searching. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1661 |
"/ otherwise, we get into trouble, when re-raising an exception |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1662 |
"/ from within a handler (which would lead to re-executing the |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1663 |
"/ same handler) |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1664 |
"/ the code below collects active handlers ... |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1665 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1666 |
"/ on the fly, look for the first handle - context, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1667 |
"/ and remember it (as firstHandler) to avoid walking the context chain twice |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1668 |
"/ in most cases ... |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1669 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1670 |
firstHandler := nil. |
4504 | 1671 |
searchForHandle := true. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1672 |
|
4504 | 1673 |
c := Context findFirstSpecialHandle:searchForHandle raise:true. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1674 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1675 |
[c notNil] whileTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1676 |
(c isRaiseContext) ifTrue:[ |
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1677 |
ex1 := c receiver. "exception, that has been raised before" |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1678 |
h := ex1 handlerContext. "the context of the previous exception handler" |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1679 |
h notNil ifTrue:[ |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1680 |
sig1 := ex1 signal. "the signal that has been raised before" |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1681 |
(sig1 == theSignal "are we going to raise the same signal again" |
4521 | 1682 |
|
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1683 |
"/ mhmh - if not ==, the raised signal there is not ours, |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1684 |
"/ but the handler could still be for a signalSet, parentSig |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1685 |
"/ or other thingy which accepts our signal. |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1686 |
"/ If we omit that check, a signalSet-handler gets invoked |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1687 |
"/ again by an exception occuring inside its handler. |
4521 | 1688 |
|
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1689 |
"/ to avoid overhead, only do it if the |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1690 |
"/ handlers receiver is not of the signals class... |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1691 |
"/ ...i.e. knowing that most are r handle:do: contexts, |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1692 |
"/ where the receiver is the handling signal. |
4521 | 1693 |
|
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1694 |
"is the signal that has been raised different |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1695 |
from the signal that has been handled?" |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1696 |
or:[(h receiver handlingExceptionInContext:h) ~~ sig1 |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1697 |
and:[ex1 handlingException accepts:theSignal]]) ifTrue:[ |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1698 |
"...and will the previous handler accept the signal |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1699 |
we are going to raise?" |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1700 |
activeHandlers isNil ifTrue:[ |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1701 |
activeHandlers := OrderedCollection new |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1702 |
]. |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1703 |
|
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1704 |
activeHandlers add:h. |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1705 |
"/ lastHandler := h. |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1706 |
c := h. |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1707 |
] |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1708 |
] |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1709 |
] ifFalse:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1710 |
"/ must be a handle context ... |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1711 |
firstHandler := c. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1712 |
searchForHandle := false. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1713 |
]. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1714 |
c := c findSpecialHandle:searchForHandle raise:true. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1715 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1716 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1717 |
h := nil. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1718 |
c := nil. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1719 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1720 |
"/ now, start searching for a handler, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1721 |
"/ start search above the last active handler. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1722 |
"/ Or start with the first handle context, if one |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1723 |
"/ was found as a side effect of the previous handler search. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1724 |
"/ If nil, then there is no handler and we can directly proceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1725 |
"/ to the unhandled code below. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1726 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1727 |
"/ lastHandler notNil ifTrue:[ |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1728 |
"/ theContext := lastHandler. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1729 |
"/ theContext := lastHandler findNextHandleContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1730 |
"/ ] ifFalse:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1731 |
theContext := firstHandler. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1732 |
"/ ]. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1733 |
firstHandler := nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1734 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1735 |
[theContext notNil] whileTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1736 |
"/ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1737 |
"/ ask the Signal instance/Exception class for the handler. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1738 |
"/ nil is returned, if the signal is not accepted |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1739 |
"/ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1740 |
r := theContext receiver. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1741 |
(r notNil and:[(handler := r handlerForSignal:signal |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1742 |
context:theContext |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1743 |
originator:originator) notNil] |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1744 |
) ifTrue:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1745 |
(activeHandlers notNil |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1746 |
and:[activeHandlers includesIdentical:theContext]) ifTrue:[ |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1747 |
"/ 'skip activeHandler: ' print. theContext displayString printCR. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1748 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1749 |
] ifFalse:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1750 |
"call the handler" |
4521 | 1751 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1752 |
handlerContext := theContext. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1753 |
"/ remember the handling signal, sigSet, or exception |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1754 |
"/ for the #accepts: check above |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1755 |
handlingException := r handlingExceptionInContext:theContext. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1756 |
theContext := nil. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1757 |
self doCallHandler:handler. |
4521 | 1758 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1759 |
"/ if the handler rejects, we arrive here |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1760 |
"/ continue search for another handler |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1761 |
theContext := handlerContext. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1762 |
handlerContext := nil. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1763 |
]. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1764 |
]. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1765 |
theContext := theContext findSpecialHandle:true raise:false. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1766 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1767 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1768 |
"/ help GC a bit, by clearing things we no longer need |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1769 |
"/ (especially useful for contexts ...) |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1770 |
activeHandlers := handler := ex1 := firstHandler := nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1771 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1772 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1773 |
we arrive here, if either no handler was found, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1774 |
or every handler rejected. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1775 |
" |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1776 |
^ self doCallAction |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1777 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1778 |
"Created: / 12.5.1996 / 15:09:39 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1779 |
"Modified: / 9.11.1997 / 14:48:44 / cg" |
4504 | 1780 |
"Modified: / 3.8.1999 / 11:20:41 / stefan" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1781 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1782 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1783 |
!GenericException methodsFor:'raising'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1784 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1785 |
raise |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1786 |
"actually raise a non-proceedable exception" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1787 |
|
4556 | 1788 |
<context: #return> |
1789 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1790 |
suspendedContext isNil ifTrue:[ |
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
1791 |
suspendedContext := thisContext sender |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1792 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1793 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1794 |
proceedable := false. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1795 |
^ self doRaise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1796 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1797 |
"Modified: / 12.5.1996 / 15:09:47 / cg" |
4507 | 1798 |
"Modified: / 3.8.1999 / 13:33:01 / stefan" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1799 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1800 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1801 |
raiseRequest |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1802 |
"actually raise a proceedable exception." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1803 |
|
4556 | 1804 |
<context: #return> |
1805 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1806 |
suspendedContext isNil ifTrue:[ |
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
1807 |
suspendedContext := thisContext sender |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1808 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1809 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1810 |
self mayProceed ifFalse:[ |
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
1811 |
"/ proceeding from wrongProceedabilitySignal grants the raiseRequest |
4556 | 1812 |
WrongProceedabilityError raiseRequestWith:signal |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1813 |
]. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1814 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1815 |
proceedable := true. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1816 |
^ self doRaise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1817 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1818 |
"Modified: / 12.5.1996 / 15:09:44 / cg" |
4517
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1819 |
"Modified: / 4.8.1999 / 08:05:12 / stefan" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1820 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1821 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1822 |
!GenericException methodsFor:'setup'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1823 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1824 |
signal:aSignal originator:origin |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1825 |
"set the fields usable for inspection by the handler |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1826 |
- only to be sent from the signal when raising" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1827 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1828 |
signal := aSignal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1829 |
originator := origin. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1830 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1831 |
"Created: / 23.7.1999 / 13:39:35 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1832 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1833 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1834 |
signal:aSignal parameter:aParameter errorString:aString suspendedContext:sContext originator:origin |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1835 |
"set the fields usable for inspection by the handler |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1836 |
- only to be sent from the signal when raising" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1837 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1838 |
signal := aSignal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1839 |
parameter := aParameter. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1840 |
errorString := aString. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1841 |
suspendedContext := sContext. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1842 |
originator := origin. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1843 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1844 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1845 |
!GenericException class methodsFor:'documentation'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1846 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1847 |
version |
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1848 |
^ '$Header: /cvs/stx/stx/libbasic/GenericException.st,v 1.33 2000-01-21 19:59:45 stefan Exp $' |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1849 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1850 |
GenericException initialize! |