author | Claus Gittinger <cg@exept.de> |
Thu, 09 Nov 2000 12:13:29 +0100 | |
changeset 5697 | ce78c7d9ddbd |
parent 5684 | 53cc1d686f03 |
child 5837 | f5510a4c6f75 |
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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"{ Package: 'stx:libbasic' }" |
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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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No other class instance variables are inherited by this class. |
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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 |
! ! |
f3f7e1af7489
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parents:
diff
changeset
|
128 |
|
f3f7e1af7489
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parents:
diff
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|
129 |
!GenericException class methodsFor:'instance creation'! |
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parents:
diff
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|
130 |
|
f3f7e1af7489
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parents:
diff
changeset
|
131 |
signal:aSignal originator:origin |
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parents:
diff
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|
132 |
"create a new instance and set the fields in preparation for a raise. |
f3f7e1af7489
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parents:
diff
changeset
|
133 |
- only to be sent from the signal when raising" |
f3f7e1af7489
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parents:
diff
changeset
|
134 |
|
f3f7e1af7489
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parents:
diff
changeset
|
135 |
"{ Pragma: +inlineNew }" |
f3f7e1af7489
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parents:
diff
changeset
|
136 |
|
f3f7e1af7489
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parents:
diff
changeset
|
137 |
^ (self basicNew) signal:aSignal originator:origin. |
f3f7e1af7489
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parents:
diff
changeset
|
138 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
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parents:
diff
changeset
|
139 |
"Created: / 23.7.1999 / 13:40:45 / stefan" |
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added GenericException in-between, to allow for some exceptions
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parents:
diff
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|
140 |
! |
f3f7e1af7489
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parents:
diff
changeset
|
141 |
|
f3f7e1af7489
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parents:
diff
changeset
|
142 |
signal:aSignal parameter:aParameter errorString:aString suspendedContext:sContext originator:origin |
f3f7e1af7489
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parents:
diff
changeset
|
143 |
"create a new instance and set the fields in preparation for a raise. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
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parents:
diff
changeset
|
144 |
- only to be sent from the signal when raising" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
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parents:
diff
changeset
|
145 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
146 |
"{ Pragma: +inlineNew }" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
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parents:
diff
changeset
|
147 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
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parents:
diff
changeset
|
148 |
^ (self basicNew) |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
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diff
changeset
|
149 |
signal:aSignal |
8349abc6b796
Add #handlerProtectedBlock:inContext
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diff
changeset
|
150 |
parameter:aParameter |
8349abc6b796
Add #handlerProtectedBlock:inContext
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parents:
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diff
changeset
|
151 |
errorString:aString |
8349abc6b796
Add #handlerProtectedBlock:inContext
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parents:
4544
diff
changeset
|
152 |
suspendedContext:sContext |
8349abc6b796
Add #handlerProtectedBlock:inContext
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parents:
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|
153 |
originator:origin. |
4481
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|
154 |
! ! |
f3f7e1af7489
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parents:
diff
changeset
|
155 |
|
5348
8220f8db1cc1
added #signalWith: for ANSI compatibility.
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parents:
5295
diff
changeset
|
156 |
!GenericException class methodsFor:'Compatibility - ANSI'! |
8220f8db1cc1
added #signalWith: for ANSI compatibility.
Claus Gittinger <cg@exept.de>
parents:
5295
diff
changeset
|
157 |
|
5697
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
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parents:
5684
diff
changeset
|
158 |
raiseSignal |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
159 |
"actually raise an exception (whatever the proceedability is)." |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
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parents:
5684
diff
changeset
|
160 |
|
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
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parents:
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diff
changeset
|
161 |
^ self raiseSignal:(self description) with:nil |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
162 |
! |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
163 |
|
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
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parents:
5684
diff
changeset
|
164 |
raiseSignal:errorMessage |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
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parents:
5684
diff
changeset
|
165 |
"actually raise an exception (whatever the proceedability is)." |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
166 |
|
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
167 |
^ self raiseSignal:errorMessage with:nil |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
168 |
! |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
169 |
|
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
170 |
raiseSignal:errorMessage with:aParameter |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
171 |
"actually raise an exception (whatever the proceedability is)." |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
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parents:
5684
diff
changeset
|
172 |
|
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
173 |
self mayProceed ifFalse:[ |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
174 |
^ self raiseWith:aParameter errorString:errorMessage |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
175 |
]. |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
176 |
^ self raiseRequestWith:aParameter errorString:errorMessage |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
177 |
! |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
178 |
|
5348
8220f8db1cc1
added #signalWith: for ANSI compatibility.
Claus Gittinger <cg@exept.de>
parents:
5295
diff
changeset
|
179 |
signalWith:errorString |
8220f8db1cc1
added #signalWith: for ANSI compatibility.
Claus Gittinger <cg@exept.de>
parents:
5295
diff
changeset
|
180 |
self raiseErrorString:errorString |
8220f8db1cc1
added #signalWith: for ANSI compatibility.
Claus Gittinger <cg@exept.de>
parents:
5295
diff
changeset
|
181 |
! ! |
8220f8db1cc1
added #signalWith: for ANSI compatibility.
Claus Gittinger <cg@exept.de>
parents:
5295
diff
changeset
|
182 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
183 |
!GenericException class methodsFor:'Signal constants'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
184 |
|
4517
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
185 |
noHandlerError |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
186 |
|
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
187 |
^ NoHandlerError |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
188 |
|
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
189 |
"Created: / 4.8.1999 / 08:33:35 / stefan" |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
190 |
! |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
191 |
|
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
192 |
proceedError |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
193 |
|
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
194 |
^ ProceedError |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
195 |
|
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
196 |
"Created: / 4.8.1999 / 08:34:30 / stefan" |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
197 |
! |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
198 |
|
4519
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
199 |
recursiveExceptionError |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
200 |
"return the signal used to handle recursive signals in the handlers" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
201 |
|
4519
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
202 |
^ RecursiveExceptionError |
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
203 |
|
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
204 |
"Created: / 4.8.1999 / 09:05:06 / stefan" |
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
205 |
! |
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
206 |
|
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
207 |
recursiveExceptionSignal |
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
208 |
"return the signal used to handle recursive signals in the handlers. |
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
209 |
This is for backward compatinility. Use recursiveExceptionError" |
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
210 |
|
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
211 |
^ RecursiveExceptionError |
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
212 |
|
fb4904d6787b
Implement RecursiveExceptionError. as class based exception.
Stefan Vogel <sv@exept.de>
parents:
4517
diff
changeset
|
213 |
"Modified: / 4.8.1999 / 09:05:59 / stefan" |
4517
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
214 |
! |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
215 |
|
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
216 |
wrongProceedabilityError |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
217 |
|
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
218 |
^ WrongProceedabilityError |
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
219 |
|
8c539600fb63
Implement NoHandlerException etc. as class based exceptions.
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
220 |
"Created: / 4.8.1999 / 08:34:19 / stefan" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
221 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
222 |
|
4562 | 223 |
!GenericException class methodsFor:'accessing'! |
224 |
||
225 |
notifierString:aString |
|
226 |
||
227 |
NotifierString := aString |
|
228 |
! ! |
|
229 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
230 |
!GenericException class methodsFor:'compatibility - accessing'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
231 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
232 |
errorString |
4562 | 233 |
"#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
|
234 |
|
4562 | 235 |
^ self description |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
236 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
237 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
238 |
handlerBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
239 |
"Compatibility with Signal. Class based exeptions do not have a handler |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
240 |
block. They redefine the #action method instead" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
241 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
242 |
^ nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
243 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
244 |
"Created: / 23.7.1999 / 14:43:18 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
245 |
"Modified: / 24.7.1999 / 20:52:10 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
246 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
247 |
|
4562 | 248 |
!GenericException class methodsFor:'compatibility - defaults'! |
249 |
||
250 |
emergencyHandler |
|
251 |
||
252 |
^ NoHandlerError emergencyHandler. |
|
253 |
! |
|
254 |
||
255 |
emergencyHandler:aOneArgBlock |
|
256 |
"set the handler used for unhandled exceptions. |
|
257 |
The default (a nil-handler) leads to a debugger to be shown." |
|
258 |
||
259 |
^ NoHandlerError emergencyHandler:aOneArgBlock. |
|
260 |
||
261 |
"ST-80 behavior of first showing a notifier: |
|
262 |
(I prefer to get right into the debugger, though) |
|
263 |
||
264 |
Exception |
|
265 |
emergencyHandler: |
|
266 |
[:ex | self errorNotify:ex errorString ] |
|
267 |
" |
|
268 |
||
269 |
"ST-X behavior of going right into the debugger: |
|
270 |
||
271 |
Exception |
|
272 |
emergencyHandler:nil |
|
273 |
" |
|
274 |
||
275 |
"automatically aborting current operation, on error: |
|
276 |
(may be useful for end-user apps; make certain, |
|
277 |
you have abortSignal handlers at appropriate places) |
|
278 |
||
279 |
Exception |
|
280 |
emergencyHandler: |
|
281 |
[:ex | Object abortSignal raise. ex return. ] |
|
282 |
" |
|
283 |
||
284 |
"finally, traditional language system behavior; dump core ;-) |
|
285 |
||
286 |
Exception |
|
287 |
emergencyHandler: |
|
288 |
[:ex | Smalltalk exitWithCoreDump. ] |
|
289 |
" |
|
290 |
||
291 |
"Modified: 15.1.1997 / 20:49:06 / cg" |
|
292 |
||
293 |
! ! |
|
294 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
295 |
!GenericException class methodsFor:'compatibility - queries'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
296 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
297 |
accepts:aSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
298 |
"return true, if the receiver accepts the argument, aSignal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
299 |
(i.e. the receiver is aSignal or a parent of it). False otherwise." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
300 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
301 |
|s| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
302 |
|
4527 | 303 |
self == aSignal ifTrue:[^ true]. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
304 |
aSignal isQuerySignal ifTrue:[^ false]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
305 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
306 |
s := aSignal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
307 |
[s notNil] whileTrue:[ |
4527 | 308 |
self == s ifTrue:[^ true]. |
309 |
s := s parent |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
310 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
311 |
^ false |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
312 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
313 |
"Created: / 23.7.1999 / 14:00:47 / stefan" |
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 |
|
4676 | 316 |
exception:anExceptionOrSignal isHandledIn:aContext |
317 |
"return true, if there is a handler for the receiver signal in the |
|
318 |
contextChain starting with aContext." |
|
319 |
||
320 |
|con r| |
|
321 |
||
322 |
con := Context findFirstSpecialHandle:true raise:false. |
|
323 |
[con notNil] whileTrue:[ |
|
324 |
((r := con receiver) notNil |
|
325 |
and:[(r handlerForSignal:anExceptionOrSignal context:con originator:nil) notNil] |
|
326 |
) ifTrue:[ |
|
327 |
"found a handler context" |
|
328 |
^ true |
|
329 |
]. |
|
330 |
con := con findSpecialHandle:true raise:false. |
|
331 |
]. |
|
332 |
^ false |
|
333 |
||
334 |
! |
|
335 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
336 |
handlerForSignal:signal context:theContext originator:originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
337 |
"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
|
338 |
The block is retrieved from aContext. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
339 |
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
|
340 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
341 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
342 |
(theContext selector ~~ #'handle:from:do:' |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
343 |
or:[(theContext argAt:2) == originator]) ifTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
344 |
(self == signal or:[self accepts:signal]) ifTrue:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
345 |
^ theContext argAt:1 |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
346 |
] |
4481
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 |
^ nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
350 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
351 |
"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
|
352 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
353 |
|
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
354 |
handlerProtectedBlock:doBlock inContext:context |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
355 |
"set the handlerProtectedBlock in context" |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
356 |
|
5590 | 357 |
|sel| |
358 |
||
359 |
sel := context selector. |
|
360 |
sel == #handle:do: ifTrue:[ |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
361 |
context argAt:2 put:doBlock. |
5590 | 362 |
] ifFalse:[sel == #handle:from:do: ifTrue:[ |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
363 |
context argAt:3 put:doBlock. |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
364 |
]]. |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
365 |
! |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
366 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
367 |
handlingExceptionInContext:theContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
368 |
"answer the handling exception from aContext." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
369 |
|
5590 | 370 |
|sel| |
371 |
||
372 |
sel := theContext selector. |
|
373 |
(sel == #'handle:from:do:' |
|
374 |
or:[sel == #'handle:do:']) ifTrue:[ |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
375 |
^ theContext receiver |
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 |
^ nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
379 |
! |
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 |
inheritsFrom:anotherSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
382 |
"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
|
383 |
(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
|
384 |
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
|
385 |
the receiver is identical to anotherSignal." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
386 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
387 |
self == anotherSignal ifTrue:[^ false]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
388 |
^ anotherSignal accepts:self |
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 |
"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
|
391 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
392 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
393 |
isHandled |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
394 |
"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
|
395 |
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
|
396 |
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
|
397 |
|
4676 | 398 |
^ 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
|
399 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
400 |
"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
|
401 |
! |
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 |
isHandledIn:aContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
404 |
"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
|
405 |
contextChain starting with aContext." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
406 |
|
4676 | 407 |
^ self exception:self isHandledIn:aContext |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
408 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
409 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
410 |
isQuerySignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
411 |
"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
|
412 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
413 |
^ false |
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 |
"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
|
416 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
417 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
418 |
isSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
419 |
"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
|
420 |
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
|
421 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
422 |
^ true |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
423 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
424 |
"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
|
425 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
426 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
427 |
mayProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
428 |
"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
|
429 |
the execution where the exception occured. |
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 |
Subclasses may redefine this." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
432 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
433 |
^ true |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
434 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
435 |
"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
|
436 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
437 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
438 |
parent |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
439 |
"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
|
440 |
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
|
441 |
existing Signals." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
442 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
443 |
self == GenericException ifTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
444 |
^ nil |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
445 |
]. |
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 |
^ self superclass |
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 |
"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
|
450 |
"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
|
451 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
452 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
453 |
!GenericException class methodsFor:'compatibility - raising'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
454 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
455 |
new |
4496 | 456 |
"{ Pragma: +inlineNew }" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
457 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
458 |
^ self basicNew signal:self. |
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: / 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
|
461 |
"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
|
462 |
! |
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 |
newException |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
465 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
466 |
^ self new |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
467 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
468 |
"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
|
469 |
"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
|
470 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
471 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
472 |
newExceptionFrom:originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
473 |
"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
|
474 |
Set the originator. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
475 |
Subclasses may redefine this method" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
476 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
477 |
^ self new originator:originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
478 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
479 |
"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
|
480 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
481 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
482 |
raise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
483 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
484 |
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
|
485 |
|
4556 | 486 |
<context: #return> |
487 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
488 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
489 |
suspendedContext:thisContext sender; |
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 / 16:36:23 / cg" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
493 |
"Modified: / 5.3.1998 / 16:44:36 / stefan" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
494 |
"Created: / 23.7.1999 / 14:07:17 / 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 |
raiseErrorString:aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
498 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
499 |
The argument 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 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
503 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
504 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
505 |
errorString:aString; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
506 |
raise. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
507 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
508 |
"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
|
509 |
"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
|
510 |
"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
|
511 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
512 |
|
5684 | 513 |
raiseErrorString:aString in:aContext |
514 |
"raise a signal nonproceedable. |
|
515 |
The argument is used as errorString." |
|
516 |
||
517 |
<context: #return> |
|
518 |
||
519 |
^ self newException |
|
520 |
suspendedContext:aContext; |
|
521 |
errorString:aString; |
|
522 |
raise. |
|
523 |
||
524 |
"Modified: / 9.5.1996 / 15:17:59 / cg" |
|
525 |
"Modified: / 12.3.1998 / 15:15:22 / stefan" |
|
526 |
"Created: / 23.7.1999 / 14:07:33 / stefan" |
|
527 |
! |
|
528 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
529 |
raiseFrom:something |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
530 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
531 |
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
|
532 |
|
4556 | 533 |
<context: #return> |
534 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
535 |
^ (self newExceptionFrom:something) |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
536 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
537 |
parameter:something; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
538 |
raise |
4481
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 |
"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
|
541 |
"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
|
542 |
"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
|
543 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
544 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
545 |
raiseRequest |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
546 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
547 |
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
|
548 |
|
4556 | 549 |
<context: #return> |
550 |
||
551 |
^ self newException |
|
552 |
suspendedContext:thisContext sender; |
|
553 |
raiseRequest. |
|
4481
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 |
"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
|
556 |
"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
|
557 |
"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
|
558 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
559 |
|
4758
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
560 |
raiseRequestErrorString:aString |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
561 |
"raise a signal proceedable. |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
562 |
The argument, aString is used as errorString." |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
563 |
|
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
564 |
<context: #return> |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
565 |
|
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
566 |
^ self newException |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
567 |
suspendedContext:thisContext sender; |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
568 |
errorString:aString; |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
569 |
raiseRequest |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
570 |
! |
91b5a25f29c5
added #raiseRequestErrorString
Claus Gittinger <cg@exept.de>
parents:
4676
diff
changeset
|
571 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
572 |
raiseRequestFrom:something |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
573 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
574 |
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
|
575 |
|
4556 | 576 |
<context: #return> |
577 |
||
578 |
^ (self newExceptionFrom:something) |
|
579 |
suspendedContext:thisContext sender; |
|
580 |
parameter:something; |
|
581 |
raiseRequest. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
582 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
583 |
"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
|
584 |
"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
|
585 |
"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
|
586 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
587 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
588 |
raiseRequestWith:aParameter |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
589 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
590 |
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
|
591 |
|
4556 | 592 |
<context: #return> |
593 |
||
594 |
^ self newException |
|
595 |
suspendedContext:thisContext sender; |
|
596 |
parameter:aParameter; |
|
597 |
raiseRequest. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
598 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
599 |
"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
|
600 |
"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
|
601 |
"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
|
602 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
603 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
604 |
raiseRequestWith:aParameter errorString:aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
605 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
606 |
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
|
607 |
|
4556 | 608 |
<context: #return> |
609 |
||
610 |
^ self newException |
|
611 |
suspendedContext:thisContext sender; |
|
612 |
parameter:aParameter; |
|
613 |
errorString:aString; |
|
614 |
raiseRequest |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
615 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
616 |
"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
|
617 |
"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
|
618 |
"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
|
619 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
620 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
621 |
raiseRequestWith:aParameter errorString:aString in:aContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
622 |
"raise a signal proceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
623 |
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
|
624 |
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
|
625 |
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
|
626 |
|
4556 | 627 |
^ self newException |
628 |
parameter:aParameter; |
|
629 |
errorString:aString; |
|
630 |
suspendedContext:aContext; |
|
631 |
raiseRequest |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
632 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
633 |
"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
|
634 |
"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
|
635 |
"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
|
636 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
637 |
|
5259 | 638 |
raiseRequestWith:aParameter in:aContext |
639 |
"raise a signal proceedable. |
|
640 |
The additional context is passed as the context responsible for the raise, |
|
641 |
allowing a raise to mimicri the exception happened somewhere else." |
|
642 |
||
643 |
^ self newException |
|
644 |
parameter:aParameter; |
|
645 |
suspendedContext:aContext; |
|
646 |
raiseRequest |
|
647 |
||
648 |
! |
|
649 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
650 |
raiseWith:aParameter |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
651 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
652 |
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
|
653 |
|
4556 | 654 |
<context: #return> |
655 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
656 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
657 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
658 |
parameter:aParameter; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
659 |
raise. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
660 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
661 |
"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
|
662 |
"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
|
663 |
"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
|
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 |
raiseWith:aParameter errorString:aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
667 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
668 |
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
|
669 |
as exception parameter." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
670 |
|
4556 | 671 |
<context: #return> |
672 |
||
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
673 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
674 |
suspendedContext:thisContext sender; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
675 |
parameter:aParameter; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
676 |
errorString:aString; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
677 |
raise. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
678 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
679 |
"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
|
680 |
"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
|
681 |
"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
|
682 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
683 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
684 |
raiseWith:aParameter errorString:aString in:aContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
685 |
"raise a signal nonproceedable. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
686 |
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
|
687 |
as exception parameter. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
688 |
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
|
689 |
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
|
690 |
|
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
691 |
^ self newException |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
692 |
parameter:aParameter; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
693 |
errorString:aString; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
694 |
suspendedContext:aContext; |
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
695 |
raise. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
696 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
697 |
"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
|
698 |
"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
|
699 |
"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
|
700 |
! ! |
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 |
!GenericException class methodsFor:'compatibility - save evaluation'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
703 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
704 |
catch:aBlock |
4496 | 705 |
"evaluate the argument, aBlock. |
706 |
If the receiver-signal is raised during evaluation, abort |
|
707 |
the evaluation and return true; otherwise return false. |
|
708 |
This is the catch & throw mechanism found in other languages, |
|
709 |
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
|
710 |
|
4496 | 711 |
|raiseOccurred| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
712 |
|
4496 | 713 |
raiseOccurred := false. |
714 |
self handle:[:ex | raiseOccurred := true. ex return] do:aBlock. |
|
715 |
^ raiseOccurred |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
716 |
|
4496 | 717 |
" |
718 |
Object messageNotUnderstoodSignal catch:[ |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
719 |
123 size open |
4496 | 720 |
] |
721 |
" |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
722 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
723 |
"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
|
724 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
725 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
726 |
handle:handleBlock do:aBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
727 |
"evaluate the argument, aBlock. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
728 |
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
|
729 |
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
|
730 |
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
|
731 |
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
|
732 |
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
|
733 |
aBlock." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
734 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
735 |
<context: #return> |
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
736 |
<exception: #handle> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
737 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
738 |
"/ thisContext markForHandle. -- same as above pragma |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
739 |
^ 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
|
740 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
741 |
" |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
742 |
Object messageNotUnderstoodSignal handle:[:ex | |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
743 |
'oops' printNL. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
744 |
ex return |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
745 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
746 |
123 size open |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
747 |
] |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
748 |
" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
749 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
750 |
" |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
751 |
|num| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
752 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
753 |
num := 0. |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
754 |
Number divisionByZeroSignal handle:[:ex | |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
755 |
'oops' printNL. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
756 |
ex return |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
757 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
758 |
123 / num |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
759 |
] |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
760 |
" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
761 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
762 |
"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
|
763 |
"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
|
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 |
handle:handleBlock from:anObject do:aBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
767 |
"evaluate the argument, aBlock. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
768 |
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
|
769 |
and the exception originated from anObject, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
770 |
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
|
771 |
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
|
772 |
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
|
773 |
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
|
774 |
aBlock." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
775 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
776 |
<context: #return> |
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
777 |
<exception: #handle> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
778 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
779 |
"/ thisContext markForHandle. -- same as above pragma |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
780 |
^ 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
|
781 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
782 |
" |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
783 |
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
|
784 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
785 |
|o1 o2| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
786 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
787 |
o1 := 123. |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
788 |
o2 := nil. |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
789 |
Object messageNotUnderstoodSignal |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
790 |
handle: |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
791 |
[:ex | |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
792 |
'oops' printNL. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
793 |
ex proceed |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
794 |
] |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
795 |
from:o1 |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
796 |
do: |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
797 |
[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
798 |
o1 open. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
799 |
o2 open |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
800 |
] |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
801 |
" |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
802 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
803 |
"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
|
804 |
"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
|
805 |
! |
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 |
ignoreIn:aBlock |
4496 | 808 |
"evaluate the argument, aBlock. |
809 |
Ignore the receiver-signal during evaluation - i.e. simply |
|
810 |
continue. |
|
811 |
This makes only sense for some signals, such as UserInterrupt |
|
812 |
or AbortSignal, because continuing after an exception without any cleanup |
|
813 |
often leads to followup-errors." |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
814 |
|
4496 | 815 |
^ 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
|
816 |
|
4496 | 817 |
" |
818 |
Object messageNotUnderstoodSignal ignoreIn:[ |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
819 |
123 size open |
4496 | 820 |
] |
821 |
" |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
822 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
823 |
"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
|
824 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
825 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
826 |
!GenericException class methodsFor:'compatibility - signal creation'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
827 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
828 |
newSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
829 |
"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
|
830 |
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
|
831 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
832 |
^ self newSignalMayProceed:self mayProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
833 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
834 |
"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
|
835 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
836 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
837 |
newSignalMayProceed:proceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
838 |
"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
|
839 |
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
|
840 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
841 |
^ (Signal basicNew) mayProceed:proceed; |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
842 |
notifierString:NotifierString; |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
843 |
parent:self |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
844 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
845 |
"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
|
846 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
847 |
|
4562 | 848 |
!GenericException class methodsFor:'printing'! |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
849 |
|
4562 | 850 |
description |
851 |
"return the notifier string. |
|
852 |
If the notifier string starts with space, prepend |
|
853 |
the parents notifier string. |
|
854 |
Subclasses may redefine this method." |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
855 |
|
4562 | 856 |
NotifierString isNil ifTrue:[ |
857 |
^ self name asString |
|
4606 | 858 |
]. |
859 |
(NotifierString startsWith:Character space) ifTrue:[ |
|
860 |
^ self parent description, NotifierString |
|
861 |
]. |
|
862 |
^ NotifierString |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
863 |
|
4562 | 864 |
" |
4606 | 865 |
Object errorSignal description |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
866 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
867 |
|
4562 | 868 |
"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
|
869 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
870 |
|
4936 | 871 |
!GenericException class methodsFor:'useful handlers'! |
872 |
||
873 |
abortingEmergencyHandler |
|
874 |
"return a block (usable as an emergency handler), |
|
875 |
which aborts after showing a warnBox. |
|
876 |
This is useful for endUser applications. |
|
877 |
||
878 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
|
879 |
moved there - it is (for now) left here for backward compatibility." |
|
880 |
||
5295 | 881 |
^ [:ex | self warn:'Error: ' , ex description. |
4936 | 882 |
AbortSignal raise |
883 |
] |
|
884 |
||
885 |
"test with (try a few halts or CTRL-C's): |
|
886 |
NoHandlerError emergencyHandler:(NoHandlerError abortingEmergencyHandler) |
|
887 |
" |
|
888 |
||
889 |
"back with: |
|
890 |
NoHandlerError emergencyHandler:(NoHandlerError notifyingEmergencyHandler) |
|
891 |
NoHandlerError emergencyHandler:nil |
|
892 |
" |
|
893 |
||
894 |
"Created: 15.1.1997 / 20:13:06 / cg" |
|
895 |
"Modified: 15.1.1997 / 20:15:02 / cg" |
|
896 |
! |
|
897 |
||
898 |
dumpingEmergencyHandler |
|
899 |
"return a block (usable as an emergency handler), |
|
900 |
which dumps the stackBacktrace to a trace file and |
|
901 |
aborts after showing a warnBox. |
|
902 |
This is useful, for endUser application, which are still being |
|
903 |
debugged (i.e. the programmers may have a look at the traceFile |
|
904 |
from time to time). |
|
905 |
||
906 |
Notice: |
|
907 |
The code below is just an example; you may want to change the |
|
908 |
name of the error-file in your application |
|
909 |
(but please: copy the code; do not modify here) |
|
910 |
||
911 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
|
912 |
moved there - it is (for now) left here for backward compatibility." |
|
913 |
||
914 |
^ [:ex | |
|
915 |
|str printedException| |
|
916 |
||
917 |
ex signal == NoHandlerError ifTrue:[ |
|
918 |
printedException := ex parameter. |
|
919 |
] ifFalse:[ |
|
920 |
printedException := ex |
|
921 |
]. |
|
922 |
||
923 |
"/ user interruption is handled specially: |
|
924 |
"/ allow user to choose between proceeding or aborting |
|
925 |
"/ but never dump that information to the file. |
|
926 |
||
927 |
printedException signal == Object userInterruptSignal ifTrue:[ |
|
928 |
(self confirm:'abort current action ?') ifTrue:[ |
|
929 |
AbortSignal raise |
|
930 |
]. |
|
931 |
ex proceedWith:nil |
|
932 |
]. |
|
933 |
||
934 |
"/ |
|
935 |
"/ dump it to 'errorTrace.stx' |
|
936 |
"/ |
|
937 |
str := 'errorTrace.stx' asFilename appendingWriteStream. |
|
938 |
||
939 |
str nextPutLine:('******************************* ' |
|
940 |
, AbsoluteTime now printString |
|
941 |
, ' *******************************'). |
|
942 |
str cr. |
|
943 |
||
5295 | 944 |
str nextPutLine:('** Error: ' , printedException description). |
4936 | 945 |
str nextPutLine:('** Signal: ' , printedException signal printString). |
946 |
str nextPutLine:('** Parameter: ' , printedException parameter printString). |
|
947 |
str nextPutLine:('** Process: ' , Processor activeProcess printString). |
|
948 |
str nextPutLine:('** Backtrace:'). |
|
949 |
str cr. |
|
950 |
||
951 |
printedException suspendedContext fullPrintAllOn:str. |
|
952 |
str cr. |
|
953 |
str cr. |
|
954 |
str close. |
|
955 |
||
956 |
"/ send a line to stdErr |
|
957 |
||
5295 | 958 |
('[warning]: ignored error: ' , printedException description) errorPrintCR. |
4936 | 959 |
('[warning]: error information appended to ''errorTrace.stx''') errorPrintCR. |
960 |
||
961 |
AbortSignal raise |
|
962 |
] |
|
963 |
||
964 |
"test with (try a few halts or CTRL-C's): |
|
965 |
NoHandlerError emergencyHandler:(NoHandlerError dumpingEmergencyHandler) |
|
966 |
" |
|
967 |
||
968 |
"back with: |
|
969 |
NoHandlerError emergencyHandler:(NoHandlerError notifyingEmergencyHandler) |
|
970 |
NoHandlerError emergencyHandler:nil |
|
971 |
" |
|
972 |
||
973 |
"Created: / 15.1.1997 / 20:14:52 / cg" |
|
974 |
"Modified: / 24.1.1997 / 20:36:21 / cg" |
|
975 |
"Modified: / 4.8.1999 / 08:11:20 / stefan" |
|
976 |
! |
|
977 |
||
978 |
mailingEmergencyHandler |
|
979 |
"return a block (usable as an emergency handler), |
|
980 |
which shows a warnBox and optionally mails a stackBacktrace to a maintainer. |
|
981 |
This is useful, for endUser application, which are still being |
|
982 |
debugged (i.e. the programmers may have a look at the errors). |
|
983 |
||
984 |
Notice: the stuff here is a demonstration only; it should be modified |
|
985 |
for your particular environment ... |
|
986 |
... but please: copy the code and modify there; |
|
987 |
leave the stuff below as it is. |
|
988 |
||
989 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
|
990 |
moved there - it is (for now) left here for backward compatibility." |
|
991 |
||
992 |
^ [:ex | |
|
993 |
|str printedException doMail emergencyMailReceiver pipe| |
|
994 |
||
995 |
ex signal == NoHandlerError ifTrue:[ |
|
996 |
printedException := ex parameter. |
|
997 |
] ifFalse:[ |
|
998 |
printedException := ex |
|
999 |
]. |
|
1000 |
||
1001 |
"/ user interruption is handled specially: |
|
1002 |
"/ allow user to choose between proceeding or aborting |
|
1003 |
"/ but never dump that information to the file. |
|
1004 |
||
1005 |
printedException signal == Object userInterruptSignal ifTrue:[ |
|
1006 |
(self confirm:'abort current action ?') ifTrue:[ |
|
1007 |
AbortSignal raise |
|
1008 |
]. |
|
1009 |
ex proceedWith:nil |
|
1010 |
]. |
|
1011 |
||
1012 |
"/ somehow get the name of the guy to receive the mail |
|
1013 |
"/ you have to implement that yourself. |
|
1014 |
||
1015 |
"/ emergencyMailReceiver := OneOfYourClass getEmergencyMailReceiver. |
|
1016 |
emergencyMailReceiver := OperatingSystem getLoginName. |
|
1017 |
||
1018 |
emergencyMailReceiver isNil ifTrue:[ |
|
5295 | 1019 |
self warn:(printedException description |
4936 | 1020 |
, '\\No mailing to service people possible.') withCRs. |
1021 |
doMail := false. |
|
1022 |
] ifFalse:[ |
|
5295 | 1023 |
doMail := self confirm:(printedException description |
4936 | 1024 |
, '\\Mail error information to the service people (' |
1025 |
, emergencyMailReceiver , ') ?') withCRs |
|
1026 |
]. |
|
1027 |
doMail ifTrue:[ |
|
1028 |
str := '' writeStream. |
|
1029 |
||
1030 |
str nextPutLine:('Error notification from ' |
|
1031 |
, OperatingSystem getLoginName |
|
1032 |
, '@' |
|
1033 |
, OperatingSystem getHostName). |
|
1034 |
str cr. |
|
1035 |
||
1036 |
str nextPutLine:('Time: ' , AbsoluteTime now printString). |
|
5295 | 1037 |
str nextPutLine:('Error: ', printedException description). |
4936 | 1038 |
str nextPutLine:('Signal: ', printedException signal printString). |
1039 |
str nextPutLine:('Parameter: ', printedException parameter printString). |
|
1040 |
str nextPutLine:('Process: ', Processor activeProcess printString). |
|
1041 |
str nextPutLine:'Backtrace:'. |
|
1042 |
str cr. |
|
1043 |
||
1044 |
printedException suspendedContext fullPrintAllOn:str. |
|
1045 |
str cr;cr. |
|
1046 |
||
1047 |
str close. |
|
1048 |
||
1049 |
pipe := PipeStream |
|
1050 |
writingTo:'mail ', emergencyMailReceiver. |
|
1051 |
pipe notNil ifTrue:[ |
|
1052 |
pipe nextPutLine:'Subject: automatic error report'. |
|
1053 |
pipe nextPutAll:str contents. |
|
1054 |
pipe cr. |
|
1055 |
pipe close. |
|
1056 |
] |
|
1057 |
]. |
|
1058 |
||
1059 |
AbortSignal raise |
|
1060 |
] |
|
1061 |
||
1062 |
"test with (try a few halts or CTRL-C's): |
|
1063 |
NoHandlerError emergencyHandler:(Exception mailingEmergencyHandler) |
|
1064 |
" |
|
1065 |
||
1066 |
"back with: |
|
1067 |
NoHandlerError emergencyHandler:(Exception notifyingEmergencyHandler) |
|
1068 |
NoHandlerError emergencyHandler:nil |
|
1069 |
" |
|
1070 |
||
1071 |
"Created: / 15.1.1997 / 20:14:52 / cg" |
|
1072 |
"Modified: / 15.1.1997 / 21:10:28 / cg" |
|
1073 |
"Modified: / 4.8.1999 / 08:11:26 / stefan" |
|
1074 |
! |
|
1075 |
||
1076 |
notifyingEmergencyHandler |
|
1077 |
"return a block (usable as an emergency handler for exceptions), |
|
1078 |
which does errorNotification before going into the debugger. |
|
1079 |
||
1080 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
|
1081 |
moved there - it is (for now) left here for backward compatibility." |
|
1082 |
||
5295 | 1083 |
^ [:ex | nil errorNotify:ex description from:ex suspendedContext ] |
4936 | 1084 |
|
1085 |
"test with (try a few halts or CTRL-C's): |
|
1086 |
Exception emergencyHandler:(Exception notifyingEmergencyHandler) |
|
1087 |
" |
|
1088 |
||
1089 |
"back with: |
|
1090 |
NoHandlerError emergencyHandler:nil |
|
1091 |
" |
|
1092 |
||
1093 |
"Modified: 15.1.1997 / 20:15:12 / cg" |
|
5058
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1094 |
! |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1095 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1096 |
notifyingEmergencyHandlerForUserProcesses |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1097 |
"return a block (usable as an emergency handler for exceptions), |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1098 |
which does errorNotification before going into the debugger, |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1099 |
but only for exceptions occurring in user processes; |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1100 |
systemProcesses are not debugged. |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1101 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1102 |
WARNING: this method belongs to NoHandlerError, and may eventually be |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1103 |
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
|
1104 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1105 |
^ [:ex | |
5059 | 1106 |
|
1107 |
|theException| |
|
1108 |
||
5058
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1109 |
Processor activeProcessIsSystemProcess ifTrue:[ |
5061 | 1110 |
'EmergencyHandler [info]: exception cought: ' errorPrint. |
5059 | 1111 |
ex signal == NoHandlerError ifTrue:[ |
1112 |
theException := ex parameter. |
|
1113 |
] ifFalse:[ |
|
1114 |
theException := ex |
|
1115 |
]. |
|
5295 | 1116 |
theException description errorPrintCR. |
5058
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1117 |
AbortSignal raise |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1118 |
] ifFalse:[ |
5295 | 1119 |
nil errorNotify:ex description from:ex suspendedContext |
5058
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1120 |
] |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1121 |
] |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1122 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1123 |
"test with (try a few halts or CTRL-C's): |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1124 |
Exception emergencyHandler:(Exception notifyingEmergencyHandler) |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1125 |
" |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1126 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1127 |
"back with: |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1128 |
NoHandlerError emergencyHandler:nil |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1129 |
" |
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1130 |
|
42e732f3497c
added another useful handler
Claus Gittinger <cg@exept.de>
parents:
4936
diff
changeset
|
1131 |
"Modified: 15.1.1997 / 20:15:12 / cg" |
4936 | 1132 |
! ! |
1133 |
||
5680 | 1134 |
!GenericException methodsFor:'Compatibility - ANSI'! |
1135 |
||
1136 |
signalWith:errorString |
|
5697
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1137 |
^ self raiseErrorString:errorString |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1138 |
! ! |
5680 | 1139 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1140 |
!GenericException methodsFor:'accessing'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1141 |
|
4562 | 1142 |
creator |
1143 |
"return the creator of the exception" |
|
1144 |
||
1145 |
^ signal |
|
1146 |
! |
|
1147 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1148 |
errorString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1149 |
"return the errorString passsed with the signal raise |
4562 | 1150 |
(or nil, if there was none). |
1151 |
#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
|
1152 |
|
4562 | 1153 |
|
1154 |
^ self description |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1155 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1156 |
"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
|
1157 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1158 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1159 |
errorString:aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1160 |
"set the errorString. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1161 |
If it starts with a space, the signals errorString is prepended, |
4562 | 1162 |
if it ends with a space, it is appended. |
1163 |
#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
|
1164 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1165 |
errorString := aString |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1166 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1167 |
"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
|
1168 |
"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
|
1169 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1170 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1171 |
handlerContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1172 |
"return the context of the handler" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1173 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1174 |
^ handlerContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1175 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1176 |
|
4483 | 1177 |
handlingException |
1178 |
"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
|
1179 |
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
|
1180 |
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
|
1181 |
(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
|
1182 |
|
4483 | 1183 |
^ handlingException |
4481
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 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1186 |
isResumable |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1187 |
"return true, if the exception is resumable" |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1188 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1189 |
^ proceedable |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1190 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1191 |
"Modified: / 2.3.1998 / 12:20:43 / stefan" |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1192 |
! |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1193 |
|
4562 | 1194 |
messageText:aString |
1195 |
"set the messageText. |
|
1196 |
If it starts with a space, the signals errorString is prepended, |
|
1197 |
if it ends with a space, it is appended." |
|
1198 |
||
1199 |
errorString := aString |
|
1200 |
||
1201 |
"Created: / 5.3.1998 / 16:45:29 / stefan" |
|
1202 |
"Modified: / 12.3.1998 / 15:30:45 / stefan" |
|
1203 |
! |
|
1204 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1205 |
originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1206 |
"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
|
1207 |
(or nil, if there was none)" |
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 |
^ originator |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1210 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1211 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1212 |
originator:anObject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1213 |
"set the originator" |
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 |
originator := anObject |
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 |
"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
|
1218 |
! |
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 |
parameter |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1221 |
"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
|
1222 |
(or nil, if there was none)" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1223 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1224 |
^ parameter |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1225 |
! |
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 |
parameter:anObject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1228 |
"set the parameter of the exception" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1229 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1230 |
parameter := anObject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1231 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1232 |
"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
|
1233 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1234 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1235 |
rejected |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1236 |
"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
|
1237 |
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
|
1238 |
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
|
1239 |
(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
|
1240 |
rejected). |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1241 |
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
|
1242 |
into 'rejected-exception' for information). |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1243 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1244 |
|
4564 | 1245 |
^ rejected == true |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1246 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1247 |
|
5697
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1248 |
searchFrom:raisingContext |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1249 |
suspendedContext := raisingContext |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1250 |
! |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1251 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1252 |
signal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1253 |
"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
|
1254 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1255 |
^ signal |
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 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1258 |
signal:aSignal |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1259 |
"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
|
1260 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1261 |
signal := aSignal |
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 |
"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
|
1264 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1265 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1266 |
suspendedContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1267 |
"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
|
1268 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1269 |
^ suspendedContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1270 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1271 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1272 |
suspendedContext:something |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1273 |
"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
|
1274 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1275 |
suspendedContext := something. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1276 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1277 |
"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
|
1278 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1279 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1280 |
willProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1281 |
"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
|
1282 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1283 |
^ self isResumable |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1284 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1285 |
"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
|
1286 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1287 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1288 |
!GenericException methodsFor:'copying'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1289 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1290 |
postCopy |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1291 |
"set the internal state to nil" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1292 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1293 |
suspendedContext := handlerContext := rejected := nil |
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 |
"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
|
1296 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1297 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1298 |
!GenericException methodsFor:'default actions'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1299 |
|
4527 | 1300 |
defaultAction |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1301 |
"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
|
1302 |
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
|
1303 |
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
|
1304 |
|
4562 | 1305 |
The default is to evaluate the signal's handlerBlock or |
1306 |
to raise the noHandlerSignal. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1307 |
Subclasses may redefine this." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1308 |
|
4562 | 1309 |
|handlerBlock| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1310 |
|
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 |
try per signal handler |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1313 |
" |
4562 | 1314 |
(handlerBlock := signal handlerBlock) notNil ifTrue:[ |
1315 |
"... and call it" |
|
1316 |
^ handlerBlock value:self. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1317 |
]. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1318 |
|
4562 | 1319 |
"/ if its a querySignal, ignore it |
1320 |
signal isQuerySignal ifTrue:[^ nil]. |
|
1321 |
^ self noHandler. |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1322 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1323 |
"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
|
1324 |
"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
|
1325 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1326 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1327 |
mayProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1328 |
"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
|
1329 |
the execution where the exception occured. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1330 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1331 |
Subclasses may redefine this." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1332 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1333 |
^ signal mayProceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1334 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1335 |
"Created: / 23.7.1999 / 14:48:26 / stefan" |
4562 | 1336 |
! |
1337 |
||
1338 |
noHandler |
|
1339 |
"raise the NoHandlerError. |
|
1340 |
NohandlerError redefines this method to avoid recursive invocations" |
|
1341 |
||
4564 | 1342 |
<context: #return> |
1343 |
||
4562 | 1344 |
|msg| |
1345 |
||
4564 | 1346 |
rejected == true ifTrue:[ |
4562 | 1347 |
msg := 'unhandled (rejected)' |
1348 |
] ifFalse:[ |
|
1349 |
msg := 'unhandled' |
|
1350 |
]. |
|
5295 | 1351 |
msg := msg , ' exception: (' , self description , ')'. |
4564 | 1352 |
self mayProceed ifTrue:[ |
1353 |
^ NoHandlerError |
|
1354 |
raiseRequestWith:self |
|
1355 |
errorString:msg |
|
1356 |
in:suspendedContext. |
|
1357 |
]. |
|
1358 |
NoHandlerError |
|
1359 |
raiseWith:self |
|
1360 |
errorString:msg |
|
1361 |
in:suspendedContext. |
|
4562 | 1362 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1363 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1364 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1365 |
!GenericException methodsFor:'handler actions'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1366 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1367 |
proceed |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1368 |
"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
|
1369 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1370 |
self proceedWith:nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1371 |
|
4556 | 1372 |
"cg: a strange example: |
1373 |
there are two cought errors here - can you spot them ? |
|
1374 |
||
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1375 |
Object errorSignal handle:[:ex| |
4556 | 1376 |
'proceeding' printCR. |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1377 |
ex proceed |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1378 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1379 |
Object errorSignal raiseRequest |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1380 |
]. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1381 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1382 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1383 |
"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
|
1384 |
"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
|
1385 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1386 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1387 |
proceedWith:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1388 |
"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
|
1389 |
|
4507 | 1390 |
|con| |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1391 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1392 |
proceedable ifFalse:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1393 |
"proceed from ProceedError to recover from this error" |
4556 | 1394 |
ProceedError raiseRequestWith:self. |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1395 |
proceedable := true. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1396 |
]. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1397 |
|
4556 | 1398 |
thisContext evaluateUnwindActionsUpTo:suspendedContext. |
1399 |
suspendedContext resumeIgnoringErrors:value. |
|
1400 |
||
1401 |
"/ arrive here, if suspended context is not resumable - |
|
1402 |
"/ sigh; resume our raise context ... |
|
1403 |
"/ ... consider this a fallBack kludge, for the case that |
|
1404 |
"/ a raising context is not returnable. |
|
1405 |
||
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1406 |
"/ find my raise context |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1407 |
con := Context findFirstSpecialHandle:false raise:true. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1408 |
[con notNil |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1409 |
and:[con receiver ~~ self]] whileTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1410 |
con := con findSpecialHandle:false raise:true. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1411 |
]. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1412 |
"/ now, have the doCallXXX context at-hand |
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1413 |
con := con sender. |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1414 |
"/ now, have the doRaise context at-hand |
4632 | 1415 |
con := con sender. |
1416 |
"/ 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
|
1417 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1418 |
handlerContext := suspendedContext := nil. |
4556 | 1419 |
con resume:value. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1420 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1421 |
"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
|
1422 |
"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
|
1423 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1424 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1425 |
reject |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1426 |
"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
|
1427 |
system will look for another handler" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1428 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1429 |
|con| |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1430 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1431 |
"/ find my raise context |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1432 |
con := Context findFirstSpecialHandle:false raise:true. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1433 |
[con notNil |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1434 |
and:[con receiver ~~ self]] whileTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1435 |
con := con findSpecialHandle:false raise:true. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1436 |
]. |
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1437 |
"/ 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
|
1438 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1439 |
rejected := true. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1440 |
con unwind:nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1441 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1442 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1443 |
Object errorSignal handle:[:ex | |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1444 |
'1' printCR. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1445 |
ex reject |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1446 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1447 |
Object errorSignal handle:[:ex | |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1448 |
'2' printCR. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1449 |
ex reject |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1450 |
] do:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1451 |
#() at:1 |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1452 |
] |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1453 |
] |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1454 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1455 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1456 |
|
4556 | 1457 |
resignalAs:anotherException |
1458 |
"resignal anotherException, as if it was raised in the first place" |
|
1459 |
||
1460 |
|con| |
|
1461 |
||
1462 |
con := suspendedContext. |
|
1463 |
||
1464 |
"/ "/ find my raise context |
|
1465 |
"/ con := Context findFirstSpecialHandle:false raise:true. |
|
1466 |
"/ [con notNil |
|
1467 |
"/ and:[con receiver ~~ self]] whileTrue:[ |
|
1468 |
"/ con := con findSpecialHandle:false raise:true. |
|
1469 |
"/ ]. |
|
1470 |
"/ "/ now, have the doCallXXX context at-hand |
|
1471 |
"/ con := con sender. |
|
1472 |
"/ "/ now, have the doRaise context at-hand |
|
1473 |
"/ con := con sender. |
|
1474 |
"/ "/ now, have the raise* context at-hand |
|
1475 |
"/ con := con sender. |
|
1476 |
"/ "/ now, have the raising context at-hand |
|
1477 |
||
1478 |
handlerContext := suspendedContext := nil. |
|
1479 |
con unwindThenDo:[anotherException mayProceed ifTrue:[ |
|
1480 |
anotherException raiseRequest |
|
1481 |
] ifFalse:[ |
|
1482 |
anotherException raise |
|
1483 |
] |
|
1484 |
] |
|
1485 |
||
1486 |
" |
|
1487 |
|rslt n| |
|
1488 |
||
1489 |
Object messageNotUnderstoodSignal handle:[:ex | |
|
1490 |
ex resignalAs:Number divisionByZeroSignal |
|
1491 |
] do:[ |
|
1492 |
rslt := 5 foo |
|
1493 |
]. |
|
1494 |
rslt |
|
1495 |
" |
|
1496 |
! |
|
1497 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1498 |
restart |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1499 |
"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
|
1500 |
in the handler" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1501 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1502 |
|con| |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1503 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1504 |
con := handlerContext. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1505 |
handlerContext := suspendedContext := nil. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1506 |
con unwindAndRestart |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1507 |
|
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 |
|rslt n| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1510 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1511 |
Object errorSignal handle:[:ex | |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1512 |
'fixing divisor ...' printCR. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1513 |
n := 1. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1514 |
ex restart. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1515 |
] do:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1516 |
rslt := 5 / n. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1517 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1518 |
rslt |
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 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1521 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1522 |
restartDo:aBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1523 |
"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
|
1524 |
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
|
1525 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1526 |
|con| |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1527 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1528 |
con := handlerContext. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1529 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1530 |
"/ handlerContext unwindThenDo:[ |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1531 |
"/ handlerContext receiver |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1532 |
"/ handle:(handlerContext argAt:1) |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1533 |
"/ do:aBlock |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1534 |
"/ ]. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1535 |
handlerContext := suspendedContext := nil. |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1536 |
con receiver handlerProtectedBlock:aBlock inContext:con. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1537 |
con unwindAndRestart |
4481
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 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1540 |
|sig rslt| |
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 |
sig := Signal new. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1543 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1544 |
sig handle:[:ex | |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1545 |
ex restartDo:[ rslt := 999 ] |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1546 |
] do:[ |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1547 |
rslt := 0. |
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1548 |
sig raise |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1549 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1550 |
Transcript showCR:rslt |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1551 |
" |
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 |
|sig rslt| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1555 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1556 |
Object errorSignal handle:[:ex | |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1557 |
ex restartDo:[ rslt := 999 ] |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1558 |
] do:[ |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1559 |
rslt := nil foo. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1560 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1561 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1562 |
Transcript showCR:rslt |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1563 |
" |
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 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1566 |
|sig rslt| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1567 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1568 |
Object errorSignal handle:[:ex | |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1569 |
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
|
1570 |
] do:[ |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1571 |
rslt := nil foo. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1572 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1573 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1574 |
Transcript showCR:rslt |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1575 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1576 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1577 |
"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
|
1578 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1579 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1580 |
resume |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1581 |
"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
|
1582 |
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
|
1583 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1584 |
self obsoleteMethodWarning:'use #proceed'. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1585 |
^ self proceedWith:nil |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1586 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1587 |
"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
|
1588 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1589 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1590 |
resumeWith:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1591 |
"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
|
1592 |
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
|
1593 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1594 |
self obsoleteMethodWarning:'use #proceedWith:'. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1595 |
^ self proceedWith:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1596 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1597 |
"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
|
1598 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1599 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1600 |
return |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1601 |
"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
|
1602 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1603 |
|con| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1604 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1605 |
con := handlerContext. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1606 |
handlerContext := suspendedContext := nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1607 |
con unwind:nil |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1608 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1609 |
"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
|
1610 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1611 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1612 |
returnDoing:aBlock |
4544
2a0e3853d320
#returnDoing works for any exception handler.
Stefan Vogel <sv@exept.de>
parents:
4538
diff
changeset
|
1613 |
"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
|
1614 |
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
|
1615 |
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
|
1616 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1617 |
|con| |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1618 |
|
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1619 |
con := handlerContext. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1620 |
handlerContext := suspendedContext := nil. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1621 |
con unwindThenDo:aBlock |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1622 |
! |
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 |
returnWith:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1625 |
"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
|
1626 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1627 |
|con| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1628 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1629 |
con := handlerContext. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1630 |
handlerContext := suspendedContext := nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1631 |
con unwind:value |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1632 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1633 |
"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
|
1634 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1635 |
|
5570 | 1636 |
!GenericException methodsFor:'printing & storing'! |
4562 | 1637 |
|
1638 |
description |
|
1639 |
"return the description string of the signal" |
|
1640 |
||
1641 |
errorString isNil ifTrue:[ |
|
1642 |
^ signal description |
|
1643 |
]. |
|
1644 |
(errorString startsWith:Character space) ifTrue:[ |
|
1645 |
^ signal description, errorString. |
|
1646 |
]. |
|
1647 |
(errorString endsWith:Character space) ifTrue:[ |
|
1648 |
^ errorString, signal description. |
|
1649 |
]. |
|
1650 |
||
1651 |
^ errorString |
|
1652 |
||
1653 |
" |
|
1654 |
(Error new messageText:'bla') description |
|
1655 |
(Error new messageText:' bla') description |
|
1656 |
(Error new messageText:'bla ') description |
|
1657 |
" |
|
1658 |
||
1659 |
"Modified: / 12.3.1998 / 15:13:28 / stefan" |
|
1660 |
! ! |
|
1661 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1662 |
!GenericException methodsFor:'private'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1663 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1664 |
doCallAction |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1665 |
"call the action proper |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1666 |
- 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
|
1667 |
( see implementation of #reject and #proceed)." |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1668 |
|
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1669 |
<context: #return> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1670 |
<exception: #raise> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1671 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
1672 |
"/ thisContext markForRaise. -- same as above pragma |
4527 | 1673 |
^ self defaultAction |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1674 |
! |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1675 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1676 |
doCallHandler:aHandlerBlock |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1677 |
"call the handler proper |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1678 |
- 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
|
1679 |
( 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
|
1680 |
|
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1681 |
<context: #return> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1682 |
<exception: #raise> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1683 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1684 |
|val| |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1685 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4488
diff
changeset
|
1686 |
"/ 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
|
1687 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1688 |
val := aHandlerBlock value:self. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1689 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1690 |
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
|
1691 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1692 |
self returnWith:val |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1693 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1694 |
"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
|
1695 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1696 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1697 |
doRaise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1698 |
"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
|
1699 |
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
|
1700 |
the raising signal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1701 |
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
|
1702 |
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
|
1703 |
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
|
1704 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1705 |
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
|
1706 |
#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
|
1707 |
|
4488
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1708 |
<context: #return> |
db914d752859
must mark returned contexts as returnable
Claus Gittinger <cg@exept.de>
parents:
4484
diff
changeset
|
1709 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1710 |
|theContext handler |
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1711 |
theSignal c ex1 sig1 activeHandlers |
4504 | 1712 |
"lastHandler" h r firstHandler searchForHandle| |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1713 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1714 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1715 |
"/ 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
|
1716 |
"/ instanceVariable to record the originator setting. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1717 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1718 |
originator isNil ifTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1719 |
originator := suspendedContext homeReceiver |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1720 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1721 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1722 |
theSignal := signal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1723 |
theSignal isSignal ifFalse:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1724 |
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
|
1725 |
]. |
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 |
"/ '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
|
1728 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1729 |
"/ 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
|
1730 |
"/ 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
|
1731 |
"/ 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
|
1732 |
"/ 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
|
1733 |
"/ same handler) |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1734 |
"/ the code below collects active handlers ... |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1735 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1736 |
"/ 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
|
1737 |
"/ 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
|
1738 |
"/ in most cases ... |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1739 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1740 |
firstHandler := nil. |
4504 | 1741 |
searchForHandle := true. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1742 |
|
4504 | 1743 |
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
|
1744 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1745 |
[c notNil] whileTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1746 |
(c isRaiseContext) ifTrue:[ |
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1747 |
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
|
1748 |
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
|
1749 |
h notNil ifTrue:[ |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1750 |
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
|
1751 |
(sig1 == theSignal "are we going to raise the same signal again" |
4521 | 1752 |
|
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1753 |
"/ 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
|
1754 |
"/ 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
|
1755 |
"/ 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
|
1756 |
"/ 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
|
1757 |
"/ again by an exception occuring inside its handler. |
4521 | 1758 |
|
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1759 |
"/ 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
|
1760 |
"/ 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
|
1761 |
"/ ...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
|
1762 |
"/ where the receiver is the handling signal. |
4521 | 1763 |
|
5197
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1764 |
"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
|
1765 |
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
|
1766 |
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
|
1767 |
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
|
1768 |
"...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
|
1769 |
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
|
1770 |
activeHandlers isNil ifTrue:[ |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1771 |
activeHandlers := OrderedCollection new |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1772 |
]. |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1773 |
|
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1774 |
activeHandlers add:h. |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1775 |
"/ lastHandler := h. |
14331ce13d51
Fix detection of active handlers (change for class based exceptions)
Stefan Vogel <sv@exept.de>
parents:
5061
diff
changeset
|
1776 |
c := h. |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1777 |
] |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1778 |
] |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1779 |
] ifFalse:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1780 |
"/ must be a handle context ... |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1781 |
firstHandler := c. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1782 |
searchForHandle := false. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1783 |
]. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1784 |
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
|
1785 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1786 |
|
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1787 |
h := nil. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1788 |
c := nil. |
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1789 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1790 |
"/ now, start searching for a handler, |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1791 |
"/ 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
|
1792 |
"/ 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
|
1793 |
"/ 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
|
1794 |
"/ 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
|
1795 |
"/ to the unhandled code below. |
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 |
"/ lastHandler notNil ifTrue:[ |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1798 |
"/ theContext := lastHandler. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1799 |
"/ theContext := lastHandler findNextHandleContext |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1800 |
"/ ] ifFalse:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1801 |
theContext := firstHandler. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1802 |
"/ ]. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1803 |
firstHandler := nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1804 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1805 |
[theContext notNil] whileTrue:[ |
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1806 |
"/ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1807 |
"/ ask the Signal instance/Exception class for the handler. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1808 |
"/ nil is returned, if the signal is not accepted |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1809 |
"/ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1810 |
r := theContext receiver. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1811 |
(r notNil and:[(handler := r handlerForSignal:signal |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1812 |
context:theContext |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1813 |
originator:originator) notNil] |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1814 |
) ifTrue:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1815 |
(activeHandlers notNil |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1816 |
and:[activeHandlers includesIdentical:theContext]) ifTrue:[ |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1817 |
"/ 'skip activeHandler: ' print. theContext displayString printCR. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1818 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1819 |
] ifFalse:[ |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1820 |
"call the handler" |
4521 | 1821 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1822 |
handlerContext := theContext. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1823 |
"/ remember the handling signal, sigSet, or exception |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1824 |
"/ for the #accepts: check above |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1825 |
handlingException := r handlingExceptionInContext:theContext. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1826 |
theContext := nil. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1827 |
self doCallHandler:handler. |
4521 | 1828 |
|
4548
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1829 |
"/ if the handler rejects, we arrive here |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1830 |
"/ continue search for another handler |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1831 |
theContext := handlerContext. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1832 |
handlerContext := nil. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1833 |
]. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1834 |
]. |
8349abc6b796
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4544
diff
changeset
|
1835 |
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
|
1836 |
]. |
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 |
"/ 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
|
1839 |
"/ (especially useful for contexts ...) |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1840 |
activeHandlers := handler := ex1 := firstHandler := nil. |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1841 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1842 |
" |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1843 |
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
|
1844 |
or every handler rejected. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1845 |
" |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1846 |
^ self doCallAction |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1847 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1848 |
"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
|
1849 |
"Modified: / 9.11.1997 / 14:48:44 / cg" |
4504 | 1850 |
"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
|
1851 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1852 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1853 |
!GenericException methodsFor:'raising'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1854 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1855 |
raise |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1856 |
"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
|
1857 |
|
4556 | 1858 |
<context: #return> |
1859 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1860 |
suspendedContext isNil ifTrue:[ |
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
1861 |
suspendedContext := thisContext sender |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1862 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1863 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1864 |
proceedable := false. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1865 |
^ self doRaise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1866 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1867 |
"Modified: / 12.5.1996 / 15:09:47 / cg" |
4507 | 1868 |
"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
|
1869 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1870 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1871 |
raiseRequest |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1872 |
"actually raise a proceedable exception." |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1873 |
|
4556 | 1874 |
<context: #return> |
1875 |
||
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1876 |
suspendedContext isNil ifTrue:[ |
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
1877 |
suspendedContext := thisContext sender |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1878 |
]. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1879 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1880 |
self mayProceed ifFalse:[ |
4538
25c5124b8c79
minidebugger entry protocol changed;
Claus Gittinger <cg@exept.de>
parents:
4533
diff
changeset
|
1881 |
"/ proceeding from wrongProceedabilitySignal grants the raiseRequest |
4556 | 1882 |
WrongProceedabilityError raiseRequestWith:signal |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1883 |
]. |
4484
9476c82921d0
eliminated proceedBlock and rejectBlock;
Claus Gittinger <cg@exept.de>
parents:
4483
diff
changeset
|
1884 |
|
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1885 |
proceedable := true. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1886 |
^ self doRaise |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1887 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1888 |
"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
|
1889 |
"Modified: / 4.8.1999 / 08:05:12 / stefan" |
5680 | 1890 |
! |
1891 |
||
1892 |
raiseSignal |
|
1893 |
"actually raise an exception (whatever the proceedability is)." |
|
1894 |
||
1895 |
self mayProceed ifFalse:[ |
|
1896 |
^ self raise |
|
1897 |
]. |
|
5697
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1898 |
^ self raiseRequest |
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1899 |
! ! |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1900 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1901 |
!GenericException methodsFor:'setup'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1902 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1903 |
signal:aSignal originator:origin |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1904 |
"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
|
1905 |
- 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
|
1906 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1907 |
signal := aSignal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1908 |
originator := origin. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1909 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1910 |
"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
|
1911 |
! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1912 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1913 |
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
|
1914 |
"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
|
1915 |
- 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
|
1916 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1917 |
signal := aSignal. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1918 |
parameter := aParameter. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1919 |
errorString := aString. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1920 |
suspendedContext := sContext. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1921 |
originator := origin. |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1922 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1923 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1924 |
!GenericException class methodsFor:'documentation'! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1925 |
|
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1926 |
version |
5697
ce78c7d9ddbd
raiseSignal / raiseSignal: / raiseSignal:with:
Claus Gittinger <cg@exept.de>
parents:
5684
diff
changeset
|
1927 |
^ '$Header: /cvs/stx/stx/libbasic/GenericException.st,v 1.41 2000-11-09 11:13:11 cg Exp $' |
4481
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1928 |
! ! |
f3f7e1af7489
added GenericException in-between, to allow for some exceptions
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
1929 |
GenericException initialize! |