[Seaside] Weird behavior where writing to an instance variable overwrites another instance variable instead

Yar Hwee Boon hboon at motionobj.com
Fri Oct 15 06:40:53 CEST 2004

Hi all,

I'm reposting this here with an update, as it wasn't replied to in  
squeak-dev, and I thought other Seaside users might have seen this before:

I'm getting a very weird behavior. Using Seaside, I have a method as below:

ACTransactionEditor>>addValidationError: aString
ifNil: [validationErrors := OrderedCollection new].
^ validationErrors add: aString

ACTransactionEditor (a subclass of WAEditDialog, for those who use  
Seaside), inherits the instance variable
"decoration" from a superclass. I define a instance variable called  
validationErrors. In the 3rd line of
#addValidationError:, the assignment to validationErrors actually assigns  
to decoration instead, leaving
validationErrors unchanged. I went through the debugger a couple of times  
and can swear to it happening. It
finally work snormally after I put a self halt into #addValidationError:.  
After that, removing the self halt,
  etc, the code still works (ie. I can't reproduce it anymore).

Update: when I create another WAEditDialog subclass, this same problem  
happens again. Any one has experienced this? Thanks.


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