On Thu, Feb 21, 2013 at 9:26 AM, Staffan Tylen <staffan.ty...@gmail.com>wrote:
>
>> By 'brings down the whole ooRexx environment, do you mean the interpreter
>> terminates, or do you mean the process crashes? I'm going to assume you
>> mean the interpreter terminates.
>>
>
> Crashes is probably the best description. Windows puts up an error dialog
> window saying that it's searching for a solution etc...
>
Okay, that's different than I was talking about. When the process crashes,
you are not going to get any syntax error messages.
>
>
>> As I said though, the syntax condition should be printed out. Since it
>> isn't, I would say that without the terminating code, you would just see
>> your program hang with no message, and have to kill rexx.exe through the
>> task manager.
>>
>>
> The Windows error dialog terminates the process when OK is pressed.
>
>
>> As always, if you can produce an example that shows the problem I can
>> most likely figure out what the cause is. I suspect that may be difficult
>> in this case. But, if you can I'll gladly look at it.
>>
>>
> Thanks for the offer. I managed to find the cause to the problem which was
> a abc~def call where abc was .NIL, but without a message. The code
> structure that is in place is similar to my last PSP example, and was
> caused by a super class method not getting called early enough to set some
> global attributes.
>
An attribute is a method. You can not invoke any method on a dialog object
before the super class is initialized.
As the problem is solved I don't feel that digging deeper into this is
> meaningful, there are more important things in life :)
>
Well I should fix it so it doesn't crash. This is actually where the base
class initialization syntax error comes from. When I first started
converting ooDialog to the new ooRexx APIs, it never occurred to me that
any one would invoke a method on an object before the super class was
initialized. So, I didn't put in enough checks for that in the code. I've
since fixed that, I thought.
You shouldn't have gotten a crash, you should have gotten:
C:\work.ooRexx>resizingErrs.rex
25 *-* say self~propSheet
9 *-* page4 = .page4~new(,,,"Page4")
2 *-* a~prepare
Error 98 running C:\work.ooRexx\resizingErrs.rex line 9: Execution error
Error 98.900: The PropertySheetPage base class has not been initialized
correctly
Which attribute(s) of what class was this?
--
Mark Miesfeld
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