Chris,
> a := ByteArray with: 65 with: 66.
> a collect: [:e | e asCharacter ].
As far as I'm aware you shouldn't expect this to work. #collect: is defined
as answering the same type of collection as the receiver (in this case a
ByteArray) which, in turn, is not capable of holding characters.
Okay, the error message is poor (for example Squeak gives "Error: Improper
store into indexable object" if you try this) but the GP fault is safely
trapped by Dolphin so no damage is done.
Note that the following works fine:
a := ByteArray with: 65 with: 66.
a asArray collect: [:e | e asCharacter ].
Best regards,
Andy Bower
Dolphin Support
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"Chris Double" <
[hidden email]> wrote in message
news:
[hidden email]...
> A small bug (I think) in Dolphin 4, patch level 1, Windows 98.
>
> Evaluate the following in a workspace:
>
> a := ByteArray with: 65 with: 66.
> a collect: [:e | e asCharacter ].
>
> The last line gives the following walkback:
>
> ProcessorScheduler>>gpFault:
> [] in ProcessorScheduler>>vmi:list:no:with:
> BlockClosure>>ifCurtailed:
> ProcessorScheduler>>vmi:list:no:with:
> ByteArray(Object)>>errorAt:put:
> ByteArray(ArrayedCollection)>>at:put:
> [] in ByteArray(SequenceableCollection)>>collect:
> ByteArray(SequenceableCollection)>>from:to:keysAndValuesDo:
> ByteArray(SequenceableCollection)>>keysAndValuesDo:
> ByteArray(SequenceableCollection)>>collect:
> [...etc...]
>
> I know the example is an error. The ByteArray can't hold characters
> and #collect will create a new ByteArray with the block attempting to
> put characters into it. A GP fault error seems a bit odd for this one
> though rather than some type error?
>
> I did this by accident and it took me a couple of looks to work out
> why the error.
>
> Cheers,
> Chris.
Locked
