I entered a bug entry
http://code.google.com/p/pharo/issues/detail?id=5566
Stef
On Mar 28, 2012, at 7:18 AM, Stéphane Ducasse wrote:
> Yes this is a bug probably due to the looked up of variable (bindingOf:)
> We should fix it for 1.4
>
> Thanks.
>
> Stef
>
> On Mar 28, 2012, at 4:27 AM, Martin Sandiford wrote:
>
>> On Wed, Mar 28, 2012 at 8:12 AM, Stéphane Ducasse
>> <[email protected]> wrote:
>>> thanks for the report. To me it looks like we changed some on classVar
>>> lookup and it is not modular anymore…
>>
>> I don't really know enough about the system to judge whether the
>> compiler is being over-conservative in this case.
>>
>> A minimal case to reproduce the same error is:
>>
>> Smalltalk at: #Foo put: #Foo.
>>
>> Then define a class:
>>
>> Object subclass: #FooTest
>> instanceVariableNames: ''
>> classVariableNames: 'Foo' "This is the trigger"
>> poolDictionaries: ''
>> category: 'ClassVar-Testing'
>>
>> On save, a debug window with "DuplicatedVariableError: Foo is defined
>> elsewhere" is shown.
>>
>> I've tried this with a selection of images in the 1.4 set from
>> 14400-14414 and with 1.3 13315 with the same results. It seems that
>> Class>>declare: calls Class>>bindingOf: to check if a symbol is
>> already bound, and this always returns non-nil for globals.
>>
>> Martin
>>
>
>
