On Sun, 26 May 2013, Chris Muller wrote:

> Why?

Because there's a better way: 
http://lists.squeakfoundation.org/pipermail/squeak-dev/2008-November/132554.html

IIRC Igor extended his implementation, and it's probably part of Pharo 
since 1.x.


Levente

>
> On Sun, May 26, 2013 at 1:11 PM, Levente Uzonyi <leves at elte.hu> wrote:
>> On Sun, 26 May 2013, commits at source.squeak.org wrote:
>>
>>> Chris Muller uploaded a new version of Kernel to project The Trunk:
>>> http://source.squeak.org/trunk/Kernel-cmm.760.mcz
>>>
>>> ==================== Summary ====================
>>>
>>> Name: Kernel-cmm.760
>>> Author: cmm
>>> Time: 26 May 2013, 11:25:19.426 am
>>> UUID: 523782ae-3096-40ec-8031-77432a691908
>>> Ancestors: Kernel-fbs.759
>>>
>>> - Move #isKindOf: to ProtoObject to allow the PointerFinder to work with
>>> Proxies.
>>
>>
>> Proxies shouldn't be implemented by subclassing ProtoObject.
>>
>>
>> Levente
>>
>>
>>>
>>> =============== Diff against Kernel-fbs.759 ===============
>>>
>>> Item was removed:
>>> - ----- Method: Object>>isKindOf: (in category 'class membership') -----
>>> - isKindOf: aClass
>>> -       "Answer whether the class, aClass, is a superclass or class of the
>>> receiver."
>>> -
>>> -       self class == aClass
>>> -               ifTrue: [^true]
>>> -               ifFalse: [^self class inheritsFrom: aClass]!
>>>
>>> Item was added:
>>> + ----- Method: ProtoObject>>isKindOf: (in category 'testing') -----
>>> + isKindOf: aClass
>>> +       "Answer whether the class, aClass, is a superclass or class of the
>>> receiver."
>>> +       ^ self class == aClass or: [ self class inheritsFrom: aClass ]!
>>>
>>>
>>>
>>
>
>