Ahh ok that!
The problem is that imagine that you would see superclasses of
ProtoObject class
then how would you relate let's say Behavior when you click back on
the instance button.
I think that the instance class button is somehow misleading. and may
be it would be better to have
Object class
Collection class
....
instead of
Object
Collection
and class button pressed
Stef
On Oct 7, 2009, at 10:32 PM, Petr Vácha wrote:
> I know Smalltalk hierarchy, I just wanted to point out, that Hierarchy
> Browser does not provide (maybe I am dumb, but I do not see any)
> obvious
> way to show the hierarchy to see that Array class inherits from
> Behavior.
>
> PV.
>
> ----- PŮVODNÍ ZPRÁVA -----
> Od: "Stéphane Ducasse" <[email protected]>
> Komu: "Petr Vácha" <[email protected]>
> Předmět: Re: Hierarchy browsers & implementers of
> Datum: 7.10.2009 - 21:22:42
>
>> I suggest you to read the chapter on the Smalltalk
>> model in the Squeak
>> or pharo by example book
>> the key is:
>>
>> when you look for a message you look in the CLASS of
>> the receiver
>> then its superclasses.
>>
>> So when you look for new sent to Array you should look
>> in the Array
>> class superclasses and you will see it contains
>> Behavior before ProtoObject
>>
>> Stef
>>
>> PS: you can sent to the mailing-list just register
>> to it. You do not
>> need to have a google account.
>>
>> On Oct 7, 2009, at 1:00 PM, Petr Vácha wrote:
>>
>>> Hi again,
>>> when try to find out that Array>>new: bug I found
>>> one thing that I
>>>> think
>>> may be very confusing - somehow mangled information
>>> from hierarchy
>>>> browsers
>>> (see figure).
>>>
>>> Array>>new: calls primitive and uses self>>basicNew:
>>> call as fallback.
>>>> Array does not implement basicNew: so I tried to
>>> find implementors of
>>>> it. Behavior has this implementation. However, when
>>> you show hierarchy
>>>> of Array, it ends in ProtoObject with no Behavior
>>> involved. I think
>>>> this to be is somewhat confusing for beginners especially
>>> when they
>>>> are trying to get into method lookup chain.
>>>
>>> Petr Vacha
>>>
>>>
>>> <pharo-browsers.jpg>
>>
>
>
>
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