[Cuis-dev] Other potentially missing abstract methods

Fri Apr 10 15:02:19 PDT 2026

yeah, that is not difficult to do. I'll see if I have some time to do it
and share the results.

On Fri, Apr 10, 2026 at 6:05 PM Facundo Javier Gelatti <
javiergelatti at gmail.com> wrote:

> This is awesome!
>
> Something that could be useful is to see all the places in the base image
> where the LiveTyping typechecker fails because of this, to check if it
> makes sense to improve some of them.
>
>
> El vie, 10 de abr de 2026, 16:39, Hernán Wilkinson <
> hernan.wilkinson at 10pines.com> escribió:
>
>> It will help when sending a message that it is not implemented, as in the
>> case of #buildMorphicWindow, or #rotation: sent in Morph>>#rotationDegrees:
>> (see examples below) The type checker shows those errors.
>> It will not help when the message is sent in subclasses but not
>> implemented in the superclass.
>> [image: image.png]
>> [image: image.png]
>>
>>
>> On Thu, Apr 9, 2026 at 10:36 PM Facundo Javier Gelatti <
>> javiergelatti at gmail.com> wrote:
>>
>>> Interesting! I'm not sure if I understand, though. How is this solved
>>> with LiveTyping?
>>>
>>> El jue, 9 de abr de 2026, 22:22, Hernán Wilkinson <
>>> hernan.wilkinson at 10pines.com> escribió:
>>>
>>>> just a small comment, with LiveTyping this is easily solved  😉
>>>>
>>>> On Wed, Apr 8, 2026 at 3:43 PM Juan Vuletich via Cuis-dev <
>>>> cuis-dev at lists.cuis.st> wrote:
>>>>
>>>>> I've just pushed some additional calls to #subclassResponsibility.
>>>>>
>>>>> Thanks!
>>>>> On 2026-04-07 4:13 PM, Facundo Javier Gelatti via Cuis-dev wrote:
>>>>>
>>>>> Hi Juan!
>>>>>
>>>>> Awesome! Thanks for the changes and for your review !
>>>>>
>>>>> PS: Also, you're right to point out that I missed to check that the
>>>>> message should be sent to self in my scripts; I did know it was necessary,
>>>>> but for some reason I forgot to actually put that in the code, my bad!
>>>>>
>>>>> El mar, 7 abr 2026 a las 15:50, Juan Vuletich (<juan at jvuletich.org>)
>>>>> escribió:
>>>>>
>>>>>> Hi Facundo,
>>>>>>
>>>>>> This is very good!
>>>>>>
>>>>>> After running these, I pushed seven change sets. Some do add the
>>>>>> #subclassResponsibility call. Others refactor the code a bit.
>>>>>>
>>>>>> After these updates, your scripts still find many candidates. For
>>>>>> instance, in Case 2, it still finds Morph>>#rotation: . But this one is ok,
>>>>>> as the call on #rotation: is not to self! Same happens for
>>>>>> LookupKey>>#value:. LookupKeys don't even have a value at all! In Case 3,
>>>>>> not every dialog will include #cancel and #ok, etc.
>>>>>>
>>>>>> There are still other candidates where adding the abstract method
>>>>>> will make sense. A case by case review is needed.
>>>>>>
>>>>>> Cheers,
>>>>>> On 2026-04-03 1:05 PM, Facundo Javier Gelatti via Cuis-dev wrote:
>>>>>>
>>>>>> Inspired by the email I sent about adding an abstract method to
>>>>>> SystemWindow, I built some scripts to try to identify other abstract
>>>>>> methods that are missing.
>>>>>>
>>>>>> So, I attach three scripts that find classes and the selectors of
>>>>>> their potentially missing abstract methods. This is the logic for each one
>>>>>> of them:
>>>>>>
>>>>>> Case 1: pretty sure we should create abstract methods for these
>>>>>> Analyzes classes we know are abstract (i.e. which have abstract
>>>>>> methods, have no instances and have at least one subclass), selects the
>>>>>> methods that are implemented by *all* subclasses, which *are not* in
>>>>>> the abstract superclass, but that *are sent* from the superclass to
>>>>>> self.
>>>>>>
>>>>>> Case 2: also pretty sure, but in classes that don't have abstract
>>>>>> methods yet
>>>>>> Similar to Case 1, but the classes that are analyzed don't have any
>>>>>> abstract method. Because the messages are sent to self from the superclass,
>>>>>> I strongly suspect that these should also be implemented as abstract
>>>>>> methods.
>>>>>>
>>>>>> Case 3: not sure, but worth checking
>>>>>> Analyzes classes we know are abstract (similar to Case 1, but more
>>>>>> constrained: the classes should have at least *2* subclasses), selects the
>>>>>> methods that are implemented by *all* subclasses, which are not in
>>>>>> the abstract superclass, and that are *not* sent from the superclass
>>>>>> to self (to avoid repeating what was found in Case 1).
>>>>>> In this case we don't have the evidence of a message being sent to
>>>>>> self from the abstract class, but having all subclasses (which are at least
>>>>>> 2) implement the same message from an abstract superclass is some form of
>>>>>> evidence. For example, I'm pretty sure we should have an abstract method
>>>>>> for Boolean>>#orNot:.
>>>>>>
>>>>>> Being able to decide what to do with these findings requires domain
>>>>>> knowledge, so I'm not saying we should 100% add all of these as abstract
>>>>>> methods. Probably there are better design decisions depending on
>>>>>> the particular cases.
>>>>>>
>>>>>> I hope you find this helpful!
>>>>>>
>>>>>> Cheers,
>>>>>> Facu
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Juan Vuletichwww.cuis.stgithub.com/jvuletichresearchgate.net/profile/Juan-Vuletichindependent.academia.edu/JuanVuletichpatents.justia.com/inventor/juan-manuel-vuletich
>>>>>>
>>>>>>
>>>>> --
>>>>> Juan Vuletichwww.cuis.stgithub.com/jvuletichresearchgate.net/profile/Juan-Vuletichindependent.academia.edu/JuanVuletichpatents.justia.com/inventor/juan-manuel-vuletich
>>>>>
>>>>> --
>>>>> Cuis-dev mailing list
>>>>> Cuis-dev at lists.cuis.st
>>>>> https://lists.cuis.st/mailman/listinfo/cuis-dev
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> *Hernán WilkinsonAgile Software Development, Teaching & Coaching*
>>>> *Phone: +54-011*-4893-2057
>>>> *Twitter: @HernanWilkinson*
>>>> *site: http://www.10Pines.com <http://www.10pines.com/>*
>>>> Address: Alem 896, Floor 6, Buenos Aires, Argentina
>>>>
>>>
>>
>> --
>>
>> *Hernán WilkinsonAgile Software Development, Teaching & Coaching*
>> *Phone: +54-011*-4893-2057
>> *Twitter: @HernanWilkinson*
>> *site: http://www.10Pines.com <http://www.10pines.com/>*
>> Address: Alem 896, Floor 6, Buenos Aires, Argentina
>>
>

-- 

*Hernán WilkinsonAgile Software Development, Teaching & Coaching*
*Phone: +54-011*-4893-2057
*Twitter: @HernanWilkinson*
*site: http://www.10Pines.com <http://www.10pines.com/>*
Address: Alem 896, Floor 6, Buenos Aires, Argentina
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