[Cuis-dev] Other potentially missing abstract methods

Fri Apr 10 14:05:30 PDT 2026

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
>
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