[Cuis-dev] Other potentially missing abstract methods

[Facundo Javier Gelatti]

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
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