[Cuis-dev] finding methods by example

[Mark Volkmann]

I see that methodsFor: is a method in ClassDescription, not in MethodFinder.
You want methodFor:.
It's an unfortunate name similarity, but I just chose the same method name
that the Squeak implementation uses.

The result I get for #(1 2) is the Integer method nextPrime.

On Mon, Jan 27, 2025 at 1:16 PM Boris Shingarov via Cuis-dev <
cuis-dev at lists.cuis.st> wrote:

> This is very intriguing, and I am suspected may be related to an issue
> I've been chasing for a while.
>
> So I loaded the latest commit (e7b89a6) of MethodFinder into today's
> fresh Cuis, and stepped through the code in the Debugger, but how do
> I reproduce your surprising result?  There is no #methodsByExample:.
> IIUC we are just looking for methods that match on *all* members of
> the given collection?  So with just one element, this would be
> equivalent to
>
> MethodFinder methodsFor: #(1 2).
>
> Where does the "double" Block enter this picture?  I don't think there
> is a method #double in Cuis, is there?
>
> On Sun, Jan 05, 2025 at 05:26:20PM -0600, Mark Volkmann via Cuis-dev wrote:
> > This revealed something that surprised me. I expected this to tell me
> that
> > an answer is the collect: method.
> >
> > double := [:x | x * 2].
> > Finder methodsByExample: { #(1 2 3). double. #(2 4 6) }.
> >
> > But I didn't know it would tell me that these methods also return the
> same
> > result:
> >
> > ifNotEmpty:
> > ifNotNil:
> > replace:
> > stonProcessSubObjects:
> >
> > On Sun, Jan 5, 2025 at 2:50 PM Mark Volkmann <r.mark.volkmann at gmail.com>
> > wrote:
> >
> > > I understand that the Squeak development environment provides a way to
> > > find methods by example. As a fun exercise I wanted to see if I could
> > > implement that in Cuis, minus the GUI. I created a Finder class with a
> > > single class method methodsByExample that does this. It's amazing how
> > > fast it is!
> > >
> > > For example, evaluating the following in a Workspace:
> > >
> > > Finder methodsByExample: #(#(1 2 3 4) 2.5)
> > >
> > > prints the following in the Transcript:
> > >
> > > The following methods on #(1 2 3 4) with no arguments return 2.5:
> > > - average
> > > - mean
> > >
> > > The hardest part was discovering all the methods that have side effects
> > > which should not be attempted. Perhaps I haven't found all of them yet.
> > >
> > > My code is in a package at
> > > https://github.com/mvolkmann/Cuis-Smalltalk-FindByExample. There are
> more
> > > examples in the README. I welcome feedback on ways this can be
> improved.
> > >
> > > --
> > > R. Mark Volkmann
> > > Object Computing, Inc.
> > >
> >
> >
> > --
> > R. Mark Volkmann
> > Object Computing, Inc.
>
> > --
> > Cuis-dev mailing list
> > Cuis-dev at lists.cuis.st
> > https://lists.cuis.st/mailman/listinfo/cuis-dev
>
> --
> Cuis-dev mailing list
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>


-- 
R. Mark Volkmann
Object Computing, Inc.
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