[Cuis-dev] ifPresent/ifAbsent methods in SequenceableCollection (and other minimal improvements)

[Juan Vuletich]

Hi Facu,

This is cool stuff! It is now at GitHub.

Thanks!

On 2026-04-04 2:41 PM, Facundo Javier Gelatti via Cuis-dev wrote:
> In some work I'm doing, I needed to use the #at:ifPresent:ifAbsent: on 
> a SequenceableCollection, which I (wrongly) assumed was implemented 
> (in a similar way in which it is available for Dictionaries). A 
> SequenceableCollection only understands #at:ifAbsent:.
>
> I'm not sure if we want to add them, but I attach some changes to add 
> #at:ifPresent: and #at:ifPresent:ifAbsent: to SequenceableCollection. 
> The changes are based on the current methods of SequenceableCollection 
> and Dictionary.
>
> I also corrected the method comment on 
> Dictionary>>#at:ifPresent:ifAbsent:, and made minor style changes 
> to SequenceableCollection>>#at:ifAbsent:.
>
> Note: I didn't know if it was better to implement both #at:ifPresent: 
> and #at:ifAbsent: in terms of #at:ifPresent:ifAbsent:. I left them 
> separate because I saw that in Dictionary they are not implemented 
> that way.
>
> Cheers!
> Facu
>
-- 
Juan Vuletich
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