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Working with elisp as Smalltalk's Ide (Squeak, pharo) [closed]

Lately, I started to learning or improve my knowledge in OOP. Starting to learning cuis-smalltalk, (I was not sure to make this journey or continue with CLOS or EIEIO). I found the Squeak IDE, quite ...
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change EIEO class slot default

I am trying to modify a slot in a class (created with EIEIO library). I can access the slot with (oref-default 'helm-source-ffiles filtered-candidate-transformer) and that returns (helm-ff-sort-...
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Equivalent of EIEIO's make-instance for cl-lib structs?

What equivalents exist for EIEIO's make-instance in cl-lib? (make-instance 'my/class :slot-a "value" :slot-b "value") I would like to create an instance of an arbitrary struct identified by a ...
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How do you use the eieio-persistent class to serialize a set of objects?

I am trying to use the eieio-persistent class to make persistent objects. My goal is to store many objects in a file. I am not sure how to achieve this though. If I use this code, I do get a ...