Re: Edit a cl-struct by copy, or, slot-value for cl-structs

[Stefan Monnier <monnier@iro.umontreal.ca>]

>>> (mapcar #'cl--slot-descriptor-name
>>>        (cl--struct-class-slots (get (type-of obj) 'cl--class)))
>>> 
>>> But I can’t get any further as I can’t find any generic getter and
>>> setter for cl-struct’s. Something like slot-value. So close!

FWIW, I just pushed to `master` a patch which makes `slot-value` work to
read slots from structs.  It doesn't help you, tho, because it still
doesn't let you set them, and in your case it really shouldn't since
they are defined as read-only.

>> and then use (my-foo-with foo :c 42) and (my-foo-with-a foo 153 "42”)
> That’s cool. But my lazy fingers like better to write a single function and
> use it for everything ;-)

But that tends to come at a performance cost.


        Stefan