Re: Slot accessing issues in EIEIO

[Zhu Zihao]

On Wed, 06 May 2020 21:28:18 +0800,
Stefan Monnier wrote:
> 
> > Recently, I'm reading the source of
> > closql(https://github.com/emacscollective/closql), A Emacs sqlite database 
> > ORM
> > package. It use eieio object, and put a piece of advice on eieio-oref to
> > intercept the reading slot action.
> 
> Yuck!  Can you explain why they need an advice on `eieio-oref`?
> 
> 
>         Stefan

OK, a closql-object(This is a class defined in closql) is a proxy object to a
row in SQL database. So each time user tries to read a slot, closql must sync
values between database and Emacs first.

It's also possible to reinvent accessors for closql specific usage, but Jonas
doesn't do. I guess this way(hack on EIEIO) can reuse some facilities(like 
with-slots).