Re: [Sbcl-devel] MOP and mmap'd manardb

[Christophe R. <cs...@ca...>]

Attila Lendvai <att...@gm...> writes:

>> If initialization is truly too slow for you, you might want to consider
>> effectively extending or specializing the ctor optimization (which
>> basically precomputes the association between keyword initargs and
>> slots) for your case, which I think is probably the conclusion you've
>> reached too.
>
>
> http://common-lisp.net/cgi-bin/darcsweb/darcsweb.cgi/darcsweb.cgi?r=cl-dwim-wui;a=headblob;f=/src/component/sbcl-ctor-kludge.lisp
>
> as a reference, we've done that, extended sbcl ctor optimizations.
>
> it's ugly, because the sbcl ctor code does not provide customization
> hooks as of now [...]

I doubt the sbcl ctor code will ever provide "customization hooks".
What it might do is be extended to work when there are non-standard
methods on (setf slot-value-using-class), which if I read your code
right is your issue.  It should be relatively straightforward to extend
SLOT-INIT-FORMS to call (setf slot-value-using-class) rather than 
(setf clos-slots-ref) when setting a location whose slot definition has
an applicable method on (setf slot-value-using-class) -- and similarly
adapting the boundp tests (though from your code that's not immediately
relevant for you).

Cheers,

Christophe