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Re: Elisp printer


From: Tom Tromey
Subject: Re: Elisp printer
Date: Tue, 07 Mar 2017 21:09:50 -0700
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)

>>>>> "Stefan" == Stefan Monnier <address@hidden> writes:

Stefan> PS: I wish we could have funcallable defstructs, so we could
Stefan>     efficiently dispatch on the "type" of functions when those functions
Stefan>     are used as objects.

I was wondering about this a while ago and thinking that maybe it could
be done without C changes by repurposing the extra arguments to
make-byte-code.  The idea here would be to let cl-defsubst take a new
:type argument other than 'vector or 'list, meaning "use
make-byte-code"; and set the :initial-offset to skip over the stuff
necessary for the bytecode.

It's kind of hacky though.  I think it's probably better to just add
funcallable instances directly, and real types of some kind at the same
time.

Tom



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