[slime-devel] hook around eval-for-emacs
avodonosov at yandex.ru
Tue Jan 15 16:34:07 UTC 2013
Could you add a hook around eval-for-emacs, as show in the attached patch?
It would allow maintain custom context for all the slime requests.
My use case is that I have this tool: https://github.com/avodonosov/local-package-aliases.
It allows me to say that in my package $a:plist-alist means alexandria:plist-alist
It is portable and in my opinion convenient, but as the aliases are handled by reader macro,
slime does not understand tokens like $a:plist-alist, because it can't find package $a.
In result slime completion, function arguments hints, go-to-definition doesn't work.
The solution I found is that during evaluation of any slime request,
if the package designated by swank::*buffer-package* has alias mapping,
I temporary add all these aliases as nicknames to the corresponding packages.
That's why I need a hook around evaluation
of every expression received by swank::eval-for-emacs.
With the swank patch applied, I add this hook:
(defun swank-eval-for-emacs-hook (next-fn)
(local-package-aliases::call-with-nicknames (local-package-aliases::alias-table-for swank::*buffer-package*)
(push 'swank-eval-for-emacs-hook swank::*around-eval-for-emacs-hook*)
and slime completion, go-to-definition, function parameters hints all start working.
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