On 2006-maj-13, at 23:56, Ken Tilton wrote:
As the subject suggests, methinks the defcallback macro knows about
IGNORE but not IGNORABLE. I use the latter a lot because of debug
statements that come and go.
Hmm, we're putting the declarations in the wrong place.
(defcallback foo :int ((a :int) (b :int))
(declare (ignorable b))
a)
Macroexpands into something like:
(FOREIGN-FUNCTIONS:DEFUN-FOREIGN-CALLABLE
CFFI-CALLBACKS::|CFFI::FOO| ((A :INT) (B :INT))
(DECLARE (:CONVENTION :C))
(DECLARE (IGNORABLE B))
(LET ((A (VALUES A)))
(LET ((B (VALUES B)))
;; Allegro will warn here because this new B is unused.
;;
;; Perhaps the declarations should go here?
;; (except for IGNORE declarations and maybe others?)
(BLOCK FOO A))))
--
Luís Oliveira
http://student.dei.uc.pt/~lmoliv/
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