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function-keywords method ⇒ keys, allow-other-keys-p
function-keywords (method standard-method)
method—a method.
keys—a list.
allow-other-keys-p—a generalized boolean.
Returns the keyword parameter specifiers for a method.
Two values are returned: a list of the explicitly named keywords and a generalized boolean that states whether &allow-other-keys had been specified in the method definition.
(defmethod gf1 ((a integer) &optional (b 2)
&key (c 3) ((:dee d) 4) e ((eff f)))
(list a b c d e f))
⇒ #<STANDARD-METHOD GF1 (INTEGER) 36324653>
(find-method #'gf1 '() (list (find-class 'integer)))
⇒ #<STANDARD-METHOD GF1 (INTEGER) 36324653>
(function-keywords *)
⇒ (:C :DEE :E EFF), false
(defmethod gf2 ((a integer))
(list a b c d e f))
⇒ #<STANDARD-METHOD GF2 (INTEGER) 42701775>
(function-keywords (find-method #'gf1 '() (list (find-class 'integer))))
⇒ (), false
(defmethod gf3 ((a integer) &key b c d &allow-other-keys)
(list a b c d e f))
(function-keywords *)
⇒ (:B :C :D), true
defmethod