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

defmethod