function-keywords

function-keywords Standard Generic Function

Syntax:

function-keywords method → keys, allow-other-keys-p

Method Signatures:

function-keywords (method standard-method)

Arguments and Values:

method—a method.

keys—a list.

allow-other-keys-p—a generalized boolean.

Description:

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.

Examples:

(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* 

Affected By:

defmethod

See Also:

defmethod

Expanded Reference: function-keywords

tip

TODO: Please contribute to this page by adding explanations and examples

(function-keywords )