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Index
Objects Dictionary Objects Dictionary ensure-generic-function
Standard Generic Function

function-keywords

Syntax

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

Method Signatures

function-keywords (method standard-method)

Arguments and Values

methoda method.
keysa list.
allow-other-keys-pa 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

Backlinks

Objects Dictionary, Symbols in the COMMON-LISP Package