specialization-store
The specialization store system provides a new kind of function, called a store function, whose behavior depends on the types of objects passed to the function.
$ area51 add specialization-storeコピー使い方
;; area51 add で .asd が自動更新されます。
;; コード内でパッケージを使用:
(in-package :my-project)
(specialization-store:some-function ...)