diff options
Diffstat (limited to 'lisp/emacs-lisp/cl-generic.el')
| -rw-r--r-- | lisp/emacs-lisp/cl-generic.el | 49 |
1 files changed, 14 insertions, 35 deletions
diff --git a/lisp/emacs-lisp/cl-generic.el b/lisp/emacs-lisp/cl-generic.el index c6996bfc15b..173173305b4 100644 --- a/lisp/emacs-lisp/cl-generic.el +++ b/lisp/emacs-lisp/cl-generic.el @@ -808,22 +808,26 @@ methods.") ;; able to preload cl-generic without also preloading the byte-compiler, ;; So we use `eval-when-compile' so as not keep it available longer than ;; strictly needed. -(defmacro cl--generic-prefill-dispatchers (arg-or-context specializer) +(defmacro cl--generic-prefill-dispatchers (arg-or-context &rest specializers) (unless (integerp arg-or-context) (setq arg-or-context `(&context . ,arg-or-context))) (unless (fboundp 'cl--generic-get-dispatcher) (require 'cl-generic)) (let ((fun (cl--generic-get-dispatcher - `(,arg-or-context ,@(cl-generic-generalizers specializer) - ,cl--generic-t-generalizer)))) + `(,arg-or-context + ,@(apply #'append + (mapcar #'cl-generic-generalizers specializers)) + ,cl--generic-t-generalizer)))) ;; Recompute dispatch at run-time, since the generalizers may be slightly ;; different (e.g. byte-compiled rather than interpreted). ;; FIXME: There is a risk that the run-time generalizer is not equivalent ;; to the compile-time one, in which case `fun' may not be correct ;; any more! - `(let ((dispatch `(,',arg-or-context - ,@(cl-generic-generalizers ',specializer) - ,cl--generic-t-generalizer))) + `(let ((dispatch + `(,',arg-or-context + ,@(apply #'append + (mapcar #'cl-generic-generalizers ',specializers)) + ,cl--generic-t-generalizer))) ;; (message "Prefilling for %S with \n%S" dispatch ',fun) (puthash dispatch ',fun cl--generic-dispatchers))))) @@ -1156,45 +1160,19 @@ These match if the argument is `eql' to VAL." ;;; Dispatch on "system types". -(defconst cl--generic-typeof-types - ;; Hand made from the source code of `type-of'. - '((integer number number-or-marker atom) - (symbol atom) (string array sequence atom) - (cons list sequence) - ;; Markers aren't `numberp', yet they are accepted wherever integers are - ;; accepted, pretty much. - (marker number-or-marker atom) - (overlay atom) (float number atom) (window-configuration atom) - (process atom) (window atom) (subr atom) (compiled-function function atom) - (buffer atom) (char-table array sequence atom) - (bool-vector array sequence atom) - (frame atom) (hash-table atom) (terminal atom) - (thread atom) (mutex atom) (condvar atom) - (font-spec atom) (font-entity atom) (font-object atom) - (vector array sequence atom) - ;; Plus, really hand made: - (null symbol list sequence atom)) - "Alist of supertypes. -Each element has the form (TYPE . SUPERTYPES) where TYPE is one of -the symbols returned by `type-of', and SUPERTYPES is the list of its -supertypes from the most specific to least specific.") - -(defconst cl--generic-all-builtin-types - (delete-dups (copy-sequence (apply #'append cl--generic-typeof-types)))) - (cl-generic-define-generalizer cl--generic-typeof-generalizer ;; FIXME: We could also change `type-of' to return `null' for nil. 10 (lambda (name &rest _) `(if ,name (type-of ,name) 'null)) (lambda (tag &rest _) - (and (symbolp tag) (assq tag cl--generic-typeof-types)))) + (and (symbolp tag) (assq tag cl--typeof-types)))) (cl-defmethod cl-generic-generalizers :extra "typeof" (type) "Support for dispatch on builtin types. -See the full list and their hierarchy in `cl--generic-typeof-types'." +See the full list and their hierarchy in `cl--typeof-types'." ;; FIXME: Add support for other types accepted by `cl-typep' such ;; as `character', `face', `function', ... (or - (and (memq type cl--generic-all-builtin-types) + (and (memq type cl--all-builtin-types) (progn ;; FIXME: While this wrinkle in the semantics can be occasionally ;; problematic, this warning is more often annoying than helpful. @@ -1205,6 +1183,7 @@ See the full list and their hierarchy in `cl--generic-typeof-types'." (cl-call-next-method))) (cl--generic-prefill-dispatchers 0 integer) +(cl--generic-prefill-dispatchers 0 cl--generic-generalizer integer) ;;; Dispatch on major mode. |