diff options
| -rw-r--r-- | elisp/geiser-impl.el | 39 |
1 files changed, 32 insertions, 7 deletions
diff --git a/elisp/geiser-impl.el b/elisp/geiser-impl.el index 8c55ab4..5c09d51 100644 --- a/elisp/geiser-impl.el +++ b/elisp/geiser-impl.el @@ -82,24 +82,49 @@ determine its scheme flavour." (let ((fun (geiser-impl--method method impl))) (when (functionp fun) (apply fun args)))) -(defun geiser-impl--method-doc (method doc) - (push (cons method doc) geiser-impl--method-docs)) +(defun geiser-impl--method-doc (method doc user) + (let* ((user (if user (format " Used via `%s'." user) "")) + (extra-doc (format "%s%s" doc user))) + (add-to-list 'geiser-impl--method-docs (cons method extra-doc)) + (put method 'function-documentation doc))) + +(defun geiser-implementation-help () + "Shows a list of implementation methods, with descriptions." + (interactive) + (with-current-buffer (get-buffer-create "* Geiser implementation help*") + (setq buffer-read-only nil) + (delete-region (point-min) (point-max)) + (insert "Methods used to define an implementation:\n\n") + (let ((ms (sort (copy-list geiser-impl--method-docs) + (lambda (a b) (string< (symbol-name (car a)) + (symbol-name (car b))))))) + (dolist (m ms) + (geiser--insert-with-face (format "%s: " (car m)) 'bold) + (insert (cdr m)) + (fill-paragraph) + (insert "\n\n"))) + (goto-char (point-min)) + (unless (eq major-mode 'help-mode) (help-mode)) + (help-make-xrefs) + (setq buffer-read-only t) + (pop-to-buffer (current-buffer)))) (defun geiser-impl--register-local-method (var-name method fallback doc) (add-to-list 'geiser-impl--local-methods (list var-name method fallback)) - (geiser-impl--method-doc method doc)) + (geiser-impl--method-doc method doc var-name) + (put var-name 'function-documentation doc)) (defun geiser-impl--register-local-variable (var-name method fallback doc) (add-to-list 'geiser-impl--local-variables (list var-name method fallback)) - (geiser-impl--method-doc method doc)) + (geiser-impl--method-doc method doc var-name) + (put var-name 'variable-documentation doc)) (defmacro geiser-impl--define-caller (fun-name method arglist doc) - (let ((m (make-symbol "method-candidate")) - (impl (make-symbol "implementation-name"))) + (let ((impl (make-symbol "implementation-name"))) `(progn (defun ,fun-name ,(cons impl arglist) ,doc (geiser-impl--call-method ',method ,impl ,@arglist)) - (geiser-impl--method-doc ',method ,doc)))) + (geiser-impl--method-doc ',method ,doc ',fun-name)))) (put 'geiser-impl--define-caller 'lisp-indent-function 3) (defun geiser-impl--register (file impl methods) |