100 lines
3.8 KiB
EmacsLisp
100 lines
3.8 KiB
EmacsLisp
(eval-and-compile
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(require 'slime))
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(define-slime-contrib slime-xref-browser
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"Xref browsing with tree-widget"
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(:authors "Rui Patrocínio <rui.patrocinio@netvisao.pt>")
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(:license "GPL"))
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;;;; classes browser
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(defun slime-expand-class-node (widget)
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(or (widget-get widget :args)
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(let ((name (widget-get widget :tag)))
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(cl-loop for kid in (slime-eval `(swank:mop :subclasses ,name))
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collect `(tree-widget :tag ,kid
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:expander slime-expand-class-node
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:has-children t)))))
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(defun slime-browse-classes (name)
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"Read the name of a class and show its subclasses."
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(interactive (list (slime-read-symbol-name "Class Name: ")))
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(slime-call-with-browser-setup
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(slime-buffer-name :browser) (slime-current-package) "Class Browser"
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(lambda ()
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(widget-create 'tree-widget :tag name
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:expander 'slime-expand-class-node
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:has-echildren t))))
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(defvar slime-browser-map nil
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"Keymap for tree widget browsers")
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(require 'tree-widget)
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(unless slime-browser-map
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(setq slime-browser-map (make-sparse-keymap))
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(set-keymap-parent slime-browser-map widget-keymap)
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(define-key slime-browser-map "q" 'bury-buffer))
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(defun slime-call-with-browser-setup (buffer package title fn)
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(switch-to-buffer buffer)
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(kill-all-local-variables)
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(setq slime-buffer-package package)
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(let ((inhibit-read-only t)) (erase-buffer))
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(widget-insert title "\n\n")
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(save-excursion
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(funcall fn))
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(lisp-mode-variables t)
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(slime-mode t)
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(use-local-map slime-browser-map)
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(widget-setup))
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;;;; Xref browser
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(defun slime-fetch-browsable-xrefs (type name)
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"Return a list ((LABEL DSPEC)).
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LABEL is just a string for display purposes.
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DSPEC can be used to expand the node."
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(let ((xrefs '()))
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(cl-loop for (_file . specs) in (slime-eval `(swank:xref ,type ,name)) do
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(cl-loop for (dspec . _location) in specs do
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(let ((exp (ignore-errors (read (downcase dspec)))))
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(cond ((and (consp exp) (eq 'flet (car exp)))
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;; we can't expand FLET references so they're useless
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)
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((and (consp exp) (eq 'method (car exp)))
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;; this isn't quite right, but good enough for now
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(push (list dspec (string (cl-second exp))) xrefs))
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(t
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(push (list dspec dspec) xrefs))))))
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xrefs))
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(defun slime-expand-xrefs (widget)
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(or (widget-get widget :args)
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(let* ((type (widget-get widget :xref-type))
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(dspec (widget-get widget :xref-dspec))
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(xrefs (slime-fetch-browsable-xrefs type dspec)))
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(cl-loop for (label dspec) in xrefs
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collect `(tree-widget :tag ,label
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:xref-type ,type
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:xref-dspec ,dspec
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:expander slime-expand-xrefs
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:has-children t)))))
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(defun slime-browse-xrefs (name type)
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"Show the xref graph of a function in a tree widget."
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(interactive
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(list (slime-read-from-minibuffer "Name: "
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(slime-symbol-at-point))
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(read (completing-read "Type: " (slime-bogus-completion-alist
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'(":callers" ":callees" ":calls"))
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nil t ":"))))
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(slime-call-with-browser-setup
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(slime-buffer-name :xref) (slime-current-package) "Xref Browser"
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(lambda ()
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(widget-create 'tree-widget :tag name :xref-type type :xref-dspec name
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:expander 'slime-expand-xrefs :has-echildren t))))
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(provide 'slime-xref-browser)
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