/usr/share/emacs/site-lisp/geiser/geiser-xref.el is in geiser 0.1.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | ;; geiser-xref.el -- utilities for cross-referencing
;; Copyright (C) 2009, 2010 Jose Antonio Ortega Ruiz
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the Modified BSD License. You should
;; have received a copy of the license along with this program. If
;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
;; Start date: Thu Mar 05, 2009 23:03
(require' geiser-edit)
(require 'geiser-autodoc)
(require 'geiser-eval)
(require 'geiser-popup)
(require 'geiser-custom)
(require 'geiser-base)
(require 'button)
(require 'lisp-mode)
;;; Customization:
(defgroup geiser-xref nil
"Options for cross-referencing commands."
:group 'geiser)
(geiser-edit--define-custom-visit
geiser-xref-follow-link-method geiser-xref
"How to visit buffers when following xrefs.")
(geiser-custom--defface xref-link
'link geiser-xref "links in cross-reference buffers")
(geiser-custom--defface xref-header
'bold geiser-xref "headers in cross-reference buffers")
;;; Ref button:
(define-button-type 'geiser-xref--button
'action 'geiser-xref--button-action
'face 'geiser-font-lock-xref-link
'follow-link t)
(defun geiser-xref--button-action (button)
(let ((location (button-get button 'location))
(name (button-get button 'name)))
(when location
(geiser-edit--try-edit-location name
location
geiser-xref-follow-link-method))))
(defun geiser-xref--insert-button (xref)
(let* ((location (cdr (assoc "location" xref)))
(file (geiser-edit--location-file location))
(signature (cdr (assoc "signature" xref)))
(signature-txt (and signature
(geiser-autodoc--str* signature)))
(module (cdr (assoc "module" xref)))
(p (point)))
(when signature
(insert " - ")
(if (stringp file)
(insert-text-button signature-txt
:type 'geiser-xref--button
'location location
'name (car signature)
'help-echo (format "%s in %s"
(car signature) file))
(insert (format "%s" signature-txt)))
(fill-region p (point))
(save-excursion (goto-char p) (indent-sexp))
(newline))))
(defun geiser-xref--module< (xr1 xr2)
(let ((m1 (format "%s" (cdr (assoc "module" xr1))))
(m2 (format "%s" (cdr (assoc "module" xr2)))))
(cond ((equal m1 m2)
(string< (format "%s" (cdr (assoc "signature" xr1)))
(format "%s" (cdr (assoc "signature" xr2)))))
((null m1) (not m2))
((null m2))
(t (string< (format "%s" m1) (format "%s" m2))))))
(defun geiser-xref--display-xrefs (header xrefs)
(geiser-xref--with-buffer
(erase-buffer)
(geiser--insert-with-face header 'geiser-font-lock-xref-header)
(newline)
(let ((last-module))
(dolist (xref (sort xrefs 'geiser-xref--module<))
(let ((module (format "%s" (cdr (assoc "module" xref)))))
(when (not (equal module last-module))
(insert "\n In module ")
(geiser--insert-with-face (format "%s" module)
'geiser-font-lock-xref-header)
(newline 2)
(setq last-module module))
(geiser-xref--insert-button xref)))))
(geiser-xref--pop-to-buffer)
(goto-char (point-min)))
(defun geiser-xref--read-name (ask prompt)
(let ((name (or (and (not ask) (geiser--symbol-at-point))
(read-string prompt nil nil (geiser--symbol-at-point)))))
(and name (format "%s" name))))
(defun geiser-xref--fetch-xrefs (ask kind rkind proc)
(let* ((name (geiser-xref--read-name ask (format "%s: " (capitalize kind))))
(res (and name (geiser-eval--send/result
`(:eval (:ge ,proc (quote (:scm ,name))))))))
(message "Retrieving %ss list for '%s'..." rkind name)
(if (or (not res) (not (listp res)))
(message "No %ss found for '%s'" rkind name)
(message "")
(geiser-xref--display-xrefs (format "%ss for '%s'"
(capitalize rkind)
name)
res))))
;;; Buffer and mode:
(geiser-popup--define xref "*Geiser xref*" geiser-xref-mode)
(defvar geiser-xref-mode-map
(let ((map (make-sparse-keymap)))
(suppress-keymap map)
(set-keymap-parent map button-buffer-map)
map))
(defun geiser-xref-mode ()
"Major mode for displaying cross-references.
\\{geiser-xref-mode-map}"
(interactive)
(kill-all-local-variables)
(buffer-disable-undo)
(use-local-map geiser-xref-mode-map)
(set-syntax-table scheme-mode-syntax-table)
(setq mode-name "Geiser Xref")
(setq major-mode 'geiser-xref-mode)
(setq buffer-read-only t))
;;; Commands:
(defun geiser-xref-generic-methods (&optional arg)
"Display information about known methods of a given generic.
With prefix, ask for the name of the generic."
(interactive "P")
(geiser-xref--fetch-xrefs arg "generic" "method" 'generic-methods))
(defun geiser-xref-callers (&optional arg)
"Display list of callers for procedure at point.
With prefix, ask for the procedure."
(interactive "P")
(geiser-xref--fetch-xrefs arg "procedure" "caller" 'callers))
(defun geiser-xref-callees (&optional arg)
"Display list of callees for procedure at point.
With prefix, ask for the procedure."
(interactive "P")
(geiser-xref--fetch-xrefs arg "procedure" "callee" 'callees))
(provide 'geiser-xref)
;;; geiser-xref.el ends here
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