X-Git-Url: https://code.delx.au/gnu-emacs-elpa/blobdiff_plain/a73cbc5c6f456d875d18e232998a2d0767747dc0..170111814c0bd342c50ab84d3e3bf699c1bd1f1d:/packages/company/company-semantic.el

diff --git a/packages/company/company-semantic.el b/packages/company/company-semantic.el
index da0a5d3d8..6c020a30f 100644
--- a/packages/company/company-semantic.el
+++ b/packages/company/company-semantic.el
@@ -1,6 +1,6 @@
-;;; company-semantic.el --- a company-mode back-end using CEDET Semantic
+;;; company-semantic.el --- company-mode completion back-end using Semantic
 
-;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 2009-2011, 2013  Free Software Foundation, Inc.
 
 ;; Author: Nikolaj Schumacher
 
@@ -19,36 +19,57 @@
 ;; You should have received a copy of the GNU General Public License
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
+
+;;; Commentary:
+;;
+
 ;;; Code:
 
 (require 'company)
-(or (require 'semantic-analyze nil t)
-    (require 'semantic/analyze))
-(eval-when-compile (require 'cl))
+(require 'cl-lib)
+
+(defvar semantic-idle-summary-function)
+(declare-function semantic-documentation-for-tag "semantic/doc" )
+(declare-function semantic-analyze-current-context "semantic/analyze")
+(declare-function semantic-analyze-possible-completions "semantic/complete")
+(declare-function semantic-analyze-find-tags-by-prefix "semantic/analyze/fcn")
+(declare-function semantic-tag-class "semantic/tag")
+(declare-function semantic-tag-name "semantic/tag")
+(declare-function semantic-tag-start "semantic/tag")
+(declare-function semantic-tag-buffer "semantic/tag")
+(declare-function semantic-active-p "semantic")
+
+(defgroup company-semantic nil
+  "Completion back-end using Semantic."
+  :group 'company)
 
 (defcustom company-semantic-metadata-function 'company-semantic-summary-and-doc
-  "*The function turning a semantic tag into doc information."
-  :group 'company
+  "The function turning a semantic tag into doc information."
   :type 'function)
 
 (defvar company-semantic-modes '(c-mode c++-mode jde-mode java-mode))
 
-(defvar company-semantic--current-tags nil
-  "Tags for the current context")
+(defvar-local company-semantic--current-tags nil
+  "Tags for the current context.")
+
+(defun company-semantic-documentation-for-tag (tag)
+  (when (semantic-tag-buffer tag)
+    ;; When TAG's buffer is unknown, the function below raises an error.
+    (semantic-documentation-for-tag tag)))
 
 (defun company-semantic-doc-or-summary (tag)
-  (or (semantic-documentation-for-tag tag)
+  (or (company-semantic-documentation-for-tag tag)
       (and (require 'semantic-idle nil t)
            (require 'semantic/idle nil t)
            (funcall semantic-idle-summary-function tag nil t))))
 
 (defun company-semantic-summary-and-doc (tag)
-  (let ((doc (semantic-documentation-for-tag tag))
+  (let ((doc (company-semantic-documentation-for-tag tag))
         (summary (funcall semantic-idle-summary-function tag nil t)))
     (and (stringp doc)
          (string-match "\n*\\(.*\\)$" doc)
          (setq doc (match-string 1 doc)))
-    (concat (funcall semantic-idle-summary-function tag nil t)
+    (concat summary
             (when doc
                   (if (< (+ (length doc) (length summary) 4) (window-width))
                       " -- "
@@ -56,13 +77,12 @@
             doc)))
 
 (defun company-semantic-doc-buffer (tag)
-  (let ((doc (semantic-documentation-for-tag tag)))
+  (let ((doc (company-semantic-documentation-for-tag tag)))
     (when doc
-      (with-current-buffer (company-doc-buffer)
-        (insert (funcall semantic-idle-summary-function tag nil t)
-                "\n"
-                doc)
-        (current-buffer)))))
+      (company-doc-buffer
+       (concat (funcall semantic-idle-summary-function tag nil t)
+               "\n"
+               doc)))))
 
 (defsubst company-semantic-completions (prefix)
   (ignore-errors
@@ -98,28 +118,29 @@ Symbols are chained by \".\" or \"->\"."
 
 ;;;###autoload
 (defun company-semantic (command &optional arg &rest ignored)
-  "A `company-mode' completion back-end using CEDET Semantic."
+  "`company-mode' completion back-end using CEDET Semantic."
   (interactive (list 'interactive))
-  (case command
-    ('interactive (company-begin-backend 'company-semantic))
-    ('prefix (and (memq major-mode company-semantic-modes)
-                  (semantic-active-p)
-                  (not (company-in-string-or-comment))
-                  (or (company-semantic--grab) 'stop)))
-    ('candidates (if (and (equal arg "")
-                          (not (looking-back "->\\|\\.")))
-                     (company-semantic-completions-raw arg)
-                   (company-semantic-completions arg)))
-    ('meta (funcall company-semantic-metadata-function
-                    (assoc arg company-semantic--current-tags)))
-    ('doc-buffer (company-semantic-doc-buffer
-                  (assoc arg company-semantic--current-tags)))
-    ;; because "" is an empty context and doesn't return local variables
-    ('no-cache (equal arg ""))
-    ('location (let ((tag (assoc arg company-semantic--current-tags)))
-                 (when (buffer-live-p (semantic-tag-buffer tag))
-                   (cons (semantic-tag-buffer tag)
-                         (semantic-tag-start tag)))))))
+  (cl-case command
+    (interactive (company-begin-backend 'company-semantic))
+    (prefix (and (featurep 'semantic)
+                 (semantic-active-p)
+                 (memq major-mode company-semantic-modes)
+                 (not (company-in-string-or-comment))
+                 (or (company-semantic--grab) 'stop)))
+    (candidates (if (and (equal arg "")
+                         (not (looking-back "->\\|\\.")))
+                    (company-semantic-completions-raw arg)
+                  (company-semantic-completions arg)))
+    (meta (funcall company-semantic-metadata-function
+                   (assoc arg company-semantic--current-tags)))
+    (doc-buffer (company-semantic-doc-buffer
+                 (assoc arg company-semantic--current-tags)))
+    ;; Because "" is an empty context and doesn't return local variables.
+    (no-cache (equal arg ""))
+    (location (let ((tag (assoc arg company-semantic--current-tags)))
+                (when (buffer-live-p (semantic-tag-buffer tag))
+                  (cons (semantic-tag-buffer tag)
+                        (semantic-tag-start tag)))))))
 
 (provide 'company-semantic)
 ;;; company-semantic.el ends here