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authormattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
committermattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
commitbd18a38c2898548a3664a9ddab9f79c84f2caf4a (patch)
tree95b9933376770381bd8859782ae763be81c2d72b /elpa/company-20220326.48/company-semantic.el
parentb07628dddf418d4f47b858e6c35fd3520fbaeed2 (diff)
parentef160dea332af4b4fe5e2717b962936c67e5fe9e (diff)
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-;;; company-semantic.el --- company-mode completion backend using Semantic
-
-;; Copyright (C) 2009-2011, 2013-2018 Free Software Foundation, Inc.
-
-;; Author: Nikolaj Schumacher
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
-
-
-;;; Commentary:
-;;
-
-;;; Code:
-
-(require 'company)
-(require 'company-template)
-(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")
-(declare-function semantic-format-tag-prototype "semantic/format")
-
-(defgroup company-semantic nil
- "Completion backend using Semantic."
- :group 'company)
-
-(defcustom company-semantic-metadata-function 'company-semantic-summary-and-doc
- "The function turning a semantic tag into doc information."
- :type 'function)
-
-(defcustom company-semantic-begin-after-member-access t
- "When non-nil, automatic completion will start whenever the current
-symbol is preceded by \".\", \"->\" or \"::\", ignoring
-`company-minimum-prefix-length'.
-
-If `company-begin-commands' is a list, it should include `c-electric-lt-gt'
-and `c-electric-colon', for automatic completion right after \">\" and
-\":\"."
- :type 'boolean)
-
-(defcustom company-semantic-insert-arguments t
- "When non-nil, insert function arguments as a template after completion."
- :type 'boolean
- :package-version '(company . "0.9.0"))
-
-(defvar company-semantic-modes '(c-mode c++-mode jde-mode java-mode))
-
-(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 (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 (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 summary
- (when doc
- (if (< (+ (length doc) (length summary) 4) (window-width))
- " -- "
- "\n"))
- doc)))
-
-(defun company-semantic-doc-buffer (tag)
- (let ((doc (company-semantic-documentation-for-tag tag)))
- (when doc
- (company-doc-buffer
- (concat (funcall semantic-idle-summary-function tag nil t)
- "\n"
- doc)))))
-
-(defsubst company-semantic-completions (prefix)
- (ignore-errors
- (let ((completion-ignore-case nil)
- (context (semantic-analyze-current-context)))
- (setq company-semantic--current-tags
- (semantic-analyze-possible-completions context 'no-unique))
- (all-completions prefix company-semantic--current-tags))))
-
-(defun company-semantic-completions-raw (prefix)
- (setq company-semantic--current-tags nil)
- (dolist (tag (semantic-analyze-find-tags-by-prefix prefix))
- (unless (eq (semantic-tag-class tag) 'include)
- (push tag company-semantic--current-tags)))
- (delete "" (mapcar 'semantic-tag-name company-semantic--current-tags)))
-
-(defun company-semantic-annotation (argument tags)
- (let* ((tag (assq argument tags))
- (kind (when tag (elt tag 1))))
- (cl-case kind
- (function (let* ((prototype (semantic-format-tag-prototype tag nil nil))
- (par-pos (string-match "(" prototype)))
- (when par-pos (substring prototype par-pos)))))))
-
-(defun company-semantic--prefix ()
- (if company-semantic-begin-after-member-access
- (company-grab-symbol-cons "\\.\\|->\\|::" 2)
- (company-grab-symbol)))
-
-;;;###autoload
-(defun company-semantic (command &optional arg &rest ignored)
- "`company-mode' completion backend using CEDET Semantic."
- (interactive (list 'interactive))
- (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--prefix) 'stop)))
- (candidates (if (and (equal arg "")
- (not (looking-back "->\\|\\.\\|::" (- (point) 2))))
- (company-semantic-completions-raw arg)
- (company-semantic-completions arg)))
- (meta (funcall company-semantic-metadata-function
- (assoc arg company-semantic--current-tags)))
- (annotation (company-semantic-annotation 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 ""))
- (duplicates t)
- (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)))))
- (post-completion (let ((anno (company-semantic-annotation
- arg company-semantic--current-tags)))
- (when (and company-semantic-insert-arguments anno)
- (insert anno)
- (company-template-c-like-templatify (concat arg anno)))
- ))))
-
-(provide 'company-semantic)
-;;; company-semantic.el ends here