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[emacs.git] / lisp / cedet / srecode / table.el
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1 ;;; srecode/table.el --- Tables of Semantic Recoders
3 ;; Copyright (C) 2007-2013 Free Software Foundation, Inc.
5 ;; Author: Eric M. Ludlam <eric@siege-engine.com>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software: you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation, either version 3 of the License, or
12 ;; (at your option) any later version.
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
22 ;;; Commentary:
24 ;; Semantic Recoder tables manage lists of templates and the major
25 ;; modes they are associated with.
28 (require 'eieio)
29 (require 'eieio-base)
30 (require 'mode-local)
31 (require 'srecode)
33 (declare-function srecode-load-tables-for-mode "srecode/find")
34 (declare-function srecode-template-table-in-project-p "srecode/find")
36 ;;; Code:
38 ;;; TEMPLATE TABLE
40 (defclass srecode-template-table ()
41 (;;
42 ;; Raw file tracking
44 (file :initarg :file
45 :type string
46 :documentation
47 "The name of the file this table was built from.")
48 (filesize :initarg :filesize
49 :type number
50 :documentation
51 "The size of the file when it was parsed.")
52 (filedate :initarg :filedate
53 :type cons
54 :documentation
55 "Date from the inode of the file when it was last edited.
56 Format is from the `file-attributes' function.")
57 (major-mode :initarg :major-mode
58 :documentation
59 "The major mode this table of templates is associated with.")
61 ;; Template file sorting data
63 (application :initarg :application
64 :type symbol
65 :documentation
66 "Tracks the name of the application these templates belong to.
67 If this is nil, then this template table belongs to a set of generic
68 templates that can be used with no additional dictionary values.
69 When it is non-nil, it is assumed the template macros need specialized
70 Emacs Lisp code to fill in the dictionary.")
71 (framework :initarg :framework
72 :type symbol
73 :documentation
74 "Tracks the name of the framework these templates belong to.
75 If nil, then this template table belongs to any framework, or can be
76 considered generic for all files of this language.
77 A framework might be a specific library or build environment for which
78 special templates are desired. OpenGL might be a framework that
79 exists for multiple languages.")
80 (priority :initarg :priority
81 :type number
82 :documentation
83 "For file of this Major Mode, what is the priority of this file.
84 When there are multiple template files with similar names, templates with
85 the highest priority are scanned last, allowing them to override values in
86 previous template files.")
87 (project :initarg :project
88 :type (or null string)
89 :documentation
90 "Scope some project files to a specific project.
91 The value is a directory which forms the root of a particular project,
92 or a subset of a particular project.")
94 ;; Parsed Data from the template file
96 (templates :initarg :templates
97 :type list
98 :documentation
99 "The list of templates compiled into this table.")
100 (namehash :initarg :namehash
101 :documentation
102 "Hash table containing the names of all the templates.")
103 (contexthash :initarg :contexthash
104 :documentation
106 (variables :initarg :variables
107 :documentation
108 "AList of variables.
109 These variables are used to initialize dictionaries.")
111 "Semantic recoder template table.
112 A Table contains all templates from a single .srt file.
113 Tracks various lookup hash tables.")
115 ;;; MODE TABLE
117 (defvar srecode-mode-table-list nil
118 "List of all the SRecode mode table classes that have been built.")
120 (defclass srecode-mode-table (eieio-instance-tracker)
121 ((tracking-symbol :initform 'srecode-mode-table-list)
122 (major-mode :initarg :major-mode
123 :documentation
124 "Table of template tables for this major-mode.")
125 (modetables :initarg :modetables
126 :documentation
127 "All that tables unique to this major mode.")
128 (tables :initarg :tables
129 :documentation
130 "All the tables that can be used for this major mode.")
132 "Track template tables for a particular major mode.
133 Tracks all the template-tables for a specific major mode.")
135 (defun srecode-get-mode-table (mode)
136 "Get the SRecoder mode table for the major mode MODE.
137 This will find the mode table specific to MODE, and then
138 calculate all inherited templates from parent modes."
139 (let ((table nil)
140 (tmptable nil))
141 (while mode
142 (setq tmptable (eieio-instance-tracker-find
143 mode 'major-mode 'srecode-mode-table-list)
144 mode (get-mode-local-parent mode))
145 (when tmptable
146 (if (not table)
147 (progn
148 ;; If this is the first, update tables to have
149 ;; all the mode specific tables in it.
150 (setq table tmptable)
151 (oset table tables (oref table modetables)))
152 ;; If there already is a table, then reset the tables
153 ;; slot to include all the tables belonging to this new child node.
154 (oset table tables (append (oref table modetables)
155 (oref tmptable modetables)))))
157 table))
159 (defun srecode-make-mode-table (mode)
160 "Get the SRecoder mode table for the major mode MODE."
161 (let ((old (eieio-instance-tracker-find
162 mode 'major-mode 'srecode-mode-table-list)))
163 (if old
165 (let* ((ms (if (stringp mode) mode (symbol-name mode)))
166 (new (srecode-mode-table ms
167 :major-mode mode
168 :modetables nil
169 :tables nil)))
170 ;; Save this new mode table in that mode's variable.
171 (eval `(setq-mode-local ,mode srecode-table ,new))
173 new))))
175 (defmethod srecode-mode-table-find ((mt srecode-mode-table) file)
176 "Look in the mode table MT for a template table from FILE.
177 Return nil if there was none."
178 (object-assoc file 'file (oref mt modetables)))
180 (defun srecode-mode-table-new (mode file &rest init)
181 "Create a new template table for MODE in FILE.
182 INIT are the initialization parameters for the new template table."
183 (let* ((mt (srecode-make-mode-table mode))
184 (old (srecode-mode-table-find mt file))
185 (attr (file-attributes file))
186 (new (apply 'srecode-template-table
187 (file-name-nondirectory file)
188 :file file
189 :filesize (nth 7 attr)
190 :filedate (nth 5 attr)
191 :major-mode mode
192 init
194 ;; Whack the old table.
195 (when old (object-remove-from-list mt 'modetables old))
196 ;; Add the new table
197 (object-add-to-list mt 'modetables new)
198 ;; Sort the list in reverse order. When other routines
199 ;; go front-to-back, the highest priority items are put
200 ;; into the search table first, allowing lower priority items
201 ;; to be the items found in the search table.
202 (object-sort-list mt 'modetables (lambda (a b)
203 (> (oref a :priority)
204 (oref b :priority))))
205 ;; Return it.
206 new))
208 (defun object-sort-list (object slot predicate)
209 "Sort the items in OBJECT's SLOT.
210 Use PREDICATE is the same as for the `sort' function."
211 (when (slot-boundp object slot)
212 (when (listp (eieio-oref object slot))
213 (eieio-oset object slot (sort (eieio-oref object slot) predicate)))))
215 ;;; DEBUG
217 ;; Dump out information about the current srecoder compiled templates.
219 (defun srecode-dump-templates (mode)
220 "Dump a list of the current templates for MODE."
221 (interactive "sMode: ")
222 (require 'srecode/find)
223 (let ((modesym (cond ((string= mode "")
224 major-mode)
225 ((not (string-match "-mode" mode))
226 (intern-soft (concat mode "-mode")))
228 (intern-soft mode)))))
229 (srecode-load-tables-for-mode modesym)
230 (let ((tmp (srecode-get-mode-table modesym))
232 (if (not tmp)
233 (error "No table found for mode %S" modesym))
234 (with-output-to-temp-buffer "*SRECODE DUMP*"
235 (srecode-dump tmp))
238 (defmethod srecode-dump ((tab srecode-mode-table))
239 "Dump the contents of the SRecode mode table TAB."
240 (princ "MODE TABLE FOR ")
241 (princ (oref tab :major-mode))
242 (princ "\n--------------------------------------------\n\nNumber of tables: ")
243 (let ((subtab (oref tab :tables)))
244 (princ (length subtab))
245 (princ "\n\n")
246 (while subtab
247 (srecode-dump (car subtab))
248 (setq subtab (cdr subtab)))
251 (defmethod srecode-dump ((tab srecode-template-table))
252 "Dump the contents of the SRecode template table TAB."
253 (princ "Template Table for ")
254 (princ (eieio-object-name-string tab))
255 (princ "\nPriority: ")
256 (prin1 (oref tab :priority))
257 (when (oref tab :application)
258 (princ "\nApplication: ")
259 (princ (oref tab :application)))
260 (when (oref tab :framework)
261 (princ "\nFramework: ")
262 (princ (oref tab :framework)))
263 (when (oref tab :project)
264 (require 'srecode/find) ; For srecode-template-table-in-project-p
265 (princ "\nProject Directory: ")
266 (princ (oref tab :project))
267 (when (not (srecode-template-table-in-project-p tab))
268 (princ "\n ** Not Usable in this file. **")))
269 (princ "\n\nVariables:\n")
270 (let ((vars (oref tab variables)))
271 (while vars
272 (princ (car (car vars)))
273 (princ "\t")
274 (if (< (length (car (car vars))) 9)
275 (princ "\t"))
276 (prin1 (cdr (car vars)))
277 (princ "\n")
278 (setq vars (cdr vars))))
279 (princ "\n\nTemplates:\n")
280 (let ((temp (oref tab templates)))
281 (while temp
282 (srecode-dump (car temp))
283 (setq temp (cdr temp))))
287 (provide 'srecode/table)
289 ;;; srecode/table.el ends here