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[emacs.git] / lisp / cedet / semantic.el
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1 ;;; semantic.el --- Semantic buffer evaluator.
3 ;; Copyright (C) 1999-2013 Free Software Foundation, Inc.
5 ;; Author: Eric M. Ludlam <zappo@gnu.org>
6 ;; Keywords: syntax tools
7 ;; Version: 2.2
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
24 ;;; Commentary:
26 ;; API for providing the semantic content of a buffer.
28 ;; The Semantic API provides an interface to a series of different parser
29 ;; implementations. Each parser outputs a parse tree in a similar format
30 ;; designed to handle typical functional and object oriented languages.
32 ;; To enable Semantic, turn on `semantic-mode', a global minor mode
33 ;; (M-x semantic-mode RET, or "Source Code Parsers" from the Tools
34 ;; menu). To enable it at startup, put (semantic-mode 1) in your init
35 ;; file.
37 (require 'cedet)
38 (require 'semantic/tag)
39 (require 'semantic/lex)
41 (defvar semantic-version "2.2"
42 "Current version of Semantic.")
44 (declare-function inversion-test "inversion")
45 (declare-function semanticdb-load-ebrowse-caches "semantic/db-ebrowse")
47 (defun semantic-require-version (major minor &optional beta)
48 "Non-nil if this version of Semantic does not satisfy a specific version.
49 Arguments can be:
51 (MAJOR MINOR &optional BETA)
53 Values MAJOR and MINOR must be integers. BETA can be an integer, or
54 excluded if a released version is required.
56 It is assumed that if the current version is newer than that specified,
57 everything passes. Exceptions occur when known incompatibilities are
58 introduced."
59 (require 'inversion)
60 (inversion-test 'semantic
61 (concat major "." minor
62 (when beta (concat "beta" beta)))))
64 (defgroup semantic nil
65 "Parser Generator and parser framework."
66 :group 'tools)
68 (defgroup semantic-faces nil
69 "Faces used for Semantic enabled tools."
70 :group 'semantic)
72 (require 'semantic/fw)
74 ;;; Code:
77 ;;; Variables and Configuration
79 (defvar semantic--parse-table nil
80 "Variable that defines how to parse top level items in a buffer.
81 This variable is for internal use only, and its content depends on the
82 external parser used.")
83 (make-variable-buffer-local 'semantic--parse-table)
84 (semantic-varalias-obsolete 'semantic-toplevel-bovine-table
85 'semantic--parse-table "23.2")
87 (defvar semantic-symbol->name-assoc-list
88 '((type . "Types")
89 (variable . "Variables")
90 (function . "Functions")
91 (include . "Dependencies")
92 (package . "Provides"))
93 "Association between symbols returned, and a string.
94 The string is used to represent a group of objects of the given type.
95 It is sometimes useful for a language to use a different string
96 in place of the default, even though that language will still
97 return a symbol. For example, Java return's includes, but the
98 string can be replaced with `Imports'.")
99 (make-variable-buffer-local 'semantic-symbol->name-assoc-list)
101 (defvar semantic-symbol->name-assoc-list-for-type-parts nil
102 "Like `semantic-symbol->name-assoc-list' for type parts.
103 Some tags that have children (see `semantic-tag-children-compatibility')
104 will want to define the names of classes of tags differently than at
105 the top level. For example, in C++, a Function may be called a
106 Method. In addition, there may be new types of tags that exist only
107 in classes, such as protection labels.")
108 (make-variable-buffer-local 'semantic-symbol->name-assoc-list-for-type-parts)
110 (defvar semantic-case-fold nil
111 "Value for `case-fold-search' when parsing.")
112 (make-variable-buffer-local 'semantic-case-fold)
114 (defvar semantic-expand-nonterminal nil
115 "Function to call for each nonterminal production.
116 Return a list of non-terminals derived from the first argument, or nil
117 if it does not need to be expanded.
118 Languages with compound definitions should use this function to expand
119 from one compound symbol into several. For example, in C the definition
120 int a, b;
121 is easily parsed into one tag. This function should take this
122 compound tag and turn it into two tags, one for A, and the other for B.")
123 (make-variable-buffer-local 'semantic-expand-nonterminal)
125 (defvar semantic--buffer-cache nil
126 "A cache of the fully parsed buffer.
127 If no significant changes have been made (based on the state) then
128 this is returned instead of re-parsing the buffer.
130 DO NOT USE THIS VARIABLE IN PROGRAMS.
132 If you need a tag list, use `semantic-fetch-tags'. If you need the
133 cached values for some reason, chances are you can add a hook to
134 `semantic-after-toplevel-cache-change-hook'.")
135 (make-variable-buffer-local 'semantic--buffer-cache)
136 (semantic-varalias-obsolete 'semantic-toplevel-bovine-cache
137 'semantic--buffer-cache "23.2")
139 (defvar semantic-unmatched-syntax-cache nil
140 "A cached copy of unmatched syntax tokens.")
141 (make-variable-buffer-local 'semantic-unmatched-syntax-cache)
143 (defvar semantic-unmatched-syntax-cache-check nil
144 "Non-nil if the unmatched syntax cache is out of date.
145 This is tracked with `semantic-change-function'.")
146 (make-variable-buffer-local 'semantic-unmatched-syntax-cache-check)
148 (defvar semantic-edits-are-safe nil
149 "When non-nil, modifications do not require a reparse.
150 This prevents tags from being marked dirty, and it prevents top level
151 edits from causing a cache check.
152 Use this when writing programs that could cause a full reparse, but
153 will not change the tag structure, such as adding or updating
154 `top-level' comments.")
156 (defvar semantic-unmatched-syntax-hook nil
157 "Hooks run when Semantic detects syntax not matched in a grammar.
158 Each individual piece of syntax (such as a symbol or punctuation
159 character) is called with this hook when it doesn't match in the
160 grammar, and multiple unmatched syntax elements are not grouped
161 together. Each hook is called with one argument, which is a list
162 of syntax tokens created by the semantic lexer. Use the functions
163 `semantic-lex-token-start', `semantic-lex-token-end' and
164 `semantic-lex-token-text' to get information about these tokens.
165 The current buffer is the buffer these tokens are derived from.")
167 (defvar semantic--before-fetch-tags-hook nil
168 "Hooks run before a buffer is parsed for tags.
169 It is called before any request for tags is made via the function
170 `semantic-fetch-tags' by an application.
171 If any hook returns a nil value, the cached value is returned
172 immediately, even if it is empty.")
173 (semantic-varalias-obsolete 'semantic-before-toplevel-bovination-hook
174 'semantic--before-fetch-tags-hook "23.2")
176 (defvar semantic-after-toplevel-bovinate-hook nil
177 "Hooks run after a toplevel parse.
178 It is not run if the toplevel parse command is called, and buffer does
179 not need to be fully reparsed.
180 For language specific hooks, make sure you define this as a local hook.
182 This hook should not be used any more.
183 Use `semantic-after-toplevel-cache-change-hook' instead.")
184 (make-obsolete-variable 'semantic-after-toplevel-bovinate-hook nil "23.2")
186 (defvar semantic-after-toplevel-cache-change-hook nil
187 "Hooks run after the buffer tag list has changed.
188 This list will change when a buffer is reparsed, or when the tag list
189 in a buffer is cleared. It is *NOT* called if the current tag list is
190 partially reparsed.
192 Hook functions must take one argument, which is the new list of tags
193 associated with this buffer.
195 For language specific hooks, make sure you define this as a local hook.")
197 (defvar semantic-before-toplevel-cache-flush-hook nil
198 "Hooks run before the toplevel tag cache is flushed.
199 For language specific hooks, make sure you define this as a local
200 hook. This hook is called before a corresponding
201 `semantic-after-toplevel-cache-change-hook' which is also called
202 during a flush when the cache is given a new value of nil.")
204 (defcustom semantic-dump-parse nil
205 "When non-nil, dump parsing information."
206 :group 'semantic
207 :type 'boolean)
209 (defvar semantic-parser-name "LL"
210 "Optional name of the parser used to parse input stream.")
211 (make-variable-buffer-local 'semantic-parser-name)
213 (defvar semantic--completion-cache nil
214 "Internal variable used by `semantic-complete-symbol'.")
215 (make-variable-buffer-local 'semantic--completion-cache)
217 ;;; Parse tree state management API
219 (defvar semantic-parse-tree-state 'needs-rebuild
220 "State of the current parse tree.")
221 (make-variable-buffer-local 'semantic-parse-tree-state)
223 (defmacro semantic-parse-tree-unparseable ()
224 "Indicate that the current buffer is unparseable.
225 It is also true that the parse tree will need either updating or
226 a rebuild. This state will be changed when the user edits the buffer."
227 `(setq semantic-parse-tree-state 'unparseable))
229 (defmacro semantic-parse-tree-unparseable-p ()
230 "Return non-nil if the current buffer has been marked unparseable."
231 `(eq semantic-parse-tree-state 'unparseable))
233 (defmacro semantic-parse-tree-set-needs-update ()
234 "Indicate that the current parse tree needs to be updated.
235 The parse tree can be updated by `semantic-parse-changes'."
236 `(setq semantic-parse-tree-state 'needs-update))
238 (defmacro semantic-parse-tree-needs-update-p ()
239 "Return non-nil if the current parse tree needs to be updated."
240 `(eq semantic-parse-tree-state 'needs-update))
242 (defmacro semantic-parse-tree-set-needs-rebuild ()
243 "Indicate that the current parse tree needs to be rebuilt.
244 The parse tree must be rebuilt by `semantic-parse-region'."
245 `(setq semantic-parse-tree-state 'needs-rebuild))
247 (defmacro semantic-parse-tree-needs-rebuild-p ()
248 "Return non-nil if the current parse tree needs to be rebuilt."
249 `(eq semantic-parse-tree-state 'needs-rebuild))
251 (defmacro semantic-parse-tree-set-up-to-date ()
252 "Indicate that the current parse tree is up to date."
253 `(setq semantic-parse-tree-state nil))
255 (defmacro semantic-parse-tree-up-to-date-p ()
256 "Return non-nil if the current parse tree is up to date."
257 `(null semantic-parse-tree-state))
259 ;;; Interfacing with the system
261 (defcustom semantic-inhibit-functions nil
262 "List of functions to call with no arguments before Semantic is setup.
263 If any of these functions returns non-nil, the current buffer is not
264 setup to use Semantic."
265 :group 'semantic
266 :type 'hook)
268 (defcustom semantic-new-buffer-setup-functions
269 '((c-mode . semantic-default-c-setup)
270 (c++-mode . semantic-default-c-setup)
271 (html-mode . semantic-default-html-setup)
272 (java-mode . wisent-java-default-setup)
273 (js-mode . wisent-javascript-setup-parser)
274 (python-mode . wisent-python-default-setup)
275 (scheme-mode . semantic-default-scheme-setup)
276 (srecode-template-mode . srecode-template-setup-parser)
277 (texinfo-mode . semantic-default-texi-setup)
278 (makefile-automake-mode . semantic-default-make-setup)
279 (makefile-gmake-mode . semantic-default-make-setup)
280 (makefile-makepp-mode . semantic-default-make-setup)
281 (makefile-bsdmake-mode . semantic-default-make-setup)
282 (makefile-imake-mode . semantic-default-make-setup)
283 (makefile-mode . semantic-default-make-setup))
284 "Alist of functions to call to set up Semantic parsing in the buffer.
285 Each element has the form (MODE . FN), where MODE is a value of
286 `major-mode' for the buffer and FN is the corresponding function
287 to call, with no arguments, to set up the parser.
289 These functions are called by `semantic-new-buffer-fcn', before
290 `semantic-inhibit-functions'."
291 :group 'semantic
292 :type '(alist :key-type symbol :value-type function))
294 (defvar semantic-init-hook nil
295 "Hook run when a buffer is initialized with a parsing table.")
297 (defvar semantic-init-mode-hook nil
298 "Hook run when a buffer of a particular mode is initialized.")
299 (make-variable-buffer-local 'semantic-init-mode-hook)
301 (defvar semantic-init-db-hook nil
302 "Hook run when a buffer is initialized with a parsing table for DBs.
303 This hook is for database functions which intend to swap in a tag table.
304 This guarantees that the DB will go before other modes that require
305 a parse of the buffer.")
307 (semantic-varalias-obsolete 'semantic-init-hooks
308 'semantic-init-hook "23.2")
309 (semantic-varalias-obsolete 'semantic-init-mode-hooks
310 'semantic-init-mode-hook "23.2")
311 (semantic-varalias-obsolete 'semantic-init-db-hooks
312 'semantic-init-db-hook "23.2")
314 (defsubst semantic-error-if-unparsed ()
315 "Raise an error if current buffer was not parsed by Semantic."
316 (unless semantic-new-buffer-fcn-was-run
317 (error "Buffer was not parsed by Semantic.")))
319 (defsubst semantic--umatched-syntax-needs-refresh-p ()
320 "Return non-nil if the unmatched syntax cache needs a refresh.
321 That is, if it is dirty or if the current parse tree isn't up to date."
322 (or semantic-unmatched-syntax-cache-check
323 (not (semantic-parse-tree-up-to-date-p))))
325 (defun semantic-new-buffer-fcn ()
326 "Setup the current buffer to use Semantic.
327 If the major mode is ready for Semantic, and no
328 `semantic-inhibit-functions' disabled it, the current buffer is setup
329 to use Semantic, and `semantic-init-hook' is run."
330 ;; In upstream Semantic, the parser setup functions are called from
331 ;; mode hooks. In the version bundled with Emacs, we do it here.
332 (let ((entry (assq major-mode semantic-new-buffer-setup-functions)))
333 (when entry
334 (funcall (cdr entry))))
335 ;; Do stuff if semantic was activated by a mode hook in this buffer,
336 ;; and not afterwards disabled.
337 (when (and semantic--parse-table
338 (not (semantic-active-p))
339 (not (run-hook-with-args-until-success
340 'semantic-inhibit-functions)))
341 ;; Make sure that if this buffer is cloned, our tags and overlays
342 ;; don't go along for the ride.
343 (add-hook 'clone-indirect-buffer-hook 'semantic-clear-toplevel-cache
344 nil t)
345 ;; Specify that this function has done its work. At this point
346 ;; we can consider that semantic is active in this buffer.
347 (setq semantic-new-buffer-fcn-was-run t)
348 ;; Here are some buffer local variables we can initialize ourselves
349 ;; of a mode does not choose to do so.
350 (semantic-lex-init)
351 ;; Force this buffer to have its cache refreshed.
352 (semantic-clear-toplevel-cache)
353 ;; Call DB hooks before regular init hooks
354 (run-hooks 'semantic-init-db-hook)
355 ;; Set up semantic modes
356 (run-hooks 'semantic-init-hook)
357 ;; Set up major-mode specific semantic modes
358 (run-hooks 'semantic-init-mode-hook)))
360 (defun semantic-fetch-tags-fast ()
361 "For use in a hook. When only a partial reparse is needed, reparse."
362 (condition-case nil
363 (if (semantic-parse-tree-needs-update-p)
364 (semantic-fetch-tags))
365 (error nil))
366 semantic--buffer-cache)
368 ;;; Parsing Commands
370 (eval-when-compile
371 (condition-case nil (require 'pp) (error nil)))
373 (defvar semantic-edebug nil
374 "When non-nil, activate the interactive parsing debugger.
375 Do not set this yourself. Call `semantic-debug'.")
377 (defsubst semantic-elapsed-time (start end)
378 "Copied from elp.el. Was `elp-elapsed-time'.
379 Arguments START and END bound the time being calculated."
380 (float-time (time-subtract end start)))
382 (defun bovinate (&optional clear)
383 "Parse the current buffer. Show output in a temp buffer.
384 Optional argument CLEAR will clear the cache before parsing.
385 If CLEAR is negative, it will do a full reparse, and also not display
386 the output buffer."
387 (interactive "P")
388 (if clear (semantic-clear-toplevel-cache))
389 (if (eq clear '-) (setq clear -1))
390 (let* ((start (current-time))
391 (out (semantic-fetch-tags))
392 (end (current-time)))
393 (message "Retrieving tags took %.2f seconds."
394 (semantic-elapsed-time start end))
395 (when (or (null clear) (not (listp clear)))
396 (pop-to-buffer "*Parser Output*")
397 (require 'pp)
398 (erase-buffer)
399 (insert (pp-to-string out))
400 (goto-char (point-min)))))
402 ;;; Functions of the parser plug-in API
404 ;; Overload these functions to create new types of parsers.
406 (define-overloadable-function semantic-parse-stream (stream nonterminal)
407 "Parse STREAM, starting at the first NONTERMINAL rule.
408 For bovine and wisent based parsers, STREAM is from the output of
409 `semantic-lex', and NONTERMINAL is a rule in the appropriate language
410 specific rules file.
411 The default parser table used for bovine or wisent based parsers is
412 `semantic--parse-table'.
414 Must return a list: (STREAM TAGS) where STREAM is the unused elements
415 from STREAM, and TAGS is the list of semantic tags found; usually only
416 one tag is returned with the exception of compound statements.")
418 (define-overloadable-function semantic-parse-changes ()
419 "Reparse changes in the current buffer.
420 The list of changes are tracked as a series of overlays in the buffer.
421 When overloading this function, use `semantic-changes-in-region' to
422 analyze.")
424 (define-overloadable-function semantic-parse-region
425 (start end &optional nonterminal depth returnonerror)
426 "Parse the area between START and END, and return any tags found.
427 If END needs to be extended due to a lexical token being too large, it
428 will be silently ignored.
430 Optional arguments:
431 NONTERMINAL is the rule to start parsing at.
432 DEPTH specifies the lexical depth to descend for parsers that use
433 lexical analysis as their first step.
434 RETURNONERROR specifies that parsing should stop on the first
435 unmatched syntax encountered. When nil, parsing skips the syntax,
436 adding it to the unmatched syntax cache.
438 Must return a list of semantic tags which have been cooked
439 \(repositioned properly) but which DO NOT HAVE OVERLAYS associated
440 with them. When overloading this function, use `semantic--tag-expand'
441 to cook raw tags.")
443 (defun semantic-parse-region-default
444 (start end &optional nonterminal depth returnonerror)
445 "Parse the area between START and END, and return any tags found.
446 If END needs to be extended due to a lexical token being too large,
447 it will be silently ignored.
448 Optional arguments:
449 NONTERMINAL is the rule to start parsing at if it is known.
450 DEPTH specifies the lexical depth to scan.
451 RETURNONERROR specifies that parsing should end when encountering
452 unterminated syntax."
453 (when (or (null semantic--parse-table) (eq semantic--parse-table t))
454 ;; If there is no table, or it was set to t, then we are here by
455 ;; some other mistake. Do not throw an error deep in the parser.
456 (error "No support found to parse buffer %S" (buffer-name)))
457 (save-restriction
458 (widen)
459 (when (or (< end start) (> end (point-max)))
460 (error "Invalid parse region bounds %S, %S" start end))
461 (semantic-repeat-parse-whole-stream
462 (or (cdr (assq start semantic-lex-block-streams))
463 (semantic-lex start end depth))
464 nonterminal returnonerror)))
466 ;;; Parsing functions
468 (defun semantic-set-unmatched-syntax-cache (unmatched-syntax)
469 "Set the unmatched syntax cache.
470 Argument UNMATCHED-SYNTAX is the syntax to set into the cache."
471 ;; This function is not actually called by the main parse loop.
472 ;; This is intended for use by semanticdb.
473 (setq semantic-unmatched-syntax-cache unmatched-syntax
474 semantic-unmatched-syntax-cache-check nil)
475 ;; Refresh the display of unmatched syntax tokens if enabled
476 (run-hook-with-args 'semantic-unmatched-syntax-hook
477 semantic-unmatched-syntax-cache))
479 (defun semantic-clear-unmatched-syntax-cache ()
480 "Clear the cache of unmatched syntax tokens."
481 (setq semantic-unmatched-syntax-cache nil
482 semantic-unmatched-syntax-cache-check t))
484 (defun semantic-unmatched-syntax-tokens ()
485 "Return the list of unmatched syntax tokens."
486 ;; If the cache need refresh then do a full re-parse.
487 (if (semantic--umatched-syntax-needs-refresh-p)
488 ;; To avoid a recursive call, temporarily disable
489 ;; `semantic-unmatched-syntax-hook'.
490 (let (semantic-unmatched-syntax-hook)
491 (condition-case nil
492 (progn
493 (semantic-clear-toplevel-cache)
494 (semantic-fetch-tags))
495 (quit
496 (message "semantic-unmatched-syntax-tokens:\
497 parsing of buffer canceled"))
499 semantic-unmatched-syntax-cache)
501 (defun semantic-clear-toplevel-cache ()
502 "Clear the toplevel tag cache for the current buffer.
503 Clearing the cache will force a complete reparse next time a tag list
504 is requested."
505 (interactive)
506 (run-hooks 'semantic-before-toplevel-cache-flush-hook)
507 (setq semantic--buffer-cache nil)
508 (semantic-clear-unmatched-syntax-cache)
509 (semantic-clear-parser-warnings)
510 ;; Nuke all semantic overlays. This is faster than deleting based
511 ;; on our data structure.
512 (let ((l (semantic-overlay-lists)))
513 (mapc 'semantic-delete-overlay-maybe (car l))
514 (mapc 'semantic-delete-overlay-maybe (cdr l))
516 (semantic-parse-tree-set-needs-rebuild)
517 ;; Remove this hook which tracks if a buffer is up to date or not.
518 (remove-hook 'after-change-functions 'semantic-change-function t)
519 ;; Old model. Delete someday.
520 ;;(run-hooks 'semantic-after-toplevel-bovinate-hook)
522 (run-hook-with-args 'semantic-after-toplevel-cache-change-hook
523 semantic--buffer-cache)
525 (setq semantic--completion-cache nil))
527 (defvar semantic-bovinate-nonterminal-check-obarray)
529 (defun semantic--set-buffer-cache (tagtable)
530 "Set the toplevel tag cache to TAGTABLE."
531 (setq semantic--buffer-cache tagtable
532 semantic-unmatched-syntax-cache-check nil)
533 ;; This is specific to the bovine parser.
534 (set (make-local-variable 'semantic-bovinate-nonterminal-check-obarray)
535 nil)
536 (semantic-parse-tree-set-up-to-date)
537 (semantic-make-local-hook 'after-change-functions)
538 (add-hook 'after-change-functions 'semantic-change-function nil t)
539 (run-hook-with-args 'semantic-after-toplevel-cache-change-hook
540 semantic--buffer-cache)
541 (setq semantic--completion-cache nil)
542 ;; Refresh the display of unmatched syntax tokens if enabled
543 (run-hook-with-args 'semantic-unmatched-syntax-hook
544 semantic-unmatched-syntax-cache)
545 ;; Old Semantic 1.3 hook API. Maybe useful forever?
546 (run-hooks 'semantic-after-toplevel-bovinate-hook)
549 (defvar semantic-working-type 'percent
550 "The type of working message to use when parsing.
551 'percent means we are doing a linear parse through the buffer.
552 'dynamic means we are reparsing specific tags.")
553 (semantic-varalias-obsolete 'semantic-bovination-working-type
554 'semantic-working-type "23.2")
556 (defvar semantic-minimum-working-buffer-size (* 1024 5)
557 "The minimum size of a buffer before working messages are displayed.
558 Buffers smaller than this will parse silently.
559 Buffers larger than this will display the working progress bar.")
561 (defsubst semantic-parser-working-message (&optional arg)
562 "Return the message string displayed while parsing.
563 If optional argument ARG is non-nil it is appended to the message
564 string."
565 (concat "Parsing"
566 (if arg (format " %s" arg))
567 (if semantic-parser-name (format " (%s)" semantic-parser-name))
568 "..."))
570 ;;; Application Parser Entry Points
572 ;; The best way to call the parser from programs is via
573 ;; `semantic-fetch-tags'. This, in turn, uses other internal
574 ;; API functions which plug-in parsers can take advantage of.
576 (defun semantic-fetch-tags ()
577 "Fetch semantic tags from the current buffer.
578 If the buffer cache is up to date, return that.
579 If the buffer cache is out of date, attempt an incremental reparse.
580 If the buffer has not been parsed before, or if the incremental reparse
581 fails, then parse the entire buffer.
582 If a lexical error had been previously discovered and the buffer
583 was marked unparseable, then do nothing, and return the cache."
584 (and
585 ;; Is this a semantic enabled buffer?
586 (semantic-active-p)
587 ;; Application hooks say the buffer is safe for parsing
588 (run-hook-with-args-until-failure
589 'semantic-before-toplevel-bovination-hook)
590 (run-hook-with-args-until-failure
591 'semantic--before-fetch-tags-hook)
592 ;; If the buffer was previously marked unparseable,
593 ;; then don't waste our time.
594 (not (semantic-parse-tree-unparseable-p))
595 ;; The parse tree actually needs to be refreshed
596 (not (semantic-parse-tree-up-to-date-p))
597 ;; So do it!
598 (let* ((gc-cons-threshold (max gc-cons-threshold 10000000))
599 (semantic-lex-block-streams nil)
600 (res nil))
601 (garbage-collect)
602 (cond
604 ;;;; Try the incremental parser to do a fast update.
605 ((semantic-parse-tree-needs-update-p)
606 (setq res (semantic-parse-changes))
607 (if (semantic-parse-tree-needs-rebuild-p)
608 ;; If the partial reparse fails, jump to a full reparse.
609 (semantic-fetch-tags)
610 ;; Clear the cache of unmatched syntax tokens
612 ;; NOTE TO SELF:
614 ;; Move this into the incremental parser. This is a bug.
616 (semantic-clear-unmatched-syntax-cache)
617 (run-hook-with-args ;; Let hooks know the updated tags
618 'semantic-after-partial-cache-change-hook res))
619 (setq semantic--completion-cache nil))
621 ;;;; Parse the whole system.
622 ((semantic-parse-tree-needs-rebuild-p)
623 ;; Use Emacs's built-in progress-reporter (only interactive).
624 (if noninteractive
625 (setq res (semantic-parse-region (point-min) (point-max)))
626 (let ((semantic--progress-reporter
627 (and (>= (point-max) semantic-minimum-working-buffer-size)
628 (eq semantic-working-type 'percent)
629 (make-progress-reporter
630 (semantic-parser-working-message (buffer-name))
631 0 100))))
632 (setq res (semantic-parse-region (point-min) (point-max)))
633 (if semantic--progress-reporter
634 (progress-reporter-done semantic--progress-reporter))))
636 ;; Clear the caches when we see there were no errors.
637 ;; But preserve the unmatched syntax cache and warnings!
638 (let (semantic-unmatched-syntax-cache
639 semantic-unmatched-syntax-cache-check
640 semantic-parser-warnings)
641 (semantic-clear-toplevel-cache))
642 ;; Set up the new overlays
643 (semantic--tag-link-list-to-buffer res)
644 ;; Set up the cache with the new results
645 (semantic--set-buffer-cache res)
646 ))))
648 ;; Always return the current parse tree.
649 semantic--buffer-cache)
651 (defun semantic-refresh-tags-safe ()
652 "Refresh the current buffer's tags safely.
654 Return non-nil if the refresh was successful.
655 Return nil if there is some sort of syntax error preventing a reparse.
657 Does nothing if the current buffer doesn't need reparsing."
659 ;; These checks actually occur in `semantic-fetch-tags', but if we
660 ;; do them here, then all the bovination hooks are not run, and
661 ;; we save lots of time.
662 (cond
663 ;; If the buffer was previously marked unparseable,
664 ;; then don't waste our time.
665 ((semantic-parse-tree-unparseable-p)
666 nil)
667 ;; The parse tree is already ok.
668 ((semantic-parse-tree-up-to-date-p)
671 (let* ((inhibit-quit nil)
672 (lexically-safe t)
675 (unwind-protect
676 ;; Perform the parsing.
677 (progn
678 (when (semantic-lex-catch-errors safe-refresh
679 (save-excursion (semantic-fetch-tags))
680 nil)
681 ;; If we are here, it is because the lexical step failed,
682 ;; probably due to unterminated lists or something like that.
684 ;; We do nothing, and just wait for the next idle timer
685 ;; to go off. In the meantime, remember this, and make sure
686 ;; no other idle services can get executed.
687 (setq lexically-safe nil))
690 ;; Return if we are lexically safe
691 lexically-safe))))
693 (defun semantic-bovinate-toplevel (&optional ignored)
694 "Backward compatibility function."
695 (semantic-fetch-tags))
696 (make-obsolete 'semantic-bovinate-toplevel 'semantic-fetch-tags "23.2")
698 ;; Another approach is to let Emacs call the parser on idle time, when
699 ;; needed, use `semantic-fetch-available-tags' to only retrieve
700 ;; available tags, and setup the `semantic-after-*-hook' hooks to
701 ;; synchronize with new tags when they become available.
703 (defsubst semantic-fetch-available-tags ()
704 "Fetch available semantic tags from the current buffer.
705 That is, return tags currently in the cache without parsing the
706 current buffer.
707 Parse operations happen asynchronously when needed on Emacs idle time.
708 Use the `semantic-after-toplevel-cache-change-hook' and
709 `semantic-after-partial-cache-change-hook' hooks to synchronize with
710 new tags when they become available."
711 semantic--buffer-cache)
713 ;;; Iterative parser helper function
715 ;; Iterative parsers are better than rule-based iterative functions
716 ;; in that they can handle obscure errors more cleanly.
718 ;; `semantic-repeat-parse-whole-stream' abstracts this action for
719 ;; other parser centric routines.
721 (defun semantic-repeat-parse-whole-stream
722 (stream nonterm &optional returnonerror)
723 "Iteratively parse the entire stream STREAM starting with NONTERM.
724 Optional argument RETURNONERROR indicates that the parser should exit
725 with the current results on a parse error.
726 This function returns semantic tags without overlays."
727 (let ((result nil)
728 (case-fold-search semantic-case-fold)
729 nontermsym tag)
730 (while stream
731 (setq nontermsym (semantic-parse-stream stream nonterm)
732 tag (car (cdr nontermsym)))
733 (if (not nontermsym)
734 (error "Parse error @ %d" (car (cdr (car stream)))))
735 (if (eq (car nontermsym) stream)
736 (error "Parser error: Infinite loop?"))
737 (if tag
738 (if (car tag)
739 (setq tag (mapcar
740 #'(lambda (tag)
741 ;; Set the 'reparse-symbol property to
742 ;; NONTERM unless it was already setup
743 ;; by a tag expander
744 (or (semantic--tag-get-property
745 tag 'reparse-symbol)
746 (semantic--tag-put-property
747 tag 'reparse-symbol nonterm))
748 tag)
749 (semantic--tag-expand tag))
750 result (append result tag))
751 ;; No error in this case, a purposeful nil means don't
752 ;; store anything.
754 (if returnonerror
755 (setq stream nil)
756 ;; The current item in the stream didn't match, so add it to
757 ;; the list of syntax items which didn't match.
758 (setq semantic-unmatched-syntax-cache
759 (cons (car stream) semantic-unmatched-syntax-cache))
761 ;; Designated to ignore.
762 (setq stream (car nontermsym))
763 (if stream
764 ;; Use Emacs's built-in progress reporter:
765 (and (boundp 'semantic--progress-reporter)
766 semantic--progress-reporter
767 (eq semantic-working-type 'percent)
768 (progress-reporter-update
769 semantic--progress-reporter
770 (/ (* 100 (semantic-lex-token-start (car stream)))
771 (point-max))))))
772 result))
774 ;;; Parsing Warnings:
776 ;; Parsing a buffer may result in non-critical things that we should
777 ;; alert the user to without interrupting the normal flow.
779 ;; Any parser can use this API to provide a list of warnings during a
780 ;; parse which a user may want to investigate.
781 (defvar semantic-parser-warnings nil
782 "A list of parser warnings since the last full reparse.")
783 (make-variable-buffer-local 'semantic-parser-warnings)
785 (defun semantic-clear-parser-warnings ()
786 "Clear the current list of parser warnings for this buffer."
787 (setq semantic-parser-warnings nil))
789 (defun semantic-push-parser-warning (warning start end)
790 "Add a parser WARNING that covers text from START to END."
791 (setq semantic-parser-warnings
792 (cons (cons warning (cons start end))
793 semantic-parser-warnings)))
795 (defun semantic-dump-parser-warnings ()
796 "Dump any parser warnings."
797 (interactive)
798 (if semantic-parser-warnings
799 (let ((pw semantic-parser-warnings))
800 (pop-to-buffer "*Parser Warnings*")
801 (require 'pp)
802 (erase-buffer)
803 (insert (pp-to-string pw))
804 (goto-char (point-min)))
805 (message "No parser warnings.")))
809 ;;; Compatibility:
811 ;; Semantic 1.x parser action helper functions, used by some parsers.
812 ;; Please move away from these functions, and try using semantic 2.x
813 ;; interfaces instead.
815 (defsubst semantic-bovinate-region-until-error
816 (start end nonterm &optional depth)
817 "NOTE: Use `semantic-parse-region' instead.
819 Bovinate between START and END starting with NONTERM.
820 Optional DEPTH specifies how many levels of parenthesis to enter.
821 This command will parse until an error is encountered, and return
822 the list of everything found until that moment.
823 This is meant for finding variable definitions at the beginning of
824 code blocks in methods. If `bovine-inner-scope' can also support
825 commands, use `semantic-bovinate-from-nonterminal-full'."
826 (semantic-parse-region start end nonterm depth t))
827 (make-obsolete 'semantic-bovinate-region-until-error
828 'semantic-parse-region "23.2")
830 (defsubst semantic-bovinate-from-nonterminal
831 (start end nonterm &optional depth length)
832 "Bovinate from within a nonterminal lambda from START to END.
833 Argument NONTERM is the nonterminal symbol to start with.
834 Optional argument DEPTH is the depth of lists to dive into. When used
835 in a `lambda' of a MATCH-LIST, there is no need to include a START and
836 END part.
837 Optional argument LENGTH specifies we are only interested in LENGTH
838 tokens."
839 (car-safe (cdr (semantic-parse-stream
840 (semantic-lex start end (or depth 1) length)
841 nonterm))))
843 (defsubst semantic-bovinate-from-nonterminal-full
844 (start end nonterm &optional depth)
845 "NOTE: Use `semantic-parse-region' instead.
847 Bovinate from within a nonterminal lambda from START to END.
848 Iterates until all the space between START and END is exhausted.
849 Argument NONTERM is the nonterminal symbol to start with.
850 If NONTERM is nil, use `bovine-block-toplevel'.
851 Optional argument DEPTH is the depth of lists to dive into.
852 When used in a `lambda' of a MATCH-LIST, there is no need to include
853 a START and END part."
854 (semantic-parse-region start end nonterm (or depth 1)))
855 (make-obsolete 'semantic-bovinate-from-nonterminal-full
856 'semantic-parse-region "23.2")
858 ;;; User interface
860 (defun semantic-force-refresh ()
861 "Force a full refresh of the current buffer's tags.
862 Throw away all the old tags, and recreate the tag database."
863 (interactive)
864 (semantic-clear-toplevel-cache)
865 (semantic-fetch-tags)
866 (message "Buffer reparsed."))
868 (defvar semantic-mode-map
869 (let ((map (make-sparse-keymap)))
870 ;; Key bindings:
871 ;; (define-key km "f" 'senator-search-set-tag-class-filter)
872 ;; (define-key km "i" 'senator-isearch-toggle-semantic-mode)
873 (define-key map "\C-c,j" 'semantic-complete-jump-local)
874 (define-key map "\C-c,J" 'semantic-complete-jump)
875 (define-key map "\C-c,m" 'semantic-complete-jump-local-members)
876 (define-key map "\C-c,g" 'semantic-symref-symbol)
877 (define-key map "\C-c,G" 'semantic-symref)
878 (define-key map "\C-c,p" 'senator-previous-tag)
879 (define-key map "\C-c,n" 'senator-next-tag)
880 (define-key map "\C-c,u" 'senator-go-to-up-reference)
881 (define-key map "\C-c, " 'semantic-complete-analyze-inline)
882 (define-key map "\C-c,\C-w" 'senator-kill-tag)
883 (define-key map "\C-c,\M-w" 'senator-copy-tag)
884 (define-key map "\C-c,\C-y" 'senator-yank-tag)
885 (define-key map "\C-c,r" 'senator-copy-tag-to-register)
886 (define-key map "\C-c,," 'semantic-force-refresh)
887 (define-key map [?\C-c ?, up] 'senator-transpose-tags-up)
888 (define-key map [?\C-c ?, down] 'senator-transpose-tags-down)
889 (define-key map "\C-c,l" 'semantic-analyze-possible-completions)
890 ;; This hack avoids showing the CEDET menu twice if ede-minor-mode
891 ;; and Semantic are both enabled. Is there a better way?
892 (define-key map [menu-bar cedet-menu]
893 (list 'menu-item "Development" cedet-menu-map
894 :enable (quote (not (and menu-bar-mode
895 (bound-and-true-p global-ede-mode))))))
896 ;; (define-key km "-" 'senator-fold-tag)
897 ;; (define-key km "+" 'senator-unfold-tag)
898 map))
900 ;; Activate the Semantic items in cedet-menu-map
901 (let ((navigate-menu (make-sparse-keymap "Navigate Tags"))
902 (edit-menu (make-sparse-keymap "Edit Tags")))
904 ;; Edit Tags submenu:
905 (define-key edit-menu [semantic-analyze-possible-completions]
906 '(menu-item "List Completions" semantic-analyze-possible-completions
907 :enable (semantic-active-p)
908 :help "Display a list of completions for the tag at point"))
909 (define-key edit-menu [semantic-complete-analyze-inline]
910 '(menu-item "Complete Tag Inline" semantic-complete-analyze-inline
911 :enable (semantic-active-p)
912 :help "Display inline completion for the tag at point"))
913 (define-key edit-menu [semantic-completion-separator]
914 '("--"))
915 (define-key edit-menu [senator-transpose-tags-down]
916 '(menu-item "Transpose Tags Down" senator-transpose-tags-down
917 :enable (and (semantic-active-p)
918 (semantic-current-tag))
919 :help "Transpose the current tag and the next tag"))
920 (define-key edit-menu [senator-transpose-tags-up]
921 '(menu-item "Transpose Tags Up" senator-transpose-tags-up
922 :enable (and (semantic-active-p)
923 (semantic-current-tag))
924 :help "Transpose the current tag and the previous tag"))
925 (define-key edit-menu [semantic-edit-separator]
926 '("--"))
927 (define-key edit-menu [senator-yank-tag]
928 '(menu-item "Yank Tag" senator-yank-tag
929 :enable (and (boundp 'senator-tag-ring)
930 (not (ring-empty-p senator-tag-ring)))
931 :help "Yank the head of the tag ring into the buffer"))
932 (define-key edit-menu [senator-copy-tag-to-register]
933 '(menu-item "Copy Tag To Register" senator-copy-tag-to-register
934 :enable (and (semantic-active-p)
935 (semantic-current-tag))
936 :help "Yank the head of the tag ring into the buffer"))
937 (define-key edit-menu [senator-copy-tag]
938 '(menu-item "Copy Tag" senator-copy-tag
939 :enable (and (semantic-active-p)
940 (semantic-current-tag))
941 :help "Copy the current tag to the tag ring"))
942 (define-key edit-menu [senator-kill-tag]
943 '(menu-item "Kill Tag" senator-kill-tag
944 :enable (and (semantic-active-p)
945 (semantic-current-tag))
946 :help "Kill the current tag, and copy it to the tag ring"))
948 ;; Navigate Tags submenu:
949 (define-key navigate-menu [senator-narrow-to-defun]
950 '(menu-item "Narrow to Tag" senator-narrow-to-defun
951 :enable (and (semantic-active-p)
952 (semantic-current-tag))
953 :help "Narrow the buffer to the bounds of the current tag"))
954 (define-key navigate-menu [semantic-narrow-to-defun-separator]
955 '("--"))
956 (define-key navigate-menu [semantic-symref-symbol]
957 '(menu-item "Find Tag References..." semantic-symref-symbol
958 :enable (semantic-active-p)
959 :help "Read a tag and list the references to it"))
960 (define-key navigate-menu [semantic-complete-jump]
961 '(menu-item "Find Tag Globally..." semantic-complete-jump
962 :enable (semantic-active-p)
963 :help "Read a tag name and find it in the current project"))
964 (define-key navigate-menu [semantic-complete-jump-local-members]
965 '(menu-item "Find Local Members ..." semantic-complete-jump-local-members
966 :enable (semantic-active-p)
967 :help "Read a tag name and find a local member with that name"))
968 (define-key navigate-menu [semantic-complete-jump-local]
969 '(menu-item "Find Tag in This Buffer..." semantic-complete-jump-local
970 :enable (semantic-active-p)
971 :help "Read a tag name and find it in this buffer"))
972 (define-key navigate-menu [semantic-navigation-separator]
973 '("--"))
974 (define-key navigate-menu [senator-go-to-up-reference]
975 '(menu-item "Parent Tag" senator-go-to-up-reference
976 :enable (semantic-active-p)
977 :help "Navigate up one reference by tag"))
978 (define-key navigate-menu [senator-next-tag]
979 '(menu-item "Next Tag" senator-next-tag
980 :enable (semantic-active-p)
981 :help "Go to the next tag"))
982 (define-key navigate-menu [senator-previous-tag]
983 '(menu-item "Previous Tag" senator-previous-tag
984 :enable (semantic-active-p)
985 :help "Go to the previous tag"))
987 ;; Top level menu items:
988 (define-key cedet-menu-map [semantic-force-refresh]
989 '(menu-item "Reparse Buffer" semantic-force-refresh
990 :help "Force a full reparse of the current buffer"
991 :visible semantic-mode
992 :enable (semantic-active-p)))
993 (define-key cedet-menu-map [semantic-edit-menu]
994 `(menu-item "Edit Tags" ,edit-menu
995 :visible semantic-mode))
996 (define-key cedet-menu-map [navigate-menu]
997 `(menu-item "Navigate Tags" ,navigate-menu
998 :visible semantic-mode))
999 (define-key cedet-menu-map [semantic-options-separator]
1000 '("--"))
1001 (define-key cedet-menu-map [global-semantic-highlight-func-mode]
1002 '(menu-item "Highlight Current Function" global-semantic-highlight-func-mode
1003 :help "Highlight the tag at point"
1004 :visible semantic-mode
1005 :button (:toggle . global-semantic-highlight-func-mode)))
1006 (define-key cedet-menu-map [global-semantic-stickyfunc-mode]
1007 '(menu-item "Stick Top Tag to Headerline" global-semantic-stickyfunc-mode
1008 :help "Stick the tag scrolled off the top of the buffer into the header line"
1009 :visible semantic-mode
1010 :button (:toggle . (bound-and-true-p
1011 global-semantic-stickyfunc-mode))))
1012 (define-key cedet-menu-map [global-semantic-decoration-mode]
1013 '(menu-item "Decorate Tags" global-semantic-decoration-mode
1014 :help "Decorate tags based on tag attributes"
1015 :visible semantic-mode
1016 :button (:toggle . (bound-and-true-p
1017 global-semantic-decoration-mode))))
1018 (define-key cedet-menu-map [global-semantic-idle-completions-mode]
1019 '(menu-item "Show Tag Completions" global-semantic-idle-completions-mode
1020 :help "Show tag completions when idle"
1021 :visible semantic-mode
1022 :enable global-semantic-idle-scheduler-mode
1023 :button (:toggle . global-semantic-idle-completions-mode)))
1024 (define-key cedet-menu-map [global-semantic-idle-summary-mode]
1025 '(menu-item "Show Tag Summaries" global-semantic-idle-summary-mode
1026 :help "Show tag summaries when idle"
1027 :visible semantic-mode
1028 :enable global-semantic-idle-scheduler-mode
1029 :button (:toggle . global-semantic-idle-summary-mode)))
1030 (define-key cedet-menu-map [global-semantic-idle-scheduler-mode]
1031 '(menu-item "Reparse When Idle" global-semantic-idle-scheduler-mode
1032 :help "Keep a buffer's parse tree up to date when idle"
1033 :visible semantic-mode
1034 :button (:toggle . global-semantic-idle-scheduler-mode)))
1035 (define-key cedet-menu-map [global-semanticdb-minor-mode]
1036 '(menu-item "Semantic Database" global-semanticdb-minor-mode
1037 :help "Store tag information in a database"
1038 :visible semantic-mode
1039 :button (:toggle . global-semanticdb-minor-mode))))
1041 ;; The `semantic-mode' command, in conjunction with the
1042 ;; `semantic-default-submodes' variable, toggles Semantic's various
1043 ;; auxiliary minor modes.
1045 (defvar semantic-load-system-cache-loaded nil
1046 "Non-nil when the Semantic system caches have been loaded.
1047 Prevent this load system from loading files in twice.")
1049 (defconst semantic-submode-list
1050 '(global-semantic-highlight-func-mode
1051 global-semantic-decoration-mode
1052 global-semantic-stickyfunc-mode
1053 global-semantic-idle-completions-mode
1054 global-semantic-idle-scheduler-mode
1055 global-semanticdb-minor-mode
1056 global-semantic-idle-summary-mode
1057 global-semantic-mru-bookmark-mode
1058 global-cedet-m3-minor-mode
1059 global-semantic-idle-local-symbol-highlight-mode
1060 global-semantic-highlight-edits-mode
1061 global-semantic-show-unmatched-syntax-mode
1062 global-semantic-show-parser-state-mode)
1063 "List of auxiliary minor modes in the Semantic package.")
1065 ;;;###autoload
1066 (defcustom semantic-default-submodes
1067 '(global-semantic-idle-scheduler-mode global-semanticdb-minor-mode)
1068 "List of auxiliary Semantic minor modes enabled by `semantic-mode'.
1069 The possible elements of this list include the following:
1071 `global-semanticdb-minor-mode' - Maintain tag database.
1072 `global-semantic-idle-scheduler-mode' - Reparse buffer when idle.
1073 `global-semantic-idle-summary-mode' - Show summary of tag at point.
1074 `global-semantic-idle-completions-mode' - Show completions when idle.
1075 `global-semantic-decoration-mode' - Additional tag decorations.
1076 `global-semantic-highlight-func-mode' - Highlight the current tag.
1077 `global-semantic-stickyfunc-mode' - Show current fun in header line.
1078 `global-semantic-mru-bookmark-mode' - Provide `switch-to-buffer'-like
1079 keybinding for tag names.
1080 `global-cedet-m3-minor-mode' - A mouse 3 context menu.
1081 `global-semantic-idle-local-symbol-highlight-mode' - Highlight references
1082 of the symbol under point.
1083 The following modes are more targeted at people who want to see
1084 some internal information of the semantic parser in action:
1085 `global-semantic-highlight-edits-mode' - Visualize incremental parser by
1086 highlighting not-yet parsed changes.
1087 `global-semantic-show-unmatched-syntax-mode' - Highlight unmatched lexical
1088 syntax tokens.
1089 `global-semantic-show-parser-state-mode' - Display the parser cache state."
1090 :group 'semantic
1091 :type `(set ,@(mapcar (lambda (c) (list 'const c))
1092 semantic-submode-list)))
1094 ;;;###autoload
1095 (define-minor-mode semantic-mode
1096 "Toggle parser features (Semantic mode).
1097 With a prefix argument ARG, enable Semantic mode if ARG is
1098 positive, and disable it otherwise. If called from Lisp, enable
1099 Semantic mode if ARG is omitted or nil.
1101 In Semantic mode, Emacs parses the buffers you visit for their
1102 semantic content. This information is used by a variety of
1103 auxiliary minor modes, listed in `semantic-default-submodes';
1104 all the minor modes in this list are also enabled when you enable
1105 Semantic mode.
1107 \\{semantic-mode-map}"
1108 :global t
1109 :group 'semantic
1110 (if semantic-mode
1111 ;; Turn on Semantic mode
1112 (progn
1113 ;; Enable all the global auxiliary minor modes in
1114 ;; `semantic-submode-list'.
1115 (dolist (mode semantic-submode-list)
1116 (if (memq mode semantic-default-submodes)
1117 (funcall mode 1)))
1118 (unless semantic-load-system-cache-loaded
1119 (setq semantic-load-system-cache-loaded t)
1120 (when (and (boundp 'semanticdb-default-system-save-directory)
1121 (stringp semanticdb-default-system-save-directory)
1122 (file-exists-p semanticdb-default-system-save-directory))
1123 (require 'semantic/db-ebrowse)
1124 (semanticdb-load-ebrowse-caches)))
1125 (add-hook 'mode-local-init-hook 'semantic-new-buffer-fcn)
1126 ;; Add semantic-ia-complete-symbol to
1127 ;; completion-at-point-functions, so that it is run from
1128 ;; M-TAB.
1129 (add-hook 'completion-at-point-functions
1130 'semantic-completion-at-point-function)
1131 (if global-ede-mode
1132 (define-key cedet-menu-map [cedet-menu-separator] '("--")))
1133 (dolist (b (buffer-list))
1134 (with-current-buffer b
1135 (semantic-new-buffer-fcn))))
1136 ;; Disable Semantic features. Removing everything Semantic has
1137 ;; introduced in the buffer is pretty much futile, but we have to
1138 ;; clean the hooks and delete Semantic-related overlays, so that
1139 ;; Semantic can be re-activated cleanly.
1140 (remove-hook 'mode-local-init-hook 'semantic-new-buffer-fcn)
1141 (remove-hook 'completion-at-point-functions
1142 'semantic-completion-at-point-function)
1143 (remove-hook 'after-change-functions
1144 'semantic-change-function)
1145 (define-key cedet-menu-map [cedet-menu-separator] nil)
1146 (define-key cedet-menu-map [semantic-options-separator] nil)
1147 ;; FIXME: handle semanticdb-load-ebrowse-caches
1148 (dolist (mode semantic-submode-list)
1149 (if (and (boundp mode) (eval mode))
1150 (funcall mode -1)))
1151 ;; Unlink buffer and clear cache
1152 (semantic--tag-unlink-cache-from-buffer)
1153 (setq semantic--buffer-cache nil)
1154 ;; Make sure we run the setup function if Semantic gets
1155 ;; re-activated.
1156 (setq semantic-new-buffer-fcn-was-run nil)))
1158 (defun semantic-completion-at-point-function ()
1159 'semantic-ia-complete-symbol)
1161 ;;; Autoload some functions that are not in semantic/loaddefs
1163 (autoload 'global-semantic-idle-completions-mode "semantic/idle"
1164 "Toggle global use of `semantic-idle-completions-mode'.
1165 If ARG is positive, enable, if it is negative, disable.
1166 If ARG is nil, then toggle." t nil)
1168 (autoload 'semantic-idle-completions-mode "semantic/idle"
1169 "Display a list of possible completions in a tooltip.
1171 This is a minor mode which performs actions during idle time.
1172 With prefix argument ARG, turn on if positive, otherwise off. The
1173 minor mode can be turned on only if semantic feature is available and
1174 the current buffer was set up for parsing. Return non-nil if the
1175 minor mode is enabled." t nil)
1177 (autoload 'global-semantic-idle-summary-mode "semantic/idle"
1178 "Toggle global use of `semantic-idle-summary-mode'.
1179 If ARG is positive, enable, if it is negative, disable.
1180 If ARG is nil, then toggle." t nil)
1182 (autoload 'semantic-idle-summary-mode "semantic/idle"
1183 "Display a tag summary of the lexical token under the cursor.
1184 Call `semantic-idle-summary-current-symbol-info' for getting the
1185 current tag to display information.
1187 This is a minor mode which performs actions during idle time.
1188 With prefix argument ARG, turn on if positive, otherwise off. The
1189 minor mode can be turned on only if semantic feature is available and
1190 the current buffer was set up for parsing. Return non-nil if the
1191 minor mode is enabled." t nil)
1193 (autoload 'global-semantic-idle-local-symbol-highlight-mode "semantic/idle"
1194 "Highlight the tag and symbol references of the symbol under point.
1195 Call `semantic-analyze-current-context' to find the reference tag.
1196 Call `semantic-symref-hits-in-region' to identify local references." t nil)
1198 (autoload 'srecode-template-setup-parser "srecode/srecode-template"
1199 "Set up buffer for parsing SRecode template files." t nil)
1201 (provide 'semantic)
1203 ;; Semantic-util is a part of the semantic API. Include it last
1204 ;; because it depends on semantic.
1205 (require 'semantic/util)
1207 ;; (require 'semantic/load)
1209 ;;; semantic.el ends here