Mercurial > hg > xemacs-beta
annotate lisp/symbol-syntax.el @ 5169:6c6d78781d59
cleanup of code related to xfree(), better KKCC backtrace capabilities, document XD_INLINE_LISP_OBJECT_BLOCK_PTR, fix some memory leaks, other code cleanup
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-03-24 Ben Wing <ben@xemacs.org>
* array.h:
* array.h (XD_LISP_DYNARR_DESC):
* dumper.c (pdump_register_sub):
* dumper.c (pdump_store_new_pointer_offsets):
* dumper.c (pdump_reloc_one_mc):
* elhash.c:
* gc.c (lispdesc_one_description_line_size):
* gc.c (kkcc_marking):
* lrecord.h:
* lrecord.h (IF_NEW_GC):
* lrecord.h (enum memory_description_type):
* lrecord.h (enum data_description_entry_flags):
* lrecord.h (struct opaque_convert_functions):
Rename XD_LISP_OBJECT_BLOCK_PTR to XD_INLINE_LISP_OBJECT_BLOCK_PTR
and document it in lrecord.h.
* data.c:
* data.c (finish_marking_weak_lists):
* data.c (continue_marking_ephemerons):
* data.c (finish_marking_ephemerons):
* elhash.c (MARK_OBJ):
* gc.c:
* gc.c (lispdesc_indirect_count_1):
* gc.c (struct):
* gc.c (kkcc_bt_push):
* gc.c (kkcc_gc_stack_push):
* gc.c (kkcc_gc_stack_push_lisp_object):
* gc.c (kkcc_gc_stack_repush_dirty_object):
* gc.c (KKCC_DO_CHECK_FREE):
* gc.c (mark_object_maybe_checking_free):
* gc.c (mark_struct_contents):
* gc.c (mark_lisp_object_block_contents):
* gc.c (register_for_finalization):
* gc.c (mark_object):
* gc.h:
* lisp.h:
* profile.c:
* profile.c (mark_profiling_info_maphash):
Clean up KKCC code related to DEBUG_XEMACS. Rename
kkcc_backtrace() to kkcc_backtrace_1() and add two params: a
`size' arg to control how many stack elements to print and a
`detailed' arg to control whether Lisp objects are printed using
`debug_print()'. Create front-ends to kkcc_backtrace_1() --
kkcc_detailed_backtrace(), kkcc_short_backtrace(),
kkcc_detailed_backtrace_full(), kkcc_short_backtrace_full(), as
well as shortened versions kbt(), kbts(), kbtf(), kbtsf() -- to
call it with various parameter values. Add an `is_lisp' field to
the stack and backtrace structures and use it to keep track of
whether an object pushed onto the stack is a Lisp object or a
non-Lisp structure; in kkcc_backtrace_1(), don't try to print a
non-Lisp structure as a Lisp object.
* elhash.c:
* extents.c:
* file-coding.c:
* lrecord.h:
* lrecord.h (IF_NEW_GC):
* marker.c:
* marker.c (Fmarker_buffer):
* mule-coding.c:
* number.c:
* rangetab.c:
* specifier.c:
New macros IF_OLD_GC(), IF_NEW_GC() to simplify declaration of
Lisp objects when a finalizer may exist in one but not the other.
Use them appropriately.
* extents.c (finalize_extent_info):
Don't zero out data->soe and data->extents before trying to free,
else we get memory leaks.
* lrecord.h (enum lrecord_type):
Make the first lrecord type have value 1 not 0 so that 0 remains
without implementation and attempts to interpret zeroed memory
as a Lisp object will be more obvious.
* array.c (Dynarr_free):
* device-msw.c (msprinter_delete_device):
* device-tty.c (free_tty_device_struct):
* device-tty.c (tty_delete_device):
* dialog-msw.c (handle_directory_dialog_box):
* dialog-x.c:
* emacs.c (free_argc_argv):
* emodules.c (attempt_module_delete):
* file-coding.c (chain_finalize_coding_stream_1):
* file-coding.c (chain_finalize_coding_stream):
* glyphs-eimage.c:
* glyphs-eimage.c (jpeg_instantiate_unwind):
* glyphs-eimage.c (gif_instantiate_unwind):
* glyphs-eimage.c (png_instantiate_unwind):
* glyphs-eimage.c (tiff_instantiate_unwind):
* imgproc.c:
* imgproc.c (build_EImage_quantable):
* insdel.c (uninit_buffer_text):
* mule-coding.c (iso2022_finalize_detection_state):
* objects-tty.c (tty_finalize_color_instance):
* objects-tty.c (tty_finalize_font_instance):
* objects-tty.c (tty_font_list):
* process.c:
* process.c (finalize_process):
* redisplay.c (add_propagation_runes):
* scrollbar-gtk.c:
* scrollbar-gtk.c (gtk_free_scrollbar_instance):
* scrollbar-gtk.c (gtk_release_scrollbar_instance):
* scrollbar-msw.c:
* scrollbar-msw.c (mswindows_free_scrollbar_instance):
* scrollbar-msw.c (unshow_that_mofo):
* scrollbar-x.c (x_free_scrollbar_instance):
* scrollbar-x.c (x_release_scrollbar_instance):
* select-x.c:
* select-x.c (x_handle_selection_request):
* syntax.c:
* syntax.c (uninit_buffer_syntax_cache):
* text.h (eifree):
If possible, whenever we call xfree() on a field in a structure,
set the field to 0 afterwards. A lot of code is written so that
it checks the value being freed to see if it is non-zero before
freeing it -- doing this and setting the value to 0 afterwards
ensures (a) we won't try to free twice if the cleanup code is
called twice; (b) if the object itself stays around, KKCC won't
crash when attempting to mark the freed field.
* rangetab.c:
Add a finalization method when not NEW_GC to avoid memory leaks.
(#### We still get memory leaks when NEW_GC; need to convert gap
array to Lisp object).
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Wed, 24 Mar 2010 01:22:51 -0500 |
| parents | 3ecd8885ac67 |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 428 | 1 ;;; symbol-syntax.el --- find chars with symbol syntax |
| 2 | |
| 3 ;; Copyright (C) 1992, 1993, 1997 Free Software Foundation, Inc. | |
| 4 ;; Copyright (C) 1995 Sun Microsystems. | |
| 5 | |
| 6 ;; Author: JBW, JBW@_CORTEZ | |
| 7 ;; Created: Wed Jun 20 15:15:34 1990 | |
| 8 ;; Maintainer: XEmacs Development Team | |
| 9 ;; Keywords: matching | |
| 10 | |
| 11 ;; This file is part of XEmacs. | |
| 12 | |
| 13 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 14 ;; under the terms of the GNU General Public License as published by | |
| 15 ;; the Free Software Foundation; either version 2, or (at your option) | |
| 16 ;; any later version. | |
| 17 | |
| 18 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 21 ;; General Public License for more details. | |
| 22 | |
| 23 ;; You should have received a copy of the GNU General Public License | |
| 24 ;; along with XEmacs; see the file COPYING. If not, write to the | |
| 25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 26 ;; Boston, MA 02111-1307, USA. | |
| 27 | |
| 28 ;;; Synched up with: Not in FSF. | |
| 29 | |
| 30 ;;; Commentary: | |
| 31 | |
| 32 ;; Last modified by: Ben Wing, ben@xemacs.org | |
| 33 ;; Last modified on: Mon Oct 2 02:32:05 GMT 1995 | |
| 34 | |
| 35 ;;; Code: | |
| 36 | |
| 37 (defvar symbol-syntax-table-alist nil) | |
| 38 ;; '((c-mode-syntax-table) | |
| 39 ;; (emacs-lisp-mode-syntax-table) | |
| 40 ;; (lisp-mode-syntax-table) | |
| 41 ;; (text-mode-syntax-table))) | |
| 42 | |
| 43 (defun update-symbol-syntax-table-alist () | |
| 44 (let ((alist symbol-syntax-table-alist) | |
| 45 item) | |
| 46 (while (consp alist) | |
| 47 (cond ((null (car alist)) | |
| 48 (error "Missing alist item")) | |
| 49 ((null (car (car alist))) | |
| 50 (error "Alist item with null car")) | |
| 51 ;; this functionality not used | |
| 52 ((symbolp (setq item (car (car alist)))) | |
| 53 (or (null (cdr (car alist))) | |
| 54 (error "Alist item expected to have null cdr")) | |
| 55 (while (symbolp item) | |
| 56 (setq item (symbol-value item))) | |
| 57 (setcar (car alist) item))) | |
| 58 (cond ((not (syntax-table-p (car (car alist)))) | |
| 59 (error "Alist item car expected to be symbol table")) | |
| 60 ((null (cdr (car alist))) | |
| 61 (setcdr (car alist) | |
| 62 (make-symbol-syntax-table (car (car alist)))))) | |
| 63 (setq alist (cdr alist))))) | |
| 64 | |
| 65 (defun get-symbol-syntax-table (norm-table) | |
| 66 (let (result) | |
| 67 (if (setq result (assq norm-table symbol-syntax-table-alist)) | |
| 68 nil | |
| 69 (update-symbol-syntax-table-alist) | |
| 70 (if (setq result (assq norm-table symbol-syntax-table-alist)) | |
| 71 nil | |
| 72 (setq symbol-syntax-table-alist | |
| 73 (cons (list norm-table) | |
| 74 symbol-syntax-table-alist)) | |
| 75 (update-symbol-syntax-table-alist) | |
| 76 (or (setq result (assq norm-table symbol-syntax-table-alist)) | |
| 77 (error "Syntax table missing from symbol-syntax-table-alist")))) | |
| 78 (or (setq result (cdr result)) | |
| 79 (error "Alist item has null cdr")) | |
| 80 (or (syntax-table-p result) | |
| 81 (error "Non-syntax-table item in alist")) | |
| 82 result)) | |
| 83 | |
| 84 (defun make-symbol-syntax-table (in-table) | |
| 85 (let ((out-table (copy-syntax-table in-table))) | |
| 86 (map-syntax-table | |
| 87 #'(lambda (key value) | |
| 88 (if (eq ?_ (char-syntax-from-code value)) | |
| 89 (put-char-table key (set-char-syntax-in-code value ?w) | |
| 90 out-table)) | |
| 91 nil) | |
| 92 out-table) | |
| 93 out-table)) | |
| 94 | |
| 95 ;; stuff for examining contents of syntax tables | |
| 96 ;;(show-chars-with-syntax | |
| 97 ;; '(c-mode-syntax-table | |
| 98 ;; emacs-lisp-mode-syntax-table | |
| 99 ;; lisp-mode-syntax-table | |
| 100 ;; text-mode-syntax-table) | |
| 101 ;; ?_) | |
| 102 | |
| 103 (defun show-chars-with-syntax (tables syntax) | |
| 104 (let ((schars nil)) | |
| 105 (unwind-protect | |
| 106 (while (consp tables) | |
| 107 (let* ((chars nil) | |
| 108 (table-symbol (car tables)) | |
| 109 (table table-symbol)) | |
| 110 (or (symbolp table-symbol) | |
| 111 (error "bad argument non-symbol")) | |
| 112 (while (symbolp table) | |
| 113 (setq table (symbol-value table))) | |
| 114 (map-syntax-table | |
| 115 #'(lambda (key value) | |
| 116 (if (eq syntax (char-syntax-from-code value)) | |
| 117 (setq chars (cons key chars))) | |
| 118 nil) | |
| 119 table) | |
| 120 (setq schars (cons (list table-symbol (nreverse chars)) | |
| 121 schars))) | |
| 122 (setq tables (cdr tables)))) | |
| 123 (nreverse schars))) | |
| 124 | |
| 125 (provide 'symbol-syntax) | |
| 126 | |
| 127 ;;; symbol-syntax.el ends here |