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* src/buffer.c (init_buffer_once): Initialize buffer_local_flags early.

Browse source 
* src/buffer.c (init_buffer_once): Initialize buffer_local_flags before
calling reset_buffer_local_variables, and make sure we initialize
it completely.
This commit is contained in:
Stefan Monnier 2015-01-11 17:38:04 -05:00
parent 509257822c
commit 23ffeb9015
2 changed files with 95 additions and 72 deletions
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6
src/ChangeLog
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@ -1,3 +1,9 @@
2015-01-11 Stefan Monnier <monnier@iro.umontreal.ca>
* buffer.c (init_buffer_once): Initialize buffer_local_flags before
calling reset_buffer_local_variables, and make sure we initialize
it completely.
2015-01-11 Dmitry Antipov <dmantipov@yandex.ru>
* coding.c (Fcoding_system_plist): Use common style for docstring.

161
src/buffer.c
View file

@ -5027,6 +5027,93 @@ init_buffer_once (void)
memset (buffer_permanent_local_flags, 0, sizeof buffer_permanent_local_flags);
/* 0 means not a lisp var, -1 means always local, else mask. */
memset (&buffer_local_flags, 0, sizeof buffer_local_flags);
bset_filename (&buffer_local_flags, make_number (-1));
bset_directory (&buffer_local_flags, make_number (-1));
bset_backed_up (&buffer_local_flags, make_number (-1));
bset_save_length (&buffer_local_flags, make_number (-1));
bset_auto_save_file_name (&buffer_local_flags, make_number (-1));
bset_read_only (&buffer_local_flags, make_number (-1));
bset_major_mode (&buffer_local_flags, make_number (-1));
bset_mode_name (&buffer_local_flags, make_number (-1));
bset_undo_list (&buffer_local_flags, make_number (-1));
bset_mark_active (&buffer_local_flags, make_number (-1));
bset_point_before_scroll (&buffer_local_flags, make_number (-1));
bset_file_truename (&buffer_local_flags, make_number (-1));
bset_invisibility_spec (&buffer_local_flags, make_number (-1));
bset_file_format (&buffer_local_flags, make_number (-1));
bset_auto_save_file_format (&buffer_local_flags, make_number (-1));
bset_display_count (&buffer_local_flags, make_number (-1));
bset_display_time (&buffer_local_flags, make_number (-1));
bset_enable_multibyte_characters (&buffer_local_flags, make_number (-1));
/* These used to be stuck at 0 by default, but now that the all-zero value
means Qnil, we have to initialize them explicitly. */
bset_name (&buffer_local_flags, make_number (0));
bset_mark (&buffer_local_flags, make_number (0));
bset_local_var_alist (&buffer_local_flags, make_number (0));
bset_keymap (&buffer_local_flags, make_number (0));
bset_downcase_table (&buffer_local_flags, make_number (0));
bset_upcase_table (&buffer_local_flags, make_number (0));
bset_case_canon_table (&buffer_local_flags, make_number (0));
bset_case_eqv_table (&buffer_local_flags, make_number (0));
bset_minor_modes (&buffer_local_flags, make_number (0));
bset_width_table (&buffer_local_flags, make_number (0));
bset_pt_marker (&buffer_local_flags, make_number (0));
bset_begv_marker (&buffer_local_flags, make_number (0));
bset_zv_marker (&buffer_local_flags, make_number (0));
bset_last_selected_window (&buffer_local_flags, make_number (0));
idx = 1;
XSETFASTINT (BVAR (&buffer_local_flags, mode_line_format), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, abbrev_mode), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, overwrite_mode), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, case_fold_search), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, auto_fill_function), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, selective_display), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, selective_display_ellipses), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, tab_width), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, truncate_lines), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, word_wrap), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, ctl_arrow), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, fill_column), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, left_margin), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, abbrev_table), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, display_table), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, syntax_table), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, cache_long_scans), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, category_table), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, bidi_display_reordering), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, bidi_paragraph_direction), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, buffer_file_coding_system), idx);
/* Make this one a permanent local. */
buffer_permanent_local_flags[idx++] = 1;
XSETFASTINT (BVAR (&buffer_local_flags, left_margin_cols), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, right_margin_cols), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, left_fringe_width), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, right_fringe_width), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, fringes_outside_margins), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, scroll_bar_width), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, scroll_bar_height), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, vertical_scroll_bar_type), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, horizontal_scroll_bar_type), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, indicate_empty_lines), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, indicate_buffer_boundaries), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, fringe_indicator_alist), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, fringe_cursor_alist), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, scroll_up_aggressively), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, scroll_down_aggressively), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, header_line_format), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, cursor_type), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, extra_line_spacing), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, cursor_in_non_selected_windows), idx); ++idx;
/* Need more room? */
if (idx >= MAX_PER_BUFFER_VARS)
emacs_abort ();
last_per_buffer_idx = idx;
/* Make sure all markable slots in buffer_defaults
are initialized reasonably, so mark_buffer won't choke. */
reset_buffer (&buffer_defaults);
@ -5113,79 +5200,9 @@ init_buffer_once (void)
to say that it has its own local value for the slot.
The local flag bits are in the local_var_flags slot of the buffer. */
/* Nothing can work if this isn't true */
/* Nothing can work if this isn't true. */
{ verify (sizeof (EMACS_INT) == word_size); }
/* 0 means not a lisp var, -1 means always local, else mask */
memset (&buffer_local_flags, 0, sizeof buffer_local_flags);
bset_filename (&buffer_local_flags, make_number (-1));
bset_directory (&buffer_local_flags, make_number (-1));
bset_backed_up (&buffer_local_flags, make_number (-1));
bset_save_length (&buffer_local_flags, make_number (-1));
bset_auto_save_file_name (&buffer_local_flags, make_number (-1));
bset_read_only (&buffer_local_flags, make_number (-1));
bset_major_mode (&buffer_local_flags, make_number (-1));
bset_mode_name (&buffer_local_flags, make_number (-1));
bset_undo_list (&buffer_local_flags, make_number (-1));
bset_mark_active (&buffer_local_flags, make_number (-1));
bset_point_before_scroll (&buffer_local_flags, make_number (-1));
bset_file_truename (&buffer_local_flags, make_number (-1));
bset_invisibility_spec (&buffer_local_flags, make_number (-1));
bset_file_format (&buffer_local_flags, make_number (-1));
bset_auto_save_file_format (&buffer_local_flags, make_number (-1));
bset_display_count (&buffer_local_flags, make_number (-1));
bset_display_time (&buffer_local_flags, make_number (-1));
bset_enable_multibyte_characters (&buffer_local_flags, make_number (-1));
idx = 1;
XSETFASTINT (BVAR (&buffer_local_flags, mode_line_format), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, abbrev_mode), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, overwrite_mode), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, case_fold_search), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, auto_fill_function), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, selective_display), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, selective_display_ellipses), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, tab_width), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, truncate_lines), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, word_wrap), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, ctl_arrow), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, fill_column), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, left_margin), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, abbrev_table), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, display_table), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, syntax_table), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, cache_long_scans), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, category_table), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, bidi_display_reordering), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, bidi_paragraph_direction), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, buffer_file_coding_system), idx);
/* Make this one a permanent local. */
buffer_permanent_local_flags[idx++] = 1;
XSETFASTINT (BVAR (&buffer_local_flags, left_margin_cols), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, right_margin_cols), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, left_fringe_width), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, right_fringe_width), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, fringes_outside_margins), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, scroll_bar_width), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, scroll_bar_height), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, vertical_scroll_bar_type), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, horizontal_scroll_bar_type), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, indicate_empty_lines), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, indicate_buffer_boundaries), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, fringe_indicator_alist), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, fringe_cursor_alist), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, scroll_up_aggressively), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, scroll_down_aggressively), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, header_line_format), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, cursor_type), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, extra_line_spacing), idx); ++idx;
XSETFASTINT (BVAR (&buffer_local_flags, cursor_in_non_selected_windows), idx); ++idx;
/* Need more room? */
if (idx >= MAX_PER_BUFFER_VARS)
emacs_abort ();
last_per_buffer_idx = idx;
Vbuffer_alist = Qnil;
current_buffer = 0;
all_buffers = 0;
@ -5202,7 +5219,7 @@ init_buffer_once (void)
DEFSYM (Qkill_buffer_hook, "kill-buffer-hook");
Fput (Qkill_buffer_hook, Qpermanent_local, Qt);
/* super-magic invisible buffer */
/* Super-magic invisible buffer. */
Vprin1_to_string_buffer = Fget_buffer_create (build_pure_c_string (" prin1"));
Vbuffer_alist = Qnil;