(overlay_strings, recenter_overlay_lists): Fix typo in eassert in last commit.

(unchain_overlay): New function.
(add_overlay_mod_hooklist): Use AREF.
(copy_overlays, reset_buffer, overlays_at, overlays_in)
(overlay_touches_p, overlay_strings, recenter_overlay_lists)
(fix_overlays_in_range, fix_overlays_before, Fmake_overlay)
(Fmove_overlay, Fdelete_overlay, Foverlay_lists)
(report_overlay_modification, evaporate_overlays, init_buffer_once):
Adjust to new type of overlays_(before|after).

1 files changed, 37 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index c23a1cebe41..dd9d9cecb26 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,40 @@
+2003-07-09  Stefan Monnier  <monnier@cs.yale.edu>
+
+        Change overlays_after and overlays_before so the overlays themselves
+        are linked into lists, rather than using cons cells.  After all each
+        Lisp_Misc already occupies 5 words, so we can add a `next' field to
+        Lisp_Overlay for free and save up one cons cell per overlay (not
+        to mention one indirection when traversing the list of overlay).
+
+        * lisp.h (struct Lisp_Overlay): New field `next'.
+
+        * buffer.h (struct buffer): Change overlays_before and overlays_after
+        from Lisp lists of overlays to pointers to overlays.
+
+        * buffer.c (overlay_strings, recenter_overlay_lists):
+        Fix typo in eassert in last commit.
+        (unchain_overlay): New function.
+        (add_overlay_mod_hooklist): Use AREF.
+        (copy_overlays, reset_buffer, overlays_at, overlays_in)
+        (overlay_touches_p, overlay_strings, recenter_overlay_lists)
+        (fix_overlays_in_range, fix_overlays_before, Fmake_overlay)
+        (Fmove_overlay, Fdelete_overlay, Foverlay_lists)
+        (report_overlay_modification, evaporate_overlays, init_buffer_once):
+        Adjust to new type of overlays_(before|after).
+
+        * alloc.c (mark_object): Mark the new `next' field of overlays.
+        (mark_buffer): Manually mark the overlays_(after|before) fields.
+
+        * coding.c (run_pre_post_conversion_on_str):
+        * editfns.c (overlays_around):
+        * xdisp.c (load_overlay_strings):
+        * fileio.c (Finsert_file_contents):
+        * indent.c (current_column):
+        * insdel.c (signal_before_change, signal_after_change):
+        * intervals.c (set_point_both):
+        * print.c (temp_output_buffer_setup): Use new type for
+        overlays_(before|after).
+
 2003-07-08  Stefan Monnier  <monnier@cs.yale.edu>
 
         * buffer.c (report_overlay_modification): Don't run hooks while