Cleanup basic buffer management.

* buffer.h (struct buffer): Change layout to use generic vector
marking code.  Fix some comments.  Change type of 'clip_changed'
to bitfield.  Remove unused #ifndef old.
(FIRST_FIELD_PER_BUFFER, LAST_FIELD_PER_BUFFER): Remove.
(GET_OVERLAYS_AT): Fix indentation.
(for_each_per_buffer_object_at): New macro.
* buffer.c (clone_per_buffer_values, reset_buffer_local_variables)
(Fbuffer_local_variables): Use it.
(init_buffer_once, syms_of_buffer): Remove unused #ifndef old.
* alloc.c (allocate_buffer): Adjust to match new layout of
struct buffer.  Fix comment.
(mark_overlay): New function.
(mark_buffer): Use it.  Use mark_vectorlike to mark normal
Lisp area of struct buffer.
(mark_object): Use it.  Adjust marking of misc objects
and related comments.

1 files changed, 20 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 58e82c27dc7..6eb1a07faf2 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,23 @@
+2012-07-03  Dmitry Antipov  <dmantipov@yandex.ru>
+
+        Cleanup basic buffer management.
+        * buffer.h (struct buffer): Change layout to use generic vector
+        marking code.  Fix some comments.  Change type of 'clip_changed'
+        to bitfield.  Remove unused #ifndef old.
+        (FIRST_FIELD_PER_BUFFER, LAST_FIELD_PER_BUFFER): Remove.
+        (GET_OVERLAYS_AT): Fix indentation.
+        (for_each_per_buffer_object_at): New macro.
+        * buffer.c (clone_per_buffer_values, reset_buffer_local_variables)
+        (Fbuffer_local_variables): Use it.
+        (init_buffer_once, syms_of_buffer): Remove unused #ifndef old.
+        * alloc.c (allocate_buffer): Adjust to match new layout of
+        struct buffer.  Fix comment.
+        (mark_overlay): New function.
+        (mark_buffer): Use it.  Use mark_vectorlike to mark normal
+        Lisp area of struct buffer.
+        (mark_object): Use it.  Adjust marking of misc objects
+        and related comments.
+
 2012-07-02  Paul Eggert  <eggert@cs.ucla.edu>
 
         * alloc.c (mark_object): Remove "#ifdef GC_CHECK_MARKED_OBJECTS"