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Don't invoke overlay modification hooks in wrong buffer

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* src/buffer.c (report_overlay_modification): When called with
AFTER non-zero, don't invoke overlay modification hooks if the
buffer recorded in last_overlay_modification_hooks is different
from the current buffer.  (Bug#21824)
This commit is contained in:
Eli Zaretskii 2015-11-06 17:19:39 +02:00
parent 3172a6ac39
commit 564d811725
1 changed files with 17 additions and 0 deletions
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17
src/buffer.c
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@ -4481,6 +4481,23 @@ report_overlay_modification (Lisp_Object start, Lisp_Object end, bool after,
Lisp_Object *copy;
ptrdiff_t i;
if (size)
{
Lisp_Object ovl
= XVECTOR (last_overlay_modification_hooks)->contents[1];
/* If the buffer of the first overlay in the array doesn't
match the current buffer, then these modification hooks
should not be run in this buffer. This could happen when
some code calls some insdel functions, such as del_range_1,
with the PREPARE argument false -- in that case this
function is never called to record the overlay modification
hook functions in the last_overlay_modification_hooks
array, so anything we find there is not ours. */
if (XMARKER (OVERLAY_START (ovl))->buffer != current_buffer)
return;
}
USE_SAFE_ALLOCA;
SAFE_ALLOCA_LISP (copy, size);
memcpy (copy, XVECTOR (last_overlay_modification_hooks)->contents,