From: Pip Cet <pipcet@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 36190@debbugs.gnu.org
Subject: bug#36190: 27.0.50; `put-text-property' etc. with buffer argument calls current buffer's `after-change-functions'
Date: Fri, 14 Jun 2019 11:14:53 +0000 [thread overview]
Message-ID: <CAOqdjBdK4rBW389v=rDRrYi3+d8Ke3NuqjyB6xQRnB9vVM_yZw@mail.gmail.com> (raw)
In-Reply-To: <83k1doy5om.fsf@gnu.org>
[-- Attachment #1: Type: text/plain, Size: 1588 bytes --]
On Fri, Jun 14, 2019 at 7:41 AM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > From: Pip Cet <pipcet@gmail.com>
> > Date: Thu, 13 Jun 2019 21:37:40 +0000
> > Cc: 36190@debbugs.gnu.org
> >
> > +/* Signal a change immediately after it happens.
> > + BUFFER is the buffer in which the change happened.
> > + CHARPOS is the character position of the start of the changed text.
> > + LENDEL is the number of characters of the text before the change.
> > + (Not the whole buffer; just the part that was changed.)
> > + LENINS is the number of characters in that part of the text
> > + after the change. */
>
> I would just say "Like signal_after_change, but ..." and describe only
> the BUFFER argument.
>
> > +void
> > +signal_after_change_in_buffer (struct buffer *buffer, ptrdiff_t charpos, ptrdiff_t lendel, ptrdiff_t lenins)
> > +{
> > + ptrdiff_t count = SPECPDL_INDEX ();
> > +
> > + record_unwind_current_buffer ();
> > + set_buffer_internal (buffer);
> > + signal_after_change (charpos, lendel, lenins);
> > + unbind_to (count, Qnil);
> > +}
>
> I still think we should explicitly detect the current_buffer case here
> and if so, avoid the calls to everything else except
> signal_after_change itself.
>
> But I indeed like this patch better, although the concerns over the
> performance hit are still present. Thanks.
Okay, I fixed those two issues. As for the performance problem, should
we amend the documentation to state that if many changes are made,
it's better to use `with-current-buffer' instead of repeatedly calling
put-text-property with a buffer argument?
[-- Attachment #2: 0001-Switch-to-correct-buffer-in-put-text-property-etc.patch --]
[-- Type: text/x-patch, Size: 7946 bytes --]
From b23ebe451664b0f50a02fb2e4ee5a41877dfe32d Mon Sep 17 00:00:00 2001
From: Pip Cet <pipcet@gmail.com>
Date: Fri, 14 Jun 2019 11:05:31 +0000
Subject: [PATCH] Switch to correct buffer in put-text-property etc.
* src/textprop.c (add_text_properties_1, set_text_properties)
(Fremove_text_properties, Fremove_list_of_text_properties):
use `signal_after_change_in_buffer'.
* src/insdel.c (signal_after_change_in_buffer): New function.
---
src/insdel.c | 16 +++++++++++
src/lisp.h | 1 +
src/textprop.c | 73 +++++++++++++++++++++++++++-----------------------
3 files changed, 57 insertions(+), 33 deletions(-)
diff --git a/src/insdel.c b/src/insdel.c
index 85fffd8fd1..49aca94e03 100644
--- a/src/insdel.c
+++ b/src/insdel.c
@@ -2253,6 +2253,22 @@ signal_after_change (ptrdiff_t charpos, ptrdiff_t lendel, ptrdiff_t lenins)
unbind_to (count, Qnil);
}
+/* Like `signal_after_change', but switch to BUFFER first. */
+
+void
+signal_after_change_in_buffer (struct buffer *buffer, ptrdiff_t charpos, ptrdiff_t lendel, ptrdiff_t lenins)
+{
+ ptrdiff_t count = SPECPDL_INDEX ();
+
+ if (buffer != current_buffer)
+ {
+ record_unwind_current_buffer ();
+ set_buffer_internal (buffer);
+ }
+ signal_after_change (charpos, lendel, lenins);
+ unbind_to (count, Qnil);
+}
+
static void
Fcombine_after_change_execute_1 (Lisp_Object val)
{
diff --git a/src/lisp.h b/src/lisp.h
index 77fc22d118..4e05c9555b 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -3686,6 +3686,7 @@ #define CONS_TO_INTEGER(cons, type, var) \
extern void prepare_to_modify_buffer_1 (ptrdiff_t, ptrdiff_t, ptrdiff_t *);
extern void invalidate_buffer_caches (struct buffer *, ptrdiff_t, ptrdiff_t);
extern void signal_after_change (ptrdiff_t, ptrdiff_t, ptrdiff_t);
+extern void signal_after_change_in_buffer (struct buffer *, ptrdiff_t, ptrdiff_t, ptrdiff_t);
extern void adjust_after_insert (ptrdiff_t, ptrdiff_t, ptrdiff_t,
ptrdiff_t, ptrdiff_t);
extern void adjust_markers_for_delete (ptrdiff_t, ptrdiff_t,
diff --git a/src/textprop.c b/src/textprop.c
index ae42c44185..1781440b10 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -1215,8 +1215,8 @@ add_text_properties_1 (Lisp_Object start, Lisp_Object end,
if (interval_has_all_properties (properties, i))
{
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object), XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
eassert (modified);
return Qt;
@@ -1226,8 +1226,8 @@ add_text_properties_1 (Lisp_Object start, Lisp_Object end,
{
add_properties (properties, i, object, set_type);
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object), XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
@@ -1237,8 +1237,8 @@ add_text_properties_1 (Lisp_Object start, Lisp_Object end,
copy_properties (unchanged, i);
add_properties (properties, i, object, set_type);
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object), XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
@@ -1398,8 +1398,9 @@ set_text_properties (Lisp_Object start, Lisp_Object end, Lisp_Object properties,
set_text_properties_1 (start, end, properties, object, i);
if (BUFFERP (object) && !NILP (coherent_change_p))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object),
+ XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
@@ -1565,8 +1566,9 @@ DEFUN ("remove-text-properties", Fremove_text_properties,
{
eassert (modified);
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object),
+ XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
@@ -1574,8 +1576,9 @@ DEFUN ("remove-text-properties", Fremove_text_properties,
{
remove_properties (properties, Qnil, i, object);
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object),
+ XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
@@ -1585,8 +1588,9 @@ DEFUN ("remove-text-properties", Fremove_text_properties,
copy_properties (unchanged, i);
remove_properties (properties, Qnil, i, object);
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object),
+ XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
@@ -1663,9 +1667,10 @@ DEFUN ("remove-list-of-text-properties", Fremove_list_of_text_properties,
if (modified)
{
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object),
+ XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
else
@@ -1677,8 +1682,9 @@ DEFUN ("remove-list-of-text-properties", Fremove_list_of_text_properties,
modify_text_properties (object, start, end);
remove_properties (Qnil, properties, i, object);
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object),
+ XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
else
@@ -1690,8 +1696,9 @@ DEFUN ("remove-list-of-text-properties", Fremove_list_of_text_properties,
modify_text_properties (object, start, end);
remove_properties (Qnil, properties, i, object);
if (BUFFERP (object))
- signal_after_change (XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
+ signal_after_change_in_buffer (XBUFFER (object),
+ XFIXNUM (start), XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
return Qt;
}
}
@@ -1705,18 +1712,18 @@ DEFUN ("remove-list-of-text-properties", Fremove_list_of_text_properties,
len -= LENGTH (i);
i = next_interval (i);
if (!i)
- {
- if (modified)
- {
- if (BUFFERP (object))
- signal_after_change (XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start),
- XFIXNUM (end) - XFIXNUM (start));
- return Qt;
- }
- else
- return Qnil;
- }
+ {
+ if (modified)
+ {
+ if (BUFFERP (object))
+ signal_after_change_in_buffer (XBUFFER (object), XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start),
+ XFIXNUM (end) - XFIXNUM (start));
+ return Qt;
+ }
+ else
+ return Qnil;
+ }
}
}
\f
--
2.20.1
next prev parent reply other threads:[~2019-06-14 11:14 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 13:48 bug#36190: 27.0.50; `put-text-property' etc. with buffer argument calls current buffer's `after-change-functions' Pip Cet
2019-06-13 16:36 ` Eli Zaretskii
2019-06-13 18:48 ` Pip Cet
2019-06-13 19:05 ` Eli Zaretskii
2019-06-13 19:27 ` Eli Zaretskii
2019-06-13 19:42 ` Pip Cet
2019-06-13 20:01 ` Eli Zaretskii
2019-06-13 20:57 ` Pip Cet
2019-06-13 21:37 ` Pip Cet
2019-06-14 7:41 ` Eli Zaretskii
2019-06-14 11:14 ` Pip Cet [this message]
2019-06-14 12:10 ` Eli Zaretskii
2019-06-15 15:14 ` Pip Cet
2019-06-15 15:23 ` Eli Zaretskii
2019-06-15 19:27 ` Pip Cet
2019-07-06 8:08 ` Eli Zaretskii
2019-07-06 15:27 ` Pip Cet
2019-07-06 16:22 ` Eli Zaretskii
2019-06-14 7:36 ` Eli Zaretskii
2019-06-17 11:38 ` Pip Cet
2019-06-17 15:59 ` Eli Zaretskii
2019-06-18 17:14 ` Pip Cet
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