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| author | Richard M. Stallman <rms@gnu.org> | 1994-05-24 21:16:23 +0000 |
|---|---|---|
| committer | Richard M. Stallman <rms@gnu.org> | 1994-05-24 21:16:23 +0000 |
| commit | 89a3e5e228b316dafc81a0dd823492e11533c5dd (patch) | |
| tree | 678a6738032ddb2aef2554151b678f1d973e95c0 /src/buffer.c | |
| parent | d0fa874a4dff052bcb8c74c4efd26d31229c31e4 (diff) | |
| download | emacs-89a3e5e228b316dafc81a0dd823492e11533c5dd.tar.gz | |
(verify_overlay_modification): GCPRO tail and overlay.
Avoid copying tail twice.
Diffstat (limited to 'src/buffer.c')
| -rw-r--r-- | src/buffer.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/src/buffer.c b/src/buffer.c index 1293b1590e9..8ebfe98388c 100644 --- a/src/buffer.c +++ b/src/buffer.c @@ -2134,7 +2134,14 @@ verify_overlay_modification (start, end) { Lisp_Object prop, overlay, tail; int insertion = EQ (start, end); + int tail_copied; + struct gcpro gcpro1, gcpro2; + + overlay = Qnil; + tail = Qnil; + GCPRO2 (overlay, tail); + tail_copied = 0; for (tail = current_buffer->overlays_before; CONSP (tail); tail = XCONS (tail)->cdr) @@ -2156,7 +2163,9 @@ verify_overlay_modification (start, end) if (!NILP (prop)) { /* Copy TAIL in case the hook recenters the overlay lists. */ - tail = Fcopy_sequence (tail); + if (!tail_copied) + tail = Fcopy_sequence (tail); + tail_copied = 1; call_overlay_mod_hooks (prop, overlay, start, end); } } @@ -2165,7 +2174,9 @@ verify_overlay_modification (start, end) prop = Foverlay_get (overlay, Qinsert_behind_hooks); if (!NILP (prop)) { - tail = Fcopy_sequence (tail); + if (!tail_copied) + tail = Fcopy_sequence (tail); + tail_copied = 1; call_overlay_mod_hooks (prop, overlay, start, end); } } @@ -2176,12 +2187,15 @@ verify_overlay_modification (start, end) prop = Foverlay_get (overlay, Qmodification_hooks); if (!NILP (prop)) { - tail = Fcopy_sequence (tail); + if (!tail_copied) + tail = Fcopy_sequence (tail); + tail_copied = 1; call_overlay_mod_hooks (prop, overlay, start, end); } } } + tail_copied = 0; for (tail = current_buffer->overlays_after; CONSP (tail); tail = XCONS (tail)->cdr) @@ -2202,7 +2216,9 @@ verify_overlay_modification (start, end) prop = Foverlay_get (overlay, Qinsert_in_front_hooks); if (!NILP (prop)) { - tail = Fcopy_sequence (tail); + if (!tail_copied) + tail = Fcopy_sequence (tail); + tail_copied = 1; call_overlay_mod_hooks (prop, overlay, start, end); } } @@ -2211,7 +2227,9 @@ verify_overlay_modification (start, end) prop = Foverlay_get (overlay, Qinsert_behind_hooks); if (!NILP (prop)) { - tail = Fcopy_sequence (tail); + if (!tail_copied) + tail = Fcopy_sequence (tail); + tail_copied = 1; call_overlay_mod_hooks (prop, overlay, start, end); } } @@ -2222,11 +2240,15 @@ verify_overlay_modification (start, end) prop = Foverlay_get (overlay, Qmodification_hooks); if (!NILP (prop)) { - tail = Fcopy_sequence (tail); + if (!tail_copied) + tail = Fcopy_sequence (tail); + tail_copied = 1; call_overlay_mod_hooks (prop, overlay, start, end); } } } + + UNGCPRO; } static void |