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patch 8.1.1486: a listener change is merged even when it adds a line

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Problem:    A listener change is merged even when it adds a line. (Paul Jolly)
Solution:   Do not merge a change that adds or removes a line. (closes #4490)
This commit is contained in:
Bram Moolenaar
2019-06-06 22:50:35 +02:00
parent 773a97c254
commit 1253704591
3 changed files with 12 additions and 7 deletions
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1
src/change.c
View File

@@ -186,6 +186,7 @@ check_recorded_changes(
|| (prev_lnume >= lnum && xtra != 0))
{
if (li->li_next == NULL && lnum == prev_lnum
&& xtra == 0
&& col + 1 == (colnr_T)dict_get_number(
li->li_tv.vval.v_dict, (char_u *)"col"))
{

16
src/testdir/test_listener.vim
View File

@@ -28,9 +28,10 @@ func Test_listening()
set undolevels& " start new undo block
call append(2, 'two two')
undo
call assert_equal([{'lnum': 3, 'end': 3, 'col': 1, 'added': 1}], s:list)
redraw
" the two changes get merged
call assert_equal([{'lnum': 3, 'end': 4, 'col': 1, 'added': 0}], s:list)
" the two changes are not merged
call assert_equal([{'lnum': 3, 'end': 4, 'col': 1, 'added': -1}], s:list)
1
" Two listeners, both get called. Also check column.
@@ -65,15 +66,16 @@ func Test_listening()
call assert_equal([{'lnum': 3, 'end': 3, 'col': 1, 'added': 1},
\ {'lnum': 1, 'end': 2, 'col': 1, 'added': 0}], s:list)
" an insert just above a previous change that was the last one gets merged
" an insert just above a previous change that was the last one does not get
" merged
call setline(1, ['one one', 'two'])
call listener_flush()
let s:list = []
call setline(2, 'something')
call append(1, 'two two')
call assert_equal([], s:list)
call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': 0}], s:list)
call listener_flush()
call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': 1}], s:list)
call assert_equal([{'lnum': 2, 'end': 2, 'col': 1, 'added': 1}], s:list)
" an insert above a previous change causes a flush
call setline(1, ['one one', 'two'])
@@ -86,13 +88,13 @@ func Test_listening()
call assert_equal([{'lnum': 1, 'end': 1, 'col': 1, 'added': 1}], s:list)
call assert_equal('two two', s:text)
" a delete at a previous change that was the last one gets merged
" a delete at a previous change that was the last one does not get merged
call setline(1, ['one one', 'two'])
call listener_flush()
let s:list = []
call setline(2, 'something')
2del
call assert_equal([], s:list)
call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': 0}], s:list)
call listener_flush()
call assert_equal([{'lnum': 2, 'end': 3, 'col': 1, 'added': -1}], s:list)

2
src/version.c
View File

@@ -767,6 +767,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1486,
/**/
1485,
/**/