patch 8.1.1681: insert stray "{" when listener gets buffer line
Problem: Insert stray "{" when listener gets buffer line. (Paul Jolly)
Solution: Flush the cached line after invoking listeners. (closes #4455)
diff --git a/src/memline.c b/src/memline.c
index 0e3bdb8..b9de06e 100644
--- a/src/memline.c
+++ b/src/memline.c
@@ -2836,8 +2836,10 @@
#ifdef FEAT_EVAL
// When inserting above recorded changes: flush the changes before changing
- // the text.
+ // the text. Then flush the cached line, it may become invalid.
may_invoke_listeners(buf, lnum + 1, lnum + 1, 1);
+ if (curbuf->b_ml.ml_line_lnum != 0)
+ ml_flush_line(curbuf);
#endif
#ifdef FEAT_TEXT_PROP
diff --git a/src/testdir/test_listener.vim b/src/testdir/test_listener.vim
index ed501c2..6a68ae6 100644
--- a/src/testdir/test_listener.vim
+++ b/src/testdir/test_listener.vim
@@ -242,3 +242,29 @@
delfunc MyListener
bwipe!
endfunc
+
+" This verifies the fix for issue #4455
+func Test_listener_caches_buffer_line()
+ new
+ inoremap <silent> <CR> <CR><Esc>O
+
+ function EchoChanges(bufnr, start, end, added, changes)
+ for l:change in a:changes
+ let text = getbufline(a:bufnr, l:change.lnum, l:change.end-1+l:change.added)
+ endfor
+ endfunction
+ let lid = listener_add("EchoChanges")
+ set autoindent
+ set cindent
+
+ call setline(1, ["{", "\tif true {}", "}"])
+ exe "normal /{}\nl"
+ call feedkeys("i\r\e", 'xt')
+ call assert_equal(["{", "\tif true {", "", "\t}", "}"], getline(1, 5))
+
+ bwipe!
+ delfunc EchoChanges
+ call listener_remove(lid)
+ iunmap <CR>
+ set nocindent
+endfunc
diff --git a/src/version.c b/src/version.c
index eaa8047..fff8d22 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 1681,
+/**/
1680,
/**/
1679,