Patch 8.2.2340

[Bram Moolenaar]

Patch 8.2.2340
Problem: win_execute() unexpectedly returns number zero when failing.
Solution: Return an empty string. (closes #7665)
Files: src/evalwindow.c, src/testdir/test_vim9_builtin.vim,
src/testdir/test_execute_func.vim


*** ../vim-8.2.2339/src/evalwindow.c 2020-12-29 20:25:16.470694750 +0100
--- src/evalwindow.c 2021-01-12 22:02:07.880989471 +0100
***************
*** 673,678 ****
--- 673,682 ----
win_T *save_curwin;
tabpage_T *save_curtab;

+ // Return an empty string if something fails.
+ rettv->v_type = VAR_STRING;
+ rettv->vval.v_string = NULL;
+
if (wp != NULL && tp != NULL)
{
pos_T curpos = wp->w_cursor;
*** ../vim-8.2.2339/src/testdir/test_vim9_builtin.vim 2021-01-12 21:48:55.879131998 +0100
--- src/testdir/test_vim9_builtin.vim 2021-01-12 22:06:10.068317541 +0100
***************
*** 800,805 ****
--- 800,810 ----
timer_stop(id)
enddef

+ def Test_win_execute()
+ assert_equal("\n" .. winnr(), win_execute(win_getid(), 'echo winnr()'))
+ assert_equal('', win_execute(342343, 'echo winnr()'))
+ enddef
+
def Test_win_splitmove()
split
win_splitmove(1, 2, {vertical: true, rightbelow: true})
*** ../vim-8.2.2339/src/testdir/test_execute_func.vim 2020-04-24 22:47:26.771359294 +0200
--- src/testdir/test_execute_func.vim 2021-01-12 22:07:34.536082364 +0100
***************
*** 89,94 ****
--- 89,96 ----
call win_gotoid(thiswin)
let line = win_execute(otherwin, 'echo getline(1)')
call assert_match('the new window', line)
+ let line = win_execute(134343, 'echo getline(1)')
+ call assert_equal('', line)

if has('popupwin')
let popupwin = popup_create('the popup win', {'line': 2, 'col': 3})
*** ../vim-8.2.2339/src/version.c 2021-01-12 21:48:55.879131998 +0100
--- src/version.c 2021-01-12 22:01:18.205126696 +0100
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 2340,
/**/

--
Birthdays are healthy. The more you have them, the longer you live.

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
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\\\ an exciting new programming language -- http://www.Zimbu.org ///
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