# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1650478503 -7200
# Node ID 65ff2409cba466833e3db76666d6552be4b94a6b
# Parent  d89bd590e2b3021b9f3937421468d430be887df0
patch 8.2.4797: getwininfo() may get oudated values

Commit: https://github.com/vim/vim/commit/8530b41fd3872c9a1349b083470d565677948518
Author: LemonBoy <thatlemon@gmail.com>
Date:   Wed Apr 20 19:00:36 2022 +0100

    patch 8.2.4797: getwininfo() may get oudated values

    Problem:    getwininfo() may get oudated values.
    Solution:   Make sure w_botline is up-to-date. (closes https://github.com/vim/vim/issues/10226)

diff --git a/src/evalwindow.c b/src/evalwindow.c
--- a/src/evalwindow.c
+++ b/src/evalwindow.c
@@ -395,6 +395,9 @@ get_win_info(win_T *wp, short tpnr, shor
     if (dict == NULL)
 	return NULL;
 
+    // make sure w_botline is valid
+    validate_botline_win(wp);
+
     dict_add_number(dict, "tabnr", tpnr);
     dict_add_number(dict, "winnr", winnr);
     dict_add_number(dict, "winid", wp->w_id);
diff --git a/src/testdir/test_bufwintabinfo.vim b/src/testdir/test_bufwintabinfo.vim
--- a/src/testdir/test_bufwintabinfo.vim
+++ b/src/testdir/test_bufwintabinfo.vim
@@ -172,4 +172,26 @@ func Test_getbufinfo_lines()
   bw!
 endfunc
 
+func Test_getwininfo_au()
+  enew
+  call setline(1, range(1, 16))
+
+  let g:info = #{}
+  augroup T1
+    au!
+    au WinEnter * let g:info = getwininfo(win_getid())[0]
+  augroup END
+
+  4split
+  " Check that calling getwininfo() from WinEnter returns fresh values for
+  " topline and botline.
+  call assert_equal(1, g:info.topline)
+  call assert_equal(4, g:info.botline)
+  close
+
+  unlet g:info
+  augroup! T1
+  bwipe!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4797,
+/**/
     4796,
 /**/
     4795,