patch 8.2.2186: Vim9: error when using 'opfunc'
Problem: Vim9: error when using 'opfunc'.
Solution: Do not expect a return value from 'opfunc'. (closes #7510)
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index 4a0c7a9..fcfe41f 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -1976,5 +1976,20 @@
CheckScriptSuccess(lines)
enddef
+def Test_opfunc()
+ nnoremap <F3> <cmd>set opfunc=Opfunc<cr>g@
+ def g:Opfunc(_: any): string
+ setline(1, 'ASDF')
+ return ''
+ enddef
+ new
+ setline(1, 'asdf')
+ feedkeys("\<F3>$", 'x')
+ assert_equal('ASDF', getline(1))
+
+ bwipe!
+ nunmap <F3>
+enddef
+
" vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker