vim-patch:9.0.2044: Vim9: exceptions confuse defered functions

Problem:  Vim9: exceptions confuse defered functions
Solution: save and restore exception state when calling defered
          functions

closes: vim/vim#13364
closes: vim/vim#13372

https://github.com/vim/vim/commit/0672595fd50e9ae668676a40e28ebf66d7f52392

Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/test/old/testdir/test_user_func.vim b/test/old/testdir/test_user_func.vim
index dc36ab98cb..ee1fd4ec5b 100644
--- a/test/old/testdir/test_user_func.vim
+++ b/test/old/testdir/test_user_func.vim
@@ -793,5 +793,31 @@ func Test_defer_wrong_arguments()
   call v9.CheckScriptFailure(lines, 'E1013: Argument 1: type mismatch, expected string but got number')
 endfunc
 
+" Test for calling a deferred function after an exception
+func Test_defer_after_exception()
+  let g:callTrace = []
+  func Defer()
+    let g:callTrace += ['a']
+    let g:callTrace += ['b']
+    let g:callTrace += ['c']
+    let g:callTrace += ['d']
+  endfunc
+
+  func Foo()
+    defer Defer()
+    throw "TestException"
+  endfunc
+
+  try
+    call Foo()
+  catch /TestException/
+    let g:callTrace += ['e']
+  endtry
+  call assert_equal(['a', 'b', 'c', 'd', 'e'], g:callTrace)
+
+  delfunc Defer
+  delfunc Foo
+  unlet g:callTrace
+endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab