patch 9.0.0327: items() does not work on a listv9.0.0327

Problem:    items() does not work on a list. (Sergey Vlasov)
Solution:   Make items() work on a list. (closes #11013)

2 files changed, 16 insertions, 1 deletions

diff --git a/src/testdir/test_listdict.vim b/src/testdir/test_listdict.vim
index bba4e3e1e1..c87d701a36 100644
--- a/src/testdir/test_listdict.vim
+++ b/src/testdir/test_listdict.vim
@@ -198,6 +198,17 @@ func Test_list_range_assign()
   call v9.CheckDefAndScriptFailure(lines, 'E1012:', 2)
 endfunc
 
+func Test_list_items()
+  let r = []
+  let l = ['a', 'b', 'c']
+  for [idx, val] in items(l)
+    call extend(r, [[idx, val]])
+  endfor
+  call assert_equal([[0, 'a'], [1, 'b'], [2, 'c']], r)
+
+  call assert_fails('call items(3)', 'E1227:')
+endfunc
+
 " Test removing items in list
 func Test_list_func_remove()
   let lines =<< trim END
diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
index d68ddce7aa..5eb64adefa 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -2244,10 +2244,14 @@ def Test_islocked()
 enddef
 
 def Test_items()
-  v9.CheckDefFailure(['[]->items()'], 'E1013: Argument 1: type mismatch, expected dict<any> but got list<unknown>')
+  v9.CheckDefFailure(['"x"->items()'], 'E1013: Argument 1: type mismatch, expected list<any> but got string')
   assert_equal([['a', 10], ['b', 20]], {'a': 10, 'b': 20}->items())
   assert_equal([], {}->items())
   assert_equal(['x', 'x'], {'a': 10, 'b': 20}->items()->map((_, _) => 'x'))
+
+  assert_equal([[0, 'a'], [1, 'b']], ['a', 'b']->items())
+  assert_equal([], []->items())
+  assert_equal([], test_null_list()->items())
 enddef
 
 def Test_job_getchannel()