patch 8.2.4293: Vim9: when copying a list it gets type list<any>
Problem: Vim9: when copying a list it gets type list<any> even when the
original list did not have a type.
Solution: Only set the type when the original list has a type. (closes #9692)
diff --git a/src/list.c b/src/list.c
index 86c1679..3a6ea97 100644
--- a/src/list.c
+++ b/src/list.c
@@ -1216,7 +1216,11 @@
copy = list_alloc();
if (copy != NULL)
{
- copy->lv_type = alloc_type(top || deep ? &t_list_any: orig->lv_type);
+ if (orig->lv_type == NULL)
+ copy->lv_type = NULL;
+ else
+ copy->lv_type = alloc_type(top || deep
+ ? &t_list_any: orig->lv_type);
if (copyID != 0)
{
// Do this before adding the items, because one of the items may
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index c6466d3..a4e3e9e 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -1495,6 +1495,9 @@
# result of glob() is "any", runtime type check
var sl: list<string> = glob('*.txt', false, true) + ['']
+
+ var lln: list<list<number>> = [[1] + [2]]
+ assert_equal([[1, 2]], lln)
END
v9.CheckDefAndScriptSuccess(lines)
enddef
diff --git a/src/version.c b/src/version.c
index 0419978..5140eb9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 4293,
+/**/
4292,
/**/
4291,