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patch 8.2.1291: Vim9: type of varargs items is not checked

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Problem:    Vim9: type of varargs items is not checked.
Solution:   Check the list item types. (closes #6523)
This commit is contained in:
Bram Moolenaar
2020-07-25 16:33:02 +02:00
parent 925e9fd633
commit 24aa48b7a2
3 changed files with 70 additions and 2 deletions
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20
src/vim9execute.c
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@@ -755,9 +755,27 @@ call_def_function(
argc -= vararg_count;
if (exe_newlist(vararg_count, &ectx) == FAIL)
goto failed_early;
// Check the type of the list items.
tv = STACK_TV_BOT(-1);
if (ufunc->uf_va_type != NULL
&& ufunc->uf_va_type->tt_member != &t_any
&& tv->vval.v_list != NULL)
{
type_T *expected = ufunc->uf_va_type->tt_member;
listitem_T *li = tv->vval.v_list->lv_first;
for (idx = 0; idx < vararg_count; ++idx)
{
if (check_typval_type(expected, &li->li_tv) == FAIL)
goto failed_early;
li = li->li_next;
}
}
if (defcount > 0)
// Move varargs list to below missing default arguments.
*STACK_TV_BOT(defcount- 1) = *STACK_TV_BOT(-1);
*STACK_TV_BOT(defcount - 1) = *STACK_TV_BOT(-1);
--ectx.ec_stack.ga_len;
}