patch 8.2.3117: Vim9: type not properly checked in for loop
Problem: Vim9: type not properly checked in for loop.
Solution: Have items() return a list of lists. Add runtime type checks.
(closes #8515)
diff --git a/src/evalfunc.c b/src/evalfunc.c
index ec74fde..34eac69 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -522,6 +522,11 @@
return &t_list_dict_any;
}
static type_T *
+ret_list_items(int argcount, type_T **argtypes UNUSED)
+{
+ return &t_list_list_any;
+}
+ static type_T *
ret_dict_any(int argcount UNUSED, type_T **argtypes UNUSED)
{
return &t_dict_any;
@@ -1166,7 +1171,7 @@
{"isnan", 1, 1, FEARG_1, arg1_float_or_nr,
ret_number_bool, MATH_FUNC(f_isnan)},
{"items", 1, 1, FEARG_1, arg1_dict,
- ret_list_any, f_items},
+ ret_list_items, f_items},
{"job_getchannel", 1, 1, FEARG_1, NULL,
ret_channel, JOB_FUNC(f_job_getchannel)},
{"job_info", 0, 1, FEARG_1, NULL,
@@ -3687,6 +3692,7 @@
{
if (argcount == 1 && argtypes[0]->tt_type == VAR_STRING)
return &t_func_any;
+ // Need to check the type at runtime, the function may be defined later.
return &t_func_unknown;
}