v/vlib/v/checker/tests/is_type_not_exist.v

type Integer = i8 | i16 | int | i64

fn main() {
	fn_with_sum_type_param(1)
}

fn fn_with_sum_type_param(i Integer) {
	if i is SomethingThatDontExist {
		println('It should fail !')
	}
}