3 // This test is complement to the test in issue-73976-polymorphic.rs.
4 // In that test we ensure that polymorphic use of type_id and type_name in patterns
5 // will be properly rejected. This test will ensure that monomorphic use of these
6 // would not be wrongly rejected in patterns.
8 #![feature(const_type_id)]
9 #![feature(const_type_name)]
11 use std::any::{self, TypeId};
13 pub struct GetTypeId<T>(T);
15 impl<T: 'static> GetTypeId<T> {
16 pub const VALUE: TypeId = TypeId::of::<T>();
19 const fn check_type_id<T: 'static>() -> bool {
20 matches!(GetTypeId::<T>::VALUE, GetTypeId::<usize>::VALUE)
23 pub struct GetTypeNameLen<T>(T);
25 impl<T: 'static> GetTypeNameLen<T> {
26 pub const VALUE: usize = any::type_name::<T>().len();
29 const fn check_type_name_len<T: 'static>() -> bool {
30 matches!(GetTypeNameLen::<T>::VALUE, GetTypeNameLen::<usize>::VALUE)
34 assert!(check_type_id::<usize>());
35 assert!(check_type_name_len::<usize>());