177 pub struct Caster<T: ?Sized + 'static> {  struct
199 impl<T: ?Sized + 'static> Caster<T> {  impl
205     ) -> Caster<T> {  in new()
206         Caster::<T> {  in new()
221     ) -> Caster<T> {  in new_sync()
222         Caster::<T> {  in new_sync()
239 fn caster<T: ?Sized + 'static>(type_id: TypeId) -> Option<&'static Caster<T>> {  in caster()
243             .get(&(type_id, TypeId::of::<Caster<T>>()))  in caster()
244             .and_then(|caster| caster.downcast_ref::<Caster<T>>())  in caster()
250             .get(&(type_id, TypeId::of::<Caster<T>>()))  in caster()
251             .and_then(|caster| caster.downcast_ref::<Caster<T>>())  in caster()
388         let caster = Box::new(Caster::<dyn Debug> {  in create_test_caster()