Trait GetUTID

pub trait GetUTID<T> {
    const UID: extern "C" fn() -> MaybeCmp<UTypeId>;
}

Gets a function optionally returning the UTypeId of T.

Whether the function returns MaybeCmp::Just(typeid) is determined by implementors:

• TD_CanDowncast: the function always returns MaybeCmp::Just(typeid).

• TD_Opaque: the function always returns MaybeCmp::Nothing.

Required Associated Constants

const UID: extern "C" fn() -> MaybeCmp<UTypeId>

the function.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> GetUTID<T> for TD_CanDowncast

where T: 'static,

const UID: extern "C" fn() -> MaybeCmp<UTypeId>

impl<T> GetUTID<T> for TD_Opaque

const UID: extern "C" fn() -> MaybeCmp<UTypeId> = {std_types::utypeid::no_utypeid as extern "C" fn() -> sabi_types::maybe_cmp::MaybeCmp<std_types::utypeid::UTypeId>}