enumset

Trait EnumSetTypeWithRepr

Source 
pub unsafe trait EnumSetTypeWithRepr: EnumSetType + EnumSetTypePrivate<Repr = Self::Repr> {
    type Repr: EnumSetTypeRepr;
}
Expand description

An EnumSetType for which EnumSets have a guaranteed in-memory representation.

An implementation of this trait is generated by using #[derive(EnumSetType)] with the annotation #[enumset(repr = "…")], where … is u8, u16, u32, u64 or u128.

For any type T that implements this trait, the in-memory representation of EnumSet<T> is guaranteed to be Repr. This guarantee is useful for FFI. See the EnumSet documentation under “FFI, Safety and repr” for an example.

Required Associated Types§

Source

type Repr: EnumSetTypeRepr

The guaranteed representation.

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§