Trait DynDynCastTarget

pub trait DynDynCastTarget: Sealed {
    type Root: ?Sized;

    // Required methods
    fn ptr_into_parts(
        ptr: NonNull<Self>,
    ) -> (NonNull<()>, DynMetadata<Self::Root>);
    fn ptr_from_parts(
        data: NonNull<()>,
        meta: DynMetadata<Self::Root>,
    ) -> NonNull<Self>;
}

A type whose pointer metadata can be stored in a DynDynTable.

Required Associated Types

type Root: ?Sized

The root type that the trait object metadata is for.

Required Methods

fn ptr_into_parts(ptr: NonNull<Self>) -> (NonNull<()>, DynMetadata<Self::Root>)

Splits a fat pointer into its data pointer and metadata.

fn ptr_from_parts( data: NonNull<()>, meta: DynMetadata<Self::Root>, ) -> NonNull<Self>

Combines a data pointer with the provided metadata to produce a fat pointer.

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<M: ?Sized, T: Pointee<Metadata = DynMetadata<M>> + ?Sized> DynDynCastTarget for T

type Root = M