Trait mischief::Metadata

pub unsafe trait Metadata<T: Pointee<Metadata = Self> + ?Sized>: Copy + Send + Sync + Ord + Hash + Unpin {
    unsafe fn pointee_layout(self) -> Layout;
}

Pointer metadata that can determine the memory layout of its pointee.

Safety

pointee_layout must return the correct layout of a T pointee with this metadata.

Required Methods

unsafe fn pointee_layout(self) -> Layout

Returns the layout of a T pointee with the this metadata.

Safety

self must be valid metadata for T.

Implementations on Foreign Types

impl<T> Metadata<T> for ()

unsafe fn pointee_layout(self) -> Layout

impl<T> Metadata<[T]> for usize

unsafe fn pointee_layout(self) -> Layout

impl Metadata<str> for usize

unsafe fn pointee_layout(self) -> Layout

impl<T> Metadata<T> for DynMetadata<T>where
    T: Pointee<Metadata = DynMetadata<T>> + ?Sized,

unsafe fn pointee_layout(self) -> Layout

Implementors