Struct OwnedErasedBox 

pub struct OwnedErasedBox { /* private fields */ }

Available on crate feature embedded_runtime only.

A type-erased owned heap allocation, dropped (running T’s destructor) when this value is dropped.

new hands back a &'static mut T into the allocation, which can be lent to a generated embedded function while the OwnedErasedBox — whose type does not mention T, useful when T is unnameable (e.g. a struct of impl FnMut sinks) — is stored alongside the flow to keep the allocation alive. Like AliasedBox, only a raw pointer is stored, so moving this value does not invalidate the outstanding reference.

Implementations

impl OwnedErasedBox

pub unsafe fn new<T>(value: T) -> (Self, &'static mut T)

Heap-allocates value, returning the type-erased owner along with a &'static mut T to the allocation.

Safety

The returned reference (and anything derived from it) must not be used after the returned OwnedErasedBox is dropped, despite the 'static lifetime.

Trait Implementations

impl Debug for OwnedErasedBox

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for OwnedErasedBox

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.