Trait moveref::Emplace

pub trait Emplace<T>: Sized + Deref {
    type Output: Deref<Target = Self::Target>;

    // Required method
    fn try_emplace<N: TryNew<Output = T>>(
        new: N
    ) -> Result<Self::Output, N::Error>;

    // Provided method
    fn emplace<N: New<Output = T>>(new: N) -> Self::Output { ... }
}

Operations for constructing New values into a Self::Output instance.

Required Associated Types

type Output: Deref<Target = Self::Target>

Required Methods

fn try_emplace<N: TryNew<Output = T>>(new: N) -> Result<Self::Output, N::Error>

Try to construct a New value into a fresh Self::Output instance.

Errors

Should return Err if the new initializer fails with an error.

Provided Methods

fn emplace<N: New<Output = T>>(new: N) -> Self::Output

Construct a New value into a fresh Self::Output instance.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<T> Emplace<T> for Box<T>

type Output = Pin<Box<T>>

fn try_emplace<N: TryNew<Output = T>>(new: N) -> Result<Self::Output, N::Error>

impl<T> Emplace<T> for Rc<T>

type Output = Pin<Rc<T>>

fn try_emplace<N: TryNew<Output = T>>(new: N) -> Result<Self::Output, N::Error>

impl<T> Emplace<T> for Arc<T>

type Output = Pin<Arc<T>>

fn try_emplace<N: TryNew<Output = T>>(new: N) -> Result<Self::Output, N::Error>

Implementors