Trait WrappedCreateFrom

pub trait WrappedCreateFrom<FromType, ToType> {
    // Required method
    fn take(x: FromType) -> ToType;

    // Provided method
    fn take_from(dest: &mut ToType, x: FromType) { ... }
}

The purpose of this trait is to create a new value of a passed object, when the passed object is the value, simply move the value; when the passed object is the reference, create the new value by clone. Other extension is possible.

The trait is used by ChildrenTable and slab.

Required Methods

fn take(x: FromType) -> ToType

Provided Methods

fn take_from(dest: &mut ToType, x: FromType)

Unoptimized default implementation.

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.

Implementations on Foreign Types

impl<'x, T: Clone> WrappedCreateFrom<&'x T, UnsafeCell<T>> for UnsafeCell<T>

fn take(val: &'x T) -> UnsafeCell<T>

fn take_from(dest: &mut UnsafeCell<T>, x: &'x T)

Implementors

impl<E: EntryTrait> WrappedCreateFrom<<E as EntryTrait>::EntryType, E> for E