Trait RefMut

pub trait RefMut<'a, T> {
    // Required method
    fn from_ref_mut(val: &'a mut T) -> Self;
}

A trait for things that are “close enough” to &'a mut T.

Required Methods

fn from_ref_mut(val: &'a mut T) -> Self

Obtains this value from a mutable reference, showing that it’s possible.

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<'a, K, V, R: Ref<'a, K>> RefMut<'a, (K, V)> for (R, &'a mut V)

Pull the key out of a key-value pair.

fn from_ref_mut(val: &'a mut (K, V)) -> (R, &'a mut V)

impl<'a, T> RefMut<'a, T> for &'a mut T

Identity implementation.

fn from_ref_mut(val: &'a mut T) -> &'a mut T

Implementors