Trait BorrowMut

pub trait BorrowMut<Borrowed>: Borrow<Borrowed>
where
    Borrowed: ?Sized,
{
    // Required method
    fn borrow_mut(&mut self) -> &mut Borrowed;
}

core A trait for mutably borrowing data.

Re-exported from core::borrow:: .

---

A trait for mutably borrowing data.

As a companion to Borrow<T> this trait allows a type to borrow as an underlying type by providing a mutable reference. See Borrow<T> for more information on borrowing as another type.

Required Methods

fn borrow_mut(&mut self) -> &mut Borrowed

Mutably borrows from an owned value.

Examples

use std::borrow::BorrowMut;

fn check<T: BorrowMut<[i32]>>(mut v: T) {
    assert_eq!(&mut [1, 2, 3], v.borrow_mut());
}

let v = vec![1, 2, 3];

check(v);

Implementors

impl BorrowMut<str> for devela::all::String

impl BorrowMut<[u8]> for BytesMut

impl<'a, T> BorrowMut<T> for devela::_dep::bumpalo::boxed::Box<'a, T>

where T: ?Sized,

impl<'bump> BorrowMut<str> for devela::_dep::bumpalo::collections::String<'bump>

impl<'bump, T> BorrowMut<[T]> for devela::_dep::bumpalo::collections::Vec<'bump, T>

where T: 'bump,

impl<A> BorrowMut<[<A as Array>::Item]> for SmallVec<A>

where A: Array,

impl<T> BorrowMut<[T]> for SerVec<T>

impl<T> BorrowMut<T> for &mut T

where T: ?Sized,

impl<T> BorrowMut<T> for Owned<T>

where T: Pointable + ?Sized,

impl<T> BorrowMut<T> for T

where T: ?Sized,

impl<T, A> BorrowMut<[T]> for devela::all::Vec<T, A>

where A: Allocator,

impl<T, A> BorrowMut<T> for UniqueRc<T, A>

where A: Allocator, T: ?Sized,

impl<T, A> BorrowMut<T> for devela::all::Box<T, A>

where A: Allocator, T: ?Sized,

impl<T, const CAP: usize> BorrowMut<[T]> for ArrayVec<T, CAP>

impl<T, const CAP: usize, S: Storage> BorrowMut<[T; CAP]> for Array<T, CAP, S>

impl<T, const N: usize> BorrowMut<[T]> for [T; N]

impl<T, const N: usize> BorrowMut<[T]> for InlineVec<T, N>

impl<const A: usize> BorrowMut<[u8]> for AlignedVec<A>

impl<const CAP: usize> BorrowMut<str> for ArrayString<CAP>