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.
fn borrow_mut(&mut self) -> &mut Borrowed
Mutably borrows from an owned value.
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);Run
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impl<'_, T: ?Sized> BorrowMut<T> for &'_ mut T
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impl<T> BorrowMut<[T]> for [T; 0]
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impl<T> BorrowMut<[T]> for [T; 1]
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impl<T> BorrowMut<[T]> for [T; 2]
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impl<T> BorrowMut<[T]> for [T; 3]
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impl<T> BorrowMut<[T]> for [T; 4]
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impl<T> BorrowMut<[T]> for [T; 5]
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impl<T> BorrowMut<[T]> for [T; 6]
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impl<T> BorrowMut<[T]> for [T; 7]
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impl<T> BorrowMut<[T]> for [T; 8]
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impl<T> BorrowMut<[T]> for [T; 9]
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impl<T> BorrowMut<[T]> for [T; 10]
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impl<T> BorrowMut<[T]> for [T; 11]
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impl<T> BorrowMut<[T]> for [T; 12]
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impl<T> BorrowMut<[T]> for [T; 13]
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impl<T> BorrowMut<[T]> for [T; 14]
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impl<T> BorrowMut<[T]> for [T; 15]
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impl<T> BorrowMut<[T]> for [T; 16]
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impl<T> BorrowMut<[T]> for [T; 17]
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impl<T> BorrowMut<[T]> for [T; 18]
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impl<T> BorrowMut<[T]> for [T; 19]
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impl<T> BorrowMut<[T]> for [T; 20]
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impl<T> BorrowMut<[T]> for [T; 21]
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impl<T> BorrowMut<[T]> for [T; 22]
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impl<T> BorrowMut<[T]> for [T; 23]
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impl<T> BorrowMut<[T]> for [T; 24]
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impl<T> BorrowMut<[T]> for [T; 25]
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impl<T> BorrowMut<[T]> for [T; 26]
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impl<T> BorrowMut<[T]> for [T; 27]
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impl<T> BorrowMut<[T]> for [T; 28]
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impl<T> BorrowMut<[T]> for [T; 29]
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impl<T> BorrowMut<[T]> for [T; 30]
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impl<T> BorrowMut<[T]> for [T; 31]
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impl<T> BorrowMut<[T]> for [T; 32]
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impl<T: ?Sized> BorrowMut<T> for T
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