Trait IntoMut

pub trait IntoMut<T: ?Sized>: SmartPointer<T> {
    type MutablePointer: SmartPointerMut<T> + Into<Self>;

    // Required methods
    fn can_make_mut(this: &Self) -> bool;
    unsafe fn into_mut_unchecked(this: Self) -> Self::MutablePointer;
    unsafe fn get_mut_unchecked(this: &Self) -> &mut T;

    // Provided methods
    fn into_mut(this: Self) -> Result<Self::MutablePointer, Self> { ... }
    fn get_mut(this: &Self) -> Option<&mut T> { ... }
}

A SmartPointer which might grant mutable access, depending on run-time checks.

Required Associated Types

type MutablePointer: SmartPointerMut<T> + Into<Self>

Required Methods

fn can_make_mut(this: &Self) -> bool

Check whether converting into a mutable version would succeed.

unsafe fn into_mut_unchecked(this: Self) -> Self::MutablePointer

Convert into a mutable version without performing runtime checks for upholding any invariants.

Safety: Calling this is safe if and only if can_make_mut returns true.

unsafe fn get_mut_unchecked(this: &Self) -> &mut T

Obtain a mutable reference to the wrapped value without performing runtime checks for upholding any invariants.

Safety: Calling this is safe if and only if can_make_mut returns true.

Provided Methods

fn into_mut(this: Self) -> Result<Self::MutablePointer, Self>

Try converting into a mutable version of the pointer.

fn get_mut(this: &Self) -> Option<&mut T>

Try obtaining a mutable reference to the wrapped value.

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.

Implementors