Enum Mutable

pub enum Mutable {}

Represents the mutability of a mutable (unique) reference, &mut T.

Along with Shared, this is one of the two types that can be used as a generic mutability parameter. It is an empty type because it is always used as a generic parameter and never as a value.

Implementations

impl Mutable

pub fn mutability() -> IsMutable<Mutable>

This method returns a proof for the mutable-ness of Mutable. Note: this method shadows <Mutable as Mutability>::mutability(), which returns the same proof wrapped in MutabilityEnum::Mutable. If you have access to this method (i.e. in non-generic contexts), you should not need <Mutable as Mutability>::mutability().

Trait Implementations

impl Clone for Mutable

fn clone(&self) -> Mutable

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Mutability for Mutable

fn mutability() -> MutabilityEnum<Self>

The result of this method lets you match over the mutability values to obtain a proof, which can be used to access features that are only available for one mutability.

impl Copy for Mutable