Struct SafeCell

pub struct SafeCell<T> { /* private fields */ }

The SafeCell type.

See the module-level documentation for more information.

Implementations

impl<T> SafeCell<T>

pub fn get(&self) -> &T

Returns a shared reference to the wrapped value.

pub fn get_mut(&mut self) -> &mut T

Returns a mutable reference to the wrapped value.

Using this reference, the value can be safely mutated. Using the type-level mechanism provided by exterior mutability, SafeCell guarantees that no unsound concurrent access can occur.

pub fn into_inner(self) -> T

Extracts and returns the wrapped value.

Note that this method must not be called concurrently, and once into_inner is called, references obtained by get and get_mut must no longer be used. This is statically ensured.

pub fn new(value: T) -> Self

Create a new SafeCell, enabling exterior mutability for the passed value.

Trait Implementations

impl<T: Clone> Clone for SafeCell<T>

fn clone(&self) -> SafeCell<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for SafeCell<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Default> Default for SafeCell<T>

fn default() -> SafeCell<T>

Returns the “default value” for a type.