Struct RefValMut

pub struct RefValMut<'b, T> { /* private fields */ }

A type containing a value that contains a borrowed mutable reference to a value from a RefCell<T>.

See the module-level documentation for more.

Implementations

impl<'b, T> RefValMut<'b, T>

pub fn map<U: Sized, F>(orig: RefValMut<'b, T>, f: F) -> RefValMut<'b, U>

where F: FnOnce(T) -> U,

Make a new RefValMut from the another RefValMut.

The RefCell is already mutably borrowed, so this operation cannot fail.

Trait Implementations

impl<T: Sized + Debug> Debug for RefValMut<'_, T>

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

Formats the value using the given formatter.

impl<T> Deref for RefValMut<'_, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T> DerefMut for RefValMut<'_, T>

fn deref_mut(&mut self) -> &mut T

Mutably dereferences the value.

impl<T: Display> Display for RefValMut<'_, T>

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

Formats the value using the given formatter.