Struct Ref

pub struct Ref<'a, T: ?Sized + 'a> { /* private fields */ }

An immutable reference to the value stored in a RefCell.

Implementations

impl<'a, T: ?Sized> Ref<'a, T>

pub fn clone(orig: &Ref<'a, T>) -> Ref<'a, T>

Clone the provided Ref value. This is treated as a separate borrow record from the original cloned reference.

pub fn map<U: ?Sized, F>(orig: Ref<'a, T>, f: F) -> Ref<'a, U>

where F: FnOnce(&T) -> &U,

pub fn filter_map<U: ?Sized, F>( orig: Ref<'a, T>, f: F, ) -> Result<Ref<'a, U>, Self>

where F: FnOnce(&T) -> Option<&U>,

Trait Implementations

impl<'b, T: ?Sized + Debug> Debug for Ref<'b, T>

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

Formats the value using the given formatter.

impl<'a, T: ?Sized> Deref for Ref<'a, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<'a, T: ?Sized + Display> Display for Ref<'a, T>

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

Formats the value using the given formatter.