Struct HandlerRef 

pub struct HandlerRef<'a, U: ?Sized> { /* private fields */ }

A shared reference to a handler.

Implementations

impl<T: ?Sized> HandlerRef<'_, T>

pub fn clone(orig: &Self) -> Self

Copies a HandlerRef.

This is an associated function that needs to be used as HandlerRef::clone(...).

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

pub fn map<U: ?Sized, F>(orig: Self, f: F) -> HandlerRef<'a, U>

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

Makes a new HandlerRef for a component of the borrowed data.

This is an associated function that needs to be used as HandlerRef::map(...). A method would interfere with methods of the same name on the contents of a handler used through Deref.

Trait Implementations

impl<T> Debug for HandlerRef<'_, T>

where T: Debug + ?Sized,

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

Formats the value using the given formatter.

impl<T: ?Sized> Deref for HandlerRef<'_, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T> Display for HandlerRef<'_, T>

where T: Display + ?Sized,

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

Formats the value using the given formatter.