Struct MappedArc

pub struct MappedArc<Inner, U>
where
    Inner: Deref,
{ /* private fields */ }

A mapped read guard in which the mapping function is a closure. If the mapping function is a function pointer, use Mapped.

Implementations

impl<Inner, U> MappedArc<Inner, U>

where Inner: Deref,

pub fn new( inner: Inner, map_fn: impl Fn(&Inner::Target) -> &U + 'static, ) -> Self

Creates a new mapped guard from the inner guard and the map function.

Trait Implementations

impl<Inner, U> Clone for MappedArc<Inner, U>

where Inner: Clone + Deref,

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Inner, U> Debug for MappedArc<Inner, U>

where Inner: Debug + Deref,

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

Formats the value using the given formatter.

impl<Inner, U> Deref for MappedArc<Inner, U>

where Inner: Deref,

type Target = U

The resulting type after dereferencing.

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

Dereferences the value.

impl<Inner, U: Display> Display for MappedArc<Inner, U>

where Inner: Deref,

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

Formats the value using the given formatter.

impl<Inner, U: PartialEq> PartialEq for MappedArc<Inner, U>

where Inner: Deref,

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.