Struct Mapped

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

A guard that maps over another guard.

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impl<T: 'static, U> Mapped<Plain<T>, U>

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pub fn try_new(inner: Arc<RwLock<T>>, map_fn: fn(&T) -> &U) -> Option<Self>

Creates a mapped read guard from the inner lock.

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impl<Inner, U> Mapped<Inner, U>
where Inner: Deref,

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pub fn new_with_guard(inner: Inner, map_fn: fn(&Inner::Target) -> &U) -> Self

Creates a mapped read guard from the inner guard.

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impl<Inner, U: Debug> Debug for Mapped<Inner, U>
where Inner: Deref + Debug, Inner::Target: Debug,

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

Formats the value using the given formatter. Read more
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impl<Inner, U> Deref for Mapped<Inner, U>
where Inner: Deref,

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type Target = U

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<Inner, U: Display> Display for Mapped<Inner, U>
where Inner: Deref,

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

Formats the value using the given formatter. Read more
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impl<Inner, U: PartialEq> PartialEq<U> for Mapped<Inner, U>
where Inner: Deref,

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<Inner, U: PartialEq> PartialEq for Mapped<Inner, U>
where Inner: Deref,

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

Auto Trait Implementations§

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impl<Inner, U> Freeze for Mapped<Inner, U>
where Inner: Freeze,

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impl<Inner, U> RefUnwindSafe for Mapped<Inner, U>
where Inner: RefUnwindSafe,

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impl<Inner, U> Send for Mapped<Inner, U>
where Inner: Send,

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impl<Inner, U> Sync for Mapped<Inner, U>
where Inner: Sync,

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impl<Inner, U> Unpin for Mapped<Inner, U>
where Inner: Unpin,

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impl<Inner, U> UnwindSafe for Mapped<Inner, U>
where Inner: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> StorageAccess<T> for T

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fn as_borrowed(&self) -> &T

Borrows the value.
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fn into_taken(self) -> T

Takes the value.
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more