Struct ArcRef

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pub struct ArcRef<T: ?Sized + 'static>(/* private fields */);
Expand description

Either a reference-counted Arc or a static reference to a value.

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impl<T: ?Sized> ArcRef<T>

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pub fn new_arc(t: Arc<T>) -> Self
where T: 'static,

Examples found in repository?
examples/logger.rs (lines 58-61)
57    fn new_logger(&self) -> ArcRef<dyn Logger> {
58        ArcRef::new_arc(Arc::new(FilteredLogger(
59            self.min_level,
60            self.delegate.clone(),
61        )))
62    }
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pub const fn new_ref(t: &'static T) -> Self

Examples found in repository?
examples/logger.rs (line 36)
34    fn new_logger(&self) -> ArcRef<dyn Logger> {
35        // StdoutLogger is a ZST, so we can create a &'static dyn Logger to it
36        ArcRef::new_ref(&StdoutLogger)
37    }

Trait Implementations§

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impl<T: ?Sized + 'static> AsRef<T> for ArcRef<T>

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fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.
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impl<T: ?Sized> Clone for ArcRef<T>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl<T> Debug for ArcRef<T>
where T: ?Sized + 'static + 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<T: ?Sized> Deref for ArcRef<T>

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type Target = T

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

Dereferences the value.
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impl<T> Display for ArcRef<T>
where T: ?Sized + 'static + Display,

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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<T: ?Sized> From<&'static T> for ArcRef<T>

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fn from(r: &'static T) -> Self

Converts to this type from the input type.
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impl<T: ?Sized + 'static> From<Arc<T>> for ArcRef<T>

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fn from(arc: Arc<T>) -> Self

Converts to this type from the input type.
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impl<T: 'static> From<T> for ArcRef<T>

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fn from(t: T) -> Self

Converts to this type from the input type.
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impl<T> Hash for ArcRef<T>
where T: ?Sized + 'static + Hash,

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T> Ord for ArcRef<T>
where T: ?Sized + 'static + Ord,

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl<S, T> PartialEq<ArcRef<S>> for ArcRef<T>
where S: ?Sized + 'static, T: ?Sized + 'static + PartialEq<S>,

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fn eq(&self, other: &ArcRef<S>) -> 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<S, T> PartialOrd<ArcRef<S>> for ArcRef<T>
where S: ?Sized + 'static, T: ?Sized + 'static + PartialOrd<S>,

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fn partial_cmp(&self, other: &ArcRef<S>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<T> Eq for ArcRef<T>
where T: ?Sized + 'static + Eq,

Auto Trait Implementations§

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impl<T> Freeze for ArcRef<T>
where T: ?Sized,

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impl<T> RefUnwindSafe for ArcRef<T>
where T: RefUnwindSafe + ?Sized,

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impl<T> Send for ArcRef<T>
where T: Sync + Send + ?Sized,

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impl<T> Sync for ArcRef<T>
where T: Sync + Send + ?Sized,

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impl<T> Unpin for ArcRef<T>
where T: ?Sized,

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impl<T> UnwindSafe for ArcRef<T>
where T: RefUnwindSafe + ?Sized,

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.
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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, 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.