Struct koto_runtime::KCell

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pub struct KCell<T>(/* private fields */)
where
    T: ?Sized;
Expand description

A mutable value with borrowing checked at runtime

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impl<T> KCell<T>
where T: ?Sized,

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pub fn borrow(&self) -> Borrow<'_, T>

Immutably borrows the wrapped value.

Multiple immutable borrows can be made at the same time.

If the value is currently mutably borrowed then this function will block. See try_borrow for a non-blocking version.

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pub fn try_borrow(&self) -> Option<Borrow<'_, T>>

Attempts to mutably borrow the wrapped value.

Returns an error if the value is currently mutably borrowed.

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pub fn borrow_mut(&self) -> BorrowMut<'_, T>

Mutably borrows the wrapped value.

If the value is currently borrowed then this function will block until the value can be locked. See try_borrow_mut for a non-blocking version.

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pub fn try_borrow_mut(&self) -> Option<BorrowMut<'_, T>>

Attempts to mutably borrow the wrapped value.

Returns an error if the value is currently mutably borrowed.

Trait Implementations§

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impl<T> Debug for KCell<T>
where T: Debug + ?Sized,

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

Formats the value using the given formatter. Read more
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impl<T> Default for KCell<T>
where T: Default + ?Sized,

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fn default() -> KCell<T>

Returns the “default value” for a type. Read more
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impl<T> From<T> for KCell<T>

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fn from(value: T) -> KCell<T>

Converts to this type from the input type.

Auto Trait Implementations§

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impl<T> !Freeze for KCell<T>

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impl<T> !RefUnwindSafe for KCell<T>

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

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

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impl<T> Unpin for KCell<T>
where T: Unpin + ?Sized,

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impl<T> UnwindSafe for KCell<T>
where T: UnwindSafe + ?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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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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<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.