rcref

Struct RcRef

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pub struct RcRef<T, U> { /* private fields */ }
Expand description

Something that holds a std::rc::Rc strong reference, but derefs to some component inside of it.

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impl<T, U> RcRef<T, U>

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pub fn new<F>(rc: Rc<T>, f: F) -> RcRef<T, U>
where F: FnOnce(&T) -> &U,

Create a RcRef for a component in a given Rc.

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pub fn new_opt<F>(rc: Rc<T>, f: F) -> Option<RcRef<T, U>>
where F: FnOnce(&T) -> Option<&U>,

Create a RcRef for and a component that may or may not be in a given Rc.

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impl<T, U> Deref for RcRef<T, U>

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type Target = U

The resulting type after dereferencing.
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fn deref(&self) -> &U

Dereferences the value.

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impl<T, U> Freeze for RcRef<T, U>

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impl<T, U> RefUnwindSafe for RcRef<T, U>
where T: RefUnwindSafe, U: RefUnwindSafe,

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impl<T, U> !Send for RcRef<T, U>

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impl<T, U> !Sync for RcRef<T, U>

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impl<T, U> Unpin for RcRef<T, U>

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impl<T, U> UnwindSafe for RcRef<T, U>
where T: RefUnwindSafe, U: RefUnwindSafe,

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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, 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, 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.