Enum Deferred

pub enum Deferred<T>where
    T: FutureNotion,{
    Pending {
        input: Rc<T::Input>,
    },
    Completed {
        input: Rc<T::Input>,
        output: Rc<T::Output>,
    },
    Outdated {
        input: Rc<T::Input>,
    },
}

Expand description

A deferred result type for future notions.

For each future notion T, a Deferred<T> the following notions will be applied to states:

A Deferred::<T>::Pending Notion will be applied before a future notion starts running.
A Deferred::<T>::Complete Notion will be applied after a future notion completes.
If any states are used during the run of a future notion, a Deferred::<T>::Outdated Notion will be applied once after the value of any used states changes.

Variants§

Pending

A future notion is running.

Fields

§input: Rc<T::Input>

The input value of a future notion.

Completed

A future notion has completed.

Fields

§input: Rc<T::Input>

The input value of a future notion.

§output: Rc<T::Output>

The output value of a future notion.

Outdated

The states used in the future notion run has been changed.

Fields

§input: Rc<T::Input>

The input value of a future notion.

Implementations§

impl<T> Deferred<T>
where T: FutureNotion,

pub fn is_pending(&self) -> bool

Returns true if current future notion is still running.

pub fn is_completed(&self) -> bool

Returns true if current future notion has been completed.

pub fn is_outdated(&self) -> bool

Returns true if current future notion is outdated.

pub fn input(&self) -> Rc<T::Input>

Returns the input of current future notion.

pub fn output(&self) -> Option<Rc<T::Output>>

Returns the output of current future notion if it has completed.

Trait Implementations§

impl<T> Clone for Deferred<T>
where T: FutureNotion,

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

impl<T> Debug for Deferred<T>
where T: FutureNotion + Debug, T::Input: Debug, T::Output: Debug,

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl<T> Freeze for Deferred<T>

impl<T> RefUnwindSafe for Deferred<T>
where <T as FutureNotion>::Input: RefUnwindSafe, <T as FutureNotion>::Output: RefUnwindSafe,

impl<T> !Send for Deferred<T>

impl<T> !Sync for Deferred<T>

impl<T> Unpin for Deferred<T>

impl<T> UnwindSafe for Deferred<T>
where <T as FutureNotion>::Input: RefUnwindSafe, <T as FutureNotion>::Output: RefUnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoPropValue<Option<T>> for T

fn into_prop_value(self) -> Option<T>

Convert self to a value of a Properties struct.

impl<T> IntoPropValue<T> for T

fn into_prop_value(self) -> T

Convert self to a value of a Properties struct.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

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

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

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

fn with_current_subscriber(self) -> WithDispatch<Self>

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

impl<Token, Builder, How> AllPropsFor<Builder, How> for Token
where Builder: Buildable<Token>, <Builder as Buildable<Token>>::WrappedToken: HasAllProps<<Builder as Buildable<Token>>::Output, How>,

impl<T> Any for T
where T: Any,

impl<T> CloneAny for T
where T: Any + Clone,

impl<T> HasAllProps<(), T> for T