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Deferred

Struct Deferred 

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pub struct Deferred<A> { /* private fields */ }
Expand description

A deferred value that is computed from another lazy value.

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impl<A: 'static> Deferred<A>

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pub fn new(f: impl FnOnce() -> A + 'static) -> Self

Defer a computation.

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pub fn pure(a: A) -> Self

Lift a value into Deferred.

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pub fn force(self) -> A

Force the deferred value.

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pub fn map<B: 'static>(self, f: impl FnOnce(A) -> B + 'static) -> Deferred<B>

Map over the deferred value (still lazy).

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pub fn bind<B: 'static>( self, f: impl FnOnce(A) -> Deferred<B> + 'static, ) -> Deferred<B>

Bind: flat-map over a deferred value.

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pub fn zip<B: 'static>(self, other: Deferred<B>) -> Deferred<(A, B)>

Zip two deferred values into a pair (still lazy).

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impl<A: 'static + Debug> Debug for Deferred<A>

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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<A> Freeze for Deferred<A>

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impl<A> !RefUnwindSafe for Deferred<A>

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impl<A> !Send for Deferred<A>

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impl<A> !Sync for Deferred<A>

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impl<A> Unpin for Deferred<A>

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impl<A> UnsafeUnpin for Deferred<A>

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impl<A> !UnwindSafe for Deferred<A>

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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<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.