Struct sodium::Lazy

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

A representation for a value that may not be available until the current transaction is closed.

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impl<A: Send + Clone + 'static> Lazy<A>

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pub fn new<THUNK: FnMut() -> A + Send + 'static>(thunk: THUNK) -> Lazy<A>

Create a new Lazy whose value will be computed with the given function sometime after the end of the current transaction.

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pub fn of_value(value: A) -> Lazy<A>

Create a new immediately ready Lazy value from the given value.

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pub fn run(&self) -> A

Retrieve the value of this Lazy either by running the supplied function or returning the already computed value.

Trait Implementations§

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impl<A> Clone for Lazy<A>

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl<A> !RefUnwindSafe for Lazy<A>

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impl<A> Send for Lazy<A>
where A: Send,

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impl<A> Sync for Lazy<A>
where A: Send,

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impl<A> Unpin for Lazy<A>

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impl<A> !UnwindSafe for Lazy<A>

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> 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> 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, 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.