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FnNat

Struct FnNat 

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pub struct FnNat<F>(pub F);
Expand description

Wrapper that adapts a Fn(u64) -> R closure into a NatCallback.

Inside the dispatch, the const generic N is passed to the closure as a plain u64. This loses the ability to construct types parameterized by N, but covers the common case where you just need the value.

Prefer reify_nat_fn which uses this internally.

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§0: F

Trait Implementations§

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impl<F: Fn(u64) -> R, R> NatCallback<R> for FnNat<F>

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fn call<const N: u64>(&self) -> R

Called with the const-generic N matching the runtime value.

Auto Trait Implementations§

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impl<F> Freeze for FnNat<F>
where F: Freeze,

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impl<F> RefUnwindSafe for FnNat<F>
where F: RefUnwindSafe,

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impl<F> Send for FnNat<F>
where F: Send,

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impl<F> Sync for FnNat<F>
where F: Sync,

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impl<F> Unpin for FnNat<F>
where F: Unpin,

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impl<F> UnsafeUnpin for FnNat<F>
where F: UnsafeUnpin,

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impl<F> UnwindSafe for FnNat<F>
where F: UnwindSafe,

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, 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.