frunk_utils

Struct Poly

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

The Func trait from frunk doesn’t take self as a parameter to call so there isn’t an easy way to get context from the surrounding scope. Here we define our own Poly wrapper and Func trait that does take self as a parameter so the caller can include whatever context they need.

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§0: F

Trait Implementations§

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impl<F: Func<Head>, Head, Tail: HMappable<Poly<F>>> HMappable<Poly<F>> for HCons<Head, Tail>

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type Output = HCons<<F as Func<Head>>::Output, <Tail as HMappable<Poly<F>>>::Output>

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fn map(self, mapper: Poly<F>) -> Self::Output

Apply a function to each element of an HList. Read more

Auto Trait Implementations§

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

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

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

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

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

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impl<F> UnwindSafe for Poly<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<Choices> CoproductSubsetter<CNil, HNil> for Choices

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type Remainder = Choices

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fn subset( self, ) -> Result<CNil, <Choices as CoproductSubsetter<CNil, HNil>>::Remainder>

Extract a subset of the possible types in a coproduct (or get the remaining possibilities) 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, I> LiftInto<U, I> for T
where U: LiftFrom<T, I>,

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fn lift_into(self) -> U

Performs the indexed conversion.
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impl<Source> Sculptor<HNil, HNil> for Source

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type Remainder = Source

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fn sculpt(self) -> (HNil, <Source as Sculptor<HNil, HNil>>::Remainder)

Consumes the current HList and returns an HList with the requested shape. 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.