Trait frunk::hlist::IntoTuple2
source · pub trait IntoTuple2 {
type HeadType;
type TailOutput;
fn into_tuple2(self) -> (Self::HeadType, Self::TailOutput);
}
Expand description
Trait for transforming an HList into a nested tuple.
This trait is part of the implementation of the inherent method
HCons::into_tuple2
. Please see that method for more information.
This operation is not useful in generic contexts, so it is unlikely
that you should ever need to import this trait. Do not worry;
if you have an HList of known type, then list.into_tuple2()
should “just work,” even without the trait.
Required Associated Types
sourcetype TailOutput
type TailOutput
The 1 element in the output tuple
Required Methods
sourcefn into_tuple2(self) -> (Self::HeadType, Self::TailOutput)
fn into_tuple2(self) -> (Self::HeadType, Self::TailOutput)
Turns an HList into nested Tuple2s, which are less troublesome to pattern match and have a nicer type signature.
Please see the inherent method for more information.