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Add curried type aliases for Instances to be used as context bounds #193

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Jan 10, 2024
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Add curried type aliases for Instances to be used as context bounds #193

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16 changes: 16 additions & 0 deletions modules/deriving/src/main/scala/shapeless3/deriving/kinds.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,10 @@ object K0:
type ProductInstances[F[_], T] = ErasedProductInstances[K0.type, F[T]]
type CoproductInstances[F[_], T] = ErasedCoproductInstances[K0.type, F[T]]

type InstancesOf[F[_]] = [T] =>> Instances[F, T]
type ProductInstancesOf[F[_]] = [T] =>> ProductInstances[F, T]
type CoproductInstancesOf[F[_]] = [T] =>> CoproductInstances[F, T]

def Instances[F[_], T](using inst: Instances[F, T]): inst.type = inst
def ProductInstances[F[_], T](using inst: ProductInstances[F, T]): inst.type = inst
def CoproductInstances[F[_], T](using inst: CoproductInstances[F, T]): inst.type = inst
Expand Down Expand Up @@ -193,6 +197,10 @@ object K1:
type ProductInstances[F[_[_]], T[_]] = ErasedProductInstances[K1.type, F[T]]
type CoproductInstances[F[_[_]], T[_]] = ErasedCoproductInstances[K1.type, F[T]]

type InstancesOf[F[_[_]]] = [T[_]] =>> Instances[F, T]
type ProductInstancesOf[F[_[_]]] = [T[_]] =>> ProductInstances[F, T]
type CoproductInstancesOf[F[_[_]]] = [T[_]] =>> CoproductInstances[F, T]

def Instances[F[_[_]], T[_]](using inst: Instances[F, T]): inst.type = inst
def ProductInstances[F[_[_]], T[_]](using inst: ProductInstances[F, T]): inst.type = inst
def CoproductInstances[F[_[_]], T[_]](using inst: CoproductInstances[F, T]): inst.type = inst
Expand Down Expand Up @@ -338,6 +346,10 @@ object K11:
type ProductInstances[F[_[_[_]]], T[_[_]]] = ErasedProductInstances[K11.type, F[T]]
type CoproductInstances[F[_[_[_]]], T[_[_]]] = ErasedCoproductInstances[K11.type, F[T]]

type InstancesOf[F[_[_[_]]]] = [T[_[_]]] =>> Instances[F, T]
type ProductInstancesOf[F[_[_[_]]]] = [T[_[_]]] =>> ProductInstances[F, T]
type CoproductInstancesOf[F[_[_[_]]]] = [T[_[_]]] =>> CoproductInstances[F, T]

def Instances[F[_[_[_]]], T[_[_]]](using inst: Instances[F, T]): inst.type = inst
def ProductInstances[F[_[_[_]]], T[_[_]]](using inst: ProductInstances[F, T]): inst.type = inst
def CoproductInstances[F[_[_[_]]], T[_[_]]](using inst: CoproductInstances[F, T]): inst.type = inst
Expand Down Expand Up @@ -490,6 +502,10 @@ object K2:
type ProductInstances[F[_[_, _]], T[_, _]] = ErasedProductInstances[K2.type, F[T]]
type CoproductInstances[F[_[_, _]], T[_, _]] = ErasedCoproductInstances[K2.type, F[T]]

type InstancesOf[F[_[_, _]]] = [T[_, _]] =>> Instances[F, T]
type ProductInstancesOf[F[_[_, _]]] = [T[_, _]] =>> ProductInstances[F, T]
type CoproductInstancesOf[F[_[_, _]]] = [T[_, _]] =>> CoproductInstances[F, T]

def Instances[F[_[_, _]], T[_, _]](using inst: Instances[F, T]): inst.type = inst
def ProductInstances[F[_[_, _]], T[_, _]](using inst: ProductInstances[F, T]): inst.type = inst
def CoproductInstances[F[_[_, _]], T[_, _]](using inst: CoproductInstances[F, T]): inst.type = inst
Expand Down