diff options
Diffstat (limited to 'core/shared/src/main/scala/magnolia.scala')
| -rw-r--r-- | core/shared/src/main/scala/magnolia.scala | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/core/shared/src/main/scala/magnolia.scala b/core/shared/src/main/scala/magnolia.scala index f55dfa7..68c0f4f 100644 --- a/core/shared/src/main/scala/magnolia.scala +++ b/core/shared/src/main/scala/magnolia.scala @@ -1,6 +1,7 @@ package magnolia -import scala.reflect._, macros._ +import scala.reflect._ +import macros._ import scala.collection.immutable.ListMap import language.existentials import language.higherKinds @@ -505,15 +506,14 @@ object Magnolia { * * This method is intended to be called only from code generated by the Magnolia macro, and * should not be called directly from users' code. */ - def subtype[Tc[_], T, S <: T](name: String, tc: => Tc[S], isType: T => Boolean, asType: T => S) = - new Subtype[Tc, T] { + def subtype[Tc[_], T, S <: T](name: String, tc: => Tc[S], isType: T => Boolean, asType: T => S): Subtype[Tc, T] = + new Subtype[Tc, T] with PartialFunction[T, S] { type SType = S def label: String = name def typeclass: Tc[SType] = tc - def cast: PartialFunction[T, SType] = new PartialFunction[T, S] { - def isDefinedAt(t: T) = isType(t) - def apply(t: T): SType = asType(t) - } + def cast: PartialFunction[T, SType] = this + def isDefinedAt(t: T) = isType(t) + def apply(t: T): SType = asType(t) } /** constructs a new [[Param]] instance |