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package test
// See: https://github.com/milessabin/si2712fix-demo/issues/3
object Test {
trait A[T1, T2] { }
trait B[T1, T2] { }
class C[T] extends A[T, Long] with B[T, Double]
class CB extends A[Boolean, Long] with B[Boolean, Double]
trait A2[T]
trait B2[T]
class C2[T] extends A2[T] with B2[T]
class CB2 extends A2[Boolean] with B2[Boolean]
def meh[M[_], A](x: M[A]): M[A] = x
val m0 = meh(new C[Boolean])
m0: C[Boolean]
val m1 = meh(new CB)
m1: B[Boolean, Double] // note: different order in which parents are visited for hk type inference. Dotty picks libearization order.
val m2 = meh(new C2[Boolean])
m2: C2[Boolean]
val m3 = meh(new CB2)
m3: B2[Boolean] // note: different order in which parents are visited for hk type inference. Dotty picks libearization order.
}
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