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author | Paul Phillips <paulp@improving.org> | 2012-08-16 14:50:25 -0700 |
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committer | Paul Phillips <paulp@improving.org> | 2012-08-16 14:50:25 -0700 |
commit | 847966d65d42cd82be110856d2f354e365edbf15 (patch) | |
tree | 9bd584d518f5a2234b67840fc16fd98cfca3b781 /test/files | |
parent | 4a71d4abc8c0613d247a5d765d735d3c3c13e694 (diff) | |
parent | db46c71e8830639bc79e6363332a06642fd3d8cc (diff) | |
download | scala-847966d65d42cd82be110856d2f354e365edbf15.tar.gz scala-847966d65d42cd82be110856d2f354e365edbf15.tar.bz2 scala-847966d65d42cd82be110856d2f354e365edbf15.zip |
Merge pull request #1122 from paulp/topic/lubbing-not-flubbing
Improvement for SI-2251, failure to lub f-bounds.
Diffstat (limited to 'test/files')
-rw-r--r-- | test/files/neg/lubs.check | 9 | ||||
-rw-r--r-- | test/files/pos/ticket2251.scala | 14 | ||||
-rw-r--r-- | test/files/run/lub-visibility.check | 2 | ||||
-rw-r--r-- | test/files/run/t2251.check | 1 | ||||
-rw-r--r-- | test/files/run/t2251.scala | 19 | ||||
-rw-r--r-- | test/files/run/t2251b.check | 11 | ||||
-rw-r--r-- | test/files/run/t2251b.scala | 48 |
7 files changed, 101 insertions, 3 deletions
diff --git a/test/files/neg/lubs.check b/test/files/neg/lubs.check index 77ab20102c..affbd4983c 100644 --- a/test/files/neg/lubs.check +++ b/test/files/neg/lubs.check @@ -1,5 +1,10 @@ +lubs.scala:10: error: type mismatch; + found : test1.A[test1.A[Object]] + required: test1.A[test1.A[test1.A[Any]]] + val x3: A[A[A[Any]]] = f + ^ lubs.scala:11: error: type mismatch; - found : test1.A[test1.A[test1.A[Any]]] + found : test1.A[test1.A[Object]] required: test1.A[test1.A[test1.A[test1.A[Any]]]] val x4: A[A[A[A[Any]]]] = f ^ @@ -13,4 +18,4 @@ lubs.scala:25: error: type mismatch; required: test2.A{type T >: Null <: test2.A{type T >: Null <: test2.A{type T >: Null <: test2.A}}} val x4: A { type T >: Null <: A { type T >: Null <: A { type T >: Null <: A } } } = f ^ -three errors found +four errors found diff --git a/test/files/pos/ticket2251.scala b/test/files/pos/ticket2251.scala index b3afee4ea9..c220e85350 100644 --- a/test/files/pos/ticket2251.scala +++ b/test/files/pos/ticket2251.scala @@ -22,4 +22,18 @@ lub of List(D, C) is B[_2] forSome { type _2 >: D with C{} <: B[_1] forSome { ty // should be: B[X] forSome {type X <: B[X]} -- can this be done automatically? for now, just detect f-bounded polymorphism and fall back to more coarse approximation val data: List[A] = List(new C, new D) + + val data2 = List(new C, new D) + + val data3: List[B[X] forSome { type X <: B[_ <: A] }] = List(new C, new D) + + // Not yet -- + // val data4: List[B[X] forSome { type X <: B[X] }] = List(new C, new D) + // <console>:7: error: type mismatch; + // found : List[B[_ >: D with C <: B[_ >: D with C <: A]]] + // required: List[B[X] forSome { type X <: B[X] }] + // val data4: List[B[X] forSome { type X <: B[X] }] = List(new C, new D) + + // works + val data5 = List[B[X] forSome { type X <: B[X] }](new C, new D) } diff --git a/test/files/run/lub-visibility.check b/test/files/run/lub-visibility.check index 3461d1bf6b..f3a6bef215 100644 --- a/test/files/run/lub-visibility.check +++ b/test/files/run/lub-visibility.check @@ -8,7 +8,7 @@ scala> // should infer List[scala.collection.immutable.Seq[Nothing]] scala> // but reverted that for SI-5534. scala> val x = List(List(), Vector()) -x: List[scala.collection.immutable.Seq[Nothing] with scala.collection.AbstractSeq[Nothing]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq{def dropRight(n: Int): scala.collection.immutable.Seq[Any] with scala.collection.AbstractSeq[Any]; def takeRight(n: Int): scala.collection.immutable.Seq[Any] with scala.collection.AbstractSeq[Any]; def drop(n: Int): scala.collection.immutable.Seq[Any] with scala.collection.AbstractSeq[Any]; def take(n: Int): scala.collection.immutable.Seq[Any] with scala.collection.AbstractSeq[Any]; def slice(from: Int,until: Int): scala.collection.immutable.Seq[Any] with scala.collection.AbstractSeq[Any]}]; def dropRight(n: Int): scala.collection.immutable.Seq[Nothing] with scala.collection.Ab... +x: List[scala.collection.immutable.Seq[Nothing] with scala.collection.AbstractSeq[Nothing]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[Nothing] with scala.collection.AbstractSeq[Nothing]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[Nothing] with scala.collection.AbstractSeq[Nothing]{def dropRight(n: Int): scala.collection.immutable.Seq[Nothing] with scala.collection.AbstractSeq[Nothing]; def takeRight(n: Int): scala.collection.immutable.Seq[Nothing] with scala.collection.AbstractSeq[Nothing]; def drop(n: Int): scala.collecti... scala> scala> diff --git a/test/files/run/t2251.check b/test/files/run/t2251.check new file mode 100644 index 0000000000..55ad2a5857 --- /dev/null +++ b/test/files/run/t2251.check @@ -0,0 +1 @@ +Set(List(List(C), Stream(D, ?))) diff --git a/test/files/run/t2251.scala b/test/files/run/t2251.scala new file mode 100644 index 0000000000..00c5619b49 --- /dev/null +++ b/test/files/run/t2251.scala @@ -0,0 +1,19 @@ +class A +trait B[T <: B[T]] extends A +class C extends B[C] { override def toString = "C" } +class D extends B[D] { override def toString = "D" } + +class E { + val ys = List(List(new C), Stream(new D)) +} + +object Test { + def trav = List(List(), Stream()) + + def main(args: Array[String]): Unit = { + val f = (new E).ys _ + var xs: Set[List[_ <: Seq[B[_]]]] = Set() + xs += f() + println(xs) + } +} diff --git a/test/files/run/t2251b.check b/test/files/run/t2251b.check new file mode 100644 index 0000000000..42b0be457a --- /dev/null +++ b/test/files/run/t2251b.check @@ -0,0 +1,11 @@ +TypeTag[List[scala.collection.immutable.LinearSeq[B[_ >: D with C <: B[_ >: D with C <: A]]] with scala.collection.AbstractSeq[B[_ >: D with C <: B[_ >: D with C <: A]]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.LinearSeq with scala.collection.AbstractSeq]; def reverse: scala.collection.immutable.LinearSeq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.LinearSeq with scala.collection.AbstractSeq]; def reverse: scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def dropRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]}; def dropRight(n: Int): scala.collection.immutable.LinearSeq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.LinearSeq with scala.collection.AbstractSeq]; def reverse: scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def dropRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]}; def takeRight(n: Int): scala.collection.immutable.LinearSeq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.LinearSeq with scala.collection.AbstractSeq]; def reverse: scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def dropRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]}; def drop(n: Int): scala.collection.immutable.LinearSeq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.LinearSeq with scala.collection.AbstractSeq]; def reverse: scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def dropRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]}; def take(n: Int): scala.collection.immutable.LinearSeq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.LinearSeq with scala.collection.AbstractSeq]; def reverse: scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def dropRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]}; def slice(from: Int,until: Int): scala.collection.immutable.LinearSeq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.LinearSeq with scala.collection.AbstractSeq]; def reverse: scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def dropRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A]}; def splitAt(n: Int): (scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A], scala.collection.immutable.LinearSeq[A] with scala.collection.AbstractSeq[A])}]] +TypeTag[List[scala.collection.immutable.Iterable[B[_ >: F with E with D with C <: B[_ >: F with E with D with C <: A]]] with F with Int => Any]] +TypeTag[List[scala.collection.immutable.Seq[B[_ >: D with C <: B[_ >: D with C <: A]]] with scala.collection.AbstractSeq[B[_ >: D with C <: B[_ >: D with C <: A]]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def init: scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]}; def takeRight(n: Int): scala.collection.immutable.Seq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def init: scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]}; def drop(n: Int): scala.collection.immutable.Seq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def init: scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]}; def take(n: Int): scala.collection.immutable.Seq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def init: scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]}; def slice(from: Int,until: Int): scala.collection.immutable.Seq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def init: scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]}; def splitAt(n: Int): (scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A], scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]); def init: scala.collection.immutable.Seq[B[_ >: D with C <: A]] with scala.collection.AbstractSeq[B[_ >: D with C <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.immutable.Seq with scala.collection.AbstractSeq]; def dropRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def takeRight(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def drop(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def take(n: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def slice(from: Int,until: Int): scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]; def init: scala.collection.immutable.Seq[A] with scala.collection.AbstractSeq[A]}}]] +TypeTag[List[scala.collection.Set[_ >: G with F <: B[_ >: G with F <: B[_ >: G with F <: A]]]]] +TypeTag[List[scala.collection.Set[_ >: G with F <: B[_ >: G with F <: B[_ >: G with F <: A]]]]] +TypeTag[List[scala.collection.Set[_ >: G with F <: B[_ >: G with F <: B[_ >: G with F <: A]]]]] +TypeTag[List[Seq[B[_ >: G with F <: B[_ >: G with F <: A]]]]] +TypeTag[List[scala.collection.Map[_ >: F with C <: B[_ >: F with C <: B[_ >: F with C <: A]], B[_ >: G with D <: B[_ >: G with D <: A]]]]] +TypeTag[List[scala.collection.AbstractSeq[B[_ >: G with F <: B[_ >: G with F <: A]]] with scala.collection.LinearSeq[B[_ >: G with F <: B[_ >: G with F <: A]]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.AbstractSeq with scala.collection.LinearSeq]; def dropRight(n: Int): scala.collection.AbstractSeq[B[_ >: G with F <: A]] with scala.collection.LinearSeq[B[_ >: G with F <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.AbstractSeq with scala.collection.LinearSeq]; def dropRight(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def drop(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def take(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def slice(from: Int,until: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]}; def drop(n: Int): scala.collection.AbstractSeq[B[_ >: G with F <: A]] with scala.collection.LinearSeq[B[_ >: G with F <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.AbstractSeq with scala.collection.LinearSeq]; def dropRight(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def drop(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def take(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def slice(from: Int,until: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]}; def take(n: Int): scala.collection.AbstractSeq[B[_ >: G with F <: A]] with scala.collection.LinearSeq[B[_ >: G with F <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.AbstractSeq with scala.collection.LinearSeq]; def dropRight(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def drop(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def take(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def slice(from: Int,until: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]}; def slice(from: Int,until: Int): scala.collection.AbstractSeq[B[_ >: G with F <: A]] with scala.collection.LinearSeq[B[_ >: G with F <: A]]{def companion: scala.collection.generic.GenericCompanion[scala.collection.AbstractSeq with scala.collection.LinearSeq]; def dropRight(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def drop(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def take(n: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]; def slice(from: Int,until: Int): scala.collection.AbstractSeq[A] with scala.collection.LinearSeq[A]}}]] +TypeTag[List[Seq[B[_ >: G with F <: B[_ >: G with F <: A]]]]] +TypeTag[List[Seq[B[_ >: G with F <: B[_ >: G with F <: A]]]]] diff --git a/test/files/run/t2251b.scala b/test/files/run/t2251b.scala new file mode 100644 index 0000000000..b67b3aec1e --- /dev/null +++ b/test/files/run/t2251b.scala @@ -0,0 +1,48 @@ +class A +trait B[T <: B[T]] extends A +class B1[T <: B1[T]] extends B[T] +class C extends B[C] { override def toString = "C" } +class D extends B[D] { override def toString = "D" } +class E extends B[E] { override def toString = "E" } +class F extends B[F] { override def toString = "F" } +class G extends B1[G] { override def toString = "G" } + +object Test { + import scala.collection.{ mutable, immutable } + import scala.collection.immutable.{ Vector } + import scala.reflect.runtime.universe._ + def what[T: TypeTag](x: T) = println(typeTag[T]) + + def main(args: Array[String]): Unit = { + what(List(List(new C), Stream(new D))) + what(List(List(new C), Stream(new D), Vector(new E), Set(new F))) + what(List(immutable.Vector(new C), Stream(new D))) + what(List(collection.Set(new F), mutable.Set(new G))) + what(List(collection.Set(new F), immutable.Set(new G))) + what(List(mutable.Set(new F), immutable.Set(new G))) + what(List(mutable.Seq(new F), immutable.Seq(new G))) + what(List(mutable.Map(new C -> new D), immutable.Map(new F -> new G))) + what(List(mutable.MutableList(new F), immutable.List(new G))) + what(List(mutable.Seq(new F), collection.Seq(new G))) + what(List(mutable.LinearSeq(new F), collection.IndexedSeq(new G))) + } +} + + +// class D extends B[D] { override def toString = "D" } + + +// class E { +// val ys = List(List(new C), Stream(new D)) +// } + +// object Test { +// def trav = List(List(), Stream()) + +// def main(args: Array[String]): Unit = { +// val f = (new E).ys _ +// var xs: Set[List[_ <: Seq[B[_]]]] = Set() +// xs += f() +// println(xs) +// } +// } |