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author | Adriaan Moors <adriaan.moors@epfl.ch> | 2009-10-06 10:44:57 +0000 |
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committer | Adriaan Moors <adriaan.moors@epfl.ch> | 2009-10-06 10:44:57 +0000 |
commit | 7f2eaea3e7f08c6fcb53b6c7d7f35bbb4a82ebf5 (patch) | |
tree | a4fdb4b6811463870547ca93ab02b9135db4faab /test/pending | |
parent | 5da791d8c4987d4fa532985d451e3a9369a85556 (diff) | |
download | scala-7f2eaea3e7f08c6fcb53b6c7d7f35bbb4a82ebf5.tar.gz scala-7f2eaea3e7f08c6fcb53b6c7d7f35bbb4a82ebf5.tar.bz2 scala-7f2eaea3e7f08c6fcb53b6c7d7f35bbb4a82ebf5.zip |
fixed #2421: checkBounds in typedImplicit0 to f...
fixed #2421: checkBounds in typedImplicit0 to filter out implicit
searchresults that result in nonsenical type instantiations
Diffstat (limited to 'test/pending')
-rw-r--r-- | test/pending/pos/t2421.scala | 14 | ||||
-rw-r--r-- | test/pending/pos/t2421_delitedsl.scala | 37 |
2 files changed, 0 insertions, 51 deletions
diff --git a/test/pending/pos/t2421.scala b/test/pending/pos/t2421.scala deleted file mode 100644 index 0d01be29fc..0000000000 --- a/test/pending/pos/t2421.scala +++ /dev/null @@ -1,14 +0,0 @@ -object Test { - abstract class <~<[-From, +To] extends (From => To) - implicit def trivial[A]: A <~< A = error("") - - - trait Forcible[T] - implicit val forcibleInt: (Int <~< Forcible[Int]) = error("") - - def headProxy[P <: Forcible[Int]](implicit w: Int <~< P): P = error("") - - headProxy - // trivial[Int] should not be considered a valid implicit, since w would have type Int <~< Int, - // and headProxy's type parameter P cannot be instantiated to Int -}
\ No newline at end of file diff --git a/test/pending/pos/t2421_delitedsl.scala b/test/pending/pos/t2421_delitedsl.scala deleted file mode 100644 index a05887023a..0000000000 --- a/test/pending/pos/t2421_delitedsl.scala +++ /dev/null @@ -1,37 +0,0 @@ -trait DeliteDSL { - abstract class <~<[-From, +To] extends (From => To) - implicit def trivial[A]: A <~< A = new (A <~< A) {def apply(x: A) = x} - - trait Forcible[T] - object Forcible { - def factory[T](f: T => Forcible[T]) = new (T <~< Forcible[T]){def apply(x: T) = f(x)} - } - - case class DeliteInt(x: Int) extends Forcible[Int] - implicit val forcibleInt = Forcible.factory(DeliteInt(_: Int)) - - import scala.collection.Traversable - class DeliteCollection[T](val xs: Traversable[T]) { - // must use existential in bound of P, instead of T itself, because we cannot both have: - // Test.x below: DeliteCollection[T=Int] -> P=DeliteInt <: Forcible[T=Int], as T=Int <~< P=DeliteInt - // Test.xAlready below: DeliteCollection[T=DeliteInt] -> P=DeliteInt <: Forcible[T=DeliteInt], as T=DeliteInt <~< P=DeliteInt - // this would required DeliteInt <: Forcible[Int] with Forcible[DeliteInt] - - def headProxy[P <: Forcible[_]](implicit w: T <~< P): P = xs.head - } - // If T is already a proxy (it is forcible), the compiler should use - // forcibleIdentity to deduce that P=T. If T is Int, the compiler - // should use intToForcible to deduce that P=DeliteInt. - // - // Without this feature, the user must write 'xs.proxyOfFirst[DeliteInt]', - // with the feature they can write 'xs.proxyOfFirst', which is shorter and - // avoids exposing internal DELITE types to the world. - - object Test { - val x = new DeliteCollection(List(1,2,3)).headProxy - // inferred: val x: Forcible[Int] = new DeliteCollection[Int](List.apply[Int](1, 2, 3)).headProxy[Forcible[Int]](forcibleInt); - - val xAlready = new DeliteCollection(List(DeliteInt(1),DeliteInt(2),DeliteInt(3))).headProxy - // inferred: val xAlready: DeliteInt = new DeliteCollection[DeliteInt](List.apply[DeliteInt](DeliteInt(1), DeliteInt(2), DeliteInt(3))).headProxy[DeliteInt](trivial[DeliteInt]); - } -}
\ No newline at end of file |