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author | Paul Phillips <paulp@improving.org> | 2013-01-31 22:44:12 -0800 |
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committer | Paul Phillips <paulp@improving.org> | 2013-01-31 22:44:12 -0800 |
commit | 110b54a575278cfdd04672b5ff170a68060ff245 (patch) | |
tree | dd8298895522d6fe5a679379bdcae2d0b1597d63 /test/files/neg | |
parent | d1b6d8b20f55d0b11102ced679b54ec5ea208f8f (diff) | |
parent | f6d90a8a2502c0e1f0ecf72a2fd4258c4f52ec84 (diff) | |
download | scala-110b54a575278cfdd04672b5ff170a68060ff245.tar.gz scala-110b54a575278cfdd04672b5ff170a68060ff245.tar.bz2 scala-110b54a575278cfdd04672b5ff170a68060ff245.zip |
Merge pull request #2000 from adriaanm/backport-pr-1873
[backport] SI-5378, unsoundness with type bounds in refinements.
Diffstat (limited to 'test/files/neg')
-rw-r--r-- | test/files/neg/t5378.check | 31 | ||||
-rw-r--r-- | test/files/neg/t5378.scala | 54 |
2 files changed, 85 insertions, 0 deletions
diff --git a/test/files/neg/t5378.check b/test/files/neg/t5378.check new file mode 100644 index 0000000000..c1460083f6 --- /dev/null +++ b/test/files/neg/t5378.check @@ -0,0 +1,31 @@ +t5378.scala:7: error: Type bound in structural refinement may not refer to an abstract type defined outside that refinement + def contains = new { def apply[T1 <: T](value: T1) = ??? } + ^ +t5378.scala:8: error: Type bound in structural refinement may not refer to an abstract type defined outside that refinement + def contains1 = new { def apply[T1 <: A1](value: T1) = ??? } + ^ +t5378.scala:9: error: Type bound in structural refinement may not refer to an abstract type defined outside that refinement + def contains2 = new { def apply[T1 <: A2](value: T1) = ??? } + ^ +t5378.scala:15: error: Type bound in structural refinement may not refer to an abstract type defined outside that refinement + new Bippy { def apply[T1 <: T](value: T1) = ??? } + ^ +t5378.scala:16: error: Type bound in structural refinement may not refer to an abstract type defined outside that refinement + new Bippy { def apply[T1 <: B1](value: T1) = ??? } + ^ +t5378.scala:17: error: Type bound in structural refinement may not refer to an abstract type defined outside that refinement + new Bippy { def apply[T1 <: B2](value: T1) = ??? } + ^ +t5378.scala:21: error: Type bound in structural refinement may not refer to an abstract type defined outside that refinement + def apply1[T1 <: B3](value: T1) = ??? + ^ +t5378.scala:23: error: Parameter type in structural refinement may not refer to an abstract type defined outside that refinement + def apply3(value: B3) = ??? + ^ +t5378.scala:28: error: Parameter type in structural refinement may not refer to an abstract type defined outside that refinement + def apply1(s: String)(x: Int)(value: T) = ??? + ^ +t5378.scala:29: error: Type bound in structural refinement may not refer to an abstract type defined outside that refinement + def apply2[T1 <: T](s: String)(x: Int)(value: T1) = ??? + ^ +10 errors found diff --git a/test/files/neg/t5378.scala b/test/files/neg/t5378.scala new file mode 100644 index 0000000000..fa6afa02be --- /dev/null +++ b/test/files/neg/t5378.scala @@ -0,0 +1,54 @@ +import scala.language.reflectiveCalls + +class Coll[+T] { + type A1 <: T + type A2 <: A1 + + def contains = new { def apply[T1 <: T](value: T1) = ??? } + def contains1 = new { def apply[T1 <: A1](value: T1) = ??? } + def contains2 = new { def apply[T1 <: A2](value: T1) = ??? } + def contains3 = { + trait Bippy { + type B1 <: T + type B2 <: B1 + } + new Bippy { def apply[T1 <: T](value: T1) = ??? } + new Bippy { def apply[T1 <: B1](value: T1) = ??? } + new Bippy { def apply[T1 <: B2](value: T1) = ??? } + new Bippy { + type B3 = B2 + type B4 = List[B2] + def apply1[T1 <: B3](value: T1) = ??? + def apply2[T1 <: B4](value: T1) = ??? + def apply3(value: B3) = ??? + def apply4(value: B4) = value.head + } + } + def contains4 = new { + def apply1(s: String)(x: Int)(value: T) = ??? + def apply2[T1 <: T](s: String)(x: Int)(value: T1) = ??? + } + def containsOk = { + trait Bippy { + type B1 <: AnyRef + type B2 <: B1 + } + new Bippy { def apply[T1 <: AnyRef](value: T1) = ??? } + new Bippy { type B1 = String ; def apply[T1 <: B1](value: T1) = ??? } + new Bippy { type B2 = String ; def apply[T1 <: B2](value: T1) = ??? } + } +} + +object Test { + def main(args: Array[String]): Unit = { + val xs = new Coll[List[String]] + val ys: Coll[Traversable[String]] = xs + + println(ys contains Nil) + // java.lang.NoSuchMethodException: Coll$$anon$1.apply(scala.collection.Traversable) + // at java.lang.Class.getMethod(Class.java:1605) + // at Test$.reflMethod$Method1(a.scala:14) + // at Test$.main(a.scala:14) + // at Test.main(a.scala) + } +} |