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author | odersky <odersky@gmail.com> | 2015-11-09 09:53:27 +0100 |
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committer | odersky <odersky@gmail.com> | 2015-11-09 09:53:27 +0100 |
commit | b3a1626d81385624f1db894a360288b85e8b3585 (patch) | |
tree | d796e885f95ba60b2367b619639d9cfd248b025d /tests/neg | |
parent | 3d5a2e2987066a1575db2874cf2c4721a1a66de1 (diff) | |
parent | 9767782a4766826ef903836609cb34c9bad2df61 (diff) | |
download | dotty-b3a1626d81385624f1db894a360288b85e8b3585.tar.gz dotty-b3a1626d81385624f1db894a360288b85e8b3585.tar.bz2 dotty-b3a1626d81385624f1db894a360288b85e8b3585.zip |
Merge pull request #927 from dotty-staging/stdlib-bounds
Drop checking that lower bound is a subtype of upper bound.
Diffstat (limited to 'tests/neg')
-rw-r--r-- | tests/neg/bounds.scala | 8 | ||||
-rw-r--r-- | tests/neg/t1279a.scala | 39 |
2 files changed, 8 insertions, 39 deletions
diff --git a/tests/neg/bounds.scala b/tests/neg/bounds.scala new file mode 100644 index 000000000..8d2cd8259 --- /dev/null +++ b/tests/neg/bounds.scala @@ -0,0 +1,8 @@ +object Test { + class C[B >: String <: Int](x: B) + def g[B >: String <: Int](x: B): Int = x + def main(args: Array[String]): Unit = { + g("foo") + new C("bar") + } +} diff --git a/tests/neg/t1279a.scala b/tests/neg/t1279a.scala deleted file mode 100644 index 6d768d435..000000000 --- a/tests/neg/t1279a.scala +++ /dev/null @@ -1,39 +0,0 @@ -// covariant linked list -abstract class M { - self: M => - - type T - final type selfType = M {type T <: self.T} - type actualSelfType >: self.type <: selfType // this no longer compiles because self.type is not a subtype of selfType - - def next: selfType - - // I don't understand why this doesn't compile, but that's a separate matter - // error: method all2 cannot be accessed in M.this.selfType - // because its instance type => Stream[M{type T <: M.this.selfType#T}] - // contains a malformed type: M.this.selfType#T - def all2: Stream[M {type T <: self.T}] = Stream.cons(self: actualSelfType, next.all2) - - // compiles successfully - def all3: Stream[M {type T <: self.T}] = all3Impl(self: actualSelfType) - private def all3Impl(first: M {type T <: self.T}): Stream[M {type T <: self.T}] = Stream.cons(first, all3Impl(first.next)) - - def all4: Stream[M {type T <: self.T}] = Unrelated.all4Impl[T](self: actualSelfType) -} - -// TODO!!! fix this bug for real, it compiles successfully, but weird types are inferred -object Unrelated { - // compiles successfully - def all4Impl[U](first: M {type T <: U}): Stream[M {type T <: U}] = Stream.cons(first, all4Impl[U](first.next)) - - // should compile successfully without the [U], but: - // def all4ImplFail[U](first: M {type T <: U}): Stream[M {type T <: U}] = Stream.cons(first, all4ImplFail(first.next)) - // - // test/files/pos/t1279a.scala:31: error: type mismatch; - // found : first.selfType - // (which expands to) M{type T <: first.T} - // required: M{type T <: Nothing} - // def all4ImplFail[U](first: M {type T <: U}): Stream[M {type T <: U}] = Stream.cons(first, all4ImplFail(first.next)) - // ^ - // one error found -} |