diff options
author | Paul Phillips <paulp@improving.org> | 2010-07-02 03:14:10 +0000 |
---|---|---|
committer | Paul Phillips <paulp@improving.org> | 2010-07-02 03:14:10 +0000 |
commit | f911b5da551b766a59b9ede643a5a7d2bc7e3c78 (patch) | |
tree | aaa1adf96b70df273fac1429d2a3b542b7a7cdda /test/files | |
parent | 57b7e442af26e07dc2411f46b0a8103dfe054101 (diff) | |
download | scala-f911b5da551b766a59b9ede643a5a7d2bc7e3c78.tar.gz scala-f911b5da551b766a59b9ede643a5a7d2bc7e3c78.tar.bz2 scala-f911b5da551b766a59b9ede643a5a7d2bc7e3c78.zip |
Test cases close #13, #95. No review.
(That's right, multiple two digit tickets.)
Diffstat (limited to 'test/files')
-rw-r--r-- | test/files/pos/bug0013.scala | 31 | ||||
-rw-r--r-- | test/files/pos/bug0095.scala | 15 |
2 files changed, 46 insertions, 0 deletions
diff --git a/test/files/pos/bug0013.scala b/test/files/pos/bug0013.scala new file mode 100644 index 0000000000..999a2ab61c --- /dev/null +++ b/test/files/pos/bug0013.scala @@ -0,0 +1,31 @@ +// covariant linked list +abstract class M { self => + + type T + final type selfType = M {type T <: self.T} + type actualSelfType >: self.type <: 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) +} + +object Unrelated { + def all4Impl[U](first: M {type T <: U}): Stream[M {type T <: U}] = Stream.cons(first, all4Impl(first.next)) + + // compiles successfully + // def all4Impl[U](first: M {type T <: U}): Stream[M {type T <: U}] = Stream.cons(first, all4Impl[U](first.next)) +}
\ No newline at end of file diff --git a/test/files/pos/bug0095.scala b/test/files/pos/bug0095.scala new file mode 100644 index 0000000000..71386cf5c7 --- /dev/null +++ b/test/files/pos/bug0095.scala @@ -0,0 +1,15 @@ +class ParseResult[+T] +case class Success[+T](t: T) extends ParseResult[T] + +abstract class Nonterminal[Output] { + + type SubNonterminal = Nonterminal[T] forSome { type T <: Output } + + def parse: ParseResult[Output] + + def parse1(nts: List[SubNonterminal]): ParseResult[Output] = + nts match { + case nt::nts => nt.parse match { case Success(so) => Success(so) } + case Nil => throw new Error + } +} |