File: t7171.scala

package info (click to toggle)
scala 2.11.12-6
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 62,924 kB
  • sloc: javascript: 28,808; java: 13,415; xml: 3,135; sh: 1,620; python: 756; makefile: 38; awk: 36; ansic: 6
file content (22 lines) | stat: -rw-r--r-- 495 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
trait T {
  final case class A()

  // Was:
  // error: scrutinee is incompatible with pattern type;
  // found   : T.this.A
  // required: T#A
  def foo(a: T#A) = a match {
    case _: A => true; case _ => false
  }
}

object Test extends App {
  val t1 = new T {}
  val t2 = new T {}
  val a1 = new t1.A()
  val a2 = new t1.A()
  assert(t1.foo(a1))
  // as noted in the unchecked warning (also tested in the corresponding neg test),
  // the outer pointer isn't checked
  assert(t1.foo(a2))
}