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Diffstat (limited to 'test/files/neg/variances-refinement.scala')
-rw-r--r-- | test/files/neg/variances-refinement.scala | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/test/files/neg/variances-refinement.scala b/test/files/neg/variances-refinement.scala new file mode 100644 index 0000000000..6bfd336ce0 --- /dev/null +++ b/test/files/neg/variances-refinement.scala @@ -0,0 +1,40 @@ +trait Trait[-A, +B, C] { + def ok() = { // ok + object O { + private def f0(x: A): A = ??? + def f1(x: A): B = ??? + def f2(x: A): C = ??? + private def f3(x: B): A = ??? + private def f4(x: B): B = ??? + private def f5(x: B): C = ??? + private def f6(x: C): A = ??? + def f7(x: C): B = ??? + def f8(x: C): C = ??? + } + O + } + + def fail1() = { object O { def f0(x: A): A = ??? } ; O } // fail + def fail2() = { object O { def f0(x: B): A = ??? } ; O } // fail + def fail3() = { object O { def f0(x: B): B = ??? } ; O } // fail + def fail4() = { object O { def f0(x: B): C = ??? } ; O } // fail + def fail5() = { object O { def f0(x: C): A = ??? } ; O } // fail + + def fail6() = { // fail + trait O0 { + def f0(x: A): A = ??? + def f1(x: A): B = ??? + def f2(x: A): C = ??? + } + object O1 extends O0 + O1 + } + def fail7() = { // fail + trait O0 { + def f0(x: A): A = ??? + def f1(x: A): B = ??? + def f2(x: A): C = ??? + } + new O0 { } + } +} |