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Diffstat (limited to 'test/pos/test5.scala')
-rw-r--r-- | test/pos/test5.scala | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/test/pos/test5.scala b/test/pos/test5.scala new file mode 100644 index 0000000000..4851e5e6a2 --- /dev/null +++ b/test/pos/test5.scala @@ -0,0 +1,68 @@ +import scala._; + +module test { + + trait F[If] {} + + def f[Jf](h: Jf):F[Jf] = f@[Jf](h); + + trait G[Ig] {} + + def g[Jg](h: Jg):G[Jg] = g@[Jg](h); + + class M[P]() { + class I[X]() { + // Methods to check the type X and P as seen from instances of I + def chk_ix(x: X): Unit = (); + def chk_ip(p: P): Unit {} + + // Value with type X as seen from instances of I + def val_ix: X = val_ix; + } + + val i:I[G[P]] = null; + + // Values with types P and i.X as seen from instances of M + def val_mp: P = val_mp; + def val_mix: G[P] = g@[P](val_mp); + } + + class N[Q]() extends M[F[Q]]() { + val j:J[G[Q]] = null; + + class J[Y]() extends I[G[Y]]() { + // Values with types Y and X as seen from instances of J + def val_jy: Y = val_jy; + def val_jx: G[Y] = g@[Y](val_jy); + + // Check type P + chk_ip(val_mp); + chk_ip(val_np); + } + + // Values with types Q, X.P, i.X, j.Y and j.X as seen from instances of N + def val_nq: Q = val_nq; + def val_np: F[Q] = f@[Q](val_nq); + def val_nix: G[F[Q]] = g@[F[Q]](val_np); + def val_njy: G[Q] = g@[Q](val_nq); + def val_njx: G[G[Q]] = g@[G[Q]](val_njy); + + // Check type i.P + i.chk_ip(val_mp); + i.chk_ip(val_np); + + // Check type j.P + j.chk_ip(val_mp); + j.chk_ip(val_np); + + // Check type i.X + i.chk_ix(i.val_ix); + i.chk_ix(val_mix); + i.chk_ix(val_nix); + + // Check j.X + j.chk_ix(j.val_ix); + j.chk_ix(j.val_jx); + j.chk_ix(val_njx); + } +}
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