diff options
Diffstat (limited to 'test/pos/test5refine.scala')
-rw-r--r-- | test/pos/test5refine.scala | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/test/pos/test5refine.scala b/test/pos/test5refine.scala new file mode 100644 index 0000000000..1097c6cff7 --- /dev/null +++ b/test/pos/test5refine.scala @@ -0,0 +1,75 @@ +import scala._; + +module test { + + abstract trait F { type If; } + + def f[Jf](h: Jf):F with { type If = Jf } = f@[Jf](h); + + abstract trait G { type Ig; } + + def g[Jg](h: Jg):G with { type Ig = Jg } = g@[Jg](h); + + abstract class M() { + type P; + abstract class I() { + type 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 with { type X = G with { type Ig = 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 with { type Ig = P } = g@[P](val_mp); + } + + abstract class N() extends M() { + type Q; + type P = F with { type If = Q }; + val j:J with { type Y = G with { type Ig = Q } } = null; + + abstract class J() extends I() { + type Y; + type X = G with { type Ig = Y; }; + // Values with types Y and X as seen from instances of J + def val_jy: Y = val_jy; + def val_jx: G with { type Ig = 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 with { type If = Q } = f@[Q](val_nq); + def val_nix: G with { type Ig = F with { type If = Q } } = g@[F with { type If = Q }](val_np); + def val_njy: G with { type Ig = Q; } = g@[Q](val_nq); + def val_njx: G with { type Ig = G with { type Ig = Q }} = g@[G with { type Ig = 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); + } +}
\ No newline at end of file |