tests/base_types_formal_and_virtual4.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import end
  16
  17 interface Object
  18 end
  19
  20 class A[E: Object]
  21         fun e: E is abstract
  22 end
  23
  24 class C[G: Object]
  25         type V: A[G]
  26         fun v: V is abstract
  27         fun test
  28         do
  29                 __debug__ type V : v
  30                 __debug__ type G : v.e
  31         end
  32 end
  33
  34 class B[F: A[X]]
  35         fun f: F is abstract
  36         fun test
  37         do
  38                 __debug__ type F : f
  39                 __debug__ type X : f.e
  40         end
  41 end
  42
  43 class X
  44 end