tests/contracts_inheritance.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 # Check usage of contract on a diamond inheritance
  16
  17 class ArrayInt
  18         super Array[Int]
  19
  20         fun toto(e: Int)
  21         do
  22                 print "toto ArrayInt"
  23         end
  24 end
  25
  26
  27 class MyArrayInt
  28         super ArrayInt
  29
  30         redef fun toto(e)
  31         is
  32                 ensures(e == 12)
  33         do
  34                 print "toto MyArrayInt"
  35                 super e
  36         end
  37 end
  38
  39 class MyArrayInt2
  40         super ArrayInt
  41
  42         redef fun toto(e)
  43         is
  44                 ensures(e == 11)
  45         do
  46                 print "toto MyArrayInt2"
  47                 super e
  48                 print "Good"
  49         end
  50 end
  51
  52 class MySubArray
  53         super MyArrayInt
  54         super MyArrayInt2
  55 end
  56
  57 var test = new MySubArray
  58 test.toto(11)# fail contract on MyArrayInt define e == 12