tests/contracts_null_parameter.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 class A
  16
  17         var null_attribut: nullable Int
  18
  19         fun set_null_attribut(i: nullable Int)
  20         is
  21                 ensure(null_attribut == i)
  22         do
  23                 null_attribut = i
  24         end
  25 end
  26
  27
  28 var a = new A
  29 a.set_null_attribut
  30 a.set_null_attribut(10)
  31 a.set_null_attribut