tests/rterror_cov_param.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2006-2008 Jean Privat <jean@pryen.org>
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 import kernel
  18 class A
  19         fun bar(a: Object)
  20         do
  21                 a.output
  22         end
  23         redef fun output
  24         do
  25                 'A'.output
  26         end
  27
  28         fun ret_test
  29         # see rterror_cov_ret
  30         do
  31                 ret.output
  32         end
  33         fun ret: A
  34         do
  35                 return self
  36         end
  37
  38         init do end
  39 end
  40
  41 class B
  42 special A
  43         redef fun bar(a: B)
  44         do
  45                 a.output
  46         end
  47         redef fun output
  48         do
  49                 'B'.output
  50         end
  51         redef fun ret: B
  52         do
  53                 return self
  54         end
  55
  56         init do end
  57 end
  58
  59 var a = new A
  60 var b = a
  61 b = new B
  62 b.bar(5)