tests/base_adaptive_loop_call.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 core::kernel
  16
  17 class O
  18         fun foo: O do
  19                 0.output
  20                 return new B
  21         end
  22 end
  23
  24 class A
  25         super O
  26         redef fun foo: B do
  27                 1.output
  28                 return new B
  29         end
  30         fun bar: B do
  31                 10.output
  32                 return new B
  33         end
  34 end
  35
  36 class B
  37         super O
  38         redef fun foo: C do
  39                 2.output
  40                 return new C
  41         end
  42         fun bar: C do
  43                 20.output
  44                 return new C
  45         end
  46 end
  47
  48 class C
  49         super O
  50 end
  51
  52 var a: O #alt1# var a
  53
  54 a = new A
  55 var i = 0
  56 while i < 4 do
  57         a = a.foo #alt2# a = a.bar
  58         i += 1
  59 end