tests/base_gen_infinite.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 kernel
  16
  17 class G[E: Object]
  18         var sub: E
  19
  20         fun explode(i: Int): G[Object]
  21         do
  22                 if i<=0 then return self
  23                 var gge = new G[G[E]](self)
  24                 return gge.explode(i-1)
  25         end
  26
  27         fun count: Int
  28         do
  29                 var e: Object = self.sub
  30                 if e isa G[Object] then return e.count + 1 else return 1
  31         end
  32 end
  33
  34 var g1 = new G[Int](1)
  35 g1.count.output
  36 var g2 = new G[G[Int]](g1)
  37 g2.count.output
  38 var g3 = g1.explode(2)
  39 g3.count.output
  40 var g30 = g1.explode(29)
  41 g30.count.output