examples/callback_chimpanze.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2013 Matthieu Lucas <lucasmatthieu@gmail.com>
   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 # This sample has been implemented to show you how simple is it to play
  18 # with native callbacks (C) through an high level with NIT program.
  19
  20 module callback_chimpanze
  21 import callback_monkey
  22
  23 class Chimpanze
  24         super MonkeyActionCallable
  25
  26         fun create
  27         do
  28                 var monkey = new Monkey
  29                 print "Hum, I'm sleeping ..."
  30                 # Invoking method which will take some time to compute, and
  31                 # will be back in wokeUp method with information.
  32                 # - Callback method defined in MonkeyActionCallable Interface
  33                 monkey.wokeUpAction(self, "Hey, I'm awake.")
  34         end
  35
  36         # Inherit callback method, defined by MonkeyActionCallable interface
  37         # - Back of wokeUpAction method
  38         redef fun wokeUp( sender:Monkey, message:Object )
  39         do
  40                 print message
  41         end
  42 end
  43
  44 var m = new Chimpanze
  45 m.create