tests/test_equal_nil.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2004-2008 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
  18 class A
  19         init do end
  20 end
  21
  22 var a: nullable A = new A
  23 var b: nullable A = null
  24 if a == null then printn(0) else printn(1)
  25 if a is null then printn(0) else printn(1)
  26 #if b == null then printn(1) else printn(0)
  27 if b is null then printn(1) else printn(0)
  28 if a == a then printn(1) else printn(0)
  29 if a is a then printn(1) else printn(0)
  30 #if b == b then printn(1) else printn(0)
  31 if b is b then printn(1) else printn(0)
  32 if a == b then printn(0) else printn(1)
  33 if a is b then printn(0) else printn(1)
  34 #if b == a then printn(0) else printn(1)
  35 if b is a then printn(0) else printn(1)
  36