tests/base_primitive_null.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2009 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
  19 class A
  20         var _i: nullable Int = null
  21         var _b: nullable Bool = null
  22         var _c: nullable Char = null
  23
  24         init
  25         do
  26                 var o: nullable Object
  27                 'I'.output
  28                 '\n'.output
  29                 (_i == null).output
  30                 (not _i == 0).output
  31                 o = _i
  32                 (o == null).output
  33                 (not o == 0).output
  34                 #alt1#_i.output
  35
  36                 'B'.output
  37                 '\n'.output
  38                 (_b == null).output
  39                 (not _b == false).output
  40                 o = _b
  41                 (o == null).output
  42                 (not o == false).output
  43                 #alt2#_b.output
  44
  45                 'C'.output
  46                 '\n'.output
  47                 (_c == null).output
  48                 (not _c == '\0').output
  49                 o = _c
  50                 (o == null).output
  51                 (not o == '\0').output
  52                 #alt3#_c.ascii.output
  53         end
  54 end
  55
  56 var a = new A