tests/base_as_notnull.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2005-2008 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 import kernel
  18
  19 class A
  20         var _i: Int
  21         redef fun output do _i.output
  22         init(i: Int) do _i = i
  23 end
  24
  25 class B
  26 special A
  27 end
  28
  29 fun outa(a: A) do a.output
  30 fun outb(b: B) do b.output
  31
  32 var a: A = new A(1)
  33 var ab: A = new B(2)
  34 var b: B = new B(3)
  35 var na: nullable A = new A(4)
  36 var nab: nullable A = new B(5)
  37 var nb: nullable B = new B(6)
  38 var nan: nullable A = null
  39 var nbn: nullable B = null
  40
  41 outa(a.as(not null))
  42 outa(ab.as(not null))
  43 outa(b.as(not null))
  44 outa(na.as(not null))
  45 outa(nab.as(not null))
  46 outa(nb.as(not null))
  47
  48 '\n'.output
  49
  50 #alt1#outb(a.as(not null))
  51 #alt2#outb(ab.as(not null))
  52 outb(b.as(not null))
  53 #alt3#outb(na.as(not null))
  54 #alt4#outb(nab.as(not null))
  55 outb(nb.as(not null))
  56
  57 '\n'.output
  58
  59 #alt5#nan.as(not null).output
  60 #alt6#nbn.as(not null).output
  61 #alt7#null.as(not null).output