tests/base_var_null2.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 fun test(i: Int)
  18 do
  19         var a = null #alt1#var a: nullable Int = null #alt2#var a: nullable Object = null
  20         if i == 1 then a = 1
  21         if i == 2 then a = 2
  22         #1alt3#if i == 3 then a = '3'
  23         if a == null then 0.output else a.output
  24         '\n'.output
  25 end
  26
  27 test(1)
  28 test(2)
  29 test(3)