tests/test_ni_cast_simple.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2011 Alexis Laferrière <alexis.laf@xymus.net>
   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 fun s_to_o( s : String ) : Object is extern import String as ( Object )
  18
  19 fun n_to_nn( s : String ) : nullable String is extern import String as nullable
  20 fun nn_to_n( s : nullable String ) : String is extern import nullable String as not nullable
  21
  22 var o = s_to_o( "foo" )
  23 var nn = n_to_nn( "bar" )
  24 var n = nn_to_n( "baz" )
  25
  26 print o
  27
  28 if nn == null
  29 then
  30     print "null (not good)"
  31 else
  32     print nn
  33 end
  34
  35 print n