tests/test_ffi_c_simple.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2013 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 module test_ffi_c_simple
  18
  19 in "C header" `{
  20         #include <stdio.h>
  21 `}
  22
  23 in "C body" `{
  24         int f( void ) {
  25                 printf( "in C!\n" );
  26                 return 42;
  27         }
  28 `}
  29
  30 class A
  31         fun foo : Int in "C" `{
  32                 printf( "C implementation!\n" );
  33                 return f();
  34         `}
  35 end
  36
  37 fun bar : Float is extern `{
  38         return 5.12345;
  39 `}
  40
  41 print bar
  42
  43 var a = new A
  44 print a.foo
  45