tests/test_ffi_c_accessor.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2011-2013 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 class A
  18         var r : String = "r"
  19         var w : String = "w"
  20         var rw : String = "rw"
  21
  22         fun print_all import String.to_cstring, r, rw `{
  23                 printf( "%s %s\n",
  24                         String_to_cstring( A_r( self ) ),
  25                         String_to_cstring( A_rw( self ) ) );
  26         `}
  27         fun modify import CString.to_s, w=, rw= `{
  28                 A_w__assign( self, CString_to_s( "w set from native" ) );
  29                 A_rw__assign( self, CString_to_s( "rw set from native" ) );
  30         `}
  31 end
  32
  33 class B
  34         fun print_and_modify( a : A ) import A.rw, A.rw=, String.to_cstring, CString.to_s `{
  35                 printf( "%s\n", String_to_cstring( A_rw( a ) ) );
  36                 A_rw__assign( a, CString_to_s( "set from native" ) );
  37                 printf( "%s\n", String_to_cstring( A_rw( a ) ) );
  38         `}
  39 end
  40
  41 var a = new A
  42 a.print_all
  43 a.modify
  44 a.print_all
  45
  46 var b = new B
  47 b.print_and_modify( a )