tests/test_ffi_c_module_blocks.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 core::kernel
  16
  17 in "C Header" `{
  18         // C types of public Nit classes must be in the C header block
  19         struct pub {long x;};
  20 `}
  21
  22 in "C" `{
  23         // C types of private Nit classes can be in the C body block
  24         struct priv {long x;};
  25 `}
  26
  27 extern class Pub `{ struct pub* `}
  28         new `{
  29                 struct pub *res = malloc(sizeof(struct pub));
  30                 res->x = 1234;
  31                 return res;
  32         `}
  33
  34         fun foo `{ printf("%ld\n", self->x); `}
  35 end
  36
  37 private extern class Priv `{ struct priv* `}
  38         new `{
  39                 struct priv *res = malloc(sizeof(struct priv));
  40                 res->x = 2345;
  41                 return res;
  42         `}
  43
  44         fun foo `{ printf("%ld\n", self->x); `}
  45 end
  46
  47 (new Pub).foo
  48 (new Priv).foo