src/ffi/c.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2012-2014 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 # Support for nesting C code within a Nit program using its FFI
  18 module c
  19
  20 import ffi_base
  21 import light_c
  22
  23 redef class CLanguage
  24         redef fun compile_callback(callback, mmodule, mainmodule, ecc)
  25         do
  26                 callback.compile_callback_to_c(mainmodule, ecc)
  27         end
  28 end
  29
  30 redef class NitniCallback
  31         fun compile_callback_to_c(mmodule: MModule, ffi_ccu: CCompilationUnit) do end
  32 end
  33
  34 redef class MExplicitCall
  35         redef fun compile_callback_to_c(mmodule, ffi_ccu)
  36         do
  37                 var mproperty = mproperty.as(MMethod)
  38
  39                 var full_cname = mproperty.build_cname(recv_mtype, mmodule, null, long_signature)
  40                 var friendly_cname = mproperty.build_cname(recv_mtype, mmodule, null, short_signature)
  41                 ffi_ccu.body_decl.add("#define {friendly_cname} {full_cname}\n")
  42         end
  43 end