codegen/valainterfaceregisterfunction.vala

   1 /* valainterfaceregisterfunction.vala
   2  *
   3  * Copyright (C) 2006-2011  Jürg Billeter
   4  * Copyright (C) 2006-2007  Raffaele Sandrini
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  19  *
  20  * Author:
  21  *      Jürg Billeter <j@bitron.ch>
  22  *      Raffaele Sandrini <raffaele@sandrini.ch>
  23  */
  24
  25 using GLib;
  26
  27 /**
  28  * C function to register an interface at runtime.
  29  */
  30 public class Vala.InterfaceRegisterFunction : TypeRegisterFunction {
  31         /**
  32          * Specifies the interface to be registered.
  33          */
  34         public weak Interface interface_reference { get; set; }
  35
  36         public InterfaceRegisterFunction (Interface iface) {
  37                 interface_reference = iface;
  38         }
  39
  40         public override TypeSymbol get_type_declaration () {
  41                 return interface_reference;
  42         }
  43
  44         public override string get_type_struct_name () {
  45                 return get_ccode_type_name (interface_reference);
  46         }
  47
  48         public override string get_base_init_func_name () {
  49                 return "NULL";
  50         }
  51
  52         public override string get_class_finalize_func_name () {
  53                 return "NULL";
  54         }
  55
  56         public override string get_base_finalize_func_name () {
  57                 return "NULL";
  58         }
  59
  60         public override string get_class_init_func_name () {
  61                 return "%s_default_init".printf (get_ccode_lower_case_name (interface_reference));
  62         }
  63
  64         public override string get_instance_struct_size () {
  65                 return "0";
  66         }
  67
  68         public override string get_instance_init_func_name () {
  69                 return "NULL";
  70         }
  71
  72         public override string get_parent_type_name () {
  73                 return "G_TYPE_INTERFACE";
  74         }
  75
  76         public override SymbolAccessibility get_accessibility () {
  77                 return interface_reference.access;
  78         }
  79
  80         public override void get_type_interface_init_statements (CodeContext context, CCodeBlock block, bool plugin) {
  81                 /* register all prerequisites */
  82                 foreach (DataType prereq_ref in interface_reference.get_prerequisites ()) {
  83                         var prereq = prereq_ref.data_type;
  84
  85                         var func = new CCodeFunctionCall (new CCodeIdentifier ("g_type_interface_add_prerequisite"));
  86                         func.add_argument (new CCodeIdentifier ("%s_type_id".printf (get_ccode_lower_case_name (interface_reference))));
  87                         func.add_argument (new CCodeIdentifier (get_ccode_type_id (prereq)));
  88
  89                         block.add_statement (new CCodeExpressionStatement (func));
  90                 }
  91
  92                 ((CCodeBaseModule) context.codegen).register_dbus_info (block, interface_reference);
  93         }
  94 }