/* -*- mode: C; c-file-style: "gnu" -*- */

 /* dbus-gsignature.c Mapping from dbus type signatures to GType

  *

  * Copyright (C) 2005 Red Hat, Inc.

  *

  * Licensed under the Academic Free License version 2.1

  * 

  * This program is free software; you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation; either version 2 of the License, or

  * (at your option) any later version.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  * 

  * You should have received a copy of the GNU General Public License

  * along with this program; if not, write to the Free Software

  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  *

  */

 #include "config.h"

 #include "dbus-gtest.h"

 #include "dbus-gsignature.h"

 #include "dbus-gvalue-utils.h"

 #include <string.h>

 #include <glib.h>

 #define MAP_BASIC(d_t, g_t)                     \

     case DBUS_TYPE_##d_t:                       \

       return G_TYPE_##g_t;

 static GType

 typecode_to_gtype (int type)

 {

   switch (type)

     {

       MAP_BASIC (BOOLEAN, BOOLEAN);

       MAP_BASIC (BYTE,    UCHAR);

       MAP_BASIC (INT16,   INT);

       MAP_BASIC (INT32,   INT);

       MAP_BASIC (UINT16,  UINT);

       MAP_BASIC (UINT32,  UINT);

       MAP_BASIC (INT64,   INT64);

       MAP_BASIC (UINT64,  UINT64);

       MAP_BASIC (DOUBLE,  DOUBLE);

       MAP_BASIC (STRING,  STRING);

     default:

       return G_TYPE_INVALID;

     }

 }

 #undef MAP_BASIC

 static gboolean

 dbus_typecode_maps_to_basic (int typecode)

 {

   return typecode_to_gtype (typecode) != G_TYPE_INVALID;

 }

 GType

 _dbus_gtype_from_basic_typecode (int typecode)

 {

   g_assert (dbus_type_is_basic (typecode));

   g_assert (dbus_typecode_maps_to_basic (typecode));

   return typecode_to_gtype (typecode);

 }

 static GType

 signature_iter_to_g_type_dict (const DBusSignatureIter *subiter, gboolean is_client)

 {

   DBusSignatureIter iter;

   GType key_gtype;

   GType value_gtype;

   g_assert (dbus_signature_iter_get_current_type (subiter) == DBUS_TYPE_DICT_ENTRY);

   dbus_signature_iter_recurse (subiter, &iter);

   key_gtype = _dbus_gtype_from_signature_iter (&iter, is_client); 

   if (key_gtype == G_TYPE_INVALID)

     return G_TYPE_INVALID;

   dbus_signature_iter_next (&iter);

   value_gtype = _dbus_gtype_from_signature_iter (&iter, is_client);

   if (value_gtype == G_TYPE_INVALID)

     return G_TYPE_INVALID;

   if (!_dbus_gtype_is_valid_hash_key (key_gtype)

       || !_dbus_gtype_is_valid_hash_value (value_gtype))

     /* Later we need to return DBUS_TYPE_G_VALUE */

     return G_TYPE_INVALID; 

   return dbus_g_type_get_map ("GHashTable", key_gtype, value_gtype);

 }

 static GType

 signature_iter_to_g_type_array (DBusSignatureIter *iter, gboolean is_client)

 {

   GType elt_gtype;

   elt_gtype = _dbus_gtype_from_signature_iter (iter, is_client);

   if (elt_gtype == G_TYPE_INVALID)

     return G_TYPE_INVALID;

   if (elt_gtype == G_TYPE_OBJECT)

     return DBUS_TYPE_G_OBJECT_ARRAY;

   if (elt_gtype == G_TYPE_STRING)

     return G_TYPE_STRV;

   if (_dbus_g_type_is_fixed (elt_gtype))

     return dbus_g_type_get_collection ("GArray", elt_gtype);

   else if (g_type_is_a (elt_gtype, G_TYPE_OBJECT)

 	   || g_type_is_a (elt_gtype, G_TYPE_BOXED))

     return dbus_g_type_get_collection ("GPtrArray", elt_gtype);

   /* Later we need to return DBUS_TYPE_G_VALUE */

   return G_TYPE_INVALID; 

 }

 static GType

 signature_iter_to_g_type_struct (DBusSignatureIter *iter, gboolean is_client)

 {

   GArray *types;

   GType ret;

   types = g_array_new (FALSE, FALSE, sizeof (GType));

   do

     {

       GType curtype;

       curtype = _dbus_gtype_from_signature_iter (iter, is_client);

       g_array_append_val (types, curtype);

     }

   while (dbus_signature_iter_next (iter));

   ret = dbus_g_type_get_structv ("GValueArray", types->len, (GType*) types->data);

   g_array_free (types, TRUE);

   return ret;

 }

 GType

 _dbus_gtype_from_signature_iter (DBusSignatureIter *iter, gboolean is_client)

 {

   int current_type;

   current_type = dbus_signature_iter_get_current_type (iter);

   /* TODO: handle type 0? */

   if (dbus_typecode_maps_to_basic (current_type))

     return _dbus_gtype_from_basic_typecode (current_type);

   else if (current_type == DBUS_TYPE_OBJECT_PATH)

     return DBUS_TYPE_G_OBJECT_PATH;

   else

     {

       DBusSignatureIter subiter;

       g_assert (dbus_type_is_container (current_type));

       if (current_type == DBUS_TYPE_VARIANT)

 	return G_TYPE_VALUE;

       dbus_signature_iter_recurse (iter, &subiter);

       if (current_type == DBUS_TYPE_ARRAY)

 	{

 	  int elt_type = dbus_signature_iter_get_current_type (&subiter);

 	  if (elt_type == DBUS_TYPE_DICT_ENTRY)

 	    return signature_iter_to_g_type_dict (&subiter, is_client);

 	  else 

 	    return signature_iter_to_g_type_array (&subiter, is_client);

 	}

       else if (current_type == DBUS_TYPE_STRUCT)

         {

           return signature_iter_to_g_type_struct (&subiter, is_client);

         }

       else

 	{

 	  g_assert_not_reached ();

 	  return G_TYPE_INVALID;

 	}

     }

 }

 GType

 _dbus_gtype_from_signature (const char *signature, gboolean is_client)

 {

   DBusSignatureIter iter;

   dbus_signature_iter_init (&iter, signature);

   return _dbus_gtype_from_signature_iter (&iter, is_client);

 }

 GArray *

 _dbus_gtypes_from_arg_signature (const char *argsig, gboolean is_client)

 {

   GArray *ret;

   int current_type;

   DBusSignatureIter sigiter;

   ret = g_array_new (FALSE, FALSE, sizeof (GType));

   dbus_signature_iter_init (&sigiter, argsig);

   while ((current_type = dbus_signature_iter_get_current_type (&sigiter)) != DBUS_TYPE_INVALID)

     {

       GType curtype;

       curtype = _dbus_gtype_from_signature_iter (&sigiter, is_client);

       g_array_append_val (ret, curtype);

       dbus_signature_iter_next (&sigiter);

     }

   return ret;

 }