tests/gobject/dynamictype.c

   1 /* GObject - GLib Type, Object, Parameter and Signal Library
   2  * Copyright (C) 2001, 2003 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General
  15  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #undef  G_LOG_DOMAIN
  19 #define G_LOG_DOMAIN "TestDynamicType"
  20
  21 #undef G_DISABLE_ASSERT
  22 #undef G_DISABLE_CHECKS
  23 #undef G_DISABLE_CAST_CHECKS
  24
  25 #include <glib-object.h>
  26
  27 #include "testcommon.h"
  28 #include "testmodule.h"
  29
  30 /* This test tests the macros for defining dynamic types.
  31  */
  32
  33 static gboolean loaded = FALSE;
  34
  35 struct _TestIfaceClass
  36 {
  37   GTypeInterface base_iface;
  38   guint val;
  39 };
  40
  41 static GType test_iface_get_type (void);
  42 #define TEST_TYPE_IFACE           (test_iface_get_type ())
  43 #define TEST_IFACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), TEST_TYPE_IFACE, TestIfaceClass))
  44 typedef struct _TestIface      TestIface;
  45 typedef struct _TestIfaceClass TestIfaceClass;
  46
  47 static void test_iface_base_init    (TestIfaceClass *iface);
  48 static void test_iface_default_init (TestIfaceClass *iface, gpointer class_data);
  49
  50 static DEFINE_IFACE(TestIface, test_iface, test_iface_base_init, test_iface_default_init)
  51
  52 static void
  53 test_iface_default_init (TestIfaceClass *iface,
  54                          gpointer        class_data)
  55 {
  56 }
  57
  58 static void
  59 test_iface_base_init (TestIfaceClass *iface)
  60 {
  61 }
  62
  63 GType dynamic_object_get_type (void);
  64 #define DYNAMIC_OBJECT_TYPE (dynamic_object_get_type ())
  65
  66 typedef GObject DynamicObject;
  67 typedef struct _DynamicObjectClass DynamicObjectClass;
  68
  69 struct _DynamicObjectClass
  70 {
  71   GObjectClass parent_class;
  72   guint val;
  73 };
  74
  75 static void dynamic_object_iface_init (TestIface *iface);
  76
  77 G_DEFINE_DYNAMIC_TYPE_EXTENDED(DynamicObject, dynamic_object, G_TYPE_OBJECT, 0,
  78                                G_IMPLEMENT_INTERFACE_DYNAMIC (TEST_TYPE_IFACE,
  79                                                               dynamic_object_iface_init));
  80
  81 static void
  82 dynamic_object_class_init (DynamicObjectClass *class)
  83 {
  84   class->val = 42;
  85   loaded = TRUE;
  86 }
  87
  88 static void
  89 dynamic_object_class_finalize (DynamicObjectClass *class)
  90 {
  91   loaded = FALSE;
  92 }
  93
  94 static void
  95 dynamic_object_iface_init (TestIface *iface)
  96 {
  97 }
  98
  99 static void
 100 dynamic_object_init (DynamicObject *dynamic_object)
 101 {
 102 }
 103
 104 static void
 105 module_register (GTypeModule *module)
 106 {
 107   dynamic_object_register_type (module);
 108 }
 109
 110 static void
 111 test_dynamic_type (void)
 112 {
 113   DynamicObjectClass *class;
 114
 115   test_module_new (module_register);
 116
 117   /* Not loaded until we call ref for the first time */
 118   class = g_type_class_peek (DYNAMIC_OBJECT_TYPE);
 119   g_assert (class == NULL);
 120   g_assert (!loaded);
 121
 122   /* Make sure interfaces work */
 123   g_assert (g_type_is_a (DYNAMIC_OBJECT_TYPE,
 124                          TEST_TYPE_IFACE));
 125
 126   /* Ref loads */
 127   class = g_type_class_ref (DYNAMIC_OBJECT_TYPE);
 128   g_assert (class && class->val == 42);
 129   g_assert (loaded);
 130
 131   /* Peek then works */
 132   class = g_type_class_peek (DYNAMIC_OBJECT_TYPE);
 133   g_assert (class && class->val == 42);
 134   g_assert (loaded);
 135
 136   /* Make sure interfaces still work */
 137   g_assert (g_type_is_a (DYNAMIC_OBJECT_TYPE,
 138                          TEST_TYPE_IFACE));
 139
 140   /* Unref causes finalize */
 141   g_type_class_unref (class);
 142
 143   /* Peek returns NULL */
 144   class = g_type_class_peek (DYNAMIC_OBJECT_TYPE);
 145 #if 0
 146   g_assert (!class);
 147   g_assert (!loaded);
 148 #endif
 149
 150   /* Ref reloads */
 151   class = g_type_class_ref (DYNAMIC_OBJECT_TYPE);
 152   g_assert (class && class->val == 42);
 153   g_assert (loaded);
 154
 155   /* And Unref causes finalize once more*/
 156   g_type_class_unref (class);
 157   class = g_type_class_peek (DYNAMIC_OBJECT_TYPE);
 158 #if 0
 159   g_assert (!class);
 160   g_assert (!loaded);
 161 #endif
 162 }
 163
 164 int
 165 main (int   argc,
 166       char *argv[])
 167 {
 168   g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
 169                           G_LOG_LEVEL_WARNING |
 170                           G_LOG_LEVEL_CRITICAL);
 171
 172   test_dynamic_type ();
 173
 174   return 0;
 175 }