[glib] Add G_DEFINE_{BOXED,POINTER}_TYPE[_WITH_CODE]

[Christian Persch <chpe src gnome org>]

commit dc1999316da0409c5bc15e37a0a568a8309bb5a3
Author: Christian Persch <chpe gnome org>
Date:   Sat May 24 16:08:04 2008 +0200

    Add G_DEFINE_{BOXED,POINTER}_TYPE[_WITH_CODE]
    
    Add convenience type definition macros for boxed and pointer types
    similar to G_DEFINE_TYPE for object types. Bug #449565.

 docs/reference/gobject/gobject-sections.txt |    4 +
 gobject/gtype.h                             |  110 +++++++++++++++++++++++++++
 2 files changed, 114 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gobject/gobject-sections.txt b/docs/reference/gobject/gobject-sections.txt
index d1f4a05..1135bd1 100644
--- a/docs/reference/gobject/gobject-sections.txt
+++ b/docs/reference/gobject/gobject-sections.txt
@@ -107,6 +107,10 @@ G_DEFINE_INTERFACE
 G_DEFINE_INTERFACE_WITH_CODE
 G_IMPLEMENT_INTERFACE
 G_DEFINE_TYPE_EXTENDED
+G_DEFINE_BOXED_TYPE
+G_DEFINE_BOXED_TYPE_WITH_CODE
+G_DEFINE_POINTER_TYPE
+G_DEFINE_POINTER_TYPE_WITH_CODE
 
 <SUBSECTION Private>
 G_TYPE_FUNDAMENTAL_SHIFT
diff --git a/gobject/gtype.h b/gobject/gtype.h
index 253d68e..24970bc 100644
--- a/gobject/gtype.h
+++ b/gobject/gtype.h
@@ -1505,6 +1505,116 @@ type_name##_get_type (void) \
   return g_define_type_id__volatile;			\
 } /* closes type_name##_get_type() */
 
+/**
+ * G_DEFINE_BOXED_TYPE:
+ * @TypeName: The name of the new type, in Camel case.
+ * @type_name: The name of the new type, in lowercase, with words
+ *  separated by '_'.
+ * @copy_func: the #GBoxedCopyFunc for the new type
+ * @free_func: the #GBoxedFreeFunc for the new type
+ *
+ * A convenience macro for boxed type implementations, which defines a
+ * type_name_get_type() function registering the boxed type.
+ *
+ * Since: 2.26
+ */
+#define G_DEFINE_BOXED_TYPE(TypeName, type_name, copy_func, free_func) G_DEFINE_BOXED_TYPE_WITH_CODE (TypeName, type_name, copy_func, free_func, {})
+/**
+ * G_DEFINE_BOXED_TYPE_WITH_CODE:
+ * @TypeName: The name of the new type, in Camel case.
+ * @type_name: The name of the new type, in lowercase, with words
+ *  separated by '_'.
+ * @copy_func: the #GBoxedCopyFunc for the new type
+ * @free_func: the #GBoxedFreeFunc for the new type
+ * @_C_: Custom code that gets inserted in the *_get_type() function.
+ *
+ * A convenience macro for boxed type implementations.
+ * Similar to G_DEFINE_BOXED_TYPE(), but allows to insert custom code into the
+ * type_name_get_type() function, e.g. to register value transformations with
+ * g_value_register_transform_func().
+ *
+ * Since: 2.26
+ */
+#define G_DEFINE_BOXED_TYPE_WITH_CODE(TypeName, type_name, copy_func, free_func, _C_) _G_DEFINE_BOXED_TYPE_BEGIN (TypeName, type_name, copy_func, free_func) {_C_;} _G_DEFINE_TYPE_EXTENDED_END()
+
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
+#define _G_DEFINE_BOXED_TYPE_BEGIN(TypeName, type_name, copy_func, free_func) \
+GType \
+type_name##_get_type (void) \
+{ \
+  static volatile gsize g_define_type_id__volatile = 0; \
+  if (g_once_init_enter (&g_define_type_id__volatile))  \
+    { \
+      GType (* _g_register_boxed) \
+        (const gchar *, \
+         union \
+           { \
+             TypeName * (*do_copy_type) (TypeName *); \
+             TypeName * (*do_const_copy_type) (const TypeName *); \
+             GBoxedCopyFunc do_copy_boxed; \
+           } __attribute__((__transparent_union__)), \
+         union \
+           { \
+             void (* do_free_type) (TypeName *); \
+             GBoxedFreeFunc do_free_boxed; \
+           } __attribute__((__transparent_union__)) \
+        ) = g_boxed_type_register_static; \
+      GType g_define_type_id = \
+        _g_register_boxed (g_intern_static_string (#TypeName), copy_func, free_func); \
+      { /* custom code follows */
+#else
+#define _G_DEFINE_BOXED_TYPE_BEGIN(TypeName, type_name, copy_func, free_func) \
+GType \
+type_name##_get_type (void) \
+{ \
+  static volatile gsize g_define_type_id__volatile = 0; \
+  if (g_once_init_enter (&g_define_type_id__volatile))  \
+    { \
+      GType g_define_type_id = \
+        g_boxed_type_register_static (g_intern_static_string (#TypeName), \
+                                      (GBoxedCopyFunc) copy_func, \
+                                      (GBoxedFreeFunc) free_func); \
+      { /* custom code follows */
+#endif /* __GNUC__ */
+
+/**
+ * G_DEFINE_POINTER_TYPE:
+ * @TypeName: The name of the new type, in Camel case.
+ * @type_name: The name of the new type, in lowercase, with words
+ *  separated by '_'.
+ *
+ * A convenience macro for pointer type implementations, which defines a
+ * type_name_get_type() function registering the pointer type.
+ *
+ * Since: 2.26
+ */
+#define G_DEFINE_POINTER_TYPE(TypeName, type_name) G_DEFINE_POINTER_TYPE_WITH_CODE (TypeName, type_name, {})
+/**
+ * G_DEFINE_POINTER_TYPE_WITH_CODE:
+ * @TypeName: The name of the new type, in Camel case.
+ * @type_name: The name of the new type, in lowercase, with words
+ *  separated by '_'.
+ * @_C_: Custom code that gets inserted in the *_get_type() function.
+ *
+ * A convenience macro for pointer type implementations.
+ * Similar to G_DEFINE_POINTER_TYPE(), but allows to insert custom code into the
+ * type_name_get_type() function.
+ *
+ * Since: 2.26
+ */
+#define G_DEFINE_POINTER_TYPE_WITH_CODE(TypeName, type_name, _C_) _G_DEFINE_POINTER_TYPE_BEGIN (TypeName, type_name) {_C_;} _G_DEFINE_TYPE_EXTENDED_END()
+
+#define _G_DEFINE_POINTER_TYPE_BEGIN(TypeName, type_name) \
+GType \
+type_name##_get_type (void) \
+{ \
+  static volatile gsize g_define_type_id__volatile = 0; \
+  if (g_once_init_enter (&g_define_type_id__volatile))  \
+    { \
+      GType g_define_type_id = \
+        g_pointer_type_register_static (g_intern_static_string (#TypeName)); \
+      { /* custom code follows */
+
 /* --- protected (for fundamental type implementations) --- */
 GTypePlugin*	 g_type_get_plugin		(GType		     type);
 GTypePlugin*	 g_type_interface_get_plugin	(GType		     instance_type,