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Add G_DEFINE_{BOXED,POINTER}_TYPE[_WITH_CODE]

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Add convenience type definition macros for boxed and pointer types
similar to G_DEFINE_TYPE for object types. Bug #449565.
This commit is contained in:
Christian Persch 2008-05-24 16:08:04 +02:00
parent cae86073ea
commit dc1999316d
2 changed files with 114 additions and 0 deletions
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4
docs/reference/gobject/gobject-sections.txt
View File

@ -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

110
gobject/gtype.h
View File

@ -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,