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-rw-r--r--core/extension/gdextension.cpp60
-rw-r--r--core/extension/gdextension.h6
-rw-r--r--core/extension/gdextension_interface.cpp10
-rw-r--r--core/extension/gdextension_interface.h78
4 files changed, 137 insertions, 17 deletions
diff --git a/core/extension/gdextension.cpp b/core/extension/gdextension.cpp
index cb6832ea39..e016ddfaaa 100644
--- a/core/extension/gdextension.cpp
+++ b/core/extension/gdextension.cpp
@@ -382,7 +382,7 @@ public:
#ifndef DISABLE_DEPRECATED
void GDExtension::_register_extension_class(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo *p_extension_funcs) {
- const GDExtensionClassCreationInfo3 class_info3 = {
+ const GDExtensionClassCreationInfo4 class_info4 = {
p_extension_funcs->is_virtual, // GDExtensionBool is_virtual;
p_extension_funcs->is_abstract, // GDExtensionBool is_abstract;
true, // GDExtensionBool is_exposed;
@@ -398,7 +398,7 @@ void GDExtension::_register_extension_class(GDExtensionClassLibraryPtr p_library
p_extension_funcs->to_string_func, // GDExtensionClassToString to_string_func;
p_extension_funcs->reference_func, // GDExtensionClassReference reference_func;
p_extension_funcs->unreference_func, // GDExtensionClassUnreference unreference_func;
- p_extension_funcs->create_instance_func, // GDExtensionClassCreateInstance create_instance_func; /* this one is mandatory */
+ nullptr, // GDExtensionClassCreateInstance2 create_instance_func; /* this one is mandatory */
p_extension_funcs->free_instance_func, // GDExtensionClassFreeInstance free_instance_func; /* this one is mandatory */
nullptr, // GDExtensionClassRecreateInstance recreate_instance_func;
p_extension_funcs->get_virtual_func, // GDExtensionClassGetVirtual get_virtual_func;
@@ -411,12 +411,13 @@ void GDExtension::_register_extension_class(GDExtensionClassLibraryPtr p_library
const ClassCreationDeprecatedInfo legacy = {
p_extension_funcs->notification_func, // GDExtensionClassNotification notification_func;
p_extension_funcs->free_property_list_func, // GDExtensionClassFreePropertyList free_property_list_func;
+ p_extension_funcs->create_instance_func, // GDExtensionClassCreateInstance create_instance_func;
};
- _register_extension_class_internal(p_library, p_class_name, p_parent_class_name, &class_info3, &legacy);
+ _register_extension_class_internal(p_library, p_class_name, p_parent_class_name, &class_info4, &legacy);
}
void GDExtension::_register_extension_class2(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo2 *p_extension_funcs) {
- const GDExtensionClassCreationInfo3 class_info3 = {
+ const GDExtensionClassCreationInfo4 class_info4 = {
p_extension_funcs->is_virtual, // GDExtensionBool is_virtual;
p_extension_funcs->is_abstract, // GDExtensionBool is_abstract;
p_extension_funcs->is_exposed, // GDExtensionBool is_exposed;
@@ -432,7 +433,7 @@ void GDExtension::_register_extension_class2(GDExtensionClassLibraryPtr p_librar
p_extension_funcs->to_string_func, // GDExtensionClassToString to_string_func;
p_extension_funcs->reference_func, // GDExtensionClassReference reference_func;
p_extension_funcs->unreference_func, // GDExtensionClassUnreference unreference_func;
- p_extension_funcs->create_instance_func, // GDExtensionClassCreateInstance create_instance_func; /* this one is mandatory */
+ nullptr, // GDExtensionClassCreateInstance2 create_instance_func; /* this one is mandatory */
p_extension_funcs->free_instance_func, // GDExtensionClassFreeInstance free_instance_func; /* this one is mandatory */
p_extension_funcs->recreate_instance_func, // GDExtensionClassRecreateInstance recreate_instance_func;
p_extension_funcs->get_virtual_func, // GDExtensionClassGetVirtual get_virtual_func;
@@ -445,16 +446,53 @@ void GDExtension::_register_extension_class2(GDExtensionClassLibraryPtr p_librar
const ClassCreationDeprecatedInfo legacy = {
nullptr, // GDExtensionClassNotification notification_func;
p_extension_funcs->free_property_list_func, // GDExtensionClassFreePropertyList free_property_list_func;
+ p_extension_funcs->create_instance_func, // GDExtensionClassCreateInstance create_instance_func;
};
- _register_extension_class_internal(p_library, p_class_name, p_parent_class_name, &class_info3, &legacy);
+ _register_extension_class_internal(p_library, p_class_name, p_parent_class_name, &class_info4, &legacy);
}
-#endif // DISABLE_DEPRECATED
void GDExtension::_register_extension_class3(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo3 *p_extension_funcs) {
+ const GDExtensionClassCreationInfo4 class_info4 = {
+ p_extension_funcs->is_virtual, // GDExtensionBool is_virtual;
+ p_extension_funcs->is_abstract, // GDExtensionBool is_abstract;
+ p_extension_funcs->is_exposed, // GDExtensionBool is_exposed;
+ p_extension_funcs->is_runtime, // GDExtensionBool is_runtime;
+ p_extension_funcs->set_func, // GDExtensionClassSet set_func;
+ p_extension_funcs->get_func, // GDExtensionClassGet get_func;
+ p_extension_funcs->get_property_list_func, // GDExtensionClassGetPropertyList get_property_list_func;
+ p_extension_funcs->free_property_list_func, // GDExtensionClassFreePropertyList free_property_list_func;
+ p_extension_funcs->property_can_revert_func, // GDExtensionClassPropertyCanRevert property_can_revert_func;
+ p_extension_funcs->property_get_revert_func, // GDExtensionClassPropertyGetRevert property_get_revert_func;
+ p_extension_funcs->validate_property_func, // GDExtensionClassValidateProperty validate_property_func;
+ p_extension_funcs->notification_func, // GDExtensionClassNotification2 notification_func;
+ p_extension_funcs->to_string_func, // GDExtensionClassToString to_string_func;
+ p_extension_funcs->reference_func, // GDExtensionClassReference reference_func;
+ p_extension_funcs->unreference_func, // GDExtensionClassUnreference unreference_func;
+ nullptr, // GDExtensionClassCreateInstance2 create_instance_func; /* this one is mandatory */
+ p_extension_funcs->free_instance_func, // GDExtensionClassFreeInstance free_instance_func; /* this one is mandatory */
+ p_extension_funcs->recreate_instance_func, // GDExtensionClassRecreateInstance recreate_instance_func;
+ p_extension_funcs->get_virtual_func, // GDExtensionClassGetVirtual get_virtual_func;
+ p_extension_funcs->get_virtual_call_data_func, // GDExtensionClassGetVirtualCallData get_virtual_call_data_func;
+ p_extension_funcs->call_virtual_with_data_func, // GDExtensionClassCallVirtualWithData call_virtual_func;
+ p_extension_funcs->get_rid_func, // GDExtensionClassGetRID get_rid;
+ p_extension_funcs->class_userdata, // void *class_userdata;
+ };
+
+ const ClassCreationDeprecatedInfo legacy = {
+ nullptr, // GDExtensionClassNotification notification_func;
+ nullptr, // GDExtensionClassFreePropertyList free_property_list_func;
+ p_extension_funcs->create_instance_func, // GDExtensionClassCreateInstance2 create_instance_func;
+ };
+ _register_extension_class_internal(p_library, p_class_name, p_parent_class_name, &class_info4, &legacy);
+}
+
+#endif // DISABLE_DEPRECATED
+
+void GDExtension::_register_extension_class4(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo4 *p_extension_funcs) {
_register_extension_class_internal(p_library, p_class_name, p_parent_class_name, p_extension_funcs);
}
-void GDExtension::_register_extension_class_internal(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo3 *p_extension_funcs, const ClassCreationDeprecatedInfo *p_deprecated_funcs) {
+void GDExtension::_register_extension_class_internal(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo4 *p_extension_funcs, const ClassCreationDeprecatedInfo *p_deprecated_funcs) {
GDExtension *self = reinterpret_cast<GDExtension *>(p_library);
StringName class_name = *reinterpret_cast<const StringName *>(p_class_name);
@@ -530,6 +568,7 @@ void GDExtension::_register_extension_class_internal(GDExtensionClassLibraryPtr
if (p_deprecated_funcs) {
extension->gdextension.notification = p_deprecated_funcs->notification_func;
extension->gdextension.free_property_list = p_deprecated_funcs->free_property_list_func;
+ extension->gdextension.create_instance = p_deprecated_funcs->create_instance_func;
}
#endif // DISABLE_DEPRECATED
extension->gdextension.notification2 = p_extension_funcs->notification_func;
@@ -537,7 +576,7 @@ void GDExtension::_register_extension_class_internal(GDExtensionClassLibraryPtr
extension->gdextension.reference = p_extension_funcs->reference_func;
extension->gdextension.unreference = p_extension_funcs->unreference_func;
extension->gdextension.class_userdata = p_extension_funcs->class_userdata;
- extension->gdextension.create_instance = p_extension_funcs->create_instance_func;
+ extension->gdextension.create_instance2 = p_extension_funcs->create_instance_func;
extension->gdextension.free_instance = p_extension_funcs->free_instance_func;
extension->gdextension.recreate_instance = p_extension_funcs->recreate_instance_func;
extension->gdextension.get_virtual = p_extension_funcs->get_virtual_func;
@@ -888,8 +927,9 @@ void GDExtension::initialize_gdextensions() {
#ifndef DISABLE_DEPRECATED
register_interface_function("classdb_register_extension_class", (GDExtensionInterfaceFunctionPtr)&GDExtension::_register_extension_class);
register_interface_function("classdb_register_extension_class2", (GDExtensionInterfaceFunctionPtr)&GDExtension::_register_extension_class2);
-#endif // DISABLE_DEPRECATED
register_interface_function("classdb_register_extension_class3", (GDExtensionInterfaceFunctionPtr)&GDExtension::_register_extension_class3);
+#endif // DISABLE_DEPRECATED
+ register_interface_function("classdb_register_extension_class4", (GDExtensionInterfaceFunctionPtr)&GDExtension::_register_extension_class4);
register_interface_function("classdb_register_extension_class_method", (GDExtensionInterfaceFunctionPtr)&GDExtension::_register_extension_class_method);
register_interface_function("classdb_register_extension_class_virtual_method", (GDExtensionInterfaceFunctionPtr)&GDExtension::_register_extension_class_virtual_method);
register_interface_function("classdb_register_extension_class_integer_constant", (GDExtensionInterfaceFunctionPtr)&GDExtension::_register_extension_class_integer_constant);
diff --git a/core/extension/gdextension.h b/core/extension/gdextension.h
index 9393e7399b..20fe27b8a8 100644
--- a/core/extension/gdextension.h
+++ b/core/extension/gdextension.h
@@ -72,15 +72,17 @@ class GDExtension : public Resource {
#ifndef DISABLE_DEPRECATED
GDExtensionClassNotification notification_func = nullptr;
GDExtensionClassFreePropertyList free_property_list_func = nullptr;
+ GDExtensionClassCreateInstance create_instance_func = nullptr;
#endif // DISABLE_DEPRECATED
};
#ifndef DISABLE_DEPRECATED
static void _register_extension_class(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo *p_extension_funcs);
static void _register_extension_class2(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo2 *p_extension_funcs);
-#endif // DISABLE_DEPRECATED
static void _register_extension_class3(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo3 *p_extension_funcs);
- static void _register_extension_class_internal(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo3 *p_extension_funcs, const ClassCreationDeprecatedInfo *p_deprecated_funcs = nullptr);
+#endif // DISABLE_DEPRECATED
+ static void _register_extension_class4(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo4 *p_extension_funcs);
+ static void _register_extension_class_internal(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo4 *p_extension_funcs, const ClassCreationDeprecatedInfo *p_deprecated_funcs = nullptr);
static void _register_extension_class_method(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionClassMethodInfo *p_method_info);
static void _register_extension_class_virtual_method(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, const GDExtensionClassVirtualMethodInfo *p_method_info);
static void _register_extension_class_integer_constant(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_enum_name, GDExtensionConstStringNamePtr p_constant_name, GDExtensionInt p_constant_value, GDExtensionBool p_is_bitfield);
diff --git a/core/extension/gdextension_interface.cpp b/core/extension/gdextension_interface.cpp
index 85f83eecfd..a5a0fc906a 100644
--- a/core/extension/gdextension_interface.cpp
+++ b/core/extension/gdextension_interface.cpp
@@ -1515,10 +1515,17 @@ static GDExtensionMethodBindPtr gdextension_classdb_get_method_bind(GDExtensionC
return (GDExtensionMethodBindPtr)mb;
}
+#ifndef DISABLE_DEPRECATED
static GDExtensionObjectPtr gdextension_classdb_construct_object(GDExtensionConstStringNamePtr p_classname) {
const StringName classname = *reinterpret_cast<const StringName *>(p_classname);
return (GDExtensionObjectPtr)ClassDB::instantiate_no_placeholders(classname);
}
+#endif
+
+static GDExtensionObjectPtr gdextension_classdb_construct_object2(GDExtensionConstStringNamePtr p_classname) {
+ const StringName classname = *reinterpret_cast<const StringName *>(p_classname);
+ return (GDExtensionObjectPtr)ClassDB::instantiate_without_postinitialization(classname);
+}
static void *gdextension_classdb_get_class_tag(GDExtensionConstStringNamePtr p_classname) {
const StringName classname = *reinterpret_cast<const StringName *>(p_classname);
@@ -1701,7 +1708,10 @@ void gdextension_setup_interface() {
#endif // DISABLE_DEPRECATED
REGISTER_INTERFACE_FUNC(callable_custom_create2);
REGISTER_INTERFACE_FUNC(callable_custom_get_userdata);
+#ifndef DISABLE_DEPRECATED
REGISTER_INTERFACE_FUNC(classdb_construct_object);
+#endif // DISABLE_DEPRECATED
+ REGISTER_INTERFACE_FUNC(classdb_construct_object2);
REGISTER_INTERFACE_FUNC(classdb_get_method_bind);
REGISTER_INTERFACE_FUNC(classdb_get_class_tag);
REGISTER_INTERFACE_FUNC(editor_add_plugin);
diff --git a/core/extension/gdextension_interface.h b/core/extension/gdextension_interface.h
index fce377f967..cac76d39bd 100644
--- a/core/extension/gdextension_interface.h
+++ b/core/extension/gdextension_interface.h
@@ -268,6 +268,7 @@ typedef void (*GDExtensionClassReference)(GDExtensionClassInstancePtr p_instance
typedef void (*GDExtensionClassUnreference)(GDExtensionClassInstancePtr p_instance);
typedef void (*GDExtensionClassCallVirtual)(GDExtensionClassInstancePtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr r_ret);
typedef GDExtensionObjectPtr (*GDExtensionClassCreateInstance)(void *p_class_userdata);
+typedef GDExtensionObjectPtr (*GDExtensionClassCreateInstance2)(void *p_class_userdata, bool p_notify_postinitialize);
typedef void (*GDExtensionClassFreeInstance)(void *p_class_userdata, GDExtensionClassInstancePtr p_instance);
typedef GDExtensionClassInstancePtr (*GDExtensionClassRecreateInstance)(void *p_class_userdata, GDExtensionObjectPtr p_object);
typedef GDExtensionClassCallVirtual (*GDExtensionClassGetVirtual)(void *p_class_userdata, GDExtensionConstStringNamePtr p_name);
@@ -292,7 +293,7 @@ typedef struct {
GDExtensionClassGetVirtual get_virtual_func; // Queries a virtual function by name and returns a callback to invoke the requested virtual function.
GDExtensionClassGetRID get_rid_func;
void *class_userdata; // Per-class user data, later accessible in instance bindings.
-} GDExtensionClassCreationInfo; // Deprecated. Use GDExtensionClassCreationInfo3 instead.
+} GDExtensionClassCreationInfo; // Deprecated. Use GDExtensionClassCreationInfo4 instead.
typedef struct {
GDExtensionBool is_virtual;
@@ -325,7 +326,7 @@ typedef struct {
GDExtensionClassCallVirtualWithData call_virtual_with_data_func;
GDExtensionClassGetRID get_rid_func;
void *class_userdata; // Per-class user data, later accessible in instance bindings.
-} GDExtensionClassCreationInfo2; // Deprecated. Use GDExtensionClassCreationInfo3 instead.
+} GDExtensionClassCreationInfo2; // Deprecated. Use GDExtensionClassCreationInfo4 instead.
typedef struct {
GDExtensionBool is_virtual;
@@ -359,7 +360,41 @@ typedef struct {
GDExtensionClassCallVirtualWithData call_virtual_with_data_func;
GDExtensionClassGetRID get_rid_func;
void *class_userdata; // Per-class user data, later accessible in instance bindings.
-} GDExtensionClassCreationInfo3;
+} GDExtensionClassCreationInfo3; // Deprecated. Use GDExtensionClassCreationInfo4 instead.
+
+typedef struct {
+ GDExtensionBool is_virtual;
+ GDExtensionBool is_abstract;
+ GDExtensionBool is_exposed;
+ GDExtensionBool is_runtime;
+ GDExtensionClassSet set_func;
+ GDExtensionClassGet get_func;
+ GDExtensionClassGetPropertyList get_property_list_func;
+ GDExtensionClassFreePropertyList2 free_property_list_func;
+ GDExtensionClassPropertyCanRevert property_can_revert_func;
+ GDExtensionClassPropertyGetRevert property_get_revert_func;
+ GDExtensionClassValidateProperty validate_property_func;
+ GDExtensionClassNotification2 notification_func;
+ GDExtensionClassToString to_string_func;
+ GDExtensionClassReference reference_func;
+ GDExtensionClassUnreference unreference_func;
+ GDExtensionClassCreateInstance2 create_instance_func; // (Default) constructor; mandatory. If the class is not instantiable, consider making it virtual or abstract.
+ GDExtensionClassFreeInstance free_instance_func; // Destructor; mandatory.
+ GDExtensionClassRecreateInstance recreate_instance_func;
+ // Queries a virtual function by name and returns a callback to invoke the requested virtual function.
+ GDExtensionClassGetVirtual get_virtual_func;
+ // Paired with `call_virtual_with_data_func`, this is an alternative to `get_virtual_func` for extensions that
+ // need or benefit from extra data when calling virtual functions.
+ // Returns user data that will be passed to `call_virtual_with_data_func`.
+ // Returning `NULL` from this function signals to Godot that the virtual function is not overridden.
+ // Data returned from this function should be managed by the extension and must be valid until the extension is deinitialized.
+ // You should supply either `get_virtual_func`, or `get_virtual_call_data_func` with `call_virtual_with_data_func`.
+ GDExtensionClassGetVirtualCallData get_virtual_call_data_func;
+ // Used to call virtual functions when `get_virtual_call_data_func` is not null.
+ GDExtensionClassCallVirtualWithData call_virtual_with_data_func;
+ GDExtensionClassGetRID get_rid_func;
+ void *class_userdata; // Per-class user data, later accessible in instance bindings.
+} GDExtensionClassCreationInfo4;
typedef void *GDExtensionClassLibraryPtr;
@@ -2680,6 +2715,7 @@ typedef void *(*GDExtensionInterfaceCallableCustomGetUserData)(GDExtensionConstT
/**
* @name classdb_construct_object
* @since 4.1
+ * @deprecated in Godot 4.4. Use `classdb_construct_object2` instead.
*
* Constructs an Object of the requested class.
*
@@ -2692,6 +2728,22 @@ typedef void *(*GDExtensionInterfaceCallableCustomGetUserData)(GDExtensionConstT
typedef GDExtensionObjectPtr (*GDExtensionInterfaceClassdbConstructObject)(GDExtensionConstStringNamePtr p_classname);
/**
+ * @name classdb_construct_object2
+ * @since 4.4
+ *
+ * Constructs an Object of the requested class.
+ *
+ * The passed class must be a built-in godot class, or an already-registered extension class. In both cases, object_set_instance() should be called to fully initialize the object.
+ *
+ * "NOTIFICATION_POSTINITIALIZE" must be sent after construction.
+ *
+ * @param p_classname A pointer to a StringName with the class name.
+ *
+ * @return A pointer to the newly created Object.
+ */
+typedef GDExtensionObjectPtr (*GDExtensionInterfaceClassdbConstructObject2)(GDExtensionConstStringNamePtr p_classname);
+
+/**
* @name classdb_get_method_bind
* @since 4.1
*
@@ -2722,7 +2774,7 @@ typedef void *(*GDExtensionInterfaceClassdbGetClassTag)(GDExtensionConstStringNa
/**
* @name classdb_register_extension_class
* @since 4.1
- * @deprecated in Godot 4.2. Use `classdb_register_extension_class3` instead.
+ * @deprecated in Godot 4.2. Use `classdb_register_extension_class4` instead.
*
* Registers an extension class in the ClassDB.
*
@@ -2738,7 +2790,7 @@ typedef void (*GDExtensionInterfaceClassdbRegisterExtensionClass)(GDExtensionCla
/**
* @name classdb_register_extension_class2
* @since 4.2
- * @deprecated in Godot 4.3. Use `classdb_register_extension_class3` instead.
+ * @deprecated in Godot 4.3. Use `classdb_register_extension_class4` instead.
*
* Registers an extension class in the ClassDB.
*
@@ -2754,6 +2806,7 @@ typedef void (*GDExtensionInterfaceClassdbRegisterExtensionClass2)(GDExtensionCl
/**
* @name classdb_register_extension_class3
* @since 4.3
+ * @deprecated in Godot 4.4. Use `classdb_register_extension_class4` instead.
*
* Registers an extension class in the ClassDB.
*
@@ -2767,6 +2820,21 @@ typedef void (*GDExtensionInterfaceClassdbRegisterExtensionClass2)(GDExtensionCl
typedef void (*GDExtensionInterfaceClassdbRegisterExtensionClass3)(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo3 *p_extension_funcs);
/**
+ * @name classdb_register_extension_class4
+ * @since 4.4
+ *
+ * Registers an extension class in the ClassDB.
+ *
+ * Provided struct can be safely freed once the function returns.
+ *
+ * @param p_library A pointer the library received by the GDExtension's entry point function.
+ * @param p_class_name A pointer to a StringName with the class name.
+ * @param p_parent_class_name A pointer to a StringName with the parent class name.
+ * @param p_extension_funcs A pointer to a GDExtensionClassCreationInfo2 struct.
+ */
+typedef void (*GDExtensionInterfaceClassdbRegisterExtensionClass4)(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo4 *p_extension_funcs);
+
+/**
* @name classdb_register_extension_class_method
* @since 4.1
*