Allow registering "runtime classes"

This commit is contained in:
David Snopek 2024-01-02 14:10:54 -06:00
parent dfe226b933
commit ea75307a11
9 changed files with 401 additions and 38 deletions

View file

@ -290,7 +290,7 @@ 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 GDExtensionClassCreationInfo2 instead.
} GDExtensionClassCreationInfo; // Deprecated. Use GDExtensionClassCreationInfo3 instead.
typedef struct {
GDExtensionBool is_virtual;
@ -323,7 +323,41 @@ typedef struct {
GDExtensionClassCallVirtualWithData call_virtual_with_data_func;
GDExtensionClassGetRID get_rid_func;
void *class_userdata; // Per-class user data, later accessible in instance bindings.
} GDExtensionClassCreationInfo2;
} GDExtensionClassCreationInfo2; // Deprecated. Use GDExtensionClassCreationInfo3 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;
GDExtensionClassFreePropertyList 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;
GDExtensionClassCreateInstance 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.
} GDExtensionClassCreationInfo3;
typedef void *GDExtensionClassLibraryPtr;
@ -2240,6 +2274,9 @@ typedef void (*GDExtensionInterfaceObjectSetInstance)(GDExtensionObjectPtr p_o,
*
* Gets the class name of an Object.
*
* If the GDExtension wraps the Godot object in an abstraction specific to its class, this is the
* function that should be used to determine which wrapper to use.
*
* @param p_object A pointer to the Object.
* @param p_library A pointer the library received by the GDExtension's entry point function.
* @param r_class_name A pointer to a String to receive the class name.
@ -2486,7 +2523,7 @@ typedef void *(*GDExtensionInterfaceClassdbGetClassTag)(GDExtensionConstStringNa
/**
* @name classdb_register_extension_class
* @since 4.1
* @deprecated in Godot 4.2. Use `classdb_register_extension_class2` instead.
* @deprecated in Godot 4.2. Use `classdb_register_extension_class3` instead.
*
* Registers an extension class in the ClassDB.
*
@ -2502,6 +2539,7 @@ typedef void (*GDExtensionInterfaceClassdbRegisterExtensionClass)(GDExtensionCla
/**
* @name classdb_register_extension_class2
* @since 4.2
* @deprecated in Godot 4.3. Use `classdb_register_extension_class3` instead.
*
* Registers an extension class in the ClassDB.
*
@ -2514,6 +2552,21 @@ typedef void (*GDExtensionInterfaceClassdbRegisterExtensionClass)(GDExtensionCla
*/
typedef void (*GDExtensionInterfaceClassdbRegisterExtensionClass2)(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo2 *p_extension_funcs);
/**
* @name classdb_register_extension_class3
* @since 4.3
*
* 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 (*GDExtensionInterfaceClassdbRegisterExtensionClass3)(GDExtensionClassLibraryPtr p_library, GDExtensionConstStringNamePtr p_class_name, GDExtensionConstStringNamePtr p_parent_class_name, const GDExtensionClassCreationInfo3 *p_extension_funcs);
/**
* @name classdb_register_extension_class_method
* @since 4.1