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Merge pull request #1246 from dsnopek/virtual-call-data 

Update for addition of `get_virtual_call_data_func` and `call_virtual_func` to `GDExtensionClassCreationInfo2`
pull/1248/head
David Snopek 2023-09-20 14:16:43 -05:00 committed by GitHub
parent a3dfbbde85 3a02feddc3
commit a963b8b7c7
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 18 additions and 4 deletions
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20
gdextension/gdextension_interface.h
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@ -265,9 +265,11 @@ typedef void (*GDExtensionClassToString)(GDExtensionClassInstancePtr p_instance,
typedef void (*GDExtensionClassReference)(GDExtensionClassInstancePtr p_instance); typedef void (*GDExtensionClassReference)(GDExtensionClassInstancePtr p_instance);
typedef void (*GDExtensionClassUnreference)(GDExtensionClassInstancePtr p_instance); typedef void (*GDExtensionClassUnreference)(GDExtensionClassInstancePtr p_instance);
typedef void (*GDExtensionClassCallVirtual)(GDExtensionClassInstancePtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr r_ret); typedef void (*GDExtensionClassCallVirtual)(GDExtensionClassInstancePtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr r_ret);
typedef GDExtensionObjectPtr (*GDExtensionClassCreateInstance)(void *p_userdata); typedef GDExtensionObjectPtr (*GDExtensionClassCreateInstance)(void *p_class_userdata);
typedef void (*GDExtensionClassFreeInstance)(void *p_userdata, GDExtensionClassInstancePtr p_instance); typedef void (*GDExtensionClassFreeInstance)(void *p_class_userdata, GDExtensionClassInstancePtr p_instance);
typedef GDExtensionClassCallVirtual (*GDExtensionClassGetVirtual)(void *p_userdata, GDExtensionConstStringNamePtr p_name); typedef GDExtensionClassCallVirtual (*GDExtensionClassGetVirtual)(void *p_class_userdata, GDExtensionConstStringNamePtr p_name);
typedef void *(*GDExtensionClassGetVirtualCallData)(void *p_class_userdata, GDExtensionConstStringNamePtr p_name);
typedef void (*GDExtensionClassCallVirtualWithData)(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, void *p_virtual_call_userdata, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr r_ret);
typedef struct { typedef struct {
GDExtensionBool is_virtual; GDExtensionBool is_virtual;
@ -306,7 +308,17 @@ typedef struct {
GDExtensionClassUnreference unreference_func; GDExtensionClassUnreference unreference_func;
GDExtensionClassCreateInstance create_instance_func; // (Default) constructor; mandatory. If the class is not instantiable, consider making it virtual or abstract. 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. GDExtensionClassFreeInstance free_instance_func; // Destructor; mandatory.
GDExtensionClassGetVirtual get_virtual_func; // Queries a virtual function by name and returns a callback to invoke the requested virtual function. // 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; GDExtensionClassGetRID get_rid_func;
void *class_userdata; // Per-class user data, later accessible in instance bindings. void *class_userdata; // Per-class user data, later accessible in instance bindings.
} GDExtensionClassCreationInfo2; } GDExtensionClassCreationInfo2;

2
include/godot_cpp/core/class_db.hpp
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@ -198,6 +198,8 @@ void ClassDB::_register_class(bool p_virtual, bool p_exposed) {
T::create, // GDExtensionClassCreateInstance create_instance_func; /* this one is mandatory */ T::create, // GDExtensionClassCreateInstance create_instance_func; /* this one is mandatory */
T::free, // GDExtensionClassFreeInstance free_instance_func; /* this one is mandatory */ T::free, // GDExtensionClassFreeInstance free_instance_func; /* this one is mandatory */
&ClassDB::get_virtual_func, // GDExtensionClassGetVirtual get_virtual_func; &ClassDB::get_virtual_func, // GDExtensionClassGetVirtual get_virtual_func;
nullptr, // GDExtensionClassGetVirtualCallData get_virtual_call_data_func;
nullptr, // GDExtensionClassCallVirtualWithData call_virtual_func;
nullptr, // GDExtensionClassGetRID get_rid; nullptr, // GDExtensionClassGetRID get_rid;
(void *)&T::get_class_static(), // void *class_userdata; (void *)&T::get_class_static(), // void *class_userdata;
}; };