/*************************************************************************/ /* class_db.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #ifndef CLASS_DB_H #define CLASS_DB_H #include "core/object/method_bind.h" #include "core/object/object.h" #include "core/string/print_string.h" /** To bind more then 6 parameters include this: * */ // Makes callable_mp readily available in all classes connecting signals. // Needs to come after method_bind and object have been included. #include "core/object/callable_method_pointer.h" #define DEFVAL(m_defval) (m_defval) #ifdef DEBUG_METHODS_ENABLED struct MethodDefinition { StringName name; Vector<StringName> args; MethodDefinition() {} MethodDefinition(const char *p_name) : name(p_name) {} MethodDefinition(const StringName &p_name) : name(p_name) {} }; MethodDefinition D_METHOD(const char *p_name); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8, const char *p_arg9); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8, const char *p_arg9, const char *p_arg10); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8, const char *p_arg9, const char *p_arg10, const char *p_arg11); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8, const char *p_arg9, const char *p_arg10, const char *p_arg11, const char *p_arg12); MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8, const char *p_arg9, const char *p_arg10, const char *p_arg11, const char *p_arg12, const char *p_arg13); #else //#define NO_VARIADIC_MACROS #ifdef NO_VARIADIC_MACROS static _FORCE_INLINE_ const char *D_METHOD(const char *m_name, ...) { return m_name; } #else // When DEBUG_METHODS_ENABLED is set this will let the engine know // the argument names for easier debugging. #define D_METHOD(m_c, ...) m_c #endif #endif class ClassDB { public: enum APIType { API_CORE, API_EDITOR, API_EXTENSION, API_EDITOR_EXTENSION, API_NONE }; public: struct PropertySetGet { int index; StringName setter; StringName getter; MethodBind *_setptr; MethodBind *_getptr; Variant::Type type; }; struct ClassInfo { APIType api = API_NONE; ClassInfo *inherits_ptr = nullptr; void *class_ptr = nullptr; ObjectNativeExtension *native_extension = nullptr; HashMap<StringName, MethodBind *> method_map; HashMap<StringName, int> constant_map; HashMap<StringName, List<StringName>> enum_map; HashMap<StringName, MethodInfo> signal_map; List<PropertyInfo> property_list; HashMap<StringName, PropertyInfo> property_map; #ifdef DEBUG_METHODS_ENABLED List<StringName> constant_order; List<StringName> method_order; Set<StringName> methods_in_properties; List<MethodInfo> virtual_methods; Map<StringName, MethodInfo> virtual_methods_map; StringName category; #endif HashMap<StringName, PropertySetGet> property_setget; StringName inherits; StringName name; bool disabled = false; bool exposed = false; Object *(*creation_func)() = nullptr; ClassInfo() {} ~ClassInfo() {} }; template <class T> static Object *creator() { return memnew(T); } static RWLock lock; static HashMap<StringName, ClassInfo> classes; static HashMap<StringName, StringName> resource_base_extensions; static HashMap<StringName, StringName> compat_classes; #ifdef DEBUG_METHODS_ENABLED static MethodBind *bind_methodfi(uint32_t p_flags, MethodBind *p_bind, const MethodDefinition &method_name, const Variant **p_defs, int p_defcount); #else static MethodBind *bind_methodfi(uint32_t p_flags, MethodBind *p_bind, const char *method_name, const Variant **p_defs, int p_defcount); #endif static APIType current_api; static void _add_class2(const StringName &p_class, const StringName &p_inherits); static HashMap<StringName, HashMap<StringName, Variant>> default_values; static Set<StringName> default_values_cached; private: // Non-locking variants of get_parent_class and is_parent_class. static StringName _get_parent_class(const StringName &p_class); static bool _is_parent_class(const StringName &p_class, const StringName &p_inherits); public: // DO NOT USE THIS!!!!!! NEEDS TO BE PUBLIC BUT DO NOT USE NO MATTER WHAT!!! template <class T> static void _add_class() { _add_class2(T::get_class_static(), T::get_parent_class_static()); } template <class T> static void register_class() { GLOBAL_LOCK_FUNCTION; T::initialize_class(); ClassInfo *t = classes.getptr(T::get_class_static()); ERR_FAIL_COND(!t); t->creation_func = &creator<T>; t->exposed = true; t->class_ptr = T::get_class_ptr_static(); T::register_custom_data_to_otdb(); } template <class T> static void register_virtual_class() { GLOBAL_LOCK_FUNCTION; T::initialize_class(); ClassInfo *t = classes.getptr(T::get_class_static()); ERR_FAIL_COND(!t); t->exposed = true; t->class_ptr = T::get_class_ptr_static(); //nothing } static void register_extension_class(ObjectNativeExtension *p_extension); static void unregister_extension_class(const StringName &p_class); template <class T> static Object *_create_ptr_func() { return T::create(); } template <class T> static void register_custom_instance_class() { GLOBAL_LOCK_FUNCTION; T::initialize_class(); ClassInfo *t = classes.getptr(T::get_class_static()); ERR_FAIL_COND(!t); t->creation_func = &_create_ptr_func<T>; t->exposed = true; t->class_ptr = T::get_class_ptr_static(); T::register_custom_data_to_otdb(); } static void get_class_list(List<StringName> *p_classes); static void get_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes); static void get_direct_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes); static StringName get_parent_class_nocheck(const StringName &p_class); static StringName get_parent_class(const StringName &p_class); static StringName get_compatibility_remapped_class(const StringName &p_class); static bool class_exists(const StringName &p_class); static bool is_parent_class(const StringName &p_class, const StringName &p_inherits); static bool can_instantiate(const StringName &p_class); static Object *instantiate(const StringName &p_class); static void instance_get_native_extension_data(ObjectNativeExtension **r_extension, GDExtensionClassInstancePtr *r_extension_instance, Object *p_base); static APIType get_api_type(const StringName &p_class); static uint64_t get_api_hash(APIType p_api); template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method) { MethodBind *bind = create_method_bind(p_method); return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, nullptr, 0); //use static function, much smaller binary usage } template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1) { MethodBind *bind = create_method_bind(p_method); const Variant *ptr[1] = { &p_def1 }; return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 1); } template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2) { MethodBind *bind = create_method_bind(p_method); const Variant *ptr[2] = { &p_def1, &p_def2 }; return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 2); } template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3) { MethodBind *bind = create_method_bind(p_method); const Variant *ptr[3] = { &p_def1, &p_def2, &p_def3 }; return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 3); } template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3, const Variant &p_def4) { MethodBind *bind = create_method_bind(p_method); const Variant *ptr[4] = { &p_def1, &p_def2, &p_def3, &p_def4 }; return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 4); } template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3, const Variant &p_def4, const Variant &p_def5) { MethodBind *bind = create_method_bind(p_method); const Variant *ptr[5] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5 }; return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 5); } template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3, const Variant &p_def4, const Variant &p_def5, const Variant &p_def6) { MethodBind *bind = create_method_bind(p_method); const Variant *ptr[6] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5, &p_def6 }; return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 6); } template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3, const Variant &p_def4, const Variant &p_def5, const Variant &p_def6, const Variant &p_def7) { MethodBind *bind = create_method_bind(p_method); const Variant *ptr[7] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5, &p_def6, &p_def7 }; return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 7); } template <class N, class M> static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3, const Variant &p_def4, const Variant &p_def5, const Variant &p_def6, const Variant &p_def7, const Variant &p_def8) { MethodBind *bind = create_method_bind(p_method); const Variant *ptr[8] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5, &p_def6, &p_def7, &p_def8 }; return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 8); } template <class M> static MethodBind *bind_vararg_method(uint32_t p_flags, const StringName &p_name, M p_method, const MethodInfo &p_info = MethodInfo(), const Vector<Variant> &p_default_args = Vector<Variant>(), bool p_return_nil_is_variant = true) { GLOBAL_LOCK_FUNCTION; MethodBind *bind = create_vararg_method_bind(p_method, p_info, p_return_nil_is_variant); ERR_FAIL_COND_V(!bind, nullptr); bind->set_name(p_name); bind->set_default_arguments(p_default_args); String instance_type = bind->get_instance_class(); ClassInfo *type = classes.getptr(instance_type); if (!type) { memdelete(bind); ERR_FAIL_COND_V(!type, nullptr); } if (type->method_map.has(p_name)) { memdelete(bind); // Overloading not supported ERR_FAIL_V_MSG(nullptr, "Method already bound: " + instance_type + "::" + p_name + "."); } type->method_map[p_name] = bind; #ifdef DEBUG_METHODS_ENABLED // FIXME: <reduz> set_return_type is no longer in MethodBind, so I guess it should be moved to vararg method bind //bind->set_return_type("Variant"); type->method_order.push_back(p_name); #endif return bind; } static void bind_method_custom(const StringName &p_class, MethodBind *p_method); static void add_signal(const StringName &p_class, const MethodInfo &p_signal); static bool has_signal(const StringName &p_class, const StringName &p_signal, bool p_no_inheritance = false); static bool get_signal(const StringName &p_class, const StringName &p_signal, MethodInfo *r_signal); static void get_signal_list(const StringName &p_class, List<MethodInfo> *p_signals, bool p_no_inheritance = false); static void add_property_group(const StringName &p_class, const String &p_name, const String &p_prefix = ""); static void add_property_subgroup(const StringName &p_class, const String &p_name, const String &p_prefix = ""); static void add_property(const StringName &p_class, const PropertyInfo &p_pinfo, const StringName &p_setter, const StringName &p_getter, int p_index = -1); static void set_property_default_value(const StringName &p_class, const StringName &p_name, const Variant &p_default); static void get_property_list(const StringName &p_class, List<PropertyInfo> *p_list, bool p_no_inheritance = false, const Object *p_validator = nullptr); static bool get_property_info(const StringName &p_class, const StringName &p_property, PropertyInfo *r_info, bool p_no_inheritance = false, const Object *p_validator = nullptr); static bool set_property(Object *p_object, const StringName &p_property, const Variant &p_value, bool *r_valid = nullptr); static bool get_property(Object *p_object, const StringName &p_property, Variant &r_value); static bool has_property(const StringName &p_class, const StringName &p_property, bool p_no_inheritance = false); static int get_property_index(const StringName &p_class, const StringName &p_property, bool *r_is_valid = nullptr); static Variant::Type get_property_type(const StringName &p_class, const StringName &p_property, bool *r_is_valid = nullptr); static StringName get_property_setter(const StringName &p_class, const StringName &p_property); static StringName get_property_getter(const StringName &p_class, const StringName &p_property); static bool has_method(const StringName &p_class, const StringName &p_method, bool p_no_inheritance = false); static void set_method_flags(const StringName &p_class, const StringName &p_method, int p_flags); static void get_method_list(const StringName &p_class, List<MethodInfo> *p_methods, bool p_no_inheritance = false, bool p_exclude_from_properties = false); static bool get_method_info(const StringName &p_class, const StringName &p_method, MethodInfo *r_info, bool p_no_inheritance = false, bool p_exclude_from_properties = false); static MethodBind *get_method(const StringName &p_class, const StringName &p_name); static void add_virtual_method(const StringName &p_class, const MethodInfo &p_method, bool p_virtual = true); static void get_virtual_methods(const StringName &p_class, List<MethodInfo> *p_methods, bool p_no_inheritance = false); static void bind_integer_constant(const StringName &p_class, const StringName &p_enum, const StringName &p_name, int p_constant); static void get_integer_constant_list(const StringName &p_class, List<String> *p_constants, bool p_no_inheritance = false); static int get_integer_constant(const StringName &p_class, const StringName &p_name, bool *p_success = nullptr); static bool has_integer_constant(const StringName &p_class, const StringName &p_name, bool p_no_inheritance = false); static StringName get_integer_constant_enum(const StringName &p_class, const StringName &p_name, bool p_no_inheritance = false); static void get_enum_list(const StringName &p_class, List<StringName> *p_enums, bool p_no_inheritance = false); static void get_enum_constants(const StringName &p_class, const StringName &p_enum, List<StringName> *p_constants, bool p_no_inheritance = false); static bool has_enum(const StringName &p_class, const StringName &p_name, bool p_no_inheritance = false); static Variant class_get_default_property_value(const StringName &p_class, const StringName &p_property, bool *r_valid = nullptr); static StringName get_category(const StringName &p_node); static void set_class_enabled(const StringName &p_class, bool p_enable); static bool is_class_enabled(const StringName &p_class); static bool is_class_exposed(const StringName &p_class); static void add_resource_base_extension(const StringName &p_extension, const StringName &p_class); static void get_resource_base_extensions(List<String> *p_extensions); static void get_extensions_for_type(const StringName &p_class, List<String> *p_extensions); static bool is_resource_extension(const StringName &p_extension); static void add_compatibility_class(const StringName &p_class, const StringName &p_fallback); static void set_current_api(APIType p_api); static APIType get_current_api(); static void cleanup_defaults(); static void cleanup(); }; #ifdef DEBUG_METHODS_ENABLED #define BIND_CONSTANT(m_constant) \ ::ClassDB::bind_integer_constant(get_class_static(), StringName(), #m_constant, m_constant); #define BIND_ENUM_CONSTANT(m_constant) \ ::ClassDB::bind_integer_constant(get_class_static(), __constant_get_enum_name(m_constant, #m_constant), #m_constant, m_constant); #else #define BIND_CONSTANT(m_constant) \ ::ClassDB::bind_integer_constant(get_class_static(), StringName(), #m_constant, m_constant); #define BIND_ENUM_CONSTANT(m_constant) \ ::ClassDB::bind_integer_constant(get_class_static(), StringName(), #m_constant, m_constant); #endif #ifdef TOOLS_ENABLED #define BIND_VMETHOD(m_method) \ ::ClassDB::add_virtual_method(get_class_static(), m_method); #else #define BIND_VMETHOD(m_method) #endif #define GDREGISTER_CLASS(m_class) \ if (!GD_IS_DEFINED(ClassDB_Disable_##m_class)) { \ ::ClassDB::register_class<m_class>(); \ } #define GDREGISTER_VIRTUAL_CLASS(m_class) \ if (!GD_IS_DEFINED(ClassDB_Disable_##m_class)) { \ ::ClassDB::register_virtual_class<m_class>(); \ } #include "core/disabled_classes.gen.h" #endif // CLASS_DB_H