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https://github.com/godotengine/godot.git
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0be6d925dc
Which means that reduz' beloved style which we all became used to will now be changed automatically to remove the first empty line. This makes us lean closer to 1TBS (the one true brace style) instead of hybridating it with some Allman-inspired spacing. There's still the case of braces around single-statement blocks that needs to be addressed (but clang-format can't help with that, but clang-tidy may if we agree about it). Part of #33027.
417 lines
18 KiB
C++
417 lines
18 KiB
C++
/*************************************************************************/
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/* class_db.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef CLASS_DB_H
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#define CLASS_DB_H
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#include "core/method_bind.h"
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#include "core/object.h"
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#include "core/print_string.h"
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/** To bind more then 6 parameters include this:
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* #include "core/method_bind_ext.gen.inc"
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*/
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// Makes callable_mp readily available in all classes connecting signals.
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// Needs to come after method_bind and object have been included.
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#include "core/callable_method_pointer.h"
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#define DEFVAL(m_defval) (m_defval)
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#ifdef DEBUG_METHODS_ENABLED
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struct MethodDefinition {
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StringName name;
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Vector<StringName> args;
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MethodDefinition() {}
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MethodDefinition(const char *p_name) :
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name(p_name) {}
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MethodDefinition(const StringName &p_name) :
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name(p_name) {}
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};
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MethodDefinition D_METHOD(const char *p_name);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4);
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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);
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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);
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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);
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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);
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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);
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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);
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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);
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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);
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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);
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#else
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//#define NO_VARIADIC_MACROS
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#ifdef NO_VARIADIC_MACROS
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static _FORCE_INLINE_ const char *D_METHOD(const char *m_name, ...) {
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return m_name;
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}
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#else
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// When DEBUG_METHODS_ENABLED is set this will let the engine know
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// the argument names for easier debugging.
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#define D_METHOD(m_c, ...) m_c
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#endif
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#endif
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class ClassDB {
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public:
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enum APIType {
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API_CORE,
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API_EDITOR,
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API_NONE
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};
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public:
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struct PropertySetGet {
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int index;
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StringName setter;
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StringName getter;
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MethodBind *_setptr;
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MethodBind *_getptr;
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Variant::Type type;
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};
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struct ClassInfo {
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APIType api = API_NONE;
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ClassInfo *inherits_ptr = nullptr;
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void *class_ptr = nullptr;
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HashMap<StringName, MethodBind *> method_map;
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HashMap<StringName, int> constant_map;
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HashMap<StringName, List<StringName>> enum_map;
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HashMap<StringName, MethodInfo> signal_map;
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List<PropertyInfo> property_list;
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#ifdef DEBUG_METHODS_ENABLED
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List<StringName> constant_order;
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List<StringName> method_order;
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Set<StringName> methods_in_properties;
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List<MethodInfo> virtual_methods;
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StringName category;
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#endif
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HashMap<StringName, PropertySetGet> property_setget;
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StringName inherits;
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StringName name;
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bool disabled = false;
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bool exposed = false;
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Object *(*creation_func)() = nullptr;
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ClassInfo() {}
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~ClassInfo() {}
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};
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template <class T>
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static Object *creator() {
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return memnew(T);
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}
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static RWLock *lock;
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static HashMap<StringName, ClassInfo> classes;
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static HashMap<StringName, StringName> resource_base_extensions;
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static HashMap<StringName, StringName> compat_classes;
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#ifdef DEBUG_METHODS_ENABLED
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static MethodBind *bind_methodfi(uint32_t p_flags, MethodBind *p_bind, const MethodDefinition &method_name, const Variant **p_defs, int p_defcount);
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#else
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static MethodBind *bind_methodfi(uint32_t p_flags, MethodBind *p_bind, const char *method_name, const Variant **p_defs, int p_defcount);
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#endif
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static APIType current_api;
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static void _add_class2(const StringName &p_class, const StringName &p_inherits);
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static HashMap<StringName, HashMap<StringName, Variant>> default_values;
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static Set<StringName> default_values_cached;
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public:
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// DO NOT USE THIS!!!!!! NEEDS TO BE PUBLIC BUT DO NOT USE NO MATTER WHAT!!!
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template <class T>
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static void _add_class() {
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_add_class2(T::get_class_static(), T::get_parent_class_static());
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}
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template <class T>
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static void register_class() {
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GLOBAL_LOCK_FUNCTION;
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T::initialize_class();
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ClassInfo *t = classes.getptr(T::get_class_static());
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ERR_FAIL_COND(!t);
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t->creation_func = &creator<T>;
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t->exposed = true;
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t->class_ptr = T::get_class_ptr_static();
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T::register_custom_data_to_otdb();
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}
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template <class T>
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static void register_virtual_class() {
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GLOBAL_LOCK_FUNCTION;
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T::initialize_class();
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ClassInfo *t = classes.getptr(T::get_class_static());
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ERR_FAIL_COND(!t);
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t->exposed = true;
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t->class_ptr = T::get_class_ptr_static();
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//nothing
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}
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template <class T>
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static Object *_create_ptr_func() {
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return T::create();
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}
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template <class T>
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static void register_custom_instance_class() {
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GLOBAL_LOCK_FUNCTION;
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T::initialize_class();
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ClassInfo *t = classes.getptr(T::get_class_static());
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ERR_FAIL_COND(!t);
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t->creation_func = &_create_ptr_func<T>;
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t->exposed = true;
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t->class_ptr = T::get_class_ptr_static();
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T::register_custom_data_to_otdb();
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}
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static void get_class_list(List<StringName> *p_classes);
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static void get_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes);
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static void get_direct_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes);
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static StringName get_parent_class_nocheck(const StringName &p_class);
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static StringName get_parent_class(const StringName &p_class);
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static StringName get_compatibility_remapped_class(const StringName &p_class);
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static bool class_exists(const StringName &p_class);
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static bool is_parent_class(const StringName &p_class, const StringName &p_inherits);
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static bool can_instance(const StringName &p_class);
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static Object *instance(const StringName &p_class);
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static APIType get_api_type(const StringName &p_class);
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static uint64_t get_api_hash(APIType p_api);
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method) {
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MethodBind *bind = create_method_bind(p_method);
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, nullptr, 0); //use static function, much smaller binary usage
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[1] = { &p_def1 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 1);
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[2] = { &p_def1, &p_def2 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 2);
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[3] = { &p_def1, &p_def2, &p_def3 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 3);
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}
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template <class N, class M>
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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) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[4] = { &p_def1, &p_def2, &p_def3, &p_def4 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 4);
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}
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template <class N, class M>
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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) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[5] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 5);
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}
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template <class N, class M>
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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) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[6] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5, &p_def6 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 6);
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}
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template <class N, class M>
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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) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[7] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5, &p_def6, &p_def7 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 7);
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}
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template <class N, class M>
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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) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[8] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5, &p_def6, &p_def7, &p_def8 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 8);
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}
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template <class M>
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static MethodBind *bind_vararg_method(uint32_t p_flags, 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) {
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GLOBAL_LOCK_FUNCTION;
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MethodBind *bind = create_vararg_method_bind(p_method, p_info, p_return_nil_is_variant);
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ERR_FAIL_COND_V(!bind, nullptr);
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bind->set_name(p_name);
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bind->set_default_arguments(p_default_args);
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String instance_type = bind->get_instance_class();
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ClassInfo *type = classes.getptr(instance_type);
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if (!type) {
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memdelete(bind);
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ERR_FAIL_COND_V(!type, nullptr);
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}
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if (type->method_map.has(p_name)) {
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memdelete(bind);
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// overloading not supported
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ERR_FAIL_V_MSG(nullptr, "Method already bound: " + instance_type + "::" + p_name + ".");
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}
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type->method_map[p_name] = bind;
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#ifdef DEBUG_METHODS_ENABLED
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// FIXME: <reduz> set_return_type is no longer in MethodBind, so I guess it should be moved to vararg method bind
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//bind->set_return_type("Variant");
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type->method_order.push_back(p_name);
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#endif
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return bind;
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}
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static void add_signal(StringName p_class, const MethodInfo &p_signal);
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static bool has_signal(StringName p_class, StringName p_signal);
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static bool get_signal(StringName p_class, StringName p_signal, MethodInfo *r_signal);
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static void get_signal_list(StringName p_class, List<MethodInfo> *p_signals, bool p_no_inheritance = false);
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static void add_property_group(StringName p_class, const String &p_name, const String &p_prefix = "");
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static void add_property_subgroup(StringName p_class, const String &p_name, const String &p_prefix = "");
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static void add_property(StringName p_class, const PropertyInfo &p_pinfo, const StringName &p_setter, const StringName &p_getter, int p_index = -1);
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static void set_property_default_value(StringName p_class, const StringName &p_name, const Variant &p_default);
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static void get_property_list(StringName p_class, List<PropertyInfo> *p_list, bool p_no_inheritance = false, const Object *p_validator = nullptr);
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static bool set_property(Object *p_object, const StringName &p_property, const Variant &p_value, bool *r_valid = nullptr);
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static bool get_property(Object *p_object, const StringName &p_property, Variant &r_value);
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static bool has_property(const StringName &p_class, const StringName &p_property, bool p_no_inheritance = false);
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static int get_property_index(const StringName &p_class, const StringName &p_property, bool *r_is_valid = nullptr);
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static Variant::Type get_property_type(const StringName &p_class, const StringName &p_property, bool *r_is_valid = nullptr);
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static StringName get_property_setter(StringName p_class, const StringName &p_property);
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static StringName get_property_getter(StringName p_class, const StringName &p_property);
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static bool has_method(StringName p_class, StringName p_method, bool p_no_inheritance = false);
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static void set_method_flags(StringName p_class, StringName p_method, int p_flags);
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static void get_method_list(StringName p_class, List<MethodInfo> *p_methods, bool p_no_inheritance = false, bool p_exclude_from_properties = false);
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static MethodBind *get_method(StringName p_class, StringName p_name);
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static void add_virtual_method(const StringName &p_class, const MethodInfo &p_method, bool p_virtual = true);
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static void get_virtual_methods(const StringName &p_class, List<MethodInfo> *p_methods, bool p_no_inheritance = false);
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static void bind_integer_constant(const StringName &p_class, const StringName &p_enum, const StringName &p_name, int p_constant);
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static void get_integer_constant_list(const StringName &p_class, List<String> *p_constants, bool p_no_inheritance = false);
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static int get_integer_constant(const StringName &p_class, const StringName &p_name, bool *p_success = nullptr);
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static StringName get_integer_constant_enum(const StringName &p_class, const StringName &p_name, bool p_no_inheritance = false);
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static void get_enum_list(const StringName &p_class, List<StringName> *p_enums, bool p_no_inheritance = false);
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static void get_enum_constants(const StringName &p_class, const StringName &p_enum, List<StringName> *p_constants, bool p_no_inheritance = false);
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static Variant class_get_default_property_value(const StringName &p_class, const StringName &p_property, bool *r_valid = nullptr);
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static StringName get_category(const StringName &p_node);
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static void set_class_enabled(StringName p_class, bool p_enable);
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static bool is_class_enabled(StringName p_class);
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static bool is_class_exposed(StringName p_class);
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static void add_resource_base_extension(const StringName &p_extension, const StringName &p_class);
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static void get_resource_base_extensions(List<String> *p_extensions);
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static void get_extensions_for_type(const StringName &p_class, List<String> *p_extensions);
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static void add_compatibility_class(const StringName &p_class, const StringName &p_fallback);
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static void init();
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static void set_current_api(APIType p_api);
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static APIType get_current_api();
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static void cleanup_defaults();
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static void cleanup();
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};
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#ifdef DEBUG_METHODS_ENABLED
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#define BIND_CONSTANT(m_constant) \
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ClassDB::bind_integer_constant(get_class_static(), StringName(), #m_constant, m_constant);
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#define BIND_ENUM_CONSTANT(m_constant) \
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ClassDB::bind_integer_constant(get_class_static(), __constant_get_enum_name(m_constant, #m_constant), #m_constant, m_constant);
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#else
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#define BIND_CONSTANT(m_constant) \
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ClassDB::bind_integer_constant(get_class_static(), StringName(), #m_constant, m_constant);
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#define BIND_ENUM_CONSTANT(m_constant) \
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ClassDB::bind_integer_constant(get_class_static(), StringName(), #m_constant, m_constant);
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#endif
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#ifdef TOOLS_ENABLED
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#define BIND_VMETHOD(m_method) \
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ClassDB::add_virtual_method(get_class_static(), m_method);
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#else
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#define BIND_VMETHOD(m_method)
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#endif
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#endif // CLASS_DB_H
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