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https://github.com/Relintai/sfw.git
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288 lines
13 KiB
C++
288 lines
13 KiB
C++
//--STRIP
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#ifndef OBJECT_H
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#define OBJECT_H
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//--STRIP
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//--STRIP
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#include "core/hash_map.h"
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#include "core/rw_lock.h"
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#include "core/string_name.h"
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#include "core/ustring.h"
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#include "core/vector.h"
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#include "object/object_id.h"
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#include "object/variant.h"
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#include "object/dictionary.h"
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//--STRIP
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/*************************************************************************/
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/* object.h */
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/* From https://github.com/Relintai/pandemonium_engine (MIT) */
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/*************************************************************************/
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class ObjectRC;
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#define SFW_OBJECT(m_class, m_inherits) \
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private: \
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void operator=(const m_class &p_rval) {} \
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\
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public: \
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virtual String get_class() const { \
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return String(#m_class); \
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} \
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virtual const StringName *_get_class_namev() const { \
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if (!_class_name) \
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_class_name = get_class_static(); \
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return &_class_name; \
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} \
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static void *get_class_ptr_static() { \
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static int ptr; \
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return &ptr; \
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} \
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static String get_class_static() { \
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return String(#m_class); \
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} \
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static String get_parent_class_static() { \
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return m_inherits::get_class_static(); \
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} \
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static void get_inheritance_list_static(Vector<String> *p_inheritance_list) { \
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m_inherits::get_inheritance_list_static(p_inheritance_list); \
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p_inheritance_list->push_back(String(#m_class)); \
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} \
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static String inherits_static() { \
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return String(#m_inherits); \
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} \
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virtual bool is_class(const String &p_class) const { \
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return (p_class == (#m_class)) ? true : m_inherits::is_class(p_class); \
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} \
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virtual bool is_class_ptr(void *p_ptr) const { \
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return (p_ptr == get_class_ptr_static()) ? true : m_inherits::is_class_ptr(p_ptr); \
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} \
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static void get_valid_parents_static(Vector<String> *p_parents) { \
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if (m_class::_get_valid_parents_static != m_inherits::_get_valid_parents_static) { \
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m_class::_get_valid_parents_static(p_parents); \
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} \
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m_inherits::get_valid_parents_static(p_parents); \
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} \
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_FORCE_INLINE_ void (Object::*_get_notification() const)(int) { \
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return (void(Object::*)(int)) & m_class::_notification; \
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} \
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virtual void _notificationv(int p_notification, bool p_reversed) { \
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if (!p_reversed) \
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m_inherits::_notificationv(p_notification, p_reversed); \
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if (m_class::_get_notification() != m_inherits::_get_notification()) { \
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_notification(p_notification); \
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} \
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if (p_reversed) \
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m_inherits::_notificationv(p_notification, p_reversed); \
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} \
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_FORCE_INLINE_ bool (Object::*_get_get() const)(const StringName &p_name, Variant &) const { \
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return (bool(Object::*)(const StringName &, Variant &) const) & m_class::_get; \
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} \
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virtual bool _getv(const StringName &p_name, Variant &r_ret) const { \
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if (m_class::_get_get() != m_inherits::_get_get()) { \
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if (_get(p_name, r_ret)) \
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return true; \
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} \
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return m_inherits::_getv(p_name, r_ret); \
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} \
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_FORCE_INLINE_ bool (Object::*_get_set() const)(const StringName &p_name, const Variant &p_property) { \
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return (bool(Object::*)(const StringName &, const Variant &)) & m_class::_set; \
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} \
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virtual bool _setv(const StringName &p_name, const Variant &p_property) { \
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if (m_inherits::_setv(p_name, p_property)) \
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return true; \
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if (m_class::_get_set() != m_inherits::_get_set()) { \
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return _set(p_name, p_property); \
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} \
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return false; \
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} \
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\
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private:
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class Object {
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public:
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enum {
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NOTIFICATION_POSTINITIALIZE = 0,
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NOTIFICATION_PREDELETE = 1
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};
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void set(const StringName &p_name, const Variant &p_value, bool *r_valid = nullptr);
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Variant get(const StringName &p_name, bool *r_valid = nullptr) const;
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//less than. < "operator" used for cutrom sorting Arrays.
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virtual bool lt(const Variant &p_value_l, const Variant &p_value_r);
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virtual String get_class() const { return "Object"; }
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static void *get_class_ptr_static() {
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static int ptr;
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return &ptr;
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}
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static String get_class_static() { return "Object"; }
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static String get_parent_class_static() { return String(); }
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static void get_inheritance_list_static(Vector<String> *p_inheritance_list) { p_inheritance_list->push_back("Object"); }
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virtual bool is_class(const String &p_class) const { return (p_class == "Object"); }
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virtual bool is_class_ptr(void *p_ptr) const { return get_class_ptr_static() == p_ptr; }
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static void get_valid_parents_static(Vector<String> *p_parents) {}
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static void _get_valid_parents_static(Vector<String> *p_parents) {}
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virtual const StringName *_get_class_namev() const {
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if (!_class_name) {
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_class_name = get_class_static();
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}
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return &_class_name;
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}
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_FORCE_INLINE_ const StringName &get_class_name() const {
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if (!_class_ptr) {
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return *_get_class_namev();
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} else {
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return *_class_ptr;
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}
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}
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ObjectRC *_use_rc();
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_FORCE_INLINE_ ObjectID get_instance_id() const {
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return _instance_id;
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}
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void notification(int p_notification, bool p_reversed = false);
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virtual String to_string();
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bool _is_queued_for_deletion;
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bool is_queued_for_deletion() const {
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return _is_queued_for_deletion;
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}
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void cancel_free();
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bool has_meta(const String &p_name) const;
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void set_meta(const String &p_name, const Variant &p_value);
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void remove_meta(const String &p_name);
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Variant get_meta(const String &p_name, const Variant &p_default = Variant()) const;
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void get_meta_list(List<String> *p_list) const;
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Object();
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virtual ~Object();
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template <class T>
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static T *cast_to(Object *p_object) {
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if (!p_object)
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return NULL;
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if (p_object->is_class_ptr(T::get_class_ptr_static()))
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return static_cast<T *>(p_object);
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else
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return NULL;
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}
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template <class T>
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static const T *cast_to(const Object *p_object) {
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if (!p_object)
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return NULL;
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if (p_object->is_class_ptr(T::get_class_ptr_static()))
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return static_cast<const T *>(p_object);
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else
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return NULL;
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}
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protected:
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_FORCE_INLINE_ void (Object::*_get_notification() const)(int) {
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return &Object::_notification;
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}
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bool _set(const StringName &p_name, const Variant &p_property) {
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return false;
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};
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bool _get(const StringName &p_name, Variant &r_property) const {
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return false;
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};
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virtual bool _setv(const StringName &p_name, const Variant &p_property) {
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return false;
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};
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virtual bool _getv(const StringName &p_name, Variant &r_property) const {
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return false;
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};
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_FORCE_INLINE_ bool (Object::*_get_get() const)(const StringName &p_name, Variant &r_ret) const {
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return &Object::_get;
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}
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_FORCE_INLINE_ bool (Object::*_get_set() const)(const StringName &p_name, const Variant &p_property) {
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return &Object::_set;
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}
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virtual void _notificationv(int p_notification, bool p_reversed){};
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void _notification(int p_notification){};
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friend bool predelete_handler(Object *);
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friend void postinitialize_handler(Object *);
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int _predelete_ok;
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bool _predelete();
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void _postinitialize();
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mutable StringName _class_name;
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mutable const StringName *_class_ptr;
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ObjectID _instance_id;
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std::atomic<ObjectRC *> _rc;
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Dictionary metadata;
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};
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bool predelete_handler(Object *p_object);
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void postinitialize_handler(Object *p_object);
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class ObjectDB {
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struct ObjectPtrHash {
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static _FORCE_INLINE_ uint32_t hash(const Object *p_obj) {
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union {
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const Object *p;
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unsigned long i;
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} u;
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u.p = p_obj;
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return HashMapHasherDefault::hash((uint64_t)u.i);
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}
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};
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static HashMap<ObjectID, Object *> instances;
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static HashMap<Object *, ObjectID, ObjectPtrHash> instance_checks;
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static ObjectID instance_counter;
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friend class Object;
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friend void unregister_core_types();
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static RWLock rw_lock;
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static void cleanup();
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static ObjectID add_instance(Object *p_object);
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static void remove_instance(Object *p_object);
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friend void register_core_types();
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public:
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typedef void (*DebugFunc)(Object *p_obj);
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static Object *get_instance(ObjectID p_instance_id);
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static void debug_objects(DebugFunc p_func);
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static int get_object_count();
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// This one may give false positives because a new object may be allocated at the same memory of a previously freed one
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_FORCE_INLINE_ static bool instance_validate(Object *p_ptr) {
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rw_lock.read_lock();
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bool exists = instance_checks.has(p_ptr);
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rw_lock.read_unlock();
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return exists;
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}
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};
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//--STRIP
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#endif
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//--STRIP
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