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godot/core/object/object.h
David Snopek c6b0d4aae3 Add GDExtension function to get Object class name
2023-05-22 06:58:59 -05:00

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/**************************************************************************/
/* object.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 OBJECT_H
#define OBJECT_H
#include "core/extension/gdextension_interface.h"
#include "core/object/message_queue.h"
#include "core/object/object_id.h"
#include "core/os/rw_lock.h"
#include "core/os/spin_lock.h"
#include "core/templates/hash_map.h"
#include "core/templates/hash_set.h"
#include "core/templates/list.h"
#include "core/templates/rb_map.h"
#include "core/templates/safe_refcount.h"
#include "core/variant/callable_bind.h"
#include "core/variant/variant.h"
template <typename T>
class TypedArray;
enum PropertyHint {
PROPERTY_HINT_NONE, ///< no hint provided.
PROPERTY_HINT_RANGE, ///< hint_text = "min,max[,step][,or_greater][,or_less][,hide_slider][,radians][,degrees][,exp][,suffix:<keyword>] range.
PROPERTY_HINT_ENUM, ///< hint_text= "val1,val2,val3,etc"
PROPERTY_HINT_ENUM_SUGGESTION, ///< hint_text= "val1,val2,val3,etc"
PROPERTY_HINT_EXP_EASING, /// exponential easing function (Math::ease) use "attenuation" hint string to revert (flip h), "positive_only" to exclude in-out and out-in. (ie: "attenuation,positive_only")
PROPERTY_HINT_LINK,
PROPERTY_HINT_FLAGS, ///< hint_text= "flag1,flag2,etc" (as bit flags)
PROPERTY_HINT_LAYERS_2D_RENDER,
PROPERTY_HINT_LAYERS_2D_PHYSICS,
PROPERTY_HINT_LAYERS_2D_NAVIGATION,
PROPERTY_HINT_LAYERS_3D_RENDER,
PROPERTY_HINT_LAYERS_3D_PHYSICS,
PROPERTY_HINT_LAYERS_3D_NAVIGATION,
PROPERTY_HINT_FILE, ///< a file path must be passed, hint_text (optionally) is a filter "*.png,*.wav,*.doc,"
PROPERTY_HINT_DIR, ///< a directory path must be passed
PROPERTY_HINT_GLOBAL_FILE, ///< a file path must be passed, hint_text (optionally) is a filter "*.png,*.wav,*.doc,"
PROPERTY_HINT_GLOBAL_DIR, ///< a directory path must be passed
PROPERTY_HINT_RESOURCE_TYPE, ///< a resource object type
PROPERTY_HINT_MULTILINE_TEXT, ///< used for string properties that can contain multiple lines
PROPERTY_HINT_EXPRESSION, ///< used for string properties that can contain multiple lines
PROPERTY_HINT_PLACEHOLDER_TEXT, ///< used to set a placeholder text for string properties
PROPERTY_HINT_COLOR_NO_ALPHA, ///< used for ignoring alpha component when editing a color
PROPERTY_HINT_OBJECT_ID,
PROPERTY_HINT_TYPE_STRING, ///< a type string, the hint is the base type to choose
PROPERTY_HINT_NODE_PATH_TO_EDITED_NODE, ///< so something else can provide this (used in scripts)
PROPERTY_HINT_OBJECT_TOO_BIG, ///< object is too big to send
PROPERTY_HINT_NODE_PATH_VALID_TYPES,
PROPERTY_HINT_SAVE_FILE, ///< a file path must be passed, hint_text (optionally) is a filter "*.png,*.wav,*.doc,". This opens a save dialog
PROPERTY_HINT_GLOBAL_SAVE_FILE, ///< a file path must be passed, hint_text (optionally) is a filter "*.png,*.wav,*.doc,". This opens a save dialog
PROPERTY_HINT_INT_IS_OBJECTID,
PROPERTY_HINT_INT_IS_POINTER,
PROPERTY_HINT_ARRAY_TYPE,
PROPERTY_HINT_LOCALE_ID,
PROPERTY_HINT_LOCALIZABLE_STRING,
PROPERTY_HINT_NODE_TYPE, ///< a node object type
PROPERTY_HINT_HIDE_QUATERNION_EDIT, /// Only Node3D::transform should hide the quaternion editor.
PROPERTY_HINT_PASSWORD,
PROPERTY_HINT_LAYERS_AVOIDANCE,
PROPERTY_HINT_MAX,
};
enum PropertyUsageFlags {
PROPERTY_USAGE_NONE = 0,
PROPERTY_USAGE_STORAGE = 1 << 1,
PROPERTY_USAGE_EDITOR = 1 << 2,
PROPERTY_USAGE_INTERNAL = 1 << 3,
PROPERTY_USAGE_CHECKABLE = 1 << 4, // Used for editing global variables.
PROPERTY_USAGE_CHECKED = 1 << 5, // Used for editing global variables.
PROPERTY_USAGE_GROUP = 1 << 6, // Used for grouping props in the editor.
PROPERTY_USAGE_CATEGORY = 1 << 7,
PROPERTY_USAGE_SUBGROUP = 1 << 8,
PROPERTY_USAGE_CLASS_IS_BITFIELD = 1 << 9,
PROPERTY_USAGE_NO_INSTANCE_STATE = 1 << 10,
PROPERTY_USAGE_RESTART_IF_CHANGED = 1 << 11,
PROPERTY_USAGE_SCRIPT_VARIABLE = 1 << 12,
PROPERTY_USAGE_STORE_IF_NULL = 1 << 13,
PROPERTY_USAGE_UPDATE_ALL_IF_MODIFIED = 1 << 14,
PROPERTY_USAGE_SCRIPT_DEFAULT_VALUE = 1 << 15,
PROPERTY_USAGE_CLASS_IS_ENUM = 1 << 16,
PROPERTY_USAGE_NIL_IS_VARIANT = 1 << 17,
PROPERTY_USAGE_ARRAY = 1 << 18, // Used in the inspector to group properties as elements of an array.
PROPERTY_USAGE_ALWAYS_DUPLICATE = 1 << 19, // When duplicating a resource, always duplicate, even with subresource duplication disabled.
PROPERTY_USAGE_NEVER_DUPLICATE = 1 << 20, // When duplicating a resource, never duplicate, even with subresource duplication enabled.
PROPERTY_USAGE_HIGH_END_GFX = 1 << 21,
PROPERTY_USAGE_NODE_PATH_FROM_SCENE_ROOT = 1 << 22,
PROPERTY_USAGE_RESOURCE_NOT_PERSISTENT = 1 << 23,
PROPERTY_USAGE_KEYING_INCREMENTS = 1 << 24, // Used in inspector to increment property when keyed in animation player.
PROPERTY_USAGE_DEFERRED_SET_RESOURCE = 1 << 25, // when loading, the resource for this property can be set at the end of loading.
PROPERTY_USAGE_EDITOR_INSTANTIATE_OBJECT = 1 << 26, // For Object properties, instantiate them when creating in editor.
PROPERTY_USAGE_EDITOR_BASIC_SETTING = 1 << 27, //for project or editor settings, show when basic settings are selected.
PROPERTY_USAGE_READ_ONLY = 1 << 28, // Mark a property as read-only in the inspector.
PROPERTY_USAGE_SECRET = 1 << 29, // Export preset credentials that should be stored separately from the rest of the export config.
PROPERTY_USAGE_DEFAULT = PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_EDITOR,
PROPERTY_USAGE_NO_EDITOR = PROPERTY_USAGE_STORAGE,
};
#define ADD_SIGNAL(m_signal) ::ClassDB::add_signal(get_class_static(), m_signal)
#define ADD_PROPERTY(m_property, m_setter, m_getter) ::ClassDB::add_property(get_class_static(), m_property, _scs_create(m_setter), _scs_create(m_getter))
#define ADD_PROPERTYI(m_property, m_setter, m_getter, m_index) ::ClassDB::add_property(get_class_static(), m_property, _scs_create(m_setter), _scs_create(m_getter), m_index)
#define ADD_PROPERTY_DEFAULT(m_property, m_default) ::ClassDB::set_property_default_value(get_class_static(), m_property, m_default)
#define ADD_GROUP(m_name, m_prefix) ::ClassDB::add_property_group(get_class_static(), m_name, m_prefix)
#define ADD_GROUP_INDENT(m_name, m_prefix, m_depth) ::ClassDB::add_property_group(get_class_static(), m_name, m_prefix, m_depth)
#define ADD_SUBGROUP(m_name, m_prefix) ::ClassDB::add_property_subgroup(get_class_static(), m_name, m_prefix)
#define ADD_SUBGROUP_INDENT(m_name, m_prefix, m_depth) ::ClassDB::add_property_subgroup(get_class_static(), m_name, m_prefix, m_depth)
#define ADD_LINKED_PROPERTY(m_property, m_linked_property) ::ClassDB::add_linked_property(get_class_static(), m_property, m_linked_property)
#define ADD_ARRAY_COUNT(m_label, m_count_property, m_count_property_setter, m_count_property_getter, m_prefix) ClassDB::add_property_array_count(get_class_static(), m_label, m_count_property, _scs_create(m_count_property_setter), _scs_create(m_count_property_getter), m_prefix)
#define ADD_ARRAY_COUNT_WITH_USAGE_FLAGS(m_label, m_count_property, m_count_property_setter, m_count_property_getter, m_prefix, m_property_usage_flags) ClassDB::add_property_array_count(get_class_static(), m_label, m_count_property, _scs_create(m_count_property_setter), _scs_create(m_count_property_getter), m_prefix, m_property_usage_flags)
#define ADD_ARRAY(m_array_path, m_prefix) ClassDB::add_property_array(get_class_static(), m_array_path, m_prefix)
// Helper macro to use with PROPERTY_HINT_ARRAY_TYPE for arrays of specific resources:
// PropertyInfo(Variant::ARRAY, "fallbacks", PROPERTY_HINT_ARRAY_TYPE, MAKE_RESOURCE_TYPE_HINT("Font")
#define MAKE_RESOURCE_TYPE_HINT(m_type) vformat("%s/%s:%s", Variant::OBJECT, PROPERTY_HINT_RESOURCE_TYPE, m_type)
struct PropertyInfo {
Variant::Type type = Variant::NIL;
String name;
StringName class_name; // For classes
PropertyHint hint = PROPERTY_HINT_NONE;
String hint_string;
uint32_t usage = PROPERTY_USAGE_DEFAULT;
// If you are thinking about adding another member to this class, ask the maintainer (Juan) first.
_FORCE_INLINE_ PropertyInfo added_usage(uint32_t p_fl) const {
PropertyInfo pi = *this;
pi.usage |= p_fl;
return pi;
}
operator Dictionary() const;
static PropertyInfo from_dict(const Dictionary &p_dict);
PropertyInfo() {}
PropertyInfo(const Variant::Type p_type, const String p_name, const PropertyHint p_hint = PROPERTY_HINT_NONE, const String &p_hint_string = "", const uint32_t p_usage = PROPERTY_USAGE_DEFAULT, const StringName &p_class_name = StringName()) :
type(p_type),
name(p_name),
hint(p_hint),
hint_string(p_hint_string),
usage(p_usage) {
if (hint == PROPERTY_HINT_RESOURCE_TYPE) {
class_name = hint_string;
} else {
class_name = p_class_name;
}
}
PropertyInfo(const StringName &p_class_name) :
type(Variant::OBJECT),
class_name(p_class_name) {}
explicit PropertyInfo(const GDExtensionPropertyInfo &pinfo) :
type((Variant::Type)pinfo.type),
name(*reinterpret_cast<StringName *>(pinfo.name)),
class_name(*reinterpret_cast<StringName *>(pinfo.class_name)),
hint((PropertyHint)pinfo.hint),
hint_string(*reinterpret_cast<String *>(pinfo.hint_string)),
usage(pinfo.usage) {}
bool operator==(const PropertyInfo &p_info) const {
return ((type == p_info.type) &&
(name == p_info.name) &&
(class_name == p_info.class_name) &&
(hint == p_info.hint) &&
(hint_string == p_info.hint_string) &&
(usage == p_info.usage));
}
bool operator<(const PropertyInfo &p_info) const {
return name < p_info.name;
}
};
TypedArray<Dictionary> convert_property_list(const List<PropertyInfo> *p_list);
enum MethodFlags {
METHOD_FLAG_NORMAL = 1,
METHOD_FLAG_EDITOR = 2,
METHOD_FLAG_CONST = 4,
METHOD_FLAG_VIRTUAL = 8,
METHOD_FLAG_VARARG = 16,
METHOD_FLAG_STATIC = 32,
METHOD_FLAG_OBJECT_CORE = 64,
METHOD_FLAGS_DEFAULT = METHOD_FLAG_NORMAL,
};
struct MethodInfo {
String name;
PropertyInfo return_val;
uint32_t flags = METHOD_FLAGS_DEFAULT;
int id = 0;
List<PropertyInfo> arguments;
Vector<Variant> default_arguments;
int return_val_metadata = 0;
Vector<int> arguments_metadata;
int get_argument_meta(int p_arg) const {
ERR_FAIL_COND_V(p_arg < -1 || p_arg > arguments.size(), 0);
if (p_arg == -1) {
return return_val_metadata;
}
return arguments_metadata.size() > p_arg ? arguments_metadata[p_arg] : 0;
}
inline bool operator==(const MethodInfo &p_method) const { return id == p_method.id; }
inline bool operator<(const MethodInfo &p_method) const { return id == p_method.id ? (name < p_method.name) : (id < p_method.id); }
operator Dictionary() const;
static MethodInfo from_dict(const Dictionary &p_dict);
MethodInfo() {}
explicit MethodInfo(const GDExtensionMethodInfo &pinfo) :
name(*reinterpret_cast<StringName *>(pinfo.name)),
return_val(PropertyInfo(pinfo.return_value)),
flags(pinfo.flags),
id(pinfo.id) {
for (uint32_t j = 0; j < pinfo.argument_count; j++) {
arguments.push_back(PropertyInfo(pinfo.arguments[j]));
}
const Variant *def_values = (const Variant *)pinfo.default_arguments;
for (uint32_t j = 0; j < pinfo.default_argument_count; j++) {
default_arguments.push_back(def_values[j]);
}
}
void _push_params(const PropertyInfo &p_param) {
arguments.push_back(p_param);
}
template <typename... VarArgs>
void _push_params(const PropertyInfo &p_param, VarArgs... p_params) {
arguments.push_back(p_param);
_push_params(p_params...);
}
MethodInfo(const String &p_name) { name = p_name; }
template <typename... VarArgs>
MethodInfo(const String &p_name, VarArgs... p_params) {
name = p_name;
_push_params(p_params...);
}
MethodInfo(Variant::Type ret) { return_val.type = ret; }
MethodInfo(Variant::Type ret, const String &p_name) {
return_val.type = ret;
name = p_name;
}
template <typename... VarArgs>
MethodInfo(Variant::Type ret, const String &p_name, VarArgs... p_params) {
name = p_name;
return_val.type = ret;
_push_params(p_params...);
}
MethodInfo(const PropertyInfo &p_ret, const String &p_name) {
return_val = p_ret;
name = p_name;
}
template <typename... VarArgs>
MethodInfo(const PropertyInfo &p_ret, const String &p_name, VarArgs... p_params) {
return_val = p_ret;
name = p_name;
_push_params(p_params...);
}
};
// API used to extend in GDExtension and other C compatible compiled languages.
class MethodBind;
class GDExtension;
struct ObjectGDExtension {
GDExtension *library = nullptr;
ObjectGDExtension *parent = nullptr;
List<ObjectGDExtension *> children;
StringName parent_class_name;
StringName class_name;
bool editor_class = false;
bool is_virtual = false;
bool is_abstract = false;
GDExtensionClassSet set;
GDExtensionClassGet get;
GDExtensionClassGetPropertyList get_property_list;
GDExtensionClassFreePropertyList free_property_list;
GDExtensionClassPropertyCanRevert property_can_revert;
GDExtensionClassPropertyGetRevert property_get_revert;
GDExtensionClassNotification notification;
GDExtensionClassToString to_string;
GDExtensionClassReference reference;
GDExtensionClassReference unreference;
GDExtensionClassGetRID get_rid;
_FORCE_INLINE_ bool is_class(const String &p_class) const {
const ObjectGDExtension *e = this;
while (e) {
if (p_class == e->class_name.operator String()) {
return true;
}
e = e->parent;
}
return false;
}
void *class_userdata = nullptr;
GDExtensionClassCreateInstance create_instance;
GDExtensionClassFreeInstance free_instance;
GDExtensionClassGetVirtual get_virtual;
};
#define GDVIRTUAL_CALL(m_name, ...) _gdvirtual_##m_name##_call<false>(__VA_ARGS__)
#define GDVIRTUAL_CALL_PTR(m_obj, m_name, ...) m_obj->_gdvirtual_##m_name##_call<false>(__VA_ARGS__)
#define GDVIRTUAL_REQUIRED_CALL(m_name, ...) _gdvirtual_##m_name##_call<true>(__VA_ARGS__)
#define GDVIRTUAL_REQUIRED_CALL_PTR(m_obj, m_name, ...) m_obj->_gdvirtual_##m_name##_call<true>(__VA_ARGS__)
#ifdef DEBUG_METHODS_ENABLED
#define GDVIRTUAL_BIND(m_name, ...) ::ClassDB::add_virtual_method(get_class_static(), _gdvirtual_##m_name##_get_method_info(), true, sarray(__VA_ARGS__));
#else
#define GDVIRTUAL_BIND(m_name, ...)
#endif
#define GDVIRTUAL_IS_OVERRIDDEN(m_name) _gdvirtual_##m_name##_overridden()
#define GDVIRTUAL_IS_OVERRIDDEN_PTR(m_obj, m_name) m_obj->_gdvirtual_##m_name##_overridden()
/*
* The following is an incomprehensible blob of hacks and workarounds to
* compensate for many of the fallacies in C++. As a plus, this macro pretty
* much alone defines the object model.
*/
#define REVERSE_GET_PROPERTY_LIST \
public: \
_FORCE_INLINE_ bool _is_gpl_reversed() const { return true; }; \
\
private:
#define UNREVERSE_GET_PROPERTY_LIST \
public: \
_FORCE_INLINE_ bool _is_gpl_reversed() const { return false; }; \
\
private:
#define GDCLASS(m_class, m_inherits) \
private: \
void operator=(const m_class &p_rval) {} \
friend class ::ClassDB; \
\
public: \
static constexpr bool _class_is_enabled = !bool(GD_IS_DEFINED(ClassDB_Disable_##m_class)) && m_inherits::_class_is_enabled; \
virtual String get_class() const override { \
if (_get_extension()) { \
return _get_extension()->class_name.operator String(); \
} \
return String(#m_class); \
} \
virtual const StringName *_get_class_namev() const override { \
static StringName _class_name_static; \
if (unlikely(!_class_name_static)) { \
StringName::assign_static_unique_class_name(&_class_name_static, #m_class); \
} \
return &_class_name_static; \
} \
static _FORCE_INLINE_ void *get_class_ptr_static() { \
static int ptr; \
return &ptr; \
} \
static _FORCE_INLINE_ String get_class_static() { \
return String(#m_class); \
} \
static _FORCE_INLINE_ String get_parent_class_static() { \
return m_inherits::get_class_static(); \
} \
static void get_inheritance_list_static(List<String> *p_inheritance_list) { \
m_inherits::get_inheritance_list_static(p_inheritance_list); \
p_inheritance_list->push_back(String(#m_class)); \
} \
virtual bool is_class(const String &p_class) const override { \
if (_get_extension() && _get_extension()->is_class(p_class)) { \
return true; \
} \
return (p_class == (#m_class)) ? true : m_inherits::is_class(p_class); \
} \
virtual bool is_class_ptr(void *p_ptr) const override { return (p_ptr == get_class_ptr_static()) ? true : m_inherits::is_class_ptr(p_ptr); } \
\
static void get_valid_parents_static(List<String> *p_parents) { \
if (m_class::_get_valid_parents_static != m_inherits::_get_valid_parents_static) { \
m_class::_get_valid_parents_static(p_parents); \
} \
\
m_inherits::get_valid_parents_static(p_parents); \
} \
\
protected: \
_FORCE_INLINE_ static void (*_get_bind_methods())() { \
return &m_class::_bind_methods; \
} \
\
public: \
static void initialize_class() { \
static bool initialized = false; \
if (initialized) { \
return; \
} \
m_inherits::initialize_class(); \
::ClassDB::_add_class<m_class>(); \
if (m_class::_get_bind_methods() != m_inherits::_get_bind_methods()) { \
_bind_methods(); \
} \
initialized = true; \
} \
\
protected: \
virtual void _initialize_classv() override { \
initialize_class(); \
} \
_FORCE_INLINE_ bool (Object::*_get_get() const)(const StringName &p_name, Variant &) const { \
return (bool(Object::*)(const StringName &, Variant &) const) & m_class::_get; \
} \
virtual bool _getv(const StringName &p_name, Variant &r_ret) const override { \
if (m_class::_get_get() != m_inherits::_get_get()) { \
if (_get(p_name, r_ret)) { \
return true; \
} \
} \
return m_inherits::_getv(p_name, r_ret); \
} \
_FORCE_INLINE_ bool (Object::*_get_set() const)(const StringName &p_name, const Variant &p_property) { \
return (bool(Object::*)(const StringName &, const Variant &)) & m_class::_set; \
} \
virtual bool _setv(const StringName &p_name, const Variant &p_property) override { \
if (m_inherits::_setv(p_name, p_property)) { \
return true; \
} \
if (m_class::_get_set() != m_inherits::_get_set()) { \
return _set(p_name, p_property); \
} \
return false; \
} \
_FORCE_INLINE_ void (Object::*_get_get_property_list() const)(List<PropertyInfo> * p_list) const { \
return (void(Object::*)(List<PropertyInfo> *) const) & m_class::_get_property_list; \
} \
virtual void _get_property_listv(List<PropertyInfo> *p_list, bool p_reversed) const override { \
if (!p_reversed) { \
m_inherits::_get_property_listv(p_list, p_reversed); \
} \
p_list->push_back(PropertyInfo(Variant::NIL, get_class_static(), PROPERTY_HINT_NONE, String(), PROPERTY_USAGE_CATEGORY)); \
if (!_is_gpl_reversed()) { \
::ClassDB::get_property_list(#m_class, p_list, true, this); \
} \
if (m_class::_get_get_property_list() != m_inherits::_get_get_property_list()) { \
_get_property_list(p_list); \
} \
if (_is_gpl_reversed()) { \
::ClassDB::get_property_list(#m_class, p_list, true, this); \
} \
if (p_reversed) { \
m_inherits::_get_property_listv(p_list, p_reversed); \
} \
} \
_FORCE_INLINE_ void (Object::*_get_validate_property() const)(PropertyInfo & p_property) const { \
return (void(Object::*)(PropertyInfo &) const) & m_class::_validate_property; \
} \
virtual void _validate_propertyv(PropertyInfo &p_property) const override { \
m_inherits::_validate_propertyv(p_property); \
if (m_class::_get_validate_property() != m_inherits::_get_validate_property()) { \
_validate_property(p_property); \
} \
} \
_FORCE_INLINE_ bool (Object::*_get_property_can_revert() const)(const StringName &p_name) const { \
return (bool(Object::*)(const StringName &) const) & m_class::_property_can_revert; \
} \
virtual bool _property_can_revertv(const StringName &p_name) const override { \
if (m_class::_get_property_can_revert() != m_inherits::_get_property_can_revert()) { \
if (_property_can_revert(p_name)) { \
return true; \
} \
} \
return m_inherits::_property_can_revertv(p_name); \
} \
_FORCE_INLINE_ bool (Object::*_get_property_get_revert() const)(const StringName &p_name, Variant &) const { \
return (bool(Object::*)(const StringName &, Variant &) const) & m_class::_property_get_revert; \
} \
virtual bool _property_get_revertv(const StringName &p_name, Variant &r_ret) const override { \
if (m_class::_get_property_get_revert() != m_inherits::_get_property_get_revert()) { \
if (_property_get_revert(p_name, r_ret)) { \
return true; \
} \
} \
return m_inherits::_property_get_revertv(p_name, r_ret); \
} \
_FORCE_INLINE_ void (Object::*_get_notification() const)(int) { \
return (void(Object::*)(int)) & m_class::_notification; \
} \
virtual void _notificationv(int p_notification, bool p_reversed) override { \
if (!p_reversed) { \
m_inherits::_notificationv(p_notification, p_reversed); \
} \
if (m_class::_get_notification() != m_inherits::_get_notification()) { \
_notification(p_notification); \
} \
if (p_reversed) { \
m_inherits::_notificationv(p_notification, p_reversed); \
} \
} \
\
private:
#define OBJ_SAVE_TYPE(m_class) \
public: \
virtual String get_save_class() const override { return #m_class; } \
\
private:
class ScriptInstance;
class Object {
public:
enum ConnectFlags {
CONNECT_DEFERRED = 1,
CONNECT_PERSIST = 2, // hint for scene to save this connection
CONNECT_ONE_SHOT = 4,
CONNECT_REFERENCE_COUNTED = 8,
CONNECT_INHERITED = 16, // Used in editor builds.
};
struct Connection {
::Signal signal;
Callable callable;
uint32_t flags = 0;
bool operator<(const Connection &p_conn) const;
operator Variant() const;
Connection() {}
Connection(const Variant &p_variant);
};
private:
#ifdef DEBUG_ENABLED
friend struct _ObjectDebugLock;
#endif
friend bool predelete_handler(Object *);
friend void postinitialize_handler(Object *);
ObjectGDExtension *_extension = nullptr;
GDExtensionClassInstancePtr _extension_instance = nullptr;
struct SignalData {
struct Slot {
int reference_count = 0;
Connection conn;
List<Connection>::Element *cE = nullptr;
};
MethodInfo user;
HashMap<Callable, Slot, HashableHasher<Callable>> slot_map;
};
HashMap<StringName, SignalData> signal_map;
List<Connection> connections;
#ifdef DEBUG_ENABLED
SafeRefCount _lock_index;
#endif
bool _block_signals = false;
int _predelete_ok = 0;
ObjectID _instance_id;
bool _predelete();
void _postinitialize();
bool _can_translate = true;
bool _emitting = false;
#ifdef TOOLS_ENABLED
bool _edited = false;
uint32_t _edited_version = 0;
HashSet<String> editor_section_folding;
#endif
ScriptInstance *script_instance = nullptr;
Variant script; // Reference does not exist yet, store it in a Variant.
HashMap<StringName, Variant> metadata;
HashMap<StringName, Variant *> metadata_properties;
mutable const StringName *_class_name_ptr = nullptr;
void _add_user_signal(const String &p_name, const Array &p_args = Array());
bool _has_user_signal(const StringName &p_name) const;
Error _emit_signal(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
TypedArray<Dictionary> _get_signal_list() const;
TypedArray<Dictionary> _get_signal_connection_list(const StringName &p_signal) const;
TypedArray<Dictionary> _get_incoming_connections() const;
void _set_bind(const StringName &p_set, const Variant &p_value);
Variant _get_bind(const StringName &p_name) const;
void _set_indexed_bind(const NodePath &p_name, const Variant &p_value);
Variant _get_indexed_bind(const NodePath &p_name) const;
_FORCE_INLINE_ void _construct_object(bool p_reference);
friend class RefCounted;
bool type_is_reference = false;
std::mutex _instance_binding_mutex;
struct InstanceBinding {
void *binding = nullptr;
void *token = nullptr;
GDExtensionInstanceBindingFreeCallback free_callback = nullptr;
GDExtensionInstanceBindingReferenceCallback reference_callback = nullptr;
};
InstanceBinding *_instance_bindings = nullptr;
uint32_t _instance_binding_count = 0;
Object(bool p_reference);
protected:
_FORCE_INLINE_ bool _instance_binding_reference(bool p_reference) {
bool can_die = true;
if (_instance_bindings) {
_instance_binding_mutex.lock();
for (uint32_t i = 0; i < _instance_binding_count; i++) {
if (_instance_bindings[i].reference_callback) {
if (!_instance_bindings[i].reference_callback(_instance_bindings[i].token, _instance_bindings[i].binding, p_reference)) {
can_die = false;
}
}
}
_instance_binding_mutex.unlock();
}
return can_die;
}
friend class GDExtensionMethodBind;
_ALWAYS_INLINE_ const ObjectGDExtension *_get_extension() const { return _extension; }
_ALWAYS_INLINE_ GDExtensionClassInstancePtr _get_extension_instance() const { return _extension_instance; }
virtual void _initialize_classv() { initialize_class(); }
virtual bool _setv(const StringName &p_name, const Variant &p_property) { return false; };
virtual bool _getv(const StringName &p_name, Variant &r_property) const { return false; };
virtual void _get_property_listv(List<PropertyInfo> *p_list, bool p_reversed) const {};
virtual void _validate_propertyv(PropertyInfo &p_property) const {};
virtual bool _property_can_revertv(const StringName &p_name) const { return false; };
virtual bool _property_get_revertv(const StringName &p_name, Variant &r_property) const { return false; };
virtual void _notificationv(int p_notification, bool p_reversed) {}
static void _bind_methods();
bool _set(const StringName &p_name, const Variant &p_property) { return false; };
bool _get(const StringName &p_name, Variant &r_property) const { return false; };
void _get_property_list(List<PropertyInfo> *p_list) const {};
void _validate_property(PropertyInfo &p_property) const {};
bool _property_can_revert(const StringName &p_name) const { return false; };
bool _property_get_revert(const StringName &p_name, Variant &r_property) const { return false; };
void _notification(int p_notification) {}
_FORCE_INLINE_ static void (*_get_bind_methods())() {
return &Object::_bind_methods;
}
_FORCE_INLINE_ bool (Object::*_get_get() const)(const StringName &p_name, Variant &r_ret) const {
return &Object::_get;
}
_FORCE_INLINE_ bool (Object::*_get_set() const)(const StringName &p_name, const Variant &p_property) {
return &Object::_set;
}
_FORCE_INLINE_ void (Object::*_get_get_property_list() const)(List<PropertyInfo> *p_list) const {
return &Object::_get_property_list;
}
_FORCE_INLINE_ void (Object::*_get_validate_property() const)(PropertyInfo &p_property) const {
return &Object::_validate_property;
}
_FORCE_INLINE_ bool (Object::*_get_property_can_revert() const)(const StringName &p_name) const {
return &Object::_property_can_revert;
}
_FORCE_INLINE_ bool (Object::*_get_property_get_revert() const)(const StringName &p_name, Variant &) const {
return &Object::_property_get_revert;
}
_FORCE_INLINE_ void (Object::*_get_notification() const)(int) {
return &Object::_notification;
}
static void get_valid_parents_static(List<String> *p_parents);
static void _get_valid_parents_static(List<String> *p_parents);
Variant _call_bind(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
Variant _call_deferred_bind(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
virtual const StringName *_get_class_namev() const {
static StringName _class_name_static;
if (unlikely(!_class_name_static)) {
StringName::assign_static_unique_class_name(&_class_name_static, "Object");
}
return &_class_name_static;
}
TypedArray<StringName> _get_meta_list_bind() const;
TypedArray<Dictionary> _get_property_list_bind() const;
TypedArray<Dictionary> _get_method_list_bind() const;
void _clear_internal_resource_paths(const Variant &p_var);
friend class ClassDB;
bool _disconnect(const StringName &p_signal, const Callable &p_callable, bool p_force = false);
public: // Should be protected, but bug in clang++.
static void initialize_class();
_FORCE_INLINE_ static void register_custom_data_to_otdb() {}
public:
static constexpr bool _class_is_enabled = true;
void notify_property_list_changed();
static void *get_class_ptr_static() {
static int ptr;
return &ptr;
}
bool _is_gpl_reversed() const { return false; }
void detach_from_objectdb();
_FORCE_INLINE_ ObjectID get_instance_id() const { return _instance_id; }
template <class T>
static T *cast_to(Object *p_object) {
return dynamic_cast<T *>(p_object);
}
template <class T>
static const T *cast_to(const Object *p_object) {
return dynamic_cast<const T *>(p_object);
}
enum {
NOTIFICATION_POSTINITIALIZE = 0,
NOTIFICATION_PREDELETE = 1
};
/* TYPE API */
static void get_inheritance_list_static(List<String> *p_inheritance_list) { p_inheritance_list->push_back("Object"); }
static String get_class_static() { return "Object"; }
static String get_parent_class_static() { return String(); }
virtual String get_class() const {
if (_extension) {
return _extension->class_name.operator String();
}
return "Object";
}
virtual String get_save_class() const { return get_class(); } //class stored when saving
virtual bool is_class(const String &p_class) const {
if (_extension && _extension->is_class(p_class)) {
return true;
}
return (p_class == "Object");
}
virtual bool is_class_ptr(void *p_ptr) const { return get_class_ptr_static() == p_ptr; }
_FORCE_INLINE_ const StringName &get_class_name() const {
if (_extension) {
// Can't put inside the unlikely as constructor can run it
return _extension->class_name;
}
if (unlikely(!_class_name_ptr)) {
// While class is initializing / deinitializing, constructors and destructurs
// need access to the proper class at the proper stage.
return *_get_class_namev();
}
return *_class_name_ptr;
}
_FORCE_INLINE_ const StringName &get_class_name_for_extension(const GDExtension *p_library) const {
// Only return the class name per the extension if it matches the given p_library.
if (_extension && _extension->library == p_library) {
return _extension->class_name;
}
// Otherwise, return the name of the built-in class.
if (unlikely(!_class_name_ptr)) {
return *_get_class_namev();
}
return *_class_name_ptr;
}
/* IAPI */
void set(const StringName &p_name, const Variant &p_value, bool *r_valid = nullptr);
Variant get(const StringName &p_name, bool *r_valid = nullptr) const;
void set_indexed(const Vector<StringName> &p_names, const Variant &p_value, bool *r_valid = nullptr);
Variant get_indexed(const Vector<StringName> &p_names, bool *r_valid = nullptr) const;
void get_property_list(List<PropertyInfo> *p_list, bool p_reversed = false) const;
void validate_property(PropertyInfo &p_property) const;
bool property_can_revert(const StringName &p_name) const;
Variant property_get_revert(const StringName &p_name) const;
bool has_method(const StringName &p_method) const;
void get_method_list(List<MethodInfo> *p_list) const;
Variant callv(const StringName &p_method, const Array &p_args);
virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error);
virtual Variant call_const(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error);
template <typename... VarArgs>
Variant call(const StringName &p_method, VarArgs... p_args) {
Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
const Variant *argptrs[sizeof...(p_args) + 1];
for (uint32_t i = 0; i < sizeof...(p_args); i++) {
argptrs[i] = &args[i];
}
Callable::CallError cerr;
return callp(p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args), cerr);
}
void notification(int p_notification, bool p_reversed = false);
virtual String to_string();
// Used mainly by script, get and set all INCLUDING string.
virtual Variant getvar(const Variant &p_key, bool *r_valid = nullptr) const;
virtual void setvar(const Variant &p_key, const Variant &p_value, bool *r_valid = nullptr);
/* SCRIPT */
// When in debug, some non-virtual functions can be overridden for multithreaded guards.
#ifdef DEBUG_ENABLED
#define MTVIRTUAL virtual
#else
#define MTVIRTUAL
#endif
MTVIRTUAL void set_script(const Variant &p_script);
MTVIRTUAL Variant get_script() const;
MTVIRTUAL bool has_meta(const StringName &p_name) const;
MTVIRTUAL void set_meta(const StringName &p_name, const Variant &p_value);
MTVIRTUAL void remove_meta(const StringName &p_name);
MTVIRTUAL Variant get_meta(const StringName &p_name, const Variant &p_default = Variant()) const;
MTVIRTUAL void get_meta_list(List<StringName> *p_list) const;
#ifdef TOOLS_ENABLED
void set_edited(bool p_edited);
bool is_edited() const;
// This function is used to check when something changed beyond a point, it's used mainly for generating previews.
uint32_t get_edited_version() const;
#endif
void set_script_instance(ScriptInstance *p_instance);
_FORCE_INLINE_ ScriptInstance *get_script_instance() const { return script_instance; }
// Some script languages can't control instance creation, so this function eases the process.
void set_script_and_instance(const Variant &p_script, ScriptInstance *p_instance);
void add_user_signal(const MethodInfo &p_signal);
template <typename... VarArgs>
Error emit_signal(const StringName &p_name, VarArgs... p_args) {
Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
const Variant *argptrs[sizeof...(p_args) + 1];
for (uint32_t i = 0; i < sizeof...(p_args); i++) {
argptrs[i] = &args[i];
}
return emit_signalp(p_name, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
}
MTVIRTUAL Error emit_signalp(const StringName &p_name, const Variant **p_args, int p_argcount);
MTVIRTUAL bool has_signal(const StringName &p_name) const;
MTVIRTUAL void get_signal_list(List<MethodInfo> *p_signals) const;
MTVIRTUAL void get_signal_connection_list(const StringName &p_signal, List<Connection> *p_connections) const;
MTVIRTUAL void get_all_signal_connections(List<Connection> *p_connections) const;
MTVIRTUAL int get_persistent_signal_connection_count() const;
MTVIRTUAL void get_signals_connected_to_this(List<Connection> *p_connections) const;
MTVIRTUAL Error connect(const StringName &p_signal, const Callable &p_callable, uint32_t p_flags = 0);
MTVIRTUAL void disconnect(const StringName &p_signal, const Callable &p_callable);
MTVIRTUAL bool is_connected(const StringName &p_signal, const Callable &p_callable) const;
template <typename... VarArgs>
void call_deferred(const StringName &p_name, VarArgs... p_args) {
MessageQueue::get_singleton()->push_call(this, p_name, p_args...);
}
void set_deferred(const StringName &p_property, const Variant &p_value);
void set_block_signals(bool p_block);
bool is_blocking_signals() const;
Variant::Type get_static_property_type(const StringName &p_property, bool *r_valid = nullptr) const;
Variant::Type get_static_property_type_indexed(const Vector<StringName> &p_path, bool *r_valid = nullptr) const;
virtual void get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const;
// Translate message (internationalization).
String tr(const StringName &p_message, const StringName &p_context = "") const;
String tr_n(const StringName &p_message, const StringName &p_message_plural, int p_n, const StringName &p_context = "") const;
bool _is_queued_for_deletion = false; // Set to true by SceneTree::queue_delete().
bool is_queued_for_deletion() const;
_FORCE_INLINE_ void set_message_translation(bool p_enable) { _can_translate = p_enable; }
_FORCE_INLINE_ bool can_translate_messages() const { return _can_translate; }
#ifdef TOOLS_ENABLED
void editor_set_section_unfold(const String &p_section, bool p_unfolded);
bool editor_is_section_unfolded(const String &p_section);
const HashSet<String> &editor_get_section_folding() const { return editor_section_folding; }
void editor_clear_section_folding() { editor_section_folding.clear(); }
#endif
// Used by script languages to store binding data.
void *get_instance_binding(void *p_token, const GDExtensionInstanceBindingCallbacks *p_callbacks);
// Used on creation by binding only.
void set_instance_binding(void *p_token, void *p_binding, const GDExtensionInstanceBindingCallbacks *p_callbacks);
bool has_instance_binding(void *p_token);
void clear_internal_resource_paths();
_ALWAYS_INLINE_ bool is_ref_counted() const { return type_is_reference; }
void cancel_free();
Object();
virtual ~Object();
};
bool predelete_handler(Object *p_object);
void postinitialize_handler(Object *p_object);
class ObjectDB {
// This needs to add up to 63, 1 bit is for reference.
#define OBJECTDB_VALIDATOR_BITS 39
#define OBJECTDB_VALIDATOR_MASK ((uint64_t(1) << OBJECTDB_VALIDATOR_BITS) - 1)
#define OBJECTDB_SLOT_MAX_COUNT_BITS 24
#define OBJECTDB_SLOT_MAX_COUNT_MASK ((uint64_t(1) << OBJECTDB_SLOT_MAX_COUNT_BITS) - 1)
#define OBJECTDB_REFERENCE_BIT (uint64_t(1) << (OBJECTDB_SLOT_MAX_COUNT_BITS + OBJECTDB_VALIDATOR_BITS))
struct ObjectSlot { // 128 bits per slot.
uint64_t validator : OBJECTDB_VALIDATOR_BITS;
uint64_t next_free : OBJECTDB_SLOT_MAX_COUNT_BITS;
uint64_t is_ref_counted : 1;
Object *object = nullptr;
};
static SpinLock spin_lock;
static uint32_t slot_count;
static uint32_t slot_max;
static ObjectSlot *object_slots;
static uint64_t validator_counter;
friend class Object;
friend void unregister_core_types();
static void cleanup();
static ObjectID add_instance(Object *p_object);
static void remove_instance(Object *p_object);
friend void register_core_types();
static void setup();
public:
typedef void (*DebugFunc)(Object *p_obj);
_ALWAYS_INLINE_ static Object *get_instance(ObjectID p_instance_id) {
uint64_t id = p_instance_id;
uint32_t slot = id & OBJECTDB_SLOT_MAX_COUNT_MASK;
ERR_FAIL_COND_V(slot >= slot_max, nullptr); // This should never happen unless RID is corrupted.
spin_lock.lock();
uint64_t validator = (id >> OBJECTDB_SLOT_MAX_COUNT_BITS) & OBJECTDB_VALIDATOR_MASK;
if (unlikely(object_slots[slot].validator != validator)) {
spin_lock.unlock();
return nullptr;
}
Object *object = object_slots[slot].object;
spin_lock.unlock();
return object;
}
static void debug_objects(DebugFunc p_func);
static int get_object_count();
};
#endif // OBJECT_H
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