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godot/core/object.cpp

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/*************************************************************************/
/* object.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "object.h"
#include "core/class_db.h"
#include "core/core_string_names.h"
#include "core/message_queue.h"
#include "core/object_rc.h"
#include "core/os/os.h"
#include "core/print_string.h"
#include "core/resource.h"
#include "core/script_language.h"
#include "core/translation.h"
#ifdef DEBUG_ENABLED
struct _ObjectDebugLock {
Object *obj;
_ObjectDebugLock(Object *p_obj) {
obj = p_obj;
obj->_lock_index.ref();
}
~_ObjectDebugLock() {
obj->_lock_index.unref();
}
};
#define OBJ_DEBUG_LOCK _ObjectDebugLock _debug_lock(this);
#else
#define OBJ_DEBUG_LOCK
#endif
PropertyInfo::operator Dictionary() const {
Dictionary d;
d["name"] = name;
d["class_name"] = class_name;
d["type"] = type;
d["hint"] = hint;
d["hint_string"] = hint_string;
d["usage"] = usage;
return d;
}
PropertyInfo PropertyInfo::from_dict(const Dictionary &p_dict) {
PropertyInfo pi;
if (p_dict.has("type"))
pi.type = Variant::Type(int(p_dict["type"]));
if (p_dict.has("name"))
pi.name = p_dict["name"];
if (p_dict.has("class_name"))
pi.class_name = p_dict["class_name"];
if (p_dict.has("hint"))
pi.hint = PropertyHint(int(p_dict["hint"]));
if (p_dict.has("hint_string"))
pi.hint_string = p_dict["hint_string"];
if (p_dict.has("usage"))
pi.usage = p_dict["usage"];
return pi;
}
Array convert_property_list(const List<PropertyInfo> *p_list) {
Array va;
for (const List<PropertyInfo>::Element *E = p_list->front(); E; E = E->next()) {
va.push_back(Dictionary(E->get()));
}
return va;
}
MethodInfo::operator Dictionary() const {
Dictionary d;
d["name"] = name;
d["args"] = convert_property_list(&arguments);
Array da;
for (int i = 0; i < default_arguments.size(); i++)
da.push_back(default_arguments[i]);
d["default_args"] = da;
d["flags"] = flags;
d["id"] = id;
Dictionary r = return_val;
d["return"] = r;
return d;
}
MethodInfo::MethodInfo() :
flags(METHOD_FLAG_NORMAL),
id(0) {
}
MethodInfo MethodInfo::from_dict(const Dictionary &p_dict) {
MethodInfo mi;
if (p_dict.has("name"))
mi.name = p_dict["name"];
Array args;
if (p_dict.has("args")) {
args = p_dict["args"];
}
for (int i = 0; i < args.size(); i++) {
Dictionary d = args[i];
mi.arguments.push_back(PropertyInfo::from_dict(d));
}
Array defargs;
if (p_dict.has("default_args")) {
defargs = p_dict["default_args"];
}
for (int i = 0; i < defargs.size(); i++) {
mi.default_arguments.push_back(defargs[i]);
}
if (p_dict.has("return")) {
mi.return_val = PropertyInfo::from_dict(p_dict["return"]);
}
if (p_dict.has("flags"))
mi.flags = p_dict["flags"];
return mi;
}
MethodInfo::MethodInfo(const String &p_name) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
}
MethodInfo::MethodInfo(const String &p_name, const PropertyInfo &p_param1) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
}
MethodInfo::MethodInfo(const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
arguments.push_back(p_param2);
}
MethodInfo::MethodInfo(const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
}
MethodInfo::MethodInfo(const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3, const PropertyInfo &p_param4) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
arguments.push_back(p_param4);
}
MethodInfo::MethodInfo(const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3, const PropertyInfo &p_param4, const PropertyInfo &p_param5) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
arguments.push_back(p_param4);
arguments.push_back(p_param5);
}
MethodInfo::MethodInfo(Variant::Type ret) :
flags(METHOD_FLAG_NORMAL),
id(0) {
return_val.type = ret;
}
MethodInfo::MethodInfo(Variant::Type ret, const String &p_name) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
return_val.type = ret;
}
MethodInfo::MethodInfo(Variant::Type ret, const String &p_name, const PropertyInfo &p_param1) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
return_val.type = ret;
arguments.push_back(p_param1);
}
MethodInfo::MethodInfo(Variant::Type ret, const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
return_val.type = ret;
arguments.push_back(p_param1);
arguments.push_back(p_param2);
}
MethodInfo::MethodInfo(Variant::Type ret, const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
return_val.type = ret;
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
}
MethodInfo::MethodInfo(Variant::Type ret, const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3, const PropertyInfo &p_param4) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
return_val.type = ret;
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
arguments.push_back(p_param4);
}
MethodInfo::MethodInfo(Variant::Type ret, const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3, const PropertyInfo &p_param4, const PropertyInfo &p_param5) :
name(p_name),
flags(METHOD_FLAG_NORMAL),
id(0) {
return_val.type = ret;
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
arguments.push_back(p_param4);
arguments.push_back(p_param5);
}
MethodInfo::MethodInfo(const PropertyInfo &p_ret, const String &p_name) :
name(p_name),
return_val(p_ret),
flags(METHOD_FLAG_NORMAL),
id(0) {
}
MethodInfo::MethodInfo(const PropertyInfo &p_ret, const String &p_name, const PropertyInfo &p_param1) :
name(p_name),
return_val(p_ret),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
}
MethodInfo::MethodInfo(const PropertyInfo &p_ret, const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2) :
name(p_name),
return_val(p_ret),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
arguments.push_back(p_param2);
}
MethodInfo::MethodInfo(const PropertyInfo &p_ret, const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3) :
name(p_name),
return_val(p_ret),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
}
MethodInfo::MethodInfo(const PropertyInfo &p_ret, const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3, const PropertyInfo &p_param4) :
name(p_name),
return_val(p_ret),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
arguments.push_back(p_param4);
}
MethodInfo::MethodInfo(const PropertyInfo &p_ret, const String &p_name, const PropertyInfo &p_param1, const PropertyInfo &p_param2, const PropertyInfo &p_param3, const PropertyInfo &p_param4, const PropertyInfo &p_param5) :
name(p_name),
return_val(p_ret),
flags(METHOD_FLAG_NORMAL),
id(0) {
arguments.push_back(p_param1);
arguments.push_back(p_param2);
arguments.push_back(p_param3);
arguments.push_back(p_param4);
arguments.push_back(p_param5);
}
Object::Connection::operator Variant() const {
Dictionary d;
d["source"] = source;
d["signal"] = signal;
d["target"] = target;
d["method"] = method;
d["flags"] = flags;
d["binds"] = binds;
return d;
}
bool Object::Connection::operator<(const Connection &p_conn) const {
if (source == p_conn.source) {
if (signal == p_conn.signal) {
if (target == p_conn.target) {
return method < p_conn.method;
} else {
return target < p_conn.target;
}
} else
return signal < p_conn.signal;
} else {
return source < p_conn.source;
}
}
Object::Connection::Connection(const Variant &p_variant) {
Dictionary d = p_variant;
if (d.has("source"))
source = d["source"];
if (d.has("signal"))
signal = d["signal"];
if (d.has("target"))
target = d["target"];
if (d.has("method"))
method = d["method"];
if (d.has("flags"))
flags = d["flags"];
if (d.has("binds"))
binds = d["binds"];
}
bool Object::_predelete() {
_predelete_ok = 1;
notification(NOTIFICATION_PREDELETE, true);
if (_predelete_ok) {
_class_ptr = NULL; //must restore so destructors can access class ptr correctly
}
return _predelete_ok;
}
void Object::_postinitialize() {
_class_ptr = _get_class_namev();
_initialize_classv();
notification(NOTIFICATION_POSTINITIALIZE);
}
void Object::get_valid_parents_static(List<String> *p_parents) {
}
void Object::_get_valid_parents_static(List<String> *p_parents) {
}
void Object::set(const StringName &p_name, const Variant &p_value, bool *r_valid) {
#ifdef TOOLS_ENABLED
_edited = true;
#endif
if (script_instance) {
if (script_instance->set(p_name, p_value)) {
if (r_valid)
*r_valid = true;
return;
}
}
//try built-in setgetter
{
if (ClassDB::set_property(this, p_name, p_value, r_valid)) {
/*
if (r_valid)
*r_valid=true;
*/
return;
}
}
if (p_name == CoreStringNames::get_singleton()->_script) {
set_script(p_value);
if (r_valid)
*r_valid = true;
return;
} else if (p_name == CoreStringNames::get_singleton()->_meta) {
//set_meta(p_name,p_value);
metadata = p_value.duplicate();
if (r_valid)
*r_valid = true;
return;
}
//something inside the object... :|
bool success = _setv(p_name, p_value);
if (success) {
if (r_valid)
*r_valid = true;
return;
}
{
bool valid;
setvar(p_name, p_value, &valid);
if (valid) {
if (r_valid)
*r_valid = true;
return;
}
}
#ifdef TOOLS_ENABLED
if (script_instance) {
bool valid;
script_instance->property_set_fallback(p_name, p_value, &valid);
if (valid) {
if (r_valid)
*r_valid = true;
return;
}
}
#endif
if (r_valid)
*r_valid = false;
}
Variant Object::get(const StringName &p_name, bool *r_valid) const {
Variant ret;
if (script_instance) {
if (script_instance->get(p_name, ret)) {
if (r_valid)
*r_valid = true;
return ret;
}
}
//try built-in setgetter
{
if (ClassDB::get_property(const_cast<Object *>(this), p_name, ret)) {
if (r_valid)
*r_valid = true;
return ret;
}
}
if (p_name == CoreStringNames::get_singleton()->_script) {
ret = get_script();
if (r_valid)
*r_valid = true;
return ret;
} else if (p_name == CoreStringNames::get_singleton()->_meta) {
ret = metadata;
if (r_valid)
*r_valid = true;
return ret;
} else {
//something inside the object... :|
bool success = _getv(p_name, ret);
if (success) {
if (r_valid)
*r_valid = true;
return ret;
}
//if nothing else, use getvar
{
bool valid;
ret = getvar(p_name, &valid);
if (valid) {
if (r_valid)
*r_valid = true;
return ret;
}
}
#ifdef TOOLS_ENABLED
if (script_instance) {
bool valid;
ret = script_instance->property_get_fallback(p_name, &valid);
if (valid) {
if (r_valid)
*r_valid = true;
return ret;
}
}
#endif
if (r_valid)
*r_valid = false;
return Variant();
}
}
void Object::set_indexed(const Vector<StringName> &p_names, const Variant &p_value, bool *r_valid) {
if (p_names.empty()) {
if (r_valid)
*r_valid = false;
return;
}
if (p_names.size() == 1) {
set(p_names[0], p_value, r_valid);
return;
}
bool valid = false;
if (!r_valid) r_valid = &valid;
List<Variant> value_stack;
value_stack.push_back(get(p_names[0], r_valid));
if (!*r_valid) {
value_stack.clear();
return;
}
for (int i = 1; i < p_names.size() - 1; i++) {
value_stack.push_back(value_stack.back()->get().get_named(p_names[i], r_valid));
if (!*r_valid) {
value_stack.clear();
return;
}
}
value_stack.push_back(p_value); // p_names[p_names.size() - 1]
for (int i = p_names.size() - 1; i > 0; i--) {
value_stack.back()->prev()->get().set_named(p_names[i], value_stack.back()->get(), r_valid);
value_stack.pop_back();
if (!*r_valid) {
value_stack.clear();
return;
}
}
set(p_names[0], value_stack.back()->get(), r_valid);
value_stack.pop_back();
ERR_FAIL_COND(!value_stack.empty());
}
Variant Object::get_indexed(const Vector<StringName> &p_names, bool *r_valid) const {
if (p_names.empty()) {
if (r_valid)
*r_valid = false;
return Variant();
}
bool valid = false;
Variant current_value = get(p_names[0], &valid);
for (int i = 1; i < p_names.size(); i++) {
current_value = current_value.get_named(p_names[i], &valid);
if (!valid)
break;
}
if (r_valid)
*r_valid = valid;
return current_value;
}
void Object::get_property_list(List<PropertyInfo> *p_list, bool p_reversed) const {
if (script_instance && p_reversed) {
p_list->push_back(PropertyInfo(Variant::NIL, "Script Variables", PROPERTY_HINT_NONE, String(), PROPERTY_USAGE_CATEGORY));
script_instance->get_property_list(p_list);
}
_get_property_listv(p_list, p_reversed);
if (!is_class("Script")) { // can still be set, but this is for userfriendlyness
p_list->push_back(PropertyInfo(Variant::OBJECT, "script", PROPERTY_HINT_RESOURCE_TYPE, "Script", PROPERTY_USAGE_DEFAULT));
}
if (!metadata.empty()) {
p_list->push_back(PropertyInfo(Variant::DICTIONARY, "__meta__", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL));
}
if (script_instance && !p_reversed) {
p_list->push_back(PropertyInfo(Variant::NIL, "Script Variables", PROPERTY_HINT_NONE, String(), PROPERTY_USAGE_CATEGORY));
script_instance->get_property_list(p_list);
}
}
void Object::_validate_property(PropertyInfo &property) const {
}
void Object::get_method_list(List<MethodInfo> *p_list) const {
ClassDB::get_method_list(get_class_name(), p_list);
if (script_instance) {
script_instance->get_method_list(p_list);
}
}
Variant Object::_call_bind(const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
if (p_argcount < 1) {
r_error.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument = 0;
return Variant();
}
if (p_args[0]->get_type() != Variant::STRING) {
r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
r_error.argument = 0;
r_error.expected = Variant::STRING;
return Variant();
}
StringName method = *p_args[0];
return call(method, &p_args[1], p_argcount - 1, r_error);
}
Variant Object::_call_deferred_bind(const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
if (p_argcount < 1) {
r_error.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument = 0;
return Variant();
}
if (p_args[0]->get_type() != Variant::STRING) {
r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
r_error.argument = 0;
r_error.expected = Variant::STRING;
return Variant();
}
r_error.error = Variant::CallError::CALL_OK;
StringName method = *p_args[0];
MessageQueue::get_singleton()->push_call(get_instance_id(), method, &p_args[1], p_argcount - 1, true);
return Variant();
}
#ifdef DEBUG_ENABLED
static void _test_call_error(const StringName &p_func, const Variant::CallError &error) {
switch (error.error) {
case Variant::CallError::CALL_OK:
case Variant::CallError::CALL_ERROR_INVALID_METHOD:
break;
case Variant::CallError::CALL_ERROR_INVALID_ARGUMENT: {
ERR_FAIL_MSG("Error calling function: " + String(p_func) + " - Invalid type for argument " + itos(error.argument) + ", expected " + Variant::get_type_name(error.expected) + ".");
break;
}
case Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS: {
ERR_FAIL_MSG("Error calling function: " + String(p_func) + " - Too many arguments, expected " + itos(error.argument) + ".");
break;
}
case Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS: {
ERR_FAIL_MSG("Error calling function: " + String(p_func) + " - Too few arguments, expected " + itos(error.argument) + ".");
break;
}
case Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL:
break;
}
}
#else
#define _test_call_error(m_str, m_err)
#endif
void Object::call_multilevel(const StringName &p_method, const Variant **p_args, int p_argcount) {
if (p_method == CoreStringNames::get_singleton()->_free) {
#ifdef DEBUG_ENABLED
ERR_FAIL_COND_MSG(Object::cast_to<Reference>(this), "Can't 'free' a reference.");
ERR_FAIL_COND_MSG(_lock_index.get() > 1, "Object is locked and can't be freed.");
#endif
//must be here, must be before everything,
memdelete(this);
return;
}
//Variant ret;
OBJ_DEBUG_LOCK
Variant::CallError error;
if (script_instance) {
script_instance->call_multilevel(p_method, p_args, p_argcount);
//_test_call_error(p_method,error);
}
MethodBind *method = ClassDB::get_method(get_class_name(), p_method);
if (method) {
method->call(this, p_args, p_argcount, error);
_test_call_error(p_method, error);
}
}
void Object::call_multilevel_reversed(const StringName &p_method, const Variant **p_args, int p_argcount) {
MethodBind *method = ClassDB::get_method(get_class_name(), p_method);
Variant::CallError error;
OBJ_DEBUG_LOCK
if (method) {
method->call(this, p_args, p_argcount, error);
_test_call_error(p_method, error);
}
//Variant ret;
if (script_instance) {
script_instance->call_multilevel_reversed(p_method, p_args, p_argcount);
//_test_call_error(p_method,error);
}
}
bool Object::has_method(const StringName &p_method) const {
if (p_method == CoreStringNames::get_singleton()->_free) {
return true;
}
if (script_instance && script_instance->has_method(p_method)) {
return true;
}
MethodBind *method = ClassDB::get_method(get_class_name(), p_method);
return method != NULL;
}
Variant Object::getvar(const Variant &p_key, bool *r_valid) const {
if (r_valid)
*r_valid = false;
return Variant();
}
void Object::setvar(const Variant &p_key, const Variant &p_value, bool *r_valid) {
if (r_valid)
*r_valid = false;
}
Variant Object::callv(const StringName &p_method, const Array &p_args) {
const Variant **argptrs = NULL;
if (p_args.size() > 0) {
argptrs = (const Variant **)alloca(sizeof(Variant *) * p_args.size());
for (int i = 0; i < p_args.size(); i++) {
argptrs[i] = &p_args[i];
}
}
Variant::CallError ce;
Variant ret = call(p_method, argptrs, p_args.size(), ce);
if (ce.error != Variant::CallError::CALL_OK) {
ERR_FAIL_V_MSG(Variant(), "Error calling method from 'callv': " + Variant::get_call_error_text(this, p_method, argptrs, p_args.size(), ce) + ".");
}
return ret;
}
Variant Object::call(const StringName &p_name, VARIANT_ARG_DECLARE) {
VARIANT_ARGPTRS;
int argc = 0;
for (int i = 0; i < VARIANT_ARG_MAX; i++) {
if (argptr[i]->get_type() == Variant::NIL)
break;
argc++;
}
Variant::CallError error;
Variant ret = call(p_name, argptr, argc, error);
return ret;
}
void Object::call_multilevel(const StringName &p_name, VARIANT_ARG_DECLARE) {
VARIANT_ARGPTRS;
int argc = 0;
for (int i = 0; i < VARIANT_ARG_MAX; i++) {
if (argptr[i]->get_type() == Variant::NIL)
break;
argc++;
}
//Variant::CallError error;
call_multilevel(p_name, argptr, argc);
}
Variant Object::call(const StringName &p_method, const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
r_error.error = Variant::CallError::CALL_OK;
if (p_method == CoreStringNames::get_singleton()->_free) {
//free must be here, before anything, always ready
#ifdef DEBUG_ENABLED
if (p_argcount != 0) {
r_error.argument = 0;
r_error.error = Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
return Variant();
}
if (Object::cast_to<Reference>(this)) {
r_error.argument = 0;
r_error.error = Variant::CallError::CALL_ERROR_INVALID_METHOD;
ERR_FAIL_V_MSG(Variant(), "Can't 'free' a reference.");
}
if (_lock_index.get() > 1) {
r_error.argument = 0;
r_error.error = Variant::CallError::CALL_ERROR_INVALID_METHOD;
ERR_FAIL_V_MSG(Variant(), "Object is locked and can't be freed.");
}
#endif
//must be here, must be before everything,
memdelete(this);
r_error.error = Variant::CallError::CALL_OK;
return Variant();
}
Variant ret;
OBJ_DEBUG_LOCK
if (script_instance) {
ret = script_instance->call(p_method, p_args, p_argcount, r_error);
//force jumptable
switch (r_error.error) {
case Variant::CallError::CALL_OK:
return ret;
case Variant::CallError::CALL_ERROR_INVALID_METHOD:
break;
case Variant::CallError::CALL_ERROR_INVALID_ARGUMENT:
case Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS:
case Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS:
return ret;
case Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL: {
}
}
}
MethodBind *method = ClassDB::get_method(get_class_name(), p_method);
if (method) {
ret = method->call(this, p_args, p_argcount, r_error);
} else {
r_error.error = Variant::CallError::CALL_ERROR_INVALID_METHOD;
}
return ret;
}
void Object::notification(int p_notification, bool p_reversed) {
_notificationv(p_notification, p_reversed);
if (script_instance) {
script_instance->notification(p_notification);
}
}
String Object::to_string() {
if (script_instance) {
bool valid;
String ret = script_instance->to_string(&valid);
if (valid)
return ret;
}
return "[" + get_class() + ":" + itos(get_instance_id()) + "]";
}
void Object::_changed_callback(Object *p_changed, const char *p_prop) {
}
void Object::add_change_receptor(Object *p_receptor) {
change_receptors.insert(p_receptor);
}
void Object::remove_change_receptor(Object *p_receptor) {
change_receptors.erase(p_receptor);
}
void Object::property_list_changed_notify() {
_change_notify();
}
void Object::cancel_delete() {
_predelete_ok = true;
}
#ifdef DEBUG_ENABLED
ObjectRC *Object::_use_rc() {
// The RC object is lazily created the first time it's requested;
// that way, there's no need to allocate and release it at all if this Object
// is not being referred by any Variant at all.
// Although when dealing with Objects from multiple threads some locking
// mechanism should be used, this at least makes safe the case of first
// assignment.
ObjectRC *rc = nullptr;
ObjectRC *const creating = reinterpret_cast<ObjectRC *>(1);
if (unlikely(_rc.compare_exchange_strong(rc, creating, std::memory_order_acq_rel))) {
// Not created yet
rc = memnew(ObjectRC(this));
_rc.store(rc, std::memory_order_release);
return rc;
}
// Spin-wait until we know it's created (or just return if it's already created)
for (;;) {
if (likely(rc != creating)) {
rc->increment();
return rc;
}
rc = _rc.load(std::memory_order_acquire);
}
}
#endif
void Object::set_script_and_instance(const RefPtr &p_script, ScriptInstance *p_instance) {
//this function is not meant to be used in any of these ways
ERR_FAIL_COND(p_script.is_null());
ERR_FAIL_COND(!p_instance);
ERR_FAIL_COND(script_instance != NULL || !script.is_null());
script = p_script;
script_instance = p_instance;
}
void Object::set_script(const RefPtr &p_script) {
if (script == p_script)
return;
if (script_instance) {
memdelete(script_instance);
script_instance = NULL;
}
script = p_script;
Ref<Script> s(script);
if (!s.is_null()) {
if (s->can_instance()) {
OBJ_DEBUG_LOCK
script_instance = s->instance_create(this);
} else if (Engine::get_singleton()->is_editor_hint()) {
OBJ_DEBUG_LOCK
script_instance = s->placeholder_instance_create(this);
}
}
_change_notify(); //scripts may add variables, so refresh is desired
emit_signal(CoreStringNames::get_singleton()->script_changed);
}
void Object::set_script_instance(ScriptInstance *p_instance) {
if (script_instance == p_instance)
return;
if (script_instance)
memdelete(script_instance);
script_instance = p_instance;
if (p_instance)
script = p_instance->get_script().get_ref_ptr();
else
script = RefPtr();
}
RefPtr Object::get_script() const {
return script;
}
bool Object::has_meta(const String &p_name) const {
return metadata.has(p_name);
}
void Object::set_meta(const String &p_name, const Variant &p_value) {
if (p_value.get_type() == Variant::NIL) {
metadata.erase(p_name);
return;
};
metadata[p_name] = p_value;
}
Variant Object::get_meta(const String &p_name) const {
ERR_FAIL_COND_V(!metadata.has(p_name), Variant());
return metadata[p_name];
}
void Object::remove_meta(const String &p_name) {
metadata.erase(p_name);
}
Array Object::_get_property_list_bind() const {
List<PropertyInfo> lpi;
get_property_list(&lpi);
return convert_property_list(&lpi);
}
Array Object::_get_method_list_bind() const {
List<MethodInfo> ml;
get_method_list(&ml);
Array ret;
for (List<MethodInfo>::Element *E = ml.front(); E; E = E->next()) {
Dictionary d = E->get();
//va.push_back(d);
ret.push_back(d);
}
return ret;
}
PoolVector<String> Object::_get_meta_list_bind() const {
PoolVector<String> _metaret;
List<Variant> keys;
metadata.get_key_list(&keys);
for (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
_metaret.push_back(E->get());
}
return _metaret;
}
void Object::get_meta_list(List<String> *p_list) const {
List<Variant> keys;
metadata.get_key_list(&keys);
for (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
p_list->push_back(E->get());
}
}
void Object::add_user_signal(const MethodInfo &p_signal) {
ERR_FAIL_COND_MSG(p_signal.name == "", "Signal name cannot be empty.");
ERR_FAIL_COND_MSG(ClassDB::has_signal(get_class_name(), p_signal.name), "User signal's name conflicts with a built-in signal of '" + get_class_name() + "'.");
ERR_FAIL_COND_MSG(signal_map.has(p_signal.name), "Trying to add already existing signal '" + p_signal.name + "'.");
Signal s;
s.user = p_signal;
signal_map[p_signal.name] = s;
}
bool Object::_has_user_signal(const StringName &p_name) const {
if (!signal_map.has(p_name))
return false;
return signal_map[p_name].user.name.length() > 0;
}
struct _ObjectSignalDisconnectData {
StringName signal;
Object *target;
StringName method;
};
Variant Object::_emit_signal(const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
r_error.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
ERR_FAIL_COND_V(p_argcount < 1, Variant());
if (p_args[0]->get_type() != Variant::STRING) {
r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
r_error.argument = 0;
r_error.expected = Variant::STRING;
ERR_FAIL_COND_V(p_args[0]->get_type() != Variant::STRING, Variant());
}
r_error.error = Variant::CallError::CALL_OK;
StringName signal = *p_args[0];
const Variant **args = NULL;
int argc = p_argcount - 1;
if (argc) {
args = &p_args[1];
}
emit_signal(signal, args, argc);
return Variant();
}
Error Object::emit_signal(const StringName &p_name, const Variant **p_args, int p_argcount) {
if (_block_signals)
return ERR_CANT_ACQUIRE_RESOURCE; //no emit, signals blocked
Signal *s = signal_map.getptr(p_name);
if (!s) {
#ifdef DEBUG_ENABLED
bool signal_is_valid = ClassDB::has_signal(get_class_name(), p_name);
//check in script
ERR_FAIL_COND_V_MSG(!signal_is_valid && !script.is_null() && !Ref<Script>(script)->has_script_signal(p_name), ERR_UNAVAILABLE, "Can't emit non-existing signal " + String("\"") + p_name + "\".");
#endif
//not connected? just return
return ERR_UNAVAILABLE;
}
List<_ObjectSignalDisconnectData> disconnect_data;
//copy on write will ensure that disconnecting the signal or even deleting the object will not affect the signal calling.
//this happens automatically and will not change the performance of calling.
//awesome, isn't it?
VMap<Signal::Target, Signal::Slot> slot_map = s->slot_map;
int ssize = slot_map.size();
OBJ_DEBUG_LOCK
Vector<const Variant *> bind_mem;
Error err = OK;
for (int i = 0; i < ssize; i++) {
const Connection &c = slot_map.getv(i).conn;
Object *target = ObjectDB::get_instance(slot_map.getk(i)._id);
if (!target) {
// Target might have been deleted during signal callback, this is expected and OK.
continue;
}
const Variant **args = p_args;
int argc = p_argcount;
if (c.binds.size()) {
//handle binds
bind_mem.resize(p_argcount + c.binds.size());
for (int j = 0; j < p_argcount; j++) {
bind_mem.write[j] = p_args[j];
}
for (int j = 0; j < c.binds.size(); j++) {
bind_mem.write[p_argcount + j] = &c.binds[j];
}
args = (const Variant **)bind_mem.ptr();
argc = bind_mem.size();
}
if (c.flags & CONNECT_DEFERRED) {
MessageQueue::get_singleton()->push_call(target->get_instance_id(), c.method, args, argc, true);
} else {
Variant::CallError ce;
_emitting = true;
target->call(c.method, args, argc, ce);
_emitting = false;
if (ce.error != Variant::CallError::CALL_OK) {
#ifdef DEBUG_ENABLED
if (c.flags & CONNECT_PERSIST && Engine::get_singleton()->is_editor_hint() && (script.is_null() || !Ref<Script>(script)->is_tool()))
continue;
#endif
if (ce.error == Variant::CallError::CALL_ERROR_INVALID_METHOD && !ClassDB::class_exists(target->get_class_name())) {
//most likely object is not initialized yet, do not throw error.
} else {
ERR_PRINTS("Error calling method from signal '" + String(p_name) + "': " + Variant::get_call_error_text(target, c.method, args, argc, ce) + ".");
err = ERR_METHOD_NOT_FOUND;
}
}
}
bool disconnect = c.flags & CONNECT_ONESHOT;
#ifdef TOOLS_ENABLED
if (disconnect && (c.flags & CONNECT_PERSIST) && Engine::get_singleton()->is_editor_hint()) {
//this signal was connected from the editor, and is being edited. just don't disconnect for now
disconnect = false;
}
#endif
if (disconnect) {
_ObjectSignalDisconnectData dd;
dd.signal = p_name;
dd.target = target;
dd.method = c.method;
disconnect_data.push_back(dd);
}
}
while (!disconnect_data.empty()) {
const _ObjectSignalDisconnectData &dd = disconnect_data.front()->get();
disconnect(dd.signal, dd.target, dd.method);
disconnect_data.pop_front();
}
return err;
}
Error Object::emit_signal(const StringName &p_name, VARIANT_ARG_DECLARE) {
VARIANT_ARGPTRS;
int argc = 0;
for (int i = 0; i < VARIANT_ARG_MAX; i++) {
if (argptr[i]->get_type() == Variant::NIL)
break;
argc++;
}
return emit_signal(p_name, argptr, argc);
}
void Object::_add_user_signal(const String &p_name, const Array &p_args) {
// this version of add_user_signal is meant to be used from scripts or external apis
// without access to ADD_SIGNAL in bind_methods
// added events are per instance, as opposed to the other ones, which are global
MethodInfo mi;
mi.name = p_name;
for (int i = 0; i < p_args.size(); i++) {
Dictionary d = p_args[i];
PropertyInfo param;
if (d.has("name"))
param.name = d["name"];
if (d.has("type"))
param.type = (Variant::Type)(int)d["type"];
mi.arguments.push_back(param);
}
add_user_signal(mi);
}
Array Object::_get_signal_list() const {
List<MethodInfo> signal_list;
get_signal_list(&signal_list);
Array ret;
for (List<MethodInfo>::Element *E = signal_list.front(); E; E = E->next()) {
ret.push_back(Dictionary(E->get()));
}
return ret;
}
Array Object::_get_signal_connection_list(const String &p_signal) const {
List<Connection> conns;
get_all_signal_connections(&conns);
Array ret;
for (List<Connection>::Element *E = conns.front(); E; E = E->next()) {
Connection &c = E->get();
if (c.signal == p_signal) {
Dictionary rc;
rc["signal"] = c.signal;
rc["method"] = c.method;
rc["source"] = c.source;
rc["target"] = c.target;
rc["binds"] = c.binds;
rc["flags"] = c.flags;
ret.push_back(rc);
}
}
return ret;
}
Array Object::_get_incoming_connections() const {
Array ret;
int connections_amount = connections.size();
for (int idx_conn = 0; idx_conn < connections_amount; idx_conn++) {
Dictionary conn_data;
conn_data["source"] = connections[idx_conn].source;
conn_data["signal_name"] = connections[idx_conn].signal;
conn_data["method_name"] = connections[idx_conn].method;
ret.push_back(conn_data);
}
return ret;
}
bool Object::has_signal(const StringName &p_name) const {
if (!script.is_null()) {
Ref<Script> scr = script;
if (scr.is_valid() && scr->has_script_signal(p_name)) {
return true;
}
}
if (ClassDB::has_signal(get_class_name(), p_name)) {
return true;
}
if (_has_user_signal(p_name)) {
return true;
}
return false;
}
void Object::get_signal_list(List<MethodInfo> *p_signals) const {
if (!script.is_null()) {
Ref<Script> scr = script;
if (scr.is_valid()) {
scr->get_script_signal_list(p_signals);
}
}
ClassDB::get_signal_list(get_class_name(), p_signals);
//find maybe usersignals?
const StringName *S = NULL;
while ((S = signal_map.next(S))) {
if (signal_map[*S].user.name != "") {
//user signal
p_signals->push_back(signal_map[*S].user);
}
}
}
void Object::get_all_signal_connections(List<Connection> *p_connections) const {
const StringName *S = NULL;
while ((S = signal_map.next(S))) {
const Signal *s = &signal_map[*S];
for (int i = 0; i < s->slot_map.size(); i++) {
p_connections->push_back(s->slot_map.getv(i).conn);
}
}
}
void Object::get_signal_connection_list(const StringName &p_signal, List<Connection> *p_connections) const {
const Signal *s = signal_map.getptr(p_signal);
if (!s)
return; //nothing
for (int i = 0; i < s->slot_map.size(); i++)
p_connections->push_back(s->slot_map.getv(i).conn);
}
int Object::get_persistent_signal_connection_count() const {
int count = 0;
const StringName *S = NULL;
while ((S = signal_map.next(S))) {
const Signal *s = &signal_map[*S];
for (int i = 0; i < s->slot_map.size(); i++) {
if (s->slot_map.getv(i).conn.flags & CONNECT_PERSIST) {
count += 1;
}
}
}
return count;
}
void Object::get_signals_connected_to_this(List<Connection> *p_connections) const {
for (const List<Connection>::Element *E = connections.front(); E; E = E->next()) {
p_connections->push_back(E->get());
}
}
Error Object::connect(const StringName &p_signal, Object *p_to_object, const StringName &p_to_method, const Vector<Variant> &p_binds, uint32_t p_flags) {
ERR_FAIL_NULL_V(p_to_object, ERR_INVALID_PARAMETER);
Signal *s = signal_map.getptr(p_signal);
if (!s) {
bool signal_is_valid = ClassDB::has_signal(get_class_name(), p_signal);
//check in script
if (!signal_is_valid && !script.is_null()) {
if (Ref<Script>(script)->has_script_signal(p_signal)) {
signal_is_valid = true;
}
#ifdef TOOLS_ENABLED
else {
//allow connecting signals anyway if script is invalid, see issue #17070
if (!Ref<Script>(script)->is_valid()) {
signal_is_valid = true;
}
}
#endif
}
ERR_FAIL_COND_V_MSG(!signal_is_valid, ERR_INVALID_PARAMETER, "In Object of type '" + String(get_class()) + "': Attempt to connect nonexistent signal '" + p_signal + "' to method '" + p_to_object->get_class() + "." + p_to_method + "'.");
signal_map[p_signal] = Signal();
s = &signal_map[p_signal];
}
Signal::Target target(p_to_object->get_instance_id(), p_to_method);
if (s->slot_map.has(target)) {
if (p_flags & CONNECT_REFERENCE_COUNTED) {
s->slot_map[target].reference_count++;
return OK;
} else {
ERR_FAIL_V_MSG(ERR_INVALID_PARAMETER, "Signal '" + p_signal + "' is already connected to given method '" + p_to_method + "' in that object.");
}
}
Signal::Slot slot;
Connection conn;
conn.source = this;
conn.target = p_to_object;
conn.method = p_to_method;
conn.signal = p_signal;
conn.flags = p_flags;
conn.binds = p_binds;
slot.conn = conn;
slot.cE = p_to_object->connections.push_back(conn);
if (p_flags & CONNECT_REFERENCE_COUNTED) {
slot.reference_count = 1;
}
s->slot_map[target] = slot;
return OK;
}
bool Object::is_connected(const StringName &p_signal, Object *p_to_object, const StringName &p_to_method) const {
ERR_FAIL_NULL_V(p_to_object, false);
const Signal *s = signal_map.getptr(p_signal);
if (!s) {
bool signal_is_valid = ClassDB::has_signal(get_class_name(), p_signal);
if (signal_is_valid)
return false;
if (!script.is_null() && Ref<Script>(script)->has_script_signal(p_signal))
return false;
ERR_FAIL_V_MSG(false, "Nonexistent signal: " + p_signal + ".");
}
Signal::Target target(p_to_object->get_instance_id(), p_to_method);
return s->slot_map.has(target);
//const Map<Signal::Target,Signal::Slot>::Element *E = s->slot_map.find(target);
//return (E!=NULL);
}
void Object::disconnect(const StringName &p_signal, Object *p_to_object, const StringName &p_to_method) {
_disconnect(p_signal, p_to_object, p_to_method);
}
void Object::_disconnect(const StringName &p_signal, Object *p_to_object, const StringName &p_to_method, bool p_force) {
ERR_FAIL_NULL(p_to_object);
Signal *s = signal_map.getptr(p_signal);
ERR_FAIL_COND_MSG(!s, vformat("Nonexistent signal '%s' in %s.", p_signal, to_string()));
Signal::Target target(p_to_object->get_instance_id(), p_to_method);
ERR_FAIL_COND_MSG(!s->slot_map.has(target), "Disconnecting nonexistent signal '" + p_signal + "', slot: " + itos(target._id) + ":" + target.method + ".");
Signal::Slot *slot = &s->slot_map[target];
if (!p_force) {
slot->reference_count--; // by default is zero, if it was not referenced it will go below it
if (slot->reference_count >= 0) {
return;
}
}
p_to_object->connections.erase(slot->cE);
s->slot_map.erase(target);
if (s->slot_map.empty() && ClassDB::has_signal(get_class_name(), p_signal)) {
//not user signal, delete
signal_map.erase(p_signal);
}
}
void Object::_set_bind(const String &p_set, const Variant &p_value) {
set(p_set, p_value);
}
Variant Object::_get_bind(const String &p_name) const {
return get(p_name);
}
void Object::_set_indexed_bind(const NodePath &p_name, const Variant &p_value) {
set_indexed(p_name.get_as_property_path().get_subnames(), p_value);
}
Variant Object::_get_indexed_bind(const NodePath &p_name) const {
return get_indexed(p_name.get_as_property_path().get_subnames());
}
void Object::initialize_class() {
static bool initialized = false;
if (initialized)
return;
ClassDB::_add_class<Object>();
_bind_methods();
initialized = true;
}
StringName Object::tr(const StringName &p_message) const {
if (!_can_translate || !TranslationServer::get_singleton())
return p_message;
return TranslationServer::get_singleton()->translate(p_message);
}
void Object::_clear_internal_resource_paths(const Variant &p_var) {
switch (p_var.get_type()) {
case Variant::OBJECT: {
RES r = p_var;
if (!r.is_valid())
return;
if (!r->get_path().begins_with("res://") || r->get_path().find("::") == -1)
return; //not an internal resource
Object *object = p_var;
if (!object)
return;
r->set_path("");
r->clear_internal_resource_paths();
} break;
case Variant::ARRAY: {
Array a = p_var;
for (int i = 0; i < a.size(); i++) {
_clear_internal_resource_paths(a[i]);
}
} break;
case Variant::DICTIONARY: {
Dictionary d = p_var;
List<Variant> keys;
d.get_key_list(&keys);
for (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
_clear_internal_resource_paths(E->get());
_clear_internal_resource_paths(d[E->get()]);
}
} break;
default: {
}
}
}
#ifdef TOOLS_ENABLED
void Object::editor_set_section_unfold(const String &p_section, bool p_unfolded) {
set_edited(true);
if (p_unfolded)
editor_section_folding.insert(p_section);
else
editor_section_folding.erase(p_section);
}
bool Object::editor_is_section_unfolded(const String &p_section) {
return editor_section_folding.has(p_section);
}
#endif
void Object::clear_internal_resource_paths() {
List<PropertyInfo> pinfo;
get_property_list(&pinfo);
for (List<PropertyInfo>::Element *E = pinfo.front(); E; E = E->next()) {
_clear_internal_resource_paths(get(E->get().name));
}
}
void Object::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_class"), &Object::get_class);
ClassDB::bind_method(D_METHOD("is_class", "class"), &Object::is_class);
ClassDB::bind_method(D_METHOD("set", "property", "value"), &Object::_set_bind);
ClassDB::bind_method(D_METHOD("get", "property"), &Object::_get_bind);
ClassDB::bind_method(D_METHOD("set_indexed", "property", "value"), &Object::_set_indexed_bind);
ClassDB::bind_method(D_METHOD("get_indexed", "property"), &Object::_get_indexed_bind);
ClassDB::bind_method(D_METHOD("get_property_list"), &Object::_get_property_list_bind);
ClassDB::bind_method(D_METHOD("get_method_list"), &Object::_get_method_list_bind);
ClassDB::bind_method(D_METHOD("notification", "what", "reversed"), &Object::notification, DEFVAL(false));
ClassDB::bind_method(D_METHOD("to_string"), &Object::to_string);
ClassDB::bind_method(D_METHOD("get_instance_id"), &Object::get_instance_id);
ClassDB::bind_method(D_METHOD("set_script", "script"), &Object::set_script);
ClassDB::bind_method(D_METHOD("get_script"), &Object::get_script);
ClassDB::bind_method(D_METHOD("set_meta", "name", "value"), &Object::set_meta);
ClassDB::bind_method(D_METHOD("remove_meta", "name"), &Object::remove_meta);
ClassDB::bind_method(D_METHOD("get_meta", "name"), &Object::get_meta);
ClassDB::bind_method(D_METHOD("has_meta", "name"), &Object::has_meta);
ClassDB::bind_method(D_METHOD("get_meta_list"), &Object::_get_meta_list_bind);
ClassDB::bind_method(D_METHOD("add_user_signal", "signal", "arguments"), &Object::_add_user_signal, DEFVAL(Array()));
ClassDB::bind_method(D_METHOD("has_user_signal", "signal"), &Object::_has_user_signal);
{
MethodInfo mi;
mi.name = "emit_signal";
mi.arguments.push_back(PropertyInfo(Variant::STRING, "signal"));
ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "emit_signal", &Object::_emit_signal, mi, varray(), false);
}
{
MethodInfo mi;
mi.name = "call";
mi.arguments.push_back(PropertyInfo(Variant::STRING, "method"));
ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "call", &Object::_call_bind, mi);
}
{
MethodInfo mi;
mi.name = "call_deferred";
mi.arguments.push_back(PropertyInfo(Variant::STRING, "method"));
ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "call_deferred", &Object::_call_deferred_bind, mi, varray(), false);
}
ClassDB::bind_method(D_METHOD("set_deferred", "property", "value"), &Object::set_deferred);
ClassDB::bind_method(D_METHOD("callv", "method", "arg_array"), &Object::callv);
ClassDB::bind_method(D_METHOD("has_method", "method"), &Object::has_method);
ClassDB::bind_method(D_METHOD("has_signal", "signal"), &Object::has_signal);
ClassDB::bind_method(D_METHOD("get_signal_list"), &Object::_get_signal_list);
ClassDB::bind_method(D_METHOD("get_signal_connection_list", "signal"), &Object::_get_signal_connection_list);
ClassDB::bind_method(D_METHOD("get_incoming_connections"), &Object::_get_incoming_connections);
ClassDB::bind_method(D_METHOD("connect", "signal", "target", "method", "binds", "flags"), &Object::connect, DEFVAL(Array()), DEFVAL(0));
ClassDB::bind_method(D_METHOD("disconnect", "signal", "target", "method"), &Object::disconnect);
ClassDB::bind_method(D_METHOD("is_connected", "signal", "target", "method"), &Object::is_connected);
ClassDB::bind_method(D_METHOD("set_block_signals", "enable"), &Object::set_block_signals);
ClassDB::bind_method(D_METHOD("is_blocking_signals"), &Object::is_blocking_signals);
ClassDB::bind_method(D_METHOD("property_list_changed_notify"), &Object::property_list_changed_notify);
ClassDB::bind_method(D_METHOD("set_message_translation", "enable"), &Object::set_message_translation);
ClassDB::bind_method(D_METHOD("can_translate_messages"), &Object::can_translate_messages);
ClassDB::bind_method(D_METHOD("tr", "message"), &Object::tr);
ClassDB::bind_method(D_METHOD("is_queued_for_deletion"), &Object::is_queued_for_deletion);
ClassDB::add_virtual_method("Object", MethodInfo("free"), false);
ADD_SIGNAL(MethodInfo("script_changed"));
BIND_VMETHOD(MethodInfo("_notification", PropertyInfo(Variant::INT, "what")));
BIND_VMETHOD(MethodInfo(Variant::BOOL, "_set", PropertyInfo(Variant::STRING, "property"), PropertyInfo(Variant::NIL, "value")));
#ifdef TOOLS_ENABLED
MethodInfo miget("_get", PropertyInfo(Variant::STRING, "property"));
miget.return_val.name = "Variant";
miget.return_val.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
BIND_VMETHOD(miget);
MethodInfo plget("_get_property_list");
plget.return_val.type = Variant::ARRAY;
BIND_VMETHOD(plget);
#endif
BIND_VMETHOD(MethodInfo("_init"));
BIND_VMETHOD(MethodInfo(Variant::STRING, "_to_string"));
BIND_CONSTANT(NOTIFICATION_POSTINITIALIZE);
BIND_CONSTANT(NOTIFICATION_PREDELETE);
BIND_ENUM_CONSTANT(CONNECT_DEFERRED);
BIND_ENUM_CONSTANT(CONNECT_PERSIST);
BIND_ENUM_CONSTANT(CONNECT_ONESHOT);
BIND_ENUM_CONSTANT(CONNECT_REFERENCE_COUNTED);
}
void Object::call_deferred(const StringName &p_method, VARIANT_ARG_DECLARE) {
MessageQueue::get_singleton()->push_call(this, p_method, VARIANT_ARG_PASS);
}
void Object::set_deferred(const StringName &p_property, const Variant &p_value) {
MessageQueue::get_singleton()->push_set(this, p_property, p_value);
}
void Object::set_block_signals(bool p_block) {
_block_signals = p_block;
}
bool Object::is_blocking_signals() const {
return _block_signals;
}
void Object::get_translatable_strings(List<String> *p_strings) const {
List<PropertyInfo> plist;
get_property_list(&plist);
for (List<PropertyInfo>::Element *E = plist.front(); E; E = E->next()) {
if (!(E->get().usage & PROPERTY_USAGE_INTERNATIONALIZED))
continue;
String text = get(E->get().name);
if (text == "")
continue;
p_strings->push_back(text);
}
}
Variant::Type Object::get_static_property_type(const StringName &p_property, bool *r_valid) const {
bool valid;
Variant::Type t = ClassDB::get_property_type(get_class_name(), p_property, &valid);
if (valid) {
if (r_valid)
*r_valid = true;
return t;
}
if (get_script_instance()) {
return get_script_instance()->get_property_type(p_property, r_valid);
}
if (r_valid)
*r_valid = false;
return Variant::NIL;
}
Variant::Type Object::get_static_property_type_indexed(const Vector<StringName> &p_path, bool *r_valid) const {
if (p_path.size() == 0) {
if (r_valid)
*r_valid = false;
return Variant::NIL;
}
bool valid = false;
Variant::Type t = get_static_property_type(p_path[0], &valid);
if (!valid) {
if (r_valid)
*r_valid = false;
return Variant::NIL;
}
Variant::CallError ce;
Variant check = Variant::construct(t, NULL, 0, ce);
for (int i = 1; i < p_path.size(); i++) {
if (check.get_type() == Variant::OBJECT || check.get_type() == Variant::DICTIONARY || check.get_type() == Variant::ARRAY) {
// We cannot be sure about the type of properties this types can have
if (r_valid)
*r_valid = false;
return Variant::NIL;
}
check = check.get_named(p_path[i], &valid);
if (!valid) {
if (r_valid)
*r_valid = false;
return Variant::NIL;
}
}
if (r_valid)
*r_valid = true;
return check.get_type();
}
bool Object::is_queued_for_deletion() const {
return _is_queued_for_deletion;
}
#ifdef TOOLS_ENABLED
void Object::set_edited(bool p_edited) {
_edited = p_edited;
_edited_version++;
}
bool Object::is_edited() const {
return _edited;
}
uint32_t Object::get_edited_version() const {
return _edited_version;
}
#endif
void *Object::get_script_instance_binding(int p_script_language_index) {
#ifdef DEBUG_ENABLED
ERR_FAIL_INDEX_V(p_script_language_index, MAX_SCRIPT_INSTANCE_BINDINGS, NULL);
#endif
//it's up to the script language to make this thread safe, if the function is called twice due to threads being out of syncro
//just return the same pointer.
//if you want to put a big lock in the entire function and keep allocated pointers in a map or something, feel free to do it
//as it should not really affect performance much (won't be called too often), as in far most caes the condition below will be false afterwards
if (!_script_instance_bindings[p_script_language_index]) {
void *script_data = ScriptServer::get_language(p_script_language_index)->alloc_instance_binding_data(this);
if (script_data) {
atomic_increment(&instance_binding_count);
_script_instance_bindings[p_script_language_index] = script_data;
}
}
return _script_instance_bindings[p_script_language_index];
}
bool Object::has_script_instance_binding(int p_script_language_index) {
return _script_instance_bindings[p_script_language_index] != NULL;
}
void Object::set_script_instance_binding(int p_script_language_index, void *p_data) {
#ifdef DEBUG_ENABLED
CRASH_COND(_script_instance_bindings[p_script_language_index] != NULL);
#endif
_script_instance_bindings[p_script_language_index] = p_data;
}
Object::Object() {
_class_ptr = NULL;
_block_signals = false;
_predelete_ok = 0;
_instance_id = 0;
_instance_id = ObjectDB::add_instance(this);
_can_translate = true;
_is_queued_for_deletion = false;
_emitting = false;
instance_binding_count = 0;
memset(_script_instance_bindings, 0, sizeof(void *) * MAX_SCRIPT_INSTANCE_BINDINGS);
script_instance = NULL;
#ifdef DEBUG_ENABLED
_rc.store(nullptr, std::memory_order_release);
#endif
#ifdef TOOLS_ENABLED
_edited = false;
_edited_version = 0;
#endif
#ifdef DEBUG_ENABLED
_lock_index.init(1);
#endif
}
Object::~Object() {
#ifdef DEBUG_ENABLED
ObjectRC *rc = _rc.load(std::memory_order_acquire);
if (rc) {
if (rc->invalidate()) {
memdelete(rc);
}
}
#endif
if (script_instance)
memdelete(script_instance);
script_instance = NULL;
const StringName *S = NULL;
if (_emitting) {
//@todo this may need to actually reach the debugger prioritarily somehow because it may crash before
ERR_PRINTS("Object " + to_string() + " was freed or unreferenced while a signal is being emitted from it. Try connecting to the signal using 'CONNECT_DEFERRED' flag, or use queue_free() to free the object (if this object is a Node) to avoid this error and potential crashes.");
}
while ((S = signal_map.next(NULL))) {
Signal *s = &signal_map[*S];
//brute force disconnect for performance
int slot_count = s->slot_map.size();
const VMap<Signal::Target, Signal::Slot>::Pair *slot_list = s->slot_map.get_array();
for (int i = 0; i < slot_count; i++) {
slot_list[i].value.conn.target->connections.erase(slot_list[i].value.cE);
}
signal_map.erase(*S);
}
//signals from nodes that connect to this node
while (connections.size()) {
Connection c = connections.front()->get();
c.source->_disconnect(c.signal, c.target, c.method, true);
}
ObjectDB::remove_instance(this);
_instance_id = 0;
_predelete_ok = 2;
if (!ScriptServer::are_languages_finished()) {
for (int i = 0; i < MAX_SCRIPT_INSTANCE_BINDINGS; i++) {
if (_script_instance_bindings[i]) {
ScriptServer::get_language(i)->free_instance_binding_data(_script_instance_bindings[i]);
}
}
}
}
bool predelete_handler(Object *p_object) {
return p_object->_predelete();
}
void postinitialize_handler(Object *p_object) {
p_object->_postinitialize();
}
HashMap<ObjectID, Object *> ObjectDB::instances;
ObjectID ObjectDB::instance_counter = 1;
HashMap<Object *, ObjectID, ObjectDB::ObjectPtrHash> ObjectDB::instance_checks;
ObjectID ObjectDB::add_instance(Object *p_object) {
ERR_FAIL_COND_V(p_object->get_instance_id() != 0, 0);
rw_lock->write_lock();
ObjectID instance_id = ++instance_counter;
instances[instance_id] = p_object;
instance_checks[p_object] = instance_id;
rw_lock->write_unlock();
return instance_id;
}
void ObjectDB::remove_instance(Object *p_object) {
rw_lock->write_lock();
instances.erase(p_object->get_instance_id());
instance_checks.erase(p_object);
rw_lock->write_unlock();
}
Object *ObjectDB::get_instance(ObjectID p_instance_id) {
rw_lock->read_lock();
Object **obj = instances.getptr(p_instance_id);
rw_lock->read_unlock();
if (!obj)
return NULL;
return *obj;
}
void ObjectDB::debug_objects(DebugFunc p_func) {
rw_lock->read_lock();
const ObjectID *K = NULL;
while ((K = instances.next(K))) {
p_func(instances[*K]);
}
rw_lock->read_unlock();
}
void Object::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
}
int ObjectDB::get_object_count() {
rw_lock->read_lock();
int count = instances.size();
rw_lock->read_unlock();
return count;
}
RWLock *ObjectDB::rw_lock = NULL;
void ObjectDB::setup() {
rw_lock = RWLock::create();
}
void ObjectDB::cleanup() {
rw_lock->write_lock();
if (instances.size()) {
WARN_PRINT("ObjectDB instances leaked at exit (run with --verbose for details).");
if (OS::get_singleton()->is_stdout_verbose()) {
// Ensure calling the native classes because if a leaked instance has a script
// that overrides any of those methods, it'd not be OK to call them at this point,
// now the scripting languages have already been terminated.
MethodBind *node_get_name = ClassDB::get_method("Node", "get_name");
MethodBind *resource_get_path = ClassDB::get_method("Resource", "get_path");
Variant::CallError call_error;
const ObjectID *K = NULL;
while ((K = instances.next(K))) {
String extra_info;
if (instances[*K]->is_class("Node"))
extra_info = " - Node name: " + String(node_get_name->call(instances[*K], NULL, 0, call_error));
if (instances[*K]->is_class("Resource"))
extra_info = " - Resource path: " + String(resource_get_path->call(instances[*K], NULL, 0, call_error));
print_line("Leaked instance: " + String(instances[*K]->get_class()) + ":" + itos(*K) + extra_info);
}
print_line("Hint: Leaked instances typically happen when nodes are removed from the scene tree (with `remove_child()`) but not freed (with `free()` or `queue_free()`).");
}
}
instances.clear();
instance_checks.clear();
rw_lock->write_unlock();
memdelete(rw_lock);
}
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