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virtualx-engine/core/object.cpp
Ignacio Etcheverry 3233083f63 Mono: Lifetime fixes for CSharpInstance and instance binding data 
Avoid CSharpInstance from accessing its state after self destructing (by deleting the Reference owner).
It's now safe to replace the script instance without leaking or crashing.

Also fixed godot_icall_Object_weakref return reference being freed before returning.
2019-02-03 06:47:25 +01:00

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/*************************************************************************/
/* object.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 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/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;
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;
return;
}
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]);
for (int i = 1; i < p_names.size(); i++) {
current_value = current_value.get_named(p_names[i], &valid);
if (!valid) {
if (r_valid)
*r_valid = false;
return Variant();
}
}
if (r_valid)
*r_valid = true;
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
#ifdef TOOLS_ENABLED
p_list->push_back(PropertyInfo(Variant::NIL, "Script", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_GROUP));
#endif
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);
return Variant();
}
#ifdef DEBUG_ENABLED
static bool _test_call_error(const StringName &p_func, const Variant::CallError &error) {
switch (error.error) {
case Variant::CallError::CALL_OK:
return true;
case Variant::CallError::CALL_ERROR_INVALID_METHOD:
return false;
case Variant::CallError::CALL_ERROR_INVALID_ARGUMENT: {
ERR_EXPLAIN("Error Calling Function: " + String(p_func) + " - Invalid type for argument " + itos(error.argument) + ", expected " + Variant::get_type_name(error.expected));
ERR_FAIL_V(true);
} break;
case Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS: {
ERR_EXPLAIN("Error Calling Function: " + String(p_func) + " - Too many arguments, expected " + itos(error.argument));
ERR_FAIL_V(true);
} break;
case Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS: {
ERR_EXPLAIN("Error Calling Function: " + String(p_func) + " - Too few arguments, expected " + itos(error.argument));
ERR_FAIL_V(true);
} break;
case Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL: {
} //?
}
return true;
}
#else
#define _test_call_error(m_str, m_err) ((m_err.error == Variant::CallError::CALL_ERROR_INVALID_METHOD) ? false : true)
#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
if (Object::cast_to<Reference>(this)) {
ERR_EXPLAIN("Can't 'free' a reference.");
ERR_FAIL();
return;
}
if (_lock_index.get() > 1) {
ERR_EXPLAIN("Object is locked and can't be freed.");
ERR_FAIL();
return;
}
#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);
if (method) {
return true;
}
return false;
}
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) {
if (p_args.size() == 0) {
return call(p_method);
}
Vector<Variant> args;
args.resize(p_args.size());
Vector<const Variant *> argptrs;
argptrs.resize(p_args.size());
for (int i = 0; i < p_args.size(); i++) {
args.write[i] = p_args[i];
argptrs.write[i] = &args[i];
}
Variant::CallError ce;
return call(p_method, (const Variant **)argptrs.ptr(), p_args.size(), ce);
}
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_EXPLAIN("Can't 'free' a reference.");
ERR_FAIL_V(Variant());
}
if (_lock_index.get() > 1) {
r_error.argument = 0;
r_error.error = Variant::CallError::CALL_ERROR_INVALID_METHOD;
ERR_EXPLAIN("Object is locked and can't be freed.");
ERR_FAIL_V(Variant());
}
#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);
}
}
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;
}
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("script");
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];
}
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(p_signal.name == "");
ERR_FAIL_COND(ClassDB::has_signal(get_class_name(), p_signal.name));
ERR_FAIL_COND(signal_map.has(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
if (!signal_is_valid && !script.is_null() && !Ref<Script>(script)->has_script_signal(p_name)) {
ERR_EXPLAIN("Can't emit non-existing signal " + String("\"") + p_name + "\".");
ERR_FAIL_V(ERR_UNAVAILABLE);
}
#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;
#ifdef DEBUG_ENABLED
target = ObjectDB::get_instance(slot_map.getk(i)._id);
ERR_CONTINUE(!target);
#else
target = c.target;
#endif
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;
target->call(c.method, args, argc, ce);
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 dont 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;
}
void Object::get_signal_list(List<MethodInfo> *p_signals) const {
if (!script.is_null()) {
Ref<Script>(script)->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);
}
bool Object::has_persistent_signal_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++) {
if (s->slot_map.getv(i).conn.flags & CONNECT_PERSIST)
return true;
}
}
return false;
}
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
}
if (!signal_is_valid) {
ERR_EXPLAIN("In Object of type '" + String(get_class()) + "': Attempt to connect nonexistent signal '" + p_signal + "' to method '" + p_to_object->get_class() + "." + p_to_method + "'");
ERR_FAIL_COND_V(!signal_is_valid, ERR_INVALID_PARAMETER);
}
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_EXPLAIN("Signal '" + p_signal + "' is already connected to given method '" + p_to_method + "' in that object.");
ERR_FAIL_COND_V(s->slot_map.has(target), ERR_INVALID_PARAMETER);
}
}
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_EXPLAIN("Nonexistent signal: " + p_signal);
ERR_FAIL_COND_V(!s, false);
}
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);
if (!s) {
ERR_EXPLAIN("Nonexistent signal: " + p_signal);
ERR_FAIL_COND(!s);
}
if (s->lock > 0) {
ERR_EXPLAIN("Attempt to disconnect signal '" + p_signal + "' while emitting (locks: " + itos(s->lock) + ")");
ERR_FAIL_COND(s->lock > 0);
}
Signal::Target target(p_to_object->get_instance_id(), p_to_method);
if (!s->slot_map.has(target)) {
ERR_EXPLAIN("Disconnecting nonexistent signal '" + p_signal + "', slot: " + itos(target._id) + ":" + target.method);
ERR_FAIL();
}
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", "type"), &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("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("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);
//todo reimplement this per language so all 5 arguments can be called
//ClassDB::bind_method(D_METHOD("call","method","arg1","arg2","arg3","arg4"),&Object::_call_bind,DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()));
//ClassDB::bind_method(D_METHOD("call_deferred","method","arg1","arg2","arg3","arg4"),&Object::_call_deferred_bind,DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()));
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);
//ClassDB::bind_method(D_METHOD("emit_signal","signal","arguments"),&Object::_emit_signal,DEFVAL(Array()));
{
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);
}
{
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);
}
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("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_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;
}
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;
instance_binding_count = 0;
memset(_script_instance_bindings, 0, sizeof(void *) * MAX_SCRIPT_INSTANCE_BINDINGS);
script_instance = NULL;
#ifdef TOOLS_ENABLED
_edited = false;
_edited_version = 0;
#endif
#ifdef DEBUG_ENABLED
_lock_index.init(1);
#endif
}
Object::~Object() {
if (script_instance)
memdelete(script_instance);
script_instance = NULL;
const StringName *S = NULL;
while ((S = signal_map.next(NULL))) {
Signal *s = &signal_map[*S];
if (s->lock) {
ERR_EXPLAIN("Attempt to delete an object in the middle of a signal emission from it");
ERR_CONTINUE(s->lock > 0);
}
//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;
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 still exist!");
if (OS::get_singleton()->is_stdout_verbose()) {
const ObjectID *K = NULL;
while ((K = instances.next(K))) {
String node_name;
if (instances[*K]->is_class("Node"))
node_name = " - Node name: " + String(instances[*K]->call("get_name"));
if (instances[*K]->is_class("Resource"))
node_name = " - Resource name: " + String(instances[*K]->call("get_name")) + " Path: " + String(instances[*K]->call("get_path"));
print_line("Leaked instance: " + String(instances[*K]->get_class()) + ":" + itos(*K) + node_name);
}
}
}
instances.clear();
instance_checks.clear();
rw_lock->write_unlock();
memdelete(rw_lock);
}
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