godot/core/object/class_db.cpp

2171 lines
62 KiB
C++

/**************************************************************************/
/* class_db.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "class_db.h"
#include "core/config/engine.h"
#include "core/io/resource_loader.h"
#include "core/object/script_language.h"
#include "core/os/mutex.h"
#include "core/version.h"
#define OBJTYPE_RLOCK RWLockRead _rw_lockr_(lock);
#define OBJTYPE_WLOCK RWLockWrite _rw_lockw_(lock);
#ifdef DEBUG_METHODS_ENABLED
MethodDefinition D_METHODP(const char *p_name, const char *const **p_args, uint32_t p_argcount) {
MethodDefinition md;
md.name = StaticCString::create(p_name);
md.args.resize(p_argcount);
for (uint32_t i = 0; i < p_argcount; i++) {
md.args.write[i] = StaticCString::create(*p_args[i]);
}
return md;
}
#endif
ClassDB::APIType ClassDB::current_api = API_CORE;
HashMap<ClassDB::APIType, uint32_t> ClassDB::api_hashes_cache;
void ClassDB::set_current_api(APIType p_api) {
DEV_ASSERT(!api_hashes_cache.has(p_api)); // This API type may not be suitable for caching of hash if it can change later.
current_api = p_api;
}
ClassDB::APIType ClassDB::get_current_api() {
return current_api;
}
HashMap<StringName, ClassDB::ClassInfo> ClassDB::classes;
HashMap<StringName, StringName> ClassDB::resource_base_extensions;
HashMap<StringName, StringName> ClassDB::compat_classes;
#ifdef TOOLS_ENABLED
HashMap<StringName, ObjectGDExtension> ClassDB::placeholder_extensions;
class PlaceholderExtensionInstance {
StringName class_name;
HashMap<StringName, Variant> properties;
public:
PlaceholderExtensionInstance(const StringName &p_class_name) {
class_name = p_class_name;
}
~PlaceholderExtensionInstance() {}
void set(const StringName &p_name, const Variant &p_value) {
bool is_default_valid = false;
Variant default_value = ClassDB::class_get_default_property_value(class_name, p_name, &is_default_valid);
// If there's a default value, then we know it's a valid property.
if (is_default_valid) {
properties[p_name] = p_value;
}
}
Variant get(const StringName &p_name) {
const Variant *value = properties.getptr(p_name);
Variant ret;
if (value) {
ret = *value;
} else {
bool is_default_valid = false;
Variant default_value = ClassDB::class_get_default_property_value(class_name, p_name, &is_default_valid);
if (is_default_valid) {
ret = default_value;
}
}
return ret;
}
static GDExtensionBool placeholder_instance_set(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionConstVariantPtr p_value) {
PlaceholderExtensionInstance *self = (PlaceholderExtensionInstance *)p_instance;
const StringName &name = *(StringName *)p_name;
const Variant &value = *(const Variant *)p_value;
self->set(name, value);
// We have to return true so Godot doesn't try to call the real setter function.
return true;
}
static GDExtensionBool placeholder_instance_get(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionVariantPtr r_ret) {
PlaceholderExtensionInstance *self = (PlaceholderExtensionInstance *)p_instance;
const StringName &name = *(StringName *)p_name;
Variant *value = (Variant *)r_ret;
*value = self->get(name);
// We have to return true so Godot doesn't try to call the real getter function.
return true;
}
static const GDExtensionPropertyInfo *placeholder_instance_get_property_list(GDExtensionClassInstancePtr p_instance, uint32_t *r_count) {
*r_count = 0;
return nullptr;
}
static void placeholder_instance_free_property_list(GDExtensionClassInstancePtr p_instance, const GDExtensionPropertyInfo *p_list, uint32_t p_count) {
}
static GDExtensionBool placeholder_instance_property_can_revert(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name) {
return false;
}
static GDExtensionBool placeholder_instance_property_get_revert(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, GDExtensionVariantPtr r_ret) {
return false;
}
static GDExtensionBool placeholder_instance_validate_property(GDExtensionClassInstancePtr p_instance, GDExtensionPropertyInfo *p_property) {
return false;
}
static void placeholder_instance_notification(GDExtensionClassInstancePtr p_instance, int32_t p_what, GDExtensionBool p_reversed) {
}
static void placeholder_instance_to_string(GDExtensionClassInstancePtr p_instance, GDExtensionBool *r_is_valid, GDExtensionStringPtr p_out) {
*r_is_valid = true;
}
static void placeholder_instance_reference(GDExtensionClassInstancePtr p_instance) {
}
static void placeholder_instance_unreference(GDExtensionClassInstancePtr p_instance) {
}
static uint64_t placeholder_instance_get_rid(GDExtensionClassInstancePtr p_instance) {
return 0;
}
static GDExtensionObjectPtr placeholder_class_create_instance(void *p_class_userdata) {
ClassDB::ClassInfo *ti = (ClassDB::ClassInfo *)p_class_userdata;
// Find the closest native parent.
ClassDB::ClassInfo *native_parent = ti->inherits_ptr;
while (native_parent->gdextension) {
native_parent = native_parent->inherits_ptr;
}
ERR_FAIL_NULL_V(native_parent->creation_func, nullptr);
// Construct a placeholder.
Object *obj = native_parent->creation_func();
// ClassDB::set_object_extension_instance() won't be called for placeholders.
// We need need to make sure that all the things it would have done (even if
// done in a different way to support placeholders) will also be done here.
obj->_extension = ClassDB::get_placeholder_extension(ti->name);
obj->_extension_instance = memnew(PlaceholderExtensionInstance(ti->name));
#ifdef TOOLS_ENABLED
if (obj->_extension->track_instance) {
obj->_extension->track_instance(obj->_extension->tracking_userdata, obj);
}
#endif
return obj;
}
static GDExtensionObjectPtr placeholder_class_recreate_instance(void *p_class_userdata, GDExtensionObjectPtr p_object) {
ClassDB::ClassInfo *ti = (ClassDB::ClassInfo *)p_class_userdata;
return memnew(PlaceholderExtensionInstance(ti->name));
}
static void placeholder_class_free_instance(void *p_class_userdata, GDExtensionClassInstancePtr p_instance) {
PlaceholderExtensionInstance *instance = (PlaceholderExtensionInstance *)p_instance;
memdelete(instance);
}
static GDExtensionClassCallVirtual placeholder_class_get_virtual(void *p_class_userdata, GDExtensionConstStringNamePtr p_name) {
return nullptr;
}
};
#endif
bool ClassDB::_is_parent_class(const StringName &p_class, const StringName &p_inherits) {
if (!classes.has(p_class)) {
return false;
}
StringName inherits = p_class;
while (inherits.operator String().length()) {
if (inherits == p_inherits) {
return true;
}
inherits = _get_parent_class(inherits);
}
return false;
}
bool ClassDB::is_parent_class(const StringName &p_class, const StringName &p_inherits) {
OBJTYPE_RLOCK;
return _is_parent_class(p_class, p_inherits);
}
void ClassDB::get_class_list(List<StringName> *p_classes) {
OBJTYPE_RLOCK;
for (const KeyValue<StringName, ClassInfo> &E : classes) {
p_classes->push_back(E.key);
}
p_classes->sort_custom<StringName::AlphCompare>();
}
#ifdef TOOLS_ENABLED
void ClassDB::get_extensions_class_list(List<StringName> *p_classes) {
OBJTYPE_RLOCK;
for (const KeyValue<StringName, ClassInfo> &E : classes) {
if (E.value.api != API_EXTENSION && E.value.api != API_EDITOR_EXTENSION) {
continue;
}
p_classes->push_back(E.key);
}
p_classes->sort_custom<StringName::AlphCompare>();
}
#endif
void ClassDB::get_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes) {
OBJTYPE_RLOCK;
for (const KeyValue<StringName, ClassInfo> &E : classes) {
if (E.key != p_class && _is_parent_class(E.key, p_class)) {
p_classes->push_back(E.key);
}
}
}
void ClassDB::get_direct_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes) {
OBJTYPE_RLOCK;
for (const KeyValue<StringName, ClassInfo> &E : classes) {
if (E.key != p_class && _get_parent_class(E.key) == p_class) {
p_classes->push_back(E.key);
}
}
}
StringName ClassDB::get_parent_class_nocheck(const StringName &p_class) {
OBJTYPE_RLOCK;
ClassInfo *ti = classes.getptr(p_class);
if (!ti) {
return StringName();
}
return ti->inherits;
}
StringName ClassDB::get_compatibility_remapped_class(const StringName &p_class) {
if (classes.has(p_class)) {
return p_class;
}
if (compat_classes.has(p_class)) {
return compat_classes[p_class];
}
return p_class;
}
StringName ClassDB::_get_parent_class(const StringName &p_class) {
ClassInfo *ti = classes.getptr(p_class);
ERR_FAIL_NULL_V_MSG(ti, StringName(), "Cannot get class '" + String(p_class) + "'.");
return ti->inherits;
}
StringName ClassDB::get_parent_class(const StringName &p_class) {
OBJTYPE_RLOCK;
return _get_parent_class(p_class);
}
ClassDB::APIType ClassDB::get_api_type(const StringName &p_class) {
OBJTYPE_RLOCK;
ClassInfo *ti = classes.getptr(p_class);
ERR_FAIL_NULL_V_MSG(ti, API_NONE, "Cannot get class '" + String(p_class) + "'.");
return ti->api;
}
uint32_t ClassDB::get_api_hash(APIType p_api) {
#ifdef DEBUG_METHODS_ENABLED
OBJTYPE_WLOCK;
if (api_hashes_cache.has(p_api)) {
return api_hashes_cache[p_api];
}
uint64_t hash = hash_murmur3_one_64(HashMapHasherDefault::hash(VERSION_FULL_CONFIG));
List<StringName> class_list;
for (const KeyValue<StringName, ClassInfo> &E : classes) {
class_list.push_back(E.key);
}
// Must be alphabetically sorted for hash to compute.
class_list.sort_custom<StringName::AlphCompare>();
for (const StringName &E : class_list) {
ClassInfo *t = classes.getptr(E);
ERR_FAIL_NULL_V_MSG(t, 0, "Cannot get class '" + String(E) + "'.");
if (t->api != p_api || !t->exposed) {
continue;
}
hash = hash_murmur3_one_64(t->name.hash(), hash);
hash = hash_murmur3_one_64(t->inherits.hash(), hash);
{ //methods
List<StringName> snames;
for (const KeyValue<StringName, MethodBind *> &F : t->method_map) {
String name = F.key.operator String();
ERR_CONTINUE(name.is_empty());
if (name[0] == '_') {
continue; // Ignore non-virtual methods that start with an underscore
}
snames.push_back(F.key);
}
snames.sort_custom<StringName::AlphCompare>();
for (const StringName &F : snames) {
MethodBind *mb = t->method_map[F];
hash = hash_murmur3_one_64(mb->get_name().hash(), hash);
hash = hash_murmur3_one_64(mb->get_argument_count(), hash);
hash = hash_murmur3_one_64(mb->get_argument_type(-1), hash); //return
for (int i = 0; i < mb->get_argument_count(); i++) {
const PropertyInfo info = mb->get_argument_info(i);
hash = hash_murmur3_one_64(info.type, hash);
hash = hash_murmur3_one_64(info.name.hash(), hash);
hash = hash_murmur3_one_64(info.hint, hash);
hash = hash_murmur3_one_64(info.hint_string.hash(), hash);
}
hash = hash_murmur3_one_64(mb->get_default_argument_count(), hash);
for (int i = 0; i < mb->get_argument_count(); i++) {
if (mb->has_default_argument(i)) {
Variant da = mb->get_default_argument(i);
hash = hash_murmur3_one_64(da.hash(), hash);
}
}
hash = hash_murmur3_one_64(mb->get_hint_flags(), hash);
}
}
{ //constants
List<StringName> snames;
for (const KeyValue<StringName, int64_t> &F : t->constant_map) {
snames.push_back(F.key);
}
snames.sort_custom<StringName::AlphCompare>();
for (const StringName &F : snames) {
hash = hash_murmur3_one_64(F.hash(), hash);
hash = hash_murmur3_one_64(t->constant_map[F], hash);
}
}
{ //signals
List<StringName> snames;
for (const KeyValue<StringName, MethodInfo> &F : t->signal_map) {
snames.push_back(F.key);
}
snames.sort_custom<StringName::AlphCompare>();
for (const StringName &F : snames) {
MethodInfo &mi = t->signal_map[F];
hash = hash_murmur3_one_64(F.hash(), hash);
for (const PropertyInfo &pi : mi.arguments) {
hash = hash_murmur3_one_64(pi.type, hash);
}
}
}
{ //properties
List<StringName> snames;
for (const KeyValue<StringName, PropertySetGet> &F : t->property_setget) {
snames.push_back(F.key);
}
snames.sort_custom<StringName::AlphCompare>();
for (const StringName &F : snames) {
PropertySetGet *psg = t->property_setget.getptr(F);
ERR_FAIL_NULL_V(psg, 0);
hash = hash_murmur3_one_64(F.hash(), hash);
hash = hash_murmur3_one_64(psg->setter.hash(), hash);
hash = hash_murmur3_one_64(psg->getter.hash(), hash);
}
}
//property list
for (const PropertyInfo &F : t->property_list) {
hash = hash_murmur3_one_64(F.name.hash(), hash);
hash = hash_murmur3_one_64(F.type, hash);
hash = hash_murmur3_one_64(F.hint, hash);
hash = hash_murmur3_one_64(F.hint_string.hash(), hash);
hash = hash_murmur3_one_64(F.usage, hash);
}
}
hash = hash_fmix32(hash);
// Extension API changes at runtime; let's just not cache them by now.
if (p_api != API_EXTENSION && p_api != API_EDITOR_EXTENSION) {
api_hashes_cache[p_api] = hash;
}
return hash;
#else
return 0;
#endif
}
bool ClassDB::class_exists(const StringName &p_class) {
OBJTYPE_RLOCK;
return classes.has(p_class);
}
void ClassDB::add_compatibility_class(const StringName &p_class, const StringName &p_fallback) {
OBJTYPE_WLOCK;
compat_classes[p_class] = p_fallback;
}
StringName ClassDB::get_compatibility_class(const StringName &p_class) {
if (compat_classes.has(p_class)) {
return compat_classes[p_class];
}
return StringName();
}
Object *ClassDB::_instantiate_internal(const StringName &p_class, bool p_require_real_class) {
ClassInfo *ti;
{
OBJTYPE_RLOCK;
ti = classes.getptr(p_class);
if (!ti || ti->disabled || !ti->creation_func || (ti->gdextension && !ti->gdextension->create_instance)) {
if (compat_classes.has(p_class)) {
ti = classes.getptr(compat_classes[p_class]);
}
}
ERR_FAIL_NULL_V_MSG(ti, nullptr, "Cannot get class '" + String(p_class) + "'.");
ERR_FAIL_COND_V_MSG(ti->disabled, nullptr, "Class '" + String(p_class) + "' is disabled.");
ERR_FAIL_NULL_V_MSG(ti->creation_func, nullptr, "Class '" + String(p_class) + "' or its base class cannot be instantiated.");
}
#ifdef TOOLS_ENABLED
if (ti->api == API_EDITOR && !Engine::get_singleton()->is_editor_hint()) {
ERR_PRINT("Class '" + String(p_class) + "' can only be instantiated by editor.");
return nullptr;
}
#endif
if (ti->gdextension && ti->gdextension->create_instance) {
ObjectGDExtension *extension = ti->gdextension;
#ifdef TOOLS_ENABLED
if (!p_require_real_class && ti->is_runtime && Engine::get_singleton()->is_editor_hint()) {
extension = get_placeholder_extension(ti->name);
}
#endif
return (Object *)extension->create_instance(extension->class_userdata);
} else {
#ifdef TOOLS_ENABLED
if (!p_require_real_class && ti->is_runtime && Engine::get_singleton()->is_editor_hint()) {
if (!ti->inherits_ptr || !ti->inherits_ptr->creation_func) {
ERR_PRINT_ONCE(vformat("Cannot make a placeholder instance of runtime class %s because its parent cannot be constructed.", ti->name));
} else {
ObjectGDExtension *extension = get_placeholder_extension(ti->name);
return (Object *)extension->create_instance(extension->class_userdata);
}
}
#endif
return ti->creation_func();
}
}
Object *ClassDB::instantiate(const StringName &p_class) {
return _instantiate_internal(p_class);
}
Object *ClassDB::instantiate_no_placeholders(const StringName &p_class) {
return _instantiate_internal(p_class, true);
}
#ifdef TOOLS_ENABLED
ObjectGDExtension *ClassDB::get_placeholder_extension(const StringName &p_class) {
ObjectGDExtension *placeholder_extension = placeholder_extensions.getptr(p_class);
if (placeholder_extension) {
return placeholder_extension;
}
ClassInfo *ti;
{
OBJTYPE_RLOCK;
ti = classes.getptr(p_class);
if (!ti || ti->disabled || !ti->creation_func || (ti->gdextension && !ti->gdextension->create_instance)) {
if (compat_classes.has(p_class)) {
ti = classes.getptr(compat_classes[p_class]);
}
}
ERR_FAIL_NULL_V_MSG(ti, nullptr, "Cannot get class '" + String(p_class) + "'.");
ERR_FAIL_COND_V_MSG(ti->disabled, nullptr, "Class '" + String(p_class) + "' is disabled.");
}
// Make a "fake" extension to act as a placeholder.
placeholder_extensions[p_class] = ObjectGDExtension();
placeholder_extension = placeholder_extensions.getptr(p_class);
placeholder_extension->is_runtime = true;
placeholder_extension->is_placeholder = true;
if (ti->gdextension) {
placeholder_extension->library = ti->gdextension->library;
placeholder_extension->parent = ti->gdextension->parent;
placeholder_extension->children = ti->gdextension->children;
placeholder_extension->parent_class_name = ti->gdextension->parent_class_name;
placeholder_extension->class_name = ti->gdextension->class_name;
placeholder_extension->editor_class = ti->gdextension->editor_class;
placeholder_extension->reloadable = ti->gdextension->reloadable;
placeholder_extension->is_virtual = ti->gdextension->is_virtual;
placeholder_extension->is_abstract = ti->gdextension->is_abstract;
placeholder_extension->is_exposed = ti->gdextension->is_exposed;
placeholder_extension->tracking_userdata = ti->gdextension->tracking_userdata;
placeholder_extension->track_instance = ti->gdextension->track_instance;
placeholder_extension->untrack_instance = ti->gdextension->untrack_instance;
} else {
placeholder_extension->library = nullptr;
placeholder_extension->parent = nullptr;
placeholder_extension->parent_class_name = ti->inherits;
placeholder_extension->class_name = ti->name;
placeholder_extension->editor_class = ti->api == API_EDITOR;
placeholder_extension->reloadable = false;
placeholder_extension->is_virtual = ti->is_virtual;
placeholder_extension->is_abstract = false;
placeholder_extension->is_exposed = ti->exposed;
}
placeholder_extension->set = &PlaceholderExtensionInstance::placeholder_instance_set;
placeholder_extension->get = &PlaceholderExtensionInstance::placeholder_instance_get;
placeholder_extension->get_property_list = &PlaceholderExtensionInstance::placeholder_instance_get_property_list;
placeholder_extension->free_property_list2 = &PlaceholderExtensionInstance::placeholder_instance_free_property_list;
placeholder_extension->property_can_revert = &PlaceholderExtensionInstance::placeholder_instance_property_can_revert;
placeholder_extension->property_get_revert = &PlaceholderExtensionInstance::placeholder_instance_property_get_revert;
placeholder_extension->validate_property = &PlaceholderExtensionInstance::placeholder_instance_validate_property;
#ifndef DISABLE_DEPRECATED
placeholder_extension->notification = nullptr;
placeholder_extension->free_property_list = nullptr;
#endif // DISABLE_DEPRECATED
placeholder_extension->notification2 = &PlaceholderExtensionInstance::placeholder_instance_notification;
placeholder_extension->to_string = &PlaceholderExtensionInstance::placeholder_instance_to_string;
placeholder_extension->reference = &PlaceholderExtensionInstance::placeholder_instance_reference;
placeholder_extension->unreference = &PlaceholderExtensionInstance::placeholder_instance_unreference;
placeholder_extension->get_rid = &PlaceholderExtensionInstance::placeholder_instance_get_rid;
placeholder_extension->class_userdata = ti;
placeholder_extension->create_instance = &PlaceholderExtensionInstance::placeholder_class_create_instance;
placeholder_extension->free_instance = &PlaceholderExtensionInstance::placeholder_class_free_instance;
placeholder_extension->get_virtual = &PlaceholderExtensionInstance::placeholder_class_get_virtual;
placeholder_extension->get_virtual_call_data = nullptr;
placeholder_extension->call_virtual_with_data = nullptr;
placeholder_extension->recreate_instance = &PlaceholderExtensionInstance::placeholder_class_recreate_instance;
return placeholder_extension;
}
#endif
void ClassDB::set_object_extension_instance(Object *p_object, const StringName &p_class, GDExtensionClassInstancePtr p_instance) {
ERR_FAIL_NULL(p_object);
ClassInfo *ti;
{
OBJTYPE_RLOCK;
ti = classes.getptr(p_class);
if (!ti || ti->disabled || !ti->creation_func || (ti->gdextension && !ti->gdextension->create_instance)) {
if (compat_classes.has(p_class)) {
ti = classes.getptr(compat_classes[p_class]);
}
}
ERR_FAIL_NULL_MSG(ti, "Cannot get class '" + String(p_class) + "'.");
ERR_FAIL_COND_MSG(ti->disabled, "Class '" + String(p_class) + "' is disabled.");
ERR_FAIL_NULL_MSG(ti->gdextension, "Class '" + String(p_class) + "' has no native extension.");
}
p_object->_extension = ti->gdextension;
p_object->_extension_instance = p_instance;
#ifdef TOOLS_ENABLED
if (p_object->_extension->track_instance) {
p_object->_extension->track_instance(p_object->_extension->tracking_userdata, p_object);
}
#endif
}
bool ClassDB::can_instantiate(const StringName &p_class) {
OBJTYPE_RLOCK;
ClassInfo *ti = classes.getptr(p_class);
if (!ti) {
if (!ScriptServer::is_global_class(p_class)) {
ERR_FAIL_V_MSG(false, "Cannot get class '" + String(p_class) + "'.");
}
String path = ScriptServer::get_global_class_path(p_class);
Ref<Script> scr = ResourceLoader::load(path);
return scr.is_valid() && scr->is_valid() && !scr->is_abstract();
}
#ifdef TOOLS_ENABLED
if (ti->api == API_EDITOR && !Engine::get_singleton()->is_editor_hint()) {
return false;
}
#endif
return (!ti->disabled && ti->creation_func != nullptr && !(ti->gdextension && !ti->gdextension->create_instance));
}
bool ClassDB::is_virtual(const StringName &p_class) {
OBJTYPE_RLOCK;
ClassInfo *ti = classes.getptr(p_class);
if (!ti) {
if (!ScriptServer::is_global_class(p_class)) {
ERR_FAIL_V_MSG(false, "Cannot get class '" + String(p_class) + "'.");
}
String path = ScriptServer::get_global_class_path(p_class);
Ref<Script> scr = ResourceLoader::load(path);
return scr.is_valid() && scr->is_valid() && scr->is_abstract();
}
#ifdef TOOLS_ENABLED
if (ti->api == API_EDITOR && !Engine::get_singleton()->is_editor_hint()) {
return false;
}
#endif
return (!ti->disabled && ti->creation_func != nullptr && !(ti->gdextension && !ti->gdextension->create_instance) && ti->is_virtual);
}
void ClassDB::_add_class2(const StringName &p_class, const StringName &p_inherits) {
OBJTYPE_WLOCK;
const StringName &name = p_class;
ERR_FAIL_COND_MSG(classes.has(name), "Class '" + String(p_class) + "' already exists.");
classes[name] = ClassInfo();
ClassInfo &ti = classes[name];
ti.name = name;
ti.inherits = p_inherits;
ti.api = current_api;
if (ti.inherits) {
ERR_FAIL_COND(!classes.has(ti.inherits)); //it MUST be registered.
ti.inherits_ptr = &classes[ti.inherits];
} else {
ti.inherits_ptr = nullptr;
}
}
static MethodInfo info_from_bind(MethodBind *p_method) {
MethodInfo minfo;
minfo.name = p_method->get_name();
minfo.id = p_method->get_method_id();
for (int i = 0; i < p_method->get_argument_count(); i++) {
minfo.arguments.push_back(p_method->get_argument_info(i));
}
minfo.return_val = p_method->get_return_info();
minfo.flags = p_method->get_hint_flags();
for (int i = 0; i < p_method->get_argument_count(); i++) {
if (p_method->has_default_argument(i)) {
minfo.default_arguments.push_back(p_method->get_default_argument(i));
}
}
return minfo;
}
void ClassDB::get_method_list(const StringName &p_class, List<MethodInfo> *p_methods, bool p_no_inheritance, bool p_exclude_from_properties) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
if (type->disabled) {
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
continue;
}
#ifdef DEBUG_METHODS_ENABLED
for (const MethodInfo &E : type->virtual_methods) {
p_methods->push_back(E);
}
for (const StringName &E : type->method_order) {
if (p_exclude_from_properties && type->methods_in_properties.has(E)) {
continue;
}
MethodBind *method = type->method_map.get(E);
MethodInfo minfo = info_from_bind(method);
p_methods->push_back(minfo);
}
#else
for (KeyValue<StringName, MethodBind *> &E : type->method_map) {
MethodBind *m = E.value;
MethodInfo minfo = info_from_bind(m);
p_methods->push_back(minfo);
}
#endif
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
}
}
void ClassDB::get_method_list_with_compatibility(const StringName &p_class, List<Pair<MethodInfo, uint32_t>> *p_methods, bool p_no_inheritance, bool p_exclude_from_properties) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
if (type->disabled) {
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
continue;
}
#ifdef DEBUG_METHODS_ENABLED
for (const MethodInfo &E : type->virtual_methods) {
Pair<MethodInfo, uint32_t> pair(E, 0);
p_methods->push_back(pair);
}
for (const StringName &E : type->method_order) {
if (p_exclude_from_properties && type->methods_in_properties.has(E)) {
continue;
}
MethodBind *method = type->method_map.get(E);
MethodInfo minfo = info_from_bind(method);
Pair<MethodInfo, uint32_t> pair(minfo, method->get_hash());
p_methods->push_back(pair);
}
#else
for (KeyValue<StringName, MethodBind *> &E : type->method_map) {
MethodBind *method = E.value;
MethodInfo minfo = info_from_bind(method);
Pair<MethodInfo, uint32_t> pair(minfo, method->get_hash());
p_methods->push_back(pair);
}
#endif
for (const KeyValue<StringName, LocalVector<MethodBind *, unsigned int, false, false>> &E : type->method_map_compatibility) {
LocalVector<MethodBind *> compat = E.value;
for (MethodBind *method : compat) {
MethodInfo minfo = info_from_bind(method);
Pair<MethodInfo, uint32_t> pair(minfo, method->get_hash());
p_methods->push_back(pair);
}
}
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
}
}
bool ClassDB::get_method_info(const StringName &p_class, const StringName &p_method, MethodInfo *r_info, bool p_no_inheritance, bool p_exclude_from_properties) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
if (type->disabled) {
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
continue;
}
#ifdef DEBUG_METHODS_ENABLED
MethodBind **method = type->method_map.getptr(p_method);
if (method && *method) {
if (r_info != nullptr) {
MethodInfo minfo = info_from_bind(*method);
*r_info = minfo;
}
return true;
} else if (type->virtual_methods_map.has(p_method)) {
if (r_info) {
*r_info = type->virtual_methods_map[p_method];
}
return true;
}
#else
if (type->method_map.has(p_method)) {
if (r_info) {
MethodBind *m = type->method_map[p_method];
MethodInfo minfo = info_from_bind(m);
*r_info = minfo;
}
return true;
}
#endif
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
}
return false;
}
MethodBind *ClassDB::get_method(const StringName &p_class, const StringName &p_name) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
MethodBind **method = type->method_map.getptr(p_name);
if (method && *method) {
return *method;
}
type = type->inherits_ptr;
}
return nullptr;
}
Vector<uint32_t> ClassDB::get_method_compatibility_hashes(const StringName &p_class, const StringName &p_name) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
if (type->method_map_compatibility.has(p_name)) {
LocalVector<MethodBind *> *c = type->method_map_compatibility.getptr(p_name);
Vector<uint32_t> ret;
for (uint32_t i = 0; i < c->size(); i++) {
ret.push_back((*c)[i]->get_hash());
}
return ret;
}
type = type->inherits_ptr;
}
return Vector<uint32_t>();
}
MethodBind *ClassDB::get_method_with_compatibility(const StringName &p_class, const StringName &p_name, uint64_t p_hash, bool *r_method_exists, bool *r_is_deprecated) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
MethodBind **method = type->method_map.getptr(p_name);
if (method && *method) {
if (r_method_exists) {
*r_method_exists = true;
}
if ((*method)->get_hash() == p_hash) {
return *method;
}
}
LocalVector<MethodBind *> *compat = type->method_map_compatibility.getptr(p_name);
if (compat) {
if (r_method_exists) {
*r_method_exists = true;
}
for (uint32_t i = 0; i < compat->size(); i++) {
if ((*compat)[i]->get_hash() == p_hash) {
if (r_is_deprecated) {
*r_is_deprecated = true;
}
return (*compat)[i];
}
}
}
type = type->inherits_ptr;
}
return nullptr;
}
void ClassDB::bind_integer_constant(const StringName &p_class, const StringName &p_enum, const StringName &p_name, int64_t p_constant, bool p_is_bitfield) {
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL(type);
if (type->constant_map.has(p_name)) {
ERR_FAIL();
}
type->constant_map[p_name] = p_constant;
String enum_name = p_enum;
if (!enum_name.is_empty()) {
if (enum_name.contains(".")) {
enum_name = enum_name.get_slicec('.', 1);
}
ClassInfo::EnumInfo *constants_list = type->enum_map.getptr(enum_name);
if (constants_list) {
constants_list->constants.push_back(p_name);
constants_list->is_bitfield = p_is_bitfield;
} else {
ClassInfo::EnumInfo new_list;
new_list.is_bitfield = p_is_bitfield;
new_list.constants.push_back(p_name);
type->enum_map[enum_name] = new_list;
}
}
#ifdef DEBUG_METHODS_ENABLED
type->constant_order.push_back(p_name);
#endif
}
void ClassDB::get_integer_constant_list(const StringName &p_class, List<String> *p_constants, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
#ifdef DEBUG_METHODS_ENABLED
for (const StringName &E : type->constant_order) {
p_constants->push_back(E);
}
#else
for (const KeyValue<StringName, int64_t> &E : type->constant_map) {
p_constants->push_back(E.key);
}
#endif
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
}
}
int64_t ClassDB::get_integer_constant(const StringName &p_class, const StringName &p_name, bool *p_success) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
int64_t *constant = type->constant_map.getptr(p_name);
if (constant) {
if (p_success) {
*p_success = true;
}
return *constant;
}
type = type->inherits_ptr;
}
if (p_success) {
*p_success = false;
}
return 0;
}
bool ClassDB::has_integer_constant(const StringName &p_class, const StringName &p_name, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
if (type->constant_map.has(p_name)) {
return true;
}
if (p_no_inheritance) {
return false;
}
type = type->inherits_ptr;
}
return false;
}
StringName ClassDB::get_integer_constant_enum(const StringName &p_class, const StringName &p_name, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
for (KeyValue<StringName, ClassInfo::EnumInfo> &E : type->enum_map) {
List<StringName> &constants_list = E.value.constants;
const List<StringName>::Element *found = constants_list.find(p_name);
if (found) {
return E.key;
}
}
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
}
return StringName();
}
void ClassDB::get_enum_list(const StringName &p_class, List<StringName> *p_enums, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
for (KeyValue<StringName, ClassInfo::EnumInfo> &E : type->enum_map) {
p_enums->push_back(E.key);
}
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
}
}
void ClassDB::get_enum_constants(const StringName &p_class, const StringName &p_enum, List<StringName> *p_constants, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
const ClassInfo::EnumInfo *constants = type->enum_map.getptr(p_enum);
if (constants) {
for (const List<StringName>::Element *E = constants->constants.front(); E; E = E->next()) {
p_constants->push_back(E->get());
}
}
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
}
}
void ClassDB::set_method_error_return_values(const StringName &p_class, const StringName &p_method, const Vector<Error> &p_values) {
#ifdef DEBUG_METHODS_ENABLED
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL(type);
type->method_error_values[p_method] = p_values;
#endif
}
Vector<Error> ClassDB::get_method_error_return_values(const StringName &p_class, const StringName &p_method) {
#ifdef DEBUG_METHODS_ENABLED
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL_V(type, Vector<Error>());
if (!type->method_error_values.has(p_method)) {
return Vector<Error>();
}
return type->method_error_values[p_method];
#else
return Vector<Error>();
#endif
}
bool ClassDB::has_enum(const StringName &p_class, const StringName &p_name, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
if (type->enum_map.has(p_name)) {
return true;
}
if (p_no_inheritance) {
return false;
}
type = type->inherits_ptr;
}
return false;
}
bool ClassDB::is_enum_bitfield(const StringName &p_class, const StringName &p_name, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
if (type->enum_map.has(p_name) && type->enum_map[p_name].is_bitfield) {
return true;
}
if (p_no_inheritance) {
return false;
}
type = type->inherits_ptr;
}
return false;
}
void ClassDB::add_signal(const StringName &p_class, const MethodInfo &p_signal) {
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL(type);
StringName sname = p_signal.name;
#ifdef DEBUG_METHODS_ENABLED
ClassInfo *check = type;
while (check) {
ERR_FAIL_COND_MSG(check->signal_map.has(sname), "Class '" + String(p_class) + "' already has signal '" + String(sname) + "'.");
check = check->inherits_ptr;
}
#endif
type->signal_map[sname] = p_signal;
}
void ClassDB::get_signal_list(const StringName &p_class, List<MethodInfo> *p_signals, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL(type);
ClassInfo *check = type;
while (check) {
for (KeyValue<StringName, MethodInfo> &E : check->signal_map) {
p_signals->push_back(E.value);
}
if (p_no_inheritance) {
return;
}
check = check->inherits_ptr;
}
}
bool ClassDB::has_signal(const StringName &p_class, const StringName &p_signal, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
if (check->signal_map.has(p_signal)) {
return true;
}
if (p_no_inheritance) {
return false;
}
check = check->inherits_ptr;
}
return false;
}
bool ClassDB::get_signal(const StringName &p_class, const StringName &p_signal, MethodInfo *r_signal) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
if (check->signal_map.has(p_signal)) {
if (r_signal) {
*r_signal = check->signal_map[p_signal];
}
return true;
}
check = check->inherits_ptr;
}
return false;
}
void ClassDB::add_property_group(const StringName &p_class, const String &p_name, const String &p_prefix, int p_indent_depth) {
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL(type);
String prefix = p_prefix;
if (p_indent_depth > 0) {
prefix = vformat("%s,%d", p_prefix, p_indent_depth);
}
type->property_list.push_back(PropertyInfo(Variant::NIL, p_name, PROPERTY_HINT_NONE, prefix, PROPERTY_USAGE_GROUP));
}
void ClassDB::add_property_subgroup(const StringName &p_class, const String &p_name, const String &p_prefix, int p_indent_depth) {
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL(type);
String prefix = p_prefix;
if (p_indent_depth > 0) {
prefix = vformat("%s,%d", p_prefix, p_indent_depth);
}
type->property_list.push_back(PropertyInfo(Variant::NIL, p_name, PROPERTY_HINT_NONE, prefix, PROPERTY_USAGE_SUBGROUP));
}
void ClassDB::add_property_array_count(const StringName &p_class, const String &p_label, const StringName &p_count_property, const StringName &p_count_setter, const StringName &p_count_getter, const String &p_array_element_prefix, uint32_t p_count_usage) {
add_property(p_class, PropertyInfo(Variant::INT, p_count_property, PROPERTY_HINT_NONE, "", p_count_usage | PROPERTY_USAGE_ARRAY, vformat("%s,%s", p_label, p_array_element_prefix)), p_count_setter, p_count_getter);
}
void ClassDB::add_property_array(const StringName &p_class, const StringName &p_path, const String &p_array_element_prefix) {
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL(type);
type->property_list.push_back(PropertyInfo(Variant::NIL, p_path, PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_ARRAY, p_array_element_prefix));
}
// NOTE: For implementation simplicity reasons, this method doesn't allow setters to have optional arguments at the end.
void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinfo, const StringName &p_setter, const StringName &p_getter, int p_index) {
lock.read_lock();
ClassInfo *type = classes.getptr(p_class);
lock.read_unlock();
ERR_FAIL_NULL(type);
MethodBind *mb_set = nullptr;
if (p_setter) {
mb_set = get_method(p_class, p_setter);
#ifdef DEBUG_METHODS_ENABLED
ERR_FAIL_NULL_MSG(mb_set, "Invalid setter '" + p_class + "::" + p_setter + "' for property '" + p_pinfo.name + "'.");
int exp_args = 1 + (p_index >= 0 ? 1 : 0);
ERR_FAIL_COND_MSG(mb_set->get_argument_count() != exp_args, "Invalid function for setter '" + p_class + "::" + p_setter + " for property '" + p_pinfo.name + "'.");
#endif
}
MethodBind *mb_get = nullptr;
if (p_getter) {
mb_get = get_method(p_class, p_getter);
#ifdef DEBUG_METHODS_ENABLED
ERR_FAIL_NULL_MSG(mb_get, "Invalid getter '" + p_class + "::" + p_getter + "' for property '" + p_pinfo.name + "'.");
int exp_args = 0 + (p_index >= 0 ? 1 : 0);
ERR_FAIL_COND_MSG(mb_get->get_argument_count() != exp_args, "Invalid function for getter '" + p_class + "::" + p_getter + "' for property: '" + p_pinfo.name + "'.");
#endif
}
#ifdef DEBUG_METHODS_ENABLED
ERR_FAIL_COND_MSG(type->property_setget.has(p_pinfo.name), "Object '" + p_class + "' already has property '" + p_pinfo.name + "'.");
#endif
OBJTYPE_WLOCK
type->property_list.push_back(p_pinfo);
type->property_map[p_pinfo.name] = p_pinfo;
#ifdef DEBUG_METHODS_ENABLED
if (mb_get) {
type->methods_in_properties.insert(p_getter);
}
if (mb_set) {
type->methods_in_properties.insert(p_setter);
}
#endif
PropertySetGet psg;
psg.setter = p_setter;
psg.getter = p_getter;
psg._setptr = mb_set;
psg._getptr = mb_get;
psg.index = p_index;
psg.type = p_pinfo.type;
type->property_setget[p_pinfo.name] = psg;
}
void ClassDB::set_property_default_value(const StringName &p_class, const StringName &p_name, const Variant &p_default) {
if (!default_values.has(p_class)) {
default_values[p_class] = HashMap<StringName, Variant>();
}
default_values[p_class][p_name] = p_default;
}
void ClassDB::add_linked_property(const StringName &p_class, const String &p_property, const String &p_linked_property) {
#ifdef TOOLS_ENABLED
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
ERR_FAIL_NULL(type);
ERR_FAIL_COND(!type->property_map.has(p_property));
ERR_FAIL_COND(!type->property_map.has(p_linked_property));
if (!type->linked_properties.has(p_property)) {
type->linked_properties.insert(p_property, List<StringName>());
}
type->linked_properties[p_property].push_back(p_linked_property);
#endif
}
void ClassDB::get_property_list(const StringName &p_class, List<PropertyInfo> *p_list, bool p_no_inheritance, const Object *p_validator) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
for (const PropertyInfo &pi : check->property_list) {
if (p_validator) {
// Making a copy as we may modify it.
PropertyInfo pi_mut = pi;
p_validator->validate_property(pi_mut);
p_list->push_back(pi_mut);
} else {
p_list->push_back(pi);
}
}
if (p_no_inheritance) {
return;
}
check = check->inherits_ptr;
}
}
void ClassDB::get_linked_properties_info(const StringName &p_class, const StringName &p_property, List<StringName> *r_properties, bool p_no_inheritance) {
#ifdef TOOLS_ENABLED
ClassInfo *check = classes.getptr(p_class);
while (check) {
if (!check->linked_properties.has(p_property)) {
return;
}
for (const StringName &E : check->linked_properties[p_property]) {
r_properties->push_back(E);
}
if (p_no_inheritance) {
break;
}
check = check->inherits_ptr;
}
#endif
}
bool ClassDB::get_property_info(const StringName &p_class, const StringName &p_property, PropertyInfo *r_info, bool p_no_inheritance, const Object *p_validator) {
OBJTYPE_RLOCK;
ClassInfo *check = classes.getptr(p_class);
while (check) {
if (check->property_map.has(p_property)) {
PropertyInfo pinfo = check->property_map[p_property];
if (p_validator) {
p_validator->validate_property(pinfo);
}
if (r_info) {
*r_info = pinfo;
}
return true;
}
if (p_no_inheritance) {
break;
}
check = check->inherits_ptr;
}
return false;
}
bool ClassDB::set_property(Object *p_object, const StringName &p_property, const Variant &p_value, bool *r_valid) {
ERR_FAIL_NULL_V(p_object, false);
ClassInfo *type = classes.getptr(p_object->get_class_name());
ClassInfo *check = type;
while (check) {
const PropertySetGet *psg = check->property_setget.getptr(p_property);
if (psg) {
if (!psg->setter) {
if (r_valid) {
*r_valid = false;
}
return true; //return true but do nothing
}
Callable::CallError ce;
if (psg->index >= 0) {
Variant index = psg->index;
const Variant *arg[2] = { &index, &p_value };
//p_object->call(psg->setter,arg,2,ce);
if (psg->_setptr) {
psg->_setptr->call(p_object, arg, 2, ce);
} else {
p_object->callp(psg->setter, arg, 2, ce);
}
} else {
const Variant *arg[1] = { &p_value };
if (psg->_setptr) {
psg->_setptr->call(p_object, arg, 1, ce);
} else {
p_object->callp(psg->setter, arg, 1, ce);
}
}
if (r_valid) {
*r_valid = ce.error == Callable::CallError::CALL_OK;
}
return true;
}
check = check->inherits_ptr;
}
return false;
}
bool ClassDB::get_property(Object *p_object, const StringName &p_property, Variant &r_value) {
ERR_FAIL_NULL_V(p_object, false);
ClassInfo *type = classes.getptr(p_object->get_class_name());
ClassInfo *check = type;
while (check) {
const PropertySetGet *psg = check->property_setget.getptr(p_property);
if (psg) {
if (!psg->getter) {
return true; //return true but do nothing
}
if (psg->index >= 0) {
Variant index = psg->index;
const Variant *arg[1] = { &index };
Callable::CallError ce;
r_value = p_object->callp(psg->getter, arg, 1, ce);
} else {
Callable::CallError ce;
if (psg->_getptr) {
r_value = psg->_getptr->call(p_object, nullptr, 0, ce);
} else {
r_value = p_object->callp(psg->getter, nullptr, 0, ce);
}
}
return true;
}
const int64_t *c = check->constant_map.getptr(p_property); //constants count
if (c) {
r_value = *c;
return true;
}
if (check->method_map.has(p_property)) { //methods count
r_value = Callable(p_object, p_property);
return true;
}
if (check->signal_map.has(p_property)) { //signals count
r_value = Signal(p_object, p_property);
return true;
}
check = check->inherits_ptr;
}
// The "free()" method is special, so we assume it exists and return a Callable.
if (p_property == CoreStringName(free_)) {
r_value = Callable(p_object, p_property);
return true;
}
return false;
}
int ClassDB::get_property_index(const StringName &p_class, const StringName &p_property, bool *r_is_valid) {
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
const PropertySetGet *psg = check->property_setget.getptr(p_property);
if (psg) {
if (r_is_valid) {
*r_is_valid = true;
}
return psg->index;
}
check = check->inherits_ptr;
}
if (r_is_valid) {
*r_is_valid = false;
}
return -1;
}
Variant::Type ClassDB::get_property_type(const StringName &p_class, const StringName &p_property, bool *r_is_valid) {
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
const PropertySetGet *psg = check->property_setget.getptr(p_property);
if (psg) {
if (r_is_valid) {
*r_is_valid = true;
}
return psg->type;
}
check = check->inherits_ptr;
}
if (r_is_valid) {
*r_is_valid = false;
}
return Variant::NIL;
}
StringName ClassDB::get_property_setter(const StringName &p_class, const StringName &p_property) {
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
const PropertySetGet *psg = check->property_setget.getptr(p_property);
if (psg) {
return psg->setter;
}
check = check->inherits_ptr;
}
return StringName();
}
StringName ClassDB::get_property_getter(const StringName &p_class, const StringName &p_property) {
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
const PropertySetGet *psg = check->property_setget.getptr(p_property);
if (psg) {
return psg->getter;
}
check = check->inherits_ptr;
}
return StringName();
}
bool ClassDB::has_property(const StringName &p_class, const StringName &p_property, bool p_no_inheritance) {
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
if (check->property_setget.has(p_property)) {
return true;
}
if (p_no_inheritance) {
break;
}
check = check->inherits_ptr;
}
return false;
}
void ClassDB::set_method_flags(const StringName &p_class, const StringName &p_method, int p_flags) {
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
ERR_FAIL_NULL(check);
ERR_FAIL_COND(!check->method_map.has(p_method));
check->method_map[p_method]->set_hint_flags(p_flags);
}
bool ClassDB::has_method(const StringName &p_class, const StringName &p_method, bool p_no_inheritance) {
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
if (check->method_map.has(p_method)) {
return true;
}
if (p_no_inheritance) {
return false;
}
check = check->inherits_ptr;
}
return false;
}
int ClassDB::get_method_argument_count(const StringName &p_class, const StringName &p_method, bool *r_is_valid, bool p_no_inheritance) {
OBJTYPE_RLOCK;
ClassInfo *type = classes.getptr(p_class);
while (type) {
MethodBind **method = type->method_map.getptr(p_method);
if (method && *method) {
if (r_is_valid) {
*r_is_valid = true;
}
return (*method)->get_argument_count();
}
if (p_no_inheritance) {
break;
}
type = type->inherits_ptr;
}
if (r_is_valid) {
*r_is_valid = false;
}
return 0;
}
void ClassDB::bind_method_custom(const StringName &p_class, MethodBind *p_method) {
_bind_method_custom(p_class, p_method, false);
}
void ClassDB::bind_compatibility_method_custom(const StringName &p_class, MethodBind *p_method) {
_bind_method_custom(p_class, p_method, true);
}
void ClassDB::_bind_compatibility(ClassInfo *type, MethodBind *p_method) {
if (!type->method_map_compatibility.has(p_method->get_name())) {
type->method_map_compatibility.insert(p_method->get_name(), LocalVector<MethodBind *>());
}
type->method_map_compatibility[p_method->get_name()].push_back(p_method);
}
void ClassDB::_bind_method_custom(const StringName &p_class, MethodBind *p_method, bool p_compatibility) {
OBJTYPE_WLOCK;
ClassInfo *type = classes.getptr(p_class);
if (!type) {
ERR_FAIL_MSG("Couldn't bind custom method '" + p_method->get_name() + "' for instance '" + p_class + "'.");
}
if (p_compatibility) {
_bind_compatibility(type, p_method);
return;
}
if (type->method_map.has(p_method->get_name())) {
// overloading not supported
ERR_FAIL_MSG("Method already bound '" + p_class + "::" + p_method->get_name() + "'.");
}
#ifdef DEBUG_METHODS_ENABLED
type->method_order.push_back(p_method->get_name());
#endif
type->method_map[p_method->get_name()] = p_method;
}
MethodBind *ClassDB::_bind_vararg_method(MethodBind *p_bind, const StringName &p_name, const Vector<Variant> &p_default_args, bool p_compatibility) {
MethodBind *bind = p_bind;
bind->set_name(p_name);
bind->set_default_arguments(p_default_args);
String instance_type = bind->get_instance_class();
ClassInfo *type = classes.getptr(instance_type);
if (!type) {
memdelete(bind);
ERR_FAIL_NULL_V(type, nullptr);
}
if (p_compatibility) {
_bind_compatibility(type, bind);
return bind;
}
if (type->method_map.has(p_name)) {
memdelete(bind);
// Overloading not supported
ERR_FAIL_V_MSG(nullptr, "Method already bound: " + instance_type + "::" + p_name + ".");
}
type->method_map[p_name] = bind;
#ifdef DEBUG_METHODS_ENABLED
// FIXME: <reduz> set_return_type is no longer in MethodBind, so I guess it should be moved to vararg method bind
//bind->set_return_type("Variant");
type->method_order.push_back(p_name);
#endif
return bind;
}
#ifdef DEBUG_METHODS_ENABLED
MethodBind *ClassDB::bind_methodfi(uint32_t p_flags, MethodBind *p_bind, bool p_compatibility, const MethodDefinition &method_name, const Variant **p_defs, int p_defcount) {
StringName mdname = method_name.name;
#else
MethodBind *ClassDB::bind_methodfi(uint32_t p_flags, MethodBind *p_bind, bool p_compatibility, const char *method_name, const Variant **p_defs, int p_defcount) {
StringName mdname = StaticCString::create(method_name);
#endif
OBJTYPE_WLOCK;
ERR_FAIL_NULL_V(p_bind, nullptr);
p_bind->set_name(mdname);
String instance_type = p_bind->get_instance_class();
#ifdef DEBUG_ENABLED
ERR_FAIL_COND_V_MSG(!p_compatibility && has_method(instance_type, mdname), nullptr, "Class " + String(instance_type) + " already has a method " + String(mdname) + ".");
#endif
ClassInfo *type = classes.getptr(instance_type);
if (!type) {
memdelete(p_bind);
ERR_FAIL_V_MSG(nullptr, "Couldn't bind method '" + mdname + "' for instance '" + instance_type + "'.");
}
if (!p_compatibility && type->method_map.has(mdname)) {
memdelete(p_bind);
// overloading not supported
ERR_FAIL_V_MSG(nullptr, "Method already bound '" + instance_type + "::" + mdname + "'.");
}
#ifdef DEBUG_METHODS_ENABLED
if (method_name.args.size() > p_bind->get_argument_count()) {
memdelete(p_bind);
ERR_FAIL_V_MSG(nullptr, "Method definition provides more arguments than the method actually has '" + instance_type + "::" + mdname + "'.");
}
p_bind->set_argument_names(method_name.args);
if (!p_compatibility) {
type->method_order.push_back(mdname);
}
#endif
if (p_compatibility) {
_bind_compatibility(type, p_bind);
} else {
type->method_map[mdname] = p_bind;
}
Vector<Variant> defvals;
defvals.resize(p_defcount);
for (int i = 0; i < p_defcount; i++) {
defvals.write[i] = *p_defs[i];
}
p_bind->set_default_arguments(defvals);
p_bind->set_hint_flags(p_flags);
return p_bind;
}
void ClassDB::add_virtual_method(const StringName &p_class, const MethodInfo &p_method, bool p_virtual, const Vector<String> &p_arg_names, bool p_object_core) {
ERR_FAIL_COND_MSG(!classes.has(p_class), "Request for nonexistent class '" + p_class + "'.");
OBJTYPE_WLOCK;
#ifdef DEBUG_METHODS_ENABLED
MethodInfo mi = p_method;
if (p_virtual) {
mi.flags |= METHOD_FLAG_VIRTUAL;
}
if (p_object_core) {
mi.flags |= METHOD_FLAG_OBJECT_CORE;
}
if (!p_object_core) {
if (p_arg_names.size() != mi.arguments.size()) {
WARN_PRINT("Mismatch argument name count for virtual method: " + String(p_class) + "::" + p_method.name);
} else {
List<PropertyInfo>::Iterator itr = mi.arguments.begin();
for (int i = 0; i < p_arg_names.size(); ++itr, ++i) {
itr->name = p_arg_names[i];
}
}
}
if (classes[p_class].virtual_methods_map.has(p_method.name)) {
// overloading not supported
ERR_FAIL_MSG("Virtual method already bound '" + String(p_class) + "::" + p_method.name + "'.");
}
classes[p_class].virtual_methods.push_back(mi);
classes[p_class].virtual_methods_map[p_method.name] = mi;
#endif
}
void ClassDB::get_virtual_methods(const StringName &p_class, List<MethodInfo> *p_methods, bool p_no_inheritance) {
ERR_FAIL_COND_MSG(!classes.has(p_class), "Request for nonexistent class '" + p_class + "'.");
#ifdef DEBUG_METHODS_ENABLED
ClassInfo *type = classes.getptr(p_class);
ClassInfo *check = type;
while (check) {
for (const MethodInfo &E : check->virtual_methods) {
p_methods->push_back(E);
}
if (p_no_inheritance) {
return;
}
check = check->inherits_ptr;
}
#endif
}
void ClassDB::add_extension_class_virtual_method(const StringName &p_class, const GDExtensionClassVirtualMethodInfo *p_method_info) {
ERR_FAIL_COND_MSG(!classes.has(p_class), "Request for nonexistent class '" + p_class + "'.");
#ifdef DEBUG_METHODS_ENABLED
PackedStringArray arg_names;
MethodInfo mi;
mi.name = *reinterpret_cast<StringName *>(p_method_info->name);
mi.return_val = PropertyInfo(p_method_info->return_value);
mi.return_val_metadata = p_method_info->return_value_metadata;
mi.flags = p_method_info->method_flags;
for (int i = 0; i < (int)p_method_info->argument_count; i++) {
PropertyInfo arg(p_method_info->arguments[i]);
mi.arguments.push_back(arg);
mi.arguments_metadata.push_back(p_method_info->arguments_metadata[i]);
arg_names.push_back(arg.name);
}
add_virtual_method(p_class, mi, true, arg_names);
#endif
}
void ClassDB::set_class_enabled(const StringName &p_class, bool p_enable) {
OBJTYPE_WLOCK;
ERR_FAIL_COND_MSG(!classes.has(p_class), "Request for nonexistent class '" + p_class + "'.");
classes[p_class].disabled = !p_enable;
}
bool ClassDB::is_class_enabled(const StringName &p_class) {
OBJTYPE_RLOCK;
ClassInfo *ti = classes.getptr(p_class);
if (!ti || !ti->creation_func) {
if (compat_classes.has(p_class)) {
ti = classes.getptr(compat_classes[p_class]);
}
}
ERR_FAIL_NULL_V_MSG(ti, false, "Cannot get class '" + String(p_class) + "'.");
return !ti->disabled;
}
bool ClassDB::is_class_exposed(const StringName &p_class) {
OBJTYPE_RLOCK;
ClassInfo *ti = classes.getptr(p_class);
ERR_FAIL_NULL_V_MSG(ti, false, "Cannot get class '" + String(p_class) + "'.");
return ti->exposed;
}
bool ClassDB::is_class_reloadable(const StringName &p_class) {
OBJTYPE_RLOCK;
ClassInfo *ti = classes.getptr(p_class);
ERR_FAIL_NULL_V_MSG(ti, false, "Cannot get class '" + String(p_class) + "'.");
return ti->reloadable;
}
void ClassDB::add_resource_base_extension(const StringName &p_extension, const StringName &p_class) {
if (resource_base_extensions.has(p_extension)) {
return;
}
resource_base_extensions[p_extension] = p_class;
}
void ClassDB::get_resource_base_extensions(List<String> *p_extensions) {
for (const KeyValue<StringName, StringName> &E : resource_base_extensions) {
p_extensions->push_back(E.key);
}
}
bool ClassDB::is_resource_extension(const StringName &p_extension) {
return resource_base_extensions.has(p_extension);
}
void ClassDB::get_extensions_for_type(const StringName &p_class, List<String> *p_extensions) {
for (const KeyValue<StringName, StringName> &E : resource_base_extensions) {
if (is_parent_class(p_class, E.value) || is_parent_class(E.value, p_class)) {
p_extensions->push_back(E.key);
}
}
}
HashMap<StringName, HashMap<StringName, Variant>> ClassDB::default_values;
HashSet<StringName> ClassDB::default_values_cached;
Variant ClassDB::class_get_default_property_value(const StringName &p_class, const StringName &p_property, bool *r_valid) {
if (!default_values_cached.has(p_class)) {
if (!default_values.has(p_class)) {
default_values[p_class] = HashMap<StringName, Variant>();
}
Object *c = nullptr;
bool cleanup_c = false;
if (Engine::get_singleton()->has_singleton(p_class)) {
c = Engine::get_singleton()->get_singleton_object(p_class);
cleanup_c = false;
} else if (ClassDB::can_instantiate(p_class) && !ClassDB::is_virtual(p_class)) { // Keep this condition in sync with doc_tools.cpp get_documentation_default_value.
c = ClassDB::instantiate_no_placeholders(p_class);
cleanup_c = true;
}
if (c) {
List<PropertyInfo> plist;
c->get_property_list(&plist);
for (const PropertyInfo &E : plist) {
if (E.usage & (PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_EDITOR)) {
if (!default_values[p_class].has(E.name)) {
Variant v = c->get(E.name);
default_values[p_class][E.name] = v;
}
}
}
if (cleanup_c) {
memdelete(c);
}
}
default_values_cached.insert(p_class);
}
if (!default_values.has(p_class)) {
if (r_valid != nullptr) {
*r_valid = false;
}
return Variant();
}
if (!default_values[p_class].has(p_property)) {
if (r_valid != nullptr) {
*r_valid = false;
}
return Variant();
}
if (r_valid != nullptr) {
*r_valid = true;
}
Variant var = default_values[p_class][p_property];
#ifdef DEBUG_ENABLED
// Some properties may have an instantiated Object as default value,
// (like Path2D's `curve` used to have), but that's not a good practice.
// Instead, those properties should use PROPERTY_USAGE_EDITOR_INSTANTIATE_OBJECT
// to be auto-instantiated when created in the editor with the following method:
// EditorNode::get_editor_data().instantiate_object_properties(obj);
if (var.get_type() == Variant::OBJECT) {
Object *obj = var.get_validated_object();
if (obj) {
WARN_PRINT(vformat("Instantiated %s used as default value for %s's \"%s\" property.", obj->get_class(), p_class, p_property));
}
}
#endif
return var;
}
void ClassDB::register_extension_class(ObjectGDExtension *p_extension) {
GLOBAL_LOCK_FUNCTION;
ERR_FAIL_COND_MSG(classes.has(p_extension->class_name), "Class already registered: " + String(p_extension->class_name));
ERR_FAIL_COND_MSG(!classes.has(p_extension->parent_class_name), "Parent class name for extension class not found: " + String(p_extension->parent_class_name));
ClassInfo *parent = classes.getptr(p_extension->parent_class_name);
ClassInfo c;
c.api = p_extension->editor_class ? API_EDITOR_EXTENSION : API_EXTENSION;
c.gdextension = p_extension;
c.name = p_extension->class_name;
c.is_virtual = p_extension->is_virtual;
if (!p_extension->is_abstract) {
// Find the closest ancestor which is either non-abstract or native (or both).
ClassInfo *concrete_ancestor = parent;
while (concrete_ancestor->creation_func == nullptr &&
concrete_ancestor->inherits_ptr != nullptr &&
concrete_ancestor->gdextension != nullptr) {
concrete_ancestor = concrete_ancestor->inherits_ptr;
}
ERR_FAIL_NULL_MSG(concrete_ancestor->creation_func, "Extension class " + String(p_extension->class_name) + " cannot extend native abstract class " + String(concrete_ancestor->name));
c.creation_func = concrete_ancestor->creation_func;
}
c.inherits = parent->name;
c.class_ptr = parent->class_ptr;
c.inherits_ptr = parent;
c.exposed = p_extension->is_exposed;
if (c.exposed) {
// The parent classes should be exposed if it has an exposed child class.
while (parent && !parent->exposed) {
parent->exposed = true;
parent = classes.getptr(parent->name);
}
}
c.reloadable = p_extension->reloadable;
#ifdef TOOLS_ENABLED
c.is_runtime = p_extension->is_runtime;
#endif
classes[p_extension->class_name] = c;
}
void ClassDB::unregister_extension_class(const StringName &p_class, bool p_free_method_binds) {
ClassInfo *c = classes.getptr(p_class);
ERR_FAIL_NULL_MSG(c, "Class '" + String(p_class) + "' does not exist.");
if (p_free_method_binds) {
for (KeyValue<StringName, MethodBind *> &F : c->method_map) {
memdelete(F.value);
}
}
classes.erase(p_class);
default_values_cached.erase(p_class);
default_values.erase(p_class);
#ifdef TOOLS_ENABLED
placeholder_extensions.erase(p_class);
#endif
}
HashMap<StringName, ClassDB::NativeStruct> ClassDB::native_structs;
void ClassDB::register_native_struct(const StringName &p_name, const String &p_code, uint64_t p_current_size) {
NativeStruct ns;
ns.ccode = p_code;
ns.struct_size = p_current_size;
native_structs[p_name] = ns;
}
void ClassDB::get_native_struct_list(List<StringName> *r_names) {
for (const KeyValue<StringName, NativeStruct> &E : native_structs) {
r_names->push_back(E.key);
}
}
String ClassDB::get_native_struct_code(const StringName &p_name) {
ERR_FAIL_COND_V(!native_structs.has(p_name), String());
return native_structs[p_name].ccode;
}
uint64_t ClassDB::get_native_struct_size(const StringName &p_name) {
ERR_FAIL_COND_V(!native_structs.has(p_name), 0);
return native_structs[p_name].struct_size;
}
RWLock ClassDB::lock;
void ClassDB::cleanup_defaults() {
default_values.clear();
default_values_cached.clear();
}
void ClassDB::cleanup() {
//OBJTYPE_LOCK; hah not here
for (KeyValue<StringName, ClassInfo> &E : classes) {
ClassInfo &ti = E.value;
for (KeyValue<StringName, MethodBind *> &F : ti.method_map) {
memdelete(F.value);
}
for (KeyValue<StringName, LocalVector<MethodBind *>> &F : ti.method_map_compatibility) {
for (uint32_t i = 0; i < F.value.size(); i++) {
memdelete(F.value[i]);
}
}
}
classes.clear();
resource_base_extensions.clear();
compat_classes.clear();
native_structs.clear();
}
//