godot/modules/gdscript/gdscript.cpp

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/*************************************************************************/
/* gdscript.cpp */
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/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
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/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
/* 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 "gdscript.h"
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#include <stdint.h>
#include "core/config/engine.h"
#include "core/config/project_settings.h"
#include "core/core_constants.h"
#include "core/core_string_names.h"
#include "core/io/file_access.h"
#include "core/io/file_access_encrypted.h"
#include "core/os/os.h"
#include "gdscript_analyzer.h"
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#include "gdscript_cache.h"
#include "gdscript_compiler.h"
#include "gdscript_parser.h"
#include "gdscript_warning.h"
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#ifdef TESTS_ENABLED
#include "tests/gdscript_test_runner.h"
#endif
///////////////////////////
GDScriptNativeClass::GDScriptNativeClass(const StringName &p_name) {
name = p_name;
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}
bool GDScriptNativeClass::_get(const StringName &p_name, Variant &r_ret) const {
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bool ok;
int v = ClassDB::get_integer_constant(name, p_name, &ok);
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if (ok) {
r_ret = v;
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return true;
} else {
return false;
}
}
void GDScriptNativeClass::_bind_methods() {
ClassDB::bind_method(D_METHOD("new"), &GDScriptNativeClass::_new);
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}
Variant GDScriptNativeClass::_new() {
Object *o = instantiate();
ERR_FAIL_COND_V_MSG(!o, Variant(), "Class type: '" + String(name) + "' is not instantiable.");
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RefCounted *rc = Object::cast_to<RefCounted>(o);
if (rc) {
return REF(rc);
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} else {
return o;
}
}
Object *GDScriptNativeClass::instantiate() {
return ClassDB::instantiate(name);
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}
void GDScript::_super_implicit_constructor(GDScript *p_script, GDScriptInstance *p_instance, Callable::CallError &r_error) {
GDScript *base = p_script->_base;
if (base != nullptr) {
_super_implicit_constructor(base, p_instance, r_error);
if (r_error.error != Callable::CallError::CALL_OK) {
return;
}
}
p_script->implicit_initializer->call(p_instance, nullptr, 0, r_error);
}
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GDScriptInstance *GDScript::_create_instance(const Variant **p_args, int p_argcount, Object *p_owner, bool p_is_ref_counted, Callable::CallError &r_error) {
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/* STEP 1, CREATE */
GDScriptInstance *instance = memnew(GDScriptInstance);
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instance->base_ref_counted = p_is_ref_counted;
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instance->members.resize(member_indices.size());
instance->script = Ref<GDScript>(this);
instance->owner = p_owner;
instance->owner_id = p_owner->get_instance_id();
#ifdef DEBUG_ENABLED
//needed for hot reloading
for (Map<StringName, MemberInfo>::Element *E = member_indices.front(); E; E = E->next()) {
instance->member_indices_cache[E->key()] = E->get().index;
}
#endif
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instance->owner->set_script_instance(instance);
/* STEP 2, INITIALIZE AND CONSTRUCT */
{
MutexLock lock(GDScriptLanguage::singleton->lock);
instances.insert(instance->owner);
}
_super_implicit_constructor(this, instance, r_error);
if (r_error.error != Callable::CallError::CALL_OK) {
instance->script = Ref<GDScript>();
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instance->owner->set_script_instance(nullptr);
{
MutexLock lock(GDScriptLanguage::singleton->lock);
instances.erase(p_owner);
}
ERR_FAIL_V_MSG(nullptr, "Error constructing a GDScriptInstance.");
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}
if (p_argcount < 0) {
return instance;
}
if (initializer != nullptr) {
initializer->call(instance, p_args, p_argcount, r_error);
if (r_error.error != Callable::CallError::CALL_OK) {
instance->script = Ref<GDScript>();
instance->owner->set_script_instance(nullptr);
{
MutexLock lock(GDScriptLanguage::singleton->lock);
instances.erase(p_owner);
}
ERR_FAIL_V_MSG(nullptr, "Error constructing a GDScriptInstance.");
}
}
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//@TODO make thread safe
return instance;
}
Variant GDScript::_new(const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
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/* STEP 1, CREATE */
if (!valid) {
r_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD;
return Variant();
}
r_error.error = Callable::CallError::CALL_OK;
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REF ref;
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Object *owner = nullptr;
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GDScript *_baseptr = this;
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while (_baseptr->_base) {
_baseptr = _baseptr->_base;
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}
ERR_FAIL_COND_V(_baseptr->native.is_null(), Variant());
if (_baseptr->native.ptr()) {
owner = _baseptr->native->instantiate();
} else {
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owner = memnew(RefCounted); //by default, no base means use reference
}
ERR_FAIL_COND_V_MSG(!owner, Variant(), "Can't inherit from a virtual class.");
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RefCounted *r = Object::cast_to<RefCounted>(owner);
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if (r) {
ref = REF(r);
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}
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GDScriptInstance *instance = _create_instance(p_args, p_argcount, owner, r != nullptr, r_error);
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if (!instance) {
if (ref.is_null()) {
memdelete(owner); //no owner, sorry
}
return Variant();
}
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if (ref.is_valid()) {
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return ref;
} else {
return owner;
}
}
bool GDScript::can_instantiate() const {
#ifdef TOOLS_ENABLED
return valid && (tool || ScriptServer::is_scripting_enabled());
#else
return valid;
#endif
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}
Ref<Script> GDScript::get_base_script() const {
if (_base) {
return Ref<GDScript>(_base);
} else {
return Ref<Script>();
}
}
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StringName GDScript::get_instance_base_type() const {
if (native.is_valid()) {
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return native->get_name();
}
if (base.is_valid() && base->is_valid()) {
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return base->get_instance_base_type();
}
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return StringName();
}
struct _GDScriptMemberSort {
int index = 0;
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StringName name;
_FORCE_INLINE_ bool operator<(const _GDScriptMemberSort &p_member) const { return index < p_member.index; }
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};
#ifdef TOOLS_ENABLED
void GDScript::_placeholder_erased(PlaceHolderScriptInstance *p_placeholder) {
placeholders.erase(p_placeholder);
}
#endif
void GDScript::_get_script_method_list(List<MethodInfo> *r_list, bool p_include_base) const {
const GDScript *current = this;
while (current) {
for (const Map<StringName, GDScriptFunction *>::Element *E = current->member_functions.front(); E; E = E->next()) {
GDScriptFunction *func = E->get();
MethodInfo mi;
mi.name = E->key();
for (int i = 0; i < func->get_argument_count(); i++) {
PropertyInfo arginfo = func->get_argument_type(i);
#ifdef TOOLS_ENABLED
arginfo.name = func->get_argument_name(i);
#endif
mi.arguments.push_back(arginfo);
}
mi.return_val = func->get_return_type();
r_list->push_back(mi);
}
if (!p_include_base) {
return;
}
current = current->_base;
}
}
void GDScript::get_script_method_list(List<MethodInfo> *r_list) const {
_get_script_method_list(r_list, true);
}
void GDScript::_get_script_property_list(List<PropertyInfo> *r_list, bool p_include_base) const {
const GDScript *sptr = this;
List<PropertyInfo> props;
while (sptr) {
Vector<_GDScriptMemberSort> msort;
for (Map<StringName, PropertyInfo>::Element *E = sptr->member_info.front(); E; E = E->next()) {
_GDScriptMemberSort ms;
ERR_CONTINUE(!sptr->member_indices.has(E->key()));
ms.index = sptr->member_indices[E->key()].index;
ms.name = E->key();
msort.push_back(ms);
}
msort.sort();
msort.reverse();
for (int i = 0; i < msort.size(); i++) {
props.push_front(sptr->member_info[msort[i].name]);
}
if (!p_include_base) {
break;
}
sptr = sptr->_base;
}
for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
r_list->push_back(E->get());
}
}
void GDScript::get_script_property_list(List<PropertyInfo> *r_list) const {
_get_script_property_list(r_list, true);
}
bool GDScript::has_method(const StringName &p_method) const {
return member_functions.has(p_method);
}
MethodInfo GDScript::get_method_info(const StringName &p_method) const {
const Map<StringName, GDScriptFunction *>::Element *E = member_functions.find(p_method);
if (!E) {
return MethodInfo();
}
GDScriptFunction *func = E->get();
MethodInfo mi;
mi.name = E->key();
for (int i = 0; i < func->get_argument_count(); i++) {
mi.arguments.push_back(func->get_argument_type(i));
}
mi.return_val = func->get_return_type();
return mi;
}
bool GDScript::get_property_default_value(const StringName &p_property, Variant &r_value) const {
#ifdef TOOLS_ENABLED
const Map<StringName, Variant>::Element *E = member_default_values_cache.find(p_property);
if (E) {
r_value = E->get();
return true;
}
if (base_cache.is_valid()) {
return base_cache->get_property_default_value(p_property, r_value);
}
#endif
return false;
}
ScriptInstance *GDScript::instance_create(Object *p_this) {
GDScript *top = this;
while (top->_base) {
top = top->_base;
}
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if (top->native.is_valid()) {
if (!ClassDB::is_parent_class(p_this->get_class_name(), top->native->get_name())) {
if (EngineDebugger::is_active()) {
GDScriptLanguage::get_singleton()->debug_break_parse(get_path(), 1, "Script inherits from native type '" + String(top->native->get_name()) + "', so it can't be instantiated in object of type: '" + p_this->get_class() + "'");
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}
ERR_FAIL_V_MSG(nullptr, "Script inherits from native type '" + String(top->native->get_name()) + "', so it can't be instantiated in object of type '" + p_this->get_class() + "'" + ".");
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}
}
Callable::CallError unchecked_error;
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return _create_instance(nullptr, 0, p_this, Object::cast_to<RefCounted>(p_this) != nullptr, unchecked_error);
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}
PlaceHolderScriptInstance *GDScript::placeholder_instance_create(Object *p_this) {
#ifdef TOOLS_ENABLED
PlaceHolderScriptInstance *si = memnew(PlaceHolderScriptInstance(GDScriptLanguage::get_singleton(), Ref<Script>(this), p_this));
placeholders.insert(si);
_update_exports(nullptr, false, si);
return si;
#else
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return nullptr;
#endif
}
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bool GDScript::instance_has(const Object *p_this) const {
MutexLock lock(GDScriptLanguage::singleton->lock);
return instances.has((Object *)p_this);
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}
bool GDScript::has_source_code() const {
return source != "";
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}
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String GDScript::get_source_code() const {
return source;
}
void GDScript::set_source_code(const String &p_code) {
if (source == p_code) {
return;
}
source = p_code;
#ifdef TOOLS_ENABLED
source_changed_cache = true;
#endif
}
#ifdef TOOLS_ENABLED
void GDScript::_update_exports_values(Map<StringName, Variant> &values, List<PropertyInfo> &propnames) {
if (base_cache.is_valid()) {
base_cache->_update_exports_values(values, propnames);
}
for (Map<StringName, Variant>::Element *E = member_default_values_cache.front(); E; E = E->next()) {
values[E->key()] = E->get();
}
for (List<PropertyInfo>::Element *E = members_cache.front(); E; E = E->next()) {
propnames.push_back(E->get());
}
}
void GDScript::_add_doc(const DocData::ClassDoc &p_inner_class) {
if (_owner) {
_owner->_add_doc(p_inner_class);
} else {
for (int i = 0; i < docs.size(); i++) {
if (docs[i].name == p_inner_class.name) {
docs.remove(i);
break;
}
}
docs.append(p_inner_class);
}
}
void GDScript::_clear_doc() {
docs.clear();
doc = DocData::ClassDoc();
}
void GDScript::_update_doc() {
_clear_doc();
doc.script_path = "\"" + get_path().get_slice("://", 1) + "\"";
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if (!name.is_empty()) {
doc.name = name;
} else {
doc.name = doc.script_path;
}
if (_owner) {
doc.name = _owner->doc.name + "." + doc.name;
doc.script_path = doc.script_path + "." + doc.name;
}
doc.is_script_doc = true;
if (base.is_valid() && base->is_valid()) {
if (base->doc.name != String()) {
doc.inherits = base->doc.name;
} else {
doc.inherits = base->get_instance_base_type();
}
} else if (native.is_valid()) {
doc.inherits = native->get_name();
}
doc.brief_description = doc_brief_description;
doc.description = doc_description;
doc.tutorials = doc_tutorials;
for (Map<String, DocData::EnumDoc>::Element *E = doc_enums.front(); E; E = E->next()) {
if (E->value().description != "") {
doc.enums[E->key()] = E->value().description;
}
}
List<MethodInfo> methods;
_get_script_method_list(&methods, false);
for (int i = 0; i < methods.size(); i++) {
// Ignore internal methods.
if (methods[i].name[0] == '@') {
continue;
}
DocData::MethodDoc method_doc;
const String &class_name = methods[i].name;
if (member_functions.has(class_name)) {
GDScriptFunction *fn = member_functions[class_name];
// Change class name if return type is script reference.
GDScriptDataType return_type = fn->get_return_type();
if (return_type.kind == GDScriptDataType::GDSCRIPT) {
methods[i].return_val.class_name = _get_gdscript_reference_class_name(Object::cast_to<GDScript>(return_type.script_type));
}
// Change class name if argument is script reference.
for (int j = 0; j < fn->get_argument_count(); j++) {
GDScriptDataType arg_type = fn->get_argument_type(j);
if (arg_type.kind == GDScriptDataType::GDSCRIPT) {
methods[i].arguments[j].class_name = _get_gdscript_reference_class_name(Object::cast_to<GDScript>(arg_type.script_type));
}
}
}
if (doc_functions.has(methods[i].name)) {
DocData::method_doc_from_methodinfo(method_doc, methods[i], doc_functions[methods[i].name]);
} else {
DocData::method_doc_from_methodinfo(method_doc, methods[i], String());
}
doc.methods.push_back(method_doc);
}
List<PropertyInfo> props;
_get_script_property_list(&props, false);
for (int i = 0; i < props.size(); i++) {
ScriptMemberInfo scr_member_info;
scr_member_info.propinfo = props[i];
scr_member_info.propinfo.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
if (member_indices.has(props[i].name)) {
const MemberInfo &mi = member_indices[props[i].name];
scr_member_info.setter = mi.setter;
scr_member_info.getter = mi.getter;
if (mi.data_type.kind == GDScriptDataType::GDSCRIPT) {
scr_member_info.propinfo.class_name = _get_gdscript_reference_class_name(
Object::cast_to<GDScript>(mi.data_type.script_type));
}
}
if (member_default_values.has(props[i].name)) {
scr_member_info.has_default_value = true;
scr_member_info.default_value = member_default_values[props[i].name];
}
if (doc_variables.has(props[i].name)) {
scr_member_info.doc_string = doc_variables[props[i].name];
}
DocData::PropertyDoc prop_doc;
DocData::property_doc_from_scriptmemberinfo(prop_doc, scr_member_info);
doc.properties.push_back(prop_doc);
}
List<MethodInfo> signals;
_get_script_signal_list(&signals, false);
for (int i = 0; i < signals.size(); i++) {
DocData::MethodDoc signal_doc;
if (doc_signals.has(signals[i].name)) {
DocData::signal_doc_from_methodinfo(signal_doc, signals[i], signals[i].name);
} else {
DocData::signal_doc_from_methodinfo(signal_doc, signals[i], String());
}
doc.signals.push_back(signal_doc);
}
for (Map<StringName, Variant>::Element *E = constants.front(); E; E = E->next()) {
if (subclasses.has(E->key())) {
continue;
}
// Enums.
bool is_enum = false;
if (E->value().get_type() == Variant::DICTIONARY) {
if (doc_enums.has(E->key())) {
is_enum = true;
for (int i = 0; i < doc_enums[E->key()].values.size(); i++) {
doc_enums[E->key()].values.write[i].enumeration = E->key();
doc.constants.push_back(doc_enums[E->key()].values[i]);
}
}
}
if (!is_enum && doc_enums.has("@unnamed_enums")) {
for (int i = 0; i < doc_enums["@unnamed_enums"].values.size(); i++) {
if (E->key() == doc_enums["@unnamed_enums"].values[i].name) {
is_enum = true;
DocData::ConstantDoc constant_doc;
constant_doc.enumeration = "@unnamed_enums";
DocData::constant_doc_from_variant(constant_doc, E->key(), E->value(), doc_enums["@unnamed_enums"].values[i].description);
doc.constants.push_back(constant_doc);
break;
}
}
}
if (!is_enum) {
DocData::ConstantDoc constant_doc;
String doc_description;
if (doc_constants.has(E->key())) {
doc_description = doc_constants[E->key()];
}
DocData::constant_doc_from_variant(constant_doc, E->key(), E->value(), doc_description);
doc.constants.push_back(constant_doc);
}
}
for (Map<StringName, Ref<GDScript>>::Element *E = subclasses.front(); E; E = E->next()) {
E->get()->_update_doc();
}
_add_doc(doc);
}
#endif
bool GDScript::_update_exports(bool *r_err, bool p_recursive_call, PlaceHolderScriptInstance *p_instance_to_update) {
#ifdef TOOLS_ENABLED
static Vector<GDScript *> base_caches;
if (!p_recursive_call) {
base_caches.clear();
}
base_caches.append(this);
bool changed = false;
if (source_changed_cache) {
source_changed_cache = false;
changed = true;
String basedir = path;
if (basedir == "") {
basedir = get_path();
}
if (basedir != "") {
basedir = basedir.get_base_dir();
}
GDScriptParser parser;
GDScriptAnalyzer analyzer(&parser);
Error err = parser.parse(source, path, false);
if (err == OK && analyzer.analyze() == OK) {
const GDScriptParser::ClassNode *c = parser.get_tree();
if (base_cache.is_valid()) {
base_cache->inheriters_cache.erase(get_instance_id());
base_cache = Ref<GDScript>();
}
if (c->extends_used) {
String path = "";
if (String(c->extends_path) != "" && String(c->extends_path) != get_path()) {
path = c->extends_path;
if (path.is_rel_path()) {
String base = get_path();
if (base == "" || base.is_rel_path()) {
ERR_PRINT(("Could not resolve relative path for parent class: " + path).utf8().get_data());
} else {
path = base.get_base_dir().plus_file(path);
}
}
} else if (c->extends.size() != 0) {
const StringName &base = c->extends[0];
if (ScriptServer::is_global_class(base)) {
path = ScriptServer::get_global_class_path(base);
}
}
if (path != "") {
if (path != get_path()) {
Ref<GDScript> bf = ResourceLoader::load(path);
if (bf.is_valid()) {
base_cache = bf;
bf->inheriters_cache.insert(get_instance_id());
}
} else {
ERR_PRINT(("Path extending itself in " + path).utf8().get_data());
}
}
}
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members_cache.clear();
member_default_values_cache.clear();
_signals.clear();
for (int i = 0; i < c->members.size(); i++) {
const GDScriptParser::ClassNode::Member &member = c->members[i];
switch (member.type) {
case GDScriptParser::ClassNode::Member::VARIABLE: {
if (!member.variable->exported) {
continue;
}
members_cache.push_back(member.variable->export_info);
Variant default_value;
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if (member.variable->initializer && member.variable->initializer->is_constant) {
default_value = member.variable->initializer->reduced_value;
}
member_default_values_cache[member.variable->identifier->name] = default_value;
} break;
case GDScriptParser::ClassNode::Member::SIGNAL: {
// TODO: Cache this in parser to avoid loops like this.
Vector<StringName> parameters_names;
parameters_names.resize(member.signal->parameters.size());
for (int j = 0; j < member.signal->parameters.size(); j++) {
parameters_names.write[j] = member.signal->parameters[j]->identifier->name;
}
_signals[member.signal->identifier->name] = parameters_names;
} break;
default:
break; // Nothing.
}
}
} else {
placeholder_fallback_enabled = true;
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return false;
}
} else if (placeholder_fallback_enabled) {
return false;
}
placeholder_fallback_enabled = false;
if (base_cache.is_valid() && base_cache->is_valid()) {
for (int i = 0; i < base_caches.size(); i++) {
if (base_caches[i] == base_cache.ptr()) {
if (r_err) {
*r_err = true;
}
valid = false; // to show error in the editor
base_cache->valid = false;
base_cache->inheriters_cache.clear(); // to prevent future stackoverflows
base_cache.unref();
base.unref();
_base = nullptr;
ERR_FAIL_V_MSG(false, "Cyclic inheritance in script class.");
}
}
if (base_cache->_update_exports(r_err, true)) {
if (r_err && *r_err) {
return false;
}
changed = true;
}
}
if ((changed || p_instance_to_update) && placeholders.size()) { //hm :(
// update placeholders if any
Map<StringName, Variant> values;
List<PropertyInfo> propnames;
_update_exports_values(values, propnames);
if (changed) {
for (Set<PlaceHolderScriptInstance *>::Element *E = placeholders.front(); E; E = E->next()) {
E->get()->update(propnames, values);
}
} else {
p_instance_to_update->update(propnames, values);
}
}
return changed;
#else
return false;
#endif
}
void GDScript::update_exports() {
#ifdef TOOLS_ENABLED
bool cyclic_error = false;
_update_exports(&cyclic_error);
if (cyclic_error) {
return;
}
Set<ObjectID> copy = inheriters_cache; //might get modified
for (Set<ObjectID>::Element *E = copy.front(); E; E = E->next()) {
Object *id = ObjectDB::get_instance(E->get());
GDScript *s = Object::cast_to<GDScript>(id);
if (!s) {
continue;
}
s->update_exports();
}
#endif
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}
void GDScript::_set_subclass_path(Ref<GDScript> &p_sc, const String &p_path) {
p_sc->path = p_path;
for (Map<StringName, Ref<GDScript>>::Element *E = p_sc->subclasses.front(); E; E = E->next()) {
_set_subclass_path(E->get(), p_path);
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}
}
Error GDScript::reload(bool p_keep_state) {
bool has_instances;
{
MutexLock lock(GDScriptLanguage::singleton->lock);
has_instances = instances.size();
}
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ERR_FAIL_COND_V(!p_keep_state && has_instances, ERR_ALREADY_IN_USE);
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String basedir = path;
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if (basedir == "") {
basedir = get_path();
}
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if (basedir != "") {
basedir = basedir.get_base_dir();
}
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if (source.find("%BASE%") != -1) {
//loading a template, don't parse
return OK;
}
{
String source_path = path;
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if (source_path.is_empty()) {
source_path = get_path();
}
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if (!source_path.is_empty()) {
MutexLock lock(GDScriptCache::singleton->lock);
if (!GDScriptCache::singleton->shallow_gdscript_cache.has(source_path)) {
GDScriptCache::singleton->shallow_gdscript_cache[source_path] = this;
}
}
}
valid = false;
GDScriptParser parser;
Error err = parser.parse(source, path, false);
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if (err) {
if (EngineDebugger::is_active()) {
GDScriptLanguage::get_singleton()->debug_break_parse(get_path(), parser.get_errors().front()->get().line, "Parser Error: " + parser.get_errors().front()->get().message);
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}
// TODO: Show all error messages.
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_err_print_error("GDScript::reload", path.is_empty() ? "built-in" : (const char *)path.utf8().get_data(), parser.get_errors().front()->get().line, ("Parse Error: " + parser.get_errors().front()->get().message).utf8().get_data(), ERR_HANDLER_SCRIPT);
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ERR_FAIL_V(ERR_PARSE_ERROR);
}
GDScriptAnalyzer analyzer(&parser);
err = analyzer.analyze();
if (err) {
if (EngineDebugger::is_active()) {
GDScriptLanguage::get_singleton()->debug_break_parse(get_path(), parser.get_errors().front()->get().line, "Parser Error: " + parser.get_errors().front()->get().message);
}
const List<GDScriptParser::ParserError>::Element *e = parser.get_errors().front();
while (e != nullptr) {
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_err_print_error("GDScript::reload", path.is_empty() ? "built-in" : (const char *)path.utf8().get_data(), e->get().line, ("Parse Error: " + e->get().message).utf8().get_data(), ERR_HANDLER_SCRIPT);
e = e->next();
}
ERR_FAIL_V(ERR_PARSE_ERROR);
}
bool can_run = ScriptServer::is_scripting_enabled() || parser.is_tool();
GDScriptCompiler compiler;
err = compiler.compile(&parser, this, p_keep_state);
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#ifdef TOOLS_ENABLED
_update_doc();
#endif
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if (err) {
if (can_run) {
if (EngineDebugger::is_active()) {
GDScriptLanguage::get_singleton()->debug_break_parse(get_path(), compiler.get_error_line(), "Parser Error: " + compiler.get_error());
}
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_err_print_error("GDScript::reload", path.is_empty() ? "built-in" : (const char *)path.utf8().get_data(), compiler.get_error_line(), ("Compile Error: " + compiler.get_error()).utf8().get_data(), ERR_HANDLER_SCRIPT);
ERR_FAIL_V(ERR_COMPILATION_FAILED);
} else {
return err;
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}
}
#ifdef DEBUG_ENABLED
for (const List<GDScriptWarning>::Element *E = parser.get_warnings().front(); E; E = E->next()) {
const GDScriptWarning &warning = E->get();
if (EngineDebugger::is_active()) {
Vector<ScriptLanguage::StackInfo> si;
EngineDebugger::get_script_debugger()->send_error("", get_path(), warning.start_line, warning.get_name(), warning.get_message(), ERR_HANDLER_WARNING, si);
}
}
#endif
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valid = true;
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for (Map<StringName, Ref<GDScript>>::Element *E = subclasses.front(); E; E = E->next()) {
_set_subclass_path(E->get(), path);
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}
_init_rpc_methods_properties();
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return OK;
}
ScriptLanguage *GDScript::get_language() const {
return GDScriptLanguage::get_singleton();
}
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void GDScript::get_constants(Map<StringName, Variant> *p_constants) {
if (p_constants) {
for (Map<StringName, Variant>::Element *E = constants.front(); E; E = E->next()) {
(*p_constants)[E->key()] = E->value();
}
}
}
void GDScript::get_members(Set<StringName> *p_members) {
if (p_members) {
for (Set<StringName>::Element *E = members.front(); E; E = E->next()) {
p_members->insert(E->get());
}
}
}
const Vector<MultiplayerAPI::RPCConfig> GDScript::get_rpc_methods() const {
return rpc_functions;
}
Variant GDScript::call(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
GDScript *top = this;
while (top) {
Map<StringName, GDScriptFunction *>::Element *E = top->member_functions.find(p_method);
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if (E) {
ERR_FAIL_COND_V_MSG(!E->get()->is_static(), Variant(), "Can't call non-static function '" + String(p_method) + "' in script.");
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return E->get()->call(nullptr, p_args, p_argcount, r_error);
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}
top = top->_base;
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}
//none found, regular
return Script::call(p_method, p_args, p_argcount, r_error);
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}
bool GDScript::_get(const StringName &p_name, Variant &r_ret) const {
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{
const GDScript *top = this;
while (top) {
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{
const Map<StringName, Variant>::Element *E = top->constants.find(p_name);
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if (E) {
r_ret = E->get();
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return true;
}
}
{
const Map<StringName, Ref<GDScript>>::Element *E = subclasses.find(p_name);
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if (E) {
r_ret = E->get();
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return true;
}
}
top = top->_base;
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}
if (p_name == GDScriptLanguage::get_singleton()->strings._script_source) {
r_ret = get_source_code();
return true;
}
}
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return false;
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}
bool GDScript::_set(const StringName &p_name, const Variant &p_value) {
if (p_name == GDScriptLanguage::get_singleton()->strings._script_source) {
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set_source_code(p_value);
reload();
} else {
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return false;
}
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return true;
}
void GDScript::_get_property_list(List<PropertyInfo> *p_properties) const {
p_properties->push_back(PropertyInfo(Variant::STRING, "script/source", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL));
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}
void GDScript::_bind_methods() {
ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "new", &GDScript::_new, MethodInfo("new"));
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ClassDB::bind_method(D_METHOD("get_as_byte_code"), &GDScript::get_as_byte_code);
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}
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Vector<uint8_t> GDScript::get_as_byte_code() const {
return Vector<uint8_t>();
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};
// TODO: Fully remove this. There's not this kind of "bytecode" anymore.
Error GDScript::load_byte_code(const String &p_path) {
return ERR_COMPILATION_FAILED;
}
Error GDScript::load_source_code(const String &p_path) {
Vector<uint8_t> sourcef;
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Error err;
FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
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if (err) {
ERR_FAIL_COND_V(err, err);
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}
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uint64_t len = f->get_length();
sourcef.resize(len + 1);
uint8_t *w = sourcef.ptrw();
uint64_t r = f->get_buffer(w, len);
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f->close();
memdelete(f);
ERR_FAIL_COND_V(r != len, ERR_CANT_OPEN);
w[len] = 0;
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String s;
if (s.parse_utf8((const char *)w)) {
ERR_FAIL_V_MSG(ERR_INVALID_DATA, "Script '" + p_path + "' contains invalid unicode (UTF-8), so it was not loaded. Please ensure that scripts are saved in valid UTF-8 unicode.");
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}
source = s;
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#ifdef TOOLS_ENABLED
source_changed_cache = true;
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#endif
path = p_path;
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return OK;
}
const Map<StringName, GDScriptFunction *> &GDScript::debug_get_member_functions() const {
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return member_functions;
}
StringName GDScript::debug_get_member_by_index(int p_idx) const {
for (const Map<StringName, MemberInfo>::Element *E = member_indices.front(); E; E = E->next()) {
if (E->get().index == p_idx) {
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return E->key();
}
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}
return "<error>";
}
Ref<GDScript> GDScript::get_base() const {
return base;
}
bool GDScript::inherits_script(const Ref<Script> &p_script) const {
Ref<GDScript> gd = p_script;
if (gd.is_null()) {
return false;
}
const GDScript *s = this;
while (s) {
if (s == p_script.ptr()) {
return true;
}
s = s->_base;
}
return false;
}
bool GDScript::has_script_signal(const StringName &p_signal) const {
if (_signals.has(p_signal)) {
return true;
}
if (base.is_valid()) {
return base->has_script_signal(p_signal);
}
#ifdef TOOLS_ENABLED
else if (base_cache.is_valid()) {
return base_cache->has_script_signal(p_signal);
}
#endif
return false;
}
void GDScript::_get_script_signal_list(List<MethodInfo> *r_list, bool p_include_base) const {
for (const Map<StringName, Vector<StringName>>::Element *E = _signals.front(); E; E = E->next()) {
MethodInfo mi;
mi.name = E->key();
for (int i = 0; i < E->get().size(); i++) {
PropertyInfo arg;
arg.name = E->get()[i];
mi.arguments.push_back(arg);
}
r_list->push_back(mi);
}
if (!p_include_base) {
return;
}
if (base.is_valid()) {
base->get_script_signal_list(r_list);
}
#ifdef TOOLS_ENABLED
else if (base_cache.is_valid()) {
base_cache->get_script_signal_list(r_list);
}
#endif
}
void GDScript::get_script_signal_list(List<MethodInfo> *r_signals) const {
_get_script_signal_list(r_signals, true);
}
String GDScript::_get_gdscript_reference_class_name(const GDScript *p_gdscript) {
ERR_FAIL_NULL_V(p_gdscript, String());
String class_name;
while (p_gdscript) {
if (class_name == "") {
class_name = p_gdscript->get_script_class_name();
} else {
class_name = p_gdscript->get_script_class_name() + "." + class_name;
}
p_gdscript = p_gdscript->_owner;
}
return class_name;
}
GDScript::GDScript() :
script_list(this) {
#ifdef DEBUG_ENABLED
{
MutexLock lock(GDScriptLanguage::get_singleton()->lock);
GDScriptLanguage::get_singleton()->script_list.add(&script_list);
}
#endif
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}
void GDScript::_save_orphaned_subclasses() {
struct ClassRefWithName {
ObjectID id;
String fully_qualified_name;
};
Vector<ClassRefWithName> weak_subclasses;
// collect subclasses ObjectID and name
for (Map<StringName, Ref<GDScript>>::Element *E = subclasses.front(); E; E = E->next()) {
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E->get()->_owner = nullptr; //bye, you are no longer owned cause I died
ClassRefWithName subclass;
subclass.id = E->get()->get_instance_id();
subclass.fully_qualified_name = E->get()->fully_qualified_name;
weak_subclasses.push_back(subclass);
}
// clear subclasses to allow unused subclasses to be deleted
subclasses.clear();
// subclasses are also held by constants, clear those as well
constants.clear();
// keep orphan subclass only for subclasses that are still in use
for (int i = 0; i < weak_subclasses.size(); i++) {
ClassRefWithName subclass = weak_subclasses[i];
Object *obj = ObjectDB::get_instance(subclass.id);
if (!obj) {
continue;
}
// subclass is not released
GDScriptLanguage::get_singleton()->add_orphan_subclass(subclass.fully_qualified_name, subclass.id);
}
}
void GDScript::_init_rpc_methods_properties() {
// Copy the base rpc methods so we don't mask their IDs.
rpc_functions.clear();
if (base.is_valid()) {
rpc_functions = base->rpc_functions;
}
GDScript *cscript = this;
Map<StringName, Ref<GDScript>>::Element *sub_E = subclasses.front();
while (cscript) {
// RPC Methods
for (Map<StringName, GDScriptFunction *>::Element *E = cscript->member_functions.front(); E; E = E->next()) {
if (E->get()->get_rpc_mode() != MultiplayerAPI::RPC_MODE_DISABLED) {
MultiplayerAPI::RPCConfig nd;
nd.name = E->key();
nd.rpc_mode = E->get()->get_rpc_mode();
// TODO
nd.transfer_mode = MultiplayerPeer::TRANSFER_MODE_RELIABLE;
nd.channel = 0;
if (-1 == rpc_functions.find(nd)) {
rpc_functions.push_back(nd);
}
}
}
if (cscript != this) {
sub_E = sub_E->next();
}
if (sub_E) {
cscript = sub_E->get().ptr();
} else {
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cscript = nullptr;
}
}
// Sort so we are 100% that they are always the same.
rpc_functions.sort_custom<MultiplayerAPI::SortRPCConfig>();
}
GDScript::~GDScript() {
{
MutexLock lock(GDScriptLanguage::get_singleton()->lock);
while (SelfList<GDScriptFunctionState> *E = pending_func_states.first()) {
// Order matters since clearing the stack may already cause
// the GDSCriptFunctionState to be destroyed and thus removed from the list.
pending_func_states.remove(E);
E->self()->_clear_stack();
}
}
for (Map<StringName, GDScriptFunction *>::Element *E = member_functions.front(); E; E = E->next()) {
memdelete(E->get());
}
if (GDScriptCache::singleton) { // Cache may have been already destroyed at engine shutdown.
GDScriptCache::remove_script(get_path());
}
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_save_orphaned_subclasses();
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#ifdef TOOLS_ENABLED
// Clearing inner class doc, script doc only cleared when the script source deleted.
if (_owner) {
_clear_doc();
}
#endif
#ifdef DEBUG_ENABLED
{
MutexLock lock(GDScriptLanguage::get_singleton()->lock);
GDScriptLanguage::get_singleton()->script_list.remove(&script_list);
}
#endif
}
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//////////////////////////////
// INSTANCE //
//////////////////////////////
bool GDScriptInstance::set(const StringName &p_name, const Variant &p_value) {
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//member
{
const Map<StringName, GDScript::MemberInfo>::Element *E = script->member_indices.find(p_name);
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if (E) {
const GDScript::MemberInfo *member = &E->get();
if (member->setter) {
const Variant *val = &p_value;
Callable::CallError err;
call(member->setter, &val, 1, err);
if (err.error == Callable::CallError::CALL_OK) {
return true; //function exists, call was successful
}
} else {
if (member->data_type.has_type) {
if (member->data_type.builtin_type == Variant::ARRAY && member->data_type.has_container_element_type()) {
// Typed array.
if (p_value.get_type() == Variant::ARRAY) {
return VariantInternal::get_array(&members.write[member->index])->typed_assign(p_value);
} else {
return false;
}
} else if (!member->data_type.is_type(p_value)) {
// Try conversion
Callable::CallError ce;
const Variant *value = &p_value;
Variant converted;
Variant::construct(member->data_type.builtin_type, converted, &value, 1, ce);
if (ce.error == Callable::CallError::CALL_OK) {
members.write[member->index] = converted;
return true;
} else {
return false;
}
}
}
members.write[member->index] = p_value;
}
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return true;
}
}
GDScript *sptr = script.ptr();
while (sptr) {
Map<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(GDScriptLanguage::get_singleton()->strings._set);
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if (E) {
Variant name = p_name;
const Variant *args[2] = { &name, &p_value };
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Callable::CallError err;
Variant ret = E->get()->call(this, (const Variant **)args, 2, err);
if (err.error == Callable::CallError::CALL_OK && ret.get_type() == Variant::BOOL && ret.operator bool()) {
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return true;
}
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}
sptr = sptr->_base;
}
return false;
}
bool GDScriptInstance::get(const StringName &p_name, Variant &r_ret) const {
const GDScript *sptr = script.ptr();
while (sptr) {
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{
const Map<StringName, GDScript::MemberInfo>::Element *E = script->member_indices.find(p_name);
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if (E) {
if (E->get().getter) {
Callable::CallError err;
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r_ret = const_cast<GDScriptInstance *>(this)->call(E->get().getter, nullptr, 0, err);
if (err.error == Callable::CallError::CALL_OK) {
return true;
}
}
r_ret = members[E->get().index];
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return true; //index found
}
}
{
const GDScript *sl = sptr;
while (sl) {
const Map<StringName, Variant>::Element *E = sl->constants.find(p_name);
if (E) {
r_ret = E->get();
return true; //index found
}
sl = sl->_base;
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}
}
{
// Signals.
const GDScript *sl = sptr;
while (sl) {
const Map<StringName, Vector<StringName>>::Element *E = sl->_signals.find(p_name);
if (E) {
r_ret = Signal(this->owner, E->key());
return true; //index found
}
sl = sl->_base;
}
}
{
// Methods.
const GDScript *sl = sptr;
while (sl) {
const Map<StringName, GDScriptFunction *>::Element *E = sl->member_functions.find(p_name);
if (E) {
r_ret = Callable(this->owner, E->key());
return true; //index found
}
sl = sl->_base;
}
}
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{
const Map<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(GDScriptLanguage::get_singleton()->strings._get);
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if (E) {
Variant name = p_name;
const Variant *args[1] = { &name };
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Callable::CallError err;
Variant ret = const_cast<GDScriptFunction *>(E->get())->call(const_cast<GDScriptInstance *>(this), (const Variant **)args, 1, err);
if (err.error == Callable::CallError::CALL_OK && ret.get_type() != Variant::NIL) {
r_ret = ret;
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return true;
}
}
}
sptr = sptr->_base;
}
return false;
}
Variant::Type GDScriptInstance::get_property_type(const StringName &p_name, bool *r_is_valid) const {
const GDScript *sptr = script.ptr();
while (sptr) {
if (sptr->member_info.has(p_name)) {
if (r_is_valid) {
*r_is_valid = true;
}
return sptr->member_info[p_name].type;
}
sptr = sptr->_base;
}
if (r_is_valid) {
*r_is_valid = false;
}
return Variant::NIL;
}
void GDScriptInstance::get_property_list(List<PropertyInfo> *p_properties) const {
// exported members, not done yet!
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const GDScript *sptr = script.ptr();
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List<PropertyInfo> props;
while (sptr) {
const Map<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(GDScriptLanguage::get_singleton()->strings._get_property_list);
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if (E) {
Callable::CallError err;
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Variant ret = const_cast<GDScriptFunction *>(E->get())->call(const_cast<GDScriptInstance *>(this), nullptr, 0, err);
if (err.error == Callable::CallError::CALL_OK) {
ERR_FAIL_COND_MSG(ret.get_type() != Variant::ARRAY, "Wrong type for _get_property_list, must be an array of dictionaries.");
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Array arr = ret;
for (int i = 0; i < arr.size(); i++) {
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Dictionary d = arr[i];
ERR_CONTINUE(!d.has("name"));
ERR_CONTINUE(!d.has("type"));
PropertyInfo pinfo;
pinfo.type = Variant::Type(d["type"].operator int());
ERR_CONTINUE(pinfo.type < 0 || pinfo.type >= Variant::VARIANT_MAX);
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pinfo.name = d["name"];
ERR_CONTINUE(pinfo.name == "");
if (d.has("hint")) {
pinfo.hint = PropertyHint(d["hint"].operator int());
}
if (d.has("hint_string")) {
pinfo.hint_string = d["hint_string"];
}
if (d.has("usage")) {
pinfo.usage = d["usage"];
}
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props.push_back(pinfo);
}
}
}
//instance a fake script for editing the values
Vector<_GDScriptMemberSort> msort;
for (Map<StringName, PropertyInfo>::Element *F = sptr->member_info.front(); F; F = F->next()) {
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_GDScriptMemberSort ms;
ERR_CONTINUE(!sptr->member_indices.has(F->key()));
ms.index = sptr->member_indices[F->key()].index;
ms.name = F->key();
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msort.push_back(ms);
}
msort.sort();
msort.reverse();
for (int i = 0; i < msort.size(); i++) {
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props.push_front(sptr->member_info[msort[i].name]);
}
sptr = sptr->_base;
}
for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
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p_properties->push_back(E->get());
}
}
void GDScriptInstance::get_method_list(List<MethodInfo> *p_list) const {
const GDScript *sptr = script.ptr();
while (sptr) {
for (Map<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.front(); E; E = E->next()) {
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MethodInfo mi;
mi.name = E->key();
mi.flags |= METHOD_FLAG_FROM_SCRIPT;
for (int i = 0; i < E->get()->get_argument_count(); i++) {
mi.arguments.push_back(PropertyInfo(Variant::NIL, "arg" + itos(i)));
}
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p_list->push_back(mi);
}
sptr = sptr->_base;
}
}
bool GDScriptInstance::has_method(const StringName &p_method) const {
const GDScript *sptr = script.ptr();
while (sptr) {
const Map<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(p_method);
if (E) {
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return true;
}
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sptr = sptr->_base;
}
return false;
}
Variant GDScriptInstance::call(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
GDScript *sptr = script.ptr();
while (sptr) {
Map<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(p_method);
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if (E) {
return E->get()->call(this, p_args, p_argcount, r_error);
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}
sptr = sptr->_base;
}
r_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD;
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return Variant();
}
void GDScriptInstance::notification(int p_notification) {
//notification is not virtual, it gets called at ALL levels just like in C.
Variant value = p_notification;
const Variant *args[1] = { &value };
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GDScript *sptr = script.ptr();
while (sptr) {
Map<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(GDScriptLanguage::get_singleton()->strings._notification);
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if (E) {
Callable::CallError err;
E->get()->call(this, args, 1, err);
if (err.error != Callable::CallError::CALL_OK) {
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//print error about notification call
}
}
sptr = sptr->_base;
}
}
String GDScriptInstance::to_string(bool *r_valid) {
if (has_method(CoreStringNames::get_singleton()->_to_string)) {
Callable::CallError ce;
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Variant ret = call(CoreStringNames::get_singleton()->_to_string, nullptr, 0, ce);
if (ce.error == Callable::CallError::CALL_OK) {
if (ret.get_type() != Variant::STRING) {
if (r_valid) {
*r_valid = false;
}
ERR_FAIL_V_MSG(String(), "Wrong type for " + CoreStringNames::get_singleton()->_to_string + ", must be a String.");
}
if (r_valid) {
*r_valid = true;
}
return ret.operator String();
}
}
if (r_valid) {
*r_valid = false;
}
return String();
}
Ref<Script> GDScriptInstance::get_script() const {
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return script;
}
ScriptLanguage *GDScriptInstance::get_language() {
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return GDScriptLanguage::get_singleton();
}
const Vector<MultiplayerAPI::RPCConfig> GDScriptInstance::get_rpc_methods() const {
return script->get_rpc_methods();
}
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void GDScriptInstance::reload_members() {
#ifdef DEBUG_ENABLED
members.resize(script->member_indices.size()); //resize
Vector<Variant> new_members;
new_members.resize(script->member_indices.size());
//pass the values to the new indices
for (Map<StringName, GDScript::MemberInfo>::Element *E = script->member_indices.front(); E; E = E->next()) {
if (member_indices_cache.has(E->key())) {
Variant value = members[member_indices_cache[E->key()]];
new_members.write[E->get().index] = value;
}
}
//apply
members = new_members;
//pass the values to the new indices
member_indices_cache.clear();
for (Map<StringName, GDScript::MemberInfo>::Element *E = script->member_indices.front(); E; E = E->next()) {
member_indices_cache[E->key()] = E->get().index;
}
#endif
}
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GDScriptInstance::GDScriptInstance() {
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owner = nullptr;
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base_ref_counted = false;
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}
GDScriptInstance::~GDScriptInstance() {
MutexLock lock(GDScriptLanguage::get_singleton()->lock);
while (SelfList<GDScriptFunctionState> *E = pending_func_states.first()) {
// Order matters since clearing the stack may already cause
// the GDSCriptFunctionState to be destroyed and thus removed from the list.
pending_func_states.remove(E);
E->self()->_clear_stack();
}
if (script.is_valid() && owner) {
script->instances.erase(owner);
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}
}
/************* SCRIPT LANGUAGE **************/
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GDScriptLanguage *GDScriptLanguage::singleton = nullptr;
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String GDScriptLanguage::get_name() const {
return "GDScript";
}
/* LANGUAGE FUNCTIONS */
void GDScriptLanguage::_add_global(const StringName &p_name, const Variant &p_value) {
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if (globals.has(p_name)) {
//overwrite existing
global_array.write[globals[p_name]] = p_value;
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return;
}
globals[p_name] = global_array.size();
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global_array.push_back(p_value);
_global_array = global_array.ptrw();
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}
void GDScriptLanguage::add_global_constant(const StringName &p_variable, const Variant &p_value) {
_add_global(p_variable, p_value);
}
void GDScriptLanguage::add_named_global_constant(const StringName &p_name, const Variant &p_value) {
named_globals[p_name] = p_value;
}
void GDScriptLanguage::remove_named_global_constant(const StringName &p_name) {
ERR_FAIL_COND(!named_globals.has(p_name));
named_globals.erase(p_name);
}
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void GDScriptLanguage::init() {
//populate global constants
int gcc = CoreConstants::get_global_constant_count();
for (int i = 0; i < gcc; i++) {
_add_global(StaticCString::create(CoreConstants::get_global_constant_name(i)), CoreConstants::get_global_constant_value(i));
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}
_add_global(StaticCString::create("PI"), Math_PI);
_add_global(StaticCString::create("TAU"), Math_TAU);
_add_global(StaticCString::create("INF"), Math_INF);
_add_global(StaticCString::create("NAN"), Math_NAN);
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//populate native classes
List<StringName> class_list;
ClassDB::get_class_list(&class_list);
for (List<StringName>::Element *E = class_list.front(); E; E = E->next()) {
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StringName n = E->get();
String s = String(n);
if (s.begins_with("_")) {
n = s.substr(1, s.length());
}
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if (globals.has(n)) {
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continue;
}
Ref<GDScriptNativeClass> nc = memnew(GDScriptNativeClass(E->get()));
_add_global(n, nc);
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}
//populate singletons
List<Engine::Singleton> singletons;
Engine::get_singleton()->get_singletons(&singletons);
for (List<Engine::Singleton>::Element *E = singletons.front(); E; E = E->next()) {
_add_global(E->get().name, E->get().ptr);
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}
#ifdef TESTS_ENABLED
GDScriptTests::GDScriptTestRunner::handle_cmdline();
#endif
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}
String GDScriptLanguage::get_type() const {
return "GDScript";
}
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String GDScriptLanguage::get_extension() const {
return "gd";
}
Error GDScriptLanguage::execute_file(const String &p_path) {
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// ??
return OK;
}
void GDScriptLanguage::finish() {
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}
void GDScriptLanguage::profiling_start() {
#ifdef DEBUG_ENABLED
MutexLock lock(this->lock);
SelfList<GDScriptFunction> *elem = function_list.first();
while (elem) {
elem->self()->profile.call_count = 0;
elem->self()->profile.self_time = 0;
elem->self()->profile.total_time = 0;
elem->self()->profile.frame_call_count = 0;
elem->self()->profile.frame_self_time = 0;
elem->self()->profile.frame_total_time = 0;
elem->self()->profile.last_frame_call_count = 0;
elem->self()->profile.last_frame_self_time = 0;
elem->self()->profile.last_frame_total_time = 0;
elem = elem->next();
}
profiling = true;
#endif
}
void GDScriptLanguage::profiling_stop() {
#ifdef DEBUG_ENABLED
MutexLock lock(this->lock);
profiling = false;
#endif
}
int GDScriptLanguage::profiling_get_accumulated_data(ProfilingInfo *p_info_arr, int p_info_max) {
int current = 0;
#ifdef DEBUG_ENABLED
MutexLock lock(this->lock);
SelfList<GDScriptFunction> *elem = function_list.first();
while (elem) {
if (current >= p_info_max) {
break;
}
p_info_arr[current].call_count = elem->self()->profile.call_count;
p_info_arr[current].self_time = elem->self()->profile.self_time;
p_info_arr[current].total_time = elem->self()->profile.total_time;
p_info_arr[current].signature = elem->self()->profile.signature;
elem = elem->next();
current++;
}
#endif
return current;
}
int GDScriptLanguage::profiling_get_frame_data(ProfilingInfo *p_info_arr, int p_info_max) {
int current = 0;
#ifdef DEBUG_ENABLED
MutexLock lock(this->lock);
SelfList<GDScriptFunction> *elem = function_list.first();
while (elem) {
if (current >= p_info_max) {
break;
}
if (elem->self()->profile.last_frame_call_count > 0) {
p_info_arr[current].call_count = elem->self()->profile.last_frame_call_count;
p_info_arr[current].self_time = elem->self()->profile.last_frame_self_time;
p_info_arr[current].total_time = elem->self()->profile.last_frame_total_time;
p_info_arr[current].signature = elem->self()->profile.signature;
current++;
}
elem = elem->next();
}
#endif
return current;
}
struct GDScriptDepSort {
//must support sorting so inheritance works properly (parent must be reloaded first)
bool operator()(const Ref<GDScript> &A, const Ref<GDScript> &B) const {
if (A == B) {
return false; //shouldn't happen but..
}
const GDScript *I = B->get_base().ptr();
while (I) {
if (I == A.ptr()) {
// A is a base of B
return true;
}
I = I->get_base().ptr();
}
return false; //not a base
}
};
void GDScriptLanguage::reload_all_scripts() {
#ifdef DEBUG_ENABLED
print_verbose("GDScript: Reloading all scripts");
List<Ref<GDScript>> scripts;
{
MutexLock lock(this->lock);
SelfList<GDScript> *elem = script_list.first();
while (elem) {
if (elem->self()->get_path().is_resource_file()) {
print_verbose("GDScript: Found: " + elem->self()->get_path());
scripts.push_back(Ref<GDScript>(elem->self())); //cast to gdscript to avoid being erased by accident
}
elem = elem->next();
}
}
//as scripts are going to be reloaded, must proceed without locking here
scripts.sort_custom<GDScriptDepSort>(); //update in inheritance dependency order
for (List<Ref<GDScript>>::Element *E = scripts.front(); E; E = E->next()) {
print_verbose("GDScript: Reloading: " + E->get()->get_path());
E->get()->load_source_code(E->get()->get_path());
E->get()->reload(true);
}
#endif
}
void GDScriptLanguage::reload_tool_script(const Ref<Script> &p_script, bool p_soft_reload) {
#ifdef DEBUG_ENABLED
List<Ref<GDScript>> scripts;
{
MutexLock lock(this->lock);
SelfList<GDScript> *elem = script_list.first();
while (elem) {
if (elem->self()->get_path().is_resource_file()) {
scripts.push_back(Ref<GDScript>(elem->self())); //cast to gdscript to avoid being erased by accident
}
elem = elem->next();
}
}
//when someone asks you why dynamically typed languages are easier to write....
Map<Ref<GDScript>, Map<ObjectID, List<Pair<StringName, Variant>>>> to_reload;
//as scripts are going to be reloaded, must proceed without locking here
scripts.sort_custom<GDScriptDepSort>(); //update in inheritance dependency order
for (List<Ref<GDScript>>::Element *E = scripts.front(); E; E = E->next()) {
bool reload = E->get() == p_script || to_reload.has(E->get()->get_base());
if (!reload) {
continue;
}
to_reload.insert(E->get(), Map<ObjectID, List<Pair<StringName, Variant>>>());
if (!p_soft_reload) {
//save state and remove script from instances
Map<ObjectID, List<Pair<StringName, Variant>>> &map = to_reload[E->get()];
while (E->get()->instances.front()) {
Object *obj = E->get()->instances.front()->get();
//save instance info
List<Pair<StringName, Variant>> state;
if (obj->get_script_instance()) {
obj->get_script_instance()->get_property_state(state);
map[obj->get_instance_id()] = state;
obj->set_script(Variant());
}
}
//same thing for placeholders
#ifdef TOOLS_ENABLED
while (E->get()->placeholders.size()) {
Object *obj = E->get()->placeholders.front()->get()->get_owner();
//save instance info
if (obj->get_script_instance()) {
map.insert(obj->get_instance_id(), List<Pair<StringName, Variant>>());
List<Pair<StringName, Variant>> &state = map[obj->get_instance_id()];
obj->get_script_instance()->get_property_state(state);
obj->set_script(Variant());
} else {
// no instance found. Let's remove it so we don't loop forever
E->get()->placeholders.erase(E->get()->placeholders.front()->get());
}
}
#endif
for (Map<ObjectID, List<Pair<StringName, Variant>>>::Element *F = E->get()->pending_reload_state.front(); F; F = F->next()) {
map[F->key()] = F->get(); //pending to reload, use this one instead
}
}
}
for (Map<Ref<GDScript>, Map<ObjectID, List<Pair<StringName, Variant>>>>::Element *E = to_reload.front(); E; E = E->next()) {
Ref<GDScript> scr = E->key();
scr->reload(p_soft_reload);
//restore state if saved
for (Map<ObjectID, List<Pair<StringName, Variant>>>::Element *F = E->get().front(); F; F = F->next()) {
List<Pair<StringName, Variant>> &saved_state = F->get();
Object *obj = ObjectDB::get_instance(F->key());
if (!obj) {
continue;
}
if (!p_soft_reload) {
//clear it just in case (may be a pending reload state)
obj->set_script(Variant());
}
obj->set_script(scr);
ScriptInstance *script_instance = obj->get_script_instance();
if (!script_instance) {
//failed, save reload state for next time if not saved
if (!scr->pending_reload_state.has(obj->get_instance_id())) {
scr->pending_reload_state[obj->get_instance_id()] = saved_state;
}
continue;
}
if (script_instance->is_placeholder() && scr->is_placeholder_fallback_enabled()) {
PlaceHolderScriptInstance *placeholder = static_cast<PlaceHolderScriptInstance *>(script_instance);
for (List<Pair<StringName, Variant>>::Element *G = saved_state.front(); G; G = G->next()) {
placeholder->property_set_fallback(G->get().first, G->get().second);
}
} else {
for (List<Pair<StringName, Variant>>::Element *G = saved_state.front(); G; G = G->next()) {
script_instance->set(G->get().first, G->get().second);
}
}
scr->pending_reload_state.erase(obj->get_instance_id()); //as it reloaded, remove pending state
}
//if instance states were saved, set them!
}
#endif
}
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void GDScriptLanguage::frame() {
calls = 0;
#ifdef DEBUG_ENABLED
if (profiling) {
MutexLock lock(this->lock);
SelfList<GDScriptFunction> *elem = function_list.first();
while (elem) {
elem->self()->profile.last_frame_call_count = elem->self()->profile.frame_call_count;
elem->self()->profile.last_frame_self_time = elem->self()->profile.frame_self_time;
elem->self()->profile.last_frame_total_time = elem->self()->profile.frame_total_time;
elem->self()->profile.frame_call_count = 0;
elem->self()->profile.frame_self_time = 0;
elem->self()->profile.frame_total_time = 0;
elem = elem->next();
}
}
#endif
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}
/* EDITOR FUNCTIONS */
void GDScriptLanguage::get_reserved_words(List<String> *p_words) const {
// TODO: Add annotations here?
static const char *_reserved_words[] = {
// operators
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"and",
"in",
"not",
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"or",
// types and values
"false",
"float",
"int",
"bool",
"null",
"PI",
"TAU",
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"INF",
"NAN",
"self",
"true",
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"void",
// functions
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"as",
"assert",
"await",
"breakpoint",
"class",
"class_name",
"extends",
"is",
"func",
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"preload",
"signal",
"super",
"trait",
"yield",
// var
"const",
"enum",
"static",
"var",
// control flow
"break",
"continue",
"if",
"elif",
"else",
"for",
"pass",
"return",
"match",
"while",
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nullptr
};
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const char **w = _reserved_words;
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while (*w) {
p_words->push_back(*w);
w++;
}
List<StringName> functions;
GDScriptUtilityFunctions::get_function_list(&functions);
for (const List<StringName>::Element *E = functions.front(); E; E = E->next()) {
p_words->push_back(String(E->get()));
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}
}
bool GDScriptLanguage::is_control_flow_keyword(String p_keyword) const {
return p_keyword == "break" ||
p_keyword == "continue" ||
p_keyword == "elif" ||
p_keyword == "else" ||
p_keyword == "if" ||
p_keyword == "for" ||
p_keyword == "match" ||
p_keyword == "pass" ||
p_keyword == "return" ||
p_keyword == "while";
}
bool GDScriptLanguage::handles_global_class_type(const String &p_type) const {
return p_type == "GDScript";
}
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String GDScriptLanguage::get_global_class_name(const String &p_path, String *r_base_type, String *r_icon_path) const {
Vector<uint8_t> sourcef;
Error err;
FileAccessRef f = FileAccess::open(p_path, FileAccess::READ, &err);
if (err) {
return String();
}
String source = f->get_as_utf8_string();
GDScriptParser parser;
err = parser.parse(source, p_path, false);
// TODO: Simplify this code by using the analyzer to get full inheritance.
if (err == OK) {
const GDScriptParser::ClassNode *c = parser.get_tree();
if (r_icon_path) {
if (c->icon_path.is_empty() || c->icon_path.is_absolute_path()) {
*r_icon_path = c->icon_path;
} else if (c->icon_path.is_rel_path()) {
*r_icon_path = p_path.get_base_dir().plus_file(c->icon_path).simplify_path();
}
}
if (r_base_type) {
const GDScriptParser::ClassNode *subclass = c;
String path = p_path;
GDScriptParser subparser;
while (subclass) {
if (subclass->extends_used) {
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if (!subclass->extends_path.is_empty()) {
if (subclass->extends.size() == 0) {
get_global_class_name(subclass->extends_path, r_base_type);
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subclass = nullptr;
break;
} else {
Vector<StringName> extend_classes = subclass->extends;
FileAccessRef subfile = FileAccess::open(subclass->extends_path, FileAccess::READ);
if (!subfile) {
break;
}
String subsource = subfile->get_as_utf8_string();
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if (subsource.is_empty()) {
break;
}
String subpath = subclass->extends_path;
if (subpath.is_rel_path()) {
subpath = path.get_base_dir().plus_file(subpath).simplify_path();
}
if (OK != subparser.parse(subsource, subpath, false)) {
break;
}
path = subpath;
subclass = subparser.get_tree();
while (extend_classes.size() > 0) {
bool found = false;
for (int i = 0; i < subclass->members.size(); i++) {
if (subclass->members[i].type != GDScriptParser::ClassNode::Member::CLASS) {
continue;
}
const GDScriptParser::ClassNode *inner_class = subclass->members[i].m_class;
if (inner_class->identifier->name == extend_classes[0]) {
extend_classes.remove(0);
found = true;
subclass = inner_class;
break;
}
}
if (!found) {
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subclass = nullptr;
break;
}
}
}
} else if (subclass->extends.size() == 1) {
*r_base_type = subclass->extends[0];
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subclass = nullptr;
} else {
break;
}
} else {
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*r_base_type = "RefCounted";
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subclass = nullptr;
}
}
}
return c->identifier != nullptr ? String(c->identifier->name) : String();
}
return String();
}
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GDScriptLanguage::GDScriptLanguage() {
calls = 0;
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ERR_FAIL_COND(singleton);
singleton = this;
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strings._init = StaticCString::create("_init");
strings._notification = StaticCString::create("_notification");
strings._set = StaticCString::create("_set");
strings._get = StaticCString::create("_get");
strings._get_property_list = StaticCString::create("_get_property_list");
strings._script_source = StaticCString::create("script/source");
_debug_parse_err_line = -1;
_debug_parse_err_file = "";
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profiling = false;
script_frame_time = 0;
_debug_call_stack_pos = 0;
int dmcs = GLOBAL_DEF("debug/settings/gdscript/max_call_stack", 1024);
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ProjectSettings::get_singleton()->set_custom_property_info("debug/settings/gdscript/max_call_stack", PropertyInfo(Variant::INT, "debug/settings/gdscript/max_call_stack", PROPERTY_HINT_RANGE, "1024,4096,1,or_greater")); //minimum is 1024
if (EngineDebugger::is_active()) {
//debugging enabled!
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_debug_max_call_stack = dmcs;
_call_stack = memnew_arr(CallLevel, _debug_max_call_stack + 1);
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} else {
_debug_max_call_stack = 0;
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_call_stack = nullptr;
}
#ifdef DEBUG_ENABLED
GLOBAL_DEF("debug/gdscript/warnings/enable", true);
GLOBAL_DEF("debug/gdscript/warnings/treat_warnings_as_errors", false);
GLOBAL_DEF("debug/gdscript/warnings/exclude_addons", true);
GLOBAL_DEF("debug/gdscript/completion/autocomplete_setters_and_getters", false);
for (int i = 0; i < (int)GDScriptWarning::WARNING_MAX; i++) {
String warning = GDScriptWarning::get_name_from_code((GDScriptWarning::Code)i).to_lower();
bool default_enabled = !warning.begins_with("unsafe_");
GLOBAL_DEF("debug/gdscript/warnings/" + warning, default_enabled);
}
#endif // DEBUG_ENABLED
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}
GDScriptLanguage::~GDScriptLanguage() {
if (_call_stack) {
memdelete_arr(_call_stack);
}
// Clear dependencies between scripts, to ensure cyclic references are broken (to avoid leaks at exit).
SelfList<GDScript> *s = script_list.first();
while (s) {
GDScript *script = s->self();
// This ensures the current script is not released before we can check what's the next one
// in the list (we can't get the next upfront because we don't know if the reference breaking
// will cause it -or any other after it, for that matter- to be released so the next one
// is not the same as before).
script->reference();
for (Map<StringName, GDScriptFunction *>::Element *E = script->member_functions.front(); E; E = E->next()) {
GDScriptFunction *func = E->get();
for (int i = 0; i < func->argument_types.size(); i++) {
func->argument_types.write[i].script_type_ref = Ref<Script>();
}
func->return_type.script_type_ref = Ref<Script>();
}
for (Map<StringName, GDScript::MemberInfo>::Element *E = script->member_indices.front(); E; E = E->next()) {
E->get().data_type.script_type_ref = Ref<Script>();
}
s = s->next();
script->unreference();
}
singleton = nullptr;
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}
void GDScriptLanguage::add_orphan_subclass(const String &p_qualified_name, const ObjectID &p_subclass) {
orphan_subclasses[p_qualified_name] = p_subclass;
}
Ref<GDScript> GDScriptLanguage::get_orphan_subclass(const String &p_qualified_name) {
Map<String, ObjectID>::Element *orphan_subclass_element = orphan_subclasses.find(p_qualified_name);
if (!orphan_subclass_element) {
return Ref<GDScript>();
}
ObjectID orphan_subclass = orphan_subclass_element->get();
Object *obj = ObjectDB::get_instance(orphan_subclass);
orphan_subclasses.erase(orphan_subclass_element);
if (!obj) {
return Ref<GDScript>();
}
return Ref<GDScript>(Object::cast_to<GDScript>(obj));
}
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/*************** RESOURCE ***************/
RES ResourceFormatLoaderGDScript::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode) {
if (r_error) {
*r_error = ERR_FILE_CANT_OPEN;
}
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Error err;
Ref<GDScript> script = GDScriptCache::get_full_script(p_path, err);
// TODO: Reintroduce binary and encrypted scripts.
if (script.is_null()) {
// Don't fail loading because of parsing error.
script.instantiate();
}
if (r_error) {
*r_error = OK;
}
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return script;
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}
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void ResourceFormatLoaderGDScript::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("gd");
// TODO: Reintroduce binary and encrypted scripts.
// p_extensions->push_back("gdc");
// p_extensions->push_back("gde");
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}
bool ResourceFormatLoaderGDScript::handles_type(const String &p_type) const {
return (p_type == "Script" || p_type == "GDScript");
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}
String ResourceFormatLoaderGDScript::get_resource_type(const String &p_path) const {
String el = p_path.get_extension().to_lower();
// TODO: Reintroduce binary and encrypted scripts.
if (el == "gd" /*|| el == "gdc" || el == "gde"*/) {
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return "GDScript";
}
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return "";
}
void ResourceFormatLoaderGDScript::get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types) {
FileAccessRef file = FileAccess::open(p_path, FileAccess::READ);
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ERR_FAIL_COND_MSG(!file, "Cannot open file '" + p_path + "'.");
String source = file->get_as_utf8_string();
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if (source.is_empty()) {
return;
}
GDScriptParser parser;
if (OK != parser.parse(source, p_path, false)) {
return;
}
for (const List<String>::Element *E = parser.get_dependencies().front(); E; E = E->next()) {
p_dependencies->push_back(E->get());
}
}
Error ResourceFormatSaverGDScript::save(const String &p_path, const RES &p_resource, uint32_t p_flags) {
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Ref<GDScript> sqscr = p_resource;
ERR_FAIL_COND_V(sqscr.is_null(), ERR_INVALID_PARAMETER);
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String source = sqscr->get_source_code();
Error err;
FileAccess *file = FileAccess::open(p_path, FileAccess::WRITE, &err);
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ERR_FAIL_COND_V_MSG(err, err, "Cannot save GDScript file '" + p_path + "'.");
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file->store_string(source);
if (file->get_error() != OK && file->get_error() != ERR_FILE_EOF) {
memdelete(file);
return ERR_CANT_CREATE;
}
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file->close();
memdelete(file);
if (ScriptServer::is_reload_scripts_on_save_enabled()) {
GDScriptLanguage::get_singleton()->reload_tool_script(p_resource, false);
}
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return OK;
}
void ResourceFormatSaverGDScript::get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const {
if (Object::cast_to<GDScript>(*p_resource)) {
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p_extensions->push_back("gd");
}
}
bool ResourceFormatSaverGDScript::recognize(const RES &p_resource) const {
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return Object::cast_to<GDScript>(*p_resource) != nullptr;
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}