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pandemonium_engine_minimal/modules/gdscript/gdscript.cpp
Relintai 69853a3f68 More cleanups.
2023-12-17 20:11:13 +01:00

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/* gdscript.cpp */
#include "gdscript.h"
#include "core/config/engine.h"
#include "core/config/project_settings.h"
#include "core/core_string_names.h"
#include "core/global_constants.h"
#include "core/os/file_access.h"
#include "core/os/os.h"
#include "gdscript_compiler.h"
///////////////////////////
GDScriptNativeClass::GDScriptNativeClass(const StringName &p_name) {
name = p_name;
}
bool GDScriptNativeClass::_get(const StringName &p_name, Variant &r_ret) const {
bool ok;
int v = ClassDB::get_integer_constant(name, p_name, &ok);
if (ok) {
r_ret = v;
return true;
} else {
return false;
}
}
void GDScriptNativeClass::_bind_methods() {
ClassDB::bind_method(D_METHOD("new"), &GDScriptNativeClass::_new);
}
Variant GDScriptNativeClass::_new() {
Object *o = instance();
ERR_FAIL_COND_V_MSG(!o, Variant(), "Class type: '" + String(name) + "' is not instantiable.");
Reference *ref = Object::cast_to<Reference>(o);
if (ref) {
return REF(ref);
} else {
return o;
}
}
Object *GDScriptNativeClass::instance() {
return ClassDB::instance(name);
}
void GDScript::_clear_pending_func_states() {
GDScriptLanguage::get_singleton()->lock.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();
}
GDScriptLanguage::get_singleton()->lock.unlock();
}
GDScriptInstance *GDScript::_create_instance(const Variant **p_args, int p_argcount, Object *p_owner, bool p_isref, Variant::CallError &r_error) {
/* STEP 1, CREATE */
GDScriptInstance *instance = memnew(GDScriptInstance);
instance->base_ref = p_isref;
instance->members.resize(member_indices.size());
instance->script = Ref<GDScript>(this);
instance->owner = p_owner;
#ifdef DEBUG_ENABLED
//needed for hot reloading
for (RBMap<StringName, MemberInfo>::Element *E = member_indices.front(); E; E = E->next()) {
instance->member_indices_cache[E->key()] = E->get().index;
}
#endif
instance->owner->set_script_instance(instance);
/* STEP 2, INITIALIZE AND CONSTRUCT */
GDScriptLanguage::singleton->lock.lock();
instances.insert(instance->owner);
GDScriptLanguage::singleton->lock.unlock();
initializer->call(instance, p_args, p_argcount, r_error);
if (r_error.error != Variant::CallError::CALL_OK) {
instance->script = Ref<GDScript>();
instance->owner->set_script_instance(nullptr);
#ifndef NO_THREADS
GDScriptLanguage::singleton->lock.lock();
#endif
instances.erase(p_owner);
#ifndef NO_THREADS
GDScriptLanguage::singleton->lock.unlock();
#endif
ERR_FAIL_COND_V(r_error.error != Variant::CallError::CALL_OK, nullptr); //error constructing
}
//@TODO make thread safe
return instance;
}
Variant GDScript::_new(const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
/* STEP 1, CREATE */
if (!valid) {
r_error.error = Variant::CallError::CALL_ERROR_INVALID_METHOD;
return Variant();
}
r_error.error = Variant::CallError::CALL_OK;
REF ref;
Object *owner = nullptr;
GDScript *_baseptr = this;
while (_baseptr->_base) {
_baseptr = _baseptr->_base;
}
ERR_FAIL_COND_V(_baseptr->native.is_null(), Variant());
if (_baseptr->native.ptr()) {
owner = _baseptr->native->instance();
} else {
owner = memnew(Reference); //by default, no base means use reference
}
ERR_FAIL_COND_V_MSG(!owner, Variant(), "Can't inherit from a virtual class.");
Reference *r = Object::cast_to<Reference>(owner);
if (r) {
ref = REF(r);
}
GDScriptInstance *instance = _create_instance(p_args, p_argcount, owner, r != nullptr, r_error);
if (!instance) {
if (ref.is_null()) {
memdelete(owner); //no owner, sorry
}
return Variant();
}
if (ref.is_valid()) {
return ref;
} else {
return owner;
}
}
bool GDScript::can_instance() const {
#ifdef TOOLS_ENABLED
return valid && (tool || ScriptServer::is_scripting_enabled());
#else
return valid;
#endif
}
Ref<Script> GDScript::get_base_script() const {
if (_base) {
return Ref<GDScript>(_base);
} else {
return Ref<Script>();
}
}
StringName GDScript::get_instance_base_type() const {
if (native.is_valid()) {
return native->get_name();
}
if (base.is_valid() && base->is_valid()) {
return base->get_instance_base_type();
}
return StringName();
}
struct _GDScriptMemberSort {
int index;
StringName name;
_FORCE_INLINE_ bool operator<(const _GDScriptMemberSort &p_member) const { return index < p_member.index; }
};
#ifdef TOOLS_ENABLED
void GDScript::_placeholder_erased(PlaceHolderScriptInstance *p_placeholder) {
placeholders.erase(p_placeholder);
}
#endif
void GDScript::get_script_method_list(List<MethodInfo> *p_list) const {
const GDScript *current = this;
while (current) {
for (const RBMap<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++) {
mi.arguments.push_back(func->get_argument_type(i));
}
mi.return_val = func->get_return_type();
p_list->push_back(mi);
}
current = current->_base;
}
}
void GDScript::get_script_property_list(List<PropertyInfo> *p_list) const {
const GDScript *sptr = this;
List<PropertyInfo> props;
while (sptr) {
Vector<_GDScriptMemberSort> msort;
for (RBMap<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.invert();
for (int i = 0; i < msort.size(); i++) {
props.push_front(sptr->member_info[msort[i].name]);
}
sptr = sptr->_base;
}
for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
p_list->push_back(E->get());
}
}
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 RBMap<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 RBMap<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;
}
if (top->native.is_valid()) {
if (!ClassDB::is_parent_class(p_this->get_class_name(), top->native->get_name())) {
if (ScriptDebugger::get_singleton()) {
GDScriptLanguage::get_singleton()->debug_break_parse(_get_debug_path(), 1, "Script inherits from native type '" + String(top->native->get_name()) + "', so it can't be instanced in object of type: '" + p_this->get_class() + "'");
}
ERR_FAIL_V_MSG(nullptr, "Script inherits from native type '" + String(top->native->get_name()) + "', so it can't be instanced in object of type '" + p_this->get_class() + "'" + ".");
}
}
Variant::CallError unchecked_error;
return _create_instance(nullptr, 0, p_this, Object::cast_to<Reference>(p_this) != nullptr, unchecked_error);
}
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
return NULL;
#endif
}
bool GDScript::instance_has(const Object *p_this) const {
GDScriptLanguage::singleton->lock.lock();
bool hasit = instances.has((Object *)p_this);
GDScriptLanguage::singleton->lock.unlock();
return hasit;
}
bool GDScript::has_source_code() const {
return source != "";
}
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(RBMap<StringName, Variant> &values, List<PropertyInfo> &propnames) {
if (base_cache.is_valid()) {
base_cache->_update_exports_values(values, propnames);
}
for (RBMap<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());
}
}
#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.push_back(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;
Error err = parser.parse(source, basedir, true, path);
if (err == OK) {
const GDScriptParser::Node *root = parser.get_parse_tree();
ERR_FAIL_COND_V(root->type != GDScriptParser::Node::TYPE_CLASS, false);
const GDScriptParser::ClassNode *c = static_cast<const GDScriptParser::ClassNode *>(root);
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_file) != "" && String(c->extends_file) != get_path()) {
path = c->extends_file;
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_class.size() != 0) {
String base = c->extends_class[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());
}
}
}
members_cache.clear();
member_default_values_cache.clear();
for (int i = 0; i < c->variables.size(); i++) {
if (c->variables[i]._export.type == Variant::NIL) {
continue;
}
members_cache.push_back(c->variables[i]._export);
Variant::Type default_value_type = c->variables[i].default_value.get_type();
Variant::Type export_type = c->variables[i]._export.type;
// Convert the default value to the export type to avoid issues with the property editor and scene serialization.
// This is done only in the export side, the script itself will use the default value with no type change.
if (default_value_type != Variant::NIL && default_value_type != export_type) {
Variant::CallError ce;
const Variant *args = &c->variables[i].default_value;
member_default_values_cache[c->variables[i].identifier] = Variant::construct(export_type, &args, 1, ce);
} else {
member_default_values_cache[c->variables[i].identifier] = c->variables[i].default_value;
}
}
_signals.clear();
for (int i = 0; i < c->_signals.size(); i++) {
_signals[c->_signals[i].name] = c->_signals[i].arguments;
}
} else {
placeholder_fallback_enabled = true;
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
RBMap<StringName, Variant> values;
List<PropertyInfo> propnames;
_update_exports_values(values, propnames);
if (changed) {
for (RBSet<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;
}
RBSet<ObjectID> copy = inheriters_cache; //might get modified
for (RBSet<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
}
void GDScript::_set_subclass_path(Ref<GDScript> &p_sc, const String &p_path) {
p_sc->path = p_path;
for (RBMap<StringName, Ref<GDScript>>::Element *E = p_sc->subclasses.front(); E; E = E->next()) {
_set_subclass_path(E->get(), p_path);
}
}
String GDScript::_get_debug_path() const {
if ((get_path().empty() || get_path().find("::") != -1) && !get_name().empty()) {
return get_name() + " (" + get_path().get_slice("::", 0) + ")";
} else {
return get_path();
}
}
Error GDScript::reload(bool p_keep_state) {
GDScriptLanguage::singleton->lock.lock();
bool has_instances = instances.size();
GDScriptLanguage::singleton->lock.unlock();
ERR_FAIL_COND_V(!p_keep_state && has_instances, ERR_ALREADY_IN_USE);
String basedir = path;
if (basedir == "") {
basedir = get_path();
}
if (basedir != "") {
basedir = basedir.get_base_dir();
}
if (source.find("%BASE%") != -1) {
//loading a template, don't parse
return OK;
}
valid = false;
GDScriptParser parser;
Error err = parser.parse(source, basedir, false, path);
if (err) {
if (ScriptDebugger::get_singleton()) {
GDScriptLanguage::get_singleton()->debug_break_parse(_get_debug_path(), parser.get_error_line(), "Parser Error: " + parser.get_error());
}
_err_print_error("GDScript::reload", path.empty() ? "built-in" : (const char *)path.utf8().get_data(), parser.get_error_line(), ("Parse Error: " + parser.get_error()).utf8().get_data(), ERR_HANDLER_SCRIPT);
return ERR_PARSE_ERROR;
}
bool can_run = ScriptServer::is_scripting_enabled() || parser.is_tool_script();
GDScriptCompiler compiler;
err = compiler.compile(&parser, this, p_keep_state);
if (err) {
if (can_run) {
if (ScriptDebugger::get_singleton()) {
GDScriptLanguage::get_singleton()->debug_break_parse(_get_debug_path(), compiler.get_error_line(), "Parser Error: " + compiler.get_error());
}
_err_print_error("GDScript::reload", path.empty() ? "built-in" : (const char *)path.utf8().get_data(), compiler.get_error_line(), ("Compile Error: " + compiler.get_error()).utf8().get_data(), ERR_HANDLER_SCRIPT);
return ERR_COMPILATION_FAILED;
} else {
return err;
}
}
#ifdef DEBUG_ENABLED
for (const List<GDScriptWarning>::Element *E = parser.get_warnings().front(); E; E = E->next()) {
const GDScriptWarning &warning = E->get();
if (ScriptDebugger::get_singleton()) {
Vector<ScriptLanguage::StackInfo> si;
ScriptDebugger::get_singleton()->send_error("", get_path(), warning.line, warning.get_name(), warning.get_message(), ERR_HANDLER_WARNING, si);
}
}
#endif
valid = true;
for (RBMap<StringName, Ref<GDScript>>::Element *E = subclasses.front(); E; E = E->next()) {
_set_subclass_path(E->get(), path);
}
_clear_pending_func_states();
return OK;
}
ScriptLanguage *GDScript::get_language() const {
return GDScriptLanguage::get_singleton();
}
void GDScript::get_constants(RBMap<StringName, Variant> *p_constants) {
if (p_constants) {
for (RBMap<StringName, Variant>::Element *E = constants.front(); E; E = E->next()) {
(*p_constants)[E->key()] = E->value();
}
}
}
void GDScript::get_members(RBSet<StringName> *p_members) {
if (p_members) {
for (RBSet<StringName>::Element *E = members.front(); E; E = E->next()) {
p_members->insert(E->get());
}
}
}
Variant GDScript::call(const StringName &p_method, const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
GDScript *top = this;
while (top) {
RBMap<StringName, GDScriptFunction *>::Element *E = top->member_functions.find(p_method);
if (E) {
ERR_FAIL_COND_V_MSG(!E->get()->is_static(), Variant(), "Can't call non-static function '" + String(p_method) + "' in script.");
return E->get()->call(nullptr, p_args, p_argcount, r_error);
}
top = top->_base;
}
//none found, regular
return Script::call(p_method, p_args, p_argcount, r_error);
}
bool GDScript::_get(const StringName &p_name, Variant &r_ret) const {
{
const GDScript *top = this;
while (top) {
{
const RBMap<StringName, Variant>::Element *E = top->constants.find(p_name);
if (E) {
r_ret = E->get();
return true;
}
}
{
const RBMap<StringName, Ref<GDScript>>::Element *E = subclasses.find(p_name);
if (E) {
r_ret = E->get();
return true;
}
}
top = top->_base;
}
if (p_name == GDScriptLanguage::get_singleton()->strings._script_source) {
r_ret = get_source_code();
return true;
}
}
return false;
}
bool GDScript::_set(const StringName &p_name, const Variant &p_value) {
if (p_name == GDScriptLanguage::get_singleton()->strings._script_source) {
set_source_code(p_value);
reload();
} else {
return false;
}
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));
}
void GDScript::_bind_methods() {
ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "new", &GDScript::_new, MethodInfo("new"));
ClassDB::bind_method(D_METHOD("get_as_byte_code"), &GDScript::get_as_byte_code);
}
Vector<uint8_t> GDScript::get_as_byte_code() const {
GDScriptTokenizerBuffer tokenizer;
return tokenizer.parse_code_string(source);
};
Error GDScript::load_byte_code(const String &p_path) {
Vector<uint8_t> bytecode;
bytecode = FileAccess::get_file_as_array(p_path);
ERR_FAIL_COND_V(bytecode.size() == 0, ERR_PARSE_ERROR);
path = p_path;
String basedir = path;
if (basedir == "") {
basedir = get_path();
}
if (basedir != "") {
basedir = basedir.get_base_dir();
}
valid = false;
GDScriptParser parser;
Error err = parser.parse_bytecode(bytecode, basedir, get_path());
if (err) {
_err_print_error("GDScript::load_byte_code", path.empty() ? "built-in" : (const char *)path.utf8().get_data(), parser.get_error_line(), ("Parse Error: " + parser.get_error()).utf8().get_data(), ERR_HANDLER_SCRIPT);
ERR_FAIL_V(ERR_PARSE_ERROR);
}
GDScriptCompiler compiler;
err = compiler.compile(&parser, this);
if (err) {
_err_print_error("GDScript::load_byte_code", path.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);
}
valid = true;
for (RBMap<StringName, Ref<GDScript>>::Element *E = subclasses.front(); E; E = E->next()) {
_set_subclass_path(E->get(), path);
}
return OK;
}
Error GDScript::load_source_code(const String &p_path) {
PoolVector<uint8_t> sourcef;
Error err;
FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
if (err) {
ERR_FAIL_COND_V(err, err);
}
uint64_t len = f->get_len();
sourcef.resize(len + 1);
PoolVector<uint8_t>::Write w = sourcef.write();
uint64_t r = f->get_buffer(w.ptr(), len);
f->close();
memdelete(f);
ERR_FAIL_COND_V(r != len, ERR_CANT_OPEN);
w[len] = 0;
String s;
if (s.parse_utf8((const char *)w.ptr())) {
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.");
}
source = s;
#ifdef TOOLS_ENABLED
source_changed_cache = true;
#endif
path = p_path;
return OK;
}
const RBMap<StringName, GDScriptFunction *> &GDScript::debug_get_member_functions() const {
return member_functions;
}
StringName GDScript::debug_get_member_by_index(int p_idx) const {
for (const RBMap<StringName, MemberInfo>::Element *E = member_indices.front(); E; E = E->next()) {
if (E->get().index == p_idx) {
return E->key();
}
}
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_signals) const {
for (const RBMap<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_signals->push_back(mi);
}
if (base.is_valid()) {
base->get_script_signal_list(r_signals);
}
#ifdef TOOLS_ENABLED
else if (base_cache.is_valid()) {
base_cache->get_script_signal_list(r_signals);
}
#endif
}
GDScript::GDScript() :
script_list(this) {
valid = false;
subclass_count = 0;
initializer = nullptr;
_base = nullptr;
_owner = nullptr;
tool = false;
#ifdef TOOLS_ENABLED
source_changed_cache = false;
placeholder_fallback_enabled = false;
#endif
#ifdef DEBUG_ENABLED
GDScriptLanguage::get_singleton()->lock.lock();
GDScriptLanguage::get_singleton()->script_list.add(&script_list);
GDScriptLanguage::get_singleton()->lock.unlock();
#endif
}
void GDScript::_save_orphaned_subclasses() {
struct ClassRefWithName {
ObjectID id;
String fully_qualified_name;
};
Vector<ClassRefWithName> weak_subclasses;
// collect subclasses ObjectID and name
for (RBMap<StringName, Ref<GDScript>>::Element *E = subclasses.front(); E; E = E->next()) {
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);
}
}
GDScript::~GDScript() {
_clear_pending_func_states();
for (RBMap<StringName, GDScriptFunction *>::Element *E = member_functions.front(); E; E = E->next()) {
memdelete(E->get());
}
_save_orphaned_subclasses();
#ifdef DEBUG_ENABLED
GDScriptLanguage::get_singleton()->lock.lock();
GDScriptLanguage::get_singleton()->script_list.remove(&script_list);
GDScriptLanguage::get_singleton()->lock.unlock();
#endif
}
//////////////////////////////
// INSTANCE //
//////////////////////////////
bool GDScriptInstance::set(const StringName &p_name, const Variant &p_value) {
//member
{
const RBMap<StringName, GDScript::MemberInfo>::Element *E = script->member_indices.find(p_name);
if (E) {
const GDScript::MemberInfo *member = &E->get();
if (member->setter) {
const Variant *val = &p_value;
Variant::CallError err;
call(member->setter, &val, 1, err);
if (err.error == Variant::CallError::CALL_OK) {
return true; //function exists, call was successful
} else {
return false;
}
} else {
if (!member->data_type.is_type(p_value)) {
// Try conversion
Variant::CallError ce;
const Variant *value = &p_value;
Variant converted = Variant::construct(member->data_type.builtin_type, &value, 1, ce);
if (ce.error == Variant::CallError::CALL_OK) {
members.write[member->index] = converted;
return true;
} else {
return false;
}
} else {
members.write[member->index] = p_value;
}
}
return true;
}
}
GDScript *sptr = script.ptr();
while (sptr) {
RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(GDScriptLanguage::get_singleton()->strings._set);
if (E) {
Variant name = p_name;
const Variant *args[2] = { &name, &p_value };
Variant::CallError err;
Variant ret = E->get()->call(this, (const Variant **)args, 2, err);
if (err.error == Variant::CallError::CALL_OK && ret.get_type() == Variant::BOOL && ret.operator bool()) {
return true;
}
}
sptr = sptr->_base;
}
return false;
}
bool GDScriptInstance::get(const StringName &p_name, Variant &r_ret) const {
const GDScript *sptr = script.ptr();
while (sptr) {
{
const RBMap<StringName, GDScript::MemberInfo>::Element *E = script->member_indices.find(p_name);
if (E) {
if (E->get().getter) {
Variant::CallError err;
r_ret = const_cast<GDScriptInstance *>(this)->call(E->get().getter, nullptr, 0, err);
if (err.error == Variant::CallError::CALL_OK) {
return true;
}
}
r_ret = members[E->get().index];
return true; //index found
}
}
{
const GDScript *sl = sptr;
while (sl) {
const RBMap<StringName, Variant>::Element *E = sl->constants.find(p_name);
if (E) {
r_ret = E->get();
return true; //index found
}
sl = sl->_base;
}
}
{
const RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(GDScriptLanguage::get_singleton()->strings._get);
if (E) {
Variant name = p_name;
const Variant *args[1] = { &name };
Variant::CallError err;
Variant ret = const_cast<GDScriptFunction *>(E->get())->call(const_cast<GDScriptInstance *>(this), (const Variant **)args, 1, err);
if (err.error == Variant::CallError::CALL_OK && ret.get_type() != Variant::NIL) {
r_ret = ret;
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!
const GDScript *sptr = script.ptr();
List<PropertyInfo> props;
while (sptr) {
const RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(GDScriptLanguage::get_singleton()->strings._get_property_list);
if (E) {
Variant::CallError err;
Variant ret = const_cast<GDScriptFunction *>(E->get())->call(const_cast<GDScriptInstance *>(this), nullptr, 0, err);
if (err.error == Variant::CallError::CALL_OK) {
ERR_FAIL_COND_MSG(ret.get_type() != Variant::ARRAY, "Wrong type for _get_property_list, must be an array of dictionaries.");
Array arr = ret;
for (int i = 0; i < arr.size(); i++) {
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);
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"];
}
props.push_back(pinfo);
}
}
}
//instance a fake script for editing the values
Vector<_GDScriptMemberSort> msort;
for (RBMap<StringName, PropertyInfo>::Element *F = sptr->member_info.front(); F; F = F->next()) {
_GDScriptMemberSort ms;
ERR_CONTINUE(!sptr->member_indices.has(F->key()));
ms.index = sptr->member_indices[F->key()].index;
ms.name = F->key();
msort.push_back(ms);
}
msort.sort();
msort.invert();
for (int i = 0; i < msort.size(); i++) {
props.push_front(sptr->member_info[msort[i].name]);
}
sptr = sptr->_base;
}
for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
p_properties->push_back(E->get());
}
}
void GDScriptInstance::get_method_list(List<MethodInfo> *p_list) const {
const GDScript *sptr = script.ptr();
while (sptr) {
for (RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.front(); E; E = E->next()) {
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)));
}
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 RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(p_method);
if (E) {
return true;
}
sptr = sptr->_base;
}
return false;
}
Variant GDScriptInstance::call(const StringName &p_method, const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
GDScript *sptr = script.ptr();
while (sptr) {
RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(p_method);
if (E) {
return E->get()->call(this, p_args, p_argcount, r_error);
}
sptr = sptr->_base;
}
r_error.error = Variant::CallError::CALL_ERROR_INVALID_METHOD;
return Variant();
}
void GDScriptInstance::call_multilevel(const StringName &p_method, const Variant **p_args, int p_argcount) {
GDScript *sptr = script.ptr();
Variant::CallError ce;
while (sptr) {
RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(p_method);
if (E) {
E->get()->call(this, p_args, p_argcount, ce);
}
sptr = sptr->_base;
}
}
void GDScriptInstance::_ml_call_reversed(GDScript *sptr, const StringName &p_method, const Variant **p_args, int p_argcount) {
if (sptr->_base) {
_ml_call_reversed(sptr->_base, p_method, p_args, p_argcount);
}
Variant::CallError ce;
RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(p_method);
if (E) {
E->get()->call(this, p_args, p_argcount, ce);
}
}
void GDScriptInstance::call_multilevel_reversed(const StringName &p_method, const Variant **p_args, int p_argcount) {
if (script.ptr()) {
_ml_call_reversed(script.ptr(), p_method, p_args, p_argcount);
}
}
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 };
GDScript *sptr = script.ptr();
while (sptr) {
RBMap<StringName, GDScriptFunction *>::Element *E = sptr->member_functions.find(GDScriptLanguage::get_singleton()->strings._notification);
if (E) {
Variant::CallError err;
E->get()->call(this, args, 1, err);
if (err.error != Variant::CallError::CALL_OK) {
//print error about notification call
}
}
sptr = sptr->_base;
}
}
String GDScriptInstance::to_string(bool *r_valid) {
if (has_method(CoreStringNames::get_singleton()->_to_string)) {
Variant::CallError ce;
Variant ret = call(CoreStringNames::get_singleton()->_to_string, nullptr, 0, ce);
if (ce.error == Variant::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 {
return script;
}
ScriptLanguage *GDScriptInstance::get_language() {
return GDScriptLanguage::get_singleton();
}
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 (RBMap<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 (RBMap<StringName, GDScript::MemberInfo>::Element *E = script->member_indices.front(); E; E = E->next()) {
member_indices_cache[E->key()] = E->get().index;
}
#endif
}
GDScriptInstance::GDScriptInstance() {
owner = nullptr;
base_ref = false;
}
GDScriptInstance::~GDScriptInstance() {
GDScriptLanguage::singleton->lock.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);
}
GDScriptLanguage::singleton->lock.unlock();
}
/************* SCRIPT LANGUAGE **************/
GDScriptLanguage *GDScriptLanguage::singleton = nullptr;
String GDScriptLanguage::get_name() const {
return "GDScript";
}
/* LANGUAGE FUNCTIONS */
void GDScriptLanguage::_add_global(const StringName &p_name, const Variant &p_value) {
if (globals.has(p_name)) {
//overwrite existing
global_array.write[globals[p_name]] = p_value;
return;
}
globals[p_name] = global_array.size();
global_array.push_back(p_value);
_global_array = global_array.ptrw();
}
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);
}
void GDScriptLanguage::init() {
//populate global constants
int gcc = GlobalConstants::get_global_constant_count();
for (int i = 0; i < gcc; i++) {
_add_global(StaticCString::create(GlobalConstants::get_global_constant_name(i)), GlobalConstants::get_global_constant_value(i));
}
_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);
//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()) {
StringName n = E->get();
String s = String(n);
if (s.begins_with("_")) {
n = s.substr(1, s.length());
}
if (globals.has(n)) {
continue;
}
Ref<GDScriptNativeClass> nc = memnew(GDScriptNativeClass(E->get()));
_add_global(n, nc);
}
//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);
}
}
String GDScriptLanguage::get_type() const {
return "GDScript";
}
String GDScriptLanguage::get_extension() const {
return "gd";
}
Error GDScriptLanguage::execute_file(const String &p_path) {
// ??
return OK;
}
void GDScriptLanguage::finish() {
}
void GDScriptLanguage::profiling_start() {
#ifdef DEBUG_ENABLED
lock.lock();
SelfList<GDScriptFunction> *elem = function_list.first();
while (elem) {
elem->self()->profile.call_count.set(0);
elem->self()->profile.self_time.set(0);
elem->self()->profile.total_time.set(0);
elem->self()->profile.frame_call_count.set(0);
elem->self()->profile.frame_self_time.set(0);
elem->self()->profile.frame_total_time.set(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;
lock.unlock();
#endif
}
void GDScriptLanguage::profiling_stop() {
#ifdef DEBUG_ENABLED
lock.lock();
profiling = false;
lock.unlock();
#endif
}
int GDScriptLanguage::profiling_get_accumulated_data(ProfilingInfo *p_info_arr, int p_info_max) {
int current = 0;
#ifdef DEBUG_ENABLED
lock.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.get();
p_info_arr[current].self_time = elem->self()->profile.self_time.get();
p_info_arr[current].total_time = elem->self()->profile.total_time.get();
p_info_arr[current].signature = elem->self()->profile.signature;
elem = elem->next();
current++;
}
lock.unlock();
#endif
return current;
}
int GDScriptLanguage::profiling_get_frame_data(ProfilingInfo *p_info_arr, int p_info_max) {
int current = 0;
#ifdef DEBUG_ENABLED
lock.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();
}
lock.unlock();
#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");
lock.lock();
List<Ref<GDScript>> scripts;
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();
}
lock.unlock();
//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
lock.lock();
List<Ref<GDScript>> scripts;
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();
}
lock.unlock();
//when someone asks you why dynamically typed languages are easier to write....
RBMap<Ref<GDScript>, RBMap<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(), RBMap<ObjectID, List<Pair<StringName, Variant>>>());
if (!p_soft_reload) {
//save state and remove script from instances
RBMap<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(RefPtr());
}
}
//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(RefPtr());
} 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 (RBMap<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 (RBMap<Ref<GDScript>, RBMap<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 (RBMap<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(RefPtr());
}
obj->set_script(scr.get_ref_ptr());
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
}
void GDScriptLanguage::frame() {
calls = 0;
#ifdef DEBUG_ENABLED
if (profiling) {
lock.lock();
SelfList<GDScriptFunction> *elem = function_list.first();
while (elem) {
elem->self()->profile.last_frame_call_count = elem->self()->profile.frame_call_count.get();
elem->self()->profile.last_frame_self_time = elem->self()->profile.frame_self_time.get();
elem->self()->profile.last_frame_total_time = elem->self()->profile.frame_total_time.get();
elem->self()->profile.frame_call_count.set(0);
elem->self()->profile.frame_self_time.set(0);
elem->self()->profile.frame_total_time.set(0);
elem = elem->next();
}
lock.unlock();
}
#endif
}
/* EDITOR FUNCTIONS */
void GDScriptLanguage::get_reserved_words(List<String> *p_words) const {
static const char *_reserved_words[] = {
// operators
"and",
"in",
"not",
"or",
// types and values
"false",
"float",
"int",
"bool",
"null",
"PI",
"TAU",
"INF",
"NAN",
"self",
"true",
"void",
// functions
"as",
"assert",
"breakpoint",
"class",
"class_name",
"extends",
"is",
"func",
"preload",
"setget",
"signal",
"tool",
"yield",
// var
"const",
"enum",
"export",
"onready",
"static",
"var",
// control flow
"break",
"continue",
"if",
"elif",
"else",
"for",
"pass",
"return",
"match",
"while",
nullptr
};
const char **w = _reserved_words;
while (*w) {
p_words->push_back(*w);
w++;
}
for (int i = 0; i < GDScriptFunctions::FUNC_MAX; i++) {
p_words->push_back(GDScriptFunctions::get_func_name(GDScriptFunctions::Function(i)));
}
}
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";
}
String GDScriptLanguage::get_global_class_name(const String &p_path, String *r_base_type, String *r_icon_path) const {
PoolVector<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;
parser.parse(source, p_path.get_base_dir(), true, p_path, false, nullptr, true);
if (parser.get_parse_tree() && parser.get_parse_tree()->type == GDScriptParser::Node::TYPE_CLASS) {
const GDScriptParser::ClassNode *c = static_cast<const GDScriptParser::ClassNode *>(parser.get_parse_tree());
if (r_icon_path) {
if (c->icon_path.empty() || c->icon_path.is_abs_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) {
if (subclass->extends_file) {
if (subclass->extends_class.size() == 0) {
get_global_class_name(subclass->extends_file, r_base_type);
subclass = nullptr;
break;
} else {
Vector<StringName> extend_classes = subclass->extends_class;
FileAccessRef subfile = FileAccess::open(subclass->extends_file, FileAccess::READ);
if (!subfile) {
break;
}
String subsource = subfile->get_as_utf8_string();
if (subsource.empty()) {
break;
}
String subpath = subclass->extends_file;
if (subpath.is_rel_path()) {
subpath = path.get_base_dir().plus_file(subpath).simplify_path();
}
if (OK != subparser.parse(subsource, subpath.get_base_dir(), true, subpath, false, nullptr, true)) {
break;
}
path = subpath;
if (!subparser.get_parse_tree() || subparser.get_parse_tree()->type != GDScriptParser::Node::TYPE_CLASS) {
break;
}
subclass = static_cast<const GDScriptParser::ClassNode *>(subparser.get_parse_tree());
while (extend_classes.size() > 0) {
bool found = false;
for (int i = 0; i < subclass->subclasses.size(); i++) {
const GDScriptParser::ClassNode *inner_class = subclass->subclasses[i];
if (inner_class->name == extend_classes[0]) {
extend_classes.remove(0);
found = true;
subclass = inner_class;
break;
}
}
if (!found) {
subclass = nullptr;
break;
}
}
}
} else if (subclass->extends_class.size() == 1) {
*r_base_type = subclass->extends_class[0];
subclass = nullptr;
} else {
break;
}
} else {
*r_base_type = "Reference";
subclass = nullptr;
}
}
}
return c->name;
}
return String();
}
#ifdef DEBUG_ENABLED
String GDScriptWarning::get_message() const {
#define CHECK_SYMBOLS(m_amount) ERR_FAIL_COND_V(symbols.size() < m_amount, String());
switch (code) {
case UNASSIGNED_VARIABLE_OP_ASSIGN: {
CHECK_SYMBOLS(1);
return "Using assignment with operation but the variable '" + symbols[0] + "' was not previously assigned a value.";
} break;
case UNASSIGNED_VARIABLE: {
CHECK_SYMBOLS(1);
return "The variable '" + symbols[0] + "' was used but never assigned a value.";
} break;
case UNUSED_VARIABLE: {
CHECK_SYMBOLS(1);
return "The local variable '" + symbols[0] + "' is declared but never used in the block. If this is intended, prefix it with an underscore: '_" + symbols[0] + "'";
} break;
case SHADOWED_VARIABLE: {
CHECK_SYMBOLS(2);
return "The local variable '" + symbols[0] + "' is shadowing an already-defined variable at line " + symbols[1] + ".";
} break;
case UNUSED_CLASS_VARIABLE: {
CHECK_SYMBOLS(1);
return "The class variable '" + symbols[0] + "' is declared but never used in the script.";
} break;
case UNUSED_ARGUMENT: {
CHECK_SYMBOLS(2);
return "The argument '" + symbols[1] + "' is never used in the function '" + symbols[0] + "'. If this is intended, prefix it with an underscore: '_" + symbols[1] + "'";
} break;
case UNREACHABLE_CODE: {
CHECK_SYMBOLS(1);
return "Unreachable code (statement after return) in function '" + symbols[0] + "()'.";
} break;
case STANDALONE_EXPRESSION: {
return "Standalone expression (the line has no effect).";
} break;
case VOID_ASSIGNMENT: {
CHECK_SYMBOLS(1);
return "Assignment operation, but the function '" + symbols[0] + "()' returns void.";
} break;
case NARROWING_CONVERSION: {
return "Narrowing conversion (float is converted to int and loses precision).";
} break;
case FUNCTION_MAY_YIELD: {
CHECK_SYMBOLS(1);
return "Assigned variable is typed but the function '" + symbols[0] + "()' may yield and return a GDScriptFunctionState instead.";
} break;
case VARIABLE_CONFLICTS_FUNCTION: {
CHECK_SYMBOLS(1);
return "Variable declaration of '" + symbols[0] + "' conflicts with a function of the same name.";
} break;
case FUNCTION_CONFLICTS_VARIABLE: {
CHECK_SYMBOLS(1);
return "Function declaration of '" + symbols[0] + "()' conflicts with a variable of the same name.";
} break;
case FUNCTION_CONFLICTS_CONSTANT: {
CHECK_SYMBOLS(1);
return "Function declaration of '" + symbols[0] + "()' conflicts with a constant of the same name.";
} break;
case INCOMPATIBLE_TERNARY: {
return "Values of the ternary conditional are not mutually compatible.";
} break;
case UNUSED_SIGNAL: {
CHECK_SYMBOLS(1);
return "The signal '" + symbols[0] + "' is declared but never emitted.";
} break;
case RETURN_VALUE_DISCARDED: {
CHECK_SYMBOLS(1);
return "The function '" + symbols[0] + "()' returns a value, but this value is never used.";
} break;
case PROPERTY_USED_AS_FUNCTION: {
CHECK_SYMBOLS(2);
return "The method '" + symbols[0] + "()' was not found in base '" + symbols[1] + "' but there's a property with the same name. Did you mean to access it?";
} break;
case CONSTANT_USED_AS_FUNCTION: {
CHECK_SYMBOLS(2);
return "The method '" + symbols[0] + "()' was not found in base '" + symbols[1] + "' but there's a constant with the same name. Did you mean to access it?";
} break;
case FUNCTION_USED_AS_PROPERTY: {
CHECK_SYMBOLS(2);
return "The property '" + symbols[0] + "' was not found in base '" + symbols[1] + "' but there's a method with the same name. Did you mean to call it?";
} break;
case INTEGER_DIVISION: {
return "Integer division, decimal part will be discarded.";
} break;
case UNSAFE_PROPERTY_ACCESS: {
CHECK_SYMBOLS(2);
return "The property '" + symbols[0] + "' is not present on the inferred type '" + symbols[1] + "' (but may be present on a subtype).";
} break;
case UNSAFE_METHOD_ACCESS: {
CHECK_SYMBOLS(2);
return "The method '" + symbols[0] + "' is not present on the inferred type '" + symbols[1] + "' (but may be present on a subtype).";
} break;
case UNSAFE_CAST: {
CHECK_SYMBOLS(1);
return "The value is cast to '" + symbols[0] + "' but has an unknown type.";
} break;
case UNSAFE_CALL_ARGUMENT: {
CHECK_SYMBOLS(4);
return "The argument '" + symbols[0] + "' of the function '" + symbols[1] + "' requires a the subtype '" + symbols[2] + "' but the supertype '" + symbols[3] + "' was provided";
} break;
case DEPRECATED_KEYWORD: {
CHECK_SYMBOLS(2);
return "The '" + symbols[0] + "' keyword is deprecated and will be removed in a future release, please replace its uses by '" + symbols[1] + "'.";
} break;
case STANDALONE_TERNARY: {
return "Standalone ternary conditional operator: the return value is being discarded.";
}
case EXPORT_HINT_TYPE_MISTMATCH: {
CHECK_SYMBOLS(2);
return vformat("The type of the default value (%s) doesn't match the type of the export hint (%s). The type won't be coerced.", symbols[0], symbols[1]);
}
case WARNING_MAX:
break; // Can't happen, but silences warning
}
ERR_FAIL_V_MSG(String(), "Invalid GDScript warning code: " + get_name_from_code(code) + ".");
#undef CHECK_SYMBOLS
}
String GDScriptWarning::get_name() const {
return get_name_from_code(code);
}
String GDScriptWarning::get_name_from_code(Code p_code) {
ERR_FAIL_COND_V(p_code < 0 || p_code >= WARNING_MAX, String());
static const char *names[] = {
"UNASSIGNED_VARIABLE",
"UNASSIGNED_VARIABLE_OP_ASSIGN",
"UNUSED_VARIABLE",
"SHADOWED_VARIABLE",
"UNUSED_CLASS_VARIABLE",
"UNUSED_ARGUMENT",
"UNREACHABLE_CODE",
"STANDALONE_EXPRESSION",
"VOID_ASSIGNMENT",
"NARROWING_CONVERSION",
"FUNCTION_MAY_YIELD",
"VARIABLE_CONFLICTS_FUNCTION",
"FUNCTION_CONFLICTS_VARIABLE",
"FUNCTION_CONFLICTS_CONSTANT",
"INCOMPATIBLE_TERNARY",
"UNUSED_SIGNAL",
"RETURN_VALUE_DISCARDED",
"PROPERTY_USED_AS_FUNCTION",
"CONSTANT_USED_AS_FUNCTION",
"FUNCTION_USED_AS_PROPERTY",
"INTEGER_DIVISION",
"UNSAFE_PROPERTY_ACCESS",
"UNSAFE_METHOD_ACCESS",
"UNSAFE_CAST",
"UNSAFE_CALL_ARGUMENT",
"DEPRECATED_KEYWORD",
"STANDALONE_TERNARY",
"EXPORT_HINT_TYPE_MISTMATCH",
nullptr
};
return names[(int)p_code];
}
GDScriptWarning::Code GDScriptWarning::get_code_from_name(const String &p_name) {
for (int i = 0; i < WARNING_MAX; i++) {
if (get_name_from_code((Code)i) == p_name) {
return (Code)i;
}
}
ERR_FAIL_V_MSG(WARNING_MAX, "Invalid GDScript warning name: " + p_name);
}
#endif // DEBUG_ENABLED
#if !defined(NO_THREADS)
thread_local GDScriptLanguage::CallStack GDScriptLanguage::_call_stack;
thread_local int GDScriptLanguage::_debug_parse_err_line = -1;
thread_local String GDScriptLanguage::_debug_parse_err_file;
thread_local String GDScriptLanguage::_debug_error;
#endif
GDScriptLanguage::GDScriptLanguage() {
GDScriptTokenizer::initialize();
calls = 0;
ERR_FAIL_COND(singleton);
singleton = this;
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 = "";
profiling = false;
script_frame_time = 0;
int dmcs = GLOBAL_DEF("debug/settings/gdscript/max_call_stack", 1024);
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 (ScriptDebugger::get_singleton()) {
//debugging enabled!
_debug_max_call_stack = dmcs;
} else {
_debug_max_call_stack = 0;
}
#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_") && i != GDScriptWarning::UNUSED_CLASS_VARIABLE && i != GDScriptWarning::RETURN_VALUE_DISCARDED;
GLOBAL_DEF("debug/gdscript/warnings/" + warning, default_enabled);
}
#endif // DEBUG_ENABLED
}
GDScriptLanguage::~GDScriptLanguage() {
GDScriptTokenizer::terminate();
_call_stack.free();
// 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 (RBMap<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 (RBMap<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;
}
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) {
RBMap<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));
}
/*************** RESOURCE ***************/
RES ResourceFormatLoaderGDScript::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_no_subresource_cache) {
if (r_error) {
*r_error = ERR_FILE_CANT_OPEN;
}
GDScript *script = memnew(GDScript);
Ref<GDScript> scriptres(script);
if (p_path.ends_with(".gde") || p_path.ends_with(".gdc")) {
script->set_script_path(p_original_path); // script needs this.
script->set_path(p_original_path, true);
Error err = script->load_byte_code(p_path);
ERR_FAIL_COND_V_MSG(err != OK, RES(), "Cannot load byte code from file '" + p_path + "'.");
} else {
Error err = script->load_source_code(p_path);
ERR_FAIL_COND_V_MSG(err != OK, RES(), "Cannot load source code from file '" + p_path + "'.");
script->set_script_path(p_original_path); // script needs this.
script->set_path(p_original_path, true);
script->reload();
}
if (r_error) {
*r_error = OK;
}
return scriptres;
}
void ResourceFormatLoaderGDScript::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("gd");
p_extensions->push_back("gdc");
p_extensions->push_back("gde");
}
bool ResourceFormatLoaderGDScript::handles_type(const String &p_type) const {
return (p_type == "Script" || p_type == "GDScript");
}
String ResourceFormatLoaderGDScript::get_resource_type(const String &p_path) const {
String el = p_path.get_extension().to_lower();
if (el == "gd" || el == "gdc" || el == "gde") {
return "GDScript";
}
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);
ERR_FAIL_COND_MSG(!file, "Cannot open file '" + p_path + "'.");
String source = file->get_as_utf8_string();
if (source.empty()) {
return;
}
GDScriptParser parser;
if (OK != parser.parse(source, p_path.get_base_dir(), true, p_path, false, nullptr, true)) {
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) {
Ref<GDScript> sqscr = p_resource;
ERR_FAIL_COND_V(sqscr.is_null(), ERR_INVALID_PARAMETER);
String source = sqscr->get_source_code();
Error err;
FileAccess *file = FileAccess::open(p_path, FileAccess::WRITE, &err);
ERR_FAIL_COND_V_MSG(err, err, "Cannot save GDScript file '" + p_path + "'.");
file->store_string(source);
if (file->get_error() != OK && file->get_error() != ERR_FILE_EOF) {
memdelete(file);
return ERR_CANT_CREATE;
}
file->close();
memdelete(file);
if (ScriptServer::is_reload_scripts_on_save_enabled()) {
GDScriptLanguage::get_singleton()->reload_tool_script(p_resource, false);
}
return OK;
}
void ResourceFormatSaverGDScript::get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const {
if (Object::cast_to<GDScript>(*p_resource)) {
p_extensions->push_back("gd");
}
}
bool ResourceFormatSaverGDScript::recognize(const RES &p_resource) const {
return Object::cast_to<GDScript>(*p_resource) != nullptr;
}
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