////  ScriptValueIteratorV8Wrapper.cpp//  libraries/script-engine/src/v8////  Created by Heather Anderson on 8/29/21.//  Modified for V8 by dr Karol Suprynowicz on 2022/10/08//  Copyright 2021 Vircadia contributors.//  Copyright 2022-2023 Overte e.V.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//  SPDX-License-Identifier: Apache-2.0// #include "ScriptValueIteratorV8Wrapper.h"#include "ScriptEngineLoggingV8.h" V8ScriptValueIterator::V8ScriptValueIterator(ScriptEngineV8* engine, v8::Local<v8::Value> object) : _engine(engine)  {    auto isolate = _engine->getIsolate();    Q_ASSERT(isolate->IsCurrent());    v8::HandleScope handleScope(isolate);    _context.Reset(isolate, _engine->getContext());    auto context = _context.Get(isolate);    v8::Context::Scope contextScope(context);    Q_ASSERT(object->IsObject());    v8::Local<v8::Object> v8Object = v8::Local<v8::Object>::Cast(object);    _object.Reset(isolate, v8Object);    _propertyNames.Reset(isolate, v8Object->GetOwnPropertyNames(context).ToLocalChecked());    _length = _propertyNames.Get(isolate)->Length();    _currentIndex = -1;} V8ScriptValueIterator::~V8ScriptValueIterator() {    auto isolate = _engine->getIsolate();    Q_ASSERT(isolate->IsCurrent());    v8::HandleScope handleScope(isolate);    _propertyNames.Reset();    _object.Reset();    _context.Reset();} bool V8ScriptValueIterator::hasNext() const {    return _currentIndex < _length - 1;} QString V8ScriptValueIterator::name() const {    Q_ASSERT(_currentIndex >= 0);    auto isolate = _engine->getIsolate();    Q_ASSERT(isolate->IsCurrent());    v8::HandleScope handleScope(isolate);    auto context = _context.Get(isolate);    v8::Context::Scope contextScope(context);    v8::Local<v8::Value> propertyName;    if (!_propertyNames.Get(isolate)->Get(context, _currentIndex).ToLocal(&propertyName)) {        Q_ASSERT(false);    }    return QString(*v8::String::Utf8Value(isolate, propertyName));} void V8ScriptValueIterator::next() {    if (_currentIndex < _length - 1) {        _currentIndex++;    }} V8ScriptValue V8ScriptValueIterator::value() {    Q_ASSERT(_currentIndex >= 0);    auto isolate = _engine->getIsolate();    Q_ASSERT(isolate->IsCurrent());    v8::HandleScope handleScope(isolate);    auto context = _context.Get(isolate);    v8::Context::Scope contextScope(context);    v8::Local<v8::Value> v8Value;    v8::Local<v8::Value> propertyName;    if (!_propertyNames.Get(isolate)->Get(context, _currentIndex).ToLocal(&propertyName)) {        Q_ASSERT(false);    }    if (!_object.Get(isolate)->Get(context, propertyName->ToString(context).ToLocalChecked()).ToLocal(&v8Value)) {        Q_ASSERT(false);    }    if (v8Value.IsEmpty()) {        qDebug() << "V8ScriptValueIterator::value: value handle is empty for key: " << *v8::String::Utf8Value(isolate, propertyName->ToString(context).ToLocalChecked());        v8Value = v8::Undefined(isolate);    }    return V8ScriptValue(_engine, v8Value);} ScriptValue::PropertyFlags ScriptValueIteratorV8Wrapper::flags() const {    //V8TODO    return ScriptValue::PropertyFlags();} bool ScriptValueIteratorV8Wrapper::hasNext() const {    return _value->hasNext();} QString ScriptValueIteratorV8Wrapper::name() const {    return _value->name();} void ScriptValueIteratorV8Wrapper::next() {    _value->next();} ScriptValue ScriptValueIteratorV8Wrapper::value() const {    V8ScriptValue result = _value->value();    return ScriptValue(new ScriptValueV8Wrapper(_engine, std::move(result)));}