import jdk.nashorn.internal.scripts.JD; //导入依赖的package包/类
private Object createObject(final PropertyMap propertyMap, final List<Object> values, final ArrayData arrayData) {
    final long[] primitiveSpill = dualFields ? new long[values.size()] : null;
    final Object[] objectSpill = new Object[values.size()];

    for (final Property property : propertyMap.getProperties()) {
        if (!dualFields || property.getType() == Object.class) {
            objectSpill[property.getSlot()] = values.get(property.getSlot());
        } else {
            primitiveSpill[property.getSlot()] = ObjectClassGenerator.pack((Number) values.get(property.getSlot()));
        }
    }

    final ScriptObject object = dualFields ?
            new JD(propertyMap, primitiveSpill, objectSpill) : new JO(propertyMap, null, objectSpill);
    object.setInitialProto(global.getObjectPrototype());
    object.setArray(arrayData);
    return object;
}
 

import jdk.nashorn.internal.scripts.JD; //导入依赖的package包/类
@Override
protected Class<? extends ScriptObject> getAllocatorClass() {
    return codegen.useDualFields() ? JD.class : JO.class;
}
 

import jdk.nashorn.internal.scripts.JD; //导入依赖的package包/类
/**
 * Create a new empty script object
 *
 * @return the new ScriptObject
 */
public ScriptObject newObject() {
    return useDualFields() ? new JD(getObjectPrototype()) : new JO(getObjectPrototype());
}