/* * Copyright (c) 2020, Matthew Olsson * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include namespace JS { class ProxyObject final : public Function { JS_OBJECT(ProxyObject, Function); public: static ProxyObject* create(GlobalObject&, Object& target, Object& handler); ProxyObject(Object& target, Object& handler, Object& prototype); virtual ~ProxyObject() override; virtual Value call(Interpreter&) override; virtual Value construct(Interpreter&, Function& new_target) override; virtual const FlyString& name() const override; virtual LexicalEnvironment* create_environment() override; const Object& target() const { return m_target; } const Object& handler() const { return m_handler; } virtual Object* prototype() override; virtual const Object* prototype() const override; virtual bool set_prototype(Object* object) override; virtual bool is_extensible() const override; virtual bool prevent_extensions() override; virtual Optional get_own_property_descriptor(const PropertyName&) const override; virtual bool define_property(const StringOrSymbol& property_name, const Object& descriptor, bool throw_exceptions = true) override; virtual bool has_property(const PropertyName& name) const override; virtual Value get(const PropertyName& name, Value receiver) const override; virtual bool put(const PropertyName& name, Value value, Value receiver) override; virtual Value delete_property(const PropertyName& name) override; void revoke() { m_is_revoked = true; } private: virtual void visit_children(Visitor&) override; virtual bool is_proxy_object() const override { return true; } virtual bool is_function() const override { return m_target.is_function(); } virtual bool is_array() const override { return m_target.is_array(); }; Object& m_target; Object& m_handler; bool m_is_revoked { false }; }; }