127 lines
4.7 KiB
C++
127 lines
4.7 KiB
C++
/*
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "EventLoop.h"
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#include "Microtasks.h"
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#include "ReferrerPolicy.h"
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#include "ScriptExecutionContext.h"
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#include "SecurityOrigin.h"
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#include <wtf/IsoMalloc.h>
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namespace WebCore {
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class EmptyScriptExecutionContext final : public RefCounted<EmptyScriptExecutionContext>, public ScriptExecutionContext {
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public:
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static Ref<EmptyScriptExecutionContext> create(JSC::VM& vm)
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{
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return adoptRef(*new EmptyScriptExecutionContext(vm));
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}
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bool isSecureContext() const final { return false; }
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bool isJSExecutionForbidden() const final { return false; }
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EventLoopTaskGroup& eventLoop() final
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{
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ASSERT_NOT_REACHED();
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return *m_eventLoopTaskGroup;
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}
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const URL& url() const final { return m_url; }
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URL completeURL(const String&, ForceUTF8 = ForceUTF8::No) const final { return { }; };
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String userAgent(const URL&) const final { return emptyString(); }
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ReferrerPolicy referrerPolicy() const final { return ReferrerPolicy::EmptyString; }
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void disableEval(const String&) final { };
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void disableWebAssembly(const String&) final { };
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IDBClient::IDBConnectionProxy* idbConnectionProxy() final { return nullptr; }
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SocketProvider* socketProvider() final { return nullptr; }
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void addConsoleMessage(std::unique_ptr<Inspector::ConsoleMessage>&&) final { }
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void addConsoleMessage(MessageSource, MessageLevel, const String&, unsigned long) final { };
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SecurityOrigin& topOrigin() const final { return m_origin.get(); };
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void postTask(Task&&) final { ASSERT_NOT_REACHED(); }
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EventTarget* errorEventTarget() final { return nullptr; };
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#if ENABLE(WEB_CRYPTO)
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bool wrapCryptoKey(const Vector<uint8_t>&, Vector<uint8_t>&) final { return false; }
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bool unwrapCryptoKey(const Vector<uint8_t>&, Vector<uint8_t>&) final { return false; }
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#endif
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JSC::VM& vm() final { return m_vm; }
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using RefCounted::ref;
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using RefCounted::deref;
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private:
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EmptyScriptExecutionContext(JSC::VM& vm)
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: m_vm(vm)
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, m_origin(SecurityOrigin::createUnique())
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, m_eventLoop(EmptyEventLoop::create(vm))
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, m_eventLoopTaskGroup(makeUnique<EventLoopTaskGroup>(m_eventLoop))
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{
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}
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void addMessage(MessageSource, MessageLevel, const String&, const String&, unsigned, unsigned, RefPtr<Inspector::ScriptCallStack>&&, JSC::JSGlobalObject* = nullptr, unsigned long = 0) final { }
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void logExceptionToConsole(const String&, const String&, int, int, RefPtr<Inspector::ScriptCallStack>&&) final { };
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void refScriptExecutionContext() final { ref(); };
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void derefScriptExecutionContext() final { deref(); };
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const Settings::Values& settingsValues() const final { return m_settingsValues; }
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class EmptyEventLoop final : public EventLoop {
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public:
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static Ref<EmptyEventLoop> create(JSC::VM& vm)
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{
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return adoptRef(*new EmptyEventLoop(vm));
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}
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MicrotaskQueue& microtaskQueue() final { return m_queue; };
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private:
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explicit EmptyEventLoop(JSC::VM& vm)
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: m_queue(MicrotaskQueue(vm))
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{
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}
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void scheduleToRun() final { ASSERT_NOT_REACHED(); }
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bool isContextThread() const final { return true; }
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MicrotaskQueue m_queue;
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};
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Ref<JSC::VM> m_vm;
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Ref<SecurityOrigin> m_origin;
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URL m_url;
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Ref<EmptyEventLoop> m_eventLoop;
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std::unique_ptr<EventLoopTaskGroup> m_eventLoopTaskGroup;
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Settings::Values m_settingsValues;
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};
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} // namespace WebCore
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