71 lines
2.7 KiB
C++
71 lines
2.7 KiB
C++
/*
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* Copyright (C) 2010 Google, Inc. All Rights Reserved.
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* Copyright (C) 2011-2017 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 "PendingScriptClient.h"
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#include "Timer.h"
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#include <wtf/HashSet.h>
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#include <wtf/Vector.h>
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namespace WebCore {
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class Document;
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class ScriptElement;
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class LoadableScript;
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class ScriptRunner : private PendingScriptClient {
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WTF_MAKE_NONCOPYABLE(ScriptRunner); WTF_MAKE_FAST_ALLOCATED;
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public:
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explicit ScriptRunner(Document&);
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~ScriptRunner();
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enum ExecutionType { ASYNC_EXECUTION, IN_ORDER_EXECUTION };
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void queueScriptForExecution(ScriptElement&, LoadableScript&, ExecutionType);
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bool hasPendingScripts() const { return !m_scriptsToExecuteSoon.isEmpty() || !m_scriptsToExecuteInOrder.isEmpty() || !m_pendingAsyncScripts.isEmpty(); }
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void suspend();
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void resume();
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void notifyScriptReady(ScriptElement*, ExecutionType);
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void didBeginYieldingParser() { suspend(); }
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void didEndYieldingParser() { resume(); }
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void documentFinishedParsing();
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private:
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void timerFired();
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void notifyFinished(PendingScript&) override;
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Document& m_document;
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Vector<Ref<PendingScript>> m_scriptsToExecuteInOrder;
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Vector<RefPtr<PendingScript>> m_scriptsToExecuteSoon; // http://www.whatwg.org/specs/web-apps/current-work/#set-of-scripts-that-will-execute-as-soon-as-possible
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HashSet<Ref<PendingScript>> m_pendingAsyncScripts;
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Timer m_timer;
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};
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}
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