103 lines
3.3 KiB
C++
103 lines
3.3 KiB
C++
/*
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* Copyright (C) 2004 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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#ifndef RUNTIME_ROOT_H_
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#define RUNTIME_ROOT_H_
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#include <JavaScriptCore/Strong.h>
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#include <JavaScriptCore/Weak.h>
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#include <JavaScriptCore/WeakInlines.h>
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#include <wtf/Forward.h>
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#include <wtf/HashCountedSet.h>
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#include <wtf/HashSet.h>
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#include <wtf/Noncopyable.h>
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#include <wtf/RefCounted.h>
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namespace JSC {
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class Interpreter;
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class JSGlobalObject;
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namespace Bindings {
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class RootObject;
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class RuntimeObject;
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typedef HashCountedSet<JSObject*> ProtectCountSet;
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extern RootObject* findProtectingRootObject(JSObject*);
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extern RootObject* findRootObject(JSGlobalObject*);
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class RootObject : public RefCounted<RootObject>, private JSC::WeakHandleOwner {
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friend class JavaJSObject;
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public:
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WEBCORE_EXPORT virtual ~RootObject();
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static Ref<RootObject> create(const void* nativeHandle, JSGlobalObject*);
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bool isValid() { return m_isValid; }
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void invalidate();
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void gcProtect(JSObject*);
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void gcUnprotect(JSObject*);
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bool gcIsProtected(JSObject*);
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const void* nativeHandle() const;
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WEBCORE_EXPORT JSGlobalObject* globalObject() const;
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void updateGlobalObject(JSGlobalObject*);
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void addRuntimeObject(VM&, RuntimeObject*);
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void removeRuntimeObject(RuntimeObject*);
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struct InvalidationCallback {
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virtual void operator()(RootObject*) = 0;
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virtual ~InvalidationCallback();
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};
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void addInvalidationCallback(InvalidationCallback* callback) { m_invalidationCallbacks.add(callback); }
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private:
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RootObject(const void* nativeHandle, JSGlobalObject*);
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// WeakHandleOwner
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void finalize(JSC::Handle<JSC::Unknown>, void* context) override;
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bool m_isValid;
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const void* m_nativeHandle;
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Strong<JSGlobalObject> m_globalObject;
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ProtectCountSet m_protectCountSet;
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HashMap<RuntimeObject*, JSC::Weak<RuntimeObject>> m_runtimeObjects; // We use a map to implement a set.
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HashSet<InvalidationCallback*> m_invalidationCallbacks;
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};
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} // namespace Bindings
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} // namespace JSC
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#endif // RUNTIME_ROOT_H_
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