111 lines
4.0 KiB
C++
111 lines
4.0 KiB
C++
/*
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* Copyright (C) 2008, 2014 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 "ConcurrentJSLock.h"
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#include "RuntimeType.h"
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#include "StructureSet.h"
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#include <wtf/HashSet.h>
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#include <wtf/JSONValues.h>
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#include <wtf/RefCounted.h>
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#include <wtf/ThreadSafeRefCounted.h>
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#include <wtf/text/WTFString.h>
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#include <wtf/Vector.h>
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namespace Inspector {
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namespace Protocol {
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namespace Runtime {
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class StructureDescription;
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class TypeSet;
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}
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}
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}
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namespace JSC {
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class StructureShape : public RefCounted<StructureShape> {
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friend class TypeSet;
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public:
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StructureShape();
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static Ref<StructureShape> create() { return adoptRef(*new StructureShape); }
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String propertyHash();
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void markAsFinal();
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void addProperty(UniquedStringImpl&);
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String stringRepresentation();
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String toJSONString() const;
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Ref<Inspector::Protocol::Runtime::StructureDescription> inspectorRepresentation();
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void setConstructorName(String name) { m_constructorName = (name.isEmpty() ? "Object"_s : name); }
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String constructorName() { return m_constructorName; }
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void setProto(Ref<StructureShape>&& shape) { m_proto = WTFMove(shape); }
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void enterDictionaryMode();
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private:
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static String leastCommonAncestor(const Vector<Ref<StructureShape>>&);
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static Ref<StructureShape> merge(Ref<StructureShape>&&, Ref<StructureShape>&&);
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bool hasSamePrototypeChain(const StructureShape&);
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bool m_final;
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bool m_isInDictionaryMode;
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HashSet<RefPtr<UniquedStringImpl>, IdentifierRepHash> m_fields;
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HashSet<RefPtr<UniquedStringImpl>, IdentifierRepHash> m_optionalFields;
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RefPtr<StructureShape> m_proto;
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std::unique_ptr<String> m_propertyHash;
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String m_constructorName;
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};
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class TypeSet : public ThreadSafeRefCounted<TypeSet> {
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public:
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static Ref<TypeSet> create() { return adoptRef(*new TypeSet); }
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TypeSet();
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void addTypeInformation(RuntimeType, RefPtr<StructureShape>&&, Structure*, bool sawPolyProtoStructure);
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void invalidateCache(VM&);
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String dumpTypes() const;
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String displayName() const;
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Ref<JSON::ArrayOf<Inspector::Protocol::Runtime::StructureDescription>> allStructureRepresentations() const;
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String toJSONString() const;
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bool isOverflown() const { return m_isOverflown; }
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String leastCommonAncestor() const;
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Ref<Inspector::Protocol::Runtime::TypeSet> inspectorTypeSet() const;
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bool isEmpty() const { return m_seenTypes == TypeNothing; }
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bool doesTypeConformTo(RuntimeTypeMask test) const;
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RuntimeTypeMask seenTypes() const { return m_seenTypes; }
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StructureSet structureSet(const ConcurrentJSLocker&) const { return m_structureSet; }
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ConcurrentJSLock m_lock;
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private:
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bool m_isOverflown;
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RuntimeTypeMask m_seenTypes;
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Vector<Ref<StructureShape>> m_structureHistory;
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StructureSet m_structureSet;
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};
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} // namespace JSC
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