[Experimental] CSSSerializer Proof-of-concept

third_party/WebKit/Source/core/css/StylePropertySet.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 17 matching lines @@
 #include "core/css/PropertySetCSSStyleDeclaration.h"
 #include "core/css/parser/CSSParserMode.h"
 #include "wtf/ListHashSet.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 #include <algorithm>
 
 namespace blink {
 
+class CSSDeserializeStream;
 class CSSStyleDeclaration;
+class CSSSerializeStream;
 class ImmutableStylePropertySet;
 class MutableStylePropertySet;
 class StyleSheetContents;
 
 class CORE_EXPORT StylePropertySet : public RefCountedWillBeGarbageCollectedFinalized<StylePropertySet> {
     WTF_MAKE_NONCOPYABLE(StylePropertySet);
     friend class PropertyReference;
 public:
 
 #if ENABLE(OILPAN)
@@ skipping 69 matching lines @@
     PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> immutableCopyIfNeeded() const;
 
     PassRefPtrWillBeRawPtr<MutableStylePropertySet> copyPropertiesInSet(const Vector<CSSPropertyID>&) const;
 
     String asText() const;
 
     bool isMutable() const { return m_isMutable; }
 
     bool hasFailedOrCanceledSubresources() const;
 
+    void serialize(CSSSerializeStream*) const;
+
     static unsigned averageSizeInBytes();
 
 #ifndef NDEBUG
     void showStyle();
 #endif
 
     bool propertyMatches(CSSPropertyID, const CSSValue*) const;
 
     DECLARE_TRACE();
     DEFINE_INLINE_TRACE_AFTER_DISPATCH() { }
@@ skipping 18 matching lines @@
     mutable unsigned m_isMutable : 1;
     unsigned m_arraySize : 28;
 
     friend class PropertySetCSSStyleDeclaration;
 };
 
 class CORE_EXPORT ImmutableStylePropertySet : public StylePropertySet {
 public:
     ~ImmutableStylePropertySet();
     static PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> create(const CSSProperty* properties, unsigned count, CSSParserMode);
+    static PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> deserialize(CSSDeserializeStream*);
 
     unsigned propertyCount() const { return m_arraySize; }
 
     const RawPtrWillBeMember<CSSValue>* valueArray() const;
     const StylePropertyMetadata* metadataArray() const;
 
     template<typename T> // CSSPropertyID or AtomicString
     int findPropertyIndex(T property) const;
 
+    void serializeAfterDispatch(CSSSerializeStream*) const;
+
     DECLARE_TRACE_AFTER_DISPATCH();
 
     void* operator new(std::size_t, void* location)
     {
         return location;
     }
 
     void* m_storage;
 
 private:
     ImmutableStylePropertySet(const CSSProperty*, unsigned count, CSSParserMode);
+    ImmutableStylePropertySet(CSSDeserializeStream*, unsigned count, CSSParserMode);
 };
 
 inline const RawPtrWillBeMember<CSSValue>* ImmutableStylePropertySet::valueArray() const
 {
     return reinterpret_cast<const RawPtrWillBeMember<CSSValue>*>(const_cast<const void**>(&(this->m_storage)));
 }
 
 inline const StylePropertyMetadata* ImmutableStylePropertySet::metadataArray() const
 {
     return reinterpret_cast<const StylePropertyMetadata*>(&reinterpret_cast<const char*>(&(this->m_storage))[m_arraySize * sizeof(RawPtrWillBeMember<CSSValue>)]);
@@ skipping 117 matching lines @@
 inline int StylePropertySet::findPropertyIndex(T property) const
 {
     if (m_isMutable)
         return toMutableStylePropertySet(this)->findPropertyIndex(property);
     return toImmutableStylePropertySet(this)->findPropertyIndex(property);
 }
 
 } // namespace blink
 
 #endif // StylePropertySet_h