xref: /external/chromium_org/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptorHash.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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#ifndef CustomElementDescriptorHash_h
#define CustomElementDescriptorHash_h

#include "core/dom/custom/CustomElementDescriptor.h"
#include "wtf/HashFunctions.h"
#include "wtf/HashTraits.h"
#include "wtf/text/AtomicStringHash.h"

namespace blink {

struct CustomElementDescriptorHash {
    static unsigned hash(const CustomElementDescriptor& descriptor)
    {
        return WTF::pairIntHash(AtomicStringHash::hash(descriptor.type()), WTF::pairIntHash(AtomicStringHash::hash(descriptor.namespaceURI()), AtomicStringHash::hash(descriptor.localName())));
    }

    static bool equal(const CustomElementDescriptor& a, const CustomElementDescriptor& b)
    {
        return a == b;
    }

    static const bool safeToCompareToEmptyOrDeleted = true;
};

} // namespace blink

namespace WTF {

template<>
struct HashTraits<blink::CustomElementDescriptor> : SimpleClassHashTraits<blink::CustomElementDescriptor> {
    static const bool emptyValueIsZero = HashTraits<AtomicString>::emptyValueIsZero;
};

} // namespace WTF

#endif // CustomElementDescriptorHash