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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_ShadowParts_h
#define mozilla_ShadowParts_h
#include "nsAtom.h"
#include "nsTHashtable.h"
#include "nsClassHashtable.h"
#include "nsRefPtrHashtable.h"
#include "nsStringFwd.h"
namespace mozilla {
class ShadowParts final {
public:
ShadowParts(ShadowParts&&) = default;
ShadowParts(const ShadowParts&) = delete;
static ShadowParts Parse(const nsAString&);
using PartList = AutoTArray<RefPtr<nsAtom>, 1>;
PartList* Get(nsAtom* aName) const { return mMappings.Get(aName); }
nsAtom* GetReverse(nsAtom* aName) const {
return mReverseMappings.GetWeak(aName);
}
#ifdef DEBUG
void Dump() const;
#endif
private:
ShadowParts() = default;
// TODO(emilio): If the two hashtables take a lot of memory we should consider
// just using an nsTArray<Pair<>> or something.
nsClassHashtable<nsRefPtrHashKey<nsAtom>, PartList> mMappings;
nsRefPtrHashtable<nsRefPtrHashKey<nsAtom>, nsAtom> mReverseMappings;
};
} // namespace mozilla
#endif // mozilla_ShadowParts_h