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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/. */
/* Definitions for nsAtom-related hash keys */
#ifndef nsAtomHashKeys_h
#define nsAtomHashKeys_h
#include "nsAtom.h"
#include "nsHashKeys.h"
// TODO(emilio): Consider removing this and specializing AddToHash instead
// once bug 1849386 is fixed.
// Hash keys suitable for use in nsTHashTable.
struct nsAtomHashKey : public nsRefPtrHashKey<nsAtom> {
using nsRefPtrHashKey::nsRefPtrHashKey;
static PLDHashNumber HashKey(KeyTypePointer aKey) {
return MOZ_LIKELY(aKey) ? aKey->hash() : 0;
}
};
struct nsWeakAtomHashKey : public nsPtrHashKey<nsAtom> {
using nsPtrHashKey::nsPtrHashKey;
static PLDHashNumber HashKey(KeyTypePointer aKey) {
return nsAtomHashKey::HashKey(aKey);
}
};
// Hash keys suitable for use in mozilla::HashMap.
namespace mozilla {
struct AtomHashKey {
RefPtr<nsAtom> mKey;
explicit AtomHashKey(nsAtom* aAtom) : mKey(aAtom) {}
using Lookup = nsAtom*;
static HashNumber hash(const Lookup& aKey) { return aKey->hash(); }
static bool match(const AtomHashKey& aFirst, const Lookup& aSecond) {
return aFirst.mKey == aSecond;
}
};
} // namespace mozilla
#endif // nsAtomHashKeys_h
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