forked from mirrors/gecko-dev
d03c3ae7d8
I need to check whether we can remove the recently used atom stuff, but this should be uncontroversial. Differential Revision: https://phabricator.services.mozilla.com/D191853
30 lines
989 B
C++
30 lines
989 B
C++
/* 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/. */
|
|
|
|
#include "nsHtml5AtomTable.h"
|
|
#include "nsThreadUtils.h"
|
|
|
|
nsHtml5AtomTable::nsHtml5AtomTable() : mRecentlyUsedParserAtoms{} {
|
|
#ifdef DEBUG
|
|
mPermittedLookupEventTarget = mozilla::GetCurrentSerialEventTarget();
|
|
#endif
|
|
}
|
|
|
|
nsHtml5AtomTable::~nsHtml5AtomTable() = default;
|
|
|
|
nsAtom* nsHtml5AtomTable::GetAtom(const nsAString& aKey) {
|
|
MOZ_ASSERT(mPermittedLookupEventTarget->IsOnCurrentThread());
|
|
uint32_t hash = mozilla::HashString(aKey);
|
|
uint32_t index = hash % RECENTLY_USED_PARSER_ATOMS_SIZE;
|
|
if (nsAtom* atom = mRecentlyUsedParserAtoms[index]) {
|
|
if (atom->hash() == hash && atom->Equals(aKey)) {
|
|
return atom;
|
|
}
|
|
}
|
|
|
|
RefPtr<nsAtom> atom = NS_Atomize(aKey, hash);
|
|
nsAtom* ret = atom.get();
|
|
mRecentlyUsedParserAtoms[index] = std::move(atom);
|
|
return ret;
|
|
}
|