forked from mirrors/gecko-dev
65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsHtml5AtomTable.h"
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#include "nsHtml5Atom.h"
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#include "nsThreadUtils.h"
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nsHtml5AtomEntry::nsHtml5AtomEntry(KeyTypePointer aStr)
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: nsStringHashKey(aStr)
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, mAtom(new nsHtml5Atom(*aStr))
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{
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}
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nsHtml5AtomEntry::nsHtml5AtomEntry(const nsHtml5AtomEntry& aOther)
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: nsStringHashKey(aOther)
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, mAtom(nullptr)
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{
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NS_NOTREACHED("nsHtml5AtomTable is broken and tried to copy an entry");
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}
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nsHtml5AtomEntry::~nsHtml5AtomEntry()
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{
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}
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nsHtml5AtomTable::nsHtml5AtomTable()
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: mRecentlyUsedParserAtoms{}
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{
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#ifdef DEBUG
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mPermittedLookupEventTarget = mozilla::GetCurrentThreadSerialEventTarget();
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#endif
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}
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nsHtml5AtomTable::~nsHtml5AtomTable()
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{
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}
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nsIAtom*
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nsHtml5AtomTable::GetAtom(const nsAString& aKey)
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{
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#ifdef DEBUG
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{
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MOZ_ASSERT(mPermittedLookupEventTarget->IsOnCurrentThread());
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}
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#endif
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uint32_t index = mozilla::HashString(aKey) % RECENTLY_USED_PARSER_ATOMS_SIZE;
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nsIAtom* cachedAtom = mRecentlyUsedParserAtoms[index];
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if (cachedAtom && cachedAtom->Equals(aKey)) {
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return cachedAtom;
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}
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nsIAtom* atom = NS_GetStaticAtom(aKey);
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if (atom) {
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mRecentlyUsedParserAtoms[index] = atom;
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return atom;
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}
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nsHtml5AtomEntry* entry = mTable.PutEntry(aKey);
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if (!entry) {
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return nullptr;
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}
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mRecentlyUsedParserAtoms[index] = entry->GetAtom();
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return entry->GetAtom();
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}
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