michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsHtml5DependentUTF16Buffer.h"
michael@0: 
michael@0: nsHtml5DependentUTF16Buffer::nsHtml5DependentUTF16Buffer(const nsAString& aToWrap)
michael@0:   : nsHtml5UTF16Buffer(const_cast<char16_t*> (aToWrap.BeginReading()),
michael@0:                        aToWrap.Length())
michael@0: {
michael@0:   MOZ_COUNT_CTOR(nsHtml5DependentUTF16Buffer);
michael@0: }
michael@0: 
michael@0: nsHtml5DependentUTF16Buffer::~nsHtml5DependentUTF16Buffer()
michael@0: {
michael@0:   MOZ_COUNT_DTOR(nsHtml5DependentUTF16Buffer);
michael@0: }
michael@0: 
michael@0: already_AddRefed<nsHtml5OwningUTF16Buffer>
michael@0: nsHtml5DependentUTF16Buffer::FalliblyCopyAsOwningBuffer()
michael@0: {
michael@0:   int32_t newLength = getEnd() - getStart();
michael@0:   nsRefPtr<nsHtml5OwningUTF16Buffer> newObj =
michael@0:     nsHtml5OwningUTF16Buffer::FalliblyCreate(newLength);
michael@0:   if (!newObj) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   newObj->setEnd(newLength);
michael@0:   memcpy(newObj->getBuffer(),
michael@0:          getBuffer() + getStart(),
michael@0:          newLength * sizeof(char16_t));
michael@0:   return newObj.forget();
michael@0: }