nsHtml5DependentUTF16Buffer.cpp

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/* 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 "nsHtml5DependentUTF16Buffer.h"

nsHtml5DependentUTF16Buffer::nsHtml5DependentUTF16Buffer(

    const nsAString& aToWrap)

    : nsHtml5UTF16Buffer(const_cast<char16_t*>(aToWrap.BeginReading()),

                         aToWrap.Length()) {

  MOZ_COUNT_CTOR(nsHtml5DependentUTF16Buffer);

nsHtml5DependentUTF16Buffer::~nsHtml5DependentUTF16Buffer() {

  MOZ_COUNT_DTOR(nsHtml5DependentUTF16Buffer);

already_AddRefed<nsHtml5OwningUTF16Buffer>

nsHtml5DependentUTF16Buffer::FalliblyCopyAsOwningBuffer() {

  int32_t newLength = getEnd() - getStart();

  RefPtr<nsHtml5OwningUTF16Buffer> newObj =

      nsHtml5OwningUTF16Buffer::FalliblyCreate(newLength);

  if (!newObj) {

    return nullptr;

  newObj->setEnd(newLength);

  memcpy(newObj->getBuffer(), getBuffer() + getStart(),

         newLength * sizeof(char16_t));

  return newObj.forget();