1 /* This Source Code Form is subject to the terms of the Mozilla Public
2  * License, v. 2.0. If a copy of the MPL was not distributed with this
3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4 
5 #include "nsHtml5DependentUTF16Buffer.h"
6 
nsHtml5DependentUTF16Buffer(const nsAString & aToWrap)7 nsHtml5DependentUTF16Buffer::nsHtml5DependentUTF16Buffer(const nsAString& aToWrap)
8   : nsHtml5UTF16Buffer(const_cast<char16_t*> (aToWrap.BeginReading()),
9                        aToWrap.Length())
10 {
11   MOZ_COUNT_CTOR(nsHtml5DependentUTF16Buffer);
12 }
13 
~nsHtml5DependentUTF16Buffer()14 nsHtml5DependentUTF16Buffer::~nsHtml5DependentUTF16Buffer()
15 {
16   MOZ_COUNT_DTOR(nsHtml5DependentUTF16Buffer);
17 }
18 
19 already_AddRefed<nsHtml5OwningUTF16Buffer>
FalliblyCopyAsOwningBuffer()20 nsHtml5DependentUTF16Buffer::FalliblyCopyAsOwningBuffer()
21 {
22   int32_t newLength = getEnd() - getStart();
23   RefPtr<nsHtml5OwningUTF16Buffer> newObj =
24     nsHtml5OwningUTF16Buffer::FalliblyCreate(newLength);
25   if (!newObj) {
26     return nullptr;
27   }
28   newObj->setEnd(newLength);
29   memcpy(newObj->getBuffer(),
30          getBuffer() + getStart(),
31          newLength * sizeof(char16_t));
32   return newObj.forget();
33 }
34