gecko-dev/parser/html/nsHtml5DependentUTF16Buffer.cpp
2012-07-30 17:20:58 +03:00

34 lines
1.0 KiB
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 "nsHtml5DependentUTF16Buffer.h"
nsHtml5DependentUTF16Buffer::nsHtml5DependentUTF16Buffer(const nsAString& aToWrap)
: nsHtml5UTF16Buffer(const_cast<PRUnichar*> (aToWrap.BeginReading()),
aToWrap.Length())
{
MOZ_COUNT_CTOR(nsHtml5DependentUTF16Buffer);
}
nsHtml5DependentUTF16Buffer::~nsHtml5DependentUTF16Buffer()
{
MOZ_COUNT_DTOR(nsHtml5DependentUTF16Buffer);
}
already_AddRefed<nsHtml5OwningUTF16Buffer>
nsHtml5DependentUTF16Buffer::FalliblyCopyAsOwningBuffer()
{
PRInt32 newLength = getEnd() - getStart();
nsRefPtr<nsHtml5OwningUTF16Buffer> newObj =
nsHtml5OwningUTF16Buffer::FalliblyCreate(newLength);
if (!newObj) {
return nullptr;
}
newObj->setEnd(newLength);
memcpy(newObj->getBuffer(),
getBuffer() + getStart(),
newLength * sizeof(PRUnichar));
return newObj.forget();
}