pjs/parser/html/nsHtml5DependentUTF16Buffer...

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2.5 KiB
C++

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Dependent UTF-16 Buffer code.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Henri Sivonen <hsivonen@iki.fi>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#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 nsnull;
}
newObj->setEnd(newLength);
memcpy(newObj->getBuffer(),
getBuffer() + getStart(),
newLength * sizeof(PRUnichar));
return newObj.forget();
}