72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla.
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*
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* The Initial Developer of the Original Code is IBM Corporation.
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* Portions created by IBM Corporation are Copyright (C) 2003
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* IBM Corporation. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@meer.net>
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* Johnny Stenback <jst@mozilla.jstenback.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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NS_COM nsTAdoptingString_CharT&
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nsTAdoptingString_CharT::operator=( const self_type& str )
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{
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// This'll violate the constness of this argument, that's just
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// the nature of this class...
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self_type* mutable_str = NS_CONST_CAST(self_type*, &str);
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if (str.mFlags & F_OWNED)
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{
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// We want to do what Adopt() does, but without actually incrementing
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// the Adopt count. Note that we can be a little more straightforward
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// about this than Adopt() is, because we know that str.mData is
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// non-null. Should we be able to assert that str is not void here?
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NS_ASSERTION(str.mData, "String with null mData?");
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Finalize();
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mData = str.mData;
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mLength = str.mLength;
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SetDataFlags(F_TERMINATED | F_OWNED);
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// Make str forget the buffer we just took ownership of.
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new (mutable_str) self_type();
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}
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else
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{
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Assign(str);
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mutable_str->Truncate();
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}
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return *this;
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}
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