mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
120 lines
4.2 KiB
C++
120 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* ***** 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 C++ pointer array template.
|
|
*
|
|
* The Initial Developer of the Original Code is Mozilla Foundation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2006
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Jonas Sicking <jonas@sicking.cc>
|
|
*
|
|
* 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 ***** */
|
|
|
|
|
|
#ifndef nsTPtrArray_h__
|
|
#define nsTPtrArray_h__
|
|
|
|
#include "nsTArray.h"
|
|
|
|
//
|
|
// The templatized array class for storing pointers. The class is based on
|
|
// nsTArray and has all the features of that class, in addition to an
|
|
// implementation of SafeElementAt that returns null for out of bounds access
|
|
//
|
|
template<class E>
|
|
class nsTPtrArray : public nsTArray<E*> {
|
|
public:
|
|
typedef nsTPtrArray<E> self_type;
|
|
typedef nsTArray<E*> base_type;
|
|
typedef typename base_type::size_type size_type;
|
|
typedef typename base_type::elem_type elem_type;
|
|
typedef typename base_type::index_type index_type;
|
|
|
|
//
|
|
// Initialization methods
|
|
//
|
|
|
|
nsTPtrArray() {}
|
|
|
|
// Initialize this array and pre-allocate some number of elements.
|
|
explicit nsTPtrArray(size_type capacity) {
|
|
SetCapacity(capacity);
|
|
}
|
|
|
|
// The array's copy-constructor performs a 'deep' copy of the given array.
|
|
// @param other The array object to copy.
|
|
nsTPtrArray(const self_type& other) {
|
|
AppendElements(other);
|
|
}
|
|
|
|
//
|
|
// Accessor methods
|
|
//
|
|
|
|
// Forward SafeElementAt to avoid shadowing (and warnings thereof)
|
|
elem_type& SafeElementAt(index_type i, elem_type& def) {
|
|
return base_type::SafeElementAt(i, def);
|
|
}
|
|
const elem_type& SafeElementAt(index_type i, const elem_type& def) const {
|
|
return base_type::SafeElementAt(i, def);
|
|
}
|
|
|
|
// This method provides direct access to the i'th element of the array in
|
|
// a bounds safe manner. If the requested index is out of bounds null is
|
|
// returned.
|
|
// @param i The index of an element in the array.
|
|
elem_type SafeElementAt(index_type i) const {
|
|
return SafeElementAt(i, nsnull);
|
|
}
|
|
};
|
|
|
|
template<class E, PRUint32 N>
|
|
class nsAutoTPtrArray : public nsTPtrArray<E> {
|
|
public:
|
|
typedef nsTPtrArray<E> base_type;
|
|
typedef typename base_type::Header Header;
|
|
typedef typename base_type::elem_type elem_type;
|
|
|
|
nsAutoTPtrArray() {
|
|
base_type::mHdr = reinterpret_cast<Header*>(&mAutoBuf);
|
|
base_type::mHdr->mLength = 0;
|
|
base_type::mHdr->mCapacity = N;
|
|
base_type::mHdr->mIsAutoArray = 1;
|
|
|
|
NS_ASSERTION(base_type::GetAutoArrayBuffer() ==
|
|
reinterpret_cast<Header*>(&mAutoBuf),
|
|
"GetAutoArrayBuffer needs to be fixed");
|
|
}
|
|
|
|
protected:
|
|
char mAutoBuf[sizeof(Header) + N * sizeof(elem_type)];
|
|
};
|
|
|
|
#endif // nsTPtrArray_h__
|