From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp | 162 +++++++++++++++++++++++++++++ 1 file changed, 162 insertions(+) create mode 100644 src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp (limited to 'src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp') diff --git a/src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp b/src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp new file mode 100644 index 00000000..9a270223 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/ds/nsCOMArray.cpp @@ -0,0 +1,162 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* ***** 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 a COM aware array class. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corp. + * Portions created by the Initial Developer are Copyright (C) 2002 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Alec Flett + * + * 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 "nsCOMArray.h" +#include "nsCOMPtr.h" + +PR_STATIC_CALLBACK(PRBool) ReleaseObjects(void* aElement, void*); + +// implementations of non-trivial methods in nsCOMArray_base + +// copy constructor - we can't just memcpy here, because +// we have to make sure we own our own array buffer, and that each +// object gets another AddRef() +nsCOMArray_base::nsCOMArray_base(const nsCOMArray_base& aOther) +{ + // make sure we do only one allocation + mArray.SizeTo(aOther.Count()); + AppendObjects(aOther); +} + +nsCOMArray_base::~nsCOMArray_base() +{ + PRInt32 count = Count(), i; + for (i = 0; i < count; ++i) { + nsISupports* obj = ObjectAt(i); + NS_IF_RELEASE(obj); + } +} + +PRInt32 +nsCOMArray_base::IndexOfObject(nsISupports* aObject) const { + NS_ENSURE_TRUE(aObject, -1); + nsCOMPtr supports = do_QueryInterface(aObject); + NS_ENSURE_TRUE(supports, -1); + + PRInt32 i, count; + PRInt32 retval = -1; + count = mArray.Count(); + for (i = 0; i < count; ++i) { + nsCOMPtr arrayItem = + do_QueryInterface(NS_REINTERPRET_CAST(nsISupports*,mArray.ElementAt(i))); + if (arrayItem == supports) { + retval = i; + break; + } + } + return retval; +} + +PRBool +nsCOMArray_base::InsertObjectAt(nsISupports* aObject, PRInt32 aIndex) { + PRBool result = mArray.InsertElementAt(aObject, aIndex); + if (result) + NS_IF_ADDREF(aObject); + return result; +} + +PRBool +nsCOMArray_base::InsertObjectsAt(const nsCOMArray_base& aObjects, PRInt32 aIndex) { + PRBool result = mArray.InsertElementsAt(aObjects.mArray, aIndex); + if (result) { + // need to addref all these + PRInt32 count = aObjects.Count(); + for (PRInt32 i = 0; i < count; ++i) { + NS_IF_ADDREF(aObjects.ObjectAt(i)); + } + } + return result; +} + +PRBool +nsCOMArray_base::ReplaceObjectAt(nsISupports* aObject, PRInt32 aIndex) +{ + // its ok if oldObject is null here + nsISupports *oldObject = + NS_REINTERPRET_CAST(nsISupports*, mArray.SafeElementAt(aIndex)); + + PRBool result = mArray.ReplaceElementAt(aObject, aIndex); + + // ReplaceElementAt could fail, such as if the array grows + // so only release the existing object if the replacement succeeded + if (result) { + // Make sure to addref first, in case aObject == oldObject + NS_IF_ADDREF(aObject); + NS_IF_RELEASE(oldObject); + } + return result; +} + +PRBool +nsCOMArray_base::RemoveObject(nsISupports *aObject) +{ + PRBool result = mArray.RemoveElement(aObject); + if (result) + NS_IF_RELEASE(aObject); + return result; +} + +PRBool +nsCOMArray_base::RemoveObjectAt(PRInt32 aIndex) +{ + nsISupports* element = ObjectAt(aIndex); + if (element) { + PRBool result = mArray.RemoveElementAt(aIndex); + if (result) + NS_IF_RELEASE(element); + return result; + } + return PR_FALSE; +} + +// useful for destructors +PRBool +ReleaseObjects(void* aElement, void*) +{ + nsISupports* element = NS_STATIC_CAST(nsISupports*, aElement); + NS_IF_RELEASE(element); + return PR_TRUE; +} + +void +nsCOMArray_base::Clear() +{ + mArray.EnumerateForwards(ReleaseObjects, nsnull); + mArray.Clear(); +} + -- cgit v1.2.3