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diff --git a/src/libs/xpcom18a4/xpcom/ds/nsArray.cpp b/src/libs/xpcom18a4/xpcom/ds/nsArray.cpp
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+/* -*- 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 XPCOM Array implementation.
+ *
+ * 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 <alecf@netscape.com>
+ *
+ * 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 "nsArray.h"
+#include "nsArrayEnumerator.h"
+#include "nsWeakReference.h"
+
+// used by IndexOf()
+struct findIndexOfClosure
+{
+ nsISupports *targetElement;
+ PRUint32 startIndex;
+ PRUint32 resultIndex;
+};
+
+PR_STATIC_CALLBACK(PRBool) FindElementCallback(void* aElement, void* aClosure);
+
+
+NS_IMPL_ISUPPORTS2(nsArray, nsIArray, nsIMutableArray)
+
+nsArray::~nsArray()
+{
+ Clear();
+}
+
+NS_IMETHODIMP
+nsArray::GetLength(PRUint32* aLength)
+{
+ *aLength = mArray.Count();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsArray::QueryElementAt(PRUint32 aIndex,
+ const nsIID& aIID,
+ void ** aResult)
+{
+ nsISupports * obj = mArray.ObjectAt(aIndex);
+ if (!obj) return NS_ERROR_UNEXPECTED;
+
+ // no need to worry about a leak here, because ObjectAt() doesn't
+ // addref its result
+ return obj->QueryInterface(aIID, aResult);
+}
+
+NS_IMETHODIMP
+nsArray::IndexOf(PRUint32 aStartIndex, nsISupports* aElement,
+ PRUint32* aResult)
+{
+ // optimize for the common case by forwarding to mArray
+ if (aStartIndex == 0) {
+ *aResult = mArray.IndexOf(aElement);
+ if (*aResult == -1)
+ return NS_ERROR_FAILURE;
+ return NS_OK;
+ }
+
+ findIndexOfClosure closure = { aElement, aStartIndex, 0 };
+ PRBool notFound = mArray.EnumerateForwards(FindElementCallback, &closure);
+ if (notFound)
+ return NS_ERROR_FAILURE;
+
+ *aResult = closure.resultIndex;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsArray::Enumerate(nsISimpleEnumerator **aResult)
+{
+ return NS_NewArrayEnumerator(aResult, NS_STATIC_CAST(nsIArray*, this));
+}
+
+// nsIMutableArray implementation
+
+NS_IMETHODIMP
+nsArray::AppendElement(nsISupports* aElement, PRBool aWeak)
+{
+ PRBool result;
+ if (aWeak) {
+ nsCOMPtr<nsISupports> elementRef =
+ getter_AddRefs(NS_STATIC_CAST(nsISupports*,
+ NS_GetWeakReference(aElement)));
+ NS_ASSERTION(elementRef, "AppendElement: Trying to use weak references on an object that doesn't support it");
+ if (!elementRef)
+ return NS_ERROR_FAILURE;
+ result = mArray.AppendObject(elementRef);
+ }
+
+ else {
+ // add the object directly
+ result = mArray.AppendObject(aElement);
+ }
+ return result ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsArray::RemoveElementAt(PRUint32 aIndex)
+{
+ PRBool result = mArray.RemoveObjectAt(aIndex);
+ return result ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsArray::InsertElementAt(nsISupports* aElement, PRUint32 aIndex, PRBool aWeak)
+{
+ nsCOMPtr<nsISupports> elementRef;
+ if (aWeak) {
+ elementRef =
+ getter_AddRefs(NS_STATIC_CAST(nsISupports*,
+ NS_GetWeakReference(aElement)));
+ NS_ASSERTION(elementRef, "InsertElementAt: Trying to use weak references on an object that doesn't support it");
+ if (!elementRef)
+ return NS_ERROR_FAILURE;
+ } else {
+ elementRef = aElement;
+ }
+ PRBool result = mArray.InsertObjectAt(elementRef, aIndex);
+ return result ? NS_OK : NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsArray::Clear()
+{
+ mArray.Clear();
+ return NS_OK;
+}
+
+//
+// static helper routines
+//
+PRBool
+FindElementCallback(void *aElement, void* aClosure)
+{
+ findIndexOfClosure* closure =
+ NS_STATIC_CAST(findIndexOfClosure*, aClosure);
+
+ nsISupports* element =
+ NS_STATIC_CAST(nsISupports*, aElement);
+
+ // don't start searching until we're past the startIndex
+ if (closure->resultIndex >= closure->startIndex &&
+ element == closure->targetElement) {
+ return PR_FALSE; // stop! We found it
+ }
+ closure->resultIndex++;
+
+ return PR_TRUE;
+}
+
+//
+// do_QueryElementAt helper stuff
+//
+nsresult
+nsQueryArrayElementAt::operator()(const nsIID& aIID, void** aResult) const
+ {
+ nsresult status = mArray
+ ? mArray->QueryElementAt(mIndex, aIID, aResult)
+ : NS_ERROR_NULL_POINTER;
+
+ if (mErrorPtr)
+ *mErrorPtr = status;
+
+ return status;
+ }
+
+//
+// exported constructor routines
+//
+nsresult
+NS_NewArray(nsIMutableArray** aResult)
+{
+ nsArray* arr = new nsArray;
+ if (!arr) return NS_ERROR_OUT_OF_MEMORY;
+
+ *aResult = NS_STATIC_CAST(nsIMutableArray*,arr);
+ NS_ADDREF(*aResult);
+
+ return NS_OK;
+}
+
+nsresult
+NS_NewArray(nsIMutableArray** aResult, const nsCOMArray_base& aBaseArray)
+{
+ nsArray* arr = new nsArray(aBaseArray);
+ if (!arr) return NS_ERROR_OUT_OF_MEMORY;
+
+ *aResult = NS_STATIC_CAST(nsIMutableArray*, arr);
+ NS_ADDREF(*aResult);
+
+ return NS_OK;
+}