88 lines
2.4 KiB
C#
88 lines
2.4 KiB
C#
//
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// System.Security.Cryptography.AsnEncodedDataEnumerator
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//
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// Author:
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// Sebastien Pouliot <sebastien@ximian.com>
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//
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// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
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// Copyright (C) 2004 Novell Inc. (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#if SECURITY_DEP
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using System.Collections;
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namespace System.Security.Cryptography {
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public sealed class AsnEncodedDataEnumerator : IEnumerator {
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private AsnEncodedDataCollection _collection;
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private int _position;
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// note: couldn't reuse the IEnumerator from ArrayList because
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// it doesn't throw the same exceptions
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internal AsnEncodedDataEnumerator (AsnEncodedDataCollection collection)
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{
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_collection = collection;
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_position = -1;
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}
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// properties
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public AsnEncodedData Current {
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get {
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if (_position < 0)
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throw new ArgumentOutOfRangeException ();
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return (AsnEncodedData) _collection [_position];
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}
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}
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object IEnumerator.Current {
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get {
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if (_position < 0)
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throw new ArgumentOutOfRangeException ();
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return _collection [_position];
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}
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}
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// methods
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public bool MoveNext ()
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{
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if (++_position < _collection.Count)
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return true;
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else {
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// strangely we must always be able to return the last entry
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_position = _collection.Count - 1;
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return false;
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}
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}
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public void Reset ()
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{
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_position = -1;
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}
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}
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}
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#endif
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