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//
// ExtensionNodeList.cs
//
// Author:
// Lluis Sanchez Gual
//
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Collections.Generic;
namespace Mono.Addins
{
/// <summary>
/// A list of extension nodes.
/// </summary>
public class ExtensionNodeList: IEnumerable
{
internal List<ExtensionNode> list;
internal static ExtensionNodeList Empty = new ExtensionNodeList (new List<ExtensionNode> ());
internal ExtensionNodeList (List<ExtensionNode> list)
{
this.list = list;
}
/// <summary>
/// Returns the node in the specified index.
/// </summary>
/// <param name="n">
/// The index.
/// </param>
public ExtensionNode this [int n] {
get {
if (list == null)
throw new System.IndexOutOfRangeException ();
else
return (ExtensionNode) list [n];
}
}
/// <summary>
/// Returns the node with the specified ID.
/// </summary>
/// <param name="id">
/// An id.
/// </param>
public ExtensionNode this [string id] {
get {
if (list == null)
return null;
else {
for (int n = list.Count - 1; n >= 0; n--)
if (((ExtensionNode) list [n]).Id == id)
return (ExtensionNode) list [n];
return null;
}
}
}
/// <summary>
/// Gets an enumerator which enumerates all nodes in the list
/// </summary>
public IEnumerator GetEnumerator ()
{
if (list == null)
return ((IList)Type.EmptyTypes).GetEnumerator ();
return list.GetEnumerator ();
}
/// <summary>
/// Number of nodes of the collection.
/// </summary>
public int Count {
get { return list == null ? 0 : list.Count; }
}
/// <summary>
/// Copies all nodes to an array
/// </summary>
/// <param name='array'>
/// The target array
/// </param>
/// <param name='index'>
/// Initial index where to copy to
/// </param>
public void CopyTo (ExtensionNode[] array, int index)
{
if (list != null)
list.CopyTo (array, index);
}
}
/// <summary>
/// A list of extension nodes.
/// </summary>
public class ExtensionNodeList<T>: IEnumerable, IEnumerable<T> where T: ExtensionNode
{
List<ExtensionNode> list;
internal static ExtensionNodeList<T> Empty = new ExtensionNodeList<T> (new List<ExtensionNode> ());
internal ExtensionNodeList (List<ExtensionNode> list)
{
this.list = list;
}
/// <summary>
/// Returns the node in the specified index.
/// </summary>
/// <param name="n">
/// The index.
/// </param>
public T this [int n] {
get {
if (list == null)
throw new System.IndexOutOfRangeException ();
else
return (T) list [n];
}
}
/// <summary>
/// Returns the node with the specified ID.
/// </summary>
/// <param name="id">
/// An id.
/// </param>
public T this [string id] {
get {
if (list == null)
return null;
else {
for (int n = list.Count - 1; n >= 0; n--)
if (list [n].Id == id)
return (T) list [n];
return null;
}
}
}
/// <summary>
/// Gets an enumerator which enumerates all nodes in the list
/// </summary>
public IEnumerator<T> GetEnumerator ()
{
if (list == null)
yield break;
foreach (ExtensionNode n in list)
yield return (T) n;
}
IEnumerator IEnumerable.GetEnumerator ()
{
if (list == null)
return ((IList)Type.EmptyTypes).GetEnumerator ();
return list.GetEnumerator ();
}
/// <summary>
/// Number of nodes of the collection.
/// </summary>
public int Count {
get { return list == null ? 0 : list.Count; }
}
/// <summary>
/// Copies all nodes to an array
/// </summary>
/// <param name='array'>
/// The target array
/// </param>
/// <param name='index'>
/// Initial index where to copy to
/// </param>
public void CopyTo (T[] array, int index)
{
if (list != null)
list.CopyTo (array, index);
}
}
}
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