/
KeyedByTypeCollection.cs
126 lines (106 loc) · 3.19 KB
/
KeyedByTypeCollection.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.ServiceModel;
using System.Collections.ObjectModel;
namespace System.Collections.Generic
{
public class KeyedByTypeCollection<TItem> : KeyedCollection<Type, TItem>
{
public KeyedByTypeCollection()
: base(null, 4)
{
}
public KeyedByTypeCollection(IEnumerable<TItem> items)
: base(null, 4)
{
if (items == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(items));
}
foreach (TItem item in items)
{
base.Add(item);
}
}
public T Find<T>()
{
return Find<T>(false);
}
public T Remove<T>()
{
return Find<T>(true);
}
private T Find<T>(bool remove)
{
for (int i = 0; i < Count; i++)
{
TItem settings = this[i];
if (settings is T)
{
if (remove)
{
Remove(settings);
}
return (T)(object)settings;
}
}
return default(T);
}
public Collection<T> FindAll<T>()
{
return FindAll<T>(false);
}
public Collection<T> RemoveAll<T>()
{
return FindAll<T>(true);
}
private Collection<T> FindAll<T>(bool remove)
{
Collection<T> result = new Collection<T>();
foreach (TItem settings in this)
{
if (settings is T)
{
result.Add((T)(object)settings);
}
}
if (remove)
{
foreach (T settings in result)
{
Remove((TItem)(object)settings);
}
}
return result;
}
protected override Type GetKeyForItem(TItem item)
{
if (item == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(item));
}
return item.GetType();
}
protected override void InsertItem(int index, TItem item)
{
if (item == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(item));
}
if (Contains(item.GetType()))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("item", SRP.Format(SRP.DuplicateBehavior1, item.GetType().FullName));
}
base.InsertItem(index, item);
}
protected override void SetItem(int index, TItem item)
{
if (item == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(item));
}
base.SetItem(index, item);
}
}
}