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//------------------------------------------------------------------------------
// <copyright file="DisposableCollectionWrapper.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
// <owner current="true" primary="false">Microsoft</owner>
//------------------------------------------------------------------------------
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
namespace System.Data.Common.Utils
{
internal class DisposableCollectionWrapper<T> : IDisposable, IEnumerable<T> where T : IDisposable
{
IEnumerable<T> _enumerable;
internal DisposableCollectionWrapper(IEnumerable<T> enumerable)
{
Debug.Assert(enumerable != null, "don't pass in a null enumerable");
_enumerable = enumerable;
}
public void Dispose()
{
// Technically, calling GC.SuppressFinalize is not required because the class does not
// have a finalizer, but it does no harm, protects against the case where a finalizer is added
// in the future, and prevents an FxCop warning.
GC.SuppressFinalize(this);
if(_enumerable != null)
{
foreach(T item in _enumerable)
{
if(item != null)
{
item.Dispose();
}
}
}
}
public IEnumerator<T> GetEnumerator()
{
return _enumerable.GetEnumerator();
}
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
return ((System.Collections.IEnumerable)_enumerable).GetEnumerator();
}
}
}
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