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