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Added MoreLinq too
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#region License and Terms | ||
// MoreLINQ - Extensions to LINQ to Objects | ||
// Copyright (c) 2012 Atif Aziz. All rights reserved. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
#endregion | ||
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namespace MoreLinq | ||
{ | ||
using System; | ||
using System.Collections.Generic; | ||
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static partial class MoreEnumerable | ||
{ | ||
/// <summary> | ||
/// Ensures that a source sequence of <see cref="IDisposable"/> | ||
/// objects are all acquired successfully. If the acquisition of any | ||
/// one <see cref="IDisposable"/> fails then those successfully | ||
/// acquired till that point are disposed. | ||
/// </summary> | ||
/// <typeparam name="TSource">Type of elements in <paramref name="source"/> sequence.</typeparam> | ||
/// <param name="source">Source sequence of <see cref="IDisposable"/> objects.</param> | ||
/// <returns> | ||
/// Returns an array of all the acquired <see cref="IDisposable"/> | ||
/// object and in source order. | ||
/// </returns> | ||
/// <remarks> | ||
/// This operator executes immediately. | ||
/// </remarks> | ||
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public static TSource[] Acquire<TSource>(this IEnumerable<TSource> source) | ||
where TSource : IDisposable | ||
{ | ||
if (source == null) throw new ArgumentNullException("source"); | ||
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var disposables = new List<TSource>(); | ||
try | ||
{ | ||
disposables.AddRange(source); | ||
return disposables.ToArray(); | ||
} | ||
catch | ||
{ | ||
foreach (var disposable in disposables) | ||
disposable.Dispose(); | ||
throw; | ||
} | ||
} | ||
} | ||
} |
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