/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Microsoft Public License. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Microsoft Public License, please send an email to
* dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Microsoft Public License.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
using System.Collections.Generic;
namespace Microsoft.Scripting.Utils{
// Compares two ICollection<T>'s using element equality
internal sealed class ListEqualityComparer<T> : EqualityComparer<ICollection<T>> {
internal static readonly ListEqualityComparer<T> Instance = new ListEqualityComparer<T>();
private ListEqualityComparer() { }
// EqualityComparer<T> handles null and object identity for us
public override bool Equals(ICollection<T> x, ICollection<T> y) {
return x.ListEquals(y);
}
public override int GetHashCode(ICollection<T> obj) {
return obj.ListHashCode();
}
}
}
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