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/* ****************************************************************************
*
* 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.
*
*
* ***************************************************************************/
namespace Microsoft.Scripting {
/// <summary>
/// Provides hashing and equality based upon the value of the object instead of the reference.
/// </summary>
public interface IValueEquality {
/// <summary>
/// Gets the hash code for the value of the instance.
/// </summary>
/// <returns>A hash code</returns>
/// <exception cref="Microsoft.Scripting.ArgumentTypeException">The type is mutable and cannot be hashed by value</exception>
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
int GetValueHashCode();
/// <summary>
/// Determines if two values are equal
/// </summary>
/// <param name="other">The object to compare the current object against.</param>
/// <returns>Returns true if the objects are equal, false if they are not.</returns>
bool ValueEquals(object other);
}
}
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