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#if NET20 || NET30 || NET35 || !NET_4_6
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
namespace System.Diagnostics.Contracts
{
/// <summary>
/// Methods and classes marked with this attribute can be used within calls to Contract methods. Such methods not make any visible state changes.
/// </summary>
[Conditional("CONTRACTS_FULL")]
[AttributeUsage(AttributeTargets.Constructor | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Event | AttributeTargets.Delegate | AttributeTargets.Class | AttributeTargets.Parameter, AllowMultiple = false, Inherited = true)]
public sealed class PureAttribute : Attribute
{
// Empty
}
}
#endif