28 lines
1.1 KiB
C#
28 lines
1.1 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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#if !NETSTANDARD2_1_OR_GREATER
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namespace System.Diagnostics.CodeAnalysis;
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/// <summary>
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/// Specifies that when a method returns <see cref="ReturnValue"/>, the parameter will not be null even if the corresponding type allows it.
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/// </summary>
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/// <remarks>Internal copy from the BCL attribute.</remarks>
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[AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
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internal sealed class NotNullWhenAttribute : Attribute
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="NotNullWhenAttribute"/> class.
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/// </summary>
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/// <param name="returnValue">The return value condition. If the method returns this value, the associated parameter will not be null.</param>
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public NotNullWhenAttribute(bool returnValue) => ReturnValue = returnValue;
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/// <summary>
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/// Gets a value indicating whether the annotated variable is not <see langword="null"/>.
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/// </summary>
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public bool ReturnValue { get; }
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}
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#endif |