File: src\Shared\CallerArgument\CallerArgumentExpressionAttribute.cs
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Project: src\src\SignalR\common\SignalR.Common\src\Microsoft.AspNetCore.SignalR.Common.csproj (Microsoft.AspNetCore.SignalR.Common)
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
// From https://github.com/dotnet/runtime/blob/5da4a9e919dcee35f831ab69b6e475baaf798875/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/CallerArgumentExpressionAttribute.cs
 
namespace System.Runtime.CompilerServices;
 
#if !NETCOREAPP3_0_OR_GREATER
[AttributeUsage(AttributeTargets.Parameter, AllowMultiple = false, Inherited = false)]
internal sealed class CallerArgumentExpressionAttribute : Attribute
{
    public CallerArgumentExpressionAttribute(string parameterName)
    {
        ParameterName = parameterName;
    }
 
    public string ParameterName { get; }
}
#endif