NotNullIfNotNullAttribute
Specifies that the output will be non-null if the named parameter is non-null.
using System.Runtime.CompilerServices;
namespace System.Diagnostics.CodeAnalysis
{
[System.Runtime.CompilerServices.NullableContext(1)]
[System.Runtime.CompilerServices.Nullable(0)]
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Parameter | AttributeTargets.ReturnValue, AllowMultiple = true, Inherited = false)]
internal sealed class NotNullIfNotNullAttribute : Attribute
{
public string ParameterName { get; }
public NotNullIfNotNullAttribute(string parameterName)
{
ParameterName = parameterName;
}
}
}