/// <summary>
/// Adds the specified <paramref name="descriptor"/> to the <paramref name="collection"/> if the
/// service type hasn't already been registered.
/// </summary>
/// <param name="collection">The <see cref="IRegistrationCollection"/>.</param>
/// <param name="descriptor">The <see cref="RegistrationDescriptor"/> to add.</param>
public static void TryAdd(
this IRegistrationCollection collection,
RegistrationDescriptor descriptor)
{
if (collection is null)
{
throw new ArgumentNullException(nameof(collection));
}
if (descriptor is null)
{
throw new ArgumentNullException(nameof(descriptor));
}
if (!collection.Any(d => d.ServiceType == descriptor.ServiceType))
{
collection.Add(descriptor);
}
}
