/// <summary>
/// Adds the specified <typeparamref name="TService"/> as a <see cref="Lifecycle.Transient"/> service
/// using the factory specified in <paramref name="implementationFactory"/>
/// to the <paramref name="services"/> if the service type hasn't already been registered.
/// </summary>
/// <typeparam name="TService">The type of the service to add.</typeparam>
/// <param name="services">The <see cref="IRegistrationCollection"/>.</param>
/// <param name="implementationFactory">The factory that creates the service.</param>
public static void TryAddTransient <TService>(
this IRegistrationCollection services,
Func <IServiceProvider, TService> implementationFactory)
where TService : class
{
services.TryAdd(RegistrationDescriptor.Transient(implementationFactory));
}
/// <summary>
/// Adds the specified <paramref name="descriptors"/> 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="descriptors">The <see cref="RegistrationDescriptor"/>s to add.</param>
public static void TryAdd(
this IRegistrationCollection collection,
IEnumerable <RegistrationDescriptor> descriptors)
{
if (collection is null)
{
throw new ArgumentNullException(nameof(collection));
}
if (descriptors is null)
{
throw new ArgumentNullException(nameof(descriptors));
}
foreach (var d in descriptors)
{
collection.TryAdd(d);
}
}
