/// <summary>
/// Accepts the <see cref="TypedFactoryRegistration{TImplementation}"/> to visit.
/// </summary>
/// <param name="registration">The <see cref="TypedFactoryRegistration{TImplementation}"/> to visit.</param>
public void Accept(TypedFactoryRegistration <TImplementation> registration)
{
if (registration == null)
{
throw new ArgumentNullException(nameof(registration));
}
IComposition composition = new TypedFactoryComposition <TImplementation>(registration.Factory);
_container.AddComposition(composition);
}
/// <summary>
/// Accepts the <see cref="InjectedSingletonRegistration{TImplementation}"/> to visit.
/// </summary>
/// <param name="registration">
/// The <see cref="InjectedSingletonRegistration{TImplementation}"/> to visit.
/// </param>
public void Accept(InjectedSingletonRegistration <TImplementation> registration)
{
if (registration == null)
{
throw new ArgumentNullException(nameof(registration));
}
IComposition composition = new InjectedSingletonComposition <TImplementation>(registration.Value);
_container.AddComposition(composition);
}
/// <summary>
/// Accepts the <see cref="FactoryRegistration"/> to visit.
/// </summary>
/// <param name="registration">The <see cref="FactoryRegistration"/> to visit.</param>
public void Accept(FactoryRegistration registration)
{
if (registration == null)
{
throw new ArgumentNullException(nameof(registration));
}
Type type = registration.ImplementationType;
var composition = new FactoryComposition(type, registration.Factory);
_container.AddComposition(composition);
}
/// <summary>
/// Accepts the <see cref="SingletonRegistration"/> to visit.
/// </summary>
/// <param name="registration">The <see cref="SingletonRegistration"/> to visit.</param>
public void Accept(SingletonRegistration registration)
{
if (registration == null)
{
throw new ArgumentNullException(nameof(registration));
}
// Visit the inner registration which will add a composition.
_manager.Visit(registration.Inner);
// Get the original composition, removing it to allow it to be replaced.
IComposition inner = _container.RemoveComposition(registration.ImplementationType);
// Replace the inner composition.
IComposition composition = new SingletonComposition(inner);
_container.AddComposition(composition);
}
/// <summary>
/// Accepts the <see cref="SingleConstructorRegistration"/> to visit.
/// </summary>
/// <param name="registration">The <see cref="SingleConstructorRegistration"/> to visit.</param>
public void Accept(SingleConstructorRegistration registration)
{
if (registration == null)
{
throw new ArgumentNullException(nameof(registration));
}
Type type = registration.ImplementationType;
// Since this is default registrations it can be superseded by other registrations. Therefore if there is
// already a registration for this type, don't replace it.
if (_container.Compositions.ContainsKey(type))
{
return;
}
TypeInfo typeInfo = type.GetTypeInfo();
ConstructorInfo[] constructors = typeInfo.GetConstructors(BindingFlags.Public | BindingFlags.Instance);
// There must be a public constructor.
if (constructors.Length == 0)
{
string message = $"The service of type '{type}' has no public constructors.";
throw new CompositionException(message);
}
// There must be just 1 public constructor.
if (constructors.Length > 1)
{
string message = $"The service of type '{type}' has {constructors.Length:N0} " +
"public constructors. There must be just 1.";
throw new CompositionException(message);
}
ParameterInfo[] parameters = constructors[0].GetParameters();
IComposition composition = new ConstructorComposition(type, parameters, isDefault: true);
_container.AddComposition(composition);
}