private IEnumerable <object> ResolveConstructorParameters(RegisteredObject registeredObject)
{
var constructorInfo = registeredObject.ConcreteType.GetConstructors().First();
if (constructorInfo == null)
{
throw new Exception($"There are no public constructors for type {registeredObject.ConcreteType.FullName}");
}
return(constructorInfo.GetParameters().Select(parameter => ResolveObject(parameter.ParameterType)));
}
private object GetInstance(RegisteredObject registeredObject)
{
object instance = registeredObject.SingletonInstance;
if (instance != null)
{
return(instance);
}
var isConstructorAttribute = registeredObject.ConcreteType.GetCustomAttribute <ImportConstructorAttribute>(false) != null;
if (isConstructorAttribute)
{
var parameters = ResolveConstructorParameters(registeredObject);
instance = registeredObject.CreateInstance(parameters.ToArray());
}
else
{
instance = registeredObject.CreateInstance();
ResolveProperty(registeredObject, ref instance);
}
return(instance);
}