public ContainerService Instantiate(Type type, bool crearteNew, IObjectAccessor arguments)
{
var builder = new ContainerService.Builder(type, this, crearteNew, arguments);
if (builder.Status != ServiceStatus.Ok)
return builder.Build();
var declaredName = builder.GetDeclaredName();
if (!constructingServices.Add(declaredName))
{
var previous = GetTopBuilder();
if (previous == null)
throw new InvalidOperationException(string.Format("assertion failure, service [{0}]", declaredName));
var message = string.Format("cyclic dependency {0}{1} -> {0}",
type.FormatName(), previous.Type == type ? "" : " ...-> " + previous.Type.FormatName());
var cycleBuilder = new ContainerService.Builder(type, this, false, null);
cycleBuilder.SetError(message);
return cycleBuilder.Build();
}
stack.Add(builder);
var expandResult = TryExpandUnions(Container.Configuration);
if (expandResult != null)
{
var poppedContracts = Contracts.PopMany(expandResult.Length);
foreach (var c in expandResult.CartesianProduct())
{
var childService = Resolve(new ServiceName(builder.Type, c));
builder.LinkTo(Container.containerContext, childService, null);
if (builder.Status.IsBad())
break;
}
Contracts.AddRange(poppedContracts);
}
else
Container.Instantiate(builder);
stack.RemoveLast();
constructingServices.Remove(declaredName);
return builder.Build();
}
