private String ShallowArgString(InjectionPlan arg)
{
if (arg is Constructor || arg is Subplan)
{
return(arg.GetType().Name + ": " + arg.GetNode().GetName());
}
else
{
return(arg.ToShallowString());
}
}
public object InjectFromPlan(InjectionPlan plan)
{
if (!plan.IsFeasible())
{
throw new InjectionException("Cannot inject " + plan.GetNode().GetFullName() + ": "
+ plan.ToCantInjectString());
}
if (plan.IsAmbiguous())
{
throw new InjectionException("Cannot inject " + plan.GetNode().GetFullName() + " "
+ plan.ToCantInjectString());
}
if (plan is InjectionFuturePlan)
{
InjectionFuturePlan fut = (InjectionFuturePlan)plan;
string key = fut.GetNode().GetFullName();
try
{
//we will see if we need to introduce T to replace object
InjectionFuture ret = new InjectionFuture(this, classHierarchy.ClassForName(fut.GetNode().GetFullName()));
pendingFutures.Add(ret);
return(ret);
}
catch (TypeLoadException e)
{
throw new InjectionException("Could not get class for " + key);
}
}
else if (plan.GetNode() is IClassNode && null != GetCachedInstance((IClassNode)plan.GetNode()))
{
return(GetCachedInstance((IClassNode)plan.GetNode()));
}
else if (plan is CsInstance)
{
// TODO: Must be named parameter node. Check.
// throw new IllegalStateException("Instance from plan not in Injector's set of instances?!?");
return(((CsInstance)plan).instance);
}
else if (plan is Constructor)
{
Constructor constructor = (Constructor)plan;
object[] args = new object[constructor.GetArgs().Length];
InjectionPlan[] argPlans = constructor.GetArgs();
for (int i = 0; i < argPlans.Length; i++)
{
args[i] = InjectFromPlan(argPlans[i]);
}
try
{
concurrentModificationGuard = true;
object ret;
try
{
IConstructorDef def = (IConstructorDef)constructor.GetConstructorDef();
ConstructorInfo c = GetConstructor(def);
if (aspect != null)
{
ret = aspect.Inject(def, c, args);
}
else
{
ret = c.Invoke(args);
}
}
catch (ArgumentException e)
{
StringBuilder sb = new StringBuilder("Internal Tang error? Could not call constructor " + constructor.GetConstructorDef() + " with arguments [");
foreach (Object o in args)
{
sb.Append("\n\t" + o);
}
sb.Append("]");
throw new IllegalStateException(sb.ToString(), e);
}
if (ret is IExternalConstructor)
{
ret = ((IExternalConstructor)ret).NewInstance();
}
instances.Add(constructor.GetNode(), ret);
return(ret);
}
catch (Exception e)
{
throw new InjectionException("Could not invoke constructor: " + plan, e); //check what exception might be got and refine it
} finally
{
concurrentModificationGuard = false;
}
}
else if (plan is Subplan)
{
Subplan ambiguous = (Subplan)plan;
return(InjectFromPlan(ambiguous.GetDelegatedPlan()));
}
else if (plan is SetInjectionPlan)
{
SetInjectionPlan setPlan = (SetInjectionPlan)plan;
ISet <object> ret = new MonotonicSet <object>();
foreach (InjectionPlan subplan in setPlan.GetEntryPlans())
{
ret.Add(InjectFromPlan(subplan));
}
return(ret);
}
else
{
throw new IllegalStateException("Unknown plan type: " + plan);
}
}