public static void View <T>(this IViewableSet <T> me, Lifetime lifetime, Action <Lifetime, T> handler)
{
var lifetimes = new Dictionary <T, LifetimeDefinition>();
me.Advise(lifetime, (kind, value) =>
{
switch (kind)
{
case AddRemove.Add:
var def = Lifetime.Define(lifetime);
lifetimes[value] = def;
handler(def.Lifetime, value);
break;
case AddRemove.Remove:
def = lifetimes[value];
lifetimes.Remove(value);
def.Terminate();
break;
default:
throw new ArgumentOutOfRangeException($"illegal enum value: {kind}");
}
});
}
public RdSet(CtxReadDelegate <T> readValue, CtxWriteDelegate <T> writeValue, IViewableSet <T> backingSet)
{
ValueCanBeNull = false;
ReadValueDelegate = readValue;
WriteValueDelegate = writeValue;
mySet = backingSet ?? new ViewableSet <T>();
}
public static void Advise <T>(this IViewableSet <T> me, Lifetime lifetime, Action <AddRemove, T> handler)
{
me.Advise(lifetime, e => handler(e.Kind, e.Value));
}
public ModificationCookieViewableSet(Func <TCookie> cookieFactory, IViewableSet <T> backingSet)
{
myCookieFactory = cookieFactory;
myBackingSet = backingSet;
}