public static bool TryAddAsyncLazy <T>(this ConcurrentTypeSet <object> set, Func <Task <T> > valueFactory)
{
Contracts.Requires.That(set != null);
Contracts.Requires.That(valueFactory != null);
return(set.TryAdd(new AsyncLazy <T>(valueFactory)));
}
public static async Task <T> GetOrAddLazyAsync <T>(this ConcurrentTypeSet <object> set, Func <Task <T> > valueFactory)
{
Contracts.Requires.That(set != null);
Contracts.Requires.That(valueFactory != null);
return(await set.GetOrAdd(new AsyncLazy <T>(valueFactory)));
}
public static T GetOrAddLazy <T>(this ConcurrentTypeSet <object> set, Func <T> valueFactory)
{
Contracts.Requires.That(set != null);
Contracts.Requires.That(valueFactory != null);
return(set.GetOrAdd(new Lazy <T>(valueFactory)).Value);
}
public static async Task <TryValue <T> > TryGetValueLazyAsync <T>(this ConcurrentTypeSet <object> set)
{
Contracts.Requires.That(set != null);
AsyncLazy <T> lazy;
return(set.TryGetValue(out lazy) ? TryValue.New(await lazy) : TryValue.None <T>());
}
public static bool TryGetValueLazy <T>(this ConcurrentTypeSet <object> set, out T value)
{
Contracts.Requires.That(set != null);
Lazy <T> lazy;
bool result = set.TryGetValue(out lazy);
value = lazy.Value;
return(result);
}
public static async Task <T> AddOrUpdateLazyAsync <T>(
this ConcurrentTypeSet <object> set, Func <Task <T> > addValueFactory, Func <T, T> updateValueFactory)
{
Contracts.Requires.That(set != null);
Contracts.Requires.That(addValueFactory != null);
Contracts.Requires.That(updateValueFactory != null);
return(await set.AddOrUpdate(
new AsyncLazy <T>(addValueFactory),
old => new AsyncLazy <T>(async() => updateValueFactory(await old))));
}
public static T AddOrUpdateLazy <T>(
this ConcurrentTypeSet <object> set, Func <T> addValueFactory, Func <T, T> updateValueFactory)
{
Contracts.Requires.That(set != null);
Contracts.Requires.That(addValueFactory != null);
Contracts.Requires.That(updateValueFactory != null);
return(set.AddOrUpdate(
new Lazy <T>(addValueFactory),
old => new Lazy <T>(() => updateValueFactory(old.Value))).Value);
}
public static bool TryRemoveAsyncLazy <T>(this ConcurrentTypeSet <object> set)
{
Contracts.Requires.That(set != null);
return(set.TryRemove <AsyncLazy <T> >());
}
