public TValue GetOrAdd(TKey key) { TValue value; if (!Source.ContainsKey(key)) { value = DefaultValueBuilder.Invoke(key); Source.AddOrUpdate(key, value, (k, v) => value); } Source.TryGetValue(key, out value); return(value); }
public void AddOrUpdate(TKey key, TValue value) => Source.AddOrUpdate(key, value, (k, v) => value);