WeakenedCache

Acts like a regular cache but with the ability to make its entries weakly referenced

Create cache

var cache = new WeakenedCache();

Fill it

var instance1 = new SampleRefType(1);
var instance2 = new SampleRefType(2);
var instance3 = new SampleRefType(3);

cache.Put(Key1, instance1, WeakenedCache.Priority.Low);        
cache.Put(Key2, instance2, WeakenedCache.Priority.Normal);
cache.Put(Key3, instance3, WeakenedCache.Priority.High);

Get values

(cache.Take(Key1) as SampleRefType).Value;    // 1

or use generic

cache.Take<SampleRefType>(Key2)?.Value;       // 2 
cache.Take<SampleRefType>(Key3)?.Value;       // 3

Weaken items of some priorities

cache.WeakenUpTo(WeakenedCache.Priority.Normal);

Put items with expiration of Weaken type

var someInstance = new SampleRefType();

cache.Put(
  key: Key4,
  value: someInstance,
  priority: WeakenedCache.Priority.Normal,
  expiration: TimeSpan.FromSeconds(10),
  expirationType: WeakenedCache.ExpirationType.Weaken);

Or Clear type

var otherInstance = new SampleRefType();

cache.Put(
    key: Key5,
    value: otherInstance,
    priority: WeakenedCache.Priority.Normal,
    expiration: TimeSpan.FromSeconds(10),
    expirationType: WeakenedCache.ExpirationType.Clear);