HashMap reference equals semantics

[SicJG]

Hi there
Is there any way to achive equality checking on two two HashMaps with reference equals semantics i.e check that two hashMaps point to the same TrieMap object?
Task that i want to accomplish is to determine was an update of hashmap "effective" or not

var baseHM = HashMap<int, int>.Empty.Add(1, 1);

var addNewItem = baseHM.Add(2, 2);
var addNewItemAndDeleteIt = baseHM.Add(2, 2).Remove(2);
var setAlreadyAddedWithSameValue = baseHM.SetItem(1, 1);
var setAlreadyAddedWithNewValue = baseHM.SetItem(1, 2);
var toHashMap = baseHM.ToHashMap();

var baseRefEqualsToAddNewItem  = baseHM.ReferenceEquals(addNewItem) // <= false
var baseRefEqualsToAddNewItemAndDeleteIt  = baseHM.ReferenceEquals(addNewItemAndDeleteIt) // <= false if there is no version caching and change analysis semantics in hashMap/TrieMap
var baseRefEqualsSetAlreadyAddedWithSameValue  = baseHM.ReferenceEquals(setAlreadyAddedWithSameValue) // <= true
var baseRefEqualsSetAlreadyAddedWithNewValue  = baseHM.ReferenceEquals(setAlreadyAddedWithNewValue) // <= false
var baseRefEqualsToHashMap  = baseHM.ReferenceEquals(toHashMap) // <= true

[louthy]

You can construct AtomHashMap from your HashMap. It has change-tracking via the Change event.

Construction and extraction of the HashMap is low cost, so there's little overhead.

[SicJG]

Thank you for quick reply!