Except() [3/3]

static MutationResult System.Collections.Immutable.ImmutableHashSet< T >.Except ( IEnumerable< T > other, IEqualityComparer< T > equalityComparer, IEqualityComparer< HashBucket > hashBucketEqualityComparer, SortedInt32KeyNode< HashBucket > root )

inlinestaticprivate

Definition at line 1109 of file ImmutableHashSet.cs.

    {
        Requires.NotNull(other, "other");
        Requires.NotNull(equalityComparer, "equalityComparer");
        Requires.NotNull(root, "root");
        int num = 0;
        SortedInt32KeyNode<HashBucket> sortedInt32KeyNode = root;
        foreach (T item in other.GetEnumerableDisposable<T, Enumerator>())
        {
            int num2 = ((item != null) ? equalityComparer.GetHashCode(item) : 0);
            if (sortedInt32KeyNode.TryGetValue(num2, out var value))
            {
                OperationResult result;
                HashBucket newBucket = value.Remove(item, equalityComparer, out result);
                if (result == OperationResult.SizeChanged)
                {
                    num--;
                    sortedInt32KeyNode = UpdateRoot(sortedInt32KeyNode, num2, hashBucketEqualityComparer, newBucket);
                }
            }
        }
        return new MutationResult(sortedInt32KeyNode, num);
    }

References System.item, System.other, System.Collections.Generic.Dictionary< TKey, TValue >.Remove(), System.Collections.Generic.Dictionary< TKey, TValue >.TryGetValue(), System.Collections.Immutable.ImmutableHashSet< T >.UpdateRoot(), and System.value.