GetOrAdd< TKey, TValue >() [2/2]

static TValue System.Collections.Immutable.ImmutableInterlocked.GetOrAdd< TKey, TValue > ( ref ImmutableDictionary< TKey, TValue > location, TKey key, TValue value )

inlinestatic

Type Constraints

TKey

:

notnull

Definition at line 131 of file ImmutableInterlocked.cs.

                                                                                                                                   : notnull
    {
        ImmutableDictionary<TKey, TValue> immutableDictionary = Volatile.Read(ref location);
        bool flag;
        do
        {
            Requires.NotNull(immutableDictionary, "location");
            if (immutableDictionary.TryGetValue(key, out var value2))
            {
                return value2;
            }
            ImmutableDictionary<TKey, TValue> value3 = immutableDictionary.Add(key, value);
            ImmutableDictionary<TKey, TValue> immutableDictionary2 = Interlocked.CompareExchange(ref location, value3, immutableDictionary);
            flag = immutableDictionary == immutableDictionary2;
            immutableDictionary = immutableDictionary2;
        }
        while (!flag);
        return value;
    }

References System.Collections.Generic.Dictionary< TKey, TValue >.Add(), System.Threading.Interlocked.CompareExchange(), System.key, System.Threading.Volatile.Read(), System.Collections.Generic.Dictionary< TKey, TValue >.TryGetValue(), and System.value.