GetOrAdd< TKey, TValue, TArg >()

static TValue System.Collections.Immutable.ImmutableInterlocked.GetOrAdd< TKey, TValue, TArg > ( ref ImmutableDictionary< TKey, TValue > location, TKey key, Func< TKey, TArg, TValue > valueFactory, TArg factoryArgument )

inlinestatic

Type Constraints

TKey

:

notnull

Definition at line 105 of file ImmutableInterlocked.cs.

                                                                                                                                                                                        : notnull
    {
        Requires.NotNull(valueFactory, "valueFactory");
        ImmutableDictionary<TKey, TValue> immutableDictionary = Volatile.Read(ref location);
        Requires.NotNull(immutableDictionary, "location");
        if (immutableDictionary.TryGetValue(key, out var value))
        {
            return value;
        }
        value = valueFactory(key, factoryArgument);
        return GetOrAdd(ref location, key, value);
    }

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