internal Behavior(Stream <T> stream, T initialValue)
{
this.stream = stream;
this.valueProperty = initialValue;
this.UsingInitialValue = true;
this.streamListener = TransactionInternal.Apply(
(trans1, _) =>
this.stream.Listen(
Node <T> .Null,
trans1,
(trans2, a) =>
{
this.valueUpdate.MatchNone(
() =>
{
trans2.Last(
() =>
{
this.valueUpdate.MatchSome(v => this.ValueProperty = v);
this.valueUpdate = MaybeInternal.None;
});
});
this.valueUpdate = MaybeInternal.Some(a);
},
false),
false);
}
internal Stream <T> GateImpl(Behavior <bool> b) => this.SnapshotImpl(b, (a, pred) => pred ? MaybeInternal.Some(a) : MaybeInternal.None).FilterMaybeInternal();
public static MaybeInternal <T> Some <T>(T value) => MaybeInternal <T> .Some(value);