LastOrDefaultAsync<TSource>
using System.Runtime.CompilerServices;
namespace System.Reactive.Linq.ObservableImpl
{
[NullableContext(1)]
[Nullable(0)]
internal static class LastOrDefaultAsync<[Nullable(2)] TSource>
{
[Nullable(new byte[] {
0,
2,
1,
0
})]
internal sealed class Sequence : System.Reactive.Producer<TSource, Sequence._>
{
[Nullable(new byte[] {
0,
1,
2
})]
internal sealed class _ : System.Reactive.Sink<TSource, TSource>
{
[Nullable(2)]
private TSource _value;
public _([Nullable(new byte[] {
1,
2
})] IObserver<TSource> observer)
: base(observer)
{
}
public override void OnNext(TSource value)
{
_value = value;
}
public override void OnError(Exception error)
{
_value = default(TSource);
ForwardOnError(error);
}
public override void OnCompleted()
{
TSource value = _value;
_value = default(TSource);
ForwardOnNext(value);
ForwardOnCompleted();
}
}
private readonly IObservable<TSource> _source;
public Sequence(IObservable<TSource> source)
{
_source = source;
}
[return: Nullable(new byte[] {
1,
0
})]
protected override _ CreateSink([Nullable(new byte[] {
1,
2
})] IObserver<TSource> observer)
{
return new _(observer);
}
protected override void Run([Nullable(new byte[] {
1,
0
})] _ sink)
{
sink.Run(_source);
}
}
[Nullable(new byte[] {
0,
2,
1,
0
})]
internal sealed class Predicate : System.Reactive.Producer<TSource, Predicate._>
{
[Nullable(new byte[] {
0,
1,
2
})]
internal sealed class _ : System.Reactive.Sink<TSource, TSource>
{
private readonly Func<TSource, bool> _predicate;
[Nullable(2)]
private TSource _value;
public _(Func<TSource, bool> predicate, [Nullable(new byte[] {
1,
2
})] IObserver<TSource> observer)
: base(observer)
{
_predicate = predicate;
}
public override void OnNext(TSource value)
{
bool flag = false;
try {
flag = _predicate(value);
} catch (Exception error) {
_value = default(TSource);
ForwardOnError(error);
return;
}
if (flag)
_value = value;
}
public override void OnError(Exception error)
{
_value = default(TSource);
ForwardOnError(error);
}
public override void OnCompleted()
{
TSource value = _value;
_value = default(TSource);
ForwardOnNext(value);
ForwardOnCompleted();
}
}
private readonly IObservable<TSource> _source;
private readonly Func<TSource, bool> _predicate;
public Predicate(IObservable<TSource> source, Func<TSource, bool> predicate)
{
_source = source;
_predicate = predicate;
}
[return: Nullable(new byte[] {
1,
0
})]
protected override _ CreateSink([Nullable(new byte[] {
1,
2
})] IObserver<TSource> observer)
{
return new _(_predicate, observer);
}
protected override void Run([Nullable(new byte[] {
1,
0
})] _ sink)
{
sink.Run(_source);
}
}
}
}