SingleOrDefaultAsync<TSource>
using System.Runtime.CompilerServices;
namespace System.Reactive.Linq.ObservableImpl
{
[System.Runtime.CompilerServices.NullableContext(1)]
[System.Runtime.CompilerServices.Nullable(0)]
internal static class SingleOrDefaultAsync<[System.Runtime.CompilerServices.Nullable(2)] TSource>
{
[System.Runtime.CompilerServices.Nullable(new byte[] {
0,
2,
1,
0
})]
internal sealed class Sequence : Producer<TSource, Sequence._>
{
[System.Runtime.CompilerServices.Nullable(new byte[] {
0,
1,
2
})]
internal sealed class _ : Sink<TSource, TSource>
{
[System.Runtime.CompilerServices.Nullable(2)]
private TSource _value;
private bool _seenValue;
public _([System.Runtime.CompilerServices.Nullable(new byte[] {
1,
2
})] IObserver<TSource> observer)
: base(observer)
{
}
public override void OnNext(TSource value)
{
if (_seenValue)
try {
throw new InvalidOperationException(Strings_Linq.MORE_THAN_ONE_ELEMENT);
} catch (Exception error) {
ForwardOnError(error);
}
else {
_value = value;
_seenValue = true;
}
}
public override void OnCompleted()
{
ForwardOnNext(_value);
ForwardOnCompleted();
}
}
private readonly IObservable<TSource> _source;
public Sequence(IObservable<TSource> source)
{
_source = source;
}
[return: System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0
})]
protected override _ CreateSink([System.Runtime.CompilerServices.Nullable(new byte[] {
1,
2
})] IObserver<TSource> observer)
{
return new _(observer);
}
protected override void Run([System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0
})] _ sink)
{
sink.Run(_source);
}
}
[System.Runtime.CompilerServices.Nullable(new byte[] {
0,
2,
1,
0
})]
internal sealed class Predicate : Producer<TSource, Predicate._>
{
[System.Runtime.CompilerServices.Nullable(new byte[] {
0,
1,
2
})]
internal sealed class _ : Sink<TSource, TSource>
{
private readonly Func<TSource, bool> _predicate;
[System.Runtime.CompilerServices.Nullable(2)]
private TSource _value;
private bool _seenValue;
public _(Func<TSource, bool> predicate, [System.Runtime.CompilerServices.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) {
ForwardOnError(error);
return;
}
if (flag) {
if (_seenValue)
try {
throw new InvalidOperationException(Strings_Linq.MORE_THAN_ONE_MATCHING_ELEMENT);
} catch (Exception error2) {
ForwardOnError(error2);
}
else {
_value = value;
_seenValue = true;
}
}
}
public override void OnCompleted()
{
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: System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0
})]
protected override _ CreateSink([System.Runtime.CompilerServices.Nullable(new byte[] {
1,
2
})] IObserver<TSource> observer)
{
return new _(_predicate, observer);
}
protected override void Run([System.Runtime.CompilerServices.Nullable(new byte[] {
1,
0
})] _ sink)
{
sink.Run(_source);
}
}
}
}