Innovenergy_trunk/csharp/Lib/Protocols/DBus/Utils/Extensions.cs

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2023-02-16 12:57:06 +00:00
using System.Diagnostics;
using System.Reactive;
using System.Reactive.Linq;
using System.Runtime.CompilerServices;
using static System.Runtime.CompilerServices.MethodImplOptions;
namespace InnovEnergy.Lib.Protocols.DBus.Utils;
internal static class Extensions
{
// this is a copy of a method in Utils
// it is reimplemented here in order to make this project independent of Utils
[DebuggerStepThrough][MethodImpl(AggressiveInlining | AggressiveOptimization)]
public static R Apply<T, R>(this T t, Func<T, R> f) => f(t);
// this is a copy of a method in Utils
// it is reimplemented here in order to make this project independent of Utils
public static Boolean IsNullOrEmpty(this String? s) => String.IsNullOrEmpty(s);
public static IObservable<TSource> DumpErrors<TSource>(this IObservable<TSource> source)
{
return source.DoOnError(Console.WriteLine);
}
public static IObservable<TSource> DoOnError<TSource>(this IObservable<TSource> source, Action<Exception> action )
{
return source
.Materialize()
.Do(n =>
{
if (n.Kind == NotificationKind.OnError)
action(n.Exception!);
})
.Dematerialize();
}
}