how to try an alternative for failed Try with a new call that returns a Try

So what i’m looking for is something like what other frameworks (jvm) calls

public Try<T> OrElseTry(this Try<T>, Func<T> alternative)

So if the this Try is in Error then alternative is called Is that possible? It seems resonable.

[mathiasbn]

Thank you for quick reply. I can live with that extension. I feared that I missed something, I’m not used to frameworks so Haskell’ish near.

[louthy]

@mathiasbn Hi Mathias, a bit late, but this is fixed in v2.2.7-beta

There is now a choice function in the Prelude for Try, TryOption, TryAsync, TryOptionAsync, and Task.

For example:

var ma = Try<int>(() => throw new Exception());
var mb = Try<int>(() => throw new Exception());
var mc = Try(() => 123);

var res = choice(ma, mb, mc);

Assert.True(res.IfFail(0) == 123);

Plus is available for chaining OR operations.

var res = ma.Plus(mb.Plus(mc));

Obviously that’s not quite as elegant as the choice approach.