Hey, anybody knows why the `catch` function from t...

# arrow

[antonicg]

Hey, anybody knows why the catch function from the Either is a suspend function? Is it possible to catch an exception without using an IO ?

[simon.vergauwen]

Yes, since suspend models a Continuation which results in Throwable or A.

Similar to how IO results in Throwable or A.

[simon.vergauwen]

The default constructor for IO is equivalent to fun <A> IO(f: suspend () -> A): IO<A>.

[simon.vergauwen]

And so you could capture the result safely in IO and flatten it. Or any other suspend implementation

[antonicg]

okay,thanks for the answer! I was asking because since Try was deprecated maybe makes sense to do the same but without the limitation of a suspend... But maybe, doesn't makes sense because it is a side effect... 🤔

[pakoito]

yyyyyep that’s why we did it 😄