Unexpected executing halt

[tryggvigy]

I'm fiddling around with reasonml and ocaml core.

Problem

But the output should be:

I print
I don't

It seems like open Async.Std; halts executing some how.

I tried to find related issues but found nothing.
This looks like a issue but maybe I am missing something trivial?

Source files

jbuild

(jbuild_version 1)

(executable
 ((name main)
  (libraries (core async))
  (preprocess (pps (ppx_jane)))
 ))

main.re

open Core.Std;
print_endline "I print";
open Async.Std;
print_endline "I don't";

[anemator]

I don't think this is a jbuilder issue. Try calling never_returns (Scheduler.go ()) at the end of the file. You can use Control-C to exit when it blocks.

From RealWorldOCaml:

One of the most common newbie errors with Async is to forget to run the scheduler. It can be a bewildering mistake, because without the scheduler, your program won't do anything at all; even calls to printf won't reach the terminal.

[tryggvigy]

Aha! Thanks @anemator. This was my issue

[anemator]

You're welcome.

[dra27]

Do head over to our Discourse forum if you need any more help 🙂