Missing primitives in rely with JSOO

[Et7f3]

Hy I wanted to update https://github.com/bryphe/reason-gl-matrix to rely. I was able to convert to rely natively but I can't run when building with JSOO.

I have some repro on my fork on branch Et7f3/test/switch_to_rely or commit instead Et7f3/reason-gl-matrix@ec2fd9d

I quote some message from discord (https://ptb.discordapp.com/channels/235176658175262720/469417973820686336/641021659989540925).

Me:

For info it run fine on native with dune. I have tried only with a empty file that include Rely and I get some strange error maybe linked to str

@bandersongit

You can also look at https://github.com/aweis/irmin-web as a currently working example (though it does appear to be pinned to an older version of Rely)

Me:

I have seen in irmin-web they have added --profile=release flag. When I add it I get some other error.

@bandersongit

Looks like the issue with re is solveable by releasing a new version of Pastel

Pastel version should do it, got it working with a link to current master

also had to add a stub for unix_isatty for pastel,
I used

//Provides: unix_isatty

function unix_isatty (f) {
    return false;
};

I also changed your Testramework to

module MockSnapshotIO = {
  let readSnapshotNames = _ => [];
  let readFile: string => string = s => s;
  let removeFile: string => unit = _ => ();
  let writeFile: (string, string) => unit = (_, _) => ();
  let existsFile: string => bool = _ => false;
  let mkdirp = _ => ();
};
/* Snapshots will be virtual-modulified at some point, until then we need to inject
 * something custom with RelyInternal to make JSOO happy because the default snapshot
 * implementation uses the Unix module  */
include RelyInternal.TestFramework.MakeInternal(
          MockSnapshotIO,
          {
            let config =
              RelyInternal.TestFrameworkConfig.TestFrameworkConfig.initialize({
                snapshotDir: "test/__snapshots__",
                projectDir: "",
              });
          },
        );

[bandersongit]

@Et7f3 A new version of Pastel has been released. I'll spend some time in the next couple days making it so that snapshots don't cause these errors if they aren't being used.

[bandersongit]

I filed ocsigen/js_of_ocaml#913 to add unix_is_atty to JSOO along with my thoughts on implementation.

I've verified that your example now works if you provide a manual stub for unix_isatty, use the latest version of Pastel, and create a snapshot directory.

[Et7f3]

I'm blind I don't see where you fix str issue 👀.

[bandersongit]

I'm blind I don't see where you fix str issue 👀.

@Et7f3 I removed references to str here d3203ea, we just hadn't cut a Pastel release since then