custom `validate()` method not being used when running `mp exec`?

[aars]

I have to define typeclass: '*', which apparently is not an issue when running through test-machinepack-mocha.

https://github.com/aars/machinepack-test-issue#machinepack-exec-oddity

[aars]

I believe this issue originates here: https://github.com/node-machine/machinepack-localmachinepacks/blob/master/machines/run-machine-interactive.js#L189

Where the typeSchema is only used for parsing and validation. I'm not sure how to elegantly solve this. My first guess would be to set typeSchema to '*' when inputDef.validate is defined and use that after rttc.parseHuman.

[mikermcneil]

Hey @aars, super late reply, sorry about that. For now, we've shifted away from working with the custom validate() function in the tooling other than the machine runtime, since it can't be statically analyzed. I think the way to do this is probably to have the validate function float on top of the exemplar. So you're right, in this case, you'd probably want to use a typeclass-style generic exemplar like *, {}, or === (keep in mind that, in the latter case, you'd be sending in a mutable reference).