I'm just starting to work with effects. It seems l...

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[Wesley Hartford]

I'm just starting to work with effects. It seems like the following code should be allowed:

sealed interface LeftResult
sealed interface DatabaseLeftResult: LeftResult
sealed interface ApiLeftResult: LeftResult

fun queryDatabase() = effect<DatabaseLeftResult, Int> { 42 }
fun submitNumber(number: Int) = effect<ApiLeftResult, Unit> { println(number) }
fun queryAndSubmit() = effect<LeftResult, Unit> {
  val number = queryDatabase().bind()
  submitNumber(number).bind()
}

However, both of the bind calls in queryAndSubmit result in an unresolved reference error. If I make queryDatabase and submitNumber use LeftResult on the left rather than the sub-interface, the code compiles. I can also change the bind call to .toEither().bind() and the code compiles. Shouldn't my original code compile though?

[simon.vergauwen]

Hey @Wesley Hartford,

What version are you using? Your code example compiles fine for me with 1.1.3.

[Wesley Hartford]

Ahh, I'm on 1.1.2, I've been putting off the upgrade. I'll test that out now.

[Wesley Hartford]

Thank you @simon.vergauwen, Upgrading to 1.1.3 fixed that issue.