I m messing around with the new context receivers and I m se kotlinlang #getting-started

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Title

r

Ruckus

04/11/2022, 6:48 PM

I'm messing around with the new context receivers and I'm seeing what appears to be an issue, but I figured I'd ask here to make sure I'm not just doing something wrong. (see thread)

If I have

operator fun <T> T.invoke(action: context(T) () -> Unit) {
    action(this)
}

This works:

val action: context(String) () -> Unit = {
    length
}
"Test"(action)

but inlining

action

does not:

"Test" {
    length  // Unresolved reference: length
}

(The actual use case is of course a bit more complex, but that demonstrates the root issue.)

d

dmitriy.novozhilov

04/11/2022, 6:55 PM

Please report an issue kotl.in/issue

👍 1

r

Ruckus

04/11/2022, 7:00 PM

Done: https://youtrack.jetbrains.com/issue/KT-51941 I wasn't sure how to title it

y

Youssef Shoaib [MOD]

04/12/2022, 10:52 AM

This looks to be the same issue as KT-51243 I explained a workaround here, but TL;DR: rewrite it to be this:

sealed interface TypeWrapper<out A> {
    object IMPL: TypeWrapper<Nothing>
}
operator fun <T> T.invoke(action: context(T) (TypeWrapper<T>) -> Unit) {
    action(this, TypeWrapper.IMPL)
}

👍 1

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