Hi, gradle has an

execute()

extension function to execute a string as a command. Is there a similar extension for vanilla Kotlin that I can include in a kotlin script that doesn't depend on Gradle?

has anyone here got working a demo in kotlin with the panama ea jdk 17? Because I keep getting unresolved classes/interfaces..

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See the comments in the following Kotlin snippet. Why does the build fail when I have

android { kotlinOptions { languageVersion = "1.5" } }

in my module's build.gradle file? Also, I wonder if this feature is documented somewhere (and where, of course).

fun a(b: () -> Unit): Unit = TODO()

fun f(): Any? = TODO()
val p = a(::f) // OK

val g: KFunction0<Any?> = ::f
val q = a(g) // Fails: The feature "unit conversion" is disabled

val h: () -> Any? = ::f
val r = a(h) // Fails: The feature "unit conversion" is disabled

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截屏2021-06-12 下午6.21.32.png

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In this code

sealed class Parent() {
  data class Child(val value : String) : Parent()
}
data class Other(val value : Parent)

val child = Child("something")

Other(child as Parent)

I get an “Unchecked cast” warning. How is this so, surely the compiler knows that the

Child

is also a

Parent

?

so basically I get a warning trying to case one function type to another if what I’m trying to do is cast the input to it’s parent type

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