why does a non-local return from an inline function, have to be passed through in a lambda? e.g.

returnFromInline { return }
    inline fun returnFromInline(ret: () -> Unit) {
            ret()
    }

but not

returnFromInline()
    inline fun returnFromInline() {
            return
    }

Java interop

It's not really Java interop, Java cannot use (most) inline functions at all. The reason here is, as far as I can tell, that a called function (inline or not) makes it's caller "magically" return something is too much "spooky action at a distance" to be feasible for Kotlin.

@diesieben07 You are right its not java interoperability, Nut the reason is because inline functions are not a function call like involving stacks and all, but rather reduced to lines of code when compiled, Thats the reason , to capture the state of variable a lambda is needed which is acatially a tyoe of

FunctionX