LocalFunctions.kt

package localfunctions

fun first(): (Int) -> Int {
	val func = fun(i: Int) = i + 1
	return func
}

fun second(): (String) -> String {
	val func2 = { s: String -> "$s!" }
	return func2
}

fun third(): () -> String {
	fun greet() = "Hi!"
	return ::greet
}

fun fourth() = fun() = "Hi!"

fun fifth() = { "Hi!" }

fun main() {
	val funRef1: (Int) -> Int = first()
	val funRef2: (String) -> String = second()
	val funRef3: () -> String = third()
	val funRef4: () -> String = fourth()
	val funRef5: () -> String = fifth()
	funRef1(42) 
	funRef2("xyz") 
    funRef3() 
    funRef4()
    funRef5() 
    first()(42) 
    second()("xyz")
    third()() 
    fourth()() 
    fifth()()
}