scoping, my dude

# announcements

[Shawn]

scoping, my dude

[Marko Mitic]

Extension function scoping is really powerful

[Stephan Schroeder]

you could transform this into an example of context oriented programming:

fun main() {
    val x = "test"
    with(Test) {
        val y: String = x[2..3]
    }
}

object Test {
    operator fun String.get(range: IntRange) = substring(range)
}

[max]

elaborating on @Stephan Schroeder's answer, if you want to reference y outside the with block, you can do

fun main() {
    val x = "test"
    val y: String = with(Test) {
        x[2..3]
    }
    println(y)
}

object Test {
    operator fun String.get(range: IntRange) = substring(range)
}