-- main.mcl --
import "fmt"

$list = ["a", "b", "c"]

$index = 42 # should be out of scope

for $index, $value in $list {

	$fn = func($x) {
		"hello" + $val
	}

	$val = " " + $value

	$s = fmt.printf("%s is %d", $fn("whatever"), $index)
	test [$s] {}
}
-- OUTPUT --
Vertex: test[hello a is 0]
Vertex: test[hello b is 1]
Vertex: test[hello c is 2]
