-- main.mcl -- $x = "i am x" # i am top-level class c2() { #$y = "i am y" $z = "i am y and " + $x $newx = $x + " and hello" } include c2 as f1 test $f1.z {} test $f1.x {} # tricky test $f1.newx {} -- OUTPUT -- Vertex: test[i am x] Vertex: test[i am x and hello] Vertex: test[i am y and i am x]