+####
+foo 1;
+bar 2;
+----
+foo, bar # () # [ 1 ], [ 2 ] # foo, bar
+####
+foo 1, foo(2), 3, bar(4, foo(bar, 5), 6);
+----
+foo, bar # @_ # [ 2 ], [ ], [ 5 ], [ 4, 5, 6 ], [ 1, 2, 3, 4, 5, 6 ] # foo, bar, foo, bar, foo
+####
+foo 0, sub {
+ foo $_[0], 2, $_[1]
+}->(1, 3), 4;
+----
+foo # @_ # [ 1, 2, 3 ], [ 0, 1, 2, 3, 4 ]