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*/
/*
* @test
* @bug 4736963
* @summary Positive regression test from odersky
* @author odersky
*
* @compile Test.java
*/
class Test {
static <B> List<B> nil() { return new List<B>(); }
static <A> List<A> cons(A x, List<A> xs) { return xs.prepend(x); }
static <A> Cell<A> makeCell(A x) { return new Cell<A>(x); }
static <A> A id(A x) { return x; }
public static void main(String[] args) {
List<String> xs = nil();
List<String> ys = cons("abc", Test.<String>nil());
List<String> zs = Test.<String>nil().prepend("abc");
System.out.println(nil());
System.out.println(nil().length());
System.out.println(cons("abc", nil()));
System.out.println(nil().prepend("abc"));
System.out.println(nil().prepend(makeCell(null)));
System.out.println(cons(makeCell(null), nil()));
System.out.println(id(nil()));
System.out.println(id(nil()).length());
System.out.println(cons("abc", id(nil())));
System.out.println(id(nil()).prepend("abc"));
System.out.println(id(nil()).prepend(makeCell(null)));
System.out.println(cons(makeCell(null), id(nil())));
List<String> a =
args.length == 1 ? Test.<String>nil() : Test.<String>nil();
a = (List<String>) Test.<String>nil();
}
}