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class Foo : Object {
}
G ref_generic<G> (G o) {
return o;
}
Object ref (Object o) {
return o;
}
void main () {
var o = new Object();
var f = (ref (o)) as Foo;
assert (f == null);
assert (o.ref_count == 1);
var g = (ref_generic (o)) as Foo;
assert (g == null);
assert (o.ref_count == 1);
var r = ref_generic (o) as Object;
assert (r == o);
assert (o.ref_count == 2);
var r2 = o as Object;
assert (r2 == o);
assert (o.ref_count == 3);
unowned Object r3 = o as Object;
assert (r3 == o);
assert (o.ref_count == 3);
unowned Object r4 = o as Foo;
assert (r4 == null);
assert (o.ref_count == 3);
}
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