2 struct Foo<A = (isize, char)> {
7 fn bar_int(&self) -> isize {
13 fn bar_char(&self) -> char {
20 let (i, c): (isize, char) = self.a;
21 assert_eq!(Foo { a: i }.bar_int(), i);
22 assert_eq!(Foo { a: c }.bar_char(), c);
26 impl<A: Clone> Foo<A> {
32 fn default_foo(x: Foo) {
33 let (i, c): (isize, char) = x.a;
38 assert_eq!(x.baz(), (1, 'a'));
41 #[derive(PartialEq, Debug)]
42 struct BazHelper<T>(T);
44 #[derive(PartialEq, Debug)]
45 // Ensure that we can use previous type parameters in defaults.
46 struct Baz<T, U = BazHelper<T>, V = Option<U>>(T, U, V);
49 default_foo(Foo { a: (1, 'a') });
51 let x: Baz<bool> = Baz(true, BazHelper(false), Some(BazHelper(true)));
52 assert_eq!(x, Baz(true, BazHelper(false), Some(BazHelper(true))));