| //@ run-pass |
| #![recursion_limit="1024"] |
| #![allow(dead_code)] |
| |
| use std::mem; |
| |
| pub struct S0<T>(T,T); |
| pub struct S1<T>(Option<Box<S0<S0<T>>>>,Option<Box<S0<S0<T>>>>); |
| pub struct S2<T>(Option<Box<S1<S1<T>>>>,Option<Box<S1<S1<T>>>>); |
| pub struct S3<T>(Option<Box<S2<S2<T>>>>,Option<Box<S2<S2<T>>>>); |
| pub struct S4<T>(Option<Box<S3<S3<T>>>>,Option<Box<S3<S3<T>>>>); |
| pub struct S5<T>(Option<Box<S4<S4<T>>>>,Option<Box<S4<S4<T>>>>,Option<T>); |
| |
| trait Foo { fn xxx(&self); } |
| /// some local of #[fundamental] trait |
| trait Bar {} |
| |
| impl<T> Foo for T where T: Bar, T: Sync { |
| fn xxx(&self) {} |
| } |
| |
| impl Foo for S5<u8> { fn xxx(&self) {} } |
| |
| fn main() { |
| let s = S5(None,None,None); |
| s.xxx(); |
| assert_eq!(mem::size_of_val(&s.2), mem::size_of::<Option<u8>>()); |
| } |
