mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 10:45:18 +00:00
29 lines
754 B
Rust
29 lines
754 B
Rust
// 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>>());
|
|
}
|