blob: 2d7e4ab39893d21da6c1809a22cd429d66af4749 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
// run-pass
use std::cell::Cell;
const NONE_CELL_STRING: Option<Cell<String>> = None;
struct Foo<T>(T);
impl<T> Foo<T> {
const FOO: Option<Box<T>> = None;
}
fn main() {
let _: &'static u32 = &42;
let _: &'static Option<u32> = &None;
// We should be able to peek at consts and see they're None.
let _: &'static Option<Cell<String>> = &NONE_CELL_STRING;
let _: &'static Option<Box<()>> = &Foo::FOO;
}
|