1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
// All lifetime parameters in struct constructors are currently considered early bound,
// i.e., `S::<ARGS>` is interpreted kinda like an associated item `S::<ARGS>::ctor`.
// This behavior is a bit weird, because if equivalent constructor were written manually
// it would get late bound lifetime parameters.
// Variant constructors behave in the same way, lifetime parameters are considered
// belonging to the enum and being early bound.
// https://github.com/rust-lang/rust/issues/30904
struct S<'a, 'b>(&'a u8, &'b u8);
enum E<'a, 'b> {
V(&'a u8),
U(&'b u8),
}
fn main() {
S(&0, &0); // OK
S::<'static>(&0, &0);
//~^ ERROR struct takes 2 lifetime arguments
S::<'static, 'static, 'static>(&0, &0);
//~^ ERROR struct takes 2 lifetime arguments
E::V(&0); // OK
E::V::<'static>(&0);
//~^ ERROR enum takes 2 lifetime arguments
E::V::<'static, 'static, 'static>(&0);
//~^ ERROR enum takes 2 lifetime arguments
}
|
