mirror of https://github.com/rust-lang/rust
27 lines
961 B
Rust
27 lines
961 B
Rust
// 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
|
|
}
|