mirror of
https://github.com/rust-lang/rust
synced 2024-09-05 16:57:03 +00:00
12 lines
296 B
Rust
12 lines
296 B
Rust
trait Bound {}
|
|
struct NeedsBound<T: Bound>(T);
|
|
|
|
// Checks that we enforce that closure args are WF.
|
|
|
|
fn constrain_inner<T, F: for<'a> FnOnce(&'a (), NeedsBound<T>)>(_: T, _: F) {}
|
|
|
|
fn main() {
|
|
constrain_inner(1u32, |&(), _| ());
|
|
//~^ ERROR the trait bound `u32: Bound` is not satisfied
|
|
}
|