rust/tests/ui/where-clauses/where-clause-constraints-are-local-for-trait-impl.rs
2023-01-11 09:32:08 +00:00

24 lines
446 B
Rust

fn require_copy<T: Copy>(x: T) {}
struct Bar<T> { x: T }
trait Foo<T> {
fn needs_copy(self) where T: Copy;
fn fails_copy(self);
}
// Ensure constraints are only attached to methods locally
impl<T> Foo<T> for Bar<T> {
fn needs_copy(self) where T: Copy {
require_copy(self.x);
}
fn fails_copy(self) {
require_copy(self.x);
//~^ ERROR the trait bound `T: Copy` is not satisfied
}
}
fn main() {}