48 lines
974 B
Rust
48 lines
974 B
Rust
trait Trait {
|
|
fn xyz() -> bool;
|
|
}
|
|
|
|
impl Trait for dyn Send + Sync {
|
|
fn xyz() -> bool { false }
|
|
}
|
|
|
|
impl Trait for dyn Sync + Send {
|
|
//~^ ERROR conflicting implementations
|
|
fn xyz() -> bool { true }
|
|
}
|
|
|
|
trait Trait2 {
|
|
fn uvw() -> bool;
|
|
}
|
|
|
|
impl Trait2 for dyn Send + Sync {
|
|
fn uvw() -> bool { false }
|
|
}
|
|
|
|
impl Trait2 for dyn Sync + Send + Sync {
|
|
//~^ ERROR conflicting implementations
|
|
fn uvw() -> bool { true }
|
|
}
|
|
|
|
struct Foo<T: ?Sized>(T);
|
|
impl Foo<dyn Send + Sync> {
|
|
fn abc() -> bool { //~ ERROR duplicate definitions with name `abc`
|
|
false
|
|
}
|
|
}
|
|
|
|
impl Foo<dyn Sync + Send> {
|
|
fn abc() -> bool {
|
|
true
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
assert_eq!(<dyn Send + Sync>::xyz(), false);
|
|
assert_eq!(<dyn Sync + Send>::xyz(), true);
|
|
assert_eq!(<dyn Send + Sync>::uvw(), false);
|
|
assert_eq!(<dyn Sync + Send+ Sync>::uvw(), true);
|
|
assert_eq!(<Foo<dyn Send + Sync>>::abc(), false);
|
|
assert_eq!(<Foo<dyn Sync + Send>>::abc(), true);
|
|
}
|