tests/ui/traits/issue-33140.rs

   1 trait Trait {
   2     fn xyz() -> bool;
   3 }
   4
   5 impl Trait for dyn Send + Sync {
   6     fn xyz() -> bool { false }
   7 }
   8
   9 impl Trait for dyn Sync + Send {
  10 //~^ ERROR conflicting implementations
  11     fn xyz() -> bool { true }
  12 }
  13
  14 trait Trait2 {
  15     fn uvw() -> bool;
  16 }
  17
  18 impl Trait2 for dyn Send + Sync {
  19     fn uvw() -> bool { false }
  20 }
  21
  22 impl Trait2 for dyn Sync + Send + Sync {
  23 //~^ ERROR conflicting implementations
  24     fn uvw() -> bool { true }
  25 }
  26
  27 struct Foo<T: ?Sized>(T);
  28 impl Foo<dyn Send + Sync> {
  29     fn abc() -> bool { //~ ERROR duplicate definitions with name `abc`
  30         false
  31     }
  32 }
  33
  34 impl Foo<dyn Sync + Send> {
  35     fn abc() -> bool {
  36         true
  37     }
  38 }
  39
  40 fn main() {
  41     assert_eq!(<dyn Send + Sync>::xyz(), false);
  42     assert_eq!(<dyn Sync + Send>::xyz(), true);
  43     assert_eq!(<dyn Send + Sync>::uvw(), false);
  44     assert_eq!(<dyn Sync + Send+ Sync>::uvw(), true);
  45     assert_eq!(<Foo<dyn Send + Sync>>::abc(), false);
  46     assert_eq!(<Foo<dyn Sync + Send>>::abc(), true);
  47 }