src/test/ui/traits/wf-object/maybe-bound.rs

   1 // Test that `dyn ... + ?Sized + ...` is okay (though `?Sized` has no effect in trait objects).
   2
   3 trait Foo {}
   4
   5 type _0 = dyn ?Sized + Foo;
   6 //~^ ERROR `?Trait` is not permitted in trait object types
   7
   8 type _1 = dyn Foo + ?Sized;
   9 //~^ ERROR `?Trait` is not permitted in trait object types
  10
  11 type _2 = dyn Foo + ?Sized + ?Sized;
  12 //~^ ERROR `?Trait` is not permitted in trait object types
  13 //~| ERROR `?Trait` is not permitted in trait object types
  14
  15 type _3 = dyn ?Sized + Foo;
  16 //~^ ERROR `?Trait` is not permitted in trait object types
  17
  18 fn main() {}