src/test/ui/object-safety/object-safety-no-static.rs

   1 // Check that we correctly prevent users from making trait objects
   2 // from traits with static methods.
   3 //
   4 // revisions: curr object_safe_for_dispatch
   5
   6 #![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))]
   7
   8 trait Foo {
   9     fn foo() {}
  10 }
  11
  12 fn diverges() -> Box<dyn Foo> {
  13     //[curr]~^ ERROR E0038
  14     loop { }
  15 }
  16
  17 struct Bar;
  18
  19 impl Foo for Bar {}
  20
  21 fn main() {
  22     let b: Box<dyn Foo> = Box::new(Bar);
  23     //[object_safe_for_dispatch]~^ ERROR E0038
  24 }