src/test/ui/suggestions/call-on-unimplemented-fn-ptr.rs

   1 struct Foo;
   2
   3 trait Bar {}
   4
   5 impl Bar for Foo {}
   6
   7 fn needs_bar<T: Bar>(_: T) {}
   8
   9 fn blah(f: fn() -> Foo) {
  10     needs_bar(f);
  11     //~^ ERROR the trait bound `fn() -> Foo: Bar` is not satisfied
  12     //~| HELP use parentheses to call this function pointer
  13 }
  14
  15 fn main() {}