src/test/ui/no-send-res-ports.rs

   1 // ignore-x86 FIXME: missing sysroot spans (#53081)
   2 use std::thread;
   3 use std::rc::Rc;
   4
   5 #[derive(Debug)]
   6 struct Port<T>(Rc<T>);
   7
   8 fn main() {
   9     #[derive(Debug)]
  10     struct Foo {
  11       _x: Port<()>,
  12     }
  13
  14     impl Drop for Foo {
  15         fn drop(&mut self) {}
  16     }
  17
  18     fn foo(x: Port<()>) -> Foo {
  19         Foo {
  20             _x: x
  21         }
  22     }
  23
  24     let x = foo(Port(Rc::new(())));
  25
  26     thread::spawn(move|| {
  27         //~^ ERROR `std::rc::Rc<()>` cannot be sent between threads safely
  28         let y = x;
  29         println!("{:?}", y);
  30     });
  31 }