src/test/ui/self/arbitrary_self_types_raw_pointer_struct.rs

   1 // run-pass
   2 #![feature(arbitrary_self_types)]
   3
   4 use std::rc::Rc;
   5
   6 struct Foo(String);
   7
   8 impl Foo {
   9     unsafe fn foo(self: *const Self) -> *const str {
  10         (*self).0.as_ref()
  11     }
  12
  13     fn complicated_1(self: *const Rc<Self>) -> &'static str {
  14         "Foo::complicated_1"
  15     }
  16
  17     unsafe fn complicated_2(self: Rc<*const Self>) -> *const str {
  18         (**self).0.as_ref()
  19     }
  20 }
  21
  22 fn main() {
  23     let foo = Foo("abc123".into());
  24     assert_eq!("abc123", unsafe { &*(&foo as *const Foo).foo() });
  25     assert_eq!("Foo::complicated_1", std::ptr::null::<Rc<Foo>>().complicated_1());
  26     let rc = Rc::new(&foo as *const Foo);
  27     assert_eq!("abc123", unsafe { &*rc.complicated_2()});
  28 }