src/with_clone.rs - anymap blob - Chris Morgan’s Git repositories

   1 use std::fmt;
   2
   3 #[doc(hidden)]
   4 pub trait CloneToAny {
   5     /// Clone `self` into a new `Box<Any>` object.
   6     fn clone_to_any(&self) -> Box<Any>;
   7 }
   8
   9 impl<T: Any + Clone> CloneToAny for T {
  10     fn clone_to_any(&self) -> Box<Any> {
  11         Box::new(self.clone())
  12     }
  13 }
  14
  15 #[doc(hidden)]
  16 /// Pretty much just `std::any::Any + Clone`.
  17 pub trait Any: ::std::any::Any + CloneToAny { }
  18
  19 impl<T: ::std::any::Any + Clone> Any for T { }
  20
  21 impl Clone for Box<Any> {
  22     fn clone(&self) -> Box<Any> {
  23         (**self).clone_to_any()
  24     }
  25 }
  26
  27 impl<'a> fmt::Debug for &'a Any {
  28     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  29         f.pad("&Any")
  30     }
  31 }
  32
  33 impl<'a> fmt::Debug for Box<Any> {
  34     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  35         f.pad("Box<Any>")
  36     }
  37 }