Trait supercow::DefaultFeatures [−] [src]

pub trait DefaultFeatures<'a>: Send + Sync + 'a {
    fn clone_boxed(&self) -> Box<DefaultFeatures<'a> + 'a>;
    fn self_address_mut(&mut self) -> *mut ();
}

The default shared reference type for Supercow.

This requires the shared reference type to be Clone, Send, and Sync, which thus disqualifies using Rc. This was chosen as the default since the inability to use Rc is generally a less subtle issue than the Supercow not being Send or Sync.

Required Methods

`fn clone_boxed(&self) -> Box<DefaultFeatures<'a> + 'a>`

Clone this value, and then immediately put it into a Box behind a trait object of this trait.

`fn self_address_mut(&mut self) -> *mut ()`

Returns the address of self.

This is used to disassemble trait objects of this trait without resorting to transmuting or the unstable TraitObject type.

Implementors

impl<'a, T: 'a + Send + Sync + Clone + Sized> DefaultFeatures<'a> for T