| #![feature(box_patterns)] | |
| #![feature(box_syntax)] | |
| trait MyTrait { | |
| fn dummy(&self) {} | |
| } | |
| pub enum TraitWrapper { | |
| A(Box<dyn MyTrait + 'static>), | |
| } | |
| fn get_tw_map(tw: &TraitWrapper) -> &dyn MyTrait { | |
| match *tw { | |
| TraitWrapper::A(box ref map) => map, //~ ERROR cannot be dereferenced | |
| } | |
| } | |
| pub fn main() {} |