| #![feature(box_syntax)] |
| |
| // Test for what happens when a type parameter `A` is closed over into |
| // an object. This should yield errors unless `A` (and the object) |
| // both have suitable bounds. |
| |
| trait SomeTrait { |
| fn get(&self) -> isize; |
| } |
| |
| fn make_object1<A: SomeTrait>(v: A) -> Box<dyn SomeTrait + 'static> { |
| box v as Box<dyn SomeTrait + 'static> |
| //~^ ERROR the parameter type `A` may not live long enough |
| } |
| |
| fn make_object2<'a, A: SomeTrait + 'a>(v: A) -> Box<dyn SomeTrait + 'a> { |
| box v as Box<dyn SomeTrait + 'a> |
| } |
| |
| fn make_object3<'a, 'b, A: SomeTrait + 'a>(v: A) -> Box<dyn SomeTrait + 'b> { |
| box v as Box<dyn SomeTrait + 'b> |
| //~^ ERROR the parameter type `A` may not live long enough |
| } |
| |
| fn main() {} |