| error[E0261]: use of undeclared lifetime name `'x` |
| --> $DIR/gat-in-trait-path-undeclared-lifetime.rs:6:35 |
| | |
| LL | fn _f(arg : Box<dyn for<'a> X<Y<'x> = &'a [u32]>>) {} |
| | ^^ undeclared lifetime |
| | |
| = note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html |
| help: consider making the bound lifetime-generic with a new `'x` lifetime |
| | |
| LL | fn _f(arg : Box<dyn for<'x, 'a> X<Y<'x> = &'a [u32]>>) {} |
| | +++ |
| help: consider introducing lifetime `'x` here |
| | |
| LL | fn _f<'x>(arg : Box<dyn for<'a> X<Y<'x> = &'a [u32]>>) {} |
| | ++++ |
| |
| error[E0582]: binding for associated type `Y` references lifetime `'a`, which does not appear in the trait input types |
| --> $DIR/gat-in-trait-path-undeclared-lifetime.rs:6:33 |
| | |
| LL | fn _f(arg : Box<dyn for<'a> X<Y<'x> = &'a [u32]>>) {} |
| | ^^^^^^^^^^^^^^^^^ |
| |
| error[E0582]: binding for associated type `Y` references lifetime `'a`, which does not appear in the trait input types |
| --> $DIR/gat-in-trait-path-undeclared-lifetime.rs:6:33 |
| | |
| LL | fn _f(arg : Box<dyn for<'a> X<Y<'x> = &'a [u32]>>) {} |
| | ^^^^^^^^^^^^^^^^^ |
| | |
| = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` |
| |
| error[E0582]: binding for associated type `Y` references lifetime `'a`, which does not appear in the trait input types |
| --> $DIR/gat-in-trait-path-undeclared-lifetime.rs:6:33 |
| | |
| LL | fn _f(arg : Box<dyn for<'a> X<Y<'x> = &'a [u32]>>) {} |
| | ^^^^^^^^^^^^^^^^^ |
| | |
| = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` |
| |
| error[E0038]: the trait `X` cannot be made into an object |
| --> $DIR/gat-in-trait-path-undeclared-lifetime.rs:6:19 |
| | |
| LL | fn _f(arg : Box<dyn for<'a> X<Y<'x> = &'a [u32]>>) {} |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `X` cannot be made into an object |
| | |
| note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> |
| --> $DIR/gat-in-trait-path-undeclared-lifetime.rs:2:8 |
| | |
| LL | trait X { |
| | - this trait cannot be made into an object... |
| LL | type Y<'x>; |
| | ^ ...because it contains the generic associated type `Y` |
| = help: consider moving `Y` to another trait |
| |
| error: aborting due to 5 previous errors |
| |
| Some errors have detailed explanations: E0038, E0261, E0582. |
| For more information about an error, try `rustc --explain E0038`. |