| error[E0277]: the size for values of type `(dyn Foo + 'static)` cannot be known at compilation time |
| --> $DIR/feature-gate-unsized_fn_params.rs:17:8 |
| | |
| LL | fn foo(x: dyn Foo) { |
| | ^ doesn't have a size known at compile-time |
| | |
| = help: the trait `Sized` is not implemented for `(dyn Foo + 'static)` |
| = help: unsized fn params are gated as an unstable feature |
| help: you can use `impl Trait` as the argument type |
| | |
| LL | fn foo(x: impl Foo) { |
| | ~~~~ |
| help: function arguments must have a statically known size, borrowed types always have a known size |
| | |
| LL | fn foo(x: &dyn Foo) { |
| | + |
| |
| error[E0277]: the size for values of type `(dyn Foo + 'static)` cannot be known at compilation time |
| --> $DIR/feature-gate-unsized_fn_params.rs:21:8 |
| | |
| LL | fn bar(x: Foo) { |
| | ^ doesn't have a size known at compile-time |
| | |
| = help: the trait `Sized` is not implemented for `(dyn Foo + 'static)` |
| = help: unsized fn params are gated as an unstable feature |
| help: you can use `impl Trait` as the argument type |
| | |
| LL | fn bar(x: impl Foo) { |
| | ++++ |
| help: function arguments must have a statically known size, borrowed types always have a known size |
| | |
| LL | fn bar(x: &dyn Foo) { |
| | ++++ |
| |
| error[E0277]: the size for values of type `[()]` cannot be known at compilation time |
| --> $DIR/feature-gate-unsized_fn_params.rs:25:8 |
| | |
| LL | fn qux(_: [()]) {} |
| | ^ doesn't have a size known at compile-time |
| | |
| = help: the trait `Sized` is not implemented for `[()]` |
| = help: unsized fn params are gated as an unstable feature |
| help: function arguments must have a statically known size, borrowed slices always have a known size |
| | |
| LL | fn qux(_: &[()]) {} |
| | + |
| |
| error[E0277]: the size for values of type `(dyn Foo + 'static)` cannot be known at compilation time |
| --> $DIR/feature-gate-unsized_fn_params.rs:29:9 |
| | |
| LL | foo(*x); |
| | ^^ doesn't have a size known at compile-time |
| | |
| = help: the trait `Sized` is not implemented for `(dyn Foo + 'static)` |
| = note: all function arguments must have a statically known size |
| = help: unsized fn params are gated as an unstable feature |
| |
| error: aborting due to 4 previous errors |
| |
| For more information about this error, try `rustc --explain E0277`. |