| This error indicates that the struct, enum or enum variant cannot be |
| instantiated from outside of the defining crate as it has been marked |
| as `non_exhaustive` and as such more fields/variants may be added in |
| future that could cause adverse side effects for this code. |
| |
| Erroneous code example: |
| |
| ```ignore (it only works cross-crate) |
| #[non_exhaustive] |
| pub struct NormalStruct { |
| pub first_field: u16, |
| pub second_field: u16, |
| } |
| |
| let ns = NormalStruct { first_field: 640, second_field: 480 }; // error! |
| ``` |
| |
| It is recommended that you look for a `new` function or equivalent in the |
| crate's documentation. |
