| error[E0033]: type `&dyn SomeTrait` cannot be dereferenced |
| --> $DIR/E0033-teach.rs:12:9 |
| | |
| LL | let &invalid = trait_obj; |
| | ^^^^^^^^ type `&dyn SomeTrait` cannot be dereferenced |
| | |
| = note: This error indicates that a pointer to a trait type cannot be implicitly dereferenced by a pattern. Every trait defines a type, but because the size of trait implementors isn't fixed, this type has no compile-time size. Therefore, all accesses to trait types must be through pointers. If you encounter this error you should try to avoid dereferencing the pointer. |
| |
| You can read more about trait objects in the Trait Objects section of the Reference: https://doc.rust-lang.org/reference/types.html#trait-objects |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0033`. |
