| error[E0596]: cannot borrow data in an index of `HashMap<&str, String>` as mutable |
| --> $DIR/index-mut-help.rs:10:5 |
| | |
| LL | map["peter"].clear(); |
| | ^^^^^^^^^^^^ cannot borrow as mutable |
| | |
| = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `HashMap<&str, String>` |
| = help: to modify a `HashMap<&str, String>`, use `.get_mut()`, `.insert()` or the entry API |
| |
| error[E0594]: cannot assign to data in an index of `HashMap<&str, String>` |
| --> $DIR/index-mut-help.rs:11:5 |
| | |
| LL | map["peter"] = "0".to_string(); |
| | ^^^^^^^^^^^^ cannot assign |
| | |
| = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `HashMap<&str, String>` |
| help: to modify a `HashMap<&str, String>`, use `.get_mut()`, `.insert()` or the entry API |
| | |
| LL | map.insert("peter", "0".to_string()); |
| | ~~~~~~~~ ~ + |
| LL | map.get_mut("peter").map(|val| { *val = "0".to_string(); }); |
| | ~~~~~~~~~ ~~~~~~~~~~~~~~~~~~ ++++ |
| LL | let val = map.entry("peter").or_insert("0".to_string()); |
| | +++++++++ ~~~~~~~ ~~~~~~~~~~~~ + |
| |
| error[E0596]: cannot borrow data in an index of `HashMap<&str, String>` as mutable |
| --> $DIR/index-mut-help.rs:12:13 |
| | |
| LL | let _ = &mut map["peter"]; |
| | ^^^^^^^^^^^^^^^^^ cannot borrow as mutable |
| | |
| = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `HashMap<&str, String>` |
| = help: to modify a `HashMap<&str, String>`, use `.get_mut()`, `.insert()` or the entry API |
| |
| error: aborting due to 3 previous errors |
| |
| Some errors have detailed explanations: E0594, E0596. |
| For more information about an error, try `rustc --explain E0594`. |
