| error[E0373]: closure may outlive the current function, but it borrows `prefix`, which is owned by the current function |
| --> $DIR/does-not-live-long-enough.rs:6:33 |
| | |
| LL | fn started_with<'a>(&'a self, prefix: &'a str) -> impl Iterator<Item=&'a str> { |
| | -- lifetime `'a` defined here |
| LL | self.data.iter().filter(|s| s.starts_with(prefix)).map(|s| s.as_ref()) |
| | ^^^ ------ `prefix` is borrowed here |
| | | |
| | may outlive borrowed value `prefix` |
| | |
| note: function requires argument type to outlive `'a` |
| --> $DIR/does-not-live-long-enough.rs:6:9 |
| | |
| LL | self.data.iter().filter(|s| s.starts_with(prefix)).map(|s| s.as_ref()) |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| help: to force the closure to take ownership of `prefix` (and any other referenced variables), use the `move` keyword |
| | |
| LL | self.data.iter().filter(move |s| s.starts_with(prefix)).map(|s| s.as_ref()) |
| | ++++ |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0373`. |
