Ownership

All variable bindings have a scope where they are valid and it is an error to use a variable outside its scope:

1. struct Point(i32, i32);

3. fn main() {
4. {
5. let p = Point(3, 4);
6. println!("x: {}", p.0);
7. }
8. println!("y: {}", p.1);
9. }

• At the end of the scope, the variable is dropped and the data is freed.
• A destructor can run here to free up resources.
• We say that the variable owns the value.