Rust for C-Programmers

9.7 The self Parameter

9.7.1 Different Forms of self

• self: Takes ownership of the instance.
• &self: Borrows the instance immutably.
• &mut self: Borrows the instance mutably.

9.7.2 Choosing the Right Form

• Use &self when you only need to read data.
• Use &mut self when you need to modify data.
• Use self when you need to consume the instance.