Custom getters and setters in a struct

Question

How do I create a custom getter or setter in a struct:

struct MyStruct {
  field1: int
}

impl MyStruct {

  //getter
  fn field1(self) -> int {
    // some calculations....
    // return the value...

  }

  //or
  //setter
  fn field1(self, value) {

  }

}

What's the truly Rust way to do that?

Answer 1

Rust does not have anything like Python or C♯ properties at present; foo.bar is only ever field access, never a method call. Often it makes sense to just make the field public, but if you don’t want to do that for reasons of safety or needing to have side-effects, having fn field1(&self) -> int and fn set_field1(&mut self, value: int) would be acceptable.