In Rust, supertraits allow you to define a trait hierarchy where a derived trait requires another trait to be implemented first. This is useful when modeling interfaces that build upon or depend on other capabilities.
In this challenge, you will define two traits: Person
and Student
. The Person
trait provides the ability to retrieve a name, while the Student
trait extends Person
by adding additional fields specific to students, such as an ID and a field of study.
Define a trait Person
:
fn name(&self) -> String
that returns the name of the person.Define a trait Student
that is a supertrait of Person
:
fn id(&self) -> u32
to return the student ID.fn field_of_study(&self) -> String
to return the student's field of study.Implement both traits for a struct Undergraduate
:
Undergraduate
struct should have fields id
, name
, and field_of_study
.Student
trait to provide the student's ID, name, and field of study.If you're stuck, here are some hints to help you solve the challenge:
trait Student: Person {}
to define Student
as a supertrait of Person
.Person
and Student
for the Undergraduate
struct.self.name.clone()
and self.field_of_study.clone()
to return String
values without ownership issues.<YourType as YourTrait>::method_name()
.