👨‍🚀 Rust Traits §

= interfaces/abstract base classes in 🦀 Rust

Types §

• 👨‍🚀 Rust Trait Derivation
• <T: Trait> -> Type T, which implements Trait “Trait”
  • multiple traits: <T: Trait1 + Trait 2>
• as trait object: dyn Trait
  • -> implement Trait T, dynamic size

When to use which? §

• Trait generics:
  • speed
  • not every trait can support trait objects
  • easy to bound generic type parameter with several traits at once
• Trait objects:
  • simple types, usage like Java interface
  • collection of values of myixed types, all together

Usage §

• Implementing a trait: impl TraitName for Type
• Subtype: trait SubTrait : SuperTryit {...}

📖 Example: §

trait Talker {
	fn talk(&mut self) -> String;
	fn listen(&mut self, text: String);
}