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class

The class keyword declares a class: a nominal reference type that supports fields, methods, inheritance (via extends), and interface conformance (via implements).

Syntax & Example​

class Animal {
    name: string,

    pub fn speak() {
        print(f"{self.name} makes a sound");
    }
}

class Dog extends Animal {
    pub fn speak() {
        print(f"{self.name} barks");
    }
}

Use Cases​

  • Modeling reference-typed objects with identity and inheritance.
  • Building object hierarchies with shared and overridden behavior.
  • Combining fields, methods, and access modifiers in one declaration.

See also: Structs & Classes.