Struct Class

pub struct Class { /* private fields */ }

Represents a class in the language.

Instantiation

Using () operator after the class name will create a new instance of the class. The arguments passed to the operator will be passed to the init method of the class. The init method is optional and can be omitted. If the init method is omitted, the class will inherit the init method of its superclass (if any).

Methods

Methods are functions that are defined inside a class. They can be called on instances of the class. Methods can be defined by using the () operator after the method name. Methods can take any number of arguments.

Self Reference

Using this keyword will refer to the instance of the class that the method is being called on.

Inheritance

Using < operator will create a new class with the left-hand side as the superclass. The superclass is an optional object to another class that this class inherits from. When inheriting from a superclass, the subclass will inherit all the methods of the superclass. Prefixing a method call with super will call the superclass’s method of the same name.

Implementations

impl Class

pub fn new( name: String, superclass: Option<Object>, methods: HashMap<String, Function>, ) -> Self

Creates a new class with the given name, superclass (if any), and methods.

pub fn get_method(&self, name: &str) -> Option<Function>

Returns the method with the given name. If the method is not defined, it will return None. If the method is not defined in this class, it will inherit the method from its superclass (if any).

Trait Implementations

impl Callable for Class

fn arity(&self) -> usize

Returns the arity of the init method of the class. If the init method is not defined, it will return 0.

fn call( &self, interpreter: &mut Interpreter<'_>, arguments: Vec<Object>, ) -> Result<Object, RuntimeError>

Creates a new instance of the class and calls the init method on it. If the init method is not defined, it will inherit the init method of its superclass (if any).

impl Clone for Class

fn clone(&self) -> Class

Returns a duplicate of the value.

const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Class

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Class

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Class

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

const fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.