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Fundamentals: Program Structure

A Ara program consists of one or more files; there files must have the .ara, or .d.ara extension.

Every Ara file can contain zero or more top-level declarations. The top-level declarations are:

namespace
use
interface
class
enum
const
type
function

Example

namespace MyNamespace;

use MyOtherNamespace\MyOtherClass;

use function MyOtherNamespace\my_other_function;

use const MyOtherNamespace\MY_OTHER_CONST;

const int MY_CONST = 1;

type MyType = int;

interface MyInterface {
    // ...
}

class MyClass {
    // ...
}

enum MyEnum {
    // ...
}

function my_function(): void {
    // ...
}