Code Structure

Comments

// This is a single line comment.
/*
This is a multiline comment.
*/

You can use comments to make reminders, notes, or similar things in your code.

Entry point

In Rivet, the entry point of a program is a function named main.

func main() {
    // code goes here
}

Top-level declarations

On the top level only declarations are allowed.

import "module" { import_list, ... };

const Foo: int32 = 0;

let Foo: int32 = 0;

type Foo = int32;

trait Foo { /* ... */ }

struct Foo { /* ... */ }

enum Foo { /* ... */ }

extend Foo { /* ... */ }

func foo() { /* ... */ }

test "Foo" { /* ... */ }