The Helios language

The Helios language is a purely functional programming language, with a simple curly braces syntax. It is inspired by Go and Rust.


  • Readability is more important than writeability
  • Easily auditable, it should be easy to spot malicious code
  • Opinionated, there should be only one obvious way of doing things

Structure of this chapter

In this chapter we will refer to the Helios language simply as Helios.

We start this chapter by explaining the basic syntax of Helios, and then move onto higher level concepts like functions, structs and enums.

This chapter ends with a complete reference of the Helios builtins.