Kreyren / orion-lang

Orion lang is a lispy programming language that is strongly and statically typed.

Orion

Orion is a lisp inspired statically typed programming language written in Rust

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Install

To install orion you can either:

• Download binary from the releases.
• Run cargo install orion-cli

Help

To run the repl

• Run orion in a terminal

To execute a file

• Run orion <file> in a terminal (you can add the --debug option to display AST)

Examples

Factorial

(define factorial (lambda (n) {
    (var toret 1)
    (var i 2)
    (while (<= i n) {
        (set toret (* toret i))
        (set i (+ i 1))
    })
    (return toret)
}))

More or less game

(math:initRng)
(define toGuess (math:rand 1 100))
(var guessed 0)
(var tries 0)

(while (!= guessed toGuess) {
  (set tries (+ tries 1))
  (set guessed (static_cast "int" (input "Input number: ")))
  (if (< guessed toGuess) {
    (print "More !")
  } {
    (if (> guessed toGuess) {
      (print "Less !")
    })
  })
})
(print (+ "Well done, you found the number in " (+ (static_cast "string" tries) " tries")))

Documentation

• To learn the basics: Getting Started
• The standard library docs are available on the wiki

Performances

Ackermann(3, 3) - 500 runs

Language	Total	Average	Median	Amplitude
Nixt	63145ms	126ms	121ms	134ms
Orion	4398ms	8ms	8ms	13ms
Python	1.1e-4ms	2.24e-7ms	2.12e-7	3.77e-7ms

Pushing 1000 numbers to an array - 500 runs

Language	Total	Average	Median	Amplitude
Nixt	6602ms	13ms	12ms	29ms
Orion	5473ms	10ms	10ms	22ms
Python	5.44e-5ms	1.08e-7ms	9.98e-8ms	1.61e-7ms