Work in Progress
We appreciate your interest in Mun, but you are a little early to the party. The Mun language and toolchain are still in the early stages of development and nowhere near production-ready. If that doesn't scare you, then please continue reading.
Make It or Break It
Your Make It or Break It Demo?
Mun v0.2, "You"Most Voted Submission
Season 1
Mission
The idea to create Mun originated out of frustration with the Lua dynamic scripting language that is extensively used for game development at Abbey Games.
Lua's hot reloading capabilities and LuaJIT's performance make it a great language for rapid prototyping of real-time applications - such as games - on PC. However, the language has performance issues on some mobile and console platforms - to which LuaJIT cannot deploy, the language lacks refactoring functionality, and does not scale well with modern technology.
Mun tries to take the best of both worlds to create a more robust, highly iterative, productive, and performant programming language.
Pillars
Hot Reloading
Mun natively supports hot reloading - the process of changing code and resources while an app is running - on all target platforms and consoles with marginal runtime overhead. Its runtime has useful error messages, and can easily be embedded into other languages.
Static Typing
Mun's type system eliminates an entire class of runtime errors and provides powerful IDE integration with auto-completion and refactoring tools allowing developers to focus on writing code.
Performance
Mun uses LLVM to compile to machine code that can be natively executed on any target platform, guaranteeing the best possible runtime performance.
Made for Creators
Games
Quickly iterate designs using Mun's hot reloading capabilities, without compromising performance.
Mobile & Console
Leverage Mun's cross compilation to unlock hot reloading for console and mobile development.
Robotics
Use Mun's toolchain to build, tweak, and deploy applications to your robot with zero downtime.
WebAssembly
Use the same Mun toolchain to build, test, and deploy content to the web using WebAssembly modules.
XR
Embed Mun into AR / MR / VR apps to unleash the power of creation in an immersive environment.
Syntax
The driving force behind the development of Mun is natively supported hot reloading for functions and data. As such, the language and its syntax will keep growing at the rate in which we add hot reloading-supported semantics.
We take inspiration from a range of application, scripting, and systems programming languages, but we also want the community's input in defining a syntax that you find comfortable to use. We will regularly tweet proposals for new syntax, so make sure to follow us.
- main
- v0.2
fn fibonacci(n: i32) -> i32 {
if n <= 1 {
n
} else {
fibonacci(n - 1) + fibonacci(n - 2)
}
}
// Comments: functions marked as `pub` can be called outside the module
pub fn main() {
// Native support for bool, f32, f64, i8, u8, u128, i128, usize, isize, etc
let is_true = true;
let var = 0.5;
// Type annotations are not required when a variable's type can be deduced
let n = 3;
let result = fibonacci(n);
// Adding a suffix to a literal restricts its type
let lit = 15u128;
let foo = record();
let bar = tuple();
let baz = on_heap();
}
// Both record structs and tuple structs are supported
struct Record {
n: i32,
}
// Struct definitions include whether they are allocated by a garbage collector
// (`gc`) and passed by reference, or passed by `value`. By default, a struct
// is garbage collected.
struct(value) Tuple(f32, f32);
struct(gc) GC(i32);
// The order of function definitions doesn't matter
fn record() -> Record {
// Mun allows implicit returns
Record { n: 7 }
}
fn tuple() -> Tuple {
// Mun allows explicit returns
return Tuple(3.14, -6.28);
}
fn on_heap() -> GC {
GC(0)
}
Recent blog posts
Release - Mun v0.4.0
December 12, 2022, The Mun TeamGuess who's back?! The previous Mun release dates back over one and a half years. Since then - slowly but steadily - we've been working towards Mun v0.4.0 and it's finally here!
This Month in Mun - May 2021
June 08, 2021, The Mun TeamThe core team is working on new features for Mun v0.4. The biggest feature will be dynamically sized arrays.
Support us
The Mun programming language is developed by a group of volunteers. To further advance the project, we welcome any and all:
Contribute Donate Engage Follow SponsorThanks
Mun would not exist without the hard work, time, and resources generously contributed by individuals and companies. We would like to thank everyone for making Mun a reality!
Individuals
Mun is developed by a community. We are very thankful to the community for all of its contributions.
Contributors SponsorsCorporate sponsors
Mun is supported by companies through the use of infrastructure or by (facilitating) donations