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README
Onyx - pragmatic, get-shit-done, beautiful, fast & stable programming
Enjoy writing apps that runs with trustworthy solid stability at speeds nearing C/C++ with the feeling of simply pseudo coding!
Onyx is / has Goal of
- Being pragmatic - get shit done! Does what you mean!
- OOP-structured (studies point to pros)
- Imperative (because it still is the only way for fast programs, and small processors get more and more use)
- Easy to code functional where possible (because it is safer, studies also say so)
- Concurrency, currently via channels and fibers - this area will get a lot of attention once the language settles. Because Moores Law is dead.
- Utilize scientific studies where available for the language design
- Human<->Code centric studies - not theoretical lambda-calculus
- Innovate freely to simply make a better language - think outside the box!
- Look at available prior art for inspiration as much as possible - remember the box!
- Compiles to high performance native machine code
- Compile fast in dev-mode for swift compile-test cycle
- Type system:
- Strongly typed - (Nil is a type) no more Java/C++/Go-null-exceptions bullshit!
- And still: almost global type inference (the fully global has been ditched for compilation speed reasons) - you can get away with almost never writing a type-name (basically only types has to be typed ;-) ).
- Inheritance (single! - no deadly diamond of death dilemma)
- Traits (mixins)
- All types re-openable (aka monkey patchable)
- Sum-types
- Polymorphism and overloading - most of the time: no cost over a straight call. The code is very efficient (you can't make it faster yourself in C :-) )
- Generics and type-vars - because Go is retarded.
- The behaviour of almost everything can be changed by coder
- Most constructs in the language is just an override away
- Operator overloading - of course
- Iterators are simply implemented as methods taking "fragments". And no, there's no execution overhead over a hand-written while-loop.
- Clean readable and writeable syntax
- The common forms of "casing" is allowed interchangeably (without conflicts):
dash-case
,snake_case
,endashâcase
,.camelCase
- A lot of research regarding the fundamentals of brain functioning used in programming points to spatiality and visual recognition of structure, that and comparative studies leads to the choice of indent based syntax.
- Also available are voluntary explicit block ends (wysiwym + safety net). The recommendation is to use
end
-tokens when it makes things clearer, otherwise not.
- The common forms of "casing" is allowed interchangeably (without conflicts):
- FFI: Using C-API libs is piece of cake
- Garbage Collected (even I, have accepted it as the way of the future - now: let's just make it even faster [post 1.0 target])
- Template-macros and AST-macros
- Full compatibility with Crystal lang modules - the language AST core - (any Crystal module can be used seamlessly in the same project) - this enlarges the module universe tremendously.
- It's hard for novel new-kid-on-the-block languages to get established when there are no libs (well, even then). Sharing a module universe with another language facilitates usage of both in the real world.
- Helpful error messages (will be improved more when the language spec has stabilized)
- The "Did you mean this:..." we've come to love in clang (compare gcc) - and even deeper analysis of likely errors
- I won't stop optimizing until hell freezes over. - The compiler should make things fast - you should focus on keeping your code maintainable.
- Modules, pretty much like name spaces
- Closures, of course
What Do You Mean With Scientific Approach?
Well, there aren't that many studies concerning coding directly. So admittedly the statement could be seen as kind of vague. The focus is on the actual process of a human being reading, writing and reasoning on code to accomplish a task, including prototyping, refining, re-factoring, etc.
What is not meant is "highly abstract functional lambda theory proofs from outer space when the cat is and isn't in the cradle and/or you give a shit".
Run Down
- Optimize for human readability (and writability) - not computers parsing (not lisp syntax uniformity). The compiler should work hard - not you!
- Any work should be enjoyable if we're smart about being human, so also coding.
- A language has to work for several scenarios, be elegantly out of the way when prototyping. Be lovingly tough on disciplined code when demanded by coder.
- A language has to work for a wide range of coders. Any team bigger than one will have mixed levels of experience and requirements, while still working on the same code base.
- Writing idiomatic clear code should be the optimized way of writing code, no "creative smart coding" to speed things up. It's the compilers job to make it run fast! (But sometimes you just need to dive into the black box)
- Some basic syntactic aspects has been shown to be important for all humans apt to math and especially coding (except females [!], exceptions noted) - and that is spatial cognition.
Relation to Crystal
Onyx is built upon the AST, most semantics and IR generation of Crystal. There are some additional semantics for more fine-grained control in some contexts. The syntax is entirely different. The actual machine code generation is done by LLVM, a god sent to language loving mankind! Currently, by internally flagging AST-nodes, Onyx can compile both Onyx and Crystal sources within the same program. Therefore great praise and credit goes out to the efforts of the Crystal team and the LLVM team, whom without Onyx would not be in this stage.
About Oscar Campbell
I've always loved linguistics, programming and manipulation of text (kind of a weird interest when you think about it). And a whole lot of other stuff not relevant to this. I coded my first language 25 years ago (when I was twelve). Well, it was called "CP Torsk 0.2", so not that serious. For the Amiga or Commodore 64 if I remember correctly.
Onyx is where the accumulated interest and experiences will distill to the optimal brew.
Inspiration
Most of Onyx is accumulated ideas with no basis in any of the modern languages. Fortunately, many concepts have ended up in similar ways as other new languages (we all have the same languages as reference, so we're bound to come up with similar ideas). I've then looked at the newer languages to see if they have some better ideas to steal from. Amateurs borrow - pros steal. So, inspiration has been taken from languages as diverse as LiveScript, Haskell, Nim, Go, Rust, Erlang, Python, Lisp, Swift, Scala, C++, LLVM-IR(!), etc. Sometimes syntax, sometimes semantics, sometimes just an idea inspired by some concept.
What does it look like currently?
GitHub doesn't accept highlighters until there are hundreds of repositories using it, so to view these with highlighting you currently have to resort to Sublime Text or Atom.
For Crystalers, the front page example in Onyx will be very familiar (lent the examples):
-- A very basic HTTP server
require "http/server"
server = HTTP.Server 8080, (request) ~>
HTTP.Response.ok "text/plain", "Hello world! You called me on {request.path} at {Time.now}!"
say "Listening on http://0.0.0.0:8080"
server.listen
A rather contrived example, just to show some basic constructs:
type Greeter
@greetingâphrase = "Greetings,"
init() ->
init(@greetingâphrase) ->
greet(whoâorâwhat) ->!
say makeâgreeting whoâorâwhat
makeâgreeting(whoâorâwhat) ->
"{@greetingâphrase} {whoâorâwhat}"
end
type HelloWorldishGreeter < Greeter
@greetingâphrase = "Hello"
end
ext HelloWorldishGreeter
greet(who-or-what) ->
previous-def(who-or-what).red
greeter = HelloWorldishGreeter "Goodbye cruel"
greeter.greet "world" -- => "Goodbye cruel world"
And with some added explanations:
-- Comments are started with two dashes - rather natural.
-- Types inherits `Reference` by default if nothing else specified.
-- All types begin with a capital
type Greeter
@greetingâphrase = "Greetings," -- member-vars are prefixed with `@`
-- separator (-|â|_) completely interchangeable so above can be referred
-- to as @greeting_phrase, @greeting-phrase etc. from _your_ code - should
-- you prefer a different style than a lib-author
init() -> -- init does nothing - just keep defaults
init(@greetingâphrase) ->
-- does nothing in body. Sugar for assigning a member in the parameter
-- did all we need! (the `@` prefix to parameter name)
-- above could have been written more verbose; in many different levels.
-- init(greetingâphrase Str) ->
-- @greetingâphrase = greetingâphrase
-- end -- ending expressions blocks, is implicit, but can be done
-- explicitly.
-- define a method that greets someone
greet(whoâorâwhat) ->! -- `!` is sugar notation for methods that returns
-- "nothing", it's ensured that ret val is nil
say makeâgreeting whoâorâwhat
-- say(makeâgreeting(whoâorâwhat)) -- parentheses or "juxtapos-calls"
-- a method that constructs the message
makeâgreeting(whoâorâwhat) ->
-- interpolation of exprs within strings is done with simple braces
"{@greetingâphrase} {whoâorâwhat}" -- last expression is returned
-- All on one line works too of course:
-- makeâgreeting(whoâorâwhat) -> "{@greetingâphrase} {whoâorâwhat}"
end -- as already mentioned, you can explicitly end code block at will
-- another type, inheriting Greeter
type HelloWorldishGreeter < Greeter
@greetingâphrase = "Hello"
end
-- re-open the type! Here using nest-token instead of indent (colon here)
ext HelloWorldishGreeter: greet(who-or-what) -> previous-def(who-or-what).red
greeter = HelloWorldishGreeter "Goodbye cruel"
-- Some variations for instantiating: (call syntax on a type is sugar
-- for calling a `new` function defined on the type):
-- greeter = HelloWorldishGreeter("Goodbye cruel")
-- greeter = HelloWorldishGreeter.new("Goodbye cruel")
-- greeter = HelloWorldishGreeter.new "Goodbye cruel"
greeter.greet "world" -- => "Goodbye cruel world"
Status
- Onyx is still in design-/RFC-stage. Input on the syntax and language in general are highly welcomed!
- It is tightening up, still some syntactic changes occur.
- Some syntax doesn't have semantics yet, until it gets carved deeper in the onyx. For example declaring func's
pure
, explicitlet
/mut
on params, etc.
Roadmap
See it's own issue.
Installing
You will want the highlighter for Sublime Text or Atom:
git clone https://github.com/ozra/sublime-onyx.git
. The Sublime and Atom highlighter will be kept up to date with changing language constructs. It should be easily portable to TextMate and LimeText.Clone the source tree:
git clone https://github.com/ozra/onyx-lang.git
cd
in to it andmake bootstrap
- to automatically download, install Crystal and compile and install Onyx. It's installed into/opt/onyx/
to keep it separated from your package-managed/usr/local/
. A link to the binary is made in/usr/local/bin/
.- You need
git
,wget
and some more stuff on your system (the scipt solves most on debian-based systems currently). - The script is unfortunately Debian-ish Linux centric atm. Anyone handy with other distros, Mac OS and Free BSF etc. are welcome to shape it up and PR.
- You need
Documentation
- For the language itself - see the issues in GitHub. Since the language is taking shape and changing - that serves both as current documentation and a way of chipping in. Syntax constructs are described there - look for tag "doubles-as-docs".
- Standard library docs are coming soon.
Onyx Project Code of Conduct
Whatever you think promotes and helps the language forward is enough for code of conduct for now. Cursing is fucking allowed, but not necessarily decreed. If someone is offended - you've probably been an asshole; acknowledge it and apologize. We can all stumble down that road some times. Apologizing is a strong and proud act.
Everyone with an interest is welcome, no matter where you come from linguistically or otherwise (creed, religion, sexual configuration or even musical taste). In fact different backgrounds are essential for a good project!
Community
Use "issues" for now. Add RFC's or ideas already if you feel like it!
There is also an IRC-channel now on freenode #onyx-lang
, I'll try to remember to login.
Read the general Contributing guide, (it's very terse, you will get through it!)
Contributing
Read the general Contributing guide, (it's very terse, you will get through it!):