koolml

koolml is a meta-lang inspired programming language that compiles to javascript

Features:

• Regular expression based lexer
• Top-down recursive descent parser
• AST-walking interpreter
• REPL
• Javascript codegen
• Static typing

Known bugs

• String concat doesn't create a string, but a derived type of string

•   const x = new String("Hello") + new String("World")
    if (x instanceof String) { .... } // This results to false (why? why JS! why!!!!)

• The above doesn't work when matching a result of string concat

Koolml doesn't require any third-party libraries.

Built on top of Abrvalg.

Built using python3

What the language looks like:

  module App ->
    fun main() ->
      print("Hello, world")
      let greet: String = "Hello, " + "World"
      print(greet)

Aim of this language

• Learning principles of functional programmming from an imperative and OOP standpoint
• Functional programming on the web (on my own terms, no weird syntax and obscure language behavior)
• Create an alternative to JavaScript for using on my School projects (Web and CFB - computing Fundamentals B)

You can find more examples in tests directory.

How to try it:

    git clone https://github.com/akrylysov/abrvalg.git
    cd koolml
    python -m koolml # starts a REPL
    python -m koolml -r ./test/factorial.ml # compiles the file and runs it using nodejs
    python -m koolml -b ./test/factorial.ml # compiles the file to a javascript file (no running)