ElixirScript is a source-to-source compiler that takes Elixir code and compiles it to JavaScript. It allows developers to write code in Elixir and compile it to run on the web. Some key features it supports include modules, functions, pattern matching, and protocols. However, it has some limitations like incomplete standard library support and buggy process handling. While interesting for research, it is not yet ready for production use due to lack of documentation and stability issues.

1. ESSENTIAL
JAVASCRIPT
ELIXIRSCRIPT
@rastopyr_ua

2. André Maginot

3. what is elixirscript?
source-to-source compiler
elixir -> javascript

4. success stories
• clojurescript
• closure compiler
• coffeescript
• typescript
• babel

5. How it happens
• pass code to elixir compiler
• compile(and get error messages)
• load modules(and expand macros)

6. transform ast
• convert to elixir ast
• transforms to Javascript AST
• transforms to Javascript CODE

7. show what you can
• most special forms
• modules
• functions
• pattern matching
• public macros
• protocols
• structs
• sigils
• bitstring

8. Primitive Mapping
elixir javascript
List Array
Map Object
Atom Symbol
Binary String
Integer,Float Number
Bitstring ErlangTypes.Bitstring
Tuple ErlangTypes.Tuple
PID ErlangTypes.PID
Reference ErlangTypes.Reference

9. limitations
• No OTP
• Buggy Processes
• Not all special forms
• No private macros
• incomplete standard library
• babel

10. JS interop
• spec compatible
• es6
• es5(legacy support)

11. JS interop
• web API
• window
• document
• html5

12. JS.<javascript operator name>
JS interop

13. build tools
• webpack
• brunch

14. Not optimized build

15. DEMO TIME

16. Future*
• not production ready yet
• not enough documentation
• increase support of standard library
• dependency resolution(oh god!)
• add support of source maps(really?)
• stable processes
*але е одне але

17. WebAssembly

18. Elixir Javascript
Binary format

19. CONCLUSIONS
• Very interesting for research
• Not ready for production

20. QUESTIONS?
Senin Roman