# Spitfire

Spitfire is a new error resilient parser for Elixir.

The goal of the project is to make it easier for editor tooling to provide code intelligence for incomplete snippets of Elixir code.

## Progress

- [x] Parse all Elixir Syntax into core compatible AST.
- [x] Error resilience
- [x] Environment querying API

## Design

The project is a handwritten Pratt parser (a type of recursive descent parser). A hand written parser allows for better error tolerance as well as (hopefully) better error messages.

Pratt parsers are becoming very popular in the realm of error tolerant parsing. Projects that I have been watching and learning from include the `rustc` parser as well as the new [Prism](https://github.com/ruby/prism) parser for the Ruby project.

## Contributing

With the parser complete, the goal is now to improve error resilience, parsing speed, and improve the environment querying capabilities.

## Acknowledgements

I'd like to thank Thorsten Ball, the author of [Writing an Interpreter in Go](https://interpreterbook.com). I read this book a couple of years ago and built out the language from the book. Thorsten teaches you how to build a Pratt parser, which is really proving helpful for the development of Spitfire.

## License

MIT License

Copyright (c) 2023 Mitchell Hanberg

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
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