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.
- Parse all Elixir Syntax into core compatible AST.
- Error resilience
- Environment querying API
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 parser for the Ruby project.
With the parser complete, the goal is now to improve error resilience, parsing speed, and improve the environment querying capabilities.
I'd like to thank Thorsten Ball, the author of Writing an Interpreter in Go. 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.
MIT License
Copyright (c) 2023 Mitchell Hanberg
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