The Future of Understanding Ruby Code
summary
Claim is a single API for parsing Ruby lands in Ruby 3.3; the team builds Prism parser as a handwritten recursive‑descent parser, templates node code from YAML, and ships C, Ruby and serialized FFI APIs plus WASM. Integrations already hit CRuby JRuby Truffle Natalie and the parser gem, gives about 3x faster rubocop backend in one test, but many bugs remain. Tests brute‑force 90 encodings 154 aliases, and next focuses are error tolerance, round‑trip locations, and growing a contributor‑facing test suite.
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chapters (13)
- 0:00Introduction
- 1:57Why understanding Ruby matters
- 3:49Dependency tower of Ruby
- 7:49Fractured Ruby ecosystem
- 10:59Problem with Ruby parsers
- 13:27Introducing Prism parser
- 17:23Prism design goals
- 21:40Prism status and APIs
- 23:22Why handwritten parser
- 24:27Prism future plans
- 26:53Lowering tooling barriers
- 28:21Revisiting example
- 29:34Q&A
