Pattern Matching in Ruby
summary
Proposes a concrete pattern‑matching spec for Ruby and shows a working implementation by modifying parse.y to parse a new %p pattern literal and inject matching code into the AST, compiled to bytecode. Demonstrates array, hash, nested and regex guard patterns, class checks and variable binding; examples successfully bind matched values. Implementation is released as a Ruby library, is functional though still limited and buggy, and supports pattern matching without external gems.
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chapters (7)
- 0:00Introduction and goals
- 2:23Demonstrating pattern matching
- 5:31Concepts and inspiration
- 10:44Proposal and examples
- 19:41Internal implementation
- 24:18Closing and acknowledgments
- 26:14Q&A session
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