Getting Fancy on Rubinius
summary
Fancy is a self‑hosted language running on Rubinius with a claim that a C++ interpreter and runtime of ~14,000 lines shrinks to 14,000→2–3,000 lines of Ruby plus ~10,000 lines of standard library after a port to Rubinius in two weeks and becomes faster. Language features include asynchronous message sends and futures, actors (demo with 4,000 actors uses thread‑per‑actor), first‑class blocks and docs, a 430‑line FancySpec test framework, FOC documentation generator and GitHub/Gem style package installs.
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chapters (20)
- 0:00Intro
- 1:08Motivation
- 3:31Inspirations
- 5:03Inspiration: Ruby
- 9:30Class & Method defs
- 15:03Flow Control
- 16:11Async & Actors
- 18:15Actor Ring Example
- 25:52Ruby Integration
- 28:00First Class: Blocks
- 28:37First Class: Documentation
- 32:49First Class: Methods
- 36:17Dynamic scoping
- 37:45fancypack
- 38:44Tooling
- 42:33Why Rubinius?
- 46:54Parser Combinator
- 48:17Pattern Matching
- 48:49Conclusions
- 50:19Other cool stuff








