How do the language teams build their own languages?
Key findings:
- Go: 3,428 owned TODOs (permanent, documenting limitations)
- Elixir: 127 version-gated TODOs (time-bombs with deadlines)
- Go: unsafe is 5th most-imported in its own source (1,304 times)
- Elixir: type system (13K lines) nearly as large as Kernel
- Go: 61 internal/ packages (shared-but-not-public pattern)
- Elixir: 1:1.2 test ratio vs Go's 1:3.3
- Both accept generated code, different delivery (checked-in vs compile-time)
Rodin