Language Boundaries

This page links to the comprehensive boundary documentation maintained in the repository.

Full Documentation

See BOUNDARIES.md for complete boundary analysis.

Quick Summary

Through comprehensive dogfooding, we've discovered:

✅ Working Features (v3.94.0)

  • Enum Unit Variants: enum Status { Success, Pending }
  • Enum Tuple Variants: enum Position { Pos(i32, i32, i32) }
  • Pattern Matching: Full support on enums
  • String Methods: .len(), .to_string(), .chars(), .nth()
  • Control Flow: for, while, if, match
  • Functions: Nested functions, closures
  • Collections: Basic string operations

⚠️ Known Limitations (v3.94.0)

  • Struct Runtime: Parser supports, runtime does not (yet)
  • vec! Macro: Parser supports, runtime does not (yet)
  • Some String Methods: .clone(), .push_str() not implemented
  • Inline Comments: Not supported in enum/struct blocks
  • Trailing Comments: After closing } cause parser errors

📊 Boundary Testing

  • VALID-005: 10/10 boundary tests passing (100%)
  • Performance: Identifier length 1-10K chars, nesting depth 1000+ levels
  • Complexity: 200+ LOC files, 15+ functions per file

Discovery Method

Boundaries discovered through:

  1. Pure Ruchy dogfooding (ruchy check, ruchy lint, ruchy run)
  2. Property-based testing (40,000+ test cases)
  3. Fuzz testing (250,000+ test cases)
  4. Systematic boundary analysis framework

Bug Discovery Protocol

When bugs are found:

  1. 🚨 STOP THE LINE immediately
  2. 📋 File detailed GitHub issue
  3. 🔬 Create minimal reproduction
  4. ⏸️ Wait for fix (no workarounds)
  5. ✅ Verify fix before resuming

See Bug Discovery Protocol for details.

Updates

Boundary documentation is continuously updated as new discoveries are made through dogfooding.

Last Major Update: October 19, 2025 (BOOTSTRAP-002 discoveries) Ruchy Version: v3.94.0