- Add String.fromChar, chars, substring, toUpper, toLower, replace,
startsWith, endsWith, join to C backend
- Fix record type alias unification by adding expand_type_alias and
unify_with_env functions
- Update docs to reflect current implementation status
- Clean up outdated roadmap items and fix inconsistencies
- Add comprehensive language comparison document
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Many features were documented as "missing" or "planned" but are actually
working: generics, string interpolation, File/HTTP/Random/Time effects,
JSON parsing, module system, and JIT CLI integration.
Updated IMPLEMENTATION_PLAN.md, OVERVIEW.md with accurate status.
Added ROADMAP.md (use-case-targeted) and LANGUAGE_COMPARISON.md.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add string concatenation support to + operator in typechecker
- Register ADT constructors in both type environment and interpreter
- Bind handlers as values so they can be referenced in run...with
- Fix effect checking to use subset instead of exact match
- Add built-in effects (Console, Fail, State) to run block contexts
- Suppress dead code warnings in diagnostics, modules, parser
Update all example programs with:
- Expected output documented in comments
- Proper run...with statements to execute code
Add new example programs:
- behavioral.lux: pure, idempotent, deterministic, commutative functions
- pipelines.lux: pipe operator demonstrations
- statemachine.lux: ADT-based state machines
- tailcall.lux: tail call optimization examples
- traits.lux: type classes and pattern matching
Add documentation:
- docs/IMPLEMENTATION_PLAN.md: feature roadmap and status
- docs/PERFORMANCE_AND_TRADEOFFS.md: performance analysis
Add benchmarks for performance testing.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
