- 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- Clean up outdated roadmap items and fix inconsistencies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>
- JS_WASM_BACKEND_PLAN: Mark phases 1-5 complete, deprioritize WASM
- LANGUAGE_COMPARISON: Update package manager status
- OVERVIEW: Add completed features list
- ROADMAP: Mark JS backend and package manager complete
- Add PACKAGES.md documenting the package system
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements full pattern matching with variable binding for the C backend:
- Extract variable bindings from patterns (Var, Constructor, Tuple, Record)
- Infer C types for bound variables using variant field type tracking
- Handle recursive ADTs with pointer fields and heap allocation
- Dereference pointer bindings automatically for value semantics
Key implementation details:
- variant_to_type: Maps variant names to parent type for tag generation
- variant_field_types: Maps (type, variant) to field types for inference
- Recursive type fields use Type* pointers with malloc/memcpy
- Pattern bindings dereference pointers to maintain value semantics
Examples that now work:
- match opt { Some(x) => x, None => 0 }
- match tree { Leaf(n) => n, Node(l, r) => sum(l) + sum(r) }
Updates documentation to reflect C backend progress.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Remove Cranelift JIT compiler and expose the existing C backend as the
compilation target. Generated C code can be compiled with GCC/Clang.
Changes:
- Remove cranelift-* dependencies from Cargo.toml
- Delete src/compiler.rs (565 lines of Cranelift code)
- Add compile_to_c() function with -o and --run flags
- Fix C backend name mangling (main -> main_lux) to avoid conflicts
- Update CLI help text and documentation
Usage:
lux compile <file.lux> # Output C to stdout
lux compile <file.lux> -o out.c # Write to file
lux compile <file.lux> --run # Compile and execute
C backend supports: functions, basic types, operators, if/then/else,
records, enums, Console.print. Future work: closures, lists, patterns.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- SKILLS.md: Update roadmap phases with actual completion status
- Phase 0-1 complete, Phase 2-5 partial, resolved design decisions
- OVERVIEW.md: Add HttpServer, Test effect, JIT to completed features
- ROADMAP.md: Add HttpServer, Process, Test effects to done list
- VISION.md: Update Phase 2-3 tables with current status
- guide/05-effects.md: Add Time, HttpServer, Test to effects table
- guide/09-stdlib.md: Add HttpServer, Time, Test effect docs
- reference/syntax.md: Fix interpolation syntax, remove unsupported literals
- testing.md: Add native Test effect documentation
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Schema Evolution:
- Preserve version info in type resolution (Type::Versioned)
- Track versioned type declarations in typechecker
- Detect version mismatches at compile time (@v1 vs @v2 errors)
- Support @v2+ (at least) and @latest version constraints
- Store migrations for future auto-migration support
- Fix let bindings to preserve declared type annotations
HTTP Server Effect:
- Add HttpServer effect with listen, accept, respond, respondWithHeaders, stop
- Implement blocking request handling via tiny_http
- Request record includes method, path, body, headers
- Add http_server.lux example with routing via pattern matching
- Add type-checking test for HttpServer effect
Tests: 222 passing (up from 217)
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>
