# Dumpling TODO - Comprehensive JavaScript Runtime & Toolchain
## Implemented (Recent)
- [x] **JavaScript Execution** - Boa engine integration for running bundled JS
- [x] **HTTP Dev Server** - Static file serving with proper content types
- [x] **npm Registry** - Fetch and install packages from registry.npmjs.org
- [x] **Run Script** - `dumpling run-script <name>` to run package.json scripts
- [x] **Process.env** - Basic process object with env for Node compatibility
- [x] **Require/module.exports** - Full CJS support in bundler
- [x] **Node.js Built-ins** - util, path, fs, os, buffer, etc. stubs for npm compatibility
- [x] **Package.json Exports** - Full exports field support (subpaths, conditional exports)
- [x] **Enhanced Error Messages** - Error source chain display for debugging
- [x] **Parallel Install** - Multiple explicit packages install concurrently (try_join_all)
- [x] **Lock File** - package-lock.json for deterministic installs
- [x] **Source Maps** - `--sourcemap` flag for bundle command
- [x] **JSON Imports** - require('./data.json') support
- [x] **HMR** - Dev server file watcher with polling-based live reload
- [x] **CSS Bundling** - require('./style.css') injects styles into document
- [x] **Package Download Caching** - Tarballs cached in ~/.cache/dumpling
- [x] **Incremental Bundle Caching** - .dumpling/cache for unchanged inputs
- [x] **Process.env** - Real environment variables, process.platform, process.arch
- [x] **Object.hasOwn** - ES2022 polyfill
- [x] **Uninstall** - dumpling uninstall <packages>
- [x] **Error Overlay** - Runtime error overlay in dev server
- [x] **Prune** - dumpling prune removes unused packages
## Core Runtime Features
### JavaScript Engine
- [ ] **Performance Optimizations**
- [ ] JIT compilation integration with Cranelift
- [ ] Inline caching for property access
- [ ] Optimized garbage collection
- [ ] Bytecode interpreter for hot paths
- [ ] SIMD and WebAssembly integration
- [ ] **ES202X Feature Support**
- [ ] Top-level await
- [ ] Optional chaining (?.) and nullish coalescing (??)
- [ ] Private class fields and methods
- [ ] Temporal API implementation
- [ ] Array.prototype.findLast/LastIndex
- [ ] RegExp match indices (/d flag)
- [x] Object.hasOwn()
- [ ] **TypeScript Support**
- [ ] Built-in TypeScript transpiler
- [ ] Type checking integration
- [ ] TSConfig.json support
- [ ] Source map generation
- [ ] Declaration file (.d.ts) generation
### Module System
- [ ] **Enhanced Module Resolution**
- [ ] Package.json exports field full support
- [ ] Conditional exports (browser, node, default)
- [ ] Subpath imports/exports
- [ ] Import assertions (JSON, WASM)
- [ ] Import maps support
- [ ] Workspace monorepo support
- [ ] **Node.js Compatibility**
- [ ] Complete Node.js API polyfills
- [ ] Built-in modules (fs, path, crypto, etc.)
- [ ] Node.js event emitter
- [ ] Stream implementation
- [ ] Buffer API parity
- [ ] Process environment simulation
## Advanced Tooling Features
### Bundler & Optimizer
- [ ] **Code Splitting**
- [ ] Automatic code splitting
- [ ] Route-based splitting
- [ ] Vendor chunk optimization
- [ ] Dynamic import handling
- [ ] **Advanced Optimizations**
- [ ] Tree shaking with precise analysis
- [ ] Dead code elimination
- [ ] Constant folding
- [ ] Function inlining
- [ ] Property mangling
- [ ] CSS-in-JS extraction and optimization
- [ ] **Asset Processing**
- [x] Built-in CSS bundling
- [ ] PostCSS integration
- [ ] Image optimization (WebP, AVIF)
- [ ] Font optimization
- [ ] Asset hashing and caching
### Development Experience
- [ ] **Hot Module Replacement (HMR)**
- [ ] Fast refresh for React components
- [ ] HMR for Vue, Svelte, Angular
- [x] CSS HMR without page reload
- [ ] State preservation during HMR
- [x] Error overlay
- [ ] **Developer Tools**
- [ ] Built-in debugging with Chrome DevTools
- [ ] Performance profiling
- [ ] Memory leak detection
- [ ] Bundle analyzer visualization
- [ ] Source map debugging
## Package Management
### Registry & Distribution
- [ ] **Package Registry**
- [ ] Built-in package registry server
- [ ] npm registry compatibility
- [ ] Private registry support
- [ ] Package signing and verification
- [ ] Semantic versioning enforcement
- [ ] **Installation Performance**
- [ ] Parallel package downloads
- [x] Intelligent caching strategy
- [ ] Lock file optimization
- [x] Dependency pruning
- [ ] Peer dependency resolution
### Advanced Package Features
- [ ] **Package Management**
- [ ] Workspaces support
- [x] Scoped packages (install/uninstall)
- [ ] Package overrides
- [ ] Optional dependencies
- [ ] Bundle size analysis
- [ ] **Security Features**
- [ ] Dependency vulnerability scanning
- [ ] Automatic security updates
- [ ] License compliance checking
- [ ] Supply chain security
- [ ] Package integrity verification
## Testing & Quality Assurance
### Testing Framework
- [ ] **Built-in Test Runner**
- [ ] Jest-compatible API
- [ ] TypeScript testing support
- [ ] Coverage reporting
- [ ] Snapshot testing
- [ ] Performance benchmarking
- [ ] **Testing Features**
- [ ] Mock and spy utilities
- [ ] Async/await testing
- [ ] Browser testing via Puppeteer
- [ ] Component testing
- [ ] Visual regression testing
### Code Quality
- [ ] **Linting & Formatting**
- [ ] ESLint integration
- [ ] Prettier integration
- [ ] TypeScript compiler integration
- [ ] Custom lint rules
- [ ] Automatic code fixing
## Performance & Reliability
### Runtime Performance
- [ ] **Startup Optimization**
- [ ] Lazy loading of modules
- [ ] Precompiled binaries
- [ ] Startup time benchmarking
- [ ] Memory usage optimization
- [ ] **Scalability**
- [ ] Cluster mode support
- [ ] Worker thread management
- [ ] Load balancing
- [ ] Resource limits and quotas
### Reliability Features
- [ ] **Error Handling**
- [ ] Enhanced error messages
- [ ] Error source maps
- [ ] Automatic error reporting
- [ ] Crash recovery
- [ ] Graceful degradation
## Cloud & DevOps Integration
### Deployment
- [ ] **Build & Deploy**
- [ ] Docker integration
- [ ] Cloud platform deployment
- [ ] Serverless function bundling
- [ ] Edge computing optimization
- [ ] CDN integration
- [ ] **CI/CD Integration**
- [ ] GitHub Actions workflows
- [ ] GitLab CI templates
- [ ] Jenkins plugin
- [ ] Automated testing pipelines
- [ ] Deployment automation
### Observability
- [ ] **Monitoring**
- [ ] APM integration (New Relic, DataDog)
- [ ] Logging framework
- [ ] Metrics collection
- [ ] Distributed tracing
- [ ] Health checks
## Advanced Integrations
### Framework Support
- [ ] **Frontend Frameworks**
- [ ] React 18+ features (Concurrent Mode, Server Components)
- [ ] Vue 3 composition API
- [ ] Svelte 5+ features
- [ ] Angular standalone components
- [ ] Solid.js optimizations
- [ ] **Backend Frameworks**
- [ ] Express.js compatibility
- [ ] Fastify integration
- [ ] Koa.js middleware support
- [ ] GraphQL server implementation
- [ ] gRPC support
### Database Integration
- [ ] **ORM Support**
- [ ] Prisma integration
- [ ] TypeORM compatibility
- [ ] Sequelize polyfill
- [ ] Mongoose support
- [ ] Database migration tools
## Competitive Advantages
### Performance Differentiators
- [ ] **Speed Innovations**
- [ ] Rust-based compilation to native binaries
- [ ] Zero-config performance optimization
- [x] Incremental compilation caching
- [ ] Parallel processing at compiler level
- [ ] Memory-efficient algorithms
- [ ] **Developer Experience**
- [ ] Instant feedback loops
- [ ] Predictable build times
- [ ] Minimal configuration required
- [ ] Intuitive error messages
- [ ] Zero-dependency core runtime
### Innovation Features
- [ ] **Next-Gen Capabilities**
- [ ] WebAssembly-first architecture
- [ ] Edge computing optimization
- [ ] AI-assisted development tools
- [ ] Real-time collaboration features
- [ ] Progressive web app generation
- [ ] **Ecosystem Advantages**
- [ ] Unified toolchain (no configuration needed)
- [ ] Cross-platform consistency
- [ ] Built-in security best practices
- [ ] Automatic performance optimization
- [ ] Energy-efficient processing
## Migration & Compatibility
### Migration Tools
- [ ] **Existing Project Migration**
- [ ] Webpack to Dumpling migration tool
- [ ] Vite configuration converter
- [ ] npm scripts to Dumpling commands
- [ ] Create React App migration
- [ ] Next.js compatibility layer
- [ ] **Backward Compatibility**
- [ ] npm API compatibility
- [ ] Node.js runtime API
- [ ] CommonJS module support
- [ ] Legacy browser support
- [ ] Polyfill management
## Documentation & Community
### Documentation
- [ ] **Comprehensive Docs**
- [ ] Interactive tutorials
- [ ] API reference with examples
- [ ] Best practices guide
- [ ] Migration guides
- [ ] Video tutorials
- [ ] **Community Features**
- [ ] Plugin marketplace
- [ ] Community templates
- [ ] Contribution guidelines
- [ ] Bug bounty program
- [ ] Conference talks and workshops
## Future Roadmap
### Long-term Vision
- [ ] **Next 2 Years**
- [ ] Full TypeScript compiler integration
- [ ] Component-based architecture support
- [ ] Machine learning optimization
- [ ] Quantum computing exploration
- [ ] **Next 5 Years**
- [ ] Distributed computing capabilities
- [ ] AI-driven development assistants
- [ ] Advanced security frameworks
- [ ] Cross-language compilation
### Research Areas
- [ ] **Experimental Features**
- [ ] Just-in-time compilation research
- [ ] Memory optimization techniques
- [ ] Security vulnerability prevention
- [ ] Performance benchmarking studies