TODO.md

TypeScript Migration Status

✅ Completed (PR #602)

• Enhanced package/index.d.ts with comprehensive type definitions
• Added TypeScript type packages for better IDE support
• Improved Config and DevServerConfig interfaces
• Added missing properties (private_output_path, inline_css, env_prefix, etc.)
• All tests passing
• Zero JavaScript modifications (no whitespace changes)
• Full backward compatibility maintained

📋 Next Steps (Issue #605)

Phase 2: Core Module Conversion

• Convert package/config.js to TypeScript
• Convert package/env.js to TypeScript
• Convert package/index.js to TypeScript
• Convert package/utils/helpers.js to TypeScript

Phase 3: Environment & Build System

• Convert environment files (base, development, production, test)
• Convert dev_server.js
• Convert webpackDevServerConfig.js

Phase 4: Rules & Loaders (PR #620) ✅

• Convert all files in package/rules/
• Convert all files in package/plugins/
• Convert all files in package/optimization/

Phase 5: Framework-Specific Modules ✅

• Convert rspack support files
• Convert swc support files
• Convert esbuild support files
• Convert babel preset

Phase 6: Final Cleanup ✅

• Add TypeScript linting with @typescript-eslint
• Verify strict mode is enabled (already configured)
• Update documentation

Why Gradual Migration?

• Lower risk: Each phase can be tested independently
• Team learning: Get familiar with TypeScript incrementally
• Immediate value: Type definitions already provide IDE benefits
• No breaking changes: Users unaffected during migration

Related Links

• Original issue: #200
• Initial PR: #602
• Next steps issue: #605