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diff --git a/js/scripting-lang/design/PROJECT_ROADMAP.md b/js/scripting-lang/design/PROJECT_ROADMAP.md deleted file mode 100644 index 3ec63ff..0000000 --- a/js/scripting-lang/design/PROJECT_ROADMAP.md +++ /dev/null @@ -1,182 +0,0 @@ -# Project Roadmap: Scripting Language Development - -## Current Status Overview - -We have successfully implemented a combinator-based scripting language with function composition capabilities. The language supports juxtaposition-based function application, operator translation to combinators, and a comprehensive standard library. **The `@` syntax for function references is now working correctly** and the standard library test passes. - -## Completed Features ✅ - -### Core Language Features -- **Lexer**: Tokenizes source code with support for all operators and keywords -- **Parser**: AST generation with combinator-based operator translation -- **Interpreter**: Evaluates AST with lexical scoping and function support -- **Standard Library**: Comprehensive combinator functions (add, subtract, multiply, etc.) - -### Function Composition & @ Operator (Recently Implemented) ✅ -- **`@` operator**: Function reference syntax (`@f` → function reference) - **WORKING** -- **Enhanced `compose` and `pipe`**: Binary functions with partial application support - **WORKING** -- **Standard Library Functions**: `reduce`, `fold`, `curry` now handle partial application correctly - **WORKING** -- **Backward compatibility**: All existing code continues to work - -## Current Issues 🔧 - -### Priority 1: Case Expression Parsing (Active) -**Status**: In progress - parser needs refinement for multiple case handling -**Problem**: "Unexpected token in parsePrimary: THEN" errors in case expressions -**Impact**: High - affects pattern matching and control flow -**Root Cause**: `parseWhenExpression` function doesn't properly handle boundaries between cases -**Solution**: Refine the result parsing logic in `parseWhenExpression` - -**Affected Tests**: -- Case Expressions (07_case_expressions.txt) -- First-Class Functions (08_first_class_functions.txt) -- Error Handling (14_error_handling.txt) -- Pattern Matching Integration (integration_02_pattern_matching.txt) -- Functional Programming Integration (integration_03_functional_programming.txt) - -### Priority 2: Cascading Parser Issues (Related to Case Expressions) -**Status**: Identified, related to case expression parsing -**Problem**: Various "Unexpected token in parsePrimary" errors in other tests -**Impact**: Medium - affects development workflow -**Solution**: Fix case expression parsing first, then address related issues - -**Issues**: -- "Unexpected token in parsePrimary: PLUS" (Edge Cases) -- "Unexpected token in parsePrimary: DOT" (Advanced Tables) -- "Unexpected token in parsePrimary: ASSIGNMENT" (Pattern Matching) - -### Priority 3: Standard Library Edge Cases (Minor) -**Status**: Identified, low priority -**Problem**: Some standard library functions still have issues with complex usage patterns -**Impact**: Low - affects advanced usage scenarios -**Solution**: Enhance standard library function robustness - -## Implementation Plans 📋 - -### Active Plans - -#### 1. Case Expression Parsing Fix (Current Priority) -**Status**: In progress -**Risk**: Medium - -**Approach**: -1. **Analyze**: Understand exact parsing flow in `parseWhenExpression` -2. **Refine**: Improve result parsing to handle case boundaries correctly -3. **Test**: Verify with comprehensive case expression tests -4. **Fix Related**: Address cascading parser issues - -#### 2. Function Composition (Completed) ✅ -**Status**: ✅ Implemented and Working -**Achievements**: -- `@` operator working correctly -- Standard library test passing -- Function references working in all contexts -- Partial application handling improved - -### Completed Plans - -#### 1. Implementation Guide (Completed) ✅ -**Location**: `design/implementation/IMPLEMENTATION_GUIDE.md` -**Status**: ✅ Completed -**Achievements**: Function composition and `@` operator implementation - -## Architecture Documentation 📚 - -### Core Concepts -- **`COMBINATORS.md`**: Explains the combinator-based architecture -- **`DOCUMENTATION_SUMMARY.md`**: Overview of language features and syntax - -### Analysis Documents -- **`PRECEDENCE_ANALYSIS.md`**: Deep dive into precedence issues (may need updates) -- **`PRECEDENCE_TEST_CASES.md`**: Comprehensive test cases for precedence - -## Development Workflow 🔄 - -### Current Process -1. **Identify Issue**: Document in analysis document -2. **Create Plan**: Move to `implementation/` directory -3. **Implement**: Follow phased approach -4. **Test**: Use comprehensive test suites -5. **Document**: Update relevant documentation - -### Quality Assurance -- **Test-Driven**: All changes must pass comprehensive test suites -- **Backward Compatible**: Existing code must continue to work -- **Documented**: All changes must be documented - -## Immediate Next Steps 🎯 - -### Step 1: Case Expression Parsing (Current) -1. Debug `parseWhenExpression` function thoroughly -2. Implement proper case boundary detection -3. Test with all case expression tests -4. Fix related parser issues - -### Step 2: Test Suite Cleanup -1. Update failing tests to work with fixed parser -2. Add new tests for edge cases -3. Documentation updates - -### Step 3+: Future Enhancements -1. **I/O Enhancements**: Implement `..listen` and `..emit` -2. **Performance**: Optimize parser and interpreter -3. **Documentation**: Complete language reference - -## Success Metrics 📊 - -### Technical Metrics -- **Test Coverage**: 100% of test suite passes (currently 8/18) -- **Performance**: No significant performance regression -- **Compatibility**: All existing code continues to work - -### Quality Metrics -- **Documentation**: All features documented -- **Examples**: Comprehensive examples for all features -- **Error Messages**: Clear, helpful error messages - -## Risk Assessment ⚠️ - -### Low Risk -- Case expression parsing (well-understood problem) -- Test suite updates (mechanical changes) - -### Medium Risk -- Potential regressions in existing functionality -- Performance impact of parser changes - -### High Risk -- Breaking changes to language syntax -- Major architectural changes - -## Communication 📢 - -### Documentation Strategy -- **Analysis**: Keep in main `design/` directory -- **Implementation**: Move to `design/implementation/` directory -- **Architecture**: Keep core concepts in main `design/` directory - -### Review Process -- **Design Reviews**: Before implementation begins -- **Code Reviews**: After implementation, before merging -- **Documentation Reviews**: After feature completion - -## Key Achievements 🏆 - -### Recently Completed -1. **@ Operator**: Function reference syntax working perfectly -2. **Standard Library**: All higher-order functions working with @ syntax -3. **Partial Application**: Fixed `reduce`, `fold`, `curry` functions -4. **Function Composition**: Enhanced `compose` and `pipe` functions - -### Current Focus -1. **Case Expressions**: Fix parsing for multiple case handling -2. **Parser Robustness**: Address cascading parser issues -3. **Test Suite**: Get all tests passing - -## Conclusion - -We have successfully implemented the core function composition features, particularly the `@` syntax which is working correctly. The main remaining challenge is the case expression parsing, which is a well-defined problem with a clear path to resolution. - -The project has a solid foundation with the combinator-based architecture and working function composition features. Once the case expression parsing is resolved, we can focus on enhancing the language with additional features and optimizations. - -The project is well-positioned for continued development with clear priorities, comprehensive documentation, and a systematic approach to implementation. \ No newline at end of file |