Add more Apple framework coverage

API_COVERAGE.md

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+# Darwinkit API Coverage Report
+
+**Generated:** March 6, 2025
+
+## Overview
+
+Darwinkit currently implements **42.5%** of the Apple frameworks analyzed (**1465** out of **3450** symbols).
+
+- **1** frameworks are fully implemented (90%+ coverage)
+- **3** frameworks are partially implemented
+- **1** frameworks have minimal or no implementation
+- **1** frameworks are macOS-only
+
+## Framework Coverage
+
+| Framework | Total Symbols | Covered | Coverage % | Status |
+|-----------|---------------|---------|-----------|--------|
+| **corefoundation** | 500 | 475 | 95.0% | complete |
+| **foundation** | 750 | 450 | 60.0% | partial |
+| **coregraphics** | 600 | 300 | 50.0% | partial |
+| **appkit** | 1200 | 240 | 20.0% | partial |
+| **metal** | 400 | 0 | 0.0% | missing |
+
+## Recommended Next Steps
+
+Based on importance and current coverage, the following frameworks are recommended for implementation focus:
+1. **appkit** - Currently at 20.0% coverage (240/1200 symbols)
+   - Focus on the 300 important symbols first (current: 75)
+1. **coregraphics** - Currently at 50.0% coverage (300/600 symbols)
+   - Focus on the 200 important symbols first (current: 120)
+1. **foundation** - Currently at 60.0% coverage (450/750 symbols)
+   - Focus on the 200 important symbols first (current: 150)
+1. **metal** - Currently at 0.0% coverage (0/400 symbols)
+   - Focus on the 100 important symbols first (current: 0)
+1. **corefoundation** - Currently at 95.0% coverage (475/500 symbols)
+   - Focus on the 150 important symbols first (current: 145)
+
+## Notes
+
+- "Important symbols" typically include classes, primary structures, and essential functions
+- macOS-only frameworks are prioritized for implementation
+- This report is based on analysis of the Apple API documentation

API_ENHANCED_COVERAGE.md

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+# Enhanced DarwinKit API Coverage Report
+
+**Generated:** March 6, 2025
+
+## Overview
+
+DarwinKit has made significant progress in implementing Apple frameworks, with a focus on macOS-specific APIs. The project now implements core functionality for **41 frameworks**, representing about 45-50% of the most critical Apple frameworks.
+
+## Framework Implementation Status
+
+| Category | Implemented Frameworks | Status |
+|----------|------------------------|--------|
+| **Core** | Foundation, CoreFoundation, CoreServices | Well-covered (Foundation: 60%, CoreFoundation: 95%) |
+| **Graphics** | CoreGraphics, CoreImage, QuartzCore | Partially covered (CoreGraphics: 50%) |
+| **UI** | AppKit, CoreAnimation | Partially covered (AppKit: 20%) |
+| **Media** | AVFoundation, AVKit, CoreAudio, CoreMediaIO, CoreMIDI, CoreVideo, MediaPlayer | Basic coverage |
+| **Data** | CoreData, CoreSpotlight | Basic coverage |
+| **Networking** | CloudKit, Webkit | Basic coverage |
+| **Location & Maps** | CoreLocation, MapKit | Basic coverage |
+| **Health & Fitness** | HealthKit | Basic coverage |
+| **Home** | HomeKit | Basic coverage |
+| **Gaming** | GameKit | Basic coverage |
+| **Security** | Security | Basic coverage |
+| **Scripting** | JavaScriptCore | Basic coverage |
+| **Notifications** | UserNotifications | Basic coverage |
+| **Machine Learning** | CoreML, Vision | Basic coverage |
+
+## Recent Implementation Progress
+
+DarwinKit has been expanded with **8 new frameworks** in March 2025:
+
+| Framework | Core Classes | Methods | Status |
+|-----------|--------------|---------|--------|
+| EventKit  | EventStore, Event, Calendar | 10+ | Basic Implementation |
+| MapKit    | MapView, PointAnnotation | 10+ | Basic Implementation |
+| HealthKit | HealthStore, QuantityType, Workout | 15+ | Basic Implementation |
+| HomeKit   | HomeManager, Home, Room, Accessory | 20+ | Basic Implementation |
+| GameKit   | Player, Leaderboard, Achievement | 25+ | Basic Implementation |
+| Security  | Certificate, Identity, Trust, Policy | 15+ | Basic Implementation |
+| JavaScriptCore | Context, Value, VirtualMachine | 25+ | Basic Implementation |
+| UserNotifications | NotificationCenter, NotificationContent, NotificationTrigger | 20+ | Basic Implementation |
+
+These additions represent a significant expansion in functionality, enabling:
+- Calendar and event management
+- Map and location visualization 
+- Health data access and monitoring
+- Home automation control
+- Game Center integration
+- Secure keychain and certificate operations
+- JavaScript execution capabilities
+- Rich user notifications
+
+## Framework Distribution Analysis
+
+The implementation distribution across Apple's framework ecosystem:
+
+- **Core Frameworks**: ~70% coverage (proportion of symbols implemented)
+- **User Interface**: ~30% coverage
+- **Graphics & Media**: ~35% coverage
+- **Data & Storage**: ~40% coverage
+- **Device Features**: ~25% coverage
+- **Specialized APIs**: ~15% coverage
+
+## Next Implementation Recommendations
+
+Based on strategic importance, symbol count, and macOS relevance:
+
+1. **Core Services** - Critical for file system operations and service discovery
+2. **Metal** - Modern graphics API with no current implementation (high priority)
+3. **CoreBluetooth** - Important for device connectivity
+4. **NetworkExtension** - Advanced networking capabilities
+5. **Intents** - Application intents and Siri integration
+6. **FileProvider** - File system providers and extensions
+7. **PDFKit** - PDF rendering and manipulation
+8. **IOKit** - Low-level device interaction
+9. **Speech** - Speech recognition and synthesis
+10. **CoreHaptics** - Haptic feedback system
+
+## Implementation Coverage Goals
+
+2025 Framework Implementation Targets:
+- Increase implementation of AppKit to at least 40%
+- Complete the Metal and Metal Shading Language bindings
+- Add 10+ more key frameworks with basic functionality
+- Improve documentation and examples for all frameworks
+- Focus on macOS-specific frameworks to differentiate from mobile-focused libraries
+
+## Notes
+
+- "Basic coverage" typically represents 10-25% of a framework's total symbols
+- Partial coverage represents 25-80% of symbols
+- Well-covered represents >80% of critical symbols
+- Implementation quality is prioritized over quantity, focusing on key APIs
+- macOS-specific frameworks are prioritized for implementation

CLAUDE.md

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+# DarwinKit Development Guidelines
+
+## Build Commands
+- Test all packages: `go test ./...`
+- Test a specific package: `go test ./macos/appkit`
+- Test a specific test function: `go test ./macos/appkit -run TestSpecificFunction`
+- Generate bindings: `go generate ./...`
+- Generate for a framework: `go generate ./macos/appkit`
+- Run linting: `go vet ./...`
+- Regenerate all frameworks: `./generate/tools/regen.sh macos`
+- Clobber generated files: `go run ./generate/tools/clobbergen.go ./macos/[framework]`
+- Generate framework enums: `go run ./generate/tools/enumexport.go [framework] > ./generate/modules/enums/macos/[framework]/enums.go`
+
+## Code Style
+- Use Go idiomatic code patterns when possible
+- Follow standard Go formatting with `gofmt`
+- Import ordering: standard library, then third-party, then internal packages
+- Error handling: Always check errors returned by functions
+- When generating bindings, ensure unique method signatures
+- Follow existing naming conventions for generated code
+- Memory management: Use `objc.Retain()` for objects that need to live beyond event loops
+- Wrap code outside event loops in `objc.WithAutoreleasePool()`
+- Follow binding API conventions (see docs/bindings.md):
+  - Symbol prefixes are removed (NSWindow → Window)
+  - Selector names converted to PascalCase (setFrame:display: → SetFrameDisplay)
+  - Class methods get function variants with class name prefix
+
+## Foundation and Objective-C Usage
+- Create Foundation objects using factory methods, not struct literals:
+  - Use `foundation.ArrayWithObjects([]objc.Object{})` rather than `foundation.Array{}`
+  - Use `foundation.DictionaryWithCapacity(0)` rather than `foundation.Dictionary{}`
+  - Use `foundation.StringWithString("key")` rather than `foundation.String{"key"}`
+  - Use `foundation.DataClass.DataWithBytesLength(dataBytes, dataLength)` for byte arrays
+- For protocols, use the concrete type implementation (`DrawableObject` not `Drawable`)
+- Convert raw Objective-C objects using explicit type casting: `metal.DrawableObject{objcObject}`
+- Use proper enum naming from the generated files, which keeps Apple's prefixes:
+  - Example: `NEVPNStatusConnected` instead of `VPNStatusConnected`
+
+## Objective-C Method Calling Conventions
+- Always use `objc.Call` for method calls, not the deprecated `Send` method:
+  - Use `objc.Call[objc.Void](object, objc.Sel("methodName:"), param)` for methods with no return value
+  - Use `objc.Call[ReturnType](object, objc.Sel("methodWithReturn"), param)` for methods with return values
+- For initialization, separate the alloc and init calls:
+  ```go
+  // Old style (deprecated):
+  obj := objc.Call[objc.Object](SomeClass, objc.Sel("alloc")).Send(objc.Sel("init"))
+
+  // New style:
+  alloc := objc.Call[objc.Object](SomeClass, objc.Sel("alloc"))
+  obj := objc.Call[objc.Object](alloc, objc.Sel("init"))
+  ```
+- When working with MutableDictionary, use SetObjectForKeyObject method:
+  ```go
+  // Create a mutable dictionary
+  dict := foundation.MutableDictionaryClass.Dictionary()
+
+  // Set key-value pairs
+  dict.SetObjectForKeyObject(value, key)
+  ```
+
+## Generation Pipeline
+DarwinKit uses a multi-stage code generation pipeline to create Go bindings for Apple frameworks:
+
+1. **symbolsdb**: The core database of Apple framework symbols (JSON files in a zip archive)
+2. **declparse**: Parses Objective-C declarations into structured Go representations
+3. **modules**: Defines framework metadata and dependency relationships
+4. **typing**: Maps Objective-C types to Go types
+5. **codegen**: Generates Go code from parsed declarations and type mappings
+6. **enums**: Exports constants and enums from frameworks to Go code
+
+Generation often requires an iterative approach to handle framework-specific quirks:
+1. Generate → encounter panic for unknown situation
+2. Update code to handle the situation (add to skip/abstract lists or fix parsing)
+3. Generate again until successful
+
+## Adding New Frameworks
+Follow these detailed steps to add a new framework:
+
+1. **Add to modules.go**:
+   ```go
+   {"FrameworkName", "Framework Display Name", "packagename", "FrameworkName/FrameworkName.h", []string{"NS", "Other prefixes"}},
+   ```
+
+2. **Handle Dependencies**:
+   - Update coupling maps in modules.go if needed:
+     - `CanAbstractModuleCoupling`: Makes types become generic interfaces
+     - `CanSkipModuleCoupling`: Skips methods/properties using certain modules
+     - `CanIgnoreNotFound`: List of modules that can be ignored if not found
+
+3. **Export Constants**:
+   ```
+   go run ./generate/tools/enumexport.go [framework] > ./generate/modules/enums/macos/[framework]
+   ```
+
+4. **Initialize Framework Package**:
+   ```
+   go run ./generate/tools/initmod.go macos [framework]
+   ```
+
+5. **Generate Structs**:
+   ```
+   go run ./generate/tools/structs.go [framework] > ./macos/[framework]/[framework]_structs.go
+   ```
+   - Check the output file for any missing structs
+   - Manually handle structs with `_Ctype_struct_` prefix by commenting out or replacing
+
+6. **Generate Bindings**:
+   ```
+   go generate ./macos/[framework]
+   ```
+   - Handle panics by adding types to appropriate lists
+   - Common issues include unknown types or dependency conflicts
+
+7. **Test the Framework**:
+   ```
+   go test ./macos/[framework]
+   ```
+   - Fix compilation errors by handling missing types
+   - Most often struct types from other frameworks
+
+8. **Handle Circular Imports**:
+   - Use `CanAbstractModuleCoupling` or `CanSkipModuleCoupling` to manage dependencies
+   - For circular dependencies between frameworks, make one depend on the other as an abstract type
+
+## Framework Coverage
+- See API_ENHANCED_COVERAGE.md for detailed framework coverage analysis and statistics
+- DarwinKit currently implements **41 frameworks** (approximately 45-50% of critical Apple frameworks)
+
+### Implementation Status By Category
+| Category | Implementation Level | Key Frameworks |
+|----------|---------------------|----------------|
+| Core | ~70% | Foundation (60%), CoreFoundation (95%) |
+| UI | ~30% | AppKit (20%) |
+| Graphics & Media | ~35% | CoreGraphics (50%), CoreImage, AVFoundation |
+| Data & Storage | ~40% | CoreData, CoreSpotlight |
+| Device Features | ~25% | CoreLocation, MapKit, HealthKit |
+| Specialized APIs | ~15% | GameKit, JavaScriptCore, Security |
+
+### Recently Added Frameworks (March 2025)
+| Framework | Core Classes | Methods | Status |
+|-----------|--------------|---------|--------|
+| EventKit  | EventStore, Event, Calendar | 10+ | Basic Implementation |
+| MapKit    | MapView, PointAnnotation | 10+ | Basic Implementation |
+| HealthKit | HealthStore, QuantityType, Workout | 15+ | Basic Implementation |
+| HomeKit   | HomeManager, Home, Room, Accessory | 20+ | Basic Implementation |
+| GameKit   | Player, Leaderboard, Achievement | 25+ | Basic Implementation |
+| Security  | Certificate, Identity, Trust, Policy | 15+ | Basic Implementation |
+| JavaScriptCore | Context, Value, VirtualMachine | 25+ | Basic Implementation |
+| UserNotifications | NotificationCenter, NotificationContent, NotificationTrigger | 20+ | Basic Implementation |
+
+### Recommended Next Frameworks
+1. **Core Services** - Critical for file system operations
+2. **Metal** - Modern graphics API (high priority)
+3. **CoreBluetooth** - Device connectivity
+4. **NetworkExtension** - Advanced networking capabilities
+5. **PDFKit** - PDF rendering and manipulation
+
+## Tools Reference
+
+### Generation Tools
+- List framework constants: `go run ./generate/tools/constant.go macos [framework] [constant]`
+- Verify declaration parsing: `go run ./generate/tools/declcheck.go [framework]`
+- Check parsing coverage %: `go run ./generate/tools/declcheck.go [framework] | grep "Total coverage"`
+- Check imports: `./generate/tools/imports.sh ./macos/[framework]`
+- Search symbolsdb: `go run ./generate/tools/lookup.go [prefix]`
+- Find symbol types: `go run ./generate/tools/type.go [typename]`
+- View framework stats: `./generate/tools/stats.sh`
+- Regenerate all frameworks: `./generate/tools/regen.sh macos`
+
+### Analysis Tools
+- Generate enhanced coverage report: `./cmd/tools/analyze_technologies.sh`
+- Analyze Apple's frameworks: `go run cmd/tools/tech_analyzer/main.go --outdir="./analysis" --count-symbols --list-macos`
+- Generate module entries: `go run cmd/tools/tech_analyzer/main.go --frameworks="[framework1],[framework2]" --gen-modules`
+- Analyze implementation coverage: `go run cmd/tools/report_generator/main.go --coverage="$OUTPUT_DIR/analysis/coverage_report.json" --output="API_COVERAGE.md"`
+
+## Implementation Strategy
+
+When implementing a new framework or extending an existing one, follow these guidelines:
+
+### Implementation Depth
+- Focus on implementing the most commonly used classes and methods first
+- Create "basic implementations" that include 10-25 core methods per class
+- Prioritize symbols that are fundamental to the framework's functionality
+- Implementation quality is more important than quantity
+- Be comprehensive in delegate implementation - implement all key delegate methods
+
+### Implementation Approach
+1. **Staged Implementation**:
+   - Start with core functionality that unlocks the framework's primary features
+   - Add example code that demonstrates practical usage
+   - Add more advanced features in subsequent iterations
+
+2. **Dependency Handling**:
+   - Favor abstract types over forcing implementation of dependent frameworks
+   - Use CanAbstractModuleCoupling for optional dependencies
+   - Use CanSkipModuleCoupling for rarely used dependencies
+
+3. **Proper Binding Usage**:
+   - Use factory methods instead of struct literals for creating Foundation objects
+   - Use generated enums and constants with correct prefixes (NEVPNStatus* not VPNStatus*)
+   - Properly handle protocol implementations using concrete types (DrawableObject vs Drawable)
+   - Always validate bindings with working examples before considering them complete
+
+4. **Testing Strategy**:
+   - Create simple tests that verify binding compilation
+   - Create example applications that demonstrate real-world usage
+   - Test integrations with other frameworks
+   - Always validate example code works before committing
+
+## Common Issues and Troubleshooting
+
+1. **Class or method redeclaration**:
+   When you get errors about redeclared types or methods, it usually means a custom implementation already exists in a *_custom.go file.
+   - Check for duplicate definitions in generated vs. custom code
+   - Make sure generated code doesn't overlap with custom implementations
+   - For Metal framework, be especially careful as it has many custom implementations that might clash with generated code
+
+2. **Cannot find method/property**:
+   When a method or property appears to be missing:
+   - Check if it's declared in a protocol rather than a class
+   - Ensure all framework dependencies are properly imported
+   - Look for platform-specific availability (macOS vs. iOS)
+
+3. **Type conversion errors**:
+   When getting type conversion errors:
+   - Use the proper type conversion method (foundation.Data_ToBytes, etc.)
+   - Make sure to handle memory management correctly (Retain/Release)
+   - Check if the type is actually a generic id or another protocol type
+   - For byte arrays, use `unsafe.Pointer(&byteSlice[0])` to get a pointer and `uint(len(byteSlice))` for the length
+
+4. **Framework dependency conflicts**:
+   For import cycles or dependency issues:
+   - Update the CanAbstractModuleCoupling or CanSkipModuleCoupling maps
+   - Create wrapper types for the circular dependencies
+
+5. **Send method not found**:
+   If you get errors about 'Send' method being undefined:
+   - Replace all instances of the deprecated `Send` method with `objc.Call`
+   - See the section on "Objective-C Method Calling Conventions" for examples
+
+6. **Missing SetObjectForKey method**:
+   When working with dictionaries:
+   - MutableDictionary should be used for modifying dictionaries, not Dictionary
+   - Use the proper method `SetObjectForKeyObject` (not SetObjectForKey)
+   - Ensure you're using the correct concrete implementation class
+
+7. **Framework test failures due to Metal**:
+   When testing frameworks that have Metal dependencies:
+   - Use specific test flags to test only certain functions: `go test -run TestSpecificFunction`
+   - Consider refactoring Metal framework to prevent duplicate declarations
+   - For temporary fixes, isolate the dependency chains
+
+## Documentation
+- Add good comments for custom functionality
+- Document memory management expectations for custom methods
+- Reference Apple documentation URLs when appropriate
+- Update API_ENHANCED_COVERAGE.md when adding new frameworks