feat: Add OptionalLosslessValue and resilient decoding support #12
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- Implement OptionalLosslessValueCodable property wrapper for handling optional lossless decoding - Add support for null values and missing fields (decoded as nil) - Add typealias OptionalLosslessValue and OptionalLosslessBoolValue - Include comprehensive tests for various decoding scenarios - Add resilient decoding tests with outcome tracking - Support for type conversion with LosslessDecodingStrategy
📝 WalkthroughWalkthroughA new property wrapper, Changes
Sequence Diagram(s)sequenceDiagram
participant JSONDecoder
participant Fixture (with @OptionalLosslessValue)
participant OptionalLosslessValueCodable
participant LosslessDecodingStrategy
JSONDecoder->>Fixture: decode(from: data)
Fixture->>OptionalLosslessValueCodable: init(from: decoder)
OptionalLosslessValueCodable->>LosslessDecodingStrategy: preferredType decode
alt Success
OptionalLosslessValueCodable-->>Fixture: set wrappedValue, outcome = decodedSuccessfully
else Null or Missing Key
OptionalLosslessValueCodable-->>Fixture: set wrappedValue = nil, outcome = valueWasNil/keyNotFound
else Other Failure
OptionalLosslessValueCodable->>LosslessDecodingStrategy: try alternative types
alt Alternative decode succeeds
OptionalLosslessValueCodable-->>Fixture: convert and set wrappedValue, outcome = decodedSuccessfully
else All fail
OptionalLosslessValueCodable-->>Fixture: set wrappedValue = nil or throw error
end
end
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Suggested labels
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Documentation and Community
|
ElonPark
changed the base branch from
main
to
feature/elon/add-resilient-decoding
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Actionable comments posted: 1
📜 Review details
Configuration used: .coderabbit.yml
Review profile: ASSERTIVE
Plan: Pro
📒 Files selected for processing (3)
Sources/KarrotCodableKit/BetterCodable/LosslessValue/OptionalLosslessValue.swift(1 hunks)Tests/KarrotCodableKitTests/BetterCodable/LosslessValue/OptionalLosslessValueResilientTests.swift(1 hunks)Tests/KarrotCodableKitTests/BetterCodable/LosslessValue/OptionalLosslessValueTests.swift(1 hunks)
🧰 Additional context used
📓 Path-based instructions (2)
Tests/KarrotCodableKitTests/**
⚙️ CodeRabbit Configuration File
Tests/KarrotCodableKitTests/**: You are a senior Swift/iOS engineer reviewing runtime functionality tests for KarrotCodableKit's Codable extensions.1. Runtime Behavior Testing [HIGH]
- Verify JSON encoding/decoding scenarios cover real-world use cases
- Check polymorphic type resolution testing across different strategies
- Assess property wrapper testing (@DATEvalue, @DefaultFalse, etc.)
- Validate error handling and edge case coverage
2. Test Data Quality [HIGH]
- Review test JSON structures for realistic complexity
- Check that TestDoubles provide comprehensive mock scenarios
- Verify test data covers various data types and edge cases
- Assess polymorphic test data represents actual usage patterns
3. Integration Testing [MEDIUM]
- Check integration between macro-generated code and runtime functionality
- Verify end-to-end scenarios combining multiple KarrotCodableKit features
- Assess performance testing for large data structures
- Review memory usage testing for complex polymorphic scenarios
Review Focus
- Prioritize real-world usage scenario coverage
- Focus on Codable correctness and performance implications
- Mark comments with priority: [HIGH], [MEDIUM], or [LOW]
Files:
Tests/KarrotCodableKitTests/BetterCodable/LosslessValue/OptionalLosslessValueTests.swiftTests/KarrotCodableKitTests/BetterCodable/LosslessValue/OptionalLosslessValueResilientTests.swift
Sources/KarrotCodableKit/**
⚙️ CodeRabbit Configuration File
Sources/KarrotCodableKit/**: You are a senior Swift/iOS engineer reviewing runtime library code for KarrotCodableKit, a comprehensive Codable extension framework.1. Codable Performance [HIGH]
- Check encoding/decoding efficiency and memory usage
- Verify proper handling of large JSON structures
- Assess polymorphic type resolution performance
- Review property wrapper overhead and optimization
2. Type Safety & Polymorphism [HIGH]
- Validate PolymorphicCodable identifier-based type resolution
- Check AnyCodable type erasure implementation for edge cases
- Verify UnnestedPolymorphic macro integration with runtime components
- Assess error handling in polymorphic decoding scenarios
3. API Design [HIGH]
- Evaluate public interface consistency across modules
- Check property wrapper ergonomics (@DefaultFalse, @DATEvalue, etc.)
- Verify protocol design follows Swift API guidelines
- Assess extensibility for new Codable patterns
4. BetterCodable Integration [MEDIUM]
- Review property wrapper implementations for common patterns
- Check date strategy implementations (ISO8601, RFC3339, etc.)
- Verify default value and lossy conversion handling
- Assess data encoding strategies (Base64, etc.)
5. Error Handling [MEDIUM]
- Verify comprehensive DecodingError and EncodingError usage
- Check PolymorphicCodableError provides sufficient context
- Assess graceful fallback handling in polymorphic scenarios
Review Focus
- Prioritize runtime correctness and performance over style
- Focus on real-world JSON processing scenarios
- Mark comments with priority: [HIGH], [MEDIUM], or [LOW]
Files:
Sources/KarrotCodableKit/BetterCodable/LosslessValue/OptionalLosslessValue.swift
🧬 Code Graph Analysis (1)
Sources/KarrotCodableKit/BetterCodable/LosslessValue/OptionalLosslessValue.swift (1)
Sources/KarrotCodableKit/Resilient/ErrorReporting.swift (1)
reportError(154-166)
🔇 Additional comments (5)
Sources/KarrotCodableKit/BetterCodable/LosslessValue/OptionalLosslessValue.swift (3)
17-29: Well-structured property wrapper designThe property wrapper correctly implements the basic structure with appropriate properties for tracking the wrapped value, its original type, and the decoding outcome. The public initializer properly sets the outcome based on whether the value is nil.
90-106: Encoding implementation correctly preserves type informationThe encoding logic properly handles nil values and attempts to preserve the original type when available, falling back to direct encoding when necessary. This ensures round-trip encoding/decoding maintains fidelity.
166-181: KeyedDecodingContainer extension properly handles edge casesThe extension correctly distinguishes between missing keys and null values, returning appropriate outcomes for each case. This enables accurate tracking of why a value is nil.
Tests/KarrotCodableKitTests/BetterCodable/LosslessValue/OptionalLosslessValueTests.swift (1)
12-220: Comprehensive test coverage for OptionalLosslessValueThe test suite thoroughly covers all major scenarios including:
- Null value handling
- Missing field handling
- Type conversion from misaligned JSON types
- Encoding/decoding round trips
- Boolean string conversion strategies
- Mutation and re-encoding behavior
The parameterized test for boolean values (lines 166-191) is particularly well-designed, covering various string and numeric representations.
Tests/KarrotCodableKitTests/BetterCodable/LosslessValue/OptionalLosslessValueResilientTests.swift (1)
12-174: Excellent coverage of resilient decoding featuresThe test suite effectively validates all resilient decoding scenarios:
- Successful decoding with type conversion and outcome tracking
- Null value handling with appropriate outcome
- Missing key detection with outcome tracking
- Invalid value error propagation
- Parameterized testing with outcome verification
The conditional DEBUG compilation for projected value testing is correctly implemented.
Background (Required)
OptionalLosslessValueproperty wrapper to handle optional values with lossless string conversionChanges
OptionalLosslessValueproperty wrapper for optional string-convertible valuesTesting Methods
swift testto execute all test suitesOptionalLosslessValueResilientTests.swiftfiles for each property wrapperOptionalLosslessValueTests.swiftfor the new property wrapperReview Notes
Summary by CodeRabbit
New Features
Tests