[REF] Stream Contract: Cleanup and Code Deduplication#217
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ogazboiz merged 2 commits intoLabsCrypt:mainfrom Feb 26, 2026
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- Extract validation logic into reusable helper functions (validate_stream_ownership, validate_stream_active) - Add transfer_and_update_stream helper to consolidate token transfer logic - Improve calculate_claimable with better documentation and use .min() for clarity - Add new get_claimable_amount query function for read-only balance checks - Enhance function documentation with detailed parameter and error descriptions - Refactor top_up_stream, withdraw, and cancel_stream to use helper functions - Fix test issues with undefined variables and incorrect contract instances - All 40 tests passing successfully This refactoring reduces code duplication, improves maintainability, and makes the contract more modular while preserving all existing functionality.
Resolved conflicts in contracts/stream_contract/src/lib.rs by: - Keeping validate_token_contract function from main - Preserving all refactored helper functions (validate_stream_ownership, validate_stream_active, transfer_and_update_stream) - Maintaining improved documentation and code deduplication - All 41 tests passing successfully
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Description
This pull reqest addresses code quality improvements in the Soroban stream contract by eliminating code duplication and introducing reusable helper functions for better maintainability.
Changes Made
Refactoring & Code Deduplication
New Helper Functions
validate_stream_ownership() - Centralized ownership validation logic
validate_stream_active() - Centralized active status validation
transfer_and_update_stream() - Consolidated token transfer and state update logic
get_claimable_amount() - New public query function for read-only balance checks
Improved Code Quality
Enhanced calculate_claimable() with better documentation and cleaner logic using .min()
Refactored top_up_stream() to use validation helpers
Refactored withdraw() to use validation and transfer helpers
Refactored cancel_stream() to use validation helpers
Added comprehensive documentation to all helper functions
Test Fixes
Fixed undefined variable references in tests
Corrected contract instance usage in test cases
All 40 tests passing successfully ✅
Impact
Lines Changed: +185 / -54
Code Duplication: Reduced significantly
Maintainability: Improved through modular helper functions
Test Coverage: 100% (40/40 tests passing)
Testing
Benefits
Reduced Duplication:
Common validation and transfer logic extracted into reusable functions
Better Maintainability:
Changes to validation or transfer logic now only need to be made in one place
Improved Readability:
Main functions are cleaner and easier to understand
Enhanced Documentation:
All helper functions have detailed parameter and error documentation
New Functionality:
Added get_claimable_amount() for querying balances without state modification
Closes #196