Weekly Report - January 15, 2024

1. Expression Evaluation Module Fix

It was discovered that some business logic did not correctly call expression evaluation interfaces, resulting in failed evaluations. The root cause was that interfaces were upgraded without fully migrating and maintaining compatibility with older versions. Going forward, interface versions will be unified and all call sites updated to use the latest interfaces.

2. Multi-Variable Assignment Mechanism Fix

The syntax parser was unable to correctly process multi-variable assignment statements due to incomplete coverage of this feature in the grammar rules. Optimized the grammar rules to enhance support for multi-variable assignment scenarios.

3. Instruction Execution Flow Optimization

The existing instruction execution logic was chaotic and costly to understand and maintain. Refactored the execution flow using an instruction handler class to encapsulate detail logic. The streamlined flow after optimization is clearer and facilitates future extensions.