update

[xuhuanzy]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @xuhuanzy, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a fix that refines the type checking mechanism within the emmylua_code_analysis crate. It specifically targets issues related to array type compaction and the comparison of nullable reference types, making the type analysis more accurate and configurable. The changes ensure that the linter correctly identifies type mismatches in complex scenarios involving array iteration and aliased types, improving the overall reliability of the code analysis.

Highlights

• Enhanced Array Type Checking: Modified array type compaction logic to conditionally include Nil in the base type based on a new strict.array_index configuration, allowing for more precise type checking of array elements.
• Improved Nullable Type Comparison: Updated the fast_eq_check utility to correctly compare nullable reference types within unions against direct reference types, resolving potential mismatches in type equality checks.
• New Diagnostic Test Case: Added a new test case (test_fix_issue_844) to validate the fix for a specific scenario involving ipairs and type aliases with array parameters, ensuring correct ParamTypeMismatch diagnostics.

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[gemini-code-assist]

Code Review

This pull request appears to fix an issue with recursive type aliases, and also makes array index type checking configurable. However, I've found a potential issue in the implementation of the type alias fix.

The change in fast_eq_check seems to incorrectly equate a nullable type T? with a non-nullable type T. This could hide potential nil-related bugs. Additionally, the new configuration for array index checking seems to have inverted logic, causing issues with the default settings. Please see my detailed comments.