fix: query driver on Windows#255
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Summary of Changes
Hello @zaragoza-xu, 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 enhances the server's robustness and cross-platform compatibility by introducing a mechanism to verify the currency of Abstract Syntax Trees (ASTs) and by adapting compiler driver queries for Windows environments. These changes aim to prevent operations on stale data and improve the reliability of language features across different operating systems.
Highlights
- AST Version Tracking: Introduced an "ast_version" field to the OpenFile struct, allowing the system to track the specific version of a file's content that was used to build its Abstract Syntax Tree (AST).
- Windows Compatibility for Driver Queries: Implemented platform-specific handling for the null device (NUL on Windows, /dev/null on Unix-like systems) when querying the compiler driver, resolving a compatibility issue on Windows environments.
- Ensuring Up-to-Date AST Usage: Integrated checks across various language server features (e.g., completion, hover, document symbol lookup) to ensure that operations only proceed with an AST that is current with the file's latest version. If the AST is outdated, these features will gracefully return no results.
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Code Review
This pull request introduces two main improvements: AST version checking to prevent using stale data, and support for querying the compiler driver on Windows. The AST version checks are correctly implemented in most places, enhancing robustness. The Windows support for the null device is also a good addition. However, I've identified a potential race condition in the new check within on_completion that should be addressed to ensure consistency with other similar functions. I've also suggested a minor simplification for the Windows-specific preprocessor directive.
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OK, I see. I wasn't fully aware of the severity of async problem. Thanks for your review. |
Fixed #250