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**8**
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### Bugs
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- None
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### Optimizations
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- None necessary; the code is already concise and efficient.
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### Good points
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- Use of `enum` with `Int` raw values simplifies direct comparisons and storage in certain types of collections.
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- Conformance to `Hashable` and `Sendable` is a good practice for future compatibility and concurrency.
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- Clear documentation comments describe each case, enhancing the understandability.
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- The use of negative, zero, and positive values is intuitive for this domain context (voting logic).
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### Summary
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The code is well-structured, efficiently using Swift's `enum` to categorize vote states with associated integer values. The choice to adopt `Hashable` and `Sendable` suits modern Swift programming best practices, aiding in serialization and safe concurrency. There are no apparent bugs or necessary optimizations, and the documentation is clear and concise.
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### Open source alternatives
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- **Swift's `Result` Type**: Although more generic, it can be used for similar representations in voting systems.
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- **Custom Implementations in Projects like Mastodon or Lemmy**: Often, custom voting systems can be seen in open-source frameworks of social media platforms, providing rich functionalities. |