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Optimize ObjectId hex formatting #2698

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Optimize ObjectId hex formatting #2698

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@JKamsker
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@JKamsker JKamsker commented Oct 1, 2025

Summary

  • replace ObjectId hex parsing with span-based implementations, using Convert.FromHexString on .NET 8 and a manual span loop on netstandard
  • rewrite ObjectId.ToString() to fill stack-allocated buffers and format via Convert.ToHexString/custom writer without BitConverter
  • add allocation-focused unit tests to validate the lower-allocation parsing/formatting paths

Testing

  • dotnet test LiteDB.Tests -f net8.0

https://chatgpt.com/codex/tasks/task_e_68cfd6f3a49c832ab81f09ca090f5eee
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@JKamsker