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Use spans for Guid and ObjectId serialization #2697

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Use spans for Guid and ObjectId serialization #2697

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@JKamsker JKamsker commented Oct 1, 2025

Summary

  • update BufferReader and BufferWriter to read and write Guid/ObjectId values using stackalloc-backed spans and MemoryMarshal to avoid per-call allocations
  • add span-based helpers in BufferSliceExtensions and introduce a System.Memory dependency for the netstandard2.0 target
  • extend BufferWriter tests to cover multi-segment Guid/ObjectId roundtrips and ensure endianness remains unchanged

Testing

  • dotnet build LiteDB/LiteDB.csproj -f netstandard2.0
  • dotnet test LiteDB.Tests/LiteDB.Tests.csproj -f net8.0

https://chatgpt.com/codex/tasks/task_e_68cfd6f2d184832aa3be1ba4c8834b7b

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@JKamsker