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feat: Roundtrip unknown fields - #2209
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alexander-fenster
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Note: CI error after merge indicates overlap with #2208: |
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Preserves unknown fields encountered during binary decoding and writes them back during encoding, enabling forward-compatible binary roundtrips.
Unknown field data is stored on messages as a non-enumerable, user-accessible
$unknownsproperty. Deleting$unknownsdiscards preserved unknown fields explicitly. Also addsReader#rawandWriter#rawhelpers for reading and writing raw wire bytes directly.Fixes #775
Fixes #1619 via
Writer#rawSupersedes #779
Supersedes #1912
Related: #296