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Implement JSON and Protobuf OSD codecs

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Chili Palmer
2026-08-09 01:30:59 +00:00
parent 84bc31d031
commit 6d02db8a9a
15 changed files with 1365 additions and 47 deletions
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README.md
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@@ -97,5 +97,15 @@ instruction handling. Serialization is compact and deterministic for maps.
DTD declarations and named entity expansion are disabled; input, output,
nesting, node, and aggregate allocation limits are enforced with byte-positioned
parse errors.
JSON conversion is explicit rather than a derived Serde mapping: integral
width coercion, empty strings, binary arrays, typed values, and the reference's
default omission rules retain their C# behavior. Its reader rejects duplicate
properties and enforces byte, depth, node, and allocation limits while compact
output uses System.Text.Json-compatible escaping and stable map-key ordering.
The private OSD Protobuf schema is implemented directly with fixed field tags,
ZigZag `int32`, little-endian IEEE-754 fixed64 values, 16-byte UUIDs, bounded
length-delimited containers, and wire-type-aware unknown-field skipping. The
schema remains an internal compatibility format; native encoders emit stable
sorted maps and accept the exact optional LLSD Protobuf header.
The controlled audit aggregates every expected failure by standardized C#
member ID and rejects unrelated fixture, assertion, compile, or symbol errors.