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C#: compatible schema ids publish a schema on open, Mesh takes only the older layout, the refusal names its file

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A record whose schema id the catalog lists only as a compatible id now opens (the cache resolved a persisted schema by entry id
alone). CultMesh's fallback to the older catalog-entry reader fires only for a store in that layout, decided by the entry's slot 5,
not for any decode failure, so a current-layout store with a malformed slot is refused as CultCache refuses it.
CultStoreUnreadableException.Path names the refused file. New vectors: compatible-id-only-v3 (accepted by all four) and three
current-layout catalogs with one malformed slot. The contract states the writer's invariant.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
Meta Vens 2026-09-30 06:54:17 +02:00
commit 969d78de39
16 changed files with 118 additions and 16 deletions
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4
src/GameCult.Caching.MessagePack/CultDocumentMessagePackSerialization.cs
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@ -234,7 +234,7 @@ public static class CultDocumentMessagePackSerialization
}
catch (Exception ex) when (ex is not OutOfMemoryException)
{
throw new CultStoreUnreadableException(ex.Message, ex);
throw new CultStoreUnreadableException(ex.Message, innerException: ex);
}
}
@ -268,7 +268,7 @@ public static class CultDocumentMessagePackSerialization
}
catch (Exception ex) when (ex is EndOfStreamException or MessagePackSerializationException or InvalidOperationException)
{
throw new CultStoreUnreadableException("The store is not one complete MessagePack array.", ex);
throw new CultStoreUnreadableException("The store is not one complete MessagePack array.", innerException: ex);
}
if (!whole.End)