tpack

The std facade for TPACK.

This crate re-exports the core API and derive macros, and it hosts convenience features that depend on the standard library.

Features

• derive default feature for native derive support
• serde_support for schema-aware serde integration
• std for registry and convenience APIs built on top of the core crate

Native Path

For low-latency use cases, prefer the native traits and a schema registry that can resolve SchemaRef payloads without extra work.

When decoding FullSchemaWithId with a registry hit, the default path now reparses the embedded schema bytes and requires them to match the cached schema before reusing the cached AST. If a deployment intentionally trusts the registry entry and wants the older skip-only behavior, set DecodeOptions::validate_embedded_schema_on_cache_hit to false.

Serde Path

The serde bridge is available when the serde_support feature is enabled. It is intended for compatibility and convenience, not the fastest decode path.

from_slice and from_value keep the default path small. When serde decoding needs a registry, custom limits, or custom DecodeOptions, use serde_support::Deserializer::new() and configure it with builder-style methods before calling slice or value.