ms2k/lazaret
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Make codec shape authority compile-time and fixed

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ms2k 2026-07-19 04:33:43 +09:00
commit 54cc167f81
1 changed files with 322 additions and 52 deletions
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6
crates/lazaret-core/src/codec.rs
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@ -5,6 +5,8 @@ use std::fmt;
use serde::Serialize;
use serde::de::DeserializeOwned;
use crate::records::SchemaType;
pub const MAX_SCHEMA_RECORD_BYTES: usize = 1024 * 1024;
#[derive(Debug)]
@ -45,7 +47,7 @@ impl std::error::Error for CodecError {
/// # Errors
///
/// Returns an error when serialization fails or the encoded value exceeds the generic limit.
pub fn encode<T: Serialize>(record: &T) -> Result<Vec<u8>, CodecError> {
pub fn encode<T: SchemaType + Serialize>(record: &T) -> Result<Vec<u8>, CodecError> {
let encoded = postcard::to_stdvec(record).map_err(CodecError::MalformedPayload)?;
if encoded.len() > MAX_SCHEMA_RECORD_BYTES {
return Err(CodecError::RecordTooLarge {
@ -63,7 +65,7 @@ pub fn encode<T: Serialize>(record: &T) -> Result<Vec<u8>, CodecError> {
/// Returns an error for oversized, malformed, trailing, or non-minimal Postcard input.
pub fn decode<T>(encoded: &[u8]) -> Result<T, CodecError>
where
T: DeserializeOwned + Serialize,
T: DeserializeOwned + SchemaType + Serialize,
{
if encoded.len() > MAX_SCHEMA_RECORD_BYTES {
return Err(CodecError::RecordTooLarge {