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rvm: switch binary serialization to postcard (#582)

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Move RVM binary encoding from bincode to postcard and bump the format version. Update test helpers, docs, changelog, and refresh lockfiles after the swap.

Closes #575

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
This commit is contained in:
Anand Krishnamoorthi
2026-03-03 15:09:45 -06:00
committed by GitHub
parent b6f11c5602
commit 006e819d52
13 changed files with 261 additions and 268 deletions
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docs/rvm/architecture.md
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@@ -90,11 +90,11 @@ version:
`3`).
2. **Section manifest**: four little-endian `u32` lengths for entry points,
sources, literals, and the rule tree, plus a single-byte `rego_v0` flag.
3. **Preamble payloads**: each section is encoded with `bincode` using helper
3. **Preamble payloads**: each section is encoded with `postcard` using helper
wrappers (`BinaryValueSlice`, `BinaryValueRef`) to stream complex `Value`
graphs without cloning.
4. **Program core**: the remaining `Program` struct is serialized once more via
`bincode`; fields skipped by serde (entry points, literals, sources,
`postcard`; fields skipped by serde (entry points, literals, sources,
rule_tree, resolved builtins) are re-inserted from the preamble when the
program is reconstructed.