https://github.com/melody-rs/alox-48

Serde powered Ruby Marshal (de)serializing library
https://github.com/melody-rs/alox-48

binary-format marshal ruby rust serde serialization

Last synced: about 1 month ago
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Serde powered Ruby Marshal (de)serializing library

• Host: GitHub
• URL: https://github.com/melody-rs/alox-48
• Owner: melody-rs
• License: mpl-2.0
• Created: 2022-12-05T19:40:43.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2025-12-07T04:05:24.000Z (6 months ago)
• Last Synced: 2026-03-15T02:48:37.604Z (3 months ago)
• Topics: binary-format, marshal, ruby, rust, serde, serialization
• Language: Rust
• Homepage:
• Size: 510 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# alox-48

alox-48 (short for aluminum oxide 48) is a crate for deserializing and serializing as well Ruby's Marshal data format, using a custom data format like serde.

alox-48 intends to provide almost perfect round-trip deserialization, with some exceptions:

- Object links are not preserved.

    Object links are a way for Ruby to compact data in Marshal. They rely heavily on Ruby having a GC and thus do not map well to Rust.

- Bignum is unsupported.

# Why a custom data format

Originally this crate relied on nightly to extend serde, using `min_speciailization`.

Unfortunately that had many shortcomings and the deserializer would frequently choke on valid inputs and the serializer would spit out invalid data.

Most issues revolved around symbols- ruby uses `@` prefixed symbols for instance variables, but also accepts variables *without* the prefix, silently discarding them.

I'm working on a separate serde adapter that can interface serde's data format with alox's, but that looks like it'll be nightly only.