Comments (1)
VictorKoenders
commented on June 3, 2024
1
https://github.com/bincode-org/bincode#why-does-bincode-not-respect-repru8
Why does bincode not respect #[repr(u8)]?
Bincode will encode enum variants as a u32. If you're worried about storage size, we can recommend enabling Configuration::with_variable_int_encoding(). This option is enabled by default with the standard configuration. In this case enum variants will almost always be encoded as a u8.
Currently we have not found a compelling case to respect #[repr(...)]. You're most likely trying to interop with a format that is similar-but-not-quite-bincode. We only support our own protocol (spec).
If you really want to use bincode to encode/decode a different protocol, consider implementing Encode and Decode yourself. bincode-derive will output the generated implementation in target/generated/bincode/<name>_Encode.rs and target/generated/bincode/<name>_Decode.rs which should get you started.
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