INNER CODE UNIT · Rust

serialize_enum_or_unknown

stepancheg/rust-protobuf · protobuf-examples/customize-serde/src/lib.rs:22

fn serialize_enum_or_unknown<E: EnumFull, S: serde::Serializer>(
    e: &Option<EnumOrUnknown<E>>,
    s: S,
) -> Result<S::Ok, S::Error> {
    if let Some(e) = e {
        match e.enum_value() {
            Ok(v) => s.serialize_str(v.descriptor().name()),
            Err(v) => s.serialize_i32(v),
        }
    } else {
        s.serialize_unit()
    }
}

fn deserialize_enum_or_unknown<'de, E: EnumFull, D: serde::Deserializer<'de>>(
    d: D,
) -> Result<Option<EnumOrUnknown<E>>, D::Error> {
    struct DeserializeEnumVisitor<E: EnumFull>(PhantomData<E>);

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