fastobo-graphs 0.1.2

OBO Graphs data model, decoder and encoder in Rust.
Documentation 
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pub mod serde {
    use serde::Deserialize;
    use serde::Deserializer;

    /// Deserialize a possibly missing vector into an empty one.
    pub fn optional_vector<'de, D, T>(deserializer: D) -> Result<Vec<T>, D::Error>
    where
        D: Deserializer<'de>,
        T: Deserialize<'de>,
    {
        match Option::deserialize(deserializer) {
            Ok(Some(v)) => Ok(v),
            Ok(None) => Ok(Vec::new()),
            Err(e) => Err(e),
        }
    }

    /// Deserialize a vector possibly containing `null`.
    pub fn nullable_vector<'de, D, T>(deserializer: D) -> Result<Vec<T>, D::Error>
    where
        D: Deserializer<'de>,
        T: Deserialize<'de>,
    {
        Vec::<Option<T>>::deserialize(deserializer).map(|v|
            v.into_iter().flatten().collect()
        )
    }
}