Example of using with serde macros about erased-serde HOT 6 CLOSED

#[macro_use]
extern crate serde_derive;

extern crate serde;
extern crate serde_json;
extern crate erased_serde;

trait Element: erased_serde::Serialize + Send + Sync {
    /* ... */
}

impl serde::Serialize for Element {
    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
        where S: serde::Serializer
    {
        self.erased_serialize(serializer).map_err(|err| {
            serde::ser::Error::custom(err.to_string())
        })
    }
}

#[derive(Serialize)]
struct GlennPierce {
    i: u8,
}

impl Element for GlennPierce {
    /* ... */
}

#[derive(Serialize)]
struct Pipeline {
    name: String,
    elements: Vec<Box<Element>>,
}

fn main() {
    let pipeline = Pipeline {
        name: "glennpierce".to_owned(),
        elements: vec![
            Box::new(GlennPierce { i: 0 }),
            Box::new(GlennPierce { i: 1 }),
        ],
    };
    println!("{}", serde_json::to_string(&pipeline).unwrap());
}