extra::json doesn't support using Encodable to encode straight to a json value

[rust-highfive]

Issue by huonw
Tuesday Aug 06, 2013 at 14:08 GMT

For earlier discussion, see rust-lang/rust#8335

This issue was labelled with: A-libs, I-papercut in the Rust repository

---

If one wants to convert an Encodable type to a Json value, then one has to do something like (i.e. encode as JSON to a string and then parse that string):

let foo = something_to_convert_to_json;

let s = do std::io::with_str_writer |w| {
    foo.encode(&mut extra::json::Encoder(w));
};
let json = match extra::json::from_str(s) {
    Ok(j) => j,
    Err(_) => fail!("Rust output some json it doesn't understand itself.")
};

[alexcrichton]

I'm going to close this now that this crate is deprecated in favor of serde. We're discontinuing feature development in rustc-serialize but will still continue to merge bug fixes if they arise.