# serde_keyed_derive

This is a fork of [serde_derive](https://github.com/serde-rs/serde) that mirrors
the same API but adds an extra attribute called `key`. This allows you to key
your structs with literals other than strings.

## Usage

```rs
// Do things as normal
#[derive(Serialize, Deserialize)]
struct Message {
    #[serde(key = 1)]
    a: String,
    #[serde(key = 2)]
    b: String,
    #[serde(key = 3)]
    c: String,
    #[serde(key = 4)]
    d: String,
}
```

## For Serde developers

As long as your serializer can handle heterogenous maps, your implementation is
already supported. Internally, when keys are detected, the generated code
serializes structs as maps.

## Limitations

This is experimental, so although it's useable for production, breaking changes
may happen.

See https://github.com/serde-rs/serde/pull/2698