use serde::{self, Serialize};

use super::Value;

impl Serialize for Value {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: serde::Serializer,
    {
        match *self {
            Value::Null => serializer.serialize_unit(),
            Value::Bool(b) => serializer.serialize_bool(b),
            Value::Number(ref n) => n.serialize(serializer),
            Value::String(ref s) => serializer.serialize_str(s),
            Value::Sequence(ref seq) => seq.serialize(serializer),
            Value::Mapping(ref hash) => {
                use serde::ser::SerializeMap;
                let mut map = serializer.serialize_map(Some(hash.len()))?;
                for (k, v) in hash {
                    map.serialize_entry(k, v)?;
                }
                map.end()
            }
        }
    }
}