Method encode

arrow-json/src/writer/mod.rs:2283–2291

(&mut self, idx: usize, out: &mut Vec<u8>)

        impl Encoder for UnionEncoder {
            fn encode(&mut self, idx: usize, out: &mut Vec<u8>) {
                match &self.array[idx] {
                    None => out.extend_from_slice(b"null"),
                    Some(UnionValue::Int32(v)) => out.extend_from_slice(v.to_string().as_bytes()),
                    Some(UnionValue::String(v)) => {
                        out.extend_from_slice(format!("\"{v}\"").as_bytes())
                    }
                }
            }
        }

        #[derive(Debug)]