Streamy version

[mlutze]

   /// for writing safely
    pub enum JsonStream[r: Region] {
        case JsonObject(Iterator[(String, JsonStream[r]), r])
        case JsonArray(Iterator[JsonStream[r], r])
        case JsonString(String)
        case JsonInt(Int32)
        case JsonFloat(Float64)
        case JsonBool(Bool)
        case JsonNull
    }

   /// for reading with error possibility
    pub enum JsonResult[r: Region] {
        case JsonObject(Iterator[(String, JsonResult[r]), r])
        case JsonArray(Iterator[JsonResult[r], r])
        case JsonString(String)
        case JsonInt(Int32)
        case JsonFloat(Float64)
        case JsonBool(Bool)
        case JsonNull
        case JsonErr
    }

• To start: We can read from an Iterator[Char]
• maybe later advance to Iterator[String] and/or Iterator[Array[Byte]]
• Normal parser can delegate to this
• to- and from- stream operations