feat: 斗鱼弹幕
parent
99e5c16279
commit
49a8666c7d
@ -0,0 +1,57 @@
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package douyu
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import (
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"bytes"
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"fmt"
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"github.com/pkg/errors"
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"live-gateway/douyu/stt"
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"live-gateway/ws"
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)
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type CodecDouyu struct {
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}
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func NewCodecDouyu() ws.Codec {
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return &CodecDouyu{}
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}
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// Encode encodes TypedData to douyu.WsEntry
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func (c *CodecDouyu) Encode(v interface{}) (interface{}, error) {
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data, ok := v.(TypedData)
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if !ok {
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return nil, errors.New("[Codec-Douyu] 写入值类型必须实现 douyu.TypedData 接口")
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}
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bf := bytes.NewBuffer([]byte{})
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bf.WriteString(fmt.Sprintf("type@=%s/", data.DataType()))
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sttData, err := stt.Marshal(v)
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if err != nil {
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return nil, err
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}
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bf.Write(sttData)
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resp := &WsEntry{
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data: bf.Bytes(),
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msgType: TypeMessageToServer,
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}
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//logger.SLog.Debugf("发送消息: %s", string(resp.data))
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return resp, nil
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}
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func (c *CodecDouyu) Decode(customEntry interface{}) (interface{}, error) {
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// 处理data
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entry, ok := customEntry.(*WsEntry)
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if !ok {
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return nil, errors.New(fmt.Sprintf("[Codec-Douyu] 写入值类型必须为%T", WsEntry{}))
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}
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var typed struct {
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Type string `stt:"type"`
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}
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err := stt.Unmarshal(entry.data, &typed)
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if err != nil {
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return nil, errors.New("[Codec-Douyu] 获取type字段失败")
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}
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entry.dataType = typed.Type
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return entry, nil
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}
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@ -0,0 +1,33 @@
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package douyu
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import (
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"fmt"
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jsoniter "github.com/json-iterator/go"
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"github.com/mitchellh/mapstructure"
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"live-gateway/douyu/msg_handler"
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"testing"
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)
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func TestDecodeData(t *testing.T) {
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codec := NewCodecDouyu()
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// type@=chatmsg/rid@=58839/ct@=8/hashid@=9LA18ePx4dqW/nn@=test/txt@=666/cid@=1111/ic@=icon/sahf@=0/level@=1/nl@=0/nc@=0/cmt@=0/gt@=0/col@=0/rg@=0/pg@=0/dlv@=0/dc@=0/bdlv@=0/gatin@=0/chtin@=0/repin@=0/bnn@=test/bl@=0/brid@=58839/hc@=0/ol@=0/rev@=0/hl@=0/ifs@=0/p2p@=0/el@=eid@AA=1@ASetp@AA=1@ASsc@AA=1@AS/
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// type@=chatmsg/rid@=3484/ct@=14/uid@=53882869/nn@=.........................../txt@=......................../cid@=0e7aca52aede49eb2e9a2a0100000000/ic@=avatar@Sdefault@S11/level@=30/sahf@=0/col@=1/cst@=1657543712943/bnn@=....../bl@=18/brid@=3484/hc@=709494ed025488b6f77db71902e124cd/diaf@=1/hl@=1/ifs@=1/el@=/lk@=/fl@=18/dms@=3/pdg@=54/pdk@=87/ext@=/.
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var wsEntry interface{} = &WsEntry{
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data: []byte("type@=chatmsg/rid@=3484/ct@=14/uid@=53882869/nn@=.........................../txt@=......................../cid@=0e7aca52aede49eb2e9a2a0100000000/ic@=avatar@Sdefault@S11/level@=30/sahf@=0/col@=1/cst@=1657543712943/bnn@=....../bl@=18/brid@=3484/hc@=709494ed025488b6f77db71902e124cd/diaf@=1/hl@=1/ifs@=1/el@=/lk@=/fl@=18/dms@=3/pdg@=54/pdk@=87/ext@=/."),
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}
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var err error
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wsEntry, err = codec.Decode(wsEntry)
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if err != nil {
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panic(err)
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}
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var dm msg_handler.MsgDanmaku
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err = mapstructure.Decode(wsEntry.(*WsEntry).MapData, &dm)
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var cmd struct {
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CMD string `json:"cmd"`
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}
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jsoniter.Unmarshal([]byte(`{"cmd":"stringcmd"}`), &cmd)
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fmt.Printf("%+v", wsEntry)
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}
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package douyu
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import (
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"git.noahlan.cn/northlan/ntools-go/logger"
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"github.com/pkg/errors"
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"live-gateway/config"
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"live-gateway/douyu/msg_handler"
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"live-gateway/live"
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"live-gateway/ws"
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"time"
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)
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type MsgHandler interface {
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TypedData
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HandlerMessage(data []byte)
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}
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// 实现 live.Handler 接口
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var _ live.Handler = (*LiveDouyu)(nil)
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type (
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LiveDouyu struct {
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*live.Live
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sequenceId uint32
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msgHandlerMapper map[string]MsgHandler
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//loginResChan chan struct{} // login res
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entered chan struct{} // join group
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}
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)
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func NewLiveDouyu() *LiveDouyu {
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bl := &LiveDouyu{
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msgHandlerMapper: make(map[string]MsgHandler, 6),
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entered: make(chan struct{}),
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}
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l := live.NewLive(
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live.WithWsOptions(
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ws.WithPacker(NewPackDouyu()),
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ws.WithCodec(NewCodecDouyu()),
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),
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)
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l.PreConnect(bl.preConnect)
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l.Init(bl.Init)
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l.Handler(bl)
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bl.Live = l
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return bl
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}
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func (l *LiveDouyu) registerMessageHandler(h ...MsgHandler) {
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for _, handler := range h {
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l.msgHandlerMapper[handler.DataType()] = handler
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}
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}
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func (l *LiveDouyu) preConnect() (url string, err error) {
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cfg := config.Config.Douyu
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url = cfg.Custom.Url
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// 注册监听器
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l.registerMessageHandler(
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msg_handler.NewMsgDanmakuHandler(cfg.RoomId),
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msg_handler.NewMsgGiftHandler(cfg.RoomId),
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)
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return
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}
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func (l *LiveDouyu) Init(conn *ws.NWebsocket) (err error) {
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cfg := config.Config.Douyu
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switch cfg.Type {
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case config.TypeOfficial:
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case config.TypeCustom:
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// 1. login
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err = conn.SendBinaryMessage(&MsgLoginReq{
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RoomId: cfg.RoomId,
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//Dfl: "sn@AA=105@ASss@AA=1",
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//Dfl: MsgLoginReqDfl{},
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// sn@=105/ss@=1
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Username: "auto_EHUwJCggl7",
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Uid: cfg.UserId,
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Ver: "20190610",
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AVer: "218101901",
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Ct: 0,
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})
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if err != nil {
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return errors.Wrap(err, "发送login消息到wss失败")
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}
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logger.SLog.Debug("发送登录消息")
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// 2. wait login resp
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<-l.entered
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err = conn.SendBinaryMessage(&MsgJoinGroup{
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RoomId: cfg.RoomId,
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GId: -9999, // 海量弹幕模式
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})
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if err != nil {
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return errors.Wrap(err, "发送joingroup消息到wss失败")
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}
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logger.SLog.Debug("发送入组消息")
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}
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// 心跳
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go l.heartbeat(conn, cfg.HeartbeatInterval*time.Second)
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logger.SLog.Debug("开始心跳...")
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return
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}
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func (l *LiveDouyu) heartbeat(conn *ws.NWebsocket, t time.Duration) {
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hb := func(conn *ws.NWebsocket) {
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//logger.SLog.Debug("heartbeat !!!")
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data := &MsgHeartbeat{}
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l.sequenceId++
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err := conn.SendBinaryMessage(data)
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if err != nil {
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return
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}
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}
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hb(conn)
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ticker := time.NewTicker(t)
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defer ticker.Stop()
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for {
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select {
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case <-ticker.C:
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hb(conn)
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}
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}
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}
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func (l *LiveDouyu) HandlerMessage(v interface{}) {
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entry, ok := v.(*WsEntry)
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if !ok {
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logger.SLog.Warnf("读取消息错误, 数据类型不匹配 %T %T", v, &WsEntry{})
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return
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}
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//logger.SLog.Debugf("接收消息 %s", string(entry.data))
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switch entry.dataType {
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case "loginres":
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go func() {
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select {
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case l.entered <- struct{}{}:
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}
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}()
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default:
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handler, ok := l.msgHandlerMapper[entry.dataType]
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if !ok {
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return
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}
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handler.HandlerMessage(entry.data)
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//logger.SLog.Infof("接收消息 %v\n%v", string(entry.data), entry.MapData)
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}
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}
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@ -0,0 +1,9 @@
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package msg_handler
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// FansMedal 斗鱼粉丝牌
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type FansMedal struct {
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MedalName string `stt:"bnn"` // 粉丝勋章名称
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MedalLevel int64 `stt:"bl"` // 粉丝勋章等级
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MedalRoomId int64 `stt:"brid"` // 粉丝勋章房间ID
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Hc string `stt:"hc"` // 粉丝勋章校验码
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}
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package douyu
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var _ TypedData = (*MsgLoginReq)(nil)
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type (
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MsgLoginReq struct {
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RoomId int64 `stt:"roomid"` // 直播间ID
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//Dfl MsgLoginReqDfl `stt:"dfl"` // 不清楚含义,给默认值
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Dfl string `stt:"dfl"`
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Username string `stt:"username"` // 用户名,随机生成就好
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Uid int64 `stt:"uid"` // 用户ID
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Ver string `stt:"ver"` // 版本
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AVer string `stt:"aver"` // 另一个版本
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Ct int `stt:"ct"` // 客户端类型 通常为0
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}
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MsgLoginReqDfl struct {
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Sn int32 `stt:"sn,omitempty"`
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Ss int32 `stt:"ss,omitempty"`
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}
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)
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func (m *MsgLoginReq) DataType() string {
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return "loginreq"
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}
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var _ TypedData = (*MsgJoinGroup)(nil)
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type MsgJoinGroup struct {
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RoomId int64 `stt:"rid"`
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GId int `stt:"gid"`
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}
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func (m *MsgJoinGroup) DataType() string {
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return "joingroup"
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}
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var _ TypedData = (*MsgHeartbeat)(nil)
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// MsgHeartbeat 服务端心跳消息，空消息
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type MsgHeartbeat struct {
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}
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func (m *MsgHeartbeat) DataType() string {
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return "mrkl"
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}
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@ -0,0 +1,129 @@
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package douyu
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"github.com/gorilla/websocket"
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"github.com/pkg/errors"
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"live-gateway/ws"
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)
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const (
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wsPackageLen = 4
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wsMsgTypeLen = 2
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wsSecretLen = 1
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wsReservedLen = 1
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wsEndingLen = 1
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)
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var _ ws.Packer = (*PackDouyu)(nil)
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// PackDouyu douyu packer
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//
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// | segment | type | size | offset | remark |
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// | ---------- | ------ | ------- | -------| ------------------------------------------- |
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// | `packageLen` | uint32 | 4 | 0 | 消息长度 4字节 |
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// | `packageLen` | uint32 | 4 | 4 | 消息长度 4字节 |
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// | `msgType` | uint16 | 2 | 8 | 消息类型 2字节 小端整数 |
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// | `secret` | byte | 1 | 10 | 加密字段 1字节 暂时未用，默认为 0 |
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// | `reserved` | byte | 1 | 11 | 1 |
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// | `data` | []byte | dynamic | 12 | :数据内容，结尾'\0' |
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// WsEntry -> ws.Entry#Raw
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type PackDouyu struct {
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}
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func NewPackDouyu() ws.Packer {
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return &PackDouyu{}
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}
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func (*PackDouyu) byteOrder() binary.ByteOrder {
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return binary.LittleEndian
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}
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// Unpack unpacks douyu.WsEntry to ws.Entry
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func (p *PackDouyu) Unpack(v interface{}) (*ws.Entry, error) {
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result := &ws.Entry{
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MessageType: websocket.BinaryMessage,
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}
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// v must be bilibili.WsEntry
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entry, ok := v.(*WsEntry)
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if !ok {
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return nil, fmt.Errorf("[Pack-Douyu] 写入值类型必须为 %T", WsEntry{})
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}
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var err error
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length := wsPackageLen + wsMsgTypeLen + wsSecretLen +
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wsReservedLen + len(entry.data) + wsEndingLen // 8+len(data)+1
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buffer := bytes.NewBuffer([]byte{})
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byteOrder := p.byteOrder()
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err = binary.Write(buffer, byteOrder, int32(length))
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err = binary.Write(buffer, byteOrder, int32(length))
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err = binary.Write(buffer, byteOrder, entry.msgType)
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err = binary.Write(buffer, byteOrder, entry.secret)
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err = binary.Write(buffer, byteOrder, entry.reserved)
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err = binary.Write(buffer, byteOrder, entry.data)
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err = binary.Write(buffer, byteOrder, EndCharacter)
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if err != nil {
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return nil, err
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}
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result.Raw = buffer.Bytes()
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return result, nil
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}
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// Pack packs ws.Entry to douyu.WsEntry
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func (p *PackDouyu) Pack(entry *ws.Entry) (interface{}, error) {
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defer func() {
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if err := recover(); err != nil {
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}
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}()
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if entry.MessageType != websocket.BinaryMessage {
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return nil, errors.New("err of msg")
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}
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var (
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offsetLen = wsPackageLen
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offsetMsgType = offsetLen + offsetLen
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offsetSecret = offsetMsgType + wsMsgTypeLen
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offsetReserved = offsetSecret + wsSecretLen
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offsetData = offsetReserved + wsReservedLen
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)
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byteOrder := p.byteOrder()
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raw := entry.Raw
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l := int(byteOrder.Uint32(raw[:offsetLen])) + wsPackageLen
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if len(raw) > l {
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// 粘包
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var slice []*ws.Entry
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for len(raw) > 0 {
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tmp := &ws.Entry{
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MessageType: entry.MessageType,
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}
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length := int(byteOrder.Uint32(raw[:offsetLen])) + wsPackageLen
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var ll = length
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if len(raw) < length {
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ll = len(raw)
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}
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tmp.Raw = raw[:ll]
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raw = raw[ll:]
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slice = append(slice, tmp)
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}
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return slice, nil
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} else {
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// 独立包
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ent := &WsEntry{}
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ent.msgType = byteOrder.Uint16(raw[offsetMsgType : offsetMsgType+wsMsgTypeLen])
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ent.secret = raw[offsetSecret]
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ent.reserved = raw[offsetReserved]
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endOffset := len(entry.Raw)
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if entry.Raw[endOffset-1] == 0 {
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endOffset -= 1
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}
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ent.data = raw[offsetData:endOffset]
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return ent, nil
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}
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}
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@ -0,0 +1,182 @@
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package stt
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import (
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"github.com/modern-go/concurrent"
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"github.com/modern-go/reflect2"
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"io"
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"sync"
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)
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// Config customize how the API should behave.
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// The API is created from Config by frozenConfig.
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type Config struct {
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TagKey string // 自定义 tagKey 默认 frozenConfig
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OnlyTaggedField bool // 是否仅限 tag 标记字段
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CaseSensitive bool // key是否大小写敏感 默认true
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}
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// API the public interface of this package.
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// Primary Marshal and Unmarshal.
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type API interface {
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IteratorPool
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StreamPool
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Marshal(v any) ([]byte, error)
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Unmarshal(data []byte, v any) error
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RegisterExtension(extension Extension)
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DecoderOf(typ reflect2.Type) ValDecoder
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EncoderOf(typ reflect2.Type) ValEncoder
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//NewEncoder(writer io.Writer) *Encoder
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//NewDecoder(reader io.Reader) *Decoder
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}
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var ConfigDefault = Config{}.Froze()
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|
||||
type frozenConfig struct {
|
||||
configBeforeFrozen Config
|
||||
onlyTaggedField bool
|
||||
caseSensitive bool
|
||||
decoderCache *concurrent.Map
|
||||
encoderCache *concurrent.Map
|
||||
encoderExtension Extension
|
||||
decoderExtension Extension
|
||||
extraExtensions []Extension
|
||||
streamPool *sync.Pool // marshal stream
|
||||
iteratorPool *sync.Pool // unmarshal iter pool
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) initCache() {
|
||||
cfg.decoderCache = concurrent.NewMap()
|
||||
cfg.encoderCache = concurrent.NewMap()
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) addDecoderToCache(cacheKey uintptr, decoder ValDecoder) {
|
||||
cfg.decoderCache.Store(cacheKey, decoder)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) addEncoderToCache(cacheKey uintptr, encoder ValEncoder) {
|
||||
cfg.encoderCache.Store(cacheKey, encoder)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) getDecoderFromCache(cacheKey uintptr) ValDecoder {
|
||||
decoder, found := cfg.decoderCache.Load(cacheKey)
|
||||
if found {
|
||||
return decoder.(ValDecoder)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) getEncoderFromCache(cacheKey uintptr) ValEncoder {
|
||||
encoder, found := cfg.encoderCache.Load(cacheKey)
|
||||
if found {
|
||||
return encoder.(ValEncoder)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
var cfgCache = concurrent.NewMap()
|
||||
|
||||
func getFrozenConfigFromCache(cfg Config) *frozenConfig {
|
||||
obj, found := cfgCache.Load(cfg)
|
||||
if found {
|
||||
return obj.(*frozenConfig)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func addFrozenConfigToCache(cfg Config, frozenConfig *frozenConfig) {
|
||||
cfgCache.Store(cfg, frozenConfig)
|
||||
}
|
||||
|
||||
///////////// Config
|
||||
|
||||
func (cfg Config) Froze() API {
|
||||
api := &frozenConfig{
|
||||
onlyTaggedField: cfg.OnlyTaggedField,
|
||||
caseSensitive: cfg.CaseSensitive,
|
||||
}
|
||||
api.streamPool = &sync.Pool{
|
||||
New: func() interface{} {
|
||||
return NewStream(api, nil, 512)
|
||||
},
|
||||
}
|
||||
api.iteratorPool = &sync.Pool{
|
||||
New: func() interface{} {
|
||||
return NewIterator(api)
|
||||
},
|
||||
}
|
||||
api.initCache()
|
||||
encoderExtension := EncoderExtension{}
|
||||
decoderExtension := DecoderExtension{}
|
||||
|
||||
api.encoderExtension = encoderExtension
|
||||
api.decoderExtension = decoderExtension
|
||||
api.configBeforeFrozen = cfg
|
||||
return api
|
||||
}
|
||||
|
||||
func (cfg Config) frozeWithCacheReuse(extraExtensions []Extension) *frozenConfig {
|
||||
api := getFrozenConfigFromCache(cfg)
|
||||
if api != nil {
|
||||
return api
|
||||
}
|
||||
api = cfg.Froze().(*frozenConfig)
|
||||
for _, extension := range extraExtensions {
|
||||
api.RegisterExtension(extension)
|
||||
}
|
||||
addFrozenConfigToCache(cfg, api)
|
||||
return api
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) getTagKey() string {
|
||||
tagKey := cfg.configBeforeFrozen.TagKey
|
||||
if tagKey == "" {
|
||||
return "stt"
|
||||
}
|
||||
return tagKey
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) RegisterExtension(extension Extension) {
|
||||
cfg.extraExtensions = append(cfg.extraExtensions, extension)
|
||||
copied := cfg.configBeforeFrozen
|
||||
cfg.configBeforeFrozen = copied
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) Marshal(v interface{}) ([]byte, error) {
|
||||
stream := cfg.BorrowStream(nil)
|
||||
defer cfg.ReturnStream(stream)
|
||||
stream.WriteVal(v)
|
||||
if stream.Error != nil {
|
||||
return nil, stream.Error
|
||||
}
|
||||
result := stream.Buffer()
|
||||
copied := make([]byte, len(result))
|
||||
copy(copied, result)
|
||||
return copied, nil
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) Unmarshal(data []byte, v interface{}) error {
|
||||
// decrypt
|
||||
validData := cfg.getValidData(data)
|
||||
//iter := cfg.BorrowIterator(decryptBytes(validData, -1))
|
||||
iter := cfg.BorrowIterator(validData)
|
||||
defer cfg.ReturnIterator(iter)
|
||||
iter.ReadVal(v)
|
||||
c := iter.nextToken()
|
||||
if c == 0 {
|
||||
if iter.Error == io.EOF {
|
||||
return nil
|
||||
}
|
||||
return iter.Error
|
||||
}
|
||||
iter.ReportError("Unmarshal", "there are bytes left after unmarshal")
|
||||
return iter.Error
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) getValidData(data []byte) []byte {
|
||||
c := data[len(data)-1]
|
||||
if c != '/' {
|
||||
data = append(data, '/')
|
||||
}
|
||||
return data
|
||||
}
|
||||
@ -0,0 +1,294 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
)
|
||||
|
||||
// ValueType the type for JSON element
|
||||
type ValueType int
|
||||
|
||||
const (
|
||||
// InvalidValue invalid element
|
||||
InvalidValue ValueType = iota
|
||||
// StringValue element "string"
|
||||
StringValue
|
||||
// NumberValue element 100 or 0.10
|
||||
NumberValue
|
||||
// NilValue element null
|
||||
NilValue
|
||||
// BoolValue element true or false
|
||||
BoolValue
|
||||
)
|
||||
|
||||
var valueTypes []ValueType
|
||||
|
||||
func init() {
|
||||
valueTypes = make([]ValueType, 256)
|
||||
for i := 0; i < len(valueTypes); i++ {
|
||||
valueTypes[i] = StringValue
|
||||
}
|
||||
valueTypes['-'] = NumberValue
|
||||
valueTypes['0'] = NumberValue
|
||||
valueTypes['1'] = NumberValue
|
||||
valueTypes['2'] = NumberValue
|
||||
valueTypes['3'] = NumberValue
|
||||
valueTypes['4'] = NumberValue
|
||||
valueTypes['5'] = NumberValue
|
||||
valueTypes['6'] = NumberValue
|
||||
valueTypes['7'] = NumberValue
|
||||
valueTypes['8'] = NumberValue
|
||||
valueTypes['9'] = NumberValue
|
||||
valueTypes['t'] = BoolValue
|
||||
valueTypes['f'] = BoolValue
|
||||
valueTypes['n'] = NilValue
|
||||
}
|
||||
|
||||
// Iterator is an io.Reader like object, with STT specific read functions.
|
||||
// Error is not returned as return value, but stored as Error member on this iterator instance.
|
||||
type Iterator struct {
|
||||
cfg *frozenConfig
|
||||
reader io.Reader
|
||||
buf []byte
|
||||
head int
|
||||
tail int
|
||||
depth int
|
||||
captureStartedAt int
|
||||
captured []byte
|
||||
Error error
|
||||
Attachment interface{} // open for customized decoder
|
||||
}
|
||||
|
||||
// NewIterator creates an empty Iterator instance
|
||||
func NewIterator(cfg API) *Iterator {
|
||||
return &Iterator{
|
||||
cfg: cfg.(*frozenConfig),
|
||||
reader: nil,
|
||||
buf: nil,
|
||||
head: 0,
|
||||
tail: 0,
|
||||
depth: 0,
|
||||
}
|
||||
}
|
||||
|
||||
// Parse creates an Iterator instance from io.Reader
|
||||
func Parse(cfg API, reader io.Reader, bufSize int) *Iterator {
|
||||
return &Iterator{
|
||||
cfg: cfg.(*frozenConfig),
|
||||
reader: reader,
|
||||
buf: make([]byte, bufSize),
|
||||
head: 0,
|
||||
tail: 0,
|
||||
depth: 0,
|
||||
}
|
||||
}
|
||||
|
||||
// ParseBytes creates an Iterator instance from byte array
|
||||
func ParseBytes(cfg API, input []byte) *Iterator {
|
||||
return &Iterator{
|
||||
cfg: cfg.(*frozenConfig),
|
||||
reader: nil,
|
||||
buf: input,
|
||||
head: 0,
|
||||
tail: len(input),
|
||||
depth: 0,
|
||||
}
|
||||
}
|
||||
|
||||
// ParseString creates an Iterator instance from string
|
||||
func ParseString(cfg API, input string) *Iterator {
|
||||
return ParseBytes(cfg, []byte(input))
|
||||
}
|
||||
|
||||
// Pool returns a pool can provide more iterator with same configuration
|
||||
func (iter *Iterator) Pool() IteratorPool {
|
||||
return iter.cfg
|
||||
}
|
||||
|
||||
// Reset reuse iterator instance by specifying another reader
|
||||
func (iter *Iterator) Reset(reader io.Reader) *Iterator {
|
||||
iter.reader = reader
|
||||
iter.head = 0
|
||||
iter.tail = 0
|
||||
iter.depth = 0
|
||||
return iter
|
||||
}
|
||||
|
||||
// ResetBytes reuse iterator instance by specifying another byte array as input
|
||||
func (iter *Iterator) ResetBytes(input []byte) *Iterator {
|
||||
iter.reader = nil
|
||||
iter.buf = input
|
||||
iter.head = 0
|
||||
iter.tail = len(input)
|
||||
iter.depth = 0
|
||||
return iter
|
||||
}
|
||||
|
||||
// WhatIsNext gets ValueType of relatively next json element
|
||||
func (iter *Iterator) WhatIsNext() ValueType {
|
||||
valueType := valueTypes[iter.nextToken()]
|
||||
iter.unreadByte()
|
||||
return valueType
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipWhitespacesWithoutLoadMore() bool {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
switch c {
|
||||
case ' ', '\n', '\t', '\r':
|
||||
continue
|
||||
}
|
||||
iter.head = i
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func (iter *Iterator) nextToken() byte {
|
||||
// a variation of skip whitespaces, returning the next non-whitespace token
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
switch c {
|
||||
case ' ', '\n', '\t', '\r':
|
||||
continue
|
||||
}
|
||||
iter.head = i + 1
|
||||
return c
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
return 0
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ReportError record an error in iterator instance with current position.
|
||||
func (iter *Iterator) ReportError(operation string, msg string) {
|
||||
if iter.Error != nil {
|
||||
if iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
}
|
||||
peekStart := iter.head - 10
|
||||
if peekStart < 0 {
|
||||
peekStart = 0
|
||||
}
|
||||
peekEnd := iter.head + 10
|
||||
if peekEnd > iter.tail {
|
||||
peekEnd = iter.tail
|
||||
}
|
||||
parsing := string(iter.buf[peekStart:peekEnd])
|
||||
contextStart := iter.head - 50
|
||||
if contextStart < 0 {
|
||||
contextStart = 0
|
||||
}
|
||||
contextEnd := iter.head + 50
|
||||
if contextEnd > iter.tail {
|
||||
contextEnd = iter.tail
|
||||
}
|
||||
context := string(iter.buf[contextStart:contextEnd])
|
||||
iter.Error = fmt.Errorf("%s: %s, error found in #%v byte of ...|%s|..., bigger context ...|%s|...",
|
||||
operation, msg, iter.head-peekStart, parsing, context)
|
||||
}
|
||||
|
||||
// CurrentBuffer gets current buffer as string for debugging purpose
|
||||
func (iter *Iterator) CurrentBuffer() string {
|
||||
peekStart := iter.head - 10
|
||||
if peekStart < 0 {
|
||||
peekStart = 0
|
||||
}
|
||||
return fmt.Sprintf("parsing #%v byte, around ...|%s|..., whole buffer ...|%s|...", iter.head,
|
||||
string(iter.buf[peekStart:iter.head]), string(iter.buf[0:iter.tail]))
|
||||
}
|
||||
|
||||
func (iter *Iterator) readByte() (ret byte) {
|
||||
if iter.head == iter.tail {
|
||||
if iter.loadMore() {
|
||||
ret = iter.buf[iter.head]
|
||||
iter.head++
|
||||
return ret
|
||||
}
|
||||
return 0
|
||||
}
|
||||
ret = iter.buf[iter.head]
|
||||
iter.head++
|
||||
return ret
|
||||
}
|
||||
|
||||
func (iter *Iterator) loadMore() bool {
|
||||
if iter.reader == nil {
|
||||
if iter.Error == nil {
|
||||
iter.head = iter.tail
|
||||
iter.Error = io.EOF
|
||||
}
|
||||
return false
|
||||
}
|
||||
if iter.captured != nil {
|
||||
iter.captured = append(iter.captured,
|
||||
iter.buf[iter.captureStartedAt:iter.tail]...)
|
||||
iter.captureStartedAt = 0
|
||||
}
|
||||
for {
|
||||
n, err := iter.reader.Read(iter.buf)
|
||||
if n == 0 {
|
||||
if err != nil {
|
||||
if iter.Error == nil {
|
||||
iter.Error = err
|
||||
}
|
||||
return false
|
||||
}
|
||||
} else {
|
||||
iter.head = 0
|
||||
iter.tail = n
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) unreadByte() {
|
||||
if iter.Error != nil {
|
||||
return
|
||||
}
|
||||
iter.head--
|
||||
return
|
||||
}
|
||||
|
||||
// Read the next STT element as generic interface{}.
|
||||
func (iter *Iterator) Read() interface{} {
|
||||
valueType := iter.WhatIsNext()
|
||||
switch valueType {
|
||||
case StringValue:
|
||||
return iter.ReadString()
|
||||
case NumberValue:
|
||||
return iter.ReadFloat64()
|
||||
case NilValue:
|
||||
iter.skipBytes('n', 'u', 'l', 'l')
|
||||
return nil
|
||||
case BoolValue:
|
||||
return iter.ReadBool()
|
||||
default:
|
||||
iter.ReportError("Read", fmt.Sprintf("unexpected value type: %v", valueType))
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
// limit maximum depth of nesting
|
||||
const maxDepth = 20
|
||||
|
||||
func (iter *Iterator) incrementDepth() (success bool) {
|
||||
iter.depth++
|
||||
if iter.depth <= maxDepth {
|
||||
return true
|
||||
}
|
||||
iter.ReportError("incrementDepth", "exceeded max depth")
|
||||
return false
|
||||
}
|
||||
|
||||
func (iter *Iterator) decrementDepth() (success bool) {
|
||||
iter.depth--
|
||||
if iter.depth >= 0 {
|
||||
return true
|
||||
}
|
||||
iter.ReportError("decrementDepth", "unexpected negative nesting")
|
||||
return false
|
||||
}
|
||||
@ -0,0 +1,300 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"io"
|
||||
"strconv"
|
||||
"strings"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var floatDigits []int8
|
||||
|
||||
const invalidCharForNumber = int8(-1)
|
||||
const endOfNumber = int8(-2)
|
||||
const dotInNumber = int8(-3)
|
||||
|
||||
func init() {
|
||||
floatDigits = make([]int8, 256)
|
||||
for i := 0; i < len(floatDigits); i++ {
|
||||
floatDigits[i] = invalidCharForNumber
|
||||
}
|
||||
for i := int8('0'); i <= int8('9'); i++ {
|
||||
floatDigits[i] = i - int8('0')
|
||||
}
|
||||
floatDigits[','] = endOfNumber
|
||||
floatDigits['/'] = endOfNumber
|
||||
floatDigits[' '] = endOfNumber
|
||||
floatDigits['\t'] = endOfNumber
|
||||
floatDigits['\n'] = endOfNumber
|
||||
floatDigits['.'] = dotInNumber
|
||||
}
|
||||
|
||||
//ReadFloat32 read float32
|
||||
func (iter *Iterator) ReadFloat32() (ret float32) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
return -iter.readPositiveFloat32()
|
||||
}
|
||||
iter.unreadByte()
|
||||
return iter.readPositiveFloat32()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readPositiveFloat32() (ret float32) {
|
||||
i := iter.head
|
||||
// first char
|
||||
if i == iter.tail {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
c := iter.buf[i]
|
||||
i++
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case invalidCharForNumber:
|
||||
return iter.readFloat32SlowPath()
|
||||
case endOfNumber:
|
||||
iter.ReportError("readFloat32", "empty number")
|
||||
return
|
||||
case dotInNumber:
|
||||
iter.ReportError("readFloat32", "leading dot is invalid")
|
||||
return
|
||||
case 0:
|
||||
if i == iter.tail {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
c = iter.buf[i]
|
||||
switch c {
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
iter.ReportError("readFloat32", "leading zero is invalid")
|
||||
return
|
||||
}
|
||||
}
|
||||
value := uint64(ind)
|
||||
// chars before dot
|
||||
non_decimal_loop:
|
||||
for ; i < iter.tail; i++ {
|
||||
c = iter.buf[i]
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case invalidCharForNumber:
|
||||
return iter.readFloat32SlowPath()
|
||||
case endOfNumber:
|
||||
iter.head = i
|
||||
return float32(value)
|
||||
case dotInNumber:
|
||||
break non_decimal_loop
|
||||
}
|
||||
if value > uint64SafeToMultiple10 {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
|
||||
}
|
||||
// chars after dot
|
||||
if c == '.' {
|
||||
i++
|
||||
decimalPlaces := 0
|
||||
if i == iter.tail {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
for ; i < iter.tail; i++ {
|
||||
c = iter.buf[i]
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case endOfNumber:
|
||||
if decimalPlaces > 0 && decimalPlaces < len(pow10) {
|
||||
iter.head = i
|
||||
return float32(float64(value) / float64(pow10[decimalPlaces]))
|
||||
}
|
||||
// too many decimal places
|
||||
return iter.readFloat32SlowPath()
|
||||
case invalidCharForNumber, dotInNumber:
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
decimalPlaces++
|
||||
if value > uint64SafeToMultiple10 {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind)
|
||||
}
|
||||
}
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readFloat32SlowPath() (ret float32) {
|
||||
str := iter.readNumberAsString()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
errMsg := validateFloat(str)
|
||||
if errMsg != "" {
|
||||
iter.ReportError("readFloat32SlowPath", errMsg)
|
||||
return
|
||||
}
|
||||
val, err := strconv.ParseFloat(str, 32)
|
||||
if err != nil {
|
||||
iter.Error = err
|
||||
return
|
||||
}
|
||||
return float32(val)
|
||||
}
|
||||
|
||||
func (iter *Iterator) readNumberAsString() (ret string) {
|
||||
strBuf := [16]byte{}
|
||||
str := strBuf[0:0]
|
||||
load_loop:
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
switch c {
|
||||
case '+', '-', '.', 'e', 'E', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
str = append(str, c)
|
||||
continue
|
||||
default:
|
||||
iter.head = i
|
||||
break load_loop
|
||||
}
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
break
|
||||
}
|
||||
}
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
if len(str) == 0 {
|
||||
iter.ReportError("readNumberAsString", "invalid number")
|
||||
}
|
||||
return *(*string)(unsafe.Pointer(&str))
|
||||
}
|
||||
|
||||
// ReadFloat64 read float64
|
||||
func (iter *Iterator) ReadFloat64() (ret float64) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
return -iter.readPositiveFloat64()
|
||||
}
|
||||
iter.unreadByte()
|
||||
return iter.readPositiveFloat64()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readPositiveFloat64() (ret float64) {
|
||||
i := iter.head
|
||||
// first char
|
||||
if i == iter.tail {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
c := iter.buf[i]
|
||||
i++
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case invalidCharForNumber:
|
||||
return iter.readFloat64SlowPath()
|
||||
case endOfNumber:
|
||||
iter.ReportError("readFloat64", "empty number")
|
||||
return
|
||||
case dotInNumber:
|
||||
iter.ReportError("readFloat64", "leading dot is invalid")
|
||||
return
|
||||
case 0:
|
||||
if i == iter.tail {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
c = iter.buf[i]
|
||||
switch c {
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
iter.ReportError("readFloat64", "leading zero is invalid")
|
||||
return
|
||||
}
|
||||
}
|
||||
value := uint64(ind)
|
||||
// chars before dot
|
||||
non_decimal_loop:
|
||||
for ; i < iter.tail; i++ {
|
||||
c = iter.buf[i]
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case invalidCharForNumber:
|
||||
return iter.readFloat64SlowPath()
|
||||
case endOfNumber:
|
||||
iter.head = i
|
||||
return float64(value)
|
||||
case dotInNumber:
|
||||
break non_decimal_loop
|
||||
}
|
||||
if value > uint64SafeToMultiple10 {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
|
||||
}
|
||||
// chars after dot
|
||||
if c == '.' {
|
||||
i++
|
||||
decimalPlaces := 0
|
||||
if i == iter.tail {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
for ; i < iter.tail; i++ {
|
||||
c = iter.buf[i]
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case endOfNumber:
|
||||
if decimalPlaces > 0 && decimalPlaces < len(pow10) {
|
||||
iter.head = i
|
||||
return float64(value) / float64(pow10[decimalPlaces])
|
||||
}
|
||||
// too many decimal places
|
||||
return iter.readFloat64SlowPath()
|
||||
case invalidCharForNumber, dotInNumber:
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
decimalPlaces++
|
||||
if value > uint64SafeToMultiple10 {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind)
|
||||
if value > maxFloat64 {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
}
|
||||
}
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readFloat64SlowPath() (ret float64) {
|
||||
str := iter.readNumberAsString()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
errMsg := validateFloat(str)
|
||||
if errMsg != "" {
|
||||
iter.ReportError("readFloat64SlowPath", errMsg)
|
||||
return
|
||||
}
|
||||
val, err := strconv.ParseFloat(str, 64)
|
||||
if err != nil {
|
||||
iter.Error = err
|
||||
return
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func validateFloat(str string) string {
|
||||
// strconv.ParseFloat is not validating `1.` or `1.e1`
|
||||
if len(str) == 0 {
|
||||
return "empty number"
|
||||
}
|
||||
if str[0] == '-' {
|
||||
return "-- is not valid"
|
||||
}
|
||||
dotPos := strings.IndexByte(str, '.')
|
||||
if dotPos != -1 {
|
||||
if dotPos == len(str)-1 {
|
||||
return "dot can not be last character"
|
||||
}
|
||||
switch str[dotPos+1] {
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
default:
|
||||
return "missing digit after dot"
|
||||
}
|
||||
}
|
||||
return ""
|
||||
}
|
||||
@ -0,0 +1,346 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"math"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
var intDigits []int8
|
||||
|
||||
const uint32SafeToMultiply10 = uint32(0xffffffff)/10 - 1
|
||||
const uint64SafeToMultiple10 = uint64(0xffffffffffffffff)/10 - 1
|
||||
const maxFloat64 = 1<<53 - 1
|
||||
|
||||
func init() {
|
||||
intDigits = make([]int8, 256)
|
||||
for i := 0; i < len(intDigits); i++ {
|
||||
intDigits[i] = invalidCharForNumber
|
||||
}
|
||||
for i := int8('0'); i <= int8('9'); i++ {
|
||||
intDigits[i] = i - int8('0')
|
||||
}
|
||||
}
|
||||
|
||||
// ReadUint read uint
|
||||
func (iter *Iterator) ReadUint() uint {
|
||||
if strconv.IntSize == 32 {
|
||||
return uint(iter.ReadUint32())
|
||||
}
|
||||
return uint(iter.ReadUint64())
|
||||
}
|
||||
|
||||
// ReadInt read int
|
||||
func (iter *Iterator) ReadInt() int {
|
||||
if strconv.IntSize == 32 {
|
||||
return int(iter.ReadInt32())
|
||||
}
|
||||
return int(iter.ReadInt64())
|
||||
}
|
||||
|
||||
// ReadInt8 read int8
|
||||
func (iter *Iterator) ReadInt8() (ret int8) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
val := iter.readUint32(iter.readByte())
|
||||
if val > math.MaxInt8+1 {
|
||||
iter.ReportError("ReadInt8", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return -int8(val)
|
||||
}
|
||||
val := iter.readUint32(c)
|
||||
if val > math.MaxInt8 {
|
||||
iter.ReportError("ReadInt8", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return int8(val)
|
||||
}
|
||||
|
||||
// ReadUint8 read uint8
|
||||
func (iter *Iterator) ReadUint8() (ret uint8) {
|
||||
val := iter.readUint32(iter.nextToken())
|
||||
if val > math.MaxUint8 {
|
||||
iter.ReportError("ReadUint8", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return uint8(val)
|
||||
}
|
||||
|
||||
// ReadInt16 read int16
|
||||
func (iter *Iterator) ReadInt16() (ret int16) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
val := iter.readUint32(iter.readByte())
|
||||
if val > math.MaxInt16+1 {
|
||||
iter.ReportError("ReadInt16", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return -int16(val)
|
||||
}
|
||||
val := iter.readUint32(c)
|
||||
if val > math.MaxInt16 {
|
||||
iter.ReportError("ReadInt16", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return int16(val)
|
||||
}
|
||||
|
||||
// ReadUint16 read uint16
|
||||
func (iter *Iterator) ReadUint16() (ret uint16) {
|
||||
val := iter.readUint32(iter.nextToken())
|
||||
if val > math.MaxUint16 {
|
||||
iter.ReportError("ReadUint16", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return uint16(val)
|
||||
}
|
||||
|
||||
// ReadInt32 read int32
|
||||
func (iter *Iterator) ReadInt32() (ret int32) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
val := iter.readUint32(iter.readByte())
|
||||
if val > math.MaxInt32+1 {
|
||||
iter.ReportError("ReadInt32", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return -int32(val)
|
||||
}
|
||||
val := iter.readUint32(c)
|
||||
if val > math.MaxInt32 {
|
||||
iter.ReportError("ReadInt32", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return int32(val)
|
||||
}
|
||||
|
||||
// ReadUint32 read uint32
|
||||
func (iter *Iterator) ReadUint32() (ret uint32) {
|
||||
return iter.readUint32(iter.nextToken())
|
||||
}
|
||||
|
||||
func (iter *Iterator) readUint32(c byte) (ret uint32) {
|
||||
ind := intDigits[c]
|
||||
if ind == 0 {
|
||||
iter.assertInteger()
|
||||
return 0 // single zero
|
||||
}
|
||||
if ind == invalidCharForNumber {
|
||||
iter.ReportError("readUint32", "unexpected character: "+string([]byte{byte(ind)}))
|
||||
return
|
||||
}
|
||||
value := uint32(ind)
|
||||
if iter.tail-iter.head > 10 {
|
||||
i := iter.head
|
||||
ind2 := intDigits[iter.buf[i]]
|
||||
if ind2 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
i++
|
||||
ind3 := intDigits[iter.buf[i]]
|
||||
if ind3 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*10 + uint32(ind2)
|
||||
}
|
||||
//iter.head = i + 1
|
||||
//value = value * 100 + uint32(ind2) * 10 + uint32(ind3)
|
||||
i++
|
||||
ind4 := intDigits[iter.buf[i]]
|
||||
if ind4 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*100 + uint32(ind2)*10 + uint32(ind3)
|
||||
}
|
||||
i++
|
||||
ind5 := intDigits[iter.buf[i]]
|
||||
if ind5 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*1000 + uint32(ind2)*100 + uint32(ind3)*10 + uint32(ind4)
|
||||
}
|
||||
i++
|
||||
ind6 := intDigits[iter.buf[i]]
|
||||
if ind6 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*10000 + uint32(ind2)*1000 + uint32(ind3)*100 + uint32(ind4)*10 + uint32(ind5)
|
||||
}
|
||||
i++
|
||||
ind7 := intDigits[iter.buf[i]]
|
||||
if ind7 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*100000 + uint32(ind2)*10000 + uint32(ind3)*1000 + uint32(ind4)*100 + uint32(ind5)*10 + uint32(ind6)
|
||||
}
|
||||
i++
|
||||
ind8 := intDigits[iter.buf[i]]
|
||||
if ind8 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*1000000 + uint32(ind2)*100000 + uint32(ind3)*10000 + uint32(ind4)*1000 + uint32(ind5)*100 + uint32(ind6)*10 + uint32(ind7)
|
||||
}
|
||||
i++
|
||||
ind9 := intDigits[iter.buf[i]]
|
||||
value = value*10000000 + uint32(ind2)*1000000 + uint32(ind3)*100000 + uint32(ind4)*10000 + uint32(ind5)*1000 + uint32(ind6)*100 + uint32(ind7)*10 + uint32(ind8)
|
||||
iter.head = i
|
||||
if ind9 == invalidCharForNumber {
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
}
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
ind = intDigits[iter.buf[i]]
|
||||
if ind == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
if value > uint32SafeToMultiply10 {
|
||||
value2 := (value << 3) + (value << 1) + uint32(ind)
|
||||
if value2 < value {
|
||||
iter.ReportError("readUint32", "overflow")
|
||||
return
|
||||
}
|
||||
value = value2
|
||||
continue
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint32(ind)
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ReadInt64 read int64
|
||||
func (iter *Iterator) ReadInt64() (ret int64) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
val := iter.readUint64(iter.readByte())
|
||||
if val > math.MaxInt64+1 {
|
||||
iter.ReportError("ReadInt64", "overflow: "+strconv.FormatUint(uint64(val), 10))
|
||||
return
|
||||
}
|
||||
return -int64(val)
|
||||
}
|
||||
val := iter.readUint64(c)
|
||||
if val > math.MaxInt64 {
|
||||
iter.ReportError("ReadInt64", "overflow: "+strconv.FormatUint(uint64(val), 10))
|
||||
return
|
||||
}
|
||||
return int64(val)
|
||||
}
|
||||
|
||||
// ReadUint64 read uint64
|
||||
func (iter *Iterator) ReadUint64() uint64 {
|
||||
return iter.readUint64(iter.nextToken())
|
||||
}
|
||||
|
||||
func (iter *Iterator) readUint64(c byte) (ret uint64) {
|
||||
ind := intDigits[c]
|
||||
if ind == 0 {
|
||||
iter.assertInteger()
|
||||
return 0 // single zero
|
||||
}
|
||||
if ind == invalidCharForNumber {
|
||||
iter.ReportError("readUint64", "unexpected character: "+string([]byte{byte(ind)}))
|
||||
return
|
||||
}
|
||||
value := uint64(ind)
|
||||
if iter.tail-iter.head > 10 {
|
||||
i := iter.head
|
||||
ind2 := intDigits[iter.buf[i]]
|
||||
if ind2 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
i++
|
||||
ind3 := intDigits[iter.buf[i]]
|
||||
if ind3 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*10 + uint64(ind2)
|
||||
}
|
||||
//iter.head = i + 1
|
||||
//value = value * 100 + uint32(ind2) * 10 + uint32(ind3)
|
||||
i++
|
||||
ind4 := intDigits[iter.buf[i]]
|
||||
if ind4 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*100 + uint64(ind2)*10 + uint64(ind3)
|
||||
}
|
||||
i++
|
||||
ind5 := intDigits[iter.buf[i]]
|
||||
if ind5 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*1000 + uint64(ind2)*100 + uint64(ind3)*10 + uint64(ind4)
|
||||
}
|
||||
i++
|
||||
ind6 := intDigits[iter.buf[i]]
|
||||
if ind6 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*10000 + uint64(ind2)*1000 + uint64(ind3)*100 + uint64(ind4)*10 + uint64(ind5)
|
||||
}
|
||||
i++
|
||||
ind7 := intDigits[iter.buf[i]]
|
||||
if ind7 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*100000 + uint64(ind2)*10000 + uint64(ind3)*1000 + uint64(ind4)*100 + uint64(ind5)*10 + uint64(ind6)
|
||||
}
|
||||
i++
|
||||
ind8 := intDigits[iter.buf[i]]
|
||||
if ind8 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*1000000 + uint64(ind2)*100000 + uint64(ind3)*10000 + uint64(ind4)*1000 + uint64(ind5)*100 + uint64(ind6)*10 + uint64(ind7)
|
||||
}
|
||||
i++
|
||||
ind9 := intDigits[iter.buf[i]]
|
||||
value = value*10000000 + uint64(ind2)*1000000 + uint64(ind3)*100000 + uint64(ind4)*10000 + uint64(ind5)*1000 + uint64(ind6)*100 + uint64(ind7)*10 + uint64(ind8)
|
||||
iter.head = i
|
||||
if ind9 == invalidCharForNumber {
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
}
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
ind = intDigits[iter.buf[i]]
|
||||
if ind == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
if value > uint64SafeToMultiple10 {
|
||||
value2 := (value << 3) + (value << 1) + uint64(ind)
|
||||
if value2 < value {
|
||||
iter.ReportError("readUint64", "overflow")
|
||||
return
|
||||
}
|
||||
value = value2
|
||||
continue
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind)
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) assertInteger() {
|
||||
if iter.head < iter.tail && iter.buf[iter.head] == '.' {
|
||||
iter.ReportError("assertInteger", "can not decode float as int")
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,68 @@
|
||||
package stt
|
||||
|
||||
import "fmt"
|
||||
|
||||
// ReadNil reads a json object as nil and
|
||||
// returns whether it's a nil or not
|
||||
func (iter *Iterator) ReadNil() (ret bool) {
|
||||
c := iter.nextToken()
|
||||
if c == 'n' {
|
||||
iter.skipBytes('u', 'l', 'l') // null
|
||||
return true
|
||||
}
|
||||
iter.unreadByte()
|
||||
return false
|
||||
}
|
||||
|
||||
// ReadBool reads t/true/f/false/1/0 as BoolValue
|
||||
func (iter *Iterator) ReadBool() (ret bool) {
|
||||
c := iter.nextToken()
|
||||
if c == 't' {
|
||||
iter.skipBytes('r', 'u', 'e')
|
||||
return true
|
||||
}
|
||||
if c == 'f' {
|
||||
iter.skipBytes('a', 'l', 's', 'e')
|
||||
return false
|
||||
}
|
||||
if c == '0' {
|
||||
return false
|
||||
}
|
||||
if c == '1' {
|
||||
return true
|
||||
}
|
||||
iter.ReportError("ReadBool", "expect t/true/1 or f/false/0, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
|
||||
// Skip skips an object and positions to relatively the next object
|
||||
func (iter *Iterator) Skip() {
|
||||
iter.skipString()
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipString() {
|
||||
if !iter.trySkipString() {
|
||||
iter.unreadByte()
|
||||
iter.ReadString()
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) trySkipString() bool {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
if c == '/' {
|
||||
iter.head = i
|
||||
return true // valid
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipBytes(bytes ...byte) {
|
||||
for _, b := range bytes {
|
||||
if iter.readByte() != b {
|
||||
iter.ReportError("skipBytes", fmt.Sprintf("expect %s", string(bytes)))
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,44 @@
|
||||
package stt
|
||||
|
||||
import "bytes"
|
||||
|
||||
// ReadString read string from iterator
|
||||
func (iter *Iterator) ReadString() (ret string) {
|
||||
depthEnding := encryptBytes([]byte{'/'}, iter.depth)
|
||||
depthEndingLen := len(depthEnding)
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
if iter.depth > 1 {
|
||||
if i+depthEndingLen >= iter.tail {
|
||||
return
|
||||
}
|
||||
endings := iter.buf[i : i+depthEndingLen]
|
||||
if bytes.Equal(endings, depthEnding) {
|
||||
ret = string(iter.buf[iter.head:i])
|
||||
iter.head = i
|
||||
break
|
||||
}
|
||||
} else {
|
||||
c := iter.buf[i]
|
||||
if c == '/' {
|
||||
ret = string(iter.buf[iter.head:i])
|
||||
iter.head = i
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
ret = string(decryptBytes([]byte(ret), iter.depth))
|
||||
return
|
||||
}
|
||||
|
||||
func (iter *Iterator) ReadFieldName() (ret string) {
|
||||
// key@=value/
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
if c == '@' {
|
||||
ret = string(iter.buf[iter.head:i])
|
||||
iter.head = i
|
||||
return ret
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
@ -0,0 +1,28 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestReadFieldName(t *testing.T) {
|
||||
//str := "type@=chatmsg/a@=false/bbbbbb@=123/c@=cid@AA=xx1@AScnn@AA=xx2@AS/"
|
||||
//str := "type@=chatmsg/a@=false/bbbbbb@=123/c@=/d@=/"
|
||||
str := "type@=noble_num_info/sum@=28/vn@=16944/rid@=2947432/list@=lev@AA=8@ASnum@AA=4@AS@Slev@AA=5@ASnum@AA=1@AS@Slev@AA=4@ASnum@AA=3@AS@Slev@AA=3@ASnum@AA=1@AS@Slev@AA=1@ASnum@AA=3@AS@Slev@AA=7@ASnum@AA=16@AS@S/"
|
||||
//iter := ConfigDefault.BorrowIterator([]byte(str))
|
||||
//fieldName := iter.ReadFieldName()
|
||||
var s struct {
|
||||
//Type string `stt:"type"`
|
||||
A bool `stt:"a"`
|
||||
B int32 `stt:"bbbbbb"`
|
||||
C struct {
|
||||
Cid string `stt:"cid"`
|
||||
Cnn string `stt:"cnn"`
|
||||
} `stt:"c,omitempty"`
|
||||
}
|
||||
err := Unmarshal([]byte(str), &s)
|
||||
fmt.Println(s, err)
|
||||
|
||||
ret, err := Marshal(&s)
|
||||
fmt.Println(string(ret), err)
|
||||
}
|
||||
@ -0,0 +1,40 @@
|
||||
package stt
|
||||
|
||||
import "io"
|
||||
|
||||
// IteratorPool a thread safe pool of iterators with same configuration
|
||||
type IteratorPool interface {
|
||||
BorrowIterator(data []byte) *Iterator
|
||||
ReturnIterator(iter *Iterator)
|
||||
}
|
||||
|
||||
// StreamPool a thread safe pool of streams with same configuration
|
||||
type StreamPool interface {
|
||||
BorrowStream(writer io.Writer) *Stream
|
||||
ReturnStream(stream *Stream)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) BorrowStream(writer io.Writer) *Stream {
|
||||
stream := cfg.streamPool.Get().(*Stream)
|
||||
stream.Reset(writer)
|
||||
return stream
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) ReturnStream(stream *Stream) {
|
||||
stream.out = nil
|
||||
stream.Error = nil
|
||||
stream.Attachment = nil
|
||||
cfg.streamPool.Put(stream)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) BorrowIterator(data []byte) *Iterator {
|
||||
iter := cfg.iteratorPool.Get().(*Iterator)
|
||||
iter.ResetBytes(data)
|
||||
return iter
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) ReturnIterator(iter *Iterator) {
|
||||
iter.Error = nil
|
||||
iter.Attachment = nil
|
||||
cfg.iteratorPool.Put(iter)
|
||||
}
|
||||
@ -0,0 +1,104 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfArray(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
arrayType := typ.(*reflect2.UnsafeArrayType)
|
||||
decoder := decoderOfType(ctx.append("[arrayElem]"), arrayType.Elem())
|
||||
return &arrayDecoder{arrayType, decoder}
|
||||
}
|
||||
|
||||
func encoderOfArray(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
arrayType := typ.(*reflect2.UnsafeArrayType)
|
||||
if arrayType.Len() == 0 {
|
||||
return emptyArrayEncoder{}
|
||||
}
|
||||
encoder := encoderOfType(ctx.append("[arrayElem]"), arrayType.Elem())
|
||||
return &arrayEncoder{arrayType, encoder}
|
||||
}
|
||||
|
||||
type emptyArrayEncoder struct{}
|
||||
|
||||
func (encoder emptyArrayEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
//stream.WriteEmptyArray()
|
||||
}
|
||||
|
||||
func (encoder emptyArrayEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return true
|
||||
}
|
||||
|
||||
type arrayEncoder struct {
|
||||
arrayType *reflect2.UnsafeArrayType
|
||||
elemEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *arrayEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
//stream.WriteArrayStart()
|
||||
//elemPtr := unsafe.Pointer(ptr)
|
||||
//encoder.elemEncoder.Encode(elemPtr, stream)
|
||||
//for i := 1; i < encoder.arrayType.Len(); i++ {
|
||||
// stream.WriteMore()
|
||||
// elemPtr = encoder.arrayType.UnsafeGetIndex(ptr, i)
|
||||
// encoder.elemEncoder.Encode(elemPtr, stream)
|
||||
//}
|
||||
//stream.WriteArrayEnd()
|
||||
//if stream.Error != nil && stream.Error != io.EOF {
|
||||
// stream.Error = fmt.Errorf("%v: %s", encoder.arrayType, stream.Error.Error())
|
||||
//}
|
||||
}
|
||||
|
||||
func (encoder *arrayEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
type arrayDecoder struct {
|
||||
arrayType *reflect2.UnsafeArrayType
|
||||
elemDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *arrayDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.doDecode(ptr, iter)
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
iter.Error = fmt.Errorf("%v: %s", decoder.arrayType, iter.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (decoder *arrayDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
c := iter.nextToken()
|
||||
arrayType := decoder.arrayType
|
||||
if c == 'n' {
|
||||
iter.skipBytes('u', 'l', 'l')
|
||||
return
|
||||
}
|
||||
if c != '[' {
|
||||
iter.ReportError("decode array", "expect [ or n, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c == ']' {
|
||||
return
|
||||
}
|
||||
iter.unreadByte()
|
||||
elemPtr := arrayType.UnsafeGetIndex(ptr, 0)
|
||||
decoder.elemDecoder.Decode(elemPtr, iter)
|
||||
length := 1
|
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() {
|
||||
if length >= arrayType.Len() {
|
||||
iter.Skip()
|
||||
continue
|
||||
}
|
||||
idx := length
|
||||
length += 1
|
||||
elemPtr = arrayType.UnsafeGetIndex(ptr, idx)
|
||||
decoder.elemDecoder.Decode(elemPtr, iter)
|
||||
}
|
||||
if c != ']' {
|
||||
iter.ReportError("decode array", "expect ], but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,70 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"github.com/modern-go/reflect2"
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
type dynamicEncoder struct {
|
||||
valType reflect2.Type
|
||||
}
|
||||
|
||||
func (encoder *dynamicEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
obj := encoder.valType.UnsafeIndirect(ptr)
|
||||
stream.WriteVal(obj)
|
||||
}
|
||||
|
||||
func (encoder *dynamicEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.valType.UnsafeIndirect(ptr) == nil
|
||||
}
|
||||
|
||||
type efaceDecoder struct {
|
||||
}
|
||||
|
||||
func (decoder *efaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
pObj := (*interface{})(ptr)
|
||||
obj := *pObj
|
||||
if obj == nil {
|
||||
*pObj = iter.Read()
|
||||
return
|
||||
}
|
||||
typ := reflect2.TypeOf(obj)
|
||||
if typ.Kind() != reflect.Ptr {
|
||||
*pObj = iter.Read()
|
||||
return
|
||||
}
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
ptrElemType := ptrType.Elem()
|
||||
if iter.WhatIsNext() == NilValue {
|
||||
if ptrElemType.Kind() != reflect.Ptr {
|
||||
iter.skipBytes('n', 'u', 'l', 'l')
|
||||
*pObj = nil
|
||||
return
|
||||
}
|
||||
}
|
||||
if reflect2.IsNil(obj) {
|
||||
obj := ptrElemType.New()
|
||||
iter.ReadVal(obj)
|
||||
*pObj = obj
|
||||
return
|
||||
}
|
||||
iter.ReadVal(obj)
|
||||
}
|
||||
|
||||
type ifaceDecoder struct {
|
||||
valType *reflect2.UnsafeIFaceType
|
||||
}
|
||||
|
||||
func (decoder *ifaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if iter.ReadNil() {
|
||||
decoder.valType.UnsafeSet(ptr, decoder.valType.UnsafeNew())
|
||||
return
|
||||
}
|
||||
obj := decoder.valType.UnsafeIndirect(ptr)
|
||||
if reflect2.IsNil(obj) {
|
||||
iter.ReportError("decode non empty interface", "can not unmarshal into nil")
|
||||
return
|
||||
}
|
||||
iter.ReadVal(obj)
|
||||
}
|
||||
@ -0,0 +1,476 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"reflect"
|
||||
"sort"
|
||||
"strings"
|
||||
"unicode"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var typeDecoders = map[string]ValDecoder{}
|
||||
var fieldDecoders = map[string]ValDecoder{}
|
||||
var typeEncoders = map[string]ValEncoder{}
|
||||
var fieldEncoders = map[string]ValEncoder{}
|
||||
var extensions = []Extension{}
|
||||
|
||||
// StructDescriptor describe how should we encode/decode the struct
|
||||
type StructDescriptor struct {
|
||||
Type reflect2.Type
|
||||
Fields []*Binding
|
||||
}
|
||||
|
||||
// GetField get one field from the descriptor by its name.
|
||||
// Can not use map here to keep field orders.
|
||||
func (structDescriptor *StructDescriptor) GetField(fieldName string) *Binding {
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
if binding.Field.Name() == fieldName {
|
||||
return binding
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Binding describe how should we encode/decode the struct field
|
||||
type Binding struct {
|
||||
levels []int
|
||||
Field reflect2.StructField
|
||||
FromNames []string
|
||||
ToNames []string
|
||||
Encoder ValEncoder
|
||||
Decoder ValDecoder
|
||||
}
|
||||
|
||||
// Extension the one for all SPI. Customize encoding/decoding by specifying alternate encoder/decoder.
|
||||
// Can also rename fields by UpdateStructDescriptor.
|
||||
type Extension interface {
|
||||
UpdateStructDescriptor(structDescriptor *StructDescriptor)
|
||||
CreateMapKeyDecoder(typ reflect2.Type) ValDecoder
|
||||
CreateMapKeyEncoder(typ reflect2.Type) ValEncoder
|
||||
CreateDecoder(typ reflect2.Type) ValDecoder
|
||||
CreateEncoder(typ reflect2.Type) ValEncoder
|
||||
DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder
|
||||
DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder
|
||||
}
|
||||
|
||||
// DummyExtension embed this type get dummy implementation for all methods of Extension
|
||||
type DummyExtension struct {
|
||||
}
|
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension *DummyExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
|
||||
}
|
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension *DummyExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension *DummyExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateDecoder No-op
|
||||
func (extension *DummyExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateEncoder No-op
|
||||
func (extension *DummyExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension *DummyExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
|
||||
return decoder
|
||||
}
|
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension *DummyExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
|
||||
return encoder
|
||||
}
|
||||
|
||||
type EncoderExtension map[reflect2.Type]ValEncoder
|
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension EncoderExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
|
||||
}
|
||||
|
||||
// CreateDecoder No-op
|
||||
func (extension EncoderExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateEncoder get encoder from map
|
||||
func (extension EncoderExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
|
||||
return extension[typ]
|
||||
}
|
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension EncoderExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension EncoderExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension EncoderExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
|
||||
return decoder
|
||||
}
|
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension EncoderExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
|
||||
return encoder
|
||||
}
|
||||
|
||||
type DecoderExtension map[reflect2.Type]ValDecoder
|
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension DecoderExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
|
||||
}
|
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension DecoderExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension DecoderExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateDecoder get decoder from map
|
||||
func (extension DecoderExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
|
||||
return extension[typ]
|
||||
}
|
||||
|
||||
// CreateEncoder No-op
|
||||
func (extension DecoderExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension DecoderExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
|
||||
return decoder
|
||||
}
|
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension DecoderExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
|
||||
return encoder
|
||||
}
|
||||
|
||||
type funcDecoder struct {
|
||||
fun DecoderFunc
|
||||
}
|
||||
|
||||
func (decoder *funcDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.fun(ptr, iter)
|
||||
}
|
||||
|
||||
type funcEncoder struct {
|
||||
fun EncoderFunc
|
||||
isEmptyFunc func(ptr unsafe.Pointer) bool
|
||||
}
|
||||
|
||||
func (encoder *funcEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
encoder.fun(ptr, stream)
|
||||
}
|
||||
|
||||
func (encoder *funcEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
if encoder.isEmptyFunc == nil {
|
||||
return false
|
||||
}
|
||||
return encoder.isEmptyFunc(ptr)
|
||||
}
|
||||
|
||||
// DecoderFunc the function form of TypeDecoder
|
||||
type DecoderFunc func(ptr unsafe.Pointer, iter *Iterator)
|
||||
|
||||
// EncoderFunc the function form of TypeEncoder
|
||||
type EncoderFunc func(ptr unsafe.Pointer, stream *Stream)
|
||||
|
||||
// RegisterTypeDecoderFunc register TypeDecoder for a type with function
|
||||
func RegisterTypeDecoderFunc(typ string, fun DecoderFunc) {
|
||||
typeDecoders[typ] = &funcDecoder{fun}
|
||||
}
|
||||
|
||||
// RegisterTypeDecoder register TypeDecoder for a typ
|
||||
func RegisterTypeDecoder(typ string, decoder ValDecoder) {
|
||||
typeDecoders[typ] = decoder
|
||||
}
|
||||
|
||||
// RegisterFieldDecoderFunc register TypeDecoder for a struct field with function
|
||||
func RegisterFieldDecoderFunc(typ string, field string, fun DecoderFunc) {
|
||||
RegisterFieldDecoder(typ, field, &funcDecoder{fun})
|
||||
}
|
||||
|
||||
// RegisterFieldDecoder register TypeDecoder for a struct field
|
||||
func RegisterFieldDecoder(typ string, field string, decoder ValDecoder) {
|
||||
fieldDecoders[fmt.Sprintf("%s/%s", typ, field)] = decoder
|
||||
}
|
||||
|
||||
// RegisterTypeEncoderFunc register TypeEncoder for a type with encode/isEmpty function
|
||||
func RegisterTypeEncoderFunc(typ string, fun EncoderFunc, isEmptyFunc func(unsafe.Pointer) bool) {
|
||||
typeEncoders[typ] = &funcEncoder{fun, isEmptyFunc}
|
||||
}
|
||||
|
||||
// RegisterTypeEncoder register TypeEncoder for a type
|
||||
func RegisterTypeEncoder(typ string, encoder ValEncoder) {
|
||||
typeEncoders[typ] = encoder
|
||||
}
|
||||
|
||||
// RegisterFieldEncoderFunc register TypeEncoder for a struct field with encode/isEmpty function
|
||||
func RegisterFieldEncoderFunc(typ string, field string, fun EncoderFunc, isEmptyFunc func(unsafe.Pointer) bool) {
|
||||
RegisterFieldEncoder(typ, field, &funcEncoder{fun, isEmptyFunc})
|
||||
}
|
||||
|
||||
// RegisterFieldEncoder register TypeEncoder for a struct field
|
||||
func RegisterFieldEncoder(typ string, field string, encoder ValEncoder) {
|
||||
fieldEncoders[fmt.Sprintf("%s/%s", typ, field)] = encoder
|
||||
}
|
||||
|
||||
// RegisterExtension register extension
|
||||
func RegisterExtension(extension Extension) {
|
||||
extensions = append(extensions, extension)
|
||||
}
|
||||
|
||||
func getTypeDecoderFromExtension(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
decoder := _getTypeDecoderFromExtension(ctx, typ)
|
||||
if decoder != nil {
|
||||
for _, extension := range extensions {
|
||||
decoder = extension.DecorateDecoder(typ, decoder)
|
||||
}
|
||||
decoder = ctx.decoderExtension.DecorateDecoder(typ, decoder)
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
decoder = extension.DecorateDecoder(typ, decoder)
|
||||
}
|
||||
}
|
||||
return decoder
|
||||
}
|
||||
func _getTypeDecoderFromExtension(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
for _, extension := range extensions {
|
||||
decoder := extension.CreateDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
}
|
||||
decoder := ctx.decoderExtension.CreateDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
decoder := extension.CreateDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
}
|
||||
typeName := typ.String()
|
||||
decoder = typeDecoders[typeName]
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
decoder := typeDecoders[ptrType.Elem().String()]
|
||||
if decoder != nil {
|
||||
return &OptionalDecoder{ptrType.Elem(), decoder}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func getTypeEncoderFromExtension(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
encoder := _getTypeEncoderFromExtension(ctx, typ)
|
||||
if encoder != nil {
|
||||
for _, extension := range extensions {
|
||||
encoder = extension.DecorateEncoder(typ, encoder)
|
||||
}
|
||||
encoder = ctx.encoderExtension.DecorateEncoder(typ, encoder)
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
encoder = extension.DecorateEncoder(typ, encoder)
|
||||
}
|
||||
}
|
||||
return encoder
|
||||
}
|
||||
|
||||
func _getTypeEncoderFromExtension(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
for _, extension := range extensions {
|
||||
encoder := extension.CreateEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
}
|
||||
encoder := ctx.encoderExtension.CreateEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
encoder := extension.CreateEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
}
|
||||
typeName := typ.String()
|
||||
encoder = typeEncoders[typeName]
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
typePtr := typ.(*reflect2.UnsafePtrType)
|
||||
encoder := typeEncoders[typePtr.Elem().String()]
|
||||
if encoder != nil {
|
||||
return &OptionalEncoder{encoder}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func describeStruct(ctx *ctx, typ reflect2.Type) *StructDescriptor {
|
||||
structType := typ.(*reflect2.UnsafeStructType)
|
||||
embeddedBindings := []*Binding{}
|
||||
bindings := []*Binding{}
|
||||
for i := 0; i < structType.NumField(); i++ {
|
||||
field := structType.Field(i)
|
||||
tag, hasTag := field.Tag().Lookup(ctx.getTagKey())
|
||||
if ctx.onlyTaggedField && !hasTag && !field.Anonymous() {
|
||||
continue
|
||||
}
|
||||
if tag == "-" || field.Name() == "_" {
|
||||
continue
|
||||
}
|
||||
tagParts := strings.Split(tag, ",")
|
||||
if field.Anonymous() && (tag == "" || tagParts[0] == "") {
|
||||
if field.Type().Kind() == reflect.Struct {
|
||||
structDescriptor := describeStruct(ctx, field.Type())
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
binding.levels = append([]int{i}, binding.levels...)
|
||||
omitempty := binding.Encoder.(*structFieldEncoder).omitempty
|
||||
binding.Encoder = &structFieldEncoder{field, binding.Encoder, omitempty}
|
||||
binding.Decoder = &structFieldDecoder{field, binding.Decoder}
|
||||
embeddedBindings = append(embeddedBindings, binding)
|
||||
}
|
||||
continue
|
||||
} else if field.Type().Kind() == reflect.Ptr {
|
||||
ptrType := field.Type().(*reflect2.UnsafePtrType)
|
||||
if ptrType.Elem().Kind() == reflect.Struct {
|
||||
structDescriptor := describeStruct(ctx, ptrType.Elem())
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
binding.levels = append([]int{i}, binding.levels...)
|
||||
omitempty := binding.Encoder.(*structFieldEncoder).omitempty
|
||||
binding.Encoder = &dereferenceEncoder{binding.Encoder}
|
||||
binding.Encoder = &structFieldEncoder{field, binding.Encoder, omitempty}
|
||||
binding.Decoder = &dereferenceDecoder{ptrType.Elem(), binding.Decoder}
|
||||
binding.Decoder = &structFieldDecoder{field, binding.Decoder}
|
||||
embeddedBindings = append(embeddedBindings, binding)
|
||||
}
|
||||
continue
|
||||
}
|
||||
}
|
||||
}
|
||||
fieldNames := calcFieldNames(field.Name(), tagParts[0], tag)
|
||||
fieldCacheKey := fmt.Sprintf("%s/%s", typ.String(), field.Name())
|
||||
decoder := fieldDecoders[fieldCacheKey]
|
||||
if decoder == nil {
|
||||
decoder = decoderOfType(ctx.append(field.Name()), field.Type())
|
||||
}
|
||||
encoder := fieldEncoders[fieldCacheKey]
|
||||
if encoder == nil {
|
||||
encoder = encoderOfType(ctx.append(field.Name()), field.Type())
|
||||
}
|
||||
binding := &Binding{
|
||||
Field: field,
|
||||
FromNames: fieldNames,
|
||||
ToNames: fieldNames,
|
||||
Decoder: decoder,
|
||||
Encoder: encoder,
|
||||
}
|
||||
binding.levels = []int{i}
|
||||
bindings = append(bindings, binding)
|
||||
}
|
||||
return createStructDescriptor(ctx, typ, bindings, embeddedBindings)
|
||||
}
|
||||
|
||||
func createStructDescriptor(ctx *ctx, typ reflect2.Type, bindings []*Binding, embeddedBindings []*Binding) *StructDescriptor {
|
||||
structDescriptor := &StructDescriptor{
|
||||
Type: typ,
|
||||
Fields: bindings,
|
||||
}
|
||||
for _, extension := range extensions {
|
||||
extension.UpdateStructDescriptor(structDescriptor)
|
||||
}
|
||||
ctx.encoderExtension.UpdateStructDescriptor(structDescriptor)
|
||||
ctx.decoderExtension.UpdateStructDescriptor(structDescriptor)
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
extension.UpdateStructDescriptor(structDescriptor)
|
||||
}
|
||||
processTags(structDescriptor, ctx.frozenConfig)
|
||||
// merge normal & embedded bindings & sort with original order
|
||||
allBindings := sortableBindings(append(embeddedBindings, structDescriptor.Fields...))
|
||||
sort.Sort(allBindings)
|
||||
structDescriptor.Fields = allBindings
|
||||
return structDescriptor
|
||||
}
|
||||
|
||||
type sortableBindings []*Binding
|
||||
|
||||
func (bindings sortableBindings) Len() int {
|
||||
return len(bindings)
|
||||
}
|
||||
|
||||
func (bindings sortableBindings) Less(i, j int) bool {
|
||||
left := bindings[i].levels
|
||||
right := bindings[j].levels
|
||||
k := 0
|
||||
for {
|
||||
if left[k] < right[k] {
|
||||
return true
|
||||
} else if left[k] > right[k] {
|
||||
return false
|
||||
}
|
||||
k++
|
||||
}
|
||||
}
|
||||
|
||||
func (bindings sortableBindings) Swap(i, j int) {
|
||||
bindings[i], bindings[j] = bindings[j], bindings[i]
|
||||
}
|
||||
|
||||
func processTags(structDescriptor *StructDescriptor, cfg *frozenConfig) {
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
shouldOmitEmpty := false
|
||||
tagParts := strings.Split(binding.Field.Tag().Get(cfg.getTagKey()), ",")
|
||||
for _, tagPart := range tagParts[1:] {
|
||||
if tagPart == "omitempty" {
|
||||
shouldOmitEmpty = true
|
||||
}
|
||||
}
|
||||
binding.Decoder = &structFieldDecoder{binding.Field, binding.Decoder}
|
||||
binding.Encoder = &structFieldEncoder{binding.Field, binding.Encoder, shouldOmitEmpty}
|
||||
}
|
||||
}
|
||||
|
||||
func calcFieldNames(originalFieldName string, tagProvidedFieldName string, wholeTag string) []string {
|
||||
// ignore?
|
||||
if wholeTag == "-" {
|
||||
return []string{}
|
||||
}
|
||||
// rename?
|
||||
var fieldNames []string
|
||||
if tagProvidedFieldName == "" {
|
||||
fieldNames = []string{originalFieldName}
|
||||
} else {
|
||||
fieldNames = []string{tagProvidedFieldName}
|
||||
}
|
||||
// private?
|
||||
isNotExported := unicode.IsLower(rune(originalFieldName[0])) || originalFieldName[0] == '_'
|
||||
if isNotExported {
|
||||
fieldNames = []string{}
|
||||
}
|
||||
return fieldNames
|
||||
}
|
||||
@ -0,0 +1,306 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfMap(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
mapType := typ.(*reflect2.UnsafeMapType)
|
||||
keyDecoder := decoderOfMapKey(ctx.append("[mapKey]"), mapType.Key())
|
||||
elemDecoder := decoderOfType(ctx.append("[mapElem]"), mapType.Elem())
|
||||
return &mapDecoder{
|
||||
mapType: mapType,
|
||||
keyType: mapType.Key(),
|
||||
elemType: mapType.Elem(),
|
||||
keyDecoder: keyDecoder,
|
||||
elemDecoder: elemDecoder,
|
||||
}
|
||||
}
|
||||
|
||||
func encoderOfMap(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
mapType := typ.(*reflect2.UnsafeMapType)
|
||||
//if ctx.sortMapKeys {
|
||||
// return &sortKeysMapEncoder{
|
||||
// mapType: mapType,
|
||||
// keyEncoder: encoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()),
|
||||
// elemEncoder: encoderOfType(ctx.append("[mapElem]"), mapType.Elem()),
|
||||
// }
|
||||
//}
|
||||
return &mapEncoder{
|
||||
mapType: mapType,
|
||||
keyEncoder: encoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()),
|
||||
elemEncoder: encoderOfType(ctx.append("[mapElem]"), mapType.Elem()),
|
||||
}
|
||||
}
|
||||
|
||||
func decoderOfMapKey(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
decoder := ctx.decoderExtension.CreateMapKeyDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
decoder := extension.CreateMapKeyDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
}
|
||||
|
||||
switch typ.Kind() {
|
||||
case reflect.String:
|
||||
return decoderOfType(ctx, reflect2.DefaultTypeOfKind(reflect.String))
|
||||
case reflect.Bool,
|
||||
reflect.Uint8, reflect.Int8,
|
||||
reflect.Uint16, reflect.Int16,
|
||||
reflect.Uint32, reflect.Int32,
|
||||
reflect.Uint64, reflect.Int64,
|
||||
reflect.Uint, reflect.Int,
|
||||
reflect.Float32, reflect.Float64,
|
||||
reflect.Uintptr:
|
||||
typ = reflect2.DefaultTypeOfKind(typ.Kind())
|
||||
return &numericMapKeyDecoder{decoderOfType(ctx, typ)}
|
||||
default:
|
||||
return &lazyErrorDecoder{err: fmt.Errorf("unsupported map key type: %v", typ)}
|
||||
}
|
||||
}
|
||||
|
||||
func encoderOfMapKey(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
encoder := ctx.encoderExtension.CreateMapKeyEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
encoder := extension.CreateMapKeyEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
}
|
||||
|
||||
switch typ.Kind() {
|
||||
case reflect.String:
|
||||
return encoderOfType(ctx, reflect2.DefaultTypeOfKind(reflect.String))
|
||||
case reflect.Bool,
|
||||
reflect.Uint8, reflect.Int8,
|
||||
reflect.Uint16, reflect.Int16,
|
||||
reflect.Uint32, reflect.Int32,
|
||||
reflect.Uint64, reflect.Int64,
|
||||
reflect.Uint, reflect.Int,
|
||||
reflect.Float32, reflect.Float64,
|
||||
reflect.Uintptr:
|
||||
typ = reflect2.DefaultTypeOfKind(typ.Kind())
|
||||
return &numericMapKeyEncoder{encoderOfType(ctx, typ)}
|
||||
default:
|
||||
if typ.Kind() == reflect.Interface {
|
||||
return &dynamicMapKeyEncoder{ctx, typ}
|
||||
}
|
||||
return &lazyErrorEncoder{err: fmt.Errorf("unsupported map key type: %v", typ)}
|
||||
}
|
||||
}
|
||||
|
||||
type mapDecoder struct {
|
||||
mapType *reflect2.UnsafeMapType
|
||||
keyType reflect2.Type
|
||||
elemType reflect2.Type
|
||||
keyDecoder ValDecoder
|
||||
elemDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *mapDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
mapType := decoder.mapType
|
||||
c := iter.nextToken()
|
||||
if c == 'n' {
|
||||
iter.skipBytes('u', 'l', 'l')
|
||||
*(*unsafe.Pointer)(ptr) = nil
|
||||
mapType.UnsafeSet(ptr, mapType.UnsafeNew())
|
||||
return
|
||||
}
|
||||
if mapType.UnsafeIsNil(ptr) {
|
||||
mapType.UnsafeSet(ptr, mapType.UnsafeMakeMap(0))
|
||||
}
|
||||
if c != '{' {
|
||||
iter.ReportError("ReadMapCB", `expect { or n, but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c == '}' {
|
||||
return
|
||||
}
|
||||
iter.unreadByte()
|
||||
key := decoder.keyType.UnsafeNew()
|
||||
decoder.keyDecoder.Decode(key, iter)
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
elem := decoder.elemType.UnsafeNew()
|
||||
decoder.elemDecoder.Decode(elem, iter)
|
||||
decoder.mapType.UnsafeSetIndex(ptr, key, elem)
|
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() {
|
||||
key := decoder.keyType.UnsafeNew()
|
||||
decoder.keyDecoder.Decode(key, iter)
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
elem := decoder.elemType.UnsafeNew()
|
||||
decoder.elemDecoder.Decode(elem, iter)
|
||||
decoder.mapType.UnsafeSetIndex(ptr, key, elem)
|
||||
}
|
||||
if c != '}' {
|
||||
iter.ReportError("ReadMapCB", `expect }, but found `+string([]byte{c}))
|
||||
}
|
||||
}
|
||||
|
||||
type numericMapKeyDecoder struct {
|
||||
decoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *numericMapKeyDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
c := iter.nextToken()
|
||||
if c != '"' {
|
||||
iter.ReportError("ReadMapCB", `expect ", but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
decoder.decoder.Decode(ptr, iter)
|
||||
c = iter.nextToken()
|
||||
if c != '"' {
|
||||
iter.ReportError("ReadMapCB", `expect ", but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
type numericMapKeyEncoder struct {
|
||||
encoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *numericMapKeyEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.writeBytes('"')
|
||||
encoder.encoder.Encode(ptr, stream)
|
||||
stream.writeBytes('"')
|
||||
}
|
||||
|
||||
func (encoder *numericMapKeyEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
type dynamicMapKeyEncoder struct {
|
||||
ctx *ctx
|
||||
valType reflect2.Type
|
||||
}
|
||||
|
||||
func (encoder *dynamicMapKeyEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
obj := encoder.valType.UnsafeIndirect(ptr)
|
||||
encoderOfMapKey(encoder.ctx, reflect2.TypeOf(obj)).Encode(reflect2.PtrOf(obj), stream)
|
||||
}
|
||||
|
||||
func (encoder *dynamicMapKeyEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
obj := encoder.valType.UnsafeIndirect(ptr)
|
||||
return encoderOfMapKey(encoder.ctx, reflect2.TypeOf(obj)).IsEmpty(reflect2.PtrOf(obj))
|
||||
}
|
||||
|
||||
type mapEncoder struct {
|
||||
mapType *reflect2.UnsafeMapType
|
||||
keyEncoder ValEncoder
|
||||
elemEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *mapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if *(*unsafe.Pointer)(ptr) == nil {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
//stream.WriteObjectStart()
|
||||
//iter := encoder.mapType.UnsafeIterate(ptr)
|
||||
//for i := 0; iter.HasNext(); i++ {
|
||||
// if i != 0 {
|
||||
// stream.WriteMore()
|
||||
// }
|
||||
// key, elem := iter.UnsafeNext()
|
||||
// encoder.keyEncoder.Encode(key, stream)
|
||||
// if stream.indention > 0 {
|
||||
// stream.writeTwoBytes(byte(':'), byte(' '))
|
||||
// } else {
|
||||
// stream.writeByte(':')
|
||||
// }
|
||||
// encoder.elemEncoder.Encode(elem, stream)
|
||||
//}
|
||||
//stream.WriteObjectEnd()
|
||||
}
|
||||
|
||||
func (encoder *mapEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
iter := encoder.mapType.UnsafeIterate(ptr)
|
||||
return !iter.HasNext()
|
||||
}
|
||||
|
||||
//type sortKeysMapEncoder struct {
|
||||
// mapType *reflect2.UnsafeMapType
|
||||
// keyEncoder ValEncoder
|
||||
// elemEncoder ValEncoder
|
||||
//}
|
||||
//
|
||||
//func (encoder *sortKeysMapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
// if *(*unsafe.Pointer)(ptr) == nil {
|
||||
// stream.WriteNil()
|
||||
// return
|
||||
// }
|
||||
// stream.WriteObjectStart()
|
||||
// mapIter := encoder.mapType.UnsafeIterate(ptr)
|
||||
// subStream := stream.cfg.BorrowStream(nil)
|
||||
// subStream.Attachment = stream.Attachment
|
||||
// subIter := stream.cfg.BorrowIterator(nil)
|
||||
// keyValues := encodedKeyValues{}
|
||||
// for mapIter.HasNext() {
|
||||
// key, elem := mapIter.UnsafeNext()
|
||||
// subStreamIndex := subStream.Buffered()
|
||||
// encoder.keyEncoder.Encode(key, subStream)
|
||||
// if subStream.Error != nil && subStream.Error != io.EOF && stream.Error == nil {
|
||||
// stream.Error = subStream.Error
|
||||
// }
|
||||
// encodedKey := subStream.Buffer()[subStreamIndex:]
|
||||
// subIter.ResetBytes(encodedKey)
|
||||
// decodedKey := subIter.ReadString()
|
||||
// if stream.indention > 0 {
|
||||
// subStream.writeTwoBytes(byte(':'), byte(' '))
|
||||
// } else {
|
||||
// subStream.writeByte(':')
|
||||
// }
|
||||
// encoder.elemEncoder.Encode(elem, subStream)
|
||||
// keyValues = append(keyValues, encodedKV{
|
||||
// key: decodedKey,
|
||||
// keyValue: subStream.Buffer()[subStreamIndex:],
|
||||
// })
|
||||
// }
|
||||
// sort.Sort(keyValues)
|
||||
// for i, keyValue := range keyValues {
|
||||
// if i != 0 {
|
||||
// stream.WriteMore()
|
||||
// }
|
||||
// stream.Write(keyValue.keyValue)
|
||||
// }
|
||||
// if subStream.Error != nil && stream.Error == nil {
|
||||
// stream.Error = subStream.Error
|
||||
// }
|
||||
// stream.WriteObjectEnd()
|
||||
// stream.cfg.ReturnStream(subStream)
|
||||
// stream.cfg.ReturnIterator(subIter)
|
||||
//}
|
||||
//
|
||||
//func (encoder *sortKeysMapEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
// iter := encoder.mapType.UnsafeIterate(ptr)
|
||||
// return !iter.HasNext()
|
||||
//}
|
||||
|
||||
type encodedKeyValues []encodedKV
|
||||
|
||||
type encodedKV struct {
|
||||
key string
|
||||
keyValue []byte
|
||||
}
|
||||
|
||||
func (sv encodedKeyValues) Len() int { return len(sv) }
|
||||
func (sv encodedKeyValues) Swap(i, j int) { sv[i], sv[j] = sv[j], sv[i] }
|
||||
func (sv encodedKeyValues) Less(i, j int) bool { return sv[i].key < sv[j].key }
|
||||
@ -0,0 +1,396 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"github.com/modern-go/reflect2"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
const ptrSize = 32 << uintptr(^uintptr(0)>>63)
|
||||
|
||||
func createEncoderOfNative(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
typeName := typ.String()
|
||||
kind := typ.Kind()
|
||||
switch kind {
|
||||
case reflect.String:
|
||||
if typeName != "string" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*string)(nil)).Elem())
|
||||
}
|
||||
return &stringCodec{}
|
||||
case reflect.Int:
|
||||
if typeName != "int" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int)(nil)).Elem())
|
||||
}
|
||||
if strconv.IntSize == 32 {
|
||||
return &int32Codec{}
|
||||
}
|
||||
return &int64Codec{}
|
||||
case reflect.Int8:
|
||||
if typeName != "int8" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int8)(nil)).Elem())
|
||||
}
|
||||
return &int8Codec{}
|
||||
case reflect.Int16:
|
||||
if typeName != "int16" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int16)(nil)).Elem())
|
||||
}
|
||||
return &int16Codec{}
|
||||
case reflect.Int32:
|
||||
if typeName != "int32" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int32)(nil)).Elem())
|
||||
}
|
||||
return &int32Codec{}
|
||||
case reflect.Int64:
|
||||
if typeName != "int64" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int64)(nil)).Elem())
|
||||
}
|
||||
return &int64Codec{}
|
||||
case reflect.Uint:
|
||||
if typeName != "uint" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint)(nil)).Elem())
|
||||
}
|
||||
if strconv.IntSize == 32 {
|
||||
return &uint32Codec{}
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Uint8:
|
||||
if typeName != "uint8" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint8)(nil)).Elem())
|
||||
}
|
||||
return &uint8Codec{}
|
||||
case reflect.Uint16:
|
||||
if typeName != "uint16" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint16)(nil)).Elem())
|
||||
}
|
||||
return &uint16Codec{}
|
||||
case reflect.Uint32:
|
||||
if typeName != "uint32" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint32)(nil)).Elem())
|
||||
}
|
||||
return &uint32Codec{}
|
||||
case reflect.Uintptr:
|
||||
if typeName != "uintptr" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uintptr)(nil)).Elem())
|
||||
}
|
||||
if ptrSize == 32 {
|
||||
return &uint32Codec{}
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Uint64:
|
||||
if typeName != "uint64" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint64)(nil)).Elem())
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Float32:
|
||||
if typeName != "float32" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*float32)(nil)).Elem())
|
||||
}
|
||||
return &float32Codec{}
|
||||
case reflect.Float64:
|
||||
if typeName != "float64" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*float64)(nil)).Elem())
|
||||
}
|
||||
return &float64Codec{}
|
||||
case reflect.Bool:
|
||||
if typeName != "bool" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*bool)(nil)).Elem())
|
||||
}
|
||||
return &boolCodec{}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func createDecoderOfNative(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
typeName := typ.String()
|
||||
switch typ.Kind() {
|
||||
case reflect.String:
|
||||
if typeName != "string" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*string)(nil)).Elem())
|
||||
}
|
||||
return &stringCodec{}
|
||||
case reflect.Int:
|
||||
if typeName != "int" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int)(nil)).Elem())
|
||||
}
|
||||
if strconv.IntSize == 32 {
|
||||
return &int32Codec{}
|
||||
}
|
||||
return &int64Codec{}
|
||||
case reflect.Int8:
|
||||
if typeName != "int8" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int8)(nil)).Elem())
|
||||
}
|
||||
return &int8Codec{}
|
||||
case reflect.Int16:
|
||||
if typeName != "int16" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int16)(nil)).Elem())
|
||||
}
|
||||
return &int16Codec{}
|
||||
case reflect.Int32:
|
||||
if typeName != "int32" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int32)(nil)).Elem())
|
||||
}
|
||||
return &int32Codec{}
|
||||
case reflect.Int64:
|
||||
if typeName != "int64" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int64)(nil)).Elem())
|
||||
}
|
||||
return &int64Codec{}
|
||||
case reflect.Uint:
|
||||
if typeName != "uint" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint)(nil)).Elem())
|
||||
}
|
||||
if strconv.IntSize == 32 {
|
||||
return &uint32Codec{}
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Uint8:
|
||||
if typeName != "uint8" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint8)(nil)).Elem())
|
||||
}
|
||||
return &uint8Codec{}
|
||||
case reflect.Uint16:
|
||||
if typeName != "uint16" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint16)(nil)).Elem())
|
||||
}
|
||||
return &uint16Codec{}
|
||||
case reflect.Uint32:
|
||||
if typeName != "uint32" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint32)(nil)).Elem())
|
||||
}
|
||||
return &uint32Codec{}
|
||||
case reflect.Uintptr:
|
||||
if typeName != "uintptr" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uintptr)(nil)).Elem())
|
||||
}
|
||||
if ptrSize == 32 {
|
||||
return &uint32Codec{}
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Uint64:
|
||||
if typeName != "uint64" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint64)(nil)).Elem())
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Float32:
|
||||
if typeName != "float32" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*float32)(nil)).Elem())
|
||||
}
|
||||
return &float32Codec{}
|
||||
case reflect.Float64:
|
||||
if typeName != "float64" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*float64)(nil)).Elem())
|
||||
}
|
||||
return &float64Codec{}
|
||||
case reflect.Bool:
|
||||
if typeName != "bool" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*bool)(nil)).Elem())
|
||||
}
|
||||
return &boolCodec{}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type stringCodec struct {
|
||||
}
|
||||
|
||||
func (codec *stringCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
*((*string)(ptr)) = iter.ReadString()
|
||||
}
|
||||
|
||||
func (codec *stringCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
str := *((*string)(ptr))
|
||||
stream.WriteString(str)
|
||||
}
|
||||
|
||||
func (codec *stringCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*string)(ptr)) == ""
|
||||
}
|
||||
|
||||
type int8Codec struct {
|
||||
}
|
||||
|
||||
func (codec *int8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*int8)(ptr)) = iter.ReadInt8()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *int8Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteInt8(*((*int8)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *int8Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*int8)(ptr)) == 0
|
||||
}
|
||||
|
||||
type int16Codec struct {
|
||||
}
|
||||
|
||||
func (codec *int16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*int16)(ptr)) = iter.ReadInt16()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *int16Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteInt16(*((*int16)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *int16Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*int16)(ptr)) == 0
|
||||
}
|
||||
|
||||
type int32Codec struct {
|
||||
}
|
||||
|
||||
func (codec *int32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*int32)(ptr)) = iter.ReadInt32()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *int32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteInt32(*((*int32)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *int32Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*int32)(ptr)) == 0
|
||||
}
|
||||
|
||||
type int64Codec struct {
|
||||
}
|
||||
|
||||
func (codec *int64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*int64)(ptr)) = iter.ReadInt64()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *int64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteInt64(*((*int64)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *int64Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*int64)(ptr)) == 0
|
||||
}
|
||||
|
||||
type uint8Codec struct {
|
||||
}
|
||||
|
||||
func (codec *uint8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*uint8)(ptr)) = iter.ReadUint8()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *uint8Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteUint8(*((*uint8)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *uint8Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*uint8)(ptr)) == 0
|
||||
}
|
||||
|
||||
type uint16Codec struct {
|
||||
}
|
||||
|
||||
func (codec *uint16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*uint16)(ptr)) = iter.ReadUint16()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *uint16Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteUint16(*((*uint16)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *uint16Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*uint16)(ptr)) == 0
|
||||
}
|
||||
|
||||
type uint32Codec struct {
|
||||
}
|
||||
|
||||
func (codec *uint32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*uint32)(ptr)) = iter.ReadUint32()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *uint32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteUint32(*((*uint32)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *uint32Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*uint32)(ptr)) == 0
|
||||
}
|
||||
|
||||
type uint64Codec struct {
|
||||
}
|
||||
|
||||
func (codec *uint64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*uint64)(ptr)) = iter.ReadUint64()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *uint64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteUint64(*((*uint64)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *uint64Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*uint64)(ptr)) == 0
|
||||
}
|
||||
|
||||
type float32Codec struct {
|
||||
}
|
||||
|
||||
func (codec *float32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*float32)(ptr)) = iter.ReadFloat32()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *float32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteFloat32(*((*float32)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *float32Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*float32)(ptr)) == 0
|
||||
}
|
||||
|
||||
type float64Codec struct {
|
||||
}
|
||||
|
||||
func (codec *float64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*float64)(ptr)) = iter.ReadFloat64()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *float64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteFloat64(*((*float64)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *float64Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*float64)(ptr)) == 0
|
||||
}
|
||||
|
||||
type boolCodec struct {
|
||||
}
|
||||
|
||||
func (codec *boolCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*bool)(ptr)) = iter.ReadBool()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *boolCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteBool(*((*bool)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *boolCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return !(*((*bool)(ptr)))
|
||||
}
|
||||
@ -0,0 +1,129 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"github.com/modern-go/reflect2"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfOptional(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
elemType := ptrType.Elem()
|
||||
decoder := decoderOfType(ctx, elemType)
|
||||
return &OptionalDecoder{elemType, decoder}
|
||||
}
|
||||
|
||||
func encoderOfOptional(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
elemType := ptrType.Elem()
|
||||
elemEncoder := encoderOfType(ctx, elemType)
|
||||
encoder := &OptionalEncoder{elemEncoder}
|
||||
return encoder
|
||||
}
|
||||
|
||||
type OptionalDecoder struct {
|
||||
ValueType reflect2.Type
|
||||
ValueDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *OptionalDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if iter.ReadNil() {
|
||||
*((*unsafe.Pointer)(ptr)) = nil
|
||||
} else {
|
||||
if *((*unsafe.Pointer)(ptr)) == nil {
|
||||
//pointer to null, we have to allocate memory to hold the value
|
||||
newPtr := decoder.ValueType.UnsafeNew()
|
||||
decoder.ValueDecoder.Decode(newPtr, iter)
|
||||
*((*unsafe.Pointer)(ptr)) = newPtr
|
||||
} else {
|
||||
//reuse existing instance
|
||||
decoder.ValueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type dereferenceDecoder struct {
|
||||
// only to deference a pointer
|
||||
valueType reflect2.Type
|
||||
valueDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *dereferenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if *((*unsafe.Pointer)(ptr)) == nil {
|
||||
//pointer to null, we have to allocate memory to hold the value
|
||||
newPtr := decoder.valueType.UnsafeNew()
|
||||
decoder.valueDecoder.Decode(newPtr, iter)
|
||||
*((*unsafe.Pointer)(ptr)) = newPtr
|
||||
} else {
|
||||
//reuse existing instance
|
||||
decoder.valueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter)
|
||||
}
|
||||
}
|
||||
|
||||
type OptionalEncoder struct {
|
||||
ValueEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *OptionalEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if *((*unsafe.Pointer)(ptr)) == nil {
|
||||
stream.WriteNil()
|
||||
} else {
|
||||
encoder.ValueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream)
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *OptionalEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*unsafe.Pointer)(ptr)) == nil
|
||||
}
|
||||
|
||||
type dereferenceEncoder struct {
|
||||
ValueEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *dereferenceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if *((*unsafe.Pointer)(ptr)) == nil {
|
||||
stream.WriteNil()
|
||||
} else {
|
||||
encoder.ValueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream)
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *dereferenceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
dePtr := *((*unsafe.Pointer)(ptr))
|
||||
if dePtr == nil {
|
||||
return true
|
||||
}
|
||||
return encoder.ValueEncoder.IsEmpty(dePtr)
|
||||
}
|
||||
|
||||
func (encoder *dereferenceEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool {
|
||||
deReferenced := *((*unsafe.Pointer)(ptr))
|
||||
if deReferenced == nil {
|
||||
return true
|
||||
}
|
||||
isEmbeddedPtrNil, converted := encoder.ValueEncoder.(IsEmbeddedPtrNil)
|
||||
if !converted {
|
||||
return false
|
||||
}
|
||||
fieldPtr := unsafe.Pointer(deReferenced)
|
||||
return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr)
|
||||
}
|
||||
|
||||
type referenceEncoder struct {
|
||||
encoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *referenceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
encoder.encoder.Encode(unsafe.Pointer(&ptr), stream)
|
||||
}
|
||||
|
||||
func (encoder *referenceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.encoder.IsEmpty(unsafe.Pointer(&ptr))
|
||||
}
|
||||
|
||||
type referenceDecoder struct {
|
||||
decoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *referenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.decoder.Decode(unsafe.Pointer(&ptr), iter)
|
||||
}
|
||||
@ -0,0 +1,99 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfSlice(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
sliceType := typ.(*reflect2.UnsafeSliceType)
|
||||
decoder := decoderOfType(ctx.append("[sliceElem]"), sliceType.Elem())
|
||||
return &sliceDecoder{sliceType, decoder}
|
||||
}
|
||||
|
||||
func encoderOfSlice(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
sliceType := typ.(*reflect2.UnsafeSliceType)
|
||||
encoder := encoderOfType(ctx.append("[sliceElem]"), sliceType.Elem())
|
||||
return &sliceEncoder{sliceType, encoder}
|
||||
}
|
||||
|
||||
type sliceEncoder struct {
|
||||
sliceType *reflect2.UnsafeSliceType
|
||||
elemEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *sliceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
//if encoder.sliceType.UnsafeIsNil(ptr) {
|
||||
// stream.WriteNil()
|
||||
// return
|
||||
//}
|
||||
//length := encoder.sliceType.UnsafeLengthOf(ptr)
|
||||
//if length == 0 {
|
||||
// stream.WriteEmptyArray()
|
||||
// return
|
||||
//}
|
||||
//stream.WriteArrayStart()
|
||||
//encoder.elemEncoder.Encode(encoder.sliceType.UnsafeGetIndex(ptr, 0), stream)
|
||||
//for i := 1; i < length; i++ {
|
||||
// stream.WriteMore()
|
||||
// elemPtr := encoder.sliceType.UnsafeGetIndex(ptr, i)
|
||||
// encoder.elemEncoder.Encode(elemPtr, stream)
|
||||
//}
|
||||
//stream.WriteArrayEnd()
|
||||
//if stream.Error != nil && stream.Error != io.EOF {
|
||||
// stream.Error = fmt.Errorf("%v: %s", encoder.sliceType, stream.Error.Error())
|
||||
//}
|
||||
}
|
||||
|
||||
func (encoder *sliceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.sliceType.UnsafeLengthOf(ptr) == 0
|
||||
}
|
||||
|
||||
type sliceDecoder struct {
|
||||
sliceType *reflect2.UnsafeSliceType
|
||||
elemDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *sliceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.doDecode(ptr, iter)
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
iter.Error = fmt.Errorf("%v: %s", decoder.sliceType, iter.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (decoder *sliceDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
c := iter.nextToken()
|
||||
sliceType := decoder.sliceType
|
||||
if c == 'n' {
|
||||
iter.skipBytes('u', 'l', 'l')
|
||||
sliceType.UnsafeSetNil(ptr)
|
||||
return
|
||||
}
|
||||
if c != '[' {
|
||||
iter.ReportError("decode slice", "expect [ or n, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c == ']' {
|
||||
sliceType.UnsafeSet(ptr, sliceType.UnsafeMakeSlice(0, 0))
|
||||
return
|
||||
}
|
||||
iter.unreadByte()
|
||||
sliceType.UnsafeGrow(ptr, 1)
|
||||
elemPtr := sliceType.UnsafeGetIndex(ptr, 0)
|
||||
decoder.elemDecoder.Decode(elemPtr, iter)
|
||||
length := 1
|
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() {
|
||||
idx := length
|
||||
length += 1
|
||||
sliceType.UnsafeGrow(ptr, length)
|
||||
elemPtr = sliceType.UnsafeGetIndex(ptr, idx)
|
||||
decoder.elemDecoder.Decode(elemPtr, iter)
|
||||
}
|
||||
if c != ']' {
|
||||
iter.ReportError("decode slice", "expect ], but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,202 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"strings"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfStruct(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
bindings := map[string]*Binding{}
|
||||
structDescriptor := describeStruct(ctx, typ)
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
for _, fromName := range binding.FromNames {
|
||||
old := bindings[fromName]
|
||||
if old == nil {
|
||||
bindings[fromName] = binding
|
||||
continue
|
||||
}
|
||||
ignoreOld, ignoreNew := resolveConflictBinding(ctx.frozenConfig, old, binding)
|
||||
if ignoreOld {
|
||||
delete(bindings, fromName)
|
||||
}
|
||||
if !ignoreNew {
|
||||
bindings[fromName] = binding
|
||||
}
|
||||
}
|
||||
}
|
||||
fields := map[string]*structFieldDecoder{}
|
||||
for k, binding := range bindings {
|
||||
fields[k] = binding.Decoder.(*structFieldDecoder)
|
||||
}
|
||||
return createStructDecoder(ctx, typ, fields)
|
||||
}
|
||||
|
||||
func createStructDecoder(ctx *ctx, typ reflect2.Type, fields map[string]*structFieldDecoder) ValDecoder {
|
||||
switch len(fields) {
|
||||
case 0:
|
||||
return &skipObjectDecoder{typ}
|
||||
}
|
||||
return &generalStructDecoder{typ, fields}
|
||||
}
|
||||
|
||||
type generalStructDecoder struct {
|
||||
typ reflect2.Type
|
||||
fields map[string]*structFieldDecoder
|
||||
}
|
||||
|
||||
func (decoder *generalStructDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.incrementDepth() {
|
||||
return
|
||||
}
|
||||
var splitBytes = encryptBytes([]byte{'/'}, iter.depth)
|
||||
cc := splitBytes
|
||||
var c byte = '/'
|
||||
for {
|
||||
if iter.head >= iter.tail {
|
||||
break
|
||||
}
|
||||
if iter.depth > 1 {
|
||||
if bytes.Equal(cc, splitBytes) {
|
||||
nc := iter.nextToken()
|
||||
iter.unreadByte()
|
||||
if nc != '/' && nc != '@' {
|
||||
decoder.decodeOneField(ptr, iter)
|
||||
cc = cc[:0]
|
||||
for i, sbLen := 0, len(splitBytes); i < sbLen; i++ {
|
||||
cc = append(cc, iter.nextToken())
|
||||
}
|
||||
} else {
|
||||
break
|
||||
}
|
||||
} else {
|
||||
cc = cc[:1]
|
||||
for i, sbLen := 0, len(splitBytes); i < sbLen; i++ {
|
||||
cc = append(cc, iter.nextToken())
|
||||
}
|
||||
continue
|
||||
}
|
||||
} else {
|
||||
if c == '/' {
|
||||
nc := iter.nextToken()
|
||||
iter.unreadByte()
|
||||
if nc != '/' {
|
||||
decoder.decodeOneField(ptr, iter)
|
||||
c = iter.nextToken()
|
||||
} else {
|
||||
break
|
||||
}
|
||||
} else {
|
||||
c = iter.nextToken()
|
||||
continue
|
||||
}
|
||||
}
|
||||
}
|
||||
if iter.Error != nil && iter.Error != io.EOF && len(decoder.typ.Type1().Name()) != 0 {
|
||||
iter.Error = fmt.Errorf("%v.%s", decoder.typ, iter.Error.Error())
|
||||
}
|
||||
if c != '/' {
|
||||
iter.ReportError("struct Decode", `expect /, but found `+string([]byte{c}))
|
||||
}
|
||||
iter.decrementDepth()
|
||||
}
|
||||
|
||||
func (decoder *generalStructDecoder) decodeOneField(ptr unsafe.Pointer, iter *Iterator) {
|
||||
var field string
|
||||
var fieldDecoder *structFieldDecoder
|
||||
|
||||
field = iter.ReadFieldName()
|
||||
fieldDecoder = decoder.fields[field]
|
||||
if fieldDecoder == nil && !iter.cfg.caseSensitive {
|
||||
fieldDecoder = decoder.fields[strings.ToLower(field)]
|
||||
}
|
||||
|
||||
if fieldDecoder == nil {
|
||||
c := iter.nextToken()
|
||||
if c != '@' {
|
||||
iter.ReportError("ReadObject", "expect @ after object field, but found "+string([]byte{c}))
|
||||
}
|
||||
iter.skipBytes('=')
|
||||
iter.Skip()
|
||||
return
|
||||
}
|
||||
c := iter.nextToken()
|
||||
if c != '@' {
|
||||
iter.ReportError("ReadObject", "expect @ after object field, but found "+string([]byte{c}))
|
||||
}
|
||||
iter.unreadByte()
|
||||
if iter.depth > 1 {
|
||||
iter.skipBytes(encryptBytes([]byte("@="), iter.depth)...)
|
||||
} else {
|
||||
iter.skipBytes('@', '=')
|
||||
}
|
||||
fieldDecoder.Decode(ptr, iter)
|
||||
}
|
||||
|
||||
type skipObjectDecoder struct {
|
||||
typ reflect2.Type
|
||||
}
|
||||
|
||||
func (decoder *skipObjectDecoder) Decode(_ unsafe.Pointer, iter *Iterator) {
|
||||
valueType := iter.WhatIsNext()
|
||||
if valueType != NilValue {
|
||||
iter.ReportError("skipObjectDecoder", "expect object or null")
|
||||
return
|
||||
}
|
||||
iter.Skip()
|
||||
}
|
||||
|
||||
type structFieldDecoder struct {
|
||||
field reflect2.StructField
|
||||
fieldDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *structFieldDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
fieldPtr := decoder.field.UnsafeGet(ptr)
|
||||
decoder.fieldDecoder.Decode(fieldPtr, iter)
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
iter.Error = fmt.Errorf("%s: %s", decoder.field.Name(), iter.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
type stringModeStringDecoder struct {
|
||||
elemDecoder ValDecoder
|
||||
cfg *frozenConfig
|
||||
}
|
||||
|
||||
func (decoder *stringModeStringDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.elemDecoder.Decode(ptr, iter)
|
||||
str := *((*string)(ptr))
|
||||
tempIter := decoder.cfg.BorrowIterator([]byte(str))
|
||||
defer decoder.cfg.ReturnIterator(tempIter)
|
||||
*((*string)(ptr)) = tempIter.ReadString()
|
||||
}
|
||||
|
||||
type stringModeNumberDecoder struct {
|
||||
elemDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *stringModeNumberDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if iter.WhatIsNext() == NilValue {
|
||||
decoder.elemDecoder.Decode(ptr, iter)
|
||||
return
|
||||
}
|
||||
|
||||
c := iter.nextToken()
|
||||
if c != '"' {
|
||||
iter.ReportError("stringModeNumberDecoder", `expect ", but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
decoder.elemDecoder.Decode(ptr, iter)
|
||||
if iter.Error != nil {
|
||||
return
|
||||
}
|
||||
c = iter.readByte()
|
||||
if c != '"' {
|
||||
iter.ReportError("stringModeNumberDecoder", `expect ", but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,183 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func encoderOfStruct(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
type bindingTo struct {
|
||||
binding *Binding
|
||||
toName string
|
||||
ignored bool
|
||||
}
|
||||
orderedBindings := []*bindingTo{}
|
||||
structDescriptor := describeStruct(ctx, typ)
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
for _, toName := range binding.ToNames {
|
||||
new := &bindingTo{
|
||||
binding: binding,
|
||||
toName: toName,
|
||||
}
|
||||
for _, old := range orderedBindings {
|
||||
if old.toName != toName {
|
||||
continue
|
||||
}
|
||||
old.ignored, new.ignored = resolveConflictBinding(ctx.frozenConfig, old.binding, new.binding)
|
||||
}
|
||||
orderedBindings = append(orderedBindings, new)
|
||||
}
|
||||
}
|
||||
if len(orderedBindings) == 0 {
|
||||
return &emptyStructEncoder{}
|
||||
}
|
||||
finalOrderedFields := []structFieldTo{}
|
||||
for _, bindingTo := range orderedBindings {
|
||||
if !bindingTo.ignored {
|
||||
finalOrderedFields = append(finalOrderedFields, structFieldTo{
|
||||
encoder: bindingTo.binding.Encoder.(*structFieldEncoder),
|
||||
toName: bindingTo.toName,
|
||||
})
|
||||
}
|
||||
}
|
||||
return &structEncoder{typ, finalOrderedFields}
|
||||
}
|
||||
|
||||
func createCheckIsEmpty(ctx *ctx, typ reflect2.Type) checkIsEmpty {
|
||||
encoder := createEncoderOfNative(ctx, typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
kind := typ.Kind()
|
||||
switch kind {
|
||||
case reflect.Interface:
|
||||
return &dynamicEncoder{typ}
|
||||
case reflect.Struct:
|
||||
return &structEncoder{typ: typ}
|
||||
case reflect.Array:
|
||||
return &arrayEncoder{}
|
||||
case reflect.Slice:
|
||||
return &sliceEncoder{}
|
||||
case reflect.Map:
|
||||
return encoderOfMap(ctx, typ)
|
||||
case reflect.Ptr:
|
||||
return &OptionalEncoder{}
|
||||
default:
|
||||
return &lazyErrorEncoder{err: fmt.Errorf("unsupported type: %v", typ)}
|
||||
}
|
||||
}
|
||||
|
||||
func resolveConflictBinding(cfg *frozenConfig, old, new *Binding) (ignoreOld, ignoreNew bool) {
|
||||
newTagged := new.Field.Tag().Get(cfg.getTagKey()) != ""
|
||||
oldTagged := old.Field.Tag().Get(cfg.getTagKey()) != ""
|
||||
if newTagged {
|
||||
if oldTagged {
|
||||
if len(old.levels) > len(new.levels) {
|
||||
return true, false
|
||||
} else if len(new.levels) > len(old.levels) {
|
||||
return false, true
|
||||
} else {
|
||||
return true, true
|
||||
}
|
||||
} else {
|
||||
return true, false
|
||||
}
|
||||
} else {
|
||||
if oldTagged {
|
||||
return true, false
|
||||
}
|
||||
if len(old.levels) > len(new.levels) {
|
||||
return true, false
|
||||
} else if len(new.levels) > len(old.levels) {
|
||||
return false, true
|
||||
} else {
|
||||
return true, true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type structFieldEncoder struct {
|
||||
field reflect2.StructField
|
||||
fieldEncoder ValEncoder
|
||||
omitempty bool
|
||||
}
|
||||
|
||||
func (encoder *structFieldEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
fieldPtr := encoder.field.UnsafeGet(ptr)
|
||||
encoder.fieldEncoder.Encode(fieldPtr, stream)
|
||||
if stream.Error != nil && stream.Error != io.EOF {
|
||||
stream.Error = fmt.Errorf("%s: %s", encoder.field.Name(), stream.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *structFieldEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
fieldPtr := encoder.field.UnsafeGet(ptr)
|
||||
return encoder.fieldEncoder.IsEmpty(fieldPtr)
|
||||
}
|
||||
|
||||
func (encoder *structFieldEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool {
|
||||
isEmbeddedPtrNil, converted := encoder.fieldEncoder.(IsEmbeddedPtrNil)
|
||||
if !converted {
|
||||
return false
|
||||
}
|
||||
fieldPtr := encoder.field.UnsafeGet(ptr)
|
||||
return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr)
|
||||
}
|
||||
|
||||
type IsEmbeddedPtrNil interface {
|
||||
IsEmbeddedPtrNil(ptr unsafe.Pointer) bool
|
||||
}
|
||||
|
||||
type structEncoder struct {
|
||||
typ reflect2.Type
|
||||
fields []structFieldTo
|
||||
}
|
||||
|
||||
type structFieldTo struct {
|
||||
encoder *structFieldEncoder
|
||||
toName string
|
||||
}
|
||||
|
||||
func (encoder *structEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if !stream.incrementDepth() {
|
||||
return
|
||||
}
|
||||
isNotFirst := false
|
||||
for _, field := range encoder.fields {
|
||||
if field.encoder.omitempty && field.encoder.IsEmpty(ptr) {
|
||||
continue
|
||||
}
|
||||
if field.encoder.IsEmbeddedPtrNil(ptr) {
|
||||
continue
|
||||
}
|
||||
if isNotFirst {
|
||||
stream.WriteMore()
|
||||
}
|
||||
stream.WriteObjectField(field.toName)
|
||||
field.encoder.Encode(ptr, stream)
|
||||
isNotFirst = true
|
||||
}
|
||||
stream.WriteObjectEnd()
|
||||
if stream.Error != nil && stream.Error != io.EOF {
|
||||
stream.Error = fmt.Errorf("%v.%s", encoder.typ, stream.Error.Error())
|
||||
}
|
||||
stream.decrementDepth()
|
||||
}
|
||||
|
||||
func (encoder *structEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
type emptyStructEncoder struct {
|
||||
}
|
||||
|
||||
func (encoder *emptyStructEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteEmptyObject()
|
||||
}
|
||||
|
||||
func (encoder *emptyStructEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
@ -0,0 +1,47 @@
|
||||
package stt
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
var pow10 []uint64
|
||||
|
||||
func init() {
|
||||
pow10 = []uint64{1, 10, 100, 1000, 10000, 100000, 1000000}
|
||||
}
|
||||
|
||||
// WriteFloat32 write float32 to stream
|
||||
func (stream *Stream) WriteFloat32(val float32) {
|
||||
if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) {
|
||||
stream.Error = fmt.Errorf("unsupported value: %f", val)
|
||||
return
|
||||
}
|
||||
abs := math.Abs(float64(val))
|
||||
ff := byte('f')
|
||||
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
|
||||
if abs != 0 {
|
||||
if float32(abs) < 1e-6 || float32(abs) >= 1e21 {
|
||||
ff = 'e'
|
||||
}
|
||||
}
|
||||
stream.buf = strconv.AppendFloat(stream.buf, float64(val), ff, -1, 32)
|
||||
}
|
||||
|
||||
// WriteFloat64 write float64 to stream
|
||||
func (stream *Stream) WriteFloat64(val float64) {
|
||||
if math.IsInf(val, 0) || math.IsNaN(val) {
|
||||
stream.Error = fmt.Errorf("unsupported value: %f", val)
|
||||
return
|
||||
}
|
||||
abs := math.Abs(val)
|
||||
ff := byte('f')
|
||||
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
|
||||
if abs != 0 {
|
||||
if abs < 1e-6 || abs >= 1e21 {
|
||||
ff = 'e'
|
||||
}
|
||||
}
|
||||
stream.buf = strconv.AppendFloat(stream.buf, val, ff, -1, 64)
|
||||
}
|
||||
@ -0,0 +1,190 @@
|
||||
package stt
|
||||
|
||||
var digits []uint32
|
||||
|
||||
func init() {
|
||||
digits = make([]uint32, 1000)
|
||||
for i := uint32(0); i < 1000; i++ {
|
||||
digits[i] = (((i / 100) + '0') << 16) + ((((i / 10) % 10) + '0') << 8) + i%10 + '0'
|
||||
if i < 10 {
|
||||
digits[i] += 2 << 24
|
||||
} else if i < 100 {
|
||||
digits[i] += 1 << 24
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func writeFirstBuf(space []byte, v uint32) []byte {
|
||||
start := v >> 24
|
||||
if start == 0 {
|
||||
space = append(space, byte(v>>16), byte(v>>8))
|
||||
} else if start == 1 {
|
||||
space = append(space, byte(v>>8))
|
||||
}
|
||||
space = append(space, byte(v))
|
||||
return space
|
||||
}
|
||||
|
||||
func writeBuf(buf []byte, v uint32) []byte {
|
||||
return append(buf, byte(v>>16), byte(v>>8), byte(v))
|
||||
}
|
||||
|
||||
// WriteUint8 write uint8 to stream
|
||||
func (stream *Stream) WriteUint8(val uint8) {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
}
|
||||
|
||||
// WriteInt8 write int8 to stream
|
||||
func (stream *Stream) WriteInt8(nval int8) {
|
||||
var val uint8
|
||||
if nval < 0 {
|
||||
val = uint8(-nval)
|
||||
stream.buf = append(stream.buf, '-')
|
||||
} else {
|
||||
val = uint8(nval)
|
||||
}
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
}
|
||||
|
||||
// WriteUint16 write uint16 to stream
|
||||
func (stream *Stream) WriteUint16(val uint16) {
|
||||
q1 := val / 1000
|
||||
if q1 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
return
|
||||
}
|
||||
r1 := val - q1*1000
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
|
||||
// WriteInt16 write int16 to stream
|
||||
func (stream *Stream) WriteInt16(nval int16) {
|
||||
var val uint16
|
||||
if nval < 0 {
|
||||
val = uint16(-nval)
|
||||
stream.buf = append(stream.buf, '-')
|
||||
} else {
|
||||
val = uint16(nval)
|
||||
}
|
||||
stream.WriteUint16(val)
|
||||
}
|
||||
|
||||
// WriteUint32 write uint32 to stream
|
||||
func (stream *Stream) WriteUint32(val uint32) {
|
||||
q1 := val / 1000
|
||||
if q1 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
return
|
||||
}
|
||||
r1 := val - q1*1000
|
||||
q2 := q1 / 1000
|
||||
if q2 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r2 := q1 - q2*1000
|
||||
q3 := q2 / 1000
|
||||
if q3 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q2])
|
||||
} else {
|
||||
r3 := q2 - q3*1000
|
||||
stream.buf = append(stream.buf, byte(q3+'0'))
|
||||
stream.buf = writeBuf(stream.buf, digits[r3])
|
||||
}
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
}
|
||||
|
||||
// WriteInt32 write int32 to stream
|
||||
func (stream *Stream) WriteInt32(nval int32) {
|
||||
var val uint32
|
||||
if nval < 0 {
|
||||
val = uint32(-nval)
|
||||
stream.buf = append(stream.buf, '-')
|
||||
} else {
|
||||
val = uint32(nval)
|
||||
}
|
||||
stream.WriteUint32(val)
|
||||
}
|
||||
|
||||
// WriteUint64 write uint64 to stream
|
||||
func (stream *Stream) WriteUint64(val uint64) {
|
||||
q1 := val / 1000
|
||||
if q1 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
return
|
||||
}
|
||||
r1 := val - q1*1000
|
||||
q2 := q1 / 1000
|
||||
if q2 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r2 := q1 - q2*1000
|
||||
q3 := q2 / 1000
|
||||
if q3 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r3 := q2 - q3*1000
|
||||
q4 := q3 / 1000
|
||||
if q4 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q3])
|
||||
stream.buf = writeBuf(stream.buf, digits[r3])
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r4 := q3 - q4*1000
|
||||
q5 := q4 / 1000
|
||||
if q5 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q4])
|
||||
stream.buf = writeBuf(stream.buf, digits[r4])
|
||||
stream.buf = writeBuf(stream.buf, digits[r3])
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r5 := q4 - q5*1000
|
||||
q6 := q5 / 1000
|
||||
if q6 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q5])
|
||||
} else {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q6])
|
||||
r6 := q5 - q6*1000
|
||||
stream.buf = writeBuf(stream.buf, digits[r6])
|
||||
}
|
||||
stream.buf = writeBuf(stream.buf, digits[r5])
|
||||
stream.buf = writeBuf(stream.buf, digits[r4])
|
||||
stream.buf = writeBuf(stream.buf, digits[r3])
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
}
|
||||
|
||||
// WriteInt64 write int64 to stream
|
||||
func (stream *Stream) WriteInt64(nval int64) {
|
||||
var val uint64
|
||||
if nval < 0 {
|
||||
val = uint64(-nval)
|
||||
stream.buf = append(stream.buf, '-')
|
||||
} else {
|
||||
val = uint64(nval)
|
||||
}
|
||||
stream.WriteUint64(val)
|
||||
}
|
||||
|
||||
// WriteInt write int to stream
|
||||
func (stream *Stream) WriteInt(val int) {
|
||||
stream.WriteInt64(int64(val))
|
||||
}
|
||||
|
||||
// WriteUint write uint to stream
|
||||
func (stream *Stream) WriteUint(val uint) {
|
||||
stream.WriteUint64(uint64(val))
|
||||
}
|
||||
@ -0,0 +1,178 @@
|
||||
package stt
|
||||
|
||||
import "unicode/utf8"
|
||||
|
||||
// safeSet holds the value true if the ASCII character with the given array
|
||||
// position can be represented inside a JSON string without any further
|
||||
// escaping.
|
||||
//
|
||||
// All values are true except for the ASCII control characters (0-31), the
|
||||
// double quote ("), and the backslash character ("\").
|
||||
var safeSet = [utf8.RuneSelf]bool{
|
||||
' ': true,
|
||||
'!': true,
|
||||
'"': false,
|
||||
'#': true,
|
||||
'$': true,
|
||||
'%': true,
|
||||
'&': true,
|
||||
'\'': true,
|
||||
'(': true,
|
||||
')': true,
|
||||
'*': true,
|
||||
'+': true,
|
||||
',': true,
|
||||
'-': true,
|
||||
'.': true,
|
||||
'/': true,
|
||||
'0': true,
|
||||
'1': true,
|
||||
'2': true,
|
||||
'3': true,
|
||||
'4': true,
|
||||
'5': true,
|
||||
'6': true,
|
||||
'7': true,
|
||||
'8': true,
|
||||
'9': true,
|
||||
':': true,
|
||||
';': true,
|
||||
'<': true,
|
||||
'=': true,
|
||||
'>': true,
|
||||
'?': true,
|
||||
'@': true,
|
||||
'A': true,
|
||||
'B': true,
|
||||
'C': true,
|
||||
'D': true,
|
||||
'E': true,
|
||||
'F': true,
|
||||
'G': true,
|
||||
'H': true,
|
||||
'I': true,
|
||||
'J': true,
|
||||
'K': true,
|
||||
'L': true,
|
||||
'M': true,
|
||||
'N': true,
|
||||
'O': true,
|
||||
'P': true,
|
||||
'Q': true,
|
||||
'R': true,
|
||||
'S': true,
|
||||
'T': true,
|
||||
'U': true,
|
||||
'V': true,
|
||||
'W': true,
|
||||
'X': true,
|
||||
'Y': true,
|
||||
'Z': true,
|
||||
'[': true,
|
||||
'\\': true,
|
||||
']': true,
|
||||
'^': true,
|
||||
'_': true,
|
||||
'`': true,
|
||||
'a': true,
|
||||
'b': true,
|
||||
'c': true,
|
||||
'd': true,
|
||||
'e': true,
|
||||
'f': true,
|
||||
'g': true,
|
||||
'h': true,
|
||||
'i': true,
|
||||
'j': true,
|
||||
'k': true,
|
||||
'l': true,
|
||||
'm': true,
|
||||
'n': true,
|
||||
'o': true,
|
||||
'p': true,
|
||||
'q': true,
|
||||
'r': true,
|
||||
's': true,
|
||||
't': true,
|
||||
'u': true,
|
||||
'v': true,
|
||||
'w': true,
|
||||
'x': true,
|
||||
'y': true,
|
||||
'z': true,
|
||||
'{': true,
|
||||
'|': true,
|
||||
'}': true,
|
||||
'~': true,
|
||||
'\u007f': true,
|
||||
}
|
||||
|
||||
var hex = "0123456789abcdef"
|
||||
|
||||
// WriteString write string to stream without html escape
|
||||
func (stream *Stream) WriteString(s string) {
|
||||
valLen := len(s)
|
||||
// write string, the fast path, without utf8 and escape support
|
||||
i := 0
|
||||
for ; i < valLen; i++ {
|
||||
c := s[i]
|
||||
if c > 31 {
|
||||
switch c {
|
||||
case '@':
|
||||
stream.buf = append(stream.buf, '@', 'A')
|
||||
case '/':
|
||||
stream.buf = append(stream.buf, '@', 'S')
|
||||
default:
|
||||
stream.buf = append(stream.buf, c)
|
||||
}
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
if i == valLen {
|
||||
return
|
||||
}
|
||||
writeStringSlowPath(stream, i, s, valLen)
|
||||
}
|
||||
|
||||
func writeStringSlowPath(stream *Stream, i int, s string, valLen int) {
|
||||
start := i
|
||||
// for the remaining parts, we process them char by char
|
||||
for i < valLen {
|
||||
if b := s[i]; b < utf8.RuneSelf {
|
||||
if safeSet[b] {
|
||||
i++
|
||||
continue
|
||||
}
|
||||
if start < i {
|
||||
stream.WriteRaw(s[start:i])
|
||||
}
|
||||
switch b {
|
||||
case '\\', '"':
|
||||
stream.writeBytes('\\', b)
|
||||
case '\n':
|
||||
stream.writeBytes('\\', 'n')
|
||||
case '\r':
|
||||
stream.writeBytes('\\', 'r')
|
||||
case '\t':
|
||||
stream.writeBytes('\\', 't')
|
||||
default:
|
||||
// This encodes bytes < 0x20 except for \t, \n and \r.
|
||||
// If escapeHTML is set, it also escapes <, >, and &
|
||||
// because they can lead to security holes when
|
||||
// user-controlled strings are rendered into JSON
|
||||
// and served to some browsers.
|
||||
stream.WriteRaw(`\u00`)
|
||||
stream.writeBytes(hex[b>>4], hex[b&0xF])
|
||||
}
|
||||
i++
|
||||
start = i
|
||||
continue
|
||||
}
|
||||
i++
|
||||
continue
|
||||
}
|
||||
if start < len(s) {
|
||||
stream.WriteRaw(s[start:])
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,39 @@
|
||||
package stt
|
||||
|
||||
import "bytes"
|
||||
|
||||
func Marshal(v any) ([]byte, error) {
|
||||
return ConfigDefault.Marshal(v)
|
||||
}
|
||||
|
||||
func Unmarshal(data []byte, v any) error {
|
||||
return ConfigDefault.Unmarshal(data, v)
|
||||
}
|
||||
|
||||
func encryptBytes(c []byte, num int) []byte {
|
||||
for i := 0; i < num; i++ {
|
||||
c = bytes.ReplaceAll(c, []byte{'@'}, []byte("@A"))
|
||||
c = bytes.ReplaceAll(c, []byte{'/'}, []byte("@S"))
|
||||
}
|
||||
|
||||
return c
|
||||
}
|
||||
|
||||
func decryptBytes(c []byte, num int) []byte {
|
||||
if num == -1 {
|
||||
for {
|
||||
if bytes.Contains(c, []byte("@S")) || bytes.Contains(c, []byte("@A")) {
|
||||
c = bytes.ReplaceAll(c, []byte("@S"), []byte{'/'})
|
||||
c = bytes.ReplaceAll(c, []byte("@A"), []byte{'@'})
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
} else {
|
||||
for i := 0; i < num; i++ {
|
||||
c = bytes.ReplaceAll(c, []byte("@S"), []byte{'/'})
|
||||
c = bytes.ReplaceAll(c, []byte("@A"), []byte{'@'})
|
||||
}
|
||||
}
|
||||
return c
|
||||
}
|
||||
Loading…
Reference in New Issue