[chore] update go dependencies (#4304)

- github.com/KimMachineGun/automemlimit v0.7.2 => v0.7.3
- github.com/gin-contrib/cors v1.7.5 => v1.7.6
- github.com/minio/minio-go/v7 v7.0.92 => v7.0.94
- github.com/spf13/cast v1.8.0 => v1.9.2
- github.com/uptrace/bun{,/*} v1.2.11 => v1.2.14
- golang.org/x/image v0.27.0 => v0.28.0
- golang.org/x/net v0.40.0 => v0.41.0
- code.superseriousbusiness.org/go-swagger v0.31.0-gts-go1.23-fix => v0.32.3-gts-go1.23-fix

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4304
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>

1 files changed, 8339 insertions, 0 deletions

diff --git a/vendor/github.com/ugorji/go/codec/json.mono.generated.go b/vendor/github.com/ugorji/go/codec/json.mono.generated.go
new file mode 100644
index 000000000..12da25c30
--- /dev/null
+++ b/vendor/github.com/ugorji/go/codec/json.mono.generated.go
@@ -0,0 +1,8339 @@
+//go:build !notmono && !codec.notmono 
+
+// Copyright (c) 2012-2020 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+package codec
+
+import (
+	"encoding"
+
+	"encoding/base64"
+	"io"
+	"math"
+	"reflect"
+	"slices"
+	"sort"
+	"strconv"
+	"sync"
+	"time"
+	"unicode"
+	"unicode/utf16"
+	"unicode/utf8"
+)
+
+type helperEncDriverJsonBytes struct{}
+type encFnJsonBytes struct {
+	i  encFnInfo
+	fe func(*encoderJsonBytes, *encFnInfo, reflect.Value)
+}
+type encRtidFnJsonBytes struct {
+	rtid uintptr
+	fn   *encFnJsonBytes
+}
+type encoderJsonBytes struct {
+	dh helperEncDriverJsonBytes
+	fp *fastpathEsJsonBytes
+	e  jsonEncDriverBytes
+	encoderBase
+}
+type helperDecDriverJsonBytes struct{}
+type decFnJsonBytes struct {
+	i  decFnInfo
+	fd func(*decoderJsonBytes, *decFnInfo, reflect.Value)
+}
+type decRtidFnJsonBytes struct {
+	rtid uintptr
+	fn   *decFnJsonBytes
+}
+type decoderJsonBytes struct {
+	dh helperDecDriverJsonBytes
+	fp *fastpathDsJsonBytes
+	d  jsonDecDriverBytes
+	decoderBase
+}
+type jsonEncDriverBytes struct {
+	noBuiltInTypes
+	h *JsonHandle
+	e *encoderBase
+	s *bitset256
+
+	w bytesEncAppender
+
+	enc encoderI
+
+	timeFmtLayout string
+	byteFmter     jsonBytesFmter
+
+	timeFmt  jsonTimeFmt
+	bytesFmt jsonBytesFmt
+
+	di int8
+	d  bool
+	dl uint16
+
+	ks bool
+	is byte
+
+	typical bool
+
+	rawext bool
+
+	b [48]byte
+}
+type jsonDecDriverBytes struct {
+	noBuiltInTypes
+	decDriverNoopNumberHelper
+	h *JsonHandle
+	d *decoderBase
+
+	r bytesDecReader
+
+	buf []byte
+
+	tok  uint8
+	_    bool
+	_    byte
+	bstr [4]byte
+
+	jsonHandleOpts
+
+	dec decoderI
+}
+
+func (e *encoderJsonBytes) rawExt(_ *encFnInfo, rv reflect.Value) {
+	if re := rv2i(rv).(*RawExt); re == nil {
+		e.e.EncodeNil()
+	} else {
+		e.e.EncodeRawExt(re)
+	}
+}
+
+func (e *encoderJsonBytes) ext(f *encFnInfo, rv reflect.Value) {
+	e.e.EncodeExt(rv2i(rv), f.ti.rt, f.xfTag, f.xfFn)
+}
+
+func (e *encoderJsonBytes) selferMarshal(_ *encFnInfo, rv reflect.Value) {
+	rv2i(rv).(Selfer).CodecEncodeSelf(&Encoder{e})
+}
+
+func (e *encoderJsonBytes) binaryMarshal(_ *encFnInfo, rv reflect.Value) {
+	bs, fnerr := rv2i(rv).(encoding.BinaryMarshaler).MarshalBinary()
+	e.marshalRaw(bs, fnerr)
+}
+
+func (e *encoderJsonBytes) textMarshal(_ *encFnInfo, rv reflect.Value) {
+	bs, fnerr := rv2i(rv).(encoding.TextMarshaler).MarshalText()
+	e.marshalUtf8(bs, fnerr)
+}
+
+func (e *encoderJsonBytes) jsonMarshal(_ *encFnInfo, rv reflect.Value) {
+	bs, fnerr := rv2i(rv).(jsonMarshaler).MarshalJSON()
+	e.marshalAsis(bs, fnerr)
+}
+
+func (e *encoderJsonBytes) raw(_ *encFnInfo, rv reflect.Value) {
+	e.rawBytes(rv2i(rv).(Raw))
+}
+
+func (e *encoderJsonBytes) encodeComplex64(v complex64) {
+	if imag(v) != 0 {
+		halt.errorf("cannot encode complex number: %v, with imaginary values: %v", any(v), any(imag(v)))
+	}
+	e.e.EncodeFloat32(real(v))
+}
+
+func (e *encoderJsonBytes) encodeComplex128(v complex128) {
+	if imag(v) != 0 {
+		halt.errorf("cannot encode complex number: %v, with imaginary values: %v", any(v), any(imag(v)))
+	}
+	e.e.EncodeFloat64(real(v))
+}
+
+func (e *encoderJsonBytes) kBool(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeBool(rvGetBool(rv))
+}
+
+func (e *encoderJsonBytes) kTime(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeTime(rvGetTime(rv))
+}
+
+func (e *encoderJsonBytes) kString(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeString(rvGetString(rv))
+}
+
+func (e *encoderJsonBytes) kFloat32(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeFloat32(rvGetFloat32(rv))
+}
+
+func (e *encoderJsonBytes) kFloat64(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeFloat64(rvGetFloat64(rv))
+}
+
+func (e *encoderJsonBytes) kComplex64(_ *encFnInfo, rv reflect.Value) {
+	e.encodeComplex64(rvGetComplex64(rv))
+}
+
+func (e *encoderJsonBytes) kComplex128(_ *encFnInfo, rv reflect.Value) {
+	e.encodeComplex128(rvGetComplex128(rv))
+}
+
+func (e *encoderJsonBytes) kInt(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt(rv)))
+}
+
+func (e *encoderJsonBytes) kInt8(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt8(rv)))
+}
+
+func (e *encoderJsonBytes) kInt16(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt16(rv)))
+}
+
+func (e *encoderJsonBytes) kInt32(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt32(rv)))
+}
+
+func (e *encoderJsonBytes) kInt64(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt64(rv)))
+}
+
+func (e *encoderJsonBytes) kUint(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint(rv)))
+}
+
+func (e *encoderJsonBytes) kUint8(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint8(rv)))
+}
+
+func (e *encoderJsonBytes) kUint16(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint16(rv)))
+}
+
+func (e *encoderJsonBytes) kUint32(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint32(rv)))
+}
+
+func (e *encoderJsonBytes) kUint64(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint64(rv)))
+}
+
+func (e *encoderJsonBytes) kUintptr(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUintptr(rv)))
+}
+
+func (e *encoderJsonBytes) kSeqFn(rt reflect.Type) (fn *encFnJsonBytes) {
+
+	if rt = baseRT(rt); rt.Kind() != reflect.Interface {
+		fn = e.fn(rt)
+	}
+	return
+}
+
+func (e *encoderJsonBytes) kArrayWMbs(rv reflect.Value, ti *typeInfo, isSlice bool) {
+	var l int
+	if isSlice {
+		l = rvLenSlice(rv)
+	} else {
+		l = rv.Len()
+	}
+	if l == 0 {
+		e.e.WriteMapEmpty()
+		return
+	}
+	e.haltOnMbsOddLen(l)
+	e.mapStart(l >> 1)
+
+	var fn *encFnJsonBytes
+	builtin := ti.tielem.flagEncBuiltin
+	if !builtin {
+		fn = e.kSeqFn(ti.elem)
+	}
+
+	j := 0
+	e.c = containerMapKey
+	e.e.WriteMapElemKey(true)
+	for {
+		rvv := rvArrayIndex(rv, j, ti, isSlice)
+		if builtin {
+			e.encodeIB(rv2i(baseRVRV(rvv)))
+		} else {
+			e.encodeValue(rvv, fn)
+		}
+		j++
+		if j == l {
+			break
+		}
+		if j&1 == 0 {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(false)
+		} else {
+			e.mapElemValue()
+		}
+	}
+	e.c = 0
+	e.e.WriteMapEnd()
+
+}
+
+func (e *encoderJsonBytes) kArrayW(rv reflect.Value, ti *typeInfo, isSlice bool) {
+	var l int
+	if isSlice {
+		l = rvLenSlice(rv)
+	} else {
+		l = rv.Len()
+	}
+	if l <= 0 {
+		e.e.WriteArrayEmpty()
+		return
+	}
+	e.arrayStart(l)
+
+	var fn *encFnJsonBytes
+	if !ti.tielem.flagEncBuiltin {
+		fn = e.kSeqFn(ti.elem)
+	}
+
+	j := 0
+	e.c = containerArrayElem
+	e.e.WriteArrayElem(true)
+	builtin := ti.tielem.flagEncBuiltin
+	for {
+		rvv := rvArrayIndex(rv, j, ti, isSlice)
+		if builtin {
+			e.encodeIB(rv2i(baseRVRV(rvv)))
+		} else {
+			e.encodeValue(rvv, fn)
+		}
+		j++
+		if j == l {
+			break
+		}
+		e.c = containerArrayElem
+		e.e.WriteArrayElem(false)
+	}
+
+	e.c = 0
+	e.e.WriteArrayEnd()
+}
+
+func (e *encoderJsonBytes) kChan(f *encFnInfo, rv reflect.Value) {
+	if f.ti.chandir&uint8(reflect.RecvDir) == 0 {
+		halt.errorStr("send-only channel cannot be encoded")
+	}
+	if !f.ti.mbs && uint8TypId == rt2id(f.ti.elem) {
+		e.kSliceBytesChan(rv)
+		return
+	}
+	rtslice := reflect.SliceOf(f.ti.elem)
+	rv = chanToSlice(rv, rtslice, e.h.ChanRecvTimeout)
+	ti := e.h.getTypeInfo(rt2id(rtslice), rtslice)
+	if f.ti.mbs {
+		e.kArrayWMbs(rv, ti, true)
+	} else {
+		e.kArrayW(rv, ti, true)
+	}
+}
+
+func (e *encoderJsonBytes) kSlice(f *encFnInfo, rv reflect.Value) {
+	if f.ti.mbs {
+		e.kArrayWMbs(rv, f.ti, true)
+	} else if f.ti.rtid == uint8SliceTypId || uint8TypId == rt2id(f.ti.elem) {
+
+		e.e.EncodeBytes(rvGetBytes(rv))
+	} else {
+		e.kArrayW(rv, f.ti, true)
+	}
+}
+
+func (e *encoderJsonBytes) kArray(f *encFnInfo, rv reflect.Value) {
+	if f.ti.mbs {
+		e.kArrayWMbs(rv, f.ti, false)
+	} else if handleBytesWithinKArray && uint8TypId == rt2id(f.ti.elem) {
+		e.e.EncodeStringBytesRaw(rvGetArrayBytes(rv, nil))
+	} else {
+		e.kArrayW(rv, f.ti, false)
+	}
+}
+
+func (e *encoderJsonBytes) kSliceBytesChan(rv reflect.Value) {
+
+	bs0 := e.blist.peek(32, true)
+	bs := bs0
+
+	irv := rv2i(rv)
+	ch, ok := irv.(<-chan byte)
+	if !ok {
+		ch = irv.(chan byte)
+	}
+
+L1:
+	switch timeout := e.h.ChanRecvTimeout; {
+	case timeout == 0:
+		for {
+			select {
+			case b := <-ch:
+				bs = append(bs, b)
+			default:
+				break L1
+			}
+		}
+	case timeout > 0:
+		tt := time.NewTimer(timeout)
+		for {
+			select {
+			case b := <-ch:
+				bs = append(bs, b)
+			case <-tt.C:
+
+				break L1
+			}
+		}
+	default:
+		for b := range ch {
+			bs = append(bs, b)
+		}
+	}
+
+	e.e.EncodeBytes(bs)
+	e.blist.put(bs)
+	if !byteSliceSameData(bs0, bs) {
+		e.blist.put(bs0)
+	}
+}
+
+func (e *encoderJsonBytes) kStructFieldKey(keyType valueType, encName string) {
+
+	if keyType == valueTypeString {
+		e.e.EncodeString(encName)
+	} else if keyType == valueTypeInt {
+		e.e.EncodeInt(must.Int(strconv.ParseInt(encName, 10, 64)))
+	} else if keyType == valueTypeUint {
+		e.e.EncodeUint(must.Uint(strconv.ParseUint(encName, 10, 64)))
+	} else if keyType == valueTypeFloat {
+		e.e.EncodeFloat64(must.Float(strconv.ParseFloat(encName, 64)))
+	} else {
+		halt.errorStr2("invalid struct key type: ", keyType.String())
+	}
+
+}
+
+func (e *encoderJsonBytes) kStructSimple(f *encFnInfo, rv reflect.Value) {
+	_ = e.e
+	tisfi := f.ti.sfi.source()
+
+	chkCirRef := e.h.CheckCircularRef
+	var si *structFieldInfo
+	var j int
+
+	if f.ti.toArray || e.h.StructToArray {
+		if len(tisfi) == 0 {
+			e.e.WriteArrayEmpty()
+			return
+		}
+		e.arrayStart(len(tisfi))
+		for j, si = range tisfi {
+			e.c = containerArrayElem
+			e.e.WriteArrayElem(j == 0)
+			if si.encBuiltin {
+				e.encodeIB(rv2i(si.fieldNoAlloc(rv, true)))
+			} else {
+				e.encodeValue(si.fieldNoAlloc(rv, !chkCirRef), nil)
+			}
+		}
+		e.c = 0
+		e.e.WriteArrayEnd()
+	} else {
+		if len(tisfi) == 0 {
+			e.e.WriteMapEmpty()
+			return
+		}
+		if e.h.Canonical {
+			tisfi = f.ti.sfi.sorted()
+		}
+		e.mapStart(len(tisfi))
+		for j, si = range tisfi {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(j == 0)
+			e.e.EncodeStringNoEscape4Json(si.encName)
+			e.mapElemValue()
+			if si.encBuiltin {
+				e.encodeIB(rv2i(si.fieldNoAlloc(rv, true)))
+			} else {
+				e.encodeValue(si.fieldNoAlloc(rv, !chkCirRef), nil)
+			}
+		}
+		e.c = 0
+		e.e.WriteMapEnd()
+	}
+}
+
+func (e *encoderJsonBytes) kStruct(f *encFnInfo, rv reflect.Value) {
+	_ = e.e
+	ti := f.ti
+	toMap := !(ti.toArray || e.h.StructToArray)
+	var mf map[string]interface{}
+	if ti.flagMissingFielder {
+		toMap = true
+		mf = rv2i(rv).(MissingFielder).CodecMissingFields()
+	} else if ti.flagMissingFielderPtr {
+		toMap = true
+		if rv.CanAddr() {
+			mf = rv2i(rvAddr(rv, ti.ptr)).(MissingFielder).CodecMissingFields()
+		} else {
+			mf = rv2i(e.addrRV(rv, ti.rt, ti.ptr)).(MissingFielder).CodecMissingFields()
+		}
+	}
+	newlen := len(mf)
+	tisfi := ti.sfi.source()
+	newlen += len(tisfi)
+
+	var fkvs = e.slist.get(newlen)[:newlen]
+
+	recur := e.h.RecursiveEmptyCheck
+	chkCirRef := e.h.CheckCircularRef
+
+	var xlen int
+
+	var kv sfiRv
+	var j int
+	var sf encStructFieldObj
+	if toMap {
+		newlen = 0
+		if e.h.Canonical {
+			tisfi = f.ti.sfi.sorted()
+		}
+		for _, si := range tisfi {
+
+			if si.omitEmpty {
+				kv.r = si.fieldNoAlloc(rv, false)
+				if isEmptyValue(kv.r, e.h.TypeInfos, recur) {
+					continue
+				}
+			} else {
+				kv.r = si.fieldNoAlloc(rv, si.encBuiltin || !chkCirRef)
+			}
+			kv.v = si
+			fkvs[newlen] = kv
+			newlen++
+		}
+
+		var mf2s []stringIntf
+		if len(mf) != 0 {
+			mf2s = make([]stringIntf, 0, len(mf))
+			for k, v := range mf {
+				if k == "" {
+					continue
+				}
+				if ti.infoFieldOmitempty && isEmptyValue(reflect.ValueOf(v), e.h.TypeInfos, recur) {
+					continue
+				}
+				mf2s = append(mf2s, stringIntf{k, v})
+			}
+		}
+
+		xlen = newlen + len(mf2s)
+		if xlen == 0 {
+			e.e.WriteMapEmpty()
+			goto END
+		}
+
+		e.mapStart(xlen)
+
+		if len(mf2s) != 0 && e.h.Canonical {
+			mf2w := make([]encStructFieldObj, newlen+len(mf2s))
+			for j = 0; j < newlen; j++ {
+				kv = fkvs[j]
+				mf2w[j] = encStructFieldObj{kv.v.encName, kv.r, nil, true,
+					!kv.v.encNameEscape4Json, kv.v.encBuiltin}
+			}
+			for _, v := range mf2s {
+				mf2w[j] = encStructFieldObj{v.v, reflect.Value{}, v.i, false, false, false}
+				j++
+			}
+			sort.Sort((encStructFieldObjSlice)(mf2w))
+			for j, sf = range mf2w {
+				e.c = containerMapKey
+				e.e.WriteMapElemKey(j == 0)
+				if ti.keyType == valueTypeString && sf.noEsc4json {
+					e.e.EncodeStringNoEscape4Json(sf.key)
+				} else {
+					e.kStructFieldKey(ti.keyType, sf.key)
+				}
+				e.mapElemValue()
+				if sf.isRv {
+					if sf.builtin {
+						e.encodeIB(rv2i(baseRVRV(sf.rv)))
+					} else {
+						e.encodeValue(sf.rv, nil)
+					}
+				} else {
+					if !e.encodeBuiltin(sf.intf) {
+						e.encodeR(reflect.ValueOf(sf.intf))
+					}
+
+				}
+			}
+		} else {
+			keytyp := ti.keyType
+			for j = 0; j < newlen; j++ {
+				kv = fkvs[j]
+				e.c = containerMapKey
+				e.e.WriteMapElemKey(j == 0)
+				if ti.keyType == valueTypeString && !kv.v.encNameEscape4Json {
+					e.e.EncodeStringNoEscape4Json(kv.v.encName)
+				} else {
+					e.kStructFieldKey(keytyp, kv.v.encName)
+				}
+				e.mapElemValue()
+				if kv.v.encBuiltin {
+					e.encodeIB(rv2i(baseRVRV(kv.r)))
+				} else {
+					e.encodeValue(kv.r, nil)
+				}
+			}
+			for _, v := range mf2s {
+				e.c = containerMapKey
+				e.e.WriteMapElemKey(j == 0)
+				e.kStructFieldKey(keytyp, v.v)
+				e.mapElemValue()
+				if !e.encodeBuiltin(v.i) {
+					e.encodeR(reflect.ValueOf(v.i))
+				}
+
+				j++
+			}
+		}
+
+		e.c = 0
+		e.e.WriteMapEnd()
+	} else {
+		newlen = len(tisfi)
+		for i, si := range tisfi {
+
+			if si.omitEmpty {
+
+				kv.r = si.fieldNoAlloc(rv, false)
+				if isEmptyContainerValue(kv.r, e.h.TypeInfos, recur) {
+					kv.r = reflect.Value{}
+				}
+			} else {
+				kv.r = si.fieldNoAlloc(rv, si.encBuiltin || !chkCirRef)
+			}
+			kv.v = si
+			fkvs[i] = kv
+		}
+
+		if newlen == 0 {
+			e.e.WriteArrayEmpty()
+			goto END
+		}
+
+		e.arrayStart(newlen)
+		for j = 0; j < newlen; j++ {
+			e.c = containerArrayElem
+			e.e.WriteArrayElem(j == 0)
+			kv = fkvs[j]
+			if !kv.r.IsValid() {
+				e.e.EncodeNil()
+			} else if kv.v.encBuiltin {
+				e.encodeIB(rv2i(baseRVRV(kv.r)))
+			} else {
+				e.encodeValue(kv.r, nil)
+			}
+		}
+		e.c = 0
+		e.e.WriteArrayEnd()
+	}
+
+END:
+
+	e.slist.put(fkvs)
+}
+
+func (e *encoderJsonBytes) kMap(f *encFnInfo, rv reflect.Value) {
+	_ = e.e
+	l := rvLenMap(rv)
+	if l == 0 {
+		e.e.WriteMapEmpty()
+		return
+	}
+	e.mapStart(l)
+
+	var keyFn, valFn *encFnJsonBytes
+
+	ktypeKind := reflect.Kind(f.ti.keykind)
+	vtypeKind := reflect.Kind(f.ti.elemkind)
+
+	rtval := f.ti.elem
+	rtvalkind := vtypeKind
+	for rtvalkind == reflect.Ptr {
+		rtval = rtval.Elem()
+		rtvalkind = rtval.Kind()
+	}
+	if rtvalkind != reflect.Interface {
+		valFn = e.fn(rtval)
+	}
+
+	var rvv = mapAddrLoopvarRV(f.ti.elem, vtypeKind)
+
+	rtkey := f.ti.key
+	var keyTypeIsString = stringTypId == rt2id(rtkey)
+	if keyTypeIsString {
+		keyFn = e.fn(rtkey)
+	} else {
+		for rtkey.Kind() == reflect.Ptr {
+			rtkey = rtkey.Elem()
+		}
+		if rtkey.Kind() != reflect.Interface {
+			keyFn = e.fn(rtkey)
+		}
+	}
+
+	if e.h.Canonical {
+		e.kMapCanonical(f.ti, rv, rvv, keyFn, valFn)
+		e.c = 0
+		e.e.WriteMapEnd()
+		return
+	}
+
+	var rvk = mapAddrLoopvarRV(f.ti.key, ktypeKind)
+
+	var it mapIter
+	mapRange(&it, rv, rvk, rvv, true)
+
+	kbuiltin := f.ti.tikey.flagEncBuiltin
+	vbuiltin := f.ti.tielem.flagEncBuiltin
+	for j := 0; it.Next(); j++ {
+		rv = it.Key()
+		e.c = containerMapKey
+		e.e.WriteMapElemKey(j == 0)
+		if keyTypeIsString {
+			e.e.EncodeString(rvGetString(rv))
+		} else if kbuiltin {
+			e.encodeIB(rv2i(baseRVRV(rv)))
+		} else {
+			e.encodeValue(rv, keyFn)
+		}
+		e.mapElemValue()
+		rv = it.Value()
+		if vbuiltin {
+			e.encodeIB(rv2i(baseRVRV(rv)))
+		} else {
+			e.encodeValue(it.Value(), valFn)
+		}
+	}
+	it.Done()
+
+	e.c = 0
+	e.e.WriteMapEnd()
+}
+
+func (e *encoderJsonBytes) kMapCanonical(ti *typeInfo, rv, rvv reflect.Value, keyFn, valFn *encFnJsonBytes) {
+	_ = e.e
+
+	rtkey := ti.key
+	rtkeydecl := rtkey.PkgPath() == "" && rtkey.Name() != ""
+
+	mks := rv.MapKeys()
+	rtkeyKind := rtkey.Kind()
+	mparams := getMapReqParams(ti)
+
+	switch rtkeyKind {
+	case reflect.Bool:
+
+		if len(mks) == 2 && mks[0].Bool() {
+			mks[0], mks[1] = mks[1], mks[0]
+		}
+		for i := range mks {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeBool(mks[i].Bool())
+			} else {
+				e.encodeValueNonNil(mks[i], keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mks[i], rvv, mparams), valFn)
+		}
+	case reflect.String:
+		mksv := make([]orderedRv[string], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = rvGetString(k)
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeString(mksv[i].v)
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint, reflect.Uintptr:
+		mksv := make([]orderedRv[uint64], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = k.Uint()
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeUint(mksv[i].v)
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
+		mksv := make([]orderedRv[int64], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = k.Int()
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeInt(mksv[i].v)
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	case reflect.Float32:
+		mksv := make([]orderedRv[float64], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = k.Float()
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeFloat32(float32(mksv[i].v))
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	case reflect.Float64:
+		mksv := make([]orderedRv[float64], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = k.Float()
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeFloat64(mksv[i].v)
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	default:
+		if rtkey == timeTyp {
+			mksv := make([]timeRv, len(mks))
+			for i, k := range mks {
+				v := &mksv[i]
+				v.r = k
+				v.v = rv2i(k).(time.Time)
+			}
+			slices.SortFunc(mksv, cmpTimeRv)
+			for i := range mksv {
+				e.c = containerMapKey
+				e.e.WriteMapElemKey(i == 0)
+				e.e.EncodeTime(mksv[i].v)
+				e.mapElemValue()
+				e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+			}
+			break
+		}
+
+		bs0 := e.blist.get(len(mks) * 16)
+		mksv := bs0
+		mksbv := make([]bytesRv, len(mks))
+
+		sideEncode(e.hh, &e.h.sideEncPool, func(se encoderI) {
+			se.ResetBytes(&mksv)
+			for i, k := range mks {
+				v := &mksbv[i]
+				l := len(mksv)
+				se.setContainerState(containerMapKey)
+				se.encodeR(baseRVRV(k))
+				se.atEndOfEncode()
+				se.writerEnd()
+				v.r = k
+				v.v = mksv[l:]
+			}
+		})
+
+		slices.SortFunc(mksbv, cmpBytesRv)
+		for j := range mksbv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(j == 0)
+			e.e.writeBytesAsis(mksbv[j].v)
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksbv[j].r, rvv, mparams), valFn)
+		}
+		e.blist.put(mksv)
+		if !byteSliceSameData(bs0, mksv) {
+			e.blist.put(bs0)
+		}
+	}
+}
+
+func (e *encoderJsonBytes) init(h Handle) {
+	initHandle(h)
+	callMake(&e.e)
+	e.hh = h
+	e.h = h.getBasicHandle()
+
+	e.err = errEncoderNotInitialized
+
+	e.fp = e.e.init(h, &e.encoderBase, e).(*fastpathEsJsonBytes)
+
+	if e.bytes {
+		e.rtidFn = &e.h.rtidFnsEncBytes
+		e.rtidFnNoExt = &e.h.rtidFnsEncNoExtBytes
+	} else {
+		e.rtidFn = &e.h.rtidFnsEncIO
+		e.rtidFnNoExt = &e.h.rtidFnsEncNoExtIO
+	}
+
+	e.reset()
+}
+
+func (e *encoderJsonBytes) reset() {
+	e.e.reset()
+	if e.ci != nil {
+		e.ci = e.ci[:0]
+	}
+	e.c = 0
+	e.calls = 0
+	e.seq = 0
+	e.err = nil
+}
+
+func (e *encoderJsonBytes) Encode(v interface{}) (err error) {
+
+	defer panicValToErr(e, callRecoverSentinel, &e.err, &err, debugging)
+	e.mustEncode(v)
+	return
+}
+
+func (e *encoderJsonBytes) MustEncode(v interface{}) {
+	defer panicValToErr(e, callRecoverSentinel, &e.err, nil, true)
+	e.mustEncode(v)
+	return
+}
+
+func (e *encoderJsonBytes) mustEncode(v interface{}) {
+	halt.onerror(e.err)
+	if e.hh == nil {
+		halt.onerror(errNoFormatHandle)
+	}
+
+	e.calls++
+	if !e.encodeBuiltin(v) {
+		e.encodeR(reflect.ValueOf(v))
+	}
+
+	e.calls--
+	if e.calls == 0 {
+		e.e.atEndOfEncode()
+		e.e.writerEnd()
+	}
+}
+
+func (e *encoderJsonBytes) encodeI(iv interface{}) {
+	if !e.encodeBuiltin(iv) {
+		e.encodeR(reflect.ValueOf(iv))
+	}
+}
+
+func (e *encoderJsonBytes) encodeIB(iv interface{}) {
+	if !e.encodeBuiltin(iv) {
+
+		halt.errorStr("[should not happen] invalid type passed to encodeBuiltin")
+	}
+}
+
+func (e *encoderJsonBytes) encodeR(base reflect.Value) {
+	e.encodeValue(base, nil)
+}
+
+func (e *encoderJsonBytes) encodeBuiltin(iv interface{}) (ok bool) {
+	ok = true
+	switch v := iv.(type) {
+	case nil:
+		e.e.EncodeNil()
+
+	case Raw:
+		e.rawBytes(v)
+	case string:
+		e.e.EncodeString(v)
+	case bool:
+		e.e.EncodeBool(v)
+	case int:
+		e.e.EncodeInt(int64(v))
+	case int8:
+		e.e.EncodeInt(int64(v))
+	case int16:
+		e.e.EncodeInt(int64(v))
+	case int32:
+		e.e.EncodeInt(int64(v))
+	case int64:
+		e.e.EncodeInt(v)
+	case uint:
+		e.e.EncodeUint(uint64(v))
+	case uint8:
+		e.e.EncodeUint(uint64(v))
+	case uint16:
+		e.e.EncodeUint(uint64(v))
+	case uint32:
+		e.e.EncodeUint(uint64(v))
+	case uint64:
+		e.e.EncodeUint(v)
+	case uintptr:
+		e.e.EncodeUint(uint64(v))
+	case float32:
+		e.e.EncodeFloat32(v)
+	case float64:
+		e.e.EncodeFloat64(v)
+	case complex64:
+		e.encodeComplex64(v)
+	case complex128:
+		e.encodeComplex128(v)
+	case time.Time:
+		e.e.EncodeTime(v)
+	case []byte:
+		e.e.EncodeBytes(v)
+	default:
+
+		ok = !skipFastpathTypeSwitchInDirectCall && e.dh.fastpathEncodeTypeSwitch(iv, e)
+	}
+	return
+}
+
+func (e *encoderJsonBytes) encodeValue(rv reflect.Value, fn *encFnJsonBytes) {
+
+	var ciPushes int
+
+	var rvp reflect.Value
+	var rvpValid bool
+
+RV:
+	switch rv.Kind() {
+	case reflect.Ptr:
+		if rvIsNil(rv) {
+			e.e.EncodeNil()
+			goto END
+		}
+		rvpValid = true
+		rvp = rv
+		rv = rv.Elem()
+
+		if e.h.CheckCircularRef && e.ci.canPushElemKind(rv.Kind()) {
+			e.ci.push(rv2i(rvp))
+			ciPushes++
+		}
+		goto RV
+	case reflect.Interface:
+		if rvIsNil(rv) {
+			e.e.EncodeNil()
+			goto END
+		}
+		rvpValid = false
+		rvp = reflect.Value{}
+		rv = rv.Elem()
+		fn = nil
+		goto RV
+	case reflect.Map:
+		if rvIsNil(rv) {
+			if e.h.NilCollectionToZeroLength {
+				e.e.WriteMapEmpty()
+			} else {
+				e.e.EncodeNil()
+			}
+			goto END
+		}
+	case reflect.Slice, reflect.Chan:
+		if rvIsNil(rv) {
+			if e.h.NilCollectionToZeroLength {
+				e.e.WriteArrayEmpty()
+			} else {
+				e.e.EncodeNil()
+			}
+			goto END
+		}
+	case reflect.Invalid, reflect.Func:
+		e.e.EncodeNil()
+		goto END
+	}
+
+	if fn == nil {
+		fn = e.fn(rv.Type())
+	}
+
+	if !fn.i.addrE {
+
+	} else if rvpValid {
+		rv = rvp
+	} else if rv.CanAddr() {
+		rv = rvAddr(rv, fn.i.ti.ptr)
+	} else {
+		rv = e.addrRV(rv, fn.i.ti.rt, fn.i.ti.ptr)
+	}
+	fn.fe(e, &fn.i, rv)
+
+END:
+	if ciPushes > 0 {
+		e.ci.pop(ciPushes)
+	}
+}
+
+func (e *encoderJsonBytes) encodeValueNonNil(rv reflect.Value, fn *encFnJsonBytes) {
+
+	if fn.i.addrE {
+		if rv.CanAddr() {
+			rv = rvAddr(rv, fn.i.ti.ptr)
+		} else {
+			rv = e.addrRV(rv, fn.i.ti.rt, fn.i.ti.ptr)
+		}
+	}
+	fn.fe(e, &fn.i, rv)
+}
+
+func (e *encoderJsonBytes) encodeAs(v interface{}, t reflect.Type, ext bool) {
+	if ext {
+		e.encodeValue(baseRV(v), e.fn(t))
+	} else {
+		e.encodeValue(baseRV(v), e.fnNoExt(t))
+	}
+}
+
+func (e *encoderJsonBytes) marshalUtf8(bs []byte, fnerr error) {
+	halt.onerror(fnerr)
+	if bs == nil {
+		e.e.EncodeNil()
+	} else {
+		e.e.EncodeString(stringView(bs))
+	}
+}
+
+func (e *encoderJsonBytes) marshalAsis(bs []byte, fnerr error) {
+	halt.onerror(fnerr)
+	if bs == nil {
+		e.e.EncodeNil()
+	} else {
+		e.e.writeBytesAsis(bs)
+	}
+}
+
+func (e *encoderJsonBytes) marshalRaw(bs []byte, fnerr error) {
+	halt.onerror(fnerr)
+	e.e.EncodeBytes(bs)
+}
+
+func (e *encoderJsonBytes) rawBytes(vv Raw) {
+	v := []byte(vv)
+	if !e.h.Raw {
+		halt.errorBytes("Raw values cannot be encoded: ", v)
+	}
+	e.e.writeBytesAsis(v)
+}
+
+func (e *encoderJsonBytes) fn(t reflect.Type) *encFnJsonBytes {
+	return e.dh.encFnViaBH(t, e.rtidFn, e.h, e.fp, false)
+}
+
+func (e *encoderJsonBytes) fnNoExt(t reflect.Type) *encFnJsonBytes {
+	return e.dh.encFnViaBH(t, e.rtidFnNoExt, e.h, e.fp, true)
+}
+
+func (e *encoderJsonBytes) mapStart(length int) {
+	e.e.WriteMapStart(length)
+	e.c = containerMapStart
+}
+
+func (e *encoderJsonBytes) mapElemValue() {
+	e.e.WriteMapElemValue()
+	e.c = containerMapValue
+}
+
+func (e *encoderJsonBytes) arrayStart(length int) {
+	e.e.WriteArrayStart(length)
+	e.c = containerArrayStart
+}
+
+func (e *encoderJsonBytes) writerEnd() {
+	e.e.writerEnd()
+}
+
+func (e *encoderJsonBytes) atEndOfEncode() {
+	e.e.atEndOfEncode()
+}
+
+func (e *encoderJsonBytes) Reset(w io.Writer) {
+	if e.bytes {
+		halt.onerror(errEncNoResetBytesWithWriter)
+	}
+	e.reset()
+	if w == nil {
+		w = io.Discard
+	}
+	e.e.resetOutIO(w)
+}
+
+func (e *encoderJsonBytes) ResetBytes(out *[]byte) {
+	if !e.bytes {
+		halt.onerror(errEncNoResetWriterWithBytes)
+	}
+	e.resetBytes(out)
+}
+
+func (e *encoderJsonBytes) resetBytes(out *[]byte) {
+	e.reset()
+	if out == nil {
+		out = &bytesEncAppenderDefOut
+	}
+	e.e.resetOutBytes(out)
+}
+
+func (helperEncDriverJsonBytes) newEncoderBytes(out *[]byte, h Handle) *encoderJsonBytes {
+	var c1 encoderJsonBytes
+	c1.bytes = true
+	c1.init(h)
+	c1.ResetBytes(out)
+	return &c1
+}
+
+func (helperEncDriverJsonBytes) newEncoderIO(out io.Writer, h Handle) *encoderJsonBytes {
+	var c1 encoderJsonBytes
+	c1.bytes = false
+	c1.init(h)
+	c1.Reset(out)
+	return &c1
+}
+
+func (helperEncDriverJsonBytes) encFnloadFastpathUnderlying(ti *typeInfo, fp *fastpathEsJsonBytes) (f *fastpathEJsonBytes, u reflect.Type) {
+	rtid := rt2id(ti.fastpathUnderlying)
+	idx, ok := fastpathAvIndex(rtid)
+	if !ok {
+		return
+	}
+	f = &fp[idx]
+	if uint8(reflect.Array) == ti.kind {
+		u = reflect.ArrayOf(ti.rt.Len(), ti.elem)
+	} else {
+		u = f.rt
+	}
+	return
+}
+
+func (helperEncDriverJsonBytes) encFindRtidFn(s []encRtidFnJsonBytes, rtid uintptr) (i uint, fn *encFnJsonBytes) {
+
+	var h uint
+	var j = uint(len(s))
+LOOP:
+	if i < j {
+		h = (i + j) >> 1
+		if s[h].rtid < rtid {
+			i = h + 1
+		} else {
+			j = h
+		}
+		goto LOOP
+	}
+	if i < uint(len(s)) && s[i].rtid == rtid {
+		fn = s[i].fn
+	}
+	return
+}
+
+func (helperEncDriverJsonBytes) encFromRtidFnSlice(fns *atomicRtidFnSlice) (s []encRtidFnJsonBytes) {
+	if v := fns.load(); v != nil {
+		s = *(lowLevelToPtr[[]encRtidFnJsonBytes](v))
+	}
+	return
+}
+
+func (dh helperEncDriverJsonBytes) encFnViaBH(rt reflect.Type, fns *atomicRtidFnSlice,
+	x *BasicHandle, fp *fastpathEsJsonBytes, checkExt bool) (fn *encFnJsonBytes) {
+	return dh.encFnVia(rt, fns, x.typeInfos(), &x.mu, x.extHandle, fp,
+		checkExt, x.CheckCircularRef, x.timeBuiltin, x.binaryHandle, x.jsonHandle)
+}
+
+func (dh helperEncDriverJsonBytes) encFnVia(rt reflect.Type, fns *atomicRtidFnSlice,
+	tinfos *TypeInfos, mu *sync.Mutex, exth extHandle, fp *fastpathEsJsonBytes,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *encFnJsonBytes) {
+	rtid := rt2id(rt)
+	var sp []encRtidFnJsonBytes = dh.encFromRtidFnSlice(fns)
+	if sp != nil {
+		_, fn = dh.encFindRtidFn(sp, rtid)
+	}
+	if fn == nil {
+		fn = dh.encFnViaLoader(rt, rtid, fns, tinfos, mu, exth, fp, checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json)
+	}
+	return
+}
+
+func (dh helperEncDriverJsonBytes) encFnViaLoader(rt reflect.Type, rtid uintptr, fns *atomicRtidFnSlice,
+	tinfos *TypeInfos, mu *sync.Mutex, exth extHandle, fp *fastpathEsJsonBytes,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *encFnJsonBytes) {
+
+	fn = dh.encFnLoad(rt, rtid, tinfos, exth, fp, checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json)
+	var sp []encRtidFnJsonBytes
+	mu.Lock()
+	sp = dh.encFromRtidFnSlice(fns)
+
+	if sp == nil {
+		sp = []encRtidFnJsonBytes{{rtid, fn}}
+		fns.store(ptrToLowLevel(&sp))
+	} else {
+		idx, fn2 := dh.encFindRtidFn(sp, rtid)
+		if fn2 == nil {
+			sp2 := make([]encRtidFnJsonBytes, len(sp)+1)
+			copy(sp2[idx+1:], sp[idx:])
+			copy(sp2, sp[:idx])
+			sp2[idx] = encRtidFnJsonBytes{rtid, fn}
+			fns.store(ptrToLowLevel(&sp2))
+		}
+	}
+	mu.Unlock()
+	return
+}
+
+func (dh helperEncDriverJsonBytes) encFnLoad(rt reflect.Type, rtid uintptr, tinfos *TypeInfos,
+	exth extHandle, fp *fastpathEsJsonBytes,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *encFnJsonBytes) {
+	fn = new(encFnJsonBytes)
+	fi := &(fn.i)
+	ti := tinfos.get(rtid, rt)
+	fi.ti = ti
+	rk := reflect.Kind(ti.kind)
+
+	if rtid == timeTypId && timeBuiltin {
+		fn.fe = (*encoderJsonBytes).kTime
+	} else if rtid == rawTypId {
+		fn.fe = (*encoderJsonBytes).raw
+	} else if rtid == rawExtTypId {
+		fn.fe = (*encoderJsonBytes).rawExt
+		fi.addrE = true
+	} else if xfFn := exth.getExt(rtid, checkExt); xfFn != nil {
+		fi.xfTag, fi.xfFn = xfFn.tag, xfFn.ext
+		fn.fe = (*encoderJsonBytes).ext
+		if rk == reflect.Struct || rk == reflect.Array {
+			fi.addrE = true
+		}
+	} else if ti.flagSelfer || ti.flagSelferPtr {
+		fn.fe = (*encoderJsonBytes).selferMarshal
+		fi.addrE = ti.flagSelferPtr
+	} else if supportMarshalInterfaces && binaryEncoding &&
+		(ti.flagBinaryMarshaler || ti.flagBinaryMarshalerPtr) &&
+		(ti.flagBinaryUnmarshaler || ti.flagBinaryUnmarshalerPtr) {
+		fn.fe = (*encoderJsonBytes).binaryMarshal
+		fi.addrE = ti.flagBinaryMarshalerPtr
+	} else if supportMarshalInterfaces && !binaryEncoding && json &&
+		(ti.flagJsonMarshaler || ti.flagJsonMarshalerPtr) &&
+		(ti.flagJsonUnmarshaler || ti.flagJsonUnmarshalerPtr) {
+
+		fn.fe = (*encoderJsonBytes).jsonMarshal
+		fi.addrE = ti.flagJsonMarshalerPtr
+	} else if supportMarshalInterfaces && !binaryEncoding &&
+		(ti.flagTextMarshaler || ti.flagTextMarshalerPtr) &&
+		(ti.flagTextUnmarshaler || ti.flagTextUnmarshalerPtr) {
+		fn.fe = (*encoderJsonBytes).textMarshal
+		fi.addrE = ti.flagTextMarshalerPtr
+	} else {
+		if fastpathEnabled && (rk == reflect.Map || rk == reflect.Slice || rk == reflect.Array) {
+
+			var rtid2 uintptr
+			if !ti.flagHasPkgPath {
+				rtid2 = rtid
+				if rk == reflect.Array {
+					rtid2 = rt2id(ti.key)
+				}
+				if idx, ok := fastpathAvIndex(rtid2); ok {
+					fn.fe = fp[idx].encfn
+				}
+			} else {
+
+				xfe, xrt := dh.encFnloadFastpathUnderlying(ti, fp)
+				if xfe != nil {
+					xfnf := xfe.encfn
+					fn.fe = func(e *encoderJsonBytes, xf *encFnInfo, xrv reflect.Value) {
+						xfnf(e, xf, rvConvert(xrv, xrt))
+					}
+				}
+			}
+		}
+		if fn.fe == nil {
+			switch rk {
+			case reflect.Bool:
+				fn.fe = (*encoderJsonBytes).kBool
+			case reflect.String:
+
+				fn.fe = (*encoderJsonBytes).kString
+			case reflect.Int:
+				fn.fe = (*encoderJsonBytes).kInt
+			case reflect.Int8:
+				fn.fe = (*encoderJsonBytes).kInt8
+			case reflect.Int16:
+				fn.fe = (*encoderJsonBytes).kInt16
+			case reflect.Int32:
+				fn.fe = (*encoderJsonBytes).kInt32
+			case reflect.Int64:
+				fn.fe = (*encoderJsonBytes).kInt64
+			case reflect.Uint:
+				fn.fe = (*encoderJsonBytes).kUint
+			case reflect.Uint8:
+				fn.fe = (*encoderJsonBytes).kUint8
+			case reflect.Uint16:
+				fn.fe = (*encoderJsonBytes).kUint16
+			case reflect.Uint32:
+				fn.fe = (*encoderJsonBytes).kUint32
+			case reflect.Uint64:
+				fn.fe = (*encoderJsonBytes).kUint64
+			case reflect.Uintptr:
+				fn.fe = (*encoderJsonBytes).kUintptr
+			case reflect.Float32:
+				fn.fe = (*encoderJsonBytes).kFloat32
+			case reflect.Float64:
+				fn.fe = (*encoderJsonBytes).kFloat64
+			case reflect.Complex64:
+				fn.fe = (*encoderJsonBytes).kComplex64
+			case reflect.Complex128:
+				fn.fe = (*encoderJsonBytes).kComplex128
+			case reflect.Chan:
+				fn.fe = (*encoderJsonBytes).kChan
+			case reflect.Slice:
+				fn.fe = (*encoderJsonBytes).kSlice
+			case reflect.Array:
+				fn.fe = (*encoderJsonBytes).kArray
+			case reflect.Struct:
+				if ti.simple {
+					fn.fe = (*encoderJsonBytes).kStructSimple
+				} else {
+					fn.fe = (*encoderJsonBytes).kStruct
+				}
+			case reflect.Map:
+				fn.fe = (*encoderJsonBytes).kMap
+			case reflect.Interface:
+
+				fn.fe = (*encoderJsonBytes).kErr
+			default:
+
+				fn.fe = (*encoderJsonBytes).kErr
+			}
+		}
+	}
+	return
+}
+func (d *decoderJsonBytes) rawExt(f *decFnInfo, rv reflect.Value) {
+	d.d.DecodeRawExt(rv2i(rv).(*RawExt))
+}
+
+func (d *decoderJsonBytes) ext(f *decFnInfo, rv reflect.Value) {
+	d.d.DecodeExt(rv2i(rv), f.ti.rt, f.xfTag, f.xfFn)
+}
+
+func (d *decoderJsonBytes) selferUnmarshal(_ *decFnInfo, rv reflect.Value) {
+	rv2i(rv).(Selfer).CodecDecodeSelf(&Decoder{d})
+}
+
+func (d *decoderJsonBytes) binaryUnmarshal(_ *decFnInfo, rv reflect.Value) {
+	bm := rv2i(rv).(encoding.BinaryUnmarshaler)
+	xbs, _ := d.d.DecodeBytes()
+	fnerr := bm.UnmarshalBinary(xbs)
+	halt.onerror(fnerr)
+}
+
+func (d *decoderJsonBytes) textUnmarshal(_ *decFnInfo, rv reflect.Value) {
+	tm := rv2i(rv).(encoding.TextUnmarshaler)
+	fnerr := tm.UnmarshalText(bytesOKs(d.d.DecodeStringAsBytes()))
+	halt.onerror(fnerr)
+}
+
+func (d *decoderJsonBytes) jsonUnmarshal(_ *decFnInfo, rv reflect.Value) {
+	d.jsonUnmarshalV(rv2i(rv).(jsonUnmarshaler))
+}
+
+func (d *decoderJsonBytes) jsonUnmarshalV(tm jsonUnmarshaler) {
+
+	halt.onerror(tm.UnmarshalJSON(d.d.nextValueBytes()))
+}
+
+func (d *decoderJsonBytes) kErr(_ *decFnInfo, rv reflect.Value) {
+	halt.errorf("unsupported decoding kind: %s, for %#v", rv.Kind(), rv)
+
+}
+
+func (d *decoderJsonBytes) raw(_ *decFnInfo, rv reflect.Value) {
+	rvSetBytes(rv, d.rawBytes())
+}
+
+func (d *decoderJsonBytes) kString(_ *decFnInfo, rv reflect.Value) {
+	rvSetString(rv, d.detach2Str(d.d.DecodeStringAsBytes()))
+}
+
+func (d *decoderJsonBytes) kBool(_ *decFnInfo, rv reflect.Value) {
+	rvSetBool(rv, d.d.DecodeBool())
+}
+
+func (d *decoderJsonBytes) kTime(_ *decFnInfo, rv reflect.Value) {
+	rvSetTime(rv, d.d.DecodeTime())
+}
+
+func (d *decoderJsonBytes) kFloat32(_ *decFnInfo, rv reflect.Value) {
+	rvSetFloat32(rv, d.d.DecodeFloat32())
+}
+
+func (d *decoderJsonBytes) kFloat64(_ *decFnInfo, rv reflect.Value) {
+	rvSetFloat64(rv, d.d.DecodeFloat64())
+}
+
+func (d *decoderJsonBytes) kComplex64(_ *decFnInfo, rv reflect.Value) {
+	rvSetComplex64(rv, complex(d.d.DecodeFloat32(), 0))
+}
+
+func (d *decoderJsonBytes) kComplex128(_ *decFnInfo, rv reflect.Value) {
+	rvSetComplex128(rv, complex(d.d.DecodeFloat64(), 0))
+}
+
+func (d *decoderJsonBytes) kInt(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt(rv, int(chkOvf.IntV(d.d.DecodeInt64(), intBitsize)))
+}
+
+func (d *decoderJsonBytes) kInt8(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt8(rv, int8(chkOvf.IntV(d.d.DecodeInt64(), 8)))
+}
+
+func (d *decoderJsonBytes) kInt16(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt16(rv, int16(chkOvf.IntV(d.d.DecodeInt64(), 16)))
+}
+
+func (d *decoderJsonBytes) kInt32(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt32(rv, int32(chkOvf.IntV(d.d.DecodeInt64(), 32)))
+}
+
+func (d *decoderJsonBytes) kInt64(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt64(rv, d.d.DecodeInt64())
+}
+
+func (d *decoderJsonBytes) kUint(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint(rv, uint(chkOvf.UintV(d.d.DecodeUint64(), uintBitsize)))
+}
+
+func (d *decoderJsonBytes) kUintptr(_ *decFnInfo, rv reflect.Value) {
+	rvSetUintptr(rv, uintptr(chkOvf.UintV(d.d.DecodeUint64(), uintBitsize)))
+}
+
+func (d *decoderJsonBytes) kUint8(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint8(rv, uint8(chkOvf.UintV(d.d.DecodeUint64(), 8)))
+}
+
+func (d *decoderJsonBytes) kUint16(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint16(rv, uint16(chkOvf.UintV(d.d.DecodeUint64(), 16)))
+}
+
+func (d *decoderJsonBytes) kUint32(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint32(rv, uint32(chkOvf.UintV(d.d.DecodeUint64(), 32)))
+}
+
+func (d *decoderJsonBytes) kUint64(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint64(rv, d.d.DecodeUint64())
+}
+
+func (d *decoderJsonBytes) kInterfaceNaked(f *decFnInfo) (rvn reflect.Value) {
+
+	n := d.naked()
+	d.d.DecodeNaked()
+
+	if decFailNonEmptyIntf && f.ti.numMeth > 0 {
+		halt.errorf("cannot decode non-nil codec value into nil %v (%v methods)", f.ti.rt, f.ti.numMeth)
+	}
+
+	switch n.v {
+	case valueTypeMap:
+		mtid := d.mtid
+		if mtid == 0 {
+			if d.jsms {
+				mtid = mapStrIntfTypId
+			} else {
+				mtid = mapIntfIntfTypId
+			}
+		}
+		if mtid == mapStrIntfTypId {
+			var v2 map[string]interface{}
+			d.decode(&v2)
+			rvn = rv4iptr(&v2).Elem()
+		} else if mtid == mapIntfIntfTypId {
+			var v2 map[interface{}]interface{}
+			d.decode(&v2)
+			rvn = rv4iptr(&v2).Elem()
+		} else if d.mtr {
+			rvn = reflect.New(d.h.MapType)
+			d.decode(rv2i(rvn))
+			rvn = rvn.Elem()
+		} else {
+
+			rvn = rvZeroAddrK(d.h.MapType, reflect.Map)
+			d.decodeValue(rvn, nil)
+		}
+	case valueTypeArray:
+		if d.stid == 0 || d.stid == intfSliceTypId {
+			var v2 []interface{}
+			d.decode(&v2)
+			rvn = rv4iptr(&v2).Elem()
+		} else if d.str {
+			rvn = reflect.New(d.h.SliceType)
+			d.decode(rv2i(rvn))
+			rvn = rvn.Elem()
+		} else {
+			rvn = rvZeroAddrK(d.h.SliceType, reflect.Slice)
+			d.decodeValue(rvn, nil)
+		}
+		if d.h.PreferArrayOverSlice {
+			rvn = rvGetArray4Slice(rvn)
+		}
+	case valueTypeExt:
+		tag, bytes := n.u, n.l
+		bfn := d.h.getExtForTag(tag)
+		var re = RawExt{Tag: tag}
+		if bytes == nil {
+
+			if bfn == nil {
+				d.decode(&re.Value)
+				rvn = rv4iptr(&re).Elem()
+			} else if bfn.ext == SelfExt {
+				rvn = rvZeroAddrK(bfn.rt, bfn.rt.Kind())
+				d.decodeValue(rvn, d.fnNoExt(bfn.rt))
+			} else {
+				rvn = reflect.New(bfn.rt)
+				d.interfaceExtConvertAndDecode(rv2i(rvn), bfn.ext)
+				rvn = rvn.Elem()
+			}
+		} else {
+
+			if bfn == nil {
+				re.setData(bytes, false)
+				rvn = rv4iptr(&re).Elem()
+			} else {
+				rvn = reflect.New(bfn.rt)
+				if bfn.ext == SelfExt {
+					sideDecode(d.hh, &d.h.sideDecPool, func(sd decoderI) { oneOffDecode(sd, rv2i(rvn), bytes, bfn.rt, true) })
+				} else {
+					bfn.ext.ReadExt(rv2i(rvn), bytes)
+				}
+				rvn = rvn.Elem()
+			}
+		}
+
+		if d.h.PreferPointerForStructOrArray && rvn.CanAddr() {
+			if rk := rvn.Kind(); rk == reflect.Array || rk == reflect.Struct {
+				rvn = rvn.Addr()
+			}
+		}
+	case valueTypeNil:
+
+	case valueTypeInt:
+		rvn = n.ri()
+	case valueTypeUint:
+		rvn = n.ru()
+	case valueTypeFloat:
+		rvn = n.rf()
+	case valueTypeBool:
+		rvn = n.rb()
+	case valueTypeString, valueTypeSymbol:
+		rvn = n.rs()
+	case valueTypeBytes:
+		rvn = n.rl()
+	case valueTypeTime:
+		rvn = n.rt()
+	default:
+		halt.errorStr2("kInterfaceNaked: unexpected valueType: ", n.v.String())
+	}
+	return
+}
+
+func (d *decoderJsonBytes) kInterface(f *decFnInfo, rv reflect.Value) {
+
+	isnilrv := rvIsNil(rv)
+
+	var rvn reflect.Value
+
+	if d.h.InterfaceReset {
+
+		rvn = d.h.intf2impl(f.ti.rtid)
+		if !rvn.IsValid() {
+			rvn = d.kInterfaceNaked(f)
+			if rvn.IsValid() {
+				rvSetIntf(rv, rvn)
+			} else if !isnilrv {
+				decSetNonNilRV2Zero4Intf(rv)
+			}
+			return
+		}
+	} else if isnilrv {
+
+		rvn = d.h.intf2impl(f.ti.rtid)
+		if !rvn.IsValid() {
+			rvn = d.kInterfaceNaked(f)
+			if rvn.IsValid() {
+				rvSetIntf(rv, rvn)
+			}
+			return
+		}
+	} else {
+
+		rvn = rv.Elem()
+	}
+
+	canDecode, _ := isDecodeable(rvn)
+
+	if !canDecode {
+		rvn2 := d.oneShotAddrRV(rvn.Type(), rvn.Kind())
+		rvSetDirect(rvn2, rvn)
+		rvn = rvn2
+	}
+
+	d.decodeValue(rvn, nil)
+	rvSetIntf(rv, rvn)
+}
+
+func (d *decoderJsonBytes) kStructField(si *structFieldInfo, rv reflect.Value) {
+	if d.d.TryNil() {
+		rv = si.fieldNoAlloc(rv, true)
+		if rv.IsValid() {
+			decSetNonNilRV2Zero(rv)
+		}
+	} else if si.decBuiltin {
+		rv = rvAddr(si.fieldAlloc(rv), si.ptrTyp)
+		d.decode(rv2i(rv))
+	} else {
+		fn := d.fn(si.baseTyp)
+		rv = si.fieldAlloc(rv)
+		if fn.i.addrD {
+			rv = rvAddr(rv, si.ptrTyp)
+		}
+		fn.fd(d, &fn.i, rv)
+	}
+}
+
+func (d *decoderJsonBytes) kStructSimple(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+	ctyp := d.d.ContainerType()
+	ti := f.ti
+	if ctyp == valueTypeMap {
+		containerLen := d.mapStart(d.d.ReadMapStart())
+		if containerLen == 0 {
+			d.mapEnd()
+			return
+		}
+		hasLen := containerLen >= 0
+		var rvkencname []byte
+		for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+			d.mapElemKey(j == 0)
+			sab, att := d.d.DecodeStringAsBytes()
+			rvkencname = d.usableStructFieldNameBytes(rvkencname, sab, att)
+			d.mapElemValue()
+			if si := ti.siForEncName(rvkencname); si != nil {
+				d.kStructField(si, rv)
+			} else {
+				d.structFieldNotFound(-1, stringView(rvkencname))
+			}
+		}
+		d.mapEnd()
+	} else if ctyp == valueTypeArray {
+		containerLen := d.arrayStart(d.d.ReadArrayStart())
+		if containerLen == 0 {
+			d.arrayEnd()
+			return
+		}
+
+		tisfi := ti.sfi.source()
+		hasLen := containerLen >= 0
+
+		for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+			d.arrayElem(j == 0)
+			if j < len(tisfi) {
+				d.kStructField(tisfi[j], rv)
+			} else {
+				d.structFieldNotFound(j, "")
+			}
+		}
+		d.arrayEnd()
+	} else {
+		halt.onerror(errNeedMapOrArrayDecodeToStruct)
+	}
+}
+
+func (d *decoderJsonBytes) kStruct(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+	ctyp := d.d.ContainerType()
+	ti := f.ti
+	var mf MissingFielder
+	if ti.flagMissingFielder {
+		mf = rv2i(rv).(MissingFielder)
+	} else if ti.flagMissingFielderPtr {
+		mf = rv2i(rvAddr(rv, ti.ptr)).(MissingFielder)
+	}
+	if ctyp == valueTypeMap {
+		containerLen := d.mapStart(d.d.ReadMapStart())
+		if containerLen == 0 {
+			d.mapEnd()
+			return
+		}
+		hasLen := containerLen >= 0
+		var name2 []byte
+		var rvkencname []byte
+		tkt := ti.keyType
+		for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+			d.mapElemKey(j == 0)
+
+			if tkt == valueTypeString {
+				sab, att := d.d.DecodeStringAsBytes()
+				rvkencname = d.usableStructFieldNameBytes(rvkencname, sab, att)
+			} else if tkt == valueTypeInt {
+				rvkencname = strconv.AppendInt(d.b[:0], d.d.DecodeInt64(), 10)
+			} else if tkt == valueTypeUint {
+				rvkencname = strconv.AppendUint(d.b[:0], d.d.DecodeUint64(), 10)
+			} else if tkt == valueTypeFloat {
+				rvkencname = strconv.AppendFloat(d.b[:0], d.d.DecodeFloat64(), 'f', -1, 64)
+			} else {
+				halt.errorStr2("invalid struct key type: ", ti.keyType.String())
+			}
+
+			d.mapElemValue()
+			if si := ti.siForEncName(rvkencname); si != nil {
+				d.kStructField(si, rv)
+			} else if mf != nil {
+
+				name2 = append(name2[:0], rvkencname...)
+				var f interface{}
+				d.decode(&f)
+				if !mf.CodecMissingField(name2, f) && d.h.ErrorIfNoField {
+					halt.errorStr2("no matching struct field when decoding stream map with key: ", stringView(name2))
+				}
+			} else {
+				d.structFieldNotFound(-1, stringView(rvkencname))
+			}
+		}
+		d.mapEnd()
+	} else if ctyp == valueTypeArray {
+		containerLen := d.arrayStart(d.d.ReadArrayStart())
+		if containerLen == 0 {
+			d.arrayEnd()
+			return
+		}
+
+		tisfi := ti.sfi.source()
+		hasLen := containerLen >= 0
+
+		for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+			d.arrayElem(j == 0)
+			if j < len(tisfi) {
+				d.kStructField(tisfi[j], rv)
+			} else {
+				d.structFieldNotFound(j, "")
+			}
+		}
+
+		d.arrayEnd()
+	} else {
+		halt.onerror(errNeedMapOrArrayDecodeToStruct)
+	}
+}
+
+func (d *decoderJsonBytes) kSlice(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+
+	ti := f.ti
+	rvCanset := rv.CanSet()
+
+	ctyp := d.d.ContainerType()
+	if ctyp == valueTypeBytes || ctyp == valueTypeString {
+
+		if !(ti.rtid == uint8SliceTypId || ti.elemkind == uint8(reflect.Uint8)) {
+			halt.errorf("bytes/string in stream must decode into slice/array of bytes, not %v", ti.rt)
+		}
+		rvbs := rvGetBytes(rv)
+		if rvCanset {
+			bs2, bst := d.decodeBytesInto(rvbs, false)
+			if bst != dBytesIntoParamOut {
+				rvSetBytes(rv, bs2)
+			}
+		} else {
+
+			d.decodeBytesInto(rvbs[:len(rvbs):len(rvbs)], true)
+		}
+		return
+	}
+
+	var containerLenS int
+	isArray := ctyp == valueTypeArray
+	if isArray {
+		containerLenS = d.arrayStart(d.d.ReadArrayStart())
+	} else if ctyp == valueTypeMap {
+		containerLenS = d.mapStart(d.d.ReadMapStart()) * 2
+	} else {
+		halt.errorStr2("decoding into a slice, expect map/array - got ", ctyp.String())
+	}
+
+	if containerLenS == 0 {
+		if rvCanset {
+			if rvIsNil(rv) {
+				rvSetDirect(rv, rvSliceZeroCap(ti.rt))
+			} else {
+				rvSetSliceLen(rv, 0)
+			}
+		}
+		if isArray {
+			d.arrayEnd()
+		} else {
+			d.mapEnd()
+		}
+		return
+	}
+
+	rtelem0Mut := !scalarBitset.isset(ti.elemkind)
+	rtelem := ti.elem
+
+	for k := reflect.Kind(ti.elemkind); k == reflect.Ptr; k = rtelem.Kind() {
+		rtelem = rtelem.Elem()
+	}
+
+	var fn *decFnJsonBytes
+
+	var rvChanged bool
+
+	var rv0 = rv
+	var rv9 reflect.Value
+
+	rvlen := rvLenSlice(rv)
+	rvcap := rvCapSlice(rv)
+	maxInitLen := d.maxInitLen()
+	hasLen := containerLenS >= 0
+	if hasLen {
+		if containerLenS > rvcap {
+			oldRvlenGtZero := rvlen > 0
+			rvlen1 := int(decInferLen(containerLenS, maxInitLen, uint(ti.elemsize)))
+			if rvlen1 == rvlen {
+			} else if rvlen1 <= rvcap {
+				if rvCanset {
+					rvlen = rvlen1
+					rvSetSliceLen(rv, rvlen)
+				}
+			} else if rvCanset {
+				rvlen = rvlen1
+				rv, rvCanset = rvMakeSlice(rv, f.ti, rvlen, rvlen)
+				rvcap = rvlen
+				rvChanged = !rvCanset
+			} else {
+				halt.errorStr("cannot decode into non-settable slice")
+			}
+			if rvChanged && oldRvlenGtZero && rtelem0Mut {
+				rvCopySlice(rv, rv0, rtelem)
+			}
+		} else if containerLenS != rvlen {
+			if rvCanset {
+				rvlen = containerLenS
+				rvSetSliceLen(rv, rvlen)
+			}
+		}
+	}
+
+	var elemReset = d.h.SliceElementReset
+
+	var rtelemIsPtr bool
+	var rtelemElem reflect.Type
+	builtin := ti.tielem.flagDecBuiltin
+	if builtin {
+		rtelemIsPtr = ti.elemkind == uint8(reflect.Ptr)
+		if rtelemIsPtr {
+			rtelemElem = ti.elem.Elem()
+		}
+	}
+
+	var j int
+	for ; d.containerNext(j, containerLenS, hasLen); j++ {
+		if j == 0 {
+			if rvIsNil(rv) {
+				if rvCanset {
+					rvlen = int(decInferLen(containerLenS, maxInitLen, uint(ti.elemsize)))
+					rv, rvCanset = rvMakeSlice(rv, f.ti, rvlen, rvlen)
+					rvcap = rvlen
+					rvChanged = !rvCanset
+				} else {
+					halt.errorStr("cannot decode into non-settable slice")
+				}
+			}
+			if fn == nil {
+				fn = d.fn(rtelem)
+			}
+		}
+
+		if ctyp == valueTypeArray {
+			d.arrayElem(j == 0)
+		} else if j&1 == 0 {
+			d.mapElemKey(j == 0)
+		} else {
+			d.mapElemValue()
+		}
+
+		if j >= rvlen {
+
+			if rvlen < rvcap {
+				rvlen = rvcap
+				if rvCanset {
+					rvSetSliceLen(rv, rvlen)
+				} else if rvChanged {
+					rv = rvSlice(rv, rvlen)
+				} else {
+					halt.onerror(errExpandSliceCannotChange)
+				}
+			} else {
+				if !(rvCanset || rvChanged) {
+					halt.onerror(errExpandSliceCannotChange)
+				}
+				rv, rvcap, rvCanset = rvGrowSlice(rv, f.ti, rvcap, 1)
+
+				rvlen = rvcap
+				rvChanged = !rvCanset
+			}
+		}
+
+		rv9 = rvArrayIndex(rv, j, f.ti, true)
+		if elemReset {
+			rvSetZero(rv9)
+		}
+		if d.d.TryNil() {
+			rvSetZero(rv9)
+		} else if builtin {
+			if rtelemIsPtr {
+				if rvIsNil(rv9) {
+					rvSetDirect(rv9, reflect.New(rtelemElem))
+				}
+				d.decode(rv2i(rv9))
+			} else {
+				d.decode(rv2i(rvAddr(rv9, ti.tielem.ptr)))
+			}
+		} else {
+			d.decodeValueNoCheckNil(rv9, fn)
+		}
+	}
+	if j < rvlen {
+		if rvCanset {
+			rvSetSliceLen(rv, j)
+		} else if rvChanged {
+			rv = rvSlice(rv, j)
+		}
+
+	} else if j == 0 && rvIsNil(rv) {
+		if rvCanset {
+			rv = rvSliceZeroCap(ti.rt)
+			rvCanset = false
+			rvChanged = true
+		}
+	}
+	if isArray {
+		d.arrayEnd()
+	} else {
+		d.mapEnd()
+	}
+
+	if rvChanged {
+		rvSetDirect(rv0, rv)
+	}
+}
+
+func (d *decoderJsonBytes) kArray(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+
+	ti := f.ti
+	ctyp := d.d.ContainerType()
+	if handleBytesWithinKArray && (ctyp == valueTypeBytes || ctyp == valueTypeString) {
+
+		if ti.elemkind != uint8(reflect.Uint8) {
+			halt.errorf("bytes/string in stream can decode into array of bytes, but not %v", ti.rt)
+		}
+		rvbs := rvGetArrayBytes(rv, nil)
+		d.decodeBytesInto(rvbs, true)
+		return
+	}
+
+	var containerLenS int
+	isArray := ctyp == valueTypeArray
+	if isArray {
+		containerLenS = d.arrayStart(d.d.ReadArrayStart())
+	} else if ctyp == valueTypeMap {
+		containerLenS = d.mapStart(d.d.ReadMapStart()) * 2
+	} else {
+		halt.errorStr2("decoding into a slice, expect map/array - got ", ctyp.String())
+	}
+
+	if containerLenS == 0 {
+		if isArray {
+			d.arrayEnd()
+		} else {
+			d.mapEnd()
+		}
+		return
+	}
+
+	rtelem := ti.elem
+	for k := reflect.Kind(ti.elemkind); k == reflect.Ptr; k = rtelem.Kind() {
+		rtelem = rtelem.Elem()
+	}
+
+	var rv9 reflect.Value
+
+	rvlen := rv.Len()
+	hasLen := containerLenS >= 0
+	if hasLen && containerLenS > rvlen {
+		halt.errorf("cannot decode into array with length: %v, less than container length: %v", any(rvlen), any(containerLenS))
+	}
+
+	var elemReset = d.h.SliceElementReset
+
+	var rtelemIsPtr bool
+	var rtelemElem reflect.Type
+	var fn *decFnJsonBytes
+	builtin := ti.tielem.flagDecBuiltin
+	if builtin {
+		rtelemIsPtr = ti.elemkind == uint8(reflect.Ptr)
+		if rtelemIsPtr {
+			rtelemElem = ti.elem.Elem()
+		}
+	} else {
+		fn = d.fn(rtelem)
+	}
+
+	for j := 0; d.containerNext(j, containerLenS, hasLen); j++ {
+		if ctyp == valueTypeArray {
+			d.arrayElem(j == 0)
+		} else if j&1 == 0 {
+			d.mapElemKey(j == 0)
+		} else {
+			d.mapElemValue()
+		}
+
+		if j >= rvlen {
+			d.arrayCannotExpand(rvlen, j+1)
+			d.swallow()
+			continue
+		}
+
+		rv9 = rvArrayIndex(rv, j, f.ti, false)
+		if elemReset {
+			rvSetZero(rv9)
+		}
+		if d.d.TryNil() {
+			rvSetZero(rv9)
+		} else if builtin {
+			if rtelemIsPtr {
+				if rvIsNil(rv9) {
+					rvSetDirect(rv9, reflect.New(rtelemElem))
+				}
+				d.decode(rv2i(rv9))
+			} else {
+				d.decode(rv2i(rvAddr(rv9, ti.tielem.ptr)))
+			}
+		} else {
+			d.decodeValueNoCheckNil(rv9, fn)
+		}
+	}
+	if isArray {
+		d.arrayEnd()
+	} else {
+		d.mapEnd()
+	}
+}
+
+func (d *decoderJsonBytes) kChan(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+
+	ti := f.ti
+	if ti.chandir&uint8(reflect.SendDir) == 0 {
+		halt.errorStr("receive-only channel cannot be decoded")
+	}
+	ctyp := d.d.ContainerType()
+	if ctyp == valueTypeBytes || ctyp == valueTypeString {
+
+		if !(ti.rtid == uint8SliceTypId || ti.elemkind == uint8(reflect.Uint8)) {
+			halt.errorf("bytes/string in stream must decode into slice/array of bytes, not %v", ti.rt)
+		}
+		bs2, _ := d.d.DecodeBytes()
+		irv := rv2i(rv)
+		ch, ok := irv.(chan<- byte)
+		if !ok {
+			ch = irv.(chan byte)
+		}
+		for _, b := range bs2 {
+			ch <- b
+		}
+		return
+	}
+
+	var rvCanset = rv.CanSet()
+
+	var containerLenS int
+	isArray := ctyp == valueTypeArray
+	if isArray {
+		containerLenS = d.arrayStart(d.d.ReadArrayStart())
+	} else if ctyp == valueTypeMap {
+		containerLenS = d.mapStart(d.d.ReadMapStart()) * 2
+	} else {
+		halt.errorStr2("decoding into a slice, expect map/array - got ", ctyp.String())
+	}
+
+	if containerLenS == 0 {
+		if rvCanset && rvIsNil(rv) {
+			rvSetDirect(rv, reflect.MakeChan(ti.rt, 0))
+		}
+		if isArray {
+			d.arrayEnd()
+		} else {
+			d.mapEnd()
+		}
+		return
+	}
+
+	rtelem := ti.elem
+	useTransient := decUseTransient && ti.elemkind != byte(reflect.Ptr) && ti.tielem.flagCanTransient
+
+	for k := reflect.Kind(ti.elemkind); k == reflect.Ptr; k = rtelem.Kind() {
+		rtelem = rtelem.Elem()
+	}
+
+	var fn *decFnJsonBytes
+
+	var rvChanged bool
+	var rv0 = rv
+	var rv9 reflect.Value
+
+	var rvlen int
+	hasLen := containerLenS >= 0
+	maxInitLen := d.maxInitLen()
+
+	for j := 0; d.containerNext(j, containerLenS, hasLen); j++ {
+		if j == 0 {
+			if rvIsNil(rv) {
+				if hasLen {
+					rvlen = int(decInferLen(containerLenS, maxInitLen, uint(ti.elemsize)))
+				} else {
+					rvlen = decDefChanCap
+				}
+				if rvCanset {
+					rv = reflect.MakeChan(ti.rt, rvlen)
+					rvChanged = true
+				} else {
+					halt.errorStr("cannot decode into non-settable chan")
+				}
+			}
+			if fn == nil {
+				fn = d.fn(rtelem)
+			}
+		}
+
+		if ctyp == valueTypeArray {
+			d.arrayElem(j == 0)
+		} else if j&1 == 0 {
+			d.mapElemKey(j == 0)
+		} else {
+			d.mapElemValue()
+		}
+
+		if rv9.IsValid() {
+			rvSetZero(rv9)
+		} else if useTransient {
+			rv9 = d.perType.TransientAddrK(ti.elem, reflect.Kind(ti.elemkind))
+		} else {
+			rv9 = rvZeroAddrK(ti.elem, reflect.Kind(ti.elemkind))
+		}
+		if !d.d.TryNil() {
+			d.decodeValueNoCheckNil(rv9, fn)
+		}
+		rv.Send(rv9)
+	}
+	if isArray {
+		d.arrayEnd()
+	} else {
+		d.mapEnd()
+	}
+
+	if rvChanged {
+		rvSetDirect(rv0, rv)
+	}
+
+}
+
+func (d *decoderJsonBytes) kMap(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+	containerLen := d.mapStart(d.d.ReadMapStart())
+	ti := f.ti
+	if rvIsNil(rv) {
+		rvlen := int(decInferLen(containerLen, d.maxInitLen(), uint(ti.keysize+ti.elemsize)))
+		rvSetDirect(rv, makeMapReflect(ti.rt, rvlen))
+	}
+
+	if containerLen == 0 {
+		d.mapEnd()
+		return
+	}
+
+	ktype, vtype := ti.key, ti.elem
+	ktypeId := rt2id(ktype)
+	vtypeKind := reflect.Kind(ti.elemkind)
+	ktypeKind := reflect.Kind(ti.keykind)
+	mparams := getMapReqParams(ti)
+
+	vtypePtr := vtypeKind == reflect.Ptr
+	ktypePtr := ktypeKind == reflect.Ptr
+
+	vTransient := decUseTransient && !vtypePtr && ti.tielem.flagCanTransient
+
+	kTransient := vTransient && !ktypePtr && ti.tikey.flagCanTransient
+
+	var vtypeElem reflect.Type
+
+	var keyFn, valFn *decFnJsonBytes
+	var ktypeLo, vtypeLo = ktype, vtype
+
+	if ktypeKind == reflect.Ptr {
+		for ktypeLo = ktype.Elem(); ktypeLo.Kind() == reflect.Ptr; ktypeLo = ktypeLo.Elem() {
+		}
+	}
+
+	if vtypePtr {
+		vtypeElem = vtype.Elem()
+		for vtypeLo = vtypeElem; vtypeLo.Kind() == reflect.Ptr; vtypeLo = vtypeLo.Elem() {
+		}
+	}
+
+	rvkMut := !scalarBitset.isset(ti.keykind)
+	rvvMut := !scalarBitset.isset(ti.elemkind)
+	rvvCanNil := isnilBitset.isset(ti.elemkind)
+
+	var rvk, rvkn, rvv, rvvn, rvva, rvvz reflect.Value
+
+	var doMapGet, doMapSet bool
+
+	if !d.h.MapValueReset {
+		if rvvMut && (vtypeKind != reflect.Interface || !d.h.InterfaceReset) {
+			doMapGet = true
+			rvva = mapAddrLoopvarRV(vtype, vtypeKind)
+		}
+	}
+
+	ktypeIsString := ktypeId == stringTypId
+	ktypeIsIntf := ktypeId == intfTypId
+	hasLen := containerLen >= 0
+
+	var kstr2bs []byte
+	var kstr string
+
+	var mapKeyStringSharesBytesBuf bool
+	var att dBytesAttachState
+
+	var vElem, kElem reflect.Type
+	kbuiltin := ti.tikey.flagDecBuiltin && ti.keykind != uint8(reflect.Slice)
+	vbuiltin := ti.tielem.flagDecBuiltin
+	if kbuiltin && ktypePtr {
+		kElem = ti.key.Elem()
+	}
+	if vbuiltin && vtypePtr {
+		vElem = ti.elem.Elem()
+	}
+
+	for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+		mapKeyStringSharesBytesBuf = false
+		kstr = ""
+		if j == 0 {
+
+			if kTransient {
+				rvk = d.perType.TransientAddr2K(ktype, ktypeKind)
+			} else {
+				rvk = rvZeroAddrK(ktype, ktypeKind)
+			}
+			if !rvkMut {
+				rvkn = rvk
+			}
+			if !rvvMut {
+				if vTransient {
+					rvvn = d.perType.TransientAddrK(vtype, vtypeKind)
+				} else {
+					rvvn = rvZeroAddrK(vtype, vtypeKind)
+				}
+			}
+			if !ktypeIsString && keyFn == nil {
+				keyFn = d.fn(ktypeLo)
+			}
+			if valFn == nil {
+				valFn = d.fn(vtypeLo)
+			}
+		} else if rvkMut {
+			rvSetZero(rvk)
+		} else {
+			rvk = rvkn
+		}
+
+		d.mapElemKey(j == 0)
+
+		if d.d.TryNil() {
+			rvSetZero(rvk)
+		} else if ktypeIsString {
+			kstr2bs, att = d.d.DecodeStringAsBytes()
+			kstr, mapKeyStringSharesBytesBuf = d.bytes2Str(kstr2bs, att)
+			rvSetString(rvk, kstr)
+		} else {
+			if kbuiltin {
+				if ktypePtr {
+					if rvIsNil(rvk) {
+						rvSetDirect(rvk, reflect.New(kElem))
+					}
+					d.decode(rv2i(rvk))
+				} else {
+					d.decode(rv2i(rvAddr(rvk, ti.tikey.ptr)))
+				}
+			} else {
+				d.decodeValueNoCheckNil(rvk, keyFn)
+			}
+
+			if ktypeIsIntf {
+				if rvk2 := rvk.Elem(); rvk2.IsValid() && rvk2.Type() == uint8SliceTyp {
+					kstr2bs = rvGetBytes(rvk2)
+					kstr, mapKeyStringSharesBytesBuf = d.bytes2Str(kstr2bs, dBytesAttachView)
+					rvSetIntf(rvk, rv4istr(kstr))
+				}
+
+			}
+		}
+
+		if mapKeyStringSharesBytesBuf && d.bufio {
+			if ktypeIsString {
+				rvSetString(rvk, d.detach2Str(kstr2bs, att))
+			} else {
+				rvSetIntf(rvk, rv4istr(d.detach2Str(kstr2bs, att)))
+			}
+			mapKeyStringSharesBytesBuf = false
+		}
+
+		d.mapElemValue()
+
+		if d.d.TryNil() {
+			if mapKeyStringSharesBytesBuf {
+				if ktypeIsString {
+					rvSetString(rvk, d.detach2Str(kstr2bs, att))
+				} else {
+					rvSetIntf(rvk, rv4istr(d.detach2Str(kstr2bs, att)))
+				}
+			}
+
+			if !rvvz.IsValid() {
+				rvvz = rvZeroK(vtype, vtypeKind)
+			}
+			mapSet(rv, rvk, rvvz, mparams)
+			continue
+		}
+
+		doMapSet = true
+
+		if !rvvMut {
+			rvv = rvvn
+		} else if !doMapGet {
+			goto NEW_RVV
+		} else {
+			rvv = mapGet(rv, rvk, rvva, mparams)
+			if !rvv.IsValid() || (rvvCanNil && rvIsNil(rvv)) {
+				goto NEW_RVV
+			}
+			switch vtypeKind {
+			case reflect.Ptr, reflect.Map:
+				doMapSet = false
+			case reflect.Interface:
+
+				rvvn = rvv.Elem()
+				if k := rvvn.Kind(); (k == reflect.Ptr || k == reflect.Map) && !rvIsNil(rvvn) {
+					d.decodeValueNoCheckNil(rvvn, nil)
+					continue
+				}
+
+				rvvn = rvZeroAddrK(vtype, vtypeKind)
+				rvSetIntf(rvvn, rvv)
+				rvv = rvvn
+			default:
+
+				if vTransient {
+					rvvn = d.perType.TransientAddrK(vtype, vtypeKind)
+				} else {
+					rvvn = rvZeroAddrK(vtype, vtypeKind)
+				}
+				rvSetDirect(rvvn, rvv)
+				rvv = rvvn
+			}
+		}
+		goto DECODE_VALUE_NO_CHECK_NIL
+
+	NEW_RVV:
+		if vtypePtr {
+			rvv = reflect.New(vtypeElem)
+		} else if vTransient {
+			rvv = d.perType.TransientAddrK(vtype, vtypeKind)
+		} else {
+			rvv = rvZeroAddrK(vtype, vtypeKind)
+		}
+
+	DECODE_VALUE_NO_CHECK_NIL:
+		if doMapSet && mapKeyStringSharesBytesBuf {
+			if ktypeIsString {
+				rvSetString(rvk, d.detach2Str(kstr2bs, att))
+			} else {
+				rvSetIntf(rvk, rv4istr(d.detach2Str(kstr2bs, att)))
+			}
+		}
+		if vbuiltin {
+			if vtypePtr {
+				if rvIsNil(rvv) {
+					rvSetDirect(rvv, reflect.New(vElem))
+				}
+				d.decode(rv2i(rvv))
+			} else {
+				d.decode(rv2i(rvAddr(rvv, ti.tielem.ptr)))
+			}
+		} else {
+			d.decodeValueNoCheckNil(rvv, valFn)
+		}
+		if doMapSet {
+			mapSet(rv, rvk, rvv, mparams)
+		}
+	}
+
+	d.mapEnd()
+}
+
+func (d *decoderJsonBytes) init(h Handle) {
+	initHandle(h)
+	callMake(&d.d)
+	d.hh = h
+	d.h = h.getBasicHandle()
+
+	d.err = errDecoderNotInitialized
+
+	if d.h.InternString && d.is == nil {
+		d.is.init()
+	}
+
+	d.fp = d.d.init(h, &d.decoderBase, d).(*fastpathDsJsonBytes)
+
+	if d.bytes {
+		d.rtidFn = &d.h.rtidFnsDecBytes
+		d.rtidFnNoExt = &d.h.rtidFnsDecNoExtBytes
+	} else {
+		d.bufio = d.h.ReaderBufferSize > 0
+		d.rtidFn = &d.h.rtidFnsDecIO
+		d.rtidFnNoExt = &d.h.rtidFnsDecNoExtIO
+	}
+
+	d.reset()
+
+}
+
+func (d *decoderJsonBytes) reset() {
+	d.d.reset()
+	d.err = nil
+	d.c = 0
+	d.depth = 0
+	d.calls = 0
+
+	d.maxdepth = decDefMaxDepth
+	if d.h.MaxDepth > 0 {
+		d.maxdepth = d.h.MaxDepth
+	}
+	d.mtid = 0
+	d.stid = 0
+	d.mtr = false
+	d.str = false
+	if d.h.MapType != nil {
+		d.mtid = rt2id(d.h.MapType)
+		_, d.mtr = fastpathAvIndex(d.mtid)
+	}
+	if d.h.SliceType != nil {
+		d.stid = rt2id(d.h.SliceType)
+		_, d.str = fastpathAvIndex(d.stid)
+	}
+}
+
+func (d *decoderJsonBytes) Reset(r io.Reader) {
+	if d.bytes {
+		halt.onerror(errDecNoResetBytesWithReader)
+	}
+	d.reset()
+	if r == nil {
+		r = &eofReader
+	}
+	d.d.resetInIO(r)
+}
+
+func (d *decoderJsonBytes) ResetBytes(in []byte) {
+	if !d.bytes {
+		halt.onerror(errDecNoResetReaderWithBytes)
+	}
+	d.resetBytes(in)
+}
+
+func (d *decoderJsonBytes) resetBytes(in []byte) {
+	d.reset()
+	if in == nil {
+		in = zeroByteSlice
+	}
+	d.d.resetInBytes(in)
+}
+
+func (d *decoderJsonBytes) ResetString(s string) {
+	d.ResetBytes(bytesView(s))
+}
+
+func (d *decoderJsonBytes) Decode(v interface{}) (err error) {
+
+	defer panicValToErr(d, callRecoverSentinel, &d.err, &err, debugging)
+	d.mustDecode(v)
+	return
+}
+
+func (d *decoderJsonBytes) MustDecode(v interface{}) {
+	defer panicValToErr(d, callRecoverSentinel, &d.err, nil, true)
+	d.mustDecode(v)
+	return
+}
+
+func (d *decoderJsonBytes) mustDecode(v interface{}) {
+	halt.onerror(d.err)
+	if d.hh == nil {
+		halt.onerror(errNoFormatHandle)
+	}
+
+	d.calls++
+	d.decode(v)
+	d.calls--
+}
+
+func (d *decoderJsonBytes) Release() {}
+
+func (d *decoderJsonBytes) swallow() {
+	d.d.nextValueBytes()
+}
+
+func (d *decoderJsonBytes) nextValueBytes() []byte {
+	return d.d.nextValueBytes()
+}
+
+func (d *decoderJsonBytes) decode(iv interface{}) {
+	_ = d.d
+
+	rv, ok := isNil(iv, true)
+	if ok {
+		halt.onerror(errCannotDecodeIntoNil)
+	}
+
+	switch v := iv.(type) {
+
+	case *string:
+		*v = d.detach2Str(d.d.DecodeStringAsBytes())
+	case *bool:
+		*v = d.d.DecodeBool()
+	case *int:
+		*v = int(chkOvf.IntV(d.d.DecodeInt64(), intBitsize))
+	case *int8:
+		*v = int8(chkOvf.IntV(d.d.DecodeInt64(), 8))
+	case *int16:
+		*v = int16(chkOvf.IntV(d.d.DecodeInt64(), 16))
+	case *int32:
+		*v = int32(chkOvf.IntV(d.d.DecodeInt64(), 32))
+	case *int64:
+		*v = d.d.DecodeInt64()
+	case *uint:
+		*v = uint(chkOvf.UintV(d.d.DecodeUint64(), uintBitsize))
+	case *uint8:
+		*v = uint8(chkOvf.UintV(d.d.DecodeUint64(), 8))
+	case *uint16:
+		*v = uint16(chkOvf.UintV(d.d.DecodeUint64(), 16))
+	case *uint32:
+		*v = uint32(chkOvf.UintV(d.d.DecodeUint64(), 32))
+	case *uint64:
+		*v = d.d.DecodeUint64()
+	case *uintptr:
+		*v = uintptr(chkOvf.UintV(d.d.DecodeUint64(), uintBitsize))
+	case *float32:
+		*v = d.d.DecodeFloat32()
+	case *float64:
+		*v = d.d.DecodeFloat64()
+	case *complex64:
+		*v = complex(d.d.DecodeFloat32(), 0)
+	case *complex128:
+		*v = complex(d.d.DecodeFloat64(), 0)
+	case *[]byte:
+		*v, _ = d.decodeBytesInto(*v, false)
+	case []byte:
+
+		d.decodeBytesInto(v[:len(v):len(v)], true)
+	case *time.Time:
+		*v = d.d.DecodeTime()
+	case *Raw:
+		*v = d.rawBytes()
+
+	case *interface{}:
+		d.decodeValue(rv4iptr(v), nil)
+
+	case reflect.Value:
+		if ok, _ = isDecodeable(v); !ok {
+			d.haltAsNotDecodeable(v)
+		}
+		d.decodeValue(v, nil)
+
+	default:
+
+		if skipFastpathTypeSwitchInDirectCall || !d.dh.fastpathDecodeTypeSwitch(iv, d) {
+			if !rv.IsValid() {
+				rv = reflect.ValueOf(iv)
+			}
+			if ok, _ = isDecodeable(rv); !ok {
+				d.haltAsNotDecodeable(rv)
+			}
+			d.decodeValue(rv, nil)
+		}
+	}
+}
+
+func (d *decoderJsonBytes) decodeValue(rv reflect.Value, fn *decFnJsonBytes) {
+	if d.d.TryNil() {
+		decSetNonNilRV2Zero(rv)
+	} else {
+		d.decodeValueNoCheckNil(rv, fn)
+	}
+}
+
+func (d *decoderJsonBytes) decodeValueNoCheckNil(rv reflect.Value, fn *decFnJsonBytes) {
+
+	var rvp reflect.Value
+	var rvpValid bool
+PTR:
+	if rv.Kind() == reflect.Ptr {
+		rvpValid = true
+		if rvIsNil(rv) {
+			rvSetDirect(rv, reflect.New(rv.Type().Elem()))
+		}
+		rvp = rv
+		rv = rv.Elem()
+		goto PTR
+	}
+
+	if fn == nil {
+		fn = d.fn(rv.Type())
+	}
+	if fn.i.addrD {
+		if rvpValid {
+			rv = rvp
+		} else if rv.CanAddr() {
+			rv = rvAddr(rv, fn.i.ti.ptr)
+		} else if fn.i.addrDf {
+			halt.errorStr("cannot decode into a non-pointer value")
+		}
+	}
+	fn.fd(d, &fn.i, rv)
+}
+
+func (d *decoderJsonBytes) decodeAs(v interface{}, t reflect.Type, ext bool) {
+	if ext {
+		d.decodeValue(baseRV(v), d.fn(t))
+	} else {
+		d.decodeValue(baseRV(v), d.fnNoExt(t))
+	}
+}
+
+func (d *decoderJsonBytes) structFieldNotFound(index int, rvkencname string) {
+
+	if d.h.ErrorIfNoField {
+		if index >= 0 {
+			halt.errorInt("no matching struct field found when decoding stream array at index ", int64(index))
+		} else if rvkencname != "" {
+			halt.errorStr2("no matching struct field found when decoding stream map with key ", rvkencname)
+		}
+	}
+	d.swallow()
+}
+
+func (d *decoderJsonBytes) decodeBytesInto(out []byte, mustFit bool) (v []byte, state dBytesIntoState) {
+	v, att := d.d.DecodeBytes()
+	if cap(v) == 0 || (att >= dBytesAttachViewZerocopy && !mustFit) {
+
+		return
+	}
+	if len(v) == 0 {
+		v = zeroByteSlice
+		return
+	}
+	if len(out) == len(v) {
+		state = dBytesIntoParamOut
+	} else if cap(out) >= len(v) {
+		out = out[:len(v)]
+		state = dBytesIntoParamOutSlice
+	} else if mustFit {
+		halt.errorf("bytes capacity insufficient for decoded bytes: got/expected: %d/%d", len(v), len(out))
+	} else {
+		out = make([]byte, len(v))
+		state = dBytesIntoNew
+	}
+	copy(out, v)
+	v = out
+	return
+}
+
+func (d *decoderJsonBytes) rawBytes() (v []byte) {
+
+	v = d.d.nextValueBytes()
+	if d.bytes && !d.h.ZeroCopy {
+		vv := make([]byte, len(v))
+		copy(vv, v)
+		v = vv
+	}
+	return
+}
+
+func (d *decoderJsonBytes) wrapErr(v error, err *error) {
+	*err = wrapCodecErr(v, d.hh.Name(), d.d.NumBytesRead(), false)
+}
+
+func (d *decoderJsonBytes) NumBytesRead() int {
+	return d.d.NumBytesRead()
+}
+
+func (d *decoderJsonBytes) containerNext(j, containerLen int, hasLen bool) bool {
+
+	if hasLen {
+		return j < containerLen
+	}
+	return !d.d.CheckBreak()
+}
+
+func (d *decoderJsonBytes) mapElemKey(firstTime bool) {
+	d.d.ReadMapElemKey(firstTime)
+	d.c = containerMapKey
+}
+
+func (d *decoderJsonBytes) mapElemValue() {
+	d.d.ReadMapElemValue()
+	d.c = containerMapValue
+}
+
+func (d *decoderJsonBytes) mapEnd() {
+	d.d.ReadMapEnd()
+	d.depthDecr()
+	d.c = 0
+}
+
+func (d *decoderJsonBytes) arrayElem(firstTime bool) {
+	d.d.ReadArrayElem(firstTime)
+	d.c = containerArrayElem
+}
+
+func (d *decoderJsonBytes) arrayEnd() {
+	d.d.ReadArrayEnd()
+	d.depthDecr()
+	d.c = 0
+}
+
+func (d *decoderJsonBytes) interfaceExtConvertAndDecode(v interface{}, ext InterfaceExt) {
+
+	var vv interface{}
+	d.decode(&vv)
+	ext.UpdateExt(v, vv)
+
+}
+
+func (d *decoderJsonBytes) fn(t reflect.Type) *decFnJsonBytes {
+	return d.dh.decFnViaBH(t, d.rtidFn, d.h, d.fp, false)
+}
+
+func (d *decoderJsonBytes) fnNoExt(t reflect.Type) *decFnJsonBytes {
+	return d.dh.decFnViaBH(t, d.rtidFnNoExt, d.h, d.fp, true)
+}
+
+func (helperDecDriverJsonBytes) newDecoderBytes(in []byte, h Handle) *decoderJsonBytes {
+	var c1 decoderJsonBytes
+	c1.bytes = true
+	c1.init(h)
+	c1.ResetBytes(in)
+	return &c1
+}
+
+func (helperDecDriverJsonBytes) newDecoderIO(in io.Reader, h Handle) *decoderJsonBytes {
+	var c1 decoderJsonBytes
+	c1.init(h)
+	c1.Reset(in)
+	return &c1
+}
+
+func (helperDecDriverJsonBytes) decFnloadFastpathUnderlying(ti *typeInfo, fp *fastpathDsJsonBytes) (f *fastpathDJsonBytes, u reflect.Type) {
+	rtid := rt2id(ti.fastpathUnderlying)
+	idx, ok := fastpathAvIndex(rtid)
+	if !ok {
+		return
+	}
+	f = &fp[idx]
+	if uint8(reflect.Array) == ti.kind {
+		u = reflect.ArrayOf(ti.rt.Len(), ti.elem)
+	} else {
+		u = f.rt
+	}
+	return
+}
+
+func (helperDecDriverJsonBytes) decFindRtidFn(s []decRtidFnJsonBytes, rtid uintptr) (i uint, fn *decFnJsonBytes) {
+
+	var h uint
+	var j = uint(len(s))
+LOOP:
+	if i < j {
+		h = (i + j) >> 1
+		if s[h].rtid < rtid {
+			i = h + 1
+		} else {
+			j = h
+		}
+		goto LOOP
+	}
+	if i < uint(len(s)) && s[i].rtid == rtid {
+		fn = s[i].fn
+	}
+	return
+}
+
+func (helperDecDriverJsonBytes) decFromRtidFnSlice(fns *atomicRtidFnSlice) (s []decRtidFnJsonBytes) {
+	if v := fns.load(); v != nil {
+		s = *(lowLevelToPtr[[]decRtidFnJsonBytes](v))
+	}
+	return
+}
+
+func (dh helperDecDriverJsonBytes) decFnViaBH(rt reflect.Type, fns *atomicRtidFnSlice, x *BasicHandle, fp *fastpathDsJsonBytes,
+	checkExt bool) (fn *decFnJsonBytes) {
+	return dh.decFnVia(rt, fns, x.typeInfos(), &x.mu, x.extHandle, fp,
+		checkExt, x.CheckCircularRef, x.timeBuiltin, x.binaryHandle, x.jsonHandle)
+}
+
+func (dh helperDecDriverJsonBytes) decFnVia(rt reflect.Type, fns *atomicRtidFnSlice,
+	tinfos *TypeInfos, mu *sync.Mutex, exth extHandle, fp *fastpathDsJsonBytes,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *decFnJsonBytes) {
+	rtid := rt2id(rt)
+	var sp []decRtidFnJsonBytes = dh.decFromRtidFnSlice(fns)
+	if sp != nil {
+		_, fn = dh.decFindRtidFn(sp, rtid)
+	}
+	if fn == nil {
+		fn = dh.decFnViaLoader(rt, rtid, fns, tinfos, mu, exth, fp, checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json)
+	}
+	return
+}
+
+func (dh helperDecDriverJsonBytes) decFnViaLoader(rt reflect.Type, rtid uintptr, fns *atomicRtidFnSlice,
+	tinfos *TypeInfos, mu *sync.Mutex, exth extHandle, fp *fastpathDsJsonBytes,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *decFnJsonBytes) {
+
+	fn = dh.decFnLoad(rt, rtid, tinfos, exth, fp, checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json)
+	var sp []decRtidFnJsonBytes
+	mu.Lock()
+	sp = dh.decFromRtidFnSlice(fns)
+
+	if sp == nil {
+		sp = []decRtidFnJsonBytes{{rtid, fn}}
+		fns.store(ptrToLowLevel(&sp))
+	} else {
+		idx, fn2 := dh.decFindRtidFn(sp, rtid)
+		if fn2 == nil {
+			sp2 := make([]decRtidFnJsonBytes, len(sp)+1)
+			copy(sp2[idx+1:], sp[idx:])
+			copy(sp2, sp[:idx])
+			sp2[idx] = decRtidFnJsonBytes{rtid, fn}
+			fns.store(ptrToLowLevel(&sp2))
+		}
+	}
+	mu.Unlock()
+	return
+}
+
+func (dh helperDecDriverJsonBytes) decFnLoad(rt reflect.Type, rtid uintptr, tinfos *TypeInfos,
+	exth extHandle, fp *fastpathDsJsonBytes,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *decFnJsonBytes) {
+	fn = new(decFnJsonBytes)
+	fi := &(fn.i)
+	ti := tinfos.get(rtid, rt)
+	fi.ti = ti
+	rk := reflect.Kind(ti.kind)
+
+	fi.addrDf = true
+
+	if rtid == timeTypId && timeBuiltin {
+		fn.fd = (*decoderJsonBytes).kTime
+	} else if rtid == rawTypId {
+		fn.fd = (*decoderJsonBytes).raw
+	} else if rtid == rawExtTypId {
+		fn.fd = (*decoderJsonBytes).rawExt
+		fi.addrD = true
+	} else if xfFn := exth.getExt(rtid, checkExt); xfFn != nil {
+		fi.xfTag, fi.xfFn = xfFn.tag, xfFn.ext
+		fn.fd = (*decoderJsonBytes).ext
+		fi.addrD = true
+	} else if ti.flagSelfer || ti.flagSelferPtr {
+		fn.fd = (*decoderJsonBytes).selferUnmarshal
+		fi.addrD = ti.flagSelferPtr
+	} else if supportMarshalInterfaces && binaryEncoding &&
+		(ti.flagBinaryMarshaler || ti.flagBinaryMarshalerPtr) &&
+		(ti.flagBinaryUnmarshaler || ti.flagBinaryUnmarshalerPtr) {
+		fn.fd = (*decoderJsonBytes).binaryUnmarshal
+		fi.addrD = ti.flagBinaryUnmarshalerPtr
+	} else if supportMarshalInterfaces && !binaryEncoding && json &&
+		(ti.flagJsonMarshaler || ti.flagJsonMarshalerPtr) &&
+		(ti.flagJsonUnmarshaler || ti.flagJsonUnmarshalerPtr) {
+
+		fn.fd = (*decoderJsonBytes).jsonUnmarshal
+		fi.addrD = ti.flagJsonUnmarshalerPtr
+	} else if supportMarshalInterfaces && !binaryEncoding &&
+		(ti.flagTextMarshaler || ti.flagTextMarshalerPtr) &&
+		(ti.flagTextUnmarshaler || ti.flagTextUnmarshalerPtr) {
+		fn.fd = (*decoderJsonBytes).textUnmarshal
+		fi.addrD = ti.flagTextUnmarshalerPtr
+	} else {
+		if fastpathEnabled && (rk == reflect.Map || rk == reflect.Slice || rk == reflect.Array) {
+			var rtid2 uintptr
+			if !ti.flagHasPkgPath {
+				rtid2 = rtid
+				if rk == reflect.Array {
+					rtid2 = rt2id(ti.key)
+				}
+				if idx, ok := fastpathAvIndex(rtid2); ok {
+					fn.fd = fp[idx].decfn
+					fi.addrD = true
+					fi.addrDf = false
+					if rk == reflect.Array {
+						fi.addrD = false
+					}
+				}
+			} else {
+
+				xfe, xrt := dh.decFnloadFastpathUnderlying(ti, fp)
+				if xfe != nil {
+					xfnf2 := xfe.decfn
+					if rk == reflect.Array {
+						fi.addrD = false
+						fn.fd = func(d *decoderJsonBytes, xf *decFnInfo, xrv reflect.Value) {
+							xfnf2(d, xf, rvConvert(xrv, xrt))
+						}
+					} else {
+						fi.addrD = true
+						fi.addrDf = false
+						xptr2rt := reflect.PointerTo(xrt)
+						fn.fd = func(d *decoderJsonBytes, xf *decFnInfo, xrv reflect.Value) {
+							if xrv.Kind() == reflect.Ptr {
+								xfnf2(d, xf, rvConvert(xrv, xptr2rt))
+							} else {
+								xfnf2(d, xf, rvConvert(xrv, xrt))
+							}
+						}
+					}
+				}
+			}
+		}
+		if fn.fd == nil {
+			switch rk {
+			case reflect.Bool:
+				fn.fd = (*decoderJsonBytes).kBool
+			case reflect.String:
+				fn.fd = (*decoderJsonBytes).kString
+			case reflect.Int:
+				fn.fd = (*decoderJsonBytes).kInt
+			case reflect.Int8:
+				fn.fd = (*decoderJsonBytes).kInt8
+			case reflect.Int16:
+				fn.fd = (*decoderJsonBytes).kInt16
+			case reflect.Int32:
+				fn.fd = (*decoderJsonBytes).kInt32
+			case reflect.Int64:
+				fn.fd = (*decoderJsonBytes).kInt64
+			case reflect.Uint:
+				fn.fd = (*decoderJsonBytes).kUint
+			case reflect.Uint8:
+				fn.fd = (*decoderJsonBytes).kUint8
+			case reflect.Uint16:
+				fn.fd = (*decoderJsonBytes).kUint16
+			case reflect.Uint32:
+				fn.fd = (*decoderJsonBytes).kUint32
+			case reflect.Uint64:
+				fn.fd = (*decoderJsonBytes).kUint64
+			case reflect.Uintptr:
+				fn.fd = (*decoderJsonBytes).kUintptr
+			case reflect.Float32:
+				fn.fd = (*decoderJsonBytes).kFloat32
+			case reflect.Float64:
+				fn.fd = (*decoderJsonBytes).kFloat64
+			case reflect.Complex64:
+				fn.fd = (*decoderJsonBytes).kComplex64
+			case reflect.Complex128:
+				fn.fd = (*decoderJsonBytes).kComplex128
+			case reflect.Chan:
+				fn.fd = (*decoderJsonBytes).kChan
+			case reflect.Slice:
+				fn.fd = (*decoderJsonBytes).kSlice
+			case reflect.Array:
+				fi.addrD = false
+				fn.fd = (*decoderJsonBytes).kArray
+			case reflect.Struct:
+				if ti.simple {
+					fn.fd = (*decoderJsonBytes).kStructSimple
+				} else {
+					fn.fd = (*decoderJsonBytes).kStruct
+				}
+			case reflect.Map:
+				fn.fd = (*decoderJsonBytes).kMap
+			case reflect.Interface:
+
+				fn.fd = (*decoderJsonBytes).kInterface
+			default:
+
+				fn.fd = (*decoderJsonBytes).kErr
+			}
+		}
+	}
+	return
+}
+func (e *jsonEncDriverBytes) writeIndent() {
+	e.w.writen1('\n')
+	x := int(e.di) * int(e.dl)
+	if e.di < 0 {
+		x = -x
+		for x > len(jsonTabs) {
+			e.w.writeb(jsonTabs[:])
+			x -= len(jsonTabs)
+		}
+		e.w.writeb(jsonTabs[:x])
+	} else {
+		for x > len(jsonSpaces) {
+			e.w.writeb(jsonSpaces[:])
+			x -= len(jsonSpaces)
+		}
+		e.w.writeb(jsonSpaces[:x])
+	}
+}
+
+func (e *jsonEncDriverBytes) WriteArrayElem(firstTime bool) {
+	if !firstTime {
+		e.w.writen1(',')
+	}
+	if e.d {
+		e.writeIndent()
+	}
+}
+
+func (e *jsonEncDriverBytes) WriteMapElemKey(firstTime bool) {
+	if !firstTime {
+		e.w.writen1(',')
+	}
+	if e.d {
+		e.writeIndent()
+	}
+}
+
+func (e *jsonEncDriverBytes) WriteMapElemValue() {
+	if e.d {
+		e.w.writen2(':', ' ')
+	} else {
+		e.w.writen1(':')
+	}
+}
+
+func (e *jsonEncDriverBytes) EncodeNil() {
+
+	e.w.writeb(jsonNull)
+}
+
+func (e *jsonEncDriverBytes) encodeIntAsUint(v int64, quotes bool) {
+	neg := v < 0
+	if neg {
+		v = -v
+	}
+	e.encodeUint(neg, quotes, uint64(v))
+}
+
+func (e *jsonEncDriverBytes) EncodeTime(t time.Time) {
+
+	if t.IsZero() {
+		e.EncodeNil()
+		return
+	}
+	switch e.timeFmt {
+	case jsonTimeFmtStringLayout:
+		e.b[0] = '"'
+		b := t.AppendFormat(e.b[1:1], e.timeFmtLayout)
+		e.b[len(b)+1] = '"'
+		e.w.writeb(e.b[:len(b)+2])
+	case jsonTimeFmtUnix:
+		e.encodeIntAsUint(t.Unix(), false)
+	case jsonTimeFmtUnixMilli:
+		e.encodeIntAsUint(t.UnixMilli(), false)
+	case jsonTimeFmtUnixMicro:
+		e.encodeIntAsUint(t.UnixMicro(), false)
+	case jsonTimeFmtUnixNano:
+		e.encodeIntAsUint(t.UnixNano(), false)
+	}
+}
+
+func (e *jsonEncDriverBytes) EncodeExt(rv interface{}, basetype reflect.Type, xtag uint64, ext Ext) {
+	if ext == SelfExt {
+		e.enc.encodeAs(rv, basetype, false)
+	} else if v := ext.ConvertExt(rv); v == nil {
+		e.writeNilBytes()
+	} else {
+		e.enc.encodeI(v)
+	}
+}
+
+func (e *jsonEncDriverBytes) EncodeRawExt(re *RawExt) {
+	if re.Data != nil {
+		e.w.writeb(re.Data)
+	} else if re.Value != nil {
+		e.enc.encodeI(re.Value)
+	} else {
+		e.EncodeNil()
+	}
+}
+
+func (e *jsonEncDriverBytes) EncodeBool(b bool) {
+	e.w.writestr(jsonEncBoolStrs[bool2int(e.ks && e.e.c == containerMapKey)%2][bool2int(b)%2])
+}
+
+func (e *jsonEncDriverBytes) encodeFloat(f float64, bitsize, fmt byte, prec int8) {
+	var blen uint
+	if e.ks && e.e.c == containerMapKey {
+		blen = 2 + uint(len(strconv.AppendFloat(e.b[1:1], f, fmt, int(prec), int(bitsize))))
+
+		e.b[0] = '"'
+		e.b[blen-1] = '"'
+		e.w.writeb(e.b[:blen])
+	} else {
+		e.w.writeb(strconv.AppendFloat(e.b[:0], f, fmt, int(prec), int(bitsize)))
+	}
+}
+
+func (e *jsonEncDriverBytes) EncodeFloat64(f float64) {
+	if math.IsNaN(f) || math.IsInf(f, 0) {
+		e.EncodeNil()
+		return
+	}
+	fmt, prec := jsonFloatStrconvFmtPrec64(f)
+	e.encodeFloat(f, 64, fmt, prec)
+}
+
+func (e *jsonEncDriverBytes) EncodeFloat32(f float32) {
+	if math.IsNaN(float64(f)) || math.IsInf(float64(f), 0) {
+		e.EncodeNil()
+		return
+	}
+	fmt, prec := jsonFloatStrconvFmtPrec32(f)
+	e.encodeFloat(float64(f), 32, fmt, prec)
+}
+
+func (e *jsonEncDriverBytes) encodeUint(neg bool, quotes bool, u uint64) {
+	e.w.writeb(jsonEncodeUint(neg, quotes, u, &e.b))
+}
+
+func (e *jsonEncDriverBytes) EncodeInt(v int64) {
+	quotes := e.is == 'A' || e.is == 'L' && (v > 1<<53 || v < -(1<<53)) ||
+		(e.ks && e.e.c == containerMapKey)
+
+	if cpu32Bit {
+		if quotes {
+			blen := 2 + len(strconv.AppendInt(e.b[1:1], v, 10))
+			e.b[0] = '"'
+			e.b[blen-1] = '"'
+			e.w.writeb(e.b[:blen])
+		} else {
+			e.w.writeb(strconv.AppendInt(e.b[:0], v, 10))
+		}
+		return
+	}
+
+	if v < 0 {
+		e.encodeUint(true, quotes, uint64(-v))
+	} else {
+		e.encodeUint(false, quotes, uint64(v))
+	}
+}
+
+func (e *jsonEncDriverBytes) EncodeUint(v uint64) {
+	quotes := e.is == 'A' || e.is == 'L' && v > 1<<53 ||
+		(e.ks && e.e.c == containerMapKey)
+
+	if cpu32Bit {
+
+		if quotes {
+			blen := 2 + len(strconv.AppendUint(e.b[1:1], v, 10))
+			e.b[0] = '"'
+			e.b[blen-1] = '"'
+			e.w.writeb(e.b[:blen])
+		} else {
+			e.w.writeb(strconv.AppendUint(e.b[:0], v, 10))
+		}
+		return
+	}
+
+	e.encodeUint(false, quotes, v)
+}
+
+func (e *jsonEncDriverBytes) EncodeString(v string) {
+	if e.h.StringToRaw {
+		e.EncodeStringBytesRaw(bytesView(v))
+		return
+	}
+	e.quoteStr(v)
+}
+
+func (e *jsonEncDriverBytes) EncodeStringNoEscape4Json(v string) { e.w.writeqstr(v) }
+
+func (e *jsonEncDriverBytes) EncodeStringBytesRaw(v []byte) {
+	if e.rawext {
+
+		iv := e.h.RawBytesExt.ConvertExt(any(v))
+		if iv == nil {
+			e.EncodeNil()
+		} else {
+			e.enc.encodeI(iv)
+		}
+		return
+	}
+
+	if e.bytesFmt == jsonBytesFmtArray {
+		e.WriteArrayStart(len(v))
+		for j := range v {
+			e.WriteArrayElem(j == 0)
+			e.encodeUint(false, false, uint64(v[j]))
+		}
+		e.WriteArrayEnd()
+		return
+	}
+
+	var slen int
+	if e.bytesFmt == jsonBytesFmtBase64 {
+		slen = base64.StdEncoding.EncodedLen(len(v))
+	} else {
+		slen = e.byteFmter.EncodedLen(len(v))
+	}
+	slen += 2
+
+	bs := e.e.blist.peek(slen, false)[:slen]
+
+	if e.bytesFmt == jsonBytesFmtBase64 {
+		base64.StdEncoding.Encode(bs[1:], v)
+	} else {
+		e.byteFmter.Encode(bs[1:], v)
+	}
+
+	bs[len(bs)-1] = '"'
+	bs[0] = '"'
+	e.w.writeb(bs)
+}
+
+func (e *jsonEncDriverBytes) EncodeBytes(v []byte) {
+	if v == nil {
+		e.writeNilBytes()
+		return
+	}
+	e.EncodeStringBytesRaw(v)
+}
+
+func (e *jsonEncDriverBytes) writeNilOr(v []byte) {
+	if !e.h.NilCollectionToZeroLength {
+		v = jsonNull
+	}
+	e.w.writeb(v)
+}
+
+func (e *jsonEncDriverBytes) writeNilBytes() {
+	e.writeNilOr(jsonArrayEmpty)
+}
+
+func (e *jsonEncDriverBytes) writeNilArray() {
+	e.writeNilOr(jsonArrayEmpty)
+}
+
+func (e *jsonEncDriverBytes) writeNilMap() {
+	e.writeNilOr(jsonMapEmpty)
+}
+
+func (e *jsonEncDriverBytes) WriteArrayEmpty() {
+	e.w.writen2('[', ']')
+}
+
+func (e *jsonEncDriverBytes) WriteMapEmpty() {
+	e.w.writen2('{', '}')
+}
+
+func (e *jsonEncDriverBytes) WriteArrayStart(length int) {
+	if e.d {
+		e.dl++
+	}
+	e.w.writen1('[')
+}
+
+func (e *jsonEncDriverBytes) WriteArrayEnd() {
+	if e.d {
+		e.dl--
+
+		e.writeIndent()
+	}
+	e.w.writen1(']')
+}
+
+func (e *jsonEncDriverBytes) WriteMapStart(length int) {
+	if e.d {
+		e.dl++
+	}
+	e.w.writen1('{')
+}
+
+func (e *jsonEncDriverBytes) WriteMapEnd() {
+	if e.d {
+		e.dl--
+
+		e.writeIndent()
+	}
+	e.w.writen1('}')
+}
+
+func (e *jsonEncDriverBytes) quoteStr(s string) {
+
+	const hex = "0123456789abcdef"
+	e.w.writen1('"')
+	var i, start uint
+	for i < uint(len(s)) {
+
+		b := s[i]
+		if e.s.isset(b) {
+			i++
+			continue
+		}
+		if b < utf8.RuneSelf {
+			if start < i {
+				e.w.writestr(s[start:i])
+			}
+			switch b {
+			case '\\':
+				e.w.writen2('\\', '\\')
+			case '"':
+				e.w.writen2('\\', '"')
+			case '\n':
+				e.w.writen2('\\', 'n')
+			case '\t':
+				e.w.writen2('\\', 't')
+			case '\r':
+				e.w.writen2('\\', 'r')
+			case '\b':
+				e.w.writen2('\\', 'b')
+			case '\f':
+				e.w.writen2('\\', 'f')
+			default:
+				e.w.writestr(`\u00`)
+				e.w.writen2(hex[b>>4], hex[b&0xF])
+			}
+			i++
+			start = i
+			continue
+		}
+		c, size := utf8.DecodeRuneInString(s[i:])
+		if c == utf8.RuneError && size == 1 {
+			if start < i {
+				e.w.writestr(s[start:i])
+			}
+			e.w.writestr(`\uFFFD`)
+			i++
+			start = i
+			continue
+		}
+
+		if jsonEscapeMultiByteUnicodeSep && (c == '\u2028' || c == '\u2029') {
+			if start < i {
+				e.w.writestr(s[start:i])
+			}
+			e.w.writestr(`\u202`)
+			e.w.writen1(hex[c&0xF])
+			i += uint(size)
+			start = i
+			continue
+		}
+		i += uint(size)
+	}
+	if start < uint(len(s)) {
+		e.w.writestr(s[start:])
+	}
+	e.w.writen1('"')
+}
+
+func (e *jsonEncDriverBytes) atEndOfEncode() {
+	if e.h.TermWhitespace {
+		var c byte = ' '
+		if e.e.c != 0 {
+			c = '\n'
+		}
+		e.w.writen1(c)
+	}
+}
+
+func (d *jsonDecDriverBytes) ReadMapStart() int {
+	d.advance()
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return containerLenNil
+	}
+	if d.tok != '{' {
+		halt.errorByte("read map - expect char '{' but got char: ", d.tok)
+	}
+	d.tok = 0
+	return containerLenUnknown
+}
+
+func (d *jsonDecDriverBytes) ReadArrayStart() int {
+	d.advance()
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return containerLenNil
+	}
+	if d.tok != '[' {
+		halt.errorByte("read array - expect char '[' but got char ", d.tok)
+	}
+	d.tok = 0
+	return containerLenUnknown
+}
+
+func (d *jsonDecDriverBytes) CheckBreak() bool {
+	d.advance()
+	return d.tok == '}' || d.tok == ']'
+}
+
+func (d *jsonDecDriverBytes) checkSep(xc byte) {
+	d.advance()
+	if d.tok != xc {
+		d.readDelimError(xc)
+	}
+	d.tok = 0
+}
+
+func (d *jsonDecDriverBytes) ReadArrayElem(firstTime bool) {
+	if !firstTime {
+		d.checkSep(',')
+	}
+}
+
+func (d *jsonDecDriverBytes) ReadArrayEnd() {
+	d.checkSep(']')
+}
+
+func (d *jsonDecDriverBytes) ReadMapElemKey(firstTime bool) {
+	d.ReadArrayElem(firstTime)
+}
+
+func (d *jsonDecDriverBytes) ReadMapElemValue() {
+	d.checkSep(':')
+}
+
+func (d *jsonDecDriverBytes) ReadMapEnd() {
+	d.checkSep('}')
+}
+
+func (d *jsonDecDriverBytes) readDelimError(xc uint8) {
+	halt.errorf("read json delimiter - expect char '%c' but got char '%c'", xc, d.tok)
+}
+
+func (d *jsonDecDriverBytes) checkLit3(got, expect [3]byte) {
+	if jsonValidateSymbols && got != expect {
+		jsonCheckLitErr3(got, expect)
+	}
+	d.tok = 0
+}
+
+func (d *jsonDecDriverBytes) checkLit4(got, expect [4]byte) {
+	if jsonValidateSymbols && got != expect {
+		jsonCheckLitErr4(got, expect)
+	}
+	d.tok = 0
+}
+
+func (d *jsonDecDriverBytes) skipWhitespace() {
+	d.tok = d.r.skipWhitespace()
+}
+
+func (d *jsonDecDriverBytes) advance() {
+
+	if d.tok < 33 {
+		d.skipWhitespace()
+	}
+}
+
+func (d *jsonDecDriverBytes) nextValueBytes() []byte {
+	consumeString := func() {
+	TOP:
+		_, c := d.r.jsonReadAsisChars()
+		if c == '\\' {
+			d.r.readn1()
+			goto TOP
+		}
+	}
+
+	d.advance()
+	d.r.startRecording()
+
+	switch d.tok {
+	default:
+		_, d.tok = d.r.jsonReadNum()
+	case 'n':
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+	case 'f':
+		d.checkLit4([4]byte{'a', 'l', 's', 'e'}, d.r.readn4())
+	case 't':
+		d.checkLit3([3]byte{'r', 'u', 'e'}, d.r.readn3())
+	case '"':
+		consumeString()
+		d.tok = 0
+	case '{', '[':
+		var elem struct{}
+		var stack []struct{}
+
+		stack = append(stack, elem)
+
+		for len(stack) != 0 {
+			c := d.r.readn1()
+			switch c {
+			case '"':
+				consumeString()
+			case '{', '[':
+				stack = append(stack, elem)
+			case '}', ']':
+				stack = stack[:len(stack)-1]
+			}
+		}
+		d.tok = 0
+	}
+	return d.r.stopRecording()
+}
+
+func (d *jsonDecDriverBytes) TryNil() bool {
+	d.advance()
+
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return true
+	}
+	return false
+}
+
+func (d *jsonDecDriverBytes) DecodeBool() (v bool) {
+	d.advance()
+
+	fquot := d.d.c == containerMapKey && d.tok == '"'
+	if fquot {
+		d.tok = d.r.readn1()
+	}
+	switch d.tok {
+	case 'f':
+		d.checkLit4([4]byte{'a', 'l', 's', 'e'}, d.r.readn4())
+
+	case 't':
+		d.checkLit3([3]byte{'r', 'u', 'e'}, d.r.readn3())
+		v = true
+	case 'n':
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+
+	default:
+		halt.errorByte("decode bool: got first char: ", d.tok)
+
+	}
+	if fquot {
+		d.r.readn1()
+	}
+	return
+}
+
+func (d *jsonDecDriverBytes) DecodeTime() (t time.Time) {
+
+	d.advance()
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return
+	}
+	var bs []byte
+
+	if d.tok != '"' {
+		bs, d.tok = d.r.jsonReadNum()
+		i := d.parseInt64(bs)
+		switch d.timeFmtNum {
+		case jsonTimeFmtUnix:
+			t = time.Unix(i, 0)
+		case jsonTimeFmtUnixMilli:
+			t = time.UnixMilli(i)
+		case jsonTimeFmtUnixMicro:
+			t = time.UnixMicro(i)
+		case jsonTimeFmtUnixNano:
+			t = time.Unix(0, i)
+		default:
+			halt.errorStr("invalid timeFmtNum")
+		}
+		return
+	}
+
+	bs = d.readUnescapedString()
+	var err error
+	for _, v := range d.timeFmtLayouts {
+		t, err = time.Parse(v, stringView(bs))
+		if err == nil {
+			return
+		}
+	}
+	halt.errorStr("error decoding time")
+	return
+}
+
+func (d *jsonDecDriverBytes) ContainerType() (vt valueType) {
+
+	d.advance()
+
+	if d.tok == '{' {
+		return valueTypeMap
+	} else if d.tok == '[' {
+		return valueTypeArray
+	} else if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return valueTypeNil
+	} else if d.tok == '"' {
+		return valueTypeString
+	}
+	return valueTypeUnset
+}
+
+func (d *jsonDecDriverBytes) decNumBytes() (bs []byte) {
+	d.advance()
+	if d.tok == '"' {
+		bs = d.r.jsonReadUntilDblQuote()
+		d.tok = 0
+	} else if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+	} else {
+		bs, d.tok = d.r.jsonReadNum()
+	}
+	return
+}
+
+func (d *jsonDecDriverBytes) DecodeUint64() (u uint64) {
+	b := d.decNumBytes()
+	u, neg, ok := parseInteger_bytes(b)
+	if neg {
+		halt.errorf("negative number cannot be decoded as uint64: %s", any(b))
+	}
+	if !ok {
+		halt.onerror(strconvParseErr(b, "ParseUint"))
+	}
+	return
+}
+
+func (d *jsonDecDriverBytes) DecodeInt64() (v int64) {
+	return d.parseInt64(d.decNumBytes())
+}
+
+func (d *jsonDecDriverBytes) parseInt64(b []byte) (v int64) {
+	u, neg, ok := parseInteger_bytes(b)
+	if !ok {
+		halt.onerror(strconvParseErr(b, "ParseInt"))
+	}
+	if chkOvf.Uint2Int(u, neg) {
+		halt.errorBytes("overflow decoding number from ", b)
+	}
+	if neg {
+		v = -int64(u)
+	} else {
+		v = int64(u)
+	}
+	return
+}
+
+func (d *jsonDecDriverBytes) DecodeFloat64() (f float64) {
+	var err error
+	bs := d.decNumBytes()
+	if len(bs) == 0 {
+		return
+	}
+	f, err = parseFloat64(bs)
+	halt.onerror(err)
+	return
+}
+
+func (d *jsonDecDriverBytes) DecodeFloat32() (f float32) {
+	var err error
+	bs := d.decNumBytes()
+	if len(bs) == 0 {
+		return
+	}
+	f, err = parseFloat32(bs)
+	halt.onerror(err)
+	return
+}
+
+func (d *jsonDecDriverBytes) advanceNil() (ok bool) {
+	d.advance()
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return true
+	}
+	return false
+}
+
+func (d *jsonDecDriverBytes) DecodeExt(rv interface{}, basetype reflect.Type, xtag uint64, ext Ext) {
+	if d.advanceNil() {
+		return
+	}
+	if ext == SelfExt {
+		d.dec.decodeAs(rv, basetype, false)
+	} else {
+		d.dec.interfaceExtConvertAndDecode(rv, ext)
+	}
+}
+
+func (d *jsonDecDriverBytes) DecodeRawExt(re *RawExt) {
+	if d.advanceNil() {
+		return
+	}
+	d.dec.decode(&re.Value)
+}
+
+func (d *jsonDecDriverBytes) decBytesFromArray(bs []byte) []byte {
+	d.advance()
+	if d.tok != ']' {
+		bs = append(bs, uint8(d.DecodeUint64()))
+		d.advance()
+	}
+	for d.tok != ']' {
+		if d.tok != ',' {
+			halt.errorByte("read array element - expect char ',' but got char: ", d.tok)
+		}
+		d.tok = 0
+		bs = append(bs, uint8(chkOvf.UintV(d.DecodeUint64(), 8)))
+		d.advance()
+	}
+	d.tok = 0
+	return bs
+}
+
+func (d *jsonDecDriverBytes) DecodeBytes() (bs []byte, state dBytesAttachState) {
+	d.advance()
+	state = dBytesDetach
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return
+	}
+	state = dBytesAttachBuffer
+
+	if d.rawext {
+		d.buf = d.buf[:0]
+		d.dec.interfaceExtConvertAndDecode(&d.buf, d.h.RawBytesExt)
+		bs = d.buf
+		return
+	}
+
+	if d.tok == '[' {
+		d.tok = 0
+
+		bs = d.decBytesFromArray(d.buf[:0])
+		d.buf = bs
+		return
+	}
+
+	d.ensureReadingString()
+	bs1 := d.readUnescapedString()
+
+	slen := base64.StdEncoding.DecodedLen(len(bs1))
+	if slen == 0 {
+		bs = zeroByteSlice
+		state = dBytesDetach
+	} else if slen <= cap(d.buf) {
+		bs = d.buf[:slen]
+	} else {
+		d.buf = d.d.blist.putGet(d.buf, slen)[:slen]
+		bs = d.buf
+	}
+	var err error
+	for _, v := range d.byteFmters {
+
+		slen, err = v.Decode(bs, bs1)
+		if err == nil {
+			bs = bs[:slen]
+			return
+		}
+	}
+	halt.errorf("error decoding byte string '%s': %v", any(bs1), err)
+	return
+}
+
+func (d *jsonDecDriverBytes) DecodeStringAsBytes() (bs []byte, state dBytesAttachState) {
+	d.advance()
+
+	var cond bool
+
+	if d.tok == '"' {
+		d.tok = 0
+		bs, cond = d.dblQuoteStringAsBytes()
+		state = d.d.attachState(cond)
+		return
+	}
+
+	state = dBytesDetach
+
+	switch d.tok {
+	case 'n':
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+
+	case 'f':
+		d.checkLit4([4]byte{'a', 'l', 's', 'e'}, d.r.readn4())
+		bs = jsonLitb[jsonLitF : jsonLitF+5]
+	case 't':
+		d.checkLit3([3]byte{'r', 'u', 'e'}, d.r.readn3())
+		bs = jsonLitb[jsonLitT : jsonLitT+4]
+	default:
+
+		bs, d.tok = d.r.jsonReadNum()
+		state = d.d.attachState(!d.d.bytes)
+	}
+	return
+}
+
+func (d *jsonDecDriverBytes) ensureReadingString() {
+	if d.tok != '"' {
+		halt.errorByte("expecting string starting with '\"'; got ", d.tok)
+	}
+}
+
+func (d *jsonDecDriverBytes) readUnescapedString() (bs []byte) {
+
+	bs = d.r.jsonReadUntilDblQuote()
+	d.tok = 0
+	return
+}
+
+func (d *jsonDecDriverBytes) dblQuoteStringAsBytes() (buf []byte, usingBuf bool) {
+	bs, c := d.r.jsonReadAsisChars()
+	if c == '"' {
+		return bs, !d.d.bytes
+	}
+	buf = append(d.buf[:0], bs...)
+
+	checkUtf8 := d.h.ValidateUnicode
+	usingBuf = true
+
+	for {
+
+		c = d.r.readn1()
+
+		switch c {
+		case '"', '\\', '/', '\'':
+			buf = append(buf, c)
+		case 'b':
+			buf = append(buf, '\b')
+		case 'f':
+			buf = append(buf, '\f')
+		case 'n':
+			buf = append(buf, '\n')
+		case 'r':
+			buf = append(buf, '\r')
+		case 't':
+			buf = append(buf, '\t')
+		case 'u':
+			rr := d.appendStringAsBytesSlashU()
+			if checkUtf8 && rr == unicode.ReplacementChar {
+				d.buf = buf
+				halt.errorBytes("invalid UTF-8 character found after: ", buf)
+			}
+			buf = append(buf, d.bstr[:utf8.EncodeRune(d.bstr[:], rr)]...)
+		default:
+			d.buf = buf
+			halt.errorByte("unsupported escaped value: ", c)
+		}
+
+		bs, c = d.r.jsonReadAsisChars()
+		buf = append(buf, bs...)
+		if c == '"' {
+			break
+		}
+	}
+	d.buf = buf
+	return
+}
+
+func (d *jsonDecDriverBytes) appendStringAsBytesSlashU() (r rune) {
+	var rr uint32
+	cs := d.r.readn4()
+	if rr = jsonSlashURune(cs); rr == unicode.ReplacementChar {
+		return unicode.ReplacementChar
+	}
+	r = rune(rr)
+	if utf16.IsSurrogate(r) {
+		csu := d.r.readn2()
+		cs = d.r.readn4()
+		if csu[0] == '\\' && csu[1] == 'u' {
+			if rr = jsonSlashURune(cs); rr == unicode.ReplacementChar {
+				return unicode.ReplacementChar
+			}
+			return utf16.DecodeRune(r, rune(rr))
+		}
+		return unicode.ReplacementChar
+	}
+	return
+}
+
+func (d *jsonDecDriverBytes) DecodeNaked() {
+	z := d.d.naked()
+
+	d.advance()
+	var bs []byte
+	var err error
+	switch d.tok {
+	case 'n':
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		z.v = valueTypeNil
+	case 'f':
+		d.checkLit4([4]byte{'a', 'l', 's', 'e'}, d.r.readn4())
+		z.v = valueTypeBool
+		z.b = false
+	case 't':
+		d.checkLit3([3]byte{'r', 'u', 'e'}, d.r.readn3())
+		z.v = valueTypeBool
+		z.b = true
+	case '{':
+		z.v = valueTypeMap
+	case '[':
+		z.v = valueTypeArray
+	case '"':
+
+		d.tok = 0
+		bs, z.b = d.dblQuoteStringAsBytes()
+		att := d.d.attachState(z.b)
+		if jsonNakedBoolNumInQuotedStr &&
+			d.h.MapKeyAsString && len(bs) > 0 && d.d.c == containerMapKey {
+			switch string(bs) {
+
+			case "true":
+				z.v = valueTypeBool
+				z.b = true
+			case "false":
+				z.v = valueTypeBool
+				z.b = false
+			default:
+				if err = jsonNakedNum(z, bs, d.h.PreferFloat, d.h.SignedInteger); err != nil {
+					z.v = valueTypeString
+					z.s = d.d.detach2Str(bs, att)
+				}
+			}
+		} else {
+			z.v = valueTypeString
+			z.s = d.d.detach2Str(bs, att)
+		}
+	default:
+		bs, d.tok = d.r.jsonReadNum()
+		if len(bs) == 0 {
+			halt.errorStr("decode number from empty string")
+		}
+		if err = jsonNakedNum(z, bs, d.h.PreferFloat, d.h.SignedInteger); err != nil {
+			halt.errorf("decode number from %s: %v", any(bs), err)
+		}
+	}
+}
+
+func (e *jsonEncDriverBytes) reset() {
+	e.dl = 0
+
+	e.typical = e.h.typical()
+	if e.h.HTMLCharsAsIs {
+		e.s = &jsonCharSafeBitset
+	} else {
+		e.s = &jsonCharHtmlSafeBitset
+	}
+	e.di = int8(e.h.Indent)
+	e.d = e.h.Indent != 0
+	e.ks = e.h.MapKeyAsString
+	e.is = e.h.IntegerAsString
+
+	var ho jsonHandleOpts
+	ho.reset(e.h)
+	e.timeFmt = ho.timeFmt
+	e.bytesFmt = ho.bytesFmt
+	e.timeFmtLayout = ""
+	e.byteFmter = nil
+	if len(ho.timeFmtLayouts) > 0 {
+		e.timeFmtLayout = ho.timeFmtLayouts[0]
+	}
+	if len(ho.byteFmters) > 0 {
+		e.byteFmter = ho.byteFmters[0]
+	}
+	e.rawext = ho.rawext
+}
+
+func (d *jsonDecDriverBytes) reset() {
+	d.buf = d.d.blist.check(d.buf, 256)
+	d.tok = 0
+
+	d.jsonHandleOpts.reset(d.h)
+}
+
+func (d *jsonEncDriverBytes) init(hh Handle, shared *encoderBase, enc encoderI) (fp interface{}) {
+	callMake(&d.w)
+	d.h = hh.(*JsonHandle)
+	d.e = shared
+	if shared.bytes {
+		fp = jsonFpEncBytes
+	} else {
+		fp = jsonFpEncIO
+	}
+
+	d.init2(enc)
+	return
+}
+
+func (e *jsonEncDriverBytes) writeBytesAsis(b []byte) { e.w.writeb(b) }
+
+func (e *jsonEncDriverBytes) writerEnd() { e.w.end() }
+
+func (e *jsonEncDriverBytes) resetOutBytes(out *[]byte) {
+	e.w.resetBytes(*out, out)
+}
+
+func (e *jsonEncDriverBytes) resetOutIO(out io.Writer) {
+	e.w.resetIO(out, e.h.WriterBufferSize, &e.e.blist)
+}
+
+func (d *jsonDecDriverBytes) init(hh Handle, shared *decoderBase, dec decoderI) (fp interface{}) {
+	callMake(&d.r)
+	d.h = hh.(*JsonHandle)
+	d.d = shared
+	if shared.bytes {
+		fp = jsonFpDecBytes
+	} else {
+		fp = jsonFpDecIO
+	}
+
+	d.init2(dec)
+	return
+}
+
+func (d *jsonDecDriverBytes) NumBytesRead() int {
+	return int(d.r.numread())
+}
+
+func (d *jsonDecDriverBytes) resetInBytes(in []byte) {
+	d.r.resetBytes(in)
+}
+
+func (d *jsonDecDriverBytes) resetInIO(r io.Reader) {
+	d.r.resetIO(r, d.h.ReaderBufferSize, d.h.MaxInitLen, &d.d.blist)
+}
+
+func (d *jsonDecDriverBytes) descBd() (s string) {
+	halt.onerror(errJsonNoBd)
+	return
+}
+
+func (d *jsonEncDriverBytes) init2(enc encoderI) {
+	d.enc = enc
+
+}
+
+func (d *jsonDecDriverBytes) init2(dec decoderI) {
+	d.dec = dec
+
+	d.buf = d.buf[:0]
+
+	d.d.jsms = d.h.MapKeyAsString
+}
+
+type helperEncDriverJsonIO struct{}
+type encFnJsonIO struct {
+	i  encFnInfo
+	fe func(*encoderJsonIO, *encFnInfo, reflect.Value)
+}
+type encRtidFnJsonIO struct {
+	rtid uintptr
+	fn   *encFnJsonIO
+}
+type encoderJsonIO struct {
+	dh helperEncDriverJsonIO
+	fp *fastpathEsJsonIO
+	e  jsonEncDriverIO
+	encoderBase
+}
+type helperDecDriverJsonIO struct{}
+type decFnJsonIO struct {
+	i  decFnInfo
+	fd func(*decoderJsonIO, *decFnInfo, reflect.Value)
+}
+type decRtidFnJsonIO struct {
+	rtid uintptr
+	fn   *decFnJsonIO
+}
+type decoderJsonIO struct {
+	dh helperDecDriverJsonIO
+	fp *fastpathDsJsonIO
+	d  jsonDecDriverIO
+	decoderBase
+}
+type jsonEncDriverIO struct {
+	noBuiltInTypes
+	h *JsonHandle
+	e *encoderBase
+	s *bitset256
+
+	w bufioEncWriter
+
+	enc encoderI
+
+	timeFmtLayout string
+	byteFmter     jsonBytesFmter
+
+	timeFmt  jsonTimeFmt
+	bytesFmt jsonBytesFmt
+
+	di int8
+	d  bool
+	dl uint16
+
+	ks bool
+	is byte
+
+	typical bool
+
+	rawext bool
+
+	b [48]byte
+}
+type jsonDecDriverIO struct {
+	noBuiltInTypes
+	decDriverNoopNumberHelper
+	h *JsonHandle
+	d *decoderBase
+
+	r ioDecReader
+
+	buf []byte
+
+	tok  uint8
+	_    bool
+	_    byte
+	bstr [4]byte
+
+	jsonHandleOpts
+
+	dec decoderI
+}
+
+func (e *encoderJsonIO) rawExt(_ *encFnInfo, rv reflect.Value) {
+	if re := rv2i(rv).(*RawExt); re == nil {
+		e.e.EncodeNil()
+	} else {
+		e.e.EncodeRawExt(re)
+	}
+}
+
+func (e *encoderJsonIO) ext(f *encFnInfo, rv reflect.Value) {
+	e.e.EncodeExt(rv2i(rv), f.ti.rt, f.xfTag, f.xfFn)
+}
+
+func (e *encoderJsonIO) selferMarshal(_ *encFnInfo, rv reflect.Value) {
+	rv2i(rv).(Selfer).CodecEncodeSelf(&Encoder{e})
+}
+
+func (e *encoderJsonIO) binaryMarshal(_ *encFnInfo, rv reflect.Value) {
+	bs, fnerr := rv2i(rv).(encoding.BinaryMarshaler).MarshalBinary()
+	e.marshalRaw(bs, fnerr)
+}
+
+func (e *encoderJsonIO) textMarshal(_ *encFnInfo, rv reflect.Value) {
+	bs, fnerr := rv2i(rv).(encoding.TextMarshaler).MarshalText()
+	e.marshalUtf8(bs, fnerr)
+}
+
+func (e *encoderJsonIO) jsonMarshal(_ *encFnInfo, rv reflect.Value) {
+	bs, fnerr := rv2i(rv).(jsonMarshaler).MarshalJSON()
+	e.marshalAsis(bs, fnerr)
+}
+
+func (e *encoderJsonIO) raw(_ *encFnInfo, rv reflect.Value) {
+	e.rawBytes(rv2i(rv).(Raw))
+}
+
+func (e *encoderJsonIO) encodeComplex64(v complex64) {
+	if imag(v) != 0 {
+		halt.errorf("cannot encode complex number: %v, with imaginary values: %v", any(v), any(imag(v)))
+	}
+	e.e.EncodeFloat32(real(v))
+}
+
+func (e *encoderJsonIO) encodeComplex128(v complex128) {
+	if imag(v) != 0 {
+		halt.errorf("cannot encode complex number: %v, with imaginary values: %v", any(v), any(imag(v)))
+	}
+	e.e.EncodeFloat64(real(v))
+}
+
+func (e *encoderJsonIO) kBool(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeBool(rvGetBool(rv))
+}
+
+func (e *encoderJsonIO) kTime(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeTime(rvGetTime(rv))
+}
+
+func (e *encoderJsonIO) kString(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeString(rvGetString(rv))
+}
+
+func (e *encoderJsonIO) kFloat32(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeFloat32(rvGetFloat32(rv))
+}
+
+func (e *encoderJsonIO) kFloat64(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeFloat64(rvGetFloat64(rv))
+}
+
+func (e *encoderJsonIO) kComplex64(_ *encFnInfo, rv reflect.Value) {
+	e.encodeComplex64(rvGetComplex64(rv))
+}
+
+func (e *encoderJsonIO) kComplex128(_ *encFnInfo, rv reflect.Value) {
+	e.encodeComplex128(rvGetComplex128(rv))
+}
+
+func (e *encoderJsonIO) kInt(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt(rv)))
+}
+
+func (e *encoderJsonIO) kInt8(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt8(rv)))
+}
+
+func (e *encoderJsonIO) kInt16(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt16(rv)))
+}
+
+func (e *encoderJsonIO) kInt32(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt32(rv)))
+}
+
+func (e *encoderJsonIO) kInt64(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeInt(int64(rvGetInt64(rv)))
+}
+
+func (e *encoderJsonIO) kUint(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint(rv)))
+}
+
+func (e *encoderJsonIO) kUint8(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint8(rv)))
+}
+
+func (e *encoderJsonIO) kUint16(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint16(rv)))
+}
+
+func (e *encoderJsonIO) kUint32(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint32(rv)))
+}
+
+func (e *encoderJsonIO) kUint64(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUint64(rv)))
+}
+
+func (e *encoderJsonIO) kUintptr(_ *encFnInfo, rv reflect.Value) {
+	e.e.EncodeUint(uint64(rvGetUintptr(rv)))
+}
+
+func (e *encoderJsonIO) kSeqFn(rt reflect.Type) (fn *encFnJsonIO) {
+
+	if rt = baseRT(rt); rt.Kind() != reflect.Interface {
+		fn = e.fn(rt)
+	}
+	return
+}
+
+func (e *encoderJsonIO) kArrayWMbs(rv reflect.Value, ti *typeInfo, isSlice bool) {
+	var l int
+	if isSlice {
+		l = rvLenSlice(rv)
+	} else {
+		l = rv.Len()
+	}
+	if l == 0 {
+		e.e.WriteMapEmpty()
+		return
+	}
+	e.haltOnMbsOddLen(l)
+	e.mapStart(l >> 1)
+
+	var fn *encFnJsonIO
+	builtin := ti.tielem.flagEncBuiltin
+	if !builtin {
+		fn = e.kSeqFn(ti.elem)
+	}
+
+	j := 0
+	e.c = containerMapKey
+	e.e.WriteMapElemKey(true)
+	for {
+		rvv := rvArrayIndex(rv, j, ti, isSlice)
+		if builtin {
+			e.encodeIB(rv2i(baseRVRV(rvv)))
+		} else {
+			e.encodeValue(rvv, fn)
+		}
+		j++
+		if j == l {
+			break
+		}
+		if j&1 == 0 {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(false)
+		} else {
+			e.mapElemValue()
+		}
+	}
+	e.c = 0
+	e.e.WriteMapEnd()
+
+}
+
+func (e *encoderJsonIO) kArrayW(rv reflect.Value, ti *typeInfo, isSlice bool) {
+	var l int
+	if isSlice {
+		l = rvLenSlice(rv)
+	} else {
+		l = rv.Len()
+	}
+	if l <= 0 {
+		e.e.WriteArrayEmpty()
+		return
+	}
+	e.arrayStart(l)
+
+	var fn *encFnJsonIO
+	if !ti.tielem.flagEncBuiltin {
+		fn = e.kSeqFn(ti.elem)
+	}
+
+	j := 0
+	e.c = containerArrayElem
+	e.e.WriteArrayElem(true)
+	builtin := ti.tielem.flagEncBuiltin
+	for {
+		rvv := rvArrayIndex(rv, j, ti, isSlice)
+		if builtin {
+			e.encodeIB(rv2i(baseRVRV(rvv)))
+		} else {
+			e.encodeValue(rvv, fn)
+		}
+		j++
+		if j == l {
+			break
+		}
+		e.c = containerArrayElem
+		e.e.WriteArrayElem(false)
+	}
+
+	e.c = 0
+	e.e.WriteArrayEnd()
+}
+
+func (e *encoderJsonIO) kChan(f *encFnInfo, rv reflect.Value) {
+	if f.ti.chandir&uint8(reflect.RecvDir) == 0 {
+		halt.errorStr("send-only channel cannot be encoded")
+	}
+	if !f.ti.mbs && uint8TypId == rt2id(f.ti.elem) {
+		e.kSliceBytesChan(rv)
+		return
+	}
+	rtslice := reflect.SliceOf(f.ti.elem)
+	rv = chanToSlice(rv, rtslice, e.h.ChanRecvTimeout)
+	ti := e.h.getTypeInfo(rt2id(rtslice), rtslice)
+	if f.ti.mbs {
+		e.kArrayWMbs(rv, ti, true)
+	} else {
+		e.kArrayW(rv, ti, true)
+	}
+}
+
+func (e *encoderJsonIO) kSlice(f *encFnInfo, rv reflect.Value) {
+	if f.ti.mbs {
+		e.kArrayWMbs(rv, f.ti, true)
+	} else if f.ti.rtid == uint8SliceTypId || uint8TypId == rt2id(f.ti.elem) {
+
+		e.e.EncodeBytes(rvGetBytes(rv))
+	} else {
+		e.kArrayW(rv, f.ti, true)
+	}
+}
+
+func (e *encoderJsonIO) kArray(f *encFnInfo, rv reflect.Value) {
+	if f.ti.mbs {
+		e.kArrayWMbs(rv, f.ti, false)
+	} else if handleBytesWithinKArray && uint8TypId == rt2id(f.ti.elem) {
+		e.e.EncodeStringBytesRaw(rvGetArrayBytes(rv, nil))
+	} else {
+		e.kArrayW(rv, f.ti, false)
+	}
+}
+
+func (e *encoderJsonIO) kSliceBytesChan(rv reflect.Value) {
+
+	bs0 := e.blist.peek(32, true)
+	bs := bs0
+
+	irv := rv2i(rv)
+	ch, ok := irv.(<-chan byte)
+	if !ok {
+		ch = irv.(chan byte)
+	}
+
+L1:
+	switch timeout := e.h.ChanRecvTimeout; {
+	case timeout == 0:
+		for {
+			select {
+			case b := <-ch:
+				bs = append(bs, b)
+			default:
+				break L1
+			}
+		}
+	case timeout > 0:
+		tt := time.NewTimer(timeout)
+		for {
+			select {
+			case b := <-ch:
+				bs = append(bs, b)
+			case <-tt.C:
+
+				break L1
+			}
+		}
+	default:
+		for b := range ch {
+			bs = append(bs, b)
+		}
+	}
+
+	e.e.EncodeBytes(bs)
+	e.blist.put(bs)
+	if !byteSliceSameData(bs0, bs) {
+		e.blist.put(bs0)
+	}
+}
+
+func (e *encoderJsonIO) kStructFieldKey(keyType valueType, encName string) {
+
+	if keyType == valueTypeString {
+		e.e.EncodeString(encName)
+	} else if keyType == valueTypeInt {
+		e.e.EncodeInt(must.Int(strconv.ParseInt(encName, 10, 64)))
+	} else if keyType == valueTypeUint {
+		e.e.EncodeUint(must.Uint(strconv.ParseUint(encName, 10, 64)))
+	} else if keyType == valueTypeFloat {
+		e.e.EncodeFloat64(must.Float(strconv.ParseFloat(encName, 64)))
+	} else {
+		halt.errorStr2("invalid struct key type: ", keyType.String())
+	}
+
+}
+
+func (e *encoderJsonIO) kStructSimple(f *encFnInfo, rv reflect.Value) {
+	_ = e.e
+	tisfi := f.ti.sfi.source()
+
+	chkCirRef := e.h.CheckCircularRef
+	var si *structFieldInfo
+	var j int
+
+	if f.ti.toArray || e.h.StructToArray {
+		if len(tisfi) == 0 {
+			e.e.WriteArrayEmpty()
+			return
+		}
+		e.arrayStart(len(tisfi))
+		for j, si = range tisfi {
+			e.c = containerArrayElem
+			e.e.WriteArrayElem(j == 0)
+			if si.encBuiltin {
+				e.encodeIB(rv2i(si.fieldNoAlloc(rv, true)))
+			} else {
+				e.encodeValue(si.fieldNoAlloc(rv, !chkCirRef), nil)
+			}
+		}
+		e.c = 0
+		e.e.WriteArrayEnd()
+	} else {
+		if len(tisfi) == 0 {
+			e.e.WriteMapEmpty()
+			return
+		}
+		if e.h.Canonical {
+			tisfi = f.ti.sfi.sorted()
+		}
+		e.mapStart(len(tisfi))
+		for j, si = range tisfi {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(j == 0)
+			e.e.EncodeStringNoEscape4Json(si.encName)
+			e.mapElemValue()
+			if si.encBuiltin {
+				e.encodeIB(rv2i(si.fieldNoAlloc(rv, true)))
+			} else {
+				e.encodeValue(si.fieldNoAlloc(rv, !chkCirRef), nil)
+			}
+		}
+		e.c = 0
+		e.e.WriteMapEnd()
+	}
+}
+
+func (e *encoderJsonIO) kStruct(f *encFnInfo, rv reflect.Value) {
+	_ = e.e
+	ti := f.ti
+	toMap := !(ti.toArray || e.h.StructToArray)
+	var mf map[string]interface{}
+	if ti.flagMissingFielder {
+		toMap = true
+		mf = rv2i(rv).(MissingFielder).CodecMissingFields()
+	} else if ti.flagMissingFielderPtr {
+		toMap = true
+		if rv.CanAddr() {
+			mf = rv2i(rvAddr(rv, ti.ptr)).(MissingFielder).CodecMissingFields()
+		} else {
+			mf = rv2i(e.addrRV(rv, ti.rt, ti.ptr)).(MissingFielder).CodecMissingFields()
+		}
+	}
+	newlen := len(mf)
+	tisfi := ti.sfi.source()
+	newlen += len(tisfi)
+
+	var fkvs = e.slist.get(newlen)[:newlen]
+
+	recur := e.h.RecursiveEmptyCheck
+	chkCirRef := e.h.CheckCircularRef
+
+	var xlen int
+
+	var kv sfiRv
+	var j int
+	var sf encStructFieldObj
+	if toMap {
+		newlen = 0
+		if e.h.Canonical {
+			tisfi = f.ti.sfi.sorted()
+		}
+		for _, si := range tisfi {
+
+			if si.omitEmpty {
+				kv.r = si.fieldNoAlloc(rv, false)
+				if isEmptyValue(kv.r, e.h.TypeInfos, recur) {
+					continue
+				}
+			} else {
+				kv.r = si.fieldNoAlloc(rv, si.encBuiltin || !chkCirRef)
+			}
+			kv.v = si
+			fkvs[newlen] = kv
+			newlen++
+		}
+
+		var mf2s []stringIntf
+		if len(mf) != 0 {
+			mf2s = make([]stringIntf, 0, len(mf))
+			for k, v := range mf {
+				if k == "" {
+					continue
+				}
+				if ti.infoFieldOmitempty && isEmptyValue(reflect.ValueOf(v), e.h.TypeInfos, recur) {
+					continue
+				}
+				mf2s = append(mf2s, stringIntf{k, v})
+			}
+		}
+
+		xlen = newlen + len(mf2s)
+		if xlen == 0 {
+			e.e.WriteMapEmpty()
+			goto END
+		}
+
+		e.mapStart(xlen)
+
+		if len(mf2s) != 0 && e.h.Canonical {
+			mf2w := make([]encStructFieldObj, newlen+len(mf2s))
+			for j = 0; j < newlen; j++ {
+				kv = fkvs[j]
+				mf2w[j] = encStructFieldObj{kv.v.encName, kv.r, nil, true,
+					!kv.v.encNameEscape4Json, kv.v.encBuiltin}
+			}
+			for _, v := range mf2s {
+				mf2w[j] = encStructFieldObj{v.v, reflect.Value{}, v.i, false, false, false}
+				j++
+			}
+			sort.Sort((encStructFieldObjSlice)(mf2w))
+			for j, sf = range mf2w {
+				e.c = containerMapKey
+				e.e.WriteMapElemKey(j == 0)
+				if ti.keyType == valueTypeString && sf.noEsc4json {
+					e.e.EncodeStringNoEscape4Json(sf.key)
+				} else {
+					e.kStructFieldKey(ti.keyType, sf.key)
+				}
+				e.mapElemValue()
+				if sf.isRv {
+					if sf.builtin {
+						e.encodeIB(rv2i(baseRVRV(sf.rv)))
+					} else {
+						e.encodeValue(sf.rv, nil)
+					}
+				} else {
+					if !e.encodeBuiltin(sf.intf) {
+						e.encodeR(reflect.ValueOf(sf.intf))
+					}
+
+				}
+			}
+		} else {
+			keytyp := ti.keyType
+			for j = 0; j < newlen; j++ {
+				kv = fkvs[j]
+				e.c = containerMapKey
+				e.e.WriteMapElemKey(j == 0)
+				if ti.keyType == valueTypeString && !kv.v.encNameEscape4Json {
+					e.e.EncodeStringNoEscape4Json(kv.v.encName)
+				} else {
+					e.kStructFieldKey(keytyp, kv.v.encName)
+				}
+				e.mapElemValue()
+				if kv.v.encBuiltin {
+					e.encodeIB(rv2i(baseRVRV(kv.r)))
+				} else {
+					e.encodeValue(kv.r, nil)
+				}
+			}
+			for _, v := range mf2s {
+				e.c = containerMapKey
+				e.e.WriteMapElemKey(j == 0)
+				e.kStructFieldKey(keytyp, v.v)
+				e.mapElemValue()
+				if !e.encodeBuiltin(v.i) {
+					e.encodeR(reflect.ValueOf(v.i))
+				}
+
+				j++
+			}
+		}
+
+		e.c = 0
+		e.e.WriteMapEnd()
+	} else {
+		newlen = len(tisfi)
+		for i, si := range tisfi {
+
+			if si.omitEmpty {
+
+				kv.r = si.fieldNoAlloc(rv, false)
+				if isEmptyContainerValue(kv.r, e.h.TypeInfos, recur) {
+					kv.r = reflect.Value{}
+				}
+			} else {
+				kv.r = si.fieldNoAlloc(rv, si.encBuiltin || !chkCirRef)
+			}
+			kv.v = si
+			fkvs[i] = kv
+		}
+
+		if newlen == 0 {
+			e.e.WriteArrayEmpty()
+			goto END
+		}
+
+		e.arrayStart(newlen)
+		for j = 0; j < newlen; j++ {
+			e.c = containerArrayElem
+			e.e.WriteArrayElem(j == 0)
+			kv = fkvs[j]
+			if !kv.r.IsValid() {
+				e.e.EncodeNil()
+			} else if kv.v.encBuiltin {
+				e.encodeIB(rv2i(baseRVRV(kv.r)))
+			} else {
+				e.encodeValue(kv.r, nil)
+			}
+		}
+		e.c = 0
+		e.e.WriteArrayEnd()
+	}
+
+END:
+
+	e.slist.put(fkvs)
+}
+
+func (e *encoderJsonIO) kMap(f *encFnInfo, rv reflect.Value) {
+	_ = e.e
+	l := rvLenMap(rv)
+	if l == 0 {
+		e.e.WriteMapEmpty()
+		return
+	}
+	e.mapStart(l)
+
+	var keyFn, valFn *encFnJsonIO
+
+	ktypeKind := reflect.Kind(f.ti.keykind)
+	vtypeKind := reflect.Kind(f.ti.elemkind)
+
+	rtval := f.ti.elem
+	rtvalkind := vtypeKind
+	for rtvalkind == reflect.Ptr {
+		rtval = rtval.Elem()
+		rtvalkind = rtval.Kind()
+	}
+	if rtvalkind != reflect.Interface {
+		valFn = e.fn(rtval)
+	}
+
+	var rvv = mapAddrLoopvarRV(f.ti.elem, vtypeKind)
+
+	rtkey := f.ti.key
+	var keyTypeIsString = stringTypId == rt2id(rtkey)
+	if keyTypeIsString {
+		keyFn = e.fn(rtkey)
+	} else {
+		for rtkey.Kind() == reflect.Ptr {
+			rtkey = rtkey.Elem()
+		}
+		if rtkey.Kind() != reflect.Interface {
+			keyFn = e.fn(rtkey)
+		}
+	}
+
+	if e.h.Canonical {
+		e.kMapCanonical(f.ti, rv, rvv, keyFn, valFn)
+		e.c = 0
+		e.e.WriteMapEnd()
+		return
+	}
+
+	var rvk = mapAddrLoopvarRV(f.ti.key, ktypeKind)
+
+	var it mapIter
+	mapRange(&it, rv, rvk, rvv, true)
+
+	kbuiltin := f.ti.tikey.flagEncBuiltin
+	vbuiltin := f.ti.tielem.flagEncBuiltin
+	for j := 0; it.Next(); j++ {
+		rv = it.Key()
+		e.c = containerMapKey
+		e.e.WriteMapElemKey(j == 0)
+		if keyTypeIsString {
+			e.e.EncodeString(rvGetString(rv))
+		} else if kbuiltin {
+			e.encodeIB(rv2i(baseRVRV(rv)))
+		} else {
+			e.encodeValue(rv, keyFn)
+		}
+		e.mapElemValue()
+		rv = it.Value()
+		if vbuiltin {
+			e.encodeIB(rv2i(baseRVRV(rv)))
+		} else {
+			e.encodeValue(it.Value(), valFn)
+		}
+	}
+	it.Done()
+
+	e.c = 0
+	e.e.WriteMapEnd()
+}
+
+func (e *encoderJsonIO) kMapCanonical(ti *typeInfo, rv, rvv reflect.Value, keyFn, valFn *encFnJsonIO) {
+	_ = e.e
+
+	rtkey := ti.key
+	rtkeydecl := rtkey.PkgPath() == "" && rtkey.Name() != ""
+
+	mks := rv.MapKeys()
+	rtkeyKind := rtkey.Kind()
+	mparams := getMapReqParams(ti)
+
+	switch rtkeyKind {
+	case reflect.Bool:
+
+		if len(mks) == 2 && mks[0].Bool() {
+			mks[0], mks[1] = mks[1], mks[0]
+		}
+		for i := range mks {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeBool(mks[i].Bool())
+			} else {
+				e.encodeValueNonNil(mks[i], keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mks[i], rvv, mparams), valFn)
+		}
+	case reflect.String:
+		mksv := make([]orderedRv[string], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = rvGetString(k)
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeString(mksv[i].v)
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint, reflect.Uintptr:
+		mksv := make([]orderedRv[uint64], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = k.Uint()
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeUint(mksv[i].v)
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
+		mksv := make([]orderedRv[int64], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = k.Int()
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeInt(mksv[i].v)
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	case reflect.Float32:
+		mksv := make([]orderedRv[float64], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = k.Float()
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeFloat32(float32(mksv[i].v))
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	case reflect.Float64:
+		mksv := make([]orderedRv[float64], len(mks))
+		for i, k := range mks {
+			v := &mksv[i]
+			v.r = k
+			v.v = k.Float()
+		}
+		slices.SortFunc(mksv, cmpOrderedRv)
+		for i := range mksv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(i == 0)
+			if rtkeydecl {
+				e.e.EncodeFloat64(mksv[i].v)
+			} else {
+				e.encodeValueNonNil(mksv[i].r, keyFn)
+			}
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+		}
+	default:
+		if rtkey == timeTyp {
+			mksv := make([]timeRv, len(mks))
+			for i, k := range mks {
+				v := &mksv[i]
+				v.r = k
+				v.v = rv2i(k).(time.Time)
+			}
+			slices.SortFunc(mksv, cmpTimeRv)
+			for i := range mksv {
+				e.c = containerMapKey
+				e.e.WriteMapElemKey(i == 0)
+				e.e.EncodeTime(mksv[i].v)
+				e.mapElemValue()
+				e.encodeValue(mapGet(rv, mksv[i].r, rvv, mparams), valFn)
+			}
+			break
+		}
+
+		bs0 := e.blist.get(len(mks) * 16)
+		mksv := bs0
+		mksbv := make([]bytesRv, len(mks))
+
+		sideEncode(e.hh, &e.h.sideEncPool, func(se encoderI) {
+			se.ResetBytes(&mksv)
+			for i, k := range mks {
+				v := &mksbv[i]
+				l := len(mksv)
+				se.setContainerState(containerMapKey)
+				se.encodeR(baseRVRV(k))
+				se.atEndOfEncode()
+				se.writerEnd()
+				v.r = k
+				v.v = mksv[l:]
+			}
+		})
+
+		slices.SortFunc(mksbv, cmpBytesRv)
+		for j := range mksbv {
+			e.c = containerMapKey
+			e.e.WriteMapElemKey(j == 0)
+			e.e.writeBytesAsis(mksbv[j].v)
+			e.mapElemValue()
+			e.encodeValue(mapGet(rv, mksbv[j].r, rvv, mparams), valFn)
+		}
+		e.blist.put(mksv)
+		if !byteSliceSameData(bs0, mksv) {
+			e.blist.put(bs0)
+		}
+	}
+}
+
+func (e *encoderJsonIO) init(h Handle) {
+	initHandle(h)
+	callMake(&e.e)
+	e.hh = h
+	e.h = h.getBasicHandle()
+
+	e.err = errEncoderNotInitialized
+
+	e.fp = e.e.init(h, &e.encoderBase, e).(*fastpathEsJsonIO)
+
+	if e.bytes {
+		e.rtidFn = &e.h.rtidFnsEncBytes
+		e.rtidFnNoExt = &e.h.rtidFnsEncNoExtBytes
+	} else {
+		e.rtidFn = &e.h.rtidFnsEncIO
+		e.rtidFnNoExt = &e.h.rtidFnsEncNoExtIO
+	}
+
+	e.reset()
+}
+
+func (e *encoderJsonIO) reset() {
+	e.e.reset()
+	if e.ci != nil {
+		e.ci = e.ci[:0]
+	}
+	e.c = 0
+	e.calls = 0
+	e.seq = 0
+	e.err = nil
+}
+
+func (e *encoderJsonIO) Encode(v interface{}) (err error) {
+
+	defer panicValToErr(e, callRecoverSentinel, &e.err, &err, debugging)
+	e.mustEncode(v)
+	return
+}
+
+func (e *encoderJsonIO) MustEncode(v interface{}) {
+	defer panicValToErr(e, callRecoverSentinel, &e.err, nil, true)
+	e.mustEncode(v)
+	return
+}
+
+func (e *encoderJsonIO) mustEncode(v interface{}) {
+	halt.onerror(e.err)
+	if e.hh == nil {
+		halt.onerror(errNoFormatHandle)
+	}
+
+	e.calls++
+	if !e.encodeBuiltin(v) {
+		e.encodeR(reflect.ValueOf(v))
+	}
+
+	e.calls--
+	if e.calls == 0 {
+		e.e.atEndOfEncode()
+		e.e.writerEnd()
+	}
+}
+
+func (e *encoderJsonIO) encodeI(iv interface{}) {
+	if !e.encodeBuiltin(iv) {
+		e.encodeR(reflect.ValueOf(iv))
+	}
+}
+
+func (e *encoderJsonIO) encodeIB(iv interface{}) {
+	if !e.encodeBuiltin(iv) {
+
+		halt.errorStr("[should not happen] invalid type passed to encodeBuiltin")
+	}
+}
+
+func (e *encoderJsonIO) encodeR(base reflect.Value) {
+	e.encodeValue(base, nil)
+}
+
+func (e *encoderJsonIO) encodeBuiltin(iv interface{}) (ok bool) {
+	ok = true
+	switch v := iv.(type) {
+	case nil:
+		e.e.EncodeNil()
+
+	case Raw:
+		e.rawBytes(v)
+	case string:
+		e.e.EncodeString(v)
+	case bool:
+		e.e.EncodeBool(v)
+	case int:
+		e.e.EncodeInt(int64(v))
+	case int8:
+		e.e.EncodeInt(int64(v))
+	case int16:
+		e.e.EncodeInt(int64(v))
+	case int32:
+		e.e.EncodeInt(int64(v))
+	case int64:
+		e.e.EncodeInt(v)
+	case uint:
+		e.e.EncodeUint(uint64(v))
+	case uint8:
+		e.e.EncodeUint(uint64(v))
+	case uint16:
+		e.e.EncodeUint(uint64(v))
+	case uint32:
+		e.e.EncodeUint(uint64(v))
+	case uint64:
+		e.e.EncodeUint(v)
+	case uintptr:
+		e.e.EncodeUint(uint64(v))
+	case float32:
+		e.e.EncodeFloat32(v)
+	case float64:
+		e.e.EncodeFloat64(v)
+	case complex64:
+		e.encodeComplex64(v)
+	case complex128:
+		e.encodeComplex128(v)
+	case time.Time:
+		e.e.EncodeTime(v)
+	case []byte:
+		e.e.EncodeBytes(v)
+	default:
+
+		ok = !skipFastpathTypeSwitchInDirectCall && e.dh.fastpathEncodeTypeSwitch(iv, e)
+	}
+	return
+}
+
+func (e *encoderJsonIO) encodeValue(rv reflect.Value, fn *encFnJsonIO) {
+
+	var ciPushes int
+
+	var rvp reflect.Value
+	var rvpValid bool
+
+RV:
+	switch rv.Kind() {
+	case reflect.Ptr:
+		if rvIsNil(rv) {
+			e.e.EncodeNil()
+			goto END
+		}
+		rvpValid = true
+		rvp = rv
+		rv = rv.Elem()
+
+		if e.h.CheckCircularRef && e.ci.canPushElemKind(rv.Kind()) {
+			e.ci.push(rv2i(rvp))
+			ciPushes++
+		}
+		goto RV
+	case reflect.Interface:
+		if rvIsNil(rv) {
+			e.e.EncodeNil()
+			goto END
+		}
+		rvpValid = false
+		rvp = reflect.Value{}
+		rv = rv.Elem()
+		fn = nil
+		goto RV
+	case reflect.Map:
+		if rvIsNil(rv) {
+			if e.h.NilCollectionToZeroLength {
+				e.e.WriteMapEmpty()
+			} else {
+				e.e.EncodeNil()
+			}
+			goto END
+		}
+	case reflect.Slice, reflect.Chan:
+		if rvIsNil(rv) {
+			if e.h.NilCollectionToZeroLength {
+				e.e.WriteArrayEmpty()
+			} else {
+				e.e.EncodeNil()
+			}
+			goto END
+		}
+	case reflect.Invalid, reflect.Func:
+		e.e.EncodeNil()
+		goto END
+	}
+
+	if fn == nil {
+		fn = e.fn(rv.Type())
+	}
+
+	if !fn.i.addrE {
+
+	} else if rvpValid {
+		rv = rvp
+	} else if rv.CanAddr() {
+		rv = rvAddr(rv, fn.i.ti.ptr)
+	} else {
+		rv = e.addrRV(rv, fn.i.ti.rt, fn.i.ti.ptr)
+	}
+	fn.fe(e, &fn.i, rv)
+
+END:
+	if ciPushes > 0 {
+		e.ci.pop(ciPushes)
+	}
+}
+
+func (e *encoderJsonIO) encodeValueNonNil(rv reflect.Value, fn *encFnJsonIO) {
+
+	if fn.i.addrE {
+		if rv.CanAddr() {
+			rv = rvAddr(rv, fn.i.ti.ptr)
+		} else {
+			rv = e.addrRV(rv, fn.i.ti.rt, fn.i.ti.ptr)
+		}
+	}
+	fn.fe(e, &fn.i, rv)
+}
+
+func (e *encoderJsonIO) encodeAs(v interface{}, t reflect.Type, ext bool) {
+	if ext {
+		e.encodeValue(baseRV(v), e.fn(t))
+	} else {
+		e.encodeValue(baseRV(v), e.fnNoExt(t))
+	}
+}
+
+func (e *encoderJsonIO) marshalUtf8(bs []byte, fnerr error) {
+	halt.onerror(fnerr)
+	if bs == nil {
+		e.e.EncodeNil()
+	} else {
+		e.e.EncodeString(stringView(bs))
+	}
+}
+
+func (e *encoderJsonIO) marshalAsis(bs []byte, fnerr error) {
+	halt.onerror(fnerr)
+	if bs == nil {
+		e.e.EncodeNil()
+	} else {
+		e.e.writeBytesAsis(bs)
+	}
+}
+
+func (e *encoderJsonIO) marshalRaw(bs []byte, fnerr error) {
+	halt.onerror(fnerr)
+	e.e.EncodeBytes(bs)
+}
+
+func (e *encoderJsonIO) rawBytes(vv Raw) {
+	v := []byte(vv)
+	if !e.h.Raw {
+		halt.errorBytes("Raw values cannot be encoded: ", v)
+	}
+	e.e.writeBytesAsis(v)
+}
+
+func (e *encoderJsonIO) fn(t reflect.Type) *encFnJsonIO {
+	return e.dh.encFnViaBH(t, e.rtidFn, e.h, e.fp, false)
+}
+
+func (e *encoderJsonIO) fnNoExt(t reflect.Type) *encFnJsonIO {
+	return e.dh.encFnViaBH(t, e.rtidFnNoExt, e.h, e.fp, true)
+}
+
+func (e *encoderJsonIO) mapStart(length int) {
+	e.e.WriteMapStart(length)
+	e.c = containerMapStart
+}
+
+func (e *encoderJsonIO) mapElemValue() {
+	e.e.WriteMapElemValue()
+	e.c = containerMapValue
+}
+
+func (e *encoderJsonIO) arrayStart(length int) {
+	e.e.WriteArrayStart(length)
+	e.c = containerArrayStart
+}
+
+func (e *encoderJsonIO) writerEnd() {
+	e.e.writerEnd()
+}
+
+func (e *encoderJsonIO) atEndOfEncode() {
+	e.e.atEndOfEncode()
+}
+
+func (e *encoderJsonIO) Reset(w io.Writer) {
+	if e.bytes {
+		halt.onerror(errEncNoResetBytesWithWriter)
+	}
+	e.reset()
+	if w == nil {
+		w = io.Discard
+	}
+	e.e.resetOutIO(w)
+}
+
+func (e *encoderJsonIO) ResetBytes(out *[]byte) {
+	if !e.bytes {
+		halt.onerror(errEncNoResetWriterWithBytes)
+	}
+	e.resetBytes(out)
+}
+
+func (e *encoderJsonIO) resetBytes(out *[]byte) {
+	e.reset()
+	if out == nil {
+		out = &bytesEncAppenderDefOut
+	}
+	e.e.resetOutBytes(out)
+}
+
+func (helperEncDriverJsonIO) newEncoderBytes(out *[]byte, h Handle) *encoderJsonIO {
+	var c1 encoderJsonIO
+	c1.bytes = true
+	c1.init(h)
+	c1.ResetBytes(out)
+	return &c1
+}
+
+func (helperEncDriverJsonIO) newEncoderIO(out io.Writer, h Handle) *encoderJsonIO {
+	var c1 encoderJsonIO
+	c1.bytes = false
+	c1.init(h)
+	c1.Reset(out)
+	return &c1
+}
+
+func (helperEncDriverJsonIO) encFnloadFastpathUnderlying(ti *typeInfo, fp *fastpathEsJsonIO) (f *fastpathEJsonIO, u reflect.Type) {
+	rtid := rt2id(ti.fastpathUnderlying)
+	idx, ok := fastpathAvIndex(rtid)
+	if !ok {
+		return
+	}
+	f = &fp[idx]
+	if uint8(reflect.Array) == ti.kind {
+		u = reflect.ArrayOf(ti.rt.Len(), ti.elem)
+	} else {
+		u = f.rt
+	}
+	return
+}
+
+func (helperEncDriverJsonIO) encFindRtidFn(s []encRtidFnJsonIO, rtid uintptr) (i uint, fn *encFnJsonIO) {
+
+	var h uint
+	var j = uint(len(s))
+LOOP:
+	if i < j {
+		h = (i + j) >> 1
+		if s[h].rtid < rtid {
+			i = h + 1
+		} else {
+			j = h
+		}
+		goto LOOP
+	}
+	if i < uint(len(s)) && s[i].rtid == rtid {
+		fn = s[i].fn
+	}
+	return
+}
+
+func (helperEncDriverJsonIO) encFromRtidFnSlice(fns *atomicRtidFnSlice) (s []encRtidFnJsonIO) {
+	if v := fns.load(); v != nil {
+		s = *(lowLevelToPtr[[]encRtidFnJsonIO](v))
+	}
+	return
+}
+
+func (dh helperEncDriverJsonIO) encFnViaBH(rt reflect.Type, fns *atomicRtidFnSlice,
+	x *BasicHandle, fp *fastpathEsJsonIO, checkExt bool) (fn *encFnJsonIO) {
+	return dh.encFnVia(rt, fns, x.typeInfos(), &x.mu, x.extHandle, fp,
+		checkExt, x.CheckCircularRef, x.timeBuiltin, x.binaryHandle, x.jsonHandle)
+}
+
+func (dh helperEncDriverJsonIO) encFnVia(rt reflect.Type, fns *atomicRtidFnSlice,
+	tinfos *TypeInfos, mu *sync.Mutex, exth extHandle, fp *fastpathEsJsonIO,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *encFnJsonIO) {
+	rtid := rt2id(rt)
+	var sp []encRtidFnJsonIO = dh.encFromRtidFnSlice(fns)
+	if sp != nil {
+		_, fn = dh.encFindRtidFn(sp, rtid)
+	}
+	if fn == nil {
+		fn = dh.encFnViaLoader(rt, rtid, fns, tinfos, mu, exth, fp, checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json)
+	}
+	return
+}
+
+func (dh helperEncDriverJsonIO) encFnViaLoader(rt reflect.Type, rtid uintptr, fns *atomicRtidFnSlice,
+	tinfos *TypeInfos, mu *sync.Mutex, exth extHandle, fp *fastpathEsJsonIO,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *encFnJsonIO) {
+
+	fn = dh.encFnLoad(rt, rtid, tinfos, exth, fp, checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json)
+	var sp []encRtidFnJsonIO
+	mu.Lock()
+	sp = dh.encFromRtidFnSlice(fns)
+
+	if sp == nil {
+		sp = []encRtidFnJsonIO{{rtid, fn}}
+		fns.store(ptrToLowLevel(&sp))
+	} else {
+		idx, fn2 := dh.encFindRtidFn(sp, rtid)
+		if fn2 == nil {
+			sp2 := make([]encRtidFnJsonIO, len(sp)+1)
+			copy(sp2[idx+1:], sp[idx:])
+			copy(sp2, sp[:idx])
+			sp2[idx] = encRtidFnJsonIO{rtid, fn}
+			fns.store(ptrToLowLevel(&sp2))
+		}
+	}
+	mu.Unlock()
+	return
+}
+
+func (dh helperEncDriverJsonIO) encFnLoad(rt reflect.Type, rtid uintptr, tinfos *TypeInfos,
+	exth extHandle, fp *fastpathEsJsonIO,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *encFnJsonIO) {
+	fn = new(encFnJsonIO)
+	fi := &(fn.i)
+	ti := tinfos.get(rtid, rt)
+	fi.ti = ti
+	rk := reflect.Kind(ti.kind)
+
+	if rtid == timeTypId && timeBuiltin {
+		fn.fe = (*encoderJsonIO).kTime
+	} else if rtid == rawTypId {
+		fn.fe = (*encoderJsonIO).raw
+	} else if rtid == rawExtTypId {
+		fn.fe = (*encoderJsonIO).rawExt
+		fi.addrE = true
+	} else if xfFn := exth.getExt(rtid, checkExt); xfFn != nil {
+		fi.xfTag, fi.xfFn = xfFn.tag, xfFn.ext
+		fn.fe = (*encoderJsonIO).ext
+		if rk == reflect.Struct || rk == reflect.Array {
+			fi.addrE = true
+		}
+	} else if ti.flagSelfer || ti.flagSelferPtr {
+		fn.fe = (*encoderJsonIO).selferMarshal
+		fi.addrE = ti.flagSelferPtr
+	} else if supportMarshalInterfaces && binaryEncoding &&
+		(ti.flagBinaryMarshaler || ti.flagBinaryMarshalerPtr) &&
+		(ti.flagBinaryUnmarshaler || ti.flagBinaryUnmarshalerPtr) {
+		fn.fe = (*encoderJsonIO).binaryMarshal
+		fi.addrE = ti.flagBinaryMarshalerPtr
+	} else if supportMarshalInterfaces && !binaryEncoding && json &&
+		(ti.flagJsonMarshaler || ti.flagJsonMarshalerPtr) &&
+		(ti.flagJsonUnmarshaler || ti.flagJsonUnmarshalerPtr) {
+
+		fn.fe = (*encoderJsonIO).jsonMarshal
+		fi.addrE = ti.flagJsonMarshalerPtr
+	} else if supportMarshalInterfaces && !binaryEncoding &&
+		(ti.flagTextMarshaler || ti.flagTextMarshalerPtr) &&
+		(ti.flagTextUnmarshaler || ti.flagTextUnmarshalerPtr) {
+		fn.fe = (*encoderJsonIO).textMarshal
+		fi.addrE = ti.flagTextMarshalerPtr
+	} else {
+		if fastpathEnabled && (rk == reflect.Map || rk == reflect.Slice || rk == reflect.Array) {
+
+			var rtid2 uintptr
+			if !ti.flagHasPkgPath {
+				rtid2 = rtid
+				if rk == reflect.Array {
+					rtid2 = rt2id(ti.key)
+				}
+				if idx, ok := fastpathAvIndex(rtid2); ok {
+					fn.fe = fp[idx].encfn
+				}
+			} else {
+
+				xfe, xrt := dh.encFnloadFastpathUnderlying(ti, fp)
+				if xfe != nil {
+					xfnf := xfe.encfn
+					fn.fe = func(e *encoderJsonIO, xf *encFnInfo, xrv reflect.Value) {
+						xfnf(e, xf, rvConvert(xrv, xrt))
+					}
+				}
+			}
+		}
+		if fn.fe == nil {
+			switch rk {
+			case reflect.Bool:
+				fn.fe = (*encoderJsonIO).kBool
+			case reflect.String:
+
+				fn.fe = (*encoderJsonIO).kString
+			case reflect.Int:
+				fn.fe = (*encoderJsonIO).kInt
+			case reflect.Int8:
+				fn.fe = (*encoderJsonIO).kInt8
+			case reflect.Int16:
+				fn.fe = (*encoderJsonIO).kInt16
+			case reflect.Int32:
+				fn.fe = (*encoderJsonIO).kInt32
+			case reflect.Int64:
+				fn.fe = (*encoderJsonIO).kInt64
+			case reflect.Uint:
+				fn.fe = (*encoderJsonIO).kUint
+			case reflect.Uint8:
+				fn.fe = (*encoderJsonIO).kUint8
+			case reflect.Uint16:
+				fn.fe = (*encoderJsonIO).kUint16
+			case reflect.Uint32:
+				fn.fe = (*encoderJsonIO).kUint32
+			case reflect.Uint64:
+				fn.fe = (*encoderJsonIO).kUint64
+			case reflect.Uintptr:
+				fn.fe = (*encoderJsonIO).kUintptr
+			case reflect.Float32:
+				fn.fe = (*encoderJsonIO).kFloat32
+			case reflect.Float64:
+				fn.fe = (*encoderJsonIO).kFloat64
+			case reflect.Complex64:
+				fn.fe = (*encoderJsonIO).kComplex64
+			case reflect.Complex128:
+				fn.fe = (*encoderJsonIO).kComplex128
+			case reflect.Chan:
+				fn.fe = (*encoderJsonIO).kChan
+			case reflect.Slice:
+				fn.fe = (*encoderJsonIO).kSlice
+			case reflect.Array:
+				fn.fe = (*encoderJsonIO).kArray
+			case reflect.Struct:
+				if ti.simple {
+					fn.fe = (*encoderJsonIO).kStructSimple
+				} else {
+					fn.fe = (*encoderJsonIO).kStruct
+				}
+			case reflect.Map:
+				fn.fe = (*encoderJsonIO).kMap
+			case reflect.Interface:
+
+				fn.fe = (*encoderJsonIO).kErr
+			default:
+
+				fn.fe = (*encoderJsonIO).kErr
+			}
+		}
+	}
+	return
+}
+func (d *decoderJsonIO) rawExt(f *decFnInfo, rv reflect.Value) {
+	d.d.DecodeRawExt(rv2i(rv).(*RawExt))
+}
+
+func (d *decoderJsonIO) ext(f *decFnInfo, rv reflect.Value) {
+	d.d.DecodeExt(rv2i(rv), f.ti.rt, f.xfTag, f.xfFn)
+}
+
+func (d *decoderJsonIO) selferUnmarshal(_ *decFnInfo, rv reflect.Value) {
+	rv2i(rv).(Selfer).CodecDecodeSelf(&Decoder{d})
+}
+
+func (d *decoderJsonIO) binaryUnmarshal(_ *decFnInfo, rv reflect.Value) {
+	bm := rv2i(rv).(encoding.BinaryUnmarshaler)
+	xbs, _ := d.d.DecodeBytes()
+	fnerr := bm.UnmarshalBinary(xbs)
+	halt.onerror(fnerr)
+}
+
+func (d *decoderJsonIO) textUnmarshal(_ *decFnInfo, rv reflect.Value) {
+	tm := rv2i(rv).(encoding.TextUnmarshaler)
+	fnerr := tm.UnmarshalText(bytesOKs(d.d.DecodeStringAsBytes()))
+	halt.onerror(fnerr)
+}
+
+func (d *decoderJsonIO) jsonUnmarshal(_ *decFnInfo, rv reflect.Value) {
+	d.jsonUnmarshalV(rv2i(rv).(jsonUnmarshaler))
+}
+
+func (d *decoderJsonIO) jsonUnmarshalV(tm jsonUnmarshaler) {
+
+	halt.onerror(tm.UnmarshalJSON(d.d.nextValueBytes()))
+}
+
+func (d *decoderJsonIO) kErr(_ *decFnInfo, rv reflect.Value) {
+	halt.errorf("unsupported decoding kind: %s, for %#v", rv.Kind(), rv)
+
+}
+
+func (d *decoderJsonIO) raw(_ *decFnInfo, rv reflect.Value) {
+	rvSetBytes(rv, d.rawBytes())
+}
+
+func (d *decoderJsonIO) kString(_ *decFnInfo, rv reflect.Value) {
+	rvSetString(rv, d.detach2Str(d.d.DecodeStringAsBytes()))
+}
+
+func (d *decoderJsonIO) kBool(_ *decFnInfo, rv reflect.Value) {
+	rvSetBool(rv, d.d.DecodeBool())
+}
+
+func (d *decoderJsonIO) kTime(_ *decFnInfo, rv reflect.Value) {
+	rvSetTime(rv, d.d.DecodeTime())
+}
+
+func (d *decoderJsonIO) kFloat32(_ *decFnInfo, rv reflect.Value) {
+	rvSetFloat32(rv, d.d.DecodeFloat32())
+}
+
+func (d *decoderJsonIO) kFloat64(_ *decFnInfo, rv reflect.Value) {
+	rvSetFloat64(rv, d.d.DecodeFloat64())
+}
+
+func (d *decoderJsonIO) kComplex64(_ *decFnInfo, rv reflect.Value) {
+	rvSetComplex64(rv, complex(d.d.DecodeFloat32(), 0))
+}
+
+func (d *decoderJsonIO) kComplex128(_ *decFnInfo, rv reflect.Value) {
+	rvSetComplex128(rv, complex(d.d.DecodeFloat64(), 0))
+}
+
+func (d *decoderJsonIO) kInt(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt(rv, int(chkOvf.IntV(d.d.DecodeInt64(), intBitsize)))
+}
+
+func (d *decoderJsonIO) kInt8(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt8(rv, int8(chkOvf.IntV(d.d.DecodeInt64(), 8)))
+}
+
+func (d *decoderJsonIO) kInt16(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt16(rv, int16(chkOvf.IntV(d.d.DecodeInt64(), 16)))
+}
+
+func (d *decoderJsonIO) kInt32(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt32(rv, int32(chkOvf.IntV(d.d.DecodeInt64(), 32)))
+}
+
+func (d *decoderJsonIO) kInt64(_ *decFnInfo, rv reflect.Value) {
+	rvSetInt64(rv, d.d.DecodeInt64())
+}
+
+func (d *decoderJsonIO) kUint(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint(rv, uint(chkOvf.UintV(d.d.DecodeUint64(), uintBitsize)))
+}
+
+func (d *decoderJsonIO) kUintptr(_ *decFnInfo, rv reflect.Value) {
+	rvSetUintptr(rv, uintptr(chkOvf.UintV(d.d.DecodeUint64(), uintBitsize)))
+}
+
+func (d *decoderJsonIO) kUint8(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint8(rv, uint8(chkOvf.UintV(d.d.DecodeUint64(), 8)))
+}
+
+func (d *decoderJsonIO) kUint16(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint16(rv, uint16(chkOvf.UintV(d.d.DecodeUint64(), 16)))
+}
+
+func (d *decoderJsonIO) kUint32(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint32(rv, uint32(chkOvf.UintV(d.d.DecodeUint64(), 32)))
+}
+
+func (d *decoderJsonIO) kUint64(_ *decFnInfo, rv reflect.Value) {
+	rvSetUint64(rv, d.d.DecodeUint64())
+}
+
+func (d *decoderJsonIO) kInterfaceNaked(f *decFnInfo) (rvn reflect.Value) {
+
+	n := d.naked()
+	d.d.DecodeNaked()
+
+	if decFailNonEmptyIntf && f.ti.numMeth > 0 {
+		halt.errorf("cannot decode non-nil codec value into nil %v (%v methods)", f.ti.rt, f.ti.numMeth)
+	}
+
+	switch n.v {
+	case valueTypeMap:
+		mtid := d.mtid
+		if mtid == 0 {
+			if d.jsms {
+				mtid = mapStrIntfTypId
+			} else {
+				mtid = mapIntfIntfTypId
+			}
+		}
+		if mtid == mapStrIntfTypId {
+			var v2 map[string]interface{}
+			d.decode(&v2)
+			rvn = rv4iptr(&v2).Elem()
+		} else if mtid == mapIntfIntfTypId {
+			var v2 map[interface{}]interface{}
+			d.decode(&v2)
+			rvn = rv4iptr(&v2).Elem()
+		} else if d.mtr {
+			rvn = reflect.New(d.h.MapType)
+			d.decode(rv2i(rvn))
+			rvn = rvn.Elem()
+		} else {
+
+			rvn = rvZeroAddrK(d.h.MapType, reflect.Map)
+			d.decodeValue(rvn, nil)
+		}
+	case valueTypeArray:
+		if d.stid == 0 || d.stid == intfSliceTypId {
+			var v2 []interface{}
+			d.decode(&v2)
+			rvn = rv4iptr(&v2).Elem()
+		} else if d.str {
+			rvn = reflect.New(d.h.SliceType)
+			d.decode(rv2i(rvn))
+			rvn = rvn.Elem()
+		} else {
+			rvn = rvZeroAddrK(d.h.SliceType, reflect.Slice)
+			d.decodeValue(rvn, nil)
+		}
+		if d.h.PreferArrayOverSlice {
+			rvn = rvGetArray4Slice(rvn)
+		}
+	case valueTypeExt:
+		tag, bytes := n.u, n.l
+		bfn := d.h.getExtForTag(tag)
+		var re = RawExt{Tag: tag}
+		if bytes == nil {
+
+			if bfn == nil {
+				d.decode(&re.Value)
+				rvn = rv4iptr(&re).Elem()
+			} else if bfn.ext == SelfExt {
+				rvn = rvZeroAddrK(bfn.rt, bfn.rt.Kind())
+				d.decodeValue(rvn, d.fnNoExt(bfn.rt))
+			} else {
+				rvn = reflect.New(bfn.rt)
+				d.interfaceExtConvertAndDecode(rv2i(rvn), bfn.ext)
+				rvn = rvn.Elem()
+			}
+		} else {
+
+			if bfn == nil {
+				re.setData(bytes, false)
+				rvn = rv4iptr(&re).Elem()
+			} else {
+				rvn = reflect.New(bfn.rt)
+				if bfn.ext == SelfExt {
+					sideDecode(d.hh, &d.h.sideDecPool, func(sd decoderI) { oneOffDecode(sd, rv2i(rvn), bytes, bfn.rt, true) })
+				} else {
+					bfn.ext.ReadExt(rv2i(rvn), bytes)
+				}
+				rvn = rvn.Elem()
+			}
+		}
+
+		if d.h.PreferPointerForStructOrArray && rvn.CanAddr() {
+			if rk := rvn.Kind(); rk == reflect.Array || rk == reflect.Struct {
+				rvn = rvn.Addr()
+			}
+		}
+	case valueTypeNil:
+
+	case valueTypeInt:
+		rvn = n.ri()
+	case valueTypeUint:
+		rvn = n.ru()
+	case valueTypeFloat:
+		rvn = n.rf()
+	case valueTypeBool:
+		rvn = n.rb()
+	case valueTypeString, valueTypeSymbol:
+		rvn = n.rs()
+	case valueTypeBytes:
+		rvn = n.rl()
+	case valueTypeTime:
+		rvn = n.rt()
+	default:
+		halt.errorStr2("kInterfaceNaked: unexpected valueType: ", n.v.String())
+	}
+	return
+}
+
+func (d *decoderJsonIO) kInterface(f *decFnInfo, rv reflect.Value) {
+
+	isnilrv := rvIsNil(rv)
+
+	var rvn reflect.Value
+
+	if d.h.InterfaceReset {
+
+		rvn = d.h.intf2impl(f.ti.rtid)
+		if !rvn.IsValid() {
+			rvn = d.kInterfaceNaked(f)
+			if rvn.IsValid() {
+				rvSetIntf(rv, rvn)
+			} else if !isnilrv {
+				decSetNonNilRV2Zero4Intf(rv)
+			}
+			return
+		}
+	} else if isnilrv {
+
+		rvn = d.h.intf2impl(f.ti.rtid)
+		if !rvn.IsValid() {
+			rvn = d.kInterfaceNaked(f)
+			if rvn.IsValid() {
+				rvSetIntf(rv, rvn)
+			}
+			return
+		}
+	} else {
+
+		rvn = rv.Elem()
+	}
+
+	canDecode, _ := isDecodeable(rvn)
+
+	if !canDecode {
+		rvn2 := d.oneShotAddrRV(rvn.Type(), rvn.Kind())
+		rvSetDirect(rvn2, rvn)
+		rvn = rvn2
+	}
+
+	d.decodeValue(rvn, nil)
+	rvSetIntf(rv, rvn)
+}
+
+func (d *decoderJsonIO) kStructField(si *structFieldInfo, rv reflect.Value) {
+	if d.d.TryNil() {
+		rv = si.fieldNoAlloc(rv, true)
+		if rv.IsValid() {
+			decSetNonNilRV2Zero(rv)
+		}
+	} else if si.decBuiltin {
+		rv = rvAddr(si.fieldAlloc(rv), si.ptrTyp)
+		d.decode(rv2i(rv))
+	} else {
+		fn := d.fn(si.baseTyp)
+		rv = si.fieldAlloc(rv)
+		if fn.i.addrD {
+			rv = rvAddr(rv, si.ptrTyp)
+		}
+		fn.fd(d, &fn.i, rv)
+	}
+}
+
+func (d *decoderJsonIO) kStructSimple(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+	ctyp := d.d.ContainerType()
+	ti := f.ti
+	if ctyp == valueTypeMap {
+		containerLen := d.mapStart(d.d.ReadMapStart())
+		if containerLen == 0 {
+			d.mapEnd()
+			return
+		}
+		hasLen := containerLen >= 0
+		var rvkencname []byte
+		for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+			d.mapElemKey(j == 0)
+			sab, att := d.d.DecodeStringAsBytes()
+			rvkencname = d.usableStructFieldNameBytes(rvkencname, sab, att)
+			d.mapElemValue()
+			if si := ti.siForEncName(rvkencname); si != nil {
+				d.kStructField(si, rv)
+			} else {
+				d.structFieldNotFound(-1, stringView(rvkencname))
+			}
+		}
+		d.mapEnd()
+	} else if ctyp == valueTypeArray {
+		containerLen := d.arrayStart(d.d.ReadArrayStart())
+		if containerLen == 0 {
+			d.arrayEnd()
+			return
+		}
+
+		tisfi := ti.sfi.source()
+		hasLen := containerLen >= 0
+
+		for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+			d.arrayElem(j == 0)
+			if j < len(tisfi) {
+				d.kStructField(tisfi[j], rv)
+			} else {
+				d.structFieldNotFound(j, "")
+			}
+		}
+		d.arrayEnd()
+	} else {
+		halt.onerror(errNeedMapOrArrayDecodeToStruct)
+	}
+}
+
+func (d *decoderJsonIO) kStruct(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+	ctyp := d.d.ContainerType()
+	ti := f.ti
+	var mf MissingFielder
+	if ti.flagMissingFielder {
+		mf = rv2i(rv).(MissingFielder)
+	} else if ti.flagMissingFielderPtr {
+		mf = rv2i(rvAddr(rv, ti.ptr)).(MissingFielder)
+	}
+	if ctyp == valueTypeMap {
+		containerLen := d.mapStart(d.d.ReadMapStart())
+		if containerLen == 0 {
+			d.mapEnd()
+			return
+		}
+		hasLen := containerLen >= 0
+		var name2 []byte
+		var rvkencname []byte
+		tkt := ti.keyType
+		for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+			d.mapElemKey(j == 0)
+
+			if tkt == valueTypeString {
+				sab, att := d.d.DecodeStringAsBytes()
+				rvkencname = d.usableStructFieldNameBytes(rvkencname, sab, att)
+			} else if tkt == valueTypeInt {
+				rvkencname = strconv.AppendInt(d.b[:0], d.d.DecodeInt64(), 10)
+			} else if tkt == valueTypeUint {
+				rvkencname = strconv.AppendUint(d.b[:0], d.d.DecodeUint64(), 10)
+			} else if tkt == valueTypeFloat {
+				rvkencname = strconv.AppendFloat(d.b[:0], d.d.DecodeFloat64(), 'f', -1, 64)
+			} else {
+				halt.errorStr2("invalid struct key type: ", ti.keyType.String())
+			}
+
+			d.mapElemValue()
+			if si := ti.siForEncName(rvkencname); si != nil {
+				d.kStructField(si, rv)
+			} else if mf != nil {
+
+				name2 = append(name2[:0], rvkencname...)
+				var f interface{}
+				d.decode(&f)
+				if !mf.CodecMissingField(name2, f) && d.h.ErrorIfNoField {
+					halt.errorStr2("no matching struct field when decoding stream map with key: ", stringView(name2))
+				}
+			} else {
+				d.structFieldNotFound(-1, stringView(rvkencname))
+			}
+		}
+		d.mapEnd()
+	} else if ctyp == valueTypeArray {
+		containerLen := d.arrayStart(d.d.ReadArrayStart())
+		if containerLen == 0 {
+			d.arrayEnd()
+			return
+		}
+
+		tisfi := ti.sfi.source()
+		hasLen := containerLen >= 0
+
+		for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+			d.arrayElem(j == 0)
+			if j < len(tisfi) {
+				d.kStructField(tisfi[j], rv)
+			} else {
+				d.structFieldNotFound(j, "")
+			}
+		}
+
+		d.arrayEnd()
+	} else {
+		halt.onerror(errNeedMapOrArrayDecodeToStruct)
+	}
+}
+
+func (d *decoderJsonIO) kSlice(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+
+	ti := f.ti
+	rvCanset := rv.CanSet()
+
+	ctyp := d.d.ContainerType()
+	if ctyp == valueTypeBytes || ctyp == valueTypeString {
+
+		if !(ti.rtid == uint8SliceTypId || ti.elemkind == uint8(reflect.Uint8)) {
+			halt.errorf("bytes/string in stream must decode into slice/array of bytes, not %v", ti.rt)
+		}
+		rvbs := rvGetBytes(rv)
+		if rvCanset {
+			bs2, bst := d.decodeBytesInto(rvbs, false)
+			if bst != dBytesIntoParamOut {
+				rvSetBytes(rv, bs2)
+			}
+		} else {
+
+			d.decodeBytesInto(rvbs[:len(rvbs):len(rvbs)], true)
+		}
+		return
+	}
+
+	var containerLenS int
+	isArray := ctyp == valueTypeArray
+	if isArray {
+		containerLenS = d.arrayStart(d.d.ReadArrayStart())
+	} else if ctyp == valueTypeMap {
+		containerLenS = d.mapStart(d.d.ReadMapStart()) * 2
+	} else {
+		halt.errorStr2("decoding into a slice, expect map/array - got ", ctyp.String())
+	}
+
+	if containerLenS == 0 {
+		if rvCanset {
+			if rvIsNil(rv) {
+				rvSetDirect(rv, rvSliceZeroCap(ti.rt))
+			} else {
+				rvSetSliceLen(rv, 0)
+			}
+		}
+		if isArray {
+			d.arrayEnd()
+		} else {
+			d.mapEnd()
+		}
+		return
+	}
+
+	rtelem0Mut := !scalarBitset.isset(ti.elemkind)
+	rtelem := ti.elem
+
+	for k := reflect.Kind(ti.elemkind); k == reflect.Ptr; k = rtelem.Kind() {
+		rtelem = rtelem.Elem()
+	}
+
+	var fn *decFnJsonIO
+
+	var rvChanged bool
+
+	var rv0 = rv
+	var rv9 reflect.Value
+
+	rvlen := rvLenSlice(rv)
+	rvcap := rvCapSlice(rv)
+	maxInitLen := d.maxInitLen()
+	hasLen := containerLenS >= 0
+	if hasLen {
+		if containerLenS > rvcap {
+			oldRvlenGtZero := rvlen > 0
+			rvlen1 := int(decInferLen(containerLenS, maxInitLen, uint(ti.elemsize)))
+			if rvlen1 == rvlen {
+			} else if rvlen1 <= rvcap {
+				if rvCanset {
+					rvlen = rvlen1
+					rvSetSliceLen(rv, rvlen)
+				}
+			} else if rvCanset {
+				rvlen = rvlen1
+				rv, rvCanset = rvMakeSlice(rv, f.ti, rvlen, rvlen)
+				rvcap = rvlen
+				rvChanged = !rvCanset
+			} else {
+				halt.errorStr("cannot decode into non-settable slice")
+			}
+			if rvChanged && oldRvlenGtZero && rtelem0Mut {
+				rvCopySlice(rv, rv0, rtelem)
+			}
+		} else if containerLenS != rvlen {
+			if rvCanset {
+				rvlen = containerLenS
+				rvSetSliceLen(rv, rvlen)
+			}
+		}
+	}
+
+	var elemReset = d.h.SliceElementReset
+
+	var rtelemIsPtr bool
+	var rtelemElem reflect.Type
+	builtin := ti.tielem.flagDecBuiltin
+	if builtin {
+		rtelemIsPtr = ti.elemkind == uint8(reflect.Ptr)
+		if rtelemIsPtr {
+			rtelemElem = ti.elem.Elem()
+		}
+	}
+
+	var j int
+	for ; d.containerNext(j, containerLenS, hasLen); j++ {
+		if j == 0 {
+			if rvIsNil(rv) {
+				if rvCanset {
+					rvlen = int(decInferLen(containerLenS, maxInitLen, uint(ti.elemsize)))
+					rv, rvCanset = rvMakeSlice(rv, f.ti, rvlen, rvlen)
+					rvcap = rvlen
+					rvChanged = !rvCanset
+				} else {
+					halt.errorStr("cannot decode into non-settable slice")
+				}
+			}
+			if fn == nil {
+				fn = d.fn(rtelem)
+			}
+		}
+
+		if ctyp == valueTypeArray {
+			d.arrayElem(j == 0)
+		} else if j&1 == 0 {
+			d.mapElemKey(j == 0)
+		} else {
+			d.mapElemValue()
+		}
+
+		if j >= rvlen {
+
+			if rvlen < rvcap {
+				rvlen = rvcap
+				if rvCanset {
+					rvSetSliceLen(rv, rvlen)
+				} else if rvChanged {
+					rv = rvSlice(rv, rvlen)
+				} else {
+					halt.onerror(errExpandSliceCannotChange)
+				}
+			} else {
+				if !(rvCanset || rvChanged) {
+					halt.onerror(errExpandSliceCannotChange)
+				}
+				rv, rvcap, rvCanset = rvGrowSlice(rv, f.ti, rvcap, 1)
+
+				rvlen = rvcap
+				rvChanged = !rvCanset
+			}
+		}
+
+		rv9 = rvArrayIndex(rv, j, f.ti, true)
+		if elemReset {
+			rvSetZero(rv9)
+		}
+		if d.d.TryNil() {
+			rvSetZero(rv9)
+		} else if builtin {
+			if rtelemIsPtr {
+				if rvIsNil(rv9) {
+					rvSetDirect(rv9, reflect.New(rtelemElem))
+				}
+				d.decode(rv2i(rv9))
+			} else {
+				d.decode(rv2i(rvAddr(rv9, ti.tielem.ptr)))
+			}
+		} else {
+			d.decodeValueNoCheckNil(rv9, fn)
+		}
+	}
+	if j < rvlen {
+		if rvCanset {
+			rvSetSliceLen(rv, j)
+		} else if rvChanged {
+			rv = rvSlice(rv, j)
+		}
+
+	} else if j == 0 && rvIsNil(rv) {
+		if rvCanset {
+			rv = rvSliceZeroCap(ti.rt)
+			rvCanset = false
+			rvChanged = true
+		}
+	}
+	if isArray {
+		d.arrayEnd()
+	} else {
+		d.mapEnd()
+	}
+
+	if rvChanged {
+		rvSetDirect(rv0, rv)
+	}
+}
+
+func (d *decoderJsonIO) kArray(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+
+	ti := f.ti
+	ctyp := d.d.ContainerType()
+	if handleBytesWithinKArray && (ctyp == valueTypeBytes || ctyp == valueTypeString) {
+
+		if ti.elemkind != uint8(reflect.Uint8) {
+			halt.errorf("bytes/string in stream can decode into array of bytes, but not %v", ti.rt)
+		}
+		rvbs := rvGetArrayBytes(rv, nil)
+		d.decodeBytesInto(rvbs, true)
+		return
+	}
+
+	var containerLenS int
+	isArray := ctyp == valueTypeArray
+	if isArray {
+		containerLenS = d.arrayStart(d.d.ReadArrayStart())
+	} else if ctyp == valueTypeMap {
+		containerLenS = d.mapStart(d.d.ReadMapStart()) * 2
+	} else {
+		halt.errorStr2("decoding into a slice, expect map/array - got ", ctyp.String())
+	}
+
+	if containerLenS == 0 {
+		if isArray {
+			d.arrayEnd()
+		} else {
+			d.mapEnd()
+		}
+		return
+	}
+
+	rtelem := ti.elem
+	for k := reflect.Kind(ti.elemkind); k == reflect.Ptr; k = rtelem.Kind() {
+		rtelem = rtelem.Elem()
+	}
+
+	var rv9 reflect.Value
+
+	rvlen := rv.Len()
+	hasLen := containerLenS >= 0
+	if hasLen && containerLenS > rvlen {
+		halt.errorf("cannot decode into array with length: %v, less than container length: %v", any(rvlen), any(containerLenS))
+	}
+
+	var elemReset = d.h.SliceElementReset
+
+	var rtelemIsPtr bool
+	var rtelemElem reflect.Type
+	var fn *decFnJsonIO
+	builtin := ti.tielem.flagDecBuiltin
+	if builtin {
+		rtelemIsPtr = ti.elemkind == uint8(reflect.Ptr)
+		if rtelemIsPtr {
+			rtelemElem = ti.elem.Elem()
+		}
+	} else {
+		fn = d.fn(rtelem)
+	}
+
+	for j := 0; d.containerNext(j, containerLenS, hasLen); j++ {
+		if ctyp == valueTypeArray {
+			d.arrayElem(j == 0)
+		} else if j&1 == 0 {
+			d.mapElemKey(j == 0)
+		} else {
+			d.mapElemValue()
+		}
+
+		if j >= rvlen {
+			d.arrayCannotExpand(rvlen, j+1)
+			d.swallow()
+			continue
+		}
+
+		rv9 = rvArrayIndex(rv, j, f.ti, false)
+		if elemReset {
+			rvSetZero(rv9)
+		}
+		if d.d.TryNil() {
+			rvSetZero(rv9)
+		} else if builtin {
+			if rtelemIsPtr {
+				if rvIsNil(rv9) {
+					rvSetDirect(rv9, reflect.New(rtelemElem))
+				}
+				d.decode(rv2i(rv9))
+			} else {
+				d.decode(rv2i(rvAddr(rv9, ti.tielem.ptr)))
+			}
+		} else {
+			d.decodeValueNoCheckNil(rv9, fn)
+		}
+	}
+	if isArray {
+		d.arrayEnd()
+	} else {
+		d.mapEnd()
+	}
+}
+
+func (d *decoderJsonIO) kChan(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+
+	ti := f.ti
+	if ti.chandir&uint8(reflect.SendDir) == 0 {
+		halt.errorStr("receive-only channel cannot be decoded")
+	}
+	ctyp := d.d.ContainerType()
+	if ctyp == valueTypeBytes || ctyp == valueTypeString {
+
+		if !(ti.rtid == uint8SliceTypId || ti.elemkind == uint8(reflect.Uint8)) {
+			halt.errorf("bytes/string in stream must decode into slice/array of bytes, not %v", ti.rt)
+		}
+		bs2, _ := d.d.DecodeBytes()
+		irv := rv2i(rv)
+		ch, ok := irv.(chan<- byte)
+		if !ok {
+			ch = irv.(chan byte)
+		}
+		for _, b := range bs2 {
+			ch <- b
+		}
+		return
+	}
+
+	var rvCanset = rv.CanSet()
+
+	var containerLenS int
+	isArray := ctyp == valueTypeArray
+	if isArray {
+		containerLenS = d.arrayStart(d.d.ReadArrayStart())
+	} else if ctyp == valueTypeMap {
+		containerLenS = d.mapStart(d.d.ReadMapStart()) * 2
+	} else {
+		halt.errorStr2("decoding into a slice, expect map/array - got ", ctyp.String())
+	}
+
+	if containerLenS == 0 {
+		if rvCanset && rvIsNil(rv) {
+			rvSetDirect(rv, reflect.MakeChan(ti.rt, 0))
+		}
+		if isArray {
+			d.arrayEnd()
+		} else {
+			d.mapEnd()
+		}
+		return
+	}
+
+	rtelem := ti.elem
+	useTransient := decUseTransient && ti.elemkind != byte(reflect.Ptr) && ti.tielem.flagCanTransient
+
+	for k := reflect.Kind(ti.elemkind); k == reflect.Ptr; k = rtelem.Kind() {
+		rtelem = rtelem.Elem()
+	}
+
+	var fn *decFnJsonIO
+
+	var rvChanged bool
+	var rv0 = rv
+	var rv9 reflect.Value
+
+	var rvlen int
+	hasLen := containerLenS >= 0
+	maxInitLen := d.maxInitLen()
+
+	for j := 0; d.containerNext(j, containerLenS, hasLen); j++ {
+		if j == 0 {
+			if rvIsNil(rv) {
+				if hasLen {
+					rvlen = int(decInferLen(containerLenS, maxInitLen, uint(ti.elemsize)))
+				} else {
+					rvlen = decDefChanCap
+				}
+				if rvCanset {
+					rv = reflect.MakeChan(ti.rt, rvlen)
+					rvChanged = true
+				} else {
+					halt.errorStr("cannot decode into non-settable chan")
+				}
+			}
+			if fn == nil {
+				fn = d.fn(rtelem)
+			}
+		}
+
+		if ctyp == valueTypeArray {
+			d.arrayElem(j == 0)
+		} else if j&1 == 0 {
+			d.mapElemKey(j == 0)
+		} else {
+			d.mapElemValue()
+		}
+
+		if rv9.IsValid() {
+			rvSetZero(rv9)
+		} else if useTransient {
+			rv9 = d.perType.TransientAddrK(ti.elem, reflect.Kind(ti.elemkind))
+		} else {
+			rv9 = rvZeroAddrK(ti.elem, reflect.Kind(ti.elemkind))
+		}
+		if !d.d.TryNil() {
+			d.decodeValueNoCheckNil(rv9, fn)
+		}
+		rv.Send(rv9)
+	}
+	if isArray {
+		d.arrayEnd()
+	} else {
+		d.mapEnd()
+	}
+
+	if rvChanged {
+		rvSetDirect(rv0, rv)
+	}
+
+}
+
+func (d *decoderJsonIO) kMap(f *decFnInfo, rv reflect.Value) {
+	_ = d.d
+	containerLen := d.mapStart(d.d.ReadMapStart())
+	ti := f.ti
+	if rvIsNil(rv) {
+		rvlen := int(decInferLen(containerLen, d.maxInitLen(), uint(ti.keysize+ti.elemsize)))
+		rvSetDirect(rv, makeMapReflect(ti.rt, rvlen))
+	}
+
+	if containerLen == 0 {
+		d.mapEnd()
+		return
+	}
+
+	ktype, vtype := ti.key, ti.elem
+	ktypeId := rt2id(ktype)
+	vtypeKind := reflect.Kind(ti.elemkind)
+	ktypeKind := reflect.Kind(ti.keykind)
+	mparams := getMapReqParams(ti)
+
+	vtypePtr := vtypeKind == reflect.Ptr
+	ktypePtr := ktypeKind == reflect.Ptr
+
+	vTransient := decUseTransient && !vtypePtr && ti.tielem.flagCanTransient
+
+	kTransient := vTransient && !ktypePtr && ti.tikey.flagCanTransient
+
+	var vtypeElem reflect.Type
+
+	var keyFn, valFn *decFnJsonIO
+	var ktypeLo, vtypeLo = ktype, vtype
+
+	if ktypeKind == reflect.Ptr {
+		for ktypeLo = ktype.Elem(); ktypeLo.Kind() == reflect.Ptr; ktypeLo = ktypeLo.Elem() {
+		}
+	}
+
+	if vtypePtr {
+		vtypeElem = vtype.Elem()
+		for vtypeLo = vtypeElem; vtypeLo.Kind() == reflect.Ptr; vtypeLo = vtypeLo.Elem() {
+		}
+	}
+
+	rvkMut := !scalarBitset.isset(ti.keykind)
+	rvvMut := !scalarBitset.isset(ti.elemkind)
+	rvvCanNil := isnilBitset.isset(ti.elemkind)
+
+	var rvk, rvkn, rvv, rvvn, rvva, rvvz reflect.Value
+
+	var doMapGet, doMapSet bool
+
+	if !d.h.MapValueReset {
+		if rvvMut && (vtypeKind != reflect.Interface || !d.h.InterfaceReset) {
+			doMapGet = true
+			rvva = mapAddrLoopvarRV(vtype, vtypeKind)
+		}
+	}
+
+	ktypeIsString := ktypeId == stringTypId
+	ktypeIsIntf := ktypeId == intfTypId
+	hasLen := containerLen >= 0
+
+	var kstr2bs []byte
+	var kstr string
+
+	var mapKeyStringSharesBytesBuf bool
+	var att dBytesAttachState
+
+	var vElem, kElem reflect.Type
+	kbuiltin := ti.tikey.flagDecBuiltin && ti.keykind != uint8(reflect.Slice)
+	vbuiltin := ti.tielem.flagDecBuiltin
+	if kbuiltin && ktypePtr {
+		kElem = ti.key.Elem()
+	}
+	if vbuiltin && vtypePtr {
+		vElem = ti.elem.Elem()
+	}
+
+	for j := 0; d.containerNext(j, containerLen, hasLen); j++ {
+		mapKeyStringSharesBytesBuf = false
+		kstr = ""
+		if j == 0 {
+
+			if kTransient {
+				rvk = d.perType.TransientAddr2K(ktype, ktypeKind)
+			} else {
+				rvk = rvZeroAddrK(ktype, ktypeKind)
+			}
+			if !rvkMut {
+				rvkn = rvk
+			}
+			if !rvvMut {
+				if vTransient {
+					rvvn = d.perType.TransientAddrK(vtype, vtypeKind)
+				} else {
+					rvvn = rvZeroAddrK(vtype, vtypeKind)
+				}
+			}
+			if !ktypeIsString && keyFn == nil {
+				keyFn = d.fn(ktypeLo)
+			}
+			if valFn == nil {
+				valFn = d.fn(vtypeLo)
+			}
+		} else if rvkMut {
+			rvSetZero(rvk)
+		} else {
+			rvk = rvkn
+		}
+
+		d.mapElemKey(j == 0)
+
+		if d.d.TryNil() {
+			rvSetZero(rvk)
+		} else if ktypeIsString {
+			kstr2bs, att = d.d.DecodeStringAsBytes()
+			kstr, mapKeyStringSharesBytesBuf = d.bytes2Str(kstr2bs, att)
+			rvSetString(rvk, kstr)
+		} else {
+			if kbuiltin {
+				if ktypePtr {
+					if rvIsNil(rvk) {
+						rvSetDirect(rvk, reflect.New(kElem))
+					}
+					d.decode(rv2i(rvk))
+				} else {
+					d.decode(rv2i(rvAddr(rvk, ti.tikey.ptr)))
+				}
+			} else {
+				d.decodeValueNoCheckNil(rvk, keyFn)
+			}
+
+			if ktypeIsIntf {
+				if rvk2 := rvk.Elem(); rvk2.IsValid() && rvk2.Type() == uint8SliceTyp {
+					kstr2bs = rvGetBytes(rvk2)
+					kstr, mapKeyStringSharesBytesBuf = d.bytes2Str(kstr2bs, dBytesAttachView)
+					rvSetIntf(rvk, rv4istr(kstr))
+				}
+
+			}
+		}
+
+		if mapKeyStringSharesBytesBuf && d.bufio {
+			if ktypeIsString {
+				rvSetString(rvk, d.detach2Str(kstr2bs, att))
+			} else {
+				rvSetIntf(rvk, rv4istr(d.detach2Str(kstr2bs, att)))
+			}
+			mapKeyStringSharesBytesBuf = false
+		}
+
+		d.mapElemValue()
+
+		if d.d.TryNil() {
+			if mapKeyStringSharesBytesBuf {
+				if ktypeIsString {
+					rvSetString(rvk, d.detach2Str(kstr2bs, att))
+				} else {
+					rvSetIntf(rvk, rv4istr(d.detach2Str(kstr2bs, att)))
+				}
+			}
+
+			if !rvvz.IsValid() {
+				rvvz = rvZeroK(vtype, vtypeKind)
+			}
+			mapSet(rv, rvk, rvvz, mparams)
+			continue
+		}
+
+		doMapSet = true
+
+		if !rvvMut {
+			rvv = rvvn
+		} else if !doMapGet {
+			goto NEW_RVV
+		} else {
+			rvv = mapGet(rv, rvk, rvva, mparams)
+			if !rvv.IsValid() || (rvvCanNil && rvIsNil(rvv)) {
+				goto NEW_RVV
+			}
+			switch vtypeKind {
+			case reflect.Ptr, reflect.Map:
+				doMapSet = false
+			case reflect.Interface:
+
+				rvvn = rvv.Elem()
+				if k := rvvn.Kind(); (k == reflect.Ptr || k == reflect.Map) && !rvIsNil(rvvn) {
+					d.decodeValueNoCheckNil(rvvn, nil)
+					continue
+				}
+
+				rvvn = rvZeroAddrK(vtype, vtypeKind)
+				rvSetIntf(rvvn, rvv)
+				rvv = rvvn
+			default:
+
+				if vTransient {
+					rvvn = d.perType.TransientAddrK(vtype, vtypeKind)
+				} else {
+					rvvn = rvZeroAddrK(vtype, vtypeKind)
+				}
+				rvSetDirect(rvvn, rvv)
+				rvv = rvvn
+			}
+		}
+		goto DECODE_VALUE_NO_CHECK_NIL
+
+	NEW_RVV:
+		if vtypePtr {
+			rvv = reflect.New(vtypeElem)
+		} else if vTransient {
+			rvv = d.perType.TransientAddrK(vtype, vtypeKind)
+		} else {
+			rvv = rvZeroAddrK(vtype, vtypeKind)
+		}
+
+	DECODE_VALUE_NO_CHECK_NIL:
+		if doMapSet && mapKeyStringSharesBytesBuf {
+			if ktypeIsString {
+				rvSetString(rvk, d.detach2Str(kstr2bs, att))
+			} else {
+				rvSetIntf(rvk, rv4istr(d.detach2Str(kstr2bs, att)))
+			}
+		}
+		if vbuiltin {
+			if vtypePtr {
+				if rvIsNil(rvv) {
+					rvSetDirect(rvv, reflect.New(vElem))
+				}
+				d.decode(rv2i(rvv))
+			} else {
+				d.decode(rv2i(rvAddr(rvv, ti.tielem.ptr)))
+			}
+		} else {
+			d.decodeValueNoCheckNil(rvv, valFn)
+		}
+		if doMapSet {
+			mapSet(rv, rvk, rvv, mparams)
+		}
+	}
+
+	d.mapEnd()
+}
+
+func (d *decoderJsonIO) init(h Handle) {
+	initHandle(h)
+	callMake(&d.d)
+	d.hh = h
+	d.h = h.getBasicHandle()
+
+	d.err = errDecoderNotInitialized
+
+	if d.h.InternString && d.is == nil {
+		d.is.init()
+	}
+
+	d.fp = d.d.init(h, &d.decoderBase, d).(*fastpathDsJsonIO)
+
+	if d.bytes {
+		d.rtidFn = &d.h.rtidFnsDecBytes
+		d.rtidFnNoExt = &d.h.rtidFnsDecNoExtBytes
+	} else {
+		d.bufio = d.h.ReaderBufferSize > 0
+		d.rtidFn = &d.h.rtidFnsDecIO
+		d.rtidFnNoExt = &d.h.rtidFnsDecNoExtIO
+	}
+
+	d.reset()
+
+}
+
+func (d *decoderJsonIO) reset() {
+	d.d.reset()
+	d.err = nil
+	d.c = 0
+	d.depth = 0
+	d.calls = 0
+
+	d.maxdepth = decDefMaxDepth
+	if d.h.MaxDepth > 0 {
+		d.maxdepth = d.h.MaxDepth
+	}
+	d.mtid = 0
+	d.stid = 0
+	d.mtr = false
+	d.str = false
+	if d.h.MapType != nil {
+		d.mtid = rt2id(d.h.MapType)
+		_, d.mtr = fastpathAvIndex(d.mtid)
+	}
+	if d.h.SliceType != nil {
+		d.stid = rt2id(d.h.SliceType)
+		_, d.str = fastpathAvIndex(d.stid)
+	}
+}
+
+func (d *decoderJsonIO) Reset(r io.Reader) {
+	if d.bytes {
+		halt.onerror(errDecNoResetBytesWithReader)
+	}
+	d.reset()
+	if r == nil {
+		r = &eofReader
+	}
+	d.d.resetInIO(r)
+}
+
+func (d *decoderJsonIO) ResetBytes(in []byte) {
+	if !d.bytes {
+		halt.onerror(errDecNoResetReaderWithBytes)
+	}
+	d.resetBytes(in)
+}
+
+func (d *decoderJsonIO) resetBytes(in []byte) {
+	d.reset()
+	if in == nil {
+		in = zeroByteSlice
+	}
+	d.d.resetInBytes(in)
+}
+
+func (d *decoderJsonIO) ResetString(s string) {
+	d.ResetBytes(bytesView(s))
+}
+
+func (d *decoderJsonIO) Decode(v interface{}) (err error) {
+
+	defer panicValToErr(d, callRecoverSentinel, &d.err, &err, debugging)
+	d.mustDecode(v)
+	return
+}
+
+func (d *decoderJsonIO) MustDecode(v interface{}) {
+	defer panicValToErr(d, callRecoverSentinel, &d.err, nil, true)
+	d.mustDecode(v)
+	return
+}
+
+func (d *decoderJsonIO) mustDecode(v interface{}) {
+	halt.onerror(d.err)
+	if d.hh == nil {
+		halt.onerror(errNoFormatHandle)
+	}
+
+	d.calls++
+	d.decode(v)
+	d.calls--
+}
+
+func (d *decoderJsonIO) Release() {}
+
+func (d *decoderJsonIO) swallow() {
+	d.d.nextValueBytes()
+}
+
+func (d *decoderJsonIO) nextValueBytes() []byte {
+	return d.d.nextValueBytes()
+}
+
+func (d *decoderJsonIO) decode(iv interface{}) {
+	_ = d.d
+
+	rv, ok := isNil(iv, true)
+	if ok {
+		halt.onerror(errCannotDecodeIntoNil)
+	}
+
+	switch v := iv.(type) {
+
+	case *string:
+		*v = d.detach2Str(d.d.DecodeStringAsBytes())
+	case *bool:
+		*v = d.d.DecodeBool()
+	case *int:
+		*v = int(chkOvf.IntV(d.d.DecodeInt64(), intBitsize))
+	case *int8:
+		*v = int8(chkOvf.IntV(d.d.DecodeInt64(), 8))
+	case *int16:
+		*v = int16(chkOvf.IntV(d.d.DecodeInt64(), 16))
+	case *int32:
+		*v = int32(chkOvf.IntV(d.d.DecodeInt64(), 32))
+	case *int64:
+		*v = d.d.DecodeInt64()
+	case *uint:
+		*v = uint(chkOvf.UintV(d.d.DecodeUint64(), uintBitsize))
+	case *uint8:
+		*v = uint8(chkOvf.UintV(d.d.DecodeUint64(), 8))
+	case *uint16:
+		*v = uint16(chkOvf.UintV(d.d.DecodeUint64(), 16))
+	case *uint32:
+		*v = uint32(chkOvf.UintV(d.d.DecodeUint64(), 32))
+	case *uint64:
+		*v = d.d.DecodeUint64()
+	case *uintptr:
+		*v = uintptr(chkOvf.UintV(d.d.DecodeUint64(), uintBitsize))
+	case *float32:
+		*v = d.d.DecodeFloat32()
+	case *float64:
+		*v = d.d.DecodeFloat64()
+	case *complex64:
+		*v = complex(d.d.DecodeFloat32(), 0)
+	case *complex128:
+		*v = complex(d.d.DecodeFloat64(), 0)
+	case *[]byte:
+		*v, _ = d.decodeBytesInto(*v, false)
+	case []byte:
+
+		d.decodeBytesInto(v[:len(v):len(v)], true)
+	case *time.Time:
+		*v = d.d.DecodeTime()
+	case *Raw:
+		*v = d.rawBytes()
+
+	case *interface{}:
+		d.decodeValue(rv4iptr(v), nil)
+
+	case reflect.Value:
+		if ok, _ = isDecodeable(v); !ok {
+			d.haltAsNotDecodeable(v)
+		}
+		d.decodeValue(v, nil)
+
+	default:
+
+		if skipFastpathTypeSwitchInDirectCall || !d.dh.fastpathDecodeTypeSwitch(iv, d) {
+			if !rv.IsValid() {
+				rv = reflect.ValueOf(iv)
+			}
+			if ok, _ = isDecodeable(rv); !ok {
+				d.haltAsNotDecodeable(rv)
+			}
+			d.decodeValue(rv, nil)
+		}
+	}
+}
+
+func (d *decoderJsonIO) decodeValue(rv reflect.Value, fn *decFnJsonIO) {
+	if d.d.TryNil() {
+		decSetNonNilRV2Zero(rv)
+	} else {
+		d.decodeValueNoCheckNil(rv, fn)
+	}
+}
+
+func (d *decoderJsonIO) decodeValueNoCheckNil(rv reflect.Value, fn *decFnJsonIO) {
+
+	var rvp reflect.Value
+	var rvpValid bool
+PTR:
+	if rv.Kind() == reflect.Ptr {
+		rvpValid = true
+		if rvIsNil(rv) {
+			rvSetDirect(rv, reflect.New(rv.Type().Elem()))
+		}
+		rvp = rv
+		rv = rv.Elem()
+		goto PTR
+	}
+
+	if fn == nil {
+		fn = d.fn(rv.Type())
+	}
+	if fn.i.addrD {
+		if rvpValid {
+			rv = rvp
+		} else if rv.CanAddr() {
+			rv = rvAddr(rv, fn.i.ti.ptr)
+		} else if fn.i.addrDf {
+			halt.errorStr("cannot decode into a non-pointer value")
+		}
+	}
+	fn.fd(d, &fn.i, rv)
+}
+
+func (d *decoderJsonIO) decodeAs(v interface{}, t reflect.Type, ext bool) {
+	if ext {
+		d.decodeValue(baseRV(v), d.fn(t))
+	} else {
+		d.decodeValue(baseRV(v), d.fnNoExt(t))
+	}
+}
+
+func (d *decoderJsonIO) structFieldNotFound(index int, rvkencname string) {
+
+	if d.h.ErrorIfNoField {
+		if index >= 0 {
+			halt.errorInt("no matching struct field found when decoding stream array at index ", int64(index))
+		} else if rvkencname != "" {
+			halt.errorStr2("no matching struct field found when decoding stream map with key ", rvkencname)
+		}
+	}
+	d.swallow()
+}
+
+func (d *decoderJsonIO) decodeBytesInto(out []byte, mustFit bool) (v []byte, state dBytesIntoState) {
+	v, att := d.d.DecodeBytes()
+	if cap(v) == 0 || (att >= dBytesAttachViewZerocopy && !mustFit) {
+
+		return
+	}
+	if len(v) == 0 {
+		v = zeroByteSlice
+		return
+	}
+	if len(out) == len(v) {
+		state = dBytesIntoParamOut
+	} else if cap(out) >= len(v) {
+		out = out[:len(v)]
+		state = dBytesIntoParamOutSlice
+	} else if mustFit {
+		halt.errorf("bytes capacity insufficient for decoded bytes: got/expected: %d/%d", len(v), len(out))
+	} else {
+		out = make([]byte, len(v))
+		state = dBytesIntoNew
+	}
+	copy(out, v)
+	v = out
+	return
+}
+
+func (d *decoderJsonIO) rawBytes() (v []byte) {
+
+	v = d.d.nextValueBytes()
+	if d.bytes && !d.h.ZeroCopy {
+		vv := make([]byte, len(v))
+		copy(vv, v)
+		v = vv
+	}
+	return
+}
+
+func (d *decoderJsonIO) wrapErr(v error, err *error) {
+	*err = wrapCodecErr(v, d.hh.Name(), d.d.NumBytesRead(), false)
+}
+
+func (d *decoderJsonIO) NumBytesRead() int {
+	return d.d.NumBytesRead()
+}
+
+func (d *decoderJsonIO) containerNext(j, containerLen int, hasLen bool) bool {
+
+	if hasLen {
+		return j < containerLen
+	}
+	return !d.d.CheckBreak()
+}
+
+func (d *decoderJsonIO) mapElemKey(firstTime bool) {
+	d.d.ReadMapElemKey(firstTime)
+	d.c = containerMapKey
+}
+
+func (d *decoderJsonIO) mapElemValue() {
+	d.d.ReadMapElemValue()
+	d.c = containerMapValue
+}
+
+func (d *decoderJsonIO) mapEnd() {
+	d.d.ReadMapEnd()
+	d.depthDecr()
+	d.c = 0
+}
+
+func (d *decoderJsonIO) arrayElem(firstTime bool) {
+	d.d.ReadArrayElem(firstTime)
+	d.c = containerArrayElem
+}
+
+func (d *decoderJsonIO) arrayEnd() {
+	d.d.ReadArrayEnd()
+	d.depthDecr()
+	d.c = 0
+}
+
+func (d *decoderJsonIO) interfaceExtConvertAndDecode(v interface{}, ext InterfaceExt) {
+
+	var vv interface{}
+	d.decode(&vv)
+	ext.UpdateExt(v, vv)
+
+}
+
+func (d *decoderJsonIO) fn(t reflect.Type) *decFnJsonIO {
+	return d.dh.decFnViaBH(t, d.rtidFn, d.h, d.fp, false)
+}
+
+func (d *decoderJsonIO) fnNoExt(t reflect.Type) *decFnJsonIO {
+	return d.dh.decFnViaBH(t, d.rtidFnNoExt, d.h, d.fp, true)
+}
+
+func (helperDecDriverJsonIO) newDecoderBytes(in []byte, h Handle) *decoderJsonIO {
+	var c1 decoderJsonIO
+	c1.bytes = true
+	c1.init(h)
+	c1.ResetBytes(in)
+	return &c1
+}
+
+func (helperDecDriverJsonIO) newDecoderIO(in io.Reader, h Handle) *decoderJsonIO {
+	var c1 decoderJsonIO
+	c1.init(h)
+	c1.Reset(in)
+	return &c1
+}
+
+func (helperDecDriverJsonIO) decFnloadFastpathUnderlying(ti *typeInfo, fp *fastpathDsJsonIO) (f *fastpathDJsonIO, u reflect.Type) {
+	rtid := rt2id(ti.fastpathUnderlying)
+	idx, ok := fastpathAvIndex(rtid)
+	if !ok {
+		return
+	}
+	f = &fp[idx]
+	if uint8(reflect.Array) == ti.kind {
+		u = reflect.ArrayOf(ti.rt.Len(), ti.elem)
+	} else {
+		u = f.rt
+	}
+	return
+}
+
+func (helperDecDriverJsonIO) decFindRtidFn(s []decRtidFnJsonIO, rtid uintptr) (i uint, fn *decFnJsonIO) {
+
+	var h uint
+	var j = uint(len(s))
+LOOP:
+	if i < j {
+		h = (i + j) >> 1
+		if s[h].rtid < rtid {
+			i = h + 1
+		} else {
+			j = h
+		}
+		goto LOOP
+	}
+	if i < uint(len(s)) && s[i].rtid == rtid {
+		fn = s[i].fn
+	}
+	return
+}
+
+func (helperDecDriverJsonIO) decFromRtidFnSlice(fns *atomicRtidFnSlice) (s []decRtidFnJsonIO) {
+	if v := fns.load(); v != nil {
+		s = *(lowLevelToPtr[[]decRtidFnJsonIO](v))
+	}
+	return
+}
+
+func (dh helperDecDriverJsonIO) decFnViaBH(rt reflect.Type, fns *atomicRtidFnSlice, x *BasicHandle, fp *fastpathDsJsonIO,
+	checkExt bool) (fn *decFnJsonIO) {
+	return dh.decFnVia(rt, fns, x.typeInfos(), &x.mu, x.extHandle, fp,
+		checkExt, x.CheckCircularRef, x.timeBuiltin, x.binaryHandle, x.jsonHandle)
+}
+
+func (dh helperDecDriverJsonIO) decFnVia(rt reflect.Type, fns *atomicRtidFnSlice,
+	tinfos *TypeInfos, mu *sync.Mutex, exth extHandle, fp *fastpathDsJsonIO,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *decFnJsonIO) {
+	rtid := rt2id(rt)
+	var sp []decRtidFnJsonIO = dh.decFromRtidFnSlice(fns)
+	if sp != nil {
+		_, fn = dh.decFindRtidFn(sp, rtid)
+	}
+	if fn == nil {
+		fn = dh.decFnViaLoader(rt, rtid, fns, tinfos, mu, exth, fp, checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json)
+	}
+	return
+}
+
+func (dh helperDecDriverJsonIO) decFnViaLoader(rt reflect.Type, rtid uintptr, fns *atomicRtidFnSlice,
+	tinfos *TypeInfos, mu *sync.Mutex, exth extHandle, fp *fastpathDsJsonIO,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *decFnJsonIO) {
+
+	fn = dh.decFnLoad(rt, rtid, tinfos, exth, fp, checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json)
+	var sp []decRtidFnJsonIO
+	mu.Lock()
+	sp = dh.decFromRtidFnSlice(fns)
+
+	if sp == nil {
+		sp = []decRtidFnJsonIO{{rtid, fn}}
+		fns.store(ptrToLowLevel(&sp))
+	} else {
+		idx, fn2 := dh.decFindRtidFn(sp, rtid)
+		if fn2 == nil {
+			sp2 := make([]decRtidFnJsonIO, len(sp)+1)
+			copy(sp2[idx+1:], sp[idx:])
+			copy(sp2, sp[:idx])
+			sp2[idx] = decRtidFnJsonIO{rtid, fn}
+			fns.store(ptrToLowLevel(&sp2))
+		}
+	}
+	mu.Unlock()
+	return
+}
+
+func (dh helperDecDriverJsonIO) decFnLoad(rt reflect.Type, rtid uintptr, tinfos *TypeInfos,
+	exth extHandle, fp *fastpathDsJsonIO,
+	checkExt, checkCircularRef, timeBuiltin, binaryEncoding, json bool) (fn *decFnJsonIO) {
+	fn = new(decFnJsonIO)
+	fi := &(fn.i)
+	ti := tinfos.get(rtid, rt)
+	fi.ti = ti
+	rk := reflect.Kind(ti.kind)
+
+	fi.addrDf = true
+
+	if rtid == timeTypId && timeBuiltin {
+		fn.fd = (*decoderJsonIO).kTime
+	} else if rtid == rawTypId {
+		fn.fd = (*decoderJsonIO).raw
+	} else if rtid == rawExtTypId {
+		fn.fd = (*decoderJsonIO).rawExt
+		fi.addrD = true
+	} else if xfFn := exth.getExt(rtid, checkExt); xfFn != nil {
+		fi.xfTag, fi.xfFn = xfFn.tag, xfFn.ext
+		fn.fd = (*decoderJsonIO).ext
+		fi.addrD = true
+	} else if ti.flagSelfer || ti.flagSelferPtr {
+		fn.fd = (*decoderJsonIO).selferUnmarshal
+		fi.addrD = ti.flagSelferPtr
+	} else if supportMarshalInterfaces && binaryEncoding &&
+		(ti.flagBinaryMarshaler || ti.flagBinaryMarshalerPtr) &&
+		(ti.flagBinaryUnmarshaler || ti.flagBinaryUnmarshalerPtr) {
+		fn.fd = (*decoderJsonIO).binaryUnmarshal
+		fi.addrD = ti.flagBinaryUnmarshalerPtr
+	} else if supportMarshalInterfaces && !binaryEncoding && json &&
+		(ti.flagJsonMarshaler || ti.flagJsonMarshalerPtr) &&
+		(ti.flagJsonUnmarshaler || ti.flagJsonUnmarshalerPtr) {
+
+		fn.fd = (*decoderJsonIO).jsonUnmarshal
+		fi.addrD = ti.flagJsonUnmarshalerPtr
+	} else if supportMarshalInterfaces && !binaryEncoding &&
+		(ti.flagTextMarshaler || ti.flagTextMarshalerPtr) &&
+		(ti.flagTextUnmarshaler || ti.flagTextUnmarshalerPtr) {
+		fn.fd = (*decoderJsonIO).textUnmarshal
+		fi.addrD = ti.flagTextUnmarshalerPtr
+	} else {
+		if fastpathEnabled && (rk == reflect.Map || rk == reflect.Slice || rk == reflect.Array) {
+			var rtid2 uintptr
+			if !ti.flagHasPkgPath {
+				rtid2 = rtid
+				if rk == reflect.Array {
+					rtid2 = rt2id(ti.key)
+				}
+				if idx, ok := fastpathAvIndex(rtid2); ok {
+					fn.fd = fp[idx].decfn
+					fi.addrD = true
+					fi.addrDf = false
+					if rk == reflect.Array {
+						fi.addrD = false
+					}
+				}
+			} else {
+
+				xfe, xrt := dh.decFnloadFastpathUnderlying(ti, fp)
+				if xfe != nil {
+					xfnf2 := xfe.decfn
+					if rk == reflect.Array {
+						fi.addrD = false
+						fn.fd = func(d *decoderJsonIO, xf *decFnInfo, xrv reflect.Value) {
+							xfnf2(d, xf, rvConvert(xrv, xrt))
+						}
+					} else {
+						fi.addrD = true
+						fi.addrDf = false
+						xptr2rt := reflect.PointerTo(xrt)
+						fn.fd = func(d *decoderJsonIO, xf *decFnInfo, xrv reflect.Value) {
+							if xrv.Kind() == reflect.Ptr {
+								xfnf2(d, xf, rvConvert(xrv, xptr2rt))
+							} else {
+								xfnf2(d, xf, rvConvert(xrv, xrt))
+							}
+						}
+					}
+				}
+			}
+		}
+		if fn.fd == nil {
+			switch rk {
+			case reflect.Bool:
+				fn.fd = (*decoderJsonIO).kBool
+			case reflect.String:
+				fn.fd = (*decoderJsonIO).kString
+			case reflect.Int:
+				fn.fd = (*decoderJsonIO).kInt
+			case reflect.Int8:
+				fn.fd = (*decoderJsonIO).kInt8
+			case reflect.Int16:
+				fn.fd = (*decoderJsonIO).kInt16
+			case reflect.Int32:
+				fn.fd = (*decoderJsonIO).kInt32
+			case reflect.Int64:
+				fn.fd = (*decoderJsonIO).kInt64
+			case reflect.Uint:
+				fn.fd = (*decoderJsonIO).kUint
+			case reflect.Uint8:
+				fn.fd = (*decoderJsonIO).kUint8
+			case reflect.Uint16:
+				fn.fd = (*decoderJsonIO).kUint16
+			case reflect.Uint32:
+				fn.fd = (*decoderJsonIO).kUint32
+			case reflect.Uint64:
+				fn.fd = (*decoderJsonIO).kUint64
+			case reflect.Uintptr:
+				fn.fd = (*decoderJsonIO).kUintptr
+			case reflect.Float32:
+				fn.fd = (*decoderJsonIO).kFloat32
+			case reflect.Float64:
+				fn.fd = (*decoderJsonIO).kFloat64
+			case reflect.Complex64:
+				fn.fd = (*decoderJsonIO).kComplex64
+			case reflect.Complex128:
+				fn.fd = (*decoderJsonIO).kComplex128
+			case reflect.Chan:
+				fn.fd = (*decoderJsonIO).kChan
+			case reflect.Slice:
+				fn.fd = (*decoderJsonIO).kSlice
+			case reflect.Array:
+				fi.addrD = false
+				fn.fd = (*decoderJsonIO).kArray
+			case reflect.Struct:
+				if ti.simple {
+					fn.fd = (*decoderJsonIO).kStructSimple
+				} else {
+					fn.fd = (*decoderJsonIO).kStruct
+				}
+			case reflect.Map:
+				fn.fd = (*decoderJsonIO).kMap
+			case reflect.Interface:
+
+				fn.fd = (*decoderJsonIO).kInterface
+			default:
+
+				fn.fd = (*decoderJsonIO).kErr
+			}
+		}
+	}
+	return
+}
+func (e *jsonEncDriverIO) writeIndent() {
+	e.w.writen1('\n')
+	x := int(e.di) * int(e.dl)
+	if e.di < 0 {
+		x = -x
+		for x > len(jsonTabs) {
+			e.w.writeb(jsonTabs[:])
+			x -= len(jsonTabs)
+		}
+		e.w.writeb(jsonTabs[:x])
+	} else {
+		for x > len(jsonSpaces) {
+			e.w.writeb(jsonSpaces[:])
+			x -= len(jsonSpaces)
+		}
+		e.w.writeb(jsonSpaces[:x])
+	}
+}
+
+func (e *jsonEncDriverIO) WriteArrayElem(firstTime bool) {
+	if !firstTime {
+		e.w.writen1(',')
+	}
+	if e.d {
+		e.writeIndent()
+	}
+}
+
+func (e *jsonEncDriverIO) WriteMapElemKey(firstTime bool) {
+	if !firstTime {
+		e.w.writen1(',')
+	}
+	if e.d {
+		e.writeIndent()
+	}
+}
+
+func (e *jsonEncDriverIO) WriteMapElemValue() {
+	if e.d {
+		e.w.writen2(':', ' ')
+	} else {
+		e.w.writen1(':')
+	}
+}
+
+func (e *jsonEncDriverIO) EncodeNil() {
+
+	e.w.writeb(jsonNull)
+}
+
+func (e *jsonEncDriverIO) encodeIntAsUint(v int64, quotes bool) {
+	neg := v < 0
+	if neg {
+		v = -v
+	}
+	e.encodeUint(neg, quotes, uint64(v))
+}
+
+func (e *jsonEncDriverIO) EncodeTime(t time.Time) {
+
+	if t.IsZero() {
+		e.EncodeNil()
+		return
+	}
+	switch e.timeFmt {
+	case jsonTimeFmtStringLayout:
+		e.b[0] = '"'
+		b := t.AppendFormat(e.b[1:1], e.timeFmtLayout)
+		e.b[len(b)+1] = '"'
+		e.w.writeb(e.b[:len(b)+2])
+	case jsonTimeFmtUnix:
+		e.encodeIntAsUint(t.Unix(), false)
+	case jsonTimeFmtUnixMilli:
+		e.encodeIntAsUint(t.UnixMilli(), false)
+	case jsonTimeFmtUnixMicro:
+		e.encodeIntAsUint(t.UnixMicro(), false)
+	case jsonTimeFmtUnixNano:
+		e.encodeIntAsUint(t.UnixNano(), false)
+	}
+}
+
+func (e *jsonEncDriverIO) EncodeExt(rv interface{}, basetype reflect.Type, xtag uint64, ext Ext) {
+	if ext == SelfExt {
+		e.enc.encodeAs(rv, basetype, false)
+	} else if v := ext.ConvertExt(rv); v == nil {
+		e.writeNilBytes()
+	} else {
+		e.enc.encodeI(v)
+	}
+}
+
+func (e *jsonEncDriverIO) EncodeRawExt(re *RawExt) {
+	if re.Data != nil {
+		e.w.writeb(re.Data)
+	} else if re.Value != nil {
+		e.enc.encodeI(re.Value)
+	} else {
+		e.EncodeNil()
+	}
+}
+
+func (e *jsonEncDriverIO) EncodeBool(b bool) {
+	e.w.writestr(jsonEncBoolStrs[bool2int(e.ks && e.e.c == containerMapKey)%2][bool2int(b)%2])
+}
+
+func (e *jsonEncDriverIO) encodeFloat(f float64, bitsize, fmt byte, prec int8) {
+	var blen uint
+	if e.ks && e.e.c == containerMapKey {
+		blen = 2 + uint(len(strconv.AppendFloat(e.b[1:1], f, fmt, int(prec), int(bitsize))))
+
+		e.b[0] = '"'
+		e.b[blen-1] = '"'
+		e.w.writeb(e.b[:blen])
+	} else {
+		e.w.writeb(strconv.AppendFloat(e.b[:0], f, fmt, int(prec), int(bitsize)))
+	}
+}
+
+func (e *jsonEncDriverIO) EncodeFloat64(f float64) {
+	if math.IsNaN(f) || math.IsInf(f, 0) {
+		e.EncodeNil()
+		return
+	}
+	fmt, prec := jsonFloatStrconvFmtPrec64(f)
+	e.encodeFloat(f, 64, fmt, prec)
+}
+
+func (e *jsonEncDriverIO) EncodeFloat32(f float32) {
+	if math.IsNaN(float64(f)) || math.IsInf(float64(f), 0) {
+		e.EncodeNil()
+		return
+	}
+	fmt, prec := jsonFloatStrconvFmtPrec32(f)
+	e.encodeFloat(float64(f), 32, fmt, prec)
+}
+
+func (e *jsonEncDriverIO) encodeUint(neg bool, quotes bool, u uint64) {
+	e.w.writeb(jsonEncodeUint(neg, quotes, u, &e.b))
+}
+
+func (e *jsonEncDriverIO) EncodeInt(v int64) {
+	quotes := e.is == 'A' || e.is == 'L' && (v > 1<<53 || v < -(1<<53)) ||
+		(e.ks && e.e.c == containerMapKey)
+
+	if cpu32Bit {
+		if quotes {
+			blen := 2 + len(strconv.AppendInt(e.b[1:1], v, 10))
+			e.b[0] = '"'
+			e.b[blen-1] = '"'
+			e.w.writeb(e.b[:blen])
+		} else {
+			e.w.writeb(strconv.AppendInt(e.b[:0], v, 10))
+		}
+		return
+	}
+
+	if v < 0 {
+		e.encodeUint(true, quotes, uint64(-v))
+	} else {
+		e.encodeUint(false, quotes, uint64(v))
+	}
+}
+
+func (e *jsonEncDriverIO) EncodeUint(v uint64) {
+	quotes := e.is == 'A' || e.is == 'L' && v > 1<<53 ||
+		(e.ks && e.e.c == containerMapKey)
+
+	if cpu32Bit {
+
+		if quotes {
+			blen := 2 + len(strconv.AppendUint(e.b[1:1], v, 10))
+			e.b[0] = '"'
+			e.b[blen-1] = '"'
+			e.w.writeb(e.b[:blen])
+		} else {
+			e.w.writeb(strconv.AppendUint(e.b[:0], v, 10))
+		}
+		return
+	}
+
+	e.encodeUint(false, quotes, v)
+}
+
+func (e *jsonEncDriverIO) EncodeString(v string) {
+	if e.h.StringToRaw {
+		e.EncodeStringBytesRaw(bytesView(v))
+		return
+	}
+	e.quoteStr(v)
+}
+
+func (e *jsonEncDriverIO) EncodeStringNoEscape4Json(v string) { e.w.writeqstr(v) }
+
+func (e *jsonEncDriverIO) EncodeStringBytesRaw(v []byte) {
+	if e.rawext {
+
+		iv := e.h.RawBytesExt.ConvertExt(any(v))
+		if iv == nil {
+			e.EncodeNil()
+		} else {
+			e.enc.encodeI(iv)
+		}
+		return
+	}
+
+	if e.bytesFmt == jsonBytesFmtArray {
+		e.WriteArrayStart(len(v))
+		for j := range v {
+			e.WriteArrayElem(j == 0)
+			e.encodeUint(false, false, uint64(v[j]))
+		}
+		e.WriteArrayEnd()
+		return
+	}
+
+	var slen int
+	if e.bytesFmt == jsonBytesFmtBase64 {
+		slen = base64.StdEncoding.EncodedLen(len(v))
+	} else {
+		slen = e.byteFmter.EncodedLen(len(v))
+	}
+	slen += 2
+
+	bs := e.e.blist.peek(slen, false)[:slen]
+
+	if e.bytesFmt == jsonBytesFmtBase64 {
+		base64.StdEncoding.Encode(bs[1:], v)
+	} else {
+		e.byteFmter.Encode(bs[1:], v)
+	}
+
+	bs[len(bs)-1] = '"'
+	bs[0] = '"'
+	e.w.writeb(bs)
+}
+
+func (e *jsonEncDriverIO) EncodeBytes(v []byte) {
+	if v == nil {
+		e.writeNilBytes()
+		return
+	}
+	e.EncodeStringBytesRaw(v)
+}
+
+func (e *jsonEncDriverIO) writeNilOr(v []byte) {
+	if !e.h.NilCollectionToZeroLength {
+		v = jsonNull
+	}
+	e.w.writeb(v)
+}
+
+func (e *jsonEncDriverIO) writeNilBytes() {
+	e.writeNilOr(jsonArrayEmpty)
+}
+
+func (e *jsonEncDriverIO) writeNilArray() {
+	e.writeNilOr(jsonArrayEmpty)
+}
+
+func (e *jsonEncDriverIO) writeNilMap() {
+	e.writeNilOr(jsonMapEmpty)
+}
+
+func (e *jsonEncDriverIO) WriteArrayEmpty() {
+	e.w.writen2('[', ']')
+}
+
+func (e *jsonEncDriverIO) WriteMapEmpty() {
+	e.w.writen2('{', '}')
+}
+
+func (e *jsonEncDriverIO) WriteArrayStart(length int) {
+	if e.d {
+		e.dl++
+	}
+	e.w.writen1('[')
+}
+
+func (e *jsonEncDriverIO) WriteArrayEnd() {
+	if e.d {
+		e.dl--
+
+		e.writeIndent()
+	}
+	e.w.writen1(']')
+}
+
+func (e *jsonEncDriverIO) WriteMapStart(length int) {
+	if e.d {
+		e.dl++
+	}
+	e.w.writen1('{')
+}
+
+func (e *jsonEncDriverIO) WriteMapEnd() {
+	if e.d {
+		e.dl--
+
+		e.writeIndent()
+	}
+	e.w.writen1('}')
+}
+
+func (e *jsonEncDriverIO) quoteStr(s string) {
+
+	const hex = "0123456789abcdef"
+	e.w.writen1('"')
+	var i, start uint
+	for i < uint(len(s)) {
+
+		b := s[i]
+		if e.s.isset(b) {
+			i++
+			continue
+		}
+		if b < utf8.RuneSelf {
+			if start < i {
+				e.w.writestr(s[start:i])
+			}
+			switch b {
+			case '\\':
+				e.w.writen2('\\', '\\')
+			case '"':
+				e.w.writen2('\\', '"')
+			case '\n':
+				e.w.writen2('\\', 'n')
+			case '\t':
+				e.w.writen2('\\', 't')
+			case '\r':
+				e.w.writen2('\\', 'r')
+			case '\b':
+				e.w.writen2('\\', 'b')
+			case '\f':
+				e.w.writen2('\\', 'f')
+			default:
+				e.w.writestr(`\u00`)
+				e.w.writen2(hex[b>>4], hex[b&0xF])
+			}
+			i++
+			start = i
+			continue
+		}
+		c, size := utf8.DecodeRuneInString(s[i:])
+		if c == utf8.RuneError && size == 1 {
+			if start < i {
+				e.w.writestr(s[start:i])
+			}
+			e.w.writestr(`\uFFFD`)
+			i++
+			start = i
+			continue
+		}
+
+		if jsonEscapeMultiByteUnicodeSep && (c == '\u2028' || c == '\u2029') {
+			if start < i {
+				e.w.writestr(s[start:i])
+			}
+			e.w.writestr(`\u202`)
+			e.w.writen1(hex[c&0xF])
+			i += uint(size)
+			start = i
+			continue
+		}
+		i += uint(size)
+	}
+	if start < uint(len(s)) {
+		e.w.writestr(s[start:])
+	}
+	e.w.writen1('"')
+}
+
+func (e *jsonEncDriverIO) atEndOfEncode() {
+	if e.h.TermWhitespace {
+		var c byte = ' '
+		if e.e.c != 0 {
+			c = '\n'
+		}
+		e.w.writen1(c)
+	}
+}
+
+func (d *jsonDecDriverIO) ReadMapStart() int {
+	d.advance()
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return containerLenNil
+	}
+	if d.tok != '{' {
+		halt.errorByte("read map - expect char '{' but got char: ", d.tok)
+	}
+	d.tok = 0
+	return containerLenUnknown
+}
+
+func (d *jsonDecDriverIO) ReadArrayStart() int {
+	d.advance()
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return containerLenNil
+	}
+	if d.tok != '[' {
+		halt.errorByte("read array - expect char '[' but got char ", d.tok)
+	}
+	d.tok = 0
+	return containerLenUnknown
+}
+
+func (d *jsonDecDriverIO) CheckBreak() bool {
+	d.advance()
+	return d.tok == '}' || d.tok == ']'
+}
+
+func (d *jsonDecDriverIO) checkSep(xc byte) {
+	d.advance()
+	if d.tok != xc {
+		d.readDelimError(xc)
+	}
+	d.tok = 0
+}
+
+func (d *jsonDecDriverIO) ReadArrayElem(firstTime bool) {
+	if !firstTime {
+		d.checkSep(',')
+	}
+}
+
+func (d *jsonDecDriverIO) ReadArrayEnd() {
+	d.checkSep(']')
+}
+
+func (d *jsonDecDriverIO) ReadMapElemKey(firstTime bool) {
+	d.ReadArrayElem(firstTime)
+}
+
+func (d *jsonDecDriverIO) ReadMapElemValue() {
+	d.checkSep(':')
+}
+
+func (d *jsonDecDriverIO) ReadMapEnd() {
+	d.checkSep('}')
+}
+
+func (d *jsonDecDriverIO) readDelimError(xc uint8) {
+	halt.errorf("read json delimiter - expect char '%c' but got char '%c'", xc, d.tok)
+}
+
+func (d *jsonDecDriverIO) checkLit3(got, expect [3]byte) {
+	if jsonValidateSymbols && got != expect {
+		jsonCheckLitErr3(got, expect)
+	}
+	d.tok = 0
+}
+
+func (d *jsonDecDriverIO) checkLit4(got, expect [4]byte) {
+	if jsonValidateSymbols && got != expect {
+		jsonCheckLitErr4(got, expect)
+	}
+	d.tok = 0
+}
+
+func (d *jsonDecDriverIO) skipWhitespace() {
+	d.tok = d.r.skipWhitespace()
+}
+
+func (d *jsonDecDriverIO) advance() {
+
+	if d.tok < 33 {
+		d.skipWhitespace()
+	}
+}
+
+func (d *jsonDecDriverIO) nextValueBytes() []byte {
+	consumeString := func() {
+	TOP:
+		_, c := d.r.jsonReadAsisChars()
+		if c == '\\' {
+			d.r.readn1()
+			goto TOP
+		}
+	}
+
+	d.advance()
+	d.r.startRecording()
+
+	switch d.tok {
+	default:
+		_, d.tok = d.r.jsonReadNum()
+	case 'n':
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+	case 'f':
+		d.checkLit4([4]byte{'a', 'l', 's', 'e'}, d.r.readn4())
+	case 't':
+		d.checkLit3([3]byte{'r', 'u', 'e'}, d.r.readn3())
+	case '"':
+		consumeString()
+		d.tok = 0
+	case '{', '[':
+		var elem struct{}
+		var stack []struct{}
+
+		stack = append(stack, elem)
+
+		for len(stack) != 0 {
+			c := d.r.readn1()
+			switch c {
+			case '"':
+				consumeString()
+			case '{', '[':
+				stack = append(stack, elem)
+			case '}', ']':
+				stack = stack[:len(stack)-1]
+			}
+		}
+		d.tok = 0
+	}
+	return d.r.stopRecording()
+}
+
+func (d *jsonDecDriverIO) TryNil() bool {
+	d.advance()
+
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return true
+	}
+	return false
+}
+
+func (d *jsonDecDriverIO) DecodeBool() (v bool) {
+	d.advance()
+
+	fquot := d.d.c == containerMapKey && d.tok == '"'
+	if fquot {
+		d.tok = d.r.readn1()
+	}
+	switch d.tok {
+	case 'f':
+		d.checkLit4([4]byte{'a', 'l', 's', 'e'}, d.r.readn4())
+
+	case 't':
+		d.checkLit3([3]byte{'r', 'u', 'e'}, d.r.readn3())
+		v = true
+	case 'n':
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+
+	default:
+		halt.errorByte("decode bool: got first char: ", d.tok)
+
+	}
+	if fquot {
+		d.r.readn1()
+	}
+	return
+}
+
+func (d *jsonDecDriverIO) DecodeTime() (t time.Time) {
+
+	d.advance()
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return
+	}
+	var bs []byte
+
+	if d.tok != '"' {
+		bs, d.tok = d.r.jsonReadNum()
+		i := d.parseInt64(bs)
+		switch d.timeFmtNum {
+		case jsonTimeFmtUnix:
+			t = time.Unix(i, 0)
+		case jsonTimeFmtUnixMilli:
+			t = time.UnixMilli(i)
+		case jsonTimeFmtUnixMicro:
+			t = time.UnixMicro(i)
+		case jsonTimeFmtUnixNano:
+			t = time.Unix(0, i)
+		default:
+			halt.errorStr("invalid timeFmtNum")
+		}
+		return
+	}
+
+	bs = d.readUnescapedString()
+	var err error
+	for _, v := range d.timeFmtLayouts {
+		t, err = time.Parse(v, stringView(bs))
+		if err == nil {
+			return
+		}
+	}
+	halt.errorStr("error decoding time")
+	return
+}
+
+func (d *jsonDecDriverIO) ContainerType() (vt valueType) {
+
+	d.advance()
+
+	if d.tok == '{' {
+		return valueTypeMap
+	} else if d.tok == '[' {
+		return valueTypeArray
+	} else if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return valueTypeNil
+	} else if d.tok == '"' {
+		return valueTypeString
+	}
+	return valueTypeUnset
+}
+
+func (d *jsonDecDriverIO) decNumBytes() (bs []byte) {
+	d.advance()
+	if d.tok == '"' {
+		bs = d.r.jsonReadUntilDblQuote()
+		d.tok = 0
+	} else if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+	} else {
+		bs, d.tok = d.r.jsonReadNum()
+	}
+	return
+}
+
+func (d *jsonDecDriverIO) DecodeUint64() (u uint64) {
+	b := d.decNumBytes()
+	u, neg, ok := parseInteger_bytes(b)
+	if neg {
+		halt.errorf("negative number cannot be decoded as uint64: %s", any(b))
+	}
+	if !ok {
+		halt.onerror(strconvParseErr(b, "ParseUint"))
+	}
+	return
+}
+
+func (d *jsonDecDriverIO) DecodeInt64() (v int64) {
+	return d.parseInt64(d.decNumBytes())
+}
+
+func (d *jsonDecDriverIO) parseInt64(b []byte) (v int64) {
+	u, neg, ok := parseInteger_bytes(b)
+	if !ok {
+		halt.onerror(strconvParseErr(b, "ParseInt"))
+	}
+	if chkOvf.Uint2Int(u, neg) {
+		halt.errorBytes("overflow decoding number from ", b)
+	}
+	if neg {
+		v = -int64(u)
+	} else {
+		v = int64(u)
+	}
+	return
+}
+
+func (d *jsonDecDriverIO) DecodeFloat64() (f float64) {
+	var err error
+	bs := d.decNumBytes()
+	if len(bs) == 0 {
+		return
+	}
+	f, err = parseFloat64(bs)
+	halt.onerror(err)
+	return
+}
+
+func (d *jsonDecDriverIO) DecodeFloat32() (f float32) {
+	var err error
+	bs := d.decNumBytes()
+	if len(bs) == 0 {
+		return
+	}
+	f, err = parseFloat32(bs)
+	halt.onerror(err)
+	return
+}
+
+func (d *jsonDecDriverIO) advanceNil() (ok bool) {
+	d.advance()
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return true
+	}
+	return false
+}
+
+func (d *jsonDecDriverIO) DecodeExt(rv interface{}, basetype reflect.Type, xtag uint64, ext Ext) {
+	if d.advanceNil() {
+		return
+	}
+	if ext == SelfExt {
+		d.dec.decodeAs(rv, basetype, false)
+	} else {
+		d.dec.interfaceExtConvertAndDecode(rv, ext)
+	}
+}
+
+func (d *jsonDecDriverIO) DecodeRawExt(re *RawExt) {
+	if d.advanceNil() {
+		return
+	}
+	d.dec.decode(&re.Value)
+}
+
+func (d *jsonDecDriverIO) decBytesFromArray(bs []byte) []byte {
+	d.advance()
+	if d.tok != ']' {
+		bs = append(bs, uint8(d.DecodeUint64()))
+		d.advance()
+	}
+	for d.tok != ']' {
+		if d.tok != ',' {
+			halt.errorByte("read array element - expect char ',' but got char: ", d.tok)
+		}
+		d.tok = 0
+		bs = append(bs, uint8(chkOvf.UintV(d.DecodeUint64(), 8)))
+		d.advance()
+	}
+	d.tok = 0
+	return bs
+}
+
+func (d *jsonDecDriverIO) DecodeBytes() (bs []byte, state dBytesAttachState) {
+	d.advance()
+	state = dBytesDetach
+	if d.tok == 'n' {
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		return
+	}
+	state = dBytesAttachBuffer
+
+	if d.rawext {
+		d.buf = d.buf[:0]
+		d.dec.interfaceExtConvertAndDecode(&d.buf, d.h.RawBytesExt)
+		bs = d.buf
+		return
+	}
+
+	if d.tok == '[' {
+		d.tok = 0
+
+		bs = d.decBytesFromArray(d.buf[:0])
+		d.buf = bs
+		return
+	}
+
+	d.ensureReadingString()
+	bs1 := d.readUnescapedString()
+
+	slen := base64.StdEncoding.DecodedLen(len(bs1))
+	if slen == 0 {
+		bs = zeroByteSlice
+		state = dBytesDetach
+	} else if slen <= cap(d.buf) {
+		bs = d.buf[:slen]
+	} else {
+		d.buf = d.d.blist.putGet(d.buf, slen)[:slen]
+		bs = d.buf
+	}
+	var err error
+	for _, v := range d.byteFmters {
+
+		slen, err = v.Decode(bs, bs1)
+		if err == nil {
+			bs = bs[:slen]
+			return
+		}
+	}
+	halt.errorf("error decoding byte string '%s': %v", any(bs1), err)
+	return
+}
+
+func (d *jsonDecDriverIO) DecodeStringAsBytes() (bs []byte, state dBytesAttachState) {
+	d.advance()
+
+	var cond bool
+
+	if d.tok == '"' {
+		d.tok = 0
+		bs, cond = d.dblQuoteStringAsBytes()
+		state = d.d.attachState(cond)
+		return
+	}
+
+	state = dBytesDetach
+
+	switch d.tok {
+	case 'n':
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+
+	case 'f':
+		d.checkLit4([4]byte{'a', 'l', 's', 'e'}, d.r.readn4())
+		bs = jsonLitb[jsonLitF : jsonLitF+5]
+	case 't':
+		d.checkLit3([3]byte{'r', 'u', 'e'}, d.r.readn3())
+		bs = jsonLitb[jsonLitT : jsonLitT+4]
+	default:
+
+		bs, d.tok = d.r.jsonReadNum()
+		state = d.d.attachState(!d.d.bytes)
+	}
+	return
+}
+
+func (d *jsonDecDriverIO) ensureReadingString() {
+	if d.tok != '"' {
+		halt.errorByte("expecting string starting with '\"'; got ", d.tok)
+	}
+}
+
+func (d *jsonDecDriverIO) readUnescapedString() (bs []byte) {
+
+	bs = d.r.jsonReadUntilDblQuote()
+	d.tok = 0
+	return
+}
+
+func (d *jsonDecDriverIO) dblQuoteStringAsBytes() (buf []byte, usingBuf bool) {
+	bs, c := d.r.jsonReadAsisChars()
+	if c == '"' {
+		return bs, !d.d.bytes
+	}
+	buf = append(d.buf[:0], bs...)
+
+	checkUtf8 := d.h.ValidateUnicode
+	usingBuf = true
+
+	for {
+
+		c = d.r.readn1()
+
+		switch c {
+		case '"', '\\', '/', '\'':
+			buf = append(buf, c)
+		case 'b':
+			buf = append(buf, '\b')
+		case 'f':
+			buf = append(buf, '\f')
+		case 'n':
+			buf = append(buf, '\n')
+		case 'r':
+			buf = append(buf, '\r')
+		case 't':
+			buf = append(buf, '\t')
+		case 'u':
+			rr := d.appendStringAsBytesSlashU()
+			if checkUtf8 && rr == unicode.ReplacementChar {
+				d.buf = buf
+				halt.errorBytes("invalid UTF-8 character found after: ", buf)
+			}
+			buf = append(buf, d.bstr[:utf8.EncodeRune(d.bstr[:], rr)]...)
+		default:
+			d.buf = buf
+			halt.errorByte("unsupported escaped value: ", c)
+		}
+
+		bs, c = d.r.jsonReadAsisChars()
+		buf = append(buf, bs...)
+		if c == '"' {
+			break
+		}
+	}
+	d.buf = buf
+	return
+}
+
+func (d *jsonDecDriverIO) appendStringAsBytesSlashU() (r rune) {
+	var rr uint32
+	cs := d.r.readn4()
+	if rr = jsonSlashURune(cs); rr == unicode.ReplacementChar {
+		return unicode.ReplacementChar
+	}
+	r = rune(rr)
+	if utf16.IsSurrogate(r) {
+		csu := d.r.readn2()
+		cs = d.r.readn4()
+		if csu[0] == '\\' && csu[1] == 'u' {
+			if rr = jsonSlashURune(cs); rr == unicode.ReplacementChar {
+				return unicode.ReplacementChar
+			}
+			return utf16.DecodeRune(r, rune(rr))
+		}
+		return unicode.ReplacementChar
+	}
+	return
+}
+
+func (d *jsonDecDriverIO) DecodeNaked() {
+	z := d.d.naked()
+
+	d.advance()
+	var bs []byte
+	var err error
+	switch d.tok {
+	case 'n':
+		d.checkLit3([3]byte{'u', 'l', 'l'}, d.r.readn3())
+		z.v = valueTypeNil
+	case 'f':
+		d.checkLit4([4]byte{'a', 'l', 's', 'e'}, d.r.readn4())
+		z.v = valueTypeBool
+		z.b = false
+	case 't':
+		d.checkLit3([3]byte{'r', 'u', 'e'}, d.r.readn3())
+		z.v = valueTypeBool
+		z.b = true
+	case '{':
+		z.v = valueTypeMap
+	case '[':
+		z.v = valueTypeArray
+	case '"':
+
+		d.tok = 0
+		bs, z.b = d.dblQuoteStringAsBytes()
+		att := d.d.attachState(z.b)
+		if jsonNakedBoolNumInQuotedStr &&
+			d.h.MapKeyAsString && len(bs) > 0 && d.d.c == containerMapKey {
+			switch string(bs) {
+
+			case "true":
+				z.v = valueTypeBool
+				z.b = true
+			case "false":
+				z.v = valueTypeBool
+				z.b = false
+			default:
+				if err = jsonNakedNum(z, bs, d.h.PreferFloat, d.h.SignedInteger); err != nil {
+					z.v = valueTypeString
+					z.s = d.d.detach2Str(bs, att)
+				}
+			}
+		} else {
+			z.v = valueTypeString
+			z.s = d.d.detach2Str(bs, att)
+		}
+	default:
+		bs, d.tok = d.r.jsonReadNum()
+		if len(bs) == 0 {
+			halt.errorStr("decode number from empty string")
+		}
+		if err = jsonNakedNum(z, bs, d.h.PreferFloat, d.h.SignedInteger); err != nil {
+			halt.errorf("decode number from %s: %v", any(bs), err)
+		}
+	}
+}
+
+func (e *jsonEncDriverIO) reset() {
+	e.dl = 0
+
+	e.typical = e.h.typical()
+	if e.h.HTMLCharsAsIs {
+		e.s = &jsonCharSafeBitset
+	} else {
+		e.s = &jsonCharHtmlSafeBitset
+	}
+	e.di = int8(e.h.Indent)
+	e.d = e.h.Indent != 0
+	e.ks = e.h.MapKeyAsString
+	e.is = e.h.IntegerAsString
+
+	var ho jsonHandleOpts
+	ho.reset(e.h)
+	e.timeFmt = ho.timeFmt
+	e.bytesFmt = ho.bytesFmt
+	e.timeFmtLayout = ""
+	e.byteFmter = nil
+	if len(ho.timeFmtLayouts) > 0 {
+		e.timeFmtLayout = ho.timeFmtLayouts[0]
+	}
+	if len(ho.byteFmters) > 0 {
+		e.byteFmter = ho.byteFmters[0]
+	}
+	e.rawext = ho.rawext
+}
+
+func (d *jsonDecDriverIO) reset() {
+	d.buf = d.d.blist.check(d.buf, 256)
+	d.tok = 0
+
+	d.jsonHandleOpts.reset(d.h)
+}
+
+func (d *jsonEncDriverIO) init(hh Handle, shared *encoderBase, enc encoderI) (fp interface{}) {
+	callMake(&d.w)
+	d.h = hh.(*JsonHandle)
+	d.e = shared
+	if shared.bytes {
+		fp = jsonFpEncBytes
+	} else {
+		fp = jsonFpEncIO
+	}
+
+	d.init2(enc)
+	return
+}
+
+func (e *jsonEncDriverIO) writeBytesAsis(b []byte) { e.w.writeb(b) }
+
+func (e *jsonEncDriverIO) writerEnd() { e.w.end() }
+
+func (e *jsonEncDriverIO) resetOutBytes(out *[]byte) {
+	e.w.resetBytes(*out, out)
+}
+
+func (e *jsonEncDriverIO) resetOutIO(out io.Writer) {
+	e.w.resetIO(out, e.h.WriterBufferSize, &e.e.blist)
+}
+
+func (d *jsonDecDriverIO) init(hh Handle, shared *decoderBase, dec decoderI) (fp interface{}) {
+	callMake(&d.r)
+	d.h = hh.(*JsonHandle)
+	d.d = shared
+	if shared.bytes {
+		fp = jsonFpDecBytes
+	} else {
+		fp = jsonFpDecIO
+	}
+
+	d.init2(dec)
+	return
+}
+
+func (d *jsonDecDriverIO) NumBytesRead() int {
+	return int(d.r.numread())
+}
+
+func (d *jsonDecDriverIO) resetInBytes(in []byte) {
+	d.r.resetBytes(in)
+}
+
+func (d *jsonDecDriverIO) resetInIO(r io.Reader) {
+	d.r.resetIO(r, d.h.ReaderBufferSize, d.h.MaxInitLen, &d.d.blist)
+}
+
+func (d *jsonDecDriverIO) descBd() (s string) {
+	halt.onerror(errJsonNoBd)
+	return
+}
+
+func (d *jsonEncDriverIO) init2(enc encoderI) {
+	d.enc = enc
+
+}
+
+func (d *jsonDecDriverIO) init2(dec decoderI) {
+	d.dec = dec
+
+	d.buf = d.buf[:0]
+
+	d.d.jsms = d.h.MapKeyAsString
+}