[chore] remove vendor

1 files changed, 0 insertions, 966 deletions

diff --git a/vendor/github.com/ugorji/go/codec/cbor.go b/vendor/github.com/ugorji/go/codec/cbor.go
deleted file mode 100644
index 802b1fc1d..000000000
--- a/vendor/github.com/ugorji/go/codec/cbor.go
+++ /dev/null
@@ -1,966 +0,0 @@
-// 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 (
-	"math"
-	"reflect"
-	"time"
-	"unicode/utf8"
-)
-
-// major
-const (
-	cborMajorUint byte = iota
-	cborMajorNegInt
-	cborMajorBytes
-	cborMajorString
-	cborMajorArray
-	cborMajorMap
-	cborMajorTag
-	cborMajorSimpleOrFloat
-)
-
-// simple
-const (
-	cborBdFalse byte = 0xf4 + iota
-	cborBdTrue
-	cborBdNil
-	cborBdUndefined
-	cborBdExt
-	cborBdFloat16
-	cborBdFloat32
-	cborBdFloat64
-)
-
-// indefinite
-const (
-	cborBdIndefiniteBytes  byte = 0x5f
-	cborBdIndefiniteString byte = 0x7f
-	cborBdIndefiniteArray  byte = 0x9f
-	cborBdIndefiniteMap    byte = 0xbf
-	cborBdBreak            byte = 0xff
-)
-
-// These define some in-stream descriptors for
-// manual encoding e.g. when doing explicit indefinite-length
-const (
-	CborStreamBytes  byte = 0x5f
-	CborStreamString byte = 0x7f
-	CborStreamArray  byte = 0x9f
-	CborStreamMap    byte = 0xbf
-	CborStreamBreak  byte = 0xff
-)
-
-// base values
-const (
-	cborBaseUint   byte = 0x00
-	cborBaseNegInt byte = 0x20
-	cborBaseBytes  byte = 0x40
-	cborBaseString byte = 0x60
-	cborBaseArray  byte = 0x80
-	cborBaseMap    byte = 0xa0
-	cborBaseTag    byte = 0xc0
-	cborBaseSimple byte = 0xe0
-)
-
-// const (
-// 	cborSelfDesrTag  byte = 0xd9
-// 	cborSelfDesrTag2 byte = 0xd9
-// 	cborSelfDesrTag3 byte = 0xf7
-// )
-
-var (
-	cbordescSimpleNames = map[byte]string{
-		cborBdNil:     "nil",
-		cborBdFalse:   "false",
-		cborBdTrue:    "true",
-		cborBdFloat16: "float",
-		cborBdFloat32: "float",
-		cborBdFloat64: "float",
-		cborBdBreak:   "break",
-	}
-	cbordescIndefNames = map[byte]string{
-		cborBdIndefiniteBytes:  "bytes*",
-		cborBdIndefiniteString: "string*",
-		cborBdIndefiniteArray:  "array*",
-		cborBdIndefiniteMap:    "map*",
-	}
-	cbordescMajorNames = map[byte]string{
-		cborMajorUint:          "(u)int",
-		cborMajorNegInt:        "int",
-		cborMajorBytes:         "bytes",
-		cborMajorString:        "string",
-		cborMajorArray:         "array",
-		cborMajorMap:           "map",
-		cborMajorTag:           "tag",
-		cborMajorSimpleOrFloat: "simple",
-	}
-)
-
-func cbordesc(bd byte) (s string) {
-	bm := bd >> 5
-	if bm == cborMajorSimpleOrFloat {
-		s = cbordescSimpleNames[bd]
-	} else {
-		s = cbordescMajorNames[bm]
-		if s == "" {
-			s = cbordescIndefNames[bd]
-		}
-	}
-	if s == "" {
-		s = "unknown"
-	}
-	return
-}
-
-// -------------------
-
-type cborEncDriver struct {
-	noBuiltInTypes
-	encDriverNoState
-	encDriverNoopContainerWriter
-	h *CborHandle
-
-	// scratch buffer for: encode time, numbers, etc
-	//
-	// RFC3339Nano uses 35 chars: 2006-01-02T15:04:05.999999999Z07:00
-	b [40]byte
-
-	e Encoder
-}
-
-func (e *cborEncDriver) encoder() *Encoder {
-	return &e.e
-}
-
-func (e *cborEncDriver) EncodeNil() {
-	e.e.encWr.writen1(cborBdNil)
-}
-
-func (e *cborEncDriver) EncodeBool(b bool) {
-	if b {
-		e.e.encWr.writen1(cborBdTrue)
-	} else {
-		e.e.encWr.writen1(cborBdFalse)
-	}
-}
-
-func (e *cborEncDriver) EncodeFloat32(f float32) {
-	b := math.Float32bits(f)
-	if e.h.OptimumSize {
-		if h := floatToHalfFloatBits(b); halfFloatToFloatBits(h) == b {
-			e.e.encWr.writen1(cborBdFloat16)
-			bigen.writeUint16(e.e.w(), h)
-			return
-		}
-	}
-	e.e.encWr.writen1(cborBdFloat32)
-	bigen.writeUint32(e.e.w(), b)
-}
-
-func (e *cborEncDriver) EncodeFloat64(f float64) {
-	if e.h.OptimumSize {
-		if f32 := float32(f); float64(f32) == f {
-			e.EncodeFloat32(f32)
-			return
-		}
-	}
-	e.e.encWr.writen1(cborBdFloat64)
-	bigen.writeUint64(e.e.w(), math.Float64bits(f))
-}
-
-func (e *cborEncDriver) encUint(v uint64, bd byte) {
-	if v <= 0x17 {
-		e.e.encWr.writen1(byte(v) + bd)
-	} else if v <= math.MaxUint8 {
-		e.e.encWr.writen2(bd+0x18, uint8(v))
-	} else if v <= math.MaxUint16 {
-		e.e.encWr.writen1(bd + 0x19)
-		bigen.writeUint16(e.e.w(), uint16(v))
-	} else if v <= math.MaxUint32 {
-		e.e.encWr.writen1(bd + 0x1a)
-		bigen.writeUint32(e.e.w(), uint32(v))
-	} else { // if v <= math.MaxUint64 {
-		e.e.encWr.writen1(bd + 0x1b)
-		bigen.writeUint64(e.e.w(), v)
-	}
-}
-
-func (e *cborEncDriver) EncodeInt(v int64) {
-	if v < 0 {
-		e.encUint(uint64(-1-v), cborBaseNegInt)
-	} else {
-		e.encUint(uint64(v), cborBaseUint)
-	}
-}
-
-func (e *cborEncDriver) EncodeUint(v uint64) {
-	e.encUint(v, cborBaseUint)
-}
-
-func (e *cborEncDriver) encLen(bd byte, length int) {
-	e.encUint(uint64(length), bd)
-}
-
-func (e *cborEncDriver) EncodeTime(t time.Time) {
-	if t.IsZero() {
-		e.EncodeNil()
-	} else if e.h.TimeRFC3339 {
-		e.encUint(0, cborBaseTag)
-		e.encStringBytesS(cborBaseString, stringView(fmtTime(t, time.RFC3339Nano, e.b[:0])))
-	} else {
-		e.encUint(1, cborBaseTag)
-		t = t.UTC().Round(time.Microsecond)
-		sec, nsec := t.Unix(), uint64(t.Nanosecond())
-		if nsec == 0 {
-			e.EncodeInt(sec)
-		} else {
-			e.EncodeFloat64(float64(sec) + float64(nsec)/1e9)
-		}
-	}
-}
-
-func (e *cborEncDriver) EncodeExt(rv interface{}, basetype reflect.Type, xtag uint64, ext Ext) {
-	e.encUint(uint64(xtag), cborBaseTag)
-	if ext == SelfExt {
-		e.e.encodeValue(baseRV(rv), e.h.fnNoExt(basetype))
-	} else if v := ext.ConvertExt(rv); v == nil {
-		e.EncodeNil()
-	} else {
-		e.e.encode(v)
-	}
-}
-
-func (e *cborEncDriver) EncodeRawExt(re *RawExt) {
-	e.encUint(uint64(re.Tag), cborBaseTag)
-	// only encodes re.Value (never re.Data)
-	if re.Value != nil {
-		e.e.encode(re.Value)
-	} else {
-		e.EncodeNil()
-	}
-}
-
-func (e *cborEncDriver) WriteArrayStart(length int) {
-	if e.h.IndefiniteLength {
-		e.e.encWr.writen1(cborBdIndefiniteArray)
-	} else {
-		e.encLen(cborBaseArray, length)
-	}
-}
-
-func (e *cborEncDriver) WriteMapStart(length int) {
-	if e.h.IndefiniteLength {
-		e.e.encWr.writen1(cborBdIndefiniteMap)
-	} else {
-		e.encLen(cborBaseMap, length)
-	}
-}
-
-func (e *cborEncDriver) WriteMapEnd() {
-	if e.h.IndefiniteLength {
-		e.e.encWr.writen1(cborBdBreak)
-	}
-}
-
-func (e *cborEncDriver) WriteArrayEnd() {
-	if e.h.IndefiniteLength {
-		e.e.encWr.writen1(cborBdBreak)
-	}
-}
-
-func (e *cborEncDriver) EncodeString(v string) {
-	bb := cborBaseString
-	if e.h.StringToRaw {
-		bb = cborBaseBytes
-	}
-	e.encStringBytesS(bb, v)
-}
-
-func (e *cborEncDriver) EncodeStringBytesRaw(v []byte) {
-	if v == nil {
-		e.EncodeNil()
-	} else {
-		e.encStringBytesS(cborBaseBytes, stringView(v))
-	}
-}
-
-func (e *cborEncDriver) encStringBytesS(bb byte, v string) {
-	if e.h.IndefiniteLength {
-		if bb == cborBaseBytes {
-			e.e.encWr.writen1(cborBdIndefiniteBytes)
-		} else {
-			e.e.encWr.writen1(cborBdIndefiniteString)
-		}
-		var vlen uint = uint(len(v))
-		blen := vlen / 4
-		if blen == 0 {
-			blen = 64
-		} else if blen > 1024 {
-			blen = 1024
-		}
-		for i := uint(0); i < vlen; {
-			var v2 string
-			i2 := i + blen
-			if i2 >= i && i2 < vlen {
-				v2 = v[i:i2]
-			} else {
-				v2 = v[i:]
-			}
-			e.encLen(bb, len(v2))
-			e.e.encWr.writestr(v2)
-			i = i2
-		}
-		e.e.encWr.writen1(cborBdBreak)
-	} else {
-		e.encLen(bb, len(v))
-		e.e.encWr.writestr(v)
-	}
-}
-
-// ----------------------
-
-type cborDecDriver struct {
-	decDriverNoopContainerReader
-	decDriverNoopNumberHelper
-	h *CborHandle
-	bdAndBdread
-	st bool // skip tags
-	_  bool // found nil
-	noBuiltInTypes
-	d Decoder
-}
-
-func (d *cborDecDriver) decoder() *Decoder {
-	return &d.d
-}
-
-func (d *cborDecDriver) descBd() string {
-	return sprintf("%v (%s)", d.bd, cbordesc(d.bd))
-}
-
-func (d *cborDecDriver) readNextBd() {
-	d.bd = d.d.decRd.readn1()
-	d.bdRead = true
-}
-
-func (d *cborDecDriver) advanceNil() (null bool) {
-	if !d.bdRead {
-		d.readNextBd()
-	}
-	if d.bd == cborBdNil || d.bd == cborBdUndefined {
-		d.bdRead = false
-		return true // null = true
-	}
-	return
-}
-
-func (d *cborDecDriver) TryNil() bool {
-	return d.advanceNil()
-}
-
-// skipTags is called to skip any tags in the stream.
-//
-// Since any value can be tagged, then we should call skipTags
-// before any value is decoded.
-//
-// By definition, skipTags should not be called before
-// checking for break, or nil or undefined.
-func (d *cborDecDriver) skipTags() {
-	for d.bd>>5 == cborMajorTag {
-		d.decUint()
-		d.bd = d.d.decRd.readn1()
-	}
-}
-
-func (d *cborDecDriver) ContainerType() (vt valueType) {
-	if !d.bdRead {
-		d.readNextBd()
-	}
-	if d.st {
-		d.skipTags()
-	}
-	if d.bd == cborBdNil {
-		d.bdRead = false // always consume nil after seeing it in container type
-		return valueTypeNil
-	}
-	major := d.bd >> 5
-	if major == cborMajorBytes {
-		return valueTypeBytes
-	} else if major == cborMajorString {
-		return valueTypeString
-	} else if major == cborMajorArray {
-		return valueTypeArray
-	} else if major == cborMajorMap {
-		return valueTypeMap
-	}
-	return valueTypeUnset
-}
-
-func (d *cborDecDriver) CheckBreak() (v bool) {
-	if !d.bdRead {
-		d.readNextBd()
-	}
-	if d.bd == cborBdBreak {
-		d.bdRead = false
-		v = true
-	}
-	return
-}
-
-func (d *cborDecDriver) decUint() (ui uint64) {
-	v := d.bd & 0x1f
-	if v <= 0x17 {
-		ui = uint64(v)
-	} else if v == 0x18 {
-		ui = uint64(d.d.decRd.readn1())
-	} else if v == 0x19 {
-		ui = uint64(bigen.Uint16(d.d.decRd.readn2()))
-	} else if v == 0x1a {
-		ui = uint64(bigen.Uint32(d.d.decRd.readn4()))
-	} else if v == 0x1b {
-		ui = uint64(bigen.Uint64(d.d.decRd.readn8()))
-	} else {
-		d.d.errorf("invalid descriptor decoding uint: %x/%s", d.bd, cbordesc(d.bd))
-	}
-	return
-}
-
-func (d *cborDecDriver) decLen() int {
-	return int(d.decUint())
-}
-
-func (d *cborDecDriver) decAppendIndefiniteBytes(bs []byte, major byte) []byte {
-	d.bdRead = false
-	for !d.CheckBreak() {
-		chunkMajor := d.bd >> 5
-		if chunkMajor != major {
-			d.d.errorf("malformed indefinite string/bytes %x (%s); contains chunk with major type %v, expected %v",
-				d.bd, cbordesc(d.bd), chunkMajor, major)
-		}
-		n := uint(d.decLen())
-		oldLen := uint(len(bs))
-		newLen := oldLen + n
-		if newLen > uint(cap(bs)) {
-			bs2 := make([]byte, newLen, 2*uint(cap(bs))+n)
-			copy(bs2, bs)
-			bs = bs2
-		} else {
-			bs = bs[:newLen]
-		}
-		d.d.decRd.readb(bs[oldLen:newLen])
-		if d.h.ValidateUnicode && major == cborMajorString && !utf8.Valid(bs[oldLen:newLen]) {
-			d.d.errorf("indefinite-length text string contains chunk that is not a valid utf-8 sequence: 0x%x", bs[oldLen:newLen])
-		}
-		d.bdRead = false
-	}
-	d.bdRead = false
-	return bs
-}
-
-func (d *cborDecDriver) decFloat() (f float64, ok bool) {
-	ok = true
-	switch d.bd {
-	case cborBdFloat16:
-		f = float64(math.Float32frombits(halfFloatToFloatBits(bigen.Uint16(d.d.decRd.readn2()))))
-	case cborBdFloat32:
-		f = float64(math.Float32frombits(bigen.Uint32(d.d.decRd.readn4())))
-	case cborBdFloat64:
-		f = math.Float64frombits(bigen.Uint64(d.d.decRd.readn8()))
-	default:
-		ok = false
-	}
-	return
-}
-
-func (d *cborDecDriver) decInteger() (ui uint64, neg, ok bool) {
-	ok = true
-	switch d.bd >> 5 {
-	case cborMajorUint:
-		ui = d.decUint()
-	case cborMajorNegInt:
-		ui = d.decUint()
-		neg = true
-	default:
-		ok = false
-	}
-	return
-}
-
-func (d *cborDecDriver) DecodeInt64() (i int64) {
-	if d.advanceNil() {
-		return
-	}
-	if d.st {
-		d.skipTags()
-	}
-	i = decNegintPosintFloatNumberHelper{&d.d}.int64(d.decInteger())
-	d.bdRead = false
-	return
-}
-
-func (d *cborDecDriver) DecodeUint64() (ui uint64) {
-	if d.advanceNil() {
-		return
-	}
-	if d.st {
-		d.skipTags()
-	}
-	ui = decNegintPosintFloatNumberHelper{&d.d}.uint64(d.decInteger())
-	d.bdRead = false
-	return
-}
-
-func (d *cborDecDriver) DecodeFloat64() (f float64) {
-	if d.advanceNil() {
-		return
-	}
-	if d.st {
-		d.skipTags()
-	}
-	f = decNegintPosintFloatNumberHelper{&d.d}.float64(d.decFloat())
-	d.bdRead = false
-	return
-}
-
-// bool can be decoded from bool only (single byte).
-func (d *cborDecDriver) DecodeBool() (b bool) {
-	if d.advanceNil() {
-		return
-	}
-	if d.st {
-		d.skipTags()
-	}
-	if d.bd == cborBdTrue {
-		b = true
-	} else if d.bd == cborBdFalse {
-	} else {
-		d.d.errorf("not bool - %s %x/%s", msgBadDesc, d.bd, cbordesc(d.bd))
-	}
-	d.bdRead = false
-	return
-}
-
-func (d *cborDecDriver) ReadMapStart() (length int) {
-	if d.advanceNil() {
-		return containerLenNil
-	}
-	if d.st {
-		d.skipTags()
-	}
-	d.bdRead = false
-	if d.bd == cborBdIndefiniteMap {
-		return containerLenUnknown
-	}
-	if d.bd>>5 != cborMajorMap {
-		d.d.errorf("error reading map; got major type: %x, expected %x/%s", d.bd>>5, cborMajorMap, cbordesc(d.bd))
-	}
-	return d.decLen()
-}
-
-func (d *cborDecDriver) ReadArrayStart() (length int) {
-	if d.advanceNil() {
-		return containerLenNil
-	}
-	if d.st {
-		d.skipTags()
-	}
-	d.bdRead = false
-	if d.bd == cborBdIndefiniteArray {
-		return containerLenUnknown
-	}
-	if d.bd>>5 != cborMajorArray {
-		d.d.errorf("invalid array; got major type: %x, expect: %x/%s", d.bd>>5, cborMajorArray, cbordesc(d.bd))
-	}
-	return d.decLen()
-}
-
-func (d *cborDecDriver) DecodeBytes(bs []byte) (bsOut []byte) {
-	d.d.decByteState = decByteStateNone
-	if d.advanceNil() {
-		return
-	}
-	if d.st {
-		d.skipTags()
-	}
-	if d.bd == cborBdIndefiniteBytes || d.bd == cborBdIndefiniteString {
-		d.bdRead = false
-		if bs == nil {
-			d.d.decByteState = decByteStateReuseBuf
-			return d.decAppendIndefiniteBytes(d.d.b[:0], d.bd>>5)
-		}
-		return d.decAppendIndefiniteBytes(bs[:0], d.bd>>5)
-	}
-	if d.bd == cborBdIndefiniteArray {
-		d.bdRead = false
-		if bs == nil {
-			d.d.decByteState = decByteStateReuseBuf
-			bs = d.d.b[:0]
-		} else {
-			bs = bs[:0]
-		}
-		for !d.CheckBreak() {
-			bs = append(bs, uint8(chkOvf.UintV(d.DecodeUint64(), 8)))
-		}
-		return bs
-	}
-	if d.bd>>5 == cborMajorArray {
-		d.bdRead = false
-		if bs == nil {
-			d.d.decByteState = decByteStateReuseBuf
-			bs = d.d.b[:]
-		}
-		slen := d.decLen()
-		var changed bool
-		if bs, changed = usableByteSlice(bs, slen); changed {
-			d.d.decByteState = decByteStateNone
-		}
-		for i := 0; i < len(bs); i++ {
-			bs[i] = uint8(chkOvf.UintV(d.DecodeUint64(), 8))
-		}
-		for i := len(bs); i < slen; i++ {
-			bs = append(bs, uint8(chkOvf.UintV(d.DecodeUint64(), 8)))
-		}
-		return bs
-	}
-	clen := d.decLen()
-	d.bdRead = false
-	if d.d.zerocopy() {
-		d.d.decByteState = decByteStateZerocopy
-		return d.d.decRd.rb.readx(uint(clen))
-	}
-	if bs == nil {
-		d.d.decByteState = decByteStateReuseBuf
-		bs = d.d.b[:]
-	}
-	return decByteSlice(d.d.r(), clen, d.h.MaxInitLen, bs)
-}
-
-func (d *cborDecDriver) DecodeStringAsBytes() (s []byte) {
-	s = d.DecodeBytes(nil)
-	if d.h.ValidateUnicode && !utf8.Valid(s) {
-		d.d.errorf("DecodeStringAsBytes: invalid UTF-8: %s", s)
-	}
-	return
-}
-
-func (d *cborDecDriver) DecodeTime() (t time.Time) {
-	if d.advanceNil() {
-		return
-	}
-	if d.bd>>5 != cborMajorTag {
-		d.d.errorf("error reading tag; expected major type: %x, got: %x", cborMajorTag, d.bd>>5)
-	}
-	xtag := d.decUint()
-	d.bdRead = false
-	return d.decodeTime(xtag)
-}
-
-func (d *cborDecDriver) decodeTime(xtag uint64) (t time.Time) {
-	switch xtag {
-	case 0:
-		var err error
-		t, err = time.Parse(time.RFC3339, stringView(d.DecodeStringAsBytes()))
-		d.d.onerror(err)
-	case 1:
-		f1, f2 := math.Modf(d.DecodeFloat64())
-		t = time.Unix(int64(f1), int64(f2*1e9))
-	default:
-		d.d.errorf("invalid tag for time.Time - expecting 0 or 1, got 0x%x", xtag)
-	}
-	t = t.UTC().Round(time.Microsecond)
-	return
-}
-
-func (d *cborDecDriver) DecodeExt(rv interface{}, basetype reflect.Type, xtag uint64, ext Ext) {
-	if d.advanceNil() {
-		return
-	}
-	if d.bd>>5 != cborMajorTag {
-		d.d.errorf("error reading tag; expected major type: %x, got: %x", cborMajorTag, d.bd>>5)
-	}
-	realxtag := d.decUint()
-	d.bdRead = false
-	if ext == nil {
-		re := rv.(*RawExt)
-		re.Tag = realxtag
-		d.d.decode(&re.Value)
-	} else if xtag != realxtag {
-		d.d.errorf("Wrong extension tag. Got %b. Expecting: %v", realxtag, xtag)
-	} else if ext == SelfExt {
-		d.d.decodeValue(baseRV(rv), d.h.fnNoExt(basetype))
-	} else {
-		d.d.interfaceExtConvertAndDecode(rv, ext)
-	}
-	d.bdRead = false
-}
-
-func (d *cborDecDriver) DecodeNaked() {
-	if !d.bdRead {
-		d.readNextBd()
-	}
-
-	n := d.d.naked()
-	var decodeFurther bool
-
-	switch d.bd >> 5 {
-	case cborMajorUint:
-		if d.h.SignedInteger {
-			n.v = valueTypeInt
-			n.i = d.DecodeInt64()
-		} else {
-			n.v = valueTypeUint
-			n.u = d.DecodeUint64()
-		}
-	case cborMajorNegInt:
-		n.v = valueTypeInt
-		n.i = d.DecodeInt64()
-	case cborMajorBytes:
-		d.d.fauxUnionReadRawBytes(false)
-	case cborMajorString:
-		n.v = valueTypeString
-		n.s = d.d.stringZC(d.DecodeStringAsBytes())
-	case cborMajorArray:
-		n.v = valueTypeArray
-		decodeFurther = true
-	case cborMajorMap:
-		n.v = valueTypeMap
-		decodeFurther = true
-	case cborMajorTag:
-		n.v = valueTypeExt
-		n.u = d.decUint()
-		n.l = nil
-		if n.u == 0 || n.u == 1 {
-			d.bdRead = false
-			n.v = valueTypeTime
-			n.t = d.decodeTime(n.u)
-		} else if d.st && d.h.getExtForTag(n.u) == nil {
-			// d.skipTags() // no need to call this - tags already skipped
-			d.bdRead = false
-			d.DecodeNaked()
-			return // return when done (as true recursive function)
-		}
-	case cborMajorSimpleOrFloat:
-		switch d.bd {
-		case cborBdNil, cborBdUndefined:
-			n.v = valueTypeNil
-		case cborBdFalse:
-			n.v = valueTypeBool
-			n.b = false
-		case cborBdTrue:
-			n.v = valueTypeBool
-			n.b = true
-		case cborBdFloat16, cborBdFloat32, cborBdFloat64:
-			n.v = valueTypeFloat
-			n.f = d.DecodeFloat64()
-		default:
-			d.d.errorf("decodeNaked: Unrecognized d.bd: 0x%x", d.bd)
-		}
-	default: // should never happen
-		d.d.errorf("decodeNaked: Unrecognized d.bd: 0x%x", d.bd)
-	}
-	if !decodeFurther {
-		d.bdRead = false
-	}
-}
-
-func (d *cborDecDriver) uintBytes() (v []byte, ui uint64) {
-	// this is only used by nextValueBytes, so it's ok to
-	// use readx and bigenstd here.
-	switch vv := d.bd & 0x1f; vv {
-	case 0x18:
-		v = d.d.decRd.readx(1)
-		ui = uint64(v[0])
-	case 0x19:
-		v = d.d.decRd.readx(2)
-		ui = uint64(bigenstd.Uint16(v))
-	case 0x1a:
-		v = d.d.decRd.readx(4)
-		ui = uint64(bigenstd.Uint32(v))
-	case 0x1b:
-		v = d.d.decRd.readx(8)
-		ui = uint64(bigenstd.Uint64(v))
-	default:
-		if vv > 0x1b {
-			d.d.errorf("invalid descriptor decoding uint: %x/%s", d.bd, cbordesc(d.bd))
-		}
-		ui = uint64(vv)
-	}
-	return
-}
-
-func (d *cborDecDriver) nextValueBytes(v0 []byte) (v []byte) {
-	if !d.bdRead {
-		d.readNextBd()
-	}
-	v = v0
-	var h = decNextValueBytesHelper{d: &d.d}
-	var cursor = d.d.rb.c - 1
-	h.append1(&v, d.bd)
-	v = d.nextValueBytesBdReadR(v)
-	d.bdRead = false
-	h.bytesRdV(&v, cursor)
-	return
-}
-
-func (d *cborDecDriver) nextValueBytesR(v0 []byte) (v []byte) {
-	d.readNextBd()
-	v = v0
-	var h = decNextValueBytesHelper{d: &d.d}
-	h.append1(&v, d.bd)
-	return d.nextValueBytesBdReadR(v)
-}
-
-func (d *cborDecDriver) nextValueBytesBdReadR(v0 []byte) (v []byte) {
-	v = v0
-	var h = decNextValueBytesHelper{d: &d.d}
-
-	var bs []byte
-	var ui uint64
-
-	switch d.bd >> 5 {
-	case cborMajorUint, cborMajorNegInt:
-		bs, _ = d.uintBytes()
-		h.appendN(&v, bs...)
-	case cborMajorString, cborMajorBytes:
-		if d.bd == cborBdIndefiniteBytes || d.bd == cborBdIndefiniteString {
-			for {
-				d.readNextBd()
-				h.append1(&v, d.bd)
-				if d.bd == cborBdBreak {
-					break
-				}
-				bs, ui = d.uintBytes()
-				h.appendN(&v, bs...)
-				h.appendN(&v, d.d.decRd.readx(uint(ui))...)
-			}
-		} else {
-			bs, ui = d.uintBytes()
-			h.appendN(&v, bs...)
-			h.appendN(&v, d.d.decRd.readx(uint(ui))...)
-		}
-	case cborMajorArray:
-		if d.bd == cborBdIndefiniteArray {
-			for {
-				d.readNextBd()
-				h.append1(&v, d.bd)
-				if d.bd == cborBdBreak {
-					break
-				}
-				v = d.nextValueBytesBdReadR(v)
-			}
-		} else {
-			bs, ui = d.uintBytes()
-			h.appendN(&v, bs...)
-			for i := uint64(0); i < ui; i++ {
-				v = d.nextValueBytesR(v)
-			}
-		}
-	case cborMajorMap:
-		if d.bd == cborBdIndefiniteMap {
-			for {
-				d.readNextBd()
-				h.append1(&v, d.bd)
-				if d.bd == cborBdBreak {
-					break
-				}
-				v = d.nextValueBytesBdReadR(v)
-				v = d.nextValueBytesR(v)
-			}
-		} else {
-			bs, ui = d.uintBytes()
-			h.appendN(&v, bs...)
-			for i := uint64(0); i < ui; i++ {
-				v = d.nextValueBytesR(v)
-				v = d.nextValueBytesR(v)
-			}
-		}
-	case cborMajorTag:
-		bs, _ = d.uintBytes()
-		h.appendN(&v, bs...)
-		v = d.nextValueBytesR(v)
-	case cborMajorSimpleOrFloat:
-		switch d.bd {
-		case cborBdNil, cborBdUndefined, cborBdFalse, cborBdTrue: // pass
-		case cborBdFloat16:
-			h.appendN(&v, d.d.decRd.readx(2)...)
-		case cborBdFloat32:
-			h.appendN(&v, d.d.decRd.readx(4)...)
-		case cborBdFloat64:
-			h.appendN(&v, d.d.decRd.readx(8)...)
-		default:
-			d.d.errorf("nextValueBytes: Unrecognized d.bd: 0x%x", d.bd)
-		}
-	default: // should never happen
-		d.d.errorf("nextValueBytes: Unrecognized d.bd: 0x%x", d.bd)
-	}
-	return
-}
-
-// -------------------------
-
-// CborHandle is a Handle for the CBOR encoding format,
-// defined at http://tools.ietf.org/html/rfc7049 and documented further at http://cbor.io .
-//
-// CBOR is comprehensively supported, including support for:
-//   - indefinite-length arrays/maps/bytes/strings
-//   - (extension) tags in range 0..0xffff (0 .. 65535)
-//   - half, single and double-precision floats
-//   - all numbers (1, 2, 4 and 8-byte signed and unsigned integers)
-//   - nil, true, false, ...
-//   - arrays and maps, bytes and text strings
-//
-// None of the optional extensions (with tags) defined in the spec are supported out-of-the-box.
-// Users can implement them as needed (using SetExt), including spec-documented ones:
-//   - timestamp, BigNum, BigFloat, Decimals,
-//   - Encoded Text (e.g. URL, regexp, base64, MIME Message), etc.
-type CborHandle struct {
-	binaryEncodingType
-	// noElemSeparators
-	BasicHandle
-
-	// IndefiniteLength=true, means that we encode using indefinitelength
-	IndefiniteLength bool
-
-	// TimeRFC3339 says to encode time.Time using RFC3339 format.
-	// If unset, we encode time.Time using seconds past epoch.
-	TimeRFC3339 bool
-
-	// SkipUnexpectedTags says to skip over any tags for which extensions are
-	// not defined. This is in keeping with the cbor spec on "Optional Tagging of Items".
-	//
-	// Furthermore, this allows the skipping over of the Self Describing Tag 0xd9d9f7.
-	SkipUnexpectedTags bool
-}
-
-// Name returns the name of the handle: cbor
-func (h *CborHandle) Name() string { return "cbor" }
-
-func (h *CborHandle) desc(bd byte) string { return cbordesc(bd) }
-
-func (h *CborHandle) newEncDriver() encDriver {
-	var e = &cborEncDriver{h: h}
-	e.e.e = e
-	e.e.init(h)
-	e.reset()
-	return e
-}
-
-func (h *CborHandle) newDecDriver() decDriver {
-	d := &cborDecDriver{h: h, st: h.SkipUnexpectedTags}
-	d.d.d = d
-	d.d.cbor = true
-	d.d.init(h)
-	d.reset()
-	return d
-}
-
-func (d *cborDecDriver) reset() {
-	d.bdAndBdread.reset()
-	d.st = d.h.SkipUnexpectedTags
-}
-
-var _ decDriver = (*cborDecDriver)(nil)
-var _ encDriver = (*cborEncDriver)(nil)