diff options
Diffstat (limited to 'src/kube2msb/vendor/github.com/ugorji/go/codec/binc.go')
| -rw-r--r-- | src/kube2msb/vendor/github.com/ugorji/go/codec/binc.go | 922 |
1 files changed, 922 insertions, 0 deletions
diff --git a/src/kube2msb/vendor/github.com/ugorji/go/codec/binc.go b/src/kube2msb/vendor/github.com/ugorji/go/codec/binc.go new file mode 100644 index 0000000..766d26c --- /dev/null +++ b/src/kube2msb/vendor/github.com/ugorji/go/codec/binc.go @@ -0,0 +1,922 @@ +// Copyright (c) 2012-2015 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" +) + +const bincDoPrune = true // No longer needed. Needed before as C lib did not support pruning. + +// vd as low 4 bits (there are 16 slots) +const ( + bincVdSpecial byte = iota + bincVdPosInt + bincVdNegInt + bincVdFloat + + bincVdString + bincVdByteArray + bincVdArray + bincVdMap + + bincVdTimestamp + bincVdSmallInt + bincVdUnicodeOther + bincVdSymbol + + bincVdDecimal + _ // open slot + _ // open slot + bincVdCustomExt = 0x0f +) + +const ( + bincSpNil byte = iota + bincSpFalse + bincSpTrue + bincSpNan + bincSpPosInf + bincSpNegInf + bincSpZeroFloat + bincSpZero + bincSpNegOne +) + +const ( + bincFlBin16 byte = iota + bincFlBin32 + _ // bincFlBin32e + bincFlBin64 + _ // bincFlBin64e + // others not currently supported +) + +type bincEncDriver struct { + e *Encoder + w encWriter + m map[string]uint16 // symbols + b [scratchByteArrayLen]byte + s uint16 // symbols sequencer + encNoSeparator +} + +func (e *bincEncDriver) IsBuiltinType(rt uintptr) bool { + return rt == timeTypId +} + +func (e *bincEncDriver) EncodeBuiltin(rt uintptr, v interface{}) { + if rt == timeTypId { + var bs []byte + switch x := v.(type) { + case time.Time: + bs = encodeTime(x) + case *time.Time: + bs = encodeTime(*x) + default: + e.e.errorf("binc error encoding builtin: expect time.Time, received %T", v) + } + e.w.writen1(bincVdTimestamp<<4 | uint8(len(bs))) + e.w.writeb(bs) + } +} + +func (e *bincEncDriver) EncodeNil() { + e.w.writen1(bincVdSpecial<<4 | bincSpNil) +} + +func (e *bincEncDriver) EncodeBool(b bool) { + if b { + e.w.writen1(bincVdSpecial<<4 | bincSpTrue) + } else { + e.w.writen1(bincVdSpecial<<4 | bincSpFalse) + } +} + +func (e *bincEncDriver) EncodeFloat32(f float32) { + if f == 0 { + e.w.writen1(bincVdSpecial<<4 | bincSpZeroFloat) + return + } + e.w.writen1(bincVdFloat<<4 | bincFlBin32) + bigenHelper{e.b[:4], e.w}.writeUint32(math.Float32bits(f)) +} + +func (e *bincEncDriver) EncodeFloat64(f float64) { + if f == 0 { + e.w.writen1(bincVdSpecial<<4 | bincSpZeroFloat) + return + } + bigen.PutUint64(e.b[:8], math.Float64bits(f)) + if bincDoPrune { + i := 7 + for ; i >= 0 && (e.b[i] == 0); i-- { + } + i++ + if i <= 6 { + e.w.writen1(bincVdFloat<<4 | 0x8 | bincFlBin64) + e.w.writen1(byte(i)) + e.w.writeb(e.b[:i]) + return + } + } + e.w.writen1(bincVdFloat<<4 | bincFlBin64) + e.w.writeb(e.b[:8]) +} + +func (e *bincEncDriver) encIntegerPrune(bd byte, pos bool, v uint64, lim uint8) { + if lim == 4 { + bigen.PutUint32(e.b[:lim], uint32(v)) + } else { + bigen.PutUint64(e.b[:lim], v) + } + if bincDoPrune { + i := pruneSignExt(e.b[:lim], pos) + e.w.writen1(bd | lim - 1 - byte(i)) + e.w.writeb(e.b[i:lim]) + } else { + e.w.writen1(bd | lim - 1) + e.w.writeb(e.b[:lim]) + } +} + +func (e *bincEncDriver) EncodeInt(v int64) { + const nbd byte = bincVdNegInt << 4 + if v >= 0 { + e.encUint(bincVdPosInt<<4, true, uint64(v)) + } else if v == -1 { + e.w.writen1(bincVdSpecial<<4 | bincSpNegOne) + } else { + e.encUint(bincVdNegInt<<4, false, uint64(-v)) + } +} + +func (e *bincEncDriver) EncodeUint(v uint64) { + e.encUint(bincVdPosInt<<4, true, v) +} + +func (e *bincEncDriver) encUint(bd byte, pos bool, v uint64) { + if v == 0 { + e.w.writen1(bincVdSpecial<<4 | bincSpZero) + } else if pos && v >= 1 && v <= 16 { + e.w.writen1(bincVdSmallInt<<4 | byte(v-1)) + } else if v <= math.MaxUint8 { + e.w.writen2(bd|0x0, byte(v)) + } else if v <= math.MaxUint16 { + e.w.writen1(bd | 0x01) + bigenHelper{e.b[:2], e.w}.writeUint16(uint16(v)) + } else if v <= math.MaxUint32 { + e.encIntegerPrune(bd, pos, v, 4) + } else { + e.encIntegerPrune(bd, pos, v, 8) + } +} + +func (e *bincEncDriver) EncodeExt(rv interface{}, xtag uint64, ext Ext, _ *Encoder) { + bs := ext.WriteExt(rv) + if bs == nil { + e.EncodeNil() + return + } + e.encodeExtPreamble(uint8(xtag), len(bs)) + e.w.writeb(bs) +} + +func (e *bincEncDriver) EncodeRawExt(re *RawExt, _ *Encoder) { + e.encodeExtPreamble(uint8(re.Tag), len(re.Data)) + e.w.writeb(re.Data) +} + +func (e *bincEncDriver) encodeExtPreamble(xtag byte, length int) { + e.encLen(bincVdCustomExt<<4, uint64(length)) + e.w.writen1(xtag) +} + +func (e *bincEncDriver) EncodeArrayStart(length int) { + e.encLen(bincVdArray<<4, uint64(length)) +} + +func (e *bincEncDriver) EncodeMapStart(length int) { + e.encLen(bincVdMap<<4, uint64(length)) +} + +func (e *bincEncDriver) EncodeString(c charEncoding, v string) { + l := uint64(len(v)) + e.encBytesLen(c, l) + if l > 0 { + e.w.writestr(v) + } +} + +func (e *bincEncDriver) EncodeSymbol(v string) { + // if WriteSymbolsNoRefs { + // e.encodeString(c_UTF8, v) + // return + // } + + //symbols only offer benefit when string length > 1. + //This is because strings with length 1 take only 2 bytes to store + //(bd with embedded length, and single byte for string val). + + l := len(v) + if l == 0 { + e.encBytesLen(c_UTF8, 0) + return + } else if l == 1 { + e.encBytesLen(c_UTF8, 1) + e.w.writen1(v[0]) + return + } + if e.m == nil { + e.m = make(map[string]uint16, 16) + } + ui, ok := e.m[v] + if ok { + if ui <= math.MaxUint8 { + e.w.writen2(bincVdSymbol<<4, byte(ui)) + } else { + e.w.writen1(bincVdSymbol<<4 | 0x8) + bigenHelper{e.b[:2], e.w}.writeUint16(ui) + } + } else { + e.s++ + ui = e.s + //ui = uint16(atomic.AddUint32(&e.s, 1)) + e.m[v] = ui + var lenprec uint8 + if l <= math.MaxUint8 { + // lenprec = 0 + } else if l <= math.MaxUint16 { + lenprec = 1 + } else if int64(l) <= math.MaxUint32 { + lenprec = 2 + } else { + lenprec = 3 + } + if ui <= math.MaxUint8 { + e.w.writen2(bincVdSymbol<<4|0x0|0x4|lenprec, byte(ui)) + } else { + e.w.writen1(bincVdSymbol<<4 | 0x8 | 0x4 | lenprec) + bigenHelper{e.b[:2], e.w}.writeUint16(ui) + } + if lenprec == 0 { + e.w.writen1(byte(l)) + } else if lenprec == 1 { + bigenHelper{e.b[:2], e.w}.writeUint16(uint16(l)) + } else if lenprec == 2 { + bigenHelper{e.b[:4], e.w}.writeUint32(uint32(l)) + } else { + bigenHelper{e.b[:8], e.w}.writeUint64(uint64(l)) + } + e.w.writestr(v) + } +} + +func (e *bincEncDriver) EncodeStringBytes(c charEncoding, v []byte) { + l := uint64(len(v)) + e.encBytesLen(c, l) + if l > 0 { + e.w.writeb(v) + } +} + +func (e *bincEncDriver) encBytesLen(c charEncoding, length uint64) { + //TODO: support bincUnicodeOther (for now, just use string or bytearray) + if c == c_RAW { + e.encLen(bincVdByteArray<<4, length) + } else { + e.encLen(bincVdString<<4, length) + } +} + +func (e *bincEncDriver) encLen(bd byte, l uint64) { + if l < 12 { + e.w.writen1(bd | uint8(l+4)) + } else { + e.encLenNumber(bd, l) + } +} + +func (e *bincEncDriver) encLenNumber(bd byte, v uint64) { + if v <= math.MaxUint8 { + e.w.writen2(bd, byte(v)) + } else if v <= math.MaxUint16 { + e.w.writen1(bd | 0x01) + bigenHelper{e.b[:2], e.w}.writeUint16(uint16(v)) + } else if v <= math.MaxUint32 { + e.w.writen1(bd | 0x02) + bigenHelper{e.b[:4], e.w}.writeUint32(uint32(v)) + } else { + e.w.writen1(bd | 0x03) + bigenHelper{e.b[:8], e.w}.writeUint64(uint64(v)) + } +} + +//------------------------------------ + +type bincDecSymbol struct { + s string + b []byte + i uint16 +} + +type bincDecDriver struct { + d *Decoder + h *BincHandle + r decReader + br bool // bytes reader + bdRead bool + bd byte + vd byte + vs byte + noStreamingCodec + decNoSeparator + b [scratchByteArrayLen]byte + + // linear searching on this slice is ok, + // because we typically expect < 32 symbols in each stream. + s []bincDecSymbol +} + +func (d *bincDecDriver) readNextBd() { + d.bd = d.r.readn1() + d.vd = d.bd >> 4 + d.vs = d.bd & 0x0f + d.bdRead = true +} + +func (d *bincDecDriver) ContainerType() (vt valueType) { + if d.vd == bincVdSpecial && d.vs == bincSpNil { + return valueTypeNil + } else if d.vd == bincVdByteArray { + return valueTypeBytes + } else if d.vd == bincVdString { + return valueTypeString + } else if d.vd == bincVdArray { + return valueTypeArray + } else if d.vd == bincVdMap { + return valueTypeMap + } else { + // d.d.errorf("isContainerType: unsupported parameter: %v", vt) + } + return valueTypeUnset +} + +func (d *bincDecDriver) TryDecodeAsNil() bool { + if !d.bdRead { + d.readNextBd() + } + if d.bd == bincVdSpecial<<4|bincSpNil { + d.bdRead = false + return true + } + return false +} + +func (d *bincDecDriver) IsBuiltinType(rt uintptr) bool { + return rt == timeTypId +} + +func (d *bincDecDriver) DecodeBuiltin(rt uintptr, v interface{}) { + if !d.bdRead { + d.readNextBd() + } + if rt == timeTypId { + if d.vd != bincVdTimestamp { + d.d.errorf("Invalid d.vd. Expecting 0x%x. Received: 0x%x", bincVdTimestamp, d.vd) + return + } + tt, err := decodeTime(d.r.readx(int(d.vs))) + if err != nil { + panic(err) + } + var vt *time.Time = v.(*time.Time) + *vt = tt + d.bdRead = false + } +} + +func (d *bincDecDriver) decFloatPre(vs, defaultLen byte) { + if vs&0x8 == 0 { + d.r.readb(d.b[0:defaultLen]) + } else { + l := d.r.readn1() + if l > 8 { + d.d.errorf("At most 8 bytes used to represent float. Received: %v bytes", l) + return + } + for i := l; i < 8; i++ { + d.b[i] = 0 + } + d.r.readb(d.b[0:l]) + } +} + +func (d *bincDecDriver) decFloat() (f float64) { + //if true { f = math.Float64frombits(bigen.Uint64(d.r.readx(8))); break; } + if x := d.vs & 0x7; x == bincFlBin32 { + d.decFloatPre(d.vs, 4) + f = float64(math.Float32frombits(bigen.Uint32(d.b[0:4]))) + } else if x == bincFlBin64 { + d.decFloatPre(d.vs, 8) + f = math.Float64frombits(bigen.Uint64(d.b[0:8])) + } else { + d.d.errorf("only float32 and float64 are supported. d.vd: 0x%x, d.vs: 0x%x", d.vd, d.vs) + return + } + return +} + +func (d *bincDecDriver) decUint() (v uint64) { + // need to inline the code (interface conversion and type assertion expensive) + switch d.vs { + case 0: + v = uint64(d.r.readn1()) + case 1: + d.r.readb(d.b[6:8]) + v = uint64(bigen.Uint16(d.b[6:8])) + case 2: + d.b[4] = 0 + d.r.readb(d.b[5:8]) + v = uint64(bigen.Uint32(d.b[4:8])) + case 3: + d.r.readb(d.b[4:8]) + v = uint64(bigen.Uint32(d.b[4:8])) + case 4, 5, 6: + lim := int(7 - d.vs) + d.r.readb(d.b[lim:8]) + for i := 0; i < lim; i++ { + d.b[i] = 0 + } + v = uint64(bigen.Uint64(d.b[:8])) + case 7: + d.r.readb(d.b[:8]) + v = uint64(bigen.Uint64(d.b[:8])) + default: + d.d.errorf("unsigned integers with greater than 64 bits of precision not supported") + return + } + return +} + +func (d *bincDecDriver) decCheckInteger() (ui uint64, neg bool) { + if !d.bdRead { + d.readNextBd() + } + vd, vs := d.vd, d.vs + if vd == bincVdPosInt { + ui = d.decUint() + } else if vd == bincVdNegInt { + ui = d.decUint() + neg = true + } else if vd == bincVdSmallInt { + ui = uint64(d.vs) + 1 + } else if vd == bincVdSpecial { + if vs == bincSpZero { + //i = 0 + } else if vs == bincSpNegOne { + neg = true + ui = 1 + } else { + d.d.errorf("numeric decode fails for special value: d.vs: 0x%x", d.vs) + return + } + } else { + d.d.errorf("number can only be decoded from uint or int values. d.bd: 0x%x, d.vd: 0x%x", d.bd, d.vd) + return + } + return +} + +func (d *bincDecDriver) DecodeInt(bitsize uint8) (i int64) { + ui, neg := d.decCheckInteger() + i, overflow := chkOvf.SignedInt(ui) + if overflow { + d.d.errorf("simple: overflow converting %v to signed integer", ui) + return + } + if neg { + i = -i + } + if chkOvf.Int(i, bitsize) { + d.d.errorf("binc: overflow integer: %v", i) + return + } + d.bdRead = false + return +} + +func (d *bincDecDriver) DecodeUint(bitsize uint8) (ui uint64) { + ui, neg := d.decCheckInteger() + if neg { + d.d.errorf("Assigning negative signed value to unsigned type") + return + } + if chkOvf.Uint(ui, bitsize) { + d.d.errorf("binc: overflow integer: %v", ui) + return + } + d.bdRead = false + return +} + +func (d *bincDecDriver) DecodeFloat(chkOverflow32 bool) (f float64) { + if !d.bdRead { + d.readNextBd() + } + vd, vs := d.vd, d.vs + if vd == bincVdSpecial { + d.bdRead = false + if vs == bincSpNan { + return math.NaN() + } else if vs == bincSpPosInf { + return math.Inf(1) + } else if vs == bincSpZeroFloat || vs == bincSpZero { + return + } else if vs == bincSpNegInf { + return math.Inf(-1) + } else { + d.d.errorf("Invalid d.vs decoding float where d.vd=bincVdSpecial: %v", d.vs) + return + } + } else if vd == bincVdFloat { + f = d.decFloat() + } else { + f = float64(d.DecodeInt(64)) + } + if chkOverflow32 && chkOvf.Float32(f) { + d.d.errorf("binc: float32 overflow: %v", f) + return + } + d.bdRead = false + return +} + +// bool can be decoded from bool only (single byte). +func (d *bincDecDriver) DecodeBool() (b bool) { + if !d.bdRead { + d.readNextBd() + } + if bd := d.bd; bd == (bincVdSpecial | bincSpFalse) { + // b = false + } else if bd == (bincVdSpecial | bincSpTrue) { + b = true + } else { + d.d.errorf("Invalid single-byte value for bool: %s: %x", msgBadDesc, d.bd) + return + } + d.bdRead = false + return +} + +func (d *bincDecDriver) ReadMapStart() (length int) { + if d.vd != bincVdMap { + d.d.errorf("Invalid d.vd for map. Expecting 0x%x. Got: 0x%x", bincVdMap, d.vd) + return + } + length = d.decLen() + d.bdRead = false + return +} + +func (d *bincDecDriver) ReadArrayStart() (length int) { + if d.vd != bincVdArray { + d.d.errorf("Invalid d.vd for array. Expecting 0x%x. Got: 0x%x", bincVdArray, d.vd) + return + } + length = d.decLen() + d.bdRead = false + return +} + +func (d *bincDecDriver) decLen() int { + if d.vs > 3 { + return int(d.vs - 4) + } + return int(d.decLenNumber()) +} + +func (d *bincDecDriver) decLenNumber() (v uint64) { + if x := d.vs; x == 0 { + v = uint64(d.r.readn1()) + } else if x == 1 { + d.r.readb(d.b[6:8]) + v = uint64(bigen.Uint16(d.b[6:8])) + } else if x == 2 { + d.r.readb(d.b[4:8]) + v = uint64(bigen.Uint32(d.b[4:8])) + } else { + d.r.readb(d.b[:8]) + v = bigen.Uint64(d.b[:8]) + } + return +} + +func (d *bincDecDriver) decStringAndBytes(bs []byte, withString, zerocopy bool) (bs2 []byte, s string) { + if !d.bdRead { + d.readNextBd() + } + if d.bd == bincVdSpecial<<4|bincSpNil { + d.bdRead = false + return + } + var slen int = -1 + // var ok bool + switch d.vd { + case bincVdString, bincVdByteArray: + slen = d.decLen() + if zerocopy { + if d.br { + bs2 = d.r.readx(slen) + } else if len(bs) == 0 { + bs2 = decByteSlice(d.r, slen, d.b[:]) + } else { + bs2 = decByteSlice(d.r, slen, bs) + } + } else { + bs2 = decByteSlice(d.r, slen, bs) + } + if withString { + s = string(bs2) + } + case bincVdSymbol: + // zerocopy doesn't apply for symbols, + // as the values must be stored in a table for later use. + // + //from vs: extract numSymbolBytes, containsStringVal, strLenPrecision, + //extract symbol + //if containsStringVal, read it and put in map + //else look in map for string value + var symbol uint16 + vs := d.vs + if vs&0x8 == 0 { + symbol = uint16(d.r.readn1()) + } else { + symbol = uint16(bigen.Uint16(d.r.readx(2))) + } + if d.s == nil { + d.s = make([]bincDecSymbol, 0, 16) + } + + if vs&0x4 == 0 { + for i := range d.s { + j := &d.s[i] + if j.i == symbol { + bs2 = j.b + if withString { + if j.s == "" && bs2 != nil { + j.s = string(bs2) + } + s = j.s + } + break + } + } + } else { + switch vs & 0x3 { + case 0: + slen = int(d.r.readn1()) + case 1: + slen = int(bigen.Uint16(d.r.readx(2))) + case 2: + slen = int(bigen.Uint32(d.r.readx(4))) + case 3: + slen = int(bigen.Uint64(d.r.readx(8))) + } + // since using symbols, do not store any part of + // the parameter bs in the map, as it might be a shared buffer. + // bs2 = decByteSlice(d.r, slen, bs) + bs2 = decByteSlice(d.r, slen, nil) + if withString { + s = string(bs2) + } + d.s = append(d.s, bincDecSymbol{i: symbol, s: s, b: bs2}) + } + default: + d.d.errorf("Invalid d.vd. Expecting string:0x%x, bytearray:0x%x or symbol: 0x%x. Got: 0x%x", + bincVdString, bincVdByteArray, bincVdSymbol, d.vd) + return + } + d.bdRead = false + return +} + +func (d *bincDecDriver) DecodeString() (s string) { + // DecodeBytes does not accomodate symbols, whose impl stores string version in map. + // Use decStringAndBytes directly. + // return string(d.DecodeBytes(d.b[:], true, true)) + _, s = d.decStringAndBytes(d.b[:], true, true) + return +} + +func (d *bincDecDriver) DecodeBytes(bs []byte, isstring, zerocopy bool) (bsOut []byte) { + if isstring { + bsOut, _ = d.decStringAndBytes(bs, false, zerocopy) + return + } + if !d.bdRead { + d.readNextBd() + } + if d.bd == bincVdSpecial<<4|bincSpNil { + d.bdRead = false + return nil + } + var clen int + if d.vd == bincVdString || d.vd == bincVdByteArray { + clen = d.decLen() + } else { + d.d.errorf("Invalid d.vd for bytes. Expecting string:0x%x or bytearray:0x%x. Got: 0x%x", + bincVdString, bincVdByteArray, d.vd) + return + } + d.bdRead = false + if zerocopy { + if d.br { + return d.r.readx(clen) + } else if len(bs) == 0 { + bs = d.b[:] + } + } + return decByteSlice(d.r, clen, bs) +} + +func (d *bincDecDriver) DecodeExt(rv interface{}, xtag uint64, ext Ext) (realxtag uint64) { + if xtag > 0xff { + d.d.errorf("decodeExt: tag must be <= 0xff; got: %v", xtag) + return + } + realxtag1, xbs := d.decodeExtV(ext != nil, uint8(xtag)) + realxtag = uint64(realxtag1) + if ext == nil { + re := rv.(*RawExt) + re.Tag = realxtag + re.Data = detachZeroCopyBytes(d.br, re.Data, xbs) + } else { + ext.ReadExt(rv, xbs) + } + return +} + +func (d *bincDecDriver) decodeExtV(verifyTag bool, tag byte) (xtag byte, xbs []byte) { + if !d.bdRead { + d.readNextBd() + } + if d.vd == bincVdCustomExt { + l := d.decLen() + xtag = d.r.readn1() + if verifyTag && xtag != tag { + d.d.errorf("Wrong extension tag. Got %b. Expecting: %v", xtag, tag) + return + } + xbs = d.r.readx(l) + } else if d.vd == bincVdByteArray { + xbs = d.DecodeBytes(nil, false, true) + } else { + d.d.errorf("Invalid d.vd for extensions (Expecting extensions or byte array). Got: 0x%x", d.vd) + return + } + d.bdRead = false + return +} + +func (d *bincDecDriver) DecodeNaked() { + if !d.bdRead { + d.readNextBd() + } + + n := &d.d.n + var decodeFurther bool + + switch d.vd { + case bincVdSpecial: + switch d.vs { + case bincSpNil: + n.v = valueTypeNil + case bincSpFalse: + n.v = valueTypeBool + n.b = false + case bincSpTrue: + n.v = valueTypeBool + n.b = true + case bincSpNan: + n.v = valueTypeFloat + n.f = math.NaN() + case bincSpPosInf: + n.v = valueTypeFloat + n.f = math.Inf(1) + case bincSpNegInf: + n.v = valueTypeFloat + n.f = math.Inf(-1) + case bincSpZeroFloat: + n.v = valueTypeFloat + n.f = float64(0) + case bincSpZero: + n.v = valueTypeUint + n.u = uint64(0) // int8(0) + case bincSpNegOne: + n.v = valueTypeInt + n.i = int64(-1) // int8(-1) + default: + d.d.errorf("decodeNaked: Unrecognized special value 0x%x", d.vs) + } + case bincVdSmallInt: + n.v = valueTypeUint + n.u = uint64(int8(d.vs)) + 1 // int8(d.vs) + 1 + case bincVdPosInt: + n.v = valueTypeUint + n.u = d.decUint() + case bincVdNegInt: + n.v = valueTypeInt + n.i = -(int64(d.decUint())) + case bincVdFloat: + n.v = valueTypeFloat + n.f = d.decFloat() + case bincVdSymbol: + n.v = valueTypeSymbol + n.s = d.DecodeString() + case bincVdString: + n.v = valueTypeString + n.s = d.DecodeString() + case bincVdByteArray: + n.v = valueTypeBytes + n.l = d.DecodeBytes(nil, false, false) + case bincVdTimestamp: + n.v = valueTypeTimestamp + tt, err := decodeTime(d.r.readx(int(d.vs))) + if err != nil { + panic(err) + } + n.t = tt + case bincVdCustomExt: + n.v = valueTypeExt + l := d.decLen() + n.u = uint64(d.r.readn1()) + n.l = d.r.readx(l) + case bincVdArray: + n.v = valueTypeArray + decodeFurther = true + case bincVdMap: + n.v = valueTypeMap + decodeFurther = true + default: + d.d.errorf("decodeNaked: Unrecognized d.vd: 0x%x", d.vd) + } + + if !decodeFurther { + d.bdRead = false + } + if n.v == valueTypeUint && d.h.SignedInteger { + n.v = valueTypeInt + n.i = int64(n.u) + } + return +} + +//------------------------------------ + +//BincHandle is a Handle for the Binc Schema-Free Encoding Format +//defined at https://github.com/ugorji/binc . +// +//BincHandle currently supports all Binc features with the following EXCEPTIONS: +// - only integers up to 64 bits of precision are supported. +// big integers are unsupported. +// - Only IEEE 754 binary32 and binary64 floats are supported (ie Go float32 and float64 types). +// extended precision and decimal IEEE 754 floats are unsupported. +// - Only UTF-8 strings supported. +// Unicode_Other Binc types (UTF16, UTF32) are currently unsupported. +// +//Note that these EXCEPTIONS are temporary and full support is possible and may happen soon. +type BincHandle struct { + BasicHandle + binaryEncodingType +} + +func (h *BincHandle) SetBytesExt(rt reflect.Type, tag uint64, ext BytesExt) (err error) { + return h.SetExt(rt, tag, &setExtWrapper{b: ext}) +} + +func (h *BincHandle) newEncDriver(e *Encoder) encDriver { + return &bincEncDriver{e: e, w: e.w} +} + +func (h *BincHandle) newDecDriver(d *Decoder) decDriver { + return &bincDecDriver{d: d, r: d.r, h: h, br: d.bytes} +} + +func (e *bincEncDriver) reset() { + e.w = e.e.w + e.s = 0 + e.m = nil +} + +func (d *bincDecDriver) reset() { + d.r = d.d.r + d.s = nil + d.bd, d.bdRead, d.vd, d.vs = 0, false, 0, 0 +} + +var _ decDriver = (*bincDecDriver)(nil) +var _ encDriver = (*bincEncDriver)(nil) |