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v3.go
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package tt
import (
"encoding/binary"
"encoding/gob"
"errors"
"io"
"math"
"reflect"
"strconv"
"sync"
v3 "github.com/jaicewizard/tt/v3"
)
var (
decodersSlice = [...]func(v3.KeyValue, reflect.Value, bool) error{
decodeUndefined,
decodeStringkey,
decodeBytes,
decodeInt8,
decodeInt16,
decodeInt32,
decodeInt64,
decodeUint8,
decodeUint16,
decodeUint32,
decodeUint64,
decodeBool,
decodeFloat32,
decodeFloat64,
decodeUndefined,
decodeUndefined,
decodeUndefined,
decodeUndefined,
}
collectionDecodersSlice [2]func(*V3Decoder, v3.Value, reflect.Value) error
)
func init() {
collectionDecodersSlice = [2]func(*V3Decoder, v3.Value, reflect.Value) error{
decodeMap,
decodeArr,
}
}
type fieldsstruct struct {
canGob bool
usable uint
fields []string
}
//V3Encoder is the encoder used to encode a ttv3 data stream
type V3Encoder struct {
out io.Writer
varintbuf *[2*binary.MaxVarintLen64 + 1]byte
typeCache map[reflect.Type]fieldsstruct
isStream bool
fsKeyBuf [8]byte //Fixed Size buffer for keys
fsValueBuf [8]byte //Fixed Size buffer for values
sync.Mutex
}
var v3StreamHeader = []byte{version3, 1 << 7}
var v3NoStreamHeader = []byte{version3, 0}
//NewV3Encoder creates a new encoder to encode a ttv3 data stream
func NewV3Encoder(out io.Writer, isStream bool) *V3Encoder {
if isStream {
out.Write(v3StreamHeader)
}
return &V3Encoder{
isStream: isStream,
out: out,
varintbuf: &[2*binary.MaxVarintLen64 + 1]byte{},
typeCache: map[reflect.Type]fieldsstruct{},
}
}
//Encodev3 encodes an `interface{}`` into a bytebuffer using ttv3
func Encodev3(d interface{}, out io.Writer) error {
out.Write(v3NoStreamHeader)
enc := &V3Encoder{
out: out,
varintbuf: &[2*binary.MaxVarintLen64 + 1]byte{},
typeCache: map[reflect.Type]fieldsstruct{},
}
//We dont have to lock/unlock since we know we are the only one witha acces
return enc.encodeValuev3(d, v3.KeyValue{})
}
//Encode encodes an `interface{}` into a bytebuffer using ttv3
func (enc *V3Encoder) Encode(d interface{}) error {
enc.Lock()
if !enc.isStream {
enc.out.Write(v3NoStreamHeader)
}
ret := enc.encodeValuev3(d, v3.KeyValue{})
enc.Unlock()
return ret
}
func encodeKeyv3(k interface{}, fsKeyBuf *[8]byte) v3.KeyValue {
var key v3.KeyValue
if k != nil {
switch v := k.(type) { //making this a seperate function will decrese performance, it won't be able to inline and make more allocations
case string:
key.Value = v3.StringToBytes(v)
key.Vtype = v3.StringT
case []byte:
key.Value = v
key.Vtype = v3.BytesT
case int8:
key.Value = fsKeyBuf[:1]
fsKeyBuf[0] = v3.Int8ToBytes(v)
key.Vtype = v3.Int8T
case int16:
key.Value = fsKeyBuf[:2]
v3.Int16ToBytes(v, key.Value)
key.Vtype = v3.Int16T
case int32:
key.Value = fsKeyBuf[:4]
v3.Int32ToBytes(v, key.Value)
key.Vtype = v3.Int32T
case int64:
key.Value = fsKeyBuf[:8]
v3.Int64ToBytes(v, key.Value)
key.Vtype = v3.Int64T
case int:
key.Value = fsKeyBuf[:8]
v3.Int64ToBytes(int64(v), key.Value)
key.Vtype = v3.Int64T
case uint8:
key.Value = fsKeyBuf[:1]
fsKeyBuf[0] = v3.Uint8ToBytes(v)
key.Vtype = v3.Uint8T
case uint16:
key.Value = fsKeyBuf[:2]
v3.Uint16ToBytes(v, key.Value)
key.Vtype = v3.Uint16T
case uint32:
key.Value = fsKeyBuf[:4]
v3.Uint32ToBytes(v, key.Value)
key.Vtype = v3.Uint32T
case uint64:
key.Value = fsKeyBuf[:8]
v3.Uint64ToBytes(v, key.Value)
key.Vtype = v3.Uint64T
case uint:
key.Value = fsKeyBuf[:8]
v3.Uint64ToBytes(uint64(v), key.Value)
key.Vtype = v3.Uint64T
case float32:
key.Value = fsKeyBuf[:4]
v3.Float32ToBytes(v, key.Value)
key.Vtype = v3.Float32T
case float64:
key.Value = fsKeyBuf[:8]
v3.Float64ToBytes(v, key.Value)
key.Vtype = v3.Float64T
case bool:
key.Value = fsKeyBuf[:1]
fsKeyBuf[0] = v3.BoolToBytes(v)
key.Vtype = v3.BoolT
}
}
return key
}
func encodeKeyv3_reflect(d reflect.Value, fsKeyBuf *[8]byte) v3.KeyValue {
var key v3.KeyValue
switch d.Type().Kind() {
case reflect.Interface, reflect.Ptr:
encodeKeyv3_reflect(d.Elem(), fsKeyBuf)
case reflect.String:
key.Value = v3.StringToBytes(d.String())
key.Vtype = v3.StringT
case reflect.Slice:
if d.Type().Elem().Kind() == reflect.Int8 {
key.Value = d.Bytes()
key.Vtype = v3.StringT
}
case reflect.Int8:
key.Value = fsKeyBuf[:1]
fsKeyBuf[0] = v3.Int8ToBytes(int8(d.Int()))
key.Vtype = v3.Int8T
case reflect.Int16:
key.Value = fsKeyBuf[:2]
v3.Int16ToBytes(int16(d.Int()), key.Value)
key.Vtype = v3.Int16T
case reflect.Int32:
key.Value = fsKeyBuf[:4]
v3.Int32ToBytes(int32(d.Int()), key.Value)
key.Vtype = v3.Int32T
case reflect.Int64, reflect.Int:
key.Value = fsKeyBuf[:8]
v3.Int64ToBytes(d.Int(), key.Value)
key.Vtype = v3.Int64T
case reflect.Uint8:
key.Value = fsKeyBuf[:1]
fsKeyBuf[0] = v3.Uint8ToBytes(uint8(d.Uint()))
key.Vtype = v3.Uint8T
case reflect.Uint16:
key.Value = fsKeyBuf[:2]
v3.Uint16ToBytes(uint16(d.Uint()), key.Value)
key.Vtype = v3.Uint16T
case reflect.Uint32:
key.Value = fsKeyBuf[:4]
v3.Uint32ToBytes(uint32(d.Uint()), key.Value)
key.Vtype = v3.Uint32T
case reflect.Uint64, reflect.Uint:
key.Value = fsKeyBuf[:8]
v3.Uint64ToBytes(d.Uint(), key.Value)
key.Vtype = v3.Uint64T
case reflect.Bool:
key.Value = fsKeyBuf[:1]
fsKeyBuf[0] = v3.BoolToBytes(d.Bool())
key.Vtype = v3.BoolT
case reflect.Float32:
key.Value = fsKeyBuf[:4]
v3.Float32ToBytes(float32(d.Float()), key.Value)
key.Vtype = v3.Float32T
case reflect.Float64:
key.Value = fsKeyBuf[:8]
v3.Float64ToBytes(d.Float(), key.Value)
key.Vtype = v3.Float64T
}
return key
}
func encodeString(s string) v3.KeyValue {
return v3.KeyValue{
Value: v3.StringToBytes(s),
Vtype: v3.StringT,
}
}
func (enc *V3Encoder) encodeString(s string, k v3.KeyValue) error {
value := v3.Value{
Key: k,
Value: v3.KeyValue{
Value: v3.StringToBytes(s),
Vtype: v3.StringT,
},
}
v3.AddValue(enc.out, &value, enc.varintbuf)
return nil
}
func encodeBytes(b []byte) v3.KeyValue {
return v3.KeyValue{
Value: b,
Vtype: v3.BytesT,
}
}
func (enc *V3Encoder) encodeValuev3(d interface{}, k v3.KeyValue) error {
value := v3.Value{
Key: k,
}
alreadyEncoded := false
//this sets value.Value, it does al the basic types and some more
switch v := d.(type) {
case string:
value.Value.Value = v3.StringToBytes(v)
value.Value.Vtype = v3.StringT
case []byte:
value.Value.Value = v
value.Value.Vtype = v3.BytesT
case int8:
value.Value.Value = enc.fsValueBuf[:1]
enc.fsValueBuf[0] = v3.Int8ToBytes(v)
value.Value.Vtype = v3.Int8T
case int16:
value.Value.Value = enc.fsValueBuf[:2]
v3.Int16ToBytes(v, value.Value.Value)
value.Value.Vtype = v3.Int16T
case int32:
value.Value.Value = enc.fsValueBuf[:4]
v3.Int32ToBytes(v, value.Value.Value)
value.Value.Vtype = v3.Int32T
case int64:
value.Value.Value = enc.fsValueBuf[:8]
v3.Int64ToBytes(v, value.Value.Value)
value.Value.Vtype = v3.Int64T
case int:
value.Value.Value = enc.fsValueBuf[:8]
v3.Int64ToBytes(int64(v), value.Value.Value)
value.Value.Vtype = v3.Int64T
case uint8:
value.Value.Value = enc.fsValueBuf[:1]
enc.fsValueBuf[0] = v3.Uint8ToBytes(v)
value.Value.Vtype = v3.Uint8T
case uint16:
value.Value.Value = enc.fsValueBuf[:2]
v3.Uint16ToBytes(v, value.Value.Value)
value.Value.Vtype = v3.Uint16T
case uint32:
value.Value.Value = enc.fsValueBuf[:4]
v3.Uint32ToBytes(v, value.Value.Value)
value.Value.Vtype = v3.Uint32T
case uint64:
value.Value.Value = enc.fsValueBuf[:8]
v3.Uint64ToBytes(uint64(v), value.Value.Value)
value.Value.Vtype = v3.Uint64T
case uint:
value.Value.Value = enc.fsValueBuf[:8]
v3.Uint64ToBytes(uint64(v), value.Value.Value)
value.Value.Vtype = v3.Uint64T
case float32:
value.Value.Value = enc.fsValueBuf[:4]
v3.Float32ToBytes(v, value.Value.Value)
value.Value.Vtype = v3.Float32T
case float64:
value.Value.Value = enc.fsValueBuf[:8]
v3.Float64ToBytes(v, value.Value.Value)
value.Value.Vtype = v3.Float64T
case bool:
value.Value.Value = enc.fsValueBuf[:1]
enc.fsValueBuf[0] = v3.BoolToBytes(v)
value.Value.Vtype = v3.BoolT
default:
val := reflect.ValueOf(d)
kind := val.Kind()
if kind == reflect.Map {
value.Childrenn = uint64(val.Len())
value.Value.Vtype = v3.MapT
alreadyEncoded = true
v3.AddValue(enc.out, &value, enc.varintbuf)
switch v := d.(type) {
case map[string]string:
for k, v := range v {
enc.encodeString(v, encodeString(k))
}
case map[string]interface{}:
for k, v := range v {
enc.encodeValuev3(v, encodeString(k))
}
case map[interface{}]interface{}:
for k, v := range v {
enc.encodeValuev3(v, encodeKeyv3(k, &enc.fsKeyBuf))
}
default:
//if its not a specific map type
mapRange := val.MapRange()
for mapRange.Next() {
enc.encodeValuev3_reflect(mapRange.Value(), encodeKeyv3_reflect(mapRange.Key(), &enc.fsKeyBuf))
}
}
} else if kind == reflect.Array || kind == reflect.Slice {
value.Childrenn = uint64(val.Len())
value.Value.Vtype = v3.ArrT
alreadyEncoded = true
v3.AddValue(enc.out, &value, enc.varintbuf)
switch s := d.(type) {
case []string:
for _, v := range s {
enc.encodeString(v, v3.KeyValue{})
}
default:
//if its not a specific slice type
for i := 0; i < int(value.Childrenn); i++ {
err := enc.encodeValuev3_reflect(val.Index(i), v3.KeyValue{})
if err != nil {
return err
}
}
}
} else if v, ok := d.(gob.GobEncoder); ok {
var err error
value.Value.Value, err = v.GobEncode()
if err != nil {
return err
}
value.Value.Vtype = v3.BytesT
} else if kind == reflect.Struct {
typ := val.Type()
var usableFields fieldsstruct
if v, ok := enc.typeCache[typ]; ok {
usableFields = v
} else {
usableFields = getStructFields2(val)
usableFields.canGob = false
enc.typeCache[typ] = usableFields
}
value.Childrenn = uint64(usableFields.usable)
value.Value.Vtype = v3.MapT
alreadyEncoded = true
v3.AddValue(enc.out, &value, enc.varintbuf)
for fieldID, fieldName := range usableFields.fields {
if fieldName == "" {
continue
}
field := val.Field(fieldID)
err := enc.encodeValuev3_reflect(field, encodeString(fieldName))
if err != nil {
return err
}
}
} else if kind == reflect.Interface || kind == reflect.Ptr {
enc.encodeValuev3_reflect(val.Elem(), k)
alreadyEncoded = true
} else {
return v3.ErrInvalidInput
}
}
if !alreadyEncoded {
v3.AddValue(enc.out, &value, enc.varintbuf)
}
return nil
}
func (enc *V3Encoder) encodeValuev3_reflect(d reflect.Value, k v3.KeyValue) error {
value := v3.Value{
Key: k,
}
alreadyEncoded := false
typ := d.Type()
//this sets value.Value, it does al the basic types and some more
switch typ.Kind() {
case reflect.Interface, reflect.Ptr:
enc.encodeValuev3_reflect(d.Elem(), k)
alreadyEncoded = true
case reflect.String:
value.Value.Value = v3.StringToBytes(d.String())
value.Value.Vtype = v3.StringT
case reflect.Slice:
if typ.Elem().Kind() == reflect.Int8 {
value.Value.Value = d.Bytes()
value.Value.Vtype = v3.StringT
} else if typ.Elem().Kind() == reflect.String {
value.Childrenn = uint64(d.Len())
value.Value.Vtype = v3.ArrT
for i := 0; i < int(value.Childrenn); i++ {
enc.encodeString(d.Index(i).String(), v3.KeyValue{})
}
} else {
value.Childrenn = uint64(d.Len())
value.Value.Vtype = v3.ArrT
alreadyEncoded = true
v3.AddValue(enc.out, &value, enc.varintbuf)
for i := 0; i < int(value.Childrenn); i++ {
err := enc.encodeValuev3_reflect(d.Index(i), v3.KeyValue{})
if err != nil {
return err
}
}
}
case reflect.Int8:
value.Value.Value = enc.fsValueBuf[:1]
enc.fsValueBuf[0] = v3.Int8ToBytes(int8(d.Int()))
value.Value.Vtype = v3.Int8T
case reflect.Int16:
value.Value.Value = enc.fsValueBuf[:2]
v3.Int16ToBytes(int16(d.Int()), value.Value.Value)
value.Value.Vtype = v3.Int16T
case reflect.Int32:
value.Value.Value = enc.fsValueBuf[:4]
v3.Int32ToBytes(int32(d.Int()), value.Value.Value)
value.Value.Vtype = v3.Int32T
case reflect.Int64, reflect.Int:
value.Value.Value = enc.fsValueBuf[:8]
v3.Int64ToBytes(d.Int(), value.Value.Value)
value.Value.Vtype = v3.Int64T
case reflect.Uint8:
value.Value.Value = enc.fsValueBuf[:1]
enc.fsValueBuf[0] = v3.Uint8ToBytes(uint8(d.Uint()))
value.Value.Vtype = v3.Uint8T
case reflect.Uint16:
value.Value.Value = enc.fsValueBuf[:2]
v3.Uint16ToBytes(uint16(d.Uint()), value.Value.Value)
value.Value.Vtype = v3.Uint16T
case reflect.Uint32:
value.Value.Value = enc.fsValueBuf[:4]
v3.Uint32ToBytes(uint32(d.Uint()), value.Value.Value)
value.Value.Vtype = v3.Uint32T
case reflect.Uint64, reflect.Uint:
value.Value.Value = enc.fsValueBuf[:8]
v3.Uint64ToBytes(d.Uint(), value.Value.Value)
value.Value.Vtype = v3.Uint64T
case reflect.Bool:
value.Value.Value = enc.fsValueBuf[:1]
enc.fsValueBuf[0] = v3.BoolToBytes(d.Bool())
value.Value.Vtype = v3.BoolT
case reflect.Float32:
value.Value.Value = enc.fsValueBuf[:4]
v3.Float32ToBytes(float32(d.Float()), value.Value.Value)
value.Value.Vtype = v3.Float32T
case reflect.Float64:
value.Value.Value = enc.fsValueBuf[:8]
v3.Float64ToBytes(d.Float(), value.Value.Value)
value.Value.Vtype = v3.Float64T
case reflect.Map:
//TODO Only check the types first and only then convert??
i := d.Interface()
value.Childrenn = uint64(d.Len())
value.Value.Vtype = v3.MapT
alreadyEncoded = true
v3.AddValue(enc.out, &value, enc.varintbuf)
switch v := i.(type) {
case map[string]string:
for k, v := range v {
enc.encodeString(v, encodeString(k))
}
case map[string]interface{}:
for k, v := range v {
enc.encodeValuev3(v, encodeString(k))
}
case map[interface{}]interface{}:
for k, v := range v {
enc.encodeValuev3(v, encodeKeyv3(k, &enc.fsKeyBuf))
}
default:
//if its not a specific map type
mapRange := d.MapRange()
for mapRange.Next() {
enc.encodeValuev3_reflect(mapRange.Value(), encodeKeyv3_reflect(mapRange.Key(), &enc.fsKeyBuf))
}
}
case reflect.Array:
value.Childrenn = uint64(d.Len())
value.Value.Vtype = v3.ArrT
alreadyEncoded = true
v3.AddValue(enc.out, &value, enc.varintbuf)
//if its not a specific slice type
for i := 0; i < int(value.Childrenn); i++ {
err := enc.encodeValuev3_reflect(d.Index(i), v3.KeyValue{})
if err != nil {
return err
}
}
case reflect.Struct:
var usableFields fieldsstruct
if v, ok := enc.typeCache[typ]; ok {
usableFields = v
} else {
usableFields = getStructFields2(d)
usableFields.canGob = canGobEncode(d)
enc.typeCache[typ] = usableFields
}
if usableFields.canGob {
if i, ok := d.Interface().(gob.GobEncoder); ok {
var err error
value.Value.Value, err = i.GobEncode()
if err != nil {
return err
}
value.Value.Vtype = v3.BytesT
}
break
}
value.Childrenn = uint64(usableFields.usable)
value.Value.Vtype = v3.MapT
alreadyEncoded = true
v3.AddValue(enc.out, &value, enc.varintbuf)
for fieldID, fieldName := range usableFields.fields {
if fieldName == "" {
continue
}
field := d.Field(fieldID)
err := enc.encodeValuev3_reflect(field, encodeString(fieldName))
if err != nil {
return err
}
}
}
if !alreadyEncoded {
v3.AddValue(enc.out, &value, enc.varintbuf)
}
return nil
}
func getStructFields2(val reflect.Value) fieldsstruct {
fields := fieldsstruct{}
fields.fields = make([]string, val.NumField())
for i := 0; i < val.NumField(); i++ {
field := val.Type().Field(i)
if field.PkgPath != "" || !val.Field(i).CanInterface() {
continue
}
fields.fields[i] = getFieldName(field)
fields.usable++
}
return fields
}
func getStructFieldsDec(val reflect.Value) map[string]fieldMeta {
usableFields := make(map[string]fieldMeta, val.NumField())
for i := 0; i < val.NumField(); i++ {
field := val.Type().Field(i)
if field.PkgPath != "" || !val.Field(i).CanInterface() {
continue
}
field.Type.Name()
usableFields[getFieldName(field)] = fieldMeta{
fieldnr: i,
isBasicType: isKeyType(field.Type),
}
}
return usableFields
}
type fieldMeta struct {
fieldnr int
isBasicType bool
}
//V3Decoder is the decoder used to decode a ttv3 data stream
type V3Decoder struct {
didInit bool
isStream bool
didDecode bool
in v3.Reader
typeCache map[string]map[string]fieldMeta
yetToRead uint64
allocLimmit uint64
readBuf []byte
sync.Mutex
}
//NewV3Decoder creates aa new V3Decoder to decode a ttv3 data stream.
//The init flag specifies wether it should initialize the decoder.
//Initializing the decoder blocks until at least the first 2 bytes are read.
func NewV3Decoder(in v3.Reader, init bool) *V3Decoder {
dec := V3Decoder{
didInit: !init,
in: in,
typeCache: map[string]map[string]fieldMeta{},
allocLimmit: math.MaxUint64,
}
if init {
dec.Init()
}
return &dec
}
//Init initizes the decoder, initizlizing blocks until at least the first
//2 bytes are read.
func (dec *V3Decoder) Init() error {
version, err := dec.in.ReadByte()
if version != 3 || err != nil {
return v3.ErrInvalidInput
}
b, err := dec.in.ReadByte()
if err != nil {
return v3.ErrInvalidInput
}
dec.isStream = b&(1<<7) != 0
dec.didDecode = false
return nil
}
//SetAllocLimmit sets the limmit of allocations. This does not induce
//a global limmit in tt but only for individual allocations
func (dec *V3Decoder) SetAllocLimmit(limit uint64) {
dec.allocLimmit = limit
}
//Decode decodes a one ttv3 encoded value from a stream.
//Note that a stream of one value is the same as one value just with
//the stream bit set
func (dec *V3Decoder) Decode(e interface{}) error {
dec.Lock()
ret := dec.decode(e)
dec.Unlock()
return ret
}
//Decodev3 decodes a ttv3 encoded byte-slice into tt.Data
func Decodev3(buf v3.Reader, e interface{}) error {
dec := NewV3Decoder(buf, true)
//We dont have to lock/unlock since we know we are the only one witha access
return dec.decode(e)
}
func (dec *V3Decoder) decode(e interface{}) error {
var err error
if !dec.isStream {
if dec.didDecode {
return errors.New("TT: attempt to decode twice from non-stream")
}
dec.didDecode = true
}
if e == nil {
var v v3.Value
err = v.FromBytes(dec.in, dec.allocLimmit, &dec.readBuf)
if err != nil {
return err
}
return clearNextValues(dec.in, v.Childrenn, dec.allocLimmit, &dec.readBuf)
}
value := reflect.ValueOf(e)
// If e represents a value as opposed to a pointer, the answer won't
// get back to the caller. Make sure it's a pointer.
if value.Type().Kind() != reflect.Ptr {
return errors.New("TT: attempt to decode into a non-pointer")
}
if value.IsValid() {
if value.Kind() == reflect.Ptr && !value.IsNil() {
// That's okay, we'll store through the pointer.
} else if !value.CanSet() {
return errors.New("TT: DecodeValue of unassignable value")
}
} else {
var v v3.Value
err = v.FromBytes(dec.in, dec.allocLimmit, &dec.readBuf)
if err != nil {
return err
}
return clearNextValues(dec.in, v.Childrenn, dec.allocLimmit, &dec.readBuf)
}
var v v3.Value
err = v.FromBytes(dec.in, dec.allocLimmit, &dec.readBuf)
if err != nil {
return err
}
dec.yetToRead = v.Childrenn
err = dec.decodeValuev3(v, value, true)
if dec.yetToRead != 0 {
err2 := clearNextValues(dec.in, dec.yetToRead, dec.allocLimmit, &dec.readBuf)
if err == nil {
return err2
}
}
return err
}
func decodeUndefined(data v3.KeyValue, e reflect.Value, clone bool) error {
return errors.New("TT: cannot unmarshal invalid type:" + strconv.Itoa(int(data.Vtype)))
}
func decodeStringkey(data v3.KeyValue, e reflect.Value, clone bool) error {
var val string
if clone {
val = v3.StringFromBytesclone(data.Value)
} else {
val = v3.StringFromBytes(data.Value)
}
if e.Kind() != reflect.String {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal string into " + e.Type().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetString(val)
}
return nil
}
func decodeBytes(data v3.KeyValue, e reflect.Value, clone bool) error {
var val []byte
if clone {
val = make([]byte, len(data.Value))
copy(val, data.Value)
} else {
val = data.Value
}
if e.Kind() != reflect.Slice || e.Type().Elem().Kind() != reflect.Uint8 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal bytes into " + e.Type().String() + " Go type")
}
e.Set(reflect.ValueOf(data.Value))
} else {
e.SetBytes(data.Value)
}
return nil
}
func decodeInt8(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 1 {
var buf [1]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Int8FromBytes(data.Value[0])
if e.Kind() != reflect.Int8 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal int8 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetInt(int64(val))
}
return nil
}
func decodeInt16(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 2 {
var buf [2]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Int16FromBytes(data.Value)
if e.Kind() != reflect.Int16 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal int16 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetInt(int64(val))
}
return nil
}
func decodeInt32(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 4 {
var buf [4]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Int32FromBytes(data.Value)
if e.Kind() != reflect.Int32 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal int32 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetInt(int64(val))
}
return nil
}
func decodeInt64(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 8 {
var buf [8]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Int64FromBytes(data.Value)
if e.Kind() != reflect.Int64 && e.Kind() != reflect.Int {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal int64 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetInt(val)
}
return nil
}
func decodeUint8(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 1 {
var buf [1]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Uint8FromBytes(data.Value[0])
if e.Kind() != reflect.Uint8 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal uint8 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetUint(uint64(val))
}
return nil
}
func decodeUint16(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 2 {
var buf [2]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Uint16FromBytes(data.Value)
if e.Kind() != reflect.Uint16 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal uint16 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetUint(uint64(val))
}
return nil
}
func decodeUint32(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 4 {
var buf [4]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Uint32FromBytes(data.Value)
if e.Kind() != reflect.Uint32 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal uint32 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetUint(uint64(val))
}
return nil
}
func decodeUint64(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 8 {
var buf [8]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Uint64FromBytes(data.Value)
if e.Kind() != reflect.Uint64 && e.Kind() != reflect.Uint {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal uint64 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetUint(val)
}
return nil
}
func decodeBool(data v3.KeyValue, e reflect.Value, clone bool) error {
val := false
if len(data.Value) < 1 {
val = v3.BoolFromBytes([]byte{0})
} else {
val = v3.BoolFromBytes(data.Value)
}
if e.Kind() != reflect.Bool {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal bytes into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetBool(val)
}
return nil
}
func decodeFloat32(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 4 {
var buf [4]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Float32FromBytes(data.Value)
if e.Kind() != reflect.Float32 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal float32 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetFloat(float64(val))
}
return nil
}
func decodeFloat64(data v3.KeyValue, e reflect.Value, clone bool) error {
if len(data.Value) < 8 {
var buf [8]byte
copy(buf[:], data.Value)
data.Value = buf[:]
}
val := v3.Float64FromBytes(data.Value)
if e.Kind() != reflect.Float64 {
if e.Kind() != reflect.Interface || e.Type().NumMethod() != 0 {
return errors.New("TT: cannot unmarshal float64 into " + e.Kind().String() + " Go type")
}
e.Set(reflect.ValueOf(val))
} else {
e.SetFloat(val)
}
return nil
}
func decodeMap(dec *V3Decoder, v v3.Value, e reflect.Value) error {
if e.Kind() == reflect.Interface && e.NumMethod() == 0 {
children := v.Childrenn
m := make(map[interface{}]interface{}, children)
var err error
key := reflect.New(reflect.TypeOf(m).Key()).Elem()
for i := uint64(0); i < children; i++ {
err = v.FromBytes(dec.in, dec.allocLimmit, &dec.readBuf)
if err != nil {
return err
}
dec.yetToRead += v.Childrenn - 1
err = decodeKeyv3(v.Key, key, true)
if err != nil {
return err
}
k := key.Interface()