How to use UnmarshalText method of types Package

Best K6 code snippet using types.UnmarshalText

json.go

Source:json.go Github

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...42func (b *Bytes) UnmarshalJSON(input []byte) error {43 if !isString(input) {44 return errNonString(bytesT)45 }46 return wrapTypeError(b.UnmarshalText(input[1:len(input)-1]), bytesT)47}48// UnmarshalText implements encoding.TextUnmarshaler.49func (b *Bytes) UnmarshalText(input []byte) error {50 raw, err := checkText(input, true)51 if err != nil {52 return err53 }54 dec := make([]byte, len(raw)/2)55 if _, err = hex.Decode(dec, raw); err != nil {56 err = mapError(err)57 } else {58 *b = dec59 }60 return err61}62// String returns the hex encoding of b.63func (b Bytes) String() string {64 return Encode(b)65}66// UnmarshalFixedJSON decodes the input as a string with 0x prefix. The length of out67// determines the required input length. This function is commonly used to implement the68// UnmarshalJSON method for fixed-size types.69func UnmarshalFixedJSON(typ reflect.Type, input, out []byte) error {70 if !isString(input) {71 return errNonString(typ)72 }73 return wrapTypeError(UnmarshalFixedText(typ.String(), input[1:len(input)-1], out), typ)74}75// UnmarshalFixedText decodes the input as a string with 0x prefix. The length of out76// determines the required input length. This function is commonly used to implement the77// UnmarshalText method for fixed-size types.78func UnmarshalFixedText(typname string, input, out []byte) error {79 raw, err := checkText(input, true)80 if err != nil {81 return err82 }83 if len(raw)/2 != len(out) {84 return fmt.Errorf("hex string has length %d, want %d for %s", len(raw), len(out)*2, typname)85 }86 // Pre-verify syntax before modifying out.87 for _, b := range raw {88 if decodeNibble(b) == badNibble {89 return ErrSyntax90 }91 }92 hex.Decode(out, raw)93 return nil94}95// UnmarshalFixedUnprefixedText decodes the input as a string with optional 0x prefix. The96// length of out determines the required input length. This function is commonly used to97// implement the UnmarshalText method for fixed-size types.98func UnmarshalFixedUnprefixedText(typname string, input, out []byte) error {99 raw, err := checkText(input, false)100 if err != nil {101 return err102 }103 if len(raw)/2 != len(out) {104 return fmt.Errorf("hex string has length %d, want %d for %s", len(raw), len(out)*2, typname)105 }106 // Pre-verify syntax before modifying out.107 for _, b := range raw {108 if decodeNibble(b) == badNibble {109 return ErrSyntax110 }111 }112 hex.Decode(out, raw)113 return nil114}115// Big marshals/unmarshals as a JSON string with 0x prefix.116// The zero value marshals as "0x0".117//118// Negative integers are not supported at this time. Attempting to marshal them will119// return an error. Values larger than 256bits are rejected by Unmarshal but will be120// marshaled without error.121type Big big.Int122// MarshalText implements encoding.TextMarshaler123func (b Big) MarshalText() ([]byte, error) {124 return []byte(EncodeBig((*big.Int)(&b))), nil125}126// UnmarshalJSON implements json.Unmarshaler.127func (b *Big) UnmarshalJSON(input []byte) error {128 if !isString(input) {129 return errNonString(bigT)130 }131 return wrapTypeError(b.UnmarshalText(input[1:len(input)-1]), bigT)132}133// UnmarshalText implements encoding.TextUnmarshaler134func (b *Big) UnmarshalText(input []byte) error {135 raw, err := checkNumberText(input)136 if err != nil {137 return err138 }139 if len(raw) > 64 {140 return ErrBig256Range141 }142 words := make([]big.Word, len(raw)/bigWordNibbles+1)143 end := len(raw)144 for i := range words {145 start := end - bigWordNibbles146 if start < 0 {147 start = 0148 }149 for ri := start; ri < end; ri++ {150 nib := decodeNibble(raw[ri])151 if nib == badNibble {152 return ErrSyntax153 }154 words[i] *= 16155 words[i] += big.Word(nib)156 }157 end = start158 }159 var dec big.Int160 dec.SetBits(words)161 *b = (Big)(dec)162 return nil163}164// ToInt converts b to a big.Int.165func (b *Big) ToInt() *big.Int {166 return (*big.Int)(b)167}168// String returns the hex encoding of b.169func (b *Big) String() string {170 return EncodeBig(b.ToInt())171}172// Uint64 marshals/unmarshals as a JSON string with 0x prefix.173// The zero value marshals as "0x0".174type Uint64 uint64175// MarshalText implements encoding.TextMarshaler.176func (b Uint64) MarshalText() ([]byte, error) {177 buf := make([]byte, 2, 10)178 copy(buf, `0x`)179 buf = strconv.AppendUint(buf, uint64(b), 16)180 return buf, nil181}182// UnmarshalJSON implements json.Unmarshaler.183func (b *Uint64) UnmarshalJSON(input []byte) error {184 if !isString(input) {185 return errNonString(uint64T)186 }187 return wrapTypeError(b.UnmarshalText(input[1:len(input)-1]), uint64T)188}189// UnmarshalText implements encoding.TextUnmarshaler190func (b *Uint64) UnmarshalText(input []byte) error {191 raw, err := checkNumberText(input)192 if err != nil {193 return err194 }195 if len(raw) > 16 {196 return ErrUint64Range197 }198 var dec uint64199 for _, byte := range raw {200 nib := decodeNibble(byte)201 if nib == badNibble {202 return ErrSyntax203 }204 dec *= 16205 dec += nib206 }207 *b = Uint64(dec)208 return nil209}210// String returns the hex encoding of b.211func (b Uint64) String() string {212 return EncodeUint64(uint64(b))213}214// Uint marshals/unmarshals as a JSON string with 0x prefix.215// The zero value marshals as "0x0".216type Uint uint217// MarshalText implements encoding.TextMarshaler.218func (b Uint) MarshalText() ([]byte, error) {219 return Uint64(b).MarshalText()220}221// UnmarshalJSON implements json.Unmarshaler.222func (b *Uint) UnmarshalJSON(input []byte) error {223 if !isString(input) {224 return errNonString(uintT)225 }226 return wrapTypeError(b.UnmarshalText(input[1:len(input)-1]), uintT)227}228// UnmarshalText implements encoding.TextUnmarshaler.229func (b *Uint) UnmarshalText(input []byte) error {230 var u64 Uint64231 err := u64.UnmarshalText(input)232 if u64 > Uint64(^uint(0)) || err == ErrUint64Range {233 return ErrUintRange234 } else if err != nil {235 return err236 }237 *b = Uint(u64)238 return nil239}240// String returns the hex encoding of b.241func (b Uint) String() string {242 return EncodeUint64(uint64(b))243}244func isString(input []byte) bool {245 return len(input) >= 2 && input[0] == '"' && input[len(input)-1] == '"'...

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UnmarshalText

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1func main() {2 err := s.UnmarshalText([]byte("hello"))3 if err != nil {4 panic(err)5 }6}7func main() {8 err := s.UnmarshalText([]byte("hello"))9 if err != nil {10 panic(err)11 }12}13func main() {14 err := s.UnmarshalText([]byte("hello"))15 if err != nil {16 panic(err)17 }18}19func main() {20 err := s.UnmarshalText([]byte("hello"))21 if err != nil {22 panic(err)23 }24}25func main() {26 err := s.UnmarshalText([]byte("hello"))27 if err != nil {28 panic(err)29 }30}31func main() {32 err := s.UnmarshalText([]byte("hello"))33 if err != nil {34 panic(err)35 }36}37func main() {38 err := s.UnmarshalText([]byte("hello"))39 if err != nil {40 panic(err)41 }42}43func main() {44 err := s.UnmarshalText([]byte("hello"))45 if err != nil {46 panic(err)47 }48}49func main() {

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UnmarshalText

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1import (2type types struct {3}4func (t *types) UnmarshalText(b []byte) error {5 t.Name = "UnmarshalText " + string(b)6}7func main() {8 err := json.Unmarshal([]byte(`"hello"`), &t)9 if err != nil {10 fmt.Println(err)11 }12 fmt.Println(t.Name)13}14import (15type types struct {16}17func (t *types) UnmarshalJSON(b []byte) error {18 t.Name = "UnmarshalJSON " + string(b)19}20func main() {21 err := json.Unmarshal([]byte(`"hello"`), &t)22 if err != nil {23 fmt.Println(err)24 }25 fmt.Println(t.Name)26}27import (28type types struct {29}30func (t *types) MarshalText() ([]byte, error) {31 return []byte("MarshalText " + t.Name), nil32}33func main() {34 t := types{Name: "hello"}35 b, err := json.Marshal(t)36 if err != nil {37 fmt.Println(err)38 }39 fmt.Println(string(b))40}41import (42type types struct {43}44func (t *types) MarshalJSON() ([]byte, error) {45 return []byte("MarshalJSON " + t.Name), nil46}47func main() {48 t := types{Name: "hello"}49 b, err := json.Marshal(t)50 if err != nil {51 fmt.Println(err)52 }53 fmt.Println(string(b))54}

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UnmarshalText

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1func main() {2 err := t.UnmarshalText([]byte("hello"))3 if err != nil {4 log.Fatal(err)5 }6 fmt.Println(t)7}

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UnmarshalText

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1func main() {2 err := x.UnmarshalText([]byte("hello"))3 if err != nil {4 panic(err)5 }6 fmt.Println(x)7}8func (t *types) UnmarshalText(text []byte) error {9 if string(text) == "hello" {10 }11 return errors.New("bad input")12}

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UnmarshalText

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1import (2func main() {3 t := time.Now()4 b, err := t.MarshalText()5 if err != nil {6 log.Fatal(err)7 }8 fmt.Printf("Marshaled[%s]\n", b)9 if err := nt.UnmarshalText(b); err != nil {10 log.Fatal(err)11 }12 fmt.Printf("Unmarshaled[%s]\n", nt)13}14func (t Time) MarshalText() ([]byte, error) {15 return []byte(t.Format(time.RFC3339)), nil16}17func (t *Time) UnmarshalText(text []byte) error {18 nt, err := time.Parse(time.RFC3339, string(text))19 if err != nil {20 }21 *t = Time(nt)22}

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UnmarshalText

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1import (2func main() {3 err := t.UnmarshalText([]byte(s))4 if err != nil {5 fmt.Println(err)6 }7 fmt.Println(t)8}

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UnmarshalText

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1var m map[string]interface{}2var a []interface{}3err := json.Unmarshal([]byte(`"string"`), &s)4err = json.Unmarshal([]byte(`1`), &i)5err = json.Unmarshal([]byte(`1.1`), &f)6err = json.Unmarshal([]byte(`true`), &b)7err = json.Unmarshal([]byte(`{"a":1}`), &m)8err = json.Unmarshal([]byte(`[1, 2, 3]`), &a)9fmt.Println(s)10fmt.Println(i)11fmt.Println(f)12fmt.Println(b)13fmt.Println(m)14fmt.Println(a)15var m map[string]interface{}16var a []interface{}17err := json.Unmarshal([]byte(`"string"`), &s)18err = json.Unmarshal([]byte(`1`), &i)19err = json.Unmarshal([]byte(`1.1`), &f)20err = json.Unmarshal([]byte(`true`), &b)21err = json.Unmarshal([]byte(`{"a":1}`), &m)22err = json.Unmarshal([]byte(`[1, 2, 3]`), &a)23fmt.Println(s)24fmt.Println(i)25fmt.Println(f)26fmt.Println(b)27fmt.Println(m)28fmt.Println(a)29var m map[string]interface{}30var a []interface{}31err := json.Unmarshal([]byte(`"string"`), &s)32err = json.Unmarshal([]byte(`1`), &i)33err = json.Unmarshal([]byte(`1.1`), &f)34err = json.Unmarshal([]byte(`true`), &b)35err = json.Unmarshal([]byte(`{"a":1}`), &m)36err = json.Unmarshal([]byte(`[1, 2, 3]`), &a)37fmt.Println(s)38fmt.Println(i)

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