hexutility

Documentation

Index

• Variables
• func Encode(b []byte) string
• func EncodeTs(number uint64) []byte
• func FromHex(s string) []byte
• func Has0xPrefix(str string) bool
• func Hex2Bytes(str string) []byte
• func IsHex(str string) bool
• func MustDecodeHex(in string) []byte
• func MustDecodeString(s string) []byte
• func UnmarshalFixedJSON(typ reflect.Type, input, out []byte) error
• func UnmarshalFixedText(typeName string, input, out []byte) error
• type Bytes
  • func (b Bytes) MarshalText() ([]byte, error)
  • func (b Bytes) String() string
  • func (b *Bytes) UnmarshalJSON(input []byte) error
  • func (b *Bytes) UnmarshalText(input []byte) error

Variables

var (
	ErrMissingPrefix = &decError{"hex string without 0x prefix"}
	ErrOddLength     = &decError{"hex string of odd length"}
	ErrSyntax        = &decError{"invalid hex string"}
)

Functions

func Encode

func Encode(b []byte) string

Encode encodes b as a hex string with 0x prefix.

func EncodeTs

func EncodeTs(number uint64) []byte

EncodeTs encodes a TimeStamp (BlockNumber or TxNumber or other uin64) as big endian

func FromHex

func FromHex(s string) []byte

func Has0xPrefix

func Has0xPrefix(str string) bool

Has0xPrefix validates str begins with '0x' or '0X'.

func Hex2Bytes

func Hex2Bytes(str string) []byte

Hex2Bytes returns the bytes represented by the hexadecimal string str.

func IsHex

func IsHex(str string) bool

IsHex validates whether each byte is valid hexadecimal string.

func MustDecodeHex

func MustDecodeHex(in string) []byte

func MustDecodeString

func MustDecodeString(s string) []byte

func UnmarshalFixedJSON

func UnmarshalFixedJSON(typ reflect.Type, input, out []byte) error

UnmarshalFixedJSON decodes the input as a string with 0x prefix. The length of out determines the required input length. This function is commonly used to implement the UnmarshalJSON method for fixed-size types.

func UnmarshalFixedText

func UnmarshalFixedText(typeName string, input, out []byte) error

UnmarshalFixedText decodes the input as a string with 0x prefix. The length of out determines the required input length. This function is commonly used to implement the UnmarshalText method for fixed-size types.

Types

type Bytes

type Bytes []byte

Bytes marshals/unmarshals as a JSON string with 0x prefix. The empty slice marshals as "0x".

func (Bytes) MarshalText

func (b Bytes) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler

func (Bytes) String

func (b Bytes) String() string

String returns the hex encoding of b.

func (*Bytes) UnmarshalJSON

func (b *Bytes) UnmarshalJSON(input []byte) error

UnmarshalJSON implements json.Unmarshaler.

func (*Bytes) UnmarshalText

func (b *Bytes) UnmarshalText(input []byte) error

UnmarshalText implements encoding.TextUnmarshaler.