hexutil

Documentation

Index

• Variables
• func Decode(s string) []byte
• func DecodeHash(s string) (common.Hash, error)
• func Encode(b []byte) string
• func EncodeBig(bigint *big.Int) string
• func EncodeUint64(i uint64) string
• func UnmarshalFixedJSON(typ reflect.Type, input, out []byte) error
• func UnmarshalFixedText(typname string, input, out []byte) error
• func UnmarshalFixedUnprefixedText(typname string, input, out []byte) error
• type Big
  • func (b Big) ImplementsGraphQLType(name string) bool
  • func (b Big) MarshalText() ([]byte, error)
  • func (b *Big) String() string
  • func (b *Big) ToInt() *big.Int
  • func (b *Big) UnmarshalGraphQL(input interface{}) error
  • func (b *Big) UnmarshalJSON(input []byte) error
  • func (b *Big) UnmarshalText(input []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
• type Uint
  • func (b Uint) MarshalText() ([]byte, error)
  • func (b Uint) String() string
  • func (b *Uint) UnmarshalJSON(input []byte) error
  • func (b *Uint) UnmarshalText(input []byte) error
• type Uint64
  • func (b Uint64) ImplementsGraphQLType(name string) bool
  • func (b Uint64) MarshalText() ([]byte, error)
  • func (b Uint64) String() string
  • func (b *Uint64) UnmarshalGraphQL(input interface{}) error
  • func (b *Uint64) UnmarshalJSON(input []byte) error
  • func (b *Uint64) UnmarshalText(input []byte) error

Variables

var (
	ErrEmptyString   = &decError{"empty hex string"}
	ErrSyntax        = &decError{"invalid hex string"}
	ErrMissingPrefix = &decError{"hex string without 0x prefix"}
	ErrOddLength     = &decError{"hex string of odd length"}
	ErrEmptyNumber   = &decError{"hex string \"0x\""}
	ErrLeadingZero   = &decError{"hex number with leading zero digits"}
	ErrUint64Range   = &decError{"hex number > 64 bits"}
	ErrUintRange     = &decError{fmt.Sprintf("hex number > %d bits", uintBits)}
	ErrBig256Range   = &decError{"hex number > 256 bits"}
)

Errors

Functions

func Decode

func Decode(s string) []byte

func DecodeHash

func DecodeHash(s string) (common.Hash, error)

decodeHash parses a hex-encoded 32-byte hash. The input may optionally be prefixed by 0x and can have a byte length up to 32.

func Encode

func Encode(b []byte) string

func EncodeBig

func EncodeBig(bigint *big.Int) string

EncodeBig encodes bigint as a hex string with 0x prefix. The sign of the integer is ignored.

func EncodeUint64

func EncodeUint64(i uint64) string

EncodeUint64 encodes i as a hex string with 0x prefix.

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(typname 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.

func UnmarshalFixedUnprefixedText

func UnmarshalFixedUnprefixedText(typname string, input, out []byte) error

UnmarshalFixedUnprefixedText decodes the input as a string with optional 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 Big

type Big big.Int

Big marshals/unmarshals as a JSON string with 0x prefix. The zero value marshals as "0x0".

Negative integers are not supported at this time. Attempting to marshal them will return an error. Values larger than 256bits are rejected by Unmarshal but will be marshaled without error.

func (Big) ImplementsGraphQLType

func (b Big) ImplementsGraphQLType(name string) bool

ImplementsGraphQLType returns true if Big implements the provided GraphQL type.

func (Big) MarshalText

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

MarshalText implements encoding.TextMarshaler

func (*Big) String

func (b *Big) String() string

String returns the hex encoding of b.

func (*Big) ToInt

func (b *Big) ToInt() *big.Int

ToInt converts b to a big.Int.

func (*Big) UnmarshalGraphQL

func (b *Big) UnmarshalGraphQL(input interface{}) error

UnmarshalGraphQL unmarshals the provided GraphQL query data.

func (*Big) UnmarshalJSON

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

UnmarshalJSON implements json.Unmarshaler.

func (*Big) UnmarshalText

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

UnmarshalText implements encoding.TextUnmarshaler

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.

type Uint

type Uint uint

Uint marshals/unmarshals as a JSON string with 0x prefix. The zero value marshals as "0x0".

func (Uint) MarshalText

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

MarshalText implements encoding.TextMarshaler.

func (Uint) String

func (b Uint) String() string

String returns the hex encoding of b.

func (*Uint) UnmarshalJSON

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

UnmarshalJSON implements json.Unmarshaler.

func (*Uint) UnmarshalText

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

UnmarshalText implements encoding.TextUnmarshaler.

type Uint64

type Uint64 uint64

Uint64 marshals/unmarshals as a JSON string with 0x prefix. The zero value marshals as "0x0".

func (Uint64) ImplementsGraphQLType

func (b Uint64) ImplementsGraphQLType(name string) bool

ImplementsGraphQLType returns true if Uint64 implements the provided GraphQL type.

func (Uint64) MarshalText

func (b Uint64) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler.

func (Uint64) String

func (b Uint64) String() string

String returns the hex encoding of b.

func (*Uint64) UnmarshalGraphQL

func (b *Uint64) UnmarshalGraphQL(input interface{}) error

UnmarshalGraphQL unmarshals the provided GraphQL query data.

func (*Uint64) UnmarshalJSON

func (b *Uint64) UnmarshalJSON(input []byte) error

UnmarshalJSON implements json.Unmarshaler.

func (*Uint64) UnmarshalText

func (b *Uint64) UnmarshalText(input []byte) error

UnmarshalText implements encoding.TextUnmarshaler