smartcontract

Documentation

Index

• func CreateDefaultMultiSigRedeemScript(publicKeys keys.PublicKeys) ([]byte, error)
• func CreateMajorityMultiSigRedeemScript(publicKeys keys.PublicKeys) ([]byte, error)
• func CreateMultiSigRedeemScript(m int, publicKeys keys.PublicKeys) ([]byte, error)
• func ExpandParameterToEmitable(param Parameter) (interface{}, error)
• func GetDefaultHonestNodeCount(n int) int
• func GetMajorityHonestNodeCount(n int) int
• type ParamType
  • func ConvertToParamType(val int) (ParamType, error)
  • func ParseParamType(typ string) (ParamType, error)
  • func (pt *ParamType) DecodeBinary(r *io.BinReader)
  • func (pt ParamType) EncodeBinary(w *io.BinWriter)
  • func (pt ParamType) MarshalJSON() ([]byte, error)
  • func (pt ParamType) MarshalYAML() (interface{}, error)
  • func (pt ParamType) String() string
  • func (pt *ParamType) UnmarshalJSON(data []byte) error
  • func (pt *ParamType) UnmarshalYAML(unmarshal func(interface{}) error) error
• type Parameter
  • func NewParameter(t ParamType) Parameter
  • func NewParameterFromString(in string) (*Parameter, error)
  • func ParameterFromStackItem(i stackitem.Item, seen map[stackitem.Item]bool) Parameter
  • func (p *Parameter) DecodeBinary(r *io.BinReader)
  • func (p *Parameter) EncodeBinary(w *io.BinWriter)
  • func (p Parameter) MarshalJSON() ([]byte, error)
  • func (p Parameter) TryParse(dest interface{}) error
  • func (p *Parameter) UnmarshalJSON(data []byte) (err error)
• type ParameterPair
  • func (p *ParameterPair) DecodeBinary(r *io.BinReader)
  • func (p *ParameterPair) EncodeBinary(w *io.BinWriter)
• type Params
  • func (p Params) TryParseArray(vals ...interface{}) error

Functions

func CreateDefaultMultiSigRedeemScript

func CreateDefaultMultiSigRedeemScript(publicKeys keys.PublicKeys) ([]byte, error)

CreateDefaultMultiSigRedeemScript creates an "m out of n" type verification script using publicKeys length with the default BFT assumptions of (n - (n-1)/3) for m.

func CreateMajorityMultiSigRedeemScript

func CreateMajorityMultiSigRedeemScript(publicKeys keys.PublicKeys) ([]byte, error)

CreateMajorityMultiSigRedeemScript creates an "m out of n" type verification script using publicKeys length with m set to majority.

func CreateMultiSigRedeemScript

func CreateMultiSigRedeemScript(m int, publicKeys keys.PublicKeys) ([]byte, error)

CreateMultiSigRedeemScript creates an "m out of n" type verification script where n is the length of publicKeys.

func ExpandParameterToEmitable

func ExpandParameterToEmitable(param Parameter) (interface{}, error)

ExpandParameterToEmitable converts parameter to a type which can be handled as an array item by emit.Array. It correlates with the way RPC server handles FuncParams for invoke* calls inside the request.ExpandArrayIntoScript function.

func GetDefaultHonestNodeCount

func GetDefaultHonestNodeCount(n int) int

GetDefaultHonestNodeCount returns minimum number of honest nodes required for network of size n.

func GetMajorityHonestNodeCount

func GetMajorityHonestNodeCount(n int) int

GetMajorityHonestNodeCount returns minimum number of honest nodes required for majority-style agreement.

Types

type ParamType

type ParamType int

ParamType represents the Type of the smart contract parameter.

const (
	UnknownType          ParamType = -1
	AnyType              ParamType = 0x00
	BoolType             ParamType = 0x10
	IntegerType          ParamType = 0x11
	ByteArrayType        ParamType = 0x12
	StringType           ParamType = 0x13
	Hash160Type          ParamType = 0x14
	Hash256Type          ParamType = 0x15
	PublicKeyType        ParamType = 0x16
	SignatureType        ParamType = 0x17
	ArrayType            ParamType = 0x20
	MapType              ParamType = 0x22
	InteropInterfaceType ParamType = 0x30
	VoidType             ParamType = 0xff
)

A list of supported smart contract parameter types.

func ConvertToParamType

func ConvertToParamType(val int) (ParamType, error)

ConvertToParamType converts provided value to parameter type if it's a valid type.

func ParseParamType

func ParseParamType(typ string) (ParamType, error)

ParseParamType is a user-friendly string to ParamType converter, it's case-insensitive and makes the following conversions:

signature -> SignatureType
bool, boolean -> BoolType
int, integer -> IntegerType
hash160 -> Hash160Type
hash256 -> Hash256Type
bytes, bytearray, filebytes -> ByteArrayType
key, publickey -> PublicKeyType
string -> StringType
array, struct -> ArrayType
map -> MapType
interopinterface -> InteropInterfaceType
void -> VoidType

anything else generates an error.

func (*ParamType) DecodeBinary

func (pt *ParamType) DecodeBinary(r *io.BinReader)

DecodeBinary implements io.Serializable interface.

func (ParamType) EncodeBinary

func (pt ParamType) EncodeBinary(w *io.BinWriter)

EncodeBinary implements io.Serializable interface.

func (ParamType) MarshalJSON

func (pt ParamType) MarshalJSON() ([]byte, error)

MarshalJSON implements the json.Marshaler interface.

func (ParamType) MarshalYAML

func (pt ParamType) MarshalYAML() (interface{}, error)

MarshalYAML implements the YAML Marshaler interface.

func (ParamType) String

func (pt ParamType) String() string

String implements the stringer interface.

func (*ParamType) UnmarshalJSON

func (pt *ParamType) UnmarshalJSON(data []byte) error

UnmarshalJSON implements json.Unmarshaler interface.

func (*ParamType) UnmarshalYAML

func (pt *ParamType) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the YAML Unmarshaler interface.

type Parameter

type Parameter struct {
	// Type of the parameter.
	Type ParamType `json:"type"`
	// The actual value of the parameter.
	Value interface{} `json:"value"`
}

Parameter represents a smart contract parameter.

func NewParameter

func NewParameter(t ParamType) Parameter

NewParameter returns a Parameter with proper initialized Value of the given ParamType.

func NewParameterFromString

func NewParameterFromString(in string) (*Parameter, error)

NewParameterFromString returns a new Parameter initialized from the given string in neo-go-specific format. It is intended to be used in user-facing interfaces and has some heuristics in it to simplify parameter passing. Exact syntax is documented in the cli documentation.

func ParameterFromStackItem

func ParameterFromStackItem(i stackitem.Item, seen map[stackitem.Item]bool) Parameter

ParameterFromStackItem converts stackitem.Item to Parameter.

func (*Parameter) DecodeBinary

func (p *Parameter) DecodeBinary(r *io.BinReader)

DecodeBinary implements io.Serializable interface.

func (*Parameter) EncodeBinary

func (p *Parameter) EncodeBinary(w *io.BinWriter)

EncodeBinary implements io.Serializable interface.

func (Parameter) MarshalJSON

func (p Parameter) MarshalJSON() ([]byte, error)

MarshalJSON implements Marshaler interface.

func (Parameter) TryParse

func (p Parameter) TryParse(dest interface{}) error

TryParse converts one Parameter into something more appropriate.

func (*Parameter) UnmarshalJSON

func (p *Parameter) UnmarshalJSON(data []byte) (err error)

UnmarshalJSON implements Unmarshaler interface.

type ParameterPair

type ParameterPair struct {
	Key   Parameter `json:"key"`
	Value Parameter `json:"value"`
}

ParameterPair represents key-value pair, a slice of which is stored in MapType Parameter.

func (*ParameterPair) DecodeBinary

func (p *ParameterPair) DecodeBinary(r *io.BinReader)

DecodeBinary implements io.Serializable interface.

func (*ParameterPair) EncodeBinary

func (p *ParameterPair) EncodeBinary(w *io.BinWriter)

EncodeBinary implements io.Serializable interface.

type Params

type Params []Parameter

Params is an array of Parameter (TODO: drop it?).

func (Params) TryParseArray

func (p Params) TryParseArray(vals ...interface{}) error

TryParseArray converts an array of Parameter into an array of more appropriate things.