contract

Documentation

Overview

Package contract provides functions to work with contracts.

Index

• Constants
• func Call(scriptHash interop.Hash160, method string, f CallFlag, args ...interface{}) interface{}
• func CreateMultisigAccount(m int, pubs []interop.PublicKey) []byte
• func CreateStandardAccount(pub interop.PublicKey) []byte
• type CallFlag
  • func GetCallFlags() CallFlag

Constants

const (
	ReadStates CallFlag = 1 << iota
	WriteStates
	AllowCall
	AllowNotify
	States            = ReadStates | WriteStates
	ReadOnly          = ReadStates | AllowCall
	All               = States | AllowCall | AllowNotify
	NoneFlag CallFlag = 0
)

Using `smartcontract` package from compiled contract requires moderate compiler refactoring, thus all flags are mirrored here.

Functions

func Call

func Call(scriptHash interop.Hash160, method string, f CallFlag, args ...interface{}) interface{}

Call executes previously deployed blockchain contract with specified hash (20 bytes in BE form) using provided arguments and call flags. It returns whatever this contract returns. This function uses `System.Contract.Call` syscall.

func CreateMultisigAccount

func CreateMultisigAccount(m int, pubs []interop.PublicKey) []byte

CreateMultisigAccount calculates script hash of an m out of n multisignature script using given m and a set of public keys bytes. This function uses `System.Contract.CreateMultisigAccount` syscall.

func CreateStandardAccount

func CreateStandardAccount(pub interop.PublicKey) []byte

CreateStandardAccount calculates script hash of a given public key. This function uses `System.Contract.CreateStandardAccount` syscall.

Types

type CallFlag

type CallFlag byte

CallFlag specifies valid call flags.

func GetCallFlags

func GetCallFlags() CallFlag

GetCallFlags returns calling flags which execution context was created with. This function uses `System.Contract.GetCallFlags` syscall.