attribute

Documentation

Overview

Package attribute provides getters for transaction attributes.

Index

• func GetData(attr Attribute) []byte
• func GetUsage(attr Attribute) byte
• type Attribute

Functions

func GetData

func GetData(attr Attribute) []byte

GetData returns the data of the given attribute, exact interpretation of this data depends on attribute's Usage type. It uses `Neo.Attribute.GetData` syscall internally.

func GetUsage

func GetUsage(attr Attribute) byte

GetUsage returns the Usage field of the given attribute. It is an enumeration with the following possible values:

ContractHash   = 0x00
ECDH02         = 0x02
ECDH03         = 0x03
Script         = 0x20
Vote           = 0x30
CertURL        = 0x80
DescriptionURL = 0x81
Description    = 0x90

Hash1  = 0xa1
Hash2  = 0xa2
Hash3  = 0xa3
Hash4  = 0xa4
Hash5  = 0xa5
Hash6  = 0xa6
Hash7  = 0xa7
Hash8  = 0xa8
Hash9  = 0xa9
Hash10 = 0xaa
Hash11 = 0xab
Hash12 = 0xac
Hash13 = 0xad
Hash14 = 0xae
Hash15 = 0xaf

Remark   = 0xf0
Remark1  = 0xf1
Remark2  = 0xf2
Remark3  = 0xf3
Remark4  = 0xf4
Remark5  = 0xf5
Remark6  = 0xf6
Remark7  = 0xf7
Remark8  = 0xf8
Remark9  = 0xf9
Remark10 = 0xfa
Remark11 = 0xfb
Remark12 = 0xfc
Remark13 = 0xfd
Remark14 = 0xfe
Remark15 = 0xff

This function uses `Neo.Attribute.GetUsage` syscall internally.

Types

type Attribute

type Attribute struct{}

Attribute represents transaction attribute in Neo, it's an opaque data structure that you can get data from only using functions from this package. It's similar in function to the TransactionAttribute class in the Neo .net framework. To use it you need to get is first using transaction.GetAttributes.