mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-23 13:38:35 +00:00
8b3080b972
go vet is not happy about them: pkg/io/binaryReader.go:92:21: method ReadByte() byte should have signature ReadByte() (byte, error) pkg/io/binaryWriter.go:75:21: method WriteByte(u8 byte) should have signature WriteByte(byte) error
78 lines
2.2 KiB
Go
78 lines
2.2 KiB
Go
package state
|
|
|
|
import (
|
|
"github.com/CityOfZion/neo-go/pkg/crypto/hash"
|
|
"github.com/CityOfZion/neo-go/pkg/io"
|
|
"github.com/CityOfZion/neo-go/pkg/smartcontract"
|
|
"github.com/CityOfZion/neo-go/pkg/util"
|
|
)
|
|
|
|
// Contract holds information about a smart contract in the NEO blockchain.
|
|
type Contract struct {
|
|
Script []byte
|
|
ParamList []smartcontract.ParamType
|
|
ReturnType smartcontract.ParamType
|
|
Properties smartcontract.PropertyState
|
|
Name string
|
|
CodeVersion string
|
|
Author string
|
|
Email string
|
|
Description string
|
|
|
|
scriptHash util.Uint160
|
|
}
|
|
|
|
// DecodeBinary implements Serializable interface.
|
|
func (cs *Contract) DecodeBinary(br *io.BinReader) {
|
|
cs.Script = br.ReadVarBytes()
|
|
br.ReadArray(&cs.ParamList)
|
|
cs.ReturnType = smartcontract.ParamType(br.ReadB())
|
|
cs.Properties = smartcontract.PropertyState(br.ReadB())
|
|
cs.Name = br.ReadString()
|
|
cs.CodeVersion = br.ReadString()
|
|
cs.Author = br.ReadString()
|
|
cs.Email = br.ReadString()
|
|
cs.Description = br.ReadString()
|
|
cs.createHash()
|
|
}
|
|
|
|
// EncodeBinary implements Serializable interface.
|
|
func (cs *Contract) EncodeBinary(bw *io.BinWriter) {
|
|
bw.WriteVarBytes(cs.Script)
|
|
bw.WriteArray(cs.ParamList)
|
|
bw.WriteB(byte(cs.ReturnType))
|
|
bw.WriteB(byte(cs.Properties))
|
|
bw.WriteString(cs.Name)
|
|
bw.WriteString(cs.CodeVersion)
|
|
bw.WriteString(cs.Author)
|
|
bw.WriteString(cs.Email)
|
|
bw.WriteString(cs.Description)
|
|
}
|
|
|
|
// ScriptHash returns a contract script hash.
|
|
func (cs *Contract) ScriptHash() util.Uint160 {
|
|
if cs.scriptHash.Equals(util.Uint160{}) {
|
|
cs.createHash()
|
|
}
|
|
return cs.scriptHash
|
|
}
|
|
|
|
// createHash creates contract script hash.
|
|
func (cs *Contract) createHash() {
|
|
cs.scriptHash = hash.Hash160(cs.Script)
|
|
}
|
|
|
|
// HasStorage checks whether the contract has storage property set.
|
|
func (cs *Contract) HasStorage() bool {
|
|
return (cs.Properties & smartcontract.HasStorage) != 0
|
|
}
|
|
|
|
// HasDynamicInvoke checks whether the contract has dynamic invoke property set.
|
|
func (cs *Contract) HasDynamicInvoke() bool {
|
|
return (cs.Properties & smartcontract.HasDynamicInvoke) != 0
|
|
}
|
|
|
|
// IsPayable checks whether the contract has payable property set.
|
|
func (cs *Contract) IsPayable() bool {
|
|
return (cs.Properties & smartcontract.IsPayable) != 0
|
|
}
|