neoneo-go/pkg/core/transaction/state_descriptor.go
Roman Khimov aacf58c9ab util: add 'constructors' for BinReader/BinWriter
And an additional BufBinWriter to ease buffer management.
2019-09-16 23:38:48 +03:00

51 lines
1.1 KiB
Go

package transaction
import (
"io"
"github.com/CityOfZion/neo-go/pkg/util"
)
// DescStateType represents the type of StateDescriptor.
type DescStateType uint8
// Valid DescStateType constants.
const (
Account DescStateType = 0x40
Validator DescStateType = 0x48
)
// StateDescriptor ..
type StateDescriptor struct {
Type DescStateType
Key []byte
Value []byte
Field string
}
// DecodeBinary implements the Payload interface.
func (s *StateDescriptor) DecodeBinary(r io.Reader) error {
br := util.NewBinReaderFromIO(r)
br.ReadLE(&s.Type)
s.Key = br.ReadBytes()
s.Value = br.ReadBytes()
s.Field = br.ReadString()
return br.Err
}
// EncodeBinary implements the Payload interface.
func (s *StateDescriptor) EncodeBinary(w io.Writer) error {
bw := util.NewBinWriterFromIO(w)
bw.WriteLE(s.Type)
bw.WriteBytes(s.Key)
bw.WriteBytes(s.Value)
bw.WriteString(s.Field)
return bw.Err
}
// Size returns serialized binary size for state descriptor.
func (s *StateDescriptor) Size() int {
return 1 + util.GetVarSize(s.Key) + util.GetVarSize(s.Value) + util.GetVarSize(s.Field)
}