neoneo-go/pkg/core/state/native_state.go

98 lines
2.3 KiB
Go

package state
import (
"math/big"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
"github.com/nspcc-dev/neo-go/pkg/io"
)
// NEP5BalanceState represents balance state of a NEP5-token.
type NEP5BalanceState struct {
Balance big.Int
}
// NEOBalanceState represents balance state of a NEO-token.
type NEOBalanceState struct {
NEP5BalanceState
BalanceHeight uint32
Votes keys.PublicKeys
}
// NEP5BalanceStateFromBytes converts serialized NEP5BalanceState to structure.
func NEP5BalanceStateFromBytes(b []byte) (*NEP5BalanceState, error) {
balance := new(NEP5BalanceState)
if len(b) == 0 {
return balance, nil
}
r := io.NewBinReaderFromBuf(b)
balance.DecodeBinary(r)
if r.Err != nil {
return nil, r.Err
}
return balance, nil
}
// Bytes returns serialized NEP5BalanceState.
func (s *NEP5BalanceState) Bytes() []byte {
w := io.NewBufBinWriter()
s.EncodeBinary(w.BinWriter)
if w.Err != nil {
panic(w.Err)
}
return w.Bytes()
}
// EncodeBinary implements io.Serializable interface.
func (s *NEP5BalanceState) EncodeBinary(w *io.BinWriter) {
w.WriteVarBytes(bigint.ToBytes(&s.Balance))
}
// DecodeBinary implements io.Serializable interface.
func (s *NEP5BalanceState) DecodeBinary(r *io.BinReader) {
buf := r.ReadVarBytes()
if r.Err != nil {
return
}
s.Balance = *bigint.FromBytes(buf)
}
// NEOBalanceStateFromBytes converts serialized NEOBalanceState to structure.
func NEOBalanceStateFromBytes(b []byte) (*NEOBalanceState, error) {
balance := new(NEOBalanceState)
if len(b) == 0 {
return balance, nil
}
r := io.NewBinReaderFromBuf(b)
balance.DecodeBinary(r)
if r.Err != nil {
return nil, r.Err
}
return balance, nil
}
// Bytes returns serialized NEOBalanceState.
func (s *NEOBalanceState) Bytes() []byte {
w := io.NewBufBinWriter()
s.EncodeBinary(w.BinWriter)
if w.Err != nil {
panic(w.Err)
}
return w.Bytes()
}
// EncodeBinary implements io.Serializable interface.
func (s *NEOBalanceState) EncodeBinary(w *io.BinWriter) {
s.NEP5BalanceState.EncodeBinary(w)
w.WriteU32LE(s.BalanceHeight)
w.WriteArray(s.Votes)
}
// DecodeBinary implements io.Serializable interface.
func (s *NEOBalanceState) DecodeBinary(r *io.BinReader) {
s.NEP5BalanceState.DecodeBinary(r)
s.BalanceHeight = r.ReadU32LE()
r.ReadArray(&s.Votes)
}