neo-go/pkg/core/spent_coin_state.go

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package core
import (
"github.com/CityOfZion/neo-go/pkg/io"
"github.com/CityOfZion/neo-go/pkg/util"
)
// SpentCoinState represents the state of a spent coin.
type SpentCoinState struct {
txHash util.Uint256
txHeight uint32
// A mapping between the index of the prevIndex and block height.
items map[uint16]uint32
}
// NewSpentCoinState returns a new SpentCoinState object.
func NewSpentCoinState(hash util.Uint256, height uint32) *SpentCoinState {
return &SpentCoinState{
txHash: hash,
txHeight: height,
items: make(map[uint16]uint32),
}
}
// DecodeBinary implements Serializable interface.
func (s *SpentCoinState) DecodeBinary(br *io.BinReader) {
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br.ReadBytes(s.txHash[:])
s.txHeight = br.ReadU32LE()
s.items = make(map[uint16]uint32)
lenItems := br.ReadVarUint()
for i := 0; i < int(lenItems); i++ {
var (
key uint16
value uint32
)
key = br.ReadU16LE()
value = br.ReadU32LE()
s.items[key] = value
}
}
// EncodeBinary implements Serializable interface.
func (s *SpentCoinState) EncodeBinary(bw *io.BinWriter) {
bw.WriteBytes(s.txHash[:])
bw.WriteU32LE(s.txHeight)
bw.WriteVarUint(uint64(len(s.items)))
for k, v := range s.items {
bw.WriteU16LE(k)
bw.WriteU32LE(v)
}
}