neo-go/pkg/core/transaction/output.go
Roman Khimov 54d888ba70 io: add type-specific read/write methods
This seriously improves the serialization/deserialization performance for
several reasons:
 * no time spent in `binary` reflection
 * no memory allocations being made on every read/write
 * uses fast ReadBytes everywhere it's appropriate

It also makes Fixed8 Serializable just for convenience.
2019-12-12 20:19:50 +03:00

58 lines
1.5 KiB
Go

package transaction
import (
"encoding/json"
"github.com/CityOfZion/neo-go/pkg/crypto"
"github.com/CityOfZion/neo-go/pkg/io"
"github.com/CityOfZion/neo-go/pkg/util"
)
// Output represents a Transaction output.
type Output struct {
// The NEO asset id used in the transaction.
AssetID util.Uint256
// Amount of AssetType send or received.
Amount util.Fixed8
// The address of the recipient.
ScriptHash util.Uint160
// The position of the Output in slice []Output. This is actually set in NewTransactionOutputRaw
// and used for displaying purposes.
Position int
}
// NewOutput returns a new transaction output.
func NewOutput(assetID util.Uint256, amount util.Fixed8, scriptHash util.Uint160) *Output {
return &Output{
AssetID: assetID,
Amount: amount,
ScriptHash: scriptHash,
}
}
// DecodeBinary implements Serializable interface.
func (out *Output) DecodeBinary(br *io.BinReader) {
br.ReadBytes(out.AssetID[:])
out.Amount.DecodeBinary(br)
br.ReadBytes(out.ScriptHash[:])
}
// EncodeBinary implements Serializable interface.
func (out *Output) EncodeBinary(bw *io.BinWriter) {
bw.WriteBytes(out.AssetID[:])
out.Amount.EncodeBinary(bw)
bw.WriteBytes(out.ScriptHash[:])
}
// MarshalJSON implements the Marshaler interface.
func (out *Output) MarshalJSON() ([]byte, error) {
return json.Marshal(map[string]interface{}{
"asset": out.AssetID,
"value": out.Amount,
"address": crypto.AddressFromUint160(out.ScriptHash),
"n": out.Position,
})
}