neoneo-go/pkg/core/transaction/output.go
Roman Khimov 361724a33e pkg/core: use util.binaryReader/Writer
Simplify error handling.
2019-08-28 19:45:17 +03:00

67 lines
1.6 KiB
Go

package transaction
import (
"encoding/json"
"io"
"github.com/CityOfZion/neo-go/pkg/crypto"
"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 diplaying 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 the Payload interface.
func (out *Output) DecodeBinary(r io.Reader) error {
br := util.BinReader{R: r}
br.ReadLE(&out.AssetID)
br.ReadLE(&out.Amount)
br.ReadLE(&out.ScriptHash)
return br.Err
}
// EncodeBinary implements the Payload interface.
func (out *Output) EncodeBinary(w io.Writer) error {
bw := util.BinWriter{W: w}
bw.WriteLE(out.AssetID)
bw.WriteLE(out.Amount)
bw.WriteLE(out.ScriptHash)
return bw.Err
}
// Size returns the size in bytes of the Output
func (out *Output) Size() int {
return out.AssetID.Size() + out.Amount.Size() + out.ScriptHash.Size()
}
// 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,
})
}