neoneo-go/pkg/core/transaction/output.go
Roman Khimov 5bf00db2c9 io: move BinReader/BinWriter there, redo Serializable with it
The logic here is that we'll have all binary encoding/decoding done via our io
package, which simplifies error handling. This functionality doesn't belong to
util, so it's moved.

This also expands BufBinWriter with Reset() method to fit the needs of core
package.
2019-09-16 23:39:51 +03:00

65 lines
1.6 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 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(br *io.BinReader) error {
br.ReadLE(&out.AssetID)
br.ReadLE(&out.Amount)
br.ReadLE(&out.ScriptHash)
return br.Err
}
// EncodeBinary implements the Payload interface.
func (out *Output) EncodeBinary(bw *io.BinWriter) error {
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,
})
}