63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
package transaction
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import (
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"io"
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"github.com/CityOfZion/neo-go/pkg/util"
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)
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// InvocationTX represents a invocation transaction and is used to
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// deploy smart contract to the NEO blockchain.
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type InvocationTX struct {
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// Script output of the smart contract.
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Script []byte
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// Gas cost of the smart contract.
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Gas util.Fixed8
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Version uint8
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}
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// NewInvocationTX returns a new invocation transaction.
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func NewInvocationTX(script []byte) *Transaction {
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return &Transaction{
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Type: InvocationType,
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Version: 1,
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Data: &InvocationTX{
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Script: script,
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},
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Attributes: []*Attribute{},
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Inputs: []*Input{},
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Outputs: []*Output{},
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Scripts: []*Witness{},
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}
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}
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// DecodeBinary implements the Payload interface.
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func (tx *InvocationTX) DecodeBinary(r io.Reader) error {
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br := util.BinReader{R: r}
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tx.Script = br.ReadBytes()
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if (tx.Version >= 1) {
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br.ReadLE(&tx.Gas)
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} else {
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tx.Gas = util.Fixed8FromInt64(0)
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}
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return br.Err
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}
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// EncodeBinary implements the Payload interface.
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func (tx *InvocationTX) EncodeBinary(w io.Writer) error {
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bw := util.BinWriter{W: w}
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bw.WriteBytes(tx.Script)
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if (tx.Version >= 1) {
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bw.WriteLE(tx.Gas)
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}
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return bw.Err
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}
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func (tx *InvocationTX) Size() int {
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sz := util.GetVarSize(tx.Script)
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if (tx.Version >= 1) {
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sz += tx.Gas.Size()
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}
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return sz
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}
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