package transaction import ( "github.com/CityOfZion/neo-go/pkg/io" "github.com/CityOfZion/neo-go/pkg/util" ) // InvocationTX represents a invocation transaction and is used to // deploy smart contract to the NEO blockchain. type InvocationTX struct { // Script output of the smart contract. Script []byte // Gas cost of the smart contract. Gas util.Fixed8 Version uint8 } // NewInvocationTX returns a new invocation transaction. func NewInvocationTX(script []byte, gas util.Fixed8) *Transaction { return &Transaction{ Type: InvocationType, Version: 1, Data: &InvocationTX{ Script: script, Gas: gas, Version: 1, }, Attributes: []*Attribute{}, Inputs: []*Input{}, Outputs: []*Output{}, Scripts: []*Witness{}, } } // DecodeBinary implements Serializable interface. func (tx *InvocationTX) DecodeBinary(br *io.BinReader) { tx.Script = br.ReadVarBytes() if tx.Version >= 1 { br.ReadLE(&tx.Gas) } else { tx.Gas = util.Fixed8FromInt64(0) } } // EncodeBinary implements Serializable interface. func (tx *InvocationTX) EncodeBinary(bw *io.BinWriter) { bw.WriteVarBytes(tx.Script) if tx.Version >= 1 { bw.WriteLE(tx.Gas) } }