neo-go/pkg/core/transaction/invocation.go
Anna Shaleva 65503aa9b4 core: add nonce field to transaction
1. Closes #840: added Nonce field to transaction.Transaction and
removed Nonce field from transaction.MinerTx

2. Added following methods to different tx types:
  - NewMinerTx()
  - NewMinerTxWithNonce(...)
  - NewEnrollmentTx(...)
  - NewIssueTx()
  - NewPublishTx(...)
  - NewRegisterTx(...)
  - NewStateTx(...)
in order to avoid code duplication when new transaction is created.

3. Commented out test cases where binary transaction/block are used.
These test cases marked with `TODO NEO3.0: Update binary` and need to be
updated.

4. Updated other tests

5. Added constant Nonce to GoveringTockenTx, UtilityTokenTx and genesis
block to avoid data variability. Also marked with TODO.
2020-04-14 16:19:41 +03:00

64 lines
1.4 KiB
Go

package transaction
import (
"errors"
"math/rand"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/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,
Nonce: rand.Uint32(),
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 br.Err == nil && len(tx.Script) == 0 {
br.Err = errors.New("no script")
return
}
if tx.Version >= 1 {
tx.Gas.DecodeBinary(br)
if br.Err == nil && tx.Gas.LessThan(0) {
br.Err = errors.New("negative gas")
return
}
} 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 {
tx.Gas.EncodeBinary(bw)
}
}