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dynamic_fee_tx.go
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dynamic_fee_tx.go
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package types
import (
"math/big"
sdkmath "cosmossdk.io/math"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/evmos/ethermint/types"
)
func newDynamicFeeTx(tx *ethtypes.Transaction) (*DynamicFeeTx, error) {
txData := &DynamicFeeTx{
Nonce: tx.Nonce(),
Data: tx.Data(),
GasLimit: tx.Gas(),
}
v, r, s := tx.RawSignatureValues()
if to := tx.To(); to != nil {
txData.To = to.Hex()
}
if tx.Value() != nil {
amountInt, err := types.SafeNewIntFromBigInt(tx.Value())
if err != nil {
return nil, err
}
txData.Amount = &amountInt
}
if tx.GasFeeCap() != nil {
gasFeeCapInt, err := types.SafeNewIntFromBigInt(tx.GasFeeCap())
if err != nil {
return nil, err
}
txData.GasFeeCap = &gasFeeCapInt
}
if tx.GasTipCap() != nil {
gasTipCapInt, err := types.SafeNewIntFromBigInt(tx.GasTipCap())
if err != nil {
return nil, err
}
txData.GasTipCap = &gasTipCapInt
}
if tx.AccessList() != nil {
al := tx.AccessList()
txData.Accesses = NewAccessList(&al)
}
txData.SetSignatureValues(tx.ChainId(), v, r, s)
return txData, nil
}
// TxType returns the tx type
func (tx *DynamicFeeTx) TxType() uint8 {
return ethtypes.DynamicFeeTxType
}
// Copy returns an instance with the same field values
func (tx *DynamicFeeTx) Copy() TxData {
return &DynamicFeeTx{
ChainID: tx.ChainID,
Nonce: tx.Nonce,
GasTipCap: tx.GasTipCap,
GasFeeCap: tx.GasFeeCap,
GasLimit: tx.GasLimit,
To: tx.To,
Amount: tx.Amount,
Data: common.CopyBytes(tx.Data),
Accesses: tx.Accesses,
V: common.CopyBytes(tx.V),
R: common.CopyBytes(tx.R),
S: common.CopyBytes(tx.S),
}
}
// GetChainID returns the chain id field from the DynamicFeeTx
func (tx *DynamicFeeTx) GetChainID() *big.Int {
if tx.ChainID == nil {
return nil
}
return tx.ChainID.BigInt()
}
// GetAccessList returns the AccessList field.
func (tx *DynamicFeeTx) GetAccessList() ethtypes.AccessList {
if tx.Accesses == nil {
return nil
}
return *tx.Accesses.ToEthAccessList()
}
// GetData returns the a copy of the input data bytes.
func (tx *DynamicFeeTx) GetData() []byte {
return common.CopyBytes(tx.Data)
}
// GetGas returns the gas limit.
func (tx *DynamicFeeTx) GetGas() uint64 {
return tx.GasLimit
}
// GetGasPrice returns the gas fee cap field.
func (tx *DynamicFeeTx) GetGasPrice() *big.Int {
return tx.GetGasFeeCap()
}
// GetGasTipCap returns the gas tip cap field.
func (tx *DynamicFeeTx) GetGasTipCap() *big.Int {
if tx.GasTipCap == nil {
return nil
}
return tx.GasTipCap.BigInt()
}
// GetGasFeeCap returns the gas fee cap field.
func (tx *DynamicFeeTx) GetGasFeeCap() *big.Int {
if tx.GasFeeCap == nil {
return nil
}
return tx.GasFeeCap.BigInt()
}
// GetValue returns the tx amount.
func (tx *DynamicFeeTx) GetValue() *big.Int {
if tx.Amount == nil {
return nil
}
return tx.Amount.BigInt()
}
// GetNonce returns the account sequence for the transaction.
func (tx *DynamicFeeTx) GetNonce() uint64 { return tx.Nonce }
// GetTo returns the pointer to the recipient address.
func (tx *DynamicFeeTx) GetTo() *common.Address {
if tx.To == "" {
return nil
}
to := common.HexToAddress(tx.To)
return &to
}
// AsEthereumData returns an DynamicFeeTx transaction tx from the proto-formatted
// TxData defined on the Cosmos EVM.
func (tx *DynamicFeeTx) AsEthereumData() ethtypes.TxData {
v, r, s := tx.GetRawSignatureValues()
return ðtypes.DynamicFeeTx{
ChainID: tx.GetChainID(),
Nonce: tx.GetNonce(),
GasTipCap: tx.GetGasTipCap(),
GasFeeCap: tx.GetGasFeeCap(),
Gas: tx.GetGas(),
To: tx.GetTo(),
Value: tx.GetValue(),
Data: tx.GetData(),
AccessList: tx.GetAccessList(),
V: v,
R: r,
S: s,
}
}
// GetRawSignatureValues returns the V, R, S signature values of the transaction.
// The return values should not be modified by the caller.
func (tx *DynamicFeeTx) GetRawSignatureValues() (v, r, s *big.Int) {
return rawSignatureValues(tx.V, tx.R, tx.S)
}
// SetSignatureValues sets the signature values to the transaction.
func (tx *DynamicFeeTx) SetSignatureValues(chainID, v, r, s *big.Int) {
if v != nil {
tx.V = v.Bytes()
}
if r != nil {
tx.R = r.Bytes()
}
if s != nil {
tx.S = s.Bytes()
}
if chainID != nil {
chainIDInt := sdkmath.NewIntFromBigInt(chainID)
tx.ChainID = &chainIDInt
}
}
// Validate performs a stateless validation of the tx fields.
func (tx DynamicFeeTx) Validate() error {
if tx.GasTipCap == nil {
return sdkerrors.Wrap(ErrInvalidGasCap, "gas tip cap cannot nil")
}
if tx.GasFeeCap == nil {
return sdkerrors.Wrap(ErrInvalidGasCap, "gas fee cap cannot nil")
}
if tx.GasTipCap.IsNegative() {
return sdkerrors.Wrapf(ErrInvalidGasCap, "gas tip cap cannot be negative %s", tx.GasTipCap)
}
if tx.GasFeeCap.IsNegative() {
return sdkerrors.Wrapf(ErrInvalidGasCap, "gas fee cap cannot be negative %s", tx.GasFeeCap)
}
if !types.IsValidInt256(tx.GetGasTipCap()) {
return sdkerrors.Wrap(ErrInvalidGasCap, "out of bound")
}
if !types.IsValidInt256(tx.GetGasFeeCap()) {
return sdkerrors.Wrap(ErrInvalidGasCap, "out of bound")
}
if tx.GasFeeCap.LT(*tx.GasTipCap) {
return sdkerrors.Wrapf(
ErrInvalidGasCap, "max priority fee per gas higher than max fee per gas (%s > %s)",
tx.GasTipCap, tx.GasFeeCap,
)
}
if !types.IsValidInt256(tx.Fee()) {
return sdkerrors.Wrap(ErrInvalidGasFee, "out of bound")
}
amount := tx.GetValue()
// Amount can be 0
if amount != nil && amount.Sign() == -1 {
return sdkerrors.Wrapf(ErrInvalidAmount, "amount cannot be negative %s", amount)
}
if !types.IsValidInt256(amount) {
return sdkerrors.Wrap(ErrInvalidAmount, "out of bound")
}
if tx.To != "" {
if err := types.ValidateAddress(tx.To); err != nil {
return sdkerrors.Wrap(err, "invalid to address")
}
}
if tx.GetChainID() == nil {
return sdkerrors.Wrap(
sdkerrors.ErrInvalidChainID,
"chain ID must be present on AccessList txs",
)
}
return nil
}
// Fee returns gasprice * gaslimit.
func (tx DynamicFeeTx) Fee() *big.Int {
return fee(tx.GetGasFeeCap(), tx.GasLimit)
}
// Cost returns amount + gasprice * gaslimit.
func (tx DynamicFeeTx) Cost() *big.Int {
return cost(tx.Fee(), tx.GetValue())
}
// EffectiveGasPrice returns the effective gas price
func (tx *DynamicFeeTx) EffectiveGasPrice(baseFee *big.Int) *big.Int {
return EffectiveGasPrice(baseFee, tx.GasFeeCap.BigInt(), tx.GasTipCap.BigInt())
}
// EffectiveFee returns effective_gasprice * gaslimit.
func (tx DynamicFeeTx) EffectiveFee(baseFee *big.Int) *big.Int {
return fee(tx.EffectiveGasPrice(baseFee), tx.GasLimit)
}
// EffectiveCost returns amount + effective_gasprice * gaslimit.
func (tx DynamicFeeTx) EffectiveCost(baseFee *big.Int) *big.Int {
return cost(tx.EffectiveFee(baseFee), tx.GetValue())
}