/
deposits.go
51 lines (46 loc) · 1.54 KB
/
deposits.go
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package derive
import (
"fmt"
"github.com/hashicorp/go-multierror"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/types"
)
// UserDeposits transforms the L2 block-height and L1 receipts into the transaction inputs for a full L2 block
func UserDeposits(receipts []*types.Receipt, depositContractAddr common.Address) ([]*types.DepositTx, error) {
var out []*types.DepositTx
var result error
for i, rec := range receipts {
if rec.Status != types.ReceiptStatusSuccessful {
continue
}
for j, log := range rec.Logs {
if log.Address == depositContractAddr && len(log.Topics) > 0 && log.Topics[0] == DepositEventABIHash {
dep, err := UnmarshalDepositLogEvent(log)
if err != nil {
result = multierror.Append(result, fmt.Errorf("malformatted L1 deposit log in receipt %d, log %d: %w", i, j, err))
} else {
out = append(out, dep)
}
}
}
}
return out, result
}
func DeriveDeposits(receipts []*types.Receipt, depositContractAddr common.Address) ([]hexutil.Bytes, error) {
var result error
userDeposits, err := UserDeposits(receipts, depositContractAddr)
if err != nil {
result = multierror.Append(result, err)
}
encodedTxs := make([]hexutil.Bytes, 0, len(userDeposits))
for i, tx := range userDeposits {
opaqueTx, err := types.NewTx(tx).MarshalBinary()
if err != nil {
result = multierror.Append(result, fmt.Errorf("failed to encode user tx %d", i))
} else {
encodedTxs = append(encodedTxs, opaqueTx)
}
}
return encodedTxs, result
}