private UserOperationSimulationResult SimulateValidation(
Transaction transaction,
UserOperation userOperation,
BlockHeader parent,
ITransactionProcessor transactionProcessor)
{
bool paymasterWhitelisted = _whitelistedPaymasters.Contains(userOperation.Paymaster);
UserOperationTxTracer txTracer = new(
transaction,
paymasterWhitelisted,
userOperation.InitCode != Bytes.Empty, userOperation.Sender,
userOperation.Paymaster,
_entryPointContractAddress,
_logger
);
transactionProcessor.Trace(transaction, parent, txTracer);
FailedOp?failedOp = _userOperationTxBuilder.DecodeEntryPointOutputError(txTracer.Output);
string?error = null;
if (!txTracer.Success)
{
if (failedOp is not null)
{
error = failedOp.ToString() !;
}
else
{
error = txTracer.Error;
}
return(UserOperationSimulationResult.Failed(error));
}
UserOperationAccessList userOperationAccessList = new(txTracer.AccessedStorage);
IDictionary <Address, Keccak> addressesToCodeHashes = new Dictionary <Address, Keccak>();
foreach (Address accessedAddress in txTracer.AccessedAddresses)
{
addressesToCodeHashes[accessedAddress] = _stateProvider.GetCodeHash(accessedAddress);
}
return(new UserOperationSimulationResult()
{
Success = true,
AccessList = userOperationAccessList,
AddressesToCodeHashes = addressesToCodeHashes,
Error = error
});
}
public void Trace(Transaction transaction, BlockHeader block, ITxTracer txTracer) => _transactionProcessor.Trace(transaction, block, txTracer);
