func (self *StateTransition) transitionState() (ret []byte, usedGas *big.Int, err error) {
if err = self.preCheck(); err != nil {
return
}
msg := self.msg
sender, _ := self.From() // err checked in preCheck
// Pay intrinsic gas
if err = self.UseGas(IntrinsicGas(self.data)); err != nil {
return nil, nil, InvalidTxError(err)
}
vmenv := self.env
var ref vm.ContextRef
if MessageCreatesContract(msg) {
ret, err, ref = vmenv.Create(sender, self.data, self.gas, self.gasPrice, self.value)
if err == nil {
dataGas := big.NewInt(int64(len(ret)))
dataGas.Mul(dataGas, params.CreateDataGas)
if err := self.UseGas(dataGas); err == nil {
ref.SetCode(ret)
} else {
ret = nil // does not affect consensus but useful for StateTests validations
glog.V(logger.Core).Infoln("Insufficient gas for creating code. Require", dataGas, "and have", self.gas)
}
}
glog.V(logger.Core).Infoln("VM create err:", err)
} else {
// Increment the nonce for the next transaction
self.state.SetNonce(sender.Address(), sender.Nonce()+1)
ret, err = vmenv.Call(sender, self.To().Address(), self.data, self.gas, self.gasPrice, self.value)
glog.V(logger.Core).Infoln("VM call err:", err)
}
if err != nil && IsValueTransferErr(err) {
return nil, nil, InvalidTxError(err)
}
// We aren't interested in errors here. Errors returned by the VM are non-consensus errors and therefor shouldn't bubble up
if err != nil {
err = nil
}
if vm.Debug {
vm.StdErrFormat(vmenv.StructLogs())
}
self.refundGas()
self.state.AddBalance(self.env.Coinbase(), new(big.Int).Mul(self.gasUsed(), self.gasPrice))
return ret, self.gasUsed(), err
}
