Merge branch 'develop' into poc8

1 files changed, 17 insertions, 12 deletions

diff --git a/core/execution.go b/core/execution.go
index 43f4b58fb..5e0cbd37e 100644
--- a/core/execution.go
+++ b/core/execution.go
@@ -5,6 +5,7 @@ import (
 	"math/big"
 	"time"
 
+	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/vm"
 )
@@ -13,7 +14,6 @@ type Execution struct {
 	env               vm.Environment
 	address, input    []byte
 	Gas, price, value *big.Int
-	SkipTransfer      bool
 }
 
 func NewExecution(env vm.Environment, address, input []byte, gas, gasPrice, value *big.Int) *Execution {
@@ -33,24 +33,29 @@ func (self *Execution) Call(codeAddr []byte, caller vm.ContextRef) ([]byte, erro
 
 func (self *Execution) exec(code, contextAddr []byte, caller vm.ContextRef) (ret []byte, err error) {
 	env := self.env
-	evm := vm.New(env, vm.DebugVmTy)
-
+	evm := vm.NewVm(env)
 	if env.Depth() == vm.MaxCallDepth {
 		caller.ReturnGas(self.Gas, self.price)
 
 		return nil, vm.DepthError{}
 	}
 
+	vsnapshot := env.State().Copy()
+	if len(self.address) == 0 {
+		// Generate a new address
+		nonce := env.State().GetNonce(caller.Address())
+		self.address = crypto.CreateAddress(caller.Address(), nonce)
+		env.State().SetNonce(caller.Address(), nonce+1)
+	}
+
 	from, to := env.State().GetStateObject(caller.Address()), env.State().GetOrNewStateObject(self.address)
-	// Skipping transfer is used on testing for the initial call
-	if !self.SkipTransfer {
-		err = env.Transfer(from, to, self.value)
-		if err != nil {
-			caller.ReturnGas(self.Gas, self.price)
-
-			err = fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, from.Balance)
-			return
-		}
+	err = env.Transfer(from, to, self.value)
+	if err != nil {
+		env.State().Set(vsnapshot)
+
+		caller.ReturnGas(self.Gas, self.price)
+
+		return nil, fmt.Errorf("insufficient funds to transfer value. Req %v, has %v", self.value, from.Balance())
 	}
 
 	snapshot := env.State().Copy()