Merge branch 'master' into 22_mail

.travis.yml

@@ -90,7 +90,7 @@ install:
   - go get golang.org/x/tools/cmd/cover
 script:
   - go run build/ci.go install
-  - go run build/ci.go test -coverage -vet
+  - go run build/ci.go test -coverage -vet -misspell
 
 notifications:
   webhooks:

VERSION

@@ -1 +1 @@
-1.5.6
+1.5.8

accounts/abi/abi.go

@@ -91,8 +91,30 @@ func toGoSlice(i int, t Argument, output []byte) (interface{}, error) {
 	// first we need to create a slice of the type
 	var refSlice reflect.Value
 	switch elem.T {
-	case IntTy, UintTy, BoolTy: // int, uint, bool can all be of type big int.
+	case IntTy, UintTy, BoolTy:
-		refSlice = reflect.ValueOf([]*big.Int(nil))
+		// create a new reference slice matching the element type
+		switch t.Type.Kind {
+		case reflect.Bool:
+			refSlice = reflect.ValueOf([]bool(nil))
+		case reflect.Uint8:
+			refSlice = reflect.ValueOf([]uint8(nil))
+		case reflect.Uint16:
+			refSlice = reflect.ValueOf([]uint16(nil))
+		case reflect.Uint32:
+			refSlice = reflect.ValueOf([]uint32(nil))
+		case reflect.Uint64:
+			refSlice = reflect.ValueOf([]uint64(nil))
+		case reflect.Int8:
+			refSlice = reflect.ValueOf([]int8(nil))
+		case reflect.Int16:
+			refSlice = reflect.ValueOf([]int16(nil))
+		case reflect.Int32:
+			refSlice = reflect.ValueOf([]int32(nil))
+		case reflect.Int64:
+			refSlice = reflect.ValueOf([]int64(nil))
+		default:
+			refSlice = reflect.ValueOf([]*big.Int(nil))
+		}
 	case AddressTy: // address must be of slice Address
 		refSlice = reflect.ValueOf([]common.Address(nil))
 	case HashTy: // hash must be of slice hash
@@ -147,7 +169,27 @@ func toGoSlice(i int, t Argument, output []byte) (interface{}, error) {
 		// set inter to the correct type (cast)
 		switch elem.T {
 		case IntTy, UintTy:
-			inter = common.BytesToBig(returnOutput)
+			bigNum := common.BytesToBig(returnOutput)
+			switch t.Type.Kind {
+			case reflect.Uint8:
+				inter = uint8(bigNum.Uint64())
+			case reflect.Uint16:
+				inter = uint16(bigNum.Uint64())
+			case reflect.Uint32:
+				inter = uint32(bigNum.Uint64())
+			case reflect.Uint64:
+				inter = bigNum.Uint64()
+			case reflect.Int8:
+				inter = int8(bigNum.Int64())
+			case reflect.Int16:
+				inter = int16(bigNum.Int64())
+			case reflect.Int32:
+				inter = int32(bigNum.Int64())
+			case reflect.Int64:
+				inter = bigNum.Int64()
+			default:
+				inter = common.BytesToBig(returnOutput)
+			}
 		case BoolTy:
 			inter = common.BytesToBig(returnOutput).Uint64() > 0
 		case AddressTy:
@@ -169,7 +211,7 @@ func toGoSlice(i int, t Argument, output []byte) (interface{}, error) {
 // argument in T.
 func toGoType(i int, t Argument, output []byte) (interface{}, error) {
 	// we need to treat slices differently
-	if (t.Type.IsSlice || t.Type.IsArray) && t.Type.T != BytesTy && t.Type.T != StringTy && t.Type.T != FixedBytesTy {
+	if (t.Type.IsSlice || t.Type.IsArray) && t.Type.T != BytesTy && t.Type.T != StringTy && t.Type.T != FixedBytesTy && t.Type.T != FunctionTy {
 		return toGoSlice(i, t, output)
 	}
 
@@ -233,7 +275,7 @@ func toGoType(i int, t Argument, output []byte) (interface{}, error) {
 		return common.BytesToAddress(returnOutput), nil
 	case HashTy:
 		return common.BytesToHash(returnOutput), nil
-	case BytesTy, FixedBytesTy:
+	case BytesTy, FixedBytesTy, FunctionTy:
 		return returnOutput, nil
 	case StringTy:
 		return string(returnOutput), nil

accounts/abi/abi_test.go

@@ -67,10 +67,10 @@ func TestTypeCheck(t *testing.T) {
 		{"uint16[3]", [4]uint16{1, 2, 3}, "abi: cannot use [4]uint16 as type [3]uint16 as argument"},
 		{"uint16[3]", []uint16{1, 2, 3}, ""},
 		{"uint16[3]", []uint16{1, 2, 3, 4}, "abi: cannot use [4]uint16 as type [3]uint16 as argument"},
-		{"address[]", []common.Address{common.Address{1}}, ""},
+		{"address[]", []common.Address{{1}}, ""},
-		{"address[1]", []common.Address{common.Address{1}}, ""},
+		{"address[1]", []common.Address{{1}}, ""},
-		{"address[1]", [1]common.Address{common.Address{1}}, ""},
+		{"address[1]", [1]common.Address{{1}}, ""},
-		{"address[2]", [1]common.Address{common.Address{1}}, "abi: cannot use [1]array as type [2]array as argument"},
+		{"address[2]", [1]common.Address{{1}}, "abi: cannot use [1]array as type [2]array as argument"},
 		{"bytes32", [32]byte{}, ""},
 		{"bytes32", [33]byte{}, "abi: cannot use [33]uint8 as type [32]uint8 as argument"},
 		{"bytes32", common.Hash{1}, ""},
@@ -80,7 +80,8 @@ func TestTypeCheck(t *testing.T) {
 		{"bytes", [2]byte{0, 1}, ""},
 		{"bytes", common.Hash{1}, ""},
 		{"string", "hello world", ""},
-		{"bytes32[]", [][32]byte{[32]byte{}}, ""},
+		{"bytes32[]", [][32]byte{{}}, ""},
+		{"function", [24]byte{}, ""},
 	} {
 		typ, err := NewType(test.typ)
 		if err != nil {
@@ -197,6 +198,13 @@ func TestSimpleMethodUnpack(t *testing.T) {
 			"interface",
 			"",
 		},
+		{
+			`[ { "type": "function" } ]`,
+			pad([]byte{1}, 32, false),
+			[24]byte{1},
+			"function",
+			"",
+		},
 	} {
 		abiDefinition := fmt.Sprintf(`[{ "name" : "method", "outputs": %s}]`, test.def)
 		abi, err := JSON(strings.NewReader(abiDefinition))
@@ -255,6 +263,10 @@ func TestSimpleMethodUnpack(t *testing.T) {
 			var v common.Hash
 			err = abi.Unpack(&v, "method", test.marshalledOutput)
 			outvar = v
+		case "function":
+			var v [24]byte
+			err = abi.Unpack(&v, "method", test.marshalledOutput)
+			outvar = v
 		case "interface":
 			err = abi.Unpack(&outvar, "method", test.marshalledOutput)
 		default:
@@ -320,6 +332,30 @@ func TestUnpackSetInterfaceSlice(t *testing.T) {
 	}
 }
 
+func TestUnpackSetInterfaceArrayOutput(t *testing.T) {
+	var (
+		var1 = new([1]uint32)
+		var2 = new([1]uint32)
+	)
+	out := []interface{}{var1, var2}
+	abi, err := JSON(strings.NewReader(`[{"type":"function", "name":"ints", "outputs":[{"type":"uint32[1]"}, {"type":"uint32[1]"}]}]`))
+	if err != nil {
+		t.Fatal(err)
+	}
+	marshalledReturn := append(pad([]byte{1}, 32, true), pad([]byte{2}, 32, true)...)
+	err = abi.Unpack(&out, "ints", marshalledReturn)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if *var1 != [1]uint32{1} {
+		t.Error("expected var1 to be [1], got", *var1)
+	}
+	if *var2 != [1]uint32{2} {
+		t.Error("expected var2 to be [2], got", *var2)
+	}
+}
+
 func TestPack(t *testing.T) {
 	for i, test := range []struct {
 		typ string
@@ -331,8 +367,9 @@ func TestPack(t *testing.T) {
 		{"uint16[]", []uint16{1, 2}, formatSliceOutput([]byte{1}, []byte{2})},
 		{"bytes20", [20]byte{1}, pad([]byte{1}, 32, false)},
 		{"uint256[]", []*big.Int{big.NewInt(1), big.NewInt(2)}, formatSliceOutput([]byte{1}, []byte{2})},
-		{"address[]", []common.Address{common.Address{1}, common.Address{2}}, formatSliceOutput(pad([]byte{1}, 20, false), pad([]byte{2}, 20, false))},
+		{"address[]", []common.Address{{1}, {2}}, formatSliceOutput(pad([]byte{1}, 20, false), pad([]byte{2}, 20, false))},
-		{"bytes32[]", []common.Hash{common.Hash{1}, common.Hash{2}}, formatSliceOutput(pad([]byte{1}, 32, false), pad([]byte{2}, 32, false))},
+		{"bytes32[]", []common.Hash{{1}, {2}}, formatSliceOutput(pad([]byte{1}, 32, false), pad([]byte{2}, 32, false))},
+		{"function", [24]byte{1}, pad([]byte{1}, 32, false)},
 	} {
 		typ, err := NewType(test.typ)
 		if err != nil {
@@ -445,12 +482,12 @@ func TestReader(t *testing.T) {
 	Uint256, _ := NewType("uint256")
 	exp := ABI{
 		Methods: map[string]Method{
-			"balance": Method{
+			"balance": {
 				"balance", true, nil, nil,
 			},
-			"send": Method{
+			"send": {
 				"send", false, []Argument{
-					Argument{"amount", Uint256, false},
+					{"amount", Uint256, false},
 				}, nil,
 			},
 		},
@@ -549,7 +586,7 @@ func TestTestSlice(t *testing.T) {
 
 func TestMethodSignature(t *testing.T) {
 	String, _ := NewType("string")
-	m := Method{"foo", false, []Argument{Argument{"bar", String, false}, Argument{"baz", String, false}}, nil}
+	m := Method{"foo", false, []Argument{{"bar", String, false}, {"baz", String, false}}, nil}
 	exp := "foo(string,string)"
 	if m.Sig() != exp {
 		t.Error("signature mismatch", exp, "!=", m.Sig())
@@ -561,7 +598,7 @@ func TestMethodSignature(t *testing.T) {
 	}
 
 	uintt, _ := NewType("uint")
-	m = Method{"foo", false, []Argument{Argument{"bar", uintt, false}}, nil}
+	m = Method{"foo", false, []Argument{{"bar", uintt, false}}, nil}
 	exp = "foo(uint256)"
 	if m.Sig() != exp {
 		t.Error("signature mismatch", exp, "!=", m.Sig())
@@ -766,8 +803,8 @@ func TestBareEvents(t *testing.T) {
 		"balance": {false, nil},
 		"anon":    {true, nil},
 		"args": {false, []Argument{
-			Argument{Name: "arg0", Type: arg0, Indexed: false},
+			{Name: "arg0", Type: arg0, Indexed: false},
-			Argument{Name: "arg1", Type: arg1, Indexed: true},
+			{Name: "arg1", Type: arg1, Indexed: true},
 		}},
 	}
 

accounts/abi/argument.go

@@ -31,8 +31,8 @@ type Argument struct {
 
 func (a *Argument) UnmarshalJSON(data []byte) error {
 	var extarg struct {
-		Name string
+		Name    string
-		Type string
+		Type    string
 		Indexed bool
 	}
 	err := json.Unmarshal(data, &extarg)

accounts/abi/bind/auth.go

@@ -52,7 +52,7 @@ func NewKeyedTransactor(key *ecdsa.PrivateKey) *TransactOpts {
 			if address != keyAddr {
 				return nil, errors.New("not authorized to sign this account")
 			}
-			signature, err := crypto.SignEthereum(signer.Hash(tx).Bytes(), key)
+			signature, err := crypto.Sign(signer.Hash(tx).Bytes(), key)
 			if err != nil {
 				return nil, err
 			}

accounts/abi/bind/backends/simulated.go

@@ -229,7 +229,7 @@ func (b *SimulatedBackend) callContract(ctx context.Context, call ethereum.CallM
 	evmContext := core.NewEVMContext(msg, block.Header(), b.blockchain)
 	// Create a new environment which holds all relevant information
 	// about the transaction and calling mechanisms.
-	vmenv := vm.NewEnvironment(evmContext, statedb, chainConfig, vm.Config{})
+	vmenv := vm.NewEVM(evmContext, statedb, chainConfig, vm.Config{})
 	gaspool := new(core.GasPool).AddGas(common.MaxBig)
 	ret, gasUsed, _, err := core.NewStateTransition(vmenv, msg, gaspool).TransitionDb()
 	return ret, gasUsed, err

accounts/abi/bind/base.go

@@ -170,7 +170,7 @@ func (c *BoundContract) transact(opts *TransactOpts, contract *common.Address, i
 	if value == nil {
 		value = new(big.Int)
 	}
-	nonce := uint64(0)
+	var nonce uint64
 	if opts.Nonce == nil {
 		nonce, err = c.transactor.PendingNonceAt(ensureContext(opts.Context), opts.From)
 		if err != nil {

accounts/abi/bind/bind.go

@@ -147,21 +147,21 @@ func bindTypeGo(kind abi.Type) string {
 
 	switch {
 	case strings.HasPrefix(stringKind, "address"):
-		parts := regexp.MustCompile("address(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`address(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 2 {
 			return stringKind
 		}
 		return fmt.Sprintf("%scommon.Address", parts[1])
 
 	case strings.HasPrefix(stringKind, "bytes"):
-		parts := regexp.MustCompile("bytes([0-9]*)(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`bytes([0-9]*)(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 3 {
 			return stringKind
 		}
 		return fmt.Sprintf("%s[%s]byte", parts[2], parts[1])
 
 	case strings.HasPrefix(stringKind, "int") || strings.HasPrefix(stringKind, "uint"):
-		parts := regexp.MustCompile("(u)?int([0-9]*)(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`(u)?int([0-9]*)(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 4 {
 			return stringKind
 		}
@@ -172,7 +172,7 @@ func bindTypeGo(kind abi.Type) string {
 		return fmt.Sprintf("%s*big.Int", parts[3])
 
 	case strings.HasPrefix(stringKind, "bool") || strings.HasPrefix(stringKind, "string"):
-		parts := regexp.MustCompile("([a-z]+)(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`([a-z]+)(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 3 {
 			return stringKind
 		}
@@ -191,7 +191,7 @@ func bindTypeJava(kind abi.Type) string {
 
 	switch {
 	case strings.HasPrefix(stringKind, "address"):
-		parts := regexp.MustCompile("address(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`address(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 2 {
 			return stringKind
 		}
@@ -201,7 +201,7 @@ func bindTypeJava(kind abi.Type) string {
 		return fmt.Sprintf("Addresses")
 
 	case strings.HasPrefix(stringKind, "bytes"):
-		parts := regexp.MustCompile("bytes([0-9]*)(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`bytes([0-9]*)(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 3 {
 			return stringKind
 		}
@@ -211,7 +211,7 @@ func bindTypeJava(kind abi.Type) string {
 		return "byte[]"
 
 	case strings.HasPrefix(stringKind, "int") || strings.HasPrefix(stringKind, "uint"):
-		parts := regexp.MustCompile("(u)?int([0-9]*)(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`(u)?int([0-9]*)(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 4 {
 			return stringKind
 		}
@@ -230,7 +230,7 @@ func bindTypeJava(kind abi.Type) string {
 		return fmt.Sprintf("BigInts")
 
 	case strings.HasPrefix(stringKind, "bool"):
-		parts := regexp.MustCompile("bool(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`bool(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 2 {
 			return stringKind
 		}
@@ -240,7 +240,7 @@ func bindTypeJava(kind abi.Type) string {
 		return fmt.Sprintf("bool[]")
 
 	case strings.HasPrefix(stringKind, "string"):
-		parts := regexp.MustCompile("string(\\[[0-9]*\\])?").FindStringSubmatch(stringKind)
+		parts := regexp.MustCompile(`string(\[[0-9]*\])?`).FindStringSubmatch(stringKind)
 		if len(parts) != 2 {
 			return stringKind
 		}
@@ -278,7 +278,7 @@ func namedTypeJava(javaKind string, solKind abi.Type) string {
 	case "bool[]":
 		return "Bools"
 	case "BigInt":
-		parts := regexp.MustCompile("(u)?int([0-9]*)(\\[[0-9]*\\])?").FindStringSubmatch(solKind.String())
+		parts := regexp.MustCompile(`(u)?int([0-9]*)(\[[0-9]*\])?`).FindStringSubmatch(solKind.String())
 		if len(parts) != 4 {
 			return javaKind
 		}

accounts/abi/bind/util_test.go

@@ -60,7 +60,7 @@ func TestWaitDeployed(t *testing.T) {
 
 		// Create the transaction.
 		tx := types.NewContractCreation(0, big.NewInt(0), test.gas, big.NewInt(1), common.FromHex(test.code))
-		tx, _ = tx.SignECDSA(types.HomesteadSigner{}, testKey)
+		tx, _ = types.SignTx(tx, types.HomesteadSigner{}, testKey)
 
 		// Wait for it to get mined in the background.
 		var (

accounts/abi/packing.go

@@ -54,7 +54,7 @@ func packElement(t Type, reflectValue reflect.Value) []byte {
 			reflectValue = mustArrayToByteSlice(reflectValue)
 		}
 		return packBytesSlice(reflectValue.Bytes(), reflectValue.Len())
-	case FixedBytesTy:
+	case FixedBytesTy, FunctionTy:
 		if reflectValue.Kind() == reflect.Array {
 			reflectValue = mustArrayToByteSlice(reflectValue)
 		}

accounts/abi/type.go

@@ -34,6 +34,7 @@ const (
 	BytesTy
 	HashTy
 	FixedpointTy
+	FunctionTy
 )
 
 // Type is the reflection of the supported argument type
@@ -64,7 +65,7 @@ var (
 	//      string     int       uint       fixed
 	//      string32   int8      uint8      uint[]
 	//      address    int256    uint256    fixed128x128[2]
-	fullTypeRegex = regexp.MustCompile("([a-zA-Z0-9]+)(\\[([0-9]*)\\])?")
+	fullTypeRegex = regexp.MustCompile(`([a-zA-Z0-9]+)(\[([0-9]*)\])?`)
 	// typeRegex parses the abi sub types
 	typeRegex = regexp.MustCompile("([a-zA-Z]+)(([0-9]+)(x([0-9]+))?)?")
 )
@@ -90,7 +91,12 @@ func NewType(t string) (typ Type, err error) {
 		}
 		typ.Elem = &sliceType
 		typ.stringKind = sliceType.stringKind + t[len(res[1]):]
-		return typ, nil
+		// Although we know that this is an array, we cannot return
+		// as we don't know the type of the element, however, if it
+		// is still an array, then don't determine the type.
+		if typ.Elem.IsArray || typ.Elem.IsSlice {
+			return typ, nil
+		}
 	}
 
 	// parse the type and size of the abi-type.
@@ -111,7 +117,12 @@ func NewType(t string) (typ Type, err error) {
 		varSize = 256
 		t += "256"
 	}
-	typ.stringKind = t
+
+	// only set stringKind if not array or slice, as for those,
+	// the correct string type has been set
+	if !(typ.IsArray || typ.IsSlice) {
+		typ.stringKind = t
+	}
 
 	switch varType {
 	case "int":
@@ -148,6 +159,12 @@ func NewType(t string) (typ Type, err error) {
 			typ.T = FixedBytesTy
 			typ.SliceSize = varSize
 		}
+	case "function":
+		sliceType, _ := NewType("uint8")
+		typ.Elem = &sliceType
+		typ.IsArray = true
+		typ.T = FunctionTy
+		typ.SliceSize = 24
 	default:
 		return Type{}, fmt.Errorf("unsupported arg type: %s", t)
 	}
@@ -168,7 +185,7 @@ func (t Type) pack(v reflect.Value) ([]byte, error) {
 		return nil, err
 	}
 
-	if (t.IsSlice || t.IsArray) && t.T != BytesTy && t.T != FixedBytesTy {
+	if (t.IsSlice || t.IsArray) && t.T != BytesTy && t.T != FixedBytesTy && t.T != FunctionTy {
 		var packed []byte
 
 		for i := 0; i < v.Len(); i++ {

accounts/abi/type_test.go

@@ -34,17 +34,17 @@ func TestTypeRegexp(t *testing.T) {
 		{"int", Type{Kind: reflect.Ptr, Type: big_t, Size: 256, T: IntTy, stringKind: "int256"}},
 		{"int8", Type{Kind: reflect.Int8, Type: big_t, Size: 8, T: IntTy, stringKind: "int8"}},
 		{"int256", Type{Kind: reflect.Ptr, Type: big_t, Size: 256, T: IntTy, stringKind: "int256"}},
-		{"int[]", Type{IsSlice: true, SliceSize: -1, Elem: &Type{Kind: reflect.Ptr, Type: big_t, Size: 256, T: IntTy, stringKind: "int256"}, stringKind: "int256[]"}},
+		{"int[]", Type{IsSlice: true, SliceSize: -1, Kind: reflect.Ptr, Type: big_t, Size: 256, T: IntTy, Elem: &Type{Kind: reflect.Ptr, Type: big_t, Size: 256, T: IntTy, stringKind: "int256"}, stringKind: "int256[]"}},
-		{"int[2]", Type{IsArray: true, SliceSize: 2, Elem: &Type{Kind: reflect.Ptr, Type: big_t, Size: 256, T: IntTy, stringKind: "int256"}, stringKind: "int256[2]"}},
+		{"int[2]", Type{IsArray: true, SliceSize: 2, Kind: reflect.Ptr, Type: big_t, Size: 256, T: IntTy, Elem: &Type{Kind: reflect.Ptr, Type: big_t, Size: 256, T: IntTy, stringKind: "int256"}, stringKind: "int256[2]"}},
-		{"int32[]", Type{IsSlice: true, SliceSize: -1, Elem: &Type{Kind: reflect.Int32, Type: big_t, Size: 32, T: IntTy, stringKind: "int32"}, stringKind: "int32[]"}},
+		{"int32[]", Type{IsSlice: true, SliceSize: -1, Kind: reflect.Int32, Type: big_t, Size: 32, T: IntTy, Elem: &Type{Kind: reflect.Int32, Type: big_t, Size: 32, T: IntTy, stringKind: "int32"}, stringKind: "int32[]"}},
-		{"int32[2]", Type{IsArray: true, SliceSize: 2, Elem: &Type{Kind: reflect.Int32, Type: big_t, Size: 32, T: IntTy, stringKind: "int32"}, stringKind: "int32[2]"}},
+		{"int32[2]", Type{IsArray: true, SliceSize: 2, Kind: reflect.Int32, Type: big_t, Size: 32, T: IntTy, Elem: &Type{Kind: reflect.Int32, Type: big_t, Size: 32, T: IntTy, stringKind: "int32"}, stringKind: "int32[2]"}},
 		{"uint", Type{Kind: reflect.Ptr, Type: ubig_t, Size: 256, T: UintTy, stringKind: "uint256"}},
 		{"uint8", Type{Kind: reflect.Uint8, Type: ubig_t, Size: 8, T: UintTy, stringKind: "uint8"}},
 		{"uint256", Type{Kind: reflect.Ptr, Type: ubig_t, Size: 256, T: UintTy, stringKind: "uint256"}},
-		{"uint[]", Type{IsSlice: true, SliceSize: -1, Elem: &Type{Kind: reflect.Ptr, Type: ubig_t, Size: 256, T: UintTy, stringKind: "uint256"}, stringKind: "uint256[]"}},
+		{"uint[]", Type{IsSlice: true, SliceSize: -1, Kind: reflect.Ptr, Type: ubig_t, Size: 256, T: UintTy, Elem: &Type{Kind: reflect.Ptr, Type: ubig_t, Size: 256, T: UintTy, stringKind: "uint256"}, stringKind: "uint256[]"}},
-		{"uint[2]", Type{IsArray: true, SliceSize: 2, Elem: &Type{Kind: reflect.Ptr, Type: ubig_t, Size: 256, T: UintTy, stringKind: "uint256"}, stringKind: "uint256[2]"}},
+		{"uint[2]", Type{IsArray: true, SliceSize: 2, Kind: reflect.Ptr, Type: ubig_t, Size: 256, T: UintTy, Elem: &Type{Kind: reflect.Ptr, Type: ubig_t, Size: 256, T: UintTy, stringKind: "uint256"}, stringKind: "uint256[2]"}},
-		{"uint32[]", Type{IsSlice: true, SliceSize: -1, Elem: &Type{Kind: reflect.Uint32, Type: big_t, Size: 32, T: UintTy, stringKind: "uint32"}, stringKind: "uint32[]"}},
+		{"uint32[]", Type{IsSlice: true, SliceSize: -1, Kind: reflect.Uint32, Type: ubig_t, Size: 32, T: UintTy, Elem: &Type{Kind: reflect.Uint32, Type: big_t, Size: 32, T: UintTy, stringKind: "uint32"}, stringKind: "uint32[]"}},
-		{"uint32[2]", Type{IsArray: true, SliceSize: 2, Elem: &Type{Kind: reflect.Uint32, Type: big_t, Size: 32, T: UintTy, stringKind: "uint32"}, stringKind: "uint32[2]"}},
+		{"uint32[2]", Type{IsArray: true, SliceSize: 2, Kind: reflect.Uint32, Type: ubig_t, Size: 32, T: UintTy, Elem: &Type{Kind: reflect.Uint32, Type: big_t, Size: 32, T: UintTy, stringKind: "uint32"}, stringKind: "uint32[2]"}},
 		{"bytes", Type{IsSlice: true, SliceSize: -1, Elem: &Type{Kind: reflect.Uint8, Type: ubig_t, Size: 8, T: UintTy, stringKind: "uint8"}, T: BytesTy, stringKind: "bytes"}},
 		{"bytes32", Type{IsArray: true, SliceSize: 32, Elem: &Type{Kind: reflect.Uint8, Type: ubig_t, Size: 8, T: UintTy, stringKind: "uint8"}, T: FixedBytesTy, stringKind: "bytes32"}},
 		{"bytes[]", Type{IsSlice: true, SliceSize: -1, Elem: &Type{IsSlice: true, SliceSize: -1, Elem: &Type{Kind: reflect.Uint8, Type: ubig_t, Size: 8, T: UintTy, stringKind: "uint8"}, T: BytesTy, stringKind: "bytes"}, stringKind: "bytes[]"}},
@@ -52,11 +52,11 @@ func TestTypeRegexp(t *testing.T) {
 		{"bytes32[]", Type{IsSlice: true, SliceSize: -1, Elem: &Type{IsArray: true, SliceSize: 32, Elem: &Type{Kind: reflect.Uint8, Type: ubig_t, Size: 8, T: UintTy, stringKind: "uint8"}, T: FixedBytesTy, stringKind: "bytes32"}, stringKind: "bytes32[]"}},
 		{"bytes32[2]", Type{IsArray: true, SliceSize: 2, Elem: &Type{IsArray: true, SliceSize: 32, Elem: &Type{Kind: reflect.Uint8, Type: ubig_t, Size: 8, T: UintTy, stringKind: "uint8"}, T: FixedBytesTy, stringKind: "bytes32"}, stringKind: "bytes32[2]"}},
 		{"string", Type{Kind: reflect.String, Size: -1, T: StringTy, stringKind: "string"}},
-		{"string[]", Type{IsSlice: true, SliceSize: -1, Elem: &Type{Kind: reflect.String, Size: -1, T: StringTy, stringKind: "string"}, stringKind: "string[]"}},
+		{"string[]", Type{IsSlice: true, SliceSize: -1, Kind: reflect.String, T: StringTy, Size: -1, Elem: &Type{Kind: reflect.String, T: StringTy, Size: -1, stringKind: "string"}, stringKind: "string[]"}},
-		{"string[2]", Type{IsArray: true, SliceSize: 2, Elem: &Type{Kind: reflect.String, Size: -1, T: StringTy, stringKind: "string"}, stringKind: "string[2]"}},
+		{"string[2]", Type{IsArray: true, SliceSize: 2, Kind: reflect.String, T: StringTy, Size: -1, Elem: &Type{Kind: reflect.String, T: StringTy, Size: -1, stringKind: "string"}, stringKind: "string[2]"}},
 		{"address", Type{Kind: reflect.Array, Type: address_t, Size: 20, T: AddressTy, stringKind: "address"}},
-		{"address[]", Type{IsSlice: true, SliceSize: -1, Elem: &Type{Kind: reflect.Array, Type: address_t, Size: 20, T: AddressTy, stringKind: "address"}, stringKind: "address[]"}},
+		{"address[]", Type{IsSlice: true, SliceSize: -1,Kind: reflect.Array, Type:address_t, T: AddressTy, Size:20, Elem: &Type{Kind: reflect.Array, Type: address_t, Size: 20, T: AddressTy, stringKind: "address"}, stringKind: "address[]"}},
-		{"address[2]", Type{IsArray: true, SliceSize: 2, Elem: &Type{Kind: reflect.Array, Type: address_t, Size: 20, T: AddressTy, stringKind: "address"}, stringKind: "address[2]"}},
+		{"address[2]", Type{IsArray: true, SliceSize: 2,Kind: reflect.Array, Type:address_t, T: AddressTy, Size:20, Elem: &Type{Kind: reflect.Array, Type: address_t, Size: 20, T: AddressTy, stringKind: "address"}, stringKind: "address[2]"}},
 
 		// TODO when fixed types are implemented properly
 		// {"fixed", Type{}},

accounts/account_manager.go

@@ -136,13 +136,12 @@ func (am *Manager) DeleteAccount(a Account, passphrase string) error {
 	return err
 }
 
-// Sign calculates a ECDSA signature for the given hash.
+// Sign calculates a ECDSA signature for the given hash. The produced signature
-// Note, Ethereum signatures have a particular format as described in the
+// is in the [R || S || V] format where V is 0 or 1.
-// yellow paper. Use the SignEthereum function to calculate a signature
-// in Ethereum format.
 func (am *Manager) Sign(addr common.Address, hash []byte) ([]byte, error) {
 	am.mu.RLock()
 	defer am.mu.RUnlock()
+
 	unlockedKey, found := am.unlocked[addr]
 	if !found {
 		return nil, ErrLocked
@@ -150,28 +149,16 @@ func (am *Manager) Sign(addr common.Address, hash []byte) ([]byte, error) {
 	return crypto.Sign(hash, unlockedKey.PrivateKey)
 }
 
-// SignEthereum calculates a ECDSA signature for the given hash.
+// SignWithPassphrase signs hash if the private key matching the given address
-// The signature has the format as described in the Ethereum yellow paper.
+// can be decrypted with the given passphrase. The produced signature is in the
-func (am *Manager) SignEthereum(addr common.Address, hash []byte) ([]byte, error) {
+// [R || S || V] format where V is 0 or 1.
-	am.mu.RLock()
+func (am *Manager) SignWithPassphrase(a Account, passphrase string, hash []byte) (signature []byte, err error) {
-	defer am.mu.RUnlock()
+	_, key, err := am.getDecryptedKey(a, passphrase)
-	unlockedKey, found := am.unlocked[addr]
-	if !found {
-		return nil, ErrLocked
-	}
-	return crypto.SignEthereum(hash, unlockedKey.PrivateKey)
-}
-
-// SignWithPassphrase signs hash if the private key matching the given
-// address can be decrypted with the given passphrase.
-func (am *Manager) SignWithPassphrase(addr common.Address, passphrase string, hash []byte) (signature []byte, err error) {
-	_, key, err := am.getDecryptedKey(Account{Address: addr}, passphrase)
 	if err != nil {
 		return nil, err
 	}
-
 	defer zeroKey(key.PrivateKey)
-	return crypto.SignEthereum(hash, key.PrivateKey)
+	return crypto.Sign(hash, key.PrivateKey)
 }
 
 // Unlock unlocks the given account indefinitely.

accounts/accounts_test.go

@@ -95,7 +95,7 @@ func TestSignWithPassphrase(t *testing.T) {
 		t.Fatal("expected account to be locked")
 	}
 
-	_, err = am.SignWithPassphrase(acc.Address, pass, testSigData)
+	_, err = am.SignWithPassphrase(acc, pass, testSigData)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -104,7 +104,7 @@ func TestSignWithPassphrase(t *testing.T) {
 		t.Fatal("expected account to be locked")
 	}
 
-	if _, err = am.SignWithPassphrase(acc.Address, "invalid passwd", testSigData); err == nil {
+	if _, err = am.SignWithPassphrase(acc, "invalid passwd", testSigData); err == nil {
 		t.Fatal("expected SignHash to fail with invalid password")
 	}
 }
@@ -115,6 +115,9 @@ func TestTimedUnlock(t *testing.T) {
 
 	pass := "foo"
 	a1, err := am.NewAccount(pass)
+	if err != nil {
+		t.Fatal(err)
+	}
 
 	// Signing without passphrase fails because account is locked
 	_, err = am.Sign(a1.Address, testSigData)
@@ -147,6 +150,9 @@ func TestOverrideUnlock(t *testing.T) {
 
 	pass := "foo"
 	a1, err := am.NewAccount(pass)
+	if err != nil {
+		t.Fatal(err)
+	}
 
 	// Unlock indefinitely.
 	if err = am.TimedUnlock(a1, pass, 5*time.Minute); err != nil {

accounts/presale.go

@@ -22,6 +22,7 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
+	"errors"
 	"fmt"
 
 	"github.com/ethereum/go-ethereum/crypto"
@@ -53,6 +54,9 @@ func decryptPreSaleKey(fileContent []byte, password string) (key *Key, err error
 		return nil, err
 	}
 	encSeedBytes, err := hex.DecodeString(preSaleKeyStruct.EncSeed)
+	if err != nil {
+		return nil, errors.New("invalid hex in encSeed")
+	}
 	iv := encSeedBytes[:16]
 	cipherText := encSeedBytes[16:]
 	/*

build/ci.go

@@ -24,7 +24,7 @@ Usage: go run ci.go <command> <command flags/arguments>
 Available commands are:
 
    install    [-arch architecture] [ packages... ]                                           -- builds packages and executables
-   test       [ -coverage ] [ -vet ] [ packages... ]                                         -- runs the tests
+   test       [ -coverage ] [ -vet ] [ -misspell ] [ packages... ]                           -- runs the tests
    archive    [-arch architecture] [ -type zip|tar ] [ -signer key-envvar ] [ -upload dest ] -- archives build artefacts
    importkeys                                                                                -- imports signing keys from env
    debsrc     [ -signer key-id ] [ -upload dest ]                                            -- creates a debian source package
@@ -195,7 +195,7 @@ func doInstall(cmdline []string) {
 			if err != nil {
 				log.Fatal(err)
 			}
-			for name, _ := range pkgs {
+			for name := range pkgs {
 				if name == "main" {
 					gobuild := goToolArch(*arch, "build", buildFlags(env)...)
 					gobuild.Args = append(gobuild.Args, "-v")
@@ -262,6 +262,7 @@ func goToolArch(arch string, subcmd string, args ...string) *exec.Cmd {
 func doTest(cmdline []string) {
 	var (
 		vet      = flag.Bool("vet", false, "Whether to run go vet")
+		misspell = flag.Bool("misspell", false, "Whether to run the spell checker")
 		coverage = flag.Bool("coverage", false, "Whether to record code coverage")
 	)
 	flag.CommandLine.Parse(cmdline)
@@ -287,7 +288,9 @@ func doTest(cmdline []string) {
 	if *vet {
 		build.MustRun(goTool("vet", packages...))
 	}
-
+	if *misspell {
+		spellcheck(packages)
+	}
 	// Run the actual tests.
 	gotest := goTool("test")
 	// Test a single package at a time. CI builders are slow
@@ -300,6 +303,34 @@ func doTest(cmdline []string) {
 	build.MustRun(gotest)
 }
 
+// spellcheck runs the client9/misspell spellchecker package on all Go, Cgo and
+// test files in the requested packages.
+func spellcheck(packages []string) {
+	// Ensure the spellchecker is available
+	build.MustRun(goTool("get", "github.com/client9/misspell/cmd/misspell"))
+
+	// Windows chokes on long argument lists, check packages individualy
+	for _, pkg := range packages {
+		// The spell checker doesn't work on packages, gather all .go files for it
+		out, err := goTool("list", "-f", "{{.Dir}}{{range .GoFiles}}\n{{.}}{{end}}{{range .CgoFiles}}\n{{.}}{{end}}{{range .TestGoFiles}}\n{{.}}{{end}}", pkg).CombinedOutput()
+		if err != nil {
+			log.Fatalf("source file listing failed: %v\n%s", err, string(out))
+		}
+		// Retrieve the folder and assemble the source list
+		lines := strings.Split(string(out), "\n")
+		root := lines[0]
+
+		sources := make([]string, 0, len(lines)-1)
+		for _, line := range lines[1:] {
+			if line = strings.TrimSpace(line); line != "" {
+				sources = append(sources, filepath.Join(root, line))
+			}
+		}
+		// Run the spell checker for this particular package
+		build.MustRunCommand(filepath.Join(GOBIN, "misspell"), append([]string{"-error"}, sources...)...)
+	}
+}
+
 // Release Packaging
 
 func doArchive(cmdline []string) {
@@ -792,7 +823,7 @@ func doXCodeFramework(cmdline []string) {
 	// Build the iOS XCode framework
 	build.MustRun(goTool("get", "golang.org/x/mobile/cmd/gomobile"))
 	build.MustRun(gomobileTool("init"))
-	bind := gomobileTool("bind", "--target", "ios", "--tags", "ios", "--prefix", "i", "-v", "github.com/ethereum/go-ethereum/mobile")
+	bind := gomobileTool("bind", "--target", "ios", "--tags", "ios", "-v", "github.com/ethereum/go-ethereum/mobile")
 
 	if *local {
 		// If we're building locally, use the build folder and stop afterwards

build/update-license.go

@@ -185,7 +185,7 @@ func getFiles() []string {
 		files = append(files, line)
 	})
 	if err != nil {
-		log.Fatalf("error getting files:", err)
+		log.Fatal("error getting files:", err)
 	}
 	return files
 }
@@ -294,7 +294,7 @@ func getInfo(files <-chan string, out chan<- *info, wg *sync.WaitGroup) {
 	wg.Done()
 }
 
-// fileInfo finds the lowest year in which the given file was commited.
+// fileInfo finds the lowest year in which the given file was committed.
 func fileInfo(file string) (*info, error) {
 	info := &info{file: file, Year: int64(time.Now().Year())}
 	cmd := exec.Command("git", "log", "--follow", "--find-renames=80", "--find-copies=80", "--pretty=format:%ai", "--", file)

cmd/disasm/main.go

@@ -18,10 +18,10 @@
 package main
 
 import (
+	"encoding/hex"
 	"fmt"
 	"io/ioutil"
 	"os"
-	"encoding/hex"
 	"strings"
 
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -42,15 +42,19 @@ func main() {
 
 	for pc := uint64(0); pc < uint64(len(code)); pc++ {
 		op := vm.OpCode(code[pc])
-		fmt.Printf("%-5d  %v", pc, op)
 
 		switch op {
 		case vm.PUSH1, vm.PUSH2, vm.PUSH3, vm.PUSH4, vm.PUSH5, vm.PUSH6, vm.PUSH7, vm.PUSH8, vm.PUSH9, vm.PUSH10, vm.PUSH11, vm.PUSH12, vm.PUSH13, vm.PUSH14, vm.PUSH15, vm.PUSH16, vm.PUSH17, vm.PUSH18, vm.PUSH19, vm.PUSH20, vm.PUSH21, vm.PUSH22, vm.PUSH23, vm.PUSH24, vm.PUSH25, vm.PUSH26, vm.PUSH27, vm.PUSH28, vm.PUSH29, vm.PUSH30, vm.PUSH31, vm.PUSH32:
 			a := uint64(op) - uint64(vm.PUSH1) + 1
-			fmt.Printf("  => %x", code[pc+1:pc+1+a])
+			u := pc + 1 + a
-
+			if uint64(len(code)) <= pc || uint64(len(code)) < u {
+				fmt.Printf("Error: incomplete push instruction at %v\n", pc)
+				return
+			}
+			fmt.Printf("%-5d  %v  => %x\n", pc, op, code[pc+1:u])
 			pc += a
+		default:
+			fmt.Printf("%-5d  %v\n", pc, op)
 		}
-		fmt.Println()
 	}
 }

cmd/ethtest/main.go

@@ -88,12 +88,7 @@ func runTestWithReader(test string, r io.Reader) error {
 	default:
 		err = fmt.Errorf("Invalid test type specified: %v", test)
 	}
-
+	return err
-	if err != nil {
-		return err
-	}
-
-	return nil
 }
 
 func getFiles(path string) ([]string, error) {

cmd/evm/main.go

@@ -44,14 +44,6 @@ var (
 		Name:  "debug",
 		Usage: "output full trace logs",
 	}
-	ForceJitFlag = cli.BoolFlag{
-		Name:  "forcejit",
-		Usage: "forces jit compilation",
-	}
-	DisableJitFlag = cli.BoolFlag{
-		Name:  "nojit",
-		Usage: "disabled jit compilation",
-	}
 	CodeFlag = cli.StringFlag{
 		Name:  "code",
 		Usage: "EVM code",
@@ -95,6 +87,10 @@ var (
 		Name:  "create",
 		Usage: "indicates the action should be create rather than call",
 	}
+	DisableGasMeteringFlag = cli.BoolFlag{
+		Name:  "nogasmetering",
+		Usage: "disable gas metering",
+	}
 )
 
 func init() {
@@ -102,8 +98,6 @@ func init() {
 		CreateFlag,
 		DebugFlag,
 		VerbosityFlag,
-		ForceJitFlag,
-		DisableJitFlag,
 		SysStatFlag,
 		CodeFlag,
 		CodeFileFlag,
@@ -112,6 +106,7 @@ func init() {
 		ValueFlag,
 		DumpFlag,
 		InputFlag,
+		DisableGasMeteringFlag,
 	}
 	app.Action = run
 }
@@ -165,7 +160,8 @@ func run(ctx *cli.Context) error {
 			GasPrice: common.Big(ctx.GlobalString(PriceFlag.Name)),
 			Value:    common.Big(ctx.GlobalString(ValueFlag.Name)),
 			EVMConfig: vm.Config{
-				Tracer: logger,
+				Tracer:             logger,
+				DisableGasMetering: ctx.GlobalBool(DisableGasMeteringFlag.Name),
 			},
 		})
 	} else {
@@ -179,7 +175,8 @@ func run(ctx *cli.Context) error {
 			GasPrice: common.Big(ctx.GlobalString(PriceFlag.Name)),
 			Value:    common.Big(ctx.GlobalString(ValueFlag.Name)),
 			EVMConfig: vm.Config{
-				Tracer: logger,
+				Tracer:             logger,
+				DisableGasMetering: ctx.GlobalBool(DisableGasMeteringFlag.Name),
 			},
 		})
 	}

cmd/geth/accountcmd_test.go

@@ -148,7 +148,7 @@ Passphrase: {{.InputLine "foobar"}}
 		"Unlocked account f466859ead1932d743d622cb74fc058882e8648a",
 	}
 	for _, m := range wantMessages {
-		if strings.Index(geth.stderrText(), m) == -1 {
+		if !strings.Contains(geth.stderrText(), m) {
 			t.Errorf("stderr text does not contain %q", m)
 		}
 	}
@@ -193,7 +193,7 @@ Passphrase: {{.InputLine "foobar"}}
 		"Unlocked account 289d485d9771714cce91d3393d764e1311907acc",
 	}
 	for _, m := range wantMessages {
-		if strings.Index(geth.stderrText(), m) == -1 {
+		if !strings.Contains(geth.stderrText(), m) {
 			t.Errorf("stderr text does not contain %q", m)
 		}
 	}
@@ -212,7 +212,7 @@ func TestUnlockFlagPasswordFile(t *testing.T) {
 		"Unlocked account 289d485d9771714cce91d3393d764e1311907acc",
 	}
 	for _, m := range wantMessages {
-		if strings.Index(geth.stderrText(), m) == -1 {
+		if !strings.Contains(geth.stderrText(), m) {
 			t.Errorf("stderr text does not contain %q", m)
 		}
 	}
@@ -260,7 +260,7 @@ In order to avoid this warning, you need to remove the following duplicate key f
 		"Unlocked account f466859ead1932d743d622cb74fc058882e8648a",
 	}
 	for _, m := range wantMessages {
-		if strings.Index(geth.stderrText(), m) == -1 {
+		if !strings.Contains(geth.stderrText(), m) {
 			t.Errorf("stderr text does not contain %q", m)
 		}
 	}

cmd/geth/main.go

@@ -88,7 +88,6 @@ func init() {
 		utils.BootnodesFlag,
 		utils.DataDirFlag,
 		utils.KeyStoreDirFlag,
-		utils.OlympicFlag,
 		utils.FastSyncFlag,
 		utils.LightModeFlag,
 		utils.LightServFlag,
@@ -168,7 +167,6 @@ func init() {
 	}
 
 	app.After = func(ctx *cli.Context) error {
-		logger.Flush()
 		debug.Exit()
 		console.Stdin.Close() // Resets terminal mode.
 		return nil

cmd/geth/monitorcmd.go

@@ -236,8 +236,9 @@ func expandMetrics(metrics map[string]interface{}, path string) []string {
 
 // fetchMetric iterates over the metrics map and retrieves a specific one.
 func fetchMetric(metrics map[string]interface{}, metric string) float64 {
-	parts, found := strings.Split(metric, "/"), true
+	parts := strings.Split(metric, "/")
 	for _, part := range parts[:len(parts)-1] {
+		var found bool
 		metrics, found = metrics[part].(map[string]interface{})
 		if !found {
 			return 0

cmd/geth/usage.go

@@ -67,7 +67,6 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.DataDirFlag,
 			utils.KeyStoreDirFlag,
 			utils.NetworkIdFlag,
-			utils.OlympicFlag,
 			utils.TestNetFlag,
 			utils.DevModeFlag,
 			utils.IdentityFlag,

cmd/swarm/main.go

@@ -82,15 +82,15 @@ var (
 		Name:  "bzzconfig",
 		Usage: "Swarm config file path (datadir/bzz)",
 	}
-	SwarmSwapEnabled = cli.BoolFlag{
+	SwarmSwapEnabledFlag = cli.BoolFlag{
 		Name:  "swap",
 		Usage: "Swarm SWAP enabled (default false)",
 	}
-	SwarmSyncEnabled = cli.BoolTFlag{
+	SwarmSyncEnabledFlag = cli.BoolTFlag{
 		Name:  "sync",
 		Usage: "Swarm Syncing enabled (default true)",
 	}
-	EthAPI = cli.StringFlag{
+	EthAPIFlag = cli.StringFlag{
 		Name:  "ethapi",
 		Usage: "URL of the Ethereum API provider",
 		Value: node.DefaultIPCEndpoint("geth"),
@@ -112,6 +112,10 @@ var (
 		Name:  "defaultpath",
 		Usage: "path to file served for empty url path (none)",
 	}
+	CorsStringFlag = cli.StringFlag{
+		Name:  "corsdomain",
+		Usage: "Domain on which to send Access-Control-Allow-Origin header (multiple domains can be supplied separated by a ',')",
+	}
 )
 
 func init() {
@@ -125,7 +129,7 @@ func init() {
 	app.HideVersion = true // we have a command to print the version
 	app.Copyright = "Copyright 2013-2016 The go-ethereum Authors"
 	app.Commands = []cli.Command{
-		cli.Command{
+		{
 			Action:    version,
 			Name:      "version",
 			Usage:     "Print version numbers",
@@ -134,7 +138,7 @@ func init() {
 The output of this command is supposed to be machine-readable.
 `,
 		},
-		cli.Command{
+		{
 			Action:    upload,
 			Name:      "up",
 			Usage:     "upload a file or directory to swarm using the HTTP API",
@@ -143,7 +147,7 @@ The output of this command is supposed to be machine-readable.
 "upload a file or directory to swarm using the HTTP API and prints the root hash",
 `,
 		},
-		cli.Command{
+		{
 			Action:    hash,
 			Name:      "hash",
 			Usage:     "print the swarm hash of a file or directory",
@@ -171,10 +175,11 @@ Prints the swarm hash of file or directory.
 		utils.IPCApiFlag,
 		utils.IPCPathFlag,
 		// bzzd-specific flags
-		EthAPI,
+		CorsStringFlag,
+		EthAPIFlag,
 		SwarmConfigPathFlag,
-		SwarmSwapEnabled,
+		SwarmSwapEnabledFlag,
-		SwarmSyncEnabled,
+		SwarmSyncEnabledFlag,
 		SwarmPortFlag,
 		SwarmAccountFlag,
 		SwarmNetworkIdFlag,
@@ -252,10 +257,11 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) {
 	if len(bzzport) > 0 {
 		bzzconfig.Port = bzzport
 	}
-	swapEnabled := ctx.GlobalBool(SwarmSwapEnabled.Name)
+	swapEnabled := ctx.GlobalBool(SwarmSwapEnabledFlag.Name)
-	syncEnabled := ctx.GlobalBoolT(SwarmSyncEnabled.Name)
+	syncEnabled := ctx.GlobalBoolT(SwarmSyncEnabledFlag.Name)
 
-	ethapi := ctx.GlobalString(EthAPI.Name)
+	ethapi := ctx.GlobalString(EthAPIFlag.Name)
+	cors := ctx.GlobalString(CorsStringFlag.Name)
 
 	boot := func(ctx *node.ServiceContext) (node.Service, error) {
 		var client *ethclient.Client
@@ -265,7 +271,7 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) {
 				utils.Fatalf("Can't connect: %v", err)
 			}
 		}
-		return swarm.NewSwarm(ctx, client, bzzconfig, swapEnabled, syncEnabled)
+		return swarm.NewSwarm(ctx, client, bzzconfig, swapEnabled, syncEnabled, cors)
 	}
 	if err := stack.Register(boot); err != nil {
 		utils.Fatalf("Failed to register the Swarm service: %v", err)

cmd/swarm/upload.go

@@ -50,8 +50,6 @@ func upload(ctx *cli.Context) {
 	var (
 		file   = args[0]
 		client = &client{api: bzzapi}
-		mroot  manifest
-		entry  manifestEntry
 	)
 	fi, err := os.Stat(expandPath(file))
 	if err != nil {
@@ -61,14 +59,21 @@ func upload(ctx *cli.Context) {
 		if !recursive {
 			log.Fatal("argument is a directory and recursive upload is disabled")
 		}
-		mroot, err = client.uploadDirectory(file, defaultPath)
+		if !wantManifest {
-	} else {
+			log.Fatal("manifest is required for directory uploads")
-		entry, err = client.uploadFile(file, fi)
+		}
-		mroot = manifest{[]manifestEntry{entry}}
+		mhash, err := client.uploadDirectory(file, defaultPath)
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Println(mhash)
+		return
 	}
+	entry, err := client.uploadFile(file, fi)
 	if err != nil {
 		log.Fatalln("upload failed:", err)
 	}
+	mroot := manifest{[]manifestEntry{entry}}
 	if !wantManifest {
 		// Print the manifest. This is the only output to stdout.
 		mrootJSON, _ := json.MarshalIndent(mroot, "", "  ")
@@ -123,6 +128,36 @@ type manifest struct {
 	Entries []manifestEntry `json:"entries,omitempty"`
 }
 
+func (c *client) uploadDirectory(dir string, defaultPath string) (string, error) {
+	mhash, err := c.postRaw("application/json", 2, ioutil.NopCloser(bytes.NewReader([]byte("{}"))))
+	if err != nil {
+		return "", fmt.Errorf("failed to upload empty manifest")
+	}
+	if len(defaultPath) > 0 {
+		fi, err := os.Stat(defaultPath)
+		if err != nil {
+			return "", err
+		}
+		mhash, err = c.uploadToManifest(mhash, "", defaultPath, fi)
+		if err != nil {
+			return "", err
+		}
+	}
+	prefix := filepath.ToSlash(filepath.Clean(dir)) + "/"
+	err = filepath.Walk(dir, func(path string, fi os.FileInfo, err error) error {
+		if err != nil || fi.IsDir() {
+			return err
+		}
+		if !strings.HasPrefix(path, dir) {
+			return fmt.Errorf("path %s outside directory %s", path, dir)
+		}
+		uripath := strings.TrimPrefix(filepath.ToSlash(filepath.Clean(path)), prefix)
+		mhash, err = c.uploadToManifest(mhash, uripath, path, fi)
+		return err
+	})
+	return mhash, err
+}
+
 func (c *client) uploadFile(file string, fi os.FileInfo) (manifestEntry, error) {
 	hash, err := c.uploadFileContent(file, fi)
 	m := manifestEntry{
@@ -132,36 +167,6 @@ func (c *client) uploadFile(file string, fi os.FileInfo) (manifestEntry, error)
 	return m, err
 }
 
-func (c *client) uploadDirectory(dir string, defaultPath string) (manifest, error) {
-	dirm := manifest{}
-	if len(defaultPath) > 0 {
-		fi, err := os.Stat(defaultPath)
-		if err != nil {
-			log.Fatal(err)
-		}
-		entry, err := c.uploadFile(defaultPath, fi)
-		if err != nil {
-			log.Fatal(err)
-		}
-		entry.Path = ""
-		dirm.Entries = append(dirm.Entries, entry)
-	}
-	prefix := filepath.ToSlash(filepath.Clean(dir)) + "/"
-	err := filepath.Walk(dir, func(path string, fi os.FileInfo, err error) error {
-		if err != nil || fi.IsDir() {
-			return err
-		}
-		if !strings.HasPrefix(path, dir) {
-			return fmt.Errorf("path %s outside directory %s", path, dir)
-		}
-		entry, err := c.uploadFile(path, fi)
-		entry.Path = strings.TrimPrefix(filepath.ToSlash(filepath.Clean(path)), prefix)
-		dirm.Entries = append(dirm.Entries, entry)
-		return err
-	})
-	return dirm, err
-}
-
 func (c *client) uploadFileContent(file string, fi os.FileInfo) (string, error) {
 	fd, err := os.Open(file)
 	if err != nil {
@@ -181,6 +186,31 @@ func (c *client) uploadManifest(m manifest) (string, error) {
 	return c.postRaw("application/json", int64(len(jsm)), ioutil.NopCloser(bytes.NewReader(jsm)))
 }
 
+func (c *client) uploadToManifest(mhash string, path string, fpath string, fi os.FileInfo) (string, error) {
+	fd, err := os.Open(fpath)
+	if err != nil {
+		return "", err
+	}
+	defer fd.Close()
+	log.Printf("uploading file %s (%d bytes) and adding path %v", fpath, fi.Size(), path)
+	req, err := http.NewRequest("PUT", c.api+"/bzz:/"+mhash+"/"+path, fd)
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("content-type", mime.TypeByExtension(filepath.Ext(fi.Name())))
+	req.ContentLength = fi.Size()
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode >= 400 {
+		return "", fmt.Errorf("bad status: %s", resp.Status)
+	}
+	content, err := ioutil.ReadAll(resp.Body)
+	return string(content), err
+}
+
 func (c *client) postRaw(mimetype string, size int64, body io.ReadCloser) (string, error) {
 	req, err := http.NewRequest("POST", c.api+"/bzzr:/", body)
 	if err != nil {

cmd/utils/cmd.go

@@ -67,7 +67,6 @@ func Fatalf(format string, args ...interface{}) {
 		}
 	}
 	fmt.Fprintf(w, "Fatal: "+format+"\n", args...)
-	logger.Flush()
 	os.Exit(1)
 }
 
@@ -95,7 +94,7 @@ func StartNode(stack *node.Node) {
 
 func FormatTransactionData(data string) []byte {
 	d := common.StringToByteFunc(data, func(s string) (ret []byte) {
-		slice := regexp.MustCompile("\\n|\\s").Split(s, 1000000000)
+		slice := regexp.MustCompile(`\n|\s`).Split(s, 1000000000)
 		for _, dataItem := range slice {
 			d := common.FormatData(dataItem)
 			ret = append(ret, d...)

cmd/utils/customflags.go

@@ -23,8 +23,6 @@ import (
 	"os/user"
 	"path"
 	"strings"
-
-	"gopkg.in/urfave/cli.v1"
 )
 
 // Custom type which is registered in the flags library which cli uses for
@@ -46,7 +44,6 @@ func (self *DirectoryString) Set(value string) error {
 // Custom cli.Flag type which expand the received string to an absolute path.
 // e.g. ~/.ethereum -> /home/username/.ethereum
 type DirectoryFlag struct {
-	cli.GenericFlag
 	Name   string
 	Value  DirectoryString
 	Usage  string
@@ -54,15 +51,10 @@ type DirectoryFlag struct {
 }
 
 func (self DirectoryFlag) String() string {
-	var fmtString string
+	fmtString := "%s %v\t%v"
-	fmtString = "%s %v\t%v"
-
 	if len(self.Value.Value) > 0 {
 		fmtString = "%s \"%v\"\t%v"
-	} else {
-		fmtString = "%s %v\t%v"
 	}
-
 	return withEnvHint(self.EnvVar, fmt.Sprintf(fmtString, prefixedNames(self.Name), self.Value.Value, self.Usage))
 }
 
@@ -122,7 +114,7 @@ func withEnvHint(envVar, str string) string {
 	return str + envText
 }
 
-func (self DirectoryFlag) getName() string {
+func (self DirectoryFlag) GetName() string {
 	return self.Name
 }
 

cmd/utils/flags.go

@@ -21,7 +21,6 @@ import (
 	"crypto/ecdsa"
 	"fmt"
 	"io/ioutil"
-	"math"
 	"math/big"
 	"os"
 	"path/filepath"
@@ -116,13 +115,9 @@ var (
 	}
 	NetworkIdFlag = cli.IntFlag{
 		Name:  "networkid",
-		Usage: "Network identifier (integer, 0=Olympic (disused), 1=Frontier, 2=Morden (disused), 3=Ropsten)",
+		Usage: "Network identifier (integer, 1=Frontier, 2=Morden (disused), 3=Ropsten)",
 		Value: eth.NetworkId,
 	}
-	OlympicFlag = cli.BoolFlag{
-		Name:  "olympic",
-		Usage: "Olympic network: pre-configured pre-release test network",
-	}
 	TestNetFlag = cli.BoolFlag{
 		Name:  "testnet",
 		Usage: "Ropsten network: pre-configured test network",
@@ -485,17 +480,15 @@ func makeNodeUserIdent(ctx *cli.Context) string {
 // MakeBootstrapNodes creates a list of bootstrap nodes from the command line
 // flags, reverting to pre-configured ones if none have been specified.
 func MakeBootstrapNodes(ctx *cli.Context) []*discover.Node {
-	// Return pre-configured nodes if none were manually requested
+	urls := params.MainnetBootnodes
-	if !ctx.GlobalIsSet(BootnodesFlag.Name) {
+	if ctx.GlobalIsSet(BootnodesFlag.Name) {
-		if ctx.GlobalBool(TestNetFlag.Name) {
+		urls = strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",")
-			return params.TestnetBootnodes
+	} else if ctx.GlobalBool(TestNetFlag.Name) {
-		}
+		urls = params.TestnetBootnodes
-		return params.MainnetBootnodes
 	}
-	// Otherwise parse and use the CLI bootstrap nodes
-	bootnodes := []*discover.Node{}
 
-	for _, url := range strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",") {
+	bootnodes := make([]*discover.Node, 0, len(urls))
+	for _, url := range urls {
 		node, err := discover.ParseNode(url)
 		if err != nil {
 			glog.V(logger.Error).Infof("Bootstrap URL %s: %v\n", url, err)
@@ -509,14 +502,13 @@ func MakeBootstrapNodes(ctx *cli.Context) []*discover.Node {
 // MakeBootstrapNodesV5 creates a list of bootstrap nodes from the command line
 // flags, reverting to pre-configured ones if none have been specified.
 func MakeBootstrapNodesV5(ctx *cli.Context) []*discv5.Node {
-	// Return pre-configured nodes if none were manually requested
+	urls := params.DiscoveryV5Bootnodes
-	if !ctx.GlobalIsSet(BootnodesFlag.Name) {
+	if ctx.GlobalIsSet(BootnodesFlag.Name) {
-		return params.DiscoveryV5Bootnodes
+		urls = strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",")
 	}
-	// Otherwise parse and use the CLI bootstrap nodes
-	bootnodes := []*discv5.Node{}
 
-	for _, url := range strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",") {
+	bootnodes := make([]*discv5.Node, 0, len(urls))
+	for _, url := range urls {
 		node, err := discv5.ParseNode(url)
 		if err != nil {
 			glog.V(logger.Error).Infof("Bootstrap URL %s: %v\n", url, err)
@@ -715,7 +707,7 @@ func MakeNode(ctx *cli.Context, name, gitCommit string) *node.Node {
 // given node.
 func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
 	// Avoid conflicting network flags
-	networks, netFlags := 0, []cli.BoolFlag{DevModeFlag, TestNetFlag, OlympicFlag}
+	networks, netFlags := 0, []cli.BoolFlag{DevModeFlag, TestNetFlag}
 	for _, flag := range netFlags {
 		if ctx.GlobalBool(flag.Name) {
 			networks++
@@ -753,12 +745,6 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
 
 	// Override any default configs in dev mode or the test net
 	switch {
-	case ctx.GlobalBool(OlympicFlag.Name):
-		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
-			ethConf.NetworkId = 1
-		}
-		ethConf.Genesis = core.OlympicGenesisBlock()
-
 	case ctx.GlobalBool(TestNetFlag.Name):
 		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
 			ethConf.NetworkId = 3
@@ -766,7 +752,7 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
 		ethConf.Genesis = core.DefaultTestnetGenesisBlock()
 
 	case ctx.GlobalBool(DevModeFlag.Name):
-		ethConf.Genesis = core.OlympicGenesisBlock()
+		ethConf.Genesis = core.DevGenesisBlock()
 		if !ctx.GlobalIsSet(GasPriceFlag.Name) {
 			ethConf.GasPrice = new(big.Int)
 		}
@@ -823,16 +809,6 @@ func RegisterEthStatsService(stack *node.Node, url string) {
 
 // SetupNetwork configures the system for either the main net or some test network.
 func SetupNetwork(ctx *cli.Context) {
-	switch {
-	case ctx.GlobalBool(OlympicFlag.Name):
-		params.DurationLimit = big.NewInt(8)
-		params.GenesisGasLimit = big.NewInt(3141592)
-		params.MinGasLimit = big.NewInt(125000)
-		params.MaximumExtraDataSize = big.NewInt(1024)
-		NetworkIdFlag.Value = 0
-		core.BlockReward = big.NewInt(1.5e+18)
-		core.ExpDiffPeriod = big.NewInt(math.MaxInt64)
-	}
 	params.TargetGasLimit = common.String2Big(ctx.GlobalString(TargetGasLimitFlag.Name))
 }
 
@@ -923,12 +899,13 @@ func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chai
 	var err error
 	chainDb = MakeChainDatabase(ctx, stack)
 
-	if ctx.GlobalBool(OlympicFlag.Name) {
+	if ctx.GlobalBool(TestNetFlag.Name) {
 		_, err := core.WriteTestNetGenesisBlock(chainDb)
 		if err != nil {
 			glog.Fatalln(err)
 		}
 	}
+
 	chainConfig := MakeChainConfigFromDb(ctx, chainDb)
 
 	pow := pow.PoW(core.FakePow{})

common/big_test.go

@@ -27,7 +27,7 @@ func TestMisc(t *testing.T) {
 	c := []byte{1, 2, 3, 4}
 	z := BitTest(a, 1)
 
-	if z != true {
+	if !z {
 		t.Error("Expected true got", z)
 	}
 
@@ -79,11 +79,11 @@ func TestBigCopy(t *testing.T) {
 	z := BigToBytes(c, 16)
 	zbytes := []byte{232, 212, 165, 16, 0}
 
-	if bytes.Compare(y, ybytes) != 0 {
+	if !bytes.Equal(y, ybytes) {
 		t.Error("Got", ybytes)
 	}
 
-	if bytes.Compare(z, zbytes) != 0 {
+	if !bytes.Equal(z, zbytes) {
 		t.Error("Got", zbytes)
 	}
 }

common/bytes.go

@@ -143,7 +143,7 @@ func Hex2BytesFixed(str string, flen int) []byte {
 		return h
 	} else {
 		if len(h) > flen {
-			return h[len(h)-flen : len(h)]
+			return h[len(h)-flen:]
 		} else {
 			hh := make([]byte, flen)
 			copy(hh[flen-len(h):flen], h[:])

common/bytes_test.go

@@ -181,7 +181,7 @@ func TestFromHex(t *testing.T) {
 	input := "0x01"
 	expected := []byte{1}
 	result := FromHex(input)
-	if bytes.Compare(expected, result) != 0 {
+	if !bytes.Equal(expected, result) {
 		t.Errorf("Expected % x got % x", expected, result)
 	}
 }
@@ -190,7 +190,7 @@ func TestFromHexOddLength(t *testing.T) {
 	input := "0x1"
 	expected := []byte{1}
 	result := FromHex(input)
-	if bytes.Compare(expected, result) != 0 {
+	if !bytes.Equal(expected, result) {
 		t.Errorf("Expected % x got % x", expected, result)
 	}
 }

common/compiler/solidity.go

@@ -22,9 +22,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io"
 	"io/ioutil"
-	"os"
 	"os/exec"
 	"regexp"
 	"strings"
@@ -34,7 +32,7 @@ import (
 )
 
 var (
-	versionRegexp = regexp.MustCompile("[0-9]+\\.[0-9]+\\.[0-9]+")
+	versionRegexp = regexp.MustCompile(`[0-9]+\.[0-9]+\.[0-9]+`)
 	solcParams    = []string{
 		"--combined-json", "bin,abi,userdoc,devdoc",
 		"--add-std",  // include standard lib contracts
@@ -96,27 +94,16 @@ func CompileSolidityString(solc, source string) (map[string]*Contract, error) {
 	if solc == "" {
 		solc = "solc"
 	}
-	// Write source to a temporary file. Compiling stdin used to be supported
+	args := append(solcParams, "--")
-	// but seems to produce an exception with solc 0.3.5.
+	cmd := exec.Command(solc, append(args, "-")...)
-	infile, err := ioutil.TempFile("", "geth-compile-solidity")
+	cmd.Stdin = strings.NewReader(source)
-	if err != nil {
+	return runsolc(cmd, source)
-		return nil, err
-	}
-	defer os.Remove(infile.Name())
-	if _, err := io.WriteString(infile, source); err != nil {
-		return nil, err
-	}
-	if err := infile.Close(); err != nil {
-		return nil, err
-	}
-
-	return CompileSolidity(solc, infile.Name())
 }
 
 // CompileSolidity compiles all given Solidity source files.
 func CompileSolidity(solc string, sourcefiles ...string) (map[string]*Contract, error) {
 	if len(sourcefiles) == 0 {
-		return nil, errors.New("solc: no source ")
+		return nil, errors.New("solc: no source files")
 	}
 	source, err := slurpFiles(sourcefiles)
 	if err != nil {
@@ -125,10 +112,13 @@ func CompileSolidity(solc string, sourcefiles ...string) (map[string]*Contract,
 	if solc == "" {
 		solc = "solc"
 	}
-
-	var stderr, stdout bytes.Buffer
 	args := append(solcParams, "--")
 	cmd := exec.Command(solc, append(args, sourcefiles...)...)
+	return runsolc(cmd, source)
+}
+
+func runsolc(cmd *exec.Cmd, source string) (map[string]*Contract, error) {
+	var stderr, stdout bytes.Buffer
 	cmd.Stderr = &stderr
 	cmd.Stdout = &stdout
 	if err := cmd.Run(); err != nil {

common/compiler/solidity_test.go

@@ -20,6 +20,7 @@ import (
 	"encoding/json"
 	"io/ioutil"
 	"os"
+	"os/exec"
 	"path"
 	"testing"
 
@@ -27,8 +28,7 @@ import (
 )
 
 const (
-	supportedSolcVersion = "0.3.5"
+	testSource = `
-	testSource           = `
 contract test {
    /// @notice Will multiply ` + "`a`" + ` by 7.
    function multiply(uint a) returns(uint d) {
@@ -36,23 +36,18 @@ contract test {
    }
 }
 `
-	testCode = "0x6060604052602a8060106000396000f3606060405260e060020a6000350463c6888fa18114601a575b005b6007600435026060908152602090f3"
 	testInfo = `{"source":"\ncontract test {\n   /// @notice Will multiply ` + "`a`" + ` by 7.\n   function multiply(uint a) returns(uint d) {\n       return a * 7;\n   }\n}\n","language":"Solidity","languageVersion":"0.1.1","compilerVersion":"0.1.1","compilerOptions":"--binary file --json-abi file --natspec-user file --natspec-dev file --add-std 1","abiDefinition":[{"constant":false,"inputs":[{"name":"a","type":"uint256"}],"name":"multiply","outputs":[{"name":"d","type":"uint256"}],"type":"function"}],"userDoc":{"methods":{"multiply(uint256)":{"notice":"Will multiply ` + "`a`" + ` by 7."}}},"developerDoc":{"methods":{}}}`
 )
 
-func skipUnsupported(t *testing.T) {
+func skipWithoutSolc(t *testing.T) {
-	sol, err := SolidityVersion("")
+	if _, err := exec.LookPath("solc"); err != nil {
-	if err != nil {
 		t.Skip(err)
-		return
-	}
-	if sol.Version != supportedSolcVersion {
-		t.Skipf("unsupported version of solc found (%v, expect %v)", sol.Version, supportedSolcVersion)
 	}
 }
 
 func TestCompiler(t *testing.T) {
-	skipUnsupported(t)
+	skipWithoutSolc(t)
+
 	contracts, err := CompileSolidityString("", testSource)
 	if err != nil {
 		t.Fatalf("error compiling source. result %v: %v", contracts, err)
@@ -64,19 +59,20 @@ func TestCompiler(t *testing.T) {
 	if !ok {
 		t.Fatal("info for contract 'test' not present in result")
 	}
-	if c.Code != testCode {
+	if c.Code == "" {
-		t.Errorf("wrong code: expected\n%s, got\n%s", testCode, c.Code)
+		t.Error("empty code")
 	}
 	if c.Info.Source != testSource {
 		t.Error("wrong source")
 	}
-	if c.Info.CompilerVersion != supportedSolcVersion {
+	if c.Info.CompilerVersion == "" {
-		t.Errorf("wrong version: expected %q, got %q", supportedSolcVersion, c.Info.CompilerVersion)
+		t.Error("empty version")
 	}
 }
 
 func TestCompileError(t *testing.T) {
-	skipUnsupported(t)
+	skipWithoutSolc(t)
+
 	contracts, err := CompileSolidityString("", testSource[4:])
 	if err == nil {
 		t.Errorf("error expected compiling source. got none. result %v", contracts)

common/format.go

@@ -27,7 +27,7 @@ import (
 // the unnecessary precision off from the formatted textual representation.
 type PrettyDuration time.Duration
 
-var prettyDurationRe = regexp.MustCompile("\\.[0-9]+")
+var prettyDurationRe = regexp.MustCompile(`\.[0-9]+`)
 
 // String implements the Stringer interface, allowing pretty printing of duration
 // values rounded to three decimals.

common/hexutil/hexutil.go

@@ -169,12 +169,7 @@ func EncodeBig(bigint *big.Int) string {
 	if nbits == 0 {
 		return "0x0"
 	}
-	enc := make([]byte, 2, (nbits/8)*2+2)
+	return fmt.Sprintf("0x%x", bigint)
-	copy(enc, "0x")
-	for i := len(bigint.Bits()) - 1; i >= 0; i-- {
-		enc = strconv.AppendUint(enc, uint64(bigint.Bits()[i]), 16)
-	}
-	return string(enc)
 }
 
 func has0xPrefix(input string) bool {

common/hexutil/hexutil_test.go

@@ -46,6 +46,7 @@ var (
 		{referenceBig("1"), "0x1"},
 		{referenceBig("ff"), "0xff"},
 		{referenceBig("112233445566778899aabbccddeeff"), "0x112233445566778899aabbccddeeff"},
+		{referenceBig("80a7f2c1bcc396c00"), "0x80a7f2c1bcc396c00"},
 	}
 
 	encodeUint64Tests = []marshalTest{

common/hexutil/json.go

@@ -109,13 +109,8 @@ func (b *Big) MarshalJSON() ([]byte, error) {
 	if nbits == 0 {
 		return jsonZero, nil
 	}
-	enc := make([]byte, 3, (nbits/8)*2+4)
+	enc := fmt.Sprintf(`"0x%x"`, bigint)
-	copy(enc, `"0x`)
+	return []byte(enc), nil
-	for i := len(bigint.Bits()) - 1; i >= 0; i-- {
-		enc = strconv.AppendUint(enc, uint64(bigint.Bits()[i]), 16)
-	}
-	enc = append(enc, '"')
-	return enc, nil
 }
 
 // UnmarshalJSON implements json.Unmarshaler.
@@ -237,7 +232,7 @@ func checkJSON(input []byte) (raw []byte, err error) {
 		return nil, errNonString
 	}
 	if len(input) == 2 {
-		return nil, ErrEmptyString
+		return nil, nil // empty strings are allowed
 	}
 	if !bytesHave0xPrefix(input[1:]) {
 		return nil, ErrMissingPrefix
@@ -255,7 +250,7 @@ func checkNumberJSON(input []byte) (raw []byte, err error) {
 	}
 	input = input[1 : len(input)-1]
 	if len(input) == 0 {
-		return nil, ErrEmptyString
+		return nil, nil // empty strings are allowed
 	}
 	if !bytesHave0xPrefix(input) {
 		return nil, ErrMissingPrefix

common/hexutil/json_test.go

@@ -60,13 +60,13 @@ var unmarshalBytesTests = []unmarshalTest{
 	{input: "", wantErr: errNonString},
 	{input: "null", wantErr: errNonString},
 	{input: "10", wantErr: errNonString},
-	{input: `""`, wantErr: ErrEmptyString},
 	{input: `"0"`, wantErr: ErrMissingPrefix},
 	{input: `"0x0"`, wantErr: ErrOddLength},
 	{input: `"0xxx"`, wantErr: ErrSyntax},
 	{input: `"0x01zz01"`, wantErr: ErrSyntax},
 
 	// valid encoding
+	{input: `""`, want: referenceBytes("")},
 	{input: `"0x"`, want: referenceBytes("")},
 	{input: `"0x02"`, want: referenceBytes("02")},
 	{input: `"0X02"`, want: referenceBytes("02")},
@@ -125,7 +125,6 @@ var unmarshalBigTests = []unmarshalTest{
 	{input: "", wantErr: errNonString},
 	{input: "null", wantErr: errNonString},
 	{input: "10", wantErr: errNonString},
-	{input: `""`, wantErr: ErrEmptyString},
 	{input: `"0"`, wantErr: ErrMissingPrefix},
 	{input: `"0x"`, wantErr: ErrEmptyNumber},
 	{input: `"0x01"`, wantErr: ErrLeadingZero},
@@ -133,6 +132,7 @@ var unmarshalBigTests = []unmarshalTest{
 	{input: `"0x1zz01"`, wantErr: ErrSyntax},
 
 	// valid encoding
+	{input: `""`, want: big.NewInt(0)},
 	{input: `"0x0"`, want: big.NewInt(0)},
 	{input: `"0x2"`, want: big.NewInt(0x2)},
 	{input: `"0x2F2"`, want: big.NewInt(0x2f2)},
@@ -198,7 +198,6 @@ var unmarshalUint64Tests = []unmarshalTest{
 	{input: "", wantErr: errNonString},
 	{input: "null", wantErr: errNonString},
 	{input: "10", wantErr: errNonString},
-	{input: `""`, wantErr: ErrEmptyString},
 	{input: `"0"`, wantErr: ErrMissingPrefix},
 	{input: `"0x"`, wantErr: ErrEmptyNumber},
 	{input: `"0x01"`, wantErr: ErrLeadingZero},
@@ -207,6 +206,7 @@ var unmarshalUint64Tests = []unmarshalTest{
 	{input: `"0x1zz01"`, wantErr: ErrSyntax},
 
 	// valid encoding
+	{input: `""`, want: uint64(0)},
 	{input: `"0x0"`, want: uint64(0)},
 	{input: `"0x2"`, want: uint64(0x2)},
 	{input: `"0x2F2"`, want: uint64(0x2f2)},

common/math/dist_test.go

@@ -41,24 +41,24 @@ func TestSum(t *testing.T) {
 
 func TestDist(t *testing.T) {
 	var vectors = []Vector{
-		Vector{big.NewInt(1000), big.NewInt(1234)},
+		{big.NewInt(1000), big.NewInt(1234)},
-		Vector{big.NewInt(500), big.NewInt(10023)},
+		{big.NewInt(500), big.NewInt(10023)},
-		Vector{big.NewInt(1034), big.NewInt(1987)},
+		{big.NewInt(1034), big.NewInt(1987)},
-		Vector{big.NewInt(1034), big.NewInt(1987)},
+		{big.NewInt(1034), big.NewInt(1987)},
-		Vector{big.NewInt(8983), big.NewInt(1977)},
+		{big.NewInt(8983), big.NewInt(1977)},
-		Vector{big.NewInt(98382), big.NewInt(1887)},
+		{big.NewInt(98382), big.NewInt(1887)},
-		Vector{big.NewInt(12398), big.NewInt(1287)},
+		{big.NewInt(12398), big.NewInt(1287)},
-		Vector{big.NewInt(12398), big.NewInt(1487)},
+		{big.NewInt(12398), big.NewInt(1487)},
-		Vector{big.NewInt(12398), big.NewInt(1987)},
+		{big.NewInt(12398), big.NewInt(1987)},
-		Vector{big.NewInt(12398), big.NewInt(128)},
+		{big.NewInt(12398), big.NewInt(128)},
-		Vector{big.NewInt(12398), big.NewInt(1987)},
+		{big.NewInt(12398), big.NewInt(1987)},
-		Vector{big.NewInt(1398), big.NewInt(187)},
+		{big.NewInt(1398), big.NewInt(187)},
-		Vector{big.NewInt(12328), big.NewInt(1927)},
+		{big.NewInt(12328), big.NewInt(1927)},
-		Vector{big.NewInt(12398), big.NewInt(1987)},
+		{big.NewInt(12398), big.NewInt(1987)},
-		Vector{big.NewInt(22398), big.NewInt(1287)},
+		{big.NewInt(22398), big.NewInt(1287)},
-		Vector{big.NewInt(1370), big.NewInt(1981)},
+		{big.NewInt(1370), big.NewInt(1981)},
-		Vector{big.NewInt(12398), big.NewInt(1957)},
+		{big.NewInt(12398), big.NewInt(1957)},
-		Vector{big.NewInt(42198), big.NewInt(1987)},
+		{big.NewInt(42198), big.NewInt(1987)},
 	}
 
 	VectorsBy(GasSort).Sort(vectors)

compression/rle/read_write.go

@@ -76,9 +76,9 @@ func compressChunk(dat []byte) (ret []byte, n int) {
 		}
 		return []byte{token, byte(j + 2)}, j
 	case len(dat) >= 32:
-		if dat[0] == empty[0] && bytes.Compare(dat[:32], empty) == 0 {
+		if dat[0] == empty[0] && bytes.Equal(dat[:32], empty) {
 			return []byte{token, emptyShaToken}, 32
-		} else if dat[0] == emptyList[0] && bytes.Compare(dat[:32], emptyList) == 0 {
+		} else if dat[0] == emptyList[0] && bytes.Equal(dat[:32], emptyList) {
 			return []byte{token, emptyListShaToken}, 32
 		}
 		fallthrough

console/bridge.go

@@ -46,7 +46,7 @@ func newBridge(client *rpc.Client, prompter UserPrompter, printer io.Writer) *br
 }
 
 // NewAccount is a wrapper around the personal.newAccount RPC method that uses a
-// non-echoing password prompt to aquire the passphrase and executes the original
+// non-echoing password prompt to acquire the passphrase and executes the original
 // RPC method (saved in jeth.newAccount) with it to actually execute the RPC call.
 func (b *bridge) NewAccount(call otto.FunctionCall) (response otto.Value) {
 	var (
@@ -75,7 +75,7 @@ func (b *bridge) NewAccount(call otto.FunctionCall) (response otto.Value) {
 	default:
 		throwJSException("expected 0 or 1 string argument")
 	}
-	// Password aquired, execute the call and return
+	// Password acquired, execute the call and return
 	ret, err := call.Otto.Call("jeth.newAccount", nil, password)
 	if err != nil {
 		throwJSException(err.Error())
@@ -84,7 +84,7 @@ func (b *bridge) NewAccount(call otto.FunctionCall) (response otto.Value) {
 }
 
 // UnlockAccount is a wrapper around the personal.unlockAccount RPC method that
-// uses a non-echoing password prompt to aquire the passphrase and executes the
+// uses a non-echoing password prompt to acquire the passphrase and executes the
 // original RPC method (saved in jeth.unlockAccount) with it to actually execute
 // the RPC call.
 func (b *bridge) UnlockAccount(call otto.FunctionCall) (response otto.Value) {
@@ -127,7 +127,7 @@ func (b *bridge) UnlockAccount(call otto.FunctionCall) (response otto.Value) {
 }
 
 // Sign is a wrapper around the personal.sign RPC method that uses a non-echoing password
-// prompt to aquire the passphrase and executes the original RPC method (saved in
+// prompt to acquire the passphrase and executes the original RPC method (saved in
 // jeth.sign) with it to actually execute the RPC call.
 func (b *bridge) Sign(call otto.FunctionCall) (response otto.Value) {
 	var (
@@ -270,18 +270,15 @@ func (b *bridge) Send(call otto.FunctionCall) (response otto.Value) {
 			} else {
 				resultVal, err := JSON.Call("parse", string(result))
 				if err != nil {
-					resp = newErrorResponse(call, -32603, err.Error(), &req.Id).Object()
+					setError(resp, -32603, err.Error())
 				} else {
 					resp.Set("result", resultVal)
 				}
 			}
 		case rpc.Error:
-			resp.Set("error", map[string]interface{}{
+			setError(resp, err.ErrorCode(), err.Error())
-				"code":    err.ErrorCode(),
-				"message": err.Error(),
-			})
 		default:
-			resp = newErrorResponse(call, -32603, err.Error(), &req.Id).Object()
+			setError(resp, -32603, err.Error())
 		}
 		resps.Call("push", resp)
 	}
@@ -300,12 +297,8 @@ func (b *bridge) Send(call otto.FunctionCall) (response otto.Value) {
 	return response
 }
 
-func newErrorResponse(call otto.FunctionCall, code int, msg string, id interface{}) otto.Value {
+func setError(resp *otto.Object, code int, msg string) {
-	// Bundle the error into a JSON RPC call response
+	resp.Set("error", map[string]interface{}{"code": code, "message": msg})
-	m := map[string]interface{}{"version": "2.0", "id": id, "error": map[string]interface{}{"code": code, msg: msg}}
-	res, _ := json.Marshal(m)
-	val, _ := call.Otto.Run("(" + string(res) + ")")
-	return val
 }
 
 // throwJSException panics on an otto.Value. The Otto VM will recover from the

console/console.go

@@ -36,9 +36,9 @@ import (
 )
 
 var (
-	passwordRegexp = regexp.MustCompile("personal.[nus]")
+	passwordRegexp = regexp.MustCompile(`personal.[nus]`)
-	onlyWhitespace = regexp.MustCompile("^\\s*$")
+	onlyWhitespace = regexp.MustCompile(`^\s*$`)
-	exit           = regexp.MustCompile("^\\s*exit\\s*;*\\s*$")
+	exit           = regexp.MustCompile(`^\s*exit\s*;*\s*$`)
 )
 
 // HistoryFile is the file within the data directory to store input scrollback.
@@ -226,8 +226,8 @@ func (c *Console) AutoCompleteInput(line string, pos int) (string, []string, str
 	}
 	// Chunck data to relevant part for autocompletion
 	// E.g. in case of nested lines eth.getBalance(eth.coinb<tab><tab>
-	start := 0
+	start := pos - 1
-	for start = pos - 1; start > 0; start-- {
+	for ; start > 0; start-- {
 		// Skip all methods and namespaces (i.e. including te dot)
 		if line[start] == '.' || (line[start] >= 'a' && line[start] <= 'z') || (line[start] >= 'A' && line[start] <= 'Z') {
 			continue
@@ -275,10 +275,7 @@ func (c *Console) Evaluate(statement string) error {
 			fmt.Fprintf(c.printer, "[native] error: %v\n", r)
 		}
 	}()
-	if err := c.jsre.Evaluate(statement, c.printer); err != nil {
+	return c.jsre.Evaluate(statement, c.printer)
-		return err
-	}
-	return nil
 }
 
 // Interactive starts an interactive user session, where input is propted from

console/prompter.go

@@ -44,7 +44,7 @@ type UserPrompter interface {
 	PromptConfirm(prompt string) (bool, error)
 
 	// SetHistory sets the the input scrollback history that the prompter will allow
-	// the user to scoll back to.
+	// the user to scroll back to.
 	SetHistory(history []string)
 
 	// AppendHistory appends an entry to the scrollback history. It should be called
@@ -147,7 +147,7 @@ func (p *terminalPrompter) PromptConfirm(prompt string) (bool, error) {
 }
 
 // SetHistory sets the the input scrollback history that the prompter will allow
-// the user to scoll back to.
+// the user to scroll back to.
 func (p *terminalPrompter) SetHistory(history []string) {
 	p.State.ReadHistory(strings.NewReader(strings.Join(history, "\n")))
 }

contracts/chequebook/cheque.go

@@ -252,7 +252,7 @@ func (self *Chequebook) Issue(beneficiary common.Address, amount *big.Int) (ch *
 		return nil, fmt.Errorf("amount must be greater than zero (%v)", amount)
 	}
 	if self.balance.Cmp(amount) < 0 {
-		err = fmt.Errorf("insufficent funds to issue cheque for amount: %v. balance: %v", amount, self.balance)
+		err = fmt.Errorf("insufficient funds to issue cheque for amount: %v. balance: %v", amount, self.balance)
 	} else {
 		var sig []byte
 		sent, found := self.sent[beneficiary]
@@ -277,7 +277,7 @@ func (self *Chequebook) Issue(beneficiary common.Address, amount *big.Int) (ch *
 	}
 
 	// auto deposit if threshold is set and balance is less then threshold
-	// note this is called even if issueing cheque fails
+	// note this is called even if issuing cheque fails
 	// so we reattempt depositing
 	if self.threshold != nil {
 		if self.balance.Cmp(self.threshold) < 0 {

contracts/chequebook/cheque_test.go

@@ -73,8 +73,8 @@ func TestIssueAndReceive(t *testing.T) {
 	}
 	chbook.sent[addr1] = new(big.Int).SetUint64(42)
 	amount := common.Big1
-	ch, err := chbook.Issue(addr1, amount)
+
-	if err == nil {
+	if _, err = chbook.Issue(addr1, amount); err == nil {
 		t.Fatalf("expected insufficient funds error, got none")
 	}
 
@@ -83,7 +83,7 @@ func TestIssueAndReceive(t *testing.T) {
 		t.Fatalf("expected: %v, got %v", "0", chbook.Balance())
 	}
 
-	ch, err = chbook.Issue(addr1, amount)
+	ch, err := chbook.Issue(addr1, amount)
 	if err != nil {
 		t.Fatalf("expected no error, got %v", err)
 	}
@@ -128,8 +128,8 @@ func TestCheckbookFile(t *testing.T) {
 		t.Errorf("expected: %v, got %v", "0", chbook.Balance())
 	}
 
-	ch, err := chbook.Issue(addr1, common.Big1)
+	var ch *Cheque
-	if err != nil {
+	if ch, err = chbook.Issue(addr1, common.Big1); err != nil {
 		t.Fatalf("expected no error, got %v", err)
 	}
 	if ch.Amount.Cmp(new(big.Int).SetUint64(43)) != 0 {
@@ -155,7 +155,7 @@ func TestVerifyErrors(t *testing.T) {
 	}
 
 	path1 := filepath.Join(os.TempDir(), "chequebook-test-1.json")
-	contr1, err := deploy(key1, common.Big2, backend)
+	contr1, _ := deploy(key1, common.Big2, backend)
 	chbook1, err := NewChequebook(path1, contr1, key1, backend)
 	if err != nil {
 		t.Errorf("expected no error, got %v", err)
@@ -223,7 +223,8 @@ func TestVerifyErrors(t *testing.T) {
 func TestDeposit(t *testing.T) {
 	path0 := filepath.Join(os.TempDir(), "chequebook-test-0.json")
 	backend := newTestBackend()
-	contr0, err := deploy(key0, new(big.Int), backend)
+	contr0, _ := deploy(key0, new(big.Int), backend)
+
 	chbook, err := NewChequebook(path0, contr0, key0, backend)
 	if err != nil {
 		t.Errorf("expected no error, got %v", err)
@@ -361,7 +362,8 @@ func TestDeposit(t *testing.T) {
 func TestCash(t *testing.T) {
 	path := filepath.Join(os.TempDir(), "chequebook-test.json")
 	backend := newTestBackend()
-	contr0, err := deploy(key0, common.Big2, backend)
+	contr0, _ := deploy(key0, common.Big2, backend)
+
 	chbook, err := NewChequebook(path, contr0, key0, backend)
 	if err != nil {
 		t.Errorf("expected no error, got %v", err)
@@ -380,11 +382,12 @@ func TestCash(t *testing.T) {
 	}
 
 	// cashing latest cheque
-	_, err = chbox.Receive(ch)
+	if _, err = chbox.Receive(ch); err != nil {
-	if err != nil {
 		t.Fatalf("expected no error, got %v", err)
 	}
-	_, err = ch.Cash(chbook.session)
+	if _, err = ch.Cash(chbook.session); err != nil {
+		t.Fatal("Cash failed:", err)
+	}
 	backend.Commit()
 
 	chbook.balance = new(big.Int).Set(common.Big3)

contracts/ens/ens_test.go

@@ -29,7 +29,7 @@ import (
 var (
 	key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
 	name   = "my name on ENS"
-	hash   = crypto.Sha3Hash([]byte("my content"))
+	hash   = crypto.Keccak256Hash([]byte("my content"))
 	addr   = crypto.PubkeyToAddress(key.PublicKey)
 )
 

contracts/release/contract.sol

@@ -78,7 +78,7 @@ contract ReleaseOracle {
   }
 
   // signers is an accessor method to retrieve all te signers (public accessor
-  // generates an indexed one, not a retreive-all version).
+  // generates an indexed one, not a retrieve-all version).
   function signers() constant returns(address[]) {
     return voters;
   }
@@ -178,7 +178,7 @@ contract ReleaseOracle {
           voters[i] = voters[voters.length - 1];
           voters.length--;
 
-          delete verProp; // Nuke any version proposal (no suprise releases!)
+          delete verProp; // Nuke any version proposal (no surprise releases!)
           break;
         }
       }

core/bench_test.go

@@ -83,7 +83,7 @@ func genValueTx(nbytes int) func(int, *BlockGen) {
 		toaddr := common.Address{}
 		data := make([]byte, nbytes)
 		gas := IntrinsicGas(data, false, false)
-		tx, _ := types.NewTransaction(gen.TxNonce(benchRootAddr), toaddr, big.NewInt(1), gas, nil, data).SignECDSA(types.HomesteadSigner{}, benchRootKey)
+		tx, _ := types.SignTx(types.NewTransaction(gen.TxNonce(benchRootAddr), toaddr, big.NewInt(1), gas, nil, data), types.HomesteadSigner{}, benchRootKey)
 		gen.AddTx(tx)
 	}
 }
@@ -123,7 +123,7 @@ func genTxRing(naccounts int) func(int, *BlockGen) {
 				nil,
 				nil,
 			)
-			tx, _ = tx.SignECDSA(types.HomesteadSigner{}, ringKeys[from])
+			tx, _ = types.SignTx(tx, types.HomesteadSigner{}, ringKeys[from])
 			gen.AddTx(tx)
 			from = to
 		}

core/block_validator_test.go

@@ -24,11 +24,9 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/params"
-	"github.com/ethereum/go-ethereum/pow/ezp"
 )
 
 func testChainConfig() *params.ChainConfig {
@@ -49,20 +47,19 @@ func proc() (Validator, *BlockChain) {
 }
 
 func TestNumber(t *testing.T) {
-	pow := ezp.New()
 	_, chain := proc()
 
 	statedb, _ := state.New(chain.Genesis().Root(), chain.chainDb)
 	cfg := testChainConfig()
 	header := makeHeader(cfg, chain.Genesis(), statedb)
 	header.Number = big.NewInt(3)
-	err := ValidateHeader(cfg, pow, header, chain.Genesis().Header(), false, false)
+	err := ValidateHeader(cfg, FakePow{}, header, chain.Genesis().Header(), false, false)
 	if err != BlockNumberErr {
 		t.Errorf("expected block number error, got %q", err)
 	}
 
 	header = makeHeader(cfg, chain.Genesis(), statedb)
-	err = ValidateHeader(cfg, pow, header, chain.Genesis().Header(), false, false)
+	err = ValidateHeader(cfg, FakePow{}, header, chain.Genesis().Header(), false, false)
 	if err == BlockNumberErr {
 		t.Errorf("didn't expect block number error")
 	}
@@ -77,7 +74,7 @@ func TestPutReceipt(t *testing.T) {
 	hash[0] = 2
 
 	receipt := new(types.Receipt)
-	receipt.Logs = vm.Logs{&vm.Log{
+	receipt.Logs = []*types.Log{{
 		Address:     addr,
 		Topics:      []common.Hash{hash},
 		Data:        []byte("hi"),

core/blockchain.go

@@ -29,6 +29,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/mclock"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -46,9 +47,6 @@ import (
 )
 
 var (
-	chainlogger = logger.NewLogger("CHAIN")
-	jsonlogger  = logger.NewJsonLogger()
-
 	blockInsertTimer = metrics.NewTimer("chain/inserts")
 
 	ErrNoGenesis = errors.New("Genesis not found in chain")
@@ -150,7 +148,7 @@ func NewBlockChain(chainDb ethdb.Database, config *params.ChainConfig, pow pow.P
 		return nil, err
 	}
 	// Check the current state of the block hashes and make sure that we do not have any of the bad blocks in our chain
-	for hash, _ := range BadHashes {
+	for hash := range BadHashes {
 		if header := bc.GetHeaderByHash(hash); header != nil {
 			// get the canonical block corresponding to the offending header's number
 			headerByNumber := bc.GetHeaderByNumber(header.Number.Uint64())
@@ -402,10 +400,7 @@ func (bc *BlockChain) ResetWithGenesisBlock(genesis *types.Block) {
 
 // Export writes the active chain to the given writer.
 func (self *BlockChain) Export(w io.Writer) error {
-	if err := self.ExportN(w, uint64(0), self.currentBlock.NumberU64()); err != nil {
+	return self.ExportN(w, uint64(0), self.currentBlock.NumberU64())
-		return err
-	}
-	return nil
 }
 
 // ExportN writes a subset of the active chain to the given writer.
@@ -805,7 +800,7 @@ func (self *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain
 	if stats.ignored > 0 {
 		ignored = fmt.Sprintf(" (%d ignored)", stats.ignored)
 	}
-	glog.V(logger.Info).Infof("imported %d receipts in %9v. #%d [%x… / %x…]%s", stats.processed, common.PrettyDuration(time.Since(start)), last.Number(), first.Hash().Bytes()[:4], last.Hash().Bytes()[:4], ignored)
+	glog.V(logger.Info).Infof("imported %4d receipts in %9v. #%d [%x… / %x…]%s", stats.processed, common.PrettyDuration(time.Since(start)), last.Number(), first.Hash().Bytes()[:4], last.Hash().Bytes()[:4], ignored)
 
 	return 0, nil
 }
@@ -881,9 +876,9 @@ func (self *BlockChain) InsertChain(chain types.Blocks) (int, error) {
 	// faster than direct delivery and requires much less mutex
 	// acquiring.
 	var (
-		stats         = insertStats{startTime: time.Now()}
+		stats         = insertStats{startTime: mclock.Now()}
 		events        = make([]interface{}, 0, len(chain))
-		coalescedLogs vm.Logs
+		coalescedLogs []*types.Log
 		nonceChecked  = make([]bool, len(chain))
 	)
 
@@ -1037,7 +1032,7 @@ type insertStats struct {
 	queued, processed, ignored int
 	usedGas                    uint64
 	lastIndex                  int
-	startTime                  time.Time
+	startTime                  mclock.AbsTime
 }
 
 // statsReportLimit is the time limit during import after which we always print
@@ -1049,28 +1044,24 @@ const statsReportLimit = 8 * time.Second
 func (st *insertStats) report(chain []*types.Block, index int) {
 	// Fetch the timings for the batch
 	var (
-		now     = time.Now()
+		now     = mclock.Now()
-		elapsed = now.Sub(st.startTime)
+		elapsed = time.Duration(now) - time.Duration(st.startTime)
 	)
-	if elapsed == 0 { // Yes Windows, I'm looking at you
-		elapsed = 1
-	}
 	// If we're at the last block of the batch or report period reached, log
 	if index == len(chain)-1 || elapsed >= statsReportLimit {
 		start, end := chain[st.lastIndex], chain[index]
 		txcount := countTransactions(chain[st.lastIndex : index+1])
 
-		extra := ""
+		var hashes, extra string
 		if st.queued > 0 || st.ignored > 0 {
 			extra = fmt.Sprintf(" (%d queued %d ignored)", st.queued, st.ignored)
 		}
-		hashes := ""
 		if st.processed > 1 {
 			hashes = fmt.Sprintf("%x… / %x…", start.Hash().Bytes()[:4], end.Hash().Bytes()[:4])
 		} else {
 			hashes = fmt.Sprintf("%x…", end.Hash().Bytes()[:4])
 		}
-		glog.Infof("imported %d blocks, %5d txs (%7.3f Mg) in %9v (%6.3f Mg/s). #%v [%s]%s", st.processed, txcount, float64(st.usedGas)/1000000, common.PrettyDuration(elapsed), float64(st.usedGas)*1000/float64(elapsed), end.Number(), hashes, extra)
+		glog.Infof("imported %4d blocks, %5d txs (%7.3f Mg) in %9v (%6.3f Mg/s). #%v [%s]%s", st.processed, txcount, float64(st.usedGas)/1000000, common.PrettyDuration(elapsed), float64(st.usedGas)*1000/float64(elapsed), end.Number(), hashes, extra)
 
 		*st = insertStats{startTime: now, lastIndex: index}
 	}
@@ -1094,7 +1085,7 @@ func (self *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
 		oldStart    = oldBlock
 		newStart    = newBlock
 		deletedTxs  types.Transactions
-		deletedLogs vm.Logs
+		deletedLogs []*types.Log
 		// collectLogs collects the logs that were generated during the
 		// processing of the block that corresponds with the given hash.
 		// These logs are later announced as deleted.
@@ -1210,7 +1201,7 @@ func (self *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
 
 // postChainEvents iterates over the events generated by a chain insertion and
 // posts them into the event mux.
-func (self *BlockChain) postChainEvents(events []interface{}, logs vm.Logs) {
+func (self *BlockChain) postChainEvents(events []interface{}, logs []*types.Log) {
 	// post event logs for further processing
 	self.eventMux.Post(logs)
 	for _, event := range events {

core/blockchain_test.go

@@ -435,7 +435,7 @@ func (bproc) ValidateHeader(*types.Header, *types.Header, bool) error { return n
 func (bproc) ValidateState(block, parent *types.Block, state *state.StateDB, receipts types.Receipts, usedGas *big.Int) error {
 	return nil
 }
-func (bproc) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, vm.Logs, *big.Int, error) {
+func (bproc) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, []*types.Log, *big.Int, error) {
 	return nil, nil, new(big.Int), nil
 }
 
@@ -719,7 +719,7 @@ func TestFastVsFullChains(t *testing.T) {
 		// If the block number is multiple of 3, send a few bonus transactions to the miner
 		if i%3 == 2 {
 			for j := 0; j < i%4+1; j++ {
-				tx, err := types.NewTransaction(block.TxNonce(address), common.Address{0x00}, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key)
+				tx, err := types.SignTx(types.NewTransaction(block.TxNonce(address), common.Address{0x00}, big.NewInt(1000), params.TxGas, nil, nil), signer, key)
 				if err != nil {
 					panic(err)
 				}
@@ -883,8 +883,8 @@ func TestChainTxReorgs(t *testing.T) {
 	// Create two transactions shared between the chains:
 	//  - postponed: transaction included at a later block in the forked chain
 	//  - swapped: transaction included at the same block number in the forked chain
-	postponed, _ := types.NewTransaction(0, addr1, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key1)
+	postponed, _ := types.SignTx(types.NewTransaction(0, addr1, big.NewInt(1000), params.TxGas, nil, nil), signer, key1)
-	swapped, _ := types.NewTransaction(1, addr1, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key1)
+	swapped, _ := types.SignTx(types.NewTransaction(1, addr1, big.NewInt(1000), params.TxGas, nil, nil), signer, key1)
 
 	// Create two transactions that will be dropped by the forked chain:
 	//  - pastDrop: transaction dropped retroactively from a past block
@@ -900,13 +900,13 @@ func TestChainTxReorgs(t *testing.T) {
 	chain, _ := GenerateChain(params.TestChainConfig, genesis, db, 3, func(i int, gen *BlockGen) {
 		switch i {
 		case 0:
-			pastDrop, _ = types.NewTransaction(gen.TxNonce(addr2), addr2, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key2)
+			pastDrop, _ = types.SignTx(types.NewTransaction(gen.TxNonce(addr2), addr2, big.NewInt(1000), params.TxGas, nil, nil), signer, key2)
 
 			gen.AddTx(pastDrop)  // This transaction will be dropped in the fork from below the split point
 			gen.AddTx(postponed) // This transaction will be postponed till block #3 in the fork
 
 		case 2:
-			freshDrop, _ = types.NewTransaction(gen.TxNonce(addr2), addr2, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key2)
+			freshDrop, _ = types.SignTx(types.NewTransaction(gen.TxNonce(addr2), addr2, big.NewInt(1000), params.TxGas, nil, nil), signer, key2)
 
 			gen.AddTx(freshDrop) // This transaction will be dropped in the fork from exactly at the split point
 			gen.AddTx(swapped)   // This transaction will be swapped out at the exact height
@@ -925,18 +925,18 @@ func TestChainTxReorgs(t *testing.T) {
 	chain, _ = GenerateChain(params.TestChainConfig, genesis, db, 5, func(i int, gen *BlockGen) {
 		switch i {
 		case 0:
-			pastAdd, _ = types.NewTransaction(gen.TxNonce(addr3), addr3, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key3)
+			pastAdd, _ = types.SignTx(types.NewTransaction(gen.TxNonce(addr3), addr3, big.NewInt(1000), params.TxGas, nil, nil), signer, key3)
 			gen.AddTx(pastAdd) // This transaction needs to be injected during reorg
 
 		case 2:
 			gen.AddTx(postponed) // This transaction was postponed from block #1 in the original chain
 			gen.AddTx(swapped)   // This transaction was swapped from the exact current spot in the original chain
 
-			freshAdd, _ = types.NewTransaction(gen.TxNonce(addr3), addr3, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key3)
+			freshAdd, _ = types.SignTx(types.NewTransaction(gen.TxNonce(addr3), addr3, big.NewInt(1000), params.TxGas, nil, nil), signer, key3)
 			gen.AddTx(freshAdd) // This transaction will be added exactly at reorg time
 
 		case 3:
-			futureAdd, _ = types.NewTransaction(gen.TxNonce(addr3), addr3, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key3)
+			futureAdd, _ = types.SignTx(types.NewTransaction(gen.TxNonce(addr3), addr3, big.NewInt(1000), params.TxGas, nil, nil), signer, key3)
 			gen.AddTx(futureAdd) // This transaction will be added after a full reorg
 		}
 	})
@@ -995,7 +995,7 @@ func TestLogReorgs(t *testing.T) {
 	subs := evmux.Subscribe(RemovedLogsEvent{})
 	chain, _ := GenerateChain(params.TestChainConfig, genesis, db, 2, func(i int, gen *BlockGen) {
 		if i == 1 {
-			tx, err := types.NewContractCreation(gen.TxNonce(addr1), new(big.Int), big.NewInt(1000000), new(big.Int), code).SignECDSA(signer, key1)
+			tx, err := types.SignTx(types.NewContractCreation(gen.TxNonce(addr1), new(big.Int), big.NewInt(1000000), new(big.Int), code), signer, key1)
 			if err != nil {
 				t.Fatalf("failed to create tx: %v", err)
 			}
@@ -1035,7 +1035,7 @@ func TestReorgSideEvent(t *testing.T) {
 	}
 
 	replacementBlocks, _ := GenerateChain(params.TestChainConfig, genesis, db, 4, func(i int, gen *BlockGen) {
-		tx, err := types.NewContractCreation(gen.TxNonce(addr1), new(big.Int), big.NewInt(1000000), new(big.Int), nil).SignECDSA(signer, key1)
+		tx, err := types.SignTx(types.NewContractCreation(gen.TxNonce(addr1), new(big.Int), big.NewInt(1000000), new(big.Int), nil), signer, key1)
 		if i == 2 {
 			gen.OffsetTime(-1)
 		}
@@ -1107,7 +1107,7 @@ func TestCanonicalBlockRetrieval(t *testing.T) {
 
 	chain, _ := GenerateChain(params.TestChainConfig, genesis, db, 10, func(i int, gen *BlockGen) {})
 
-	for i, _ := range chain {
+	for i := range chain {
 		go func(block *types.Block) {
 			// try to retrieve a block by its canonical hash and see if the block data can be retrieved.
 			for {
@@ -1152,7 +1152,7 @@ func TestEIP155Transition(t *testing.T) {
 			tx      *types.Transaction
 			err     error
 			basicTx = func(signer types.Signer) (*types.Transaction, error) {
-				return types.NewTransaction(block.TxNonce(address), common.Address{}, new(big.Int), big.NewInt(21000), new(big.Int), nil).SignECDSA(signer, key)
+				return types.SignTx(types.NewTransaction(block.TxNonce(address), common.Address{}, new(big.Int), big.NewInt(21000), new(big.Int), nil), signer, key)
 			}
 		)
 		switch i {
@@ -1215,7 +1215,7 @@ func TestEIP155Transition(t *testing.T) {
 			tx      *types.Transaction
 			err     error
 			basicTx = func(signer types.Signer) (*types.Transaction, error) {
-				return types.NewTransaction(block.TxNonce(address), common.Address{}, new(big.Int), big.NewInt(21000), new(big.Int), nil).SignECDSA(signer, key)
+				return types.SignTx(types.NewTransaction(block.TxNonce(address), common.Address{}, new(big.Int), big.NewInt(21000), new(big.Int), nil), signer, key)
 			}
 		)
 		switch i {
@@ -1260,11 +1260,11 @@ func TestEIP161AccountRemoval(t *testing.T) {
 		)
 		switch i {
 		case 0:
-			tx, err = types.NewTransaction(block.TxNonce(address), theAddr, new(big.Int), big.NewInt(21000), new(big.Int), nil).SignECDSA(signer, key)
+			tx, err = types.SignTx(types.NewTransaction(block.TxNonce(address), theAddr, new(big.Int), big.NewInt(21000), new(big.Int), nil), signer, key)
 		case 1:
-			tx, err = types.NewTransaction(block.TxNonce(address), theAddr, new(big.Int), big.NewInt(21000), new(big.Int), nil).SignECDSA(signer, key)
+			tx, err = types.SignTx(types.NewTransaction(block.TxNonce(address), theAddr, new(big.Int), big.NewInt(21000), new(big.Int), nil), signer, key)
 		case 2:
-			tx, err = types.NewTransaction(block.TxNonce(address), theAddr, new(big.Int), big.NewInt(21000), new(big.Int), nil).SignECDSA(signer, key)
+			tx, err = types.SignTx(types.NewTransaction(block.TxNonce(address), theAddr, new(big.Int), big.NewInt(21000), new(big.Int), nil), signer, key)
 		}
 		if err != nil {
 			t.Fatal(err)

core/chain_makers.go

@@ -108,7 +108,7 @@ func (b *BlockGen) AddTx(tx *types.Transaction) {
 		b.SetCoinbase(common.Address{})
 	}
 	b.statedb.StartRecord(tx.Hash(), common.Hash{}, len(b.txs))
-	receipt, _, _, err := ApplyTransaction(b.config, nil, b.gasPool, b.statedb, b.header, tx, b.header.GasUsed, vm.Config{})
+	receipt, _, err := ApplyTransaction(b.config, nil, b.gasPool, b.statedb, b.header, tx, b.header.GasUsed, vm.Config{})
 	if err != nil {
 		panic(err)
 	}

core/chain_makers_test.go

@@ -55,13 +55,13 @@ func ExampleGenerateChain() {
 		switch i {
 		case 0:
 			// In block 1, addr1 sends addr2 some ether.
-			tx, _ := types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(10000), params.TxGas, nil, nil).SignECDSA(signer, key1)
+			tx, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(10000), params.TxGas, nil, nil), signer, key1)
 			gen.AddTx(tx)
 		case 1:
 			// In block 2, addr1 sends some more ether to addr2.
 			// addr2 passes it on to addr3.
-			tx1, _ := types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key1)
+			tx1, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(1000), params.TxGas, nil, nil), signer, key1)
-			tx2, _ := types.NewTransaction(gen.TxNonce(addr2), addr3, big.NewInt(1000), params.TxGas, nil, nil).SignECDSA(signer, key2)
+			tx2, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr2), addr3, big.NewInt(1000), params.TxGas, nil, nil), signer, key2)
 			gen.AddTx(tx1)
 			gen.AddTx(tx2)
 		case 2:

core/dao.go

@@ -45,11 +45,11 @@ func ValidateDAOHeaderExtraData(config *params.ChainConfig, header *types.Header
 	}
 	// Depending whether we support or oppose the fork, validate the extra-data contents
 	if config.DAOForkSupport {
-		if bytes.Compare(header.Extra, params.DAOForkBlockExtra) != 0 {
+		if !bytes.Equal(header.Extra, params.DAOForkBlockExtra) {
 			return ValidationError("DAO pro-fork bad block extra-data: 0x%x", header.Extra)
 		}
 	} else {
-		if bytes.Compare(header.Extra, params.DAOForkBlockExtra) == 0 {
+		if bytes.Equal(header.Extra, params.DAOForkBlockExtra) {
 			return ValidationError("DAO no-fork bad block extra-data: 0x%x", header.Extra)
 		}
 	}

core/database_util.go

@@ -23,6 +23,7 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
+	"sync"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
@@ -63,6 +64,8 @@ var (
 	oldBlockHashPrefix     = []byte("block-hash-") // [deprecated by the header/block split, remove eventually]
 
 	ChainConfigNotFoundErr = errors.New("ChainConfig not found") // general config not found error
+
+	mipmapBloomMu sync.Mutex // protect against race condition when updating mipmap blooms
 )
 
 // encodeBlockNumber encodes a block number as big endian uint64
@@ -564,6 +567,9 @@ func mipmapKey(num, level uint64) []byte {
 // WriteMapmapBloom writes each address included in the receipts' logs to the
 // MIP bloom bin.
 func WriteMipmapBloom(db ethdb.Database, number uint64, receipts types.Receipts) error {
+	mipmapBloomMu.Lock()
+	defer mipmapBloomMu.Unlock()
+
 	batch := db.NewBatch()
 	for _, level := range MIPMapLevels {
 		key := mipmapKey(number, level)

core/database_util_test.go

@@ -26,7 +26,6 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/crypto/sha3"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -393,9 +392,9 @@ func TestReceiptStorage(t *testing.T) {
 	receipt1 := &types.Receipt{
 		PostState:         []byte{0x01},
 		CumulativeGasUsed: big.NewInt(1),
-		Logs: vm.Logs{
+		Logs: []*types.Log{
-			&vm.Log{Address: common.BytesToAddress([]byte{0x11})},
+			{Address: common.BytesToAddress([]byte{0x11})},
-			&vm.Log{Address: common.BytesToAddress([]byte{0x01, 0x11})},
+			{Address: common.BytesToAddress([]byte{0x01, 0x11})},
 		},
 		TxHash:          common.BytesToHash([]byte{0x11, 0x11}),
 		ContractAddress: common.BytesToAddress([]byte{0x01, 0x11, 0x11}),
@@ -404,9 +403,9 @@ func TestReceiptStorage(t *testing.T) {
 	receipt2 := &types.Receipt{
 		PostState:         []byte{0x02},
 		CumulativeGasUsed: big.NewInt(2),
-		Logs: vm.Logs{
+		Logs: []*types.Log{
-			&vm.Log{Address: common.BytesToAddress([]byte{0x22})},
+			{Address: common.BytesToAddress([]byte{0x22})},
-			&vm.Log{Address: common.BytesToAddress([]byte{0x02, 0x22})},
+			{Address: common.BytesToAddress([]byte{0x02, 0x22})},
 		},
 		TxHash:          common.BytesToHash([]byte{0x22, 0x22}),
 		ContractAddress: common.BytesToAddress([]byte{0x02, 0x22, 0x22}),
@@ -431,7 +430,7 @@ func TestReceiptStorage(t *testing.T) {
 			rlpHave, _ := rlp.EncodeToBytes(r)
 			rlpWant, _ := rlp.EncodeToBytes(receipt)
 
-			if bytes.Compare(rlpHave, rlpWant) != 0 {
+			if !bytes.Equal(rlpHave, rlpWant) {
 				t.Fatalf("receipt #%d [%x]: receipt mismatch: have %v, want %v", i, receipt.TxHash, r, receipt)
 			}
 		}
@@ -452,9 +451,9 @@ func TestBlockReceiptStorage(t *testing.T) {
 	receipt1 := &types.Receipt{
 		PostState:         []byte{0x01},
 		CumulativeGasUsed: big.NewInt(1),
-		Logs: vm.Logs{
+		Logs: []*types.Log{
-			&vm.Log{Address: common.BytesToAddress([]byte{0x11})},
+			{Address: common.BytesToAddress([]byte{0x11})},
-			&vm.Log{Address: common.BytesToAddress([]byte{0x01, 0x11})},
+			{Address: common.BytesToAddress([]byte{0x01, 0x11})},
 		},
 		TxHash:          common.BytesToHash([]byte{0x11, 0x11}),
 		ContractAddress: common.BytesToAddress([]byte{0x01, 0x11, 0x11}),
@@ -463,9 +462,9 @@ func TestBlockReceiptStorage(t *testing.T) {
 	receipt2 := &types.Receipt{
 		PostState:         []byte{0x02},
 		CumulativeGasUsed: big.NewInt(2),
-		Logs: vm.Logs{
+		Logs: []*types.Log{
-			&vm.Log{Address: common.BytesToAddress([]byte{0x22})},
+			{Address: common.BytesToAddress([]byte{0x22})},
-			&vm.Log{Address: common.BytesToAddress([]byte{0x02, 0x22})},
+			{Address: common.BytesToAddress([]byte{0x02, 0x22})},
 		},
 		TxHash:          common.BytesToHash([]byte{0x22, 0x22}),
 		ContractAddress: common.BytesToAddress([]byte{0x02, 0x22, 0x22}),
@@ -489,7 +488,7 @@ func TestBlockReceiptStorage(t *testing.T) {
 			rlpHave, _ := rlp.EncodeToBytes(rs[i])
 			rlpWant, _ := rlp.EncodeToBytes(receipts[i])
 
-			if bytes.Compare(rlpHave, rlpWant) != 0 {
+			if !bytes.Equal(rlpHave, rlpWant) {
 				t.Fatalf("receipt #%d: receipt mismatch: have %v, want %v", i, rs[i], receipts[i])
 			}
 		}
@@ -505,14 +504,14 @@ func TestMipmapBloom(t *testing.T) {
 	db, _ := ethdb.NewMemDatabase()
 
 	receipt1 := new(types.Receipt)
-	receipt1.Logs = vm.Logs{
+	receipt1.Logs = []*types.Log{
-		&vm.Log{Address: common.BytesToAddress([]byte("test"))},
+		{Address: common.BytesToAddress([]byte("test"))},
-		&vm.Log{Address: common.BytesToAddress([]byte("address"))},
+		{Address: common.BytesToAddress([]byte("address"))},
 	}
 	receipt2 := new(types.Receipt)
-	receipt2.Logs = vm.Logs{
+	receipt2.Logs = []*types.Log{
-		&vm.Log{Address: common.BytesToAddress([]byte("test"))},
+		{Address: common.BytesToAddress([]byte("test"))},
-		&vm.Log{Address: common.BytesToAddress([]byte("address1"))},
+		{Address: common.BytesToAddress([]byte("address1"))},
 	}
 
 	WriteMipmapBloom(db, 1, types.Receipts{receipt1})
@@ -528,14 +527,14 @@ func TestMipmapBloom(t *testing.T) {
 	// reset
 	db, _ = ethdb.NewMemDatabase()
 	receipt := new(types.Receipt)
-	receipt.Logs = vm.Logs{
+	receipt.Logs = []*types.Log{
-		&vm.Log{Address: common.BytesToAddress([]byte("test"))},
+		{Address: common.BytesToAddress([]byte("test"))},
 	}
 	WriteMipmapBloom(db, 999, types.Receipts{receipt1})
 
 	receipt = new(types.Receipt)
-	receipt.Logs = vm.Logs{
+	receipt.Logs = []*types.Log{
-		&vm.Log{Address: common.BytesToAddress([]byte("test 1"))},
+		{Address: common.BytesToAddress([]byte("test 1"))},
 	}
 	WriteMipmapBloom(db, 1000, types.Receipts{receipt})
 
@@ -568,17 +567,12 @@ func TestMipmapChain(t *testing.T) {
 		switch i {
 		case 1:
 			receipt := types.NewReceipt(nil, new(big.Int))
-			receipt.Logs = vm.Logs{
+			receipt.Logs = []*types.Log{{Address: addr, Topics: []common.Hash{hash1}}}
-				&vm.Log{
-					Address: addr,
-					Topics:  []common.Hash{hash1},
-				},
-			}
 			gen.AddUncheckedReceipt(receipt)
 			receipts = types.Receipts{receipt}
 		case 1000:
 			receipt := types.NewReceipt(nil, new(big.Int))
-			receipt.Logs = vm.Logs{&vm.Log{Address: addr2}}
+			receipt.Logs = []*types.Log{{Address: addr2}}
 			gen.AddUncheckedReceipt(receipt)
 			receipts = types.Receipts{receipt}
 

core/events.go

@@ -21,7 +21,6 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/core/vm"
 )
 
 // TxPreEvent is posted when a transaction enters the transaction pool.
@@ -32,7 +31,7 @@ type TxPostEvent struct{ Tx *types.Transaction }
 
 // PendingLogsEvent is posted pre mining and notifies of pending logs.
 type PendingLogsEvent struct {
-	Logs vm.Logs
+	Logs []*types.Log
 }
 
 // PendingStateEvent is posted pre mining and notifies of pending state changes.
@@ -45,18 +44,18 @@ type NewMinedBlockEvent struct{ Block *types.Block }
 type RemovedTransactionEvent struct{ Txs types.Transactions }
 
 // RemovedLogEvent is posted when a reorg happens
-type RemovedLogsEvent struct{ Logs vm.Logs }
+type RemovedLogsEvent struct{ Logs []*types.Log }
 
 // ChainSplit is posted when a new head is detected
 type ChainSplitEvent struct {
 	Block *types.Block
-	Logs  vm.Logs
+	Logs  []*types.Log
 }
 
 type ChainEvent struct {
 	Block *types.Block
 	Hash  common.Hash
-	Logs  vm.Logs
+	Logs  []*types.Log
 }
 
 type ChainSideEvent struct {
@@ -65,7 +64,7 @@ type ChainSideEvent struct {
 
 type PendingBlockEvent struct {
 	Block *types.Block
-	Logs  vm.Logs
+	Logs  []*types.Log
 }
 
 type ChainUncleEvent struct {

core/genesis.go

@@ -172,18 +172,12 @@ func WriteDefaultGenesisBlock(chainDb ethdb.Database) (*types.Block, error) {
 	return WriteGenesisBlock(chainDb, strings.NewReader(DefaultGenesisBlock()))
 }
 
-// WriteTestNetGenesisBlock assembles the Morden test network genesis block and
+// WriteTestNetGenesisBlock assembles the test network genesis block and
 // writes it - along with all associated state - into a chain database.
 func WriteTestNetGenesisBlock(chainDb ethdb.Database) (*types.Block, error) {
 	return WriteGenesisBlock(chainDb, strings.NewReader(DefaultTestnetGenesisBlock()))
 }
 
-// WriteOlympicGenesisBlock assembles the Olympic genesis block and writes it
-// along with all associated state into a chain database.
-func WriteOlympicGenesisBlock(db ethdb.Database) (*types.Block, error) {
-	return WriteGenesisBlock(db, strings.NewReader(OlympicGenesisBlock()))
-}
-
 // DefaultGenesisBlock assembles a JSON string representing the default Ethereum
 // genesis block.
 func DefaultGenesisBlock() string {
@@ -198,6 +192,8 @@ func DefaultGenesisBlock() string {
 	return string(blob)
 }
 
+// DefaultTestnetGenesisBlock assembles a JSON string representing the default Ethereum
+// test network genesis block.
 func DefaultTestnetGenesisBlock() string {
 	reader := bzip2.NewReader(base64.NewDecoder(base64.StdEncoding, strings.NewReader(defaultTestnetGenesisBlock)))
 	blob, err := ioutil.ReadAll(reader)
@@ -207,26 +203,12 @@ func DefaultTestnetGenesisBlock() string {
 	return string(blob)
 }
 
-// OlympicGenesisBlock assembles a JSON string representing the Olympic genesis
+// DevGenesisBlock assembles a JSON string representing a local dev genesis block.
-// block.
+func DevGenesisBlock() string {
-func OlympicGenesisBlock() string {
+	reader := bzip2.NewReader(base64.NewDecoder(base64.StdEncoding, strings.NewReader(defaultDevnetGenesisBlock)))
-	return fmt.Sprintf(`{
+	blob, err := ioutil.ReadAll(reader)
-		"nonce":"0x%x",
+	if err != nil {
-		"gasLimit":"0x%x",
+		panic(fmt.Sprintf("failed to load dev genesis: %v", err))
-		"difficulty":"0x%x",
+	}
-		"alloc": {
+	return string(blob)
-			"0000000000000000000000000000000000000001": {"balance": "1"},
-			"0000000000000000000000000000000000000002": {"balance": "1"},
-			"0000000000000000000000000000000000000003": {"balance": "1"},
-			"0000000000000000000000000000000000000004": {"balance": "1"},
-			"dbdbdb2cbd23b783741e8d7fcf51e459b497e4a6": {"balance": "1606938044258990275541962092341162602522202993782792835301376"},
-			"e4157b34ea9615cfbde6b4fda419828124b70c78": {"balance": "1606938044258990275541962092341162602522202993782792835301376"},
-			"b9c015918bdaba24b4ff057a92a3873d6eb201be": {"balance": "1606938044258990275541962092341162602522202993782792835301376"},
-			"6c386a4b26f73c802f34673f7248bb118f97424a": {"balance": "1606938044258990275541962092341162602522202993782792835301376"},
-			"cd2a3d9f938e13cd947ec05abc7fe734df8dd826": {"balance": "1606938044258990275541962092341162602522202993782792835301376"},
-			"2ef47100e0787b915105fd5e3f4ff6752079d5cb": {"balance": "1606938044258990275541962092341162602522202993782792835301376"},
-			"e6716f9544a56c530d868e4bfbacb172315bdead": {"balance": "1606938044258990275541962092341162602522202993782792835301376"},
-			"1a26338f0d905e295fccb71fa9ea849ffa12aaf4": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}
-		}
-	}`, types.EncodeNonce(42), params.GenesisGasLimit.Bytes(), params.GenesisDifficulty.Bytes())
 }

core/headerchain.go

@@ -339,7 +339,7 @@ func (hc *HeaderChain) InsertHeaderChain(chain []*types.Header, checkFreq int, w
 	if stats.ignored > 0 {
 		ignored = fmt.Sprintf(" (%d ignored)", stats.ignored)
 	}
-	glog.V(logger.Info).Infof("imported %d headers%s in %9v. #%v [%x… / %x…]", stats.processed, ignored, common.PrettyDuration(time.Since(start)), last.Number, first.Hash().Bytes()[:4], last.Hash().Bytes()[:4])
+	glog.V(logger.Info).Infof("imported %4d headers%s in %9v. #%v [%x… / %x…]", stats.processed, ignored, common.PrettyDuration(time.Since(start)), last.Number, first.Hash().Bytes()[:4], last.Hash().Bytes()[:4])
 
 	return 0, nil
 }

core/state/iterator.go

@@ -123,7 +123,7 @@ func (it *NodeIterator) step() error {
 	if !it.dataIt.Next() {
 		it.dataIt = nil
 	}
-	if bytes.Compare(account.CodeHash, emptyCodeHash) != 0 {
+	if !bytes.Equal(account.CodeHash, emptyCodeHash) {
 		it.codeHash = common.BytesToHash(account.CodeHash)
 		it.code, err = it.state.db.Get(account.CodeHash)
 		if err != nil {

core/state/iterator_test.go

@@ -41,7 +41,7 @@ func TestNodeIteratorCoverage(t *testing.T) {
 		}
 	}
 	// Cross check the hashes and the database itself
-	for hash, _ := range hashes {
+	for hash := range hashes {
 		if _, err := db.Get(hash.Bytes()); err != nil {
 			t.Errorf("failed to retrieve reported node %x: %v", hash, err)
 		}

core/state/managed_state_test.go

@@ -52,7 +52,7 @@ func TestRemove(t *testing.T) {
 	ms, account := create()
 
 	nn := make([]bool, 10)
-	for i, _ := range nn {
+	for i := range nn {
 		nn[i] = true
 	}
 	account.nonces = append(account.nonces, nn...)
@@ -68,7 +68,7 @@ func TestReuse(t *testing.T) {
 	ms, account := create()
 
 	nn := make([]bool, 10)
-	for i, _ := range nn {
+	for i := range nn {
 		nn[i] = true
 	}
 	account.nonces = append(account.nonces, nn...)
@@ -84,16 +84,16 @@ func TestReuse(t *testing.T) {
 func TestRemoteNonceChange(t *testing.T) {
 	ms, account := create()
 	nn := make([]bool, 10)
-	for i, _ := range nn {
+	for i := range nn {
 		nn[i] = true
 	}
 	account.nonces = append(account.nonces, nn...)
-	nonce := ms.NewNonce(addr)
+	ms.NewNonce(addr)
 
 	ms.StateDB.stateObjects[addr].data.Nonce = 200
-	nonce = ms.NewNonce(addr)
+	nonce := ms.NewNonce(addr)
 	if nonce != 200 {
-		t.Error("expected nonce after remote update to be", 201, "got", nonce)
+		t.Error("expected nonce after remote update to be", 200, "got", nonce)
 	}
 	ms.NewNonce(addr)
 	ms.NewNonce(addr)
@@ -101,7 +101,7 @@ func TestRemoteNonceChange(t *testing.T) {
 	ms.StateDB.stateObjects[addr].data.Nonce = 200
 	nonce = ms.NewNonce(addr)
 	if nonce != 204 {
-		t.Error("expected nonce after remote update to be", 201, "got", nonce)
+		t.Error("expected nonce after remote update to be", 204, "got", nonce)
 	}
 }
 

core/state/statedb.go

@@ -24,6 +24,7 @@ import (
 	"sync"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -71,7 +72,7 @@ type StateDB struct {
 
 	thash, bhash common.Hash
 	txIndex      int
-	logs         map[common.Hash]vm.Logs
+	logs         map[common.Hash][]*types.Log
 	logSize      uint
 
 	// Journal of state modifications. This is the backbone of
@@ -97,7 +98,7 @@ func New(root common.Hash, db ethdb.Database) (*StateDB, error) {
 		stateObjects:      make(map[common.Address]*StateObject),
 		stateObjectsDirty: make(map[common.Address]struct{}),
 		refund:            new(big.Int),
-		logs:              make(map[common.Hash]vm.Logs),
+		logs:              make(map[common.Hash][]*types.Log),
 	}, nil
 }
 
@@ -118,7 +119,7 @@ func (self *StateDB) New(root common.Hash) (*StateDB, error) {
 		stateObjects:      make(map[common.Address]*StateObject),
 		stateObjectsDirty: make(map[common.Address]struct{}),
 		refund:            new(big.Int),
-		logs:              make(map[common.Hash]vm.Logs),
+		logs:              make(map[common.Hash][]*types.Log),
 	}, nil
 }
 
@@ -138,7 +139,7 @@ func (self *StateDB) Reset(root common.Hash) error {
 	self.thash = common.Hash{}
 	self.bhash = common.Hash{}
 	self.txIndex = 0
-	self.logs = make(map[common.Hash]vm.Logs)
+	self.logs = make(map[common.Hash][]*types.Log)
 	self.logSize = 0
 	self.clearJournalAndRefund()
 
@@ -175,7 +176,7 @@ func (self *StateDB) StartRecord(thash, bhash common.Hash, ti int) {
 	self.txIndex = ti
 }
 
-func (self *StateDB) AddLog(log *vm.Log) {
+func (self *StateDB) AddLog(log *types.Log) {
 	self.journal = append(self.journal, addLogChange{txhash: self.thash})
 
 	log.TxHash = self.thash
@@ -186,12 +187,12 @@ func (self *StateDB) AddLog(log *vm.Log) {
 	self.logSize++
 }
 
-func (self *StateDB) GetLogs(hash common.Hash) vm.Logs {
+func (self *StateDB) GetLogs(hash common.Hash) []*types.Log {
 	return self.logs[hash]
 }
 
-func (self *StateDB) Logs() vm.Logs {
+func (self *StateDB) Logs() []*types.Log {
-	var logs vm.Logs
+	var logs []*types.Log
 	for _, lgs := range self.logs {
 		logs = append(logs, lgs...)
 	}
@@ -209,7 +210,7 @@ func (self *StateDB) Exist(addr common.Address) bool {
 	return self.GetStateObject(addr) != nil
 }
 
-// Empty returns whether the state object is either non-existant
+// Empty returns whether the state object is either non-existent
 // or empty according to the EIP161 specification (balance = nonce = code = 0)
 func (self *StateDB) Empty(addr common.Address) bool {
 	so := self.GetStateObject(addr)
@@ -474,16 +475,16 @@ func (self *StateDB) Copy() *StateDB {
 		stateObjects:      make(map[common.Address]*StateObject, len(self.stateObjectsDirty)),
 		stateObjectsDirty: make(map[common.Address]struct{}, len(self.stateObjectsDirty)),
 		refund:            new(big.Int).Set(self.refund),
-		logs:              make(map[common.Hash]vm.Logs, len(self.logs)),
+		logs:              make(map[common.Hash][]*types.Log, len(self.logs)),
 		logSize:           self.logSize,
 	}
 	// Copy the dirty states and logs
-	for addr, _ := range self.stateObjectsDirty {
+	for addr := range self.stateObjectsDirty {
 		state.stateObjects[addr] = self.stateObjects[addr].deepCopy(state, state.MarkStateObjectDirty)
 		state.stateObjectsDirty[addr] = struct{}{}
 	}
 	for hash, logs := range self.logs {
-		state.logs[hash] = make(vm.Logs, len(logs))
+		state.logs[hash] = make([]*types.Log, len(logs))
 		copy(state.logs[hash], logs)
 	}
 	return state
@@ -529,7 +530,7 @@ func (self *StateDB) GetRefund() *big.Int {
 // It is called in between transactions to get the root hash that
 // goes into transaction receipts.
 func (s *StateDB) IntermediateRoot(deleteEmptyObjects bool) common.Hash {
-	for addr, _ := range s.stateObjectsDirty {
+	for addr := range s.stateObjectsDirty {
 		stateObject := s.stateObjects[addr]
 		if stateObject.suicided || (deleteEmptyObjects && stateObject.empty()) {
 			s.deleteStateObject(stateObject)
@@ -552,7 +553,7 @@ func (s *StateDB) DeleteSuicides() {
 	// Reset refund so that any used-gas calculations can use this method.
 	s.clearJournalAndRefund()
 
-	for addr, _ := range s.stateObjectsDirty {
+	for addr := range s.stateObjectsDirty {
 		stateObject := s.stateObjects[addr]
 
 		// If the object has been removed by a suicide

core/state/statedb_test.go

@@ -29,7 +29,7 @@ import (
 	"testing/quick"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core/vm"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 )
 
@@ -221,7 +221,7 @@ func newTestAction(addr common.Address, r *rand.Rand) testAction {
 			fn: func(a testAction, s *StateDB) {
 				data := make([]byte, 2)
 				binary.BigEndian.PutUint16(data, uint16(a.args[0]))
-				s.AddLog(&vm.Log{Address: addr, Data: data})
+				s.AddLog(&types.Log{Address: addr, Data: data})
 			},
 			args: make([]int64, 1),
 		},

core/state/sync.go

@@ -21,7 +21,6 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/trie"
 )
@@ -32,7 +31,7 @@ import (
 type StateSync trie.TrieSync
 
 // NewStateSync create a new state trie download scheduler.
-func NewStateSync(root common.Hash, database ethdb.Database) *StateSync {
+func NewStateSync(root common.Hash, database trie.DatabaseReader) *StateSync {
 	var syncer *trie.TrieSync
 
 	callback := func(leaf []byte, parent common.Hash) error {
@@ -62,8 +61,8 @@ func (s *StateSync) Missing(max int) []common.Hash {
 // Process injects a batch of retrieved trie nodes data, returning if something
 // was committed to the database and also the index of an entry if processing of
 // it failed.
-func (s *StateSync) Process(list []trie.SyncResult) (bool, int, error) {
+func (s *StateSync) Process(list []trie.SyncResult, dbw trie.DatabaseWriter) (bool, int, error) {
-	return (*trie.TrieSync)(s).Process(list)
+	return (*trie.TrieSync)(s).Process(list, dbw)
 }
 
 // Pending returns the number of state entries currently pending for download.

core/state/sync_test.go

@@ -84,7 +84,7 @@ func checkStateAccounts(t *testing.T, db ethdb.Database, root common.Hash, accou
 		if nonce := state.GetNonce(acc.address); nonce != acc.nonce {
 			t.Errorf("account %d: nonce mismatch: have %v, want %v", i, nonce, acc.nonce)
 		}
-		if code := state.GetCode(acc.address); bytes.Compare(code, acc.code) != 0 {
+		if code := state.GetCode(acc.address); !bytes.Equal(code, acc.code) {
 			t.Errorf("account %d: code mismatch: have %x, want %x", i, code, acc.code)
 		}
 	}
@@ -138,7 +138,7 @@ func testIterativeStateSync(t *testing.T, batch int) {
 			}
 			results[i] = trie.SyncResult{Hash: hash, Data: data}
 		}
-		if _, index, err := sched.Process(results); err != nil {
+		if _, index, err := sched.Process(results, dstDb); err != nil {
 			t.Fatalf("failed to process result #%d: %v", index, err)
 		}
 		queue = append(queue[:0], sched.Missing(batch)...)
@@ -168,7 +168,7 @@ func TestIterativeDelayedStateSync(t *testing.T) {
 			}
 			results[i] = trie.SyncResult{Hash: hash, Data: data}
 		}
-		if _, index, err := sched.Process(results); err != nil {
+		if _, index, err := sched.Process(results, dstDb); err != nil {
 			t.Fatalf("failed to process result #%d: %v", index, err)
 		}
 		queue = append(queue[len(results):], sched.Missing(0)...)
@@ -198,7 +198,7 @@ func testIterativeRandomStateSync(t *testing.T, batch int) {
 	for len(queue) > 0 {
 		// Fetch all the queued nodes in a random order
 		results := make([]trie.SyncResult, 0, len(queue))
-		for hash, _ := range queue {
+		for hash := range queue {
 			data, err := srcDb.Get(hash.Bytes())
 			if err != nil {
 				t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
@@ -206,7 +206,7 @@ func testIterativeRandomStateSync(t *testing.T, batch int) {
 			results = append(results, trie.SyncResult{Hash: hash, Data: data})
 		}
 		// Feed the retrieved results back and queue new tasks
-		if _, index, err := sched.Process(results); err != nil {
+		if _, index, err := sched.Process(results, dstDb); err != nil {
 			t.Fatalf("failed to process result #%d: %v", index, err)
 		}
 		queue = make(map[common.Hash]struct{})
@@ -235,7 +235,7 @@ func TestIterativeRandomDelayedStateSync(t *testing.T) {
 	for len(queue) > 0 {
 		// Sync only half of the scheduled nodes, even those in random order
 		results := make([]trie.SyncResult, 0, len(queue)/2+1)
-		for hash, _ := range queue {
+		for hash := range queue {
 			delete(queue, hash)
 
 			data, err := srcDb.Get(hash.Bytes())
@@ -249,7 +249,7 @@ func TestIterativeRandomDelayedStateSync(t *testing.T) {
 			}
 		}
 		// Feed the retrieved results back and queue new tasks
-		if _, index, err := sched.Process(results); err != nil {
+		if _, index, err := sched.Process(results, dstDb); err != nil {
 			t.Fatalf("failed to process result #%d: %v", index, err)
 		}
 		for _, hash := range sched.Missing(0) {
@@ -283,7 +283,7 @@ func TestIncompleteStateSync(t *testing.T) {
 			results[i] = trie.SyncResult{Hash: hash, Data: data}
 		}
 		// Process each of the state nodes
-		if _, index, err := sched.Process(results); err != nil {
+		if _, index, err := sched.Process(results, dstDb); err != nil {
 			t.Fatalf("failed to process result #%d: %v", index, err)
 		}
 		for _, result := range results {
@@ -294,7 +294,7 @@ func TestIncompleteStateSync(t *testing.T) {
 			// Skim through the accounts and make sure the root hash is not a code node
 			codeHash := false
 			for _, acc := range srcAccounts {
-				if bytes.Compare(root.Bytes(), crypto.Sha3(acc.code)) == 0 {
+				if root == crypto.Keccak256Hash(acc.code) {
 					codeHash = true
 					break
 				}

core/state_processor.go

@@ -57,13 +57,13 @@ func NewStateProcessor(config *params.ChainConfig, bc *BlockChain) *StateProcess
 // Process returns the receipts and logs accumulated during the process and
 // returns the amount of gas that was used in the process. If any of the
 // transactions failed to execute due to insufficient gas it will return an error.
-func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, vm.Logs, *big.Int, error) {
+func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, []*types.Log, *big.Int, error) {
 	var (
 		receipts     types.Receipts
 		totalUsedGas = big.NewInt(0)
 		err          error
 		header       = block.Header()
-		allLogs      vm.Logs
+		allLogs      []*types.Log
 		gp           = new(GasPool).AddGas(block.GasLimit())
 	)
 	// Mutate the the block and state according to any hard-fork specs
@@ -74,12 +74,12 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
 	for i, tx := range block.Transactions() {
 		//fmt.Println("tx:", i)
 		statedb.StartRecord(tx.Hash(), block.Hash(), i)
-		receipt, logs, _, err := ApplyTransaction(p.config, p.bc, gp, statedb, header, tx, totalUsedGas, cfg)
+		receipt, _, err := ApplyTransaction(p.config, p.bc, gp, statedb, header, tx, totalUsedGas, cfg)
 		if err != nil {
 			return nil, nil, nil, err
 		}
 		receipts = append(receipts, receipt)
-		allLogs = append(allLogs, logs...)
+		allLogs = append(allLogs, receipt.Logs...)
 	}
 	AccumulateRewards(statedb, header, block.Uncles())
 
@@ -87,24 +87,23 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
 }
 
 // ApplyTransaction attempts to apply a transaction to the given state database
-// and uses the input parameters for its environment.
+// and uses the input parameters for its environment. It returns the receipt
-//
+// for the transaction, gas used and an error if the transaction failed,
-// ApplyTransactions returns the generated receipts and vm logs during the
+// indicating the block was invalid.
-// execution of the state transition phase.
+func ApplyTransaction(config *params.ChainConfig, bc *BlockChain, gp *GasPool, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *big.Int, cfg vm.Config) (*types.Receipt, *big.Int, error) {
-func ApplyTransaction(config *params.ChainConfig, bc *BlockChain, gp *GasPool, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *big.Int, cfg vm.Config) (*types.Receipt, vm.Logs, *big.Int, error) {
 	msg, err := tx.AsMessage(types.MakeSigner(config, header.Number))
 	if err != nil {
-		return nil, nil, nil, err
+		return nil, nil, err
 	}
 	// Create a new context to be used in the EVM environment
 	context := NewEVMContext(msg, header, bc)
 	// Create a new environment which holds all relevant information
 	// about the transaction and calling mechanisms.
-	vmenv := vm.NewEnvironment(context, statedb, config, vm.Config{})
+	vmenv := vm.NewEVM(context, statedb, config, vm.Config{})
 	// Apply the transaction to the current state (included in the env)
 	_, gas, err := ApplyMessage(vmenv, msg, gp)
 	if err != nil {
-		return nil, nil, nil, err
+		return nil, nil, err
 	}
 
 	// Update the state with pending changes
@@ -125,7 +124,7 @@ func ApplyTransaction(config *params.ChainConfig, bc *BlockChain, gp *GasPool, s
 
 	glog.V(logger.Debug).Infoln(receipt)
 
-	return receipt, receipt.Logs, gas, err
+	return receipt, gas, err
 }
 
 // AccumulateRewards credits the coinbase of the given block with the

core/state_transition.go

@@ -57,7 +57,7 @@ type StateTransition struct {
 	data          []byte
 	state         vm.StateDB
 
-	env *vm.Environment
+	env *vm.EVM
 }
 
 // Message represents a message sent to a contract.
@@ -106,7 +106,7 @@ func IntrinsicGas(data []byte, contractCreation, homestead bool) *big.Int {
 }
 
 // NewStateTransition initialises and returns a new state transition object.
-func NewStateTransition(env *vm.Environment, msg Message, gp *GasPool) *StateTransition {
+func NewStateTransition(env *vm.EVM, msg Message, gp *GasPool) *StateTransition {
 	return &StateTransition{
 		gp:         gp,
 		env:        env,
@@ -127,7 +127,7 @@ func NewStateTransition(env *vm.Environment, msg Message, gp *GasPool) *StateTra
 // the gas used (which includes gas refunds) and an error if it failed. An error always
 // indicates a core error meaning that the message would always fail for that particular
 // state and would never be accepted within a block.
-func ApplyMessage(env *vm.Environment, msg Message, gp *GasPool) ([]byte, *big.Int, error) {
+func ApplyMessage(env *vm.EVM, msg Message, gp *GasPool) ([]byte, *big.Int, error) {
 	st := NewStateTransition(env, msg, gp)
 
 	ret, _, gasUsed, err := st.TransitionDb()
@@ -159,7 +159,7 @@ func (self *StateTransition) to() vm.Account {
 
 func (self *StateTransition) useGas(amount *big.Int) error {
 	if self.gas.Cmp(amount) < 0 {
-		return vm.OutOfGasError
+		return vm.ErrOutOfGas
 	}
 	self.gas.Sub(self.gas, amount)
 
@@ -233,7 +233,7 @@ func (self *StateTransition) TransitionDb() (ret []byte, requiredGas, usedGas *b
 	)
 	if contractCreation {
 		ret, _, vmerr = vmenv.Create(sender, self.data, self.gas, self.value)
-		if homestead && err == vm.CodeStoreOutOfGasError {
+		if homestead && err == vm.ErrCodeStoreOutOfGas {
 			self.gas = Big0
 		}
 	} else {

core/tx_list.go

@@ -110,7 +110,7 @@ func (m *txSortedMap) Filter(filter func(*types.Transaction) bool) types.Transac
 	// If transactions were removed, the heap and cache are ruined
 	if len(removed) > 0 {
 		*m.index = make([]uint64, 0, len(m.items))
-		for nonce, _ := range m.items {
+		for nonce := range m.items {
 			*m.index = append(*m.index, nonce)
 		}
 		heap.Init(m.index)
@@ -216,7 +216,7 @@ func (m *txSortedMap) Flatten() types.Transactions {
 // txList is a "list" of transactions belonging to an account, sorted by account
 // nonce. The same type can be used both for storing contiguous transactions for
 // the executable/pending queue; and for storing gapped transactions for the non-
-// executable/future queue, with minor behavoiral changes.
+// executable/future queue, with minor behavioral changes.
 type txList struct {
 	strict  bool         // Whether nonces are strictly continuous or not
 	txs     *txSortedMap // Heap indexed sorted hash map of the transactions

core/tx_pool.go

@@ -321,7 +321,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction) error {
 // add validates a transaction and inserts it into the non-executable queue for
 // later pending promotion and execution.
 func (pool *TxPool) add(tx *types.Transaction) error {
-	// If the transaction is alreayd known, discard it
+	// If the transaction is already known, discard it
 	hash := tx.Hash()
 	if pool.all[hash] != nil {
 		return fmt.Errorf("Known transaction: %x", hash[:4])
@@ -609,7 +609,7 @@ func (pool *TxPool) promoteExecutables(state *state.StateDB) {
 	if queued > maxQueuedInTotal {
 		// Sort all accounts with queued transactions by heartbeat
 		addresses := make(addresssByHeartbeat, 0, len(pool.queue))
-		for addr, _ := range pool.queue {
+		for addr := range pool.queue {
 			addresses = append(addresses, addressByHeartbeat{addr, pool.beats[addr]})
 		}
 		sort.Sort(addresses)

core/tx_pool_test.go

@@ -32,7 +32,7 @@ import (
 )
 
 func transaction(nonce uint64, gaslimit *big.Int, key *ecdsa.PrivateKey) *types.Transaction {
-	tx, _ := types.NewTransaction(nonce, common.Address{}, big.NewInt(100), gaslimit, big.NewInt(1), nil).SignECDSA(types.HomesteadSigner{}, key)
+	tx, _ := types.SignTx(types.NewTransaction(nonce, common.Address{}, big.NewInt(100), gaslimit, big.NewInt(1), nil), types.HomesteadSigner{}, key)
 	return tx
 }
 
@@ -238,7 +238,7 @@ func TestRemoveTx(t *testing.T) {
 func TestNegativeValue(t *testing.T) {
 	pool, key := setupTxPool()
 
-	tx, _ := types.NewTransaction(0, common.Address{}, big.NewInt(-1), big.NewInt(100), big.NewInt(1), nil).SignECDSA(types.HomesteadSigner{}, key)
+	tx, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(-1), big.NewInt(100), big.NewInt(1), nil), types.HomesteadSigner{}, key)
 	from, _ := deriveSender(tx)
 	currentState, _ := pool.currentState()
 	currentState.AddBalance(from, big.NewInt(1))
@@ -287,9 +287,9 @@ func TestTransactionDoubleNonce(t *testing.T) {
 	resetState()
 
 	signer := types.HomesteadSigner{}
-	tx1, _ := types.NewTransaction(0, common.Address{}, big.NewInt(100), big.NewInt(100000), big.NewInt(1), nil).SignECDSA(signer, key)
+	tx1, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(100), big.NewInt(100000), big.NewInt(1), nil), signer, key)
-	tx2, _ := types.NewTransaction(0, common.Address{}, big.NewInt(100), big.NewInt(1000000), big.NewInt(2), nil).SignECDSA(signer, key)
+	tx2, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(100), big.NewInt(1000000), big.NewInt(2), nil), signer, key)
-	tx3, _ := types.NewTransaction(0, common.Address{}, big.NewInt(100), big.NewInt(1000000), big.NewInt(1), nil).SignECDSA(signer, key)
+	tx3, _ := types.SignTx(types.NewTransaction(0, common.Address{}, big.NewInt(100), big.NewInt(1000000), big.NewInt(1), nil), signer, key)
 
 	// Add the first two transaction, ensure higher priced stays only
 	if err := pool.add(tx1); err != nil {

core/types.go

@@ -58,5 +58,5 @@ type HeaderValidator interface {
 // of gas used in the process and return an error if any of the internal rules
 // failed.
 type Processor interface {
-	Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, vm.Logs, *big.Int, error)
+	Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, []*types.Log, *big.Int, error)
 }

core/types/block.go

@@ -423,9 +423,9 @@ func CalcUncleHash(uncles []*Header) common.Hash {
 
 // WithMiningResult returns a new block with the data from b
 // where nonce and mix digest are set to the provided values.
-func (b *Block) WithMiningResult(nonce uint64, mixDigest common.Hash) *Block {
+func (b *Block) WithMiningResult(nonce BlockNonce, mixDigest common.Hash) *Block {
 	cpy := *b.header
-	binary.BigEndian.PutUint64(cpy.Nonce[:], nonce)
+	cpy.Nonce = nonce
 	cpy.MixDigest = mixDigest
 	return &Block{
 		header:       &cpy,

core/types/block_test.go

@@ -53,7 +53,7 @@ func TestBlockEncoding(t *testing.T) {
 
 	tx1 := NewTransaction(0, common.HexToAddress("095e7baea6a6c7c4c2dfeb977efac326af552d87"), big.NewInt(10), big.NewInt(50000), big.NewInt(10), nil)
 
-	tx1, _ = tx1.WithSignature(HomesteadSigner{}, common.Hex2Bytes("9bea4c4daac7c7c52e093e6a4c35dbbcf8856f1af7b059ba20253e70848d094f8a8fae537ce25ed8cb5af9adac3f141af69bd515bd2ba031522df09b97dd72b11b"))
+	tx1, _ = tx1.WithSignature(HomesteadSigner{}, common.Hex2Bytes("9bea4c4daac7c7c52e093e6a4c35dbbcf8856f1af7b059ba20253e70848d094f8a8fae537ce25ed8cb5af9adac3f141af69bd515bd2ba031522df09b97dd72b100"))
 	fmt.Println(block.Transactions()[0].Hash())
 	fmt.Println(tx1.data)
 	fmt.Println(tx1.Hash())

core/types/bloom9.go

@@ -22,7 +22,6 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
-	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
 )
 
@@ -95,17 +94,11 @@ func CreateBloom(receipts Receipts) Bloom {
 	return BytesToBloom(bin.Bytes())
 }
 
-func LogsBloom(logs vm.Logs) *big.Int {
+func LogsBloom(logs []*Log) *big.Int {
 	bin := new(big.Int)
 	for _, log := range logs {
-		data := make([]common.Hash, len(log.Topics))
 		bin.Or(bin, bloom9(log.Address.Bytes()))
-
+		for _, b := range log.Topics {
-		for i, topic := range log.Topics {
-			data[i] = topic
-		}
-
-		for _, b := range data {
 			bin.Or(bin, bloom9(b[:]))
 		}
 	}

core/types/log.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package vm
+package types
 
 import (
 	"encoding/json"
@@ -79,10 +79,6 @@ type jsonLog struct {
 	Removed     bool            `json:"removed"`
 }
 
-func NewLog(address common.Address, topics []common.Hash, data []byte, number uint64) *Log {
-	return &Log{Address: address, Topics: topics, Data: data, BlockNumber: number}
-}
-
 // EncodeRLP implements rlp.Encoder.
 func (l *Log) EncodeRLP(w io.Writer) error {
 	return rlp.Encode(w, rlpLog{Address: l.Address, Topics: l.Topics, Data: l.Data})
@@ -150,8 +146,6 @@ func (l *Log) UnmarshalJSON(input []byte) error {
 	return nil
 }
 
-type Logs []*Log
-
 // LogForStorage is a wrapper around a Log that flattens and parses the entire content of
 // a log including non-consensus fields.
 type LogForStorage Log

core/types/log_test.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package vm
+package types
 
 import (
 	"encoding/json"

core/types/receipt.go

@@ -25,7 +25,6 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
-	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
@@ -40,7 +39,7 @@ type Receipt struct {
 	PostState         []byte
 	CumulativeGasUsed *big.Int
 	Bloom             Bloom
-	Logs              vm.Logs
+	Logs              []*Log
 
 	// Implementation fields (don't reorder!)
 	TxHash          common.Hash
@@ -52,7 +51,7 @@ type jsonReceipt struct {
 	PostState         *common.Hash    `json:"root"`
 	CumulativeGasUsed *hexutil.Big    `json:"cumulativeGasUsed"`
 	Bloom             *Bloom          `json:"logsBloom"`
-	Logs              *vm.Logs        `json:"logs"`
+	Logs              []*Log          `json:"logs"`
 	TxHash            *common.Hash    `json:"transactionHash"`
 	ContractAddress   *common.Address `json:"contractAddress"`
 	GasUsed           *hexutil.Big    `json:"gasUsed"`
@@ -76,7 +75,7 @@ func (r *Receipt) DecodeRLP(s *rlp.Stream) error {
 		PostState         []byte
 		CumulativeGasUsed *big.Int
 		Bloom             Bloom
-		Logs              vm.Logs
+		Logs              []*Log
 	}
 	if err := s.Decode(&receipt); err != nil {
 		return err
@@ -93,7 +92,7 @@ func (r *Receipt) MarshalJSON() ([]byte, error) {
 		PostState:         &root,
 		CumulativeGasUsed: (*hexutil.Big)(r.CumulativeGasUsed),
 		Bloom:             &r.Bloom,
-		Logs:              &r.Logs,
+		Logs:              r.Logs,
 		TxHash:            &r.TxHash,
 		ContractAddress:   &r.ContractAddress,
 		GasUsed:           (*hexutil.Big)(r.GasUsed),
@@ -120,7 +119,7 @@ func (r *Receipt) UnmarshalJSON(input []byte) error {
 		PostState:         (*dec.PostState)[:],
 		CumulativeGasUsed: (*big.Int)(dec.CumulativeGasUsed),
 		Bloom:             *dec.Bloom,
-		Logs:              *dec.Logs,
+		Logs:              dec.Logs,
 		TxHash:            *dec.TxHash,
 		GasUsed:           (*big.Int)(dec.GasUsed),
 	}
@@ -142,9 +141,9 @@ type ReceiptForStorage Receipt
 // EncodeRLP implements rlp.Encoder, and flattens all content fields of a receipt
 // into an RLP stream.
 func (r *ReceiptForStorage) EncodeRLP(w io.Writer) error {
-	logs := make([]*vm.LogForStorage, len(r.Logs))
+	logs := make([]*LogForStorage, len(r.Logs))
 	for i, log := range r.Logs {
-		logs[i] = (*vm.LogForStorage)(log)
+		logs[i] = (*LogForStorage)(log)
 	}
 	return rlp.Encode(w, []interface{}{r.PostState, r.CumulativeGasUsed, r.Bloom, r.TxHash, r.ContractAddress, logs, r.GasUsed})
 }
@@ -158,7 +157,7 @@ func (r *ReceiptForStorage) DecodeRLP(s *rlp.Stream) error {
 		Bloom             Bloom
 		TxHash            common.Hash
 		ContractAddress   common.Address
-		Logs              []*vm.LogForStorage
+		Logs              []*LogForStorage
 		GasUsed           *big.Int
 	}
 	if err := s.Decode(&receipt); err != nil {
@@ -166,9 +165,9 @@ func (r *ReceiptForStorage) DecodeRLP(s *rlp.Stream) error {
 	}
 	// Assign the consensus fields
 	r.PostState, r.CumulativeGasUsed, r.Bloom = receipt.PostState, receipt.CumulativeGasUsed, receipt.Bloom
-	r.Logs = make(vm.Logs, len(receipt.Logs))
+	r.Logs = make([]*Log, len(receipt.Logs))
 	for i, log := range receipt.Logs {
-		r.Logs[i] = (*vm.Log)(log)
+		r.Logs[i] = (*Log)(log)
 	}
 	// Assign the implementation fields
 	r.TxHash, r.ContractAddress, r.GasUsed = receipt.TxHash, receipt.ContractAddress, receipt.GasUsed

core/types/transaction.go

@@ -18,7 +18,6 @@ package types
 
 import (
 	"container/heap"
-	"crypto/ecdsa"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -199,9 +198,9 @@ func (tx *Transaction) UnmarshalJSON(input []byte) error {
 
 	var V byte
 	if isProtectedV((*big.Int)(dec.V)) {
-		V = normaliseV(NewEIP155Signer(deriveChainId((*big.Int)(dec.V))), (*big.Int)(dec.V))
+		V = byte((new(big.Int).Sub((*big.Int)(dec.V), deriveChainId((*big.Int)(dec.V))).Uint64()) - 35)
 	} else {
-		V = byte(((*big.Int)(dec.V)).Uint64())
+		V = byte(((*big.Int)(dec.V)).Uint64() - 27)
 	}
 	if !crypto.ValidateSignatureValues(V, (*big.Int)(dec.R), (*big.Int)(dec.S), false) {
 		return ErrInvalidSig
@@ -272,51 +271,6 @@ func (tx *Transaction) Size() common.StorageSize {
 	return common.StorageSize(c)
 }
 
-/*
-// From returns the address derived from the signature (V, R, S) using secp256k1
-// elliptic curve and an error if it failed deriving or upon an incorrect
-// signature.
-//
-// From Uses the homestead consensus rules to determine whether the signature is
-// valid.
-//
-// From caches the address, allowing it to be used regardless of
-// Frontier / Homestead. however, the first time called it runs
-// signature validations, so we need two versions. This makes it
-// easier to ensure backwards compatibility of things like package rpc
-// where eth_getblockbynumber uses tx.From() and needs to work for
-// both txs before and after the first homestead block. Signatures
-// valid in homestead are a subset of valid ones in Frontier)
-func (tx *Transaction) From() (common.Address, error) {
-	if tx.signer == nil {
-		return common.Address{}, errNoSigner
-	}
-
-	if from := tx.from.Load(); from != nil {
-		return from.(common.Address), nil
-	}
-
-	pubkey, err := tx.signer.PublicKey(tx)
-	if err != nil {
-		return common.Address{}, err
-	}
-	var addr common.Address
-	copy(addr[:], crypto.Keccak256(pubkey[1:])[12:])
-	tx.from.Store(addr)
-	return addr, nil
-}
-
-// SignatureValues returns the ECDSA signature values contained in the transaction.
-func (tx *Transaction) SignatureValues() (v byte, r *big.Int, s *big.Int, err error) {
-	if tx.signer == nil {
-		return 0, nil, nil,errNoSigner
-	}
-
-	return normaliseV(tx.signer, tx.data.V), new(big.Int).Set(tx.data.R),new(big.Int).Set(tx.data.S), nil
-}
-
-*/
-
 // AsMessage returns the transaction as a core.Message.
 //
 // AsMessage requires a signer to derive the sender.
@@ -338,14 +292,6 @@ func (tx *Transaction) AsMessage(s Signer) (Message, error) {
 	return msg, err
 }
 
-// SignECDSA signs the transaction using the given signer and private key
-//
-// XXX This only makes for a nice API: NewTx(...).SignECDSA(signer, prv). Should
-// we keep this?
-func (tx *Transaction) SignECDSA(signer Signer, prv *ecdsa.PrivateKey) (*Transaction, error) {
-	return signer.SignECDSA(tx, prv)
-}
-
 // WithSignature returns a new transaction with the given signature.
 // This signature needs to be formatted as described in the yellow paper (v+27).
 func (tx *Transaction) WithSignature(signer Signer, sig []byte) (*Transaction, error) {

core/types/transaction_signing.go

@@ -50,10 +50,10 @@ func MakeSigner(config *params.ChainConfig, blockNumber *big.Int) Signer {
 	return signer
 }
 
-// SignECDSA signs the transaction using the given signer and private key
+// SignTx signs the transaction using the given signer and private key
-func SignECDSA(s Signer, tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error) {
+func SignTx(tx *Transaction, s Signer, prv *ecdsa.PrivateKey) (*Transaction, error) {
 	h := s.Hash(tx)
-	sig, err := crypto.SignEthereum(h[:], prv)
+	sig, err := crypto.Sign(h[:], prv)
 	if err != nil {
 		return nil, err
 	}
@@ -91,19 +91,13 @@ func Sender(signer Signer, tx *Transaction) (common.Address, error) {
 	return addr, nil
 }
 
-// SignatureValues returns the ECDSA signature values contained in the transaction.
-func SignatureValues(signer Signer, tx *Transaction) (v byte, r *big.Int, s *big.Int) {
-	return normaliseV(signer, tx.data.V), new(big.Int).Set(tx.data.R), new(big.Int).Set(tx.data.S)
-}
-
 type Signer interface {
 	// Hash returns the rlp encoded hash for signatures
 	Hash(tx *Transaction) common.Hash
 	// PubilcKey returns the public key derived from the signature
 	PublicKey(tx *Transaction) ([]byte, error)
-	// SignECDSA signs the transaction with the given and returns a copy of the tx
+	// WithSignature returns a copy of the transaction with the given signature.
-	SignECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error)
+	// The signature must be encoded in [R || S || V] format where V is 0 or 1.
-	// WithSignature returns a copy of the transaction with the given signature
 	WithSignature(tx *Transaction, sig []byte) (*Transaction, error)
 	// Checks for equality on the signers
 	Equal(Signer) bool
@@ -129,10 +123,6 @@ func (s EIP155Signer) Equal(s2 Signer) bool {
 	return ok && eip155.chainId.Cmp(s.chainId) == 0
 }
 
-func (s EIP155Signer) SignECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error) {
-	return SignECDSA(s, tx, prv)
-}
-
 func (s EIP155Signer) PublicKey(tx *Transaction) ([]byte, error) {
 	// if the transaction is not protected fall back to homestead signer
 	if !tx.Protected() {
@@ -143,17 +133,16 @@ func (s EIP155Signer) PublicKey(tx *Transaction) ([]byte, error) {
 		return nil, ErrInvalidChainId
 	}
 
-	V := normaliseV(s, tx.data.V)
+	V := byte(new(big.Int).Sub(tx.data.V, s.chainIdMul).Uint64() - 35)
 	if !crypto.ValidateSignatureValues(V, tx.data.R, tx.data.S, true) {
 		return nil, ErrInvalidSig
 	}
-
 	// encode the signature in uncompressed format
 	R, S := tx.data.R.Bytes(), tx.data.S.Bytes()
 	sig := make([]byte, 65)
 	copy(sig[32-len(R):32], R)
 	copy(sig[64-len(S):64], S)
-	sig[64] = V - 27
+	sig[64] = V
 
 	// recover the public key from the signature
 	hash := s.Hash(tx)
@@ -167,8 +156,8 @@ func (s EIP155Signer) PublicKey(tx *Transaction) ([]byte, error) {
 	return pub, nil
 }
 
-// WithSignature returns a new transaction with the given signature.
+// WithSignature returns a new transaction with the given signature. This signature
-// This signature needs to be formatted as described in the yellow paper (v+27).
+// needs to be in the [R || S || V] format where V is 0 or 1.
 func (s EIP155Signer) WithSignature(tx *Transaction, sig []byte) (*Transaction, error) {
 	if len(sig) != 65 {
 		panic(fmt.Sprintf("wrong size for snature: got %d, want 65", len(sig)))
@@ -179,7 +168,7 @@ func (s EIP155Signer) WithSignature(tx *Transaction, sig []byte) (*Transaction,
 	cpy.data.S = new(big.Int).SetBytes(sig[32:64])
 	cpy.data.V = new(big.Int).SetBytes([]byte{sig[64]})
 	if s.chainId.BitLen() > 0 {
-		cpy.data.V = big.NewInt(int64(sig[64] - 27 + 35))
+		cpy.data.V = big.NewInt(int64(sig[64] + 35))
 		cpy.data.V.Add(cpy.data.V, s.chainIdMul)
 	}
 	return cpy, nil
@@ -199,15 +188,6 @@ func (s EIP155Signer) Hash(tx *Transaction) common.Hash {
 	})
 }
 
-func (s EIP155Signer) SigECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error) {
-	h := s.Hash(tx)
-	sig, err := crypto.SignEthereum(h[:], prv)
-	if err != nil {
-		return nil, err
-	}
-	return s.WithSignature(tx, sig)
-}
-
 // HomesteadTransaction implements TransactionInterface using the
 // homestead rules.
 type HomesteadSigner struct{ FrontierSigner }
@@ -217,8 +197,8 @@ func (s HomesteadSigner) Equal(s2 Signer) bool {
 	return ok
 }
 
-// WithSignature returns a new transaction with the given snature.
+// WithSignature returns a new transaction with the given signature. This signature
-// This snature needs to be formatted as described in the yellow paper (v+27).
+// needs to be in the [R || S || V] format where V is 0 or 1.
 func (hs HomesteadSigner) WithSignature(tx *Transaction, sig []byte) (*Transaction, error) {
 	if len(sig) != 65 {
 		panic(fmt.Sprintf("wrong size for snature: got %d, want 65", len(sig)))
@@ -226,24 +206,15 @@ func (hs HomesteadSigner) WithSignature(tx *Transaction, sig []byte) (*Transacti
 	cpy := &Transaction{data: tx.data}
 	cpy.data.R = new(big.Int).SetBytes(sig[:32])
 	cpy.data.S = new(big.Int).SetBytes(sig[32:64])
-	cpy.data.V = new(big.Int).SetBytes([]byte{sig[64]})
+	cpy.data.V = new(big.Int).SetBytes([]byte{sig[64] + 27})
 	return cpy, nil
 }
 
-func (hs HomesteadSigner) SignECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error) {
-	h := hs.Hash(tx)
-	sig, err := crypto.SignEthereum(h[:], prv)
-	if err != nil {
-		return nil, err
-	}
-	return hs.WithSignature(tx, sig)
-}
-
 func (hs HomesteadSigner) PublicKey(tx *Transaction) ([]byte, error) {
 	if tx.data.V.BitLen() > 8 {
 		return nil, ErrInvalidSig
 	}
-	V := byte(tx.data.V.Uint64())
+	V := byte(tx.data.V.Uint64() - 27)
 	if !crypto.ValidateSignatureValues(V, tx.data.R, tx.data.S, true) {
 		return nil, ErrInvalidSig
 	}
@@ -252,7 +223,7 @@ func (hs HomesteadSigner) PublicKey(tx *Transaction) ([]byte, error) {
 	sig := make([]byte, 65)
 	copy(sig[32-len(r):32], r)
 	copy(sig[64-len(s):64], s)
-	sig[64] = V - 27
+	sig[64] = V
 
 	// recover the public key from the snature
 	hash := hs.Hash(tx)
@@ -273,8 +244,8 @@ func (s FrontierSigner) Equal(s2 Signer) bool {
 	return ok
 }
 
-// WithSignature returns a new transaction with the given snature.
+// WithSignature returns a new transaction with the given signature. This signature
-// This snature needs to be formatted as described in the yellow paper (v+27).
+// needs to be in the [R || S || V] format where V is 0 or 1.
 func (fs FrontierSigner) WithSignature(tx *Transaction, sig []byte) (*Transaction, error) {
 	if len(sig) != 65 {
 		panic(fmt.Sprintf("wrong size for snature: got %d, want 65", len(sig)))
@@ -282,19 +253,10 @@ func (fs FrontierSigner) WithSignature(tx *Transaction, sig []byte) (*Transactio
 	cpy := &Transaction{data: tx.data}
 	cpy.data.R = new(big.Int).SetBytes(sig[:32])
 	cpy.data.S = new(big.Int).SetBytes(sig[32:64])
-	cpy.data.V = new(big.Int).SetBytes([]byte{sig[64]})
+	cpy.data.V = new(big.Int).SetBytes([]byte{sig[64] + 27})
 	return cpy, nil
 }
 
-func (fs FrontierSigner) SignECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error) {
-	h := fs.Hash(tx)
-	sig, err := crypto.SignEthereum(h[:], prv)
-	if err != nil {
-		return nil, err
-	}
-	return fs.WithSignature(tx, sig)
-}
-
 // Hash returns the hash to be sned by the sender.
 // It does not uniquely identify the transaction.
 func (fs FrontierSigner) Hash(tx *Transaction) common.Hash {
@@ -313,7 +275,7 @@ func (fs FrontierSigner) PublicKey(tx *Transaction) ([]byte, error) {
 		return nil, ErrInvalidSig
 	}
 
-	V := byte(tx.data.V.Uint64())
+	V := byte(tx.data.V.Uint64() - 27)
 	if !crypto.ValidateSignatureValues(V, tx.data.R, tx.data.S, false) {
 		return nil, ErrInvalidSig
 	}
@@ -322,7 +284,7 @@ func (fs FrontierSigner) PublicKey(tx *Transaction) ([]byte, error) {
 	sig := make([]byte, 65)
 	copy(sig[32-len(r):32], r)
 	copy(sig[64-len(s):64], s)
-	sig[64] = V - 27
+	sig[64] = V
 
 	// recover the public key from the snature
 	hash := fs.Hash(tx)
@@ -336,18 +298,6 @@ func (fs FrontierSigner) PublicKey(tx *Transaction) ([]byte, error) {
 	return pub, nil
 }
 
-// normaliseV returns the Ethereum version of the V parameter
-func normaliseV(s Signer, v *big.Int) byte {
-	if s, ok := s.(EIP155Signer); ok {
-		stdV := v.BitLen() <= 8 && (v.Uint64() == 27 || v.Uint64() == 28)
-		if s.chainId.BitLen() > 0 && !stdV {
-			nv := byte((new(big.Int).Sub(v, s.chainIdMul).Uint64()) - 35 + 27)
-			return nv
-		}
-	}
-	return byte(v.Uint64())
-}
-
 // deriveChainId derives the chain id from the given v parameter
 func deriveChainId(v *big.Int) *big.Int {
 	if v.BitLen() <= 64 {

core/types/transaction_signing_test.go

@@ -30,7 +30,7 @@ func TestEIP155Signing(t *testing.T) {
 	addr := crypto.PubkeyToAddress(key.PublicKey)
 
 	signer := NewEIP155Signer(big.NewInt(18))
-	tx, err := NewTransaction(0, addr, new(big.Int), new(big.Int), new(big.Int), nil).SignECDSA(signer, key)
+	tx, err := SignTx(NewTransaction(0, addr, new(big.Int), new(big.Int), new(big.Int), nil), signer, key)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -49,7 +49,7 @@ func TestEIP155ChainId(t *testing.T) {
 	addr := crypto.PubkeyToAddress(key.PublicKey)
 
 	signer := NewEIP155Signer(big.NewInt(18))
-	tx, err := NewTransaction(0, addr, new(big.Int), new(big.Int), new(big.Int), nil).SignECDSA(signer, key)
+	tx, err := SignTx(NewTransaction(0, addr, new(big.Int), new(big.Int), new(big.Int), nil), signer, key)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -62,7 +62,7 @@ func TestEIP155ChainId(t *testing.T) {
 	}
 
 	tx = NewTransaction(0, addr, new(big.Int), new(big.Int), new(big.Int), nil)
-	tx, err = tx.SignECDSA(HomesteadSigner{}, key)
+	tx, err = SignTx(tx, HomesteadSigner{}, key)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -121,7 +121,7 @@ func TestChainId(t *testing.T) {
 	tx := NewTransaction(0, common.Address{}, new(big.Int), new(big.Int), new(big.Int), nil)
 
 	var err error
-	tx, err = tx.SignECDSA(NewEIP155Signer(big.NewInt(1)), key)
+	tx, err = SignTx(tx, NewEIP155Signer(big.NewInt(1)), key)
 	if err != nil {
 		t.Fatal(err)
 	}

core/types/transaction_test.go

@@ -47,7 +47,7 @@ var (
 		common.FromHex("5544"),
 	).WithSignature(
 		HomesteadSigner{},
-		common.Hex2Bytes("98ff921201554726367d2be8c804a7ff89ccf285ebc57dff8ae4c44b9c19ac4a8887321be575c8095f789dd4c743dfe42c1820f9231f98a962b210e3ac2452a31c"),
+		common.Hex2Bytes("98ff921201554726367d2be8c804a7ff89ccf285ebc57dff8ae4c44b9c19ac4a8887321be575c8095f789dd4c743dfe42c1820f9231f98a962b210e3ac2452a301"),
 	)
 )
 
@@ -138,7 +138,7 @@ func TestTransactionPriceNonceSort(t *testing.T) {
 	for start, key := range keys {
 		addr := crypto.PubkeyToAddress(key.PublicKey)
 		for i := 0; i < 25; i++ {
-			tx, _ := NewTransaction(uint64(start+i), common.Address{}, big.NewInt(100), big.NewInt(100), big.NewInt(int64(start+i)), nil).SignECDSA(signer, key)
+			tx, _ := SignTx(NewTransaction(uint64(start+i), common.Address{}, big.NewInt(100), big.NewInt(100), big.NewInt(int64(start+i)), nil), signer, key)
 			groups[addr] = append(groups[addr], tx)
 		}
 	}

core/vm/contracts.go

@@ -26,84 +26,59 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 )
 
-// PrecompiledAccount represents a native ethereum contract
+// Precompiled contract is the basic interface for native Go contracts. The implementation
-type PrecompiledAccount struct {
+// requires a deterministic gas count based on the input size of the Run method of the
-	Gas func(l int) *big.Int
+// contract.
-	fn  func(in []byte) []byte
+type PrecompiledContract interface {
-}
+	RequiredGas(inputSize int) *big.Int // RequiredPrice calculates the contract gas use
-
+	Run(input []byte) []byte            // Run runs the precompiled contract
-// Call calls the native function
-func (self PrecompiledAccount) Call(in []byte) []byte {
-	return self.fn(in)
 }
 
 // Precompiled contains the default set of ethereum contracts
-var Precompiled = PrecompiledContracts()
+var PrecompiledContracts = map[common.Address]PrecompiledContract{
+	common.BytesToAddress([]byte{1}): &ecrecover{},
+	common.BytesToAddress([]byte{2}): &sha256{},
+	common.BytesToAddress([]byte{3}): &ripemd160{},
+	common.BytesToAddress([]byte{4}): &dataCopy{},
+}
 
-// PrecompiledContracts returns the default set of precompiled ethereum
+// RunPrecompile runs and evaluate the output of a precompiled contract defined in contracts.go
-// contracts defined by the ethereum yellow paper.
+func RunPrecompiledContract(p PrecompiledContract, input []byte, contract *Contract) (ret []byte, err error) {
-func PrecompiledContracts() map[string]*PrecompiledAccount {
+	gas := p.RequiredGas(len(input))
-	return map[string]*PrecompiledAccount{
+	if contract.UseGas(gas) {
-		// ECRECOVER
+		ret = p.Run(input)
-		string(common.LeftPadBytes([]byte{1}, 20)): &PrecompiledAccount{func(l int) *big.Int {
-			return params.EcrecoverGas
-		}, ecrecoverFunc},
 
-		// SHA256
+		return ret, nil
-		string(common.LeftPadBytes([]byte{2}, 20)): &PrecompiledAccount{func(l int) *big.Int {
+	} else {
-			n := big.NewInt(int64(l+31) / 32)
+		return nil, ErrOutOfGas
-			n.Mul(n, params.Sha256WordGas)
-			return n.Add(n, params.Sha256Gas)
-		}, sha256Func},
-
-		// RIPEMD160
-		string(common.LeftPadBytes([]byte{3}, 20)): &PrecompiledAccount{func(l int) *big.Int {
-			n := big.NewInt(int64(l+31) / 32)
-			n.Mul(n, params.Ripemd160WordGas)
-			return n.Add(n, params.Ripemd160Gas)
-		}, ripemd160Func},
-
-		string(common.LeftPadBytes([]byte{4}, 20)): &PrecompiledAccount{func(l int) *big.Int {
-			n := big.NewInt(int64(l+31) / 32)
-			n.Mul(n, params.IdentityWordGas)
-
-			return n.Add(n, params.IdentityGas)
-		}, memCpy},
 	}
 }
 
-func sha256Func(in []byte) []byte {
+// ECRECOVER implemented as a native contract
-	return crypto.Sha256(in)
+type ecrecover struct{}
+
+func (c *ecrecover) RequiredGas(inputSize int) *big.Int {
+	return params.EcrecoverGas
 }
 
-func ripemd160Func(in []byte) []byte {
+func (c *ecrecover) Run(in []byte) []byte {
-	return common.LeftPadBytes(crypto.Ripemd160(in), 32)
+	const ecRecoverInputLength = 128
-}
 
-const ecRecoverInputLength = 128
+	in = common.RightPadBytes(in, ecRecoverInputLength)
-
-func ecrecoverFunc(in []byte) []byte {
-	in = common.RightPadBytes(in, 128)
 	// "in" is (hash, v, r, s), each 32 bytes
 	// but for ecrecover we want (r, s, v)
 
 	r := common.BytesToBig(in[64:96])
 	s := common.BytesToBig(in[96:128])
-	// Treat V as a 256bit integer
+	v := in[63] - 27
-	vbig := common.Bytes2Big(in[32:64])
-	v := byte(vbig.Uint64())
 
 	// tighter sig s values in homestead only apply to tx sigs
-	if !crypto.ValidateSignatureValues(v, r, s, false) {
+	if common.Bytes2Big(in[32:63]).BitLen() > 0 || !crypto.ValidateSignatureValues(v, r, s, false) {
 		glog.V(logger.Detail).Infof("ECRECOVER error: v, r or s value invalid")
 		return nil
 	}
-
+	// v needs to be at the end for libsecp256k1
-	// v needs to be at the end and normalized for libsecp256k1
+	pubKey, err := crypto.Ecrecover(in[:32], append(in[64:128], v))
-	vbignormal := new(big.Int).Sub(vbig, big.NewInt(27))
-	vnormal := byte(vbignormal.Uint64())
-	rsv := append(in[64:128], vnormal)
-	pubKey, err := crypto.Ecrecover(in[:32], rsv)
 	// make sure the public key is a valid one
 	if err != nil {
 		glog.V(logger.Detail).Infoln("ECRECOVER error: ", err)
@@ -114,6 +89,39 @@ func ecrecoverFunc(in []byte) []byte {
 	return common.LeftPadBytes(crypto.Keccak256(pubKey[1:])[12:], 32)
 }
 
-func memCpy(in []byte) []byte {
+// SHA256 implemented as a native contract
+type sha256 struct{}
+
+func (c *sha256) RequiredGas(inputSize int) *big.Int {
+	n := big.NewInt(int64(inputSize+31) / 32)
+	n.Mul(n, params.Sha256WordGas)
+	return n.Add(n, params.Sha256Gas)
+}
+func (c *sha256) Run(in []byte) []byte {
+	return crypto.Sha256(in)
+}
+
+// RIPMED160 implemented as a native contract
+type ripemd160 struct{}
+
+func (c *ripemd160) RequiredGas(inputSize int) *big.Int {
+	n := big.NewInt(int64(inputSize+31) / 32)
+	n.Mul(n, params.Ripemd160WordGas)
+	return n.Add(n, params.Ripemd160Gas)
+}
+func (c *ripemd160) Run(in []byte) []byte {
+	return common.LeftPadBytes(crypto.Ripemd160(in), 32)
+}
+
+// data copy implemented as a native contract
+type dataCopy struct{}
+
+func (c *dataCopy) RequiredGas(inputSize int) *big.Int {
+	n := big.NewInt(int64(inputSize+31) / 32)
+	n.Mul(n, params.IdentityWordGas)
+
+	return n.Add(n, params.IdentityGas)
+}
+func (c *dataCopy) Run(in []byte) []byte {
 	return in
 }

core/vm/environment.go

@@ -19,6 +19,7 @@ package vm
 import (
 	"fmt"
 	"math/big"
+	"sync/atomic"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -33,7 +34,7 @@ type (
 	GetHashFunc func(uint64) common.Hash
 )
 
-// Context provides the EVM with auxilary information. Once provided it shouldn't be modified.
+// Context provides the EVM with auxiliary information. Once provided it shouldn't be modified.
 type Context struct {
 	// CanTransfer returns whether the account contains
 	// sufficient ether to transfer the value
@@ -55,41 +56,54 @@ type Context struct {
 	Difficulty  *big.Int       // Provides information for DIFFICULTY
 }
 
-// Environment provides information about external sources for the EVM
+// EVM provides information about external sources for the EVM
 //
-// The Environment should never be reused and is not thread safe.
+// The EVM should never be reused and is not thread safe.
-type Environment struct {
+type EVM struct {
 	// Context provides auxiliary blockchain related information
 	Context
 	// StateDB gives access to the underlying state
 	StateDB StateDB
 	// Depth is the current call stack
-	Depth int
+	depth int
 
-	// evm is the ethereum virtual machine
-	evm Vm
 	// chainConfig contains information about the current chain
 	chainConfig *params.ChainConfig
-	vmConfig    Config
+	// virtual machine configuration options used to initialise the
+	// evm.
+	vmConfig Config
+	// global (to this context) ethereum virtual machine
+	// used throughout the execution of the tx.
+	interpreter *Interpreter
+	// abort is used to abort the EVM calling operations
+	// NOTE: must be set atomically
+	abort int32
 }
 
-// NewEnvironment retutrns a new EVM environment.
+// NewEVM retutrns a new EVM evmironment.
-func NewEnvironment(context Context, statedb StateDB, chainConfig *params.ChainConfig, vmConfig Config) *Environment {
+func NewEVM(ctx Context, statedb StateDB, chainConfig *params.ChainConfig, vmConfig Config) *EVM {
-	env := &Environment{
+	evm := &EVM{
-		Context:     context,
+		Context:     ctx,
 		StateDB:     statedb,
 		vmConfig:    vmConfig,
 		chainConfig: chainConfig,
 	}
-	env.evm = New(env, vmConfig)
+
-	return env
+	evm.interpreter = NewInterpreter(evm, vmConfig)
+	return evm
 }
 
-// Call executes the contract associated with the addr with the given input as paramaters. It also handles any
+// Cancel cancels any running EVM operation. This may be called concurrently and it's safe to be
+// called multiple times.
+func (evm *EVM) Cancel() {
+	atomic.StoreInt32(&evm.abort, 1)
+}
+
+// Call executes the contract associated with the addr with the given input as parameters. It also handles any
 // necessary value transfer required and takes the necessary steps to create accounts and reverses the state in
 // case of an execution error or failed value transfer.
-func (env *Environment) Call(caller ContractRef, addr common.Address, input []byte, gas, value *big.Int) ([]byte, error) {
+func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas, value *big.Int) (ret []byte, err error) {
-	if env.vmConfig.NoRecursion && env.Depth > 0 {
+	if evm.vmConfig.NoRecursion && evm.depth > 0 {
 		caller.ReturnGas(gas)
 
 		return nil, nil
@@ -97,59 +111,59 @@ func (env *Environment) Call(caller ContractRef, addr common.Address, input []by
 
 	// Depth check execution. Fail if we're trying to execute above the
 	// limit.
-	if env.Depth > int(params.CallCreateDepth.Int64()) {
+	if evm.depth > int(params.CallCreateDepth.Int64()) {
 		caller.ReturnGas(gas)
 
-		return nil, DepthError
+		return nil, ErrDepth
 	}
-	if !env.Context.CanTransfer(env.StateDB, caller.Address(), value) {
+	if !evm.Context.CanTransfer(evm.StateDB, caller.Address(), value) {
 		caller.ReturnGas(gas)
 
 		return nil, ErrInsufficientBalance
 	}
 
 	var (
-		to                  Account
+		to       Account
-		snapshotPreTransfer = env.StateDB.Snapshot()
+		snapshot = evm.StateDB.Snapshot()
 	)
-	if !env.StateDB.Exist(addr) {
+	if !evm.StateDB.Exist(addr) {
-		if Precompiled[addr.Str()] == nil && env.ChainConfig().IsEIP158(env.BlockNumber) && value.BitLen() == 0 {
+		if PrecompiledContracts[addr] == nil && evm.ChainConfig().IsEIP158(evm.BlockNumber) && value.BitLen() == 0 {
 			caller.ReturnGas(gas)
 			return nil, nil
 		}
 
-		to = env.StateDB.CreateAccount(addr)
+		to = evm.StateDB.CreateAccount(addr)
 	} else {
-		to = env.StateDB.GetAccount(addr)
+		to = evm.StateDB.GetAccount(addr)
 	}
-	env.Transfer(env.StateDB, caller.Address(), to.Address(), value)
+	evm.Transfer(evm.StateDB, caller.Address(), to.Address(), value)
 
 	// initialise a new contract and set the code that is to be used by the
-	// E The contract is a scoped environment for this execution context
+	// E The contract is a scoped evmironment for this execution context
 	// only.
 	contract := NewContract(caller, to, value, gas)
-	contract.SetCallCode(&addr, env.StateDB.GetCodeHash(addr), env.StateDB.GetCode(addr))
+	contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))
 	defer contract.Finalise()
 
-	ret, err := env.EVM().Run(contract, input)
+	ret, err = evm.interpreter.Run(contract, input)
 	// When an error was returned by the EVM or when setting the creation code
 	// above we revert to the snapshot and consume any gas remaining. Additionally
 	// when we're in homestead this also counts for code storage gas errors.
 	if err != nil {
 		contract.UseGas(contract.Gas)
 
-		env.StateDB.RevertToSnapshot(snapshotPreTransfer)
+		evm.StateDB.RevertToSnapshot(snapshot)
 	}
 	return ret, err
 }
 
-// CallCode executes the contract associated with the addr with the given input as paramaters. It also handles any
+// CallCode executes the contract associated with the addr with the given input as parameters. It also handles any
 // necessary value transfer required and takes the necessary steps to create accounts and reverses the state in
 // case of an execution error or failed value transfer.
 //
 // CallCode differs from Call in the sense that it executes the given address' code with the caller as context.
-func (env *Environment) CallCode(caller ContractRef, addr common.Address, input []byte, gas, value *big.Int) ([]byte, error) {
+func (evm *EVM) CallCode(caller ContractRef, addr common.Address, input []byte, gas, value *big.Int) (ret []byte, err error) {
-	if env.vmConfig.NoRecursion && env.Depth > 0 {
+	if evm.vmConfig.NoRecursion && evm.depth > 0 {
 		caller.ReturnGas(gas)
 
 		return nil, nil
@@ -157,45 +171,45 @@ func (env *Environment) CallCode(caller ContractRef, addr common.Address, input
 
 	// Depth check execution. Fail if we're trying to execute above the
 	// limit.
-	if env.Depth > int(params.CallCreateDepth.Int64()) {
+	if evm.depth > int(params.CallCreateDepth.Int64()) {
 		caller.ReturnGas(gas)
 
-		return nil, DepthError
+		return nil, ErrDepth
 	}
-	if !env.CanTransfer(env.StateDB, caller.Address(), value) {
+	if !evm.CanTransfer(evm.StateDB, caller.Address(), value) {
 		caller.ReturnGas(gas)
 
-		return nil, fmt.Errorf("insufficient funds to transfer value. Req %v, has %v", value, env.StateDB.GetBalance(caller.Address()))
+		return nil, fmt.Errorf("insufficient funds to transfer value. Req %v, has %v", value, evm.StateDB.GetBalance(caller.Address()))
 	}
 
 	var (
-		snapshotPreTransfer = env.StateDB.Snapshot()
+		snapshot = evm.StateDB.Snapshot()
-		to                  = env.StateDB.GetAccount(caller.Address())
+		to       = evm.StateDB.GetAccount(caller.Address())
 	)
 	// initialise a new contract and set the code that is to be used by the
-	// E The contract is a scoped environment for this execution context
+	// E The contract is a scoped evmironment for this execution context
 	// only.
 	contract := NewContract(caller, to, value, gas)
-	contract.SetCallCode(&addr, env.StateDB.GetCodeHash(addr), env.StateDB.GetCode(addr))
+	contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))
 	defer contract.Finalise()
 
-	ret, err := env.EVM().Run(contract, input)
+	ret, err = evm.interpreter.Run(contract, input)
 	if err != nil {
 		contract.UseGas(contract.Gas)
 
-		env.StateDB.RevertToSnapshot(snapshotPreTransfer)
+		evm.StateDB.RevertToSnapshot(snapshot)
 	}
 
 	return ret, err
 }
 
-// DelegateCall executes the contract associated with the addr with the given input as paramaters.
+// DelegateCall executes the contract associated with the addr with the given input as parameters.
 // It reverses the state in case of an execution error.
 //
 // DelegateCall differs from CallCode in the sense that it executes the given address' code with the caller as context
 // and the caller is set to the caller of the caller.
-func (env *Environment) DelegateCall(caller ContractRef, addr common.Address, input []byte, gas *big.Int) ([]byte, error) {
+func (evm *EVM) DelegateCall(caller ContractRef, addr common.Address, input []byte, gas *big.Int) (ret []byte, err error) {
-	if env.vmConfig.NoRecursion && env.Depth > 0 {
+	if evm.vmConfig.NoRecursion && evm.depth > 0 {
 		caller.ReturnGas(gas)
 
 		return nil, nil
@@ -203,34 +217,34 @@ func (env *Environment) DelegateCall(caller ContractRef, addr common.Address, in
 
 	// Depth check execution. Fail if we're trying to execute above the
 	// limit.
-	if env.Depth > int(params.CallCreateDepth.Int64()) {
+	if evm.depth > int(params.CallCreateDepth.Int64()) {
 		caller.ReturnGas(gas)
-		return nil, DepthError
+		return nil, ErrDepth
 	}
 
 	var (
-		snapshot = env.StateDB.Snapshot()
+		snapshot = evm.StateDB.Snapshot()
-		to       = env.StateDB.GetAccount(caller.Address())
+		to       = evm.StateDB.GetAccount(caller.Address())
 	)
 
 	// Iinitialise a new contract and make initialise the delegate values
 	contract := NewContract(caller, to, caller.Value(), gas).AsDelegate()
-	contract.SetCallCode(&addr, env.StateDB.GetCodeHash(addr), env.StateDB.GetCode(addr))
+	contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))
 	defer contract.Finalise()
 
-	ret, err := env.EVM().Run(contract, input)
+	ret, err = evm.interpreter.Run(contract, input)
 	if err != nil {
 		contract.UseGas(contract.Gas)
 
-		env.StateDB.RevertToSnapshot(snapshot)
+		evm.StateDB.RevertToSnapshot(snapshot)
 	}
 
 	return ret, err
 }
 
 // Create creates a new contract using code as deployment code.
-func (env *Environment) Create(caller ContractRef, code []byte, gas, value *big.Int) ([]byte, common.Address, error) {
+func (evm *EVM) Create(caller ContractRef, code []byte, gas, value *big.Int) (ret []byte, contractAddr common.Address, err error) {
-	if env.vmConfig.NoRecursion && env.Depth > 0 {
+	if evm.vmConfig.NoRecursion && evm.depth > 0 {
 		caller.ReturnGas(gas)
 
 		return nil, common.Address{}, nil
@@ -238,39 +252,38 @@ func (env *Environment) Create(caller ContractRef, code []byte, gas, value *big.
 
 	// Depth check execution. Fail if we're trying to execute above the
 	// limit.
-	if env.Depth > int(params.CallCreateDepth.Int64()) {
+	if evm.depth > int(params.CallCreateDepth.Int64()) {
 		caller.ReturnGas(gas)
 
-		return nil, common.Address{}, DepthError
+		return nil, common.Address{}, ErrDepth
 	}
-	if !env.CanTransfer(env.StateDB, caller.Address(), value) {
+	if !evm.CanTransfer(evm.StateDB, caller.Address(), value) {
 		caller.ReturnGas(gas)
 
 		return nil, common.Address{}, ErrInsufficientBalance
 	}
 
 	// Create a new account on the state
-	nonce := env.StateDB.GetNonce(caller.Address())
+	nonce := evm.StateDB.GetNonce(caller.Address())
-	env.StateDB.SetNonce(caller.Address(), nonce+1)
+	evm.StateDB.SetNonce(caller.Address(), nonce+1)
 
-	snapshotPreTransfer := env.StateDB.Snapshot()
+	snapshot := evm.StateDB.Snapshot()
-	var (
+	contractAddr = crypto.CreateAddress(caller.Address(), nonce)
-		addr = crypto.CreateAddress(caller.Address(), nonce)
+	to := evm.StateDB.CreateAccount(contractAddr)
-		to   = env.StateDB.CreateAccount(addr)
+	if evm.ChainConfig().IsEIP158(evm.BlockNumber) {
-	)
+		evm.StateDB.SetNonce(contractAddr, 1)
-	if env.ChainConfig().IsEIP158(env.BlockNumber) {
-		env.StateDB.SetNonce(addr, 1)
 	}
-	env.Transfer(env.StateDB, caller.Address(), to.Address(), value)
+	evm.Transfer(evm.StateDB, caller.Address(), to.Address(), value)
 
 	// initialise a new contract and set the code that is to be used by the
-	// E The contract is a scoped environment for this execution context
+	// E The contract is a scoped evmironment for this execution context
 	// only.
 	contract := NewContract(caller, to, value, gas)
-	contract.SetCallCode(&addr, crypto.Keccak256Hash(code), code)
+	contract.SetCallCode(&contractAddr, crypto.Keccak256Hash(code), code)
 	defer contract.Finalise()
 
-	ret, err := env.EVM().Run(contract, nil)
+	ret, err = evm.interpreter.Run(contract, nil)
+
 	// check whether the max code size has been exceeded
 	maxCodeSizeExceeded := len(ret) > params.MaxCodeSize
 	// if the contract creation ran successfully and no errors were returned
@@ -281,9 +294,9 @@ func (env *Environment) Create(caller ContractRef, code []byte, gas, value *big.
 		dataGas := big.NewInt(int64(len(ret)))
 		dataGas.Mul(dataGas, params.CreateDataGas)
 		if contract.UseGas(dataGas) {
-			env.StateDB.SetCode(addr, ret)
+			evm.StateDB.SetCode(contractAddr, ret)
 		} else {
-			err = CodeStoreOutOfGasError
+			err = ErrCodeStoreOutOfGas
 		}
 	}
 
@@ -291,12 +304,12 @@ func (env *Environment) Create(caller ContractRef, code []byte, gas, value *big.
 	// above we revert to the snapshot and consume any gas remaining. Additionally
 	// when we're in homestead this also counts for code storage gas errors.
 	if maxCodeSizeExceeded ||
-		(err != nil && (env.ChainConfig().IsHomestead(env.BlockNumber) || err != CodeStoreOutOfGasError)) {
+		(err != nil && (evm.ChainConfig().IsHomestead(evm.BlockNumber) || err != ErrCodeStoreOutOfGas)) {
 		contract.UseGas(contract.Gas)
-		env.StateDB.RevertToSnapshot(snapshotPreTransfer)
+		evm.StateDB.RevertToSnapshot(snapshot)
 
 		// Nothing should be returned when an error is thrown.
-		return nil, addr, err
+		return nil, contractAddr, err
 	}
 	// If the vm returned with an error the return value should be set to nil.
 	// This isn't consensus critical but merely to for behaviour reasons such as
@@ -305,11 +318,11 @@ func (env *Environment) Create(caller ContractRef, code []byte, gas, value *big.
 		ret = nil
 	}
 
-	return ret, addr, err
+	return ret, contractAddr, err
 }
 
-// ChainConfig returns the environment's chain configuration
+// ChainConfig returns the evmironment's chain configuration
-func (env *Environment) ChainConfig() *params.ChainConfig { return env.chainConfig }
+func (evm *EVM) ChainConfig() *params.ChainConfig { return evm.chainConfig }
 
-// EVM returns the environments EVM
+// Interpreter returns the EVM interpreter
-func (env *Environment) EVM() Vm { return env.evm }
+func (evm *EVM) Interpreter() *Interpreter { return evm.interpreter }

core/vm/errors.go

@@ -16,17 +16,12 @@
 
 package vm
 
-import (
+import "errors"
-	"errors"
-	"fmt"
-
-	"github.com/ethereum/go-ethereum/params"
-)
 
 var (
-	OutOfGasError          = errors.New("Out of gas")
+	ErrOutOfGas            = errors.New("out of gas")
-	CodeStoreOutOfGasError = errors.New("Contract creation code storage out of gas")
+	ErrCodeStoreOutOfGas   = errors.New("contract creation code storage out of gas")
-	DepthError             = fmt.Errorf("Max call depth exceeded (%d)", params.CallCreateDepth)
+	ErrDepth               = errors.New("max call depth exceeded")
-	TraceLimitReachedError = errors.New("The number of logs reached the specified limit")
+	ErrTraceLimitReached   = errors.New("the number of logs reached the specified limit")
 	ErrInsufficientBalance = errors.New("insufficient balance for transfer")
 )

core/vm/gas_table.go

@@ -0,0 +1,246 @@
+package vm
+
+import (
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/params"
+)
+
+func memoryGasCost(mem *Memory, newMemSize *big.Int) *big.Int {
+	gas := new(big.Int)
+	if newMemSize.Cmp(common.Big0) > 0 {
+		newMemSizeWords := toWordSize(newMemSize)
+
+		if newMemSize.Cmp(u256(int64(mem.Len()))) > 0 {
+			// be careful reusing variables here when changing.
+			// The order has been optimised to reduce allocation
+			oldSize := toWordSize(big.NewInt(int64(mem.Len())))
+			pow := new(big.Int).Exp(oldSize, common.Big2, Zero)
+			linCoef := oldSize.Mul(oldSize, params.MemoryGas)
+			quadCoef := new(big.Int).Div(pow, params.QuadCoeffDiv)
+			oldTotalFee := new(big.Int).Add(linCoef, quadCoef)
+
+			pow.Exp(newMemSizeWords, common.Big2, Zero)
+			linCoef = linCoef.Mul(newMemSizeWords, params.MemoryGas)
+			quadCoef = quadCoef.Div(pow, params.QuadCoeffDiv)
+			newTotalFee := linCoef.Add(linCoef, quadCoef)
+
+			fee := newTotalFee.Sub(newTotalFee, oldTotalFee)
+			gas.Add(gas, fee)
+		}
+	}
+	return gas
+}
+
+func constGasFunc(gas *big.Int) gasFunc {
+	return func(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+		return gas
+	}
+}
+
+func gasCalldataCopy(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	gas := memoryGasCost(mem, memorySize)
+	gas.Add(gas, GasFastestStep)
+	words := toWordSize(stack.Back(2))
+
+	return gas.Add(gas, words.Mul(words, params.CopyGas))
+}
+
+func gasSStore(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	var (
+		y, x = stack.Back(1), stack.Back(0)
+		val  = env.StateDB.GetState(contract.Address(), common.BigToHash(x))
+	)
+	// This checks for 3 scenario's and calculates gas accordingly
+	// 1. From a zero-value address to a non-zero value         (NEW VALUE)
+	// 2. From a non-zero value address to a zero-value address (DELETE)
+	// 3. From a non-zero to a non-zero                         (CHANGE)
+	if common.EmptyHash(val) && !common.EmptyHash(common.BigToHash(y)) {
+		// 0 => non 0
+		return new(big.Int).Set(params.SstoreSetGas)
+	} else if !common.EmptyHash(val) && common.EmptyHash(common.BigToHash(y)) {
+		env.StateDB.AddRefund(params.SstoreRefundGas)
+
+		return new(big.Int).Set(params.SstoreClearGas)
+	} else {
+		// non 0 => non 0 (or 0 => 0)
+		return new(big.Int).Set(params.SstoreResetGas)
+	}
+}
+
+func makeGasLog(n uint) gasFunc {
+	return func(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+		mSize := stack.Back(1)
+
+		gas := new(big.Int).Add(memoryGasCost(mem, memorySize), params.LogGas)
+		gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(n)), params.LogTopicGas))
+		gas.Add(gas, new(big.Int).Mul(mSize, params.LogDataGas))
+		return gas
+	}
+}
+
+func gasSha3(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	gas := memoryGasCost(mem, memorySize)
+	gas.Add(gas, params.Sha3Gas)
+	words := toWordSize(stack.Back(1))
+	return gas.Add(gas, words.Mul(words, params.Sha3WordGas))
+}
+
+func gasCodeCopy(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	gas := memoryGasCost(mem, memorySize)
+	gas.Add(gas, GasFastestStep)
+	words := toWordSize(stack.Back(2))
+
+	return gas.Add(gas, words.Mul(words, params.CopyGas))
+}
+
+func gasExtCodeCopy(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	gas := memoryGasCost(mem, memorySize)
+	gas.Add(gas, gt.ExtcodeCopy)
+	words := toWordSize(stack.Back(3))
+
+	return gas.Add(gas, words.Mul(words, params.CopyGas))
+}
+
+func gasMLoad(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return new(big.Int).Add(GasFastestStep, memoryGasCost(mem, memorySize))
+}
+
+func gasMStore8(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return new(big.Int).Add(GasFastestStep, memoryGasCost(mem, memorySize))
+}
+
+func gasMStore(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return new(big.Int).Add(GasFastestStep, memoryGasCost(mem, memorySize))
+}
+
+func gasCreate(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return new(big.Int).Add(params.CreateGas, memoryGasCost(mem, memorySize))
+}
+
+func gasBalance(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return gt.Balance
+}
+
+func gasExtCodeSize(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return gt.ExtcodeSize
+}
+
+func gasSLoad(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return gt.SLoad
+}
+
+func gasExp(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	expByteLen := int64((stack.data[stack.len()-2].BitLen() + 7) / 8)
+	gas := big.NewInt(expByteLen)
+	gas.Mul(gas, gt.ExpByte)
+	return gas.Add(gas, GasSlowStep)
+}
+
+func gasCall(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	gas := new(big.Int).Set(gt.Calls)
+
+	transfersValue := stack.Back(2).BitLen() > 0
+	var (
+		address = common.BigToAddress(stack.Back(1))
+		eip158  = env.ChainConfig().IsEIP158(env.BlockNumber)
+	)
+	if eip158 {
+		if env.StateDB.Empty(address) && transfersValue {
+			gas.Add(gas, params.CallNewAccountGas)
+		}
+	} else if !env.StateDB.Exist(address) {
+		gas.Add(gas, params.CallNewAccountGas)
+	}
+	if transfersValue {
+		gas.Add(gas, params.CallValueTransferGas)
+	}
+	gas.Add(gas, memoryGasCost(mem, memorySize))
+
+	cg := callGas(gt, contract.Gas, gas, stack.data[stack.len()-1])
+	// Replace the stack item with the new gas calculation. This means that
+	// either the original item is left on the stack or the item is replaced by:
+	// (availableGas - gas) * 63 / 64
+	// We replace the stack item so that it's available when the opCall instruction is
+	// called. This information is otherwise lost due to the dependency on *current*
+	// available gas.
+	stack.data[stack.len()-1] = cg
+
+	return gas.Add(gas, cg)
+}
+
+func gasCallCode(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	gas := new(big.Int).Set(gt.Calls)
+	if stack.Back(2).BitLen() > 0 {
+		gas.Add(gas, params.CallValueTransferGas)
+	}
+	gas.Add(gas, memoryGasCost(mem, memorySize))
+
+	cg := callGas(gt, contract.Gas, gas, stack.data[stack.len()-1])
+	// Replace the stack item with the new gas calculation. This means that
+	// either the original item is left on the stack or the item is replaced by:
+	// (availableGas - gas) * 63 / 64
+	// We replace the stack item so that it's available when the opCall instruction is
+	// called. This information is otherwise lost due to the dependency on *current*
+	// available gas.
+	stack.data[stack.len()-1] = cg
+
+	return gas.Add(gas, cg)
+}
+
+func gasReturn(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return memoryGasCost(mem, memorySize)
+}
+
+func gasSuicide(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	gas := new(big.Int)
+	// EIP150 homestead gas reprice fork:
+	if env.ChainConfig().IsEIP150(env.BlockNumber) {
+		gas.Set(gt.Suicide)
+		var (
+			address = common.BigToAddress(stack.Back(0))
+			eip158  = env.ChainConfig().IsEIP158(env.BlockNumber)
+		)
+
+		if eip158 {
+			// if empty and transfers value
+			if env.StateDB.Empty(address) && env.StateDB.GetBalance(contract.Address()).BitLen() > 0 {
+				gas.Add(gas, gt.CreateBySuicide)
+			}
+		} else if !env.StateDB.Exist(address) {
+			gas.Add(gas, gt.CreateBySuicide)
+		}
+	}
+
+	if !env.StateDB.HasSuicided(contract.Address()) {
+		env.StateDB.AddRefund(params.SuicideRefundGas)
+	}
+	return gas
+}
+
+func gasDelegateCall(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	gas := new(big.Int).Add(gt.Calls, memoryGasCost(mem, memorySize))
+
+	cg := callGas(gt, contract.Gas, gas, stack.data[stack.len()-1])
+	// Replace the stack item with the new gas calculation. This means that
+	// either the original item is left on the stack or the item is replaced by:
+	// (availableGas - gas) * 63 / 64
+	// We replace the stack item so that it's available when the opCall instruction is
+	// called.
+	stack.data[stack.len()-1] = cg
+
+	return gas.Add(gas, cg)
+}
+
+func gasPush(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return GasFastestStep
+}
+
+func gasSwap(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return GasFastestStep
+}
+
+func gasDup(gt params.GasTable, env *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize *big.Int) *big.Int {
+	return GasFastestStep
+}

core/vm/instructions.go

@@ -22,132 +22,44 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/math"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/params"
 )
 
-type programInstruction interface {
+func opAdd(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	// executes the program instruction and allows the instruction to modify the state of the program
+	x, y := stack.pop(), stack.pop()
-	do(program *Program, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) ([]byte, error)
+	stack.push(U256(x.Add(x, y)))
-	// returns whether the program instruction halts the execution of the JIT
-	halts() bool
-	// Returns the current op code (debugging purposes)
-	Op() OpCode
-}
-
-type instrFn func(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack)
-
-type instruction struct {
-	op   OpCode
-	pc   uint64
-	fn   instrFn
-	data *big.Int
-
-	gas   *big.Int
-	spop  int
-	spush int
-
-	returns bool
-}
-
-func jump(mapping map[uint64]uint64, destinations map[uint64]struct{}, contract *Contract, to *big.Int) (uint64, error) {
-	if !validDest(destinations, to) {
-		nop := contract.GetOp(to.Uint64())
-		return 0, fmt.Errorf("invalid jump destination (%v) %v", nop, to)
-	}
-
-	return mapping[to.Uint64()], nil
-}
-
-func (instr instruction) do(program *Program, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	// calculate the new memory size and gas price for the current executing opcode
-	newMemSize, cost, err := jitCalculateGasAndSize(env, contract, instr, memory, stack)
-	if err != nil {
-		return nil, err
-	}
-
-	// Use the calculated gas. When insufficient gas is present, use all gas and return an
-	// Out Of Gas error
-	if !contract.UseGas(cost) {
-		return nil, OutOfGasError
-	}
-	// Resize the memory calculated previously
-	memory.Resize(newMemSize.Uint64())
-
-	// These opcodes return an argument and are therefor handled
-	// differently from the rest of the opcodes
-	switch instr.op {
-	case JUMP:
-		if pos, err := jump(program.mapping, program.destinations, contract, stack.pop()); err != nil {
-			return nil, err
-		} else {
-			*pc = pos
-			return nil, nil
-		}
-	case JUMPI:
-		pos, cond := stack.pop(), stack.pop()
-		if cond.Cmp(common.BigTrue) >= 0 {
-			if pos, err := jump(program.mapping, program.destinations, contract, pos); err != nil {
-				return nil, err
-			} else {
-				*pc = pos
-				return nil, nil
-			}
-		}
-	case RETURN:
-		offset, size := stack.pop(), stack.pop()
-		return memory.GetPtr(offset.Int64(), size.Int64()), nil
-	default:
-		if instr.fn == nil {
-			return nil, fmt.Errorf("Invalid opcode 0x%x", instr.op)
-		}
-		instr.fn(instr, pc, env, contract, memory, stack)
-	}
-	*pc++
 	return nil, nil
 }
 
-func (instr instruction) halts() bool {
+func opSub(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	return instr.returns
-}
-
-func (instr instruction) Op() OpCode {
-	return instr.op
-}
-
-func opStaticJump(instr instruction, pc *uint64, ret *big.Int, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
-	ret.Set(instr.data)
-}
-
-func opAdd(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
-	x, y := stack.pop(), stack.pop()
-	stack.push(U256(x.Add(x, y)))
-}
-
-func opSub(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
 	x, y := stack.pop(), stack.pop()
 	stack.push(U256(x.Sub(x, y)))
+	return nil, nil
 }
 
-func opMul(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opMul(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	stack.push(U256(x.Mul(x, y)))
+	return nil, nil
 }
 
-func opDiv(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opDiv(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	if y.Cmp(common.Big0) != 0 {
 		stack.push(U256(x.Div(x, y)))
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
 
-func opSdiv(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opSdiv(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := S256(stack.pop()), S256(stack.pop())
 	if y.Cmp(common.Big0) == 0 {
 		stack.push(new(big.Int))
-		return
+		return nil, nil
 	} else {
 		n := new(big.Int)
 		if new(big.Int).Mul(x, y).Cmp(common.Big0) < 0 {
@@ -161,18 +73,20 @@ func opSdiv(instr instruction, pc *uint64, env *Environment, contract *Contract,
 
 		stack.push(U256(res))
 	}
+	return nil, nil
 }
 
-func opMod(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opMod(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	if y.Cmp(common.Big0) == 0 {
 		stack.push(new(big.Int))
 	} else {
 		stack.push(U256(x.Mod(x, y)))
 	}
+	return nil, nil
 }
 
-func opSmod(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opSmod(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := S256(stack.pop()), S256(stack.pop())
 
 	if y.Cmp(common.Big0) == 0 {
@@ -190,14 +104,16 @@ func opSmod(instr instruction, pc *uint64, env *Environment, contract *Contract,
 
 		stack.push(U256(res))
 	}
+	return nil, nil
 }
 
-func opExp(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opExp(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	base, exponent := stack.pop(), stack.pop()
 	stack.push(math.Exp(base, exponent))
+	return nil, nil
 }
 
-func opSignExtend(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opSignExtend(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	back := stack.pop()
 	if back.Cmp(big.NewInt(31)) < 0 {
 		bit := uint(back.Uint64()*8 + 7)
@@ -212,80 +128,91 @@ func opSignExtend(instr instruction, pc *uint64, env *Environment, contract *Con
 
 		stack.push(U256(num))
 	}
+	return nil, nil
 }
 
-func opNot(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opNot(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x := stack.pop()
 	stack.push(U256(x.Not(x)))
+	return nil, nil
 }
 
-func opLt(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opLt(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	if x.Cmp(y) < 0 {
 		stack.push(big.NewInt(1))
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
 
-func opGt(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opGt(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	if x.Cmp(y) > 0 {
 		stack.push(big.NewInt(1))
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
 
-func opSlt(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opSlt(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := S256(stack.pop()), S256(stack.pop())
 	if x.Cmp(S256(y)) < 0 {
 		stack.push(big.NewInt(1))
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
 
-func opSgt(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opSgt(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := S256(stack.pop()), S256(stack.pop())
 	if x.Cmp(y) > 0 {
 		stack.push(big.NewInt(1))
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
 
-func opEq(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opEq(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	if x.Cmp(y) == 0 {
 		stack.push(big.NewInt(1))
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
 
-func opIszero(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opIszero(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x := stack.pop()
 	if x.Cmp(common.Big0) > 0 {
 		stack.push(new(big.Int))
 	} else {
 		stack.push(big.NewInt(1))
 	}
+	return nil, nil
 }
 
-func opAnd(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opAnd(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	stack.push(x.And(x, y))
+	return nil, nil
 }
-func opOr(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opOr(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	stack.push(x.Or(x, y))
+	return nil, nil
 }
-func opXor(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opXor(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	stack.push(x.Xor(x, y))
+	return nil, nil
 }
-func opByte(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opByte(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	th, val := stack.pop(), stack.pop()
 	if th.Cmp(big.NewInt(32)) < 0 {
 		byte := big.NewInt(int64(common.LeftPadBytes(val.Bytes(), 32)[th.Int64()]))
@@ -293,8 +220,9 @@ func opByte(instr instruction, pc *uint64, env *Environment, contract *Contract,
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
-func opAddmod(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opAddmod(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y, z := stack.pop(), stack.pop(), stack.pop()
 	if z.Cmp(Zero) > 0 {
 		add := x.Add(x, y)
@@ -303,8 +231,9 @@ func opAddmod(instr instruction, pc *uint64, env *Environment, contract *Contrac
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
-func opMulmod(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opMulmod(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y, z := stack.pop(), stack.pop(), stack.pop()
 	if z.Cmp(Zero) > 0 {
 		mul := x.Mul(x, y)
@@ -313,67 +242,79 @@ func opMulmod(instr instruction, pc *uint64, env *Environment, contract *Contrac
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
 
-func opSha3(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opSha3(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	offset, size := stack.pop(), stack.pop()
 	hash := crypto.Keccak256(memory.Get(offset.Int64(), size.Int64()))
 
 	stack.push(common.BytesToBig(hash))
+	return nil, nil
 }
 
-func opAddress(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opAddress(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(common.Bytes2Big(contract.Address().Bytes()))
+	return nil, nil
 }
 
-func opBalance(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opBalance(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	addr := common.BigToAddress(stack.pop())
 	balance := env.StateDB.GetBalance(addr)
 
 	stack.push(new(big.Int).Set(balance))
+	return nil, nil
 }
 
-func opOrigin(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opOrigin(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(env.Origin.Big())
+	return nil, nil
 }
 
-func opCaller(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCaller(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(contract.Caller().Big())
+	return nil, nil
 }
 
-func opCallValue(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCallValue(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(new(big.Int).Set(contract.value))
+	return nil, nil
 }
 
-func opCalldataLoad(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCalldataLoad(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(common.Bytes2Big(getData(contract.Input, stack.pop(), common.Big32)))
+	return nil, nil
 }
 
-func opCalldataSize(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCalldataSize(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(big.NewInt(int64(len(contract.Input))))
+	return nil, nil
 }
 
-func opCalldataCopy(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCalldataCopy(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	var (
 		mOff = stack.pop()
 		cOff = stack.pop()
 		l    = stack.pop()
 	)
 	memory.Set(mOff.Uint64(), l.Uint64(), getData(contract.Input, cOff, l))
+	return nil, nil
 }
 
-func opExtCodeSize(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opExtCodeSize(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	addr := common.BigToAddress(stack.pop())
 	l := big.NewInt(int64(env.StateDB.GetCodeSize(addr)))
 	stack.push(l)
+	return nil, nil
 }
 
-func opCodeSize(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCodeSize(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	l := big.NewInt(int64(len(contract.Code)))
 	stack.push(l)
+	return nil, nil
 }
 
-func opCodeCopy(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCodeCopy(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	var (
 		mOff = stack.pop()
 		cOff = stack.pop()
@@ -382,9 +323,10 @@ func opCodeCopy(instr instruction, pc *uint64, env *Environment, contract *Contr
 	codeCopy := getData(contract.Code, cOff, l)
 
 	memory.Set(mOff.Uint64(), l.Uint64(), codeCopy)
+	return nil, nil
 }
 
-func opExtCodeCopy(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opExtCodeCopy(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	var (
 		addr = common.BigToAddress(stack.pop())
 		mOff = stack.pop()
@@ -394,13 +336,15 @@ func opExtCodeCopy(instr instruction, pc *uint64, env *Environment, contract *Co
 	codeCopy := getData(env.StateDB.GetCode(addr), cOff, l)
 
 	memory.Set(mOff.Uint64(), l.Uint64(), codeCopy)
+	return nil, nil
 }
 
-func opGasprice(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opGasprice(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(new(big.Int).Set(env.GasPrice))
+	return nil, nil
 }
 
-func opBlockhash(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opBlockhash(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	num := stack.pop()
 
 	n := new(big.Int).Sub(env.BlockNumber, common.Big257)
@@ -409,106 +353,115 @@ func opBlockhash(instr instruction, pc *uint64, env *Environment, contract *Cont
 	} else {
 		stack.push(new(big.Int))
 	}
+	return nil, nil
 }
 
-func opCoinbase(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCoinbase(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(env.Coinbase.Big())
+	return nil, nil
 }
 
-func opTimestamp(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opTimestamp(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(U256(new(big.Int).Set(env.Time)))
+	return nil, nil
 }
 
-func opNumber(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opNumber(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(U256(new(big.Int).Set(env.BlockNumber)))
+	return nil, nil
 }
 
-func opDifficulty(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opDifficulty(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(U256(new(big.Int).Set(env.Difficulty)))
+	return nil, nil
 }
 
-func opGasLimit(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opGasLimit(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(U256(new(big.Int).Set(env.GasLimit)))
+	return nil, nil
 }
 
-func opPop(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opPop(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.pop()
+	return nil, nil
 }
 
-func opPush(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opMload(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	stack.push(new(big.Int).Set(instr.data))
-}
-
-func opDup(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
-	stack.dup(int(instr.data.Int64()))
-}
-
-func opSwap(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
-	stack.swap(int(instr.data.Int64()))
-}
-
-func opLog(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
-	n := int(instr.data.Int64())
-	topics := make([]common.Hash, n)
-	mStart, mSize := stack.pop(), stack.pop()
-	for i := 0; i < n; i++ {
-		topics[i] = common.BigToHash(stack.pop())
-	}
-
-	d := memory.Get(mStart.Int64(), mSize.Int64())
-	log := NewLog(contract.Address(), topics, d, env.BlockNumber.Uint64())
-	env.StateDB.AddLog(log)
-}
-
-func opMload(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
 	offset := stack.pop()
 	val := common.BigD(memory.Get(offset.Int64(), 32))
 	stack.push(val)
+	return nil, nil
 }
 
-func opMstore(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opMstore(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	// pop value of the stack
 	mStart, val := stack.pop(), stack.pop()
 	memory.Set(mStart.Uint64(), 32, common.BigToBytes(val, 256))
+	return nil, nil
 }
 
-func opMstore8(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opMstore8(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	off, val := stack.pop().Int64(), stack.pop().Int64()
 	memory.store[off] = byte(val & 0xff)
+	return nil, nil
 }
 
-func opSload(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opSload(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	loc := common.BigToHash(stack.pop())
 	val := env.StateDB.GetState(contract.Address(), loc).Big()
 	stack.push(val)
+	return nil, nil
 }
 
-func opSstore(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opSstore(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	loc := common.BigToHash(stack.pop())
 	val := stack.pop()
 	env.StateDB.SetState(contract.Address(), loc, common.BigToHash(val))
+	return nil, nil
 }
 
-func opJump(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opJump(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
+	pos := stack.pop()
+	if !contract.jumpdests.has(contract.CodeHash, contract.Code, pos) {
+		nop := contract.GetOp(pos.Uint64())
+		return nil, fmt.Errorf("invalid jump destination (%v) %v", nop, pos)
+	}
+	*pc = pos.Uint64()
+	return nil, nil
 }
-func opJumpi(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opJumpi(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
+	pos, cond := stack.pop(), stack.pop()
+	if cond.Cmp(common.BigTrue) >= 0 {
+		if !contract.jumpdests.has(contract.CodeHash, contract.Code, pos) {
+			nop := contract.GetOp(pos.Uint64())
+			return nil, fmt.Errorf("invalid jump destination (%v) %v", nop, pos)
+		}
+		*pc = pos.Uint64()
+	} else {
+		*pc++
+	}
+	return nil, nil
 }
-func opJumpdest(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opJumpdest(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
+	return nil, nil
 }
 
-func opPc(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opPc(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	stack.push(new(big.Int).Set(instr.data))
+	stack.push(new(big.Int).SetUint64(*pc))
+	return nil, nil
 }
 
-func opMsize(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opMsize(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(big.NewInt(int64(memory.Len())))
+	return nil, nil
 }
 
-func opGas(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opGas(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	stack.push(new(big.Int).Set(contract.Gas))
+	return nil, nil
 }
 
-func opCreate(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCreate(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	var (
 		value        = stack.pop()
 		offset, size = stack.pop(), stack.pop()
@@ -526,16 +479,17 @@ func opCreate(instr instruction, pc *uint64, env *Environment, contract *Contrac
 	// homestead we must check for CodeStoreOutOfGasError (homestead only
 	// rule) and treat as an error, if the ruleset is frontier we must
 	// ignore this error and pretend the operation was successful.
-	if env.ChainConfig().IsHomestead(env.BlockNumber) && suberr == CodeStoreOutOfGasError {
+	if env.ChainConfig().IsHomestead(env.BlockNumber) && suberr == ErrCodeStoreOutOfGas {
 		stack.push(new(big.Int))
-	} else if suberr != nil && suberr != CodeStoreOutOfGasError {
+	} else if suberr != nil && suberr != ErrCodeStoreOutOfGas {
 		stack.push(new(big.Int))
 	} else {
 		stack.push(addr.Big())
 	}
+	return nil, nil
 }
 
-func opCall(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCall(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	gas := stack.pop()
 	// pop gas and value of the stack.
 	addr, value := stack.pop(), stack.pop()
@@ -564,9 +518,10 @@ func opCall(instr instruction, pc *uint64, env *Environment, contract *Contract,
 
 		memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
 	}
+	return nil, nil
 }
 
-func opCallCode(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opCallCode(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	gas := stack.pop()
 	// pop gas and value of the stack.
 	addr, value := stack.pop(), stack.pop()
@@ -595,9 +550,16 @@ func opCallCode(instr instruction, pc *uint64, env *Environment, contract *Contr
 
 		memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
 	}
+	return nil, nil
 }
 
-func opDelegateCall(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opDelegateCall(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
+	// if not homestead return an error. DELEGATECALL is not supported
+	// during pre-homestead.
+	if !env.ChainConfig().IsHomestead(env.BlockNumber) {
+		return nil, fmt.Errorf("invalid opcode %x", DELEGATECALL)
+	}
+
 	gas, to, inOffset, inSize, outOffset, outSize := stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop()
 
 	toAddr := common.BigToAddress(to)
@@ -609,25 +571,34 @@ func opDelegateCall(instr instruction, pc *uint64, env *Environment, contract *C
 		stack.push(big.NewInt(1))
 		memory.Set(outOffset.Uint64(), outSize.Uint64(), ret)
 	}
+	return nil, nil
 }
 
-func opReturn(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opReturn(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-}
+	offset, size := stack.pop(), stack.pop()
-func opStop(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+	ret := memory.GetPtr(offset.Int64(), size.Int64())
+
+	return ret, nil
 }
 
-func opSuicide(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+func opStop(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
+	return nil, nil
+}
+
+func opSuicide(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	balance := env.StateDB.GetBalance(contract.Address())
 	env.StateDB.AddBalance(common.BigToAddress(stack.pop()), balance)
 
 	env.StateDB.Suicide(contract.Address())
+
+	return nil, nil
 }
 
 // following functions are used by the instruction jump  table
 
 // make log instruction function
-func makeLog(size int) instrFn {
+func makeLog(size int) executionFunc {
-	return func(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+	return func(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 		topics := make([]common.Hash, size)
 		mStart, mSize := stack.pop(), stack.pop()
 		for i := 0; i < size; i++ {
@@ -635,32 +606,42 @@ func makeLog(size int) instrFn {
 		}
 
 		d := memory.Get(mStart.Int64(), mSize.Int64())
-		log := NewLog(contract.Address(), topics, d, env.BlockNumber.Uint64())
+		env.StateDB.AddLog(&types.Log{
-		env.StateDB.AddLog(log)
+			Address: contract.Address(),
+			Topics:  topics,
+			Data:    d,
+			// This is a non-consensus field, but assigned here because
+			// core/state doesn't know the current block number.
+			BlockNumber: env.BlockNumber.Uint64(),
+		})
+		return nil, nil
 	}
 }
 
 // make push instruction function
-func makePush(size uint64, bsize *big.Int) instrFn {
+func makePush(size uint64, bsize *big.Int) executionFunc {
-	return func(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+	return func(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 		byts := getData(contract.Code, new(big.Int).SetUint64(*pc+1), bsize)
 		stack.push(common.Bytes2Big(byts))
 		*pc += size
+		return nil, nil
 	}
 }
 
 // make push instruction function
-func makeDup(size int64) instrFn {
+func makeDup(size int64) executionFunc {
-	return func(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+	return func(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 		stack.dup(int(size))
+		return nil, nil
 	}
 }
 
 // make swap instruction function
-func makeSwap(size int64) instrFn {
+func makeSwap(size int64) executionFunc {
 	// switch n + 1 otherwise n would be swapped with n
 	size += 1
-	return func(instr instruction, pc *uint64, env *Environment, contract *Contract, memory *Memory, stack *Stack) {
+	return func(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 		stack.swap(int(size))
+		return nil, nil
 	}
 }

core/vm/interface.go

@@ -20,16 +20,9 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
 )
 
-// Vm is the basic interface for an implementation of the EVM.
-type Vm interface {
-	// Run should execute the given contract with the input given in in
-	// and return the contract execution return bytes or an error if it
-	// failed.
-	Run(c *Contract, in []byte) ([]byte, error)
-}
-
 // StateDB is an EVM database for full state querying.
 type StateDB interface {
 	GetAccount(common.Address) Account
@@ -66,7 +59,7 @@ type StateDB interface {
 	RevertToSnapshot(int)
 	Snapshot() int
 
-	AddLog(*Log)
+	AddLog(*types.Log)
 }
 
 // Account represents a contract or basic ethereum account.
@@ -83,15 +76,15 @@ type Account interface {
 	Value() *big.Int
 }
 
-// CallContext provides a basic interface for the EVM calling conventions. The EVM Environment
+// CallContext provides a basic interface for the EVM calling conventions. The EVM EVM
 // depends on this context being implemented for doing subcalls and initialising new EVM contracts.
 type CallContext interface {
 	// Call another contract
-	Call(env *Environment, me ContractRef, addr common.Address, data []byte, gas, value *big.Int) ([]byte, error)
+	Call(env *EVM, me ContractRef, addr common.Address, data []byte, gas, value *big.Int) ([]byte, error)
 	// Take another's contract code and execute within our own context
-	CallCode(env *Environment, me ContractRef, addr common.Address, data []byte, gas, value *big.Int) ([]byte, error)
+	CallCode(env *EVM, me ContractRef, addr common.Address, data []byte, gas, value *big.Int) ([]byte, error)
 	// Same as CallCode except sender and value is propagated from parent to child scope
-	DelegateCall(env *Environment, me ContractRef, addr common.Address, data []byte, gas *big.Int) ([]byte, error)
+	DelegateCall(env *EVM, me ContractRef, addr common.Address, data []byte, gas *big.Int) ([]byte, error)
 	// Create a new contract
-	Create(env *Environment, me ContractRef, data []byte, gas, value *big.Int) ([]byte, common.Address, error)
+	Create(env *EVM, me ContractRef, data []byte, gas, value *big.Int) ([]byte, common.Address, error)
 }

core/vm/jit.go

@@ -1,512 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package vm
-
-import (
-	"fmt"
-	"math/big"
-	"sync/atomic"
-	"time"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/logger/glog"
-	"github.com/ethereum/go-ethereum/params"
-	"github.com/hashicorp/golang-lru"
-)
-
-// progStatus is the type for the JIT program status.
-type progStatus int32
-
-const (
-	progUnknown progStatus = iota // unknown status
-	progCompile                   // compile status
-	progReady                     // ready for use status
-	progError                     // error status (usually caused during compilation)
-
-	defaultJitMaxCache int = 64 // maximum amount of jit cached programs
-)
-
-var MaxProgSize int // Max cache size for JIT programs
-
-var programs *lru.Cache // lru cache for the JIT programs.
-
-func init() {
-	SetJITCacheSize(defaultJitMaxCache)
-}
-
-// SetJITCacheSize recreates the program cache with the max given size. Setting
-// a new cache is **not** thread safe. Use with caution.
-func SetJITCacheSize(size int) {
-	programs, _ = lru.New(size)
-}
-
-// GetProgram returns the program by id or nil when non-existent
-func GetProgram(id common.Hash) *Program {
-	if p, ok := programs.Get(id); ok {
-		return p.(*Program)
-	}
-
-	return nil
-}
-
-// GenProgramStatus returns the status of the given program id
-func GetProgramStatus(id common.Hash) progStatus {
-	program := GetProgram(id)
-	if program != nil {
-		return progStatus(atomic.LoadInt32(&program.status))
-	}
-
-	return progUnknown
-}
-
-// Program is a compiled program for the JIT VM and holds all required for
-// running a compiled JIT program.
-type Program struct {
-	Id     common.Hash // Id of the program
-	status int32       // status should be accessed atomically
-
-	contract *Contract
-
-	instructions []programInstruction // instruction set
-	mapping      map[uint64]uint64    // real PC mapping to array indices
-	destinations map[uint64]struct{}  // cached jump destinations
-
-	code []byte
-}
-
-// NewProgram returns a new JIT program
-func NewProgram(code []byte) *Program {
-	program := &Program{
-		Id:           crypto.Keccak256Hash(code),
-		mapping:      make(map[uint64]uint64),
-		destinations: make(map[uint64]struct{}),
-		code:         code,
-	}
-
-	programs.Add(program.Id, program)
-	return program
-}
-
-func (p *Program) addInstr(op OpCode, pc uint64, fn instrFn, data *big.Int) {
-	// PUSH and DUP are a bit special. They all cost the same but we do want to have checking on stack push limit
-	// PUSH is also allowed to calculate the same price for all PUSHes
-	// DUP requirements are handled elsewhere (except for the stack limit check)
-	baseOp := op
-	if op >= PUSH1 && op <= PUSH32 {
-		baseOp = PUSH1
-	}
-	if op >= DUP1 && op <= DUP16 {
-		baseOp = DUP1
-	}
-	base := _baseCheck[baseOp]
-
-	returns := op == RETURN || op == SUICIDE || op == STOP
-	instr := instruction{op, pc, fn, data, base.gas, base.stackPop, base.stackPush, returns}
-
-	p.instructions = append(p.instructions, instr)
-	p.mapping[pc] = uint64(len(p.instructions) - 1)
-}
-
-// CompileProgram compiles the given program and return an error when it fails
-func CompileProgram(program *Program) (err error) {
-	if progStatus(atomic.LoadInt32(&program.status)) == progCompile {
-		return nil
-	}
-	atomic.StoreInt32(&program.status, int32(progCompile))
-	defer func() {
-		if err != nil {
-			atomic.StoreInt32(&program.status, int32(progError))
-		} else {
-			atomic.StoreInt32(&program.status, int32(progReady))
-		}
-	}()
-	if glog.V(logger.Debug) {
-		glog.Infof("compiling %x\n", program.Id[:4])
-		tstart := time.Now()
-		defer func() {
-			glog.Infof("compiled  %x instrc: %d time: %v\n", program.Id[:4], len(program.instructions), time.Since(tstart))
-		}()
-	}
-
-	// loop thru the opcodes and "compile" in to instructions
-	for pc := uint64(0); pc < uint64(len(program.code)); pc++ {
-		switch op := OpCode(program.code[pc]); op {
-		case ADD:
-			program.addInstr(op, pc, opAdd, nil)
-		case SUB:
-			program.addInstr(op, pc, opSub, nil)
-		case MUL:
-			program.addInstr(op, pc, opMul, nil)
-		case DIV:
-			program.addInstr(op, pc, opDiv, nil)
-		case SDIV:
-			program.addInstr(op, pc, opSdiv, nil)
-		case MOD:
-			program.addInstr(op, pc, opMod, nil)
-		case SMOD:
-			program.addInstr(op, pc, opSmod, nil)
-		case EXP:
-			program.addInstr(op, pc, opExp, nil)
-		case SIGNEXTEND:
-			program.addInstr(op, pc, opSignExtend, nil)
-		case NOT:
-			program.addInstr(op, pc, opNot, nil)
-		case LT:
-			program.addInstr(op, pc, opLt, nil)
-		case GT:
-			program.addInstr(op, pc, opGt, nil)
-		case SLT:
-			program.addInstr(op, pc, opSlt, nil)
-		case SGT:
-			program.addInstr(op, pc, opSgt, nil)
-		case EQ:
-			program.addInstr(op, pc, opEq, nil)
-		case ISZERO:
-			program.addInstr(op, pc, opIszero, nil)
-		case AND:
-			program.addInstr(op, pc, opAnd, nil)
-		case OR:
-			program.addInstr(op, pc, opOr, nil)
-		case XOR:
-			program.addInstr(op, pc, opXor, nil)
-		case BYTE:
-			program.addInstr(op, pc, opByte, nil)
-		case ADDMOD:
-			program.addInstr(op, pc, opAddmod, nil)
-		case MULMOD:
-			program.addInstr(op, pc, opMulmod, nil)
-		case SHA3:
-			program.addInstr(op, pc, opSha3, nil)
-		case ADDRESS:
-			program.addInstr(op, pc, opAddress, nil)
-		case BALANCE:
-			program.addInstr(op, pc, opBalance, nil)
-		case ORIGIN:
-			program.addInstr(op, pc, opOrigin, nil)
-		case CALLER:
-			program.addInstr(op, pc, opCaller, nil)
-		case CALLVALUE:
-			program.addInstr(op, pc, opCallValue, nil)
-		case CALLDATALOAD:
-			program.addInstr(op, pc, opCalldataLoad, nil)
-		case CALLDATASIZE:
-			program.addInstr(op, pc, opCalldataSize, nil)
-		case CALLDATACOPY:
-			program.addInstr(op, pc, opCalldataCopy, nil)
-		case CODESIZE:
-			program.addInstr(op, pc, opCodeSize, nil)
-		case EXTCODESIZE:
-			program.addInstr(op, pc, opExtCodeSize, nil)
-		case CODECOPY:
-			program.addInstr(op, pc, opCodeCopy, nil)
-		case EXTCODECOPY:
-			program.addInstr(op, pc, opExtCodeCopy, nil)
-		case GASPRICE:
-			program.addInstr(op, pc, opGasprice, nil)
-		case BLOCKHASH:
-			program.addInstr(op, pc, opBlockhash, nil)
-		case COINBASE:
-			program.addInstr(op, pc, opCoinbase, nil)
-		case TIMESTAMP:
-			program.addInstr(op, pc, opTimestamp, nil)
-		case NUMBER:
-			program.addInstr(op, pc, opNumber, nil)
-		case DIFFICULTY:
-			program.addInstr(op, pc, opDifficulty, nil)
-		case GASLIMIT:
-			program.addInstr(op, pc, opGasLimit, nil)
-		case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
-			size := uint64(op - PUSH1 + 1)
-			bytes := getData([]byte(program.code), new(big.Int).SetUint64(pc+1), new(big.Int).SetUint64(size))
-
-			program.addInstr(op, pc, opPush, common.Bytes2Big(bytes))
-
-			pc += size
-
-		case POP:
-			program.addInstr(op, pc, opPop, nil)
-		case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16:
-			program.addInstr(op, pc, opDup, big.NewInt(int64(op-DUP1+1)))
-		case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16:
-			program.addInstr(op, pc, opSwap, big.NewInt(int64(op-SWAP1+2)))
-		case LOG0, LOG1, LOG2, LOG3, LOG4:
-			program.addInstr(op, pc, opLog, big.NewInt(int64(op-LOG0)))
-		case MLOAD:
-			program.addInstr(op, pc, opMload, nil)
-		case MSTORE:
-			program.addInstr(op, pc, opMstore, nil)
-		case MSTORE8:
-			program.addInstr(op, pc, opMstore8, nil)
-		case SLOAD:
-			program.addInstr(op, pc, opSload, nil)
-		case SSTORE:
-			program.addInstr(op, pc, opSstore, nil)
-		case JUMP:
-			program.addInstr(op, pc, opJump, nil)
-		case JUMPI:
-			program.addInstr(op, pc, opJumpi, nil)
-		case JUMPDEST:
-			program.addInstr(op, pc, opJumpdest, nil)
-			program.destinations[pc] = struct{}{}
-		case PC:
-			program.addInstr(op, pc, opPc, big.NewInt(int64(pc)))
-		case MSIZE:
-			program.addInstr(op, pc, opMsize, nil)
-		case GAS:
-			program.addInstr(op, pc, opGas, nil)
-		case CREATE:
-			program.addInstr(op, pc, opCreate, nil)
-		case DELEGATECALL:
-			// Instruction added regardless of homestead phase.
-			// Homestead (and execution of the opcode) is checked during
-			// runtime.
-			program.addInstr(op, pc, opDelegateCall, nil)
-		case CALL:
-			program.addInstr(op, pc, opCall, nil)
-		case CALLCODE:
-			program.addInstr(op, pc, opCallCode, nil)
-		case RETURN:
-			program.addInstr(op, pc, opReturn, nil)
-		case SUICIDE:
-			program.addInstr(op, pc, opSuicide, nil)
-		case STOP: // Stop the contract
-			program.addInstr(op, pc, opStop, nil)
-		default:
-			program.addInstr(op, pc, nil, nil)
-		}
-	}
-
-	optimiseProgram(program)
-
-	return nil
-}
-
-// RunProgram runs the program given the environment and contract and returns an
-// error if the execution failed (non-consensus)
-func RunProgram(program *Program, env *Environment, contract *Contract, input []byte) ([]byte, error) {
-	return runProgram(program, 0, NewMemory(), newstack(), env, contract, input)
-}
-
-func runProgram(program *Program, pcstart uint64, mem *Memory, stack *Stack, env *Environment, contract *Contract, input []byte) ([]byte, error) {
-	contract.Input = input
-
-	var (
-		pc         uint64 = program.mapping[pcstart]
-		instrCount        = 0
-	)
-
-	if glog.V(logger.Debug) {
-		glog.Infof("running JIT program %x\n", program.Id[:4])
-		tstart := time.Now()
-		defer func() {
-			glog.Infof("JIT program %x done. time: %v instrc: %v\n", program.Id[:4], time.Since(tstart), instrCount)
-		}()
-	}
-
-	homestead := env.ChainConfig().IsHomestead(env.BlockNumber)
-	for pc < uint64(len(program.instructions)) {
-		instrCount++
-
-		instr := program.instructions[pc]
-		if instr.Op() == DELEGATECALL && !homestead {
-			return nil, fmt.Errorf("Invalid opcode 0x%x", instr.Op())
-		}
-
-		ret, err := instr.do(program, &pc, env, contract, mem, stack)
-		if err != nil {
-			return nil, err
-		}
-
-		if instr.halts() {
-			return ret, nil
-		}
-	}
-
-	contract.Input = nil
-
-	return nil, nil
-}
-
-// validDest checks if the given destination is a valid one given the
-// destination table of the program
-func validDest(dests map[uint64]struct{}, dest *big.Int) bool {
-	// PC cannot go beyond len(code) and certainly can't be bigger than 64bits.
-	// Don't bother checking for JUMPDEST in that case.
-	if dest.Cmp(bigMaxUint64) > 0 {
-		return false
-	}
-	_, ok := dests[dest.Uint64()]
-	return ok
-}
-
-// jitCalculateGasAndSize calculates the required given the opcode and stack items calculates the new memorysize for
-// the operation. This does not reduce gas or resizes the memory.
-func jitCalculateGasAndSize(env *Environment, contract *Contract, instr instruction, mem *Memory, stack *Stack) (*big.Int, *big.Int, error) {
-	var (
-		gas                 = new(big.Int)
-		newMemSize *big.Int = new(big.Int)
-	)
-	err := jitBaseCheck(instr, stack, gas)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	// stack Check, memory resize & gas phase
-	switch op := instr.op; op {
-	case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16:
-		n := int(op - SWAP1 + 2)
-		err := stack.require(n)
-		if err != nil {
-			return nil, nil, err
-		}
-		gas.Set(GasFastestStep)
-	case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16:
-		n := int(op - DUP1 + 1)
-		err := stack.require(n)
-		if err != nil {
-			return nil, nil, err
-		}
-		gas.Set(GasFastestStep)
-	case LOG0, LOG1, LOG2, LOG3, LOG4:
-		n := int(op - LOG0)
-		err := stack.require(n + 2)
-		if err != nil {
-			return nil, nil, err
-		}
-
-		mSize, mStart := stack.data[stack.len()-2], stack.data[stack.len()-1]
-
-		add := new(big.Int)
-		gas.Add(gas, params.LogGas)
-		gas.Add(gas, add.Mul(big.NewInt(int64(n)), params.LogTopicGas))
-		gas.Add(gas, add.Mul(mSize, params.LogDataGas))
-
-		newMemSize = calcMemSize(mStart, mSize)
-	case EXP:
-		gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(len(stack.data[stack.len()-2].Bytes()))), params.ExpByteGas))
-	case SSTORE:
-		err := stack.require(2)
-		if err != nil {
-			return nil, nil, err
-		}
-
-		var g *big.Int
-		y, x := stack.data[stack.len()-2], stack.data[stack.len()-1]
-		val := env.StateDB.GetState(contract.Address(), common.BigToHash(x))
-
-		// This checks for 3 scenario's and calculates gas accordingly
-		// 1. From a zero-value address to a non-zero value         (NEW VALUE)
-		// 2. From a non-zero value address to a zero-value address (DELETE)
-		// 3. From a non-zero to a non-zero                         (CHANGE)
-		if common.EmptyHash(val) && !common.EmptyHash(common.BigToHash(y)) {
-			g = params.SstoreSetGas
-		} else if !common.EmptyHash(val) && common.EmptyHash(common.BigToHash(y)) {
-			env.StateDB.AddRefund(params.SstoreRefundGas)
-
-			g = params.SstoreClearGas
-		} else {
-			g = params.SstoreResetGas
-		}
-		gas.Set(g)
-	case SUICIDE:
-		if !env.StateDB.HasSuicided(contract.Address()) {
-			env.StateDB.AddRefund(params.SuicideRefundGas)
-		}
-	case MLOAD:
-		newMemSize = calcMemSize(stack.peek(), u256(32))
-	case MSTORE8:
-		newMemSize = calcMemSize(stack.peek(), u256(1))
-	case MSTORE:
-		newMemSize = calcMemSize(stack.peek(), u256(32))
-	case RETURN:
-		newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-2])
-	case SHA3:
-		newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-2])
-
-		words := toWordSize(stack.data[stack.len()-2])
-		gas.Add(gas, words.Mul(words, params.Sha3WordGas))
-	case CALLDATACOPY:
-		newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-3])
-
-		words := toWordSize(stack.data[stack.len()-3])
-		gas.Add(gas, words.Mul(words, params.CopyGas))
-	case CODECOPY:
-		newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-3])
-
-		words := toWordSize(stack.data[stack.len()-3])
-		gas.Add(gas, words.Mul(words, params.CopyGas))
-	case EXTCODECOPY:
-		newMemSize = calcMemSize(stack.data[stack.len()-2], stack.data[stack.len()-4])
-
-		words := toWordSize(stack.data[stack.len()-4])
-		gas.Add(gas, words.Mul(words, params.CopyGas))
-
-	case CREATE:
-		newMemSize = calcMemSize(stack.data[stack.len()-2], stack.data[stack.len()-3])
-	case CALL, CALLCODE:
-		gas.Add(gas, stack.data[stack.len()-1])
-
-		if op == CALL {
-			if !env.StateDB.Exist(common.BigToAddress(stack.data[stack.len()-2])) {
-				gas.Add(gas, params.CallNewAccountGas)
-			}
-		}
-
-		if len(stack.data[stack.len()-3].Bytes()) > 0 {
-			gas.Add(gas, params.CallValueTransferGas)
-		}
-
-		x := calcMemSize(stack.data[stack.len()-6], stack.data[stack.len()-7])
-		y := calcMemSize(stack.data[stack.len()-4], stack.data[stack.len()-5])
-
-		newMemSize = common.BigMax(x, y)
-	case DELEGATECALL:
-		gas.Add(gas, stack.data[stack.len()-1])
-
-		x := calcMemSize(stack.data[stack.len()-5], stack.data[stack.len()-6])
-		y := calcMemSize(stack.data[stack.len()-3], stack.data[stack.len()-4])
-
-		newMemSize = common.BigMax(x, y)
-	}
-	quadMemGas(mem, newMemSize, gas)
-
-	return newMemSize, gas, nil
-}
-
-// jitBaseCheck is the same as baseCheck except it doesn't do the look up in the
-// gas table. This is done during compilation instead.
-func jitBaseCheck(instr instruction, stack *Stack, gas *big.Int) error {
-	err := stack.require(instr.spop)
-	if err != nil {
-		return err
-	}
-
-	if instr.spush > 0 && stack.len()-instr.spop+instr.spush > int(params.StackLimit.Int64()) {
-		return fmt.Errorf("stack limit reached %d (%d)", stack.len(), params.StackLimit.Int64())
-	}
-
-	// nil on gas means no base calculation
-	if instr.gas == nil {
-		return nil
-	}
-
-	gas.Add(gas, instr.gas)
-
-	return nil
-}

core/vm/jit_optimiser.go

@@ -1,123 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package vm
-
-import (
-	"math/big"
-	"time"
-
-	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/logger/glog"
-)
-
-// optimeProgram optimises a JIT program creating segments out of program
-// instructions. Currently covered are multi-pushes and static jumps
-func optimiseProgram(program *Program) {
-	var load []instruction
-
-	var (
-		statsJump = 0
-		statsPush = 0
-	)
-
-	if glog.V(logger.Debug) {
-		glog.Infof("optimising %x\n", program.Id[:4])
-		tstart := time.Now()
-		defer func() {
-			glog.Infof("optimised %x done in %v with JMP: %d PSH: %d\n", program.Id[:4], time.Since(tstart), statsJump, statsPush)
-		}()
-	}
-
-	/*
-		code := Parse(program.code)
-		for _, test := range [][]OpCode{
-			[]OpCode{PUSH, PUSH, ADD},
-			[]OpCode{PUSH, PUSH, SUB},
-			[]OpCode{PUSH, PUSH, MUL},
-			[]OpCode{PUSH, PUSH, DIV},
-		} {
-			matchCount := 0
-			MatchFn(code, test, func(i int) bool {
-				matchCount++
-				return true
-			})
-			fmt.Printf("found %d match count on: %v\n", matchCount, test)
-		}
-	*/
-
-	for i := 0; i < len(program.instructions); i++ {
-		instr := program.instructions[i].(instruction)
-
-		switch {
-		case instr.op.IsPush():
-			load = append(load, instr)
-		case instr.op.IsStaticJump():
-			if len(load) == 0 {
-				continue
-			}
-			// if the push load is greater than 1, finalise that
-			// segment first
-			if len(load) > 2 {
-				seg, size := makePushSeg(load[:len(load)-1])
-				program.instructions[i-size-1] = seg
-				statsPush++
-			}
-			// create a segment consisting of a pre determined
-			// jump, destination and validity.
-			seg := makeStaticJumpSeg(load[len(load)-1].data, program)
-			program.instructions[i-1] = seg
-			statsJump++
-
-			load = nil
-		default:
-			// create a new N pushes segment
-			if len(load) > 1 {
-				seg, size := makePushSeg(load)
-				program.instructions[i-size] = seg
-				statsPush++
-			}
-			load = nil
-		}
-	}
-}
-
-// makePushSeg creates a new push segment from N amount of push instructions
-func makePushSeg(instrs []instruction) (pushSeg, int) {
-	var (
-		data []*big.Int
-		gas  = new(big.Int)
-	)
-
-	for _, instr := range instrs {
-		data = append(data, instr.data)
-		gas.Add(gas, instr.gas)
-	}
-
-	return pushSeg{data, gas}, len(instrs)
-}
-
-// makeStaticJumpSeg creates a new static jump segment from a predefined
-// destination (PUSH, JUMP).
-func makeStaticJumpSeg(to *big.Int, program *Program) jumpSeg {
-	gas := new(big.Int)
-	gas.Add(gas, _baseCheck[PUSH1].gas)
-	gas.Add(gas, _baseCheck[JUMP].gas)
-
-	contract := &Contract{Code: program.code}
-	pos, err := jump(program.mapping, program.destinations, contract, to)
-	return jumpSeg{pos, err, gas}
-}

core/vm/jit_test.go

@@ -1,160 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package vm
-
-import (
-	"math/big"
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/params"
-)
-
-const maxRun = 1000
-
-func TestSegmenting(t *testing.T) {
-	prog := NewProgram([]byte{byte(PUSH1), 0x1, byte(PUSH1), 0x1, 0x0})
-	err := CompileProgram(prog)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if instr, ok := prog.instructions[0].(pushSeg); ok {
-		if len(instr.data) != 2 {
-			t.Error("expected 2 element width pushSegment, got", len(instr.data))
-		}
-	} else {
-		t.Errorf("expected instr[0] to be a pushSeg, got %T", prog.instructions[0])
-	}
-
-	prog = NewProgram([]byte{byte(PUSH1), 0x1, byte(PUSH1), 0x1, byte(JUMP)})
-	err = CompileProgram(prog)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if _, ok := prog.instructions[1].(jumpSeg); ok {
-	} else {
-		t.Errorf("expected instr[1] to be jumpSeg, got %T", prog.instructions[1])
-	}
-
-	prog = NewProgram([]byte{byte(PUSH1), 0x1, byte(PUSH1), 0x1, byte(PUSH1), 0x1, byte(JUMP)})
-	err = CompileProgram(prog)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if instr, ok := prog.instructions[0].(pushSeg); ok {
-		if len(instr.data) != 2 {
-			t.Error("expected 2 element width pushSegment, got", len(instr.data))
-		}
-	} else {
-		t.Errorf("expected instr[0] to be a pushSeg, got %T", prog.instructions[0])
-	}
-	if _, ok := prog.instructions[2].(jumpSeg); ok {
-	} else {
-		t.Errorf("expected instr[1] to be jumpSeg, got %T", prog.instructions[1])
-	}
-}
-
-func TestCompiling(t *testing.T) {
-	prog := NewProgram([]byte{0x60, 0x10})
-	err := CompileProgram(prog)
-	if err != nil {
-		t.Error("didn't expect compile error")
-	}
-
-	if len(prog.instructions) != 1 {
-		t.Error("expected 1 compiled instruction, got", len(prog.instructions))
-	}
-}
-
-func TestResetInput(t *testing.T) {
-	var sender account
-
-	env := NewEnvironment(Context{}, nil, params.TestChainConfig, Config{})
-	contract := NewContract(sender, sender, big.NewInt(100), big.NewInt(10000))
-	contract.CodeAddr = &common.Address{}
-
-	program := NewProgram([]byte{})
-	RunProgram(program, env, contract, []byte{0xbe, 0xef})
-	if contract.Input != nil {
-		t.Errorf("expected input to be nil, got %x", contract.Input)
-	}
-}
-
-func TestPcMappingToInstruction(t *testing.T) {
-	program := NewProgram([]byte{byte(PUSH2), 0xbe, 0xef, byte(ADD)})
-	CompileProgram(program)
-	if program.mapping[3] != 1 {
-		t.Error("expected mapping PC 4 to me instr no. 2, got", program.mapping[4])
-	}
-}
-
-var benchmarks = map[string]vmBench{
-	"pushes": vmBench{
-		false, false, false,
-		common.Hex2Bytes("600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01600a600a01"), nil,
-	},
-}
-
-func BenchmarkPushes(b *testing.B) {
-	runVmBench(benchmarks["pushes"], b)
-}
-
-type vmBench struct {
-	precompile bool // compile prior to executing
-	nojit      bool // ignore jit (sets DisbaleJit = true
-	forcejit   bool // forces the jit, precompile is ignored
-
-	code  []byte
-	input []byte
-}
-
-type account struct{}
-
-func (account) SubBalance(amount *big.Int)                          {}
-func (account) AddBalance(amount *big.Int)                          {}
-func (account) SetAddress(common.Address)                           {}
-func (account) Value() *big.Int                                     { return nil }
-func (account) SetBalance(*big.Int)                                 {}
-func (account) SetNonce(uint64)                                     {}
-func (account) Balance() *big.Int                                   { return nil }
-func (account) Address() common.Address                             { return common.Address{} }
-func (account) ReturnGas(*big.Int)                                  {}
-func (account) SetCode(common.Hash, []byte)                         {}
-func (account) ForEachStorage(cb func(key, value common.Hash) bool) {}
-
-func runVmBench(test vmBench, b *testing.B) {
-	var sender account
-
-	if test.precompile && !test.forcejit {
-		NewProgram(test.code)
-	}
-	env := NewEnvironment(Context{}, nil, params.TestChainConfig, Config{EnableJit: !test.nojit, ForceJit: test.forcejit})
-
-	b.ResetTimer()
-
-	for i := 0; i < b.N; i++ {
-		context := NewContract(sender, sender, big.NewInt(100), big.NewInt(10000))
-		context.Code = test.code
-		context.CodeAddr = &common.Address{}
-		_, err := env.EVM().Run(context, test.input)
-		if err != nil {
-			b.Error(err)
-			b.FailNow()
-		}
-	}
-}

core/vm/jit_util.go

@@ -1,68 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package vm
-
-// Parse parses all opcodes from the given code byte slice. This function
-// performs no error checking and may return non-existing opcodes.
-func Parse(code []byte) (opcodes []OpCode) {
-	for pc := uint64(0); pc < uint64(len(code)); pc++ {
-		op := OpCode(code[pc])
-
-		switch op {
-		case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
-			a := uint64(op) - uint64(PUSH1) + 1
-			pc += a
-			opcodes = append(opcodes, PUSH)
-		case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16:
-			opcodes = append(opcodes, DUP)
-		case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16:
-			opcodes = append(opcodes, SWAP)
-		default:
-			opcodes = append(opcodes, op)
-		}
-	}
-
-	return opcodes
-}
-
-// MatchFn searcher for match in the given input and calls matcheFn if it finds
-// an appropriate match. matcherFn yields the starting position in the input.
-// MatchFn will continue to search for a match until it reaches the end of the
-// buffer or if matcherFn return false.
-func MatchFn(input, match []OpCode, matcherFn func(int) bool) {
-	// short circuit if either input or match is empty or if the match is
-	// greater than the input
-	if len(input) == 0 || len(match) == 0 || len(match) > len(input) {
-		return
-	}
-
-main:
-	for i, op := range input[:len(input)+1-len(match)] {
-		// match first opcode and continue search
-		if op == match[0] {
-			for j := 1; j < len(match); j++ {
-				if input[i+j] != match[j] {
-					continue main
-				}
-			}
-			// check for abort instruction
-			if !matcherFn(i) {
-				return
-			}
-		}
-	}
-}

core/vm/jit_util_test.go

@@ -1,84 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package vm
-
-import "testing"
-
-type matchTest struct {
-	input   []OpCode
-	match   []OpCode
-	matches int
-}
-
-func TestMatchFn(t *testing.T) {
-	tests := []matchTest{
-		matchTest{
-			[]OpCode{PUSH1, PUSH1, MSTORE, JUMP},
-			[]OpCode{PUSH1, MSTORE},
-			1,
-		},
-		matchTest{
-			[]OpCode{PUSH1, PUSH1, MSTORE, JUMP},
-			[]OpCode{PUSH1, MSTORE, PUSH1},
-			0,
-		},
-		matchTest{
-			[]OpCode{},
-			[]OpCode{PUSH1},
-			0,
-		},
-	}
-
-	for i, test := range tests {
-		var matchCount int
-		MatchFn(test.input, test.match, func(i int) bool {
-			matchCount++
-			return true
-		})
-		if matchCount != test.matches {
-			t.Errorf("match count failed on test[%d]: expected %d matches, got %d", i, test.matches, matchCount)
-		}
-	}
-}
-
-type parseTest struct {
-	base   OpCode
-	size   int
-	output OpCode
-}
-
-func TestParser(t *testing.T) {
-	tests := []parseTest{
-		parseTest{PUSH1, 32, PUSH},
-		parseTest{DUP1, 16, DUP},
-		parseTest{SWAP1, 16, SWAP},
-		parseTest{MSTORE, 1, MSTORE},
-	}
-
-	for _, test := range tests {
-		for i := 0; i < test.size; i++ {
-			code := append([]byte{byte(byte(test.base) + byte(i))}, make([]byte, i+1)...)
-			output := Parse(code)
-			if len(output) == 0 {
-				t.Fatal("empty output")
-			}
-			if output[0] != test.output {
-				t.Errorf("%v failed: expected %v but got %v", test.base+OpCode(i), test.output, output[0])
-			}
-		}
-	}
-}

core/vm/jump_table.go

@@ -22,152 +22,838 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 )
 
-type jumpPtr struct {
+type (
-	fn    instrFn
+	executionFunc       func(pc *uint64, env *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error)
+	gasFunc             func(params.GasTable, *EVM, *Contract, *Stack, *Memory, *big.Int) *big.Int
+	stackValidationFunc func(*Stack) error
+	memorySizeFunc      func(*Stack) *big.Int
+)
+
+type operation struct {
+	// op is the operation function
+	execute executionFunc
+	// gasCost is the gas function and returns the gas required for execution
+	gasCost gasFunc
+	// validateStack validates the stack (size) for the operation
+	validateStack stackValidationFunc
+	// memorySize returns the memory size required for the operation
+	memorySize memorySizeFunc
+	// halts indicates whether the operation shoult halt further execution
+	// and return
+	halts bool
+	// jumps indicates whether operation made a jump. This prevents the program
+	// counter from further incrementing.
+	jumps bool
+	// valid is used to check whether the retrieved operation is valid and known
 	valid bool
 }
 
-type vmJumpTable [256]jumpPtr
+var defaultJumpTable = NewJumpTable()
 
-func newJumpTable(ruleset *params.ChainConfig, blockNumber *big.Int) vmJumpTable {
+func NewJumpTable() [256]operation {
-	var jumpTable vmJumpTable
+	return [256]operation{
+		ADD: {
+			execute:       opAdd,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		SUB: {
+			execute:       opSub,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		MUL: {
+			execute:       opMul,
+			gasCost:       constGasFunc(GasFastStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		DIV: {
+			execute:       opDiv,
+			gasCost:       constGasFunc(GasFastStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		SDIV: {
+			execute:       opSdiv,
+			gasCost:       constGasFunc(GasFastStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		MOD: {
+			execute:       opMod,
+			gasCost:       constGasFunc(GasFastStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		SMOD: {
+			execute:       opSmod,
+			gasCost:       constGasFunc(GasFastStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		EXP: {
+			execute:       opExp,
+			gasCost:       gasExp,
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		SIGNEXTEND: {
+			execute:       opSignExtend,
+			gasCost:       constGasFunc(GasFastStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		NOT: {
+			execute:       opNot,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(1, 1),
+			valid:         true,
+		},
+		LT: {
+			execute:       opLt,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		GT: {
+			execute:       opGt,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		SLT: {
+			execute:       opSlt,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		SGT: {
+			execute:       opSgt,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		EQ: {
+			execute:       opEq,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		ISZERO: {
+			execute:       opIszero,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(1, 1),
+			valid:         true,
+		},
+		AND: {
+			execute:       opAnd,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		OR: {
+			execute:       opOr,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		XOR: {
+			execute:       opXor,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		BYTE: {
+			execute:       opByte,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		ADDMOD: {
+			execute:       opAddmod,
+			gasCost:       constGasFunc(GasMidStep),
+			validateStack: makeStackFunc(3, 1),
+			valid:         true,
+		},
+		MULMOD: {
+			execute:       opMulmod,
+			gasCost:       constGasFunc(GasMidStep),
+			validateStack: makeStackFunc(3, 1),
+			valid:         true,
+		},
+		SHA3: {
+			execute:       opSha3,
+			gasCost:       gasSha3,
+			validateStack: makeStackFunc(2, 1),
+			memorySize:    memorySha3,
+			valid:         true,
+		},
+		ADDRESS: {
+			execute:       opAddress,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		BALANCE: {
+			execute:       opBalance,
+			gasCost:       gasBalance,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		ORIGIN: {
+			execute:       opOrigin,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		CALLER: {
+			execute:       opCaller,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		CALLVALUE: {
+			execute:       opCallValue,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		CALLDATALOAD: {
+			execute:       opCalldataLoad,
+			gasCost:       constGasFunc(GasFastestStep),
+			validateStack: makeStackFunc(1, 1),
+			valid:         true,
+		},
+		CALLDATASIZE: {
+			execute:       opCalldataSize,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		CALLDATACOPY: {
+			execute:       opCalldataCopy,
+			gasCost:       gasCalldataCopy,
+			validateStack: makeStackFunc(3, 1),
+			memorySize:    memoryCalldataCopy,
+			valid:         true,
+		},
+		CODESIZE: {
+			execute:       opCodeSize,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		EXTCODESIZE: {
+			execute:       opExtCodeSize,
+			gasCost:       gasExtCodeSize,
+			validateStack: makeStackFunc(1, 1),
+			valid:         true,
+		},
+		CODECOPY: {
+			execute:       opCodeCopy,
+			gasCost:       gasCodeCopy,
+			validateStack: makeStackFunc(3, 0),
+			memorySize:    memoryCodeCopy,
+			valid:         true,
+		},
+		EXTCODECOPY: {
+			execute:       opExtCodeCopy,
+			gasCost:       gasExtCodeCopy,
+			validateStack: makeStackFunc(4, 0),
+			memorySize:    memoryExtCodeCopy,
+			valid:         true,
+		},
+		GASPRICE: {
+			execute:       opGasprice,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		BLOCKHASH: {
+			execute:       opBlockhash,
+			gasCost:       constGasFunc(GasExtStep),
+			validateStack: makeStackFunc(1, 1),
+			valid:         true,
+		},
+		COINBASE: {
+			execute:       opCoinbase,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		TIMESTAMP: {
+			execute:       opTimestamp,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		NUMBER: {
+			execute:       opNumber,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		DIFFICULTY: {
+			execute:       opDifficulty,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		GASLIMIT: {
+			execute:       opGasLimit,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		POP: {
+			execute:       opPop,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(1, 0),
+			valid:         true,
+		},
+		MLOAD: {
+			execute:       opMload,
+			gasCost:       gasMLoad,
+			validateStack: makeStackFunc(1, 1),
+			memorySize:    memoryMLoad,
+			valid:         true,
+		},
+		MSTORE: {
+			execute:       opMstore,
+			gasCost:       gasMStore,
+			validateStack: makeStackFunc(2, 0),
+			memorySize:    memoryMStore,
+			valid:         true,
+		},
+		MSTORE8: {
+			execute:       opMstore8,
+			gasCost:       gasMStore8,
+			memorySize:    memoryMStore8,
+			validateStack: makeStackFunc(2, 0),
 
-	// when initialising a new VM execution we must first check the homestead
+			valid: true,
-	// changes.
+		},
-	if ruleset.IsHomestead(blockNumber) {
+		SLOAD: {
-		jumpTable[DELEGATECALL] = jumpPtr{opDelegateCall, true}
+			execute:       opSload,
+			gasCost:       gasSLoad,
+			validateStack: makeStackFunc(1, 1),
+			valid:         true,
+		},
+		SSTORE: {
+			execute:       opSstore,
+			gasCost:       gasSStore,
+			validateStack: makeStackFunc(2, 0),
+			valid:         true,
+		},
+		JUMPDEST: {
+			execute:       opJumpdest,
+			gasCost:       constGasFunc(params.JumpdestGas),
+			validateStack: makeStackFunc(0, 0),
+			valid:         true,
+		},
+		PC: {
+			execute:       opPc,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		MSIZE: {
+			execute:       opMsize,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		GAS: {
+			execute:       opGas,
+			gasCost:       constGasFunc(GasQuickStep),
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		CREATE: {
+			execute:       opCreate,
+			gasCost:       gasCreate,
+			validateStack: makeStackFunc(3, 1),
+			memorySize:    memoryCreate,
+			valid:         true,
+		},
+		CALL: {
+			execute:       opCall,
+			gasCost:       gasCall,
+			validateStack: makeStackFunc(7, 1),
+			memorySize:    memoryCall,
+			valid:         true,
+		},
+		CALLCODE: {
+			execute:       opCallCode,
+			gasCost:       gasCallCode,
+			validateStack: makeStackFunc(7, 1),
+			memorySize:    memoryCall,
+			valid:         true,
+		},
+		DELEGATECALL: {
+			execute:       opDelegateCall,
+			gasCost:       gasDelegateCall,
+			validateStack: makeStackFunc(6, 1),
+			memorySize:    memoryDelegateCall,
+			valid:         true,
+		},
+		RETURN: {
+			execute:       opReturn,
+			gasCost:       gasReturn,
+			validateStack: makeStackFunc(2, 0),
+			memorySize:    memoryReturn,
+			halts:         true,
+			valid:         true,
+		},
+		SUICIDE: {
+			execute:       opSuicide,
+			gasCost:       gasSuicide,
+			validateStack: makeStackFunc(1, 0),
+			halts:         true,
+			valid:         true,
+		},
+		JUMP: {
+			execute:       opJump,
+			gasCost:       constGasFunc(GasMidStep),
+			validateStack: makeStackFunc(1, 0),
+			jumps:         true,
+			valid:         true,
+		},
+		JUMPI: {
+			execute:       opJumpi,
+			gasCost:       constGasFunc(GasSlowStep),
+			validateStack: makeStackFunc(2, 0),
+			jumps:         true,
+			valid:         true,
+		},
+		STOP: {
+			execute:       opStop,
+			gasCost:       constGasFunc(Zero),
+			validateStack: makeStackFunc(0, 0),
+			halts:         true,
+			valid:         true,
+		},
+		LOG0: {
+			execute:       makeLog(0),
+			gasCost:       makeGasLog(0),
+			validateStack: makeStackFunc(2, 0),
+			memorySize:    memoryLog,
+			valid:         true,
+		},
+		LOG1: {
+			execute:       makeLog(1),
+			gasCost:       makeGasLog(1),
+			validateStack: makeStackFunc(3, 0),
+			memorySize:    memoryLog,
+			valid:         true,
+		},
+		LOG2: {
+			execute:       makeLog(2),
+			gasCost:       makeGasLog(2),
+			validateStack: makeStackFunc(4, 0),
+			memorySize:    memoryLog,
+			valid:         true,
+		},
+		LOG3: {
+			execute:       makeLog(3),
+			gasCost:       makeGasLog(3),
+			validateStack: makeStackFunc(5, 0),
+			memorySize:    memoryLog,
+			valid:         true,
+		},
+		LOG4: {
+			execute:       makeLog(4),
+			gasCost:       makeGasLog(4),
+			validateStack: makeStackFunc(6, 0),
+			memorySize:    memoryLog,
+			valid:         true,
+		},
+		SWAP1: {
+			execute:       makeSwap(1),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(2, 0),
+			valid:         true,
+		},
+		SWAP2: {
+			execute:       makeSwap(2),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(3, 0),
+			valid:         true,
+		},
+		SWAP3: {
+			execute:       makeSwap(3),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(4, 0),
+			valid:         true,
+		},
+		SWAP4: {
+			execute:       makeSwap(4),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(5, 0),
+			valid:         true,
+		},
+		SWAP5: {
+			execute:       makeSwap(5),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(6, 0),
+			valid:         true,
+		},
+		SWAP6: {
+			execute:       makeSwap(6),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(7, 0),
+			valid:         true,
+		},
+		SWAP7: {
+			execute:       makeSwap(7),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(8, 0),
+			valid:         true,
+		},
+		SWAP8: {
+			execute:       makeSwap(8),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(9, 0),
+			valid:         true,
+		},
+		SWAP9: {
+			execute:       makeSwap(9),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(10, 0),
+			valid:         true,
+		},
+		SWAP10: {
+			execute:       makeSwap(10),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(11, 0),
+			valid:         true,
+		},
+		SWAP11: {
+			execute:       makeSwap(11),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(12, 0),
+			valid:         true,
+		},
+		SWAP12: {
+			execute:       makeSwap(12),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(13, 0),
+			valid:         true,
+		},
+		SWAP13: {
+			execute:       makeSwap(13),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(14, 0),
+			valid:         true,
+		},
+		SWAP14: {
+			execute:       makeSwap(14),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(15, 0),
+			valid:         true,
+		},
+		SWAP15: {
+			execute:       makeSwap(15),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(16, 0),
+			valid:         true,
+		},
+		SWAP16: {
+			execute:       makeSwap(16),
+			gasCost:       gasSwap,
+			validateStack: makeStackFunc(17, 0),
+			valid:         true,
+		},
+		PUSH1: {
+			execute:       makePush(1, big.NewInt(1)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH2: {
+			execute:       makePush(2, big.NewInt(2)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH3: {
+			execute:       makePush(3, big.NewInt(3)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH4: {
+			execute:       makePush(4, big.NewInt(4)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH5: {
+			execute:       makePush(5, big.NewInt(5)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH6: {
+			execute:       makePush(6, big.NewInt(6)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH7: {
+			execute:       makePush(7, big.NewInt(7)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH8: {
+			execute:       makePush(8, big.NewInt(8)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH9: {
+			execute:       makePush(9, big.NewInt(9)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH10: {
+			execute:       makePush(10, big.NewInt(10)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH11: {
+			execute:       makePush(11, big.NewInt(11)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH12: {
+			execute:       makePush(12, big.NewInt(12)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH13: {
+			execute:       makePush(13, big.NewInt(13)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH14: {
+			execute:       makePush(14, big.NewInt(14)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH15: {
+			execute:       makePush(15, big.NewInt(15)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH16: {
+			execute:       makePush(16, big.NewInt(16)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH17: {
+			execute:       makePush(17, big.NewInt(17)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH18: {
+			execute:       makePush(18, big.NewInt(18)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH19: {
+			execute:       makePush(19, big.NewInt(19)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH20: {
+			execute:       makePush(20, big.NewInt(20)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH21: {
+			execute:       makePush(21, big.NewInt(21)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH22: {
+			execute:       makePush(22, big.NewInt(22)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH23: {
+			execute:       makePush(23, big.NewInt(23)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH24: {
+			execute:       makePush(24, big.NewInt(24)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH25: {
+			execute:       makePush(25, big.NewInt(25)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH26: {
+			execute:       makePush(26, big.NewInt(26)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH27: {
+			execute:       makePush(27, big.NewInt(27)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH28: {
+			execute:       makePush(28, big.NewInt(28)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH29: {
+			execute:       makePush(29, big.NewInt(29)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH30: {
+			execute:       makePush(30, big.NewInt(30)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH31: {
+			execute:       makePush(31, big.NewInt(31)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		PUSH32: {
+			execute:       makePush(32, big.NewInt(32)),
+			gasCost:       gasPush,
+			validateStack: makeStackFunc(0, 1),
+			valid:         true,
+		},
+		DUP1: {
+			execute:       makeDup(1),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(1, 1),
+			valid:         true,
+		},
+		DUP2: {
+			execute:       makeDup(2),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(2, 1),
+			valid:         true,
+		},
+		DUP3: {
+			execute:       makeDup(3),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(3, 1),
+			valid:         true,
+		},
+		DUP4: {
+			execute:       makeDup(4),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(4, 1),
+			valid:         true,
+		},
+		DUP5: {
+			execute:       makeDup(5),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(5, 1),
+			valid:         true,
+		},
+		DUP6: {
+			execute:       makeDup(6),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(6, 1),
+			valid:         true,
+		},
+		DUP7: {
+			execute:       makeDup(7),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(7, 1),
+			valid:         true,
+		},
+		DUP8: {
+			execute:       makeDup(8),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(8, 1),
+			valid:         true,
+		},
+		DUP9: {
+			execute:       makeDup(9),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(9, 1),
+			valid:         true,
+		},
+		DUP10: {
+			execute:       makeDup(10),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(10, 1),
+			valid:         true,
+		},
+		DUP11: {
+			execute:       makeDup(11),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(11, 1),
+			valid:         true,
+		},
+		DUP12: {
+			execute:       makeDup(12),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(12, 1),
+			valid:         true,
+		},
+		DUP13: {
+			execute:       makeDup(13),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(13, 1),
+			valid:         true,
+		},
+		DUP14: {
+			execute:       makeDup(14),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(14, 1),
+			valid:         true,
+		},
+		DUP15: {
+			execute:       makeDup(15),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(15, 1),
+			valid:         true,
+		},
+		DUP16: {
+			execute:       makeDup(16),
+			gasCost:       gasDup,
+			validateStack: makeStackFunc(16, 1),
+			valid:         true,
+		},
 	}
-
-	jumpTable[ADD] = jumpPtr{opAdd, true}
-	jumpTable[SUB] = jumpPtr{opSub, true}
-	jumpTable[MUL] = jumpPtr{opMul, true}
-	jumpTable[DIV] = jumpPtr{opDiv, true}
-	jumpTable[SDIV] = jumpPtr{opSdiv, true}
-	jumpTable[MOD] = jumpPtr{opMod, true}
-	jumpTable[SMOD] = jumpPtr{opSmod, true}
-	jumpTable[EXP] = jumpPtr{opExp, true}
-	jumpTable[SIGNEXTEND] = jumpPtr{opSignExtend, true}
-	jumpTable[NOT] = jumpPtr{opNot, true}
-	jumpTable[LT] = jumpPtr{opLt, true}
-	jumpTable[GT] = jumpPtr{opGt, true}
-	jumpTable[SLT] = jumpPtr{opSlt, true}
-	jumpTable[SGT] = jumpPtr{opSgt, true}
-	jumpTable[EQ] = jumpPtr{opEq, true}
-	jumpTable[ISZERO] = jumpPtr{opIszero, true}
-	jumpTable[AND] = jumpPtr{opAnd, true}
-	jumpTable[OR] = jumpPtr{opOr, true}
-	jumpTable[XOR] = jumpPtr{opXor, true}
-	jumpTable[BYTE] = jumpPtr{opByte, true}
-	jumpTable[ADDMOD] = jumpPtr{opAddmod, true}
-	jumpTable[MULMOD] = jumpPtr{opMulmod, true}
-	jumpTable[SHA3] = jumpPtr{opSha3, true}
-	jumpTable[ADDRESS] = jumpPtr{opAddress, true}
-	jumpTable[BALANCE] = jumpPtr{opBalance, true}
-	jumpTable[ORIGIN] = jumpPtr{opOrigin, true}
-	jumpTable[CALLER] = jumpPtr{opCaller, true}
-	jumpTable[CALLVALUE] = jumpPtr{opCallValue, true}
-	jumpTable[CALLDATALOAD] = jumpPtr{opCalldataLoad, true}
-	jumpTable[CALLDATASIZE] = jumpPtr{opCalldataSize, true}
-	jumpTable[CALLDATACOPY] = jumpPtr{opCalldataCopy, true}
-	jumpTable[CODESIZE] = jumpPtr{opCodeSize, true}
-	jumpTable[EXTCODESIZE] = jumpPtr{opExtCodeSize, true}
-	jumpTable[CODECOPY] = jumpPtr{opCodeCopy, true}
-	jumpTable[EXTCODECOPY] = jumpPtr{opExtCodeCopy, true}
-	jumpTable[GASPRICE] = jumpPtr{opGasprice, true}
-	jumpTable[BLOCKHASH] = jumpPtr{opBlockhash, true}
-	jumpTable[COINBASE] = jumpPtr{opCoinbase, true}
-	jumpTable[TIMESTAMP] = jumpPtr{opTimestamp, true}
-	jumpTable[NUMBER] = jumpPtr{opNumber, true}
-	jumpTable[DIFFICULTY] = jumpPtr{opDifficulty, true}
-	jumpTable[GASLIMIT] = jumpPtr{opGasLimit, true}
-	jumpTable[POP] = jumpPtr{opPop, true}
-	jumpTable[MLOAD] = jumpPtr{opMload, true}
-	jumpTable[MSTORE] = jumpPtr{opMstore, true}
-	jumpTable[MSTORE8] = jumpPtr{opMstore8, true}
-	jumpTable[SLOAD] = jumpPtr{opSload, true}
-	jumpTable[SSTORE] = jumpPtr{opSstore, true}
-	jumpTable[JUMPDEST] = jumpPtr{opJumpdest, true}
-	jumpTable[PC] = jumpPtr{nil, true}
-	jumpTable[MSIZE] = jumpPtr{opMsize, true}
-	jumpTable[GAS] = jumpPtr{opGas, true}
-	jumpTable[CREATE] = jumpPtr{opCreate, true}
-	jumpTable[CALL] = jumpPtr{opCall, true}
-	jumpTable[CALLCODE] = jumpPtr{opCallCode, true}
-	jumpTable[LOG0] = jumpPtr{makeLog(0), true}
-	jumpTable[LOG1] = jumpPtr{makeLog(1), true}
-	jumpTable[LOG2] = jumpPtr{makeLog(2), true}
-	jumpTable[LOG3] = jumpPtr{makeLog(3), true}
-	jumpTable[LOG4] = jumpPtr{makeLog(4), true}
-	jumpTable[SWAP1] = jumpPtr{makeSwap(1), true}
-	jumpTable[SWAP2] = jumpPtr{makeSwap(2), true}
-	jumpTable[SWAP3] = jumpPtr{makeSwap(3), true}
-	jumpTable[SWAP4] = jumpPtr{makeSwap(4), true}
-	jumpTable[SWAP5] = jumpPtr{makeSwap(5), true}
-	jumpTable[SWAP6] = jumpPtr{makeSwap(6), true}
-	jumpTable[SWAP7] = jumpPtr{makeSwap(7), true}
-	jumpTable[SWAP8] = jumpPtr{makeSwap(8), true}
-	jumpTable[SWAP9] = jumpPtr{makeSwap(9), true}
-	jumpTable[SWAP10] = jumpPtr{makeSwap(10), true}
-	jumpTable[SWAP11] = jumpPtr{makeSwap(11), true}
-	jumpTable[SWAP12] = jumpPtr{makeSwap(12), true}
-	jumpTable[SWAP13] = jumpPtr{makeSwap(13), true}
-	jumpTable[SWAP14] = jumpPtr{makeSwap(14), true}
-	jumpTable[SWAP15] = jumpPtr{makeSwap(15), true}
-	jumpTable[SWAP16] = jumpPtr{makeSwap(16), true}
-	jumpTable[PUSH1] = jumpPtr{makePush(1, big.NewInt(1)), true}
-	jumpTable[PUSH2] = jumpPtr{makePush(2, big.NewInt(2)), true}
-	jumpTable[PUSH3] = jumpPtr{makePush(3, big.NewInt(3)), true}
-	jumpTable[PUSH4] = jumpPtr{makePush(4, big.NewInt(4)), true}
-	jumpTable[PUSH5] = jumpPtr{makePush(5, big.NewInt(5)), true}
-	jumpTable[PUSH6] = jumpPtr{makePush(6, big.NewInt(6)), true}
-	jumpTable[PUSH7] = jumpPtr{makePush(7, big.NewInt(7)), true}
-	jumpTable[PUSH8] = jumpPtr{makePush(8, big.NewInt(8)), true}
-	jumpTable[PUSH9] = jumpPtr{makePush(9, big.NewInt(9)), true}
-	jumpTable[PUSH10] = jumpPtr{makePush(10, big.NewInt(10)), true}
-	jumpTable[PUSH11] = jumpPtr{makePush(11, big.NewInt(11)), true}
-	jumpTable[PUSH12] = jumpPtr{makePush(12, big.NewInt(12)), true}
-	jumpTable[PUSH13] = jumpPtr{makePush(13, big.NewInt(13)), true}
-	jumpTable[PUSH14] = jumpPtr{makePush(14, big.NewInt(14)), true}
-	jumpTable[PUSH15] = jumpPtr{makePush(15, big.NewInt(15)), true}
-	jumpTable[PUSH16] = jumpPtr{makePush(16, big.NewInt(16)), true}
-	jumpTable[PUSH17] = jumpPtr{makePush(17, big.NewInt(17)), true}
-	jumpTable[PUSH18] = jumpPtr{makePush(18, big.NewInt(18)), true}
-	jumpTable[PUSH19] = jumpPtr{makePush(19, big.NewInt(19)), true}
-	jumpTable[PUSH20] = jumpPtr{makePush(20, big.NewInt(20)), true}
-	jumpTable[PUSH21] = jumpPtr{makePush(21, big.NewInt(21)), true}
-	jumpTable[PUSH22] = jumpPtr{makePush(22, big.NewInt(22)), true}
-	jumpTable[PUSH23] = jumpPtr{makePush(23, big.NewInt(23)), true}
-	jumpTable[PUSH24] = jumpPtr{makePush(24, big.NewInt(24)), true}
-	jumpTable[PUSH25] = jumpPtr{makePush(25, big.NewInt(25)), true}
-	jumpTable[PUSH26] = jumpPtr{makePush(26, big.NewInt(26)), true}
-	jumpTable[PUSH27] = jumpPtr{makePush(27, big.NewInt(27)), true}
-	jumpTable[PUSH28] = jumpPtr{makePush(28, big.NewInt(28)), true}
-	jumpTable[PUSH29] = jumpPtr{makePush(29, big.NewInt(29)), true}
-	jumpTable[PUSH30] = jumpPtr{makePush(30, big.NewInt(30)), true}
-	jumpTable[PUSH31] = jumpPtr{makePush(31, big.NewInt(31)), true}
-	jumpTable[PUSH32] = jumpPtr{makePush(32, big.NewInt(32)), true}
-	jumpTable[DUP1] = jumpPtr{makeDup(1), true}
-	jumpTable[DUP2] = jumpPtr{makeDup(2), true}
-	jumpTable[DUP3] = jumpPtr{makeDup(3), true}
-	jumpTable[DUP4] = jumpPtr{makeDup(4), true}
-	jumpTable[DUP5] = jumpPtr{makeDup(5), true}
-	jumpTable[DUP6] = jumpPtr{makeDup(6), true}
-	jumpTable[DUP7] = jumpPtr{makeDup(7), true}
-	jumpTable[DUP8] = jumpPtr{makeDup(8), true}
-	jumpTable[DUP9] = jumpPtr{makeDup(9), true}
-	jumpTable[DUP10] = jumpPtr{makeDup(10), true}
-	jumpTable[DUP11] = jumpPtr{makeDup(11), true}
-	jumpTable[DUP12] = jumpPtr{makeDup(12), true}
-	jumpTable[DUP13] = jumpPtr{makeDup(13), true}
-	jumpTable[DUP14] = jumpPtr{makeDup(14), true}
-	jumpTable[DUP15] = jumpPtr{makeDup(15), true}
-	jumpTable[DUP16] = jumpPtr{makeDup(16), true}
-
-	jumpTable[RETURN] = jumpPtr{nil, true}
-	jumpTable[SUICIDE] = jumpPtr{nil, true}
-	jumpTable[JUMP] = jumpPtr{nil, true}
-	jumpTable[JUMPI] = jumpPtr{nil, true}
-	jumpTable[STOP] = jumpPtr{nil, true}
-
-	return jumpTable
 }

core/vm/jump_table_test.go

@@ -1,38 +0,0 @@
-// Copyright 2016 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package vm
-
-import (
-	"math/big"
-	"testing"
-
-	"github.com/ethereum/go-ethereum/params"
-)
-
-func TestInit(t *testing.T) {
-	jumpTable := newJumpTable(&params.ChainConfig{HomesteadBlock: big.NewInt(1)}, big.NewInt(0))
-	if jumpTable[DELEGATECALL].valid {
-		t.Error("Expected DELEGATECALL not to be present")
-	}
-
-	for _, n := range []int64{1, 2, 100} {
-		jumpTable := newJumpTable(&params.ChainConfig{HomesteadBlock: big.NewInt(1)}, big.NewInt(n))
-		if !jumpTable[DELEGATECALL].valid {
-			t.Error("Expected DELEGATECALL to be present for block", n)
-		}
-	}
-}

core/vm/logger.go

@@ -45,7 +45,7 @@ type LogConfig struct {
 	Limit          int  // maximum length of output, but zero means unlimited
 }
 
-// StructLog is emitted to the Environment each cycle and lists information about the current internal state
+// StructLog is emitted to the EVM each cycle and lists information about the current internal state
 // prior to the execution of the statement.
 type StructLog struct {
 	Pc      uint64
@@ -65,7 +65,7 @@ type StructLog struct {
 // Note that reference types are actual VM data structures; make copies
 // if you need to retain them beyond the current call.
 type Tracer interface {
-	CaptureState(env *Environment, pc uint64, op OpCode, gas, cost *big.Int, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error
+	CaptureState(env *EVM, pc uint64, op OpCode, gas, cost *big.Int, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error
 }
 
 // StructLogger is an EVM state logger and implements Tracer.
@@ -94,10 +94,10 @@ func NewStructLogger(cfg *LogConfig) *StructLogger {
 // captureState logs a new structured log message and pushes it out to the environment
 //
 // captureState also tracks SSTORE ops to track dirty values.
-func (l *StructLogger) CaptureState(env *Environment, pc uint64, op OpCode, gas, cost *big.Int, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error {
+func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost *big.Int, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error {
 	// check if already accumulated the specified number of logs
 	if l.cfg.Limit != 0 && l.cfg.Limit <= len(l.logs) {
-		return TraceLimitReachedError
+		return ErrTraceLimitReached
 	}
 
 	// initialise new changed values storage container for this contract
@@ -155,7 +155,7 @@ func (l *StructLogger) CaptureState(env *Environment, pc uint64, op OpCode, gas,
 		}
 	}
 	// create a new snaptshot of the EVM.
-	log := StructLog{pc, op, new(big.Int).Set(gas), cost, mem, stck, storage, env.Depth, err}
+	log := StructLog{pc, op, new(big.Int).Set(gas), cost, mem, stck, storage, env.depth, err}
 
 	l.logs = append(l.logs, log)
 	return nil

core/vm/logger_test.go

@@ -52,7 +52,7 @@ func (d dummyStateDB) GetAccount(common.Address) Account {
 
 func TestStoreCapture(t *testing.T) {
 	var (
-		env      = NewEnvironment(Context{}, nil, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
+		env      = NewEVM(Context{}, nil, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
 		logger   = NewStructLogger(nil)
 		mem      = NewMemory()
 		stack    = newstack()
@@ -79,7 +79,7 @@ func TestStorageCapture(t *testing.T) {
 	var (
 		ref      = &dummyContractRef{}
 		contract = NewContract(ref, ref, new(big.Int), new(big.Int))
-		env      = NewEnvironment(Context{}, dummyStateDB{ref: ref}, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
+		env      = NewEVM(Context{}, dummyStateDB{ref: ref}, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
 		logger   = NewStructLogger(nil)
 		mem      = NewMemory()
 		stack    = newstack()