Provide additional data on deployment

cli/testdata/deploy/main.go

@@ -13,7 +13,7 @@ var key = "key"
 
 const mgmtKey = "mgmt"
 
-func _deploy(isUpdate bool) {
+func _deploy(data interface{}, isUpdate bool) {
 	var value string
 
 	ctx := storage.GetContext()

cli/testdata/deploy/sub/put.go

@@ -4,7 +4,7 @@ import "github.com/nspcc-dev/neo-go/pkg/interop/storage"
 
 var Key = "sub"
 
-func _deploy(isUpdate bool) {
+func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 	value := "sub create"
 	if isUpdate {

examples/runtime/runtime.go

@@ -16,7 +16,7 @@ func init() {
 	trigger = runtime.GetTrigger()
 }
 
-func _deploy(isUpdate bool) {
+func _deploy(_ interface{}, isUpdate bool) {
 	if isUpdate {
 		Log("_deploy method called before contract update")
 		return

examples/timer/timer.go

@@ -25,7 +25,7 @@ func init() {
 	ctx = storage.GetContext()
 }
 
-func _deploy(isUpdate bool) {
+func _deploy(_ interface{}, isUpdate bool) {
 	if isUpdate {
 		ticksLeft := storage.Get(ctx, ticksKey).(int) + 1
 		storage.Put(ctx, ticksKey, ticksLeft)

pkg/compiler/codegen.go

@@ -336,11 +336,11 @@ func (c *codegen) convertInitFuncs(f *ast.File, pkg *types.Package, seenBefore b
 
 func isDeployFunc(decl *ast.FuncDecl) bool {
 	if decl.Name.Name != "_deploy" || decl.Recv != nil ||
-		decl.Type.Params.NumFields() != 1 ||
+		decl.Type.Params.NumFields() != 2 ||
 		decl.Type.Results.NumFields() != 0 {
 		return false
 	}
-	typ, ok := decl.Type.Params.List[0].Type.(*ast.Ident)
+	typ, ok := decl.Type.Params.List[1].Type.(*ast.Ident)
 	return ok && typ.Name == "bool"
 }
 
@@ -1869,7 +1869,7 @@ func (c *codegen) compile(info *buildInfo, pkg *loader.PackageInfo) error {
 
 	hasDeploy := deployLocals > -1
 	if hasDeploy {
-		emit.Instruction(c.prog.BinWriter, opcode.INITSLOT, []byte{byte(deployLocals), 1})
+		emit.Instruction(c.prog.BinWriter, opcode.INITSLOT, []byte{byte(deployLocals), 2})
 		c.convertDeployFuncs()
 		c.deployEndOffset = c.prog.Len()
 		emit.Opcodes(c.prog.BinWriter, opcode.RET)

pkg/compiler/debug.go

@@ -150,11 +150,18 @@ func (c *codegen) emitDebugInfo(contract []byte) *DebugInfo {
 				Start: uint16(c.initEndOffset + 1),
 				End:   uint16(c.deployEndOffset),
 			},
-			Parameters: []DebugParam{{
-				Name:   "isUpdate",
-				Type:   "Boolean",
-				TypeSC: smartcontract.BoolType,
-			}},
+			Parameters: []DebugParam{
+				{
+					Name:   "data",
+					Type:   "Any",
+					TypeSC: smartcontract.AnyType,
+				},
+				{
+					Name:   "isUpdate",
+					Type:   "Boolean",
+					TypeSC: smartcontract.BoolType,
+				},
+			},
 			ReturnType:   "Void",
 			ReturnTypeSC: smartcontract.VoidType,
 			SeqPoints:    c.sequencePoints[manifest.MethodDeploy],

pkg/compiler/debug_test.go

@@ -53,7 +53,7 @@ func MethodParams(addr interop.Hash160, h interop.Hash256,
 type MyStruct struct {}
 func (ms MyStruct) MethodOnStruct() { }
 func (ms *MyStruct) MethodOnPointerToStruct() { }
-func _deploy(isUpdate bool) {}
+func _deploy(data interface{}, isUpdate bool) {}
 `
 
 	info, err := getBuildInfo("foo.go", src)
@@ -100,11 +100,18 @@ func _deploy(isUpdate bool) {}
 
 	t.Run("param types", func(t *testing.T) {
 		paramTypes := map[string][]DebugParam{
-			"_deploy": {{
-				Name:   "isUpdate",
-				Type:   "Boolean",
-				TypeSC: smartcontract.BoolType,
-			}},
+			"_deploy": {
+				{
+					Name:   "data",
+					Type:   "Any",
+					TypeSC: smartcontract.AnyType,
+				},
+				{
+					Name:   "isUpdate",
+					Type:   "Boolean",
+					TypeSC: smartcontract.BoolType,
+				},
+			},
 			"MethodInt": {{
 				Name:   "a",
 				Type:   "ByteString",
@@ -160,6 +167,7 @@ func _deploy(isUpdate bool) {}
 						Name:   "_deploy",
 						Offset: 0,
 						Parameters: []manifest.Parameter{
+							manifest.NewParameter("data", smartcontract.AnyType),
 							manifest.NewParameter("isUpdate", smartcontract.BoolType),
 						},
 						ReturnType: smartcontract.VoidType,

pkg/core/interop/context.go

@@ -104,15 +104,21 @@ type ContractMD struct {
 	ContractID int32
 	NEF        nef.File
 	Hash       util.Uint160
-	Methods    map[string]MethodAndPrice
+	Methods    map[MethodAndArgCount]MethodAndPrice
+}
+
+// MethodAndArgCount represents method's signature.
+type MethodAndArgCount struct {
+	Name     string
+	ArgCount int
 }
 
 // NewContractMD returns Contract with the specified list of methods.
 func NewContractMD(name string, id int32) *ContractMD {
 	c := &ContractMD{
 		Name:       name,
 		ContractID: id,
-		Methods:    make(map[string]MethodAndPrice),
+		Methods:    make(map[MethodAndArgCount]MethodAndPrice),
 	}
 
 	// NEF is now stored in contract state and affects state dump.
@@ -129,10 +135,35 @@ func NewContractMD(name string, id int32) *ContractMD {
 
 // AddMethod adds new method to a native contract.
 func (c *ContractMD) AddMethod(md *MethodAndPrice, desc *manifest.Method) {
-	c.Manifest.ABI.Methods = append(c.Manifest.ABI.Methods, *desc)
 	md.MD = desc
 	desc.Safe = md.RequiredFlags&(callflag.All^callflag.ReadOnly) == 0
-	c.Methods[desc.Name] = *md
+
+	index := sort.Search(len(c.Manifest.ABI.Methods), func(i int) bool {
+		md := c.Manifest.ABI.Methods[i]
+		if md.Name != desc.Name {
+			return md.Name >= desc.Name
+		}
+		return len(md.Parameters) > len(desc.Parameters)
+	})
+	c.Manifest.ABI.Methods = append(c.Manifest.ABI.Methods, manifest.Method{})
+	copy(c.Manifest.ABI.Methods[index+1:], c.Manifest.ABI.Methods[index:])
+	c.Manifest.ABI.Methods[index] = *desc
+
+	key := MethodAndArgCount{
+		Name:     desc.Name,
+		ArgCount: len(desc.Parameters),
+	}
+	c.Methods[key] = *md
+}
+
+// GetMethod returns method `name` with specified number of parameters.
+func (c *ContractMD) GetMethod(name string, paramCount int) (MethodAndPrice, bool) {
+	key := MethodAndArgCount{
+		Name:     name,
+		ArgCount: paramCount,
+	}
+	mp, ok := c.Methods[key]
+	return mp, ok
 }
 
 // AddEvent adds new event to a native contract.

pkg/core/interop_system_test.go

@@ -479,10 +479,16 @@ func getTestContractState(bc *Blockchain) (*state.Contract, *state.Contract) {
 	emit.Opcodes(w.BinWriter, opcode.LDSFLD0, opcode.SUB,
 		opcode.CONVERT, opcode.Opcode(stackitem.BooleanT), opcode.RET)
 	deployOff := w.Len()
-	emit.Opcodes(w.BinWriter, opcode.JMPIF, 2+8+3)
-	emit.String(w.BinWriter, "create")
-	emit.Opcodes(w.BinWriter, opcode.CALL, 3+8+3, opcode.RET)
-	emit.String(w.BinWriter, "update")
+	emit.Opcodes(w.BinWriter, opcode.SWAP, opcode.JMPIF, 2+8+1+1+5+3)
+	emit.String(w.BinWriter, "create")                            // 8 bytes
+	emit.Int(w.BinWriter, 2)                                      // 1 byte
+	emit.Opcodes(w.BinWriter, opcode.PACK)                        // 1 byte
+	emit.Syscall(w.BinWriter, interopnames.SystemBinarySerialize) // 5 bytes
+	emit.Opcodes(w.BinWriter, opcode.CALL, 3+8+1+1+5+3, opcode.RET)
+	emit.String(w.BinWriter, "update")                            // 8 bytes
+	emit.Int(w.BinWriter, 2)                                      // 1 byte
+	emit.Opcodes(w.BinWriter, opcode.PACK)                        // 1 byte
+	emit.Syscall(w.BinWriter, interopnames.SystemBinarySerialize) // 5 bytes
 	emit.Opcodes(w.BinWriter, opcode.CALL, 3, opcode.RET)
 	putValOff := w.Len()
 	emit.String(w.BinWriter, "initial")
@@ -501,6 +507,9 @@ func getTestContractState(bc *Blockchain) (*state.Contract, *state.Contract) {
 	emit.String(w.BinWriter, "LastPayment")
 	emit.Syscall(w.BinWriter, interopnames.SystemRuntimeNotify)
 	emit.Opcodes(w.BinWriter, opcode.RET)
+	update3Off := w.Len()
+	emit.Int(w.BinWriter, 3)
+	emit.Opcodes(w.BinWriter, opcode.JMP, 2+1)
 	updateOff := w.Len()
 	emit.Int(w.BinWriter, 2)
 	emit.Opcodes(w.BinWriter, opcode.PACK)
@@ -588,6 +597,7 @@ func getTestContractState(bc *Blockchain) (*state.Contract, *state.Contract) {
 			Name:   manifest.MethodDeploy,
 			Offset: deployOff,
 			Parameters: []manifest.Parameter{
+				manifest.NewParameter("data", smartcontract.AnyType),
 				manifest.NewParameter("isUpdate", smartcontract.BoolType),
 			},
 			ReturnType: smartcontract.VoidType,
@@ -624,6 +634,16 @@ func getTestContractState(bc *Blockchain) (*state.Contract, *state.Contract) {
 			},
 			ReturnType: smartcontract.VoidType,
 		},
+		{
+			Name:   "update",
+			Offset: update3Off,
+			Parameters: []manifest.Parameter{
+				manifest.NewParameter("nef", smartcontract.ByteArrayType),
+				manifest.NewParameter("manifest", smartcontract.ByteArrayType),
+				manifest.NewParameter("data", smartcontract.AnyType),
+			},
+			ReturnType: smartcontract.VoidType,
+		},
 		{
 			Name:       "destroy",
 			Offset:     destroyOff,

pkg/core/native/interop.go

@@ -28,7 +28,7 @@ func Call(ic *interop.Context) error {
 		return errors.New("it is not allowed to use Neo.Native.Call directly to call native contracts. System.Contract.Call should be used")
 	}
 	operation := ic.VM.Estack().Pop().String()
-	m, ok := c.Metadata().Methods[operation]
+	m, ok := c.Metadata().GetMethod(operation, ic.VM.Estack().Len())
 	if !ok {
 		return fmt.Errorf("method %s not found", operation)
 	}

pkg/core/native/management.go

@@ -77,12 +77,26 @@ func newManagement() *Management {
 	md = newMethodAndPrice(m.deploy, 0, callflag.WriteStates|callflag.AllowNotify)
 	m.AddMethod(md, desc)
 
+	desc = newDescriptor("deploy", smartcontract.ArrayType,
+		manifest.NewParameter("script", smartcontract.ByteArrayType),
+		manifest.NewParameter("manifest", smartcontract.ByteArrayType),
+		manifest.NewParameter("data", smartcontract.AnyType))
+	md = newMethodAndPrice(m.deployWithData, 0, callflag.WriteStates|callflag.AllowNotify)
+	m.AddMethod(md, desc)
+
 	desc = newDescriptor("update", smartcontract.VoidType,
 		manifest.NewParameter("script", smartcontract.ByteArrayType),
 		manifest.NewParameter("manifest", smartcontract.ByteArrayType))
 	md = newMethodAndPrice(m.update, 0, callflag.WriteStates|callflag.AllowNotify)
 	m.AddMethod(md, desc)
 
+	desc = newDescriptor("update", smartcontract.VoidType,
+		manifest.NewParameter("script", smartcontract.ByteArrayType),
+		manifest.NewParameter("manifest", smartcontract.ByteArrayType),
+		manifest.NewParameter("data", smartcontract.AnyType))
+	md = newMethodAndPrice(m.updateWithData, 0, callflag.WriteStates|callflag.AllowNotify)
+	m.AddMethod(md, desc)
+
 	desc = newDescriptor("destroy", smartcontract.VoidType)
 	md = newMethodAndPrice(m.destroy, 1000000, callflag.WriteStates|callflag.AllowNotify)
 	m.AddMethod(md, desc)
@@ -204,9 +218,14 @@ func (m *Management) getNefAndManifestFromItems(ic *interop.Context, args []stac
 	return resNef, resManifest, nil
 }
 
-// deploy is an implementation of public deploy method, it's run under
-// VM protections, so it's OK for it to panic instead of returning errors.
+// deploy is an implementation of public 2-argument deploy method.
 func (m *Management) deploy(ic *interop.Context, args []stackitem.Item) stackitem.Item {
+	return m.deployWithData(ic, append(args, stackitem.Null{}))
+}
+
+// deployWithData is an implementation of public 3-argument deploy method.
+// It's run under VM protections, so it's OK for it to panic instead of returning errors.
+func (m *Management) deployWithData(ic *interop.Context, args []stackitem.Item) stackitem.Item {
 	neff, manif, err := m.getNefAndManifestFromItems(ic, args, true)
 	if err != nil {
 		panic(err)
@@ -224,7 +243,7 @@ func (m *Management) deploy(ic *interop.Context, args []stackitem.Item) stackite
 	if err != nil {
 		panic(err)
 	}
-	m.callDeploy(ic, newcontract, false)
+	m.callDeploy(ic, newcontract, args[2], false)
 	m.emitNotification(ic, contractDeployNotificationName, newcontract.Hash)
 	return contractToStack(newcontract)
 }
@@ -266,9 +285,13 @@ func (m *Management) Deploy(d dao.DAO, sender util.Uint160, neff *nef.File, mani
 	return newcontract, nil
 }
 
+func (m *Management) update(ic *interop.Context, args []stackitem.Item) stackitem.Item {
+	return m.updateWithData(ic, append(args, stackitem.Null{}))
+}
+
 // update is an implementation of public update method, it's run under
 // VM protections, so it's OK for it to panic instead of returning errors.
-func (m *Management) update(ic *interop.Context, args []stackitem.Item) stackitem.Item {
+func (m *Management) updateWithData(ic *interop.Context, args []stackitem.Item) stackitem.Item {
 	neff, manif, err := m.getNefAndManifestFromItems(ic, args, false)
 	if err != nil {
 		panic(err)
@@ -280,7 +303,7 @@ func (m *Management) update(ic *interop.Context, args []stackitem.Item) stackite
 	if err != nil {
 		panic(err)
 	}
-	m.callDeploy(ic, contract, true)
+	m.callDeploy(ic, contract, args[2], true)
 	m.emitNotification(ic, contractUpdateNotificationName, contract.Hash)
 	return stackitem.Null{}
 }
@@ -299,6 +322,9 @@ func (m *Management) Update(d dao.DAO, hash util.Uint160, neff *nef.File, manif
 	}
 	// if manifest was provided, update the contract manifest
 	if manif != nil {
+		if manif.Name != contract.Manifest.Name {
+			return nil, errors.New("contract name can't be changed")
+		}
 		if !manif.IsValid(contract.Hash) {
 			return nil, errors.New("invalid manifest for this contract")
 		}
@@ -378,11 +404,11 @@ func (m *Management) setMinimumDeploymentFee(ic *interop.Context, args []stackit
 	return stackitem.Null{}
 }
 
-func (m *Management) callDeploy(ic *interop.Context, cs *state.Contract, isUpdate bool) {
-	md := cs.Manifest.ABI.GetMethod(manifest.MethodDeploy, 1)
+func (m *Management) callDeploy(ic *interop.Context, cs *state.Contract, data stackitem.Item, isUpdate bool) {
+	md := cs.Manifest.ABI.GetMethod(manifest.MethodDeploy, 2)
 	if md != nil {
 		err := contract.CallFromNative(ic, m.Hash, cs, manifest.MethodDeploy,
-			[]stackitem.Item{stackitem.NewBool(isUpdate)}, false)
+			[]stackitem.Item{data, stackitem.NewBool(isUpdate)}, false)
 		if err != nil {
 			panic(err)
 		}