Merge pull request #3012 from nspcc-dev/dynamic-rpc-hash

cli: allow dynamic RPC binding contract hash

cli/smartcontract/generate.go

@@ -30,7 +30,6 @@ var generatorFlags = []cli.Flag{
 	},
 	cli.StringFlag{
 		Name:  "hash",
-		Required: true,
 		Usage: "Smart-contract hash",
 	},
 }
@@ -53,22 +52,30 @@ var generateRPCWrapperCmd = cli.Command{
 }
 
 func contractGenerateWrapper(ctx *cli.Context) error {
-	return contractGenerateSomething(ctx, binding.Generate)
+	return contractGenerateSomething(ctx, binding.Generate, false)
 }
 
 func contractGenerateRPCWrapper(ctx *cli.Context) error {
-	return contractGenerateSomething(ctx, rpcbinding.Generate)
+	return contractGenerateSomething(ctx, rpcbinding.Generate, true)
 }
 
 // contractGenerateSomething reads generator parameters and calls the given callback.
-func contractGenerateSomething(ctx *cli.Context, cb func(binding.Config) error) error {
+func contractGenerateSomething(ctx *cli.Context, cb func(binding.Config) error, allowEmptyHash bool) error {
 	if err := cmdargs.EnsureNone(ctx); err != nil {
 		return err
 	}
-	h, err := util.Uint160DecodeStringLE(strings.TrimPrefix(ctx.String("hash"), "0x"))
+	var (
+		h   util.Uint160
+		err error
+	)
+	if hStr := ctx.String("hash"); len(hStr) != 0 {
+		h, err = util.Uint160DecodeStringLE(strings.TrimPrefix(hStr, "0x"))
 		if err != nil {
 			return cli.NewExitError(fmt.Errorf("invalid contract hash: %w", err), 1)
 		}
+	} else if !allowEmptyHash {
+		return cli.NewExitError("contract hash must be provided via --hash flag", 1)
+	}
 	m, _, err := readManifest(ctx.String("manifest"), h)
 	if err != nil {
 		return cli.NewExitError(fmt.Errorf("can't read contract manifest: %w", err), 1)

cli/smartcontract/generate_test.go

@@ -3,6 +3,7 @@ package smartcontract
 import (
 	"bytes"
 	"encoding/json"
+	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
@@ -309,16 +310,18 @@ type Invoker interface {
 // ContractReader implements safe contract methods.
 type ContractReader struct {
 	invoker Invoker
+	hash util.Uint160
 }
 
 // NewReader creates an instance of ContractReader using Hash and the given Invoker.
 func NewReader(invoker Invoker) *ContractReader {
-	return &ContractReader{invoker}
+	var hash = Hash
+	return &ContractReader{invoker, hash}
 }
 
 // Get invokes `+"`get`"+` method of contract.
 func (c *ContractReader) Get() (*big.Int, error) {
-	return unwrap.BigInt(c.invoker.Call(Hash, "get"))
+	return unwrap.BigInt(c.invoker.Call(c.hash, "get"))
 }
 `, string(data))
 }
@@ -379,17 +382,20 @@ func TestAssistedRPCBindings(t *testing.T) {
 	app := cli.NewApp()
 	app.Commands = NewCommands()
 
-	var checkBinding = func(source string, guessEventTypes bool, suffix ...string) {
+	var checkBinding = func(source string, hasDefinedHash bool, guessEventTypes bool, suffix ...string) {
 		testName := source
 		if len(suffix) != 0 {
 			testName += suffix[0]
 		}
+		testName += fmt.Sprintf(", predefined hash: %t", hasDefinedHash)
 		t.Run(testName, func(t *testing.T) {
 			configFile := filepath.Join(source, "config.yml")
 			expectedFile := filepath.Join(source, "rpcbindings.out")
 			if len(suffix) != 0 {
 				configFile = filepath.Join(source, "config"+suffix[0]+".yml")
 				expectedFile = filepath.Join(source, "rpcbindings"+suffix[0]+".out")
+			} else if !hasDefinedHash {
+				expectedFile = filepath.Join(source, "rpcbindings_dynamic_hash.out")
 			}
 			manifestF := filepath.Join(tmpDir, "manifest.json")
 			bindingF := filepath.Join(tmpDir, "binding.yml")
@@ -405,15 +411,18 @@ func TestAssistedRPCBindings(t *testing.T) {
 				cmd = append(cmd, "--guess-eventtypes")
 			}
 			require.NoError(t, app.Run(cmd))
-			outFile := filepath.Join(tmpDir, "out.go")
+
-			require.NoError(t, app.Run([]string{"", "contract", "generate-rpcwrapper",
+			cmds := []string{"", "contract", "generate-rpcwrapper",
 				"--config", bindingF,
 				"--manifest", manifestF,
-				"--out", outFile,
+				"--out", expectedFile,
-				"--hash", "0x00112233445566778899aabbccddeeff00112233",
+			}
-			}))
+			if hasDefinedHash {
+				cmds = append(cmds, "--hash", "0x00112233445566778899aabbccddeeff00112233")
+			}
+			require.NoError(t, app.Run(cmds))
 
-			data, err := os.ReadFile(outFile)
+			data, err := os.ReadFile(expectedFile)
 			require.NoError(t, err)
 			data = bytes.ReplaceAll(data, []byte("\r"), []byte{}) // Windows.
 			if rewriteExpectedOutputs {
@@ -427,11 +436,13 @@ func TestAssistedRPCBindings(t *testing.T) {
 		})
 	}
 
-	checkBinding(filepath.Join("testdata", "types"), false)
+	for _, hasDefinedHash := range []bool{true, false} {
-	checkBinding(filepath.Join("testdata", "structs"), false)
+		checkBinding(filepath.Join("testdata", "types"), hasDefinedHash, false)
-	checkBinding(filepath.Join("testdata", "notifications"), false)
+		checkBinding(filepath.Join("testdata", "structs"), hasDefinedHash, false)
-	checkBinding(filepath.Join("testdata", "notifications"), false, "_extended")
+	}
-	checkBinding(filepath.Join("testdata", "notifications"), true, "_guessed")
+	checkBinding(filepath.Join("testdata", "notifications"), true, false)
+	checkBinding(filepath.Join("testdata", "notifications"), true, false, "_extended")
+	checkBinding(filepath.Join("testdata", "notifications"), true, true, "_guessed")
 
 	require.False(t, rewriteExpectedOutputs)
 }

cli/smartcontract/testdata/gas/gas.go

@@ -25,6 +25,7 @@ type Actor interface {
 type ContractReader struct {
 	nep17.TokenReader
 	invoker Invoker
+	hash util.Uint160
 }
 
 // Contract implements all contract methods.
@@ -32,15 +33,18 @@ type Contract struct {
 	ContractReader
 	nep17.TokenWriter
 	actor Actor
+	hash util.Uint160
 }
 
 // NewReader creates an instance of ContractReader using Hash and the given Invoker.
 func NewReader(invoker Invoker) *ContractReader {
-	return &ContractReader{*nep17.NewReader(invoker, Hash), invoker}
+	var hash = Hash
+	return &ContractReader{*nep17.NewReader(invoker, hash), invoker, hash}
 }
 
 // New creates an instance of Contract using Hash and the given Actor.
 func New(actor Actor) *Contract {
-	var nep17t = nep17.New(actor, Hash)
+	var hash = Hash
-	return &Contract{ContractReader{nep17t.TokenReader, actor}, nep17t.TokenWriter, actor}
+	var nep17t = nep17.New(actor, hash)
+	return &Contract{ContractReader{nep17t.TokenReader, actor, hash}, nep17t.TokenWriter, actor, hash}
 }

cli/smartcontract/testdata/nameservice/nns.go

@@ -56,6 +56,7 @@ type Actor interface {
 type ContractReader struct {
 	nep11.NonDivisibleReader
 	invoker Invoker
+	hash util.Uint160
 }
 
 // Contract implements all contract methods.
@@ -63,22 +64,25 @@ type Contract struct {
 	ContractReader
 	nep11.BaseWriter
 	actor Actor
+	hash util.Uint160
 }
 
 // NewReader creates an instance of ContractReader using Hash and the given Invoker.
 func NewReader(invoker Invoker) *ContractReader {
-	return &ContractReader{*nep11.NewNonDivisibleReader(invoker, Hash), invoker}
+	var hash = Hash
+	return &ContractReader{*nep11.NewNonDivisibleReader(invoker, hash), invoker, hash}
 }
 
 // New creates an instance of Contract using Hash and the given Actor.
 func New(actor Actor) *Contract {
-	var nep11ndt = nep11.NewNonDivisible(actor, Hash)
+	var hash = Hash
-	return &Contract{ContractReader{nep11ndt.NonDivisibleReader, actor}, nep11ndt.BaseWriter, actor}
+	var nep11ndt = nep11.NewNonDivisible(actor, hash)
+	return &Contract{ContractReader{nep11ndt.NonDivisibleReader, actor, hash}, nep11ndt.BaseWriter, actor, hash}
 }
 
 // Roots invokes `roots` method of contract.
 func (c *ContractReader) Roots() (uuid.UUID, result.Iterator, error) {
-	return unwrap.SessionIterator(c.invoker.Call(Hash, "roots"))
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "roots"))
 }
 
 // RootsExpanded is similar to Roots (uses the same contract
@@ -87,27 +91,27 @@ func (c *ContractReader) Roots() (uuid.UUID, result.Iterator, error) {
 // number of result items from the iterator right in the VM and return them to
 // you. It's only limited by VM stack and GAS available for RPC invocations.
 func (c *ContractReader) RootsExpanded(_numOfIteratorItems int) ([]stackitem.Item, error) {
-	return unwrap.Array(c.invoker.CallAndExpandIterator(Hash, "roots", _numOfIteratorItems))
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "roots", _numOfIteratorItems))
 }
 
 // GetPrice invokes `getPrice` method of contract.
 func (c *ContractReader) GetPrice(length *big.Int) (*big.Int, error) {
-	return unwrap.BigInt(c.invoker.Call(Hash, "getPrice", length))
+	return unwrap.BigInt(c.invoker.Call(c.hash, "getPrice", length))
 }
 
 // IsAvailable invokes `isAvailable` method of contract.
 func (c *ContractReader) IsAvailable(name string) (bool, error) {
-	return unwrap.Bool(c.invoker.Call(Hash, "isAvailable", name))
+	return unwrap.Bool(c.invoker.Call(c.hash, "isAvailable", name))
 }
 
 // GetRecord invokes `getRecord` method of contract.
 func (c *ContractReader) GetRecord(name string, typev *big.Int) (string, error) {
-	return unwrap.UTF8String(c.invoker.Call(Hash, "getRecord", name, typev))
+	return unwrap.UTF8String(c.invoker.Call(c.hash, "getRecord", name, typev))
 }
 
 // GetAllRecords invokes `getAllRecords` method of contract.
 func (c *ContractReader) GetAllRecords(name string) (uuid.UUID, result.Iterator, error) {
-	return unwrap.SessionIterator(c.invoker.Call(Hash, "getAllRecords", name))
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "getAllRecords", name))
 }
 
 // GetAllRecordsExpanded is similar to GetAllRecords (uses the same contract
@@ -116,26 +120,26 @@ func (c *ContractReader) GetAllRecords(name string) (uuid.UUID, result.Iterator,
 // number of result items from the iterator right in the VM and return them to
 // you. It's only limited by VM stack and GAS available for RPC invocations.
 func (c *ContractReader) GetAllRecordsExpanded(name string, _numOfIteratorItems int) ([]stackitem.Item, error) {
-	return unwrap.Array(c.invoker.CallAndExpandIterator(Hash, "getAllRecords", _numOfIteratorItems, name))
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "getAllRecords", _numOfIteratorItems, name))
 }
 
 // Resolve invokes `resolve` method of contract.
 func (c *ContractReader) Resolve(name string, typev *big.Int) (string, error) {
-	return unwrap.UTF8String(c.invoker.Call(Hash, "resolve", name, typev))
+	return unwrap.UTF8String(c.invoker.Call(c.hash, "resolve", name, typev))
 }
 
 // Update creates a transaction invoking `update` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Update(nef []byte, manifest string) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "update", nef, manifest)
+	return c.actor.SendCall(c.hash, "update", nef, manifest)
 }
 
 // UpdateTransaction creates a transaction invoking `update` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) UpdateTransaction(nef []byte, manifest string) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "update", nef, manifest)
+	return c.actor.MakeCall(c.hash, "update", nef, manifest)
 }
 
 // UpdateUnsigned creates a transaction invoking `update` method of the contract.
@@ -143,21 +147,21 @@ func (c *Contract) UpdateTransaction(nef []byte, manifest string) (*transaction.
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) UpdateUnsigned(nef []byte, manifest string) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "update", nil, nef, manifest)
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, nef, manifest)
 }
 
 // AddRoot creates a transaction invoking `addRoot` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) AddRoot(root string) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "addRoot", root)
+	return c.actor.SendCall(c.hash, "addRoot", root)
 }
 
 // AddRootTransaction creates a transaction invoking `addRoot` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) AddRootTransaction(root string) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "addRoot", root)
+	return c.actor.MakeCall(c.hash, "addRoot", root)
 }
 
 // AddRootUnsigned creates a transaction invoking `addRoot` method of the contract.
@@ -165,21 +169,21 @@ func (c *Contract) AddRootTransaction(root string) (*transaction.Transaction, er
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) AddRootUnsigned(root string) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "addRoot", nil, root)
+	return c.actor.MakeUnsignedCall(c.hash, "addRoot", nil, root)
 }
 
 // SetPrice creates a transaction invoking `setPrice` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) SetPrice(priceList []any) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "setPrice", priceList)
+	return c.actor.SendCall(c.hash, "setPrice", priceList)
 }
 
 // SetPriceTransaction creates a transaction invoking `setPrice` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) SetPriceTransaction(priceList []any) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "setPrice", priceList)
+	return c.actor.MakeCall(c.hash, "setPrice", priceList)
 }
 
 // SetPriceUnsigned creates a transaction invoking `setPrice` method of the contract.
@@ -187,11 +191,11 @@ func (c *Contract) SetPriceTransaction(priceList []any) (*transaction.Transactio
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) SetPriceUnsigned(priceList []any) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "setPrice", nil, priceList)
+	return c.actor.MakeUnsignedCall(c.hash, "setPrice", nil, priceList)
 }
 
 func scriptForRegister(name string, owner util.Uint160) ([]byte, error) {
-	return smartcontract.CreateCallWithAssertScript(Hash, "register", name, owner)
+	return smartcontract.CreateCallWithAssertScript(c.hash, "register", name, owner)
 }
 
 // Register creates a transaction invoking `register` method of the contract.
@@ -232,14 +236,14 @@ func (c *Contract) RegisterUnsigned(name string, owner util.Uint160) (*transacti
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Renew(name string) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "renew", name)
+	return c.actor.SendCall(c.hash, "renew", name)
 }
 
 // RenewTransaction creates a transaction invoking `renew` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) RenewTransaction(name string) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "renew", name)
+	return c.actor.MakeCall(c.hash, "renew", name)
 }
 
 // RenewUnsigned creates a transaction invoking `renew` method of the contract.
@@ -247,21 +251,21 @@ func (c *Contract) RenewTransaction(name string) (*transaction.Transaction, erro
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) RenewUnsigned(name string) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "renew", nil, name)
+	return c.actor.MakeUnsignedCall(c.hash, "renew", nil, name)
 }
 
 // Renew_2 creates a transaction invoking `renew` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Renew_2(name string, years *big.Int) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "renew", name, years)
+	return c.actor.SendCall(c.hash, "renew", name, years)
 }
 
 // Renew_2Transaction creates a transaction invoking `renew` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) Renew_2Transaction(name string, years *big.Int) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "renew", name, years)
+	return c.actor.MakeCall(c.hash, "renew", name, years)
 }
 
 // Renew_2Unsigned creates a transaction invoking `renew` method of the contract.
@@ -269,21 +273,21 @@ func (c *Contract) Renew_2Transaction(name string, years *big.Int) (*transaction
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) Renew_2Unsigned(name string, years *big.Int) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "renew", nil, name, years)
+	return c.actor.MakeUnsignedCall(c.hash, "renew", nil, name, years)
 }
 
 // SetAdmin creates a transaction invoking `setAdmin` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) SetAdmin(name string, admin util.Uint160) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "setAdmin", name, admin)
+	return c.actor.SendCall(c.hash, "setAdmin", name, admin)
 }
 
 // SetAdminTransaction creates a transaction invoking `setAdmin` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) SetAdminTransaction(name string, admin util.Uint160) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "setAdmin", name, admin)
+	return c.actor.MakeCall(c.hash, "setAdmin", name, admin)
 }
 
 // SetAdminUnsigned creates a transaction invoking `setAdmin` method of the contract.
@@ -291,21 +295,21 @@ func (c *Contract) SetAdminTransaction(name string, admin util.Uint160) (*transa
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) SetAdminUnsigned(name string, admin util.Uint160) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "setAdmin", nil, name, admin)
+	return c.actor.MakeUnsignedCall(c.hash, "setAdmin", nil, name, admin)
 }
 
 // SetRecord creates a transaction invoking `setRecord` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) SetRecord(name string, typev *big.Int, data string) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "setRecord", name, typev, data)
+	return c.actor.SendCall(c.hash, "setRecord", name, typev, data)
 }
 
 // SetRecordTransaction creates a transaction invoking `setRecord` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) SetRecordTransaction(name string, typev *big.Int, data string) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "setRecord", name, typev, data)
+	return c.actor.MakeCall(c.hash, "setRecord", name, typev, data)
 }
 
 // SetRecordUnsigned creates a transaction invoking `setRecord` method of the contract.
@@ -313,21 +317,21 @@ func (c *Contract) SetRecordTransaction(name string, typev *big.Int, data string
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) SetRecordUnsigned(name string, typev *big.Int, data string) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "setRecord", nil, name, typev, data)
+	return c.actor.MakeUnsignedCall(c.hash, "setRecord", nil, name, typev, data)
 }
 
 // DeleteRecord creates a transaction invoking `deleteRecord` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) DeleteRecord(name string, typev *big.Int) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "deleteRecord", name, typev)
+	return c.actor.SendCall(c.hash, "deleteRecord", name, typev)
 }
 
 // DeleteRecordTransaction creates a transaction invoking `deleteRecord` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) DeleteRecordTransaction(name string, typev *big.Int) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "deleteRecord", name, typev)
+	return c.actor.MakeCall(c.hash, "deleteRecord", name, typev)
 }
 
 // DeleteRecordUnsigned creates a transaction invoking `deleteRecord` method of the contract.
@@ -335,7 +339,7 @@ func (c *Contract) DeleteRecordTransaction(name string, typev *big.Int) (*transa
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) DeleteRecordUnsigned(name string, typev *big.Int) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "deleteRecord", nil, name, typev)
+	return c.actor.MakeUnsignedCall(c.hash, "deleteRecord", nil, name, typev)
 }
 
 // SetAdminEventsFromApplicationLog retrieves a set of all emitted events

cli/smartcontract/testdata/nex/nex.go

@@ -48,6 +48,7 @@ type Actor interface {
 type ContractReader struct {
 	nep17.TokenReader
 	invoker Invoker
+	hash util.Uint160
 }
 
 // Contract implements all contract methods.
@@ -55,51 +56,54 @@ type Contract struct {
 	ContractReader
 	nep17.TokenWriter
 	actor Actor
+	hash util.Uint160
 }
 
 // NewReader creates an instance of ContractReader using Hash and the given Invoker.
 func NewReader(invoker Invoker) *ContractReader {
-	return &ContractReader{*nep17.NewReader(invoker, Hash), invoker}
+	var hash = Hash
+	return &ContractReader{*nep17.NewReader(invoker, hash), invoker, hash}
 }
 
 // New creates an instance of Contract using Hash and the given Actor.
 func New(actor Actor) *Contract {
-	var nep17t = nep17.New(actor, Hash)
+	var hash = Hash
-	return &Contract{ContractReader{nep17t.TokenReader, actor}, nep17t.TokenWriter, actor}
+	var nep17t = nep17.New(actor, hash)
+	return &Contract{ContractReader{nep17t.TokenReader, actor, hash}, nep17t.TokenWriter, actor, hash}
 }
 
 // Cap invokes `cap` method of contract.
 func (c *ContractReader) Cap() (*big.Int, error) {
-	return unwrap.BigInt(c.invoker.Call(Hash, "cap"))
+	return unwrap.BigInt(c.invoker.Call(c.hash, "cap"))
 }
 
 // GetMinter invokes `getMinter` method of contract.
 func (c *ContractReader) GetMinter() (*keys.PublicKey, error) {
-	return unwrap.PublicKey(c.invoker.Call(Hash, "getMinter"))
+	return unwrap.PublicKey(c.invoker.Call(c.hash, "getMinter"))
 }
 
 // GetOwner invokes `getOwner` method of contract.
 func (c *ContractReader) GetOwner() (util.Uint160, error) {
-	return unwrap.Uint160(c.invoker.Call(Hash, "getOwner"))
+	return unwrap.Uint160(c.invoker.Call(c.hash, "getOwner"))
 }
 
 // TotalMinted invokes `totalMinted` method of contract.
 func (c *ContractReader) TotalMinted() (*big.Int, error) {
-	return unwrap.BigInt(c.invoker.Call(Hash, "totalMinted"))
+	return unwrap.BigInt(c.invoker.Call(c.hash, "totalMinted"))
 }
 
 // ChangeMinter creates a transaction invoking `changeMinter` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) ChangeMinter(newMinter *keys.PublicKey) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "changeMinter", newMinter)
+	return c.actor.SendCall(c.hash, "changeMinter", newMinter)
 }
 
 // ChangeMinterTransaction creates a transaction invoking `changeMinter` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) ChangeMinterTransaction(newMinter *keys.PublicKey) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "changeMinter", newMinter)
+	return c.actor.MakeCall(c.hash, "changeMinter", newMinter)
 }
 
 // ChangeMinterUnsigned creates a transaction invoking `changeMinter` method of the contract.
@@ -107,21 +111,21 @@ func (c *Contract) ChangeMinterTransaction(newMinter *keys.PublicKey) (*transact
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) ChangeMinterUnsigned(newMinter *keys.PublicKey) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "changeMinter", nil, newMinter)
+	return c.actor.MakeUnsignedCall(c.hash, "changeMinter", nil, newMinter)
 }
 
 // ChangeOwner creates a transaction invoking `changeOwner` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) ChangeOwner(newOwner util.Uint160) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "changeOwner", newOwner)
+	return c.actor.SendCall(c.hash, "changeOwner", newOwner)
 }
 
 // ChangeOwnerTransaction creates a transaction invoking `changeOwner` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) ChangeOwnerTransaction(newOwner util.Uint160) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "changeOwner", newOwner)
+	return c.actor.MakeCall(c.hash, "changeOwner", newOwner)
 }
 
 // ChangeOwnerUnsigned creates a transaction invoking `changeOwner` method of the contract.
@@ -129,21 +133,21 @@ func (c *Contract) ChangeOwnerTransaction(newOwner util.Uint160) (*transaction.T
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) ChangeOwnerUnsigned(newOwner util.Uint160) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "changeOwner", nil, newOwner)
+	return c.actor.MakeUnsignedCall(c.hash, "changeOwner", nil, newOwner)
 }
 
 // Destroy creates a transaction invoking `destroy` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Destroy() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "destroy")
+	return c.actor.SendCall(c.hash, "destroy")
 }
 
 // DestroyTransaction creates a transaction invoking `destroy` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) DestroyTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "destroy")
+	return c.actor.MakeCall(c.hash, "destroy")
 }
 
 // DestroyUnsigned creates a transaction invoking `destroy` method of the contract.
@@ -151,21 +155,21 @@ func (c *Contract) DestroyTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) DestroyUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "destroy", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "destroy", nil)
 }
 
 // MaxSupply creates a transaction invoking `maxSupply` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) MaxSupply() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "maxSupply")
+	return c.actor.SendCall(c.hash, "maxSupply")
 }
 
 // MaxSupplyTransaction creates a transaction invoking `maxSupply` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) MaxSupplyTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "maxSupply")
+	return c.actor.MakeCall(c.hash, "maxSupply")
 }
 
 // MaxSupplyUnsigned creates a transaction invoking `maxSupply` method of the contract.
@@ -173,21 +177,21 @@ func (c *Contract) MaxSupplyTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) MaxSupplyUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "maxSupply", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "maxSupply", nil)
 }
 
 // Mint creates a transaction invoking `mint` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Mint(from util.Uint160, to util.Uint160, amount *big.Int, swapId *big.Int, signature []byte, data any) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "mint", from, to, amount, swapId, signature, data)
+	return c.actor.SendCall(c.hash, "mint", from, to, amount, swapId, signature, data)
 }
 
 // MintTransaction creates a transaction invoking `mint` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) MintTransaction(from util.Uint160, to util.Uint160, amount *big.Int, swapId *big.Int, signature []byte, data any) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "mint", from, to, amount, swapId, signature, data)
+	return c.actor.MakeCall(c.hash, "mint", from, to, amount, swapId, signature, data)
 }
 
 // MintUnsigned creates a transaction invoking `mint` method of the contract.
@@ -195,21 +199,21 @@ func (c *Contract) MintTransaction(from util.Uint160, to util.Uint160, amount *b
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) MintUnsigned(from util.Uint160, to util.Uint160, amount *big.Int, swapId *big.Int, signature []byte, data any) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "mint", nil, from, to, amount, swapId, signature, data)
+	return c.actor.MakeUnsignedCall(c.hash, "mint", nil, from, to, amount, swapId, signature, data)
 }
 
 // Update creates a transaction invoking `update` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Update(nef []byte, manifest []byte) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "update", nef, manifest)
+	return c.actor.SendCall(c.hash, "update", nef, manifest)
 }
 
 // UpdateTransaction creates a transaction invoking `update` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) UpdateTransaction(nef []byte, manifest []byte) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "update", nef, manifest)
+	return c.actor.MakeCall(c.hash, "update", nef, manifest)
 }
 
 // UpdateUnsigned creates a transaction invoking `update` method of the contract.
@@ -217,21 +221,21 @@ func (c *Contract) UpdateTransaction(nef []byte, manifest []byte) (*transaction.
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) UpdateUnsigned(nef []byte, manifest []byte) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "update", nil, nef, manifest)
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, nef, manifest)
 }
 
 // UpdateCap creates a transaction invoking `updateCap` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) UpdateCap(newCap *big.Int) (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "updateCap", newCap)
+	return c.actor.SendCall(c.hash, "updateCap", newCap)
 }
 
 // UpdateCapTransaction creates a transaction invoking `updateCap` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) UpdateCapTransaction(newCap *big.Int) (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "updateCap", newCap)
+	return c.actor.MakeCall(c.hash, "updateCap", newCap)
 }
 
 // UpdateCapUnsigned creates a transaction invoking `updateCap` method of the contract.
@@ -239,7 +243,7 @@ func (c *Contract) UpdateCapTransaction(newCap *big.Int) (*transaction.Transacti
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) UpdateCapUnsigned(newCap *big.Int) (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "updateCap", nil, newCap)
+	return c.actor.MakeUnsignedCall(c.hash, "updateCap", nil, newCap)
 }
 
 // OnMintEventsFromApplicationLog retrieves a set of all emitted events

cli/smartcontract/testdata/nonepiter/iter.go

@@ -23,16 +23,18 @@ type Invoker interface {
 // ContractReader implements safe contract methods.
 type ContractReader struct {
 	invoker Invoker
+	hash util.Uint160
 }
 
 // NewReader creates an instance of ContractReader using Hash and the given Invoker.
 func NewReader(invoker Invoker) *ContractReader {
-	return &ContractReader{invoker}
+	var hash = Hash
+	return &ContractReader{invoker, hash}
 }
 
 // Tokens invokes `tokens` method of contract.
 func (c *ContractReader) Tokens() (uuid.UUID, result.Iterator, error) {
-	return unwrap.SessionIterator(c.invoker.Call(Hash, "tokens"))
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "tokens"))
 }
 
 // TokensExpanded is similar to Tokens (uses the same contract
@@ -41,12 +43,12 @@ func (c *ContractReader) Tokens() (uuid.UUID, result.Iterator, error) {
 // number of result items from the iterator right in the VM and return them to
 // you. It's only limited by VM stack and GAS available for RPC invocations.
 func (c *ContractReader) TokensExpanded(_numOfIteratorItems int) ([]stackitem.Item, error) {
-	return unwrap.Array(c.invoker.CallAndExpandIterator(Hash, "tokens", _numOfIteratorItems))
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "tokens", _numOfIteratorItems))
 }
 
 // GetAllRecords invokes `getAllRecords` method of contract.
 func (c *ContractReader) GetAllRecords(name string) (uuid.UUID, result.Iterator, error) {
-	return unwrap.SessionIterator(c.invoker.Call(Hash, "getAllRecords", name))
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "getAllRecords", name))
 }
 
 // GetAllRecordsExpanded is similar to GetAllRecords (uses the same contract
@@ -55,5 +57,5 @@ func (c *ContractReader) GetAllRecords(name string) (uuid.UUID, result.Iterator,
 // number of result items from the iterator right in the VM and return them to
 // you. It's only limited by VM stack and GAS available for RPC invocations.
 func (c *ContractReader) GetAllRecordsExpanded(name string, _numOfIteratorItems int) ([]stackitem.Item, error) {
-	return unwrap.Array(c.invoker.CallAndExpandIterator(Hash, "getAllRecords", _numOfIteratorItems, name))
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "getAllRecords", _numOfIteratorItems, name))
 }

cli/smartcontract/testdata/notifications/rpcbindings.out

@@ -110,25 +110,27 @@ type Actor interface {
 // Contract implements all contract methods.
 type Contract struct {
 	actor Actor
+	hash util.Uint160
 }
 
 // New creates an instance of Contract using Hash and the given Actor.
 func New(actor Actor) *Contract {
-	return &Contract{actor}
+	var hash = Hash
+	return &Contract{actor, hash}
 }
 
 // Array creates a transaction invoking `array` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Array() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "array")
+	return c.actor.SendCall(c.hash, "array")
 }
 
 // ArrayTransaction creates a transaction invoking `array` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) ArrayTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "array")
+	return c.actor.MakeCall(c.hash, "array")
 }
 
 // ArrayUnsigned creates a transaction invoking `array` method of the contract.
@@ -136,21 +138,21 @@ func (c *Contract) ArrayTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) ArrayUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "array", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "array", nil)
 }
 
 // CrazyMap creates a transaction invoking `crazyMap` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) CrazyMap() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "crazyMap")
+	return c.actor.SendCall(c.hash, "crazyMap")
 }
 
 // CrazyMapTransaction creates a transaction invoking `crazyMap` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) CrazyMapTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "crazyMap")
+	return c.actor.MakeCall(c.hash, "crazyMap")
 }
 
 // CrazyMapUnsigned creates a transaction invoking `crazyMap` method of the contract.
@@ -158,21 +160,21 @@ func (c *Contract) CrazyMapTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) CrazyMapUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "crazyMap", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "crazyMap", nil)
 }
 
 // Main creates a transaction invoking `main` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Main() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "main")
+	return c.actor.SendCall(c.hash, "main")
 }
 
 // MainTransaction creates a transaction invoking `main` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) MainTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "main")
+	return c.actor.MakeCall(c.hash, "main")
 }
 
 // MainUnsigned creates a transaction invoking `main` method of the contract.
@@ -180,21 +182,21 @@ func (c *Contract) MainTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) MainUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "main", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "main", nil)
 }
 
 // Struct creates a transaction invoking `struct` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Struct() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "struct")
+	return c.actor.SendCall(c.hash, "struct")
 }
 
 // StructTransaction creates a transaction invoking `struct` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) StructTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "struct")
+	return c.actor.MakeCall(c.hash, "struct")
 }
 
 // StructUnsigned creates a transaction invoking `struct` method of the contract.
@@ -202,7 +204,7 @@ func (c *Contract) StructTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) StructUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "struct", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "struct", nil)
 }
 
 // itemToLedgerBlock converts stack item into *LedgerBlock.

cli/smartcontract/testdata/notifications/rpcbindings_extended.out

@@ -116,25 +116,27 @@ type Actor interface {
 // Contract implements all contract methods.
 type Contract struct {
 	actor Actor
+	hash util.Uint160
 }
 
 // New creates an instance of Contract using Hash and the given Actor.
 func New(actor Actor) *Contract {
-	return &Contract{actor}
+	var hash = Hash
+	return &Contract{actor, hash}
 }
 
 // Array creates a transaction invoking `array` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Array() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "array")
+	return c.actor.SendCall(c.hash, "array")
 }
 
 // ArrayTransaction creates a transaction invoking `array` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) ArrayTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "array")
+	return c.actor.MakeCall(c.hash, "array")
 }
 
 // ArrayUnsigned creates a transaction invoking `array` method of the contract.
@@ -142,21 +144,21 @@ func (c *Contract) ArrayTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) ArrayUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "array", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "array", nil)
 }
 
 // CrazyMap creates a transaction invoking `crazyMap` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) CrazyMap() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "crazyMap")
+	return c.actor.SendCall(c.hash, "crazyMap")
 }
 
 // CrazyMapTransaction creates a transaction invoking `crazyMap` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) CrazyMapTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "crazyMap")
+	return c.actor.MakeCall(c.hash, "crazyMap")
 }
 
 // CrazyMapUnsigned creates a transaction invoking `crazyMap` method of the contract.
@@ -164,21 +166,21 @@ func (c *Contract) CrazyMapTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) CrazyMapUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "crazyMap", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "crazyMap", nil)
 }
 
 // Main creates a transaction invoking `main` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Main() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "main")
+	return c.actor.SendCall(c.hash, "main")
 }
 
 // MainTransaction creates a transaction invoking `main` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) MainTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "main")
+	return c.actor.MakeCall(c.hash, "main")
 }
 
 // MainUnsigned creates a transaction invoking `main` method of the contract.
@@ -186,21 +188,21 @@ func (c *Contract) MainTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) MainUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "main", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "main", nil)
 }
 
 // Struct creates a transaction invoking `struct` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Struct() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "struct")
+	return c.actor.SendCall(c.hash, "struct")
 }
 
 // StructTransaction creates a transaction invoking `struct` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) StructTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "struct")
+	return c.actor.MakeCall(c.hash, "struct")
 }
 
 // StructUnsigned creates a transaction invoking `struct` method of the contract.
@@ -208,7 +210,7 @@ func (c *Contract) StructTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) StructUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "struct", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "struct", nil)
 }
 
 // itemToCrazyStruct converts stack item into *CrazyStruct.

cli/smartcontract/testdata/notifications/rpcbindings_guessed.out

@@ -116,25 +116,27 @@ type Actor interface {
 // Contract implements all contract methods.
 type Contract struct {
 	actor Actor
+	hash util.Uint160
 }
 
 // New creates an instance of Contract using Hash and the given Actor.
 func New(actor Actor) *Contract {
-	return &Contract{actor}
+	var hash = Hash
+	return &Contract{actor, hash}
 }
 
 // Array creates a transaction invoking `array` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Array() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "array")
+	return c.actor.SendCall(c.hash, "array")
 }
 
 // ArrayTransaction creates a transaction invoking `array` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) ArrayTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "array")
+	return c.actor.MakeCall(c.hash, "array")
 }
 
 // ArrayUnsigned creates a transaction invoking `array` method of the contract.
@@ -142,21 +144,21 @@ func (c *Contract) ArrayTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) ArrayUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "array", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "array", nil)
 }
 
 // CrazyMap creates a transaction invoking `crazyMap` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) CrazyMap() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "crazyMap")
+	return c.actor.SendCall(c.hash, "crazyMap")
 }
 
 // CrazyMapTransaction creates a transaction invoking `crazyMap` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) CrazyMapTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "crazyMap")
+	return c.actor.MakeCall(c.hash, "crazyMap")
 }
 
 // CrazyMapUnsigned creates a transaction invoking `crazyMap` method of the contract.
@@ -164,21 +166,21 @@ func (c *Contract) CrazyMapTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) CrazyMapUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "crazyMap", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "crazyMap", nil)
 }
 
 // Main creates a transaction invoking `main` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Main() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "main")
+	return c.actor.SendCall(c.hash, "main")
 }
 
 // MainTransaction creates a transaction invoking `main` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) MainTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "main")
+	return c.actor.MakeCall(c.hash, "main")
 }
 
 // MainUnsigned creates a transaction invoking `main` method of the contract.
@@ -186,21 +188,21 @@ func (c *Contract) MainTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) MainUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "main", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "main", nil)
 }
 
 // Struct creates a transaction invoking `struct` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
 func (c *Contract) Struct() (util.Uint256, uint32, error) {
-	return c.actor.SendCall(Hash, "struct")
+	return c.actor.SendCall(c.hash, "struct")
 }
 
 // StructTransaction creates a transaction invoking `struct` method of the contract.
 // This transaction is signed, but not sent to the network, instead it's
 // returned to the caller.
 func (c *Contract) StructTransaction() (*transaction.Transaction, error) {
-	return c.actor.MakeCall(Hash, "struct")
+	return c.actor.MakeCall(c.hash, "struct")
 }
 
 // StructUnsigned creates a transaction invoking `struct` method of the contract.
@@ -208,7 +210,7 @@ func (c *Contract) StructTransaction() (*transaction.Transaction, error) {
 // Any fields of it that do not affect fees can be changed (ValidUntilBlock,
 // Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
 func (c *Contract) StructUnsigned() (*transaction.Transaction, error) {
-	return c.actor.MakeUnsignedCall(Hash, "struct", nil)
+	return c.actor.MakeUnsignedCall(c.hash, "struct", nil)
 }
 
 // itemToLedgerBlock converts stack item into *LedgerBlock.

cli/smartcontract/testdata/structs/rpcbindings.out

@@ -162,31 +162,33 @@ type Invoker interface {
 // ContractReader implements safe contract methods.
 type ContractReader struct {
 	invoker Invoker
+	hash util.Uint160
 }
 
 // NewReader creates an instance of ContractReader using Hash and the given Invoker.
 func NewReader(invoker Invoker) *ContractReader {
-	return &ContractReader{invoker}
+	var hash = Hash
+	return &ContractReader{invoker, hash}
 }
 
 // Block invokes `block` method of contract.
 func (c *ContractReader) Block(b *LedgerBlock) (*LedgerBlock, error) {
-	return itemToLedgerBlock(unwrap.Item(c.invoker.Call(Hash, "block", b)))
+	return itemToLedgerBlock(unwrap.Item(c.invoker.Call(c.hash, "block", b)))
 }
 
 // Contract invokes `contract` method of contract.
 func (c *ContractReader) Contract(mc *ManagementContract) (*ManagementContract, error) {
-	return itemToManagementContract(unwrap.Item(c.invoker.Call(Hash, "contract", mc)))
+	return itemToManagementContract(unwrap.Item(c.invoker.Call(c.hash, "contract", mc)))
 }
 
 // Struct invokes `struct` method of contract.
 func (c *ContractReader) Struct(s *StructsInternal) (*StructsInternal, error) {
-	return itemToStructsInternal(unwrap.Item(c.invoker.Call(Hash, "struct", s)))
+	return itemToStructsInternal(unwrap.Item(c.invoker.Call(c.hash, "struct", s)))
 }
 
 // Transaction invokes `transaction` method of contract.
 func (c *ContractReader) Transaction(t *LedgerTransaction) (*LedgerTransaction, error) {
-	return itemToLedgerTransaction(unwrap.Item(c.invoker.Call(Hash, "transaction", t)))
+	return itemToLedgerTransaction(unwrap.Item(c.invoker.Call(c.hash, "transaction", t)))
 }
 
 // itemToLedgerBlock converts stack item into *LedgerBlock.

cli/smartcontract/testdata/types/rpcbindings.out

@@ -24,11 +24,13 @@ type Invoker interface {
 // ContractReader implements safe contract methods.
 type ContractReader struct {
 	invoker Invoker
+	hash util.Uint160
 }
 
 // NewReader creates an instance of ContractReader using Hash and the given Invoker.
 func NewReader(invoker Invoker) *ContractReader {
-	return &ContractReader{invoker}
+	var hash = Hash
+	return &ContractReader{invoker, hash}
 }
 
 // AAAStrings invokes `aAAStrings` method of contract.
@@ -86,7 +88,7 @@ func (c *ContractReader) AAAStrings(s [][][]string) ([][][]string, error) {
 			}
 			return res, nil
 		} (item)
-	} (unwrap.Item(c.invoker.Call(Hash, "aAAStrings", s)))
+	} (unwrap.Item(c.invoker.Call(c.hash, "aAAStrings", s)))
 }
 
 // Any invokes `any` method of contract.
@@ -96,7 +98,7 @@ func (c *ContractReader) Any(a any) (any, error) {
 			return nil, err
 		}
 		return item.Value(), error(nil)
-	} (unwrap.Item(c.invoker.Call(Hash, "any", a)))
+	} (unwrap.Item(c.invoker.Call(c.hash, "any", a)))
 }
 
 // AnyMaps invokes `anyMaps` method of contract.
@@ -124,27 +126,27 @@ func (c *ContractReader) AnyMaps(m map[*big.Int]any) (map[*big.Int]any, error) {
 			}
 			return res, nil
 		} (item)
-	} (unwrap.Item(c.invoker.Call(Hash, "anyMaps", m)))
+	} (unwrap.Item(c.invoker.Call(c.hash, "anyMaps", m)))
 }
 
 // Bool invokes `bool` method of contract.
 func (c *ContractReader) Bool(b bool) (bool, error) {
-	return unwrap.Bool(c.invoker.Call(Hash, "bool", b))
+	return unwrap.Bool(c.invoker.Call(c.hash, "bool", b))
 }
 
 // Bools invokes `bools` method of contract.
 func (c *ContractReader) Bools(b []bool) ([]bool, error) {
-	return unwrap.ArrayOfBools(c.invoker.Call(Hash, "bools", b))
+	return unwrap.ArrayOfBools(c.invoker.Call(c.hash, "bools", b))
 }
 
 // Bytes invokes `bytes` method of contract.
 func (c *ContractReader) Bytes(b []byte) ([]byte, error) {
-	return unwrap.Bytes(c.invoker.Call(Hash, "bytes", b))
+	return unwrap.Bytes(c.invoker.Call(c.hash, "bytes", b))
 }
 
 // Bytess invokes `bytess` method of contract.
 func (c *ContractReader) Bytess(b [][]byte) ([][]byte, error) {
-	return unwrap.ArrayOfBytes(c.invoker.Call(Hash, "bytess", b))
+	return unwrap.ArrayOfBytes(c.invoker.Call(c.hash, "bytess", b))
 }
 
 // CrazyMaps invokes `crazyMaps` method of contract.
@@ -235,37 +237,37 @@ func (c *ContractReader) CrazyMaps(m map[*big.Int][]map[string][]util.Uint160) (
 			}
 			return res, nil
 		} (item)
-	} (unwrap.Item(c.invoker.Call(Hash, "crazyMaps", m)))
+	} (unwrap.Item(c.invoker.Call(c.hash, "crazyMaps", m)))
 }
 
 // Hash160 invokes `hash160` method of contract.
 func (c *ContractReader) Hash160(h util.Uint160) (util.Uint160, error) {
-	return unwrap.Uint160(c.invoker.Call(Hash, "hash160", h))
+	return unwrap.Uint160(c.invoker.Call(c.hash, "hash160", h))
 }
 
 // Hash160s invokes `hash160s` method of contract.
 func (c *ContractReader) Hash160s(h []util.Uint160) ([]util.Uint160, error) {
-	return unwrap.ArrayOfUint160(c.invoker.Call(Hash, "hash160s", h))
+	return unwrap.ArrayOfUint160(c.invoker.Call(c.hash, "hash160s", h))
 }
 
 // Hash256 invokes `hash256` method of contract.
 func (c *ContractReader) Hash256(h util.Uint256) (util.Uint256, error) {
-	return unwrap.Uint256(c.invoker.Call(Hash, "hash256", h))
+	return unwrap.Uint256(c.invoker.Call(c.hash, "hash256", h))
 }
 
 // Hash256s invokes `hash256s` method of contract.
 func (c *ContractReader) Hash256s(h []util.Uint256) ([]util.Uint256, error) {
-	return unwrap.ArrayOfUint256(c.invoker.Call(Hash, "hash256s", h))
+	return unwrap.ArrayOfUint256(c.invoker.Call(c.hash, "hash256s", h))
 }
 
 // Int invokes `int` method of contract.
 func (c *ContractReader) Int(i *big.Int) (*big.Int, error) {
-	return unwrap.BigInt(c.invoker.Call(Hash, "int", i))
+	return unwrap.BigInt(c.invoker.Call(c.hash, "int", i))
 }
 
 // Ints invokes `ints` method of contract.
 func (c *ContractReader) Ints(i []*big.Int) ([]*big.Int, error) {
-	return unwrap.ArrayOfBigInts(c.invoker.Call(Hash, "ints", i))
+	return unwrap.ArrayOfBigInts(c.invoker.Call(c.hash, "ints", i))
 }
 
 // Maps invokes `maps` method of contract.
@@ -311,35 +313,35 @@ func (c *ContractReader) Maps(m map[string]string) (map[string]string, error) {
 			}
 			return res, nil
 		} (item)
-	} (unwrap.Item(c.invoker.Call(Hash, "maps", m)))
+	} (unwrap.Item(c.invoker.Call(c.hash, "maps", m)))
 }
 
 // PublicKey invokes `publicKey` method of contract.
 func (c *ContractReader) PublicKey(k *keys.PublicKey) (*keys.PublicKey, error) {
-	return unwrap.PublicKey(c.invoker.Call(Hash, "publicKey", k))
+	return unwrap.PublicKey(c.invoker.Call(c.hash, "publicKey", k))
 }
 
 // PublicKeys invokes `publicKeys` method of contract.
 func (c *ContractReader) PublicKeys(k keys.PublicKeys) (keys.PublicKeys, error) {
-	return unwrap.ArrayOfPublicKeys(c.invoker.Call(Hash, "publicKeys", k))
+	return unwrap.ArrayOfPublicKeys(c.invoker.Call(c.hash, "publicKeys", k))
 }
 
 // Signature invokes `signature` method of contract.
 func (c *ContractReader) Signature(s []byte) ([]byte, error) {
-	return unwrap.Bytes(c.invoker.Call(Hash, "signature", s))
+	return unwrap.Bytes(c.invoker.Call(c.hash, "signature", s))
 }
 
 // Signatures invokes `signatures` method of contract.
 func (c *ContractReader) Signatures(s [][]byte) ([][]byte, error) {
-	return unwrap.ArrayOfBytes(c.invoker.Call(Hash, "signatures", s))
+	return unwrap.ArrayOfBytes(c.invoker.Call(c.hash, "signatures", s))
 }
 
 // String invokes `string` method of contract.
 func (c *ContractReader) String(s string) (string, error) {
-	return unwrap.UTF8String(c.invoker.Call(Hash, "string", s))
+	return unwrap.UTF8String(c.invoker.Call(c.hash, "string", s))
 }
 
 // Strings invokes `strings` method of contract.
 func (c *ContractReader) Strings(s []string) ([]string, error) {
-	return unwrap.ArrayOfUTF8Strings(c.invoker.Call(Hash, "strings", s))
+	return unwrap.ArrayOfUTF8Strings(c.invoker.Call(c.hash, "strings", s))
 }

cli/smartcontract/testdata/types/rpcbindings_dynamic_hash.out

@@ -0,0 +1,343 @@
+// Package types contains RPC wrappers for Types contract.
+package types
+
+import (
+	"errors"
+	"fmt"
+	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
+	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"math/big"
+	"unicode/utf8"
+)
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	Call(contract util.Uint160, operation string, params ...any) (*result.Invoke, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	invoker Invoker
+	hash util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{invoker, hash}
+}
+
+// AAAStrings invokes `aAAStrings` method of contract.
+func (c *ContractReader) AAAStrings(s [][][]string) ([][][]string, error) {
+	return func (item stackitem.Item, err error) ([][][]string, error) {
+		if err != nil {
+			return nil, err
+		}
+		return func (item stackitem.Item) ([][][]string, error) {
+			arr, ok := item.Value().([]stackitem.Item)
+			if !ok {
+				return nil, errors.New("not an array")
+			}
+			res := make([][][]string, len(arr))
+			for i := range res {
+				res[i], err = func (item stackitem.Item) ([][]string, error) {
+					arr, ok := item.Value().([]stackitem.Item)
+					if !ok {
+						return nil, errors.New("not an array")
+					}
+					res := make([][]string, len(arr))
+					for i := range res {
+						res[i], err = func (item stackitem.Item) ([]string, error) {
+							arr, ok := item.Value().([]stackitem.Item)
+							if !ok {
+								return nil, errors.New("not an array")
+							}
+							res := make([]string, len(arr))
+							for i := range res {
+								res[i], err = func (item stackitem.Item) (string, error) {
+									b, err := item.TryBytes()
+									if err != nil {
+										return "", err
+									}
+									if !utf8.Valid(b) {
+										return "", errors.New("not a UTF-8 string")
+									}
+									return string(b), nil
+								} (arr[i])
+								if err != nil {
+									return nil, fmt.Errorf("item %d: %w", i, err)
+								}
+							}
+							return res, nil
+						} (arr[i])
+						if err != nil {
+							return nil, fmt.Errorf("item %d: %w", i, err)
+						}
+					}
+					return res, nil
+				} (arr[i])
+				if err != nil {
+					return nil, fmt.Errorf("item %d: %w", i, err)
+				}
+			}
+			return res, nil
+		} (item)
+	} (unwrap.Item(c.invoker.Call(c.hash, "aAAStrings", s)))
+}
+
+// Any invokes `any` method of contract.
+func (c *ContractReader) Any(a any) (any, error) {
+	return func (item stackitem.Item, err error) (any, error) {
+		if err != nil {
+			return nil, err
+		}
+		return item.Value(), error(nil)
+	} (unwrap.Item(c.invoker.Call(c.hash, "any", a)))
+}
+
+// AnyMaps invokes `anyMaps` method of contract.
+func (c *ContractReader) AnyMaps(m map[*big.Int]any) (map[*big.Int]any, error) {
+	return func (item stackitem.Item, err error) (map[*big.Int]any, error) {
+		if err != nil {
+			return nil, err
+		}
+		return func (item stackitem.Item) (map[*big.Int]any, error) {
+			m, ok := item.Value().([]stackitem.MapElement)
+			if !ok {
+				return nil, fmt.Errorf("%s is not a map", item.Type().String())
+			}
+			res := make(map[*big.Int]any)
+			for i := range m {
+				k, err := m[i].Key.TryInteger()
+				if err != nil {
+					return nil, fmt.Errorf("key %d: %w", i, err)
+				}
+				v, err := m[i].Value.Value(), error(nil)
+				if err != nil {
+					return nil, fmt.Errorf("value %d: %w", i, err)
+				}
+				res[k] = v
+			}
+			return res, nil
+		} (item)
+	} (unwrap.Item(c.invoker.Call(c.hash, "anyMaps", m)))
+}
+
+// Bool invokes `bool` method of contract.
+func (c *ContractReader) Bool(b bool) (bool, error) {
+	return unwrap.Bool(c.invoker.Call(c.hash, "bool", b))
+}
+
+// Bools invokes `bools` method of contract.
+func (c *ContractReader) Bools(b []bool) ([]bool, error) {
+	return unwrap.ArrayOfBools(c.invoker.Call(c.hash, "bools", b))
+}
+
+// Bytes invokes `bytes` method of contract.
+func (c *ContractReader) Bytes(b []byte) ([]byte, error) {
+	return unwrap.Bytes(c.invoker.Call(c.hash, "bytes", b))
+}
+
+// Bytess invokes `bytess` method of contract.
+func (c *ContractReader) Bytess(b [][]byte) ([][]byte, error) {
+	return unwrap.ArrayOfBytes(c.invoker.Call(c.hash, "bytess", b))
+}
+
+// CrazyMaps invokes `crazyMaps` method of contract.
+func (c *ContractReader) CrazyMaps(m map[*big.Int][]map[string][]util.Uint160) (map[*big.Int][]map[string][]util.Uint160, error) {
+	return func (item stackitem.Item, err error) (map[*big.Int][]map[string][]util.Uint160, error) {
+		if err != nil {
+			return nil, err
+		}
+		return func (item stackitem.Item) (map[*big.Int][]map[string][]util.Uint160, error) {
+			m, ok := item.Value().([]stackitem.MapElement)
+			if !ok {
+				return nil, fmt.Errorf("%s is not a map", item.Type().String())
+			}
+			res := make(map[*big.Int][]map[string][]util.Uint160)
+			for i := range m {
+				k, err := m[i].Key.TryInteger()
+				if err != nil {
+					return nil, fmt.Errorf("key %d: %w", i, err)
+				}
+				v, err := func (item stackitem.Item) ([]map[string][]util.Uint160, error) {
+					arr, ok := item.Value().([]stackitem.Item)
+					if !ok {
+						return nil, errors.New("not an array")
+					}
+					res := make([]map[string][]util.Uint160, len(arr))
+					for i := range res {
+						res[i], err = func (item stackitem.Item) (map[string][]util.Uint160, error) {
+							m, ok := item.Value().([]stackitem.MapElement)
+							if !ok {
+								return nil, fmt.Errorf("%s is not a map", item.Type().String())
+							}
+							res := make(map[string][]util.Uint160)
+							for i := range m {
+								k, err := func (item stackitem.Item) (string, error) {
+									b, err := item.TryBytes()
+									if err != nil {
+										return "", err
+									}
+									if !utf8.Valid(b) {
+										return "", errors.New("not a UTF-8 string")
+									}
+									return string(b), nil
+								} (m[i].Key)
+								if err != nil {
+									return nil, fmt.Errorf("key %d: %w", i, err)
+								}
+								v, err := func (item stackitem.Item) ([]util.Uint160, error) {
+									arr, ok := item.Value().([]stackitem.Item)
+									if !ok {
+										return nil, errors.New("not an array")
+									}
+									res := make([]util.Uint160, len(arr))
+									for i := range res {
+										res[i], err = func (item stackitem.Item) (util.Uint160, error) {
+											b, err := item.TryBytes()
+											if err != nil {
+												return util.Uint160{}, err
+											}
+											u, err := util.Uint160DecodeBytesBE(b)
+											if err != nil {
+												return util.Uint160{}, err
+											}
+											return u, nil
+										} (arr[i])
+										if err != nil {
+											return nil, fmt.Errorf("item %d: %w", i, err)
+										}
+									}
+									return res, nil
+								} (m[i].Value)
+								if err != nil {
+									return nil, fmt.Errorf("value %d: %w", i, err)
+								}
+								res[k] = v
+							}
+							return res, nil
+						} (arr[i])
+						if err != nil {
+							return nil, fmt.Errorf("item %d: %w", i, err)
+						}
+					}
+					return res, nil
+				} (m[i].Value)
+				if err != nil {
+					return nil, fmt.Errorf("value %d: %w", i, err)
+				}
+				res[k] = v
+			}
+			return res, nil
+		} (item)
+	} (unwrap.Item(c.invoker.Call(c.hash, "crazyMaps", m)))
+}
+
+// Hash160 invokes `hash160` method of contract.
+func (c *ContractReader) Hash160(h util.Uint160) (util.Uint160, error) {
+	return unwrap.Uint160(c.invoker.Call(c.hash, "hash160", h))
+}
+
+// Hash160s invokes `hash160s` method of contract.
+func (c *ContractReader) Hash160s(h []util.Uint160) ([]util.Uint160, error) {
+	return unwrap.ArrayOfUint160(c.invoker.Call(c.hash, "hash160s", h))
+}
+
+// Hash256 invokes `hash256` method of contract.
+func (c *ContractReader) Hash256(h util.Uint256) (util.Uint256, error) {
+	return unwrap.Uint256(c.invoker.Call(c.hash, "hash256", h))
+}
+
+// Hash256s invokes `hash256s` method of contract.
+func (c *ContractReader) Hash256s(h []util.Uint256) ([]util.Uint256, error) {
+	return unwrap.ArrayOfUint256(c.invoker.Call(c.hash, "hash256s", h))
+}
+
+// Int invokes `int` method of contract.
+func (c *ContractReader) Int(i *big.Int) (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "int", i))
+}
+
+// Ints invokes `ints` method of contract.
+func (c *ContractReader) Ints(i []*big.Int) ([]*big.Int, error) {
+	return unwrap.ArrayOfBigInts(c.invoker.Call(c.hash, "ints", i))
+}
+
+// Maps invokes `maps` method of contract.
+func (c *ContractReader) Maps(m map[string]string) (map[string]string, error) {
+	return func (item stackitem.Item, err error) (map[string]string, error) {
+		if err != nil {
+			return nil, err
+		}
+		return func (item stackitem.Item) (map[string]string, error) {
+			m, ok := item.Value().([]stackitem.MapElement)
+			if !ok {
+				return nil, fmt.Errorf("%s is not a map", item.Type().String())
+			}
+			res := make(map[string]string)
+			for i := range m {
+				k, err := func (item stackitem.Item) (string, error) {
+					b, err := item.TryBytes()
+					if err != nil {
+						return "", err
+					}
+					if !utf8.Valid(b) {
+						return "", errors.New("not a UTF-8 string")
+					}
+					return string(b), nil
+				} (m[i].Key)
+				if err != nil {
+					return nil, fmt.Errorf("key %d: %w", i, err)
+				}
+				v, err := func (item stackitem.Item) (string, error) {
+					b, err := item.TryBytes()
+					if err != nil {
+						return "", err
+					}
+					if !utf8.Valid(b) {
+						return "", errors.New("not a UTF-8 string")
+					}
+					return string(b), nil
+				} (m[i].Value)
+				if err != nil {
+					return nil, fmt.Errorf("value %d: %w", i, err)
+				}
+				res[k] = v
+			}
+			return res, nil
+		} (item)
+	} (unwrap.Item(c.invoker.Call(c.hash, "maps", m)))
+}
+
+// PublicKey invokes `publicKey` method of contract.
+func (c *ContractReader) PublicKey(k *keys.PublicKey) (*keys.PublicKey, error) {
+	return unwrap.PublicKey(c.invoker.Call(c.hash, "publicKey", k))
+}
+
+// PublicKeys invokes `publicKeys` method of contract.
+func (c *ContractReader) PublicKeys(k keys.PublicKeys) (keys.PublicKeys, error) {
+	return unwrap.ArrayOfPublicKeys(c.invoker.Call(c.hash, "publicKeys", k))
+}
+
+// Signature invokes `signature` method of contract.
+func (c *ContractReader) Signature(s []byte) ([]byte, error) {
+	return unwrap.Bytes(c.invoker.Call(c.hash, "signature", s))
+}
+
+// Signatures invokes `signatures` method of contract.
+func (c *ContractReader) Signatures(s [][]byte) ([][]byte, error) {
+	return unwrap.ArrayOfBytes(c.invoker.Call(c.hash, "signatures", s))
+}
+
+// String invokes `string` method of contract.
+func (c *ContractReader) String(s string) (string, error) {
+	return unwrap.UTF8String(c.invoker.Call(c.hash, "string", s))
+}
+
+// Strings invokes `strings` method of contract.
+func (c *ContractReader) Strings(s []string) ([]string, error) {
+	return unwrap.ArrayOfUTF8Strings(c.invoker.Call(c.hash, "strings", s))
+}

cli/smartcontract/testdata/verifyrpc/verify.go

@@ -32,15 +32,17 @@ type Actor interface {
 // Contract implements all contract methods.
 type Contract struct {
 	actor Actor
+	hash util.Uint160
 }
 
 // New creates an instance of Contract using Hash and the given Actor.
 func New(actor Actor) *Contract {
-	return &Contract{actor}
+	var hash = Hash
+	return &Contract{actor, hash}
 }
 
 func scriptForVerify() ([]byte, error) {
-	return smartcontract.CreateCallWithAssertScript(Hash, "verify")
+	return smartcontract.CreateCallWithAssertScript(c.hash, "verify")
 }
 
 // Verify creates a transaction invoking `verify` method of the contract.

pkg/smartcontract/binding/generate.go

@@ -50,6 +50,8 @@ type (
 	Config struct {
 		Package  string             `yaml:"package,omitempty"`
 		Manifest *manifest.Manifest `yaml:"-"`
+		// Hash denotes the contract hash and is allowed to be empty for RPC bindings
+		// generation (if not provided by the user).
 		Hash      util.Uint160                 `yaml:"hash,omitempty"`
 		Overrides map[string]Override          `yaml:"overrides,omitempty"`
 		CallFlags map[string]callflag.CallFlag `yaml:"callflags,omitempty"`
@@ -169,10 +171,12 @@ func scTypeToGo(name string, typ smartcontract.ParamType, cfg *Config) (string,
 // and type conversion function. It assumes manifest to be present in the
 // configuration and assumes it to be correct (passing IsValid check).
 func TemplateFromManifest(cfg Config, scTypeConverter func(string, smartcontract.ParamType, *Config) (string, string)) ContractTmpl {
-	hStr := ""
+	var hStr string
+	if !cfg.Hash.Equals(util.Uint160{}) {
 		for _, b := range cfg.Hash.BytesBE() {
 			hStr += fmt.Sprintf("\\x%02x", b)
 		}
+	}
 
 	ctr := ContractTmpl{
 		PackageName:  cfg.Package,

pkg/smartcontract/rpcbinding/binding.go

@@ -11,6 +11,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract/binding"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest/standard"
+	"github.com/nspcc-dev/neo-go/pkg/util"
 )
 
 // The set of constants containing parts of RPC binding template. Each block of code
@@ -39,10 +40,10 @@ func (c *ContractReader) {{.Name}}({{range $index, $arg := .Arguments -}}
 		}
 		return {{addIndent (etTypeConverter .ExtendedReturn "item") "\t"}}
 	} ( {{- end -}} {{if .ItemTo -}} itemTo{{ .ItemTo }}( {{- end -}}
-			unwrap.{{.Unwrapper}}(c.invoker.Call(Hash, "{{ .NameABI }}"
+			unwrap.{{.Unwrapper}}(c.invoker.Call(c.hash, "{{ .NameABI }}"
 		{{- range $arg := .Arguments -}}, {{.Name}}{{end -}} )) {{- if or .ItemTo (eq .Unwrapper "Item") -}} ) {{- end}}
 	{{- else -}} (*result.Invoke, error) {
-	c.invoker.Call(Hash, "{{ .NameABI }}"
+	c.invoker.Call(c.hash, "{{ .NameABI }}"
 		{{- range $arg := .Arguments -}}, {{.Name}}{{end}})
 	{{- end}}
 }
@@ -53,7 +54,7 @@ func (c *ContractReader) {{.Name}}({{range $index, $arg := .Arguments -}}
 // number of result items from the iterator right in the VM and return them to
 // you. It's only limited by VM stack and GAS available for RPC invocations.
 func (c *ContractReader) {{.Name}}Expanded({{range $index, $arg := .Arguments}}{{.Name}} {{.Type}}, {{end}}_numOfIteratorItems int) ([]stackitem.Item, error) {
-	return unwrap.Array(c.invoker.CallAndExpandIterator(Hash, "{{.NameABI}}", _numOfIteratorItems{{range $arg := .Arguments}}, {{.Name}}{{end}}))
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "{{.NameABI}}", _numOfIteratorItems{{range $arg := .Arguments}}, {{.Name}}{{end}}))
 }
 {{ end }}{{ end }}`
 	methodDefinition = `{{ define "METHOD" }}{{ if eq .ReturnType "bool"}}
@@ -61,7 +62,7 @@ func scriptFor{{.Name}}({{range $index, $arg := .Arguments -}}
 	{{- if ne $index 0}}, {{end}}
 		{{- .Name}} {{.Type}}
 	{{- end}}) ([]byte, error) {
-	return smartcontract.CreateCallWithAssertScript(Hash, "{{ .NameABI }}"{{- range $index, $arg := .Arguments -}}, {{.Name}}{{end}})
+	return smartcontract.CreateCallWithAssertScript(c.hash, "{{ .NameABI }}"{{- range $index, $arg := .Arguments -}}, {{.Name}}{{end}})
 }
 {{ end }}
 // {{.Name}} {{.Comment}}
@@ -71,7 +72,7 @@ func (c *Contract) {{.Name}}({{range $index, $arg := .Arguments -}}
 	{{- if ne $index 0}}, {{end}}
 		{{- .Name}} {{.Type}}
 	{{- end}}) (util.Uint256, uint32, error) {
-	{{if ne .ReturnType "bool"}}return c.actor.SendCall(Hash, "{{ .NameABI }}"
+	{{if ne .ReturnType "bool"}}return c.actor.SendCall(c.hash, "{{ .NameABI }}"
 	{{- range $index, $arg := .Arguments -}}, {{.Name}}{{end}}){{else}}script, err := scriptFor{{.Name}}({{- range $index, $arg := .Arguments -}}{{- if ne $index 0}}, {{end}}{{.Name}}{{end}})
 	if err != nil {
 		return util.Uint256{}, 0, err
@@ -86,7 +87,7 @@ func (c *Contract) {{.Name}}Transaction({{range $index, $arg := .Arguments -}}
 	{{- if ne $index 0}}, {{end}}
 		{{- .Name}} {{.Type}}
 	{{- end}}) (*transaction.Transaction, error) {
-	{{if ne .ReturnType "bool"}}return c.actor.MakeCall(Hash, "{{ .NameABI }}"
+	{{if ne .ReturnType "bool"}}return c.actor.MakeCall(c.hash, "{{ .NameABI }}"
 	{{- range $index, $arg := .Arguments -}}, {{.Name}}{{end}}){{else}}script, err := scriptFor{{.Name}}({{- range $index, $arg := .Arguments -}}{{- if ne $index 0}}, {{end}}{{.Name}}{{end}})
 	if err != nil {
 		return nil, err
@@ -102,7 +103,7 @@ func (c *Contract) {{.Name}}Unsigned({{range $index, $arg := .Arguments -}}
 	{{- if ne $index 0}}, {{end}}
 		{{- .Name}} {{.Type}}
 	{{- end}}) (*transaction.Transaction, error) {
-	{{if ne .ReturnType "bool"}}return c.actor.MakeUnsignedCall(Hash, "{{ .NameABI }}", nil
+	{{if ne .ReturnType "bool"}}return c.actor.MakeUnsignedCall(c.hash, "{{ .NameABI }}", nil
 	{{- range $index, $arg := .Arguments -}}, {{.Name}}{{end}}){{else}}script, err := scriptFor{{.Name}}({{- range $index, $arg := .Arguments -}}{{- if ne $index 0}}, {{end}}{{.Name}}{{end}})
 	if err != nil {
 		return nil, err
@@ -117,10 +118,11 @@ package {{.PackageName}}
 import (
 {{range $m := .Imports}}	"{{ $m }}"
 {{end}})
-
+{{if len .Hash}}
 // Hash contains contract hash.
 var Hash = {{ .Hash }}
-{{ range $name, $typ := .NamedTypes }}
+{{end -}}
+{{- range $name, $typ := .NamedTypes }}
 // {{toTypeName $name}} is a contract-specific {{$name}} type used by its methods.
 type {{toTypeName $name}} struct {
 {{- range $m := $typ.Fields}}
@@ -175,6 +177,7 @@ type ContractReader struct {
 	{{if .IsNep17}}nep17.TokenReader
 	{{end -}}
 	invoker Invoker
+	hash util.Uint160
 }
 {{end -}}
 {{- if .HasWriter}}
@@ -189,37 +192,44 @@ type Contract struct {
 	{{if .IsNep17}}nep17.TokenWriter
 	{{end -}}
 	actor Actor
+	hash util.Uint160
 }
 {{end -}}
 {{- if .HasReader}}
-// NewReader creates an instance of ContractReader using Hash and the given Invoker.
+// NewReader creates an instance of ContractReader using {{if len .Hash -}}Hash{{- else -}}provided contract hash{{- end}} and the given Invoker.
-func NewReader(invoker Invoker) *ContractReader {
+func NewReader(invoker Invoker{{- if not (len .Hash) -}}, hash util.Uint160{{- end -}}) *ContractReader {
+	{{if len .Hash -}}
+	var hash = Hash
+	{{end -}}
 	return &ContractReader{
-		{{- if .IsNep11D}}*nep11.NewDivisibleReader(invoker, Hash), {{end}}
+		{{- if .IsNep11D}}*nep11.NewDivisibleReader(invoker, hash), {{end}}
-		{{- if .IsNep11ND}}*nep11.NewNonDivisibleReader(invoker, Hash), {{end}}
+		{{- if .IsNep11ND}}*nep11.NewNonDivisibleReader(invoker, hash), {{end}}
-		{{- if .IsNep17}}*nep17.NewReader(invoker, Hash), {{end -}}
+		{{- if .IsNep17}}*nep17.NewReader(invoker, hash), {{end -}}
-		invoker}
+		invoker, hash}
 }
 {{end -}}
 {{- if .HasWriter}}
-// New creates an instance of Contract using Hash and the given Actor.
+// New creates an instance of Contract using {{if len .Hash -}}Hash{{- else -}}provided contract hash{{- end}} and the given Actor.
-func New(actor Actor) *Contract {
+func New(actor Actor{{- if not (len .Hash) -}}, hash util.Uint160{{- end -}}) *Contract {
-	{{if .IsNep11D}}var nep11dt = nep11.NewDivisible(actor, Hash)
+	{{if len .Hash -}}
+	var hash = Hash
 	{{end -}}
-	{{if .IsNep11ND}}var nep11ndt = nep11.NewNonDivisible(actor, Hash)
+	{{if .IsNep11D}}var nep11dt = nep11.NewDivisible(actor, hash)
 	{{end -}}
-	{{if .IsNep17}}var nep17t = nep17.New(actor, Hash)
+	{{if .IsNep11ND}}var nep11ndt = nep11.NewNonDivisible(actor, hash)
+	{{end -}}
+	{{if .IsNep17}}var nep17t = nep17.New(actor, hash)
 	{{end -}}
 	return &Contract{
 		{{- if .HasReader}}ContractReader{
 		{{- if .IsNep11D}}nep11dt.DivisibleReader, {{end -}}
 		{{- if .IsNep11ND}}nep11ndt.NonDivisibleReader, {{end -}}
 		{{- if .IsNep17}}nep17t.TokenReader, {{end -}}
-		actor}, {{end -}}
+		actor, hash}, {{end -}}
 		{{- if .IsNep11D}}nep11dt.DivisibleWriter, {{end -}}
 		{{- if .IsNep11ND}}nep11ndt.BaseWriter, {{end -}}
 		{{- if .IsNep17}}nep17t.TokenWriter, {{end -}}
-		actor}
+		actor, hash}
 }
 {{end -}}
 {{- range $m := .SafeMethods }}{{template "SAFEMETHOD" $m }}{{ end -}}
@@ -660,7 +670,9 @@ func scTemplateToRPC(cfg binding.Config, ctr ContractTmpl, imports map[string]st
 	for i := range ctr.Imports {
 		imports[ctr.Imports[i]] = struct{}{}
 	}
+	if !cfg.Hash.Equals(util.Uint160{}) {
 		ctr.Hash = fmt.Sprintf("%#v", cfg.Hash)
+	}
 	for i := 0; i < len(ctr.Methods); i++ {
 		abim := cfg.Manifest.ABI.GetMethod(ctr.Methods[i].NameABI, len(ctr.Methods[i].Arguments))
 		if abim.Safe {