Merge pull request #1607 from nspcc-dev/compiler/safe

Set `Safe` flag in emitted manifest

cli/smartcontract/smart_contract.go

@@ -363,6 +363,7 @@ func initSmartContract(ctx *cli.Context) error {
 	m := ProjectConfig{
 		Name:               contractName,
 		SupportedStandards: []string{},
+		SafeMethods:        []string{},
 		Events: []manifest.Event{
 			{
 				Name: "Hello world!",
@@ -423,6 +424,7 @@ func contractCompile(ctx *cli.Context) error {
 		o.Name = conf.Name
 		o.ContractEvents = conf.Events
 		o.ContractSupportedStandards = conf.SupportedStandards
+		o.SafeMethods = conf.SafeMethods
 	}
 
 	result, err := compiler.CompileAndSave(src, o)
@@ -646,6 +648,7 @@ func testInvokeScript(ctx *cli.Context) error {
 // ProjectConfig contains project metadata.
 type ProjectConfig struct {
 	Name               string
+	SafeMethods        []string
 	SupportedStandards []string
 	Events             []manifest.Event
 }

cli/smartcontract/smart_contract_test.go

@@ -59,6 +59,7 @@ func RuntimeNotify(args []interface{}) {
 	require.NoError(t, err)
 	require.Equal(t,
 		`name: testContract
+safemethods: []
 supportedstandards: []
 events:
 - name: Hello world!

examples/token-sale/token_sale.yml

@@ -1,5 +1,6 @@
 name: "My awesome token"
 supportedstandards: ["NEP-17"]
+safemethods: ["balanceOf", "decimals", "symbol", "totalSupply"]
 events:
 - name: Transfer
   parameters:

examples/token/token.yml

@@ -1,5 +1,6 @@
 name: "Awesome NEO Token"
 supportedstandards: ["NEP-17"]
+safemethods: ["balanceOf", "decimals", "symbol", "totalSupply"]
 events:
   - name: Transfer
     parameters:

internal/testchain/transaction.go

@@ -62,7 +62,7 @@ func NewDeployTx(name string, sender util.Uint160, r gio.Reader) (*transaction.T
 		return nil, util.Uint160{}, err
 	}
 
-	m, err := di.ConvertToManifest(name, nil)
+	m, err := di.ConvertToManifest(&compiler.Options{Name: name})
 	if err != nil {
 		return nil, util.Uint160{}, err
 	}

pkg/compiler/compiler.go

@@ -51,6 +51,9 @@ type Options struct {
 
 	// The list of standards supported by the contract.
 	ContractSupportedStandards []string
+
+	// SafeMethods contains list of methods which will be marked as safe in manifest.
+	SafeMethods []string
 }
 
 type buildInfo struct {
@@ -219,7 +222,7 @@ func CompileAndSave(src string, o *Options) ([]byte, error) {
 	}
 
 	if o.ManifestFile != "" {
-		m, err := di.ConvertToManifest(o.Name, o.ContractEvents, o.ContractSupportedStandards...)
+		m, err := di.ConvertToManifest(o)
 		if err != nil {
 			return b, fmt.Errorf("failed to convert debug info to manifest: %w", err)
 		}

pkg/compiler/debug.go

@@ -334,49 +334,27 @@ func (d *DebugParam) UnmarshalJSON(data []byte) error {
 }
 
 // ToManifestParameter converts DebugParam to manifest.Parameter
-func (d *DebugParam) ToManifestParameter() (manifest.Parameter, error) {
+func (d *DebugParam) ToManifestParameter() manifest.Parameter {
 	return manifest.Parameter{
 		Name: d.Name,
 		Type: d.TypeSC,
-	}, nil
+	}
 }
 
 // ToManifestMethod converts MethodDebugInfo to manifest.Method
-func (m *MethodDebugInfo) ToManifestMethod() (manifest.Method, error) {
+func (m *MethodDebugInfo) ToManifestMethod() manifest.Method {
 	var (
 		result manifest.Method
-		err    error
 	)
 	parameters := make([]manifest.Parameter, len(m.Parameters))
 	for i, p := range m.Parameters {
-		parameters[i], err = p.ToManifestParameter()
+		parameters[i] = p.ToManifestParameter()
-		if err != nil {
-			return result, err
-		}
 	}
 	result.Name = m.Name.Name
 	result.Offset = int(m.Range.Start)
 	result.Parameters = parameters
 	result.ReturnType = m.ReturnTypeSC
-	return result, nil
+	return result
-}
-
-// ToManifestEvent converts EventDebugInfo to manifest.Event
-func (e *EventDebugInfo) ToManifestEvent() (manifest.Event, error) {
-	var (
-		result manifest.Event
-		err    error
-	)
-	parameters := make([]manifest.Parameter, len(e.Parameters))
-	for i, p := range e.Parameters {
-		parameters[i], err = p.ToManifestParameter()
-		if err != nil {
-			return result, err
-		}
-	}
-	result.Name = e.Name
-	result.Parameters = parameters
-	return result, nil
 }
 
 // MarshalJSON implements json.Marshaler interface.
@@ -425,31 +403,31 @@ func parsePairJSON(data []byte, sep string) (string, string, error) {
 
 // ConvertToManifest converts contract to the manifest.Manifest struct for debugger.
 // Note: manifest is taken from the external source, however it can be generated ad-hoc. See #1038.
-func (di *DebugInfo) ConvertToManifest(name string, events []manifest.Event, supportedStandards ...string) (*manifest.Manifest, error) {
+func (di *DebugInfo) ConvertToManifest(o *Options) (*manifest.Manifest, error) {
-	if di.MainPkg == "" {
-		return nil, errors.New("no Main method was found")
-	}
 	methods := make([]manifest.Method, 0)
 	for _, method := range di.Methods {
 		if method.IsExported && method.IsFunction && method.Name.Namespace == di.MainPkg {
-			mMethod, err := method.ToManifestMethod()
+			mMethod := method.ToManifestMethod()
-			if err != nil {
+			for i := range o.SafeMethods {
-				return nil, err
+				if mMethod.Name == o.SafeMethods[i] {
+					mMethod.Safe = true
+					break
+				}
 			}
 			methods = append(methods, mMethod)
 		}
 	}
 
-	result := manifest.NewManifest(name)
+	result := manifest.NewManifest(o.Name)
-	if supportedStandards != nil {
+	if o.ContractSupportedStandards != nil {
-		result.SupportedStandards = supportedStandards
+		result.SupportedStandards = o.ContractSupportedStandards
-	}
-	if events == nil {
-		events = make([]manifest.Event, 0)
 	}
 	result.ABI = manifest.ABI{
 		Methods: methods,
-		Events:  events,
+		Events:  o.ContractEvents,
+	}
+	if result.ABI.Events == nil {
+		result.ABI.Events = make([]manifest.Event, 0)
 	}
 	result.Permissions = []manifest.Permission{
 		{

pkg/compiler/debug_test.go

@@ -150,7 +150,7 @@ func _deploy(isUpdate bool) {}
 	}
 
 	t.Run("convert to Manifest", func(t *testing.T) {
-		actual, err := d.ConvertToManifest("MyCTR", nil)
+		actual, err := d.ConvertToManifest(&Options{Name: "MyCTR", SafeMethods: []string{"methodInt", "methodString"}})
 		require.NoError(t, err)
 		// note: offsets are hard to predict, so we just take them from the output
 		expected := &manifest.Manifest{
@@ -183,12 +183,14 @@ func _deploy(isUpdate bool) {}
 							},
 						},
 						ReturnType: smartcontract.IntegerType,
+						Safe:       true,
 					},
 					{
 						Name:       "methodString",
 						Offset:     101,
 						Parameters: []manifest.Parameter{},
 						ReturnType: smartcontract.StringType,
+						Safe:       true,
 					},
 					{
 						Name:       "methodByteArray",

pkg/compiler/interop_test.go

@@ -128,7 +128,7 @@ func TestAppCall(t *testing.T) {
 	}`
 	barCtr, di, err := compiler.CompileWithDebugInfo("bar.go", strings.NewReader(srcDeep))
 	require.NoError(t, err)
-	mBar, err := di.ConvertToManifest("Bar", nil)
+	mBar, err := di.ConvertToManifest(&compiler.Options{Name: "Bar"})
 	require.NoError(t, err)
 
 	barH := hash.Hash160(barCtr)
@@ -160,7 +160,7 @@ func TestAppCall(t *testing.T) {
 
 	inner, di, err := compiler.CompileWithDebugInfo("foo.go", strings.NewReader(srcInner))
 	require.NoError(t, err)
-	m, err := di.ConvertToManifest("Foo", nil)
+	m, err := di.ConvertToManifest(&compiler.Options{Name: "Foo"})
 	require.NoError(t, err)
 
 	ih := hash.Hash160(inner)

pkg/smartcontract/manifest/standard/nep17.go

@@ -14,18 +14,22 @@ var nep17 = &manifest.Manifest{
 					{Type: smartcontract.Hash160Type},
 				},
 				ReturnType: smartcontract.IntegerType,
+				Safe:       true,
 			},
 			{
 				Name:       "decimals",
 				ReturnType: smartcontract.IntegerType,
+				Safe:       true,
 			},
 			{
 				Name:       "symbol",
 				ReturnType: smartcontract.StringType,
+				Safe:       true,
 			},
 			{
 				Name:       "totalSupply",
 				ReturnType: smartcontract.IntegerType,
+				Safe:       true,
 			},
 			{
 				Name: "transfer",