rpc: add notifications into the invoke* result

pkg/rpc/response/result/invoke.go

@@ -4,7 +4,9 @@ import (
 	"encoding/json"
 	"fmt"
 
+	"github.com/nspcc-dev/neo-go/pkg/core/interop"
 	"github.com/nspcc-dev/neo-go/pkg/core/interop/iterator"
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/vm"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
@@ -18,6 +20,7 @@ type Invoke struct {
 	Script                 []byte
 	Stack                  []stackitem.Item
 	FaultException         string
+	Notifications          []state.NotificationEvent
 	Transaction            *transaction.Transaction
 	Diagnostics            *InvokeDiag
 	maxIteratorResultItems int
@@ -30,21 +33,26 @@ type InvokeDiag struct {
 }
 
 // NewInvoke returns new Invoke structure with the given fields set.
-func NewInvoke(vm *vm.VM, finalize func(), script []byte, faultException string, maxIteratorResultItems int) *Invoke {
+func NewInvoke(ic *interop.Context, script []byte, faultException string, maxIteratorResultItems int) *Invoke {
 	var diag *InvokeDiag
-	tree := vm.GetInvocationTree()
+	tree := ic.VM.GetInvocationTree()
 	if tree != nil {
 		diag = &InvokeDiag{Invocations: tree.Calls}
 	}
+	notifications := ic.Notifications
+	if notifications == nil {
+		notifications = make([]state.NotificationEvent, 0)
+	}
 	return &Invoke{
-		State:                  vm.State().String(),
+		State:                  ic.VM.State().String(),
-		GasConsumed:            vm.GasConsumed(),
+		GasConsumed:            ic.VM.GasConsumed(),
 		Script:                 script,
-		Stack:                  vm.Estack().ToArray(),
+		Stack:                  ic.VM.Estack().ToArray(),
 		FaultException:         faultException,
+		Notifications:          notifications,
 		Diagnostics:            diag,
 		maxIteratorResultItems: maxIteratorResultItems,
-		finalize:               finalize,
+		finalize:               ic.Finalize,
 	}
 }
 
@@ -54,6 +62,7 @@ type invokeAux struct {
 	Script         []byte                    `json:"script"`
 	Stack          json.RawMessage           `json:"stack"`
 	FaultException string                    `json:"exception,omitempty"`
+	Notifications  []state.NotificationEvent `json:"notifications"`
 	Transaction    []byte                    `json:"tx,omitempty"`
 	Diagnostics    *InvokeDiag               `json:"diagnostics,omitempty"`
 }
@@ -133,6 +142,7 @@ func (r Invoke) MarshalJSON() ([]byte, error) {
 		State:          r.State,
 		Stack:          st,
 		FaultException: r.FaultException,
+		Notifications:  r.Notifications,
 		Transaction:    txbytes,
 		Diagnostics:    r.Diagnostics,
 	})
@@ -189,6 +199,7 @@ func (r *Invoke) UnmarshalJSON(data []byte) error {
 	r.Script = aux.Script
 	r.State = aux.State
 	r.FaultException = aux.FaultException
+	r.Notifications = aux.Notifications
 	r.Transaction = tx
 	r.Diagnostics = aux.Diagnostics
 	return nil

pkg/rpc/response/result/invoke_test.go

@@ -6,6 +6,7 @@ import (
 	"math/big"
 	"testing"
 
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
@@ -25,6 +26,7 @@ func TestInvoke_MarshalJSON(t *testing.T) {
 		Script:         []byte{10},
 		Stack:          []stackitem.Item{stackitem.NewBigInteger(big.NewInt(1))},
 		FaultException: "",
+		Notifications:  []state.NotificationEvent{},
 		Transaction:    tx,
 	}
 
@@ -37,6 +39,7 @@ func TestInvoke_MarshalJSON(t *testing.T) {
 		"stack":[
 			{"type":"Integer","value":"1"}
 		],
+		"notifications":[],
 		"tx":"` + base64.StdEncoding.EncodeToString(tx.Bytes()) + `"
 }`
 	require.JSONEq(t, expected, string(data))

pkg/rpc/server/server.go

@@ -1715,7 +1715,7 @@ func (s *Server) runScriptInVM(t trigger.Type, script []byte, contractScriptHash
 	if err != nil {
 		faultException = err.Error()
 	}
-	return result.NewInvoke(ic.VM, ic.Finalize, script, faultException, s.config.MaxIteratorResultItems), nil
+	return result.NewInvoke(ic, script, faultException, s.config.MaxIteratorResultItems), nil
 }
 
 // submitBlock broadcasts a raw block over the NEO network.

pkg/rpc/server/server_test.go

@@ -880,6 +880,29 @@ var rpcTestCases = map[string][]rpcTestCase{
 				assert.NotEqual(t, 0, res.GasConsumed)
 			},
 		},
+		{
+			name:   "positive, with notifications",
+			params: `["` + NNSHash.StringLE() + `", "transfer", [{"type":"Hash160", "value":"0x0bcd2978634d961c24f5aea0802297ff128724d6"},{"type":"String", "value":"neo.com"},{"type":"Any", "value":null}],["0xb248508f4ef7088e10c48f14d04be3272ca29eee"]]`,
+			result: func(e *executor) interface{} {
+				script := []byte{0x0b, 0x0c, 0x07, 0x6e, 0x65, 0x6f, 0x2e, 0x63, 0x6f, 0x6d, 0x0c, 0x14, 0xd6, 0x24, 0x87, 0x12, 0xff, 0x97, 0x22, 0x80, 0xa0, 0xae, 0xf5, 0x24, 0x1c, 0x96, 0x4d, 0x63, 0x78, 0x29, 0xcd, 0x0b, 0x13, 0xc0, 0x1f, 0x0c, 0x08, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x66, 0x65, 0x72, 0x0c, 0x14, 0xdc, 0xe2, 0xd3, 0xba, 0x0e, 0xbb, 0xa9, 0xf4, 0x44, 0xac, 0xbf, 0x50, 0x08, 0x76, 0xfd, 0x7c, 0x3e, 0x2b, 0x60, 0x3a, 0x41, 0x62, 0x7d, 0x5b, 0x52}
+				return &result.Invoke{
+					State:       "HALT",
+					GasConsumed: 33767940,
+					Script:      script,
+					Stack:       []stackitem.Item{stackitem.Make(true)},
+					Notifications: []state.NotificationEvent{{
+						ScriptHash: NNSHash,
+						Name:       "Transfer",
+						Item: stackitem.NewArray([]stackitem.Item{
+							stackitem.Make([]byte{0xee, 0x9e, 0xa2, 0x2c, 0x27, 0xe3, 0x4b, 0xd0, 0x14, 0x8f, 0xc4, 0x10, 0x8e, 0x08, 0xf7, 0x4e, 0x8f, 0x50, 0x48, 0xb2}),
+							stackitem.Make([]byte{0xd6, 0x24, 0x87, 0x12, 0xff, 0x97, 0x22, 0x80, 0xa0, 0xae, 0xf5, 0x24, 0x1c, 0x96, 0x4d, 0x63, 0x78, 0x29, 0xcd, 0x0b}),
+							stackitem.Make(1),
+							stackitem.Make("neo.com"),
+						}),
+					}},
+				}
+			},
+		},
 		{
 			name:   "positive, verbose",
 			params: `["` + NNSHash.StringLE() + `", "resolve", [{"type":"String", "value":"neo.com"},{"type":"Integer","value":1}], [], true]`,
@@ -892,6 +915,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 					GasConsumed:   17958510,
 					Script:        script,
 					Stack:         []stackitem.Item{stackitem.Make("1.2.3.4")},
+					Notifications: []state.NotificationEvent{},
 					Diagnostics: &result.InvokeDiag{
 						Invocations: []*vm.InvocationTree{{
 							Current: hash.Hash160(script),
@@ -967,6 +991,7 @@ var rpcTestCases = map[string][]rpcTestCase{
 					Script:         script,
 					Stack:          []stackitem.Item{},
 					FaultException: "at instruction 0 (ROT): too big index",
+					Notifications:  []state.NotificationEvent{},
 					Diagnostics: &result.InvokeDiag{
 						Invocations: []*vm.InvocationTree{{
 							Current: hash.Hash160(script),