handlers/application/menuhandler.go

@@ -125,6 +125,12 @@ func (h *MenuHandlers) Init(ctx context.Context, sym string, input []byte) (reso
 
 	h.st = h.pe.GetState()
 	h.ca = h.pe.GetMemory()
+
+	if len(input) == 0 {
+		// move to the top node
+		h.st.Code = []byte{}
+	}
+
 	sessionId, ok := ctx.Value("SessionId").(string)
 	if ok {
 		ctx = context.WithValue(ctx, "SessionId", sessionId)

handlers/application/menuhandler_test.go

@@ -175,6 +175,20 @@ func TestInit(t *testing.T) {
 			input:          []byte("1"),
 			expectedResult: resource.Result{},
 		},
+		{
+			name: "Move to top node on empty input",
+			setup: func() (*MenuHandlers, context.Context) {
+				pe := persist.NewPersister(testStore).WithSession(sessionId).WithContent(st, ca)
+				h := &MenuHandlers{
+					flagManager: fm,
+					pe:          pe,
+				}
+				st.Code = []byte("some pending bytecode")
+				return h, context.WithValue(ctx, "SessionId", sessionId)
+			},
+			input:          []byte(""),
+			expectedResult: resource.Result{},
+		},
 	}
 
 	for _, tt := range tests {

handlers/local.go

@@ -10,7 +10,6 @@ import (
 	"git.defalsify.org/vise.git/resource"
 
 	"git.grassecon.net/grassrootseconomics/sarafu-api/remote"
-	sarafu_engine "git.grassecon.net/grassrootseconomics/sarafu-vise/engine"
 	"git.grassecon.net/grassrootseconomics/sarafu-vise/handlers/application"
 )
 
@@ -25,7 +24,7 @@ type LocalHandlerService struct {
 	UserdataStore *db.Db
 	Cfg           engine.Config
 	Rs            resource.Resource
-	first         resource.EntryFunc
+	first	resource.EntryFunc
 }
 
 func NewLocalHandlerService(ctx context.Context, fp string, debug bool, dbResource *resource.DbResource, cfg engine.Config, rs resource.Resource) (*LocalHandlerService, error) {
@@ -126,8 +125,7 @@ func (ls *LocalHandlerService) GetHandler(accountService remote.AccountService)
 }
 
 func (ls *LocalHandlerService) GetEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) engine.Engine {
-	se := sarafu_engine.NewSarafuEngine(cfg, rs)
-	en := se.Engine.(*engine.DefaultEngine)
+	en := engine.NewEngine(cfg, rs)
 	if ls.first != nil {
 		en = en.WithFirst(ls.first)
 	}
@@ -135,6 +133,5 @@ func (ls *LocalHandlerService) GetEngine(cfg engine.Config, rs resource.Resource
 	if cfg.EngineDebug {
 		en = en.WithDebug(nil)
 	}
-
-	return se
+	return en
 }