Add easy access to unmarshalled header

common/commonspace/object/tree/objecttree/mock_objecttree/mock_objecttree.go

@@ -302,3 +302,17 @@ func (mr *MockObjectTreeMockRecorder) Unlock() *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Unlock", reflect.TypeOf((*MockObjectTree)(nil).Unlock))
 }
+
+// UnmarshalledHeader mocks base method.
+func (m *MockObjectTree) UnmarshalledHeader() *objecttree.Change {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "UnmarshalledHeader")
+	ret0, _ := ret[0].(*objecttree.Change)
+	return ret0
+}
+
+// UnmarshalledHeader indicates an expected call of UnmarshalledHeader.
+func (mr *MockObjectTreeMockRecorder) UnmarshalledHeader() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UnmarshalledHeader", reflect.TypeOf((*MockObjectTree)(nil).UnmarshalledHeader))
+}

common/commonspace/object/tree/objecttree/objecttree.go

@@ -48,6 +48,7 @@ type ObjectTree interface {
 
 	Id() string
 	Header() *treechangeproto.RawTreeChangeWithId
+	UnmarshalledHeader() *Change
 	Heads() []string
 	Root() *Change
 	HasChanges(...string) bool
@@ -77,7 +78,8 @@ type objectTree struct {
 	aclList         list2.AclList
 
 	id      string
-	root *treechangeproto.RawTreeChangeWithId
+	rawRoot *treechangeproto.RawTreeChangeWithId
+	root    *Change
 	tree    *Tree
 
 	keys map[uint64]*symmetric.Key
@@ -142,6 +144,10 @@ func (ot *objectTree) Id() string {
 }
 
 func (ot *objectTree) Header() *treechangeproto.RawTreeChangeWithId {
+	return ot.rawRoot
+}
+
+func (ot *objectTree) UnmarshalledHeader() *Change {
 	return ot.root
 }
 

common/commonspace/object/tree/objecttree/objecttreefactory.go

@@ -150,18 +150,17 @@ func buildObjectTree(deps objectTreeDeps) (ObjectTree, error) {
 	}
 
 	objTree.id = objTree.treeStorage.Id()
-
+	objTree.rawRoot, err = objTree.treeStorage.Root()
-	objTree.id = objTree.treeStorage.Id()
-	objTree.root, err = objTree.treeStorage.Root()
 	if err != nil {
 		return nil, err
 	}
 
 	// verifying root
-	_, err = objTree.changeBuilder.ConvertFromRaw(objTree.root, true)
+	header, err := objTree.changeBuilder.ConvertFromRaw(objTree.rawRoot, true)
 	if err != nil {
 		return nil, err
 	}
+	objTree.root = header
 
 	return objTree, nil
 }

common/commonspace/object/tree/synctree/mock_synctree/mock_synctree.go

@@ -455,6 +455,20 @@ func (mr *MockSyncTreeMockRecorder) Unlock() *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Unlock", reflect.TypeOf((*MockSyncTree)(nil).Unlock))
 }
 
+// UnmarshalledHeader mocks base method.
+func (m *MockSyncTree) UnmarshalledHeader() *objecttree.Change {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "UnmarshalledHeader")
+	ret0, _ := ret[0].(*objecttree.Change)
+	return ret0
+}
+
+// UnmarshalledHeader indicates an expected call of UnmarshalledHeader.
+func (mr *MockSyncTreeMockRecorder) UnmarshalledHeader() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UnmarshalledHeader", reflect.TypeOf((*MockSyncTree)(nil).UnmarshalledHeader))
+}
+
 // MockReceiveQueue is a mock of ReceiveQueue interface.
 type MockReceiveQueue struct {
 	ctrl     *gomock.Controller