// `autogen:go.mod` module go.wit.com/toolkits/tree go 1.22 toolchain go1.23.4 require ( go.wit.com/log v0.22.11 go.wit.com/widget v1.1.28 google.golang.org/protobuf v1.36.5 ) // `autogen:go.sum` github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU= github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= go.wit.com/log v0.22.11 h1:BiJe+S81kWrMqW1QyZVu1Es2d//WG9FAcZQEhZkkM4c= go.wit.com/log v0.22.11/go.mod h1:LsP0nAH4hZEf2qj/F5UmGQT0OEJ3Q5698/P8ZOI2JuE= go.wit.com/widget v1.1.28 h1:xBrJBJ/5qGXTRE2uyOEcCV+6xAq8+3kBgqsJc1kqkiM= go.wit.com/widget v1.1.28/go.mod h1:9P1d7NRtyFwEkMS3ccpTEyRqZaFnScbWvE4MB5ooeZI= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM= google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE= // `autogen:widget.marshal.pb.go` // Code generated by go.wit.com/apps/autogenpb DO NOT EDIT. // This file was autogenerated with autogenpb v0.0.50 2025-02-07_10:21:13_UTC // go install go.wit.com/apps/autogenpb@latest // // define which structs (messages) you want to use in the .proto file // Then sort.pb.go and marshal.pb.go files are autogenerated // // autogenpb uses it and has an example .proto file with instructions // package tree // `autogen:widget.pb.go` // Code modified by go.wit.com/apps/autogenpb DO NOT EDIT. // // user defined Mutex locks were auto added // // autogenpb version & build time: v0.0.50 2025-02-07_10:21:13_UTC // autogenpb auto generates Sort(), Unique() and Marshal() functions // go install go.wit.com/apps/autogenpb@latest // Code generated by protoc-gen-go. DO NOT EDIT. // versions: // protoc-gen-go v1.35.2-devel // protoc v3.21.12 // source: widget.proto // playing around with ideas here package tree // autogenpb changed the package name import ( reflect "reflect" sync "sync" protoreflect "google.golang.org/protobuf/reflect/protoreflect" protoimpl "google.golang.org/protobuf/runtime/protoimpl" _ "google.golang.org/protobuf/types/known/timestamppb" ) const ( // Verify that this generated code is sufficiently up-to-date. _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion) // Verify that runtime/protoimpl is sufficiently up-to-date. _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20) ) type Size struct { sync.RWMutex // auto-added by go.wit.com/apps/autogenpb state protoimpl.MessageState sizeCache protoimpl.SizeCache unknownFields protoimpl.UnknownFields Width int64 `protobuf:"varint,1,opt,name=width,proto3" json:"width,omitempty"` Height int64 `protobuf:"varint,2,opt,name=height,proto3" json:"height,omitempty"` } func (x *Size) Reset() { *x = Size{} mi := &file_widget_proto_msgTypes[0] ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms.StoreMessageInfo(mi) } func (x *Size) String() string { return protoimpl.X.MessageStringOf(x) } func (*Size) ProtoMessage() {} func (x *Size) ProtoReflect() protoreflect.Message { mi := &file_widget_proto_msgTypes[0] if x != nil { ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) if ms.LoadMessageInfo() == nil { ms.StoreMessageInfo(mi) } return ms } return mi.MessageOf(x) } // Deprecated: Use Size.ProtoReflect.Descriptor instead. func (*Size) Descriptor() ([]byte, []int) { return file_widget_proto_rawDescGZIP(), []int{0} } func (x *Size) GetWidth() int64 { if x != nil { return x.Width } return 0 } func (x *Size) GetHeight() int64 { if x != nil { return x.Height } return 0 } type Location struct { sync.RWMutex // auto-added by go.wit.com/apps/autogenpb state protoimpl.MessageState sizeCache protoimpl.SizeCache unknownFields protoimpl.UnknownFields X int64 `protobuf:"varint,1,opt,name=x,proto3" json:"x,omitempty"` Y int64 `protobuf:"varint,2,opt,name=y,proto3" json:"y,omitempty"` } func (x *Location) Reset() { *x = Location{} mi := &file_widget_proto_msgTypes[1] ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms.StoreMessageInfo(mi) } func (x *Location) String() string { return protoimpl.X.MessageStringOf(x) } func (*Location) ProtoMessage() {} func (x *Location) ProtoReflect() protoreflect.Message { mi := &file_widget_proto_msgTypes[1] if x != nil { ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) if ms.LoadMessageInfo() == nil { ms.StoreMessageInfo(mi) } return ms } return mi.MessageOf(x) } // Deprecated: Use Location.ProtoReflect.Descriptor instead. func (*Location) Descriptor() ([]byte, []int) { return file_widget_proto_rawDescGZIP(), []int{1} } func (x *Location) GetX() int64 { if x != nil { return x.X } return 0 } func (x *Location) GetY() int64 { if x != nil { return x.Y } return 0 } type Tree struct { sync.RWMutex // auto-added by go.wit.com/apps/autogenpb state protoimpl.MessageState sizeCache protoimpl.SizeCache unknownFields protoimpl.UnknownFields Parent *Widget `protobuf:"bytes,1,opt,name=parent,proto3" json:"parent,omitempty"` Children []*Widget `protobuf:"bytes,2,rep,name=children,proto3" json:"children,omitempty"` } func (x *Tree) Reset() { *x = Tree{} mi := &file_widget_proto_msgTypes[2] ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms.StoreMessageInfo(mi) } func (x *Tree) String() string { return protoimpl.X.MessageStringOf(x) } func (*Tree) ProtoMessage() {} func (x *Tree) ProtoReflect() protoreflect.Message { mi := &file_widget_proto_msgTypes[2] if x != nil { ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) if ms.LoadMessageInfo() == nil { ms.StoreMessageInfo(mi) } return ms } return mi.MessageOf(x) } // Deprecated: Use Tree.ProtoReflect.Descriptor instead. func (*Tree) Descriptor() ([]byte, []int) { return file_widget_proto_rawDescGZIP(), []int{2} } func (x *Tree) GetParent() *Widget { if x != nil { return x.Parent } return nil } func (x *Tree) GetChildren() []*Widget { if x != nil { return x.Children } return nil } type Widget struct { sync.RWMutex // auto-added by go.wit.com/apps/autogenpb state protoimpl.MessageState sizeCache protoimpl.SizeCache unknownFields protoimpl.UnknownFields Id int64 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"` Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"` Size *Size `protobuf:"bytes,3,opt,name=size,proto3" json:"size,omitempty"` Location *Location `protobuf:"bytes,4,opt,name=location,proto3" json:"location,omitempty"` Color string `protobuf:"bytes,5,opt,name=color,proto3" json:"color,omitempty"` } func (x *Widget) Reset() { *x = Widget{} mi := &file_widget_proto_msgTypes[3] ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms.StoreMessageInfo(mi) } func (x *Widget) String() string { return protoimpl.X.MessageStringOf(x) } func (*Widget) ProtoMessage() {} func (x *Widget) ProtoReflect() protoreflect.Message { mi := &file_widget_proto_msgTypes[3] if x != nil { ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) if ms.LoadMessageInfo() == nil { ms.StoreMessageInfo(mi) } return ms } return mi.MessageOf(x) } // Deprecated: Use Widget.ProtoReflect.Descriptor instead. func (*Widget) Descriptor() ([]byte, []int) { return file_widget_proto_rawDescGZIP(), []int{3} } func (x *Widget) GetId() int64 { if x != nil { return x.Id } return 0 } func (x *Widget) GetName() string { if x != nil { return x.Name } return "" } func (x *Widget) GetSize() *Size { if x != nil { return x.Size } return nil } func (x *Widget) GetLocation() *Location { if x != nil { return x.Location } return nil } func (x *Widget) GetColor() string { if x != nil { return x.Color } return "" } type Widgets struct { sync.RWMutex // auto-added by go.wit.com/apps/autogenpb state protoimpl.MessageState sizeCache protoimpl.SizeCache unknownFields protoimpl.UnknownFields Uuid string `protobuf:"bytes,1,opt,name=uuid,proto3" json:"uuid,omitempty"` // `autogenpb:uuid:0331fcd7-3c8c-43e4-be1b-77db6a6bc58c` Version string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"` // `autogenpb:version:v1` Widgets []*Widget `protobuf:"bytes,3,rep,name=Widgets,proto3" json:"Widgets,omitempty"` } func (x *Widgets) Reset() { *x = Widgets{} mi := &file_widget_proto_msgTypes[4] ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms.StoreMessageInfo(mi) } func (x *Widgets) String() string { return protoimpl.X.MessageStringOf(x) } func (*Widgets) ProtoMessage() {} func (x *Widgets) ProtoReflect() protoreflect.Message { mi := &file_widget_proto_msgTypes[4] if x != nil { ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) if ms.LoadMessageInfo() == nil { ms.StoreMessageInfo(mi) } return ms } return mi.MessageOf(x) } // Deprecated: Use Widgets.ProtoReflect.Descriptor instead. func (*Widgets) Descriptor() ([]byte, []int) { return file_widget_proto_rawDescGZIP(), []int{4} } func (x *Widgets) GetUuid() string { if x != nil { return x.Uuid } return "" } func (x *Widgets) GetVersion() string { if x != nil { return x.Version } return "" } func (x *Widgets) GetWidgets() []*Widget { if x != nil { return x.Widgets } return nil } var File_widget_proto protoreflect.FileDescriptor var file_widget_proto_rawDesc = []byte{ 0x0a, 0x0c, 0x77, 0x69, 0x64, 0x67, 0x65, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x04, 0x6d, 0x61, 0x69, 0x6e, 0x1a, 0x1f, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x34, 0x0a, 0x04, 0x53, 0x69, 0x7a, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x77, 0x69, 0x64, 0x74, 0x68, 0x18, 0x01, 0x20, 0x01, 0x28, 0x03, 0x52, 0x05, 0x77, 0x69, 0x64, 0x74, 0x68, 0x12, 0x16, 0x0a, 0x06, 0x68, 0x65, 0x69, 0x67, 0x68, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x52, 0x06, 0x68, 0x65, 0x69, 0x67, 0x68, 0x74, 0x22, 0x26, 0x0a, 0x08, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x0c, 0x0a, 0x01, 0x78, 0x18, 0x01, 0x20, 0x01, 0x28, 0x03, 0x52, 0x01, 0x78, 0x12, 0x0c, 0x0a, 0x01, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x52, 0x01, 0x79, 0x22, 0x56, 0x0a, 0x04, 0x54, 0x72, 0x65, 0x65, 0x12, 0x24, 0x0a, 0x06, 0x70, 0x61, 0x72, 0x65, 0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x0c, 0x2e, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x57, 0x69, 0x64, 0x67, 0x65, 0x74, 0x52, 0x06, 0x70, 0x61, 0x72, 0x65, 0x6e, 0x74, 0x12, 0x28, 0x0a, 0x08, 0x63, 0x68, 0x69, 0x6c, 0x64, 0x72, 0x65, 0x6e, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x0c, 0x2e, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x57, 0x69, 0x64, 0x67, 0x65, 0x74, 0x52, 0x08, 0x63, 0x68, 0x69, 0x6c, 0x64, 0x72, 0x65, 0x6e, 0x22, 0x8e, 0x01, 0x0a, 0x06, 0x57, 0x69, 0x64, 0x67, 0x65, 0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x03, 0x52, 0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x1e, 0x0a, 0x04, 0x73, 0x69, 0x7a, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x0a, 0x2e, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x53, 0x69, 0x7a, 0x65, 0x52, 0x04, 0x73, 0x69, 0x7a, 0x65, 0x12, 0x2a, 0x0a, 0x08, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x0e, 0x2e, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x08, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x14, 0x0a, 0x05, 0x63, 0x6f, 0x6c, 0x6f, 0x72, 0x18, 0x05, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x63, 0x6f, 0x6c, 0x6f, 0x72, 0x22, 0x5f, 0x0a, 0x07, 0x57, 0x69, 0x64, 0x67, 0x65, 0x74, 0x73, 0x12, 0x12, 0x0a, 0x04, 0x75, 0x75, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x75, 0x75, 0x69, 0x64, 0x12, 0x18, 0x0a, 0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x26, 0x0a, 0x07, 0x57, 0x69, 0x64, 0x67, 0x65, 0x74, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x0c, 0x2e, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x57, 0x69, 0x64, 0x67, 0x65, 0x74, 0x52, 0x07, 0x57, 0x69, 0x64, 0x67, 0x65, 0x74, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33, } var ( file_widget_proto_rawDescOnce sync.Once file_widget_proto_rawDescData = file_widget_proto_rawDesc ) func file_widget_proto_rawDescGZIP() []byte { file_widget_proto_rawDescOnce.Do(func() { file_widget_proto_rawDescData = protoimpl.X.CompressGZIP(file_widget_proto_rawDescData) }) return file_widget_proto_rawDescData } var file_widget_proto_msgTypes = make([]protoimpl.MessageInfo, 5) var file_widget_proto_goTypes = []any{ (*Size)(nil), // 0: main.Size (*Location)(nil), // 1: main.Location (*Tree)(nil), // 2: main.Tree (*Widget)(nil), // 3: main.Widget (*Widgets)(nil), // 4: main.Widgets } var file_widget_proto_depIdxs = []int32{ 3, // 0: main.Tree.parent:type_name -> main.Widget 3, // 1: main.Tree.children:type_name -> main.Widget 0, // 2: main.Widget.size:type_name -> main.Size 1, // 3: main.Widget.location:type_name -> main.Location 3, // 4: main.Widgets.Widgets:type_name -> main.Widget 5, // [5:5] is the sub-list for method output_type 5, // [5:5] is the sub-list for method input_type 5, // [5:5] is the sub-list for extension type_name 5, // [5:5] is the sub-list for extension extendee 0, // [0:5] is the sub-list for field type_name } func init() { file_widget_proto_init() } func file_widget_proto_init() { if File_widget_proto != nil { return } type x struct{} out := protoimpl.TypeBuilder{ File: protoimpl.DescBuilder{ GoPackagePath: reflect.TypeOf(x{}).PkgPath(), RawDescriptor: file_widget_proto_rawDesc, NumEnums: 0, NumMessages: 5, NumExtensions: 0, NumServices: 0, }, GoTypes: file_widget_proto_goTypes, DependencyIndexes: file_widget_proto_depIdxs, MessageInfos: file_widget_proto_msgTypes, }.Build() File_widget_proto = out.File file_widget_proto_rawDesc = nil file_widget_proto_goTypes = nil file_widget_proto_depIdxs = nil } // `autogen:widget.sort.pb.go` // Code generated by go.wit.com/apps/autogenpb DO NOT EDIT. // This file was autogenerated with autogenpb v0.0.50 2025-02-07_10:21:13_UTC // go install go.wit.com/apps/autogenpb@latest // // define which structs (messages) you want to use in the .proto file // Then sort.pb.go and marshal.pb.go files are autogenerated // // autogenpb uses it and has an example .proto file with instructions // package tree import ( "fmt" "sync" ) // a simple global lock var widgetMu sync.RWMutex func (x *Widgets) fixUuid() { if x == nil { return } if x.Uuid == "0331fcd7-3c8c-43e4-be1b-77db6a6bc58c" { return } x.Uuid = "0331fcd7-3c8c-43e4-be1b-77db6a6bc58c" x.Version = "v1 go.wit.com/toolkits/tree" } func NewWidgets() *Widgets { x := new(Widgets) x.Uuid = "0331fcd7-3c8c-43e4-be1b-77db6a6bc58c" x.Version = "v1 go.wit.com/toolkits/tree" return x } // START SORT // DEFINE THE Widgets ITERATOR. // itializes a new iterator. func newWidgetsIterator(things []*Widgets) *WidgetsIterator { return &WidgetsIterator{things: things} } type WidgetsIterator struct { sync.RWMutex // this isn't getting used properly yet? things []*Widgets index int } func (it *WidgetsIterator) Scan() bool { if it.index >= len(it.things) { return false } it.index++ return true } // Next() returns the next thing in the array func (it *WidgetsIterator) Next() *Widgets { if it.things[it.index-1] == nil { fmt.Println("Next() error in WidgetsIterator", it.index) } return it.things[it.index-1] } // END DEFINE THE ITERATOR // DEFINE THE Widget ITERATOR. // itializes a new iterator. func newWidgetIterator(things []*Widget) *WidgetIterator { return &WidgetIterator{things: things} } type WidgetIterator struct { sync.RWMutex // this isn't getting used properly yet? things []*Widget index int } func (it *WidgetIterator) Scan() bool { if it.index >= len(it.things) { return false } it.index++ return true } // Next() returns the next thing in the array func (it *WidgetIterator) Next() *Widget { if it.things[it.index-1] == nil { fmt.Println("Next() error in WidgetIterator", it.index) } return it.things[it.index-1] } // END DEFINE THE ITERATOR // DEFINE THE Size ITERATOR. // itializes a new iterator. func newSizeIterator(things []*Size) *SizeIterator { return &SizeIterator{things: things} } type SizeIterator struct { sync.RWMutex // this isn't getting used properly yet? things []*Size index int } func (it *SizeIterator) Scan() bool { if it.index >= len(it.things) { return false } it.index++ return true } // Next() returns the next thing in the array func (it *SizeIterator) Next() *Size { if it.things[it.index-1] == nil { fmt.Println("Next() error in SizeIterator", it.index) } return it.things[it.index-1] } // END DEFINE THE ITERATOR // DEFINE THE Location ITERATOR. // itializes a new iterator. func newLocationIterator(things []*Location) *LocationIterator { return &LocationIterator{things: things} } type LocationIterator struct { sync.RWMutex // this isn't getting used properly yet? things []*Location index int } func (it *LocationIterator) Scan() bool { if it.index >= len(it.things) { return false } it.index++ return true } // Next() returns the next thing in the array func (it *LocationIterator) Next() *Location { if it.things[it.index-1] == nil { fmt.Println("Next() error in LocationIterator", it.index) } return it.things[it.index-1] } // END DEFINE THE ITERATOR // DEFINE THE Tree ITERATOR. // itializes a new iterator. func newTreeIterator(things []*Tree) *TreeIterator { return &TreeIterator{things: things} } type TreeIterator struct { sync.RWMutex // this isn't getting used properly yet? things []*Tree index int } func (it *TreeIterator) Scan() bool { if it.index >= len(it.things) { return false } it.index++ return true } // Next() returns the next thing in the array func (it *TreeIterator) Next() *Tree { if it.things[it.index-1] == nil { fmt.Println("Next() error in TreeIterator", it.index) } return it.things[it.index-1] } // END DEFINE THE ITERATOR // safely returns a slice of pointers to the FRUIT protobufs func (x *Widgets) allWidgets() []*Widget { x.RLock() defer x.RUnlock() // Create a new slice to hold pointers to each FRUIT var tmp []*Widget tmp = make([]*Widget, len(x.Widgets)) for i, p := range x.Widgets { tmp[i] = p // Copy pointers for safe iteration } return tmp } // safely returns a slice of pointers to the FRUIT protobufs func (x *Tree) allChildren() []*Widget { x.RLock() defer x.RUnlock() // Create a new slice to hold pointers to each FRUIT var tmp []*Widget tmp = make([]*Widget, len(x.Children)) for i, p := range x.Children { tmp[i] = p // Copy pointers for safe iteration } return tmp } // safely returns a slice of pointers to the Widget protobufs func (x *Widgets) selectAllWidgets() []*Widget { x.RLock() defer x.RUnlock() // Create a new slice to hold pointers to each Widget var tmp []*Widget tmp = make([]*Widget, len(x.Widgets)) for i, p := range x.Widgets { tmp[i] = p // Copy pointers for safe iteration } return tmp } // safely returns a slice of pointers to the Widget protobufs func (x *Tree) selectAllChildren() []*Widget { x.RLock() defer x.RUnlock() // Create a new slice to hold pointers to each Widget var tmp []*Widget tmp = make([]*Widget, len(x.Children)) for i, p := range x.Children { tmp[i] = p // Copy pointers for safe iteration } return tmp } // END SORT func (x *Widgets) Len() int { x.RLock() defer x.RUnlock() return len(x.Widgets) } // just a simple Append() shortcut (but still uses the mutex lock) func (x *Widgets) Append(y *Widget) { x.Lock() defer x.Unlock() x.Widgets = append(x.Widgets, y) } func (x *Widgets) All() *WidgetIterator { WidgetPointers := x.selectAllWidgets() iterator := newWidgetIterator(WidgetPointers) return iterator } func (x *Widgets) Delete(y *Widget) bool { x.Lock() defer x.Unlock() for i, _ := range x.Widgets { if x.Widgets[i] == y { x.Widgets[i] = x.Widgets[len(x.Widgets)-1] x.Widgets = x.Widgets[:len(x.Widgets)-1] return true } } return false } // `autogen:`