[#376] status: Remove pointer from `Detail` slice

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

object/status.go

@@ -67,7 +67,7 @@ func WriteAccessDeniedDesc(st *status.Status, desc string) {
 		d.SetID(detailAccessDeniedDesc)
 		d.SetValue([]byte(desc))
 
-		st.AppendDetails(&d)
+		st.AppendDetails(d)
 	}
 }
 

status/convert.go

@@ -71,27 +71,21 @@ func (x *Status) FromGRPCMessage(m grpc.Message) error {
 	}
 
 	var (
-		ds   []*Detail
+		ds   []Detail
 		dsV2 = v.GetDetails()
 	)
 
 	if dsV2 != nil {
 		ln := len(dsV2)
 
-		ds = make([]*Detail, 0, ln)
+		ds = make([]Detail, ln)
 
 		for i := 0; i < ln; i++ {
-			var p *Detail
-
 			if dsV2[i] != nil {
-				p = new(Detail)
-
-				if err := p.FromGRPCMessage(dsV2[i]); err != nil {
+				if err := ds[i].FromGRPCMessage(dsV2[i]); err != nil {
 					return err
 				}
 			}
-
-			ds = append(ds, p)
 		}
 	}
 

status/marshal.go

@@ -88,7 +88,7 @@ func (x *Status) StableMarshal(buf []byte) ([]byte, error) {
 	offset += n
 
 	for i := range x.details {
-		n, err = protoutil.NestedStructureMarshal(statusDetailsFNum, buf[offset:], x.details[i])
+		n, err = protoutil.NestedStructureMarshal(statusDetailsFNum, buf[offset:], &x.details[i])
 		if err != nil {
 			return nil, err
 		}
@@ -104,7 +104,7 @@ func (x *Status) StableSize() (size int) {
 	size += protoutil.StringSize(statusMsgFNum, x.msg)
 
 	for i := range x.details {
-		size += protoutil.NestedStructureSize(statusDetailsFNum, x.details[i])
+		size += protoutil.NestedStructureSize(statusDetailsFNum, &x.details[i])
 	}
 
 	return size

status/test/generate.go

@@ -17,13 +17,13 @@ func Detail(empty bool) *status.Detail {
 }
 
 // Details returns several status.Detail messages filled with static random values.
-func Details(empty bool) []*status.Detail {
-	var res []*status.Detail
+func Details(empty bool) []status.Detail {
+	var res []status.Detail
 
 	if !empty {
 		res = append(res,
-			Detail(false),
-			Detail(false),
+			*Detail(false),
+			*Detail(false),
 		)
 	}
 

status/types.go

@@ -53,7 +53,7 @@ type Status struct {
 
 	msg string
 
-	details []*Detail
+	details []Detail
 }
 
 // Code returns code of the Status.
@@ -104,7 +104,7 @@ func (x *Status) NumberOfDetails() int {
 func (x *Status) IterateDetails(f func(*Detail) bool) {
 	if x != nil {
 		for i := range x.details {
-			if f(x.details[i]) {
+			if f(&x.details[i]) {
 				break
 			}
 		}
@@ -119,14 +119,14 @@ func (x *Status) ResetDetails() {
 }
 
 // AppendDetails appends the list of details to the Status.
-func (x *Status) AppendDetails(ds ...*Detail) {
+func (x *Status) AppendDetails(ds ...Detail) {
 	if x != nil {
 		x.details = append(x.details, ds...)
 	}
 }
 
 // SetStatusDetails sets Detail list of the Status.
-func SetStatusDetails(dst *Status, ds []*Detail) {
+func SetStatusDetails(dst *Status, ds []Detail) {
 	dst.ResetDetails()
 	dst.AppendDetails(ds...)
 }