[#19] transformer: Simplify `AccessIdentifiers`

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

object/transformer/fmt.go

@@ -109,8 +109,9 @@ func (f *formatter) Close() (*AccessIdentifiers, error) {
 
 	id, _ := f.obj.ID()
 
-	return new(AccessIdentifiers).
-		WithSelfID(id).
-		WithParentID(parID).
-		WithParent(parHdr), nil
+	return &AccessIdentifiers{
+		ParentID:     parID,
+		SelfID:       id,
+		ParentHeader: parHdr,
+	}, nil
 }

object/transformer/transformer.go

@@ -200,11 +200,11 @@ func (s *payloadSizeLimiter) release(finalize bool) (*AccessIdentifiers, error)
 	}
 
 	// save identifier of the released object
-	s.previous = append(s.previous, ids.SelfID())
+	s.previous = append(s.previous, ids.SelfID)
 
 	if withParent {
 		// generate and release linking object
-		s.initializeLinking(ids.Parent())
+		s.initializeLinking(ids.ParentHeader)
 		s.initializeCurrent()
 
 		if _, err := s.release(false); err != nil {

object/transformer/transformer_test.go

@@ -56,7 +56,7 @@ func TestTransformer(t *testing.T) {
 		case 3:
 			parID, ok := tt.objects[i].ParentID()
 			require.True(t, ok)
-			require.Equal(t, ids.ParentID(), &parID)
+			require.Equal(t, ids.ParentID, &parID)
 		}
 	}
 	require.Equal(t, expectedPayload, actualPayload)

object/transformer/types.go

@@ -11,11 +11,9 @@ import (
 // that are returned after writing the object.
 // Consists of the ID of the stored object and the ID of the parent object.
 type AccessIdentifiers struct {
-	par *oid.ID
-
-	self oid.ID
-
-	parHdr *object.Object
+	ParentID     *oid.ID
+	SelfID       oid.ID
+	ParentHeader *object.Object
 }
 
 // ObjectTarget is an interface of the object writer.
@@ -50,62 +48,3 @@ type ObjectTarget interface {
 
 // TargetInitializer represents ObjectTarget constructor.
 type TargetInitializer func() ObjectTarget
-
-// SelfID returns identifier of the written object.
-func (a AccessIdentifiers) SelfID() oid.ID {
-	return a.self
-}
-
-// WithSelfID returns AccessIdentifiers with passed self identifier.
-func (a *AccessIdentifiers) WithSelfID(v oid.ID) *AccessIdentifiers {
-	res := a
-	if res == nil {
-		res = new(AccessIdentifiers)
-	}
-
-	res.self = v
-
-	return res
-}
-
-// ParentID return identifier of the parent of the written object.
-func (a *AccessIdentifiers) ParentID() *oid.ID {
-	if a != nil {
-		return a.par
-	}
-
-	return nil
-}
-
-// WithParentID returns AccessIdentifiers with passed parent identifier.
-func (a *AccessIdentifiers) WithParentID(v *oid.ID) *AccessIdentifiers {
-	res := a
-	if res == nil {
-		res = new(AccessIdentifiers)
-	}
-
-	res.par = v
-
-	return res
-}
-
-// Parent return identifier of the parent of the written object.
-func (a *AccessIdentifiers) Parent() *object.Object {
-	if a != nil {
-		return a.parHdr
-	}
-
-	return nil
-}
-
-// WithParent returns AccessIdentifiers with passed parent identifier.
-func (a *AccessIdentifiers) WithParent(v *object.Object) *AccessIdentifiers {
-	res := a
-	if res == nil {
-		res = new(AccessIdentifiers)
-	}
-
-	res.parHdr = v
-
-	return res
-}