.

wcfs/δbtail.go

@@ -332,6 +332,7 @@ func (δBtail *ΔBtail) treediff(ctx context.Context, root zodb.Oid, δZT SetOid
 
 	// XXX δZT -> δZT* (all changed nodes are connected)
 	// e.g. t₀->t₁->b₂   δZ={t₀ b₂}  ->  δZ*=δZ+{t₁}
+	δZTC := δZT // FIXME stub
 
 	δT = map[Key]Value{}
 
@@ -359,7 +360,7 @@ func (δBtail *ΔBtail) treediff(ctx context.Context, root zodb.Oid, δZT SetOid
 		case *Tree:
 			fmt.Printf("  T%s\n", a.POid())
 			b := xb.(*Tree)   // must not fail
-			δtop, err = diffT(ctx, a, b, δZT*)
+			δtop, err = diffT(ctx, a, b, δZTC)
 
 		case *Bucket:
 			fmt.Printf("  B%s\n", a.POid())
@@ -435,6 +436,9 @@ func diffT(ctx context.Context, a, b *Tree, δZTC SetOid) (δ map[Key]Value, err
 	for child := range mod { // XXX sorted ?
 
 	}
+
+
+	return δ, nil
 }
 
 // diffB computes difference in between two revisions of a bucket.