.

wcfs/internal/xbtree/δbtail.go

@@ -236,8 +236,6 @@ func (orig *ΔTtail) Clone() *ΔTtail {
 func (δBtail *ΔBtail) Head() zodb.Tid { return δBtail.δZtail.Head() }
 func (δBtail *ΔBtail) Tail() zodb.Tid { return δBtail.δZtail.Tail() }
 
-// XXX SliceByRev?
-
 // Track adds tree path to tracked set.
 //
 // path[0] signifies tree root.
@@ -253,6 +251,7 @@ func (δBtail *ΔBtail) Tail() zodb.Tid { return δBtail.δZtail.Tail() }
 //
 // XXX catch cycles on add?
 // XXX no need to pass in key?  (-> all keys, covered by leaf keyrange, will be added to tracking set of keys)
+// XXX no need to return error?
 func (δBtail *ΔBtail) Track(key Key, nodePath []Node) error { // XXX Tree|Bucket; path[0] = root
 
 	path := nodePathToPath(nodePath)

wcfs/internal/zdata/zblk.go

@@ -468,7 +468,7 @@ func (bf *ZBigFile) LoadBlk(ctx context.Context, blk int64) (_ []byte, treePath
 
 // Size returns whole file size.
 //
-// it also returns BTree path scaned to obtain the size.
+// it also returns BTree path scanned to obtain the size.
 func (bf *ZBigFile) Size(ctx context.Context) (_ int64, treePath []btree.LONode, err error) {
 	defer xerr.Contextf(&err, "bigfile %s: size", bf.POid())
 

wcfs/internal/zdata/zblk_test.go

@@ -35,8 +35,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-const K = 1024
-
 // TestZBlk verifies that ZBlk* and ZBigFile saved by Python can be read correctly by Go.
 // TODO also test with data saved by Python3.
 func TestZBlk(t *testing.T) {

wcfs/internal/zdata/δftail.go

@@ -80,6 +80,8 @@ type ΔFtail struct {
 	δBtail  *xbtree.ΔBtail
 	fileIdx map[zodb.Oid]SetZBigFile // tree-root -> {} ZBigFile as of @head
 
+// XXX kill
+///*
 	// XXX don't need vδF - everything is reconstructed at runtime from .δBtail.vδT
 	//     this way we also don't need to keep up updating vδF from vδT on its rebuild during.
 	// data with δF changes. Actual for part of tracked set that was taken
@@ -89,6 +91,7 @@ type ΔFtail struct {
 	// tracked ZBlk that are not yet taken into account in current vδF.
 	// grows on new track requests; flushes on queries and update.
 	trackNew map[*ZBigFile]map[zodb.Oid]*zblkInΔFtail // {} file -> {} oid -> zblk
+//*/
 }
 
 // ΔF represents a change in files space.
@@ -353,10 +356,10 @@ func (δFtail *ΔFtail) ForgetPast(revCut zodb.Tid) {
 }
 
 // XXX don't need
-func (δFtail *ΔFtail) SliceByRev(lo, hi zodb.Tid) /*readonly*/ []ΔF {
-	xtail.AssertSlice(δFtail, lo, hi)
-	panic("TODO")
-}
+//func (δFtail *ΔFtail) SliceByRev(lo, hi zodb.Tid) /*readonly*/ []ΔF {
+//	xtail.AssertSlice(δFtail, lo, hi)
+//	panic("TODO")
+//}
 
 // SliceByFileRev returns history of file changes in (lo, hi] range.
 //