.

wcfs/internal/zdata/δftail.go

@@ -83,10 +83,8 @@ type ΔFtail struct {
 	// ΔFtail merges ΔBtail with history of ZBlk
 	δBtail  *xbtree.ΔBtail
 	fileIdx map[zodb.Oid]setOid   // tree-root -> {} ZBigFile<oid>  as of @head  XXX -> root2file ?
-//	rootIdx map[zodb.Oid]zodb.Oid // file -> tree-root              as of @head
 	byFile  map[zodb.Oid]*_ΔFileTail // file -> δf tail	XXX
 
-//	trackSetZFile setOid                  // set of tracked ZBigFiles	as of @head
 	trackSetZBlk  map[zodb.Oid]*zblkTrack // zblk -> {} root -> {}blk	as of @head
 }
 
@@ -135,8 +133,6 @@ func NewΔFtail(at0 zodb.Tid, db *zodb.DB) *ΔFtail {
 	return &ΔFtail{
 		δBtail:        xbtree.NewΔBtail(at0, db),
 		fileIdx:       map[zodb.Oid]setOid{},
-//		rootIdx:       map[zodb.Oid]zodb.Oid{},
-//		trackSetZFile: setOid{},
 		byFile:        map[zodb.Oid]*_ΔFileTail{},
 		trackSetZBlk:  map[zodb.Oid]*zblkTrack{},
 	}
@@ -191,8 +187,6 @@ func (δFtail *ΔFtail) Track(file *ZBigFile, blk int64, path []btree.LONode, zb
 	}
 
 
-//	δFtail.trackSetZFile.Add(foid)
-
 	// associate zblk with file, if it was not hole
 	if zblk != nil {
 		zoid := zblk.POid()
@@ -362,7 +356,6 @@ func (δFtail *ΔFtail) Update(δZ *zodb.EventCommit) (_ ΔF, err error) {
 		//fmt.Printf("δZBigFile: %v\n", δ)
 
 		// XXX update .fileIdx
-		// XXX update .rootIdx
 		// XXX update .trackSetZBlk ?
 	}
 
@@ -472,7 +465,7 @@ func (δFtail *ΔFtail) SliceByFileRev(zfile *ZBigFile, lo, hi zodb.Tid) /*reado
 
 	// state of Zinblk as we are scanning ←
 	// initially corresponds to @head = vδT[-1]
-	Zinblk := map[zodb.Oid]setI64{} // zblk -> which #blk refer to it
+	Zinblk := map[zodb.Oid]setI64{} // zblk -> which #blk refers to it
 	var ZinblkAt zodb.Tid           // Zinblk covers [ZinblkAt,<next δT>)
 	for zblk, zt := range δFtail.trackSetZBlk {
 		inblk, ok := zt.inroot[root]