.

wcfs/internal/zdata/δftail.go

@@ -600,84 +600,6 @@ 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 refers to it
-	var ZinblkAt zodb.Tid           // Zinblk covers [ZinblkAt,<next δT>)
-	for zblk, zt := range δFtail.trackSetZBlk {
-		inblk, ok := zt.inroot[root]
-		if ok {
-			Zinblk[zblk] = inblk.Clone()
-		}
-	}
-	it := len(vδT) - 1
-	if it >= 0 {
-		ZinblkAt = vδT[it].Rev
-	} else {
-		ZinblkAt = lo
-	}
-
-	for (iz >= 0 || it >= 0) {
-		// δZ that is covered by current Zinblk
-		// -> update δf
-		if iz >= 0 {
-			δZ := vδZ[iz]
-			if ZinblkAt <= δZ.Rev {
-				//fmt.Printf("δZ @%s\n", δZ.Rev)
-				for _, oid := range δZ.Changev {
-					inblk, ok := Zinblk[oid]
-					if ok && len(inblk) != 0 {
-						δf := vδfTail(δZ.Rev)
-						δf.Blocks.Update(inblk)
-					}
-				}
-				iz--
-				continue
-			}
-		}
-
-		// δT -> adjust Zinblk + update δf
-		if it >= 0 {
-			δT := vδT[it]
-			//fmt.Printf("δT @%s\n", δT.Rev)
-			for blk, δzblk := range δT.ΔKV {
-				// apply in reverse as we go ←
-				if δzblk.New != xbtree.VDEL {
-					inblk, ok := Zinblk[δzblk.New]
-					if ok {
-						inblk.Del(blk)
-					}
-				}
-				if δzblk.Old != xbtree.VDEL {
-					inblk, ok := Zinblk[δzblk.Old]
-					if !ok {
-						inblk = setI64{}
-						Zinblk[δzblk.Old] = inblk
-					}
-					inblk.Add(blk)
-				}
-
-				if δT.Rev <= hi {
-					δf := vδfTail(δT.Rev)
-					δf.Blocks.Add(blk)
-					δf.Size = true // see Update
-				}
-			}
-
-			it--
-			if it >= 0 {
-				ZinblkAt = vδT[it].Rev
-			} else {
-				ZinblkAt = lo
-			}
-		}
-	}
-*/
-
-
 	// vδf was built in reverse order
 	// invert the order before returning
 	for i,j := 0, len(vδf)-1; i<j; i,j = i+1,j-1 {