.

wcfs/internal/xbtree/δbtail.go

@@ -229,8 +229,6 @@ func (btail *ΔTail) Update(δZ *zodb.EventCommit) []ΔTree {
 // entries in .δZtail into account.
 // func (btail *ΔTail) update()
 
-// XXX -> Get(root, key, at) -> (valueOid, rev) ?
-
 // GetAt returns root[key] as of @at database state plus revision that changed it.
 //
 // if revExact=False - rev is upper estimate for the revision.
@@ -274,18 +272,6 @@ func (btail *ΔTail) GetAt(root *Tree, key Key, at zodb.Tid) (value Value, ok bo
 	return
 }
 
-/*
-func (btail *ΔTail) LastRevOf(root *Tree, key Key, at zodb.Tid) (_ zodb.Tid, exact bool) {
-	lastRevOf = btail.lastRevOf[root]
-	rev = lastRevOf[key]
-	while rev > at:
-		rev = scan btail.δBtail ↓ looking for change(key)	# XXX linear scan
-	return rev
-
-	return 0, false // XXX stub (saying take only ZBlk.rev into account)
-}
-*/
-
 func (btail *ΔTail) ForgetPast(revCut zodb.Tid) {
 	btail.ΔZtail.ForgetPast(revCut) // XXX stub
 }