.

wcfs/internal/xbtree/δbtail.go

@@ -124,11 +124,10 @@ type _ΔBroots struct {
 // ΔB represents a change in BTrees space.
 type ΔB struct {
 	Rev     zodb.Tid
-	ΔByRoot map[zodb.Oid]map[Key]ΔValue // {} root -> {}(key, δvalue)	XXX -> ByRoot?
+	ΔByRoot map[zodb.Oid]map[Key]ΔValue // {} root -> {}(key, δvalue)
 }
 
 // ΔTree describes changes to one BTree in one revision.
-// XXX -> ΔT ?
 type ΔTree struct {
 	Rev  zodb.Tid
 	ΔKV  map[Key]ΔValue
@@ -141,7 +140,7 @@ type ΔTree struct {
 // Initial coverage is (at₀, at₀].
 //
 // db will be used by ΔBtail to open database connections to load data from
-// ZODB when needed.   XXX or caller provides zhead/zprev explicitly?
+// ZODB when needed.
 func NewΔBtail(at0 zodb.Tid, db *zodb.DB) *ΔBtail {
 	return &ΔBtail{
 		δZtail:        zodb.NewΔTail(at0),