Commit b2b0b6c1 authored by Kirill Smelkov's avatar Kirill Smelkov

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parent 5a1bdf50
...@@ -396,7 +396,8 @@ func treediff(ctx context.Context, root zodb.Oid, δtops setOid, δZTC setOid, t ...@@ -396,7 +396,8 @@ func treediff(ctx context.Context, root zodb.Oid, δtops setOid, δZTC setOid, t
// δtkeycov represents how δtrack grows (always grows) tracking set key coverage. // δtkeycov represents how δtrack grows (always grows) tracking set key coverage.
func diffX(ctx context.Context, a, b Node, δZTC setOid, trackSet blib.PPTreeSubSet) (δ map[Key]ΔValue, δtrack *blib.ΔPPTreeSubSet, δtkeycov *blib.RangedKeySet, err error) { func diffX(ctx context.Context, a, b Node, δZTC setOid, trackSet blib.PPTreeSubSet) (δ map[Key]ΔValue, δtrack *blib.ΔPPTreeSubSet, δtkeycov *blib.RangedKeySet, err error) {
if a==nil && b==nil { if a==nil && b==nil {
panic("BUG: both a & b == nil") // XXX -> not a bug e.g. for `ø ø T` sequence? // DEL..DEL -> ø diff
return map[Key]ΔValue{}, blib.NewΔPPTreeSubSet(), &blib.RangedKeySet{}, nil
} }
var aT, bT *Tree var aT, bT *Tree
......
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