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fix: stateless PoA stem insertion in TreeFromProof #325

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fix: stateless PoA stem insertion in TreeFromProof #325

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4 changes: 3 additions & 1 deletion hashednode.go
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,8 @@ import (
"fmt"
)

var ErrReadFromHashedNode = errors.New("can not read from a hash node")

type HashedNode struct {
commitment []byte
cachedPoint *Point
Expand All @@ -48,7 +50,7 @@ func (*HashedNode) Delete([]byte, NodeResolverFn) error {
}

func (*HashedNode) Get([]byte, NodeResolverFn) ([]byte, error) {
return nil, errors.New("can not read from a hash node")
return nil, ErrReadFromHashedNode
}

func (n *HashedNode) Commit() *Point {
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3 changes: 3 additions & 0 deletions stateless.go
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Expand Up @@ -340,6 +340,9 @@ func (n *StatelessNode) insertStem(path []byte, stemInfo stemInfo, comms []*Poin
// nothing to do
case extStatusAbsentOther:
// insert poa stem
serialized := comms[0].Bytes()
n.children[path[0]] = &HashedNode{commitment: serialized[:], cachedPoint: comms[0]}
comms = comms[1:]
case extStatusPresent:
// insert stem
newchild := NewStatelessWithCommitment(comms[0])
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