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trie: fix minor issue

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rjl493456442 2020-04-22 19:10:54 +08:00
parent 14c08d19e3
commit f63c68c245
1 changed files with 3 additions and 2 deletions
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5
trie/proof.go
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@ -166,7 +166,7 @@ func proofToPath(rootHash common.Hash, root node, key []byte, proofDb ethdb.KeyV
switch cld := child.(type) { switch cld := child.(type) {
case nil: case nil:
// The trie doesn't contain the key. // The trie doesn't contain the key.
return nil, fmt.Errorf("the node is not contained in trie") return nil, errors.New("the node is not contained in trie")
case *shortNode: case *shortNode:
key, parent = keyrest, child // Already resolved key, parent = keyrest, child // Already resolved
continue continue
@ -198,7 +198,8 @@ func proofToPath(rootHash common.Hash, root node, key []byte, proofDb ethdb.KeyV
} }
// unsetInternal removes all internal node references(hashnode, embedded node). // unsetInternal removes all internal node references(hashnode, embedded node).
// It should be called after a trie is constructed with two edge proofs. // It should be called after a trie is constructed with two edge proofs. Also
// the given boundary keys must be the one used to construct the edge proofs.
// //
// It's the key step for range proof. All visited nodes should be marked dirty // It's the key step for range proof. All visited nodes should be marked dirty
// since the node content might be modified. Besides it can happen that some // since the node content might be modified. Besides it can happen that some