cerc-io/go-ethereum
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Factor out a common trie iterator method in builder

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This commit is contained in:
Elizabeth Engelman 2019-01-24 12:01:38 -06:00
parent 565c9cc6c2
commit 576e36fc9c
1 changed files with 10 additions and 20 deletions
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30
statediff/builder/builder.go
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@ -212,24 +212,7 @@ func (sdb *builder) buildStorageDiffsEventual(sr common.Hash) (map[string]DiffSt
return nil, err
}
it := sTrie.NodeIterator(make([]byte, 0))
storageDiffs := make(map[string]DiffStorage)
for {
log.Debug("Iterating over state at path ", "path", pathToStr(it))
if it.Leaf() {
log.Debug("Found leaf in storage", "path", pathToStr(it))
path := pathToStr(it)
storageKey:= hexutil.Encode(it.LeafKey())
storageValue := hexutil.Encode(it.LeafBlob())
storageDiffs[path] = DiffStorage{
Key: &storageKey,
Value: &storageValue,
}
}
cont := it.Next(true)
if !cont {
break
}
}
storageDiffs := buildStorageDiffsFromTrie(it)
return storageDiffs, nil
}
@ -247,8 +230,15 @@ func (sdb *builder) buildStorageDiffsIncremental(oldSR common.Hash, newSR common
oldIt := oldTrie.NodeIterator(make([]byte, 0))
newIt := newTrie.NodeIterator(make([]byte, 0))
it, _ := trie.NewDifferenceIterator(oldIt, newIt)
storageDiffs := buildStorageDiffsFromTrie(it)
return storageDiffs, nil
}
func buildStorageDiffsFromTrie(it trie.NodeIterator) map[string]DiffStorage {
storageDiffs := make(map[string]DiffStorage)
for {
log.Debug("Iterating over state at path ", "path", pathToStr(it))
if it.Leaf() {
log.Debug("Found leaf in storage", "path", pathToStr(it))
path := pathToStr(it)
@ -265,7 +255,8 @@ func (sdb *builder) buildStorageDiffsIncremental(oldSR common.Hash, newSR common
break
}
}
return storageDiffs, nil
return storageDiffs
}
func (sdb *builder) addressByPath(path []byte) (*common.Address, error) {
@ -278,5 +269,4 @@ func (sdb *builder) addressByPath(path []byte) (*common.Address, error) {
log.Debug("Address found", "Address", addr)
return &addr, nil
}
}