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core/state/snapshot: fix journal nil deserialziation

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This commit is contained in:
Péter Szilágyi 2020-04-29 18:00:29 +03:00
parent 26d271dfbb
commit 4b6f6ffe23
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1 changed files with 10 additions and 2 deletions
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12
core/state/snapshot/journal.go
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@ -158,7 +158,11 @@ func loadDiffLayer(parent snapshot, r *rlp.Stream) (snapshot, error) {
}
accountData := make(map[common.Hash][]byte)
for _, entry := range accounts {
accountData[entry.Hash] = entry.Blob
if len(entry.Blob) > 0 { // RLP loses nil-ness, but `[]byte{}` is not a valid item, so reinterpret that
accountData[entry.Hash] = entry.Blob
} else {
accountData[entry.Hash] = nil
}
}
var storage []journalStorage
if err := r.Decode(&storage); err != nil {
@ -168,7 +172,11 @@ func loadDiffLayer(parent snapshot, r *rlp.Stream) (snapshot, error) {
for _, entry := range storage {
slots := make(map[common.Hash][]byte)
for i, key := range entry.Keys {
slots[key] = entry.Vals[i]
if len(entry.Vals[i]) > 0 { // RLP loses nil-ness, but `[]byte{}` is not a valid item, so reinterpret that
slots[key] = entry.Vals[i]
} else {
slots[key] = nil
}
}
storageData[entry.Hash] = slots
}