fix possible nil pointer panic (#206)

Co-authored-by: lmittmann <[email protected]>
lmittmann · Jan 9, 2025 · 788439c · 788439c
1 parent 9e1e566
commit 788439c
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/w3vm/fetcher.go b/w3vm/fetcher.go
@@ -334,7 +334,9 @@ func (f *rpcFetcher) storeTestdataState(tb testing.TB, chainID uint64) error {
 			continue
 		}
 
-		if s.Accounts[storageKey.addr].Storage == nil {
+		if acc, ok := s.Accounts[storageKey.addr]; !ok {
+			s.Accounts[storageKey.addr] = &account{Storage: map[w3hexutil.Hash]w3hexutil.Hash{}}
+		} else if acc.Storage == nil {
 			s.Accounts[storageKey.addr].Storage = make(map[w3hexutil.Hash]w3hexutil.Hash)
 		}
 		s.Accounts[storageKey.addr].Storage[w3hexutil.Hash(storageKey.slot)] = w3hexutil.Hash(storageVal)