sdb skip empty value

Author: noel2004

bus-mapping/src/circuit_input_builder/l2.rs

@@ -32,15 +32,18 @@ impl From<&ZktrieState> for StateDB {
         let mut sdb = StateDB::new();
 
         for (addr, acc) in mpt_state.state() {
-            sdb.set_account(addr, acc.into())
+            if !acc.keccak_code_hash.is_zero() {
+                sdb.set_account(addr, acc.into())
+            }
         }
 
         for (storage_key, data) in mpt_state.storage() {
-            //TODO: add an warning on non-existed account?
-            let (_, acc) = sdb.get_account_mut(&storage_key.0);
-            acc.storage.insert(storage_key.1, *data.as_ref());
+            if !data.as_ref().is_zero() {
+                //TODO: add an warning on non-existed account?
+                let (_, acc) = sdb.get_account_mut(&storage_key.0);
+                acc.storage.insert(storage_key.1, *data.as_ref());
+            }
         }
-
         sdb
     }
 }