evm: conditional hook snapshot (#520)

2021-09-02 17:47:39 +00:00
parent 770ce367ac
commit 5fac39db38
1 changed files with 5 additions and 2 deletions
@@ -175,8 +175,11 @@ func (k *Keeper) ApplyTransaction(tx *ethtypes.Transaction) (*types.MsgEthereumT
 		panic("context stack shouldn't be dirty before apply message")
 	}

-	// Contains the tx processing and post processing in same scope
-	revision := k.Snapshot()
+	var revision int
+	if k.hooks != nil {
+		// snapshot to contain the tx processing and post processing in same scope
+		revision = k.Snapshot()
+	}

 	// pass false to execute in real mode, which do actual gas refunding
 	res, err := k.ApplyMessage(evm, msg, ethCfg, false)