From 053c5257def246a91429aa453e37c4ea7db1fa36 Mon Sep 17 00:00:00 2001
From: mingda <leimingda@pku.edu.cn>
Date: Sat, 12 Dec 2020 15:51:09 +0800
Subject: [PATCH] add back indexed

---
 contracts/DODOPrivatePool/impl/DPPTrader.sol     | 6 +++---
 contracts/DODOVendingMachine/impl/DVMFunding.sol | 9 +++++++--
 contracts/DODOVendingMachine/impl/DVMTrader.sol  | 6 +++---
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/contracts/DODOPrivatePool/impl/DPPTrader.sol b/contracts/DODOPrivatePool/impl/DPPTrader.sol
index deab4e5..1cfe139 100644
--- a/contracts/DODOPrivatePool/impl/DPPTrader.sol
+++ b/contracts/DODOPrivatePool/impl/DPPTrader.sol
@@ -20,11 +20,11 @@ contract DPPTrader is DPPVault {
     // ============ Events ============
 
     event DODOSwap(
-        address fromToken,
-        address toToken,
+        address indexed fromToken,
+        address indexed toToken,
         uint256 fromAmount,
         uint256 toAmount,
-        address trader
+        address indexed trader
     );
 
     // ============ Modifiers ============
diff --git a/contracts/DODOVendingMachine/impl/DVMFunding.sol b/contracts/DODOVendingMachine/impl/DVMFunding.sol
index 03819c3..0326a92 100644
--- a/contracts/DODOVendingMachine/impl/DVMFunding.sol
+++ b/contracts/DODOVendingMachine/impl/DVMFunding.sol
@@ -15,9 +15,14 @@ import {IDODOCallee} from "../../intf/IDODOCallee.sol";
 contract DVMFunding is DVMVault {
     // ============ Events ============
 
-    event BuyShares(address to, uint256 increaseShares, uint256 totalShares);
+    event BuyShares(address indexed to, uint256 increaseShares, uint256 totalShares);
 
-    event SellShares(address payer, address to, uint256 decreaseShares, uint256 totalShares);
+    event SellShares(
+        address indexed payer,
+        address indexed to,
+        uint256 decreaseShares,
+        uint256 totalShares
+    );
 
     // ============ Buy & Sell Shares ============
 
diff --git a/contracts/DODOVendingMachine/impl/DVMTrader.sol b/contracts/DODOVendingMachine/impl/DVMTrader.sol
index e5f6e2d..8322416 100644
--- a/contracts/DODOVendingMachine/impl/DVMTrader.sol
+++ b/contracts/DODOVendingMachine/impl/DVMTrader.sol
@@ -21,11 +21,11 @@ contract DVMTrader is DVMVault {
     // ============ Events ============
 
     event DODOSwap(
-        address fromToken,
-        address toToken,
+        address indexed fromToken,
+        address indexed toToken,
         uint256 fromAmount,
         uint256 toAmount,
-        address trader
+        address indexed trader
     );
 
     // ============ Modifiers ============