From 1eb2d0ae5059604be9d878cab370e71eeba288ea Mon Sep 17 00:00:00 2001
From: zgfzgf <1901989065@qq.com>
Date: Tue, 13 Oct 2020 22:34:07 +0800
Subject: [PATCH] optimize map use struct{}

---
 chain/stmgr/stmgr.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chain/stmgr/stmgr.go b/chain/stmgr/stmgr.go
index b470cfe83..e3bd5f89d 100644
--- a/chain/stmgr/stmgr.go
+++ b/chain/stmgr/stmgr.go
@@ -313,7 +313,7 @@ func (sm *StateManager) ApplyBlocks(ctx context.Context, parentEpoch abi.ChainEp
 	}
 
 	var receipts []cbg.CBORMarshaler
-	processedMsgs := map[cid.Cid]bool{}
+	processedMsgs := make(map[cid.Cid]struct{})
 	for _, b := range bms {
 		penalty := types.NewInt(0)
 		gasReward := big.Zero()
@@ -337,7 +337,7 @@ func (sm *StateManager) ApplyBlocks(ctx context.Context, parentEpoch abi.ChainEp
 					return cid.Undef, cid.Undef, err
 				}
 			}
-			processedMsgs[m.Cid()] = true
+			processedMsgs[m.Cid()] = struct{}{}
 		}
 
 		params, err := actors.SerializeParams(&reward.AwardBlockRewardParams{