From b01d8f8f7446f27df31b761cf7e1d1f7e60273fe Mon Sep 17 00:00:00 2001
From: FluorineDog <fluorinedog@gmail.com>
Date: Fri, 27 Nov 2020 17:49:04 +0800
Subject: [PATCH] fix virtual (#4304)

Signed-off-by: fluorinedog <fluorinedog@gmail.com>
---
 core/src/cache/DataObj.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/src/cache/DataObj.h b/core/src/cache/DataObj.h
index 3aea7dea24..a4d65c44ba 100644
--- a/core/src/cache/DataObj.h
+++ b/core/src/cache/DataObj.h
@@ -20,6 +20,7 @@ class DataObj {
  public:
     virtual int64_t
     Size() = 0;
+    virtual ~DataObj() = default;
 };
 
 using DataObjPtr = std::shared_ptr<DataObj>;