From 9606182f78192bc644d63f199435ab2296e3ae11 Mon Sep 17 00:00:00 2001
From: Sherman Ye <sherman.ye@vesoft.com>
Date: Thu, 23 Dec 2021 15:18:18 +0800
Subject: [PATCH] Try to fix "uninitialized" error

---
 .github/workflows/pull_request.yml | 1 -
 src/common/base/StatusOr.h         | 6 +++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 018bbcfb1f1..08bfd000fbc 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -125,7 +125,6 @@ jobs:
           esac
       - name: Make
         run: |
-          ccache -C
           ccache -z
           cmake --build build/ -j $(nproc)
           ccache -s
diff --git a/src/common/base/StatusOr.h b/src/common/base/StatusOr.h
index 05e1721e927..89e702be361 100644
--- a/src/common/base/StatusOr.h
+++ b/src/common/base/StatusOr.h
@@ -290,16 +290,19 @@ class StatusOr final {
 
   void resetValue() {
     destructValue();
+    new (&variant_) Variant();
     state_ = kVoid;
   }
 
   void resetStatus() {
     destructStatus();
+    new (&variant_) Variant();
     state_ = kVoid;
   }
 
   void destruct() {
     if (isVoid()) {
+      destructStatus();
       return;
     }
     if (hasValue()) {
@@ -311,13 +314,14 @@ class StatusOr final {
 
   void reset() {
     destruct();
+    new (&variant_) Variant();
     state_ = kVoid;
   }
 
  private:
   // Variant type to hold a `Status', or a `T', or nothing
   union Variant {
-    Variant() {}
+    Variant() : status_(Status()) {}
     Variant(const Status &status) : status_(status) {}
     Variant(Status &&status) : status_(std::move(status)) {}
     template <typename U, typename = std::enable_if_t<is_initializable_v<U>>>