From c36b713c47c8255f5a41b0c0053997ff11d95859 Mon Sep 17 00:00:00 2001
From: Milo Yip <miloyip@gmail.com>
Date: Wed, 25 Sep 2019 18:02:17 +0800
Subject: [PATCH] Disable copy constructor in GenericMember

---
 include/rapidjson/document.h | 26 +++++++++++++++++++++++++-
 include/rapidjson/fwd.h      |  2 +-
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/include/rapidjson/document.h b/include/rapidjson/document.h
index 9783fe4..f3f885f 100644
--- a/include/rapidjson/document.h
+++ b/include/rapidjson/document.h
@@ -63,15 +63,39 @@ class GenericDocument;
     https://code.google.com/p/rapidjson/issues/detail?id=64
 */
 template <typename Encoding, typename Allocator> 
-struct GenericMember { 
+class GenericMember {
+public:
     GenericValue<Encoding, Allocator> name;     //!< name of member (must be a string)
     GenericValue<Encoding, Allocator> value;    //!< value of member.
 
+#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
+    //! Move constructor in C++11
+    GenericMember(GenericMember&& rhs) RAPIDJSON_NOEXCEPT = default;
+
+    //! Move assignment in C++11
+    GenericMember& operator=(GenericMember&& rhs) RAPIDJSON_NOEXCEPT = default;
+#endif
+
+    //! Assignment with move semantics.
+    /*! \param rhs Source of the assignment. Its name and value will become a null value after assignment.
+    */
+    GenericMember& operator=(GenericMember& rhs) RAPIDJSON_NOEXCEPT {
+        if (RAPIDJSON_LIKELY(this != &rhs)) {
+            name = rhs.name;
+            value = rhs.value;
+        }
+        return *this;
+    }
+
     // swap() for std::sort() and other potential use in STL.
     friend inline void swap(GenericMember& a, GenericMember& b) RAPIDJSON_NOEXCEPT {
         a.name.Swap(b.name);
         a.value.Swap(b.value);
     }
+
+private:
+    //! Copy constructor is not permitted.
+    GenericMember(const GenericMember& rhs);
 };
 
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/include/rapidjson/fwd.h b/include/rapidjson/fwd.h
index e8104e8..b74a2b8 100644
--- a/include/rapidjson/fwd.h
+++ b/include/rapidjson/fwd.h
@@ -102,7 +102,7 @@ class PrettyWriter;
 // document.h
 
 template <typename Encoding, typename Allocator> 
-struct GenericMember;
+class GenericMember;
 
 template <bool Const, typename Encoding, typename Allocator>
 class GenericMemberIterator;