From 92a7e778e7394386f413cec28d67a07630f784b1 Mon Sep 17 00:00:00 2001
From: Adam Cozzette <acozzette@google.com>
Date: Fri, 1 Dec 2017 10:05:10 -0800
Subject: Integrated internal changes from Google

---
 src/google/protobuf/map_field.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src/google/protobuf/map_field.cc')

diff --git a/src/google/protobuf/map_field.cc b/src/google/protobuf/map_field.cc
index 64dcc990..ec4f83e1 100644
--- a/src/google/protobuf/map_field.cc
+++ b/src/google/protobuf/map_field.cc
@@ -43,13 +43,15 @@ MapFieldBase::~MapFieldBase() {
 
 const RepeatedPtrFieldBase& MapFieldBase::GetRepeatedField() const {
   SyncRepeatedFieldWithMap();
-  return *repeated_field_;
+  return *reinterpret_cast< ::google::protobuf::internal::RepeatedPtrFieldBase*>(
+      repeated_field_);
 }
 
 RepeatedPtrFieldBase* MapFieldBase::MutableRepeatedField() {
   SyncRepeatedFieldWithMap();
   SetRepeatedDirty();
-  return repeated_field_;
+  return reinterpret_cast< ::google::protobuf::internal::RepeatedPtrFieldBase*>(
+      repeated_field_);
 }
 
 size_t MapFieldBase::SpaceUsedExcludingSelfLong() const {
@@ -130,6 +132,7 @@ DynamicMapField::DynamicMapField(const Message* default_entry)
 DynamicMapField::DynamicMapField(const Message* default_entry,
                                  Arena* arena)
     : TypeDefinedMapFieldBase<MapKey, MapValueRef>(arena),
+      map_(arena),
       default_entry_(default_entry) {
 }
 
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