third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/message_lite.cc

Index: third_party/protobuf/src/google/protobuf/message_lite.cc
diff --git a/third_party/protobuf/src/google/protobuf/message_lite.cc b/third_party/protobuf/src/google/protobuf/message_lite.cc
index 9d7b64f7472cb24a915d81df7368869026c872b4..a42e9ec3121833821a81dab47d1cc5ae63ea02c3 100644
--- a/third_party/protobuf/src/google/protobuf/message_lite.cc
+++ b/third_party/protobuf/src/google/protobuf/message_lite.cc
@@ -33,8 +33,11 @@
 //  Based on original Protocol Buffers design by
 //  Sanjay Ghemawat, Jeff Dean, and others.
 
-#include <google/protobuf/message_lite.h>
+#include <climits>
+
 #include <google/protobuf/arena.h>
+#include <google/protobuf/generated_message_util.h>
+#include <google/protobuf/message_lite.h>
 #include <google/protobuf/repeated_field.h>
 #include <string>
 #include <google/protobuf/stubs/logging.h>
@@ -46,8 +49,6 @@
 namespace google {
 namespace protobuf {
 
-MessageLite::~MessageLite() {}
-
 string MessageLite::InitializationErrorString() const {
   return "(cannot determine missing fields for lite message)";
 }
@@ -60,9 +61,9 @@ namespace {
 // protobuf implementation but is more likely caused by concurrent modification
 // of the message.  This function attempts to distinguish between the two and
 // provide a useful error message.
-void ByteSizeConsistencyError(int byte_size_before_serialization,
-                              int byte_size_after_serialization,
-                              int bytes_produced_by_serialization,
+void ByteSizeConsistencyError(size_t byte_size_before_serialization,
+                              size_t byte_size_after_serialization,
+                              size_t bytes_produced_by_serialization,
                               const MessageLite& message) {
   GOOGLE_CHECK_EQ(byte_size_before_serialization, byte_size_after_serialization)
       << message.GetTypeName()
@@ -221,7 +222,8 @@ bool MessageLite::ParsePartialFromArray(const void* data, int size) {
 
 // ===================================================================
 
-uint8* MessageLite::SerializeWithCachedSizesToArray(uint8* target) const {
+uint8* MessageLite::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, uint8* target) const {
   // We only optimize this when using optimize_for = SPEED.  In other cases
   // we just use the CodedOutputStream path.
   int size = GetCachedSize();
@@ -239,18 +241,18 @@ bool MessageLite::SerializeToCodedStream(io::CodedOutputStream* output) const {
 
 bool MessageLite::SerializePartialToCodedStream(
     io::CodedOutputStream* output) const {
-  const int size = ByteSize();  // Force size to be cached.
-  if (size < 0) {
-    // Messages >2G cannot be serialized due to overflow computing ByteSize.
-    GOOGLE_LOG(ERROR) << "Error computing ByteSize (possible overflow?).";
+  const size_t size = ByteSizeLong();  // Force size to be cached.
+  if (size > INT_MAX) {
+    GOOGLE_LOG(ERROR) << "Exceeded maximum protobuf size of 2GB: " << size;
     return false;
   }
 
   uint8* buffer = output->GetDirectBufferForNBytesAndAdvance(size);
   if (buffer != NULL) {
-    uint8* end = SerializeWithCachedSizesToArray(buffer);
+    uint8* end = InternalSerializeWithCachedSizesToArray(
+        output->IsSerializationDeterministic(), buffer);
     if (end - buffer != size) {
-      ByteSizeConsistencyError(size, ByteSize(), end - buffer, *this);
+      ByteSizeConsistencyError(size, ByteSizeLong(), end - buffer, *this);
     }
     return true;
   } else {
@@ -262,7 +264,7 @@ bool MessageLite::SerializePartialToCodedStream(
     int final_byte_count = output->ByteCount();
 
     if (final_byte_count - original_byte_count != size) {
-      ByteSizeConsistencyError(size, ByteSize(),
+      ByteSizeConsistencyError(size, ByteSizeLong(),
                                final_byte_count - original_byte_count, *this);
     }
 
@@ -288,11 +290,10 @@ bool MessageLite::AppendToString(string* output) const {
 }
 
 bool MessageLite::AppendPartialToString(string* output) const {
-  int old_size = output->size();
-  int byte_size = ByteSize();
-  if (byte_size < 0) {
-    // Messages >2G cannot be serialized due to overflow computing ByteSize.
-    GOOGLE_LOG(ERROR) << "Error computing ByteSize (possible overflow?).";
+  size_t old_size = output->size();
+  size_t byte_size = ByteSizeLong();
+  if (byte_size > INT_MAX) {
+    GOOGLE_LOG(ERROR) << "Exceeded maximum protobuf size of 2GB: " << byte_size;
     return false;
   }
 
@@ -301,7 +302,7 @@ bool MessageLite::AppendPartialToString(string* output) const {
       reinterpret_cast<uint8*>(io::mutable_string_data(output) + old_size);
   uint8* end = SerializeWithCachedSizesToArray(start);
   if (end - start != byte_size) {
-    ByteSizeConsistencyError(byte_size, ByteSize(), end - start, *this);
+    ByteSizeConsistencyError(byte_size, ByteSizeLong(), end - start, *this);
   }
   return true;
 }
@@ -322,12 +323,12 @@ bool MessageLite::SerializeToArray(void* data, int size) const {
 }
 
 bool MessageLite::SerializePartialToArray(void* data, int size) const {
-  int byte_size = ByteSize();
+  int byte_size = ByteSizeLong();
   if (size < byte_size) return false;
   uint8* start = reinterpret_cast<uint8*>(data);
   uint8* end = SerializeWithCachedSizesToArray(start);
   if (end - start != byte_size) {
-    ByteSizeConsistencyError(byte_size, ByteSize(), end - start, *this);
+    ByteSizeConsistencyError(byte_size, ByteSizeLong(), end - start, *this);
   }
   return true;
 }