Update protobuf library from 2.3 to 2.6.

Copied in all files from the open source protobuf project at commit
edc5994525c79cd1919859a370837a6ff7c8e308, removing files which have
been renamed (COPYING.txt -> LICENSE, README.txt -> README.md).

Removed 2.3 prebuilts, which is an approach that will not work due to
incompatibility with the 2.6 runtime.

Merged in micro/nano-specific changes in the following files:

-Android.mk - updated list of C++/Java sources, bumped versions
-java/README.txt - merged in micro/nano instructions, bumped versions
-java/pom.xml - merged in micro/nano build rules, set packaging to jar
-src/Makefile.am - merged in references to micro/nano generators
-src/google/protobuf/compiler/javamicro/javamicro_file.h - imported
 google/protobuf/compiler/code_generator.h and removed redundant
 OutputDirectory class.
-src/google/protobuf/compiler/javanano/javanano_file.h - same
-Replaced instances of vector with std::vector as needed to get
 libprotobuf-cpp-full to compile. Plan to upstream this fix per
 discussion with protobuf maintainers.

Reran autogen.sh to update ./configure and associated scripts.

Change-Id: I949d32fb5126f1c05e2a6ed48f6636a4a9b15a48

1 files changed, 149 insertions, 3 deletions

diff --git a/src/google/protobuf/message_unittest.cc b/src/google/protobuf/message_unittest.cc
index 33b9e77..8b6fd6f 100644
--- a/src/google/protobuf/message_unittest.cc
+++ b/src/google/protobuf/message_unittest.cc
@@ -45,7 +45,6 @@
 #include <sstream>
 #include <fstream>
 
-#include <google/protobuf/stubs/common.h>
 #include <google/protobuf/io/zero_copy_stream_impl.h>
 #include <google/protobuf/io/coded_stream.h>
 #include <google/protobuf/descriptor.h>
@@ -53,6 +52,7 @@
 #include <google/protobuf/unittest.pb.h>
 #include <google/protobuf/test_util.h>
 
+#include <google/protobuf/stubs/common.h>
 #include <google/protobuf/testing/googletest.h>
 #include <gtest/gtest.h>
 
@@ -205,7 +205,7 @@ TEST(MessageTest, InitializationErrorString) {
   EXPECT_EQ("a, b, c", message.InitializationErrorString());
 }
 
-#ifdef GTEST_HAS_DEATH_TEST  // death tests do not work on Windows yet.
+#ifdef PROTOBUF_HAS_DEATH_TEST  // death tests do not work on Windows yet.
 
 TEST(MessageTest, SerializeFailsIfNotInitialized) {
   unittest::TestRequired message;
@@ -222,7 +222,25 @@ TEST(MessageTest, CheckInitialized) {
     "fields: a, b, c");
 }
 
-#endif  // GTEST_HAS_DEATH_TEST
+TEST(MessageTest, CheckOverflow) {
+  unittest::TestAllTypes message;
+  // Create a message with size just over 2GB. This triggers integer overflow
+  // when computing message size.
+  const string data(1024, 'x');
+  Cord one_megabyte;
+  for (int i = 0; i < 1024; i++) {
+    one_megabyte.Append(data);
+  }
+
+  for (int i = 0; i < 2 * 1024 + 1; ++i) {
+    message.add_repeated_cord()->CopyFrom(one_megabyte);
+  }
+
+  Cord serialized;
+  EXPECT_FALSE(message.AppendToCord(&serialized));
+}
+
+#endif  // PROTOBUF_HAS_DEATH_TEST
 
 TEST(MessageTest, BypassInitializationCheckOnSerialize) {
   unittest::TestRequired message;
@@ -257,6 +275,133 @@ TEST(MessageTest, ParseFailsOnInvalidMessageEnd) {
   EXPECT_FALSE(message.ParseFromArray("\014", 1));
 }
 
+namespace {
+
+void ExpectMessageMerged(const unittest::TestAllTypes& message) {
+  EXPECT_EQ(3, message.optional_int32());
+  EXPECT_EQ(2, message.optional_int64());
+  EXPECT_EQ("hello", message.optional_string());
+}
+
+void AssignParsingMergeMessages(
+    unittest::TestAllTypes* msg1,
+    unittest::TestAllTypes* msg2,
+    unittest::TestAllTypes* msg3) {
+  msg1->set_optional_int32(1);
+  msg2->set_optional_int64(2);
+  msg3->set_optional_int32(3);
+  msg3->set_optional_string("hello");
+}
+
+}  // namespace
+
+// Test that if an optional or required message/group field appears multiple
+// times in the input, they need to be merged.
+TEST(MessageTest, ParsingMerge) {
+  unittest::TestParsingMerge::RepeatedFieldsGenerator generator;
+  unittest::TestAllTypes* msg1;
+  unittest::TestAllTypes* msg2;
+  unittest::TestAllTypes* msg3;
+
+#define ASSIGN_REPEATED_FIELD(FIELD)                \
+  msg1 = generator.add_##FIELD();                   \
+  msg2 = generator.add_##FIELD();                   \
+  msg3 = generator.add_##FIELD();                   \
+  AssignParsingMergeMessages(msg1, msg2, msg3)
+
+  ASSIGN_REPEATED_FIELD(field1);
+  ASSIGN_REPEATED_FIELD(field2);
+  ASSIGN_REPEATED_FIELD(field3);
+  ASSIGN_REPEATED_FIELD(ext1);
+  ASSIGN_REPEATED_FIELD(ext2);
+
+#undef ASSIGN_REPEATED_FIELD
+#define ASSIGN_REPEATED_GROUP(FIELD)                \
+  msg1 = generator.add_##FIELD()->mutable_field1(); \
+  msg2 = generator.add_##FIELD()->mutable_field1(); \
+  msg3 = generator.add_##FIELD()->mutable_field1(); \
+  AssignParsingMergeMessages(msg1, msg2, msg3)
+
+  ASSIGN_REPEATED_GROUP(group1);
+  ASSIGN_REPEATED_GROUP(group2);
+
+#undef ASSIGN_REPEATED_GROUP
+
+  string buffer;
+  generator.SerializeToString(&buffer);
+  unittest::TestParsingMerge parsing_merge;
+  parsing_merge.ParseFromString(buffer);
+
+  // Required and optional fields should be merged.
+  ExpectMessageMerged(parsing_merge.required_all_types());
+  ExpectMessageMerged(parsing_merge.optional_all_types());
+  ExpectMessageMerged(
+      parsing_merge.optionalgroup().optional_group_all_types());
+  ExpectMessageMerged(
+      parsing_merge.GetExtension(unittest::TestParsingMerge::optional_ext));
+
+  // Repeated fields should not be merged.
+  EXPECT_EQ(3, parsing_merge.repeated_all_types_size());
+  EXPECT_EQ(3, parsing_merge.repeatedgroup_size());
+  EXPECT_EQ(3, parsing_merge.ExtensionSize(
+      unittest::TestParsingMerge::repeated_ext));
+}
+
+TEST(MessageTest, MergeFrom) {
+  unittest::TestAllTypes source;
+  unittest::TestAllTypes dest;
+
+  // Optional fields
+  source.set_optional_int32(1);  // only source
+  source.set_optional_int64(2);  // both source and dest
+  dest.set_optional_int64(3);
+  dest.set_optional_uint32(4);   // only dest
+
+  // Optional fields with defaults
+  source.set_default_int32(13);  // only source
+  source.set_default_int64(14);  // both source and dest
+  dest.set_default_int64(15);
+  dest.set_default_uint32(16);   // only dest
+
+  // Repeated fields
+  source.add_repeated_int32(5);  // only source
+  source.add_repeated_int32(6);
+  source.add_repeated_int64(7);  // both source and dest
+  source.add_repeated_int64(8);
+  dest.add_repeated_int64(9);
+  dest.add_repeated_int64(10);
+  dest.add_repeated_uint32(11);  // only dest
+  dest.add_repeated_uint32(12);
+
+  dest.MergeFrom(source);
+
+  // Optional fields: source overwrites dest if source is specified
+  EXPECT_EQ(1, dest.optional_int32());  // only source: use source
+  EXPECT_EQ(2, dest.optional_int64());  // source and dest: use source
+  EXPECT_EQ(4, dest.optional_uint32());  // only dest: use dest
+  EXPECT_EQ(0, dest.optional_uint64());  // neither: use default
+
+  // Optional fields with defaults
+  EXPECT_EQ(13, dest.default_int32());  // only source: use source
+  EXPECT_EQ(14, dest.default_int64());  // source and dest: use source
+  EXPECT_EQ(16, dest.default_uint32());  // only dest: use dest
+  EXPECT_EQ(44, dest.default_uint64());  // neither: use default
+
+  // Repeated fields: concatenate source onto the end of dest
+  ASSERT_EQ(2, dest.repeated_int32_size());
+  EXPECT_EQ(5, dest.repeated_int32(0));
+  EXPECT_EQ(6, dest.repeated_int32(1));
+  ASSERT_EQ(4, dest.repeated_int64_size());
+  EXPECT_EQ(9,  dest.repeated_int64(0));
+  EXPECT_EQ(10, dest.repeated_int64(1));
+  EXPECT_EQ(7,  dest.repeated_int64(2));
+  EXPECT_EQ(8,  dest.repeated_int64(3));
+  ASSERT_EQ(2, dest.repeated_uint32_size());
+  EXPECT_EQ(11, dest.repeated_uint32(0));
+  EXPECT_EQ(12, dest.repeated_uint32(1));
+  ASSERT_EQ(0, dest.repeated_uint64_size());
+}
+
 TEST(MessageFactoryTest, GeneratedFactoryLookup) {
   EXPECT_EQ(
     MessageFactory::generated_factory()->GetPrototype(
@@ -277,5 +422,6 @@ TEST(MessageFactoryTest, GeneratedFactoryUnknownType) {
     MessageFactory::generated_factory()->GetPrototype(descriptor) == NULL);
 }
 
+
 }  // namespace protobuf
 }  // namespace google