| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <google/protobuf/stubs/common.h> |
| #include <google/protobuf/test_util.h> |
| #include <google/protobuf/unittest.pb.h> |
| #include <gtest/gtest.h> |
| |
| #if LANG_CXX11 |
| #include <type_traits> |
| #endif |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace cpp { |
| |
| // Can't use an anonymous namespace here due to brokenness of Tru64 compiler. |
| namespace cpp_unittest { |
| |
| // Moves are enabled only when compiling with a C++11 compiler or newer. |
| #if LANG_CXX11 |
| |
| TEST(MovableMessageTest, MoveConstructor) { |
| protobuf_unittest::TestAllTypes message1; |
| TestUtil::SetAllFields(&message1); |
| const auto* nested = &message1.optional_nested_message(); |
| |
| protobuf_unittest::TestAllTypes message2(std::move(message1)); |
| TestUtil::ExpectAllFieldsSet(message2); |
| |
| // Check if the optional_nested_message was actually moved (and not just |
| // copied). |
| EXPECT_EQ(nested, &message2.optional_nested_message()); |
| EXPECT_NE(nested, &message1.optional_nested_message()); |
| } |
| |
| TEST(MovableMessageTest, MoveAssignmentOperator) { |
| protobuf_unittest::TestAllTypes message1; |
| TestUtil::SetAllFields(&message1); |
| const auto* nested = &message1.optional_nested_message(); |
| |
| protobuf_unittest::TestAllTypes message2; |
| message2 = std::move(message1); |
| TestUtil::ExpectAllFieldsSet(message2); |
| |
| // Check if the optional_nested_message was actually moved (and not just |
| // copied). |
| EXPECT_EQ(nested, &message2.optional_nested_message()); |
| EXPECT_NE(nested, &message1.optional_nested_message()); |
| } |
| |
| TEST(MovableMessageTest, SelfMoveAssignment) { |
| // The `self` reference is necessary to defeat -Wself-move. |
| protobuf_unittest::TestAllTypes message, &self = message; |
| TestUtil::SetAllFields(&message); |
| message = std::move(self); |
| TestUtil::ExpectAllFieldsSet(message); |
| } |
| |
| TEST(MovableMessageTest, MoveSameArena) { |
| Arena arena; |
| |
| auto* message1_on_arena = |
| Arena::CreateMessage<protobuf_unittest::TestAllTypes>(&arena); |
| TestUtil::SetAllFields(message1_on_arena); |
| const auto* nested = &message1_on_arena->optional_nested_message(); |
| |
| auto* message2_on_arena = |
| Arena::CreateMessage<protobuf_unittest::TestAllTypes>(&arena); |
| |
| // Moving messages on the same arena should lead to swapped pointers. |
| *message2_on_arena = std::move(*message1_on_arena); |
| EXPECT_EQ(nested, &message2_on_arena->optional_nested_message()); |
| } |
| |
| TEST(MovableMessageTest, MoveDifferentArenas) { |
| Arena arena1, arena2; |
| |
| auto* message1_on_arena = |
| Arena::CreateMessage<protobuf_unittest::TestAllTypes>(&arena1); |
| TestUtil::SetAllFields(message1_on_arena); |
| const auto* nested = &message1_on_arena->optional_nested_message(); |
| |
| auto* message2_on_arena = |
| Arena::CreateMessage<protobuf_unittest::TestAllTypes>(&arena2); |
| |
| // Moving messages on two different arenas should lead to a copy. |
| *message2_on_arena = std::move(*message1_on_arena); |
| EXPECT_NE(nested, &message2_on_arena->optional_nested_message()); |
| TestUtil::ExpectAllFieldsSet(*message1_on_arena); |
| TestUtil::ExpectAllFieldsSet(*message2_on_arena); |
| } |
| |
| TEST(MovableMessageTest, MoveFromArena) { |
| Arena arena; |
| |
| auto* message1_on_arena = |
| Arena::CreateMessage<protobuf_unittest::TestAllTypes>(&arena); |
| TestUtil::SetAllFields(message1_on_arena); |
| const auto* nested = &message1_on_arena->optional_nested_message(); |
| |
| protobuf_unittest::TestAllTypes message2; |
| |
| // Moving from a message on the arena should lead to a copy. |
| message2 = std::move(*message1_on_arena); |
| EXPECT_NE(nested, &message2.optional_nested_message()); |
| TestUtil::ExpectAllFieldsSet(*message1_on_arena); |
| TestUtil::ExpectAllFieldsSet(message2); |
| } |
| |
| TEST(MovableMessageTest, MoveToArena) { |
| Arena arena; |
| |
| protobuf_unittest::TestAllTypes message1; |
| TestUtil::SetAllFields(&message1); |
| const auto* nested = &message1.optional_nested_message(); |
| |
| auto* message2_on_arena = |
| Arena::CreateMessage<protobuf_unittest::TestAllTypes>(&arena); |
| |
| // Moving to a message on the arena should lead to a copy. |
| *message2_on_arena = std::move(message1); |
| EXPECT_NE(nested, &message2_on_arena->optional_nested_message()); |
| TestUtil::ExpectAllFieldsSet(message1); |
| TestUtil::ExpectAllFieldsSet(*message2_on_arena); |
| } |
| |
| TEST(MovableMessageTest, Noexcept) { |
| EXPECT_TRUE( |
| std::is_nothrow_move_constructible<protobuf_unittest::TestAllTypes>()); |
| EXPECT_TRUE(std::is_nothrow_move_assignable<protobuf_unittest::TestAllTypes>()); |
| } |
| |
| #endif // LANG_CXX11 |
| |
| } // namespace cpp_unittest |
| |
| } // namespace cpp |
| } // namespace compiler |
| } // namespace protobuf |
| } // namespace google |