| // Copyright 2020 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <utility> |
| |
| #include "fxjs/gc/heap.h" |
| #include "testing/fxgc_unittest.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "v8/include/cppgc/member.h" |
| #include "v8/include/cppgc/persistent.h" |
| |
| namespace { |
| |
| class HeapObject : public cppgc::GarbageCollected<HeapObject> { |
| public: |
| CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED; |
| |
| void Trace(cppgc::Visitor* visitor) const { |
| visitor->Trace(frick_); |
| visitor->Trace(frack_); |
| } |
| |
| cppgc::Member<HeapObject> frick_; |
| cppgc::Member<HeapObject> frack_; |
| |
| private: |
| HeapObject() = default; |
| }; |
| |
| class CppObject { |
| public: |
| CppObject() = default; |
| |
| cppgc::Persistent<HeapObject> click_; |
| cppgc::Persistent<HeapObject> clack_; |
| }; |
| |
| } // namespace |
| |
| class MoveUnitTest : public FXGCUnitTest {}; |
| |
| TEST_F(MoveUnitTest, Member) { |
| // Moving a Member<> leaves the moved-from object as null. |
| auto* obj = |
| cppgc::MakeGarbageCollected<HeapObject>(heap()->GetAllocationHandle()); |
| obj->frick_ = obj; |
| obj->frack_ = std::move(obj->frick_); |
| EXPECT_EQ(nullptr, obj->frick_); |
| EXPECT_EQ(obj, obj->frack_); |
| } |
| |
| TEST_F(MoveUnitTest, Persistent) { |
| // Moving a Persistent<> leaves the moved-from object as null. |
| auto* obj = |
| cppgc::MakeGarbageCollected<HeapObject>(heap()->GetAllocationHandle()); |
| CppObject outsider; |
| outsider.click_ = obj; |
| outsider.clack_ = std::move(outsider.click_); |
| EXPECT_EQ(nullptr, outsider.click_); |
| EXPECT_EQ(obj, outsider.clack_); |
| } |