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