chromium/v8/test/unittests/heap/cppgc/finalizer-trait-unittest.cc

// Copyright 2020 the V8 project 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 "include/cppgc/internal/finalizer-trait.h"

#include <type_traits>

#include "testing/gtest/include/gtest/gtest.h"

namespace cppgc {
namespace internal {

namespace {

// Trivially destructible types.
class TypeWithoutDestructor final { … };
class TypeWithPrimitive final { … };

class InvokeCounter { … };

size_t InvokeCounter::kCallcount = …;

// Regular C++ use cases.

class TypeWithDestructor final : public InvokeCounter { … };

class TypeWithVirtualDestructorBase { … };

class TypeWithVirtualDestructorChild final
    : public TypeWithVirtualDestructorBase,
      public InvokeCounter { … };

// Manual dispatch to avoid vtables.

class TypeWithCustomFinalizationMethod final : public InvokeCounter { … };

class TypeWithCustomFinalizationMethodAtBase { … };

class TypeWithCustomFinalizationMethodAtBaseChild
    : public TypeWithCustomFinalizationMethodAtBase,
      public InvokeCounter { … };

void TypeWithCustomFinalizationMethodAtBase::FinalizeGarbageCollectedObject() { … }

template <typename Type>
void ExpectFinalizerIsInvoked(Type* object) { … }

}  // namespace

TEST(FinalizerTrait, TypeWithoutDestructorHasNoFinalizer) { … }

TEST(FinalizerTrait, TypeWithPrimitiveHasNoFinalizer) { … }

TEST(FinalizerTrait, FinalizerForTypeWithDestructor) { … }

TEST(FinalizerTrait, FinalizerForTypeWithVirtualBaseDtor) { … }

TEST(FinalizerTrait, FinalizerForCustomFinalizationMethod) { … }

TEST(FinalizerTrait, FinalizerForCustomFinalizationMethodInBase) { … }

}  // namespace internal
}  // namespace cppgc