100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
//===- unittest/ADT/IntrusiveRefCntPtrTest.cpp ----------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/ADT/IntrusiveRefCntPtr.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
namespace llvm {
|
|
|
|
namespace {
|
|
int NumInstances = 0;
|
|
template <template <typename> class Base>
|
|
struct SimpleRefCounted : Base<SimpleRefCounted<Base>> {
|
|
SimpleRefCounted() { ++NumInstances; }
|
|
SimpleRefCounted(const SimpleRefCounted &RHS) : Base<SimpleRefCounted>(RHS) {
|
|
++NumInstances;
|
|
}
|
|
~SimpleRefCounted() { --NumInstances; }
|
|
};
|
|
} // anonymous namespace
|
|
|
|
template <typename T> struct IntrusiveRefCntPtrTest : testing::Test {};
|
|
|
|
typedef ::testing::Types<SimpleRefCounted<RefCountedBase>,
|
|
SimpleRefCounted<ThreadSafeRefCountedBase>>
|
|
IntrusiveRefCntTypes;
|
|
TYPED_TEST_CASE(IntrusiveRefCntPtrTest, IntrusiveRefCntTypes);
|
|
|
|
TYPED_TEST(IntrusiveRefCntPtrTest, RefCountedBaseCopyDoesNotLeak) {
|
|
EXPECT_EQ(0, NumInstances);
|
|
{
|
|
TypeParam *S1 = new TypeParam;
|
|
IntrusiveRefCntPtr<TypeParam> R1 = S1;
|
|
TypeParam *S2 = new TypeParam(*S1);
|
|
IntrusiveRefCntPtr<TypeParam> R2 = S2;
|
|
EXPECT_EQ(2, NumInstances);
|
|
}
|
|
EXPECT_EQ(0, NumInstances);
|
|
}
|
|
|
|
TYPED_TEST(IntrusiveRefCntPtrTest, InteropsWithUniquePtr) {
|
|
EXPECT_EQ(0, NumInstances);
|
|
{
|
|
auto S1 = std::make_unique<TypeParam>();
|
|
IntrusiveRefCntPtr<TypeParam> R1 = std::move(S1);
|
|
EXPECT_EQ(1, NumInstances);
|
|
EXPECT_EQ(S1, nullptr);
|
|
}
|
|
EXPECT_EQ(0, NumInstances);
|
|
}
|
|
|
|
TYPED_TEST(IntrusiveRefCntPtrTest, MakeIntrusiveRefCnt) {
|
|
EXPECT_EQ(0, NumInstances);
|
|
{
|
|
auto S1 = makeIntrusiveRefCnt<TypeParam>();
|
|
auto S2 = makeIntrusiveRefCnt<const TypeParam>();
|
|
EXPECT_EQ(2, NumInstances);
|
|
static_assert(
|
|
std::is_same<decltype(S1), IntrusiveRefCntPtr<TypeParam>>::value,
|
|
"Non-const type mismatch");
|
|
static_assert(
|
|
std::is_same<decltype(S2), IntrusiveRefCntPtr<const TypeParam>>::value,
|
|
"Const type mismatch");
|
|
}
|
|
EXPECT_EQ(0, NumInstances);
|
|
}
|
|
|
|
struct InterceptRefCounted : public RefCountedBase<InterceptRefCounted> {
|
|
InterceptRefCounted(bool *Released, bool *Retained)
|
|
: Released(Released), Retained(Retained) {}
|
|
bool * const Released;
|
|
bool * const Retained;
|
|
};
|
|
template <> struct IntrusiveRefCntPtrInfo<InterceptRefCounted> {
|
|
static void retain(InterceptRefCounted *I) {
|
|
*I->Retained = true;
|
|
I->Retain();
|
|
}
|
|
static void release(InterceptRefCounted *I) {
|
|
*I->Released = true;
|
|
I->Release();
|
|
}
|
|
};
|
|
TEST(IntrusiveRefCntPtr, UsesTraitsToRetainAndRelease) {
|
|
bool Released = false;
|
|
bool Retained = false;
|
|
{
|
|
InterceptRefCounted *I = new InterceptRefCounted(&Released, &Retained);
|
|
IntrusiveRefCntPtr<InterceptRefCounted> R = I;
|
|
}
|
|
EXPECT_TRUE(Released);
|
|
EXPECT_TRUE(Retained);
|
|
}
|
|
|
|
} // end namespace llvm
|