| //===- 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 { |
| struct SimpleRefCounted : public RefCountedBase<SimpleRefCounted> { |
| SimpleRefCounted() { ++NumInstances; } |
| SimpleRefCounted(const SimpleRefCounted &) : RefCountedBase() { |
| ++NumInstances; |
| } |
| ~SimpleRefCounted() { --NumInstances; } |
| |
| static int NumInstances; |
| }; |
| int SimpleRefCounted::NumInstances = 0; |
| } // anonymous namespace |
| |
| TEST(IntrusiveRefCntPtr, RefCountedBaseCopyDoesNotLeak) { |
| EXPECT_EQ(0, SimpleRefCounted::NumInstances); |
| { |
| SimpleRefCounted *S1 = new SimpleRefCounted; |
| IntrusiveRefCntPtr<SimpleRefCounted> R1 = S1; |
| SimpleRefCounted *S2 = new SimpleRefCounted(*S1); |
| IntrusiveRefCntPtr<SimpleRefCounted> R2 = S2; |
| EXPECT_EQ(2, SimpleRefCounted::NumInstances); |
| } |
| EXPECT_EQ(0, SimpleRefCounted::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 |