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llvm-mirror/unittests/ADT/IntrusiveRefCntPtrTest.cpp
Manuel Klimek bd5c3cbb68 RefCountedBaseVPTR needs the IntrusiveRefCntPtrInfo as friend,
now that this handles the release / retain calls.

Adds a regression test for that bug (which is a compile-time
regression) and for the last two changes to the IntrusiveRefCntPtr,
especially tests for the memory leak due to copy construction of the
ref-counted object and ensuring that the traits are used for release /
retain calls.

llvm-svn: 149411
2012-01-31 19:58:34 +00:00

65 lines
2.0 KiB
C++

//===- unittest/ADT/IntrusiveRefCntPtrTest.cpp ----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "gtest/gtest.h"
namespace llvm {
struct VirtualRefCounted : public RefCountedBaseVPTR {
virtual void f() {}
};
// Run this test with valgrind to detect memory leaks.
TEST(IntrusiveRefCntPtr, RefCountedBaseVPTRCopyDoesNotLeak) {
VirtualRefCounted *V1 = new VirtualRefCounted;
IntrusiveRefCntPtr<VirtualRefCounted> R1 = V1;
VirtualRefCounted *V2 = new VirtualRefCounted(*V1);
IntrusiveRefCntPtr<VirtualRefCounted> R2 = V2;
}
struct SimpleRefCounted : public RefCountedBase<SimpleRefCounted> {};
// Run this test with valgrind to detect memory leaks.
TEST(IntrusiveRefCntPtr, RefCountedBaseCopyDoesNotLeak) {
SimpleRefCounted *S1 = new SimpleRefCounted;
IntrusiveRefCntPtr<SimpleRefCounted> R1 = S1;
SimpleRefCounted *S2 = new SimpleRefCounted(*S1);
IntrusiveRefCntPtr<SimpleRefCounted> R2 = S2;
}
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