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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef TEST_SUPPORT_UNIQUE_PTR_TEST_HELPER_H
#define TEST_SUPPORT_UNIQUE_PTR_TEST_HELPER_H
#include <memory>
#include <type_traits>
#include "test_macros.h"
#include "deleter_types.h"
struct A {
static int count;
A() { ++count; }
A(const A&) { ++count; }
virtual ~A() { --count; }
};
int A::count = 0;
struct B : public A {
static int count;
B() { ++count; }
B(const B&) { ++count; }
virtual ~B() { --count; }
};
int B::count = 0;
template <class T>
typename std::enable_if<!std::is_array<T>::value, T*>::type
newValue(int num_elements) {
assert(num_elements == 1);
return new T;
}
template <class T>
typename std::enable_if<std::is_array<T>::value,
typename std::remove_all_extents<T>::type*>::type
newValue(int num_elements) {
typedef typename std::remove_all_extents<T>::type VT;
assert(num_elements >= 1);
return new VT[num_elements];
}
struct IncompleteType;
void checkNumIncompleteTypeAlive(int i);
int getNumIncompleteTypeAlive();
IncompleteType* getNewIncomplete();
IncompleteType* getNewIncompleteArray(int size);
#if TEST_STD_VER >= 11
template <class ThisT, class ...Args>
struct args_is_this_type : std::false_type {};
template <class ThisT, class A1>
struct args_is_this_type<ThisT, A1> : std::is_same<ThisT, typename std::decay<A1>::type> {};
#endif
template <class IncompleteT = IncompleteType,
class Del = std::default_delete<IncompleteT> >
struct StoresIncomplete {
static_assert((std::is_same<IncompleteT, IncompleteType>::value ||
std::is_same<IncompleteT, IncompleteType[]>::value), "");
std::unique_ptr<IncompleteT, Del> m_ptr;
#if TEST_STD_VER >= 11
StoresIncomplete(StoresIncomplete const&) = delete;
StoresIncomplete(StoresIncomplete&&) = default;
template <class ...Args>
StoresIncomplete(Args&&... args) : m_ptr(std::forward<Args>(args)...) {
static_assert(!args_is_this_type<StoresIncomplete, Args...>::value, "");
}
#else
private:
StoresIncomplete();
StoresIncomplete(StoresIncomplete const&);
public:
#endif
~StoresIncomplete();
IncompleteType* get() const { return m_ptr.get(); }
Del& get_deleter() { return m_ptr.get_deleter(); }
};
#if TEST_STD_VER >= 11
template <class IncompleteT = IncompleteType,
class Del = std::default_delete<IncompleteT>, class... Args>
void doIncompleteTypeTest(int expect_alive, Args&&... ctor_args) {
using ValueT = typename std::remove_all_extents<IncompleteT>::type;
checkNumIncompleteTypeAlive(expect_alive);
{
StoresIncomplete<IncompleteT, Del> sptr(std::forward<Args>(ctor_args)...);
checkNumIncompleteTypeAlive(expect_alive);
if (expect_alive == 0)
assert(sptr.get() == nullptr);
else
assert(sptr.get() != nullptr);
}
checkNumIncompleteTypeAlive(0);
}
#endif
#define INCOMPLETE_TEST_EPILOGUE() \
int is_incomplete_test_anchor = is_incomplete_test(); \
\
struct IncompleteType { \
static int count; \
IncompleteType() { ++count; } \
~IncompleteType() { --count; } \
}; \
\
int IncompleteType::count = 0; \
\
void checkNumIncompleteTypeAlive(int i) { \
assert(IncompleteType::count == i); \
} \
int getNumIncompleteTypeAlive() { return IncompleteType::count; } \
IncompleteType* getNewIncomplete() { return new IncompleteType; } \
IncompleteType* getNewIncompleteArray(int size) { \
return new IncompleteType[size]; \
} \
\
template <class IncompleteT, class Del> \
StoresIncomplete<IncompleteT, Del>::~StoresIncomplete() {}
#
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wvariadic-macros"
#endif
#if TEST_STD_VER >= 11
#define DEFINE_AND_RUN_IS_INCOMPLETE_TEST(...) \
static int is_incomplete_test() { __VA_ARGS__ return 0; } \
INCOMPLETE_TEST_EPILOGUE()
#else
#define DEFINE_AND_RUN_IS_INCOMPLETE_TEST(...) \
static int is_incomplete_test() { return 0; } \
INCOMPLETE_TEST_EPILOGUE()
#endif
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
#endif // TEST_SUPPORT_UNIQUE_PTR_TEST_HELPER_H
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