148 lines
		
	
	
		
			5.2 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			148 lines
		
	
	
		
			5.2 KiB
		
	
	
	
		
			C++
		
	
	
	
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef TEST_SUPPORT_UNIQUE_PTR_TEST_HELPER_H
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#define TEST_SUPPORT_UNIQUE_PTR_TEST_HELPER_H
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#include <memory>
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#include <type_traits>
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#include "test_macros.h"
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#include "deleter_types.h"
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struct A {
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  static int count;
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  A() { ++count; }
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  A(const A&) { ++count; }
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  virtual ~A() { --count; }
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};
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int A::count = 0;
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struct B : public A {
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  static int count;
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  B() { ++count; }
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  B(const B& other) : A(other) { ++count; }
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  virtual ~B() { --count; }
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};
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int B::count = 0;
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template <class T>
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typename std::enable_if<!std::is_array<T>::value, T*>::type
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newValue(int num_elements) {
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  assert(num_elements == 1);
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  return new T;
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}
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template <class T>
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typename std::enable_if<std::is_array<T>::value,
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                        typename std::remove_all_extents<T>::type*>::type
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newValue(int num_elements) {
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  typedef typename std::remove_all_extents<T>::type VT;
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  assert(num_elements >= 1);
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  return new VT[num_elements];
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}
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struct IncompleteType;
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void checkNumIncompleteTypeAlive(int i);
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int getNumIncompleteTypeAlive();
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IncompleteType* getNewIncomplete();
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IncompleteType* getNewIncompleteArray(int size);
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#if TEST_STD_VER >= 11
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template <class ThisT, class ...Args>
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struct args_is_this_type : std::false_type {};
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template <class ThisT, class A1>
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struct args_is_this_type<ThisT, A1> : std::is_same<ThisT, typename std::decay<A1>::type> {};
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#endif
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template <class IncompleteT = IncompleteType,
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          class Del = std::default_delete<IncompleteT> >
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struct StoresIncomplete {
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  static_assert((std::is_same<IncompleteT, IncompleteType>::value ||
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                 std::is_same<IncompleteT, IncompleteType[]>::value), "");
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  std::unique_ptr<IncompleteT, Del> m_ptr;
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#if TEST_STD_VER >= 11
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  StoresIncomplete(StoresIncomplete const&) = delete;
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  StoresIncomplete(StoresIncomplete&&) = default;
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  template <class ...Args>
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  StoresIncomplete(Args&&... args) : m_ptr(std::forward<Args>(args)...) {
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    static_assert(!args_is_this_type<StoresIncomplete, Args...>::value, "");
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  }
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#else
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private:
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  StoresIncomplete();
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  StoresIncomplete(StoresIncomplete const&);
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public:
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#endif
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  ~StoresIncomplete();
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  IncompleteType* get() const { return m_ptr.get(); }
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  Del& get_deleter() { return m_ptr.get_deleter(); }
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};
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#if TEST_STD_VER >= 11
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template <class IncompleteT = IncompleteType,
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          class Del = std::default_delete<IncompleteT>, class... Args>
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void doIncompleteTypeTest(int expect_alive, Args&&... ctor_args) {
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  checkNumIncompleteTypeAlive(expect_alive);
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  {
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    StoresIncomplete<IncompleteT, Del> sptr(std::forward<Args>(ctor_args)...);
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    checkNumIncompleteTypeAlive(expect_alive);
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    if (expect_alive == 0)
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      assert(sptr.get() == nullptr);
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    else
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      assert(sptr.get() != nullptr);
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  }
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  checkNumIncompleteTypeAlive(0);
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}
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#endif
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#define INCOMPLETE_TEST_EPILOGUE()                                             \
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  int is_incomplete_test_anchor = is_incomplete_test();                        \
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                                                                               \
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  struct IncompleteType {                                                      \
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    static int count;                                                          \
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    IncompleteType() { ++count; }                                              \
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    ~IncompleteType() { --count; }                                             \
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  };                                                                           \
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                                                                               \
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  int IncompleteType::count = 0;                                               \
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                                                                               \
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  void checkNumIncompleteTypeAlive(int i) {                                    \
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    assert(IncompleteType::count == i);                                        \
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  }                                                                            \
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  int getNumIncompleteTypeAlive() { return IncompleteType::count; }            \
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  IncompleteType* getNewIncomplete() { return new IncompleteType; }            \
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  IncompleteType* getNewIncompleteArray(int size) {                            \
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    return new IncompleteType[size];                                           \
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  }                                                                            \
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                                                                               \
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  template <class IncompleteT, class Del>                                      \
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  StoresIncomplete<IncompleteT, Del>::~StoresIncomplete() {}
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#
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#if TEST_STD_VER >= 11
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#define DEFINE_AND_RUN_IS_INCOMPLETE_TEST(...)                                 \
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  static int is_incomplete_test() { __VA_ARGS__ return 0; }                    \
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  INCOMPLETE_TEST_EPILOGUE()
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#else
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#define DEFINE_AND_RUN_IS_INCOMPLETE_TEST(...)                                 \
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  static int is_incomplete_test() { return 0; }                                \
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  INCOMPLETE_TEST_EPILOGUE()
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#endif
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#endif // TEST_SUPPORT_UNIQUE_PTR_TEST_HELPER_H
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