//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef TEST_LIBCXX_UTILITIES_SMARTPTR_ADAPT_TYPES_H
#define TEST_LIBCXX_UTILITIES_SMARTPTR_ADAPT_TYPES_H
#include <type_traits>
#include <memory>
#include "test_macros.h"
// Custom deleters.
template <typename T>
struct MoveOnlyDeleter {
MoveOnlyDeleter() = default;
MoveOnlyDeleter(const MoveOnlyDeleter&) = delete;
MoveOnlyDeleter& operator=(const MoveOnlyDeleter&) = delete;
MoveOnlyDeleter(MoveOnlyDeleter&&) : wasMoveInitilized{true} {}
MoveOnlyDeleter& operator=(MoveOnlyDeleter&&) = default;
void operator()(T* p) const { delete p; }
bool wasMoveInitilized = false;
};
// Custom pointer types.
template <typename T>
struct ConstructiblePtr {
using pointer = T*;
std::unique_ptr<T> ptr;
ConstructiblePtr() = default;
explicit ConstructiblePtr(T* p) : ptr{p} {}
auto operator==(T val) { return *ptr == val; }
auto* get() const { return ptr.get(); }
void release() { ptr.release(); }
};
LIBCPP_STATIC_ASSERT(std::is_same_v<std::__pointer_of_t< ConstructiblePtr<int>>, int* >);
static_assert(std::is_constructible_v< ConstructiblePtr<int>, int* >);
struct ResetArg {};
template <typename T>
struct ResettablePtr {
using element_type = T;
std::unique_ptr<T> ptr;
explicit ResettablePtr(T* p) : ptr{p} {}
auto operator*() const { return *ptr; }
auto operator==(T val) { return *ptr == val; }
void reset() { ptr.reset(); }
void reset(T* p, ResetArg) { ptr.reset(p); }
auto* get() const { return ptr.get(); }
void release() { ptr.release(); }
};
LIBCPP_STATIC_ASSERT(std::is_same_v<std::__pointer_of_t< ResettablePtr<int>>, int* >);
static_assert(std::is_constructible_v< ResettablePtr<int>, int* >);
template <typename T>
struct NonConstructiblePtr : public ResettablePtr<T> {
NonConstructiblePtr() : NonConstructiblePtr::ResettablePtr(nullptr) {};
void reset(T* p) { ResettablePtr<T>::ptr.reset(p); }
};
LIBCPP_STATIC_ASSERT(std::is_same_v<std::__pointer_of_t< NonConstructiblePtr<int>>, int* >);
static_assert(!std::is_constructible_v< NonConstructiblePtr<int>, int* >);
#endif // TEST_LIBCXX_UTILITIES_SMARTPTR_ADAPT_TYPES_H