diff options
Diffstat (limited to 'test/support/any_helpers.h')
-rw-r--r-- | test/support/any_helpers.h | 163 |
1 files changed, 134 insertions, 29 deletions
diff --git a/test/support/any_helpers.h b/test/support/any_helpers.h index bb1ad175c1f2d..a720ecd7c82f8 100644 --- a/test/support/any_helpers.h +++ b/test/support/any_helpers.h @@ -9,12 +9,14 @@ #ifndef ANY_HELPERS_H #define ANY_HELPERS_H -#include <experimental/any> #include <typeinfo> #include <type_traits> #include <cassert> +namespace std { namespace experimental {} } + #include "test_macros.h" +#include "type_id.h" #if !defined(TEST_HAS_NO_RTTI) #define RTTI_ASSERT(X) assert(X) @@ -32,42 +34,64 @@ template <class _Tp> > {}; +template <class T> +bool containsType(std::any const& a) { +#if !defined(TEST_HAS_NO_RTTI) + return a.type() == typeid(T); +#else + return a.has_value() && std::any_cast<T>(&a) != nullptr; +#endif +} // Return 'true' if 'Type' will be considered a small type by 'any' template <class Type> bool isSmallType() { -#if defined(_LIBCPP_VERSION) - return std::experimental::__any_imp::_IsSmallObject<Type>::value; -#else return IsSmallObject<Type>::value; -#endif - } // Assert that an object is empty. If the object used to contain an object // of type 'LastType' check that it can no longer be accessed. template <class LastType = int> -void assertEmpty(std::experimental::any const& a) { - assert(a.empty()); +void assertEmpty(std::any const& a) { + using namespace std; + assert(!a.has_value()); RTTI_ASSERT(a.type() == typeid(void)); - assert(std::experimental::any_cast<LastType const>(&a) == nullptr); + assert(any_cast<LastType const>(&a) == nullptr); } +template <class Type> +constexpr auto has_value_member(int) -> decltype(std::declval<Type&>().value, true) +{ return true; } +template <class> constexpr bool has_value_member(long) { return false; } + + // Assert that an 'any' object stores the specified 'Type' and 'value'. template <class Type> -void assertContains(std::experimental::any const& a, int value = 1) { - assert(!a.empty()); - RTTI_ASSERT(a.type() == typeid(Type)); - assert(std::experimental::any_cast<Type const &>(a).value == value); +std::enable_if_t<has_value_member<Type>(0)> +assertContains(std::any const& a, int value) { + assert(a.has_value()); + assert(containsType<Type>(a)); + assert(std::any_cast<Type const &>(a).value == value); +} + +template <class Type, class Value> +std::enable_if_t<!has_value_member<Type>(0)> +assertContains(std::any const& a, Value value) { + assert(a.has_value()); + assert(containsType<Type>(a)); + assert(std::any_cast<Type const &>(a) == value); } + // Modify the value of a "test type" stored within an any to the specified // 'value'. template <class Type> -void modifyValue(std::experimental::any& a, int value) { - assert(!a.empty()); - RTTI_ASSERT(a.type() == typeid(Type)); - std::experimental::any_cast<Type&>(a).value = value; +void modifyValue(std::any& a, int value) { + using namespace std; + using namespace std::experimental; + assert(a.has_value()); + assert(containsType<Type>(a)); + any_cast<Type&>(a).value = value; } // A test type that will trigger the small object optimization within 'any'. @@ -89,25 +113,31 @@ struct small_type int value; - explicit small_type(int val) : value(val) { + explicit small_type(int val = 0) : value(val) { + ++count; + } + explicit small_type(int, int val, int) : value(val) { + ++count; + } + small_type(std::initializer_list<int> il) : value(*il.begin()) { ++count; } - small_type(small_type const & other) throw() { + small_type(small_type const & other) noexcept { value = other.value; ++count; ++copied; ++const_copied; } - small_type(small_type& other) throw() { + small_type(small_type& other) noexcept { value = other.value; ++count; ++copied; ++non_const_copied; } - small_type(small_type && other) throw() { + small_type(small_type && other) noexcept { value = other.value; other.value = 0; ++count; @@ -163,11 +193,17 @@ struct large_type int value; - large_type(int val) : value(val) { + large_type(int val = 0) : value(val) { ++count; data[0] = 0; } - + large_type(int, int val, int) : value(val) { + ++count; + data[0] = 0; + } + large_type(std::initializer_list<int> il) : value(*il.begin()) { + ++count; + } large_type(large_type const & other) { value = other.value; ++count; @@ -236,19 +272,24 @@ void throwMyAnyExpression() { struct small_throws_on_copy { static int count; + static int copied; + static int moved; + static void reset() { count = copied = moved = 0; } int value; explicit small_throws_on_copy(int val = 0) : value(val) { ++count; } - + explicit small_throws_on_copy(int, int val, int) : value(val) { + ++count; + } small_throws_on_copy(small_throws_on_copy const &) { throwMyAnyExpression(); } small_throws_on_copy(small_throws_on_copy && other) throw() { value = other.value; - ++count; + ++count; ++moved; } ~small_throws_on_copy() { @@ -260,26 +301,35 @@ private: }; int small_throws_on_copy::count = 0; +int small_throws_on_copy::copied = 0; +int small_throws_on_copy::moved = 0; + // A test type that will NOT trigger the small object optimization within 'any'. // this type throws if it is copied. struct large_throws_on_copy { static int count; + static int copied; + static int moved; + static void reset() { count = copied = moved = 0; } int value = 0; explicit large_throws_on_copy(int val = 0) : value(val) { data[0] = 0; ++count; } - + explicit large_throws_on_copy(int, int val, int) : value(val) { + data[0] = 0; + ++count; + } large_throws_on_copy(large_throws_on_copy const &) { throwMyAnyExpression(); } large_throws_on_copy(large_throws_on_copy && other) throw() { value = other.value; - ++count; + ++count; ++moved; } ~large_throws_on_copy() { @@ -293,19 +343,24 @@ private: }; int large_throws_on_copy::count = 0; +int large_throws_on_copy::copied = 0; +int large_throws_on_copy::moved = 0; // A test type that throws when it is moved. This object will NOT trigger // the small object optimization in 'any'. struct throws_on_move { static int count; + static int copied; + static int moved; + static void reset() { count = copied = moved = 0; } int value; explicit throws_on_move(int val = 0) : value(val) { ++count; } - + explicit throws_on_move(int, int val, int) : value(val) { ++count; } throws_on_move(throws_on_move const & other) { value = other.value; - ++count; + ++count; ++copied; } throws_on_move(throws_on_move &&) { @@ -321,6 +376,56 @@ private: }; int throws_on_move::count = 0; +int throws_on_move::copied = 0; +int throws_on_move::moved = 0; + +struct small_tracked_t { + small_tracked_t() + : arg_types(&makeArgumentID<>()) {} + small_tracked_t(small_tracked_t const&) noexcept + : arg_types(&makeArgumentID<small_tracked_t const&>()) {} + small_tracked_t(small_tracked_t &&) noexcept + : arg_types(&makeArgumentID<small_tracked_t &&>()) {} + template <class ...Args> + explicit small_tracked_t(Args&&...) + : arg_types(&makeArgumentID<Args...>()) {} + template <class ...Args> + explicit small_tracked_t(std::initializer_list<int>, Args&&...) + : arg_types(&makeArgumentID<std::initializer_list<int>, Args...>()) {} + + TypeID const* arg_types; +}; +static_assert(IsSmallObject<small_tracked_t>::value, "must be small"); + +struct large_tracked_t { + large_tracked_t() + : arg_types(&makeArgumentID<>()) { dummy[0] = 42; } + large_tracked_t(large_tracked_t const&) noexcept + : arg_types(&makeArgumentID<large_tracked_t const&>()) {} + large_tracked_t(large_tracked_t &&) noexcept + : arg_types(&makeArgumentID<large_tracked_t &&>()) {} + template <class ...Args> + explicit large_tracked_t(Args&&...) + : arg_types(&makeArgumentID<Args...>()) {} + template <class ...Args> + explicit large_tracked_t(std::initializer_list<int>, Args&&...) + : arg_types(&makeArgumentID<std::initializer_list<int>, Args...>()) {} + + TypeID const* arg_types; + int dummy[10]; +}; + +static_assert(!IsSmallObject<large_tracked_t>::value, "must be small"); + + +template <class Type, class ...Args> +void assertArgsMatch(std::any const& a) { + using namespace std; + using namespace std::experimental; + assert(a.has_value()); + assert(containsType<Type>(a)); + assert(any_cast<Type const &>(a).arg_types == &makeArgumentID<Args...>()); +}; #endif |