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#include "catch.hpp"
#include <tl/expected.hpp>
#include <string>
// Old versions of GCC don't have the correct trait names. Could fix them up if needs be.
#if (defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ <= 9 && \
!defined(__clang__))
// nothing for now
#else
TEST_CASE("Triviality", "[bases.triviality]") {
REQUIRE((std::is_trivially_copy_constructible<tl::expected<int,int>>::value));
REQUIRE((std::is_trivially_copy_assignable<tl::expected<int,int>>::value));
REQUIRE((std::is_trivially_move_constructible<tl::expected<int,int>>::value));
REQUIRE((std::is_trivially_move_assignable<tl::expected<int,int>>::value));
REQUIRE((std::is_trivially_destructible<tl::expected<int,int>>::value));
REQUIRE((std::is_trivially_copy_constructible<tl::expected<void,int>>::value));
REQUIRE((std::is_trivially_move_constructible<tl::expected<void,int>>::value));
REQUIRE((std::is_trivially_destructible<tl::expected<void,int>>::value));
{
struct T {
T(const T&) = default;
T(T&&) = default;
T& operator=(const T&) = default;
T& operator=(T&&) = default;
~T() = default;
};
REQUIRE((std::is_trivially_copy_constructible<tl::expected<T,int>>::value));
REQUIRE((std::is_trivially_copy_assignable<tl::expected<T,int>>::value));
REQUIRE((std::is_trivially_move_constructible<tl::expected<T,int>>::value));
REQUIRE((std::is_trivially_move_assignable<tl::expected<T,int>>::value));
REQUIRE((std::is_trivially_destructible<tl::expected<T,int>>::value));
}
{
struct T {
T(const T&){}
T(T&&) {};
T& operator=(const T&) {}
T& operator=(T&&) {};
~T(){}
};
REQUIRE((!std::is_trivially_copy_constructible<tl::expected<T,int>>::value));
REQUIRE((!std::is_trivially_copy_assignable<tl::expected<T,int>>::value));
REQUIRE((!std::is_trivially_move_constructible<tl::expected<T,int>>::value));
REQUIRE((!std::is_trivially_move_assignable<tl::expected<T,int>>::value));
REQUIRE((!std::is_trivially_destructible<tl::expected<T,int>>::value));
}
}
TEST_CASE("Deletion", "[bases.deletion]") {
REQUIRE((std::is_copy_constructible<tl::expected<int,int>>::value));
REQUIRE((std::is_copy_assignable<tl::expected<int,int>>::value));
REQUIRE((std::is_move_constructible<tl::expected<int,int>>::value));
REQUIRE((std::is_move_assignable<tl::expected<int,int>>::value));
REQUIRE((std::is_destructible<tl::expected<int,int>>::value));
{
struct T {
T()=default;
};
REQUIRE((std::is_default_constructible<tl::expected<T,int>>::value));
}
{
struct T {
T(int){}
};
REQUIRE((!std::is_default_constructible<tl::expected<T,int>>::value));
}
{
struct T {
T(const T&) = default;
T(T&&) = default;
T& operator=(const T&) = default;
T& operator=(T&&) = default;
~T() = default;
};
REQUIRE((std::is_copy_constructible<tl::expected<T,int>>::value));
REQUIRE((std::is_copy_assignable<tl::expected<T,int>>::value));
REQUIRE((std::is_move_constructible<tl::expected<T,int>>::value));
REQUIRE((std::is_move_assignable<tl::expected<T,int>>::value));
REQUIRE((std::is_destructible<tl::expected<T,int>>::value));
}
{
struct T {
T(const T&)=delete;
T(T&&)=delete;
T& operator=(const T&)=delete;
T& operator=(T&&)=delete;
};
REQUIRE((!std::is_copy_constructible<tl::expected<T,int>>::value));
REQUIRE((!std::is_copy_assignable<tl::expected<T,int>>::value));
REQUIRE((!std::is_move_constructible<tl::expected<T,int>>::value));
REQUIRE((!std::is_move_assignable<tl::expected<T,int>>::value));
}
{
struct T {
T(const T&)=delete;
T(T&&)=default;
T& operator=(const T&)=delete;
T& operator=(T&&)=default;
};
REQUIRE((!std::is_copy_constructible<tl::expected<T,int>>::value));
REQUIRE((!std::is_copy_assignable<tl::expected<T,int>>::value));
REQUIRE((std::is_move_constructible<tl::expected<T,int>>::value));
REQUIRE((std::is_move_assignable<tl::expected<T,int>>::value));
}
{
struct T {
T(const T&)=default;
T(T&&)=delete;
T& operator=(const T&)=default;
T& operator=(T&&)=delete;
};
REQUIRE((std::is_copy_constructible<tl::expected<T,int>>::value));
REQUIRE((std::is_copy_assignable<tl::expected<T,int>>::value));
}
{
tl::expected<int, int> e;
REQUIRE(std::is_default_constructible<decltype(e)>::value);
REQUIRE(std::is_copy_constructible<decltype(e)>::value);
REQUIRE(std::is_move_constructible<decltype(e)>::value);
REQUIRE(std::is_copy_assignable<decltype(e)>::value);
REQUIRE(std::is_move_assignable<decltype(e)>::value);
REQUIRE(TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(decltype(e))::value);
REQUIRE(TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(decltype(e))::value);
# if !defined(TL_EXPECTED_GCC49)
REQUIRE(std::is_trivially_move_constructible<decltype(e)>::value);
REQUIRE(std::is_trivially_move_assignable<decltype(e)>::value);
# endif
}
{
tl::expected<int, std::string> e;
REQUIRE(std::is_default_constructible<decltype(e)>::value);
REQUIRE(std::is_copy_constructible<decltype(e)>::value);
REQUIRE(std::is_move_constructible<decltype(e)>::value);
REQUIRE(std::is_copy_assignable<decltype(e)>::value);
REQUIRE(std::is_move_assignable<decltype(e)>::value);
REQUIRE(!TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(decltype(e))::value);
REQUIRE(!TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(decltype(e))::value);
# if !defined(TL_EXPECTED_GCC49)
REQUIRE(!std::is_trivially_move_constructible<decltype(e)>::value);
REQUIRE(!std::is_trivially_move_assignable<decltype(e)>::value);
# endif
}
{
tl::expected<std::string, int> e;
REQUIRE(std::is_default_constructible<decltype(e)>::value);
REQUIRE(std::is_copy_constructible<decltype(e)>::value);
REQUIRE(std::is_move_constructible<decltype(e)>::value);
REQUIRE(std::is_copy_assignable<decltype(e)>::value);
REQUIRE(std::is_move_assignable<decltype(e)>::value);
REQUIRE(!TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(decltype(e))::value);
REQUIRE(!TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(decltype(e))::value);
# if !defined(TL_EXPECTED_GCC49)
REQUIRE(!std::is_trivially_move_constructible<decltype(e)>::value);
REQUIRE(!std::is_trivially_move_assignable<decltype(e)>::value);
# endif
}
{
tl::expected<std::string, std::string> e;
REQUIRE(std::is_default_constructible<decltype(e)>::value);
REQUIRE(std::is_copy_constructible<decltype(e)>::value);
REQUIRE(std::is_move_constructible<decltype(e)>::value);
REQUIRE(std::is_copy_assignable<decltype(e)>::value);
REQUIRE(std::is_move_assignable<decltype(e)>::value);
REQUIRE(!TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(decltype(e))::value);
REQUIRE(!TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(decltype(e))::value);
# if !defined(TL_EXPECTED_GCC49)
REQUIRE(!std::is_trivially_move_constructible<decltype(e)>::value);
REQUIRE(!std::is_trivially_move_assignable<decltype(e)>::value);
# endif
}
}
#endif
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