1 files changed, 289 insertions, 0 deletions
diff --git a/asl/base/meta_tests.cpp b/asl/base/meta_tests.cpp
new file mode 100644
index 0000000..7aa7145
--- /dev/null
+++ b/asl/base/meta_tests.cpp
@@ -0,0 +1,289 @@
+#include "asl/base/meta.hpp"
+#include "asl/tests/types.hpp"
+#include "asl/testing/testing.hpp"
+#include "asl/types/box.hpp"
+
+struct Struct {};
+union Union {};
+enum Enum : uint8_t { EnumVariant = 0, };
+enum class EnumClass : uint8_t { Variant = 0, };
+
+static_assert(!asl::same_as<long, short>);
+static_assert(asl::same_as<int, int>);
+
+static_assert(asl::same_as<asl::select_t<false, int, float>, float>);
+static_assert(asl::same_as<asl::select_t<true, int, float>, int>);
+
+static_assert(asl::default_constructible<int>);
+static_assert(asl::default_constructible<TrivialType>);
+static_assert(asl::default_constructible<TrivialTypeDefaultValue>);
+
+static_assert(asl::trivially_default_constructible<int>);
+static_assert(asl::trivially_default_constructible<TrivialType>);
+static_assert(!asl::trivially_default_constructible<TrivialTypeDefaultValue>);
+
+static_assert(asl::copy_constructible<int>);
+static_assert(asl::copy_constructible<TrivialType>);
+static_assert(asl::copy_constructible<Copyable>);
+static_assert(!asl::copy_constructible<MoveableOnly>);
+static_assert(!asl::copy_constructible<Pinned>);
+
+static_assert(asl::trivially_copy_constructible<int>);
+static_assert(asl::trivially_copy_constructible<TrivialType>);
+static_assert(asl::trivially_copy_constructible<TrivialTypeDefaultValue>);
+static_assert(!asl::trivially_copy_constructible<WithDestructor>);
+static_assert(!asl::trivially_copy_constructible<Copyable>);
+static_assert(!asl::trivially_copy_constructible<MoveableOnly>);
+static_assert(!asl::trivially_copy_constructible<Pinned>);
+
+static_assert(asl::move_constructible<int>);
+static_assert(asl::move_constructible<TrivialType>);
+static_assert(asl::move_constructible<Copyable>);
+static_assert(asl::move_constructible<MoveableOnly>);
+static_assert(!asl::move_constructible<Pinned>);
+
+static_assert(asl::trivially_move_constructible<int>);
+static_assert(asl::trivially_move_constructible<TrivialType>);
+static_assert(asl::trivially_move_constructible<TrivialTypeDefaultValue>);
+static_assert(!asl::trivially_move_constructible<WithDestructor>);
+static_assert(!asl::trivially_move_constructible<Copyable>);
+static_assert(!asl::trivially_move_constructible<MoveableOnly>);
+static_assert(!asl::trivially_move_constructible<Pinned>);
+
+static_assert(asl::copy_assignable<int>);
+static_assert(asl::copy_assignable<TrivialType>);
+static_assert(asl::copy_assignable<Copyable>);
+static_assert(!asl::copy_assignable<MoveableOnly>);
+static_assert(!asl::copy_assignable<Pinned>);
+
+static_assert(asl::trivially_copy_assignable<int>);
+static_assert(asl::trivially_copy_assignable<TrivialType>);
+static_assert(asl::trivially_copy_assignable<TrivialTypeDefaultValue>);
+static_assert(asl::trivially_copy_assignable<WithDestructor>);
+static_assert(!asl::trivially_copy_assignable<Copyable>);
+static_assert(!asl::trivially_copy_assignable<MoveableOnly>);
+static_assert(!asl::trivially_copy_assignable<Pinned>);
+
+static_assert(asl::copyable<int>);
+static_assert(asl::copyable<TrivialType>);
+static_assert(asl::copyable<Copyable>);
+static_assert(!asl::copyable<MoveableOnly>);
+static_assert(!asl::copyable<Pinned>);
+
+static_assert(asl::moveable<int>);
+static_assert(asl::moveable<TrivialType>);
+static_assert(asl::moveable<Copyable>);
+static_assert(asl::moveable<MoveableOnly>);
+static_assert(!asl::moveable<Pinned>);
+
+static_assert(asl::move_assignable<int>);
+static_assert(asl::move_assignable<TrivialType>);
+static_assert(asl::move_assignable<Copyable>);
+static_assert(asl::move_assignable<MoveableOnly>);
+static_assert(!asl::move_assignable<Pinned>);
+
+static_assert(asl::trivially_move_assignable<int>);
+static_assert(asl::trivially_move_assignable<TrivialType>);
+static_assert(asl::trivially_move_assignable<TrivialTypeDefaultValue>);
+static_assert(asl::trivially_move_assignable<WithDestructor>);
+static_assert(!asl::trivially_move_assignable<Copyable>);
+static_assert(!asl::trivially_move_assignable<MoveableOnly>);
+static_assert(!asl::trivially_move_assignable<Pinned>);
+
+static_assert(asl::trivially_destructible<int>);
+static_assert(asl::trivially_destructible<TrivialType>);
+static_assert(asl::trivially_destructible<TrivialTypeDefaultValue>);
+static_assert(!asl::trivially_destructible<WithDestructor>);
+static_assert(asl::trivially_destructible<Copyable>);
+static_assert(asl::trivially_destructible<MoveableOnly>);
+static_assert(asl::trivially_destructible<Pinned>);
+
+static_assert(asl::same_as<int, asl::un_const_t<int>>);
+static_assert(asl::same_as<int, asl::un_const_t<const int>>);
+static_assert(asl::same_as<const int&, asl::un_const_t<const int&>>);
+
+static_assert(asl::same_as<int, asl::un_volatile_t<int>>);
+static_assert(asl::same_as<int, asl::un_volatile_t<volatile int>>);
+static_assert(asl::same_as<volatile int&, asl::un_volatile_t<volatile int&>>);
+
+static_assert(asl::same_as<int, asl::un_cv_t<int>>);
+static_assert(asl::same_as<int, asl::un_cv_t<const int>>);
+static_assert(asl::same_as<int, asl::un_cv_t<const volatile int>>);
+static_assert(asl::same_as<int, asl::un_cv_t<volatile int>>);
+
+static_assert(asl::is_void<void>);
+static_assert(asl::is_void<const void>);
+static_assert(asl::is_void<const volatile void>);
+static_assert(asl::is_void<volatile void>);
+static_assert(!asl::is_void<int>);
+static_assert(!asl::is_void<Struct>);
+static_assert(!asl::is_void<int&>);
+static_assert(!asl::is_void<int&&>);
+static_assert(!asl::is_void<void()>);
+static_assert(!asl::is_void<void() const &&>);
+
+static_assert(asl::is_ref<int&>);
+static_assert(asl::is_ref<const int&>);
+static_assert(asl::is_ref<const volatile int&>);
+static_assert(asl::is_ref<int&&>);
+static_assert(!asl::is_ref<int>);
+static_assert(!asl::is_ref<void>);
+static_assert(!asl::is_ref<void()>);
+static_assert(!asl::is_ref<void() const &&>);
+
+static_assert(asl::is_ptr<int*>);
+static_assert(asl::is_ptr<const int* const>);
+static_assert(asl::is_ptr<const volatile int*>);
+static_assert(!asl::is_ptr<int>);
+static_assert(!asl::is_ptr<void>);
+static_assert(!asl::is_ptr<void()>);
+static_assert(!asl::is_ptr<void() const &&>);
+
+static_assert(asl::same_as<int, asl::tame_t<int>>);
+static_assert(asl::same_as<int(), asl::tame_t<int()>>);
+static_assert(asl::same_as<int(float), asl::tame_t<int(float)>>);
+static_assert(asl::same_as<int(float), asl::tame_t<int(float) &>>);
+static_assert(asl::same_as<int(float), asl::tame_t<int(float) const &&>>);
+static_assert(asl::same_as<int(float), asl::tame_t<int(float) volatile noexcept>>);
+static_assert(asl::same_as<int(float), asl::tame_t<int(float) && noexcept>>);
+static_assert(asl::same_as<int(float), asl::tame_t<int(float) const>>);
+
+static_assert(asl::is_func<void()>);
+static_assert(asl::is_func<void(int)>);
+static_assert(asl::is_func<void(int, float)>);
+static_assert(asl::is_func<void() &>);
+static_assert(asl::is_func<void() const &&>);
+static_assert(asl::is_func<void() volatile noexcept>);
+static_assert(!asl::is_func<void(*)()>);
+static_assert(!asl::is_func<int>);
+static_assert(!asl::is_func<int&>);
+static_assert(!asl::is_func<void>);
+
+static_assert(asl::is_object<Struct>);
+static_assert(asl::is_object<int>);
+static_assert(asl::is_object<int*>);
+static_assert(asl::is_object<int Struct::*>);
+static_assert(asl::is_object<int (Struct::*)(float)>);
+static_assert(asl::is_object<int[]>);
+static_assert(asl::is_object<int[45]>);
+static_assert(asl::is_object<Enum>);
+static_assert(!asl::is_object<int&>);
+static_assert(!asl::is_object<void>);
+static_assert(!asl::is_object<void(int)>);
+static_assert(!asl::is_object<int(float) const && noexcept>);
+
+static_assert(!asl::is_array<Struct>);
+static_assert(!asl::is_array<int>);
+static_assert(!asl::is_array<int*>);
+static_assert(!asl::is_array<int Struct::*>);
+static_assert(!asl::is_array<int (Struct::*)(float)>);
+static_assert(asl::is_array<int[]>);
+static_assert(asl::is_array<int[45]>);
+static_assert(!asl::is_array<Enum>);
+static_assert(!asl::is_array<int&>);
+static_assert(!asl::is_array<void>);
+static_assert(!asl::is_array<void(int)>);
+static_assert(!asl::is_array<int(float) const && noexcept>);
+
+static_assert(asl::same_as<int, asl::un_ref_t<int>>);
+static_assert(asl::same_as<int, asl::un_ref_t<int&>>);
+static_assert(asl::same_as<int, asl::un_ref_t<int&&>>);
+static_assert(asl::same_as<int() &, asl::un_ref_t<int() &>>);
+
+static_assert(asl::types_count<int, float> == 2);
+static_assert(asl::types_count<int, int> == 2);
+static_assert(asl::types_count<int> == 1);
+static_assert(asl::types_count<> == 0);
+
+class Base {};
+class Derived : public Base {};
+class C {};
+class D { public: operator C() { return c; } C c; }; // NOLINT
+class E { public: template<class T> E(T&&) {} }; // NOLINT
+
+static_assert(asl::convertible_from<Base*, Derived*>);
+static_assert(!asl::convertible_from<Derived*, Base*>);
+static_assert(asl::convertible_from<C, D>);
+static_assert(!asl::convertible_from<C*, Derived*>);
+static_assert(asl::convertible_from<E, Base>);
+
+static_assert(!asl::convertible_from<int16_t(&)[], int32_t(&)[]>);
+static_assert(asl::convertible_from<const int16_t(&)[], int16_t(&)[]>);
+static_assert(asl::convertible_from<const int16_t(&)[], const int16_t(&)[]>);
+static_assert(asl::convertible_from<int16_t(&)[], int16_t(&)[]>);
+static_assert(!asl::convertible_from<int32_t(&)[], int16_t(&)[]>);
+static_assert(!asl::convertible_from<int16_t(&)[], const int16_t(&)[]>);
+static_assert(!asl::convertible_from<C(&)[], D(&)[]>);
+
+static_assert(asl::derived_from<Derived, Base>);
+static_assert(!asl::derived_from<Base, Derived>);
+static_assert(!asl::derived_from<D, C>);
+static_assert(!asl::derived_from<C, D>);
+static_assert(!asl::derived_from<uint8_t, uint16_t>);
+static_assert(!asl::derived_from<uint16_t, uint8_t>);
+static_assert(!asl::derived_from<int, int>);
+
+static_assert(!asl::is_const<int>);
+static_assert(asl::is_const<const int>);
+static_assert(!asl::is_const<const int*>);
+static_assert(asl::is_const<int* const>);
+
+static_assert(asl::is_floating_point<float>);
+static_assert(asl::is_floating_point<const float>);
+static_assert(asl::is_floating_point<volatile double>);
+static_assert(!asl::is_floating_point<const float&>);
+static_assert(!asl::is_floating_point<int>);
+static_assert(!asl::is_floating_point<C>);
+
+static_assert(asl::uniquely_represented<int>);
+static_assert(asl::uniquely_represented<uint128_t>);
+static_assert(!asl::uniquely_represented<bool>);
+
+enum Enum1 {};
+enum class Enum2 {};
+
+static_assert(asl::uniquely_represented<Enum1>);
+static_assert(asl::uniquely_represented<Enum2>);
+
+static_assert(!asl::is_enum<int>);
+static_assert(asl::is_enum<Enum1>);
+static_assert(asl::is_enum<Enum2>);
+
+static_assert(asl::derefs_as<int, int>);
+static_assert(asl::derefs_as<int*, int>);
+static_assert(asl::derefs_as<int&, int>);
+static_assert(asl::derefs_as<asl::box<int>, int>);
+
+static_assert(asl::derefs_as<Derived, Base>);
+static_assert(asl::derefs_as<Derived*, Base>);
+static_assert(asl::derefs_as<Derived&, Base>);
+static_assert(asl::derefs_as<asl::box<Derived>, Base>);
+
+static void wants_int(int) {}
+static void wants_base(Base&) {}
+static void wants_base_ptr(Base*) {}
+
+ASL_TEST(deref)
+{
+    int a = 4;
+    auto b = asl::make_box<int>(5);
+
+    wants_int(asl::deref<int>(5));
+    wants_int(asl::deref<int>(a));
+    wants_int(asl::deref<int>(&a));
+    wants_int(asl::deref<int>(b));
+
+    Derived c{};
+    auto d = asl::make_box<Derived>();
+
+    wants_base(asl::deref<Base>(Derived{}));
+    wants_base(asl::deref<Base>(c));
+    wants_base(asl::deref<Base>(&c));
+    wants_base(asl::deref<Base>(d));
+
+    wants_base_ptr(&asl::deref<Base>(Derived{}));
+    wants_base_ptr(&asl::deref<Base>(c));
+    wants_base_ptr(&asl::deref<Base>(&c));
+    wants_base_ptr(&asl::deref<Base>(d));
+}
+