BlackMATov/meta.hpp
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rewrite uvalue without variant

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BlackMATov
2023-01-20 04:41:02 +07:00
parent ad133deebc
commit 544dcd3a9f
6 changed files with 659 additions and 315 deletions
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144
develop/untests/meta_utilities/value_tests.cpp
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@@ -42,8 +42,8 @@ namespace
ivec2& operator=(ivec2&& other) = delete;
ivec2& operator=(const ivec2& other) = delete;
public:
static int move_constructor_counter;
static int copy_constructor_counter;
inline static int move_constructor_counter{};
inline static int copy_constructor_counter{};
};
struct ivec3 {
@@ -57,8 +57,43 @@ namespace
ivec3(int nx, int ny, int nz): x{nx}, y{ny}, z{nz} {}
};
int ivec2::move_constructor_counter{0};
int ivec2::copy_constructor_counter{0};
struct ivec2_big {
int x{};
int y{};
int dummy[42]{};
ivec2_big() = delete;
explicit ivec2_big(int nv): x{nv}, y{nv} {}
ivec2_big(int nx, int ny): x{nx}, y{ny} {}
ivec2_big(ivec2_big&& other) noexcept
: x{other.x}
, y{other.y} {
other.x = 0;
other.y = 0;
++move_constructor_counter;
}
ivec2_big(const ivec2_big& other) noexcept
: x{other.x}
, y{other.y} {
++copy_constructor_counter;
}
ivec2_big& add(const ivec2_big& other) {
x += other.x;
y += other.y;
return *this;
}
ivec2_big& operator=(ivec2_big&& other) = delete;
ivec2_big& operator=(const ivec2_big& other) = delete;
public:
inline static int move_constructor_counter{};
inline static int copy_constructor_counter{};
};
ivec2 iadd2(ivec2 l, ivec2 r) {
return {l.x + r.x, l.y + r.y};
@@ -67,6 +102,10 @@ namespace
bool operator==(const ivec2& l, const ivec2& r) noexcept {
return l.x == r.x && l.y == r.y;
}
bool operator==(const ivec2_big& l, const ivec2_big& r) noexcept {
return l.x == r.x && l.y == r.y;
}
}
TEST_CASE("meta/meta_utilities/value/_") {
@@ -96,6 +135,8 @@ TEST_CASE("meta/meta_utilities/value") {
ivec2::move_constructor_counter = 0;
ivec2::copy_constructor_counter = 0;
ivec2_big::move_constructor_counter = 0;
ivec2_big::copy_constructor_counter = 0;
SUBCASE("cast types") {
static_assert(std::is_same_v<
@@ -339,7 +380,7 @@ TEST_CASE("meta/meta_utilities/value") {
val_dst = std::move(val_src2);
CHECK(val_dst.get_as<ivec2>() == ivec2{1,2});
CHECK(ivec2::move_constructor_counter == 3);
CHECK(ivec2::move_constructor_counter == 2);
CHECK(ivec2::copy_constructor_counter == 0);
}
@@ -358,14 +399,14 @@ TEST_CASE("meta/meta_utilities/value") {
val_dst = val_src2;
CHECK(val_dst.get_as<ivec2>() == ivec2{1,2});
CHECK(ivec2::move_constructor_counter == 2);
CHECK(ivec2::move_constructor_counter == 1);
CHECK(ivec2::copy_constructor_counter == 1);
CHECK(val_src2.get_as<ivec2>() == ivec2{1,2});
CHECK(val_src2.get_data() != val_dst.get_data());
}
SUBCASE("swap") {
SUBCASE("swap/0") {
meta::uvalue val1{"world"s};
meta::uvalue val2{ivec2{1,2}};
CHECK(ivec2::move_constructor_counter == 1);
@@ -382,6 +423,95 @@ TEST_CASE("meta/meta_utilities/value") {
CHECK(val2.get_as<ivec2>() == ivec2{1,2});
}
SUBCASE("swap/1") {
meta::uvalue val1{42};
meta::uvalue val2{};
swap(val1, val2);
CHECK_FALSE(val1);
CHECK(val2.get_as<int>() == 42);
swap(val1, val2);
CHECK(val1.get_as<int>() == 42);
CHECK_FALSE(val2);
}
SUBCASE("swap/2") {
meta::uvalue val1{ivec2{1,2}};
meta::uvalue val2{};
CHECK(ivec2::move_constructor_counter == 1);
CHECK(ivec2::copy_constructor_counter == 0);
swap(val1, val2);
CHECK_FALSE(val1);
CHECK(val2.get_as<ivec2>() == ivec2{1,2});
CHECK(ivec2::move_constructor_counter == 2);
CHECK(ivec2::copy_constructor_counter == 0);
swap(val1, val2);
CHECK(val1.get_as<ivec2>() == ivec2{1,2});
CHECK_FALSE(val2);
CHECK(ivec2::move_constructor_counter == 3);
CHECK(ivec2::copy_constructor_counter == 0);
}
SUBCASE("swap/3") {
meta::uvalue val1{ivec2_big{1,2}};
meta::uvalue val2{};
CHECK(ivec2_big::move_constructor_counter == 1);
CHECK(ivec2_big::copy_constructor_counter == 0);
swap(val1, val2);
CHECK_FALSE(val1);
CHECK(val2.get_as<ivec2_big>() == ivec2_big{1,2});
CHECK(ivec2_big::move_constructor_counter == 1);
CHECK(ivec2_big::copy_constructor_counter == 0);
swap(val1, val2);
CHECK(val1.get_as<ivec2_big>() == ivec2_big{1,2});
CHECK_FALSE(val2);
CHECK(ivec2_big::move_constructor_counter == 1);
CHECK(ivec2_big::copy_constructor_counter == 0);
}
SUBCASE("after_move") {
{
meta::uvalue val1{42};
meta::uvalue val2{std::move(val1)};
CHECK_FALSE(val1);
CHECK(val2.get_as<int>() == 42);
val1 = std::move(val2);
CHECK_FALSE(val2);
CHECK(val1.get_as<int>() == 42);
}
{
meta::uvalue val1{ivec2{1,2}};
meta::uvalue val2{std::move(val1)};
CHECK_FALSE(val1);
CHECK(val2);
CHECK(val2.get_as<ivec2>() == ivec2{1,2});
val1 = std::move(val2);
CHECK_FALSE(val2);
CHECK(val1.get_as<ivec2>() == ivec2{1,2});
}
{
meta::uvalue val1{ivec2_big{1,2}};
meta::uvalue val2{std::move(val1)};
CHECK_FALSE(val1);
CHECK(val2);
CHECK(val2.get_as<ivec2_big>() == ivec2_big{1,2});
val1 = std::move(val2);
CHECK_FALSE(val2);
CHECK(val1.get_as<ivec2_big>() == ivec2_big{1,2});
}
}
SUBCASE("unmap") {
{
const meta::uvalue u{42};