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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/vespalib/util/traits.h>
#include <vespa/vespalib/util/arrayqueue.hpp>
#include <concepts>
using namespace vespalib;
struct Simple {
int value;
int moved;
explicit Simple(int v) : value(v), moved(0) {}
Simple(const Simple &rhs) : value(rhs.value), moved(rhs.moved) {}
Simple(Simple &&rhs) : value(rhs.value), moved(rhs.moved + 1) {}
};
using Hard = std::unique_ptr<Simple>;
struct Base {
virtual void foo() = 0;
virtual ~Base() {}
};
struct Child1 : Base {
void foo() override {}
};
struct Child2 : Base {
void foo() override {}
};
VESPA_CAN_SKIP_DESTRUCTION(Child2);
TEST("require that copy ctor detection works") {
EXPECT_EQUAL(std::copy_constructible<Simple>, true);
EXPECT_EQUAL(std::copy_constructible<Hard>, false);
EXPECT_EQUAL(std::copy_constructible<ArrayQueue<Simple> >, true);
EXPECT_EQUAL(std::copy_constructible<ArrayQueue<Hard> >, false);
EXPECT_EQUAL(std::copy_constructible<std::unique_ptr<Hard> >, false);
}
TEST("require that can_skip_destruction works") {
EXPECT_EQUAL(can_skip_destruction<Simple>, true);
EXPECT_EQUAL(can_skip_destruction<Hard>, false);
EXPECT_EQUAL(can_skip_destruction<Child1>, false);
EXPECT_EQUAL(can_skip_destruction<Child2>, true);
}
struct NoType {};
struct TypeType { using type = NoType; };
struct NoTypeType { static constexpr int type = 3; };
TEST("require that type type member can be detected") {
EXPECT_FALSE(has_type_type<NoType>);
EXPECT_TRUE(has_type_type<TypeType>);
EXPECT_FALSE(has_type_type<NoTypeType>);
}
TEST_MAIN() { TEST_RUN_ALL(); }
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