From 19fcec84d8d7d21e796c7624e521b60d28ee21ed Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:45:59 +0200
Subject: Adding upstream version 16.2.11+ds.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/boost/libs/hana/test/functional/apply.cpp | 262 ++++++++++++++++++++++++++
 1 file changed, 262 insertions(+)
 create mode 100644 src/boost/libs/hana/test/functional/apply.cpp

(limited to 'src/boost/libs/hana/test/functional/apply.cpp')

diff --git a/src/boost/libs/hana/test/functional/apply.cpp b/src/boost/libs/hana/test/functional/apply.cpp
new file mode 100644
index 000000000..ff1c81cf9
--- /dev/null
+++ b/src/boost/libs/hana/test/functional/apply.cpp
@@ -0,0 +1,262 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/assert.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/functional/apply.hpp>
+
+#include <laws/base.hpp>
+#include <support/tracked.hpp>
+
+#include <type_traits>
+#include <utility>
+namespace hana = boost::hana;
+
+
+template <int i = 0>
+struct nonpod : Tracked {
+    nonpod() : Tracked{i} { }
+};
+
+struct NonCopyable {
+    NonCopyable() = default;
+    NonCopyable(NonCopyable const&) = delete;
+    NonCopyable& operator=(NonCopyable const&) = delete;
+};
+
+struct TestClass {
+    explicit TestClass(int x) : data(x) { }
+    TestClass(TestClass const&) = delete;
+    TestClass& operator=(TestClass const&) = delete;
+
+    int& operator()(NonCopyable&&) & { return data; }
+    int const& operator()(NonCopyable&&) const & { return data; }
+    int volatile& operator()(NonCopyable&&) volatile & { return data; }
+    int const volatile& operator()(NonCopyable&&) const volatile & { return data; }
+
+    int&& operator()(NonCopyable&&) && { return std::move(data); }
+    int const&& operator()(NonCopyable&&) const && { return std::move(data); }
+    int volatile&& operator()(NonCopyable&&) volatile && { return std::move(data); }
+    int const volatile&& operator()(NonCopyable&&) const volatile && { return std::move(data); }
+
+    int data;
+};
+
+struct DerivedFromTestClass : TestClass {
+    explicit DerivedFromTestClass(int x) : TestClass(x) { }
+};
+
+
+template <typename Signature,  typename Expect, typename Functor>
+void test_b12(Functor&& f) {
+    // Create the callable object.
+    using ClassFunc = Signature TestClass::*;
+    ClassFunc func_ptr = &TestClass::operator();
+
+    // Create the dummy arg.
+    NonCopyable arg;
+
+    // Check that the deduced return type of invoke is what is expected.
+    using DeducedReturnType = decltype(
+        hana::apply(func_ptr, std::forward<Functor>(f), std::move(arg))
+    );
+    static_assert(std::is_same<DeducedReturnType, Expect>::value, "");
+
+    // Check that result_of_t matches Expect.
+    using ResultOfReturnType = typename std::result_of<ClassFunc&&(Functor&&, NonCopyable&&)>::type;
+    static_assert(std::is_same<ResultOfReturnType, Expect>::value, "");
+
+    // Run invoke and check the return value.
+    DeducedReturnType ret = hana::apply(func_ptr, std::forward<Functor>(f), std::move(arg));
+    BOOST_HANA_RUNTIME_CHECK(ret == 42);
+}
+
+template <typename Expect, typename Functor>
+void test_b34(Functor&& f) {
+    // Create the callable object.
+    using ClassFunc = int TestClass::*;
+    ClassFunc func_ptr = &TestClass::data;
+
+    // Check that the deduced return type of invoke is what is expected.
+    using DeducedReturnType = decltype(
+        hana::apply(func_ptr, std::forward<Functor>(f))
+    );
+    static_assert(std::is_same<DeducedReturnType, Expect>::value, "");
+
+    // Check that result_of_t matches Expect.
+    using ResultOfReturnType = typename std::result_of<ClassFunc&&(Functor&&)>::type;
+    static_assert(std::is_same<ResultOfReturnType, Expect>::value, "");
+
+    // Run invoke and check the return value.
+    DeducedReturnType ret = hana::apply(func_ptr, std::forward<Functor>(f));
+    BOOST_HANA_RUNTIME_CHECK(ret == 42);
+}
+
+template <typename Expect, typename Functor>
+void test_b5(Functor&& f) {
+    NonCopyable arg;
+
+    // Check that the deduced return type of invoke is what is expected.
+    using DeducedReturnType = decltype(
+        hana::apply(std::forward<Functor>(f), std::move(arg))
+    );
+    static_assert(std::is_same<DeducedReturnType, Expect>::value, "");
+
+    // Check that result_of_t matches Expect.
+    using ResultOfReturnType = typename std::result_of<Functor&&(NonCopyable&&)>::type;
+    static_assert(std::is_same<ResultOfReturnType, Expect>::value, "");
+
+    // Run invoke and check the return value.
+    DeducedReturnType ret = hana::apply(std::forward<Functor>(f), std::move(arg));
+    BOOST_HANA_RUNTIME_CHECK(ret == 42);
+}
+
+int& foo(NonCopyable&&) {
+    static int data = 42;
+    return data;
+}
+
+int main() {
+    // Test normal usage with a function object
+    {
+        hana::test::_injection<0> f{};
+        using hana::test::ct_eq;
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::apply(f),
+            f()
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::apply(f, ct_eq<0>{}),
+            f(ct_eq<0>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::apply(f, ct_eq<0>{}, ct_eq<1>{}),
+            f(ct_eq<0>{}, ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::apply(f, ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
+            f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::apply(f, ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+            f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+
+        // Make sure we can use apply with non-PODs
+        hana::apply(f, nonpod<>{});
+    }
+
+    // Bullets 1 & 2 in the standard
+    {
+        TestClass cl(42);
+        test_b12<int&(NonCopyable&&) &, int&>(cl);
+        test_b12<int const&(NonCopyable&&) const &, int const&>(cl);
+        test_b12<int volatile&(NonCopyable&&) volatile &, int volatile&>(cl);
+        test_b12<int const volatile&(NonCopyable&&) const volatile &, int const volatile&>(cl);
+
+        test_b12<int&&(NonCopyable&&) &&, int&&>(std::move(cl));
+        test_b12<int const&&(NonCopyable&&) const &&, int const&&>(std::move(cl));
+        test_b12<int volatile&&(NonCopyable&&) volatile &&, int volatile&&>(std::move(cl));
+        test_b12<int const volatile&&(NonCopyable&&) const volatile &&, int const volatile&&>(std::move(cl));
+    }
+    {
+        DerivedFromTestClass cl(42);
+        test_b12<int&(NonCopyable&&) &, int&>(cl);
+        test_b12<int const&(NonCopyable&&) const &, int const&>(cl);
+        test_b12<int volatile&(NonCopyable&&) volatile &, int volatile&>(cl);
+        test_b12<int const volatile&(NonCopyable&&) const volatile &, int const volatile&>(cl);
+
+        test_b12<int&&(NonCopyable&&) &&, int&&>(std::move(cl));
+        test_b12<int const&&(NonCopyable&&) const &&, int const&&>(std::move(cl));
+        test_b12<int volatile&&(NonCopyable&&) volatile &&, int volatile&&>(std::move(cl));
+        test_b12<int const volatile&&(NonCopyable&&) const volatile &&, int const volatile&&>(std::move(cl));
+    }
+    {
+        TestClass cl_obj(42);
+        TestClass *cl = &cl_obj;
+        test_b12<int&(NonCopyable&&) &, int&>(cl);
+        test_b12<int const&(NonCopyable&&) const &, int const&>(cl);
+        test_b12<int volatile&(NonCopyable&&) volatile &, int volatile&>(cl);
+        test_b12<int const volatile&(NonCopyable&&) const volatile &, int const volatile&>(cl);
+    }
+    {
+        DerivedFromTestClass cl_obj(42);
+        DerivedFromTestClass *cl = &cl_obj;
+        test_b12<int&(NonCopyable&&) &, int&>(cl);
+        test_b12<int const&(NonCopyable&&) const &, int const&>(cl);
+        test_b12<int volatile&(NonCopyable&&) volatile &, int volatile&>(cl);
+        test_b12<int const volatile&(NonCopyable&&) const volatile &, int const volatile&>(cl);
+    }
+
+    // Bullets 3 & 4 in the standard
+    {
+        using Fn = TestClass;
+        Fn cl(42);
+        test_b34<int&>(cl);
+        test_b34<int const&>(static_cast<Fn const&>(cl));
+        test_b34<int volatile&>(static_cast<Fn volatile&>(cl));
+        test_b34<int const volatile&>(static_cast<Fn const volatile &>(cl));
+
+        test_b34<int&&>(static_cast<Fn &&>(cl));
+        test_b34<int const&&>(static_cast<Fn const&&>(cl));
+        test_b34<int volatile&&>(static_cast<Fn volatile&&>(cl));
+        test_b34<int const volatile&&>(static_cast<Fn const volatile&&>(cl));
+    }
+    {
+        using Fn = DerivedFromTestClass;
+        Fn cl(42);
+        test_b34<int&>(cl);
+        test_b34<int const&>(static_cast<Fn const&>(cl));
+        test_b34<int volatile&>(static_cast<Fn volatile&>(cl));
+        test_b34<int const volatile&>(static_cast<Fn const volatile &>(cl));
+
+        test_b34<int&&>(static_cast<Fn &&>(cl));
+        test_b34<int const&&>(static_cast<Fn const&&>(cl));
+        test_b34<int volatile&&>(static_cast<Fn volatile&&>(cl));
+        test_b34<int const volatile&&>(static_cast<Fn const volatile&&>(cl));
+    }
+    {
+        using Fn = TestClass;
+        Fn cl_obj(42);
+        Fn* cl = &cl_obj;
+        test_b34<int&>(cl);
+        test_b34<int const&>(static_cast<Fn const*>(cl));
+        test_b34<int volatile&>(static_cast<Fn volatile*>(cl));
+        test_b34<int const volatile&>(static_cast<Fn const volatile *>(cl));
+    }
+    {
+        using Fn = DerivedFromTestClass;
+        Fn cl_obj(42);
+        Fn* cl = &cl_obj;
+        test_b34<int&>(cl);
+        test_b34<int const&>(static_cast<Fn const*>(cl));
+        test_b34<int volatile&>(static_cast<Fn volatile*>(cl));
+        test_b34<int const volatile&>(static_cast<Fn const volatile *>(cl));
+    }
+
+    // Bullet 5 in the standard
+    using FooType = int&(NonCopyable&&);
+    {
+        FooType& fn = foo;
+        test_b5<int &>(fn);
+    }
+    {
+        FooType* fn = foo;
+        test_b5<int &>(fn);
+    }
+    {
+        using Fn = TestClass;
+        Fn cl(42);
+        test_b5<int&>(cl);
+        test_b5<int const&>(static_cast<Fn const&>(cl));
+        test_b5<int volatile&>(static_cast<Fn volatile&>(cl));
+        test_b5<int const volatile&>(static_cast<Fn const volatile &>(cl));
+
+        test_b5<int&&>(static_cast<Fn &&>(cl));
+        test_b5<int const&&>(static_cast<Fn const&&>(cl));
+        test_b5<int volatile&&>(static_cast<Fn volatile&&>(cl));
+        test_b5<int const volatile&&>(static_cast<Fn const volatile&&>(cl));
+    }
+}
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