Stratosphere: Add WrapIpcCommandImpl templating.

stratosphere/loader/include/boost/callable_traits/args.hpp

@@ -0,0 +1,97 @@
+/*
+
+@Copyright Barrett Adair 2015-2017
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+*/
+
+#ifndef BOOST_CLBL_TRTS_ARGS_HPP
+#define BOOST_CLBL_TRTS_ARGS_HPP
+
+#include <boost/callable_traits/detail/core.hpp>
+
+namespace boost { namespace callable_traits {
+
+//[ args_hpp
+/*`[section:ref_args args]
+[heading Header]
+``#include <boost/callable_traits/args.hpp>``
+[heading Definition]
+*/
+
+template<typename T, template<class...> class Container = std::tuple>
+using args_t = //see below
+//<-
+    detail::try_but_fail_if_invalid<
+        typename detail::traits<
+            detail::shallow_decay<T>>::template expand_args<Container>,
+        cannot_expand_the_parameter_list_of_first_template_argument>;
+
+namespace detail {
+
+    template<typename T, template<class...> class Container,
+        typename = std::false_type>
+    struct args_impl {};
+
+    template<typename T, template<class...> class Container>
+    struct args_impl <T, Container, typename std::is_same<
+        args_t<T, Container>, detail::dummy>::type>
+    {
+        using type = args_t<T, Container>;
+    };
+}
+
+//->
+
+template<typename T,
+    template<class...> class Container = std::tuple>
+struct args : detail::args_impl<T, Container> {};
+
+//<-
+}} // namespace boost::callable_traits
+//->
+
+/*`
+[heading Constraints]
+* `T` must be one of the following:
+  * function
+  * function pointer
+  * function reference
+  * member function pointer
+  * member data pointer
+  * user-defined type with a non-overloaded `operator()`
+  * type of a non-generic lambda
+
+[heading Behavior]
+* When the constraints are violated, a substitution failure occurs.
+* When `T` is a function, function pointer, or function reference, the aliased type is `Container` instantiated with the function's parameter types.
+* When `T` is a function object, the aliased type is `Container` instantiated with the `T::operator()` parameter types.
+* When `T` is a member function pointer, the aliased type is a `Container` instantiation, where the first type argument is a reference to the parent class of `T`, qualified according to the member qualifiers on `T`, such that the first type is equivalent to `boost::callable_traits::qualified_class_of_t<T>`. The subsequent type arguments, if any, are the parameter types of the member function.
+* When `T` is a member data pointer, the aliased type is `Container` with a single element, which is a `const` reference to the parent class of `T`.
+
+[heading Input/Output Examples]
+[table
+    [[`T`]                              [`args_t<T>`]]
+    [[`void(float, char, int)`]         [`std::tuple<float, char, int>`]]
+    [[`void(*)(float, char, int)`]      [`std::tuple<float, char, int`]]
+    [[`void(&)(float, char, int)`]      [`std::tuple<float, char, int`]]
+    [[`void(float, char, int) const &&`][`std::tuple<float, char, int>`]]
+    [[`void(*)()`]                      [`std::tuple<>`]]
+    [[`void(foo::* const &)(float, char, int)`] [`std::tuple<foo&, float, char, int>`]]
+    [[`int(foo::*)(int) const`]         [`std::tuple<const foo&, int>`]]
+    [[`void(foo::*)() volatile &&`]     [`std::tuple<volatile foo &&>`]]
+    [[`int foo::*`]                     [`std::tuple<const foo&>`]]
+    [[`const int foo::*`]               [`std::tuple<const foo&>`]]
+    [[`int`]                            [(substitution failure)]]
+    [[`int (*const)()`]                 [(substitution failure)]]
+]
+
+[heading Example Program]
+[import ../example/args.cpp]
+[args]
+[endsect]
+*/
+//]
+
+#endif // #ifndef BOOST_CLBL_TRTS_ARGS_HPP