tipc: fix compilation issues with core serialization routines

libraries/libstratosphere/include/stratosphere/tipc/tipc_out.hpp

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#include <stratosphere/tipc/tipc_common.hpp>
+#include <stratosphere/tipc/tipc_pointer_and_size.hpp>
+
+namespace ams::tipc {
+
+    namespace impl {
+
+        struct OutBaseTag{};
+
+    }
+
+    template<typename>
+    struct IsOutForceEnabled : public std::false_type{};
+
+    template<>
+    struct IsOutForceEnabled<::ams::Result> : public std::true_type{};
+
+    template<typename T>
+    concept OutEnabled = (std::is_trivial<T>::value || IsOutForceEnabled<T>::value) && !std::is_pointer<T>::value;
+
+    template<typename T>
+    class Out : public impl::OutBaseTag {
+        static_assert(OutEnabled<T>);
+        public:
+            static constexpr size_t TypeSize = sizeof(T);
+        private:
+            T *ptr;
+        public:
+            constexpr Out(uintptr_t p) : ptr(reinterpret_cast<T *>(p)) { /* ... */ }
+            constexpr Out(T *p) : ptr(p) { /* ... */ }
+            constexpr Out(const tipc::PointerAndSize &pas) : ptr(reinterpret_cast<T *>(pas.GetAddress())) { /* TODO: Is AMS_ABORT_UNLESS(pas.GetSize() >= sizeof(T)); necessary? */ }
+
+            ALWAYS_INLINE void SetValue(const T& value) const {
+                *this->ptr = value;
+            }
+
+            ALWAYS_INLINE const T &GetValue() const {
+                return *this->ptr;
+            }
+
+            ALWAYS_INLINE T *GetPointer() const {
+                return this->ptr;
+            }
+
+            /* Convenience operators. */
+            ALWAYS_INLINE T &operator*() const {
+                return *this->ptr;
+            }
+
+            ALWAYS_INLINE T *operator->() const {
+                return this->ptr;
+            }
+    };
+
+    template<typename T>
+    class Out<T *> {
+        static_assert(!std::is_same<T, T>::value, "Invalid tipc::Out<T> (Raw Pointer)");
+    };
+
+}