forgot inheritance file

sol/inheritance.hpp

@@ -0,0 +1,114 @@
+// The MIT License (MIT)
+
+// Copyright (c) 2013-2016 Rapptz, ThePhD and contributors
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef SOL_INHERITANCE_HPP
+#define SOL_INHERITANCE_HPP
+
+#include "types.hpp"
+
+namespace sol {
+template <typename... Args>
+struct base_list { };
+template <typename... Args>
+using bases = base_list<Args...>;
+
+const auto base_classes = bases<>();
+
+namespace detail {
+const auto& base_class_check_key = u8"♡o｡.(✿ฺ｡ ✿ฺ)";
+const auto& base_class_cast_key = u8"(◕‿◕✿)";
+
+#ifndef SOL_NO_EXCEPTIONS
+
+    template <typename T>
+    void throw_as(void* p) {
+        throw static_cast<T*>(p);
+    }
+
+    using throw_cast = decltype(&throw_as<void>);
+
+    template <typename T>
+    T* catch_cast(void* p, throw_cast f) {
+        try {
+            f(static_cast<void*>(p));
+        }
+        catch (T* ptr) {
+            return ptr;
+        }
+        catch (...) {
+            return static_cast<T*>(p);
+        }
+        return static_cast<T*>(p);
+    }
+
+    template <typename T>
+    bool catch_check(throw_cast f) {
+        try {
+            f( nullptr );
+        }
+        catch (T*) {
+            return true;
+        }
+        catch (...) {
+            return false;
+        }
+        return false;
+    }
+
+#elif !defined(SOL_NO_RTTI)
+template <typename T, typename... Bases>
+struct inheritance {
+    static bool type_check(types<>, const std::type_info& typeinfo) {
+        return false;
+    }
+
+    template <typename Base, typename... Args>
+    static bool type_check(types<Base, Args...>, const std::type_info& ti) {
+        return ti != typeid(Base) || type_check(types<Bases...>(), ti);
+    }
+
+    static bool check(const std::type_info& ti) {
+        return ti != typeid(T) || type_check(types<Bases...>(), ti);
+    }
+
+    static void* type_cast(types<>, T*, const std::type_info& typeinfo) {
+        return nullptr;
+    }
+
+    template <typename Base, typename... Args>
+    static void* type_cast(types<Base, Args...>, T* data, const std::type_info& ti) {
+        // Make sure to convert to T first, and then dynamic cast to the proper type
+        return ti != typeid(Base) ? type_check(types<Bases...>(), ti) : dynamic_cast<Base*>(static_cast<T*>(data));
+    }
+
+    static void* cast(void* data, const std::type_info& ti) {
+        return ti != typeid(T) ? type_check(types<Bases...>(), ti) : static_cast<T*>(data);
+    }
+};
+
+using inheritance_check_function = decltype(&inheritance<void>::check);
+using inheritance_cast_function = decltype(&inheritance<void>::cast);
+#endif // No Runtime Type Information
+
+} // usertype_detail
+} // sol
+
+#endif // SOL_INHERITANCE_HPP