Started creating scripting library/namespace and added sol2 for interfacing

1 files changed, 82 insertions, 0 deletions

diff --git a/lib/sol2/include/sol/stack_check_get_qualified.hpp b/lib/sol2/include/sol/stack_check_get_qualified.hpp
new file mode 100644
index 0000000..89e9238
--- /dev/null
+++ b/lib/sol2/include/sol/stack_check_get_qualified.hpp
@@ -0,0 +1,82 @@
+// sol3
+
+// The MIT License (MIT)
+
+// Copyright (c) 2013-2019 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_STACK_CHECK_QUALIFIED_GET_HPP
+#define SOL_STACK_CHECK_QUALIFIED_GET_HPP
+
+#include "stack_core.hpp"
+#include "stack_check_get_unqualified.hpp"
+#include "optional.hpp"
+
+namespace sol { namespace stack {
+	template <typename T, typename C>
+	struct qualified_check_getter {
+		typedef decltype(stack_detail::unchecked_get<T>(nullptr, -1, std::declval<record&>())) R;
+
+		template <typename Handler>
+		static optional<R> get(lua_State* L, int index, Handler&& handler, record& tracking) {
+			if constexpr (is_lua_reference_v<T>) {
+				// actually check if it's none here, otherwise
+				// we'll have a none object inside an optional!
+				bool success = lua_isnoneornil(L, index) == 0 && stack::check<T>(L, index, no_panic);
+				if (!success) {
+					// expected type, actual type
+					tracking.use(static_cast<int>(success));
+					handler(L, index, type::poly, type_of(L, index), "");
+					return nullopt;
+				}
+				return stack_detail::unchecked_get<T>(L, index, tracking);
+			}
+			else {
+				if (!check<T>(L, index, std::forward<Handler>(handler))) {
+					tracking.use(static_cast<int>(!lua_isnone(L, index)));
+					return nullopt;
+				}
+				return stack_detail::unchecked_get<T>(L, index, tracking);
+			}
+		}
+	};
+
+	template <typename T>
+	struct qualified_getter<optional<T>> {
+		static decltype(auto) get(lua_State* L, int index, record& tracking) {
+			return check_get<T>(L, index, no_panic, tracking);
+		}
+	};
+
+#if defined(SOL_CXX17_FEATURES) && SOL_CXX17_FEATURES
+	template <typename T>
+	struct qualified_getter<std::optional<T>> {
+		static std::optional<T> get(lua_State* L, int index, record& tracking) {
+			if (!check<T>(L, index, no_panic)) {
+				tracking.use(static_cast<int>(!lua_isnone(L, index)));
+				return std::nullopt;
+			}
+			return stack_detail::unchecked_get<T>(L, index, tracking);
+		}
+	};
+#endif // C++17 features
+
+}} // namespace sol::stack
+
+#endif // SOL_STACK_CHECK_QUALIFIED_GET_HPP