diff options
author | Andy Belle-Isle <drumsetmonkey@gmail.com> | 2019-08-30 00:45:36 -0400 |
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committer | Andy Belle-Isle <drumsetmonkey@gmail.com> | 2019-08-30 00:45:36 -0400 |
commit | dc2493e7525bb7633f697ef10f72b72b46222249 (patch) | |
tree | 9816755219e65d3f47fdce81c78f3736a7ddb8ab /lib/sol2/include/sol/stack_check_get_qualified.hpp | |
parent | 9d2b31797d0cfd130802b69261df2cd402e39b49 (diff) |
Forget what I said, I just need to change git attributes to mark for vendor
Diffstat (limited to 'lib/sol2/include/sol/stack_check_get_qualified.hpp')
-rw-r--r-- | lib/sol2/include/sol/stack_check_get_qualified.hpp | 82 |
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 |