diff options
Diffstat (limited to '3rdparty/sol2/sol/stack_check_get.hpp')
-rw-r--r-- | 3rdparty/sol2/sol/stack_check_get.hpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/3rdparty/sol2/sol/stack_check_get.hpp b/3rdparty/sol2/sol/stack_check_get.hpp new file mode 100644 index 00000000000..728d7d9a448 --- /dev/null +++ b/3rdparty/sol2/sol/stack_check_get.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_STACK_CHECK_GET_HPP +#define SOL_STACK_CHECK_GET_HPP + +#include "stack_core.hpp" +#include "stack_get.hpp" +#include "stack_check.hpp" +#include "optional.hpp" + +namespace sol { + namespace stack { + template <typename T, typename> + struct check_getter { + typedef decltype(stack_detail::unchecked_get<T>(nullptr, 0, std::declval<record&>())) R; + + template <typename Handler> + static optional<R> get(lua_State* L, int index, Handler&& handler, record& tracking) { + 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 check_getter<optional<T>> { + template <typename Handler> + static decltype(auto) get(lua_State* L, int index, Handler&&, record& tracking) { + return check_get<T>(L, index, no_panic, tracking); + } + }; + + template <typename T> + struct check_getter<T, std::enable_if_t<std::is_integral<T>::value && lua_type_of<T>::value == type::number>> { + template <typename Handler> + static optional<T> get(lua_State* L, int index, Handler&& handler, record& tracking) { + int isnum = 0; + lua_Integer value = lua_tointegerx(L, index, &isnum); + if (isnum == 0) { + type t = type_of(L, index); + tracking.use(static_cast<int>(t != type::none)); + handler(L, index, type::number, t); + return nullopt; + } + tracking.use(1); + return static_cast<T>(value); + } + }; + + template <typename T> + struct check_getter<T, std::enable_if_t<std::is_enum<T>::value && !meta::any_same<T, meta_function, type>::value>> { + template <typename Handler> + static optional<T> get(lua_State* L, int index, Handler&& handler, record& tracking) { + int isnum = 0; + lua_Integer value = lua_tointegerx(L, index, &isnum); + if (isnum == 0) { + type t = type_of(L, index); + tracking.use(static_cast<int>(t != type::none)); + handler(L, index, type::number, t); + return nullopt; + } + tracking.use(1); + return static_cast<T>(value); + } + }; + + template <typename T> + struct check_getter<T, std::enable_if_t<std::is_floating_point<T>::value>> { + template <typename Handler> + static optional<T> get(lua_State* L, int index, Handler&& handler, record& tracking) { + int isnum = 0; + lua_Number value = lua_tonumberx(L, index, &isnum); + if (isnum == 0) { + type t = type_of(L, index); + tracking.use(static_cast<int>(t != type::none)); + handler(L, index, type::number, t); + return nullopt; + } + tracking.use(1); + return static_cast<T>(value); + } + }; + + template <typename T> + struct getter<optional<T>> { + static decltype(auto) get(lua_State* L, int index, record& tracking) { + return check_get<T>(L, index, no_panic, tracking); + } + }; + } // stack +} // sol + +#endif // SOL_STACK_CHECK_GET_HPP |