mirror of
https://github.com/ThePhD/sol2.git
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92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
// The MIT License (MIT)
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// Copyright (c) 2013-2016 Rapptz and contributors
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef SOL_OBJECT_HPP
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#define SOL_OBJECT_HPP
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#include "reference.hpp"
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#include "stack.hpp"
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#include "function.hpp"
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namespace sol {
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class object : public reference {
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public:
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object(lua_State* L, int index = -1): reference(L, index) {}
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object() = default;
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template<typename T>
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decltype(auto) as() const {
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push();
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type actual = stack::get<type>(lua_state());
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type_assert(lua_state(), -1, type_of<T>(), actual);
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return stack::pop<T>(lua_state());
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}
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template<typename T>
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bool is() const {
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auto expected = type_of<T>();
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auto actual = get_type();
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return (expected == actual) || (expected == type::poly);
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}
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bool valid() const {
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return !this->is<nil_t>();
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}
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operator const char* () const {
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return this->as<const char*>();
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}
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template<typename T, EnableIf<Not<std::is_same<Unqualified<T>, const char*>>, Not<std::is_same<Unqualified<T>, char>>, Not<std::is_same<Unqualified<T>, std::string>>, Not<std::is_same<Unqualified<T>, std::initializer_list<char>>>> = 0>
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operator T () const {
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return this->as<T>();
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}
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template<typename... Ret, typename... Args>
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decltype(auto) call( Args&&... args ) {
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return this->as<function>()(types<Ret...>(), std::forward<Args>( args )...);
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}
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template<typename... Args>
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function_result operator()( Args&&... args ) {
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return this->as<function>()(std::forward<Args>( args )...);
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}
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};
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inline bool operator==(const object& lhs, const nil_t&) {
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return !lhs.valid();
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}
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inline bool operator==(const nil_t&, const object& rhs) {
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return !rhs.valid();
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}
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inline bool operator!=(const object& lhs, const nil_t&) {
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return lhs.valid();
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}
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inline bool operator!=(const nil_t&, const object& rhs) {
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return rhs.valid();
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}
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} // sol
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#endif // SOL_OBJECT_HPP
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