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90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
// The MIT License (MIT)
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// Copyright (c) 2013-2016 Rapptz, ThePhD 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 "userdata.hpp"
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#include "stack.hpp"
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namespace sol {
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template <typename base_t>
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class basic_object : public base_t {
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private:
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template<typename T>
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decltype(auto) as_stack(std::true_type) const {
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return stack::get<T>(lua_state(), base_t::stack_index());
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}
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template<typename T>
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decltype(auto) as_stack(std::false_type) const {
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base_t::push();
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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_stack(std::true_type) const {
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return stack::check<T>(lua_state(), base_t::stack_index(), no_panic);
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}
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template<typename T>
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bool is_stack(std::false_type) const {
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auto pp = stack::push_pop(*this);
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return stack::check<T>(lua_state(), -1, no_panic);
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}
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public:
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using base_t::base_t;
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using base_t::lua_state;
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template<typename T>
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decltype(auto) as() const {
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return as_stack<T>( std::is_same<base_t, stack_reference>() );
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}
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template<typename T>
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bool is() const {
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if (!base_t::valid())
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return false;
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return is_stack<T>(std::is_same<base_t, stack_reference>());
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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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