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author | 2016-10-07 14:43:09 +0200 | |
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committer | 2016-10-07 14:43:09 +0200 | |
commit | 377472a6dd2c9bdff4d5667f5789c49aee2abb4c (patch) | |
tree | a0ce4d6fc3db1524609efc61307d48448e703f38 /3rdparty/sol2/sol/object.hpp | |
parent | 1335933ce00cf6095e403a24d0b1dd9e0b565650 (diff) |
Added sol2 header only library as future replacement for luabridge (nw)
Diffstat (limited to '3rdparty/sol2/sol/object.hpp')
-rw-r--r-- | 3rdparty/sol2/sol/object.hpp | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/3rdparty/sol2/sol/object.hpp b/3rdparty/sol2/sol/object.hpp new file mode 100644 index 00000000000..42b46f9c41e --- /dev/null +++ b/3rdparty/sol2/sol/object.hpp @@ -0,0 +1,152 @@ +// 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_OBJECT_HPP +#define SOL_OBJECT_HPP + +#include "optional.hpp" +#include "reference.hpp" +#include "stack.hpp" +#include "userdata.hpp" +#include "variadic_args.hpp" + +namespace sol { + + template <typename R = reference, bool should_pop = !std::is_base_of<stack_reference, R>::value, typename T> + R make_reference(lua_State* L, T&& value) { + int backpedal = stack::push(L, std::forward<T>(value)); + R r = stack::get<R>(L, -backpedal); + if (should_pop) { + lua_pop(L, backpedal); + } + return r; + } + + template <typename T, typename R = reference, bool should_pop = !std::is_base_of<stack_reference, R>::value, typename... Args> + R make_reference(lua_State* L, Args&&... args) { + int backpedal = stack::push<T>(L, std::forward<Args>(args)...); + R r = stack::get<R>(L, -backpedal); + if (should_pop) { + lua_pop(L, backpedal); + } + return r; + } + + template <typename base_t> + class basic_object : public base_t { + private: + template<typename T> + decltype(auto) as_stack(std::true_type) const { + return stack::get<T>(base_t::lua_state(), base_t::stack_index()); + } + + template<typename T> + decltype(auto) as_stack(std::false_type) const { + base_t::push(); + return stack::pop<T>(base_t::lua_state()); + } + + template<typename T> + bool is_stack(std::true_type) const { + return stack::check<T>(base_t::lua_state(), base_t::stack_index(), no_panic); + } + + template<typename T> + bool is_stack(std::false_type) const { + auto pp = stack::push_pop(*this); + return stack::check<T>(base_t::lua_state(), -1, no_panic); + } + + template <bool invert_and_pop = false> + basic_object(std::integral_constant<bool, invert_and_pop>, lua_State* L, int index = -1) noexcept : base_t(L, index) { + if (invert_and_pop) { + lua_pop(L, -index); + } + } + + public: + basic_object() noexcept = default; + template <typename T, meta::enable<meta::neg<std::is_same<meta::unqualified_t<T>, basic_object>>, meta::neg<std::is_same<base_t, stack_reference>>, std::is_base_of<base_t, meta::unqualified_t<T>>> = meta::enabler> + basic_object(T&& r) : base_t(std::forward<T>(r)) {} + basic_object(nil_t r) : base_t(r) {} + basic_object(const basic_object&) = default; + basic_object(basic_object&&) = default; + basic_object& operator=(const basic_object&) = default; + basic_object& operator=(basic_object&&) = default; + basic_object& operator=(const base_t& b) { base_t::operator=(b); return *this; } + basic_object& operator=(base_t&& b) { base_t::operator=(std::move(b)); return *this; } + basic_object(const stack_reference& r) noexcept : basic_object(r.lua_state(), r.stack_index()) {} + basic_object(stack_reference&& r) noexcept : basic_object(r.lua_state(), r.stack_index()) {} + template <typename Super> + basic_object(const proxy_base<Super>& r) noexcept : basic_object(r.operator basic_object()) {} + template <typename Super> + basic_object(proxy_base<Super>&& r) noexcept : basic_object(r.operator basic_object()) {} + template <typename Super> + basic_object& operator=(const proxy_base<Super>& r) { this->operator=(r.operator basic_object()); return *this; } + template <typename Super> + basic_object& operator=(proxy_base<Super>&& r) { this->operator=(r.operator basic_object()); return *this; } + basic_object(lua_State* L, int index = -1) noexcept : base_t(L, index) {} + template <typename T, typename... Args> + basic_object(lua_State* L, in_place_type_t<T>, Args&&... args) noexcept : basic_object(std::integral_constant<bool, !std::is_base_of<stack_reference, base_t>::value>(), L, -stack::push<T>(L, std::forward<Args>(args)...)) {} + template <typename T, typename... Args> + basic_object(lua_State* L, in_place_t, T&& arg, Args&&... args) noexcept : basic_object(L, in_place<T>, std::forward<T>(arg), std::forward<Args>(args)...) {} + + template<typename T> + decltype(auto) as() const { + return as_stack<T>(std::is_same<base_t, stack_reference>()); + } + + template<typename T> + bool is() const { + if (!base_t::valid()) + return false; + return is_stack<T>(std::is_same<base_t, stack_reference>()); + } + }; + + template <typename T> + object make_object(lua_State* L, T&& value) { + return make_reference<object, true>(L, std::forward<T>(value)); + } + + template <typename T, typename... Args> + object make_object(lua_State* L, Args&&... args) { + return make_reference<T, object, true>(L, std::forward<Args>(args)...); + } + + inline bool operator==(const object& lhs, const nil_t&) { + return !lhs.valid(); + } + + inline bool operator==(const nil_t&, const object& rhs) { + return !rhs.valid(); + } + + inline bool operator!=(const object& lhs, const nil_t&) { + return lhs.valid(); + } + + inline bool operator!=(const nil_t&, const object& rhs) { + return rhs.valid(); + } +} // sol + +#endif // SOL_OBJECT_HPP |