mirror of
https://github.com/ThePhD/sol2.git
synced 2024-03-22 13:10:44 +08:00
commit
b2e83d4fca
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@ -58,6 +58,8 @@ public:
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function(lua_State* L, int index = -1): reference(L, index) {
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type_assert(L, index, type::function);
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}
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function(const function&) = default;
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function& operator=(const function&) = default;
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template<typename... Ret, typename... Args>
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auto call(Args&&... args) -> decltype(invoke(types<Ret...>(), sizeof...(Args))) {
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@ -1,125 +0,0 @@
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// The MIT License (MIT)
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// Copyright (c) 2013 Danny Y., Rapptz
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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_FUNCTIONAL_HPP
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#define SOL_FUNCTIONAL_HPP
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#include "tuple.hpp"
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namespace sol {
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namespace detail {
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template<typename TFuncSignature>
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struct function_traits;
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template<typename T, typename R, typename... Args>
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struct function_traits<R(T::*)(Args...)> {
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static const std::size_t arity = sizeof...(Args);
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static const bool is_member_function = true;
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typedef std::tuple<Args...> arg_tuple_type;
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typedef types<Args...> args_type;
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typedef R(T::* function_pointer_type)(Args...);
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typedef typename std::remove_pointer<function_pointer_type>::type function_type;
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typedef R(* free_function_pointer_type)(Args...);
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typedef R return_type;
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template<std::size_t i>
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using arg = typename std::tuple_element<i, arg_tuple_type>::type;
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};
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template<typename T, typename R, typename... Args>
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struct function_traits<R(T::*)(Args...) const> {
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static const std::size_t arity = sizeof...(Args);
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static const bool is_member_function = true;
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typedef std::tuple<Args...> arg_tuple_type;
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typedef types<Args...> args_type;
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typedef R(T::* function_pointer_type)(Args...);
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typedef typename std::remove_pointer<function_pointer_type>::type function_type;
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typedef R(* free_function_pointer_type)(Args...);
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typedef R return_type;
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template<std::size_t i>
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using arg = typename std::tuple_element<i, arg_tuple_type>::type;
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};
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template<typename R, typename... Args>
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struct function_traits<R(Args...)> {
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static const std::size_t arity = sizeof...(Args);
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static const bool is_member_function = false;
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typedef std::tuple<Args...> arg_tuple_type;
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typedef types<Args...> args_type;
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typedef R(function_type)(Args...);
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typedef R(*function_pointer_type)(Args...);
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typedef R(* free_function_pointer_type)(Args...);
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typedef R return_type;
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template<std::size_t i>
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using arg = typename std::tuple_element<i, arg_tuple_type>::type;
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};
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template<typename R, typename... Args>
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struct function_traits<R(*)(Args...)> {
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static const std::size_t arity = sizeof...(Args);
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static const bool is_member_function = false;
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typedef std::tuple<Args...> arg_tuple_type;
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typedef types<Args...> args_type;
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typedef R(function_type)(Args...);
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typedef R(*function_pointer_type)(Args...);
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typedef R(* free_function_pointer_type)(Args...);
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typedef R return_type;
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template<std::size_t i>
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using arg = typename std::tuple_element<i, arg_tuple_type>::type;
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};
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using std::get;
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template<typename Function, typename Tuple, size_t... Indices>
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inline auto call(Function&& f, const Tuple& t, indices<Indices...>) -> decltype(f(get<Indices>(t)...)) {
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return f(get<Indices>(t)...);
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}
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} // detail
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template<typename... Ret>
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struct lua_return_type {
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typedef std::tuple<Ret...> type;
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};
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template<typename Ret>
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struct lua_return_type<Ret> {
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typedef Ret type;
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};
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template<>
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struct lua_return_type<> {
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typedef void type;
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};
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template<>
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struct lua_return_type<void> {
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typedef void type;
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};
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template<typename Function, typename... Args>
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inline auto call(Function&& f, const std::tuple<Args...>& t) -> decltype(detail::call(std::forward<Function>(f), t, build_indices<sizeof...(Args)>{})) {
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return call(std::forward<Function>(f), t, build_indices<sizeof...(Args)>{});
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}
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} // sol
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#endif // SOL_FUNCTIONAL_HPP
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@ -22,7 +22,6 @@
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#ifndef SOL_LUA_FUNC_HPP
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#define SOL_LUA_FUNC_HPP
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#include "functional.hpp"
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#include "stack.hpp"
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#include <memory>
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@ -62,7 +61,7 @@ void get_upvalue(lua_State* L, T& data, int& upvalue) {
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template<typename TFx>
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struct static_lua_func {
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typedef typename std::remove_pointer<typename std::decay<TFx>::type>::type fx_t;
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typedef detail::function_traits<fx_t> fx_traits;
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typedef function_traits<fx_t> fx_traits;
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template<typename... Args>
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static int typed_call(types<void>, types<Args...> t, fx_t* fx, lua_State* L) {
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@ -93,7 +92,7 @@ struct static_lua_func {
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template<typename T, typename TFx>
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struct static_object_lua_func {
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typedef typename std::decay<TFx>::type fx_t;
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typedef detail::function_traits<fx_t> fx_traits;
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typedef function_traits<fx_t> fx_traits;
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template<typename... Args>
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static int typed_call(types<void>, types<Args...>, T& item, fx_t& ifx, lua_State* L) {
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@ -173,7 +172,7 @@ struct lua_func {
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template<typename TFx>
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struct lambda_lua_func : public lua_func {
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typedef decltype(&TFx::operator()) fx_t;
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typedef detail::function_traits<fx_t> fx_traits;
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typedef function_traits<fx_t> fx_traits;
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TFx fx;
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template<typename... FxArgs>
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@ -200,7 +199,7 @@ struct lambda_lua_func : public lua_func {
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template<typename TFx, typename T = TFx, bool is_member_pointer = std::is_member_function_pointer<TFx>::value>
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struct explicit_lua_func : public lua_func {
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typedef typename std::remove_pointer<typename std::decay<TFx>::type>::type fx_t;
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typedef detail::function_traits<fx_t> fx_traits;
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typedef function_traits<fx_t> fx_traits;
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TFx fx;
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template<typename... FxArgs>
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@ -227,7 +226,7 @@ struct explicit_lua_func : public lua_func {
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template<typename TFx, typename T>
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struct explicit_lua_func<TFx, T, true> : public lua_func {
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typedef typename std::remove_pointer<typename std::decay<TFx>::type>::type fx_t;
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typedef detail::function_traits<fx_t> fx_traits;
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typedef function_traits<fx_t> fx_traits;
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struct lambda {
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T member;
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TFx invocation;
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@ -91,6 +91,30 @@ public:
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return lua_rawlen(state(), -1);
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}
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private:
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template<typename T>
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struct proxy {
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private:
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table& t;
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T& key;
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public:
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proxy(table& t, T& key) : t(t), key(key) {}
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template<typename U>
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EnableIf<Function<Unqualified<U>>> operator=(U&& other) {
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t.set_function(key, std::forward<U>(other));
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}
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template<typename U>
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DisableIf<Function<Unqualified<U>>> operator=(U&& other) {
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t.set(key, std::forward<U>(other));
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}
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template<typename U>
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operator U() const {
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return t.get<U>(key);
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}
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};
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template<typename T, typename TFx>
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table& set_isfunction_fx(std::true_type, T&& key, TFx&& fx) {
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return set_fx(std::false_type(), std::forward<T>(key), std::forward<TFx>(fx));
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@ -99,7 +123,7 @@ private:
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template<typename T, typename TFx>
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table& set_isfunction_fx(std::false_type, T&& key, TFx&& fx) {
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typedef Decay<TFx> clean_lambda;
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typedef typename detail::function_traits<decltype(&clean_lambda::operator())>::free_function_pointer_type raw_func_t;
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typedef typename function_traits<decltype(&clean_lambda::operator())>::free_function_pointer_type raw_func_t;
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typedef std::is_convertible<clean_lambda, raw_func_t> isconvertible;
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return set_isconvertible_fx(isconvertible(), std::forward<T>(key), std::forward<TFx>(fx));
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}
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template<typename T, typename TFx>
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table& set_isconvertible_fx(std::true_type, T&& key, TFx&& fx) {
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typedef Decay<TFx> clean_lambda;
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typedef typename detail::function_traits<decltype(&clean_lambda::operator())>::free_function_pointer_type raw_func_t;
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typedef typename function_traits<decltype(&clean_lambda::operator())>::free_function_pointer_type raw_func_t;
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return set_isfunction_fx(std::true_type(), std::forward<T>(key), raw_func_t(std::forward<TFx>(fx)));
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}
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@ -207,30 +231,6 @@ private:
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lua_pop(state(), 1);
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return *this;
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}
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template<typename T>
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struct proxy {
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private:
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table& t;
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T& key;
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public:
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proxy(table& t, T& key): t(t), key(key) {}
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template<typename U>
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DisableIf<Function<Unqualified<U>>> operator=(U&& other) {
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t.set(key, std::forward<U>(other));
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}
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template<typename U>
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EnableIf<Function<Unqualified<U>>> operator=(U&& other) {
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t.set_function(key, std::forward<U>(other));
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}
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template<typename U>
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operator U() const {
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return t.get<U>(key);
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}
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};
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};
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} // sol
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@ -40,11 +40,11 @@ using Decay = typename std::decay<T>::type;
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namespace detail {
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// code borrowed from Gears
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// https://github.com/Rapptz/Gears/
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template<typename T, typename = void>
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template<typename T, bool isclass = std::is_class<Unqualified<T>>::value>
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struct is_function_impl : std::is_function<typename std::remove_pointer<T>::type> {};
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template<typename T>
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struct is_function_impl<T, EnableIf<std::is_class<Unqualified<T>>>> {
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struct is_function_impl<T, true> {
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using yes = char;
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using no = struct { char s[2]; };
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template<typename T>
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struct Function : Bool<detail::is_function_impl<T>::value> {};
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template<typename TFuncSignature>
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struct function_traits;
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template<typename T, typename R, typename... Args>
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struct function_traits<R( T::* )( Args... )> {
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static const std::size_t arity = sizeof...( Args );
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static const bool is_member_function = true;
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typedef std::tuple<Args...> arg_tuple_type;
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typedef types<Args...> args_type;
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typedef R( T::* function_pointer_type )( Args... );
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typedef typename std::remove_pointer<function_pointer_type>::type function_type;
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typedef R( *free_function_pointer_type )( Args... );
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typedef R return_type;
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template<std::size_t i>
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using arg = typename std::tuple_element<i, arg_tuple_type>::type;
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};
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template<typename T, typename R, typename... Args>
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struct function_traits<R( T::* )( Args... ) const> {
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static const std::size_t arity = sizeof...( Args );
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static const bool is_member_function = true;
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typedef std::tuple<Args...> arg_tuple_type;
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typedef types<Args...> args_type;
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typedef R( T::* function_pointer_type )( Args... );
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typedef typename std::remove_pointer<function_pointer_type>::type function_type;
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typedef R( *free_function_pointer_type )( Args... );
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typedef R return_type;
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template<std::size_t i>
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using arg = typename std::tuple_element<i, arg_tuple_type>::type;
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};
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template<typename R, typename... Args>
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struct function_traits<R( Args... )> {
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static const std::size_t arity = sizeof...( Args );
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static const bool is_member_function = false;
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typedef std::tuple<Args...> arg_tuple_type;
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typedef types<Args...> args_type;
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typedef R( function_type )( Args... );
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typedef R( *function_pointer_type )( Args... );
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typedef R( *free_function_pointer_type )( Args... );
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typedef R return_type;
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template<std::size_t i>
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using arg = typename std::tuple_element<i, arg_tuple_type>::type;
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};
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template<typename R, typename... Args>
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struct function_traits<R( *)( Args... )> {
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static const std::size_t arity = sizeof...( Args );
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static const bool is_member_function = false;
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typedef std::tuple<Args...> arg_tuple_type;
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typedef types<Args...> args_type;
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typedef R( function_type )( Args... );
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typedef R( *function_pointer_type )( Args... );
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typedef R( *free_function_pointer_type )( Args... );
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typedef R return_type;
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template<std::size_t i>
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using arg = typename std::tuple_element<i, arg_tuple_type>::type;
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};
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} // sol
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#endif // SOL_TRAITS_HPP
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