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// sol2
// The MIT License (MIT)
// Copyright (c) 2013-2022 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_FUNCTION_HPP
#define SOL_FUNCTION_HPP
#include <sol/stack.hpp>
#include <sol/unsafe_function.hpp>
#include <sol/protected_function.hpp>
#include <sol/bytecode.hpp>
#include <functional>
namespace sol {
template <typename... Ret, typename... Args>
decltype(auto) stack_proxy::call(Args&&... args) {
stack_function sf(this->lua_state(), this->stack_index());
return sf.template call<Ret...>(std::forward<Args>(args)...);
}
inline protected_function_result::protected_function_result(unsafe_function_result&& o) noexcept
: L(o.lua_state()), index(o.stack_index()), returncount(o.return_count()), popcount(o.return_count()), err(o.status()) {
// Must be manual, otherwise destructor will screw us
// return count being 0 is enough to keep things clean
// but we will be thorough
o.abandon();
}
inline protected_function_result& protected_function_result::operator=(unsafe_function_result&& o) noexcept {
L = o.lua_state();
index = o.stack_index();
returncount = o.return_count();
popcount = o.return_count();
err = o.status();
// Must be manual, otherwise destructor will screw us
// return count being 0 is enough to keep things clean
// but we will be thorough
o.abandon();
return *this;
}
inline unsafe_function_result::unsafe_function_result(protected_function_result&& o) noexcept
: L(o.lua_state()), index(o.stack_index()), returncount(o.return_count()) {
// Must be manual, otherwise destructor will screw us
// return count being 0 is enough to keep things clean
// but we will be thorough
o.abandon();
}
inline unsafe_function_result& unsafe_function_result::operator=(protected_function_result&& o) noexcept {
L = o.lua_state();
index = o.stack_index();
returncount = o.return_count();
// Must be manual, otherwise destructor will screw us
// return count being 0 is enough to keep things clean
// but we will be thorough
o.abandon();
return *this;
}
namespace detail {
template <typename... R>
struct std_shim {
unsafe_function lua_func_;
std_shim(unsafe_function lua_func) : lua_func_(std::move(lua_func)) {
}
template <typename... Args>
meta::return_type_t<R...> operator()(Args&&... args) {
return lua_func_.call<R...>(std::forward<Args>(args)...);
}
};
template <>
struct std_shim<void> {
unsafe_function lua_func_;
std_shim(unsafe_function lua_func) : lua_func_(std::move(lua_func)) {
}
template <typename... Args>
void operator()(Args&&... args) {
lua_func_.call<void>(std::forward<Args>(args)...);
}
};
} // namespace detail
namespace stack {
template <typename Signature>
struct unqualified_getter<std::function<Signature>> {
typedef meta::bind_traits<Signature> fx_t;
typedef typename fx_t::args_list args_lists;
typedef meta::tuple_types<typename fx_t::return_type> return_types;
template <typename... R>
static std::function<Signature> get_std_func(types<R...>, lua_State* L, int index) {
detail::std_shim<R...> fx(unsafe_function(L, index));
return fx;
}
static std::function<Signature> get(lua_State* L, int index, record& tracking) {
tracking.use(1);
type t = type_of(L, index);
if (t == type::none || t == type::lua_nil) {
return nullptr;
}
return get_std_func(return_types(), L, index);
}
};
template <typename Allocator>
struct unqualified_getter<basic_bytecode<Allocator>> {
static basic_bytecode<Allocator> get(lua_State* L, int index, record& tracking) {
tracking.use(1);
stack_function sf(L, index);
return sf.dump(&dump_panic_on_error);
}
};
} // namespace stack
} // namespace sol
#endif // SOL_FUNCTION_HPP
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