mirror of
https://github.com/ThePhD/sol2.git
synced 2024-03-22 13:10:44 +08:00
27174aba9c
Adds a `protect()` function to trigger safety for an item. This commit also optimizes away all instances of virtual function calls for function calls and storage. Will need to test speed to see how it works out. Closes #133 Closes #134 Closes #135 Closes #136
296 lines
9.9 KiB
C++
296 lines
9.9 KiB
C++
// 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_STACK_CORE_HPP
|
|
#define SOL_STACK_CORE_HPP
|
|
|
|
#include "types.hpp"
|
|
#include "reference.hpp"
|
|
#include "stack_reference.hpp"
|
|
#include "userdata.hpp"
|
|
#include "tuple.hpp"
|
|
#include "traits.hpp"
|
|
#include "tie.hpp"
|
|
|
|
namespace sol {
|
|
namespace detail {
|
|
struct as_reference_tag {};
|
|
|
|
using special_destruct_func = void(*)(void*);
|
|
|
|
template <typename T, typename Real>
|
|
inline void special_destruct(void* memory) {
|
|
T** pointerpointer = static_cast<T**>(memory);
|
|
special_destruct_func* dx = static_cast<special_destruct_func*>(static_cast<void*>(pointerpointer + 1));
|
|
Real* target = static_cast<Real*>(static_cast<void*>(dx + 1));
|
|
target->~Real();
|
|
}
|
|
|
|
template <typename T>
|
|
inline int unique_destruct(lua_State* L) {
|
|
void* memory = lua_touserdata(L, 1);
|
|
T** pointerpointer = static_cast<T**>(memory);
|
|
special_destruct_func& dx = *static_cast<special_destruct_func*>(static_cast<void*>(pointerpointer + 1));
|
|
(dx)(memory);
|
|
return 0;
|
|
}
|
|
} // detail
|
|
|
|
namespace stack {
|
|
|
|
template<typename T, bool global = false, bool raw = false, typename = void>
|
|
struct field_getter;
|
|
template <typename T, bool global = false, bool raw = false, typename = void>
|
|
struct probe_field_getter;
|
|
template<typename T, bool global = false, bool raw = false, typename = void>
|
|
struct field_setter;
|
|
template<typename T, typename = void>
|
|
struct getter;
|
|
template<typename T, typename = void>
|
|
struct popper;
|
|
template<typename T, typename = void>
|
|
struct pusher;
|
|
template<typename T, type = lua_type_of<T>::value, typename = void>
|
|
struct checker;
|
|
template<typename T, typename = void>
|
|
struct check_getter;
|
|
|
|
struct probe {
|
|
bool success;
|
|
int levels;
|
|
|
|
probe(bool s, int l) : success(s), levels(l) {}
|
|
|
|
operator bool() const { return success; };
|
|
};
|
|
|
|
namespace stack_detail {
|
|
template <typename T>
|
|
struct strip {
|
|
typedef T type;
|
|
};
|
|
template <typename T>
|
|
struct strip<std::reference_wrapper<T>> {
|
|
typedef T& type;
|
|
};
|
|
template <typename T>
|
|
struct strip<user<T>> {
|
|
typedef T& type;
|
|
};
|
|
template <typename T>
|
|
struct strip<non_null<T>> {
|
|
typedef T type;
|
|
};
|
|
template <typename T>
|
|
using strip_t = typename strip<T>::type;
|
|
const bool default_check_arguments =
|
|
#ifdef SOL_CHECK_ARGUMENTS
|
|
true;
|
|
#else
|
|
false;
|
|
#endif
|
|
template<typename T>
|
|
inline decltype(auto) unchecked_get(lua_State* L, int index = -1) {
|
|
return getter<meta::unqualified_t<T>>{}.get(L, index);
|
|
}
|
|
} // stack_detail
|
|
|
|
inline bool maybe_indexable(lua_State* L, int index = -1) {
|
|
type t = type_of(L, index);
|
|
return t == type::userdata || t == type::table;
|
|
}
|
|
|
|
template<typename T, typename... Args>
|
|
inline int push(lua_State* L, T&& t, Args&&... args) {
|
|
return pusher<meta::unqualified_t<T>>{}.push(L, std::forward<T>(t), std::forward<Args>(args)...);
|
|
}
|
|
|
|
// overload allows to use a pusher of a specific type, but pass in any kind of args
|
|
template<typename T, typename Arg, typename... Args>
|
|
inline int push(lua_State* L, Arg&& arg, Args&&... args) {
|
|
return pusher<meta::unqualified_t<T>>{}.push(L, std::forward<Arg>(arg), std::forward<Args>(args)...);
|
|
}
|
|
|
|
template<typename T, typename... Args>
|
|
inline int push_reference(lua_State* L, T&& t, Args&&... args) {
|
|
typedef meta::all<
|
|
std::is_lvalue_reference<T>,
|
|
meta::neg<std::is_const<T>>,
|
|
meta::neg<is_lua_primitive<T>>
|
|
> use_reference_tag;
|
|
return pusher<std::conditional_t<use_reference_tag::value, detail::as_reference_tag, meta::unqualified_t<T>>>{}.push(L, std::forward<T>(t), std::forward<Args>(args)...);
|
|
}
|
|
|
|
inline int multi_push(lua_State*) {
|
|
// do nothing
|
|
return 0;
|
|
}
|
|
|
|
template<typename T, typename... Args>
|
|
inline int multi_push(lua_State* L, T&& t, Args&&... args) {
|
|
int pushcount = push(L, std::forward<T>(t));
|
|
void(sol::detail::swallow{ (pushcount += sol::stack::push(L, std::forward<Args>(args)), 0)... });
|
|
return pushcount;
|
|
}
|
|
|
|
inline int multi_push_reference(lua_State*) {
|
|
// do nothing
|
|
return 0;
|
|
}
|
|
|
|
template<typename T, typename... Args>
|
|
inline int multi_push_reference(lua_State* L, T&& t, Args&&... args) {
|
|
int pushcount = push_reference(L, std::forward<T>(t));
|
|
void(sol::detail::swallow{ (pushcount += sol::stack::push_reference(L, std::forward<Args>(args)), 0)... });
|
|
return pushcount;
|
|
}
|
|
|
|
template <typename T, typename Handler>
|
|
bool check(lua_State* L, int index, Handler&& handler) {
|
|
typedef meta::unqualified_t<T> Tu;
|
|
checker<Tu> c;
|
|
// VC++ has a bad warning here: shut it up
|
|
(void)c;
|
|
return c.check(L, index, std::forward<Handler>(handler));
|
|
}
|
|
|
|
template <typename T>
|
|
bool check(lua_State* L, int index = -1) {
|
|
auto handler = no_panic;
|
|
return check<T>(L, index, handler);
|
|
}
|
|
|
|
template<typename T, typename Handler>
|
|
inline decltype(auto) check_get(lua_State* L, int index, Handler&& handler) {
|
|
return check_getter<meta::unqualified_t<T>>{}.get(L, index, std::forward<Handler>(handler));
|
|
}
|
|
|
|
template<typename T>
|
|
inline decltype(auto) check_get(lua_State* L, int index = -1) {
|
|
auto handler = no_panic;
|
|
return check_get<T>(L, index, handler);
|
|
}
|
|
|
|
namespace stack_detail {
|
|
|
|
#ifdef SOL_CHECK_ARGUMENTS
|
|
template <typename T>
|
|
inline auto tagged_get(types<T>, lua_State* L, int index = -1) -> decltype(stack_detail::unchecked_get<T>(L, index)) {
|
|
auto op = check_get<T>(L, index, type_panic);
|
|
return *op;
|
|
}
|
|
#else
|
|
template <typename T>
|
|
inline decltype(auto) tagged_get(types<T>, lua_State* L, int index = -1) {
|
|
return stack_detail::unchecked_get<T>(L, index);
|
|
}
|
|
#endif
|
|
|
|
template <typename T>
|
|
inline decltype(auto) tagged_get(types<optional<T>>, lua_State* L, int index = -1) {
|
|
return stack_detail::unchecked_get<optional<T>>(L, index);
|
|
}
|
|
|
|
template <typename T>
|
|
inline int alloc_destroy(lua_State* L) {
|
|
void* rawdata = lua_touserdata(L, upvalue_index(1));
|
|
T* data = static_cast<T*>(rawdata);
|
|
std::allocator<T> alloc;
|
|
alloc.destroy(data);
|
|
return 0;
|
|
}
|
|
|
|
} // stack_detail
|
|
|
|
template<typename T>
|
|
inline decltype(auto) get(lua_State* L, int index = -1) {
|
|
return stack_detail::tagged_get(types<T>(), L, index);
|
|
}
|
|
|
|
template<typename T>
|
|
inline decltype(auto) pop(lua_State* L) {
|
|
return popper<meta::unqualified_t<T>>{}.pop(L);
|
|
}
|
|
|
|
template <bool global = false, bool raw = false, typename Key>
|
|
void get_field(lua_State* L, Key&& key) {
|
|
field_getter<meta::unqualified_t<Key>, global, raw>{}.get(L, std::forward<Key>(key));
|
|
}
|
|
|
|
template <bool global = false, bool raw = false, typename Key>
|
|
void get_field(lua_State* L, Key&& key, int tableindex) {
|
|
field_getter<meta::unqualified_t<Key>, global, raw>{}.get(L, std::forward<Key>(key), tableindex);
|
|
}
|
|
|
|
template <bool global = false, typename Key>
|
|
void raw_get_field(lua_State* L, Key&& key) {
|
|
get_field<global, true>(L, std::forward<Key>(key));
|
|
}
|
|
|
|
template <bool global = false, typename Key>
|
|
void raw_get_field(lua_State* L, Key&& key, int tableindex) {
|
|
get_field<global, true>(L, std::forward<Key>(key), tableindex);
|
|
}
|
|
|
|
template <bool global = false, bool raw = false, typename Key>
|
|
probe probe_get_field(lua_State* L, Key&& key) {
|
|
return probe_field_getter<meta::unqualified_t<Key>, global, raw>{}.get(L, std::forward<Key>(key));
|
|
}
|
|
|
|
template <bool global = false, bool raw = false, typename Key>
|
|
probe probe_get_field(lua_State* L, Key&& key, int tableindex) {
|
|
return probe_field_getter<meta::unqualified_t<Key>, global, raw>{}.get(L, std::forward<Key>(key), tableindex);
|
|
}
|
|
|
|
template <bool global = false, typename Key>
|
|
probe probe_raw_get_field(lua_State* L, Key&& key) {
|
|
return probe_get_field<global, true>(L, std::forward<Key>(key));
|
|
}
|
|
|
|
template <bool global = false, typename Key>
|
|
probe probe_raw_get_field(lua_State* L, Key&& key, int tableindex) {
|
|
return probe_get_field<global, true>(L, std::forward<Key>(key), tableindex);
|
|
}
|
|
|
|
template <bool global = false, bool raw = false, typename Key, typename Value>
|
|
void set_field(lua_State* L, Key&& key, Value&& value) {
|
|
field_setter<meta::unqualified_t<Key>, global, raw>{}.set(L, std::forward<Key>(key), std::forward<Value>(value));
|
|
}
|
|
|
|
template <bool global = false, bool raw = false, typename Key, typename Value>
|
|
void set_field(lua_State* L, Key&& key, Value&& value, int tableindex) {
|
|
field_setter<meta::unqualified_t<Key>, global, raw>{}.set(L, std::forward<Key>(key), std::forward<Value>(value), tableindex);
|
|
}
|
|
|
|
template <bool global = false, typename Key, typename Value>
|
|
void raw_set_field(lua_State* L, Key&& key, Value&& value) {
|
|
set_field<global, true>(L, std::forward<Key>(key), std::forward<Value>(value));
|
|
}
|
|
|
|
template <bool global = false, typename Key, typename Value>
|
|
void raw_set_field(lua_State* L, Key&& key, Value&& value, int tableindex) {
|
|
set_field<global, true>(L, std::forward<Key>(key), std::forward<Value>(value), tableindex);
|
|
}
|
|
} // stack
|
|
} // sol
|
|
|
|
#endif // SOL_STACK_CORE_HPP
|