1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
// 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_TYPES_TEMPLATED_HPP
#define SOL_FUNCTION_TYPES_TEMPLATED_HPP
#include <sol/call.hpp>
namespace sol {
namespace function_detail {
template <typename F, F fx>
inline int call_wrapper_variable(std::false_type, lua_State* L) {
typedef meta::bind_traits<meta::unqualified_t<F>> traits_type;
typedef typename traits_type::args_list args_list;
typedef meta::tuple_types<typename traits_type::return_type> return_type;
return stack::call_into_lua(return_type(), args_list(), L, 1, fx);
}
template <typename R, typename V, V, typename T>
inline int call_set_assignable(std::false_type, T&&, lua_State* L) {
return luaL_error(L, "cannot write to this type: copy assignment/constructor not available");
}
template <typename R, typename V, V variable, typename T>
inline int call_set_assignable(std::true_type, lua_State* L, T&& mem) {
(mem.*variable) = stack::get<R>(L, 2);
return 0;
}
template <typename R, typename V, V, typename T>
inline int call_set_variable(std::false_type, lua_State* L, T&&) {
return luaL_error(L, "cannot write to a const variable");
}
template <typename R, typename V, V variable, typename T>
inline int call_set_variable(std::true_type, lua_State* L, T&& mem) {
return call_set_assignable<R, V, variable>(std::is_assignable<std::add_lvalue_reference_t<R>, R>(), L, std::forward<T>(mem));
}
template <typename V, V variable>
inline int call_wrapper_variable(std::true_type, lua_State* L) {
typedef meta::bind_traits<meta::unqualified_t<V>> traits_type;
typedef typename traits_type::object_type T;
typedef typename traits_type::return_type R;
auto& mem = stack::get<T>(L, 1);
switch (lua_gettop(L)) {
case 1: {
decltype(auto) r = (mem.*variable);
stack::push_reference(L, std::forward<decltype(r)>(r));
return 1;
}
case 2:
return call_set_variable<R, V, variable>(meta::neg<std::is_const<R>>(), L, mem);
default:
return luaL_error(L, "incorrect number of arguments to member variable function call");
}
}
template <typename F, F fx>
inline int call_wrapper_function(std::false_type, lua_State* L) {
return call_wrapper_variable<F, fx>(std::is_member_object_pointer<F>(), L);
}
template <typename F, F fx>
inline int call_wrapper_function(std::true_type, lua_State* L) {
return call_detail::call_wrapped<void, false, false>(L, fx);
}
template <typename F, F fx>
int call_wrapper_entry(lua_State* L) noexcept(meta::bind_traits<F>::is_noexcept) {
return call_wrapper_function<F, fx>(std::is_member_function_pointer<meta::unqualified_t<F>>(), L);
}
template <typename... Fxs>
struct c_call_matcher {
template <typename Fx, std::size_t I, typename R, typename... Args>
int operator()(types<Fx>, meta::index_value<I>, types<R>, types<Args...>, lua_State* L, int, int) const {
typedef meta::at_in_pack_t<I, Fxs...> target;
return target::call(L);
}
};
template <typename F, F fx>
inline int c_call_raw(std::true_type, lua_State* L) {
return fx(L);
}
template <typename F, F fx>
inline int c_call_raw(std::false_type, lua_State* L) {
#ifdef __clang__
return detail::trampoline(L, function_detail::call_wrapper_entry<F, fx>);
#else
return detail::typed_static_trampoline<decltype(&function_detail::call_wrapper_entry<F, fx>), (&function_detail::call_wrapper_entry<F, fx>)>(L);
#endif // fuck you clang :c
}
} // namespace function_detail
template <typename F, F fx>
inline int c_call(lua_State* L) {
typedef meta::unqualified_t<F> Fu;
typedef std::integral_constant<bool,
std::is_same<Fu, lua_CFunction>::value
#if SOL_IS_ON(SOL_USE_NOEXCEPT_FUNCTION_TYPE)
|| std::is_same<Fu, detail::lua_CFunction_noexcept>::value
#endif
>
is_raw;
return function_detail::c_call_raw<F, fx>(is_raw(), L);
}
template <typename F, F f>
struct wrap {
typedef F type;
static int call(lua_State* L) noexcept(noexcept(c_call<type, f>(L))) {
return c_call<type, f>(L);
}
};
template <typename... Fxs>
inline int c_call(lua_State* L) {
if constexpr (sizeof...(Fxs) < 2) {
using target = meta::at_in_pack_t<0, Fxs...>;
return target::call(L);
}
else {
return call_detail::overload_match_arity<typename Fxs::type...>(function_detail::c_call_matcher<Fxs...>(), L, lua_gettop(L), 1);
}
}
} // namespace sol
#endif // SOL_FUNCTION_TYPES_TEMPLATED_HPP
|
