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
|
// sol3
// The MIT License (MIT)
// Copyright (c) 2013-2019 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_CHECK_QUALIFIED_HPP
#define SOL_STACK_CHECK_QUALIFIED_HPP
#include "stack_check_unqualified.hpp"
namespace sol {
namespace stack {
template <typename X, type expected, typename>
struct qualified_checker {
template <typename Handler>
static bool check(lua_State* L, int index, Handler&& handler, record& tracking) {
if constexpr (!std::is_reference_v<X> && is_unique_usertype_v<X>) {
using u_traits = unique_usertype_traits<meta::unqualified_t<X>>;
using T = typename u_traits::type;
if constexpr (is_base_rebindable_non_void_v<u_traits>) {
using rebind_t = typename u_traits::template rebind_base<void>;
// we have a unique pointer type that can be
// rebound to a base/derived type
const type indextype = type_of(L, index);
tracking.use(1);
if (indextype != type::userdata) {
handler(L, index, type::userdata, indextype, "value is not a userdata");
return false;
}
void* memory = lua_touserdata(L, index);
memory = detail::align_usertype_unique_destructor(memory);
detail::unique_destructor& pdx = *static_cast<detail::unique_destructor*>(memory);
if (&detail::usertype_unique_alloc_destroy<T, X> == pdx) {
return true;
}
if constexpr (derive<T>::value) {
memory = detail::align_usertype_unique_tag<true, false>(memory);
detail::unique_tag& ic = *reinterpret_cast<detail::unique_tag*>(memory);
string_view ti = usertype_traits<T>::qualified_name();
string_view rebind_ti = usertype_traits<rebind_t>::qualified_name();
if (ic(nullptr, nullptr, ti, rebind_ti) != 0) {
return true;
}
}
handler(L, index, type::userdata, indextype, "value is a userdata but is not the correct unique usertype");
return false;
}
else {
return stack::unqualified_check<X>(L, index, std::forward<Handler>(handler), tracking);
}
}
else if constexpr (!std::is_reference_v<X> && is_container_v<X>) {
if (type_of(L, index) == type::userdata) {
return stack::unqualified_check<X>(L, index, std::forward<Handler>(handler), tracking);
}
else {
return stack::unqualified_check<nested<X>>(L, index, std::forward<Handler>(handler), tracking);
}
}
else {
return stack::unqualified_check<X>(L, index, std::forward<Handler>(handler), tracking);
}
}
};
}
} // namespace sol::stack
#endif // SOL_STACK_CHECK_HPP
|
