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
|
#ifndef EFL_CXX_DETAIL_INHERIT_BINDINGS_HH
#define EFL_CXX_DETAIL_INHERIT_BINDINGS_HH
#include <typeinfo>
#include <eina_integer_sequence.hh>
namespace efl { namespace eo { namespace detail {
/// @addtogroup Efl_Cxx_Detail
/// @{
/// @internal
///
/// @brief Sums up the number of <em>EO Operations</em> of each class
/// passed as argument to the template.
///
/// @see efl::eo::detail::operation_description_class_size
///
template <typename... E>
struct operation_description_size;
template <typename E0, typename... E>
struct operation_description_size<E0, E...>
{
static const int value = operation_description_class_size<E0>::value +
operation_description_size<E...>::value;
};
template <>
struct operation_description_size<>
{
static const int value = 0;
};
template <typename... Args>
void call_varargs(Args...)
{
}
/// @internal
///
/// @brief The procedure that actually is invoked when the constructor
/// of @c D is sought from the <em>EO Subsystem</em>.
///
/// @param self A pointer to @p obj's private data.
/// @param this_ A void pointer to the opaque <em>EO Class</em> ---
/// passed as <em>user data</em>.
///
inline
void inherit_constructor_impl(Eo*, Inherit_Private_Data* self, void* this_)
{
self->this_ = this_;
}
/// @internal
///
/// @brief Find the correct function for the <em>"constructor"</em>
/// operation and invoke it.
///
/// @param this_ The <em>user data</em> to be passed to the resolved function.
/// @param args An heterogeneous sequence of arguments.
///
inline EOAPI EO_VOID_FUNC_BODYV(inherit_constructor, EO_FUNC_CALL(this_), void* this_);
template <typename T>
int initialize_operation_description(detail::tag<void>, void*);
template <std::size_t I, typename... E>
struct
operation_description_index
{
typedef std::tuple<E...> tuple_type;
static const std::size_t value =
detail::operation_description_size
< typename std::tuple_element
<I-1, tuple_type>::type >::value +
operation_description_index<I-1, E...>::value;
};
template <typename... E>
struct
operation_description_index<0u, E...>
{
static const std::size_t value = 0u;
};
/// @internal
///
/// @brief This function is responsible for declaring a new <em>EO C
/// Class</em> representing @p D within <em>EO Subsystem</em>.
///
/// @param D The derived class
/// @param P The parent class
/// @param En Class extensions (either mixins or interfaces)
/// @param Args An heterogeneous list of arguments to be passed to the
/// constructor of this class.
///
/// @see efl::eo::inherit::inherit
///
template <typename D, typename... E, std::size_t ... S>
Eo_Class const* create_class(eina::index_sequence<S...>)
{
static const Eo_Class* my_class = NULL;
static Eo_Op_Description op_descs
[ detail::operation_description_size<E...>::value + 2 ];
op_descs[detail::operation_description_size<E...>::value].func =
reinterpret_cast<void*>
(
&detail::inherit_constructor_impl
);
op_descs[detail::operation_description_size<E...>::value].api_func =
reinterpret_cast<void*>
(
&detail::inherit_constructor
);
op_descs[detail::operation_description_size<E...>::value].op_type = EO_OP_TYPE_REGULAR;
op_descs[detail::operation_description_size<E...>::value+1].func = 0;
op_descs[detail::operation_description_size<E...>::value+1].api_func = 0;
op_descs[detail::operation_description_size<E...>::value+1].op_type = EO_OP_TYPE_INVALID;
typedef inherit<D, E...> inherit_type;
using namespace detail;
call_varargs(
initialize_operation_description<inherit_type>
(detail::tag<E>(),
&op_descs[operation_description_index<S, E...>::value]) ...
);
//locks
if(!my_class)
{
static Eo_Class_Description class_desc = {
EO_VERSION,
"Eo C++ Class",
EO_CLASS_TYPE_REGULAR,
EO_CLASS_DESCRIPTION_OPS(op_descs),
NULL,
sizeof(detail::Inherit_Private_Data),
NULL,
NULL
};
my_class = detail::do_eo_class_new<E...>(class_desc);
}
return my_class;
}
} } } // namespace efl { namespace eo { namespace detail {
#endif // EFL_CXX_DETAIL_INHERIT_BINDINGS_HH
|
