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
|
/*
* FunctionList.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
VCMI_LIB_NAMESPACE_BEGIN
/// List of functions that share the same signature - can be used to call all of them easily
template<typename Signature>
class CFunctionList
{
std::vector<std::function<Signature> > funcs;
public:
CFunctionList( std::nullptr_t ) { }
CFunctionList( int ) { }
CFunctionList( ){ }
template <typename Functor>
CFunctionList(const Functor &f)
{
funcs.push_back(std::function<Signature>(f));
}
CFunctionList(const std::function<Signature> &first)
{
if (first)
funcs.push_back(first);
}
CFunctionList & operator+=(const CFunctionList<Signature> &first)
{
for( auto & fun : first.funcs)
{
funcs.push_back(fun);
}
return *this;
}
void clear()
{
funcs.clear();
}
operator bool() const
{
return !funcs.empty();
}
template <typename... Args>
void operator()(Args ... args) const
{
std::vector<std::function<Signature> > funcs_copy = funcs;
for( auto & fun : funcs_copy)
{
if (fun)
fun(args...);
}
}
};
VCMI_LIB_NAMESPACE_END
|
