blob: b6d52afd3344d8480cd09585a9188ccb514066d3 (
plain)
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
|
#pragma once
#include "asl/base/utility.hpp"
#include "asl/base/functional.hpp"
namespace asl
{
// @Todo Add invokable check
template<typename Callback>
class DeferCallback
{
Callback m_callback;
bool m_moved = false;
public:
template<typename T>
explicit DeferCallback(T&& callback) : m_callback(ASL_FWD(callback))
{
}
ASL_DELETE_COPY(DeferCallback);
DeferCallback(DeferCallback&& other) :
m_callback(ASL_MOVE(other.m_callback)), m_moved(exchange(other.m_moved, true))
{
}
DeferCallback& operator=(DeferCallback&&) = delete;
~DeferCallback()
{
if (!m_moved) { invoke(m_callback); }
}
};
struct DeferFactory
{
// @Todo Add invokable check
template<typename Callback>
DeferCallback<Callback> operator<<(Callback&& callback) const
{
return DeferCallback<Callback>(ASL_FWD(callback));
}
};
} // namespace asl
#define ASL_DEFER auto ASL_CONCAT(_defer_, __COUNTER__) = ::asl::DeferFactory{} <<
|
