LeechCraft  0.6.70-6645-gcd10d7e
Modular cross-platform feature rich live environment.
util.h
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29 
30 #pragma once
31 
32 #include <functional>
33 
34 namespace LeechCraft
35 {
36 namespace Util
37 {
38  namespace detail
39  {
40  using DefaultScopeGuardDeleter = std::function<void ()>;
41 
42  template<typename F>
43  class ScopeGuard
44  {
45  F F_;
46  bool Perform_ = true;
47  public:
48  ScopeGuard () noexcept
49  : F_ {}
50  , Perform_ { false }
51  {
52  }
53 
54  ScopeGuard (const F& f) noexcept
55  : F_ { f }
56  {
57  }
58 
59  ScopeGuard (const ScopeGuard&) = delete;
60  ScopeGuard& operator= (const ScopeGuard&) = delete;
61 
63  {
64  if (Perform_)
65  F_ ();
66 
67  F_ = other.F_;
68  Perform_ = other.Perform_;
69  other.Perform_ = false;
70  return *this;
71  }
72 
73  ScopeGuard (ScopeGuard&& other) noexcept
74  : F_ { other.F_ }
75  , Perform_ { other.Perform_ }
76  {
77  other.Perform_ = false;
78  }
79 
81  {
82  if (Perform_)
83  F_ ();
84  }
85 
86  void Dismiss () noexcept
87  {
88  Perform_ = false;
89  }
90 
92  {
93  Dismiss ();
95  }
96 
98  {
99  return EraseType ();
100  }
101  };
102  }
103 
105 
126  template<typename F>
128  {
129  return { f };
130  }
131 }
132 }
ScopeGuard & operator=(const ScopeGuard &)=delete
ScopeGuard< DefaultScopeGuardDeleter > EraseType()
Definition: util.h:91
detail::ScopeGuard< F > MakeScopeGuard(const F &f)
Returns an object performing passed function on scope exit.
Definition: util.h:127
ScopeGuard(const F &f) noexcept
Definition: util.h:54
std::function< void()> DefaultScopeGuardDeleter
Definition: util.h:40
ScopeGuard(ScopeGuard &&other) noexcept
Definition: util.h:73