LeechCraft  0.6.70-6645-gcd10d7e
Modular cross-platform feature rich live environment.
introspectable.h
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29 
30 #pragma once
31 
32 #include <functional>
33 #include <QHash>
34 #include <QMetaType>
35 #include <QVariantMap>
36 #include <util/sll/oldcppkludges.h>
37 #include "xpcconfig.h"
38 
39 namespace LeechCraft
40 {
41 namespace Util
42 {
43  using Introspect_f = std::function<QVariantMap (QVariant)>;
44 
46  {
47  QHash<int, Introspect_f> Intros_;
48 
49  Introspectable () = default;
50  public:
51  Introspectable (const Introspectable&) = delete;
52  Introspectable& operator= (const Introspectable&) = delete;
53 
54  static Introspectable& Instance ();
55 
56  template<typename T, typename U>
57  void Register (const U& intro, decltype (Invoke (intro, std::declval<QVariant> ()))* = nullptr)
58  {
59  const auto id = qMetaTypeId<T> ();
60  Intros_ [id] = intro;
61  }
62 
63  template<typename T, typename U>
64  void Register (const U& intro, decltype (Invoke (intro, std::declval<T> ()))* = nullptr)
65  {
66  Register<T> ([intro] (const QVariant& var) { return Invoke (intro, var.value<T> ()); });
67  }
68 
69  template<typename T>
70  QVariantMap operator() (const T& t) const
71  {
72  return (*this) (QVariant::fromValue<T> (t));
73  }
74 
75  QVariantMap operator() (const QVariant&) const;
76  };
77 }
78 }
std::function< QVariantMap(QVariant)> Introspect_f
void Register(const U &intro, decltype(Invoke(intro, std::declval< T >()))*=nullptr)
auto Invoke(F &&f, Args &&...args) -> decltype(std::forward< F >(f)(std::forward< Args >(args)...))
Definition: oldcppkludges.h:39
void Register(const U &intro, decltype(Invoke(intro, std::declval< QVariant >()))*=nullptr)
#define UTIL_XPC_API
Definition: xpcconfig.h:37