LeechCraft  0.6.70-13729-g7046a9d2a7
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 "xpcconfig.h"
37 
38 namespace LC
39 {
40 namespace Util
41 {
42  using Introspect_f = std::function<QVariantMap (QVariant)>;
43 
45  {
46  QHash<int, Introspect_f> Intros_;
47 
48  Introspectable () = default;
49  public:
50  Introspectable (const Introspectable&) = delete;
51  Introspectable& operator= (const Introspectable&) = delete;
52 
53  static Introspectable& Instance ();
54 
55  template<typename T, typename U>
56  void Register (const U& intro, std::result_of_t<U (QVariant)>* = nullptr)
57  {
58  const auto id = qMetaTypeId<T> ();
59  Intros_ [id] = intro;
60  }
61 
62  template<typename T, typename U>
63  void Register (const U& intro, std::result_of_t<U (T)>* = nullptr)
64  {
65  Register<T> ([intro] (const QVariant& var) { return std::invoke (intro, var.value<T> ()); });
66  }
67 
68  template<typename T>
69  QVariantMap operator() (const T& t) const
70  {
71  return (*this) (QVariant::fromValue<T> (t));
72  }
73 
74  QVariantMap operator() (const QVariant&) const;
75  };
76 }
77 }
std::function< QVariantMap(QVariant)> Introspect_f
void Register(const U &intro, std::result_of_t< U(QVariant)> *=nullptr)
void Register(const U &intro, std::result_of_t< U(T)> *=nullptr)
Definition: constants.h:35
#define UTIL_XPC_API
Definition: xpcconfig.h:37