message: GAPI:Fix for using cv makes G_TYPED_KERNEL fail
diff: @@ -230,27 +230,25 @@ public:
  // The problem is that every typed kernel should have ::id() but body
  // of the class is defined by user (with outMeta, other stuff)
  +//! @cond IGNORED
  #define G_ID_HELPER_CLASS(Class) Class##IdHelper
  #define G_ID_HELPER_BODY(Class, Id) \
  - namespace detail \
  - { \
  struct G_ID_HELPER_CLASS(Class) \
  { \
  static constexpr const char * id() {return Id;} \
  }; \
  - }
  -
  +//! @endcond
  #define G_TYPED_KERNEL(Class, API, Id) \
  G_ID_HELPER_BODY(Class, Id) \
  struct Class final: public cv::GKernelType<Class, std::function API >, \
  - public detail::G_ID_HELPER_CLASS(Class)
  + public G_ID_HELPER_CLASS(Class)
  // {body} is to be defined by user
  #define G_TYPED_KERNEL_M(Class, API, Id) \
  G_ID_HELPER_BODY(Class, Id) \
  struct Class final: public cv::GKernelTypeM<Class, std::function API >, \
  - public detail::G_ID_HELPER_CLASS(Class)
  + public G_ID_HELPER_CLASS(Class)
  // {body} is to be defined by user
  #define G_API_OP G_TYPED_KERNEL
  