diff options
Diffstat (limited to 'include/middleware_context.h')
| -rw-r--r-- | include/middleware_context.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/middleware_context.h b/include/middleware_context.h index 6dbf923..980a821 100644 --- a/include/middleware_context.h +++ b/include/middleware_context.h @@ -11,22 +11,47 @@ namespace crow : public black_magic::pop_back<Middlewares...>::template rebind<partial_context> , public black_magic::last_element_type<Middlewares...>::type::context { + using parent_context = typename black_magic::pop_back<Middlewares...>::template rebind<::crow::detail::partial_context>; + template <int N> + using partial = typename std::conditional<N == sizeof...(Middlewares)-1, partial_context, typename parent_context::template partial<N>>::type; + + template <typename T> + typename T::context& get() + { + return static_cast<typename T::context&>(*this); + } }; template <> struct partial_context<> { + template <int> + using partial = partial_context; }; + template <int N, typename Context, typename Container, typename CurrentMW, typename ... Middlewares> + bool middleware_call_helper(Container& middlewares, request& req, response& res, Context& ctx); + template <typename ... Middlewares> struct context : private partial_context<Middlewares...> //struct context : private Middlewares::context... // simple but less type-safe { + template <int N, typename Context, typename Container> + friend typename std::enable_if<(N==0)>::type after_handlers_call_helper(Container& middlewares, Context& ctx, request& req, response& res); + template <int N, typename Context, typename Container> + friend typename std::enable_if<(N>0)>::type after_handlers_call_helper(Container& middlewares, Context& ctx, request& req, response& res); + + template <int N, typename Context, typename Container, typename CurrentMW, typename ... Middlewares2> + friend bool middleware_call_helper(Container& middlewares, request& req, response& res, Context& ctx); + template <typename T> typename T::context& get() { return static_cast<typename T::context&>(*this); } + + template <int N> + using partial = typename partial_context<Middlewares...>::template partial<N>; }; } } |