finish(error_code&) is a BodyReader requirement (API Change)

include/beast/http/buffer_body.hpp

@@ -137,6 +137,11 @@ struct buffer_body
                 ec = error::need_buffer;
             return boost::none;
         }
+
+        void
+        finish(error_code&)
+        {
+        }
     };
 #endif
 

include/beast/http/dynamic_body.hpp

@@ -70,6 +70,11 @@ struct basic_dynamic_body
         {
             return {{body_.data(), false}};
         }
+
+        void
+        finish(error_code&)
+        {
+        }
     };
 #endif
 

include/beast/http/empty_body.hpp

@@ -72,6 +72,11 @@ struct empty_body
         {
             return boost::none;
         }
+
+        void
+        finish(error_code&)
+        {
+        }
     };
 #endif
 

include/beast/http/impl/serializer.ipp

@@ -250,6 +250,10 @@ get(error_code& ec, Visit&& visit)
         break;
 
     go_complete:
+        if(rd_)
+            rd_->finish(ec);
+        if(ec)
+            return;
         s_ = do_complete;
         break;
     }

include/beast/http/string_body.hpp

@@ -73,6 +73,11 @@ struct string_body
             return {{const_buffers_type{
                 body_.data(), body_.size()}, false}};
         }
+
+        void
+        finish(error_code&)
+        {
+        }
     };
 #endif
 

include/beast/http/type_traits.hpp

@@ -83,6 +83,7 @@ struct is_body_reader<T, beast::detail::void_t<
     std::declval<boost::optional<std::pair<
             typename T::reader::const_buffers_type, bool>>&>() =
             std::declval<typename T::reader>().get(std::declval<error_code&>()),
+    std::declval<typename T::reader&>().finish(std::declval<error_code&>()),
         (void)0)>> : std::integral_constant<bool,
     is_const_buffer_sequence<
         typename T::reader::const_buffers_type>::value &&