removed autoimpl in impl_outer_log

demo/runtime/src/lib.rs

@@ -178,7 +178,17 @@ impl_outer_event! {
 
 impl_outer_log! {
 	pub enum Log for Concrete {
-		consensus(AuthoritiesChange => consensus::AuthoritiesChange<SessionKey> => as_authorities_change)
+		consensus
+	}
+}
+
+impl DigestItem for Log {
+	type AuthoritiesChange = consensus::AuthoritiesChange<SessionKey>;
+
+	fn as_authorities_change(&self) -> Option<&Self::AuthoritiesChange> {
+		match *self {
+			Log::consensus(ref item) => item.as_authorities_change(),
+		}
 	}
 }
 

substrate/runtime-support/src/lib.rs

@@ -115,7 +115,8 @@ macro_rules! impl_outer_event {
 
 #[macro_export]
 macro_rules! impl_outer_log {
-	($(#[$attr:meta])* pub enum $name:ident for $trait:ident { $( $module:ident($( $log_type_name:ident => $log_type:ty => $as_log:ident ),*) ),* }) => {
+
+	($(#[$attr:meta])* pub enum $name:ident for $trait:ident { $( $module:ident ),* }) => {
 		// Workaround for https://github.com/rust-lang/rust/issues/26925 . Remove when sorted.
 		#[derive(Clone, PartialEq, Eq, Encode, Decode)]
 		#[cfg_attr(feature = "std", derive(Debug, Serialize, Deserialize))]
@@ -132,18 +133,6 @@ macro_rules! impl_outer_log {
 					$name::$module(x)
 				}
 			}
-
-			impl DigestItem for $name {
-				$(
-					type $log_type_name = $log_type;
-
-					fn $as_log(&self) -> Option<&$log_type> {
-						match *self {
-							$name::$module(ref item) => item.$as_log(),
-						}
-					}
-				)*
-			}
 		)*
-	}
+	};
 }