Auto merge of #62069 - Centril:rollup-m8n4uw7, r=Centril

[rust.git] / src / libproc_macro / bridge / rpc.rs

diff --git a/src/libproc_macro/bridge/rpc.rs b/src/libproc_macro/bridge/rpc.rs
index 5018be74f89973930906a0f9a768186e0c2b57e9..5c2f9ec9848dda7d26b1b6d5b2545cd70313f5ec 100644 (file)
--- a/src/libproc_macro/bridge/rpc.rs
+++ b/src/libproc_macro/bridge/rpc.rs
@@ -59,7 +59,7 @@ fn decode(r: &mut Reader<'_>, s: &mut S) -> Self {
         }
     };
     (enum $name:ident $(<$($T:ident),+>)? { $($variant:ident $(($field:ident))*),* $(,)? }) => {
-        impl<S, $($($T: Encode<S>),+)?> Encode<S> for $name $(<$($T),+>)* {
+        impl<S, $($($T: Encode<S>),+)?> Encode<S> for $name $(<$($T),+>)? {
             fn encode(self, w: &mut Writer, s: &mut S) {
                 // HACK(eddyb): `Tag` enum duplicated between the
                 // two impls as there's no other place to stash it.
@@ -79,8 +79,8 @@ mod tag {
             }
         }
 
-        impl<S, $($($T: for<'s> DecodeMut<'a, 's, S>),+)*> DecodeMut<'a, '_, S>
-            for $name $(<$($T),+>)*
+        impl<S, $($($T: for<'s> DecodeMut<'a, 's, S>),+)?> DecodeMut<'a, '_, S>
+            for $name $(<$($T),+>)?
         {
             fn decode(r: &mut Reader<'a>, s: &mut S) -> Self {
                 // HACK(eddyb): `Tag` enum duplicated between the