Add allow dead_code to the oneof case enum.

Without this it shows up as a spurious warning of dead code from never constructed enum cases (rustc can't 'see' that the value can come across from C++) PiperOrigin-RevId: 592064099
protocolbuffers · Dec 19, 2023 · 63c3fad · 63c3fad
1 parent 7315f6d
commit 63c3fad
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/src/google/protobuf/compiler/rust/oneof.cc b/src/google/protobuf/compiler/rust/oneof.cc
@@ -244,6 +244,7 @@ void GenerateOneofDefinition(Context& ctx, const OneofDescriptor& oneof) {
            R"rs(
       #[repr(C)]
       #[derive(Debug, Copy, Clone, PartialEq, Eq)]
+      #[allow(dead_code)]
       pub(super) enum $case_enum_name$ {
         $cases$
 
@@ -274,7 +275,8 @@ void GenerateOneofAccessors(Context& ctx, const OneofDescriptor& oneof) {
                     {"rs_getter", field.name()},
                     {"type", rs_type},
                 },
-                R"rs($Msg$_::$case_enum_name$::$case$ => $Msg$_::$view_enum_name$::$case$(self.$rs_getter$()),
+                R"rs(
+                $Msg$_::$case_enum_name$::$case$ => $Msg$_::$view_enum_name$::$case$(self.$rs_getter$()),
                 )rs");
           }
         }},
@@ -309,8 +311,9 @@ void GenerateOneofAccessors(Context& ctx, const OneofDescriptor& oneof) {
                   field.type() == FieldDescriptor::TYPE_MESSAGE
                       ? ""
                       : ".try_into_mut().unwrap()"}},
-                R"rs($Msg$_::$case_enum_name$::$case$ =>
-               $Msg$_::$mut_enum_name$::$case$(self.$rs_mut_getter$()$into_mut_transform$), )rs");
+                R"rs(
+                $Msg$_::$case_enum_name$::$case$ => $Msg$_::$mut_enum_name$::$case$(self.$rs_mut_getter$()$into_mut_transform$),
+               )rs");
           }
         }},
        {"case_thunk", Thunk(ctx, oneof, "case")}},