From cfd551cd257a15ccf0c8f00d166ddc60e9b0340f Mon Sep 17 00:00:00 2001
From: Tim Zhang <tim@hyper.sh>
Date: Thu, 18 Aug 2022 14:53:25 +0800
Subject: [PATCH] Signal that plugin supports proto3 optionals for 2.27

It's a backport of #626.

Fixes: #625

Signed-off-by: Tim Zhang <tim@hyper.sh>
---
 protobuf/src/compiler_plugin.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/protobuf/src/compiler_plugin.rs b/protobuf/src/compiler_plugin.rs
index 122eeb385..4cb549ef5 100644
--- a/protobuf/src/compiler_plugin.rs
+++ b/protobuf/src/compiler_plugin.rs
@@ -38,6 +38,7 @@ where
         parameter: req.get_parameter(),
     });
     let mut resp = CodeGeneratorResponse::new();
+    resp.set_supported_features(CodeGeneratorResponse_Feature::FEATURE_PROTO3_OPTIONAL as u64);
     resp.set_file(
         result
             .iter()