fix: make signature info response conform to spec

[rust.git] / crates / rust-analyzer / src / to_proto.rs

diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index fc3e25064f3a7a6205dfab206e37b909521de852..9e94793a6187e64bcf95065f66c0e91b70d74fc0 100644 (file)
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -399,7 +399,7 @@ pub(crate) fn signature_help(
     };
     lsp_types::SignatureHelp {
         signatures: vec![signature],
-        active_signature: None,
+        active_signature: Some(0),
         active_parameter,
     }
 }