2 files changed, 11 insertions, 1 deletions

diff --git a/crates/gen_lsp_server/src/lib.rs b/crates/gen_lsp_server/src/lib.rs
index a31e90f35..b47db0df4 100644
--- a/crates/gen_lsp_server/src/lib.rs
+++ b/crates/gen_lsp_server/src/lib.rs
@@ -21,7 +21,7 @@ use languageserver_types::{
 
 pub type Result<T> = ::std::result::Result<T, failure::Error>;
 pub use {
-    msg::{RawMessage, RawRequest, RawResponse, RawResponseError, RawNotification},
+    msg::{RawMessage, RawRequest, RawResponse, RawResponseError, RawNotification, ErrorCode},
     stdio::{stdio_transport, Threads},
 };
 
diff --git a/crates/gen_lsp_server/src/msg.rs b/crates/gen_lsp_server/src/msg.rs
index 9426e98ec..533d7da3e 100644
--- a/crates/gen_lsp_server/src/msg.rs
+++ b/crates/gen_lsp_server/src/msg.rs
@@ -120,6 +120,16 @@ impl RawResponse {
 }
 
 impl RawNotification {
+    pub fn new<N>(params: N::Params) -> RawNotification
+    where
+        N: Notification,
+        N::Params: Serialize,
+    {
+        RawNotification {
+            method: N::METHOD.to_string(),
+            params: to_value(&params).unwrap(),
+        }
+    }
     pub fn cast<N>(self) -> ::std::result::Result<N::Params, RawNotification>
     where
         N: Notification,