fix(lsp): restart TS language service when caching dependencies (#14979)

2 files changed, 17 insertions, 3 deletions

diff --git a/cli/lsp/language_server.rs b/cli/lsp/language_server.rs
index fdda1aeec..30a2ce253 100644
--- a/cli/lsp/language_server.rs
+++ b/cli/lsp/language_server.rs
@@ -2814,9 +2814,16 @@ impl Inner {
       self.client.show_message(MessageType::WARNING, err).await;
     }
 
-    // now that we have dependencies loaded, we need to re-analyze them and
-    // invalidate some diagnostics
-    self.diagnostics_server.invalidate(&[referrer]);
+    // Now that we have dependencies loaded, we need to re-analyze all the files.
+    // For that we're invalidating all the existing diagnostics and restarting
+    // the language server for TypeScript (as it might hold to some stale
+    // documents).
+    self.diagnostics_server.invalidate_all();
+    let _: bool = self
+      .ts_server
+      .request(self.snapshot(), tsc::RequestMethod::Restart)
+      .await
+      .unwrap();
     self.send_diagnostics_update();
     self.send_testing_update();
 
diff --git a/cli/lsp/tsc.rs b/cli/lsp/tsc.rs
index 2a5bdc2d8..76e428b2f 100644
--- a/cli/lsp/tsc.rs
+++ b/cli/lsp/tsc.rs
@@ -2871,6 +2871,9 @@ pub enum RequestMethod {
   ProvideCallHierarchyIncomingCalls((ModuleSpecifier, u32)),
   /// Resolve outgoing call hierarchy items for a specific position.
   ProvideCallHierarchyOutgoingCalls((ModuleSpecifier, u32)),
+
+  // Special request, used only internally by the LSP
+  Restart,
 }
 
 impl RequestMethod {
@@ -3084,6 +3087,10 @@ impl RequestMethod {
           "position": position
         })
       }
+      RequestMethod::Restart => json!({
+        "id": id,
+        "method": "restart",
+      }),
     }
   }
 }