1 files changed, 6 insertions, 1 deletions

diff --git a/crates/ra_lsp_server/src/server_world.rs b/crates/ra_lsp_server/src/server_world.rs
index 45ad8e24e..b2808b817 100644
--- a/crates/ra_lsp_server/src/server_world.rs
+++ b/crates/ra_lsp_server/src/server_world.rs
@@ -1,5 +1,5 @@
 use std::{
-    path::PathBuf,
+    path::{Path, PathBuf},
     sync::Arc,
 };
 
@@ -195,4 +195,9 @@ impl ServerWorld {
         res.push_str(&self.analysis.status());
         res
     }
+
+    pub fn workspace_root_for(&self, file_id: FileId) -> Option<&Path> {
+        let path = self.vfs.read().file2path(VfsFile(file_id.0.into()));
+        self.workspaces.iter().find_map(|ws| ws.workspace_root_for(&path))
+    }
 }