From 6ee7788513960ddf11254aca50da012b58df4583 Mon Sep 17 00:00:00 2001
From: Hirokazu Hata <h.hata.ai.t@gmail.com>
Date: Thu, 3 Jan 2019 21:15:23 +0900
Subject: Return type name when doc_text_for returns nothing

---
 crates/ra_lsp_server/src/main_loop/handlers.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'crates/ra_lsp_server/src')

diff --git a/crates/ra_lsp_server/src/main_loop/handlers.rs b/crates/ra_lsp_server/src/main_loop/handlers.rs
index b5792f3b8..705d1360f 100644
--- a/crates/ra_lsp_server/src/main_loop/handlers.rs
+++ b/crates/ra_lsp_server/src/main_loop/handlers.rs
@@ -525,6 +525,18 @@ pub fn handle_hover(
             contents: HoverContents::Scalar(MarkedString::String(result.join("\n\n---\n"))),
             range: Some(range),
         }));
+    } else {
+        let file_id = params.text_document.try_conv_with(&world)?;
+        let file_range = FileRange {
+            file_id,
+            range: rr.reference_range,
+        };
+        if let Some(type_name) = world.analysis().type_of(file_range)? {
+            return Ok(Some(Hover {
+                contents: HoverContents::Scalar(MarkedString::String(type_name)),
+                range: Some(range),
+            }));
+        }
     }
     Ok(None)
 }
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