From 99e84999574ec522c07a864e5734b5f1311768cb Mon Sep 17 00:00:00 2001
From: gfreezy <gfreezy@gmail.com>
Date: Fri, 18 Jan 2019 16:32:36 +0800
Subject: [PATCH] more idiomatic code

---
 crates/ra_lsp_server/src/main_loop/handlers.rs | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/crates/ra_lsp_server/src/main_loop/handlers.rs b/crates/ra_lsp_server/src/main_loop/handlers.rs
index 9cdca82c4fe..8f9db68a2f1 100644
--- a/crates/ra_lsp_server/src/main_loop/handlers.rs
+++ b/crates/ra_lsp_server/src/main_loop/handlers.rs
@@ -465,14 +465,15 @@ pub fn handle_rename(world: ServerWorld, params: RenameParams) -> Result<Option<
         .into());
     }
 
-    let change = world
+    let optional_change = world
         .analysis()
         .rename(FilePosition { file_id, offset }, &*params.new_name)?;
-    if change.is_none() {
-        return Ok(None);
-    }
+    let change = match optional_change {
+        None => return Ok(None),
+        Some(it) => it,
+    };
 
-    let source_change_req = change.unwrap().try_conv_with(&world)?;
+    let source_change_req = change.try_conv_with(&world)?;
 
     Ok(Some(source_change_req.workspace_edit))
 }