From 1116c9a0e9992d0dea8dac87de95c8a74c093cff Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Wed, 6 May 2020 13:08:37 +0200
Subject: Fix TODO

---
 crates/ra_assists/src/assist_ctx.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'crates/ra_assists/src/assist_ctx.rs')

diff --git a/crates/ra_assists/src/assist_ctx.rs b/crates/ra_assists/src/assist_ctx.rs
index 600e5689c..cbf1963b7 100644
--- a/crates/ra_assists/src/assist_ctx.rs
+++ b/crates/ra_assists/src/assist_ctx.rs
@@ -256,10 +256,10 @@ impl<'a, 'b> ActionBuilder<'a, 'b> {
     }
 
     fn build(self) -> AssistAction {
-        AssistAction {
-            edit: self.edit.finish(),
-            cursor_position: self.cursor_position,
-            file: self.file,
+        let edit = self.edit.finish();
+        if edit.is_empty() && self.cursor_position.is_none() {
+            panic!("Only call `add_assist` if the assist can be applied")
         }
+        AssistAction { edit, cursor_position: self.cursor_position, file: self.file }
     }
 }
-- 
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