From 8332e60ca99187b1c08be50173357b2f1cc68dc4 Mon Sep 17 00:00:00 2001
From: Evan Simkowitz <esimkowitz@users.noreply.github.com>
Date: Mon, 9 Jun 2025 06:00:17 -0700
Subject: [PATCH] language: Don't add final newline on format for an empty
 buffer (#32320)

Closes #32313

Release Notes:

- Fixed newline getting added on format to empty files
---
 crates/language/src/buffer.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/crates/language/src/buffer.rs b/crates/language/src/buffer.rs
index 0f43ff5c98..4e88f351c8 100644
--- a/crates/language/src/buffer.rs
+++ b/crates/language/src/buffer.rs
@@ -1874,9 +1874,12 @@ impl Buffer {
     }
 
     /// Ensures that the buffer ends with a single newline character, and
-    /// no other whitespace.
+    /// no other whitespace. Skips if the buffer is empty.
     pub fn ensure_final_newline(&mut self, cx: &mut Context<Self>) {
         let len = self.len();
+        if len == 0 {
+            return;
+        }
         let mut offset = len;
         for chunk in self.as_rope().reversed_chunks_in_range(0..len) {
             let non_whitespace_len = chunk