From d903f37e732b1a46bc637e4c9ce39db8bdc6b880 Mon Sep 17 00:00:00 2001
From: light-ly <l136665@163.com>
Date: Sat, 26 Oct 2024 18:50:42 +0800
Subject: [PATCH] fix crash by rope bytes

---
 src/sources.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/sources.rs b/src/sources.rs
index 400a211..afc3e61 100644
--- a/src/sources.rs
+++ b/src/sources.rs
@@ -768,7 +768,8 @@ impl LSPSupport for Rope {
     }
     fn byte_to_pos(&self, byte_idx: usize) -> Position {
         // info!("byte_idx: {byte_idx}");
-        return self.char_to_pos(self.byte_to_char(min(byte_idx, self.len_bytes() - 1)));
+        let self_len = if self.len_bytes() != 0 { self.len_bytes() - 1 } else { 0 };
+        return self.char_to_pos(self.byte_to_char(min(byte_idx, self_len)));
     }
     fn char_to_pos(&self, char_idx: usize) -> Position {
         let line = self.char_to_line(char_idx);