From 3d91c99c3e64460d292e0393e89d723feefe10aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bla=C5=BE=20Hrastnik?= <blaz@mxxn.io>
Date: Thu, 2 Jun 2022 11:30:22 +0900
Subject: [PATCH] fix: lsp: Sort edits by start range, Omnisharp sends them in
 reverse

---
 helix-lsp/src/lib.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/helix-lsp/src/lib.rs b/helix-lsp/src/lib.rs
index f33646c8..2bc554e6 100644
--- a/helix-lsp/src/lib.rs
+++ b/helix-lsp/src/lib.rs
@@ -173,9 +173,13 @@ pub mod util {
 
     pub fn generate_transaction_from_edits(
         doc: &Rope,
-        edits: Vec<lsp::TextEdit>,
+        mut edits: Vec<lsp::TextEdit>,
         offset_encoding: OffsetEncoding,
     ) -> Transaction {
+        // Sort edits by start range, since some LSPs (Omnisharp) send them
+        // in reverse order.
+        edits.sort_unstable_by_key(|edit| edit.range.start);
+
         Transaction::change(
             doc,
             edits.into_iter().map(|edit| {