From d3bfa3e063b7862e691bff099c61a7fe5cb48181 Mon Sep 17 00:00:00 2001
From: Eduardo Farinati <afxph8fc@duck.com>
Date: Fri, 5 Apr 2024 23:17:22 -0300
Subject: [PATCH] Fix crash on lsp text edits with invalid ranges (#9649)

---
 helix-lsp/src/lib.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/helix-lsp/src/lib.rs b/helix-lsp/src/lib.rs
index c58d967b6..f1ffcdf88 100644
--- a/helix-lsp/src/lib.rs
+++ b/helix-lsp/src/lib.rs
@@ -539,6 +539,16 @@ pub fn generate_transaction_from_edits(
                 } else {
                     return (0, 0, None);
                 };
+
+                if start > end {
+                    log::error!(
+                        "Invalid LSP text edit start {:?} > end {:?}, discarding",
+                        start,
+                        end
+                    );
+                    return (0, 0, None);
+                }
+
                 (start, end, replacement)
             }),
         )