From 17b6f4556ce32aa3239fabed2d92e8fb34c38793 Mon Sep 17 00:00:00 2001
From: Charlie Marsh <charlie.r.marsh@gmail.com>
Date: Fri, 28 Jul 2023 14:35:51 -0400
Subject: [PATCH] Ignore end-of-line file exemption comments

---
 crates/ruff/src/noqa.rs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/crates/ruff/src/noqa.rs b/crates/ruff/src/noqa.rs
index e609ceb4a8dfa6..0ba222e44cd10c 100644
--- a/crates/ruff/src/noqa.rs
+++ b/crates/ruff/src/noqa.rs
@@ -249,9 +249,39 @@ impl FileExemption {
                     warn!("Invalid `# ruff: noqa` directive at {path_display}:{line}: {err}");
                 }
                 Ok(Some(ParsedFileExemption::All)) => {
+                    if !locator
+                        .slice(TextRange::new(
+                            locator.line_start(range.start()),
+                            range.start(),
+                        ))
+                        .chars()
+                        .all(char::is_whitespace)
+                    {
+                        #[allow(deprecated)]
+                        let line = locator.compute_line_index(range.start());
+                        let path_display = relativize_path(path);
+                        warn!("Unexpected end-of-line `# ruff: noqa` directive at {path_display}:{line}");
+                        continue;
+                    }
+
                     return Some(Self::All);
                 }
                 Ok(Some(ParsedFileExemption::Codes(codes))) => {
+                    if !locator
+                        .slice(TextRange::new(
+                            locator.line_start(range.start()),
+                            range.start(),
+                        ))
+                        .chars()
+                        .all(char::is_whitespace)
+                    {
+                        #[allow(deprecated)]
+                        let line = locator.compute_line_index(range.start());
+                        let path_display = relativize_path(path);
+                        warn!("Unexpected end-of-line `# ruff: noqa` directive at {path_display}:{line}");
+                        continue;
+                    }
+
                     exempt_codes.extend(codes.into_iter().filter_map(|code| {
                         if let Ok(rule) = Rule::from_code(get_redirect_target(code).unwrap_or(code))
                         {