From 4f3b63edd4470415486fdbe1d1a89b9f935c776d Mon Sep 17 00:00:00 2001
From: Martin Fischer <martin@push-f.com>
Date: Thu, 26 Jan 2023 19:35:52 +0100
Subject: [PATCH] fix: --explain reporting the wrong linter

Fixes a regression introduced in 4e4643aa5d1587c024ce98f0c51363a4830b491d.

We want the longest prefixes to be checked first so we of course
have to reverse the sorting when sorting by prefix length.

Fixes #2210.
---
 ruff_macros/src/rule_namespace.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ruff_macros/src/rule_namespace.rs b/ruff_macros/src/rule_namespace.rs
index ae77da7955..b4364652d9 100644
--- a/ruff_macros/src/rule_namespace.rs
+++ b/ruff_macros/src/rule_namespace.rs
@@ -1,3 +1,4 @@
+use std::cmp::Reverse;
 use std::collections::HashSet;
 
 use proc_macro2::{Ident, Span};
@@ -70,7 +71,7 @@ pub fn derive_impl(input: DeriveInput) -> syn::Result<proc_macro2::TokenStream>
         });
     }
 
-    parsed.sort_by_key(|(prefix, _)| prefix.len());
+    parsed.sort_by_key(|(prefix, _)| Reverse(prefix.len()));
 
     let mut if_statements = quote!();
     let mut into_iter_match_arms = quote!();