address review feedback (sort_by_key is so much cleaner here than `…

…sort_by`!).
rust-lang · Jul 31, 2018 · 779792f · 779792f
1 parent faf841a
commit 779792f
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/src/librustc_mir/borrow_check/mod.rs b/src/librustc_mir/borrow_check/mod.rs
@@ -331,9 +331,7 @@ fn do_mir_borrowck<'a, 'gcx, 'tcx>(
     }
 
     if mbcx.errors_buffer.len() > 0 {
-        mbcx.errors_buffer.sort_by(|diag1, diag2| {
-            diag1.span.primary_span().cmp(&diag2.span.primary_span())
-        });
+        mbcx.errors_buffer.sort_by_key(|diag| diag.span.primary_span());
 
         if tcx.migrate_borrowck() {
             match tcx.borrowck(def_id).signalled_any_error {