add useful debug

rust-lang · Apr 15, 2018 · f93d5d3 · f93d5d3
1 parent 8e783da
commit f93d5d3
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/librustc_mir/borrow_check/mod.rs b/src/librustc_mir/borrow_check/mod.rs
@@ -843,6 +843,14 @@ impl<'cx, 'gcx, 'tcx> MirBorrowckCtxt<'cx, 'gcx, 'tcx> {
         rw: ReadOrWrite,
         flow_state: &Flows<'cx, 'gcx, 'tcx>,
     ) -> bool {
+        debug!(
+            "check_access_for_conflict(context={:?}, place_span={:?}, sd={:?}, rw={:?})",
+            context,
+            place_span,
+            sd,
+            rw,
+        );
+
         let mut error_reported = false;
         self.each_borrow_involving_path(
             context,