Disable AST unused mut check when using MIR borrowck

rust-lang · Apr 28, 2018 · 3e423d0 · 3e423d0
1 parent 2338adf
commit 3e423d0
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/librustc_borrowck/borrowck/mod.rs b/src/librustc_borrowck/borrowck/mod.rs
@@ -144,7 +144,10 @@ fn borrowck<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, owner_def_id: DefId)
     {
         check_loans::check_loans(&mut bccx, &loan_dfcx, &flowed_moves, &all_loans, body);
     }
-    unused::check(&mut bccx, body);
+
+    if !tcx.use_mir_borrowck() {
+        unused::check(&mut bccx, body);
+    }
 
     Lrc::new(BorrowCheckResult {
         used_mut_nodes: bccx.used_mut_nodes.into_inner(),