Auto merge of #53815 - F001:if-let-guard, r=petrochenkov

[rust.git] / src / librustc / middle / expr_use_visitor.rs

diff --git a/src/librustc/middle/expr_use_visitor.rs b/src/librustc/middle/expr_use_visitor.rs
index 90692bcd30103303fa1df4cecade47c976500d7d..356992b22146d67b02d63c409b07787c93b46774 100644 (file)
--- a/src/librustc/middle/expr_use_visitor.rs
+++ b/src/librustc/middle/expr_use_visitor.rs
@@ -792,7 +792,9 @@ fn walk_arm(&mut self, discr_cmt: mc::cmt<'tcx>, arm: &hir::Arm, mode: MatchMode
         }
 
         if let Some(ref guard) = arm.guard {
-            self.consume_expr(&guard);
+            match guard {
+                hir::Guard::If(ref e) => self.consume_expr(e),
+            }
         }
 
         self.consume_expr(&arm.body);