From 0ca9bf394006fe635a4a76ca6fa78a70633666f0 Mon Sep 17 00:00:00 2001
From: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
Date: Sun, 6 Mar 2016 15:54:44 +0300
Subject: [PATCH] Fix overflow in type checking of tuple patterns

---
 src/librustc_typeck/check/_match.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustc_typeck/check/_match.rs b/src/librustc_typeck/check/_match.rs
index 693703c7236..9030a6f222b 100644
--- a/src/librustc_typeck/check/_match.rs
+++ b/src/librustc_typeck/check/_match.rs
@@ -275,7 +275,7 @@ impl<'a, 'gcx, 'tcx> PatCtxt<'a, 'gcx, 'tcx> {
                 let pat_ty = tcx.mk_tup(element_tys.clone());
                 self.write_ty(pat.id, pat_ty);
                 self.demand_eqtype(pat.span, expected, pat_ty);
-                for (i, elem) in elements.iter().enumerate_and_adjust(expected_len, ddpos) {
+                for (i, elem) in elements.iter().enumerate_and_adjust(max_len, ddpos) {
                     self.check_pat(elem, &element_tys[i]);
                 }
             }