From cb6acde8790dc819380411e35b4b989e7e5d7898 Mon Sep 17 00:00:00 2001
From: Mick Jordan <mick.jordan@oracle.com>
Date: Wed, 22 Jun 2016 15:20:57 -0700
Subject: [PATCH] fix to previous commit

---
 .../src/com/oracle/truffle/r/runtime/data/RPairList.java       | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/data/RPairList.java b/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/data/RPairList.java
index 8b29ba9764..36f89277a9 100644
--- a/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/data/RPairList.java
+++ b/com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/data/RPairList.java
@@ -73,7 +73,7 @@ public class RPairList extends RAttributeStorage implements RAbstractContainer {
     }
 
     /**
-     * Creates a pairlist of length {@code n > 0}.
+     * Creates a pairlist of length {@code n > 0} of type {@code LANGSXP}.
      */
     public static RPairList create(int n) {
         assert n > 0;
@@ -88,6 +88,7 @@ public class RPairList extends RAttributeStorage implements RAbstractContainer {
             }
             pl = next;
         }
+        head.type = SEXPTYPE.LANGSXP;
         return head;
     }
 
-- 
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