From f504a8706e91d9f817a834ee5b89c9a341a2ff35 Mon Sep 17 00:00:00 2001
From: Deukhoofd <Deukhoofd@gmail.com>
Date: Fri, 7 Dec 2018 15:17:24 +0100
Subject: [PATCH] Fix null reference error in evaluator

---
 Upsilon/Evaluator/Evaluator.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Upsilon/Evaluator/Evaluator.cs b/Upsilon/Evaluator/Evaluator.cs
index e11defe..d748d4c 100644
--- a/Upsilon/Evaluator/Evaluator.cs
+++ b/Upsilon/Evaluator/Evaluator.cs
@@ -632,7 +632,11 @@ namespace Upsilon.Evaluator
                 while (enumerator.MoveNext())
                 {
                     var current = enumerator.Current;
-                    if (current == null || current.Type != Type.Table)
+                    if (current == null)
+                    {
+                        throw new Exception($"Can't assign result value of nothing to multiple values");
+                    }
+                    if (current.Type != Type.Table)
                     {
                         throw new Exception($"Can't assign result value with type '{current.Type}' to multiple values");
                     }