From 7298b41c456912d672257578ffe49b074fbe1d51 Mon Sep 17 00:00:00 2001
From: Matthew Brown <github@muglug.com>
Date: Mon, 12 Sep 2016 12:23:51 -0400
Subject: [PATCH] Do not throw access errors when array might be empty

---
 src/Psalm/Checker/StatementsChecker.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Psalm/Checker/StatementsChecker.php b/src/Psalm/Checker/StatementsChecker.php
index eed81520c..d8247ffd8 100644
--- a/src/Psalm/Checker/StatementsChecker.php
+++ b/src/Psalm/Checker/StatementsChecker.php
@@ -3648,7 +3648,7 @@ class StatementsChecker
         }
 
         if ($stmt->dim) {
-            if (isset($stmt->dim->inferredType) && $key_type) {
+            if (isset($stmt->dim->inferredType) && $key_type && !$key_type->isEmpty()) {
                 foreach ($stmt->dim->inferredType->types as $at) {
                     if ($at->isMixed()) {
                         // @todo emit issue