From 22cee4974765e91218f786fe07eb0a520e355dee Mon Sep 17 00:00:00 2001
From: Torsten Blindert <info@by-torsten.com>
Date: Thu, 6 Dec 2018 00:55:14 +0700
Subject: [PATCH] BUGFIX: expect ->getType() to throw

(cherry picked from commit 62b003643779246403c0fd71d7e7486d94c50835)
---
 src/Utils/SchemaExtender.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/Utils/SchemaExtender.php b/src/Utils/SchemaExtender.php
index fab006e..110e750 100644
--- a/src/Utils/SchemaExtender.php
+++ b/src/Utils/SchemaExtender.php
@@ -513,7 +513,14 @@ class SchemaExtender
                 $schemaExtensions[] = $def;
             } elseif ($def instanceof TypeDefinitionNode) {
                 $typeName = isset($def->name) ? $def->name->value : null;
-                if ($schema->getType($typeName)) {
+
+                try {
+                    $type = $schema->getType($typeName);
+                } catch (Error $error) {
+                    $type = null;
+                }
+
+                if ($type) {
                     throw new Error('Type "' . $typeName . '" already exists in the schema. It cannot also be defined in this type definition.', [$def]);
                 }
                 $typeDefinitionMap[$typeName] = $def;