From 65ff50bc0485ec66bb7187eddfcb306897c3089e Mon Sep 17 00:00:00 2001
From: Cody Averett <codyaverett@gmail.com>
Date: Mon, 13 Nov 2017 05:44:10 -0600
Subject: [PATCH] Added check for cyclic reference issue

I was thinking this should resolve #2
This helped me find issues in my schema at least.
---
 src/swaggerbank.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/swaggerbank.js b/src/swaggerbank.js
index fd6b01f..2b713d1 100644
--- a/src/swaggerbank.js
+++ b/src/swaggerbank.js
@@ -236,6 +236,13 @@ class API {
           console.error('Your object schema is undefined. This most likely means you are referencing an object that doesn\'t have a definition');
           process.exit(-1);
         }
+        
+        // Does object schema reference itself?
+        if (objectName === refName) {
+          console.error(`Your object ${objectName} has an internal \$ref to itself (${refName})`);
+          process.exit(-1);
+        }
+        
         // Construct our template recursively for the object that is defined at the $ref tag location
         const objectTemplate = this.constructTemplateForRef(objectSchema, objectName);
         refTemplate[property] = { 'type': 'object', 'format': objectTemplate };