From 9b046e4c80229f65aa9affa2a8b25ce11d44dc34 Mon Sep 17 00:00:00 2001
From: Gajus Kuizinas <gajus@gajus.com>
Date: Tue, 12 Nov 2019 16:46:20 +0000
Subject: [PATCH] fix: handle the case where superTypeParameters is undefined

---
 src/rules/requireReadonlyReactProps.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rules/requireReadonlyReactProps.js b/src/rules/requireReadonlyReactProps.js
index 081f9b8c..8d545fba 100644
--- a/src/rules/requireReadonlyReactProps.js
+++ b/src/rules/requireReadonlyReactProps.js
@@ -27,7 +27,7 @@ const create = (context) => {
   const reportedFunctionalComponents = [];
 
   const isReadOnlyClassProp = (node) => {
-    const id = node.superTypeParameters.params[0].id;
+    const id = node.superTypeParameters && node.superTypeParameters.params[0].id;
 
     return id && !reReadOnly.test(id.name) && !readOnlyTypes.includes(id.name) && foundTypes.includes(id.name);
   };