Add checks and balances

Author: nathanmarks

index.js

@@ -12,11 +12,14 @@ function babelPluginTransformReactEs6ClassDisplayName (babel) {
 
 function addDisplayName (t) {
   if (
-    this.node.superClass.name === 'Component' ||
+    this.node.superClass &&
     (
-      this.node.superClass.object &&
-      this.node.superClass.object.name === 'React' &&
-      this.node.superClass.property.name === 'Component'
+      this.node.superClass.name === 'Component' ||
+      (
+        this.node.superClass.object &&
+        this.node.superClass.object.name === 'React' &&
+        this.node.superClass.property.name === 'Component'
+      )
     )
   ) {
     this.insertAfter([