Protect against incomplete properties in JSON

Author: jdesrosiers

lib/instance.js

@@ -118,7 +118,9 @@ export const values = function* (node) {
   }
 
   for (const property of node.children) {
-    yield property.children[1];
+    if (property.children[1]) {
+      yield property.children[1];
+    }
   }
 };
 
@@ -128,7 +130,9 @@ export const entries = function* (node) {
   }
 
   for (const property of node.children) {
-    yield property.children;
+    if (property.children.length === 2) {
+      yield property.children;
+    }
   }
 };