fixes for users of Polymer.Class

Polymer · Jan 31, 2017 · 0f53bef · 0f53bef
1 parent 13f36c7
commit 0f53bef
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/src/lib/polymer-bootstrap.html b/src/lib/polymer-bootstrap.html
@@ -70,6 +70,14 @@
     }
 
     Polymer.Class = function(prototype) {
+      /*
+      factoryImpl is required for a class constructor to be returned
+      Because users of Polymer.Class always expect a class constructor,
+      always provide a factoryImpl function
+      */
+      if (!prototype.factoryImpl) {
+        prototype.factoryImpl = function() {};
+      }
       return desugar(prototype).constructor;
     }
 

diff --git a/src/micro/properties.html b/src/micro/properties.html
@@ -177,7 +177,8 @@
  * @memberof! feature: properties
  */
 (function() {
-  var propertiesDesc = {configurable: true, writable: true};
+  var propertiesDesc = {configurable: true, writable: true, enumerable: true,
+    value: {}};
   Polymer.BaseDescriptors.properties = propertiesDesc;
   Object.defineProperty(Polymer.Base, 'properties', propertiesDesc);
 })();