--- a/tcb.js	Mon Jun 22 13:17:34 2009 -0700
+++ b/tcb.js	Mon Jun 22 13:29:45 2009 -0700
@@ -128,10 +128,15 @@
     case "__parent__":
       return null;
     default:
+      // TODO: This will bypass any getters/setters.
       return this._maybeWrap(lookupProperty(wrappee, id));
     }
   },
 
+  addProperty: function() {
+    throw new Error("Can't add properties to this object.");
+  },
+
   setProperty: function() {
     throw new Error("Can't set properties on this object.");
   },
@@ -140,6 +145,32 @@
     throw new Error("Can't delete properties on this object.");
   },
 
+  equality: function(wrappee, wrapper, other) {
+    return wrappee == other;
+  },
+
+  enumerate: function() {
+    throw new Error("Enumeration is not implemented.");
+  },
+
+  iteratorObject: function(wrappee, wrapper, keysOnly) {
+    if (keysOnly) {
+      function keyIterator() {
+        // TODO: Is this secure?
+        for (name in wrappee)
+          yield name;
+      }
+      return keyIterator();
+    } else {
+      function keyValueIterator() {
+        // TODO: Is this secure?
+        for (name in wrappee)
+          yield [name, wrappee[name]];
+      }
+      return keyValueIterator();
+    }
+  },
+
   _callOrConstruct: function(wrapee, wrapper, thisObj, args) {
     if (typeof(this._wrappee) == "function") {
       var wrappedArgs = [];