add JsArray and JsObject.asJsMap()

pkg/browser/lib/interop.js

Index: pkg/browser/lib/interop.js
diff --git a/pkg/browser/lib/interop.js b/pkg/browser/lib/interop.js
index 40e1700ad76d53fe7d69ec4819c10387678d1789..4f3d6c4f9d6a3ed01bfac985378e2b2237eaa36a 100644
--- a/pkg/browser/lib/interop.js
+++ b/pkg/browser/lib/interop.js
@@ -300,6 +300,33 @@ function DartProxy(o) {
           // Direct function invocation.
           return [ 'return',
               serialize(receiver.apply(args[0], args.slice(1))) ];
+        } else if (kind == 'asMap') {
+          if (member == 'containsValue') {
+            var found = false;
+            for (var p in receiver) {
+              if (receiver[p] === args[0]) {
+                found = true;
+                break;
+              }
+            }
+            return [ 'return', serialize(found) ];
+          } else if (member == 'addAll') {
+            var map = args[0];
+            for (var p in map) {
+              receiver[p] = map[p];
+            }
+            return [ 'return', null ];
+          } else if (member == 'values') {
+            var values = [];
+            for (var p in receiver) {
+              values.push(receiver[p]);
+            }
+            return [ 'return', serialize(values) ];
+          } else if (member == 'length') {
+            return [ 'return', serialize(Object.keys(receiver).length) ];
+          } else {
+            return [ 'throws', 'unsupported operation'];
+          }
         } else if (member == '[]' && args.length == 1) {
           // Index getter.
           return [ 'return', serialize(receiver[args[0]]) ];
@@ -336,6 +363,7 @@ function DartProxy(o) {
   // - sendport -> sendport
   // - Function -> [ 'funcref', function-id, sendport ]
   // - Object -> [ 'objref', object-id, sendport ]
+  // - Array -> [ 'arrayref', object-id, sendport ]
   function serialize(message) {
     if (message == null) {
       return null;  // Convert undefined to null.
@@ -364,7 +392,7 @@ function DartProxy(o) {
       return [ 'objref', message.id, message.port ];
     } else {
       // Local object proxy.
-      return [ 'objref',
+      return [ message instanceof Array ? 'arrayref' : 'objref',
                proxiedObjectTable.add(message),
                proxiedObjectTable.sendPort ];
     }