Isolates: allow sending of arbitrary objects in dart2js.

tests/isolate/serialization_test.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Dart test program for testing serialization of messages without spawning
-// isolates.
-
-// ---------------------------------------------------------------------------
-// Serialization test.
-// ---------------------------------------------------------------------------
-library SerializationTest;
-import "package:expect/expect.dart";
-import 'dart:isolate';
-
-main() {
-  // TODO(sigmund): fix once we can disable privacy for testing (bug #1882)
-  testAllTypes(TestingOnly.copy);
-  testAllTypes(TestingOnly.serialize);
-}
-
-void testAllTypes(Function f) {
-  copyAndVerify(0, f);
-  copyAndVerify(499, f);
-  copyAndVerify(true, f);
-  copyAndVerify(false, f);
-  copyAndVerify("", f);
-  copyAndVerify("foo", f);
-  copyAndVerify([], f);
-  copyAndVerify([1, 2], f);
-  copyAndVerify([[]], f);
-  copyAndVerify([1, []], f);
-  copyAndVerify({}, f);
-  copyAndVerify({ 'a': 3 }, f);
-  copyAndVerify({ 'a': 3, 'b': 5, 'c': 8 }, f);
-  copyAndVerify({ 'a': [1, 2] }, f);
-  copyAndVerify({ 'b': { 'c' : 99 } }, f);
-  copyAndVerify([ { 'a': 499 }, { 'b': 42 } ], f);
-
-  var port = new ReceivePort();
-  Expect.throws(() => f(port));
-  port.close();
-
-  var a = [ 1, 3, 5 ];
-  var b = { 'b': 49 };
-  var c = [ a, b, a, b, a ];
-  var copied = f(c);
-  verify(c, copied);
-  Expect.isFalse(identical(c, copied));
-  Expect.identical(copied[0], copied[2]);
-  Expect.identical(copied[0], copied[4]);
-  Expect.identical(copied[1], copied[3]);
-}
-
-void copyAndVerify(o, Function f) {
-  var copy = f(o);
-  verify(o, copy);
-}
-
-void verify(o, copy) {
-  if ((o is bool) || (o is num) || (o is String)) {
-    Expect.equals(o, copy);
-  } else if (o is List) {
-    Expect.isTrue(copy is List);
-    Expect.equals(o.length, copy.length);
-    for (int i = 0; i < o.length; i++) {
-      verify(o[i], copy[i]);
-    }
-  } else if (o is Map) {
-    Expect.isTrue(copy is Map);
-    Expect.equals(o.length, copy.length);
-    o.forEach((key, value) {
-      Expect.isTrue(copy.containsKey(key));
-      verify(value, copy[key]);
-    });
-  } else {
-    Expect.fail("Unexpected object encountered");
-  }
-}