Mock up all remaining core library implementation classes.

dart/frog/leg/lib/js_helper.dart

 // Copyright (c) 2012, 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.
 
 #library('js_helper');
 
 $throw(String msg) {
   var e = JS("Object", @"new Error($0)", msg);
   var hasTrace = JS("bool", @"Error.captureStackTrace !== (void 0)");
   if (hasTrace) {
@@ skipping 320 matching lines @@
   static List newList(int length) {
     if (length == null) return JS("Object", @"new Array()");
     if (!(length is int)) throw "Invalid argument";
     if (length < 0) throw "Negative size";
     return JS("Object", @"new Array($0)", length);
   }
 
   static num dateNow() => JS("num", @"Date.now()");
 
   static num mathFloor(num value) => JS("num", @"Math.floor($0)", value);
+
+  static brokenDownDateToSecondsSinceEpoch(
+      int years, int month, int day, int hours, int minutes, int seconds,
+      bool isUtc) {
+    throw 'Primitives.brokenDownDateToSecondsSinceEpoch is not implemented';
+  }
+
+  static int getCurrentMs() {
+    throw 'Primitives.getCurrentMs is not implemented';
+  }
+
+  static int getYear(int secondsSinceEpoch, bool isUtc) {
+    throw 'Primitives.getYear is not implemented';
+  }
+
+  static int getMonth(int secondsSinceEpoch, bool isUtc) {
+    throw 'Primitives.getMonth is not implemented';
+  }
+
+  static int getDay_(int secondsSinceEpoch, bool isUtc);
+
+  static int getHours(int secondsSinceEpoch, bool isUtc) {
+    throw 'Primitives.getHours is not implemented';
+  }
+
+  static int getMinutes(int secondsSinceEpoch, bool isUtc) {
+    throw 'Primitives.getMinutes is not implemented';
+  }
+
+  static int getSeconds(int secondsSinceEpoch, bool isUtc) {
+    throw 'Primitives.getSeconds is not implemented';
+  }
 }
 
 builtin$compareTo$1(a, b) {
   if (checkNumbers(a, b, 'illegal argument')) {
     if (a < b) {
       return -1;
     } else if (a > b) {
       return 1;
     } else if (a == b) {
       if (a == 0) {
@@ skipping 11 matching lines @@
       return 1;
     } else {
       return -1;
     }
   } else if (a is String) {
     throw 'String.compareTo is not implemented';
   } else {
     return UNINTERCEPTED(a.compareTo(b));
   }
 }