Use shared container to manage imports/exports.

src/date.js

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file relies on the fact that the following declarations have been made
 // in v8natives.js:
 // var $isFinite = GlobalIsFinite;
 
 var $createDate;
 
 // -------------------------------------------------------------------
 
-(function(global, shared, exports) {
+(function(global, utils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
 // -------------------------------------------------------------------
 // Imports
 
 var GlobalDate = global.Date;
-var InternalArray = shared.InternalArray;
+var InternalArray = utils.InternalArray;
+
+var MathAbs;
+var MathFloor;
+
+utils.Import(function(from) {
+  MathAbs = from.MathAbs;
+  MathFloor = from.MathFloor;
+});
 
 // -------------------------------------------------------------------
 
 // This file contains date support implemented in JavaScript.
 
 var timezone_cache_time = NAN;
 var timezone_cache_timezone;
 
 function LocalTimezone(t) {
   if (NUMBER_IS_NAN(t)) return "";
@@ skipping 60 matching lines @@
 
 
 // ECMA 262 - 15.9.1.13
 function MakeDate(day, time) {
   var time = day * msPerDay + time;
   // Some of our runtime funtions for computing UTC(time) rely on
   // times not being significantly larger than MAX_TIME_MS. If there
   // is no way that the time can be within range even after UTC
   // conversion we return NaN immediately instead of relying on
   // TimeClip to do it.
-  if ($abs(time) > MAX_TIME_BEFORE_UTC) return NAN;
+  if (MathAbs(time) > MAX_TIME_BEFORE_UTC) return NAN;
   return time;
 }
 
 
 // ECMA 262 - 15.9.1.14
 function TimeClip(time) {
   if (!$isFinite(time)) return NAN;
-  if ($abs(time) > MAX_TIME_MS) return NAN;
+  if (MathAbs(time) > MAX_TIME_MS) return NAN;
   return TO_INTEGER(time);
 }
 
 
 // The Date cache is used to limit the cost of parsing the same Date
 // strings over and over again.
 var Date_cache = {
   // Cached time value.
   time: 0,
   // String input for which the cached time is valid.
@@ skipping 106 matching lines @@
       + TwoDigitString(UTC_MIN(date)) + ':'
       + TwoDigitString(UTC_SEC(date));
 }
 
 
 function LocalTimezoneString(date) {
   var timezone = LocalTimezone(UTC_DATE_VALUE(date));
 
   var timezoneOffset = -TIMEZONE_OFFSET(date);
   var sign = (timezoneOffset >= 0) ? 1 : -1;
-  var hours = $floor((sign * timezoneOffset)/60);
-  var min   = $floor((sign * timezoneOffset)%60);
+  var hours = MathFloor((sign * timezoneOffset)/60);
+  var min   = MathFloor((sign * timezoneOffset)%60);
   var gmt = ' GMT' + ((sign == 1) ? '+' : '-') +
       TwoDigitString(hours) + TwoDigitString(min);
   return gmt + ' (' +  timezone + ')';
 }
 
 
 function DatePrintString(date) {
   return DateString(date) + ' ' + TimeString(date);
 }
 
@@ skipping 572 matching lines @@
   "getYear", DateGetYear,
   "setYear", DateSetYear,
   "toISOString", DateToISOString,
   "toJSON", DateToJSON
 ]);
 
 // Expose to the global scope.
 $createDate = CreateDate;
 
 })