Make most arguments to Date constructor optional.

runtime/lib/date.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 core library.
 
 class TimeZoneImplementation implements TimeZone {
   const TimeZoneImplementation.utc() : isUtc = true;
   TimeZoneImplementation.local() : isUtc = false {}
 
   bool operator ==(Object other) {
     if (!(other is TimeZoneImplementation)) return false;
     return isUtc == other.isUtc;
   }
 
   final bool isUtc;
 }
 
 // JavaScript implementation of DateImplementation.
 class DateImplementation implements Date {
   factory DateImplementation(int years,
-                             int month,
-                             int day,
-                             int hours,
-                             int minutes,
-                             int seconds,
-                             int milliseconds) {
+                             [int month = 1,
+                              int day = 1,
+                              int hours = 0,
+                              int minutes = 0,
+                              int seconds = 0,
+                              int milliseconds = 0]) {
     return new DateImplementation.withTimeZone(
         years, month, day,
         hours, minutes, seconds, milliseconds,
         new TimeZoneImplementation.local());
   }
 
   DateImplementation.withTimeZone(int years,
                                   int month,
                                   int day,
                                   int hours,
@@ skipping 68 matching lines @@
   }
 
   const DateImplementation.fromEpoch(int this.value,
                                      TimeZone this.timeZone);
 
   bool operator ==(Object other) {
     if (!(other is DateImplementation)) return false;
     return value == other.value && timeZone == other.timeZone;
   }
 
-  int compareTo(Date other) => value.compareTo(other.value);
-  int hashCode() => value;

[ngeoffray, 2012/05/15 12:17:35]

bad mergE?

[floitsch, 2012/05/15 12:34:22]

Done.

+  int compareTo(Date other) {
+    return value.compareTo(other.value);
+  }
 
   Date changeTimeZone(TimeZone targetTimeZone) {
     if (targetTimeZone === null) {
       targetTimeZone = new TimeZoneImplementation.local();
     }
     return new Date.fromEpoch(value, targetTimeZone);
   }
 
   int get year() {
     int secondsSinceEpoch = secondsSinceEpoch_;
@@ skipping 75 matching lines @@
     String fourDigits(int n) {
       int absN = n.abs();
       String sign = n < 0 ? "-" : "";
       if (absN >= 1000) return "$n";
       if (absN >= 100) return "${sign}0$absN";
       if (absN >= 10) return "${sign}00$absN";
       if (absN >= 1) return "${sign}000$absN";
     }
     String threeDigits(int n) {
       if (n >= 100) return "${n}";
-      if (n >= 10) return "0${n}";

[ngeoffray, 2012/05/15 12:17:35]

ditto?

[floitsch, 2012/05/15 12:34:22]

Done.

+      if (n > 10) return "0${n}";
       return "00${n}";
     }
     String twoDigits(int n) {
       if (n >= 10) return "${n}";
       return "0${n}";
     }
 
     String y = fourDigits(year);
     String m = twoDigits(month);
     String d = twoDigits(day);
@@ skipping 183 matching lines @@
 
   static int getHours_(int secondsSinceEpoch, bool isUtc)
       native "DateNatives_getHours";
 
   static int getMinutes_(int secondsSinceEpoch, bool isUtc)
       native "DateNatives_getMinutes";
 
   static int getSeconds_(int secondsSinceEpoch, bool isUtc)
       native "DateNatives_getSeconds";
 }