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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 // Dart core library. | |
| 6 | |
| 7 /** | |
| 8 * A [Duration] represents a time span. A duration can be negative. | |
| 9 */ | |
| 10 interface Duration extends Comparable default DurationImplementation { | |
| 11 /** | |
| 12 * The duration is the sum of all individual parts. This means that individual | |
| 13 * parts don't need to be less than the next-bigger unit. For example [hours] | |
| 14 * is allowed to have a value greater than 23. | |
| 15 * | |
| 16 * All individual parts are allowed to be negative. | |
| 17 * All arguments are by default 0. | |
| 18 */ | |
| 19 const Duration([int days, int hours, int minutes, int seconds, | |
| 20 int milliseconds]); | |
| 21 | |
| 22 /** | |
| 23 * Returns this [Duration] in days. Incomplete days are discarded. | |
| 24 */ | |
| 25 final int inDays; | |
| 26 | |
| 27 /** | |
| 28 * Returns this [Duration] in hours. Incomplete hours are discarded. | |
| 29 * The returned value can be greater than 23. | |
| 30 */ | |
| 31 final int inHours; | |
| 32 | |
| 33 /** | |
| 34 * Returns this [Duration] in minutes. Incomplete minutes are discarded. | |
| 35 * The returned value can be greater than 59. | |
| 36 */ | |
| 37 final int inMinutes; | |
| 38 | |
| 39 /** | |
| 40 * Returns this [Duration] in seconds. Incomplete seconds are discarded. | |
| 41 * The returned value can be greater than 59. | |
| 42 */ | |
| 43 final int inSeconds; | |
| 44 | |
| 45 /** | |
| 46 * Returns this [Duration] in milliseconds. | |
| 47 */ | |
| 48 final int inMilliseconds; | |
| 49 | |
| 50 static final int MILLISECONDS_PER_SECOND = 1000; | |
| 51 static final int SECONDS_PER_MINUTE = 60; | |
| 52 static final int MINUTES_PER_HOUR = 60; | |
| 53 static final int HOURS_PER_DAY = 24; | |
| 54 | |
| 55 static final int MILLISECONDS_PER_MINUTE = | |
| 56 MILLISECONDS_PER_SECOND * SECONDS_PER_MINUTE; | |
| 57 static final int MILLISECONDS_PER_HOUR = | |
| 58 MILLISECONDS_PER_MINUTE * MINUTES_PER_HOUR; | |
| 59 static final int MILLISECONDS_PER_DAY = | |
| 60 MILLISECONDS_PER_HOUR * HOURS_PER_DAY; | |
| 61 | |
| 62 static final int SECONDS_PER_HOUR = SECONDS_PER_MINUTE * MINUTES_PER_HOUR; | |
| 63 static final int SECONDS_PER_DAY = SECONDS_PER_HOUR * HOURS_PER_DAY; | |
| 64 | |
| 65 static final int MINUTES_PER_DAY = MINUTES_PER_HOUR * HOURS_PER_DAY; | |
| 66 } | |
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Chromium Code Reviews
Issue 10890030:
Move core and coreimpl from corelib/ to lib/core and lib/coreimpl. (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart