ae.utils.time source code

1 /**
2  * Time string formatting and such.
3  *
4  * License:
5  *   This Source Code Form is subject to the terms of
6  *   the Mozilla Public License, v. 2.0. If a copy of
7  *   the MPL was not distributed with this file, You
8  *   can obtain one at http://mozilla.org/MPL/2.0/.
9  *
10  * Authors:
11  *   Vladimir Panteleev <vladimir@thecybershadow.net>
12  */
13 
14 module ae.utils.time;
15 
16 public import ae.utils.time.common;
17 public import ae.utils.time.format;
18 public import ae.utils.time.fpdur;
19 public import ae.utils.time.parse;
20 public import ae.utils.time.parsedur;
21 
22 // ***************************************************************************
23 
24 import std.datetime;
25 
26 alias StdTime = typeof(SysTime.init.stdTime); // long
27 
28 /// Like SysTime.stdTime.
29 @property StdTime stdTime(Duration d)
30 {
31 	return d.total!"hnsecs"();
32 }
33 
34 @property bool empty(Duration d)
35 {
36 	return !d.stdTime;
37 }
38 
39 /// Workaround SysTime.fracSecs only being available in 2.067,
40 /// and SysTime.fracSec becoming deprecated in the same version.
41 static if (!is(typeof(SysTime.init.fracSecs)))
42 @property Duration fracSecs(SysTime s)
43 {
44 	enum hnsecsPerSecond = convert!("seconds", "hnsecs")(1);
45 	return hnsecs(s.stdTime % hnsecsPerSecond);
46 }
47 
48 /// As above, for Duration.split and Duration.get
49 static if (!is(typeof(Duration.init.split!())))
50 @property auto split(units...)(Duration d)
51 {
52 	static struct Result
53 	{
54 		mixin("long " ~ [units].join(", ") ~ ";");
55 	}
56 
57 	Result result;
58 	foreach (unit; units)
59 	{
60 		static if (is(typeof(d.get!unit))) // unit == "msecs" || unit == "usecs" || unit == "hnsecs" || unit == "nsecs")
61 			long value = d.get!unit();
62 		else
63 			long value = mixin("d.fracSec." ~ unit);
64 		mixin("result." ~ unit ~ " = value;");
65 	}
66 	return result;
67 }
68 
69 // ***************************************************************************
70 
71 // fpdur conflict test
72 static assert(1.5.seconds == 1500.msecs);