Merge pull request #236 from jethrogb/feature_clock
Optionally remove time crate dependency
This commit is contained in:
Brandon W Maister
GitHub
commit
73ba5d7985
17
.travis.sh
17
.travis.sh
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@ -33,8 +33,20 @@ build_and_test() {
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TZ=ACST-9:30 channel test -v --lib
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channel build -v --features rustc-serialize
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TZ=EST4 channel test -v --features rustc-serialize --lib
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channel build -v --features 'serde bincode'
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TZ=UTC0 channel test -v --features 'serde bincode'
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channel build -v --features serde
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TZ=UTC0 channel test -v --features serde --lib
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channel build -v --features serde,rustc-serialize
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TZ=Asia/Katmandu channel test -v --features serde,rustc-serialize
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# without default "clock" feature
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channel build -v --no-default-features
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TZ=ACST-9:30 channel test -v --no-default-features --lib
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channel build -v --no-default-features --features rustc-serialize
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TZ=EST4 channel test -v --no-default-features --features rustc-serialize --lib
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channel build -v --no-default-features --features serde
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TZ=UTC0 channel test -v --no-default-features --features serde --lib
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channel build -v --no-default-features --features serde,rustc-serialize
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TZ=Asia/Katmandu channel test -v --no-default-features --features serde,rustc-serialize --lib
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}
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build_only() {
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@ -44,6 +56,7 @@ build_only() {
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channel build -v
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channel build -v --features rustc-serialize
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channel build -v --features 'serde bincode'
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channel build -v --no-default-features
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}
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run_clippy() {
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@ -19,8 +19,12 @@ appveyor = { repository = "chronotope/chrono" }
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[lib]
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name = "chrono"
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[features]
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default = ["clock"]
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clock = ["time"]
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[dependencies]
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time = "^0.1.36"
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time = { version = "^0.1.36", optional = true }
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num-integer = { version = "0.1.36", default-features = false }
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num-traits = { version = "0.2", default-features = false }
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rustc-serialize = { version = "0.3", optional = true }
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@ -10,7 +10,9 @@ use std::time::{SystemTime, UNIX_EPOCH};
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use oldtime::Duration as OldDuration;
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use {Weekday, Timelike, Datelike};
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use offset::{TimeZone, Offset, Utc, Local, FixedOffset};
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#[cfg(feature="clock")]
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use offset::Local;
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use offset::{TimeZone, Offset, Utc, FixedOffset};
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use naive::{NaiveTime, NaiveDateTime, IsoWeek};
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use Date;
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use format::{Item, Numeric, Pad, Fixed};
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@ -532,6 +534,7 @@ impl str::FromStr for DateTime<Utc> {
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}
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}
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#[cfg(feature="clock")]
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impl str::FromStr for DateTime<Local> {
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type Err = ParseError;
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@ -558,6 +561,7 @@ impl From<SystemTime> for DateTime<Utc> {
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}
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}
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#[cfg(feature="clock")]
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impl From<SystemTime> for DateTime<Local> {
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fn from(t: SystemTime) -> DateTime<Local> {
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DateTime::<Utc>::from(t).with_timezone(&Local)
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@ -594,7 +598,7 @@ fn test_encodable_json<FUtc, FFixed, E>(to_string_utc: FUtc, to_string_fixed: FF
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Some(r#""2014-07-24T12:34:06+01:00:50""#.into()));
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}
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#[cfg(all(test, any(feature = "rustc-serialize", feature = "serde")))]
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#[cfg(all(test, feature="clock", any(feature = "rustc-serialize", feature = "serde")))]
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fn test_decodable_json<FUtc, FFixed, FLocal, E>(utc_from_str: FUtc,
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fixed_from_str: FFixed,
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local_from_str: FLocal)
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@ -631,7 +635,7 @@ fn test_decodable_json<FUtc, FFixed, FLocal, E>(utc_from_str: FUtc,
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assert!(fixed_from_str(r#""2014-07-32T12:34:06Z""#).is_err());
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}
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#[cfg(all(test, feature = "rustc-serialize"))]
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#[cfg(all(test, feature="clock", feature = "rustc-serialize"))]
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fn test_decodable_json_timestamps<FUtc, FFixed, FLocal, E>(utc_from_str: FUtc,
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fixed_from_str: FFixed,
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local_from_str: FLocal)
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@ -665,7 +669,9 @@ pub mod rustc_serialize {
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use std::fmt;
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use std::ops::Deref;
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use super::DateTime;
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use offset::{TimeZone, LocalResult, Utc, Local, FixedOffset};
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#[cfg(feature="clock")]
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use offset::Local;
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use offset::{TimeZone, LocalResult, Utc, FixedOffset};
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use rustc_serialize::{Encodable, Encoder, Decodable, Decoder};
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impl<Tz: TimeZone> Encodable for DateTime<Tz> {
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@ -745,6 +751,7 @@ pub mod rustc_serialize {
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}
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}
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#[cfg(feature="clock")]
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impl Decodable for DateTime<Local> {
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fn decode<D: Decoder>(d: &mut D) -> Result<DateTime<Local>, D::Error> {
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match d.read_str()?.parse::<DateTime<FixedOffset>>() {
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@ -754,6 +761,7 @@ pub mod rustc_serialize {
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}
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}
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#[cfg(feature="clock")]
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#[allow(deprecated)]
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impl Decodable for TsSeconds<Local> {
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#[allow(deprecated)]
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@ -770,11 +778,13 @@ pub mod rustc_serialize {
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super::test_encodable_json(json::encode, json::encode);
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}
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#[cfg(feature="clock")]
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#[test]
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fn test_decodable() {
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super::test_decodable_json(json::decode, json::decode, json::decode);
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}
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#[cfg(feature="clock")]
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#[test]
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fn test_decodable_timestamps() {
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super::test_decodable_json_timestamps(json::decode, json::decode, json::decode);
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@ -787,7 +797,9 @@ pub mod rustc_serialize {
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pub mod serde {
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use std::fmt;
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use super::DateTime;
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use offset::{TimeZone, Utc, Local, FixedOffset};
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#[cfg(feature="clock")]
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use offset::Local;
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use offset::{TimeZone, Utc, FixedOffset};
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use serdelib::{ser, de};
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/// Ser/de to/from timestamps in seconds
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@ -1023,6 +1035,7 @@ pub mod serde {
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///
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/// See [the `serde` module](./serde/index.html) for alternate
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/// serialization formats.
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#[cfg(feature="clock")]
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impl<'de> de::Deserialize<'de> for DateTime<Local> {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
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where D: de::Deserializer<'de>
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@ -1039,6 +1052,7 @@ pub mod serde {
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super::test_encodable_json(self::serde_json::to_string, self::serde_json::to_string);
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}
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#[cfg(feature="clock")]
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#[test]
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fn test_serde_deserialize() {
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super::test_decodable_json(|input| self::serde_json::from_str(&input), |input| self::serde_json::from_str(&input),
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@ -1062,9 +1076,12 @@ pub mod serde {
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#[cfg(test)]
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mod tests {
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use super::DateTime;
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#[cfg(feature="clock")]
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use Datelike;
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use naive::{NaiveTime, NaiveDate};
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use offset::{TimeZone, Utc, Local, FixedOffset};
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#[cfg(feature="clock")]
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use offset::Local;
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use offset::{TimeZone, Utc, FixedOffset};
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use oldtime::Duration;
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use std::time::{SystemTime, UNIX_EPOCH};
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@ -1138,6 +1155,7 @@ mod tests {
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}
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#[test]
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#[cfg(feature="clock")]
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fn test_datetime_with_timezone() {
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let local_now = Local::now();
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let utc_now = local_now.with_timezone(&Utc);
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@ -1233,6 +1251,7 @@ mod tests {
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}
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#[test]
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#[cfg(feature="clock")]
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fn test_datetime_format_with_local() {
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// if we are not around the year boundary, local and UTC date should have the same year
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let dt = Local::now().with_month(5).unwrap();
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@ -1240,6 +1259,7 @@ mod tests {
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}
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#[test]
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#[cfg(feature="clock")]
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fn test_datetime_is_copy() {
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// UTC is known to be `Copy`.
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let a = Utc::now();
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@ -1248,6 +1268,7 @@ mod tests {
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}
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#[test]
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#[cfg(feature="clock")]
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fn test_datetime_is_send() {
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use std::thread;
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@ -1288,7 +1309,9 @@ mod tests {
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UNIX_EPOCH - Duration::new(999_999_999, 999_999_999));
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// DateTime<any tz> -> SystemTime (via `with_timezone`)
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#[cfg(feature="clock")] {
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assert_eq!(SystemTime::from(epoch.with_timezone(&Local)), UNIX_EPOCH);
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}
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assert_eq!(SystemTime::from(epoch.with_timezone(&FixedOffset::east(32400))), UNIX_EPOCH);
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assert_eq!(SystemTime::from(epoch.with_timezone(&FixedOffset::west(28800))), UNIX_EPOCH);
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}
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11
src/lib.rs
11
src/lib.rs
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@ -396,6 +396,7 @@
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// field-init-shorthand, which was stabilized in rust 1.17.
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#![cfg_attr(feature = "cargo-clippy", allow(const_static_lifetime, redundant_field_names))]
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#[cfg(feature="clock")]
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extern crate time as oldtime;
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extern crate num_integer;
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extern crate num_traits;
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@ -407,7 +408,9 @@ extern crate serde as serdelib;
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// this reexport is to aid the transition and should not be in the prelude!
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pub use oldtime::Duration;
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#[doc(no_inline)] pub use offset::{TimeZone, Offset, LocalResult, Utc, FixedOffset, Local};
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#[cfg(feature="clock")]
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#[doc(no_inline)] pub use offset::Local;
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#[doc(no_inline)] pub use offset::{TimeZone, Offset, LocalResult, Utc, FixedOffset};
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#[doc(no_inline)] pub use naive::{NaiveDate, IsoWeek, NaiveTime, NaiveDateTime};
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pub use date::{Date, MIN_DATE, MAX_DATE};
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pub use datetime::{DateTime, SecondsFormat};
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@ -420,7 +423,9 @@ pub use round::SubsecRound;
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pub mod prelude {
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#[doc(no_inline)] pub use {Datelike, Timelike, Weekday};
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#[doc(no_inline)] pub use {TimeZone, Offset};
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#[doc(no_inline)] pub use {Utc, FixedOffset, Local};
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#[cfg(feature="clock")]
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#[doc(no_inline)] pub use Local;
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#[doc(no_inline)] pub use {Utc, FixedOffset};
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#[doc(no_inline)] pub use {NaiveDate, NaiveTime, NaiveDateTime};
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#[doc(no_inline)] pub use Date;
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#[doc(no_inline)] pub use {DateTime, SecondsFormat};
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@ -433,6 +438,8 @@ macro_rules! try_opt {
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}
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mod div;
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#[cfg(not(feature="clock"))]
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mod oldtime;
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pub mod offset;
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pub mod naive {
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//! Date and time types which do not concern about the timezones.
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@ -371,9 +371,10 @@ pub trait TimeZone: Sized + Clone {
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mod utc;
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mod fixed;
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#[cfg(feature="clock")]
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mod local;
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pub use self::utc::Utc;
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pub use self::fixed::FixedOffset;
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#[cfg(feature="clock")]
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pub use self::local::Local;
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@ -4,9 +4,11 @@
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//! The UTC (Coordinated Universal Time) time zone.
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use std::fmt;
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#[cfg(feature="clock")]
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use oldtime;
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use naive::{NaiveDate, NaiveDateTime};
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#[cfg(feature="clock")]
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use {Date, DateTime};
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use super::{TimeZone, Offset, LocalResult, FixedOffset};
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@ -30,6 +32,7 @@ use super::{TimeZone, Offset, LocalResult, FixedOffset};
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#[derive(Copy, Clone, PartialEq, Eq)]
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pub struct Utc;
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#[cfg(feature="clock")]
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impl Utc {
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/// Returns a `Date` which corresponds to the current date.
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pub fn today() -> Date<Utc> { Utc::now().date() }
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@ -0,0 +1,640 @@
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// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! Temporal quantification
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use std::{fmt, i64};
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use std::error::Error;
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use std::ops::{Add, Sub, Mul, Div, Neg};
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use std::time::Duration as StdDuration;
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/// The number of nanoseconds in a microsecond.
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const NANOS_PER_MICRO: i32 = 1000;
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/// The number of nanoseconds in a millisecond.
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const NANOS_PER_MILLI: i32 = 1000_000;
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/// The number of nanoseconds in seconds.
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const NANOS_PER_SEC: i32 = 1_000_000_000;
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/// The number of microseconds per second.
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const MICROS_PER_SEC: i64 = 1000_000;
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/// The number of milliseconds per second.
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const MILLIS_PER_SEC: i64 = 1000;
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/// The number of seconds in a minute.
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const SECS_PER_MINUTE: i64 = 60;
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/// The number of seconds in an hour.
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const SECS_PER_HOUR: i64 = 3600;
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/// The number of (non-leap) seconds in days.
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const SECS_PER_DAY: i64 = 86400;
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/// The number of (non-leap) seconds in a week.
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const SECS_PER_WEEK: i64 = 604800;
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macro_rules! try_opt {
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($e:expr) => (match $e { Some(v) => v, None => return None })
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}
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/// ISO 8601 time duration with nanosecond precision.
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/// This also allows for the negative duration; see individual methods for details.
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#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug)]
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pub struct Duration {
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secs: i64,
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nanos: i32, // Always 0 <= nanos < NANOS_PER_SEC
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}
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/// The minimum possible `Duration`: `i64::MIN` milliseconds.
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pub const MIN: Duration = Duration {
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secs: i64::MIN / MILLIS_PER_SEC - 1,
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nanos: NANOS_PER_SEC + (i64::MIN % MILLIS_PER_SEC) as i32 * NANOS_PER_MILLI
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};
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/// The maximum possible `Duration`: `i64::MAX` milliseconds.
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pub const MAX: Duration = Duration {
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secs: i64::MAX / MILLIS_PER_SEC,
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nanos: (i64::MAX % MILLIS_PER_SEC) as i32 * NANOS_PER_MILLI
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};
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impl Duration {
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/// Makes a new `Duration` with given number of weeks.
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/// Equivalent to `Duration::seconds(weeks * 7 * 24 * 60 * 60)` with overflow checks.
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/// Panics when the duration is out of bounds.
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#[inline]
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pub fn weeks(weeks: i64) -> Duration {
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let secs = weeks.checked_mul(SECS_PER_WEEK).expect("Duration::weeks out of bounds");
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Duration::seconds(secs)
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}
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/// Makes a new `Duration` with given number of days.
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/// Equivalent to `Duration::seconds(days * 24 * 60 * 60)` with overflow checks.
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/// Panics when the duration is out of bounds.
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#[inline]
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pub fn days(days: i64) -> Duration {
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let secs = days.checked_mul(SECS_PER_DAY).expect("Duration::days out of bounds");
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Duration::seconds(secs)
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}
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/// Makes a new `Duration` with given number of hours.
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/// Equivalent to `Duration::seconds(hours * 60 * 60)` with overflow checks.
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/// Panics when the duration is out of bounds.
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#[inline]
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pub fn hours(hours: i64) -> Duration {
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let secs = hours.checked_mul(SECS_PER_HOUR).expect("Duration::hours ouf of bounds");
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Duration::seconds(secs)
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}
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/// Makes a new `Duration` with given number of minutes.
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/// Equivalent to `Duration::seconds(minutes * 60)` with overflow checks.
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/// Panics when the duration is out of bounds.
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#[inline]
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pub fn minutes(minutes: i64) -> Duration {
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let secs = minutes.checked_mul(SECS_PER_MINUTE).expect("Duration::minutes out of bounds");
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Duration::seconds(secs)
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}
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/// Makes a new `Duration` with given number of seconds.
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/// Panics when the duration is more than `i64::MAX` milliseconds
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/// or less than `i64::MIN` milliseconds.
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#[inline]
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pub fn seconds(seconds: i64) -> Duration {
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let d = Duration { secs: seconds, nanos: 0 };
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if d < MIN || d > MAX {
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panic!("Duration::seconds out of bounds");
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}
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d
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}
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/// Makes a new `Duration` with given number of milliseconds.
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#[inline]
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pub fn milliseconds(milliseconds: i64) -> Duration {
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let (secs, millis) = div_mod_floor_64(milliseconds, MILLIS_PER_SEC);
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let nanos = millis as i32 * NANOS_PER_MILLI;
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Duration { secs: secs, nanos: nanos }
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}
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/// Makes a new `Duration` with given number of microseconds.
|
||||
#[inline]
|
||||
pub fn microseconds(microseconds: i64) -> Duration {
|
||||
let (secs, micros) = div_mod_floor_64(microseconds, MICROS_PER_SEC);
|
||||
let nanos = micros as i32 * NANOS_PER_MICRO;
|
||||
Duration { secs: secs, nanos: nanos }
|
||||
}
|
||||
|
||||
/// Makes a new `Duration` with given number of nanoseconds.
|
||||
#[inline]
|
||||
pub fn nanoseconds(nanos: i64) -> Duration {
|
||||
let (secs, nanos) = div_mod_floor_64(nanos, NANOS_PER_SEC as i64);
|
||||
Duration { secs: secs, nanos: nanos as i32 }
|
||||
}
|
||||
|
||||
/// Returns the total number of whole weeks in the duration.
|
||||
#[inline]
|
||||
pub fn num_weeks(&self) -> i64 {
|
||||
self.num_days() / 7
|
||||
}
|
||||
|
||||
/// Returns the total number of whole days in the duration.
|
||||
pub fn num_days(&self) -> i64 {
|
||||
self.num_seconds() / SECS_PER_DAY
|
||||
}
|
||||
|
||||
/// Returns the total number of whole hours in the duration.
|
||||
#[inline]
|
||||
pub fn num_hours(&self) -> i64 {
|
||||
self.num_seconds() / SECS_PER_HOUR
|
||||
}
|
||||
|
||||
/// Returns the total number of whole minutes in the duration.
|
||||
#[inline]
|
||||
pub fn num_minutes(&self) -> i64 {
|
||||
self.num_seconds() / SECS_PER_MINUTE
|
||||
}
|
||||
|
||||
/// Returns the total number of whole seconds in the duration.
|
||||
pub fn num_seconds(&self) -> i64 {
|
||||
// If secs is negative, nanos should be subtracted from the duration.
|
||||
if self.secs < 0 && self.nanos > 0 {
|
||||
self.secs + 1
|
||||
} else {
|
||||
self.secs
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns the number of nanoseconds such that
|
||||
/// `nanos_mod_sec() + num_seconds() * NANOS_PER_SEC` is the total number of
|
||||
/// nanoseconds in the duration.
|
||||
fn nanos_mod_sec(&self) -> i32 {
|
||||
if self.secs < 0 && self.nanos > 0 {
|
||||
self.nanos - NANOS_PER_SEC
|
||||
} else {
|
||||
self.nanos
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns the total number of whole milliseconds in the duration,
|
||||
pub fn num_milliseconds(&self) -> i64 {
|
||||
// A proper Duration will not overflow, because MIN and MAX are defined
|
||||
// such that the range is exactly i64 milliseconds.
|
||||
let secs_part = self.num_seconds() * MILLIS_PER_SEC;
|
||||
let nanos_part = self.nanos_mod_sec() / NANOS_PER_MILLI;
|
||||
secs_part + nanos_part as i64
|
||||
}
|
||||
|
||||
/// Returns the total number of whole microseconds in the duration,
|
||||
/// or `None` on overflow (exceeding 2^63 microseconds in either direction).
|
||||
pub fn num_microseconds(&self) -> Option<i64> {
|
||||
let secs_part = try_opt!(self.num_seconds().checked_mul(MICROS_PER_SEC));
|
||||
let nanos_part = self.nanos_mod_sec() / NANOS_PER_MICRO;
|
||||
secs_part.checked_add(nanos_part as i64)
|
||||
}
|
||||
|
||||
/// Returns the total number of whole nanoseconds in the duration,
|
||||
/// or `None` on overflow (exceeding 2^63 nanoseconds in either direction).
|
||||
pub fn num_nanoseconds(&self) -> Option<i64> {
|
||||
let secs_part = try_opt!(self.num_seconds().checked_mul(NANOS_PER_SEC as i64));
|
||||
let nanos_part = self.nanos_mod_sec();
|
||||
secs_part.checked_add(nanos_part as i64)
|
||||
}
|
||||
|
||||
/// Add two durations, returning `None` if overflow occurred.
|
||||
pub fn checked_add(&self, rhs: &Duration) -> Option<Duration> {
|
||||
let mut secs = try_opt!(self.secs.checked_add(rhs.secs));
|
||||
let mut nanos = self.nanos + rhs.nanos;
|
||||
if nanos >= NANOS_PER_SEC {
|
||||
nanos -= NANOS_PER_SEC;
|
||||
secs = try_opt!(secs.checked_add(1));
|
||||
}
|
||||
let d = Duration { secs: secs, nanos: nanos };
|
||||
// Even if d is within the bounds of i64 seconds,
|
||||
// it might still overflow i64 milliseconds.
|
||||
if d < MIN || d > MAX { None } else { Some(d) }
|
||||
}
|
||||
|
||||
/// Subtract two durations, returning `None` if overflow occurred.
|
||||
pub fn checked_sub(&self, rhs: &Duration) -> Option<Duration> {
|
||||
let mut secs = try_opt!(self.secs.checked_sub(rhs.secs));
|
||||
let mut nanos = self.nanos - rhs.nanos;
|
||||
if nanos < 0 {
|
||||
nanos += NANOS_PER_SEC;
|
||||
secs = try_opt!(secs.checked_sub(1));
|
||||
}
|
||||
let d = Duration { secs: secs, nanos: nanos };
|
||||
// Even if d is within the bounds of i64 seconds,
|
||||
// it might still overflow i64 milliseconds.
|
||||
if d < MIN || d > MAX { None } else { Some(d) }
|
||||
}
|
||||
|
||||
/// The minimum possible `Duration`: `i64::MIN` milliseconds.
|
||||
#[inline]
|
||||
pub fn min_value() -> Duration { MIN }
|
||||
|
||||
/// The maximum possible `Duration`: `i64::MAX` milliseconds.
|
||||
#[inline]
|
||||
pub fn max_value() -> Duration { MAX }
|
||||
|
||||
/// A duration where the stored seconds and nanoseconds are equal to zero.
|
||||
#[inline]
|
||||
pub fn zero() -> Duration {
|
||||
Duration { secs: 0, nanos: 0 }
|
||||
}
|
||||
|
||||
/// Returns `true` if the duration equals `Duration::zero()`.
|
||||
#[inline]
|
||||
pub fn is_zero(&self) -> bool {
|
||||
self.secs == 0 && self.nanos == 0
|
||||
}
|
||||
|
||||
/// Creates a `time::Duration` object from `std::time::Duration`
|
||||
///
|
||||
/// This function errors when original duration is larger than the maximum
|
||||
/// value supported for this type.
|
||||
pub fn from_std(duration: StdDuration) -> Result<Duration, OutOfRangeError> {
|
||||
// We need to check secs as u64 before coercing to i64
|
||||
if duration.as_secs() > MAX.secs as u64 {
|
||||
return Err(OutOfRangeError(()));
|
||||
}
|
||||
let d = Duration {
|
||||
secs: duration.as_secs() as i64,
|
||||
nanos: duration.subsec_nanos() as i32,
|
||||
};
|
||||
if d > MAX {
|
||||
return Err(OutOfRangeError(()));
|
||||
}
|
||||
Ok(d)
|
||||
}
|
||||
|
||||
/// Creates a `std::time::Duration` object from `time::Duration`
|
||||
///
|
||||
/// This function errors when duration is less than zero. As standard
|
||||
/// library implementation is limited to non-negative values.
|
||||
pub fn to_std(&self) -> Result<StdDuration, OutOfRangeError> {
|
||||
if self.secs < 0 {
|
||||
return Err(OutOfRangeError(()));
|
||||
}
|
||||
Ok(StdDuration::new(self.secs as u64, self.nanos as u32))
|
||||
}
|
||||
}
|
||||
|
||||
impl Neg for Duration {
|
||||
type Output = Duration;
|
||||
|
||||
#[inline]
|
||||
fn neg(self) -> Duration {
|
||||
if self.nanos == 0 {
|
||||
Duration { secs: -self.secs, nanos: 0 }
|
||||
} else {
|
||||
Duration { secs: -self.secs - 1, nanos: NANOS_PER_SEC - self.nanos }
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Add for Duration {
|
||||
type Output = Duration;
|
||||
|
||||
fn add(self, rhs: Duration) -> Duration {
|
||||
let mut secs = self.secs + rhs.secs;
|
||||
let mut nanos = self.nanos + rhs.nanos;
|
||||
if nanos >= NANOS_PER_SEC {
|
||||
nanos -= NANOS_PER_SEC;
|
||||
secs += 1;
|
||||
}
|
||||
Duration { secs: secs, nanos: nanos }
|
||||
}
|
||||
}
|
||||
|
||||
impl Sub for Duration {
|
||||
type Output = Duration;
|
||||
|
||||
fn sub(self, rhs: Duration) -> Duration {
|
||||
let mut secs = self.secs - rhs.secs;
|
||||
let mut nanos = self.nanos - rhs.nanos;
|
||||
if nanos < 0 {
|
||||
nanos += NANOS_PER_SEC;
|
||||
secs -= 1;
|
||||
}
|
||||
Duration { secs: secs, nanos: nanos }
|
||||
}
|
||||
}
|
||||
|
||||
impl Mul<i32> for Duration {
|
||||
type Output = Duration;
|
||||
|
||||
fn mul(self, rhs: i32) -> Duration {
|
||||
// Multiply nanoseconds as i64, because it cannot overflow that way.
|
||||
let total_nanos = self.nanos as i64 * rhs as i64;
|
||||
let (extra_secs, nanos) = div_mod_floor_64(total_nanos, NANOS_PER_SEC as i64);
|
||||
let secs = self.secs * rhs as i64 + extra_secs;
|
||||
Duration { secs: secs, nanos: nanos as i32 }
|
||||
}
|
||||
}
|
||||
|
||||
impl Div<i32> for Duration {
|
||||
type Output = Duration;
|
||||
|
||||
fn div(self, rhs: i32) -> Duration {
|
||||
let mut secs = self.secs / rhs as i64;
|
||||
let carry = self.secs - secs * rhs as i64;
|
||||
let extra_nanos = carry * NANOS_PER_SEC as i64 / rhs as i64;
|
||||
let mut nanos = self.nanos / rhs + extra_nanos as i32;
|
||||
if nanos >= NANOS_PER_SEC {
|
||||
nanos -= NANOS_PER_SEC;
|
||||
secs += 1;
|
||||
}
|
||||
if nanos < 0 {
|
||||
nanos += NANOS_PER_SEC;
|
||||
secs -= 1;
|
||||
}
|
||||
Duration { secs: secs, nanos: nanos }
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for Duration {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
// technically speaking, negative duration is not valid ISO 8601,
|
||||
// but we need to print it anyway.
|
||||
let (abs, sign) = if self.secs < 0 { (-*self, "-") } else { (*self, "") };
|
||||
|
||||
let days = abs.secs / SECS_PER_DAY;
|
||||
let secs = abs.secs - days * SECS_PER_DAY;
|
||||
let hasdate = days != 0;
|
||||
let hastime = (secs != 0 || abs.nanos != 0) || !hasdate;
|
||||
|
||||
try!(write!(f, "{}P", sign));
|
||||
|
||||
if hasdate {
|
||||
try!(write!(f, "{}D", days));
|
||||
}
|
||||
if hastime {
|
||||
if abs.nanos == 0 {
|
||||
try!(write!(f, "T{}S", secs));
|
||||
} else if abs.nanos % NANOS_PER_MILLI == 0 {
|
||||
try!(write!(f, "T{}.{:03}S", secs, abs.nanos / NANOS_PER_MILLI));
|
||||
} else if abs.nanos % NANOS_PER_MICRO == 0 {
|
||||
try!(write!(f, "T{}.{:06}S", secs, abs.nanos / NANOS_PER_MICRO));
|
||||
} else {
|
||||
try!(write!(f, "T{}.{:09}S", secs, abs.nanos));
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
/// Represents error when converting `Duration` to/from a standard library
|
||||
/// implementation
|
||||
///
|
||||
/// The `std::time::Duration` supports a range from zero to `u64::MAX`
|
||||
/// *seconds*, while this module supports signed range of up to
|
||||
/// `i64::MAX` of *milliseconds*.
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||
pub struct OutOfRangeError(());
|
||||
|
||||
impl fmt::Display for OutOfRangeError {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "{}", self.description())
|
||||
}
|
||||
}
|
||||
|
||||
impl Error for OutOfRangeError {
|
||||
fn description(&self) -> &str {
|
||||
"Source duration value is out of range for the target type"
|
||||
}
|
||||
}
|
||||
|
||||
// Copied from libnum
|
||||
#[inline]
|
||||
fn div_mod_floor_64(this: i64, other: i64) -> (i64, i64) {
|
||||
(div_floor_64(this, other), mod_floor_64(this, other))
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn div_floor_64(this: i64, other: i64) -> i64 {
|
||||
match div_rem_64(this, other) {
|
||||
(d, r) if (r > 0 && other < 0)
|
||||
|| (r < 0 && other > 0) => d - 1,
|
||||
(d, _) => d,
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn mod_floor_64(this: i64, other: i64) -> i64 {
|
||||
match this % other {
|
||||
r if (r > 0 && other < 0)
|
||||
|| (r < 0 && other > 0) => r + other,
|
||||
r => r,
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn div_rem_64(this: i64, other: i64) -> (i64, i64) {
|
||||
(this / other, this % other)
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::{Duration, MIN, MAX, OutOfRangeError};
|
||||
use std::{i32, i64};
|
||||
use std::time::Duration as StdDuration;
|
||||
|
||||
#[test]
|
||||
fn test_duration() {
|
||||
assert!(Duration::seconds(1) != Duration::zero());
|
||||
assert_eq!(Duration::seconds(1) + Duration::seconds(2), Duration::seconds(3));
|
||||
assert_eq!(Duration::seconds(86399) + Duration::seconds(4),
|
||||
Duration::days(1) + Duration::seconds(3));
|
||||
assert_eq!(Duration::days(10) - Duration::seconds(1000), Duration::seconds(863000));
|
||||
assert_eq!(Duration::days(10) - Duration::seconds(1000000), Duration::seconds(-136000));
|
||||
assert_eq!(Duration::days(2) + Duration::seconds(86399) +
|
||||
Duration::nanoseconds(1234567890),
|
||||
Duration::days(3) + Duration::nanoseconds(234567890));
|
||||
assert_eq!(-Duration::days(3), Duration::days(-3));
|
||||
assert_eq!(-(Duration::days(3) + Duration::seconds(70)),
|
||||
Duration::days(-4) + Duration::seconds(86400-70));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_num_days() {
|
||||
assert_eq!(Duration::zero().num_days(), 0);
|
||||
assert_eq!(Duration::days(1).num_days(), 1);
|
||||
assert_eq!(Duration::days(-1).num_days(), -1);
|
||||
assert_eq!(Duration::seconds(86399).num_days(), 0);
|
||||
assert_eq!(Duration::seconds(86401).num_days(), 1);
|
||||
assert_eq!(Duration::seconds(-86399).num_days(), 0);
|
||||
assert_eq!(Duration::seconds(-86401).num_days(), -1);
|
||||
assert_eq!(Duration::days(i32::MAX as i64).num_days(), i32::MAX as i64);
|
||||
assert_eq!(Duration::days(i32::MIN as i64).num_days(), i32::MIN as i64);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_num_seconds() {
|
||||
assert_eq!(Duration::zero().num_seconds(), 0);
|
||||
assert_eq!(Duration::seconds(1).num_seconds(), 1);
|
||||
assert_eq!(Duration::seconds(-1).num_seconds(), -1);
|
||||
assert_eq!(Duration::milliseconds(999).num_seconds(), 0);
|
||||
assert_eq!(Duration::milliseconds(1001).num_seconds(), 1);
|
||||
assert_eq!(Duration::milliseconds(-999).num_seconds(), 0);
|
||||
assert_eq!(Duration::milliseconds(-1001).num_seconds(), -1);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_num_milliseconds() {
|
||||
assert_eq!(Duration::zero().num_milliseconds(), 0);
|
||||
assert_eq!(Duration::milliseconds(1).num_milliseconds(), 1);
|
||||
assert_eq!(Duration::milliseconds(-1).num_milliseconds(), -1);
|
||||
assert_eq!(Duration::microseconds(999).num_milliseconds(), 0);
|
||||
assert_eq!(Duration::microseconds(1001).num_milliseconds(), 1);
|
||||
assert_eq!(Duration::microseconds(-999).num_milliseconds(), 0);
|
||||
assert_eq!(Duration::microseconds(-1001).num_milliseconds(), -1);
|
||||
assert_eq!(Duration::milliseconds(i64::MAX).num_milliseconds(), i64::MAX);
|
||||
assert_eq!(Duration::milliseconds(i64::MIN).num_milliseconds(), i64::MIN);
|
||||
assert_eq!(MAX.num_milliseconds(), i64::MAX);
|
||||
assert_eq!(MIN.num_milliseconds(), i64::MIN);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_num_microseconds() {
|
||||
assert_eq!(Duration::zero().num_microseconds(), Some(0));
|
||||
assert_eq!(Duration::microseconds(1).num_microseconds(), Some(1));
|
||||
assert_eq!(Duration::microseconds(-1).num_microseconds(), Some(-1));
|
||||
assert_eq!(Duration::nanoseconds(999).num_microseconds(), Some(0));
|
||||
assert_eq!(Duration::nanoseconds(1001).num_microseconds(), Some(1));
|
||||
assert_eq!(Duration::nanoseconds(-999).num_microseconds(), Some(0));
|
||||
assert_eq!(Duration::nanoseconds(-1001).num_microseconds(), Some(-1));
|
||||
assert_eq!(Duration::microseconds(i64::MAX).num_microseconds(), Some(i64::MAX));
|
||||
assert_eq!(Duration::microseconds(i64::MIN).num_microseconds(), Some(i64::MIN));
|
||||
assert_eq!(MAX.num_microseconds(), None);
|
||||
assert_eq!(MIN.num_microseconds(), None);
|
||||
|
||||
// overflow checks
|
||||
const MICROS_PER_DAY: i64 = 86400_000_000;
|
||||
assert_eq!(Duration::days(i64::MAX / MICROS_PER_DAY).num_microseconds(),
|
||||
Some(i64::MAX / MICROS_PER_DAY * MICROS_PER_DAY));
|
||||
assert_eq!(Duration::days(i64::MIN / MICROS_PER_DAY).num_microseconds(),
|
||||
Some(i64::MIN / MICROS_PER_DAY * MICROS_PER_DAY));
|
||||
assert_eq!(Duration::days(i64::MAX / MICROS_PER_DAY + 1).num_microseconds(), None);
|
||||
assert_eq!(Duration::days(i64::MIN / MICROS_PER_DAY - 1).num_microseconds(), None);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_num_nanoseconds() {
|
||||
assert_eq!(Duration::zero().num_nanoseconds(), Some(0));
|
||||
assert_eq!(Duration::nanoseconds(1).num_nanoseconds(), Some(1));
|
||||
assert_eq!(Duration::nanoseconds(-1).num_nanoseconds(), Some(-1));
|
||||
assert_eq!(Duration::nanoseconds(i64::MAX).num_nanoseconds(), Some(i64::MAX));
|
||||
assert_eq!(Duration::nanoseconds(i64::MIN).num_nanoseconds(), Some(i64::MIN));
|
||||
assert_eq!(MAX.num_nanoseconds(), None);
|
||||
assert_eq!(MIN.num_nanoseconds(), None);
|
||||
|
||||
// overflow checks
|
||||
const NANOS_PER_DAY: i64 = 86400_000_000_000;
|
||||
assert_eq!(Duration::days(i64::MAX / NANOS_PER_DAY).num_nanoseconds(),
|
||||
Some(i64::MAX / NANOS_PER_DAY * NANOS_PER_DAY));
|
||||
assert_eq!(Duration::days(i64::MIN / NANOS_PER_DAY).num_nanoseconds(),
|
||||
Some(i64::MIN / NANOS_PER_DAY * NANOS_PER_DAY));
|
||||
assert_eq!(Duration::days(i64::MAX / NANOS_PER_DAY + 1).num_nanoseconds(), None);
|
||||
assert_eq!(Duration::days(i64::MIN / NANOS_PER_DAY - 1).num_nanoseconds(), None);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_checked_ops() {
|
||||
assert_eq!(Duration::milliseconds(i64::MAX - 1).checked_add(&Duration::microseconds(999)),
|
||||
Some(Duration::milliseconds(i64::MAX - 2) + Duration::microseconds(1999)));
|
||||
assert!(Duration::milliseconds(i64::MAX).checked_add(&Duration::microseconds(1000))
|
||||
.is_none());
|
||||
|
||||
assert_eq!(Duration::milliseconds(i64::MIN).checked_sub(&Duration::milliseconds(0)),
|
||||
Some(Duration::milliseconds(i64::MIN)));
|
||||
assert!(Duration::milliseconds(i64::MIN).checked_sub(&Duration::milliseconds(1))
|
||||
.is_none());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_mul() {
|
||||
assert_eq!(Duration::zero() * i32::MAX, Duration::zero());
|
||||
assert_eq!(Duration::zero() * i32::MIN, Duration::zero());
|
||||
assert_eq!(Duration::nanoseconds(1) * 0, Duration::zero());
|
||||
assert_eq!(Duration::nanoseconds(1) * 1, Duration::nanoseconds(1));
|
||||
assert_eq!(Duration::nanoseconds(1) * 1_000_000_000, Duration::seconds(1));
|
||||
assert_eq!(Duration::nanoseconds(1) * -1_000_000_000, -Duration::seconds(1));
|
||||
assert_eq!(-Duration::nanoseconds(1) * 1_000_000_000, -Duration::seconds(1));
|
||||
assert_eq!(Duration::nanoseconds(30) * 333_333_333,
|
||||
Duration::seconds(10) - Duration::nanoseconds(10));
|
||||
assert_eq!((Duration::nanoseconds(1) + Duration::seconds(1) + Duration::days(1)) * 3,
|
||||
Duration::nanoseconds(3) + Duration::seconds(3) + Duration::days(3));
|
||||
assert_eq!(Duration::milliseconds(1500) * -2, Duration::seconds(-3));
|
||||
assert_eq!(Duration::milliseconds(-1500) * 2, Duration::seconds(-3));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_div() {
|
||||
assert_eq!(Duration::zero() / i32::MAX, Duration::zero());
|
||||
assert_eq!(Duration::zero() / i32::MIN, Duration::zero());
|
||||
assert_eq!(Duration::nanoseconds(123_456_789) / 1, Duration::nanoseconds(123_456_789));
|
||||
assert_eq!(Duration::nanoseconds(123_456_789) / -1, -Duration::nanoseconds(123_456_789));
|
||||
assert_eq!(-Duration::nanoseconds(123_456_789) / -1, Duration::nanoseconds(123_456_789));
|
||||
assert_eq!(-Duration::nanoseconds(123_456_789) / 1, -Duration::nanoseconds(123_456_789));
|
||||
assert_eq!(Duration::seconds(1) / 3, Duration::nanoseconds(333_333_333));
|
||||
assert_eq!(Duration::seconds(4) / 3, Duration::nanoseconds(1_333_333_333));
|
||||
assert_eq!(Duration::seconds(-1) / 2, Duration::milliseconds(-500));
|
||||
assert_eq!(Duration::seconds(1) / -2, Duration::milliseconds(-500));
|
||||
assert_eq!(Duration::seconds(-1) / -2, Duration::milliseconds(500));
|
||||
assert_eq!(Duration::seconds(-4) / 3, Duration::nanoseconds(-1_333_333_333));
|
||||
assert_eq!(Duration::seconds(-4) / -3, Duration::nanoseconds(1_333_333_333));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_duration_fmt() {
|
||||
assert_eq!(Duration::zero().to_string(), "PT0S");
|
||||
assert_eq!(Duration::days(42).to_string(), "P42D");
|
||||
assert_eq!(Duration::days(-42).to_string(), "-P42D");
|
||||
assert_eq!(Duration::seconds(42).to_string(), "PT42S");
|
||||
assert_eq!(Duration::milliseconds(42).to_string(), "PT0.042S");
|
||||
assert_eq!(Duration::microseconds(42).to_string(), "PT0.000042S");
|
||||
assert_eq!(Duration::nanoseconds(42).to_string(), "PT0.000000042S");
|
||||
assert_eq!((Duration::days(7) + Duration::milliseconds(6543)).to_string(),
|
||||
"P7DT6.543S");
|
||||
assert_eq!(Duration::seconds(-86401).to_string(), "-P1DT1S");
|
||||
assert_eq!(Duration::nanoseconds(-1).to_string(), "-PT0.000000001S");
|
||||
|
||||
// the format specifier should have no effect on `Duration`
|
||||
assert_eq!(format!("{:30}", Duration::days(1) + Duration::milliseconds(2345)),
|
||||
"P1DT2.345S");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_to_std() {
|
||||
assert_eq!(Duration::seconds(1).to_std(), Ok(StdDuration::new(1, 0)));
|
||||
assert_eq!(Duration::seconds(86401).to_std(), Ok(StdDuration::new(86401, 0)));
|
||||
assert_eq!(Duration::milliseconds(123).to_std(), Ok(StdDuration::new(0, 123000000)));
|
||||
assert_eq!(Duration::milliseconds(123765).to_std(), Ok(StdDuration::new(123, 765000000)));
|
||||
assert_eq!(Duration::nanoseconds(777).to_std(), Ok(StdDuration::new(0, 777)));
|
||||
assert_eq!(MAX.to_std(), Ok(StdDuration::new(9223372036854775, 807000000)));
|
||||
assert_eq!(Duration::seconds(-1).to_std(),
|
||||
Err(OutOfRangeError(())));
|
||||
assert_eq!(Duration::milliseconds(-1).to_std(),
|
||||
Err(OutOfRangeError(())));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_from_std() {
|
||||
assert_eq!(Ok(Duration::seconds(1)),
|
||||
Duration::from_std(StdDuration::new(1, 0)));
|
||||
assert_eq!(Ok(Duration::seconds(86401)),
|
||||
Duration::from_std(StdDuration::new(86401, 0)));
|
||||
assert_eq!(Ok(Duration::milliseconds(123)),
|
||||
Duration::from_std(StdDuration::new(0, 123000000)));
|
||||
assert_eq!(Ok(Duration::milliseconds(123765)),
|
||||
Duration::from_std(StdDuration::new(123, 765000000)));
|
||||
assert_eq!(Ok(Duration::nanoseconds(777)),
|
||||
Duration::from_std(StdDuration::new(0, 777)));
|
||||
assert_eq!(Ok(MAX),
|
||||
Duration::from_std(StdDuration::new(9223372036854775, 807000000)));
|
||||
assert_eq!(Duration::from_std(StdDuration::new(9223372036854776, 0)),
|
||||
Err(OutOfRangeError(())));
|
||||
assert_eq!(Duration::from_std(StdDuration::new(9223372036854775, 807000001)),
|
||||
Err(OutOfRangeError(())));
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue