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0.5: Let TimeDelta::{weeks, days, hours, minutes, seconds} take i32 #1515

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merged 6 commits into from
Mar 14, 2024
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0.5: Let TimeDelta::{weeks, days, hours, minutes, seconds} take i32 #1515

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f2d1bc3
Format doctests
pitdicker Mar 14, 2024
d6d667d
Make `TimeDelta::weeks` infallible
pitdicker Mar 13, 2024
785759a
Make `TimeDelta::days` infallible
pitdicker Mar 13, 2024
f3f5805
Make `TimeDelta::hours` infallible
pitdicker Mar 14, 2024
31cfe39
Make `TimeDelta::minutes` infallible
pitdicker Mar 14, 2024
4f79a8a
Make `TimeDelta::seconds` infallible
pitdicker Mar 14, 2024
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2 changes: 1 addition & 1 deletion bench/benches/chrono.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -199,7 +199,7 @@ fn bench_format_manual(c: &mut Criterion) {

fn bench_naivedate_add_signed(c: &mut Criterion) {
let date = NaiveDate::from_ymd(2023, 7, 29).unwrap();
let extra = TimeDelta::days(25).unwrap();
let extra = TimeDelta::days(25);
c.bench_function("bench_naivedate_add_signed", |b| {
b.iter(|| black_box(date).checked_add_signed(extra).unwrap())
});
Expand Down
42 changes: 18 additions & 24 deletions src/datetime/tests.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ impl TimeZone for DstTester {
DstTester::TO_WINTER_MONTH_DAY.1,
)
.unwrap()
.and_time(DstTester::transition_start_local() - TimeDelta::hours(1).unwrap());
.and_time(DstTester::transition_start_local() - TimeDelta::hours(1));

let local_to_summer_transition_start = NaiveDate::from_ymd(
local.year(),
Expand All @@ -67,7 +67,7 @@ impl TimeZone for DstTester {
DstTester::TO_SUMMER_MONTH_DAY.1,
)
.unwrap()
.and_time(DstTester::transition_start_local() + TimeDelta::hours(1).unwrap());
.and_time(DstTester::transition_start_local() + TimeDelta::hours(1));

if *local < local_to_winter_transition_end || *local >= local_to_summer_transition_end {
LocalResult::Single(DstTester::summer_offset())
Expand Down Expand Up @@ -569,12 +569,12 @@ fn test_datetime_offset() {
let dt = Utc.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap();
assert_eq!(dt, edt.with_ymd_and_hms(2014, 5, 6, 3, 8, 9).unwrap());
assert_eq!(
dt + TimeDelta::seconds(3600 + 60 + 1).unwrap(),
dt + TimeDelta::seconds(3600 + 60 + 1),
Utc.with_ymd_and_hms(2014, 5, 6, 8, 9, 10).unwrap()
);
assert_eq!(
dt.signed_duration_since(edt.with_ymd_and_hms(2014, 5, 6, 10, 11, 12).unwrap()),
TimeDelta::seconds(-7 * 3600 - 3 * 60 - 3).unwrap()
TimeDelta::seconds(-7 * 3600 - 3 * 60 - 3)
);

assert_eq!(*Utc.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap().offset(), Utc);
Expand Down Expand Up @@ -1389,20 +1389,20 @@ fn test_datetime_add_assign() {
let datetime = naivedatetime.and_utc();
let mut datetime_add = datetime;

datetime_add += TimeDelta::seconds(60).unwrap();
assert_eq!(datetime_add, datetime + TimeDelta::seconds(60).unwrap());
datetime_add += TimeDelta::seconds(60);
assert_eq!(datetime_add, datetime + TimeDelta::seconds(60));

let timezone = FixedOffset::east(60 * 60).unwrap();
let datetime = datetime.with_timezone(&timezone);
let datetime_add = datetime_add.with_timezone(&timezone);

assert_eq!(datetime_add, datetime + TimeDelta::seconds(60).unwrap());
assert_eq!(datetime_add, datetime + TimeDelta::seconds(60));

let timezone = FixedOffset::west(2 * 60 * 60).unwrap();
let datetime = datetime.with_timezone(&timezone);
let datetime_add = datetime_add.with_timezone(&timezone);

assert_eq!(datetime_add, datetime + TimeDelta::seconds(60).unwrap());
assert_eq!(datetime_add, datetime + TimeDelta::seconds(60));
}

#[test]
Expand All @@ -1415,8 +1415,8 @@ fn test_datetime_add_assign_local() {

// ensure we cross a DST transition
for i in 1..=365 {
datetime_add += TimeDelta::days(1).unwrap();
assert_eq!(datetime_add, datetime + TimeDelta::days(i).unwrap())
datetime_add += TimeDelta::days(1);
assert_eq!(datetime_add, datetime + TimeDelta::days(i))
}
}

Expand All @@ -1426,20 +1426,20 @@ fn test_datetime_sub_assign() {
let datetime = naivedatetime.and_utc();
let mut datetime_sub = datetime;

datetime_sub -= TimeDelta::minutes(90).unwrap();
assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90).unwrap());
datetime_sub -= TimeDelta::minutes(90);
assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90));

let timezone = FixedOffset::east(60 * 60).unwrap();
let datetime = datetime.with_timezone(&timezone);
let datetime_sub = datetime_sub.with_timezone(&timezone);

assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90).unwrap());
assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90));

let timezone = FixedOffset::west(2 * 60 * 60).unwrap();
let datetime = datetime.with_timezone(&timezone);
let datetime_sub = datetime_sub.with_timezone(&timezone);

assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90).unwrap());
assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90));
}

#[test]
Expand Down Expand Up @@ -1522,10 +1522,7 @@ fn test_min_max_setters() {
assert_eq!(beyond_min.with_ordinal0(beyond_min.ordinal0()), Some(beyond_min));
assert_eq!(beyond_min.with_ordinal0(200), None);
assert_eq!(beyond_min.with_hour(beyond_min.hour()), Some(beyond_min));
assert_eq!(
beyond_min.with_hour(23),
beyond_min.checked_add_signed(TimeDelta::hours(1).unwrap())
);
assert_eq!(beyond_min.with_hour(23), beyond_min.checked_add_signed(TimeDelta::hours(1)));
assert_eq!(beyond_min.with_hour(5), None);
assert_eq!(beyond_min.with_minute(0), Some(beyond_min));
assert_eq!(beyond_min.with_second(0), Some(beyond_min));
Expand All @@ -1546,10 +1543,7 @@ fn test_min_max_setters() {
assert_eq!(beyond_max.with_ordinal0(beyond_max.ordinal0()), Some(beyond_max));
assert_eq!(beyond_max.with_ordinal0(200), None);
assert_eq!(beyond_max.with_hour(beyond_max.hour()), Some(beyond_max));
assert_eq!(
beyond_max.with_hour(0),
beyond_max.checked_sub_signed(TimeDelta::hours(1).unwrap())
);
assert_eq!(beyond_max.with_hour(0), beyond_max.checked_sub_signed(TimeDelta::hours(1)));
assert_eq!(beyond_max.with_hour(5), None);
assert_eq!(beyond_max.with_minute(beyond_max.minute()), Some(beyond_max));
assert_eq!(beyond_max.with_second(beyond_max.second()), Some(beyond_max));
Expand Down Expand Up @@ -1630,8 +1624,8 @@ fn test_datetime_sub_assign_local() {

// ensure we cross a DST transition
for i in 1..=365 {
datetime_sub -= TimeDelta::days(1).unwrap();
assert_eq!(datetime_sub, datetime - TimeDelta::days(i).unwrap())
datetime_sub -= TimeDelta::days(1);
assert_eq!(datetime_sub, datetime - TimeDelta::days(i))
}
}

Expand Down
2 changes: 1 addition & 1 deletion src/format/parsed.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -795,7 +795,7 @@ impl Parsed {
59 => {}
// `datetime` is known to be off by one second.
0 => {
datetime -= TimeDelta::seconds(1).unwrap();
datetime -= TimeDelta::seconds(1);
}
// otherwise it is impossible.
_ => return Err(IMPOSSIBLE),
Expand Down
8 changes: 4 additions & 4 deletions src/lib.rs
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Expand Up @@ -199,11 +199,11 @@
//! // arithmetic operations
//! let dt1 = Utc.with_ymd_and_hms(2014, 11, 14, 8, 9, 10).unwrap();
//! let dt2 = Utc.with_ymd_and_hms(2014, 11, 14, 10, 9, 8).unwrap();
//! assert_eq!(dt1.signed_duration_since(dt2), TimeDelta::seconds(-2 * 3600 + 2).unwrap());
//! assert_eq!(dt2.signed_duration_since(dt1), TimeDelta::seconds(2 * 3600 - 2).unwrap());
//! assert_eq!(Utc.with_ymd_and_hms(1970, 1, 1, 0, 0, 0).unwrap() + TimeDelta::seconds(1_000_000_000).unwrap(),
//! assert_eq!(dt1.signed_duration_since(dt2), TimeDelta::seconds(-2 * 3600 + 2));
//! assert_eq!(dt2.signed_duration_since(dt1), TimeDelta::seconds(2 * 3600 - 2));
//! assert_eq!(Utc.with_ymd_and_hms(1970, 1, 1, 0, 0, 0).unwrap() + TimeDelta::seconds(1_000_000_000),
//! Utc.with_ymd_and_hms(2001, 9, 9, 1, 46, 40).unwrap());
//! assert_eq!(Utc.with_ymd_and_hms(1970, 1, 1, 0, 0, 0).unwrap() - TimeDelta::seconds(1_000_000_000).unwrap(),
//! assert_eq!(Utc.with_ymd_and_hms(1970, 1, 1, 0, 0, 0).unwrap() - TimeDelta::seconds(1_000_000_000),
//! Utc.with_ymd_and_hms(1938, 4, 24, 22, 13, 20).unwrap());
//! ```
//!
Expand Down
99 changes: 41 additions & 58 deletions src/naive/date/mod.rs
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Expand Up @@ -35,7 +35,7 @@ use crate::format::{
};
use crate::month::Months;
use crate::naive::{Days, IsoWeek, NaiveDateTime, NaiveTime, NaiveWeek};
use crate::{expect, ok, try_err, try_ok_or, try_opt};
use crate::{ok, try_err, try_ok_or, try_opt};
use crate::{Datelike, Error, TimeDelta, Weekday};

use super::internals::{Mdf, YearFlags};
Expand Down Expand Up @@ -872,16 +872,16 @@ impl NaiveDate {
///
/// let d = NaiveDate::from_ymd(2015, 9, 5).unwrap();
/// assert_eq!(
/// d.checked_add_signed(TimeDelta::days(40).unwrap()),
/// d.checked_add_signed(TimeDelta::days(40)),
/// Some(NaiveDate::from_ymd(2015, 10, 15).unwrap())
/// );
/// assert_eq!(
/// d.checked_add_signed(TimeDelta::days(-40).unwrap()),
/// d.checked_add_signed(TimeDelta::days(-40)),
/// Some(NaiveDate::from_ymd(2015, 7, 27).unwrap())
/// );
/// assert_eq!(d.checked_add_signed(TimeDelta::days(1_000_000_000).unwrap()), None);
/// assert_eq!(d.checked_add_signed(TimeDelta::days(-1_000_000_000).unwrap()), None);
/// assert_eq!(NaiveDate::MAX.checked_add_signed(TimeDelta::days(1).unwrap()), None);
/// assert_eq!(d.checked_add_signed(TimeDelta::days(1_000_000_000)), None);
/// assert_eq!(d.checked_add_signed(TimeDelta::days(-1_000_000_000)), None);
/// assert_eq!(NaiveDate::MAX.checked_add_signed(TimeDelta::days(1)), None);
/// ```
#[must_use]
pub const fn checked_add_signed(self, rhs: TimeDelta) -> Option<NaiveDate> {
Expand All @@ -905,16 +905,16 @@ impl NaiveDate {
///
/// let d = NaiveDate::from_ymd(2015, 9, 5).unwrap();
/// assert_eq!(
/// d.checked_sub_signed(TimeDelta::days(40).unwrap()),
/// d.checked_sub_signed(TimeDelta::days(40)),
/// Some(NaiveDate::from_ymd(2015, 7, 27).unwrap())
/// );
/// assert_eq!(
/// d.checked_sub_signed(TimeDelta::days(-40).unwrap()),
/// d.checked_sub_signed(TimeDelta::days(-40)),
/// Some(NaiveDate::from_ymd(2015, 10, 15).unwrap())
/// );
/// assert_eq!(d.checked_sub_signed(TimeDelta::days(1_000_000_000).unwrap()), None);
/// assert_eq!(d.checked_sub_signed(TimeDelta::days(-1_000_000_000).unwrap()), None);
/// assert_eq!(NaiveDate::MIN.checked_sub_signed(TimeDelta::days(1).unwrap()), None);
/// assert_eq!(d.checked_sub_signed(TimeDelta::days(1_000_000_000)), None);
/// assert_eq!(d.checked_sub_signed(TimeDelta::days(-1_000_000_000)), None);
/// assert_eq!(NaiveDate::MIN.checked_sub_signed(TimeDelta::days(1)), None);
/// ```
#[must_use]
pub const fn checked_sub_signed(self, rhs: TimeDelta) -> Option<NaiveDate> {
Expand All @@ -940,31 +940,23 @@ impl NaiveDate {
/// let since = NaiveDate::signed_duration_since;
///
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2014, 1, 1)), TimeDelta::zero());
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2013, 12, 31)), TimeDelta::days(1).unwrap());
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2014, 1, 2)), TimeDelta::days(-1).unwrap());
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2013, 9, 23)), TimeDelta::days(100).unwrap());
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2013, 1, 1)), TimeDelta::days(365).unwrap());
/// assert_eq!(
/// since(from_ymd(2014, 1, 1), from_ymd(2010, 1, 1)),
/// TimeDelta::days(365 * 4 + 1).unwrap()
/// );
/// assert_eq!(
/// since(from_ymd(2014, 1, 1), from_ymd(1614, 1, 1)),
/// TimeDelta::days(365 * 400 + 97).unwrap()
/// );
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2013, 12, 31)), TimeDelta::days(1));
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2014, 1, 2)), TimeDelta::days(-1));
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2013, 9, 23)), TimeDelta::days(100));
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2013, 1, 1)), TimeDelta::days(365));
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(2010, 1, 1)), TimeDelta::days(365 * 4 + 1));
/// assert_eq!(since(from_ymd(2014, 1, 1), from_ymd(1614, 1, 1)), TimeDelta::days(365 * 400 + 97));
/// ```
#[must_use]
pub const fn signed_duration_since(self, rhs: NaiveDate) -> TimeDelta {
let year1 = self.year();
let year2 = rhs.year();
let (year1_div_400, year1_mod_400) = div_mod_floor(year1, 400);
let (year2_div_400, year2_mod_400) = div_mod_floor(year2, 400);
let cycle1 = yo_to_cycle(year1_mod_400 as u32, self.ordinal()) as i64;
let cycle2 = yo_to_cycle(year2_mod_400 as u32, rhs.ordinal()) as i64;
let days = (year1_div_400 as i64 - year2_div_400 as i64) * 146_097 + (cycle1 - cycle2);
// The range of `TimeDelta` is ca. 585 million years, the range of `NaiveDate` ca. 525.000
// years.
expect!(TimeDelta::days(days), "always in range")
let cycle1 = yo_to_cycle(year1_mod_400 as u32, self.ordinal()) as i32;
let cycle2 = yo_to_cycle(year2_mod_400 as u32, rhs.ordinal()) as i32;
let days = (year1_div_400 - year2_div_400) * 146_097 + (cycle1 - cycle2);
TimeDelta::days(days)
}

/// Returns the number of whole years from the given `base` until `self`.
Expand Down Expand Up @@ -1707,16 +1699,13 @@ impl Datelike for NaiveDate {
/// let from_ymd = |y, m, d| NaiveDate::from_ymd(y, m, d).unwrap();
///
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::zero(), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::seconds(86399).unwrap(), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::seconds(-86399).unwrap(), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(1).unwrap(), from_ymd(2014, 1, 2));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(-1).unwrap(), from_ymd(2013, 12, 31));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(364).unwrap(), from_ymd(2014, 12, 31));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(365 * 4 + 1).unwrap(), from_ymd(2018, 1, 1));
/// assert_eq!(
/// from_ymd(2014, 1, 1) + TimeDelta::days(365 * 400 + 97).unwrap(),
/// from_ymd(2414, 1, 1)
/// );
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::seconds(86399), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::seconds(-86399), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(1), from_ymd(2014, 1, 2));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(-1), from_ymd(2013, 12, 31));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(364), from_ymd(2014, 12, 31));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(365 * 4 + 1), from_ymd(2018, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) + TimeDelta::days(365 * 400 + 97), from_ymd(2414, 1, 1));
/// ```
///
/// [`NaiveDate::checked_add_signed`]: crate::NaiveDate::checked_add_signed
Expand Down Expand Up @@ -1853,16 +1842,13 @@ impl Sub<Days> for NaiveDate {
/// let from_ymd = |y, m, d| NaiveDate::from_ymd(y, m, d).unwrap();
///
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::zero(), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::seconds(86399).unwrap(), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::seconds(-86399).unwrap(), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(1).unwrap(), from_ymd(2013, 12, 31));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(-1).unwrap(), from_ymd(2014, 1, 2));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(364).unwrap(), from_ymd(2013, 1, 2));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(365 * 4 + 1).unwrap(), from_ymd(2010, 1, 1));
/// assert_eq!(
/// from_ymd(2014, 1, 1) - TimeDelta::days(365 * 400 + 97).unwrap(),
/// from_ymd(1614, 1, 1)
/// );
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::seconds(86399), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::seconds(-86399), from_ymd(2014, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(1), from_ymd(2013, 12, 31));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(-1), from_ymd(2014, 1, 2));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(364), from_ymd(2013, 1, 2));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(365 * 4 + 1), from_ymd(2010, 1, 1));
/// assert_eq!(from_ymd(2014, 1, 1) - TimeDelta::days(365 * 400 + 97), from_ymd(1614, 1, 1));
/// ```
///
/// [`NaiveDate::checked_sub_signed`]: crate::NaiveDate::checked_sub_signed
Expand Down Expand Up @@ -1909,15 +1895,12 @@ impl SubAssign<TimeDelta> for NaiveDate {
/// let from_ymd = |y, m, d| NaiveDate::from_ymd(y, m, d).unwrap();
///
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2014, 1, 1), TimeDelta::zero());
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 12, 31), TimeDelta::days(1).unwrap());
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2014, 1, 2), TimeDelta::days(-1).unwrap());
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 9, 23), TimeDelta::days(100).unwrap());
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 1, 1), TimeDelta::days(365).unwrap());
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2010, 1, 1), TimeDelta::days(365 * 4 + 1).unwrap());
/// assert_eq!(
/// from_ymd(2014, 1, 1) - from_ymd(1614, 1, 1),
/// TimeDelta::days(365 * 400 + 97).unwrap()
/// );
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 12, 31), TimeDelta::days(1));
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2014, 1, 2), TimeDelta::days(-1));
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 9, 23), TimeDelta::days(100));
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2013, 1, 1), TimeDelta::days(365));
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(2010, 1, 1), TimeDelta::days(365 * 4 + 1));
/// assert_eq!(from_ymd(2014, 1, 1) - from_ymd(1614, 1, 1), TimeDelta::days(365 * 400 + 97));
/// ```
impl Sub<NaiveDate> for NaiveDate {
type Output = TimeDelta;
Expand Down
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