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| </pre><pre class="rust"><code><span class="doccomment">//! The [`Duration`] struct and its associated `impl`s. |
| |
| </span><span class="kw">use </span>core::cmp::Ordering; |
| <span class="kw">use </span>core::fmt; |
| <span class="kw">use </span>core::iter::Sum; |
| <span class="kw">use </span>core::ops::{Add, AddAssign, Div, Mul, Neg, Sub, SubAssign}; |
| <span class="kw">use </span>core::time::Duration <span class="kw">as </span>StdDuration; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::convert::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">crate</span>::error; |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::Instant; |
| |
| <span class="doccomment">/// By explicitly inserting this enum where padding is expected, the compiler is able to better |
| /// perform niche value optimization. |
| </span><span class="attribute">#[repr(u32)] |
| #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">enum </span>Padding { |
| <span class="attribute">#[allow(clippy::missing_docs_in_private_items)] |
| </span>Optimize, |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>Padding { |
| <span class="kw">fn </span>default() -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::Optimize |
| } |
| } |
| |
| <span class="doccomment">/// A span of time with nanosecond precision. |
| /// |
| /// Each `Duration` is composed of a whole number of seconds and a fractional part represented in |
| /// nanoseconds. |
| /// |
| /// This implementation allows for negative durations, unlike [`core::time::Duration`]. |
| </span><span class="attribute">#[derive(Clone, Copy, Default, PartialEq, Eq, Hash, PartialOrd, Ord)] |
| </span><span class="kw">pub struct </span>Duration { |
| <span class="doccomment">/// Number of whole seconds. |
| </span>seconds: i64, |
| <span class="doccomment">/// Number of nanoseconds within the second. The sign always matches the `seconds` field. |
| </span>nanoseconds: i32, <span class="comment">// always -10^9 < nanoseconds < 10^9 |
| </span><span class="attribute">#[allow(clippy::missing_docs_in_private_items)] |
| </span>padding: Padding, |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Duration { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| f.debug_struct(<span class="string">"Duration"</span>) |
| .field(<span class="string">"seconds"</span>, <span class="kw-2">&</span><span class="self">self</span>.seconds) |
| .field(<span class="string">"nanoseconds"</span>, <span class="kw-2">&</span><span class="self">self</span>.nanoseconds) |
| .finish() |
| } |
| } |
| |
| <span class="kw">impl </span>Duration { |
| <span class="comment">// region: constants |
| </span><span class="doccomment">/// Equivalent to `0.seconds()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::ZERO, 0.seconds()); |
| /// ``` |
| </span><span class="kw">pub const </span>ZERO: <span class="self">Self </span>= <span class="self">Self</span>::seconds(<span class="number">0</span>); |
| |
| <span class="doccomment">/// Equivalent to `1.nanoseconds()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::NANOSECOND, 1.nanoseconds()); |
| /// ``` |
| </span><span class="kw">pub const </span>NANOSECOND: <span class="self">Self </span>= <span class="self">Self</span>::nanoseconds(<span class="number">1</span>); |
| |
| <span class="doccomment">/// Equivalent to `1.microseconds()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::MICROSECOND, 1.microseconds()); |
| /// ``` |
| </span><span class="kw">pub const </span>MICROSECOND: <span class="self">Self </span>= <span class="self">Self</span>::microseconds(<span class="number">1</span>); |
| |
| <span class="doccomment">/// Equivalent to `1.milliseconds()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::MILLISECOND, 1.milliseconds()); |
| /// ``` |
| </span><span class="kw">pub const </span>MILLISECOND: <span class="self">Self </span>= <span class="self">Self</span>::milliseconds(<span class="number">1</span>); |
| |
| <span class="doccomment">/// Equivalent to `1.seconds()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::SECOND, 1.seconds()); |
| /// ``` |
| </span><span class="kw">pub const </span>SECOND: <span class="self">Self </span>= <span class="self">Self</span>::seconds(<span class="number">1</span>); |
| |
| <span class="doccomment">/// Equivalent to `1.minutes()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::MINUTE, 1.minutes()); |
| /// ``` |
| </span><span class="kw">pub const </span>MINUTE: <span class="self">Self </span>= <span class="self">Self</span>::minutes(<span class="number">1</span>); |
| |
| <span class="doccomment">/// Equivalent to `1.hours()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::HOUR, 1.hours()); |
| /// ``` |
| </span><span class="kw">pub const </span>HOUR: <span class="self">Self </span>= <span class="self">Self</span>::hours(<span class="number">1</span>); |
| |
| <span class="doccomment">/// Equivalent to `1.days()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::DAY, 1.days()); |
| /// ``` |
| </span><span class="kw">pub const </span>DAY: <span class="self">Self </span>= <span class="self">Self</span>::days(<span class="number">1</span>); |
| |
| <span class="doccomment">/// Equivalent to `1.weeks()`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::WEEK, 1.weeks()); |
| /// ``` |
| </span><span class="kw">pub const </span>WEEK: <span class="self">Self </span>= <span class="self">Self</span>::weeks(<span class="number">1</span>); |
| |
| <span class="doccomment">/// The minimum possible duration. Adding any negative duration to this will cause an overflow. |
| </span><span class="kw">pub const </span>MIN: <span class="self">Self </span>= <span class="self">Self</span>::new_unchecked(i64::MIN, -((Nanosecond.per(Second) - <span class="number">1</span>) <span class="kw">as </span>i32)); |
| |
| <span class="doccomment">/// The maximum possible duration. Adding any positive duration to this will cause an overflow. |
| </span><span class="kw">pub const </span>MAX: <span class="self">Self </span>= <span class="self">Self</span>::new_unchecked(i64::MAX, (Nanosecond.per(Second) - <span class="number">1</span>) <span class="kw">as _</span>); |
| <span class="comment">// endregion constants |
| |
| // region: is_{sign} |
| </span><span class="doccomment">/// Check if a duration is exactly zero. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert!(0.seconds().is_zero()); |
| /// assert!(!1.nanoseconds().is_zero()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>is_zero(<span class="self">self</span>) -> bool { |
| <span class="self">self</span>.seconds == <span class="number">0 </span>&& <span class="self">self</span>.nanoseconds == <span class="number">0 |
| </span>} |
| |
| <span class="doccomment">/// Check if a duration is negative. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert!((-1).seconds().is_negative()); |
| /// assert!(!0.seconds().is_negative()); |
| /// assert!(!1.seconds().is_negative()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>is_negative(<span class="self">self</span>) -> bool { |
| <span class="self">self</span>.seconds < <span class="number">0 </span>|| <span class="self">self</span>.nanoseconds < <span class="number">0 |
| </span>} |
| |
| <span class="doccomment">/// Check if a duration is positive. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert!(1.seconds().is_positive()); |
| /// assert!(!0.seconds().is_positive()); |
| /// assert!(!(-1).seconds().is_positive()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>is_positive(<span class="self">self</span>) -> bool { |
| <span class="self">self</span>.seconds > <span class="number">0 </span>|| <span class="self">self</span>.nanoseconds > <span class="number">0 |
| </span>} |
| <span class="comment">// endregion is_{sign} |
| |
| // region: abs |
| </span><span class="doccomment">/// Get the absolute value of the duration. |
| /// |
| /// This method saturates the returned value if it would otherwise overflow. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.seconds().abs(), 1.seconds()); |
| /// assert_eq!(0.seconds().abs(), 0.seconds()); |
| /// assert_eq!((-1).seconds().abs(), 1.seconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>abs(<span class="self">self</span>) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::new_unchecked(<span class="self">self</span>.seconds.saturating_abs(), <span class="self">self</span>.nanoseconds.abs()) |
| } |
| |
| <span class="doccomment">/// Convert the existing `Duration` to a `std::time::Duration` and its sign. This returns a |
| /// [`std::time::Duration`] and does not saturate the returned value (unlike [`Duration::abs`]). |
| /// |
| /// ```rust |
| /// # use time::ext::{NumericalDuration, NumericalStdDuration}; |
| /// assert_eq!(1.seconds().unsigned_abs(), 1.std_seconds()); |
| /// assert_eq!(0.seconds().unsigned_abs(), 0.std_seconds()); |
| /// assert_eq!((-1).seconds().unsigned_abs(), 1.std_seconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>unsigned_abs(<span class="self">self</span>) -> StdDuration { |
| StdDuration::new(<span class="self">self</span>.seconds.unsigned_abs(), <span class="self">self</span>.nanoseconds.unsigned_abs()) |
| } |
| <span class="comment">// endregion abs |
| |
| // region: constructors |
| </span><span class="doccomment">/// Create a new `Duration` without checking the validity of the components. |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>new_unchecked(seconds: i64, nanoseconds: i32) -> <span class="self">Self </span>{ |
| <span class="kw">if </span>seconds < <span class="number">0 </span>{ |
| <span class="macro">debug_assert!</span>(nanoseconds <= <span class="number">0</span>); |
| <span class="macro">debug_assert!</span>(nanoseconds > -(Nanosecond.per(Second) <span class="kw">as </span>i32)); |
| } <span class="kw">else if </span>seconds > <span class="number">0 </span>{ |
| <span class="macro">debug_assert!</span>(nanoseconds >= <span class="number">0</span>); |
| <span class="macro">debug_assert!</span>(nanoseconds < Nanosecond.per(Second) <span class="kw">as _</span>); |
| } <span class="kw">else </span>{ |
| <span class="macro">debug_assert!</span>(nanoseconds.unsigned_abs() < Nanosecond.per(Second)); |
| } |
| |
| <span class="self">Self </span>{ |
| seconds, |
| nanoseconds, |
| padding: Padding::Optimize, |
| } |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the provided seconds and nanoseconds. If nanoseconds is at |
| /// least ±10<sup>9</sup>, it will wrap to the number of seconds. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::new(1, 0), 1.seconds()); |
| /// assert_eq!(Duration::new(-1, 0), (-1).seconds()); |
| /// assert_eq!(Duration::new(1, 2_000_000_000), 3.seconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>new(<span class="kw-2">mut </span>seconds: i64, <span class="kw-2">mut </span>nanoseconds: i32) -> <span class="self">Self </span>{ |
| seconds = <span class="macro">expect_opt!</span>( |
| seconds.checked_add(nanoseconds <span class="kw">as </span>i64 / Nanosecond.per(Second) <span class="kw">as </span>i64), |
| <span class="string">"overflow constructing `time::Duration`" |
| </span>); |
| nanoseconds %= Nanosecond.per(Second) <span class="kw">as </span>i32; |
| |
| <span class="kw">if </span>seconds > <span class="number">0 </span>&& nanoseconds < <span class="number">0 </span>{ |
| <span class="comment">// `seconds` cannot overflow here because it is positive. |
| </span>seconds -= <span class="number">1</span>; |
| nanoseconds += Nanosecond.per(Second) <span class="kw">as </span>i32; |
| } <span class="kw">else if </span>seconds < <span class="number">0 </span>&& nanoseconds > <span class="number">0 </span>{ |
| <span class="comment">// `seconds` cannot overflow here because it is negative. |
| </span>seconds += <span class="number">1</span>; |
| nanoseconds -= Nanosecond.per(Second) <span class="kw">as </span>i32; |
| } |
| |
| <span class="self">Self</span>::new_unchecked(seconds, nanoseconds) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of weeks. Equivalent to |
| /// `Duration::seconds(weeks * 604_800)`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::weeks(1), 604_800.seconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>weeks(weeks: i64) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::seconds(<span class="macro">expect_opt!</span>( |
| weeks.checked_mul(Second.per(Week) <span class="kw">as _</span>), |
| <span class="string">"overflow constructing `time::Duration`" |
| </span>)) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of days. Equivalent to |
| /// `Duration::seconds(days * 86_400)`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::days(1), 86_400.seconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>days(days: i64) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::seconds(<span class="macro">expect_opt!</span>( |
| days.checked_mul(Second.per(Day) <span class="kw">as _</span>), |
| <span class="string">"overflow constructing `time::Duration`" |
| </span>)) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of hours. Equivalent to |
| /// `Duration::seconds(hours * 3_600)`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::hours(1), 3_600.seconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>hours(hours: i64) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::seconds(<span class="macro">expect_opt!</span>( |
| hours.checked_mul(Second.per(Hour) <span class="kw">as _</span>), |
| <span class="string">"overflow constructing `time::Duration`" |
| </span>)) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of minutes. Equivalent to |
| /// `Duration::seconds(minutes * 60)`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::minutes(1), 60.seconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>minutes(minutes: i64) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::seconds(<span class="macro">expect_opt!</span>( |
| minutes.checked_mul(Second.per(Minute) <span class="kw">as _</span>), |
| <span class="string">"overflow constructing `time::Duration`" |
| </span>)) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of seconds. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::seconds(1), 1_000.milliseconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>seconds(seconds: i64) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::new_unchecked(seconds, <span class="number">0</span>) |
| } |
| |
| <span class="doccomment">/// Creates a new `Duration` from the specified number of seconds represented as `f64`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::seconds_f64(0.5), 0.5.seconds()); |
| /// assert_eq!(Duration::seconds_f64(-0.5), -0.5.seconds()); |
| /// ``` |
| </span><span class="kw">pub fn </span>seconds_f64(seconds: f64) -> <span class="self">Self </span>{ |
| <span class="kw">if </span>seconds > i64::MAX <span class="kw">as </span>f64 || seconds < i64::MIN <span class="kw">as </span>f64 { |
| <span class="kw">crate</span>::expect_failed(<span class="string">"overflow constructing `time::Duration`"</span>); |
| } |
| <span class="kw">if </span>seconds.is_nan() { |
| <span class="kw">crate</span>::expect_failed(<span class="string">"passed NaN to `time::Duration::seconds_f64`"</span>); |
| } |
| <span class="kw">let </span>seconds_truncated = seconds <span class="kw">as </span>i64; |
| <span class="comment">// This only works because we handle the overflow condition above. |
| </span><span class="kw">let </span>nanoseconds = |
| ((seconds - seconds_truncated <span class="kw">as </span>f64) * Nanosecond.per(Second) <span class="kw">as </span>f64) <span class="kw">as </span>i32; |
| <span class="self">Self</span>::new_unchecked(seconds_truncated, nanoseconds) |
| } |
| |
| <span class="doccomment">/// Creates a new `Duration` from the specified number of seconds represented as `f32`. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::seconds_f32(0.5), 0.5.seconds()); |
| /// assert_eq!(Duration::seconds_f32(-0.5), (-0.5).seconds()); |
| /// ``` |
| </span><span class="kw">pub fn </span>seconds_f32(seconds: f32) -> <span class="self">Self </span>{ |
| <span class="kw">if </span>seconds > i64::MAX <span class="kw">as </span>f32 || seconds < i64::MIN <span class="kw">as </span>f32 { |
| <span class="kw">crate</span>::expect_failed(<span class="string">"overflow constructing `time::Duration`"</span>); |
| } |
| <span class="kw">if </span>seconds.is_nan() { |
| <span class="kw">crate</span>::expect_failed(<span class="string">"passed NaN to `time::Duration::seconds_f32`"</span>); |
| } |
| <span class="kw">let </span>seconds_truncated = seconds <span class="kw">as </span>i64; |
| <span class="comment">// This only works because we handle the overflow condition above. |
| </span><span class="kw">let </span>nanoseconds = |
| ((seconds - seconds_truncated <span class="kw">as </span>f32) * Nanosecond.per(Second) <span class="kw">as </span>f32) <span class="kw">as </span>i32; |
| <span class="self">Self</span>::new_unchecked(seconds_truncated, nanoseconds) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of milliseconds. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::milliseconds(1), 1_000.microseconds()); |
| /// assert_eq!(Duration::milliseconds(-1), (-1_000).microseconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>milliseconds(milliseconds: i64) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::new_unchecked( |
| milliseconds / Millisecond.per(Second) <span class="kw">as </span>i64, |
| (milliseconds % Millisecond.per(Second) <span class="kw">as </span>i64 * Nanosecond.per(Millisecond) <span class="kw">as </span>i64) |
| <span class="kw">as _</span>, |
| ) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of microseconds. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::microseconds(1), 1_000.nanoseconds()); |
| /// assert_eq!(Duration::microseconds(-1), (-1_000).nanoseconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>microseconds(microseconds: i64) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::new_unchecked( |
| microseconds / Microsecond.per(Second) <span class="kw">as </span>i64, |
| (microseconds % Microsecond.per(Second) <span class="kw">as </span>i64 * Nanosecond.per(Microsecond) <span class="kw">as </span>i64) |
| <span class="kw">as _</span>, |
| ) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of nanoseconds. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(Duration::nanoseconds(1), 1.microseconds() / 1_000); |
| /// assert_eq!(Duration::nanoseconds(-1), (-1).microseconds() / 1_000); |
| /// ``` |
| </span><span class="kw">pub const fn </span>nanoseconds(nanoseconds: i64) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::new_unchecked( |
| nanoseconds / Nanosecond.per(Second) <span class="kw">as </span>i64, |
| (nanoseconds % Nanosecond.per(Second) <span class="kw">as </span>i64) <span class="kw">as _</span>, |
| ) |
| } |
| |
| <span class="doccomment">/// Create a new `Duration` with the given number of nanoseconds. |
| /// |
| /// As the input range cannot be fully mapped to the output, this should only be used where it's |
| /// known to result in a valid value. |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>nanoseconds_i128(nanoseconds: i128) -> <span class="self">Self </span>{ |
| <span class="kw">let </span>seconds = nanoseconds / Nanosecond.per(Second) <span class="kw">as </span>i128; |
| <span class="kw">let </span>nanoseconds = nanoseconds % Nanosecond.per(Second) <span class="kw">as </span>i128; |
| |
| <span class="kw">if </span>seconds > i64::MAX <span class="kw">as </span>i128 || seconds < i64::MIN <span class="kw">as </span>i128 { |
| <span class="kw">crate</span>::expect_failed(<span class="string">"overflow constructing `time::Duration`"</span>); |
| } |
| |
| <span class="self">Self</span>::new_unchecked(seconds <span class="kw">as _</span>, nanoseconds <span class="kw">as _</span>) |
| } |
| <span class="comment">// endregion constructors |
| |
| // region: getters |
| </span><span class="doccomment">/// Get the number of whole weeks in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.weeks().whole_weeks(), 1); |
| /// assert_eq!((-1).weeks().whole_weeks(), -1); |
| /// assert_eq!(6.days().whole_weeks(), 0); |
| /// assert_eq!((-6).days().whole_weeks(), 0); |
| /// ``` |
| </span><span class="kw">pub const fn </span>whole_weeks(<span class="self">self</span>) -> i64 { |
| <span class="self">self</span>.whole_seconds() / Second.per(Week) <span class="kw">as </span>i64 |
| } |
| |
| <span class="doccomment">/// Get the number of whole days in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.days().whole_days(), 1); |
| /// assert_eq!((-1).days().whole_days(), -1); |
| /// assert_eq!(23.hours().whole_days(), 0); |
| /// assert_eq!((-23).hours().whole_days(), 0); |
| /// ``` |
| </span><span class="kw">pub const fn </span>whole_days(<span class="self">self</span>) -> i64 { |
| <span class="self">self</span>.whole_seconds() / Second.per(Day) <span class="kw">as </span>i64 |
| } |
| |
| <span class="doccomment">/// Get the number of whole hours in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.hours().whole_hours(), 1); |
| /// assert_eq!((-1).hours().whole_hours(), -1); |
| /// assert_eq!(59.minutes().whole_hours(), 0); |
| /// assert_eq!((-59).minutes().whole_hours(), 0); |
| /// ``` |
| </span><span class="kw">pub const fn </span>whole_hours(<span class="self">self</span>) -> i64 { |
| <span class="self">self</span>.whole_seconds() / Second.per(Hour) <span class="kw">as </span>i64 |
| } |
| |
| <span class="doccomment">/// Get the number of whole minutes in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.minutes().whole_minutes(), 1); |
| /// assert_eq!((-1).minutes().whole_minutes(), -1); |
| /// assert_eq!(59.seconds().whole_minutes(), 0); |
| /// assert_eq!((-59).seconds().whole_minutes(), 0); |
| /// ``` |
| </span><span class="kw">pub const fn </span>whole_minutes(<span class="self">self</span>) -> i64 { |
| <span class="self">self</span>.whole_seconds() / Second.per(Minute) <span class="kw">as </span>i64 |
| } |
| |
| <span class="doccomment">/// Get the number of whole seconds in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.seconds().whole_seconds(), 1); |
| /// assert_eq!((-1).seconds().whole_seconds(), -1); |
| /// assert_eq!(1.minutes().whole_seconds(), 60); |
| /// assert_eq!((-1).minutes().whole_seconds(), -60); |
| /// ``` |
| </span><span class="kw">pub const fn </span>whole_seconds(<span class="self">self</span>) -> i64 { |
| <span class="self">self</span>.seconds |
| } |
| |
| <span class="doccomment">/// Get the number of fractional seconds in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.5.seconds().as_seconds_f64(), 1.5); |
| /// assert_eq!((-1.5).seconds().as_seconds_f64(), -1.5); |
| /// ``` |
| </span><span class="kw">pub fn </span>as_seconds_f64(<span class="self">self</span>) -> f64 { |
| <span class="self">self</span>.seconds <span class="kw">as </span>f64 + <span class="self">self</span>.nanoseconds <span class="kw">as </span>f64 / Nanosecond.per(Second) <span class="kw">as </span>f64 |
| } |
| |
| <span class="doccomment">/// Get the number of fractional seconds in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.5.seconds().as_seconds_f32(), 1.5); |
| /// assert_eq!((-1.5).seconds().as_seconds_f32(), -1.5); |
| /// ``` |
| </span><span class="kw">pub fn </span>as_seconds_f32(<span class="self">self</span>) -> f32 { |
| <span class="self">self</span>.seconds <span class="kw">as </span>f32 + <span class="self">self</span>.nanoseconds <span class="kw">as </span>f32 / Nanosecond.per(Second) <span class="kw">as </span>f32 |
| } |
| |
| <span class="doccomment">/// Get the number of whole milliseconds in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.seconds().whole_milliseconds(), 1_000); |
| /// assert_eq!((-1).seconds().whole_milliseconds(), -1_000); |
| /// assert_eq!(1.milliseconds().whole_milliseconds(), 1); |
| /// assert_eq!((-1).milliseconds().whole_milliseconds(), -1); |
| /// ``` |
| </span><span class="kw">pub const fn </span>whole_milliseconds(<span class="self">self</span>) -> i128 { |
| <span class="self">self</span>.seconds <span class="kw">as </span>i128 * Millisecond.per(Second) <span class="kw">as </span>i128 |
| + <span class="self">self</span>.nanoseconds <span class="kw">as </span>i128 / Nanosecond.per(Millisecond) <span class="kw">as </span>i128 |
| } |
| |
| <span class="doccomment">/// Get the number of milliseconds past the number of whole seconds. |
| /// |
| /// Always in the range `-1_000..1_000`. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.4.seconds().subsec_milliseconds(), 400); |
| /// assert_eq!((-1.4).seconds().subsec_milliseconds(), -400); |
| /// ``` |
| </span><span class="comment">// Allow the lint, as the value is guaranteed to be less than 1000. |
| </span><span class="kw">pub const fn </span>subsec_milliseconds(<span class="self">self</span>) -> i16 { |
| (<span class="self">self</span>.nanoseconds / Nanosecond.per(Millisecond) <span class="kw">as </span>i32) <span class="kw">as _ |
| </span>} |
| |
| <span class="doccomment">/// Get the number of whole microseconds in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.milliseconds().whole_microseconds(), 1_000); |
| /// assert_eq!((-1).milliseconds().whole_microseconds(), -1_000); |
| /// assert_eq!(1.microseconds().whole_microseconds(), 1); |
| /// assert_eq!((-1).microseconds().whole_microseconds(), -1); |
| /// ``` |
| </span><span class="kw">pub const fn </span>whole_microseconds(<span class="self">self</span>) -> i128 { |
| <span class="self">self</span>.seconds <span class="kw">as </span>i128 * Microsecond.per(Second) <span class="kw">as </span>i128 |
| + <span class="self">self</span>.nanoseconds <span class="kw">as </span>i128 / Nanosecond.per(Microsecond) <span class="kw">as </span>i128 |
| } |
| |
| <span class="doccomment">/// Get the number of microseconds past the number of whole seconds. |
| /// |
| /// Always in the range `-1_000_000..1_000_000`. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.0004.seconds().subsec_microseconds(), 400); |
| /// assert_eq!((-1.0004).seconds().subsec_microseconds(), -400); |
| /// ``` |
| </span><span class="kw">pub const fn </span>subsec_microseconds(<span class="self">self</span>) -> i32 { |
| <span class="self">self</span>.nanoseconds / Nanosecond.per(Microsecond) <span class="kw">as </span>i32 |
| } |
| |
| <span class="doccomment">/// Get the number of nanoseconds in the duration. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.microseconds().whole_nanoseconds(), 1_000); |
| /// assert_eq!((-1).microseconds().whole_nanoseconds(), -1_000); |
| /// assert_eq!(1.nanoseconds().whole_nanoseconds(), 1); |
| /// assert_eq!((-1).nanoseconds().whole_nanoseconds(), -1); |
| /// ``` |
| </span><span class="kw">pub const fn </span>whole_nanoseconds(<span class="self">self</span>) -> i128 { |
| <span class="self">self</span>.seconds <span class="kw">as </span>i128 * Nanosecond.per(Second) <span class="kw">as </span>i128 + <span class="self">self</span>.nanoseconds <span class="kw">as </span>i128 |
| } |
| |
| <span class="doccomment">/// Get the number of nanoseconds past the number of whole seconds. |
| /// |
| /// The returned value will always be in the range `-1_000_000_000..1_000_000_000`. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(1.000_000_400.seconds().subsec_nanoseconds(), 400); |
| /// assert_eq!((-1.000_000_400).seconds().subsec_nanoseconds(), -400); |
| /// ``` |
| </span><span class="kw">pub const fn </span>subsec_nanoseconds(<span class="self">self</span>) -> i32 { |
| <span class="self">self</span>.nanoseconds |
| } |
| <span class="comment">// endregion getters |
| |
| // region: checked arithmetic |
| </span><span class="doccomment">/// Computes `self + rhs`, returning `None` if an overflow occurred. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(5.seconds().checked_add(5.seconds()), Some(10.seconds())); |
| /// assert_eq!(Duration::MAX.checked_add(1.nanoseconds()), None); |
| /// assert_eq!((-5).seconds().checked_add(5.seconds()), Some(0.seconds())); |
| /// ``` |
| </span><span class="kw">pub const fn </span>checked_add(<span class="self">self</span>, rhs: <span class="self">Self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>seconds = <span class="macro">const_try_opt!</span>(<span class="self">self</span>.seconds.checked_add(rhs.seconds)); |
| <span class="kw">let </span><span class="kw-2">mut </span>nanoseconds = <span class="self">self</span>.nanoseconds + rhs.nanoseconds; |
| |
| <span class="kw">if </span>nanoseconds >= Nanosecond.per(Second) <span class="kw">as _ </span>|| seconds < <span class="number">0 </span>&& nanoseconds > <span class="number">0 </span>{ |
| nanoseconds -= Nanosecond.per(Second) <span class="kw">as </span>i32; |
| seconds = <span class="macro">const_try_opt!</span>(seconds.checked_add(<span class="number">1</span>)); |
| } <span class="kw">else if </span>nanoseconds <= -(Nanosecond.per(Second) <span class="kw">as </span>i32) || seconds > <span class="number">0 </span>&& nanoseconds < <span class="number">0 |
| </span>{ |
| nanoseconds += Nanosecond.per(Second) <span class="kw">as </span>i32; |
| seconds = <span class="macro">const_try_opt!</span>(seconds.checked_sub(<span class="number">1</span>)); |
| } |
| |
| <span class="prelude-val">Some</span>(<span class="self">Self</span>::new_unchecked(seconds, nanoseconds)) |
| } |
| |
| <span class="doccomment">/// Computes `self - rhs`, returning `None` if an overflow occurred. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(5.seconds().checked_sub(5.seconds()), Some(Duration::ZERO)); |
| /// assert_eq!(Duration::MIN.checked_sub(1.nanoseconds()), None); |
| /// assert_eq!(5.seconds().checked_sub(10.seconds()), Some((-5).seconds())); |
| /// ``` |
| </span><span class="kw">pub const fn </span>checked_sub(<span class="self">self</span>, rhs: <span class="self">Self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>seconds = <span class="macro">const_try_opt!</span>(<span class="self">self</span>.seconds.checked_sub(rhs.seconds)); |
| <span class="kw">let </span><span class="kw-2">mut </span>nanoseconds = <span class="self">self</span>.nanoseconds - rhs.nanoseconds; |
| |
| <span class="kw">if </span>nanoseconds >= Nanosecond.per(Second) <span class="kw">as _ </span>|| seconds < <span class="number">0 </span>&& nanoseconds > <span class="number">0 </span>{ |
| nanoseconds -= Nanosecond.per(Second) <span class="kw">as </span>i32; |
| seconds = <span class="macro">const_try_opt!</span>(seconds.checked_add(<span class="number">1</span>)); |
| } <span class="kw">else if </span>nanoseconds <= -(Nanosecond.per(Second) <span class="kw">as </span>i32) || seconds > <span class="number">0 </span>&& nanoseconds < <span class="number">0 |
| </span>{ |
| nanoseconds += Nanosecond.per(Second) <span class="kw">as </span>i32; |
| seconds = <span class="macro">const_try_opt!</span>(seconds.checked_sub(<span class="number">1</span>)); |
| } |
| |
| <span class="prelude-val">Some</span>(<span class="self">Self</span>::new_unchecked(seconds, nanoseconds)) |
| } |
| |
| <span class="doccomment">/// Computes `self * rhs`, returning `None` if an overflow occurred. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(5.seconds().checked_mul(2), Some(10.seconds())); |
| /// assert_eq!(5.seconds().checked_mul(-2), Some((-10).seconds())); |
| /// assert_eq!(5.seconds().checked_mul(0), Some(0.seconds())); |
| /// assert_eq!(Duration::MAX.checked_mul(2), None); |
| /// assert_eq!(Duration::MIN.checked_mul(2), None); |
| /// ``` |
| </span><span class="kw">pub const fn </span>checked_mul(<span class="self">self</span>, rhs: i32) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="comment">// Multiply nanoseconds as i64, because it cannot overflow that way. |
| </span><span class="kw">let </span>total_nanos = <span class="self">self</span>.nanoseconds <span class="kw">as </span>i64 * rhs <span class="kw">as </span>i64; |
| <span class="kw">let </span>extra_secs = total_nanos / Nanosecond.per(Second) <span class="kw">as </span>i64; |
| <span class="kw">let </span>nanoseconds = (total_nanos % Nanosecond.per(Second) <span class="kw">as </span>i64) <span class="kw">as _</span>; |
| <span class="kw">let </span>seconds = <span class="macro">const_try_opt!</span>( |
| <span class="macro">const_try_opt!</span>(<span class="self">self</span>.seconds.checked_mul(rhs <span class="kw">as _</span>)).checked_add(extra_secs) |
| ); |
| |
| <span class="prelude-val">Some</span>(<span class="self">Self</span>::new_unchecked(seconds, nanoseconds)) |
| } |
| |
| <span class="doccomment">/// Computes `self / rhs`, returning `None` if `rhs == 0` or if the result would overflow. |
| /// |
| /// ```rust |
| /// # use time::ext::NumericalDuration; |
| /// assert_eq!(10.seconds().checked_div(2), Some(5.seconds())); |
| /// assert_eq!(10.seconds().checked_div(-2), Some((-5).seconds())); |
| /// assert_eq!(1.seconds().checked_div(0), None); |
| /// ``` |
| </span><span class="kw">pub const fn </span>checked_div(<span class="self">self</span>, rhs: i32) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="kw">let </span>seconds = <span class="macro">const_try_opt!</span>(<span class="self">self</span>.seconds.checked_div(rhs <span class="kw">as </span>i64)); |
| <span class="kw">let </span>carry = <span class="self">self</span>.seconds - seconds * (rhs <span class="kw">as </span>i64); |
| <span class="kw">let </span>extra_nanos = |
| <span class="macro">const_try_opt!</span>((carry * Nanosecond.per(Second) <span class="kw">as </span>i64).checked_div(rhs <span class="kw">as </span>i64)); |
| <span class="kw">let </span>nanoseconds = <span class="macro">const_try_opt!</span>(<span class="self">self</span>.nanoseconds.checked_div(rhs)) + (extra_nanos <span class="kw">as </span>i32); |
| |
| <span class="prelude-val">Some</span>(<span class="self">Self</span>::new_unchecked(seconds, nanoseconds)) |
| } |
| <span class="comment">// endregion checked arithmetic |
| |
| // region: saturating arithmetic |
| </span><span class="doccomment">/// Computes `self + rhs`, saturating if an overflow occurred. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(5.seconds().saturating_add(5.seconds()), 10.seconds()); |
| /// assert_eq!(Duration::MAX.saturating_add(1.nanoseconds()), Duration::MAX); |
| /// assert_eq!( |
| /// Duration::MIN.saturating_add((-1).nanoseconds()), |
| /// Duration::MIN |
| /// ); |
| /// assert_eq!((-5).seconds().saturating_add(5.seconds()), Duration::ZERO); |
| /// ``` |
| </span><span class="kw">pub const fn </span>saturating_add(<span class="self">self</span>, rhs: <span class="self">Self</span>) -> <span class="self">Self </span>{ |
| <span class="kw">let </span>(<span class="kw-2">mut </span>seconds, overflow) = <span class="self">self</span>.seconds.overflowing_add(rhs.seconds); |
| <span class="kw">if </span>overflow { |
| <span class="kw">if </span><span class="self">self</span>.seconds > <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="self">Self</span>::MAX; |
| } |
| <span class="kw">return </span><span class="self">Self</span>::MIN; |
| } |
| <span class="kw">let </span><span class="kw-2">mut </span>nanoseconds = <span class="self">self</span>.nanoseconds + rhs.nanoseconds; |
| |
| <span class="kw">if </span>nanoseconds >= Nanosecond.per(Second) <span class="kw">as _ </span>|| seconds < <span class="number">0 </span>&& nanoseconds > <span class="number">0 </span>{ |
| nanoseconds -= Nanosecond.per(Second) <span class="kw">as </span>i32; |
| seconds = <span class="kw">match </span>seconds.checked_add(<span class="number">1</span>) { |
| <span class="prelude-val">Some</span>(seconds) => seconds, |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="self">Self</span>::MAX, |
| }; |
| } <span class="kw">else if </span>nanoseconds <= -(Nanosecond.per(Second) <span class="kw">as </span>i32) || seconds > <span class="number">0 </span>&& nanoseconds < <span class="number">0 |
| </span>{ |
| nanoseconds += Nanosecond.per(Second) <span class="kw">as </span>i32; |
| seconds = <span class="kw">match </span>seconds.checked_sub(<span class="number">1</span>) { |
| <span class="prelude-val">Some</span>(seconds) => seconds, |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="self">Self</span>::MIN, |
| }; |
| } |
| |
| <span class="self">Self</span>::new_unchecked(seconds, nanoseconds) |
| } |
| |
| <span class="doccomment">/// Computes `self - rhs`, saturating if an overflow occurred. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(5.seconds().saturating_sub(5.seconds()), Duration::ZERO); |
| /// assert_eq!(Duration::MIN.saturating_sub(1.nanoseconds()), Duration::MIN); |
| /// assert_eq!( |
| /// Duration::MAX.saturating_sub((-1).nanoseconds()), |
| /// Duration::MAX |
| /// ); |
| /// assert_eq!(5.seconds().saturating_sub(10.seconds()), (-5).seconds()); |
| /// ``` |
| </span><span class="kw">pub const fn </span>saturating_sub(<span class="self">self</span>, rhs: <span class="self">Self</span>) -> <span class="self">Self </span>{ |
| <span class="kw">let </span>(<span class="kw-2">mut </span>seconds, overflow) = <span class="self">self</span>.seconds.overflowing_sub(rhs.seconds); |
| <span class="kw">if </span>overflow { |
| <span class="kw">if </span><span class="self">self</span>.seconds > <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="self">Self</span>::MAX; |
| } |
| <span class="kw">return </span><span class="self">Self</span>::MIN; |
| } |
| <span class="kw">let </span><span class="kw-2">mut </span>nanoseconds = <span class="self">self</span>.nanoseconds - rhs.nanoseconds; |
| |
| <span class="kw">if </span>nanoseconds >= Nanosecond.per(Second) <span class="kw">as _ </span>|| seconds < <span class="number">0 </span>&& nanoseconds > <span class="number">0 </span>{ |
| nanoseconds -= Nanosecond.per(Second) <span class="kw">as </span>i32; |
| seconds = <span class="kw">match </span>seconds.checked_add(<span class="number">1</span>) { |
| <span class="prelude-val">Some</span>(seconds) => seconds, |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="self">Self</span>::MAX, |
| }; |
| } <span class="kw">else if </span>nanoseconds <= -(Nanosecond.per(Second) <span class="kw">as </span>i32) || seconds > <span class="number">0 </span>&& nanoseconds < <span class="number">0 |
| </span>{ |
| nanoseconds += Nanosecond.per(Second) <span class="kw">as </span>i32; |
| seconds = <span class="kw">match </span>seconds.checked_sub(<span class="number">1</span>) { |
| <span class="prelude-val">Some</span>(seconds) => seconds, |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="self">Self</span>::MIN, |
| }; |
| } |
| |
| <span class="self">Self</span>::new_unchecked(seconds, nanoseconds) |
| } |
| |
| <span class="doccomment">/// Computes `self * rhs`, saturating if an overflow occurred. |
| /// |
| /// ```rust |
| /// # use time::{Duration, ext::NumericalDuration}; |
| /// assert_eq!(5.seconds().saturating_mul(2), 10.seconds()); |
| /// assert_eq!(5.seconds().saturating_mul(-2), (-10).seconds()); |
| /// assert_eq!(5.seconds().saturating_mul(0), Duration::ZERO); |
| /// assert_eq!(Duration::MAX.saturating_mul(2), Duration::MAX); |
| /// assert_eq!(Duration::MIN.saturating_mul(2), Duration::MIN); |
| /// assert_eq!(Duration::MAX.saturating_mul(-2), Duration::MIN); |
| /// assert_eq!(Duration::MIN.saturating_mul(-2), Duration::MAX); |
| /// ``` |
| </span><span class="kw">pub const fn </span>saturating_mul(<span class="self">self</span>, rhs: i32) -> <span class="self">Self </span>{ |
| <span class="comment">// Multiply nanoseconds as i64, because it cannot overflow that way. |
| </span><span class="kw">let </span>total_nanos = <span class="self">self</span>.nanoseconds <span class="kw">as </span>i64 * rhs <span class="kw">as </span>i64; |
| <span class="kw">let </span>extra_secs = total_nanos / Nanosecond.per(Second) <span class="kw">as </span>i64; |
| <span class="kw">let </span>nanoseconds = (total_nanos % Nanosecond.per(Second) <span class="kw">as </span>i64) <span class="kw">as _</span>; |
| <span class="kw">let </span>(seconds, overflow1) = <span class="self">self</span>.seconds.overflowing_mul(rhs <span class="kw">as _</span>); |
| <span class="kw">if </span>overflow1 { |
| <span class="kw">if </span><span class="self">self</span>.seconds > <span class="number">0 </span>&& rhs > <span class="number">0 </span>|| <span class="self">self</span>.seconds < <span class="number">0 </span>&& rhs < <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="self">Self</span>::MAX; |
| } |
| <span class="kw">return </span><span class="self">Self</span>::MIN; |
| } |
| <span class="kw">let </span>(seconds, overflow2) = seconds.overflowing_add(extra_secs); |
| <span class="kw">if </span>overflow2 { |
| <span class="kw">if </span><span class="self">self</span>.seconds > <span class="number">0 </span>&& rhs > <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="self">Self</span>::MAX; |
| } |
| <span class="kw">return </span><span class="self">Self</span>::MIN; |
| } |
| |
| <span class="self">Self</span>::new_unchecked(seconds, nanoseconds) |
| } |
| <span class="comment">// endregion saturating arithmetic |
| |
| </span><span class="doccomment">/// Runs a closure, returning the duration of time it took to run. The return value of the |
| /// closure is provided in the second part of the tuple. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">pub fn </span>time_fn<T>(f: <span class="kw">impl </span>FnOnce() -> T) -> (<span class="self">Self</span>, T) { |
| <span class="kw">let </span>start = Instant::now(); |
| <span class="kw">let </span>return_value = f(); |
| <span class="kw">let </span>end = Instant::now(); |
| |
| (end - start, return_value) |
| } |
| } |
| |
| <span class="comment">// region: trait impls |
| </span><span class="doccomment">/// The format returned by this implementation is not stable and must not be relied upon. |
| /// |
| /// By default this produces an exact, full-precision printout of the duration. |
| /// For a concise, rounded printout instead, you can use the `.N` format specifier: |
| /// |
| /// ``` |
| /// # use time::Duration; |
| /// # |
| /// let duration = Duration::new(123456, 789011223); |
| /// println!("{duration:.3}"); |
| /// ``` |
| /// |
| /// For the purposes of this implementation, a day is exactly 24 hours and a minute is exactly 60 |
| /// seconds. |
| </span><span class="kw">impl </span>fmt::Display <span class="kw">for </span>Duration { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="kw">if </span><span class="self">self</span>.is_negative() { |
| f.write_str(<span class="string">"-"</span>)<span class="question-mark">?</span>; |
| } |
| |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(_precision) = f.precision() { |
| <span class="comment">// Concise, rounded representation. |
| |
| </span><span class="kw">if </span><span class="self">self</span>.is_zero() { |
| <span class="comment">// Write a zero value with the requested precision. |
| </span><span class="kw">return </span>(<span class="number">0.</span>).fmt(f).and_then(|<span class="kw">_</span>| f.write_str(<span class="string">"s"</span>)); |
| } |
| |
| <span class="doccomment">/// Format the first item that produces a value greater than 1 and then break. |
| </span><span class="macro">macro_rules! </span>item { |
| (<span class="macro-nonterminal">$name</span>:literal, <span class="macro-nonterminal">$value</span>:expr) => { |
| <span class="kw">let </span>value = <span class="macro-nonterminal">$value</span>; |
| <span class="kw">if </span>value >= <span class="number">1.0 </span>{ |
| <span class="kw">return </span>value.fmt(f).and_then(|<span class="kw">_</span>| f.write_str(<span class="macro-nonterminal">$name</span>)); |
| } |
| }; |
| } |
| |
| <span class="comment">// Even if this produces a de-normal float, because we're rounding we don't really care. |
| </span><span class="kw">let </span>seconds = <span class="self">self</span>.unsigned_abs().as_secs_f64(); |
| |
| <span class="macro">item!</span>(<span class="string">"d"</span>, seconds / Second.per(Day) <span class="kw">as </span>f64); |
| <span class="macro">item!</span>(<span class="string">"h"</span>, seconds / Second.per(Hour) <span class="kw">as </span>f64); |
| <span class="macro">item!</span>(<span class="string">"m"</span>, seconds / Second.per(Minute) <span class="kw">as </span>f64); |
| <span class="macro">item!</span>(<span class="string">"s"</span>, seconds); |
| <span class="macro">item!</span>(<span class="string">"ms"</span>, seconds * Millisecond.per(Second) <span class="kw">as </span>f64); |
| <span class="macro">item!</span>(<span class="string">"µs"</span>, seconds * Microsecond.per(Second) <span class="kw">as </span>f64); |
| <span class="macro">item!</span>(<span class="string">"ns"</span>, seconds * Nanosecond.per(Second) <span class="kw">as </span>f64); |
| } <span class="kw">else </span>{ |
| <span class="comment">// Precise, but verbose representation. |
| |
| </span><span class="kw">if </span><span class="self">self</span>.is_zero() { |
| <span class="kw">return </span>f.write_str(<span class="string">"0s"</span>); |
| } |
| |
| <span class="doccomment">/// Format a single item. |
| </span><span class="macro">macro_rules! </span>item { |
| (<span class="macro-nonterminal">$name</span>:literal, <span class="macro-nonterminal">$value</span>:expr) => { |
| <span class="kw">match </span><span class="macro-nonterminal">$value </span>{ |
| <span class="number">0 </span>=> <span class="prelude-val">Ok</span>(()), |
| value => value.fmt(f).and_then(|<span class="kw">_</span>| f.write_str(<span class="macro-nonterminal">$name</span>)), |
| } |
| }; |
| } |
| |
| <span class="kw">let </span>seconds = <span class="self">self</span>.seconds.unsigned_abs(); |
| <span class="kw">let </span>nanoseconds = <span class="self">self</span>.nanoseconds.unsigned_abs(); |
| |
| <span class="macro">item!</span>(<span class="string">"d"</span>, seconds / Second.per(Day) <span class="kw">as </span>u64)<span class="question-mark">?</span>; |
| <span class="macro">item!</span>( |
| <span class="string">"h"</span>, |
| seconds / Second.per(Hour) <span class="kw">as </span>u64 % Hour.per(Day) <span class="kw">as </span>u64 |
| )<span class="question-mark">?</span>; |
| <span class="macro">item!</span>( |
| <span class="string">"m"</span>, |
| seconds / Second.per(Minute) <span class="kw">as </span>u64 % Minute.per(Hour) <span class="kw">as </span>u64 |
| )<span class="question-mark">?</span>; |
| <span class="macro">item!</span>(<span class="string">"s"</span>, seconds % Second.per(Minute) <span class="kw">as </span>u64)<span class="question-mark">?</span>; |
| <span class="macro">item!</span>(<span class="string">"ms"</span>, nanoseconds / Nanosecond.per(Millisecond))<span class="question-mark">?</span>; |
| <span class="macro">item!</span>( |
| <span class="string">"µs"</span>, |
| nanoseconds / Nanosecond.per(Microsecond) <span class="kw">as </span>u32 |
| % Microsecond.per(Millisecond) <span class="kw">as </span>u32 |
| )<span class="question-mark">?</span>; |
| <span class="macro">item!</span>(<span class="string">"ns"</span>, nanoseconds % Nanosecond.per(Microsecond) <span class="kw">as </span>u32)<span class="question-mark">?</span>; |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">impl </span>TryFrom<StdDuration> <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Error = error::ConversionRange; |
| |
| <span class="kw">fn </span>try_from(original: StdDuration) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ConversionRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self</span>::new( |
| original |
| .as_secs() |
| .try_into() |
| .map_err(|<span class="kw">_</span>| error::ConversionRange)<span class="question-mark">?</span>, |
| original.subsec_nanos() <span class="kw">as _</span>, |
| )) |
| } |
| } |
| |
| <span class="kw">impl </span>TryFrom<Duration> <span class="kw">for </span>StdDuration { |
| <span class="kw">type </span>Error = error::ConversionRange; |
| |
| <span class="kw">fn </span>try_from(duration: Duration) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ConversionRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self</span>::new( |
| duration |
| .seconds |
| .try_into() |
| .map_err(|<span class="kw">_</span>| error::ConversionRange)<span class="question-mark">?</span>, |
| duration |
| .nanoseconds |
| .try_into() |
| .map_err(|<span class="kw">_</span>| error::ConversionRange)<span class="question-mark">?</span>, |
| )) |
| } |
| } |
| |
| <span class="kw">impl </span>Add <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>add(<span class="self">self</span>, rhs: <span class="self">Self</span>) -> <span class="self">Self</span>::Output { |
| <span class="self">self</span>.checked_add(rhs) |
| .expect(<span class="string">"overflow when adding durations"</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>Add<StdDuration> <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>add(<span class="self">self</span>, std_duration: StdDuration) -> <span class="self">Self</span>::Output { |
| <span class="self">self </span>+ <span class="self">Self</span>::try_from(std_duration) |
| .expect(<span class="string">"overflow converting `std::time::Duration` to `time::Duration`"</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>Add<Duration> <span class="kw">for </span>StdDuration { |
| <span class="kw">type </span>Output = Duration; |
| |
| <span class="kw">fn </span>add(<span class="self">self</span>, rhs: Duration) -> <span class="self">Self</span>::Output { |
| rhs + <span class="self">self |
| </span>} |
| } |
| |
| <span class="macro">impl_add_assign!</span>(Duration: <span class="self">Self</span>, StdDuration); |
| |
| <span class="kw">impl </span>AddAssign<Duration> <span class="kw">for </span>StdDuration { |
| <span class="kw">fn </span>add_assign(<span class="kw-2">&mut </span><span class="self">self</span>, rhs: Duration) { |
| <span class="kw-2">*</span><span class="self">self </span>= (<span class="kw-2">*</span><span class="self">self </span>+ rhs).try_into().expect( |
| <span class="string">"Cannot represent a resulting duration in std. Try `let x = x + rhs;`, which will \ |
| change the type."</span>, |
| ); |
| } |
| } |
| |
| <span class="kw">impl </span>Neg <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>neg(<span class="self">self</span>) -> <span class="self">Self</span>::Output { |
| <span class="self">Self</span>::new_unchecked(-<span class="self">self</span>.seconds, -<span class="self">self</span>.nanoseconds) |
| } |
| } |
| |
| <span class="kw">impl </span>Sub <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>sub(<span class="self">self</span>, rhs: <span class="self">Self</span>) -> <span class="self">Self</span>::Output { |
| <span class="self">self</span>.checked_sub(rhs) |
| .expect(<span class="string">"overflow when subtracting durations"</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>Sub<StdDuration> <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>sub(<span class="self">self</span>, rhs: StdDuration) -> <span class="self">Self</span>::Output { |
| <span class="self">self </span>- <span class="self">Self</span>::try_from(rhs) |
| .expect(<span class="string">"overflow converting `std::time::Duration` to `time::Duration`"</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>Sub<Duration> <span class="kw">for </span>StdDuration { |
| <span class="kw">type </span>Output = Duration; |
| |
| <span class="kw">fn </span>sub(<span class="self">self</span>, rhs: Duration) -> <span class="self">Self</span>::Output { |
| Duration::try_from(<span class="self">self</span>) |
| .expect(<span class="string">"overflow converting `std::time::Duration` to `time::Duration`"</span>) |
| - rhs |
| } |
| } |
| |
| <span class="macro">impl_sub_assign!</span>(Duration: <span class="self">Self</span>, StdDuration); |
| |
| <span class="kw">impl </span>SubAssign<Duration> <span class="kw">for </span>StdDuration { |
| <span class="kw">fn </span>sub_assign(<span class="kw-2">&mut </span><span class="self">self</span>, rhs: Duration) { |
| <span class="kw-2">*</span><span class="self">self </span>= (<span class="kw-2">*</span><span class="self">self </span>- rhs).try_into().expect( |
| <span class="string">"Cannot represent a resulting duration in std. Try `let x = x - rhs;`, which will \ |
| change the type."</span>, |
| ); |
| } |
| } |
| |
| <span class="doccomment">/// Implement `Mul` (reflexively) and `Div` for `Duration` for various types. |
| </span><span class="macro">macro_rules! </span>duration_mul_div_int { |
| ($(<span class="macro-nonterminal">$</span><span class="kw">type</span>:<span class="macro-nonterminal">ty</span>),+) => {$( |
| <span class="kw">impl </span>Mul<<span class="macro-nonterminal">$</span><span class="kw">type</span>> <span class="kw">for </span><span class="macro-nonterminal">Duration </span>{ |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, rhs: <span class="macro-nonterminal">$</span><span class="kw">type</span>) -> <span class="macro-nonterminal">Self::Output </span>{ |
| <span class="self">Self</span>::nanoseconds_i128( |
| <span class="self">self</span>.whole_nanoseconds() |
| .checked_mul(rhs <span class="kw">as _</span>) |
| .expect(<span class="string">"overflow when multiplying duration"</span>) |
| ) |
| } |
| } |
| |
| <span class="kw">impl </span>Mul<Duration> <span class="kw">for </span><span class="macro-nonterminal">$</span><span class="kw">type </span>{ |
| <span class="kw">type </span><span class="macro-nonterminal">Output </span>= Duration; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, rhs: Duration) -> <span class="self">Self</span>::Output { |
| rhs * <span class="self">self |
| </span>} |
| } |
| |
| <span class="kw">impl </span>Div<<span class="macro-nonterminal">$</span><span class="kw">type</span>> <span class="kw">for </span><span class="macro-nonterminal">Duration </span>{ |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>div(<span class="self">self</span>, rhs: <span class="macro-nonterminal">$</span><span class="kw">type</span>) -> <span class="macro-nonterminal">Self::Output </span>{ |
| <span class="self">Self</span>::nanoseconds_i128(<span class="self">self</span>.whole_nanoseconds() / rhs <span class="kw">as </span>i128) |
| } |
| } |
| )+}; |
| } |
| <span class="macro">duration_mul_div_int!</span>[i8, i16, i32, u8, u16, u32]; |
| |
| <span class="kw">impl </span>Mul<f32> <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, rhs: f32) -> <span class="self">Self</span>::Output { |
| <span class="self">Self</span>::seconds_f32(<span class="self">self</span>.as_seconds_f32() * rhs) |
| } |
| } |
| |
| <span class="kw">impl </span>Mul<Duration> <span class="kw">for </span>f32 { |
| <span class="kw">type </span>Output = Duration; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, rhs: Duration) -> <span class="self">Self</span>::Output { |
| rhs * <span class="self">self |
| </span>} |
| } |
| |
| <span class="kw">impl </span>Mul<f64> <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, rhs: f64) -> <span class="self">Self</span>::Output { |
| <span class="self">Self</span>::seconds_f64(<span class="self">self</span>.as_seconds_f64() * rhs) |
| } |
| } |
| |
| <span class="kw">impl </span>Mul<Duration> <span class="kw">for </span>f64 { |
| <span class="kw">type </span>Output = Duration; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, rhs: Duration) -> <span class="self">Self</span>::Output { |
| rhs * <span class="self">self |
| </span>} |
| } |
| |
| <span class="macro">impl_mul_assign!</span>(Duration: i8, i16, i32, u8, u16, u32, f32, f64); |
| |
| <span class="kw">impl </span>Div<f32> <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>div(<span class="self">self</span>, rhs: f32) -> <span class="self">Self</span>::Output { |
| <span class="self">Self</span>::seconds_f32(<span class="self">self</span>.as_seconds_f32() / rhs) |
| } |
| } |
| |
| <span class="kw">impl </span>Div<f64> <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>div(<span class="self">self</span>, rhs: f64) -> <span class="self">Self</span>::Output { |
| <span class="self">Self</span>::seconds_f64(<span class="self">self</span>.as_seconds_f64() / rhs) |
| } |
| } |
| |
| <span class="macro">impl_div_assign!</span>(Duration: i8, i16, i32, u8, u16, u32, f32, f64); |
| |
| <span class="kw">impl </span>Div <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = f64; |
| |
| <span class="kw">fn </span>div(<span class="self">self</span>, rhs: <span class="self">Self</span>) -> <span class="self">Self</span>::Output { |
| <span class="self">self</span>.as_seconds_f64() / rhs.as_seconds_f64() |
| } |
| } |
| |
| <span class="kw">impl </span>Div<StdDuration> <span class="kw">for </span>Duration { |
| <span class="kw">type </span>Output = f64; |
| |
| <span class="kw">fn </span>div(<span class="self">self</span>, rhs: StdDuration) -> <span class="self">Self</span>::Output { |
| <span class="self">self</span>.as_seconds_f64() / rhs.as_secs_f64() |
| } |
| } |
| |
| <span class="kw">impl </span>Div<Duration> <span class="kw">for </span>StdDuration { |
| <span class="kw">type </span>Output = f64; |
| |
| <span class="kw">fn </span>div(<span class="self">self</span>, rhs: Duration) -> <span class="self">Self</span>::Output { |
| <span class="self">self</span>.as_secs_f64() / rhs.as_seconds_f64() |
| } |
| } |
| |
| <span class="kw">impl </span>PartialEq<StdDuration> <span class="kw">for </span>Duration { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span>StdDuration) -> bool { |
| <span class="prelude-val">Ok</span>(<span class="kw-2">*</span><span class="self">self</span>) == <span class="self">Self</span>::try_from(<span class="kw-2">*</span>rhs) |
| } |
| } |
| |
| <span class="kw">impl </span>PartialEq<Duration> <span class="kw">for </span>StdDuration { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span>Duration) -> bool { |
| rhs == <span class="self">self |
| </span>} |
| } |
| |
| <span class="kw">impl </span>PartialOrd<StdDuration> <span class="kw">for </span>Duration { |
| <span class="kw">fn </span>partial_cmp(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span>StdDuration) -> <span class="prelude-ty">Option</span><Ordering> { |
| <span class="kw">if </span>rhs.as_secs() > i64::MAX <span class="kw">as _ </span>{ |
| <span class="kw">return </span><span class="prelude-val">Some</span>(Ordering::Less); |
| } |
| |
| <span class="prelude-val">Some</span>( |
| <span class="self">self</span>.seconds |
| .cmp(<span class="kw-2">&</span>(rhs.as_secs() <span class="kw">as _</span>)) |
| .then_with(|| <span class="self">self</span>.nanoseconds.cmp(<span class="kw-2">&</span>(rhs.subsec_nanos() <span class="kw">as _</span>))), |
| ) |
| } |
| } |
| |
| <span class="kw">impl </span>PartialOrd<Duration> <span class="kw">for </span>StdDuration { |
| <span class="kw">fn </span>partial_cmp(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span>Duration) -> <span class="prelude-ty">Option</span><Ordering> { |
| rhs.partial_cmp(<span class="self">self</span>).map(Ordering::reverse) |
| } |
| } |
| |
| <span class="kw">impl </span>Sum <span class="kw">for </span>Duration { |
| <span class="kw">fn </span>sum<I: Iterator<Item = <span class="self">Self</span>>>(iter: I) -> <span class="self">Self </span>{ |
| iter.reduce(|a, b| a + b).unwrap_or_default() |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> Sum<<span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">Self</span>> <span class="kw">for </span>Duration { |
| <span class="kw">fn </span>sum<I: Iterator<Item = <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">Self</span>>>(iter: I) -> <span class="self">Self </span>{ |
| iter.copied().sum() |
| } |
| } |
| <span class="comment">// endregion trait impls |
| </span></code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="time" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
