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| </pre><pre class="rust"><code><span class="doccomment">//! The [`DateTime`] struct and its associated `impl`s. |
| |
| </span><span class="comment">// TODO(jhpratt) Document everything before making public. |
| </span><span class="attribute">#![allow(clippy::missing_docs_in_private_items)] |
| </span><span class="comment">// This is intentional, as the struct will likely be exposed at some point. |
| </span><span class="attribute">#![allow(unreachable_pub)] |
| |
| </span><span class="kw">use </span>core::cmp::Ordering; |
| <span class="kw">use </span>core::fmt; |
| <span class="kw">use </span>core::hash::{Hash, Hasher}; |
| <span class="kw">use </span>core::mem::size_of; |
| <span class="kw">use </span>core::ops::{Add, AddAssign, Sub, SubAssign}; |
| <span class="kw">use </span>core::time::Duration <span class="kw">as </span>StdDuration; |
| <span class="attribute">#[cfg(feature = <span class="string">"formatting"</span>)] |
| </span><span class="kw">use </span>std::io; |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">use </span>std::time::SystemTime; |
| |
| <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>::date::{MAX_YEAR, MIN_YEAR}; |
| <span class="attribute">#[cfg(feature = <span class="string">"formatting"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::formatting::Formattable; |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::parsing::{Parsable, Parsed}; |
| <span class="kw">use crate</span>::{error, util, Date, Duration, Month, Time, UtcOffset, Weekday}; |
| |
| <span class="attribute">#[allow(missing_debug_implementations, missing_copy_implementations)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>offset_kind { |
| <span class="kw">pub enum </span><span class="prelude-val">None </span>{} |
| <span class="kw">pub enum </span>Fixed {} |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>sealed::MaybeOffset; |
| <span class="kw">use </span>sealed::<span class="kw-2">*</span>; |
| <span class="kw">mod </span>sealed { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="doccomment">/// A type that is guaranteed to be either `()` or [`UtcOffset`]. |
| /// |
| /// **Do not** add any additional implementations of this trait. |
| </span><span class="attribute">#[allow(unreachable_pub)] </span><span class="comment">// intentional |
| </span><span class="kw">pub trait </span>MaybeOffsetType {} |
| <span class="kw">impl </span>MaybeOffsetType <span class="kw">for </span>() {} |
| <span class="kw">impl </span>MaybeOffsetType <span class="kw">for </span>UtcOffset {} |
| |
| <span class="kw">pub trait </span>MaybeOffset: Sized { |
| <span class="doccomment">/// The offset type as it is stored in memory. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"quickcheck"</span>)] |
| </span><span class="kw">type </span>MemoryOffsetType: Copy + MaybeOffsetType + quickcheck::Arbitrary; |
| <span class="attribute">#[cfg(not(feature = <span class="string">"quickcheck"</span>))] |
| </span><span class="kw">type </span>MemoryOffsetType: Copy + MaybeOffsetType; |
| |
| <span class="doccomment">/// The offset type as it should be thought about. |
| /// |
| /// For example, a `DateTime<Utc>` has a logical offset type of [`UtcOffset`], but does not |
| /// actually store an offset in memory. |
| </span><span class="kw">type </span>LogicalOffsetType: Copy + MaybeOffsetType; |
| |
| <span class="doccomment">/// Required to be `Self`. Used for bound equality. |
| </span><span class="kw">type </span>Self_; |
| |
| <span class="doccomment">/// True if and only if `Self::LogicalOffsetType` is `UtcOffset`. |
| </span><span class="kw">const </span>HAS_LOGICAL_OFFSET: bool = |
| size_of::<<span class="self">Self</span>::LogicalOffsetType>() == size_of::<UtcOffset>(); |
| <span class="doccomment">/// True if and only if `Self::MemoryOffsetType` is `UtcOffset`. |
| </span><span class="kw">const </span>HAS_MEMORY_OFFSET: bool = |
| size_of::<<span class="self">Self</span>::MemoryOffsetType>() == size_of::<UtcOffset>(); |
| |
| <span class="doccomment">/// `Some` if and only if the logical UTC offset is statically known. |
| </span><span class="comment">// TODO(jhpratt) When const trait impls are stable, this can be removed in favor of |
| // `.as_offset_opt()`. |
| </span><span class="kw">const </span>STATIC_OFFSET: <span class="prelude-ty">Option</span><UtcOffset>; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">fn </span>try_from_parsed(parsed: Parsed) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::MemoryOffsetType, error::TryFromParsed>; |
| } |
| |
| <span class="comment">// Traits to indicate whether a `MaybeOffset` has a logical offset type of `UtcOffset` or not. |
| |
| </span><span class="kw">pub trait </span>HasLogicalOffset: MaybeOffset<LogicalOffsetType = UtcOffset> {} |
| <span class="kw">impl</span><T: MaybeOffset<LogicalOffsetType = UtcOffset>> HasLogicalOffset <span class="kw">for </span>T {} |
| |
| <span class="kw">pub trait </span>NoLogicalOffset: MaybeOffset<LogicalOffsetType = ()> {} |
| <span class="kw">impl</span><T: MaybeOffset<LogicalOffsetType = ()>> NoLogicalOffset <span class="kw">for </span>T {} |
| |
| <span class="comment">// Traits to indicate whether a `MaybeOffset` has a memory offset type of `UtcOffset` or not. |
| |
| </span><span class="kw">pub trait </span>HasMemoryOffset: MaybeOffset<MemoryOffsetType = UtcOffset> {} |
| <span class="kw">impl</span><T: MaybeOffset<MemoryOffsetType = UtcOffset>> HasMemoryOffset <span class="kw">for </span>T {} |
| |
| <span class="kw">pub trait </span>NoMemoryOffset: MaybeOffset<MemoryOffsetType = ()> {} |
| <span class="kw">impl</span><T: MaybeOffset<MemoryOffsetType = ()>> NoMemoryOffset <span class="kw">for </span>T {} |
| |
| <span class="comment">// Traits to indicate backing type being implemented. |
| |
| </span><span class="kw">pub trait </span>IsOffsetKindNone: |
| MaybeOffset<Self_ = offset_kind::None, MemoryOffsetType = (), LogicalOffsetType = ()> |
| { |
| } |
| <span class="kw">impl </span>IsOffsetKindNone <span class="kw">for </span>offset_kind::None {} |
| |
| <span class="kw">pub trait </span>IsOffsetKindFixed: |
| MaybeOffset< |
| Self_ = offset_kind::Fixed, |
| MemoryOffsetType = UtcOffset, |
| LogicalOffsetType = UtcOffset, |
| > |
| { |
| } |
| <span class="kw">impl </span>IsOffsetKindFixed <span class="kw">for </span>offset_kind::Fixed {} |
| } |
| |
| <span class="kw">impl </span>MaybeOffset <span class="kw">for </span>offset_kind::None { |
| <span class="kw">type </span>MemoryOffsetType = (); |
| <span class="kw">type </span>LogicalOffsetType = (); |
| |
| <span class="kw">type </span>Self_ = <span class="self">Self</span>; |
| |
| <span class="kw">const </span>STATIC_OFFSET: <span class="prelude-ty">Option</span><UtcOffset> = <span class="prelude-val">None</span>; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">fn </span>try_from_parsed(<span class="kw">_</span>: Parsed) -> <span class="prelude-ty">Result</span><(), error::TryFromParsed> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">impl </span>MaybeOffset <span class="kw">for </span>offset_kind::Fixed { |
| <span class="kw">type </span>MemoryOffsetType = UtcOffset; |
| <span class="kw">type </span>LogicalOffsetType = UtcOffset; |
| |
| <span class="kw">type </span>Self_ = <span class="self">Self</span>; |
| |
| <span class="kw">const </span>STATIC_OFFSET: <span class="prelude-ty">Option</span><UtcOffset> = <span class="prelude-val">None</span>; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">fn </span>try_from_parsed(parsed: Parsed) -> <span class="prelude-ty">Result</span><UtcOffset, error::TryFromParsed> { |
| parsed.try_into() |
| } |
| } |
| |
| <span class="comment">// region: const trait method hacks |
| // TODO(jhpratt) When const trait impls are stable, these methods can be removed in favor of methods |
| // in `MaybeOffset`, which would then be made `const`. |
| </span><span class="kw">const fn </span>maybe_offset_as_offset_opt<O: MaybeOffset>( |
| offset: O::MemoryOffsetType, |
| ) -> <span class="prelude-ty">Option</span><UtcOffset> { |
| <span class="kw">if </span>O::STATIC_OFFSET.is_some() { |
| O::STATIC_OFFSET |
| } <span class="kw">else if </span>O::HAS_MEMORY_OFFSET { |
| <span class="kw">union </span>Convert<O: MaybeOffset> { |
| input: O::MemoryOffsetType, |
| output: UtcOffset, |
| } |
| |
| <span class="comment">// Safety: `O::HAS_OFFSET` indicates that `O::Offset` is `UtcOffset`. This code effectively |
| // performs a transmute from `O::Offset` to `UtcOffset`, which we know is the same type. |
| </span><span class="prelude-val">Some</span>(<span class="kw">unsafe </span>{ Convert::<O> { input: offset }.output }) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>} |
| } |
| |
| <span class="kw">const fn </span>maybe_offset_as_offset<O: MaybeOffset + HasLogicalOffset>( |
| offset: O::MemoryOffsetType, |
| ) -> UtcOffset { |
| <span class="kw">match </span>maybe_offset_as_offset_opt::<O>(offset) { |
| <span class="prelude-val">Some</span>(offset) => offset, |
| <span class="prelude-val">None </span>=> <span class="macro">bug!</span>(<span class="string">"`MaybeOffset::as_offset` called on a type without an offset in memory"</span>), |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>maybe_offset_from_offset<O: MaybeOffset>( |
| offset: UtcOffset, |
| ) -> O::MemoryOffsetType { |
| <span class="kw">union </span>Convert<O: MaybeOffset> { |
| input: UtcOffset, |
| output: O::MemoryOffsetType, |
| } |
| |
| <span class="comment">// Safety: It is statically known that there are only two possibilities due to the trait bound |
| // of `O::MemoryOffsetType`, which ultimately relies on `MaybeOffsetType`. The two possibilities |
| // are: |
| // 1. UtcOffset -> UtcOffset |
| // 2. UtcOffset -> () |
| // (1) is valid because it is an identity conversion, which is always valid. (2) is valid |
| // because `()` is a 1-ZST, so converting to it is always valid. |
| </span><span class="kw">unsafe </span>{ Convert::<O> { input: offset }.output } |
| } |
| <span class="comment">// endregion const trait methods hacks |
| |
| </span><span class="doccomment">/// The Julian day of the Unix epoch. |
| </span><span class="kw">const </span>UNIX_EPOCH_JULIAN_DAY: i32 = Date::__from_ordinal_date_unchecked(<span class="number">1970</span>, <span class="number">1</span>).to_julian_day(); |
| |
| <span class="kw">pub struct </span>DateTime<O: MaybeOffset> { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) date: Date, |
| <span class="kw">pub</span>(<span class="kw">crate</span>) time: Time, |
| <span class="kw">pub</span>(<span class="kw">crate</span>) offset: O::MemoryOffsetType, |
| } |
| |
| <span class="comment">// Manual impl to remove extraneous bounds. |
| </span><span class="kw">impl</span><O: MaybeOffset> Clone <span class="kw">for </span>DateTime<O> { |
| <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| <span class="kw-2">*</span><span class="self">self |
| </span>} |
| } |
| |
| <span class="comment">// Manual impl to remove extraneous bounds. |
| </span><span class="kw">impl</span><O: MaybeOffset> Copy <span class="kw">for </span>DateTime<O> {} |
| |
| <span class="comment">// region: constructors |
| </span><span class="kw">impl </span>DateTime<offset_kind::None> { |
| <span class="kw">pub const </span>MIN: <span class="self">Self </span>= <span class="self">Self </span>{ |
| date: Date::MIN, |
| time: Time::MIN, |
| offset: (), |
| }; |
| |
| <span class="kw">pub const </span>MAX: <span class="self">Self </span>= <span class="self">Self </span>{ |
| date: Date::MAX, |
| time: Time::MAX, |
| offset: (), |
| }; |
| } |
| |
| <span class="kw">impl </span>DateTime<offset_kind::Fixed> { |
| <span class="kw">pub const </span>UNIX_EPOCH: <span class="self">Self </span>= <span class="self">Self </span>{ |
| date: Date::__from_ordinal_date_unchecked(<span class="number">1970</span>, <span class="number">1</span>), |
| time: Time::MIDNIGHT, |
| offset: UtcOffset::UTC, |
| }; |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> DateTime<O> { |
| <span class="kw">pub const fn </span>new(date: Date, time: Time) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>O: IsOffsetKindNone, |
| { |
| <span class="self">Self </span>{ |
| date, |
| time, |
| offset: (), |
| } |
| } |
| |
| <span class="kw">pub const fn </span>from_unix_timestamp(timestamp: i64) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> |
| <span class="kw">where |
| </span>O: HasLogicalOffset, |
| { |
| <span class="attribute">#[allow(clippy::missing_docs_in_private_items)] |
| </span><span class="kw">const </span>MIN_TIMESTAMP: i64 = Date::MIN.midnight().assume_utc().unix_timestamp(); |
| <span class="attribute">#[allow(clippy::missing_docs_in_private_items)] |
| </span><span class="kw">const </span>MAX_TIMESTAMP: i64 = Date::MAX |
| .with_time(Time::__from_hms_nanos_unchecked(<span class="number">23</span>, <span class="number">59</span>, <span class="number">59</span>, <span class="number">999_999_999</span>)) |
| .assume_utc() |
| .unix_timestamp(); |
| |
| <span class="macro">ensure_value_in_range!</span>(timestamp <span class="kw">in </span>MIN_TIMESTAMP => MAX_TIMESTAMP); |
| |
| <span class="comment">// Use the unchecked method here, as the input validity has already been verified. |
| </span><span class="kw">let </span>date = Date::from_julian_day_unchecked( |
| UNIX_EPOCH_JULIAN_DAY + <span class="macro">div_floor!</span>(timestamp, Second.per(Day) <span class="kw">as </span>i64) <span class="kw">as </span>i32, |
| ); |
| |
| <span class="kw">let </span>seconds_within_day = timestamp.rem_euclid(Second.per(Day) <span class="kw">as _</span>); |
| <span class="kw">let </span>time = Time::__from_hms_nanos_unchecked( |
| (seconds_within_day / Second.per(Hour) <span class="kw">as </span>i64) <span class="kw">as _</span>, |
| ((seconds_within_day % Second.per(Hour) <span class="kw">as </span>i64) / Minute.per(Hour) <span class="kw">as </span>i64) <span class="kw">as _</span>, |
| (seconds_within_day % Second.per(Minute) <span class="kw">as </span>i64) <span class="kw">as _</span>, |
| <span class="number">0</span>, |
| ); |
| |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date, |
| time, |
| offset: maybe_offset_from_offset::<O>(UtcOffset::UTC), |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>from_unix_timestamp_nanos(timestamp: i128) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> |
| <span class="kw">where |
| </span>O: HasLogicalOffset, |
| { |
| <span class="kw">let </span>datetime = <span class="macro">const_try!</span>(<span class="self">Self</span>::from_unix_timestamp(<span class="macro">div_floor!</span>( |
| timestamp, |
| Nanosecond.per(Second) <span class="kw">as </span>i128 |
| ) <span class="kw">as </span>i64)); |
| |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: datetime.date, |
| time: Time::__from_hms_nanos_unchecked( |
| datetime.hour(), |
| datetime.minute(), |
| datetime.second(), |
| timestamp.rem_euclid(Nanosecond.per(Second) <span class="kw">as _</span>) <span class="kw">as </span>u32, |
| ), |
| offset: maybe_offset_from_offset::<O>(UtcOffset::UTC), |
| }) |
| } |
| <span class="comment">// endregion constructors |
| |
| // region: now |
| // The return type will likely be loosened once `ZonedDateTime` is implemented. This is not a |
| // breaking change calls are currently limited to only `OffsetDateTime`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">pub fn </span>now_utc() -> DateTime<offset_kind::Fixed> |
| <span class="kw">where |
| </span>O: IsOffsetKindFixed, |
| { |
| <span class="attribute">#[cfg(all( |
| target_family = <span class="string">"wasm"</span>, |
| not(any(target_os = <span class="string">"emscripten"</span>, target_os = <span class="string">"wasi"</span>)), |
| feature = <span class="string">"wasm-bindgen" |
| </span>))] |
| </span>{ |
| js_sys::Date::new_0().into() |
| } |
| |
| <span class="attribute">#[cfg(not(all( |
| target_family = <span class="string">"wasm"</span>, |
| not(any(target_os = <span class="string">"emscripten"</span>, target_os = <span class="string">"wasi"</span>)), |
| feature = <span class="string">"wasm-bindgen" |
| </span>)))] |
| </span>SystemTime::now().into() |
| } |
| |
| <span class="comment">// The return type will likely be loosened once `ZonedDateTime` is implemented. This is not a |
| // breaking change calls are currently limited to only `OffsetDateTime`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"local-offset"</span>)] |
| </span><span class="kw">pub fn </span>now_local() -> <span class="prelude-ty">Result</span><DateTime<offset_kind::Fixed>, error::IndeterminateOffset> |
| <span class="kw">where |
| </span>O: IsOffsetKindFixed, |
| { |
| <span class="kw">let </span>t = DateTime::<offset_kind::Fixed>::now_utc(); |
| <span class="prelude-val">Ok</span>(t.to_offset(UtcOffset::local_offset_at(<span class="kw">crate</span>::OffsetDateTime(t))<span class="question-mark">?</span>)) |
| } |
| <span class="comment">// endregion now |
| |
| // region: getters |
| // region: component getters |
| </span><span class="kw">pub const fn </span>date(<span class="self">self</span>) -> Date { |
| <span class="self">self</span>.date |
| } |
| |
| <span class="kw">pub const fn </span>time(<span class="self">self</span>) -> Time { |
| <span class="self">self</span>.time |
| } |
| |
| <span class="kw">pub const fn </span>offset(<span class="self">self</span>) -> UtcOffset |
| <span class="kw">where |
| </span>O: HasLogicalOffset, |
| { |
| maybe_offset_as_offset::<O>(<span class="self">self</span>.offset) |
| } |
| <span class="comment">// endregion component getters |
| |
| // region: date getters |
| </span><span class="kw">pub const fn </span>year(<span class="self">self</span>) -> i32 { |
| <span class="self">self</span>.date.year() |
| } |
| |
| <span class="kw">pub const fn </span>month(<span class="self">self</span>) -> Month { |
| <span class="self">self</span>.date.month() |
| } |
| |
| <span class="kw">pub const fn </span>day(<span class="self">self</span>) -> u8 { |
| <span class="self">self</span>.date.day() |
| } |
| |
| <span class="kw">pub const fn </span>ordinal(<span class="self">self</span>) -> u16 { |
| <span class="self">self</span>.date.ordinal() |
| } |
| |
| <span class="kw">pub const fn </span>iso_week(<span class="self">self</span>) -> u8 { |
| <span class="self">self</span>.date.iso_week() |
| } |
| |
| <span class="kw">pub const fn </span>sunday_based_week(<span class="self">self</span>) -> u8 { |
| <span class="self">self</span>.date.sunday_based_week() |
| } |
| |
| <span class="kw">pub const fn </span>monday_based_week(<span class="self">self</span>) -> u8 { |
| <span class="self">self</span>.date.monday_based_week() |
| } |
| |
| <span class="kw">pub const fn </span>to_calendar_date(<span class="self">self</span>) -> (i32, Month, u8) { |
| <span class="self">self</span>.date.to_calendar_date() |
| } |
| |
| <span class="kw">pub const fn </span>to_ordinal_date(<span class="self">self</span>) -> (i32, u16) { |
| <span class="self">self</span>.date.to_ordinal_date() |
| } |
| |
| <span class="kw">pub const fn </span>to_iso_week_date(<span class="self">self</span>) -> (i32, u8, Weekday) { |
| <span class="self">self</span>.date.to_iso_week_date() |
| } |
| |
| <span class="kw">pub const fn </span>weekday(<span class="self">self</span>) -> Weekday { |
| <span class="self">self</span>.date.weekday() |
| } |
| |
| <span class="kw">pub const fn </span>to_julian_day(<span class="self">self</span>) -> i32 { |
| <span class="self">self</span>.date.to_julian_day() |
| } |
| <span class="comment">// endregion date getters |
| |
| // region: time getters |
| </span><span class="kw">pub const fn </span>as_hms(<span class="self">self</span>) -> (u8, u8, u8) { |
| <span class="self">self</span>.time.as_hms() |
| } |
| |
| <span class="kw">pub const fn </span>as_hms_milli(<span class="self">self</span>) -> (u8, u8, u8, u16) { |
| <span class="self">self</span>.time.as_hms_milli() |
| } |
| |
| <span class="kw">pub const fn </span>as_hms_micro(<span class="self">self</span>) -> (u8, u8, u8, u32) { |
| <span class="self">self</span>.time.as_hms_micro() |
| } |
| |
| <span class="kw">pub const fn </span>as_hms_nano(<span class="self">self</span>) -> (u8, u8, u8, u32) { |
| <span class="self">self</span>.time.as_hms_nano() |
| } |
| |
| <span class="kw">pub const fn </span>hour(<span class="self">self</span>) -> u8 { |
| <span class="self">self</span>.time.hour() |
| } |
| |
| <span class="kw">pub const fn </span>minute(<span class="self">self</span>) -> u8 { |
| <span class="self">self</span>.time.minute() |
| } |
| |
| <span class="kw">pub const fn </span>second(<span class="self">self</span>) -> u8 { |
| <span class="self">self</span>.time.second() |
| } |
| |
| <span class="kw">pub const fn </span>millisecond(<span class="self">self</span>) -> u16 { |
| <span class="self">self</span>.time.millisecond() |
| } |
| |
| <span class="kw">pub const fn </span>microsecond(<span class="self">self</span>) -> u32 { |
| <span class="self">self</span>.time.microsecond() |
| } |
| |
| <span class="kw">pub const fn </span>nanosecond(<span class="self">self</span>) -> u32 { |
| <span class="self">self</span>.time.nanosecond() |
| } |
| <span class="comment">// endregion time getters |
| |
| // region: unix timestamp getters |
| </span><span class="kw">pub const fn </span>unix_timestamp(<span class="self">self</span>) -> i64 |
| <span class="kw">where |
| </span>O: HasLogicalOffset, |
| { |
| <span class="kw">let </span>offset = maybe_offset_as_offset::<O>(<span class="self">self</span>.offset).whole_seconds() <span class="kw">as </span>i64; |
| |
| <span class="kw">let </span>days = |
| (<span class="self">self</span>.to_julian_day() <span class="kw">as </span>i64 - UNIX_EPOCH_JULIAN_DAY <span class="kw">as </span>i64) * Second.per(Day) <span class="kw">as </span>i64; |
| <span class="kw">let </span>hours = <span class="self">self</span>.hour() <span class="kw">as </span>i64 * Second.per(Hour) <span class="kw">as </span>i64; |
| <span class="kw">let </span>minutes = <span class="self">self</span>.minute() <span class="kw">as </span>i64 * Second.per(Minute) <span class="kw">as </span>i64; |
| <span class="kw">let </span>seconds = <span class="self">self</span>.second() <span class="kw">as </span>i64; |
| days + hours + minutes + seconds - offset |
| } |
| |
| <span class="kw">pub const fn </span>unix_timestamp_nanos(<span class="self">self</span>) -> i128 |
| <span class="kw">where |
| </span>O: HasLogicalOffset, |
| { |
| <span class="self">self</span>.unix_timestamp() <span class="kw">as </span>i128 * Nanosecond.per(Second) <span class="kw">as </span>i128 + <span class="self">self</span>.nanosecond() <span class="kw">as </span>i128 |
| } |
| <span class="comment">// endregion unix timestamp getters |
| // endregion: getters |
| |
| // region: attach offset |
| </span><span class="kw">pub const fn </span>assume_offset(<span class="self">self</span>, offset: UtcOffset) -> DateTime<offset_kind::Fixed> |
| <span class="kw">where |
| </span>O: NoLogicalOffset, |
| { |
| DateTime { |
| date: <span class="self">self</span>.date, |
| time: <span class="self">self</span>.time, |
| offset, |
| } |
| } |
| |
| <span class="kw">pub const fn </span>assume_utc(<span class="self">self</span>) -> DateTime<offset_kind::Fixed> |
| <span class="kw">where |
| </span>O: NoLogicalOffset, |
| { |
| <span class="self">self</span>.assume_offset(UtcOffset::UTC) |
| } |
| <span class="comment">// endregion attach offset |
| |
| // region: to offset |
| </span><span class="kw">pub const fn </span>to_offset(<span class="self">self</span>, offset: UtcOffset) -> DateTime<offset_kind::Fixed> |
| <span class="kw">where |
| </span>O: HasLogicalOffset, |
| { |
| <span class="kw">let </span>self_offset = maybe_offset_as_offset::<O>(<span class="self">self</span>.offset); |
| |
| <span class="kw">if </span>self_offset.whole_hours() == offset.whole_hours() |
| && self_offset.minutes_past_hour() == offset.minutes_past_hour() |
| && self_offset.seconds_past_minute() == offset.seconds_past_minute() |
| { |
| <span class="kw">return </span>DateTime { |
| date: <span class="self">self</span>.date, |
| time: <span class="self">self</span>.time, |
| offset, |
| }; |
| } |
| |
| <span class="kw">let </span>(year, ordinal, time) = <span class="self">self</span>.to_offset_raw(offset); |
| |
| <span class="kw">if </span>year > MAX_YEAR || year < MIN_YEAR { |
| <span class="macro">panic!</span>(<span class="string">"local datetime out of valid range"</span>); |
| } |
| |
| DateTime { |
| date: Date::__from_ordinal_date_unchecked(year, ordinal), |
| time, |
| offset, |
| } |
| } |
| |
| <span class="doccomment">/// Equivalent to `.to_offset(UtcOffset::UTC)`, but returning the year, ordinal, and time. This |
| /// avoids constructing an invalid [`Date`] if the new value is out of range. |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>to_offset_raw(<span class="self">self</span>, offset: UtcOffset) -> (i32, u16, Time) { |
| <span class="kw">let </span><span class="prelude-val">Some</span>(from) = maybe_offset_as_offset_opt::<O>(<span class="self">self</span>.offset) <span class="kw">else </span>{ |
| <span class="comment">// No adjustment is needed because there is no offset. |
| </span><span class="kw">return </span>(<span class="self">self</span>.year(), <span class="self">self</span>.ordinal(), <span class="self">self</span>.time); |
| }; |
| <span class="kw">let </span>to = offset; |
| |
| <span class="comment">// Fast path for when no conversion is necessary. |
| </span><span class="kw">if </span>from.whole_hours() == to.whole_hours() |
| && from.minutes_past_hour() == to.minutes_past_hour() |
| && from.seconds_past_minute() == to.seconds_past_minute() |
| { |
| <span class="kw">return </span>(<span class="self">self</span>.year(), <span class="self">self</span>.ordinal(), <span class="self">self</span>.time()); |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>second = <span class="self">self</span>.second() <span class="kw">as </span>i16 - from.seconds_past_minute() <span class="kw">as </span>i16 |
| + to.seconds_past_minute() <span class="kw">as </span>i16; |
| <span class="kw">let </span><span class="kw-2">mut </span>minute = |
| <span class="self">self</span>.minute() <span class="kw">as </span>i16 - from.minutes_past_hour() <span class="kw">as </span>i16 + to.minutes_past_hour() <span class="kw">as </span>i16; |
| <span class="kw">let </span><span class="kw-2">mut </span>hour = <span class="self">self</span>.hour() <span class="kw">as </span>i8 - from.whole_hours() + to.whole_hours(); |
| <span class="kw">let </span>(<span class="kw-2">mut </span>year, ordinal) = <span class="self">self</span>.to_ordinal_date(); |
| <span class="kw">let </span><span class="kw-2">mut </span>ordinal = ordinal <span class="kw">as </span>i16; |
| |
| <span class="comment">// Cascade the values twice. This is needed because the values are adjusted twice above. |
| </span><span class="macro">cascade!</span>(second <span class="kw">in </span><span class="number">0</span>..Second.per(Minute) <span class="kw">as </span>i16 => minute); |
| <span class="macro">cascade!</span>(second <span class="kw">in </span><span class="number">0</span>..Second.per(Minute) <span class="kw">as </span>i16 => minute); |
| <span class="macro">cascade!</span>(minute <span class="kw">in </span><span class="number">0</span>..Minute.per(Hour) <span class="kw">as </span>i16 => hour); |
| <span class="macro">cascade!</span>(minute <span class="kw">in </span><span class="number">0</span>..Minute.per(Hour) <span class="kw">as </span>i16 => hour); |
| <span class="macro">cascade!</span>(hour <span class="kw">in </span><span class="number">0</span>..Hour.per(Day) <span class="kw">as </span>i8 => ordinal); |
| <span class="macro">cascade!</span>(hour <span class="kw">in </span><span class="number">0</span>..Hour.per(Day) <span class="kw">as </span>i8 => ordinal); |
| <span class="macro">cascade!</span>(ordinal => year); |
| |
| <span class="macro">debug_assert!</span>(ordinal > <span class="number">0</span>); |
| <span class="macro">debug_assert!</span>(ordinal <= <span class="kw">crate</span>::util::days_in_year(year) <span class="kw">as </span>i16); |
| |
| ( |
| year, |
| ordinal <span class="kw">as _</span>, |
| Time::__from_hms_nanos_unchecked( |
| hour <span class="kw">as _</span>, |
| minute <span class="kw">as _</span>, |
| second <span class="kw">as _</span>, |
| <span class="self">self</span>.nanosecond(), |
| ), |
| ) |
| } |
| <span class="comment">// endregion to offset |
| |
| // region: checked arithmetic |
| </span><span class="kw">pub const fn </span>checked_add(<span class="self">self</span>, duration: Duration) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="kw">let </span>(date_adjustment, time) = <span class="self">self</span>.time.adjusting_add(duration); |
| <span class="kw">let </span>date = <span class="macro">const_try_opt!</span>(<span class="self">self</span>.date.checked_add(duration)); |
| |
| <span class="prelude-val">Some</span>(<span class="self">Self </span>{ |
| date: <span class="kw">match </span>date_adjustment { |
| util::DateAdjustment::Previous => <span class="macro">const_try_opt!</span>(date.previous_day()), |
| util::DateAdjustment::Next => <span class="macro">const_try_opt!</span>(date.next_day()), |
| util::DateAdjustment::None => date, |
| }, |
| time, |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>checked_sub(<span class="self">self</span>, duration: Duration) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="kw">let </span>(date_adjustment, time) = <span class="self">self</span>.time.adjusting_sub(duration); |
| <span class="kw">let </span>date = <span class="macro">const_try_opt!</span>(<span class="self">self</span>.date.checked_sub(duration)); |
| |
| <span class="prelude-val">Some</span>(<span class="self">Self </span>{ |
| date: <span class="kw">match </span>date_adjustment { |
| util::DateAdjustment::Previous => <span class="macro">const_try_opt!</span>(date.previous_day()), |
| util::DateAdjustment::Next => <span class="macro">const_try_opt!</span>(date.next_day()), |
| util::DateAdjustment::None => date, |
| }, |
| time, |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| <span class="comment">// endregion checked arithmetic |
| |
| // region: saturating arithmetic |
| </span><span class="kw">pub const fn </span>saturating_add(<span class="self">self</span>, duration: Duration) -> <span class="self">Self </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(datetime) = <span class="self">self</span>.checked_add(duration) { |
| datetime |
| } <span class="kw">else if </span>duration.is_negative() { |
| <span class="self">Self </span>{ |
| date: Date::MIN, |
| time: Time::MIN, |
| offset: <span class="self">self</span>.offset, |
| } |
| } <span class="kw">else </span>{ |
| <span class="self">Self </span>{ |
| date: Date::MAX, |
| time: Time::MAX, |
| offset: <span class="self">self</span>.offset, |
| } |
| } |
| } |
| |
| <span class="kw">pub const fn </span>saturating_sub(<span class="self">self</span>, duration: Duration) -> <span class="self">Self </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(datetime) = <span class="self">self</span>.checked_sub(duration) { |
| datetime |
| } <span class="kw">else if </span>duration.is_negative() { |
| <span class="self">Self </span>{ |
| date: Date::MAX, |
| time: Time::MAX, |
| offset: <span class="self">self</span>.offset, |
| } |
| } <span class="kw">else </span>{ |
| <span class="self">Self </span>{ |
| date: Date::MIN, |
| time: Time::MIN, |
| offset: <span class="self">self</span>.offset, |
| } |
| } |
| } |
| <span class="comment">// endregion saturating arithmetic |
| |
| // region: replacement |
| </span><span class="kw">pub const fn </span>replace_time(<span class="self">self</span>, time: Time) -> <span class="self">Self </span>{ |
| <span class="self">Self </span>{ |
| date: <span class="self">self</span>.date, |
| time, |
| offset: <span class="self">self</span>.offset, |
| } |
| } |
| |
| <span class="kw">pub const fn </span>replace_date(<span class="self">self</span>, date: Date) -> <span class="self">Self </span>{ |
| <span class="self">Self </span>{ |
| date, |
| time: <span class="self">self</span>.time, |
| offset: <span class="self">self</span>.offset, |
| } |
| } |
| |
| <span class="kw">pub const fn </span>replace_date_time(<span class="self">self</span>, date_time: DateTime<offset_kind::None>) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>O: HasLogicalOffset, |
| { |
| <span class="self">Self </span>{ |
| date: date_time.date, |
| time: date_time.time, |
| offset: <span class="self">self</span>.offset, |
| } |
| } |
| |
| <span class="kw">pub const fn </span>replace_year(<span class="self">self</span>, year: i32) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="macro">const_try!</span>(<span class="self">self</span>.date.replace_year(year)), |
| time: <span class="self">self</span>.time, |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>replace_month(<span class="self">self</span>, month: Month) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="macro">const_try!</span>(<span class="self">self</span>.date.replace_month(month)), |
| time: <span class="self">self</span>.time, |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>replace_day(<span class="self">self</span>, day: u8) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="macro">const_try!</span>(<span class="self">self</span>.date.replace_day(day)), |
| time: <span class="self">self</span>.time, |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>replace_hour(<span class="self">self</span>, hour: u8) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="self">self</span>.date, |
| time: <span class="macro">const_try!</span>(<span class="self">self</span>.time.replace_hour(hour)), |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>replace_minute(<span class="self">self</span>, minute: u8) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="self">self</span>.date, |
| time: <span class="macro">const_try!</span>(<span class="self">self</span>.time.replace_minute(minute)), |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>replace_second(<span class="self">self</span>, second: u8) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="self">self</span>.date, |
| time: <span class="macro">const_try!</span>(<span class="self">self</span>.time.replace_second(second)), |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>replace_millisecond( |
| <span class="self">self</span>, |
| millisecond: u16, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="self">self</span>.date, |
| time: <span class="macro">const_try!</span>(<span class="self">self</span>.time.replace_millisecond(millisecond)), |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>replace_microsecond( |
| <span class="self">self</span>, |
| microsecond: u32, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="self">self</span>.date, |
| time: <span class="macro">const_try!</span>(<span class="self">self</span>.time.replace_microsecond(microsecond)), |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="kw">pub const fn </span>replace_nanosecond(<span class="self">self</span>, nanosecond: u32) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::ComponentRange> { |
| <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date: <span class="self">self</span>.date, |
| time: <span class="macro">const_try!</span>(<span class="self">self</span>.time.replace_nanosecond(nanosecond)), |
| offset: <span class="self">self</span>.offset, |
| }) |
| } |
| |
| <span class="comment">// Don't gate this on just having an offset, as `ZonedDateTime` cannot be set to an arbitrary |
| // offset. |
| </span><span class="kw">pub const fn </span>replace_offset(<span class="self">self</span>, offset: UtcOffset) -> DateTime<offset_kind::Fixed> |
| <span class="kw">where |
| </span>O: IsOffsetKindFixed, |
| { |
| DateTime { |
| date: <span class="self">self</span>.date, |
| time: <span class="self">self</span>.time, |
| offset, |
| } |
| } |
| |
| <span class="comment">// endregion replacement |
| |
| // region: formatting & parsing |
| </span><span class="attribute">#[cfg(feature = <span class="string">"formatting"</span>)] |
| </span><span class="kw">pub fn </span>format_into( |
| <span class="self">self</span>, |
| output: <span class="kw-2">&mut </span><span class="kw">impl </span>io::Write, |
| format: <span class="kw-2">&</span>(<span class="kw">impl </span>Formattable + <span class="question-mark">?</span>Sized), |
| ) -> <span class="prelude-ty">Result</span><usize, error::Format> { |
| format.format_into( |
| output, |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.date), |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.time), |
| maybe_offset_as_offset_opt::<O>(<span class="self">self</span>.offset), |
| ) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"formatting"</span>)] |
| </span><span class="kw">pub fn </span>format(<span class="self">self</span>, format: <span class="kw-2">&</span>(<span class="kw">impl </span>Formattable + <span class="question-mark">?</span>Sized)) -> <span class="prelude-ty">Result</span><String, error::Format> { |
| format.format( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.date), |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.time), |
| maybe_offset_as_offset_opt::<O>(<span class="self">self</span>.offset), |
| ) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">pub fn </span>parse( |
| input: <span class="kw-2">&</span>str, |
| description: <span class="kw-2">&</span>(<span class="kw">impl </span>Parsable + <span class="question-mark">?</span>Sized), |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, error::Parse> { |
| description.parse_date_time(input.as_bytes()) |
| } |
| |
| <span class="doccomment">/// A helper method to check if the `OffsetDateTime` is a valid representation of a leap second. |
| /// Leap seconds, when parsed, are represented as the preceding nanosecond. However, leap |
| /// seconds can only occur as the last second of a month UTC. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>is_valid_leap_second_stand_in(<span class="self">self</span>) -> bool { |
| <span class="comment">// Leap seconds aren't allowed if there is no offset. |
| </span><span class="kw">if </span>!O::HAS_LOGICAL_OFFSET { |
| <span class="kw">return </span><span class="bool-val">false</span>; |
| } |
| |
| <span class="comment">// This comparison doesn't need to be adjusted for the stored offset, so check it first for |
| // speed. |
| </span><span class="kw">if </span><span class="self">self</span>.nanosecond() != <span class="number">999_999_999 </span>{ |
| <span class="kw">return </span><span class="bool-val">false</span>; |
| } |
| |
| <span class="kw">let </span>(year, ordinal, time) = <span class="self">self</span>.to_offset_raw(UtcOffset::UTC); |
| <span class="kw">let </span><span class="prelude-val">Ok</span>(date) = Date::from_ordinal_date(year, ordinal) <span class="kw">else </span>{ <span class="kw">return </span><span class="bool-val">false </span>}; |
| |
| time.hour() == <span class="number">23 |
| </span>&& time.minute() == <span class="number">59 |
| </span>&& time.second() == <span class="number">59 |
| </span>&& date.day() == util::days_in_year_month(year, date.month()) |
| } |
| |
| <span class="comment">// endregion formatting & parsing |
| |
| // region: deprecated time getters |
| |
| // All the way at the bottom as it's low priority. These methods only exist for when |
| // `OffsetDateTime` is made an alias of `DateTime<Fixed>`. Consider hiding these methods from |
| // documentation in the future. |
| |
| </span><span class="attribute">#[doc(hidden)] |
| #[allow(dead_code)] </span><span class="comment">// while functionally private |
| </span><span class="attribute">#[deprecated(since = <span class="string">"0.3.18"</span>, note = <span class="string">"use `as_hms` instead"</span>)] |
| </span><span class="kw">pub const fn </span>to_hms(<span class="self">self</span>) -> (u8, u8, u8) |
| <span class="kw">where |
| </span>O: IsOffsetKindFixed, |
| { |
| <span class="self">self</span>.time.as_hms() |
| } |
| |
| <span class="attribute">#[doc(hidden)] |
| #[allow(dead_code)] </span><span class="comment">// while functionally private |
| </span><span class="attribute">#[deprecated(since = <span class="string">"0.3.18"</span>, note = <span class="string">"use `as_hms_milli` instead"</span>)] |
| </span><span class="kw">pub const fn </span>to_hms_milli(<span class="self">self</span>) -> (u8, u8, u8, u16) |
| <span class="kw">where |
| </span>O: IsOffsetKindFixed, |
| { |
| <span class="self">self</span>.time.as_hms_milli() |
| } |
| |
| <span class="attribute">#[doc(hidden)] |
| #[allow(dead_code)] </span><span class="comment">// while functionally private |
| </span><span class="attribute">#[deprecated(since = <span class="string">"0.3.18"</span>, note = <span class="string">"use `as_hms_micro` instead"</span>)] |
| </span><span class="kw">pub const fn </span>to_hms_micro(<span class="self">self</span>) -> (u8, u8, u8, u32) |
| <span class="kw">where |
| </span>O: IsOffsetKindFixed, |
| { |
| <span class="self">self</span>.time.as_hms_micro() |
| } |
| |
| <span class="attribute">#[doc(hidden)] |
| #[allow(dead_code)] </span><span class="comment">// while functionally private |
| </span><span class="attribute">#[deprecated(since = <span class="string">"0.3.18"</span>, note = <span class="string">"use `as_hms_nano` instead"</span>)] |
| </span><span class="kw">pub const fn </span>to_hms_nano(<span class="self">self</span>) -> (u8, u8, u8, u32) |
| <span class="kw">where |
| </span>O: IsOffsetKindFixed, |
| { |
| <span class="self">self</span>.time.as_hms_nano() |
| } |
| <span class="comment">// endregion deprecated time getters |
| </span>} |
| |
| <span class="kw">impl</span><O: MaybeOffset> fmt::Debug <span class="kw">for </span>DateTime<O> { |
| <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="self">Self </span><span class="kw">as </span>fmt::Display>::fmt(<span class="self">self</span>, f) |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> fmt::Display <span class="kw">for </span>DateTime<O> { |
| <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="macro">write!</span>(f, <span class="string">"{} {}"</span>, <span class="self">self</span>.date, <span class="self">self</span>.time)<span class="question-mark">?</span>; |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(offset) = maybe_offset_as_offset_opt::<O>(<span class="self">self</span>.offset) { |
| <span class="macro">write!</span>(f, <span class="string">" {offset}"</span>)<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="comment">// region: trait impls |
| </span><span class="kw">impl</span><O: MaybeOffset> PartialEq <span class="kw">for </span>DateTime<O> { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span><span class="self">Self</span>) -> bool { |
| <span class="kw">if </span>O::HAS_LOGICAL_OFFSET { |
| <span class="self">self</span>.to_offset_raw(UtcOffset::UTC) == rhs.to_offset_raw(UtcOffset::UTC) |
| } <span class="kw">else </span>{ |
| (<span class="self">self</span>.date, <span class="self">self</span>.time) == (rhs.date, rhs.time) |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> Eq <span class="kw">for </span>DateTime<O> {} |
| |
| <span class="kw">impl</span><O: MaybeOffset> PartialOrd <span class="kw">for </span>DateTime<O> { |
| <span class="kw">fn </span>partial_cmp(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span><span class="self">Self</span>) -> <span class="prelude-ty">Option</span><Ordering> { |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.cmp(rhs)) |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> Ord <span class="kw">for </span>DateTime<O> { |
| <span class="kw">fn </span>cmp(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span><span class="self">Self</span>) -> Ordering { |
| <span class="kw">if </span>O::HAS_LOGICAL_OFFSET { |
| <span class="self">self</span>.to_offset_raw(UtcOffset::UTC) |
| .cmp(<span class="kw-2">&</span>rhs.to_offset_raw(UtcOffset::UTC)) |
| } <span class="kw">else </span>{ |
| (<span class="self">self</span>.date, <span class="self">self</span>.time).cmp(<span class="kw-2">&</span>(rhs.date, rhs.time)) |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> Hash <span class="kw">for </span>DateTime<O> { |
| <span class="kw">fn </span>hash<H: Hasher>(<span class="kw-2">&</span><span class="self">self</span>, hasher: <span class="kw-2">&mut </span>H) { |
| <span class="kw">if </span>O::HAS_LOGICAL_OFFSET { |
| <span class="self">self</span>.to_offset_raw(UtcOffset::UTC).hash(hasher); |
| } <span class="kw">else </span>{ |
| (<span class="self">self</span>.date, <span class="self">self</span>.time).hash(hasher); |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> Add<Duration> <span class="kw">for </span>DateTime<O> { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>add(<span class="self">self</span>, duration: Duration) -> <span class="self">Self </span>{ |
| <span class="self">self</span>.checked_add(duration) |
| .expect(<span class="string">"resulting value is out of range"</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> Add<StdDuration> <span class="kw">for </span>DateTime<O> { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>add(<span class="self">self</span>, duration: StdDuration) -> <span class="self">Self</span>::Output { |
| <span class="kw">let </span>(is_next_day, time) = <span class="self">self</span>.time.adjusting_add_std(duration); |
| |
| <span class="self">Self </span>{ |
| date: <span class="kw">if </span>is_next_day { |
| (<span class="self">self</span>.date + duration) |
| .next_day() |
| .expect(<span class="string">"resulting value is out of range"</span>) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.date + duration |
| }, |
| time, |
| offset: <span class="self">self</span>.offset, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> AddAssign<Duration> <span class="kw">for </span>DateTime<O> { |
| <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; |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> AddAssign<StdDuration> <span class="kw">for </span>DateTime<O> { |
| <span class="kw">fn </span>add_assign(<span class="kw-2">&mut </span><span class="self">self</span>, rhs: StdDuration) { |
| <span class="kw-2">*</span><span class="self">self </span>= <span class="kw-2">*</span><span class="self">self </span>+ rhs; |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> Sub<Duration> <span class="kw">for </span>DateTime<O> { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>sub(<span class="self">self</span>, duration: Duration) -> <span class="self">Self </span>{ |
| <span class="self">self</span>.checked_sub(duration) |
| .expect(<span class="string">"resulting value is out of range"</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> Sub<StdDuration> <span class="kw">for </span>DateTime<O> { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>sub(<span class="self">self</span>, duration: StdDuration) -> <span class="self">Self</span>::Output { |
| <span class="kw">let </span>(is_previous_day, time) = <span class="self">self</span>.time.adjusting_sub_std(duration); |
| |
| <span class="self">Self </span>{ |
| date: <span class="kw">if </span>is_previous_day { |
| (<span class="self">self</span>.date - duration) |
| .previous_day() |
| .expect(<span class="string">"resulting value is out of range"</span>) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.date - duration |
| }, |
| time, |
| offset: <span class="self">self</span>.offset, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> SubAssign<Duration> <span class="kw">for </span>DateTime<O> { |
| <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; |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> SubAssign<StdDuration> <span class="kw">for </span>DateTime<O> { |
| <span class="kw">fn </span>sub_assign(<span class="kw-2">&mut </span><span class="self">self</span>, rhs: StdDuration) { |
| <span class="kw-2">*</span><span class="self">self </span>= <span class="kw-2">*</span><span class="self">self </span>- rhs; |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> Sub<<span class="self">Self</span>> <span class="kw">for </span>DateTime<O> { |
| <span class="kw">type </span>Output = Duration; |
| |
| <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="kw">let </span>base = (<span class="self">self</span>.date - rhs.date) + (<span class="self">self</span>.time - rhs.time); |
| |
| <span class="kw">match </span>( |
| maybe_offset_as_offset_opt::<O>(<span class="self">self</span>.offset), |
| maybe_offset_as_offset_opt::<O>(rhs.offset), |
| ) { |
| (<span class="prelude-val">Some</span>(self_offset), <span class="prelude-val">Some</span>(rhs_offset)) => { |
| <span class="kw">let </span>adjustment = Duration::seconds( |
| (self_offset.whole_seconds() - rhs_offset.whole_seconds()) <span class="kw">as </span>i64, |
| ); |
| base - adjustment |
| } |
| (left, right) => { |
| <span class="macro">debug_assert!</span>( |
| left.is_none() && right.is_none(), |
| <span class="string">"offset type should not be different for the same type" |
| </span>); |
| base |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>Add<Duration> <span class="kw">for </span>SystemTime { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>add(<span class="self">self</span>, duration: Duration) -> <span class="self">Self</span>::Output { |
| <span class="kw">if </span>duration.is_zero() { |
| <span class="self">self |
| </span>} <span class="kw">else if </span>duration.is_positive() { |
| <span class="self">self </span>+ duration.unsigned_abs() |
| } <span class="kw">else </span>{ |
| <span class="macro">debug_assert!</span>(duration.is_negative()); |
| <span class="self">self </span>- duration.unsigned_abs() |
| } |
| } |
| } |
| |
| <span class="macro">impl_add_assign!</span>(SystemTime: <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] </span>Duration); |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>Sub<Duration> <span class="kw">for </span>SystemTime { |
| <span class="kw">type </span>Output = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>sub(<span class="self">self</span>, duration: Duration) -> <span class="self">Self</span>::Output { |
| (DateTime::from(<span class="self">self</span>) - duration).into() |
| } |
| } |
| |
| <span class="macro">impl_sub_assign!</span>(SystemTime: <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] </span>Duration); |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>Sub<SystemTime> <span class="kw">for </span>DateTime<offset_kind::Fixed> { |
| <span class="kw">type </span>Output = Duration; |
| |
| <span class="kw">fn </span>sub(<span class="self">self</span>, rhs: SystemTime) -> <span class="self">Self</span>::Output { |
| <span class="self">self </span>- <span class="self">Self</span>::from(rhs) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>Sub<DateTime<offset_kind::Fixed>> <span class="kw">for </span>SystemTime { |
| <span class="kw">type </span>Output = Duration; |
| |
| <span class="kw">fn </span>sub(<span class="self">self</span>, rhs: DateTime<offset_kind::Fixed>) -> <span class="self">Self</span>::Output { |
| DateTime::<offset_kind::Fixed>::from(<span class="self">self</span>) - rhs |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>PartialEq<SystemTime> <span class="kw">for </span>DateTime<offset_kind::Fixed> { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span>SystemTime) -> bool { |
| <span class="self">self </span>== <span class="kw-2">&</span><span class="self">Self</span>::from(<span class="kw-2">*</span>rhs) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>PartialEq<DateTime<offset_kind::Fixed>> <span class="kw">for </span>SystemTime { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, rhs: <span class="kw-2">&</span>DateTime<offset_kind::Fixed>) -> bool { |
| <span class="kw-2">&</span>DateTime::<offset_kind::Fixed>::from(<span class="kw-2">*</span><span class="self">self</span>) == rhs |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>PartialOrd<SystemTime> <span class="kw">for </span>DateTime<offset_kind::Fixed> { |
| <span class="kw">fn </span>partial_cmp(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span>SystemTime) -> <span class="prelude-ty">Option</span><Ordering> { |
| <span class="self">self</span>.partial_cmp(<span class="kw-2">&</span><span class="self">Self</span>::from(<span class="kw-2">*</span>other)) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>PartialOrd<DateTime<offset_kind::Fixed>> <span class="kw">for </span>SystemTime { |
| <span class="kw">fn </span>partial_cmp(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span>DateTime<offset_kind::Fixed>) -> <span class="prelude-ty">Option</span><Ordering> { |
| DateTime::<offset_kind::Fixed>::from(<span class="kw-2">*</span><span class="self">self</span>).partial_cmp(other) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>From<SystemTime> <span class="kw">for </span>DateTime<offset_kind::Fixed> { |
| <span class="kw">fn </span>from(system_time: SystemTime) -> <span class="self">Self </span>{ |
| <span class="kw">match </span>system_time.duration_since(SystemTime::UNIX_EPOCH) { |
| <span class="prelude-val">Ok</span>(duration) => <span class="self">Self</span>::UNIX_EPOCH + duration, |
| <span class="prelude-val">Err</span>(err) => <span class="self">Self</span>::UNIX_EPOCH - err.duration(), |
| } |
| } |
| } |
| |
| <span class="attribute">#[allow(clippy::fallible_impl_from)] </span><span class="comment">// caused by `debug_assert!` |
| </span><span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>From<DateTime<offset_kind::Fixed>> <span class="kw">for </span>SystemTime { |
| <span class="kw">fn </span>from(datetime: DateTime<offset_kind::Fixed>) -> <span class="self">Self </span>{ |
| <span class="kw">let </span>duration = datetime - DateTime::<offset_kind::Fixed>::UNIX_EPOCH; |
| |
| <span class="kw">if </span>duration.is_zero() { |
| <span class="self">Self</span>::UNIX_EPOCH |
| } <span class="kw">else if </span>duration.is_positive() { |
| <span class="self">Self</span>::UNIX_EPOCH + duration.unsigned_abs() |
| } <span class="kw">else </span>{ |
| <span class="macro">debug_assert!</span>(duration.is_negative()); |
| <span class="self">Self</span>::UNIX_EPOCH - duration.unsigned_abs() |
| } |
| } |
| } |
| |
| <span class="attribute">#[allow(clippy::fallible_impl_from)] |
| #[cfg(all( |
| target_family = <span class="string">"wasm"</span>, |
| not(any(target_os = <span class="string">"emscripten"</span>, target_os = <span class="string">"wasi"</span>)), |
| feature = <span class="string">"wasm-bindgen" |
| </span>))] |
| </span><span class="kw">impl </span>From<js_sys::Date> <span class="kw">for </span>DateTime<offset_kind::Fixed> { |
| <span class="kw">fn </span>from(js_date: js_sys::Date) -> <span class="self">Self </span>{ |
| <span class="comment">// get_time() returns milliseconds |
| </span><span class="kw">let </span>timestamp_nanos = (js_date.get_time() * Nanosecond.per(Millisecond) <span class="kw">as </span>f64) <span class="kw">as </span>i128; |
| <span class="self">Self</span>::from_unix_timestamp_nanos(timestamp_nanos) |
| .expect(<span class="string">"invalid timestamp: Timestamp cannot fit in range"</span>) |
| } |
| } |
| |
| <span class="attribute">#[cfg(all( |
| target_family = <span class="string">"wasm"</span>, |
| not(any(target_os = <span class="string">"emscripten"</span>, target_os = <span class="string">"wasi"</span>)), |
| feature = <span class="string">"wasm-bindgen" |
| </span>))] |
| </span><span class="kw">impl </span>From<DateTime<offset_kind::Fixed>> <span class="kw">for </span>js_sys::Date { |
| <span class="kw">fn </span>from(datetime: DateTime<offset_kind::Fixed>) -> <span class="self">Self </span>{ |
| <span class="comment">// new Date() takes milliseconds |
| </span><span class="kw">let </span>timestamp = |
| (datetime.unix_timestamp_nanos() / Nanosecond.per(Millisecond) <span class="kw">as </span>i128) <span class="kw">as </span>f64; |
| js_sys::Date::new(<span class="kw-2">&</span>timestamp.into()) |
| } |
| } |
| <span class="comment">// endregion trait impls |
| </span></code></pre></div> |
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