| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/time-0.3.21/src/parsing/parsed.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>parsed.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="icon" href="https://avatars0.githubusercontent.com/u/55999857"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../time/index.html"><div class="logo-container"> |
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| <span id="838">838</span> |
| <span id="839">839</span> |
| <span id="840">840</span> |
| </pre><pre class="rust"><code><span class="doccomment">//! Information parsed from an input and format description. |
| |
| </span><span class="kw">use </span>core::mem::MaybeUninit; |
| <span class="kw">use </span>core::num::{NonZeroU16, NonZeroU8}; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::date_time::{maybe_offset_from_offset, offset_kind, DateTime, MaybeOffset}; |
| <span class="kw">use </span><span class="kw">crate</span>::error::TryFromParsed::InsufficientInformation; |
| <span class="kw">use </span><span class="kw">crate</span>::format_description::modifier::{WeekNumberRepr, YearRepr}; |
| <span class="attribute">#[cfg(feature = <span class="string">"alloc"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::format_description::OwnedFormatItem; |
| <span class="kw">use </span><span class="kw">crate</span>::format_description::{Component, FormatItem}; |
| <span class="kw">use </span><span class="kw">crate</span>::parsing::component::{ |
| parse_day, parse_hour, parse_ignore, parse_minute, parse_month, parse_offset_hour, |
| parse_offset_minute, parse_offset_second, parse_ordinal, parse_period, parse_second, |
| parse_subsecond, parse_unix_timestamp, parse_week_number, parse_weekday, parse_year, Period, |
| }; |
| <span class="kw">use </span><span class="kw">crate</span>::parsing::ParsedItem; |
| <span class="kw">use crate</span>::{error, Date, Month, OffsetDateTime, PrimitiveDateTime, Time, UtcOffset, Weekday}; |
| |
| <span class="doccomment">/// Sealed to prevent downstream implementations. |
| </span><span class="kw">mod </span>sealed { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="doccomment">/// A trait to allow `parse_item` to be generic. |
| </span><span class="kw">pub trait </span>AnyFormatItem { |
| <span class="doccomment">/// Parse a single item, returning the remaining input on success. |
| </span><span class="kw">fn </span>parse_item<<span class="lifetime">'a</span>>( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| parsed: <span class="kw-2">&mut </span>Parsed, |
| input: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], |
| ) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8], error::ParseFromDescription>; |
| } |
| } |
| |
| <span class="kw">impl </span>sealed::AnyFormatItem <span class="kw">for </span>FormatItem<<span class="lifetime">'_</span>> { |
| <span class="kw">fn </span>parse_item<<span class="lifetime">'a</span>>( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| parsed: <span class="kw-2">&mut </span>Parsed, |
| input: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], |
| ) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8], error::ParseFromDescription> { |
| <span class="kw">match </span><span class="self">self </span>{ |
| <span class="self">Self</span>::Literal(literal) => Parsed::parse_literal(input, literal), |
| <span class="self">Self</span>::Component(component) => parsed.parse_component(input, <span class="kw-2">*</span>component), |
| <span class="self">Self</span>::Compound(compound) => parsed.parse_items(input, compound), |
| <span class="self">Self</span>::Optional(item) => parsed.parse_item(input, <span class="kw-2">*</span>item).or(<span class="prelude-val">Ok</span>(input)), |
| <span class="self">Self</span>::First(items) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>first_err = <span class="prelude-val">None</span>; |
| |
| <span class="kw">for </span>item <span class="kw">in </span>items.iter() { |
| <span class="kw">match </span>parsed.parse_item(input, item) { |
| <span class="prelude-val">Ok</span>(remaining_input) => <span class="kw">return </span><span class="prelude-val">Ok</span>(remaining_input), |
| <span class="prelude-val">Err</span>(err) <span class="kw">if </span>first_err.is_none() => first_err = <span class="prelude-val">Some</span>(err), |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => {} |
| } |
| } |
| |
| <span class="kw">match </span>first_err { |
| <span class="prelude-val">Some</span>(err) => <span class="prelude-val">Err</span>(err), |
| <span class="comment">// This location will be reached if the slice is empty, skipping the `for` loop. |
| // As this case is expected to be uncommon, there's no need to check up front. |
| </span><span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(input), |
| } |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"alloc"</span>)] |
| </span><span class="kw">impl </span>sealed::AnyFormatItem <span class="kw">for </span>OwnedFormatItem { |
| <span class="kw">fn </span>parse_item<<span class="lifetime">'a</span>>( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| parsed: <span class="kw-2">&mut </span>Parsed, |
| input: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], |
| ) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8], error::ParseFromDescription> { |
| <span class="kw">match </span><span class="self">self </span>{ |
| <span class="self">Self</span>::Literal(literal) => Parsed::parse_literal(input, literal), |
| <span class="self">Self</span>::Component(component) => parsed.parse_component(input, <span class="kw-2">*</span>component), |
| <span class="self">Self</span>::Compound(compound) => parsed.parse_items(input, compound), |
| <span class="self">Self</span>::Optional(item) => parsed.parse_item(input, item.as_ref()).or(<span class="prelude-val">Ok</span>(input)), |
| <span class="self">Self</span>::First(items) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>first_err = <span class="prelude-val">None</span>; |
| |
| <span class="kw">for </span>item <span class="kw">in </span>items.iter() { |
| <span class="kw">match </span>parsed.parse_item(input, item) { |
| <span class="prelude-val">Ok</span>(remaining_input) => <span class="kw">return </span><span class="prelude-val">Ok</span>(remaining_input), |
| <span class="prelude-val">Err</span>(err) <span class="kw">if </span>first_err.is_none() => first_err = <span class="prelude-val">Some</span>(err), |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => {} |
| } |
| } |
| |
| <span class="kw">match </span>first_err { |
| <span class="prelude-val">Some</span>(err) => <span class="prelude-val">Err</span>(err), |
| <span class="comment">// This location will be reached if the slice is empty, skipping the `for` loop. |
| // As this case is expected to be uncommon, there's no need to check up front. |
| </span><span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(input), |
| } |
| } |
| } |
| } |
| } |
| |
| <span class="doccomment">/// The type of the `flags` field in [`Parsed`]. Allows for changing a single location and having it |
| /// effect all uses. |
| </span><span class="kw">type </span>Flag = u32; |
| |
| <span class="doccomment">/// All information parsed. |
| /// |
| /// This information is directly used to construct the final values. |
| /// |
| /// Most users will not need think about this struct in any way. It is public to allow for manual |
| /// control over values, in the instance that the default parser is insufficient. |
| </span><span class="attribute">#[derive(Debug, Clone, Copy)] |
| </span><span class="kw">pub struct </span>Parsed { |
| <span class="doccomment">/// Bitflags indicating whether a particular field is present. |
| </span>flags: Flag, |
| <span class="doccomment">/// Calendar year. |
| </span>year: MaybeUninit<i32>, |
| <span class="doccomment">/// The last two digits of the calendar year. |
| </span>year_last_two: MaybeUninit<u8>, |
| <span class="doccomment">/// Year of the [ISO week date](https://en.wikipedia.org/wiki/ISO_week_date). |
| </span>iso_year: MaybeUninit<i32>, |
| <span class="doccomment">/// The last two digits of the ISO week year. |
| </span>iso_year_last_two: MaybeUninit<u8>, |
| <span class="doccomment">/// Month of the year. |
| </span>month: <span class="prelude-ty">Option</span><Month>, |
| <span class="doccomment">/// Week of the year, where week one begins on the first Sunday of the calendar year. |
| </span>sunday_week_number: MaybeUninit<u8>, |
| <span class="doccomment">/// Week of the year, where week one begins on the first Monday of the calendar year. |
| </span>monday_week_number: MaybeUninit<u8>, |
| <span class="doccomment">/// Week of the year, where week one is the Monday-to-Sunday period containing January 4. |
| </span>iso_week_number: <span class="prelude-ty">Option</span><NonZeroU8>, |
| <span class="doccomment">/// Day of the week. |
| </span>weekday: <span class="prelude-ty">Option</span><Weekday>, |
| <span class="doccomment">/// Day of the year. |
| </span>ordinal: <span class="prelude-ty">Option</span><NonZeroU16>, |
| <span class="doccomment">/// Day of the month. |
| </span>day: <span class="prelude-ty">Option</span><NonZeroU8>, |
| <span class="doccomment">/// Hour within the day. |
| </span>hour_24: MaybeUninit<u8>, |
| <span class="doccomment">/// Hour within the 12-hour period (midnight to noon or vice versa). This is typically used in |
| /// conjunction with AM/PM, which is indicated by the `hour_12_is_pm` field. |
| </span>hour_12: <span class="prelude-ty">Option</span><NonZeroU8>, |
| <span class="doccomment">/// Whether the `hour_12` field indicates a time that "PM". |
| </span>hour_12_is_pm: <span class="prelude-ty">Option</span><bool>, |
| <span class="doccomment">/// Minute within the hour. |
| </span>minute: MaybeUninit<u8>, |
| <span class="doccomment">/// Second within the minute. |
| </span>second: MaybeUninit<u8>, |
| <span class="doccomment">/// Nanosecond within the second. |
| </span>subsecond: MaybeUninit<u32>, |
| <span class="doccomment">/// Whole hours of the UTC offset. |
| </span>offset_hour: MaybeUninit<i8>, |
| <span class="doccomment">/// Minutes within the hour of the UTC offset. |
| </span>offset_minute: MaybeUninit<i8>, |
| <span class="doccomment">/// Seconds within the minute of the UTC offset. |
| </span>offset_second: MaybeUninit<i8>, |
| <span class="doccomment">/// The Unix timestamp in nanoseconds. |
| </span>unix_timestamp_nanos: MaybeUninit<i128>, |
| } |
| |
| <span class="attribute">#[allow(clippy::missing_docs_in_private_items)] |
| </span><span class="kw">impl </span>Parsed { |
| <span class="kw">const </span>YEAR_FLAG: Flag = <span class="number">1 </span><< <span class="number">0</span>; |
| <span class="kw">const </span>YEAR_LAST_TWO_FLAG: Flag = <span class="number">1 </span><< <span class="number">1</span>; |
| <span class="kw">const </span>ISO_YEAR_FLAG: Flag = <span class="number">1 </span><< <span class="number">2</span>; |
| <span class="kw">const </span>ISO_YEAR_LAST_TWO_FLAG: Flag = <span class="number">1 </span><< <span class="number">3</span>; |
| <span class="kw">const </span>SUNDAY_WEEK_NUMBER_FLAG: Flag = <span class="number">1 </span><< <span class="number">4</span>; |
| <span class="kw">const </span>MONDAY_WEEK_NUMBER_FLAG: Flag = <span class="number">1 </span><< <span class="number">5</span>; |
| <span class="kw">const </span>HOUR_24_FLAG: Flag = <span class="number">1 </span><< <span class="number">6</span>; |
| <span class="kw">const </span>MINUTE_FLAG: Flag = <span class="number">1 </span><< <span class="number">7</span>; |
| <span class="kw">const </span>SECOND_FLAG: Flag = <span class="number">1 </span><< <span class="number">8</span>; |
| <span class="kw">const </span>SUBSECOND_FLAG: Flag = <span class="number">1 </span><< <span class="number">9</span>; |
| <span class="kw">const </span>OFFSET_HOUR_FLAG: Flag = <span class="number">1 </span><< <span class="number">10</span>; |
| <span class="kw">const </span>OFFSET_MINUTE_FLAG: Flag = <span class="number">1 </span><< <span class="number">11</span>; |
| <span class="kw">const </span>OFFSET_SECOND_FLAG: Flag = <span class="number">1 </span><< <span class="number">12</span>; |
| <span class="doccomment">/// Indicates whether a leap second is permitted to be parsed. This is required by some |
| /// well-known formats. |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>LEAP_SECOND_ALLOWED_FLAG: Flag = <span class="number">1 </span><< <span class="number">13</span>; |
| <span class="doccomment">/// Indicates whether the `UtcOffset` is negative. This information is obtained when parsing the |
| /// offset hour, but may not otherwise be stored due to "-0" being equivalent to "0". |
| </span><span class="kw">const </span>OFFSET_IS_NEGATIVE_FLAG: Flag = <span class="number">1 </span><< <span class="number">14</span>; |
| <span class="doccomment">/// Does the value at `OFFSET_IS_NEGATIVE_FLAG` have any semantic meaning, or is it just the |
| /// default value? If the latter, the value should be considered to have no meaning. |
| </span><span class="kw">const </span>OFFSET_IS_NEGATIVE_FLAG_IS_INITIALIZED: Flag = <span class="number">1 </span><< <span class="number">15</span>; |
| <span class="kw">const </span>UNIX_TIMESTAMP_NANOS_FLAG: Flag = <span class="number">1 </span><< <span class="number">16</span>; |
| } |
| |
| <span class="kw">impl </span>Parsed { |
| <span class="doccomment">/// Create a new instance of `Parsed` with no information known. |
| </span><span class="kw">pub const fn </span>new() -> <span class="self">Self </span>{ |
| <span class="self">Self </span>{ |
| flags: <span class="number">0</span>, |
| year: MaybeUninit::uninit(), |
| year_last_two: MaybeUninit::uninit(), |
| iso_year: MaybeUninit::uninit(), |
| iso_year_last_two: MaybeUninit::uninit(), |
| month: <span class="prelude-val">None</span>, |
| sunday_week_number: MaybeUninit::uninit(), |
| monday_week_number: MaybeUninit::uninit(), |
| iso_week_number: <span class="prelude-val">None</span>, |
| weekday: <span class="prelude-val">None</span>, |
| ordinal: <span class="prelude-val">None</span>, |
| day: <span class="prelude-val">None</span>, |
| hour_24: MaybeUninit::uninit(), |
| hour_12: <span class="prelude-val">None</span>, |
| hour_12_is_pm: <span class="prelude-val">None</span>, |
| minute: MaybeUninit::uninit(), |
| second: MaybeUninit::uninit(), |
| subsecond: MaybeUninit::uninit(), |
| offset_hour: MaybeUninit::uninit(), |
| offset_minute: MaybeUninit::uninit(), |
| offset_second: MaybeUninit::uninit(), |
| unix_timestamp_nanos: MaybeUninit::uninit(), |
| } |
| } |
| |
| <span class="doccomment">/// Parse a single [`FormatItem`] or [`OwnedFormatItem`], mutating the struct. The remaining |
| /// input is returned as the `Ok` value. |
| /// |
| /// If a [`FormatItem::Optional`] or [`OwnedFormatItem::Optional`] is passed, parsing will not |
| /// fail; the input will be returned as-is if the expected format is not present. |
| </span><span class="kw">pub fn </span>parse_item<<span class="lifetime">'a</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| input: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], |
| item: <span class="kw-2">&</span><span class="kw">impl </span>sealed::AnyFormatItem, |
| ) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8], error::ParseFromDescription> { |
| item.parse_item(<span class="self">self</span>, input) |
| } |
| |
| <span class="doccomment">/// Parse a sequence of [`FormatItem`]s or [`OwnedFormatItem`]s, mutating the struct. The |
| /// remaining input is returned as the `Ok` value. |
| /// |
| /// This method will fail if any of the contained [`FormatItem`]s or [`OwnedFormatItem`]s fail |
| /// to parse. `self` will not be mutated in this instance. |
| </span><span class="kw">pub fn </span>parse_items<<span class="lifetime">'a</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| <span class="kw-2">mut </span>input: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], |
| items: <span class="kw-2">&</span>[<span class="kw">impl </span>sealed::AnyFormatItem], |
| ) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8], error::ParseFromDescription> { |
| <span class="comment">// Make a copy that we can mutate. It will only be set to the user's copy if everything |
| // succeeds. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>this = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="kw">for </span>item <span class="kw">in </span>items { |
| input = this.parse_item(input, item)<span class="question-mark">?</span>; |
| } |
| <span class="kw-2">*</span><span class="self">self </span>= this; |
| <span class="prelude-val">Ok</span>(input) |
| } |
| |
| <span class="doccomment">/// Parse a literal byte sequence. The remaining input is returned as the `Ok` value. |
| </span><span class="kw">pub fn </span>parse_literal<<span class="lifetime">'a</span>>( |
| input: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], |
| literal: <span class="kw-2">&</span>[u8], |
| ) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8], error::ParseFromDescription> { |
| input |
| .strip_prefix(literal) |
| .ok_or(error::ParseFromDescription::InvalidLiteral) |
| } |
| |
| <span class="doccomment">/// Parse a single component, mutating the struct. The remaining input is returned as the `Ok` |
| /// value. |
| </span><span class="kw">pub fn </span>parse_component<<span class="lifetime">'a</span>>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| input: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], |
| component: Component, |
| ) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8], error::ParseFromDescription> { |
| <span class="kw">use </span>error::ParseFromDescription::InvalidComponent; |
| |
| <span class="kw">match </span>component { |
| Component::Day(modifiers) => parse_day(input, modifiers) |
| .and_then(|parsed| parsed.consume_value(|value| <span class="self">self</span>.set_day(value))) |
| .ok_or(InvalidComponent(<span class="string">"day"</span>)), |
| Component::Month(modifiers) => parse_month(input, modifiers) |
| .and_then(|parsed| parsed.consume_value(|value| <span class="self">self</span>.set_month(value))) |
| .ok_or(InvalidComponent(<span class="string">"month"</span>)), |
| Component::Ordinal(modifiers) => parse_ordinal(input, modifiers) |
| .and_then(|parsed| parsed.consume_value(|value| <span class="self">self</span>.set_ordinal(value))) |
| .ok_or(InvalidComponent(<span class="string">"ordinal"</span>)), |
| Component::Weekday(modifiers) => parse_weekday(input, modifiers) |
| .and_then(|parsed| parsed.consume_value(|value| <span class="self">self</span>.set_weekday(value))) |
| .ok_or(InvalidComponent(<span class="string">"weekday"</span>)), |
| Component::WeekNumber(modifiers) => { |
| <span class="kw">let </span>ParsedItem(remaining, value) = |
| parse_week_number(input, modifiers).ok_or(InvalidComponent(<span class="string">"week number"</span>))<span class="question-mark">?</span>; |
| <span class="kw">match </span>modifiers.repr { |
| WeekNumberRepr::Iso => { |
| NonZeroU8::new(value).and_then(|value| <span class="self">self</span>.set_iso_week_number(value)) |
| } |
| WeekNumberRepr::Sunday => <span class="self">self</span>.set_sunday_week_number(value), |
| WeekNumberRepr::Monday => <span class="self">self</span>.set_monday_week_number(value), |
| } |
| .ok_or(InvalidComponent(<span class="string">"week number"</span>))<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(remaining) |
| } |
| Component::Year(modifiers) => { |
| <span class="kw">let </span>ParsedItem(remaining, value) = |
| parse_year(input, modifiers).ok_or(InvalidComponent(<span class="string">"year"</span>))<span class="question-mark">?</span>; |
| <span class="kw">match </span>(modifiers.iso_week_based, modifiers.repr) { |
| (<span class="bool-val">false</span>, YearRepr::Full) => <span class="self">self</span>.set_year(value), |
| (<span class="bool-val">false</span>, YearRepr::LastTwo) => <span class="self">self</span>.set_year_last_two(value <span class="kw">as _</span>), |
| (<span class="bool-val">true</span>, YearRepr::Full) => <span class="self">self</span>.set_iso_year(value), |
| (<span class="bool-val">true</span>, YearRepr::LastTwo) => <span class="self">self</span>.set_iso_year_last_two(value <span class="kw">as _</span>), |
| } |
| .ok_or(InvalidComponent(<span class="string">"year"</span>))<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(remaining) |
| } |
| Component::Hour(modifiers) => { |
| <span class="kw">let </span>ParsedItem(remaining, value) = |
| parse_hour(input, modifiers).ok_or(InvalidComponent(<span class="string">"hour"</span>))<span class="question-mark">?</span>; |
| <span class="kw">if </span>modifiers.is_12_hour_clock { |
| NonZeroU8::new(value).and_then(|value| <span class="self">self</span>.set_hour_12(value)) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.set_hour_24(value) |
| } |
| .ok_or(InvalidComponent(<span class="string">"hour"</span>))<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(remaining) |
| } |
| Component::Minute(modifiers) => parse_minute(input, modifiers) |
| .and_then(|parsed| parsed.consume_value(|value| <span class="self">self</span>.set_minute(value))) |
| .ok_or(InvalidComponent(<span class="string">"minute"</span>)), |
| Component::Period(modifiers) => parse_period(input, modifiers) |
| .and_then(|parsed| { |
| parsed.consume_value(|value| <span class="self">self</span>.set_hour_12_is_pm(value == Period::Pm)) |
| }) |
| .ok_or(InvalidComponent(<span class="string">"period"</span>)), |
| Component::Second(modifiers) => parse_second(input, modifiers) |
| .and_then(|parsed| parsed.consume_value(|value| <span class="self">self</span>.set_second(value))) |
| .ok_or(InvalidComponent(<span class="string">"second"</span>)), |
| Component::Subsecond(modifiers) => parse_subsecond(input, modifiers) |
| .and_then(|parsed| parsed.consume_value(|value| <span class="self">self</span>.set_subsecond(value))) |
| .ok_or(InvalidComponent(<span class="string">"subsecond"</span>)), |
| Component::OffsetHour(modifiers) => parse_offset_hour(input, modifiers) |
| .and_then(|parsed| { |
| parsed.consume_value(|(value, is_negative)| { |
| <span class="self">self</span>.set_flag(<span class="self">Self</span>::OFFSET_IS_NEGATIVE_FLAG_IS_INITIALIZED, <span class="bool-val">true</span>); |
| <span class="self">self</span>.set_flag(<span class="self">Self</span>::OFFSET_IS_NEGATIVE_FLAG, is_negative); |
| <span class="self">self</span>.set_offset_hour(value) |
| }) |
| }) |
| .ok_or(InvalidComponent(<span class="string">"offset hour"</span>)), |
| Component::OffsetMinute(modifiers) => parse_offset_minute(input, modifiers) |
| .and_then(|parsed| { |
| parsed.consume_value(|value| <span class="self">self</span>.set_offset_minute_signed(value)) |
| }) |
| .ok_or(InvalidComponent(<span class="string">"offset minute"</span>)), |
| Component::OffsetSecond(modifiers) => parse_offset_second(input, modifiers) |
| .and_then(|parsed| { |
| parsed.consume_value(|value| <span class="self">self</span>.set_offset_second_signed(value)) |
| }) |
| .ok_or(InvalidComponent(<span class="string">"offset second"</span>)), |
| Component::Ignore(modifiers) => parse_ignore(input, modifiers) |
| .map(ParsedItem::<()>::into_inner) |
| .ok_or(InvalidComponent(<span class="string">"ignore"</span>)), |
| Component::UnixTimestamp(modifiers) => parse_unix_timestamp(input, modifiers) |
| .and_then(|parsed| { |
| parsed.consume_value(|value| <span class="self">self</span>.set_unix_timestamp_nanos(value)) |
| }) |
| .ok_or(InvalidComponent(<span class="string">"unix_timestamp"</span>)), |
| } |
| } |
| |
| <span class="doccomment">/// Get the value of the provided flag. |
| </span><span class="kw">const fn </span>get_flag(<span class="kw-2">&</span><span class="self">self</span>, flag: Flag) -> bool { |
| <span class="self">self</span>.flags & flag == flag |
| } |
| |
| <span class="doccomment">/// Set the value of the provided flag. |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>set_flag(<span class="kw-2">&mut </span><span class="self">self</span>, flag: Flag, value: bool) { |
| <span class="kw">if </span>value { |
| <span class="self">self</span>.flags |= flag; |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.flags &= !flag; |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Generate getters for each of the fields. |
| </span><span class="macro">macro_rules! </span>getters { |
| ($($(@<span class="macro-nonterminal">$flag</span>:ident)<span class="question-mark">? </span><span class="macro-nonterminal">$name</span>:ident: <span class="macro-nonterminal">$ty</span>:ty),+ $(,)<span class="question-mark">?</span>) => {$( |
| <span class="macro">getters!</span>(! $(@<span class="macro-nonterminal">$flag</span>)<span class="question-mark">? </span><span class="macro-nonterminal">$name</span>: <span class="macro-nonterminal">$ty</span>); |
| )<span class="kw-2">*</span>}; |
| (! <span class="macro-nonterminal">$name</span>:ident : <span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="doccomment">/// Obtain the named component. |
| </span><span class="kw">pub const fn </span><span class="macro-nonterminal">$name</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="macro-nonterminal">$ty</span>> { |
| <span class="self">self</span>.<span class="macro-nonterminal">$name |
| </span>} |
| }; |
| (! @<span class="macro-nonterminal">$flag</span>:ident <span class="macro-nonterminal">$name</span>:ident : <span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="doccomment">/// Obtain the named component. |
| </span><span class="kw">pub const fn </span><span class="macro-nonterminal">$name</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="macro-nonterminal">$ty</span>> { |
| <span class="kw">if </span>!<span class="self">self</span>.get_flag(<span class="self">Self</span>::<span class="macro-nonterminal">$flag</span>) { |
| <span class="prelude-val">None |
| </span>} <span class="kw">else </span>{ |
| <span class="comment">// SAFETY: We just checked if the field is present. |
| </span><span class="prelude-val">Some</span>(<span class="kw">unsafe </span>{ <span class="self">self</span>.<span class="macro-nonterminal">$name</span>.assume_init() }) |
| } |
| } |
| }; |
| } |
| |
| <span class="doccomment">/// Getter methods |
| </span><span class="kw">impl </span>Parsed { |
| <span class="macro">getters! </span>{ |
| @YEAR_FLAG year: i32, |
| @YEAR_LAST_TWO_FLAG year_last_two: u8, |
| @ISO_YEAR_FLAG iso_year: i32, |
| @ISO_YEAR_LAST_TWO_FLAG iso_year_last_two: u8, |
| month: Month, |
| @SUNDAY_WEEK_NUMBER_FLAG sunday_week_number: u8, |
| @MONDAY_WEEK_NUMBER_FLAG monday_week_number: u8, |
| iso_week_number: NonZeroU8, |
| weekday: Weekday, |
| ordinal: NonZeroU16, |
| day: NonZeroU8, |
| @HOUR_24_FLAG hour_24: u8, |
| hour_12: NonZeroU8, |
| hour_12_is_pm: bool, |
| @MINUTE_FLAG minute: u8, |
| @SECOND_FLAG second: u8, |
| @SUBSECOND_FLAG subsecond: u32, |
| @OFFSET_HOUR_FLAG offset_hour: i8, |
| @UNIX_TIMESTAMP_NANOS_FLAG unix_timestamp_nanos: i128, |
| } |
| |
| <span class="doccomment">/// Obtain the absolute value of the offset minute. |
| </span><span class="attribute">#[doc(hidden)] |
| #[deprecated(since = <span class="string">"0.3.8"</span>, note = <span class="string">"use `parsed.offset_minute_signed()` instead"</span>)] |
| </span><span class="kw">pub const fn </span>offset_minute(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><u8> { |
| <span class="prelude-val">Some</span>(<span class="macro">const_try_opt!</span>(<span class="self">self</span>.offset_minute_signed()).unsigned_abs()) |
| } |
| |
| <span class="doccomment">/// Obtain the offset minute as an `i8`. |
| </span><span class="kw">pub const fn </span>offset_minute_signed(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><i8> { |
| <span class="kw">if </span>!<span class="self">self</span>.get_flag(<span class="self">Self</span>::OFFSET_MINUTE_FLAG) { |
| <span class="prelude-val">None |
| </span>} <span class="kw">else </span>{ |
| <span class="comment">// SAFETY: We just checked if the field is present. |
| </span><span class="kw">let </span>value = <span class="kw">unsafe </span>{ <span class="self">self</span>.offset_minute.assume_init() }; |
| |
| <span class="kw">if </span><span class="self">self</span>.get_flag(<span class="self">Self</span>::OFFSET_IS_NEGATIVE_FLAG_IS_INITIALIZED) |
| && (value.is_negative() != <span class="self">self</span>.get_flag(<span class="self">Self</span>::OFFSET_IS_NEGATIVE_FLAG)) |
| { |
| <span class="prelude-val">Some</span>(-value) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Some</span>(value) |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Obtain the absolute value of the offset second. |
| </span><span class="attribute">#[doc(hidden)] |
| #[deprecated(since = <span class="string">"0.3.8"</span>, note = <span class="string">"use `parsed.offset_second_signed()` instead"</span>)] |
| </span><span class="kw">pub const fn </span>offset_second(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><u8> { |
| <span class="prelude-val">Some</span>(<span class="macro">const_try_opt!</span>(<span class="self">self</span>.offset_second_signed()).unsigned_abs()) |
| } |
| |
| <span class="doccomment">/// Obtain the offset second as an `i8`. |
| </span><span class="kw">pub const fn </span>offset_second_signed(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><i8> { |
| <span class="kw">if </span>!<span class="self">self</span>.get_flag(<span class="self">Self</span>::OFFSET_SECOND_FLAG) { |
| <span class="prelude-val">None |
| </span>} <span class="kw">else </span>{ |
| <span class="comment">// SAFETY: We just checked if the field is present. |
| </span><span class="kw">let </span>value = <span class="kw">unsafe </span>{ <span class="self">self</span>.offset_second.assume_init() }; |
| |
| <span class="kw">if </span><span class="self">self</span>.get_flag(<span class="self">Self</span>::OFFSET_IS_NEGATIVE_FLAG_IS_INITIALIZED) |
| && (value.is_negative() != <span class="self">self</span>.get_flag(<span class="self">Self</span>::OFFSET_IS_NEGATIVE_FLAG)) |
| { |
| <span class="prelude-val">Some</span>(-value) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Some</span>(value) |
| } |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Generate setters for each of the fields. |
| /// |
| /// This macro should only be used for fields where the value is not validated beyond its type. |
| </span><span class="macro">macro_rules! </span>setters { |
| ($($(@<span class="macro-nonterminal">$flag</span>:ident)<span class="question-mark">? </span><span class="macro-nonterminal">$setter_name</span>:ident <span class="macro-nonterminal">$name</span>:ident: <span class="macro-nonterminal">$ty</span>:ty),+ $(,)<span class="question-mark">?</span>) => {$( |
| <span class="macro">setters!</span>(! $(@<span class="macro-nonterminal">$flag</span>)<span class="question-mark">? </span><span class="macro-nonterminal">$setter_name $name</span>: <span class="macro-nonterminal">$ty</span>); |
| )<span class="kw-2">*</span>}; |
| (! <span class="macro-nonterminal">$setter_name</span>:ident <span class="macro-nonterminal">$name</span>:ident : <span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="doccomment">/// Set the named component. |
| </span><span class="kw">pub fn </span><span class="macro-nonterminal">$setter_name</span>(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="macro-nonterminal">$ty</span>) -> <span class="prelude-ty">Option</span><()> { |
| <span class="self">self</span>.<span class="macro-nonterminal">$name </span>= <span class="prelude-val">Some</span>(value); |
| <span class="prelude-val">Some</span>(()) |
| } |
| }; |
| (! @<span class="macro-nonterminal">$flag</span>:ident <span class="macro-nonterminal">$setter_name</span>:ident <span class="macro-nonterminal">$name</span>:ident : <span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="doccomment">/// Set the named component. |
| </span><span class="kw">pub fn </span><span class="macro-nonterminal">$setter_name</span>(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="macro-nonterminal">$ty</span>) -> <span class="prelude-ty">Option</span><()> { |
| <span class="self">self</span>.<span class="macro-nonterminal">$name </span>= MaybeUninit::new(value); |
| <span class="self">self</span>.set_flag(<span class="self">Self</span>::<span class="macro-nonterminal">$flag</span>, <span class="bool-val">true</span>); |
| <span class="prelude-val">Some</span>(()) |
| } |
| }; |
| } |
| |
| <span class="doccomment">/// Setter methods |
| /// |
| /// All setters return `Option<()>`, which is `Some` if the value was set, and `None` if not. The |
| /// setters _may_ fail if the value is invalid, though behavior is not guaranteed. |
| </span><span class="kw">impl </span>Parsed { |
| <span class="macro">setters! </span>{ |
| @YEAR_FLAG set_year year: i32, |
| @YEAR_LAST_TWO_FLAG set_year_last_two year_last_two: u8, |
| @ISO_YEAR_FLAG set_iso_year iso_year: i32, |
| @ISO_YEAR_LAST_TWO_FLAG set_iso_year_last_two iso_year_last_two: u8, |
| set_month month: Month, |
| @SUNDAY_WEEK_NUMBER_FLAG set_sunday_week_number sunday_week_number: u8, |
| @MONDAY_WEEK_NUMBER_FLAG set_monday_week_number monday_week_number: u8, |
| set_iso_week_number iso_week_number: NonZeroU8, |
| set_weekday weekday: Weekday, |
| set_ordinal ordinal: NonZeroU16, |
| set_day day: NonZeroU8, |
| @HOUR_24_FLAG set_hour_24 hour_24: u8, |
| set_hour_12 hour_12: NonZeroU8, |
| set_hour_12_is_pm hour_12_is_pm: bool, |
| @MINUTE_FLAG set_minute minute: u8, |
| @SECOND_FLAG set_second second: u8, |
| @SUBSECOND_FLAG set_subsecond subsecond: u32, |
| @OFFSET_HOUR_FLAG set_offset_hour offset_hour: i8, |
| @UNIX_TIMESTAMP_NANOS_FLAG set_unix_timestamp_nanos unix_timestamp_nanos: i128, |
| } |
| |
| <span class="doccomment">/// Set the named component. |
| </span><span class="attribute">#[doc(hidden)] |
| #[deprecated( |
| since = <span class="string">"0.3.8"</span>, |
| note = <span class="string">"use `parsed.set_offset_minute_signed()` instead" |
| </span>)] |
| </span><span class="kw">pub fn </span>set_offset_minute(<span class="kw-2">&mut </span><span class="self">self</span>, value: u8) -> <span class="prelude-ty">Option</span><()> { |
| <span class="kw">if </span>value > i8::MAX <span class="kw">as </span>u8 { |
| <span class="prelude-val">None |
| </span>} <span class="kw">else </span>{ |
| <span class="self">self</span>.set_offset_minute_signed(value <span class="kw">as _</span>) |
| } |
| } |
| |
| <span class="doccomment">/// Set the `offset_minute` component. |
| </span><span class="kw">pub fn </span>set_offset_minute_signed(<span class="kw-2">&mut </span><span class="self">self</span>, value: i8) -> <span class="prelude-ty">Option</span><()> { |
| <span class="self">self</span>.offset_minute = MaybeUninit::new(value); |
| <span class="self">self</span>.set_flag(<span class="self">Self</span>::OFFSET_MINUTE_FLAG, <span class="bool-val">true</span>); |
| <span class="prelude-val">Some</span>(()) |
| } |
| |
| <span class="doccomment">/// Set the named component. |
| </span><span class="attribute">#[doc(hidden)] |
| #[deprecated( |
| since = <span class="string">"0.3.8"</span>, |
| note = <span class="string">"use `parsed.set_offset_second_signed()` instead" |
| </span>)] |
| </span><span class="kw">pub fn </span>set_offset_second(<span class="kw-2">&mut </span><span class="self">self</span>, value: u8) -> <span class="prelude-ty">Option</span><()> { |
| <span class="kw">if </span>value > i8::MAX <span class="kw">as </span>u8 { |
| <span class="prelude-val">None |
| </span>} <span class="kw">else </span>{ |
| <span class="self">self</span>.set_offset_second_signed(value <span class="kw">as _</span>) |
| } |
| } |
| |
| <span class="doccomment">/// Set the `offset_second` component. |
| </span><span class="kw">pub fn </span>set_offset_second_signed(<span class="kw-2">&mut </span><span class="self">self</span>, value: i8) -> <span class="prelude-ty">Option</span><()> { |
| <span class="self">self</span>.offset_second = MaybeUninit::new(value); |
| <span class="self">self</span>.set_flag(<span class="self">Self</span>::OFFSET_SECOND_FLAG, <span class="bool-val">true</span>); |
| <span class="prelude-val">Some</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Generate build methods for each of the fields. |
| /// |
| /// This macro should only be used for fields where the value is not validated beyond its type. |
| </span><span class="macro">macro_rules! </span>builders { |
| ($($(@<span class="macro-nonterminal">$flag</span>:ident)<span class="question-mark">? </span><span class="macro-nonterminal">$builder_name</span>:ident <span class="macro-nonterminal">$name</span>:ident: <span class="macro-nonterminal">$ty</span>:ty),+ $(,)<span class="question-mark">?</span>) => {$( |
| <span class="macro">builders!</span>(! $(@<span class="macro-nonterminal">$flag</span>)<span class="question-mark">? </span><span class="macro-nonterminal">$builder_name $name</span>: <span class="macro-nonterminal">$ty</span>); |
| )<span class="kw-2">*</span>}; |
| (! <span class="macro-nonterminal">$builder_name</span>:ident <span class="macro-nonterminal">$name</span>:ident : <span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="doccomment">/// Set the named component and return `self`. |
| </span><span class="kw">pub const fn </span><span class="macro-nonterminal">$builder_name</span>(<span class="kw-2">mut </span><span class="self">self</span>, value: <span class="macro-nonterminal">$ty</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="self">self</span>.<span class="macro-nonterminal">$name </span>= <span class="prelude-val">Some</span>(value); |
| <span class="prelude-val">Some</span>(<span class="self">self</span>) |
| } |
| }; |
| (! @<span class="macro-nonterminal">$flag</span>:ident <span class="macro-nonterminal">$builder_name</span>:ident <span class="macro-nonterminal">$name</span>:ident : <span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="doccomment">/// Set the named component and return `self`. |
| </span><span class="kw">pub const fn </span><span class="macro-nonterminal">$builder_name</span>(<span class="kw-2">mut </span><span class="self">self</span>, value: <span class="macro-nonterminal">$ty</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="self">self</span>.<span class="macro-nonterminal">$name </span>= MaybeUninit::new(value); |
| <span class="self">self</span>.flags |= <span class="self">Self</span>::<span class="macro-nonterminal">$flag</span>; |
| <span class="prelude-val">Some</span>(<span class="self">self</span>) |
| } |
| }; |
| } |
| |
| <span class="doccomment">/// Builder methods |
| /// |
| /// All builder methods return `Option<Self>`, which is `Some` if the value was set, and `None` if |
| /// not. The builder methods _may_ fail if the value is invalid, though behavior is not guaranteed. |
| </span><span class="kw">impl </span>Parsed { |
| <span class="macro">builders! </span>{ |
| @YEAR_FLAG with_year year: i32, |
| @YEAR_LAST_TWO_FLAG with_year_last_two year_last_two: u8, |
| @ISO_YEAR_FLAG with_iso_year iso_year: i32, |
| @ISO_YEAR_LAST_TWO_FLAG with_iso_year_last_two iso_year_last_two: u8, |
| with_month month: Month, |
| @SUNDAY_WEEK_NUMBER_FLAG with_sunday_week_number sunday_week_number: u8, |
| @MONDAY_WEEK_NUMBER_FLAG with_monday_week_number monday_week_number: u8, |
| with_iso_week_number iso_week_number: NonZeroU8, |
| with_weekday weekday: Weekday, |
| with_ordinal ordinal: NonZeroU16, |
| with_day day: NonZeroU8, |
| @HOUR_24_FLAG with_hour_24 hour_24: u8, |
| with_hour_12 hour_12: NonZeroU8, |
| with_hour_12_is_pm hour_12_is_pm: bool, |
| @MINUTE_FLAG with_minute minute: u8, |
| @SECOND_FLAG with_second second: u8, |
| @SUBSECOND_FLAG with_subsecond subsecond: u32, |
| @OFFSET_HOUR_FLAG with_offset_hour offset_hour: i8, |
| @UNIX_TIMESTAMP_NANOS_FLAG with_unix_timestamp_nanos unix_timestamp_nanos: i128, |
| } |
| |
| <span class="doccomment">/// Set the named component and return `self`. |
| </span><span class="attribute">#[doc(hidden)] |
| #[deprecated( |
| since = <span class="string">"0.3.8"</span>, |
| note = <span class="string">"use `parsed.with_offset_minute_signed()` instead" |
| </span>)] |
| </span><span class="kw">pub const fn </span>with_offset_minute(<span class="self">self</span>, value: u8) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="kw">if </span>value > i8::MAX <span class="kw">as </span>u8 { |
| <span class="prelude-val">None |
| </span>} <span class="kw">else </span>{ |
| <span class="self">self</span>.with_offset_minute_signed(value <span class="kw">as _</span>) |
| } |
| } |
| |
| <span class="doccomment">/// Set the `offset_minute` component and return `self`. |
| </span><span class="kw">pub const fn </span>with_offset_minute_signed(<span class="kw-2">mut </span><span class="self">self</span>, value: i8) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="self">self</span>.offset_minute = MaybeUninit::new(value); |
| <span class="self">self</span>.flags |= <span class="self">Self</span>::OFFSET_MINUTE_FLAG; |
| <span class="prelude-val">Some</span>(<span class="self">self</span>) |
| } |
| |
| <span class="doccomment">/// Set the named component and return `self`. |
| </span><span class="attribute">#[doc(hidden)] |
| #[deprecated( |
| since = <span class="string">"0.3.8"</span>, |
| note = <span class="string">"use `parsed.with_offset_second_signed()` instead" |
| </span>)] |
| </span><span class="kw">pub const fn </span>with_offset_second(<span class="self">self</span>, value: u8) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="kw">if </span>value > i8::MAX <span class="kw">as </span>u8 { |
| <span class="prelude-val">None |
| </span>} <span class="kw">else </span>{ |
| <span class="self">self</span>.with_offset_second_signed(value <span class="kw">as _</span>) |
| } |
| } |
| |
| <span class="doccomment">/// Set the `offset_second` component and return `self`. |
| </span><span class="kw">pub const fn </span>with_offset_second_signed(<span class="kw-2">mut </span><span class="self">self</span>, value: i8) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <span class="self">self</span>.offset_second = MaybeUninit::new(value); |
| <span class="self">self</span>.flags |= <span class="self">Self</span>::OFFSET_SECOND_FLAG; |
| <span class="prelude-val">Some</span>(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>TryFrom<Parsed> <span class="kw">for </span>Date { |
| <span class="kw">type </span>Error = error::TryFromParsed; |
| |
| <span class="kw">fn </span>try_from(parsed: Parsed) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, <span class="self">Self</span>::Error> { |
| <span class="doccomment">/// Match on the components that need to be present. |
| </span><span class="macro">macro_rules! </span>match_ { |
| (<span class="kw">_ </span>=> <span class="macro-nonterminal">$catch_all</span>:expr $(,)<span class="question-mark">?</span>) => { |
| <span class="macro-nonterminal">$catch_all |
| </span>}; |
| (($(<span class="macro-nonterminal">$name</span>:ident),* $(,)<span class="question-mark">?</span>) => <span class="macro-nonterminal">$arm</span>:expr, $(<span class="macro-nonterminal">$rest</span>:tt)<span class="kw-2">*</span>) => { |
| <span class="kw">if let </span>($(<span class="prelude-val">Some</span>(<span class="macro-nonterminal">$name</span>)),<span class="kw-2">*</span>) = ($(parsed.<span class="macro-nonterminal">$name</span>()),<span class="kw-2">*</span>) { |
| <span class="macro-nonterminal">$arm |
| </span>} <span class="kw">else </span>{ |
| <span class="macro">match_!</span>($(<span class="macro-nonterminal">$rest</span>)<span class="kw-2">*</span>) |
| } |
| }; |
| } |
| |
| <span class="doccomment">/// Get the value needed to adjust the ordinal day for Sunday and Monday-based week |
| /// numbering. |
| </span><span class="kw">const fn </span>adjustment(year: i32) -> i16 { |
| <span class="kw">match </span>Date::__from_ordinal_date_unchecked(year, <span class="number">1</span>).weekday() { |
| Weekday::Monday => <span class="number">7</span>, |
| Weekday::Tuesday => <span class="number">1</span>, |
| Weekday::Wednesday => <span class="number">2</span>, |
| Weekday::Thursday => <span class="number">3</span>, |
| Weekday::Friday => <span class="number">4</span>, |
| Weekday::Saturday => <span class="number">5</span>, |
| Weekday::Sunday => <span class="number">6</span>, |
| } |
| } |
| |
| <span class="comment">// TODO Only the basics have been covered. There are many other valid values that are not |
| // currently constructed from the information known. |
| |
| </span><span class="macro">match_! </span>{ |
| (year, ordinal) => <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_ordinal_date(year, ordinal.get())<span class="question-mark">?</span>), |
| (year, month, day) => <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_calendar_date(year, month, day.get())<span class="question-mark">?</span>), |
| (iso_year, iso_week_number, weekday) => <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_iso_week_date( |
| iso_year, |
| iso_week_number.get(), |
| weekday, |
| )<span class="question-mark">?</span>), |
| (year, sunday_week_number, weekday) => <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_ordinal_date( |
| year, |
| (sunday_week_number <span class="kw">as </span>i16 * <span class="number">7 </span>+ weekday.number_days_from_sunday() <span class="kw">as </span>i16 |
| - adjustment(year) |
| + <span class="number">1</span>) <span class="kw">as </span>u16, |
| )<span class="question-mark">?</span>), |
| (year, monday_week_number, weekday) => <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_ordinal_date( |
| year, |
| (monday_week_number <span class="kw">as </span>i16 * <span class="number">7 </span>+ weekday.number_days_from_monday() <span class="kw">as </span>i16 |
| - adjustment(year) |
| + <span class="number">1</span>) <span class="kw">as </span>u16, |
| )<span class="question-mark">?</span>), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(InsufficientInformation), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>TryFrom<Parsed> <span class="kw">for </span>Time { |
| <span class="kw">type </span>Error = error::TryFromParsed; |
| |
| <span class="kw">fn </span>try_from(parsed: Parsed) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, <span class="self">Self</span>::Error> { |
| <span class="kw">let </span>hour = <span class="kw">match </span>(parsed.hour_24(), parsed.hour_12(), parsed.hour_12_is_pm()) { |
| (<span class="prelude-val">Some</span>(hour), <span class="kw">_</span>, <span class="kw">_</span>) => hour, |
| (<span class="kw">_</span>, <span class="prelude-val">Some</span>(hour), <span class="prelude-val">Some</span>(<span class="bool-val">false</span>)) <span class="kw">if </span>hour.get() == <span class="number">12 </span>=> <span class="number">0</span>, |
| (<span class="kw">_</span>, <span class="prelude-val">Some</span>(hour), <span class="prelude-val">Some</span>(<span class="bool-val">true</span>)) <span class="kw">if </span>hour.get() == <span class="number">12 </span>=> <span class="number">12</span>, |
| (<span class="kw">_</span>, <span class="prelude-val">Some</span>(hour), <span class="prelude-val">Some</span>(<span class="bool-val">false</span>)) => hour.get(), |
| (<span class="kw">_</span>, <span class="prelude-val">Some</span>(hour), <span class="prelude-val">Some</span>(<span class="bool-val">true</span>)) => hour.get() + <span class="number">12</span>, |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(InsufficientInformation), |
| }; |
| <span class="kw">if </span>parsed.hour_24().is_none() |
| && parsed.hour_12().is_some() |
| && parsed.hour_12_is_pm().is_some() |
| && parsed.minute().is_none() |
| && parsed.second().is_none() |
| && parsed.subsecond().is_none() |
| { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_hms_nano(hour, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>)<span class="question-mark">?</span>); |
| } |
| <span class="kw">let </span>minute = parsed.minute().ok_or(InsufficientInformation)<span class="question-mark">?</span>; |
| <span class="kw">let </span>second = parsed.second().unwrap_or(<span class="number">0</span>); |
| <span class="kw">let </span>subsecond = parsed.subsecond().unwrap_or(<span class="number">0</span>); |
| <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_hms_nano(hour, minute, second, subsecond)<span class="question-mark">?</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>TryFrom<Parsed> <span class="kw">for </span>UtcOffset { |
| <span class="kw">type </span>Error = error::TryFromParsed; |
| |
| <span class="kw">fn </span>try_from(parsed: Parsed) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, <span class="self">Self</span>::Error> { |
| <span class="kw">let </span>hour = parsed.offset_hour().ok_or(InsufficientInformation)<span class="question-mark">?</span>; |
| <span class="kw">let </span>minute = parsed.offset_minute_signed().unwrap_or(<span class="number">0</span>); |
| <span class="kw">let </span>second = parsed.offset_second_signed().unwrap_or(<span class="number">0</span>); |
| |
| <span class="self">Self</span>::from_hms(hour, minute, second).map_err(|<span class="kw-2">mut </span>err| { |
| <span class="comment">// Provide the user a more accurate error. |
| </span><span class="kw">if </span>err.name == <span class="string">"hours" </span>{ |
| err.name = <span class="string">"offset hour"</span>; |
| } <span class="kw">else if </span>err.name == <span class="string">"minutes" </span>{ |
| err.name = <span class="string">"offset minute"</span>; |
| } <span class="kw">else if </span>err.name == <span class="string">"seconds" </span>{ |
| err.name = <span class="string">"offset second"</span>; |
| } |
| err.into() |
| }) |
| } |
| } |
| |
| <span class="kw">impl </span>TryFrom<Parsed> <span class="kw">for </span>PrimitiveDateTime { |
| <span class="kw">type </span>Error = <DateTime<offset_kind::None> <span class="kw">as </span>TryFrom<Parsed>>::Error; |
| |
| <span class="kw">fn </span>try_from(parsed: Parsed) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, <span class="self">Self</span>::Error> { |
| parsed.try_into().map(<span class="self">Self</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>TryFrom<Parsed> <span class="kw">for </span>OffsetDateTime { |
| <span class="kw">type </span>Error = <DateTime<offset_kind::Fixed> <span class="kw">as </span>TryFrom<Parsed>>::Error; |
| |
| <span class="kw">fn </span>try_from(parsed: Parsed) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, <span class="self">Self</span>::Error> { |
| parsed.try_into().map(<span class="self">Self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><O: MaybeOffset> TryFrom<Parsed> <span class="kw">for </span>DateTime<O> { |
| <span class="kw">type </span>Error = error::TryFromParsed; |
| |
| <span class="attribute">#[allow(clippy::unwrap_in_result)] </span><span class="comment">// We know the values are valid. |
| </span><span class="kw">fn </span>try_from(<span class="kw-2">mut </span>parsed: Parsed) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, <span class="self">Self</span>::Error> { |
| <span class="kw">if </span>O::HAS_LOGICAL_OFFSET { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(timestamp) = parsed.unix_timestamp_nanos() { |
| <span class="kw">let </span>DateTime { date, time, offset } = |
| DateTime::<offset_kind::Fixed>::from_unix_timestamp_nanos(timestamp)<span class="question-mark">?</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="self">Self </span>{ |
| date, |
| time, |
| offset: maybe_offset_from_offset::<O>(offset), |
| }); |
| } |
| } |
| |
| <span class="comment">// Some well-known formats explicitly allow leap seconds. We don't currently support them, |
| // so treat it as the nearest preceding moment that can be represented. Because leap seconds |
| // always fall at the end of a month UTC, reject any that are at other times. |
| </span><span class="kw">let </span>leap_second_input = |
| <span class="kw">if </span>parsed.get_flag(Parsed::LEAP_SECOND_ALLOWED_FLAG) && parsed.second() == <span class="prelude-val">Some</span>(<span class="number">60</span>) { |
| parsed.set_second(<span class="number">59</span>).expect(<span class="string">"59 is a valid second"</span>); |
| parsed |
| .set_subsecond(<span class="number">999_999_999</span>) |
| .expect(<span class="string">"999_999_999 is a valid subsecond"</span>); |
| <span class="bool-val">true |
| </span>} <span class="kw">else </span>{ |
| <span class="bool-val">false |
| </span>}; |
| |
| <span class="kw">let </span>dt = <span class="self">Self </span>{ |
| date: Date::try_from(parsed)<span class="question-mark">?</span>, |
| time: Time::try_from(parsed)<span class="question-mark">?</span>, |
| offset: O::try_from_parsed(parsed)<span class="question-mark">?</span>, |
| }; |
| |
| <span class="kw">if </span>leap_second_input && !dt.is_valid_leap_second_stand_in() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(error::TryFromParsed::ComponentRange( |
| error::ComponentRange { |
| name: <span class="string">"second"</span>, |
| minimum: <span class="number">0</span>, |
| maximum: <span class="number">59</span>, |
| value: <span class="number">60</span>, |
| conditional_range: <span class="bool-val">true</span>, |
| }, |
| )); |
| } |
| <span class="prelude-val">Ok</span>(dt) |
| } |
| } |
| </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> |