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| </pre><pre class="rust"><code><span class="doccomment">//! Serde visitor for various types. |
| |
| </span><span class="kw">use </span>core::fmt; |
| <span class="kw">use </span>core::marker::PhantomData; |
| |
| <span class="kw">use </span>serde::de; |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">use </span>serde::Deserializer; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">use super</span>::{ |
| DATE_FORMAT, OFFSET_DATE_TIME_FORMAT, PRIMITIVE_DATE_TIME_FORMAT, TIME_FORMAT, |
| UTC_OFFSET_FORMAT, |
| }; |
| <span class="kw">use </span><span class="kw">crate</span>::error::ComponentRange; |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::format_description::well_known::<span class="kw-2">*</span>; |
| <span class="kw">use crate</span>::{Date, Duration, Month, OffsetDateTime, PrimitiveDateTime, Time, UtcOffset, Weekday}; |
| |
| <span class="doccomment">/// A serde visitor for various types. |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">struct </span>Visitor<T: <span class="question-mark">?</span>Sized>(<span class="kw">pub</span>(<span class="kw">super</span>) PhantomData<T>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<Date> { |
| <span class="kw">type </span>Value = Date; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="string">"a `Date`"</span>) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><Date, E> { |
| Date::parse(value, <span class="kw-2">&</span>DATE_FORMAT).map_err(E::custom) |
| } |
| |
| <span class="kw">fn </span>visit_seq<A: de::SeqAccess<<span class="lifetime">'a</span>>>(<span class="self">self</span>, <span class="kw-2">mut </span>seq: A) -> <span class="prelude-ty">Result</span><Date, A::Error> { |
| <span class="kw">let </span>year = <span class="macro">item!</span>(seq, <span class="string">"year"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>ordinal = <span class="macro">item!</span>(seq, <span class="string">"day of year"</span>)<span class="question-mark">?</span>; |
| Date::from_ordinal_date(year, ordinal).map_err(ComponentRange::into_de_error) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<Duration> { |
| <span class="kw">type </span>Value = Duration; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="string">"a `Duration`"</span>) |
| } |
| |
| <span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><Duration, E> { |
| <span class="kw">let </span>(seconds, nanoseconds) = value.split_once(<span class="string">'.'</span>).ok_or_else(|| { |
| de::Error::invalid_value(de::Unexpected::Str(value), <span class="kw-2">&</span><span class="string">"a decimal point"</span>) |
| })<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>seconds = seconds |
| .parse() |
| .map_err(|<span class="kw">_</span>| de::Error::invalid_value(de::Unexpected::Str(seconds), <span class="kw-2">&</span><span class="string">"seconds"</span>))<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>nanoseconds = nanoseconds.parse().map_err(|<span class="kw">_</span>| { |
| de::Error::invalid_value(de::Unexpected::Str(nanoseconds), <span class="kw-2">&</span><span class="string">"nanoseconds"</span>) |
| })<span class="question-mark">?</span>; |
| |
| <span class="kw">if </span>seconds < <span class="number">0 </span>{ |
| nanoseconds <span class="kw-2">*</span>= -<span class="number">1</span>; |
| } |
| |
| <span class="prelude-val">Ok</span>(Duration::new(seconds, nanoseconds)) |
| } |
| |
| <span class="kw">fn </span>visit_seq<A: de::SeqAccess<<span class="lifetime">'a</span>>>(<span class="self">self</span>, <span class="kw-2">mut </span>seq: A) -> <span class="prelude-ty">Result</span><Duration, A::Error> { |
| <span class="kw">let </span>seconds = <span class="macro">item!</span>(seq, <span class="string">"seconds"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>nanoseconds = <span class="macro">item!</span>(seq, <span class="string">"nanoseconds"</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(Duration::new(seconds, nanoseconds)) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<OffsetDateTime> { |
| <span class="kw">type </span>Value = OffsetDateTime; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="string">"an `OffsetDateTime`"</span>) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><OffsetDateTime, E> { |
| OffsetDateTime::parse(value, <span class="kw-2">&</span>OFFSET_DATE_TIME_FORMAT).map_err(E::custom) |
| } |
| |
| <span class="kw">fn </span>visit_seq<A: de::SeqAccess<<span class="lifetime">'a</span>>>(<span class="self">self</span>, <span class="kw-2">mut </span>seq: A) -> <span class="prelude-ty">Result</span><OffsetDateTime, A::Error> { |
| <span class="kw">let </span>year = <span class="macro">item!</span>(seq, <span class="string">"year"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>ordinal = <span class="macro">item!</span>(seq, <span class="string">"day of year"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>hour = <span class="macro">item!</span>(seq, <span class="string">"hour"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>minute = <span class="macro">item!</span>(seq, <span class="string">"minute"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>second = <span class="macro">item!</span>(seq, <span class="string">"second"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>nanosecond = <span class="macro">item!</span>(seq, <span class="string">"nanosecond"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>offset_hours = <span class="macro">item!</span>(seq, <span class="string">"offset hours"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>offset_minutes = <span class="macro">item!</span>(seq, <span class="string">"offset minutes"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>offset_seconds = <span class="macro">item!</span>(seq, <span class="string">"offset seconds"</span>)<span class="question-mark">?</span>; |
| |
| Date::from_ordinal_date(year, ordinal) |
| .and_then(|date| date.with_hms_nano(hour, minute, second, nanosecond)) |
| .and_then(|datetime| { |
| UtcOffset::from_hms(offset_hours, offset_minutes, offset_seconds) |
| .map(|offset| datetime.assume_offset(offset)) |
| }) |
| .map_err(ComponentRange::into_de_error) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<PrimitiveDateTime> { |
| <span class="kw">type </span>Value = PrimitiveDateTime; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="string">"a `PrimitiveDateTime`"</span>) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><PrimitiveDateTime, E> { |
| PrimitiveDateTime::parse(value, <span class="kw-2">&</span>PRIMITIVE_DATE_TIME_FORMAT).map_err(E::custom) |
| } |
| |
| <span class="kw">fn </span>visit_seq<A: de::SeqAccess<<span class="lifetime">'a</span>>>(<span class="self">self</span>, <span class="kw-2">mut </span>seq: A) -> <span class="prelude-ty">Result</span><PrimitiveDateTime, A::Error> { |
| <span class="kw">let </span>year = <span class="macro">item!</span>(seq, <span class="string">"year"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>ordinal = <span class="macro">item!</span>(seq, <span class="string">"day of year"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>hour = <span class="macro">item!</span>(seq, <span class="string">"hour"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>minute = <span class="macro">item!</span>(seq, <span class="string">"minute"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>second = <span class="macro">item!</span>(seq, <span class="string">"second"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>nanosecond = <span class="macro">item!</span>(seq, <span class="string">"nanosecond"</span>)<span class="question-mark">?</span>; |
| |
| Date::from_ordinal_date(year, ordinal) |
| .and_then(|date| date.with_hms_nano(hour, minute, second, nanosecond)) |
| .map_err(ComponentRange::into_de_error) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<Time> { |
| <span class="kw">type </span>Value = Time; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="string">"a `Time`"</span>) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><Time, E> { |
| Time::parse(value, <span class="kw-2">&</span>TIME_FORMAT).map_err(E::custom) |
| } |
| |
| <span class="kw">fn </span>visit_seq<A: de::SeqAccess<<span class="lifetime">'a</span>>>(<span class="self">self</span>, <span class="kw-2">mut </span>seq: A) -> <span class="prelude-ty">Result</span><Time, A::Error> { |
| <span class="kw">let </span>hour = <span class="macro">item!</span>(seq, <span class="string">"hour"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>minute = <span class="macro">item!</span>(seq, <span class="string">"minute"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>second = <span class="macro">item!</span>(seq, <span class="string">"second"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>nanosecond = <span class="macro">item!</span>(seq, <span class="string">"nanosecond"</span>)<span class="question-mark">?</span>; |
| |
| Time::from_hms_nano(hour, minute, second, nanosecond).map_err(ComponentRange::into_de_error) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<UtcOffset> { |
| <span class="kw">type </span>Value = UtcOffset; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="string">"a `UtcOffset`"</span>) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><UtcOffset, E> { |
| UtcOffset::parse(value, <span class="kw-2">&</span>UTC_OFFSET_FORMAT).map_err(E::custom) |
| } |
| |
| <span class="kw">fn </span>visit_seq<A: de::SeqAccess<<span class="lifetime">'a</span>>>(<span class="self">self</span>, <span class="kw-2">mut </span>seq: A) -> <span class="prelude-ty">Result</span><UtcOffset, A::Error> { |
| <span class="kw">let </span>hours = <span class="macro">item!</span>(seq, <span class="string">"offset hours"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>minutes = <span class="macro">item!</span>(seq, <span class="string">"offset minutes"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>seconds = <span class="macro">item!</span>(seq, <span class="string">"offset seconds"</span>)<span class="question-mark">?</span>; |
| |
| UtcOffset::from_hms(hours, minutes, seconds).map_err(ComponentRange::into_de_error) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<Weekday> { |
| <span class="kw">type </span>Value = Weekday; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="string">"a `Weekday`"</span>) |
| } |
| |
| <span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><Weekday, E> { |
| <span class="kw">match </span>value { |
| <span class="string">"Monday" </span>=> <span class="prelude-val">Ok</span>(Weekday::Monday), |
| <span class="string">"Tuesday" </span>=> <span class="prelude-val">Ok</span>(Weekday::Tuesday), |
| <span class="string">"Wednesday" </span>=> <span class="prelude-val">Ok</span>(Weekday::Wednesday), |
| <span class="string">"Thursday" </span>=> <span class="prelude-val">Ok</span>(Weekday::Thursday), |
| <span class="string">"Friday" </span>=> <span class="prelude-val">Ok</span>(Weekday::Friday), |
| <span class="string">"Saturday" </span>=> <span class="prelude-val">Ok</span>(Weekday::Saturday), |
| <span class="string">"Sunday" </span>=> <span class="prelude-val">Ok</span>(Weekday::Sunday), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(E::invalid_value(de::Unexpected::Str(value), <span class="kw-2">&</span><span class="string">"a `Weekday`"</span>)), |
| } |
| } |
| |
| <span class="kw">fn </span>visit_u64<E: de::Error>(<span class="self">self</span>, value: u64) -> <span class="prelude-ty">Result</span><Weekday, E> { |
| <span class="kw">match </span>value { |
| <span class="number">1 </span>=> <span class="prelude-val">Ok</span>(Weekday::Monday), |
| <span class="number">2 </span>=> <span class="prelude-val">Ok</span>(Weekday::Tuesday), |
| <span class="number">3 </span>=> <span class="prelude-val">Ok</span>(Weekday::Wednesday), |
| <span class="number">4 </span>=> <span class="prelude-val">Ok</span>(Weekday::Thursday), |
| <span class="number">5 </span>=> <span class="prelude-val">Ok</span>(Weekday::Friday), |
| <span class="number">6 </span>=> <span class="prelude-val">Ok</span>(Weekday::Saturday), |
| <span class="number">7 </span>=> <span class="prelude-val">Ok</span>(Weekday::Sunday), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(E::invalid_value( |
| de::Unexpected::Unsigned(value), |
| <span class="kw-2">&</span><span class="string">"a value in the range 1..=7"</span>, |
| )), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<Month> { |
| <span class="kw">type </span>Value = Month; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="string">"a `Month`"</span>) |
| } |
| |
| <span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><Month, E> { |
| <span class="kw">match </span>value { |
| <span class="string">"January" </span>=> <span class="prelude-val">Ok</span>(Month::January), |
| <span class="string">"February" </span>=> <span class="prelude-val">Ok</span>(Month::February), |
| <span class="string">"March" </span>=> <span class="prelude-val">Ok</span>(Month::March), |
| <span class="string">"April" </span>=> <span class="prelude-val">Ok</span>(Month::April), |
| <span class="string">"May" </span>=> <span class="prelude-val">Ok</span>(Month::May), |
| <span class="string">"June" </span>=> <span class="prelude-val">Ok</span>(Month::June), |
| <span class="string">"July" </span>=> <span class="prelude-val">Ok</span>(Month::July), |
| <span class="string">"August" </span>=> <span class="prelude-val">Ok</span>(Month::August), |
| <span class="string">"September" </span>=> <span class="prelude-val">Ok</span>(Month::September), |
| <span class="string">"October" </span>=> <span class="prelude-val">Ok</span>(Month::October), |
| <span class="string">"November" </span>=> <span class="prelude-val">Ok</span>(Month::November), |
| <span class="string">"December" </span>=> <span class="prelude-val">Ok</span>(Month::December), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(E::invalid_value(de::Unexpected::Str(value), <span class="kw-2">&</span><span class="string">"a `Month`"</span>)), |
| } |
| } |
| |
| <span class="kw">fn </span>visit_u64<E: de::Error>(<span class="self">self</span>, value: u64) -> <span class="prelude-ty">Result</span><Month, E> { |
| <span class="kw">match </span>value { |
| <span class="number">1 </span>=> <span class="prelude-val">Ok</span>(Month::January), |
| <span class="number">2 </span>=> <span class="prelude-val">Ok</span>(Month::February), |
| <span class="number">3 </span>=> <span class="prelude-val">Ok</span>(Month::March), |
| <span class="number">4 </span>=> <span class="prelude-val">Ok</span>(Month::April), |
| <span class="number">5 </span>=> <span class="prelude-val">Ok</span>(Month::May), |
| <span class="number">6 </span>=> <span class="prelude-val">Ok</span>(Month::June), |
| <span class="number">7 </span>=> <span class="prelude-val">Ok</span>(Month::July), |
| <span class="number">8 </span>=> <span class="prelude-val">Ok</span>(Month::August), |
| <span class="number">9 </span>=> <span class="prelude-val">Ok</span>(Month::September), |
| <span class="number">10 </span>=> <span class="prelude-val">Ok</span>(Month::October), |
| <span class="number">11 </span>=> <span class="prelude-val">Ok</span>(Month::November), |
| <span class="number">12 </span>=> <span class="prelude-val">Ok</span>(Month::December), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(E::invalid_value( |
| de::Unexpected::Unsigned(value), |
| <span class="kw-2">&</span><span class="string">"a value in the range 1..=12"</span>, |
| )), |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Implement a visitor for a well-known format. |
| </span><span class="macro">macro_rules! </span>well_known { |
| (<span class="macro-nonterminal">$article</span>:literal, <span class="macro-nonterminal">$name</span>:literal, $(<span class="macro-nonterminal">$ty</span>:tt)+) => { |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<$(<span class="macro-nonterminal">$ty</span>)+> { |
| <span class="kw">type </span>Value = OffsetDateTime; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="macro">concat!</span>(<span class="macro-nonterminal">$article</span>, <span class="string">" "</span>, <span class="macro-nonterminal">$name</span>, <span class="string">"-formatted `OffsetDateTime`"</span>)) |
| } |
| |
| <span class="kw">fn </span>visit_str<E: de::Error>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><OffsetDateTime, E> { |
| OffsetDateTime::parse(value, <span class="kw-2">&</span>$(<span class="macro-nonterminal">$ty</span>)+).map_err(E::custom) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"parsing"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>> de::Visitor<<span class="lifetime">'a</span>> <span class="kw">for </span>Visitor<<span class="prelude-ty">Option</span><$(<span class="macro-nonterminal">$ty</span>)+>> { |
| <span class="kw">type </span>Value = <span class="prelude-ty">Option</span><OffsetDateTime>; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| formatter.write_str(<span class="macro">concat!</span>( |
| <span class="macro-nonterminal">$article</span>, |
| <span class="string">" "</span>, |
| <span class="macro-nonterminal">$name</span>, |
| <span class="string">"-formatted `Option<OffsetDateTime>`" |
| </span>)) |
| } |
| |
| <span class="kw">fn </span>visit_some<D: Deserializer<<span class="lifetime">'a</span>>>( |
| <span class="self">self</span>, |
| deserializer: D, |
| ) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><OffsetDateTime>, D::Error> { |
| deserializer |
| .deserialize_any(Visitor::<$(<span class="macro-nonterminal">$ty</span>)+>(PhantomData)) |
| .map(<span class="prelude-val">Some</span>) |
| } |
| |
| <span class="kw">fn </span>visit_none<E: de::Error>(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><OffsetDateTime>, E> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| |
| <span class="kw">fn </span>visit_unit<E: de::Error>(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::Value, E> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| }; |
| } |
| |
| <span class="macro">well_known!</span>(<span class="string">"an"</span>, <span class="string">"RFC2822"</span>, Rfc2822); |
| <span class="macro">well_known!</span>(<span class="string">"an"</span>, <span class="string">"RFC3339"</span>, Rfc3339); |
| <span class="macro">well_known!</span>( |
| <span class="string">"an"</span>, |
| <span class="string">"ISO 8601"</span>, |
| Iso8601::<{ <span class="kw">super</span>::iso8601::SERDE_CONFIG }> |
| ); |
| </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> |