| <!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/humantime-1.3.0/src/date.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>date.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="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></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="../../humantime/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../humantime/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| <span id="614">614</span> |
| </pre><pre class="rust"><code><span class="kw">use </span>std::fmt; |
| <span class="kw">use </span>std::str; |
| <span class="kw">use </span>std::time::{SystemTime, Duration, UNIX_EPOCH}; |
| |
| <span class="attribute">#[cfg(target_os=<span class="string">"cloudabi"</span>)] |
| </span><span class="kw">mod </span>max { |
| <span class="kw">pub const </span>SECONDS: u64 = ::std::u64::MAX / <span class="number">1_000_000_000</span>; |
| <span class="attribute">#[allow(unused)] |
| </span><span class="kw">pub const </span>TIMESTAMP: <span class="kw-2">&</span><span class="lifetime">'static </span>str = <span class="string">"2554-07-21T23:34:33Z"</span>; |
| } |
| <span class="attribute">#[cfg(all( |
| target_pointer_width=<span class="string">"32"</span>, |
| not(target_os=<span class="string">"cloudabi"</span>), |
| not(target_os=<span class="string">"windows"</span>), |
| not(all(target_arch=<span class="string">"wasm32"</span>, not(target_os=<span class="string">"emscripten"</span>))) |
| ))] |
| </span><span class="kw">mod </span>max { |
| <span class="kw">pub const </span>SECONDS: u64 = ::std::i32::MAX <span class="kw">as </span>u64; |
| <span class="attribute">#[allow(unused)] |
| </span><span class="kw">pub const </span>TIMESTAMP: <span class="kw-2">&</span><span class="lifetime">'static </span>str = <span class="string">"2038-01-19T03:14:07Z"</span>; |
| } |
| |
| <span class="attribute">#[cfg(any( |
| target_pointer_width=<span class="string">"64"</span>, |
| target_os=<span class="string">"windows"</span>, |
| all(target_arch=<span class="string">"wasm32"</span>, not(target_os=<span class="string">"emscripten"</span>)), |
| ))] |
| </span><span class="kw">mod </span>max { |
| <span class="kw">pub const </span>SECONDS: u64 = <span class="number">253402300800</span>-<span class="number">1</span>; <span class="comment">// last second of year 9999 |
| </span><span class="attribute">#[allow(unused)] |
| </span><span class="kw">pub const </span>TIMESTAMP: <span class="kw-2">&</span><span class="lifetime">'static </span>str = <span class="string">"9999-12-31T23:59:59Z"</span>; |
| } |
| |
| <span class="macro">quick_error! </span>{ |
| <span class="doccomment">/// Error parsing datetime (timestamp) |
| </span><span class="attribute">#[derive(Debug, PartialEq, Clone, Copy)] |
| </span><span class="kw">pub enum </span>Error { |
| <span class="doccomment">/// Numeric component is out of range |
| </span>OutOfRange { |
| display(<span class="string">"numeric component is out of range"</span>) |
| } |
| <span class="doccomment">/// Bad character where digit is expected |
| </span>InvalidDigit { |
| display(<span class="string">"bad character where digit is expected"</span>) |
| } |
| <span class="doccomment">/// Other formatting errors |
| </span>InvalidFormat { |
| display(<span class="string">"timestamp format is invalid"</span>) |
| } |
| } |
| } |
| |
| <span class="attribute">#[derive(Debug, Clone, PartialEq, Eq)] |
| </span><span class="kw">enum </span>Precision { |
| Smart, |
| Seconds, |
| Millis, |
| Micros, |
| Nanos, |
| } |
| |
| <span class="doccomment">/// A wrapper type that allows you to Display a SystemTime |
| </span><span class="attribute">#[derive(Debug, Clone)] |
| </span><span class="kw">pub struct </span>Rfc3339Timestamp(SystemTime, Precision); |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>two_digits(b1: u8, b2: u8) -> <span class="prelude-ty">Result</span><u64, Error> { |
| <span class="kw">if </span>b1 < <span class="string">b'0' </span>|| b2 < <span class="string">b'0' </span>|| b1 > <span class="string">b'9' </span>|| b2 > <span class="string">b'9' </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::InvalidDigit); |
| } |
| <span class="prelude-val">Ok</span>(((b1 - <span class="string">b'0'</span>)<span class="kw-2">*</span><span class="number">10 </span>+ (b2 - <span class="string">b'0'</span>)) <span class="kw">as </span>u64) |
| } |
| |
| <span class="doccomment">/// Parse RFC3339 timestamp `2018-02-14T00:28:07Z` |
| /// |
| /// Supported feature: any precision of fractional |
| /// digits `2018-02-14T00:28:07.133Z`. |
| /// |
| /// Unsupported feature: localized timestamps. Only UTC is supported. |
| </span><span class="kw">pub fn </span>parse_rfc3339(s: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><SystemTime, Error> { |
| <span class="kw">if </span>s.len() < <span class="string">"2018-02-14T00:28:07Z"</span>.len() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::InvalidFormat); |
| } |
| <span class="kw">let </span>b = s.as_bytes(); |
| <span class="kw">if </span>b[<span class="number">10</span>] != <span class="string">b'T' </span>|| b[b.len()-<span class="number">1</span>] != <span class="string">b'Z' </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::InvalidFormat); |
| } |
| <span class="kw">return </span>parse_rfc3339_weak(s); |
| } |
| |
| <span class="doccomment">/// Parse RFC3339-like timestamp `2018-02-14 00:28:07` |
| /// |
| /// Supported features: |
| /// |
| /// 1. Any precision of fractional digits `2018-02-14 00:28:07.133`. |
| /// 2. Supports timestamp with or without either of `T` or `Z` |
| /// 3. Anything valid for `parse_3339` is valid for this function |
| /// |
| /// Unsupported feature: localized timestamps. Only UTC is supported, even if |
| /// `Z` is not specified. |
| /// |
| /// This function is intended to use for parsing human input. Whereas |
| /// `parse_rfc3339` is for strings generated programmatically. |
| </span><span class="kw">pub fn </span>parse_rfc3339_weak(s: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><SystemTime, Error> { |
| <span class="kw">if </span>s.len() < <span class="string">"2018-02-14T00:28:07"</span>.len() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::InvalidFormat); |
| } |
| <span class="kw">let </span>b = s.as_bytes(); <span class="comment">// for careless slicing |
| </span><span class="kw">if </span>b[<span class="number">4</span>] != <span class="string">b'-' </span>|| b[<span class="number">7</span>] != <span class="string">b'-' </span>|| (b[<span class="number">10</span>] != <span class="string">b'T' </span>&& b[<span class="number">10</span>] != <span class="string">b' '</span>) || |
| b[<span class="number">13</span>] != <span class="string">b':' </span>|| b[<span class="number">16</span>] != <span class="string">b':' |
| </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::InvalidFormat); |
| } |
| <span class="kw">let </span>year = two_digits(b[<span class="number">0</span>], b[<span class="number">1</span>])<span class="question-mark">? </span>* <span class="number">100 </span>+ two_digits(b[<span class="number">2</span>], b[<span class="number">3</span>])<span class="question-mark">?</span>; |
| <span class="kw">let </span>month = two_digits(b[<span class="number">5</span>], b[<span class="number">6</span>])<span class="question-mark">?</span>; |
| <span class="kw">let </span>day = two_digits(b[<span class="number">8</span>], b[<span class="number">9</span>])<span class="question-mark">?</span>; |
| <span class="kw">let </span>hour = two_digits(b[<span class="number">11</span>], b[<span class="number">12</span>])<span class="question-mark">?</span>; |
| <span class="kw">let </span>minute = two_digits(b[<span class="number">14</span>], b[<span class="number">15</span>])<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>second = two_digits(b[<span class="number">17</span>], b[<span class="number">18</span>])<span class="question-mark">?</span>; |
| |
| <span class="kw">if </span>year < <span class="number">1970 </span>|| hour > <span class="number">23 </span>|| minute > <span class="number">59 </span>|| second > <span class="number">60 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::OutOfRange); |
| } |
| <span class="comment">// TODO(tailhook) should we check that leaps second is only on midnight ? |
| </span><span class="kw">if </span>second == <span class="number">60 </span>{ |
| second = <span class="number">59 |
| </span>}; |
| <span class="kw">let </span>leap_years = ((year - <span class="number">1</span>) - <span class="number">1968</span>) / <span class="number">4 </span>- ((year - <span class="number">1</span>) - <span class="number">1900</span>) / <span class="number">100 </span>+ |
| ((year - <span class="number">1</span>) - <span class="number">1600</span>) / <span class="number">400</span>; |
| <span class="kw">let </span>leap = is_leap_year(year); |
| <span class="kw">let </span>(<span class="kw-2">mut </span>ydays, mdays) = <span class="kw">match </span>month { |
| <span class="number">1 </span>=> (<span class="number">0</span>, <span class="number">31</span>), |
| <span class="number">2 </span><span class="kw">if </span>leap => (<span class="number">31</span>, <span class="number">29</span>), |
| <span class="number">2 </span>=> (<span class="number">31</span>, <span class="number">28</span>), |
| <span class="number">3 </span>=> (<span class="number">59</span>, <span class="number">31</span>), |
| <span class="number">4 </span>=> (<span class="number">90</span>, <span class="number">30</span>), |
| <span class="number">5 </span>=> (<span class="number">120</span>, <span class="number">31</span>), |
| <span class="number">6 </span>=> (<span class="number">151</span>, <span class="number">30</span>), |
| <span class="number">7 </span>=> (<span class="number">181</span>, <span class="number">31</span>), |
| <span class="number">8 </span>=> (<span class="number">212</span>, <span class="number">31</span>), |
| <span class="number">9 </span>=> (<span class="number">243</span>, <span class="number">30</span>), |
| <span class="number">10 </span>=> (<span class="number">273</span>, <span class="number">31</span>), |
| <span class="number">11 </span>=> (<span class="number">304</span>, <span class="number">30</span>), |
| <span class="number">12 </span>=> (<span class="number">334</span>, <span class="number">31</span>), |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(Error::OutOfRange), |
| }; |
| <span class="kw">if </span>day > mdays || day == <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::OutOfRange); |
| } |
| ydays += day - <span class="number">1</span>; |
| <span class="kw">if </span>leap && month > <span class="number">2 </span>{ |
| ydays += <span class="number">1</span>; |
| } |
| <span class="kw">let </span>days = (year - <span class="number">1970</span>) * <span class="number">365 </span>+ leap_years + ydays; |
| |
| <span class="kw">let </span>time = second + minute * <span class="number">60 </span>+ hour * <span class="number">3600</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>nanos = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>mult = <span class="number">100_000_000</span>; |
| <span class="kw">if </span>b.get(<span class="number">19</span>) == <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="string">b'.'</span>) { |
| <span class="kw">for </span>idx <span class="kw">in </span><span class="number">20</span>..b.len() { |
| <span class="kw">if </span>b[idx] == <span class="string">b'Z' </span>{ |
| <span class="kw">if </span>idx == b.len()-<span class="number">1 </span>{ |
| <span class="kw">break</span>; |
| } <span class="kw">else </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::InvalidDigit); |
| } |
| } |
| <span class="kw">if </span>b[idx] < <span class="string">b'0' </span>|| b[idx] > <span class="string">b'9' </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::InvalidDigit); |
| } |
| nanos += mult * (b[idx] - <span class="string">b'0'</span>) <span class="kw">as </span>u32; |
| mult /= <span class="number">10</span>; |
| } |
| } <span class="kw">else </span>{ |
| <span class="kw">if </span>b.len() != <span class="number">19 </span>&& (b.len() > <span class="number">20 </span>|| b[<span class="number">19</span>] != <span class="string">b'Z'</span>) { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::InvalidFormat); |
| } |
| } |
| |
| <span class="kw">let </span>total_seconds = time + days * <span class="number">86400</span>; |
| <span class="kw">if </span>total_seconds > max::SECONDS { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::OutOfRange); |
| } |
| |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(UNIX_EPOCH + Duration::new(total_seconds, nanos)); |
| } |
| |
| <span class="kw">fn </span>is_leap_year(y: u64) -> bool { |
| y % <span class="number">4 </span>== <span class="number">0 </span>&& (!(y % <span class="number">100 </span>== <span class="number">0</span>) || y % <span class="number">400 </span>== <span class="number">0</span>) |
| } |
| |
| <span class="doccomment">/// Format an RFC3339 timestamp `2018-02-14T00:28:07Z` |
| /// |
| /// This function formats timestamp with smart precision: i.e. if it has no |
| /// fractional seconds, they aren't written at all. And up to nine digits if |
| /// they are. |
| /// |
| /// The value is always UTC and ignores system timezone. |
| </span><span class="kw">pub fn </span>format_rfc3339(system_time: SystemTime) -> Rfc3339Timestamp { |
| <span class="kw">return </span>Rfc3339Timestamp(system_time, Precision::Smart); |
| } |
| |
| <span class="doccomment">/// Format an RFC3339 timestamp `2018-02-14T00:28:07Z` |
| /// |
| /// This format always shows timestamp without fractional seconds. |
| /// |
| /// The value is always UTC and ignores system timezone. |
| </span><span class="kw">pub fn </span>format_rfc3339_seconds(system_time: SystemTime) -> Rfc3339Timestamp { |
| <span class="kw">return </span>Rfc3339Timestamp(system_time, Precision::Seconds); |
| } |
| |
| <span class="doccomment">/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000Z` |
| /// |
| /// This format always shows milliseconds even if millisecond value is zero. |
| /// |
| /// The value is always UTC and ignores system timezone. |
| </span><span class="kw">pub fn </span>format_rfc3339_millis(system_time: SystemTime) -> Rfc3339Timestamp { |
| <span class="kw">return </span>Rfc3339Timestamp(system_time, Precision::Millis); |
| } |
| |
| <span class="doccomment">/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000000Z` |
| /// |
| /// This format always shows microseconds even if microsecond value is zero. |
| /// |
| /// The value is always UTC and ignores system timezone. |
| </span><span class="kw">pub fn </span>format_rfc3339_micros(system_time: SystemTime) -> Rfc3339Timestamp { |
| <span class="kw">return </span>Rfc3339Timestamp(system_time, Precision::Micros); |
| } |
| |
| <span class="doccomment">/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000000000Z` |
| /// |
| /// This format always shows nanoseconds even if nanosecond value is zero. |
| /// |
| /// The value is always UTC and ignores system timezone. |
| </span><span class="kw">pub fn </span>format_rfc3339_nanos(system_time: SystemTime) -> Rfc3339Timestamp { |
| <span class="kw">return </span>Rfc3339Timestamp(system_time, Precision::Nanos); |
| } |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>Rfc3339Timestamp { |
| <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) -> fmt::Result { |
| <span class="kw">use </span><span class="self">self</span>::Precision::<span class="kw-2">*</span>; |
| |
| <span class="kw">let </span>dur = <span class="self">self</span>.<span class="number">0</span>.duration_since(UNIX_EPOCH) |
| .expect(<span class="string">"all times should be after the epoch"</span>); |
| <span class="kw">let </span>secs_since_epoch = dur.as_secs(); |
| <span class="kw">let </span>nanos = dur.subsec_nanos(); |
| |
| <span class="kw">if </span>secs_since_epoch >= <span class="number">253402300800 </span>{ <span class="comment">// year 9999 |
| </span><span class="kw">return </span><span class="prelude-val">Err</span>(fmt::Error); |
| } |
| |
| <span class="comment">/* 2000-03-01 (mod 400 year, immediately after feb29 */ |
| </span><span class="kw">const </span>LEAPOCH: i64 = <span class="number">11017</span>; |
| <span class="kw">const </span>DAYS_PER_400Y: i64 = <span class="number">365</span><span class="kw-2">*</span><span class="number">400 </span>+ <span class="number">97</span>; |
| <span class="kw">const </span>DAYS_PER_100Y: i64 = <span class="number">365</span><span class="kw-2">*</span><span class="number">100 </span>+ <span class="number">24</span>; |
| <span class="kw">const </span>DAYS_PER_4Y: i64 = <span class="number">365</span><span class="kw-2">*</span><span class="number">4 </span>+ <span class="number">1</span>; |
| |
| <span class="kw">let </span>days = (secs_since_epoch / <span class="number">86400</span>) <span class="kw">as </span>i64 - LEAPOCH; |
| <span class="kw">let </span>secs_of_day = secs_since_epoch % <span class="number">86400</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>qc_cycles = days / DAYS_PER_400Y; |
| <span class="kw">let </span><span class="kw-2">mut </span>remdays = days % DAYS_PER_400Y; |
| |
| <span class="kw">if </span>remdays < <span class="number">0 </span>{ |
| remdays += DAYS_PER_400Y; |
| qc_cycles -= <span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>c_cycles = remdays / DAYS_PER_100Y; |
| <span class="kw">if </span>c_cycles == <span class="number">4 </span>{ c_cycles -= <span class="number">1</span>; } |
| remdays -= c_cycles * DAYS_PER_100Y; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>q_cycles = remdays / DAYS_PER_4Y; |
| <span class="kw">if </span>q_cycles == <span class="number">25 </span>{ q_cycles -= <span class="number">1</span>; } |
| remdays -= q_cycles * DAYS_PER_4Y; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>remyears = remdays / <span class="number">365</span>; |
| <span class="kw">if </span>remyears == <span class="number">4 </span>{ remyears -= <span class="number">1</span>; } |
| remdays -= remyears * <span class="number">365</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>year = <span class="number">2000 </span>+ |
| remyears + <span class="number">4</span><span class="kw-2">*</span>q_cycles + <span class="number">100</span><span class="kw-2">*</span>c_cycles + <span class="number">400</span><span class="kw-2">*</span>qc_cycles; |
| |
| <span class="kw">let </span>months = [<span class="number">31</span>,<span class="number">30</span>,<span class="number">31</span>,<span class="number">30</span>,<span class="number">31</span>,<span class="number">31</span>,<span class="number">30</span>,<span class="number">31</span>,<span class="number">30</span>,<span class="number">31</span>,<span class="number">31</span>,<span class="number">29</span>]; |
| <span class="kw">let </span><span class="kw-2">mut </span>mon = <span class="number">0</span>; |
| <span class="kw">for </span>mon_len <span class="kw">in </span>months.iter() { |
| mon += <span class="number">1</span>; |
| <span class="kw">if </span>remdays < <span class="kw-2">*</span>mon_len { |
| <span class="kw">break</span>; |
| } |
| remdays -= <span class="kw-2">*</span>mon_len; |
| } |
| <span class="kw">let </span>mday = remdays+<span class="number">1</span>; |
| <span class="kw">let </span>mon = <span class="kw">if </span>mon + <span class="number">2 </span>> <span class="number">12 </span>{ |
| year += <span class="number">1</span>; |
| mon - <span class="number">10 |
| </span>} <span class="kw">else </span>{ |
| mon + <span class="number">2 |
| </span>}; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>buf: [u8; <span class="number">30</span>] = [ |
| <span class="comment">// Too long to write as: b"0000-00-00T00:00:00.000000000Z" |
| </span><span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'-'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'-'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'T'</span>, |
| <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b':'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b':'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, |
| <span class="string">b'.'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'0'</span>, <span class="string">b'Z'</span>, |
| ]; |
| buf[<span class="number">0</span>] = <span class="string">b'0' </span>+ (year / <span class="number">1000</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">1</span>] = <span class="string">b'0' </span>+ (year / <span class="number">100 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">2</span>] = <span class="string">b'0' </span>+ (year / <span class="number">10 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">3</span>] = <span class="string">b'0' </span>+ (year % <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">5</span>] = <span class="string">b'0' </span>+ (mon / <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">6</span>] = <span class="string">b'0' </span>+ (mon % <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">8</span>] = <span class="string">b'0' </span>+ (mday / <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">9</span>] = <span class="string">b'0' </span>+ (mday % <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">11</span>] = <span class="string">b'0' </span>+ (secs_of_day / <span class="number">3600 </span>/ <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">12</span>] = <span class="string">b'0' </span>+ (secs_of_day / <span class="number">3600 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">14</span>] = <span class="string">b'0' </span>+ (secs_of_day / <span class="number">60 </span>/ <span class="number">10 </span>% <span class="number">6</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">15</span>] = <span class="string">b'0' </span>+ (secs_of_day / <span class="number">60 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">17</span>] = <span class="string">b'0' </span>+ (secs_of_day / <span class="number">10 </span>% <span class="number">6</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">18</span>] = <span class="string">b'0' </span>+ (secs_of_day % <span class="number">10</span>) <span class="kw">as </span>u8; |
| |
| <span class="kw">let </span>offset = <span class="kw">if </span><span class="self">self</span>.<span class="number">1 </span>== Seconds || nanos == <span class="number">0 </span>&& <span class="self">self</span>.<span class="number">1 </span>== Smart { |
| buf[<span class="number">19</span>] = <span class="string">b'Z'</span>; |
| <span class="number">19 |
| </span>} <span class="kw">else if </span><span class="self">self</span>.<span class="number">1 </span>== Millis { |
| buf[<span class="number">20</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">100_000_000</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">21</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">10_000_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">22</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">1_000_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">23</span>] = <span class="string">b'Z'</span>; |
| <span class="number">23 |
| </span>} <span class="kw">else if </span><span class="self">self</span>.<span class="number">1 </span>== Micros { |
| buf[<span class="number">20</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">100_000_000</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">21</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">10_000_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">22</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">1_000_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">23</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">100_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">24</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">10_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">25</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">1_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">26</span>] = <span class="string">b'Z'</span>; |
| <span class="number">26 |
| </span>} <span class="kw">else </span>{ |
| buf[<span class="number">20</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">100_000_000</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">21</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">10_000_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">22</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">1_000_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">23</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">100_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">24</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">10_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">25</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">1_000 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">26</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">100 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">27</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">10 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| buf[<span class="number">28</span>] = <span class="string">b'0' </span>+ (nanos / <span class="number">1 </span>% <span class="number">10</span>) <span class="kw">as </span>u8; |
| <span class="comment">// 29th is 'Z' |
| </span><span class="number">29 |
| </span>}; |
| |
| <span class="comment">// we know our chars are all ascii |
| </span>f.write_str(<span class="kw">unsafe </span>{ str::from_utf8_unchecked(<span class="kw-2">&</span>buf[..offset+<span class="number">1</span>]) }) |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">extern crate </span>time; |
| <span class="kw">extern crate </span>rand; |
| |
| <span class="kw">use </span>std::str::from_utf8; |
| <span class="kw">use </span><span class="self">self</span>::rand::Rng; |
| <span class="kw">use </span>std::time::{UNIX_EPOCH, SystemTime, Duration}; |
| <span class="kw">use super</span>::{parse_rfc3339, parse_rfc3339_weak, format_rfc3339}; |
| <span class="kw">use super</span>::{format_rfc3339_millis, format_rfc3339_micros}; |
| <span class="kw">use super</span>::{format_rfc3339_nanos}; |
| <span class="kw">use </span><span class="kw">super</span>::max; |
| |
| <span class="kw">fn </span>from_sec(sec: u64) -> (String, SystemTime) { |
| <span class="kw">let </span>s = time::at_utc(time::Timespec { sec: sec <span class="kw">as </span>i64, nsec: <span class="number">0 </span>}) |
| .rfc3339().to_string(); |
| <span class="kw">let </span>time = UNIX_EPOCH + Duration::new(sec, <span class="number">0</span>); |
| <span class="kw">return </span>(s, time) |
| } |
| |
| <span class="attribute">#[test] |
| #[cfg(all(target_pointer_width=<span class="string">"32"</span>, target_os=<span class="string">"linux"</span>))] |
| </span><span class="kw">fn </span>year_after_2038_fails_gracefully() { |
| <span class="comment">// next second |
| </span><span class="macro">assert_eq!</span>(parse_rfc3339(<span class="string">"2038-01-19T03:14:08Z"</span>).unwrap_err(), |
| <span class="kw">super</span>::Error::OutOfRange); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="string">"9999-12-31T23:59:59Z"</span>).unwrap_err(), |
| <span class="kw">super</span>::Error::OutOfRange); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>smoke_tests_parse() { |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="string">"1970-01-01T00:00:00Z"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">0</span>)); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="string">"1970-01-01T00:00:01Z"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">1</span>, <span class="number">0</span>)); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="string">"2018-02-13T23:08:32Z"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">1518563312</span>, <span class="number">0</span>)); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="string">"2012-01-01T00:00:00Z"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">1325376000</span>, <span class="number">0</span>)); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>smoke_tests_format() { |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339(UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">0</span>)).to_string(), |
| <span class="string">"1970-01-01T00:00:00Z"</span>); |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339(UNIX_EPOCH + Duration::new(<span class="number">1</span>, <span class="number">0</span>)).to_string(), |
| <span class="string">"1970-01-01T00:00:01Z"</span>); |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339(UNIX_EPOCH + Duration::new(<span class="number">1518563312</span>, <span class="number">0</span>)).to_string(), |
| <span class="string">"2018-02-13T23:08:32Z"</span>); |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339(UNIX_EPOCH + Duration::new(<span class="number">1325376000</span>, <span class="number">0</span>)).to_string(), |
| <span class="string">"2012-01-01T00:00:00Z"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>smoke_tests_format_millis() { |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339_millis(UNIX_EPOCH + |
| Duration::new(<span class="number">0</span>, <span class="number">0</span>)).to_string(), |
| <span class="string">"1970-01-01T00:00:00.000Z"</span>); |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339_millis(UNIX_EPOCH + |
| Duration::new(<span class="number">1518563312</span>, <span class="number">123_000_000</span>)).to_string(), |
| <span class="string">"2018-02-13T23:08:32.123Z"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>smoke_tests_format_micros() { |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339_micros(UNIX_EPOCH + |
| Duration::new(<span class="number">0</span>, <span class="number">0</span>)).to_string(), |
| <span class="string">"1970-01-01T00:00:00.000000Z"</span>); |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339_micros(UNIX_EPOCH + |
| Duration::new(<span class="number">1518563312</span>, <span class="number">123_000_000</span>)).to_string(), |
| <span class="string">"2018-02-13T23:08:32.123000Z"</span>); |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339_micros(UNIX_EPOCH + |
| Duration::new(<span class="number">1518563312</span>, <span class="number">456_123_000</span>)).to_string(), |
| <span class="string">"2018-02-13T23:08:32.456123Z"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>smoke_tests_format_nanos() { |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339_nanos(UNIX_EPOCH + |
| Duration::new(<span class="number">0</span>, <span class="number">0</span>)).to_string(), |
| <span class="string">"1970-01-01T00:00:00.000000000Z"</span>); |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339_nanos(UNIX_EPOCH + |
| Duration::new(<span class="number">1518563312</span>, <span class="number">123_000_000</span>)).to_string(), |
| <span class="string">"2018-02-13T23:08:32.123000000Z"</span>); |
| <span class="macro">assert_eq!</span>( |
| format_rfc3339_nanos(UNIX_EPOCH + |
| Duration::new(<span class="number">1518563312</span>, <span class="number">789_456_123</span>)).to_string(), |
| <span class="string">"2018-02-13T23:08:32.789456123Z"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>upper_bound() { |
| <span class="kw">let </span>max = UNIX_EPOCH + Duration::new(max::SECONDS, <span class="number">0</span>); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="kw-2">&</span>max::TIMESTAMP).unwrap(), max); |
| <span class="macro">assert_eq!</span>(format_rfc3339(max).to_string(), max::TIMESTAMP); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>leap_second() { |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="string">"2016-12-31T23:59:60Z"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">1483228799</span>, <span class="number">0</span>)); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>first_731_days() { |
| <span class="kw">let </span>year_start = <span class="number">0</span>; <span class="comment">// 1970 |
| </span><span class="kw">for </span>day <span class="kw">in </span><span class="number">0</span>.. (<span class="number">365 </span>* <span class="number">2 </span>+ <span class="number">1</span>) { <span class="comment">// scan leap year and non-leap year |
| </span><span class="kw">let </span>(s, time) = from_sec(year_start + day * <span class="number">86400</span>); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="kw-2">&</span>s).unwrap(), time); |
| <span class="macro">assert_eq!</span>(format_rfc3339(time).to_string(), s); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>the_731_consecutive_days() { |
| <span class="kw">let </span>year_start = <span class="number">1325376000</span>; <span class="comment">// 2012 |
| </span><span class="kw">for </span>day <span class="kw">in </span><span class="number">0</span>.. (<span class="number">365 </span>* <span class="number">2 </span>+ <span class="number">1</span>) { <span class="comment">// scan leap year and non-leap year |
| </span><span class="kw">let </span>(s, time) = from_sec(year_start + day * <span class="number">86400</span>); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="kw-2">&</span>s).unwrap(), time); |
| <span class="macro">assert_eq!</span>(format_rfc3339(time).to_string(), s); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>all_86400_seconds() { |
| <span class="kw">let </span>day_start = <span class="number">1325376000</span>; |
| <span class="kw">for </span>second <span class="kw">in </span><span class="number">0</span>..<span class="number">86400 </span>{ <span class="comment">// scan leap year and non-leap year |
| </span><span class="kw">let </span>(s, time) = from_sec(day_start + second); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="kw-2">&</span>s).unwrap(), time); |
| <span class="macro">assert_eq!</span>(format_rfc3339(time).to_string(), s); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>random_past() { |
| <span class="kw">let </span>upper = SystemTime::now().duration_since(UNIX_EPOCH).unwrap() |
| .as_secs(); |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">10000 </span>{ |
| <span class="kw">let </span>sec = rand::thread_rng().gen_range(<span class="number">0</span>, upper); |
| <span class="kw">let </span>(s, time) = from_sec(sec); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="kw-2">&</span>s).unwrap(), time); |
| <span class="macro">assert_eq!</span>(format_rfc3339(time).to_string(), s); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>random_wide_range() { |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">100000 </span>{ |
| <span class="kw">let </span>sec = rand::thread_rng().gen_range(<span class="number">0</span>, max::SECONDS); |
| <span class="kw">let </span>(s, time) = from_sec(sec); |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="kw-2">&</span>s).unwrap(), time); |
| <span class="macro">assert_eq!</span>(format_rfc3339(time).to_string(), s); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>milliseconds() { |
| <span class="macro">assert_eq!</span>(parse_rfc3339(<span class="string">"1970-01-01T00:00:00.123Z"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">123000000</span>)); |
| <span class="macro">assert_eq!</span>(format_rfc3339(UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">123000000</span>)) |
| .to_string(), <span class="string">"1970-01-01T00:00:00.123000000Z"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| #[should_panic(expected=<span class="string">"OutOfRange"</span>)] |
| </span><span class="kw">fn </span>zero_month() { |
| parse_rfc3339(<span class="string">"1970-00-01T00:00:00Z"</span>).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| #[should_panic(expected=<span class="string">"OutOfRange"</span>)] |
| </span><span class="kw">fn </span>big_month() { |
| parse_rfc3339(<span class="string">"1970-32-01T00:00:00Z"</span>).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| #[should_panic(expected=<span class="string">"OutOfRange"</span>)] |
| </span><span class="kw">fn </span>zero_day() { |
| parse_rfc3339(<span class="string">"1970-01-00T00:00:00Z"</span>).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| #[should_panic(expected=<span class="string">"OutOfRange"</span>)] |
| </span><span class="kw">fn </span>big_day() { |
| parse_rfc3339(<span class="string">"1970-12-35T00:00:00Z"</span>).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| #[should_panic(expected=<span class="string">"OutOfRange"</span>)] |
| </span><span class="kw">fn </span>big_day2() { |
| parse_rfc3339(<span class="string">"1970-02-30T00:00:00Z"</span>).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| #[should_panic(expected=<span class="string">"OutOfRange"</span>)] |
| </span><span class="kw">fn </span>big_second() { |
| parse_rfc3339(<span class="string">"1970-12-30T00:00:78Z"</span>).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| #[should_panic(expected=<span class="string">"OutOfRange"</span>)] |
| </span><span class="kw">fn </span>big_minute() { |
| parse_rfc3339(<span class="string">"1970-12-30T00:78:00Z"</span>).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| #[should_panic(expected=<span class="string">"OutOfRange"</span>)] |
| </span><span class="kw">fn </span>big_hour() { |
| parse_rfc3339(<span class="string">"1970-12-30T24:00:00Z"</span>).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>break_data() { |
| <span class="kw">for </span>pos <span class="kw">in </span><span class="number">0</span>..<span class="string">"2016-12-31T23:59:60Z"</span>.len() { |
| <span class="kw">let </span><span class="kw-2">mut </span>s = <span class="string">b"2016-12-31T23:59:60Z"</span>.to_vec(); |
| s[pos] = <span class="string">b'x'</span>; |
| parse_rfc3339(from_utf8(<span class="kw-2">&</span>s).unwrap()).unwrap_err(); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>weak_smoke_tests() { |
| <span class="macro">assert_eq!</span>(parse_rfc3339_weak(<span class="string">"1970-01-01 00:00:00"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">0</span>)); |
| parse_rfc3339(<span class="string">"1970-01-01 00:00:00"</span>).unwrap_err(); |
| |
| <span class="macro">assert_eq!</span>(parse_rfc3339_weak(<span class="string">"1970-01-01 00:00:00.000123"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">123000</span>)); |
| parse_rfc3339(<span class="string">"1970-01-01 00:00:00.000123"</span>).unwrap_err(); |
| |
| <span class="macro">assert_eq!</span>(parse_rfc3339_weak(<span class="string">"1970-01-01T00:00:00.000123"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">123000</span>)); |
| parse_rfc3339(<span class="string">"1970-01-01T00:00:00.000123"</span>).unwrap_err(); |
| |
| <span class="macro">assert_eq!</span>(parse_rfc3339_weak(<span class="string">"1970-01-01 00:00:00.000123Z"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">123000</span>)); |
| parse_rfc3339(<span class="string">"1970-01-01 00:00:00.000123Z"</span>).unwrap_err(); |
| |
| <span class="macro">assert_eq!</span>(parse_rfc3339_weak(<span class="string">"1970-01-01 00:00:00Z"</span>).unwrap(), |
| UNIX_EPOCH + Duration::new(<span class="number">0</span>, <span class="number">0</span>)); |
| parse_rfc3339(<span class="string">"1970-01-01 00:00:00Z"</span>).unwrap_err(); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="humantime" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
