| <!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/chrono-0.4.26/src/naive/internals.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>internals.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="../../../chrono/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="../../../chrono/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="893">893</span> |
| </pre><pre class="rust"><code><span class="comment">// This is a part of Chrono. |
| // See README.md and LICENSE.txt for details. |
| |
| </span><span class="doccomment">//! The internal implementation of the calendar and ordinal date. |
| //! |
| //! The current implementation is optimized for determining year, month, day and day of week. |
| //! 4-bit `YearFlags` map to one of 14 possible classes of year in the Gregorian calendar, |
| //! which are included in every packed `NaiveDate` instance. |
| //! The conversion between the packed calendar date (`Mdf`) and the ordinal date (`Of`) is |
| //! based on the moderately-sized lookup table (~1.5KB) |
| //! and the packed representation is chosen for the efficient lookup. |
| //! Every internal data structure does not validate its input, |
| //! but the conversion keeps the valid value valid and the invalid value invalid |
| //! so that the user-facing `NaiveDate` can validate the input as late as possible. |
| |
| </span><span class="attribute">#![cfg_attr(feature = <span class="string">"__internal_bench"</span>, allow(missing_docs))] |
| |
| </span><span class="kw">use </span><span class="kw">crate</span>::Weekday; |
| <span class="kw">use </span>core::{fmt, i32}; |
| |
| <span class="doccomment">/// The internal date representation: `year << 13 | Of` |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">type </span>DateImpl = i32; |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>MAX_YEAR: DateImpl = i32::MAX >> <span class="number">13</span>; |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>MIN_YEAR: DateImpl = i32::MIN >> <span class="number">13</span>; |
| |
| <span class="doccomment">/// The year flags (aka the dominical letter). |
| /// |
| /// There are 14 possible classes of year in the Gregorian calendar: |
| /// common and leap years starting with Monday through Sunday. |
| /// The `YearFlags` stores this information into 4 bits `abbb`, |
| /// where `a` is `1` for the common year (simplifies the `Of` validation) |
| /// and `bbb` is a non-zero `Weekday` (mapping `Mon` to 7) of the last day in the past year |
| /// (simplifies the day of week calculation from the 1-based ordinal). |
| </span><span class="attribute">#[allow(unreachable_pub)] </span><span class="comment">// public as an alias for benchmarks only |
| </span><span class="attribute">#[derive(PartialEq, Eq, Copy, Clone, Hash)] |
| </span><span class="kw">pub struct </span>YearFlags(<span class="kw">pub</span>(<span class="kw">super</span>) u8); |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>A: YearFlags = YearFlags(<span class="number">0o15</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>AG: YearFlags = YearFlags(<span class="number">0o05</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>B: YearFlags = YearFlags(<span class="number">0o14</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>BA: YearFlags = YearFlags(<span class="number">0o04</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>C: YearFlags = YearFlags(<span class="number">0o13</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>CB: YearFlags = YearFlags(<span class="number">0o03</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>D: YearFlags = YearFlags(<span class="number">0o12</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>DC: YearFlags = YearFlags(<span class="number">0o02</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>E: YearFlags = YearFlags(<span class="number">0o11</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>ED: YearFlags = YearFlags(<span class="number">0o01</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>F: YearFlags = YearFlags(<span class="number">0o17</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>FE: YearFlags = YearFlags(<span class="number">0o07</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>G: YearFlags = YearFlags(<span class="number">0o16</span>); |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>GF: YearFlags = YearFlags(<span class="number">0o06</span>); |
| |
| <span class="kw">const </span>YEAR_TO_FLAGS: <span class="kw-2">&</span>[YearFlags; <span class="number">400</span>] = <span class="kw-2">&</span>[ |
| BA, G, F, E, DC, B, A, G, FE, D, C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, |
| G, F, E, DC, B, A, G, FE, D, C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, |
| F, E, DC, B, A, G, FE, D, C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, |
| E, DC, B, A, G, FE, D, C, B, AG, F, E, D, <span class="comment">// 100 |
| </span>C, B, A, G, FE, D, C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, |
| B, A, G, FE, D, C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, B, |
| A, G, FE, D, C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, B, A, |
| G, FE, D, C, B, AG, F, E, D, CB, A, G, F, <span class="comment">// 200 |
| </span>E, D, C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, B, A, G, FE, |
| D, C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, B, A, G, FE, D, |
| C, B, AG, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, B, A, G, FE, D, C, |
| B, AG, F, E, D, CB, A, G, F, ED, C, B, A, <span class="comment">// 300 |
| </span>G, F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, B, A, G, FE, D, C, B, AG, |
| F, E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, B, A, G, FE, D, C, B, AG, F, |
| E, D, CB, A, G, F, ED, C, B, A, GF, E, D, C, BA, G, F, E, DC, B, A, G, FE, D, C, B, AG, F, E, |
| D, CB, A, G, F, ED, C, B, A, GF, E, D, C, <span class="comment">// 400 |
| </span>]; |
| |
| <span class="kw">const </span>YEAR_DELTAS: <span class="kw-2">&</span>[u8; <span class="number">401</span>] = <span class="kw-2">&</span>[ |
| <span class="number">0</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">8</span>, <span class="number">8</span>, <span class="number">8</span>, |
| <span class="number">8</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, |
| <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">18</span>, <span class="number">18</span>, <span class="number">18</span>, <span class="number">18</span>, <span class="number">19</span>, <span class="number">19</span>, <span class="number">19</span>, <span class="number">19</span>, <span class="number">20</span>, <span class="number">20</span>, <span class="number">20</span>, <span class="number">20</span>, |
| <span class="number">21</span>, <span class="number">21</span>, <span class="number">21</span>, <span class="number">21</span>, <span class="number">22</span>, <span class="number">22</span>, <span class="number">22</span>, <span class="number">22</span>, <span class="number">23</span>, <span class="number">23</span>, <span class="number">23</span>, <span class="number">23</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="comment">// 100 |
| </span><span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">30</span>, <span class="number">30</span>, <span class="number">30</span>, |
| <span class="number">30</span>, <span class="number">31</span>, <span class="number">31</span>, <span class="number">31</span>, <span class="number">31</span>, <span class="number">32</span>, <span class="number">32</span>, <span class="number">32</span>, <span class="number">32</span>, <span class="number">33</span>, <span class="number">33</span>, <span class="number">33</span>, <span class="number">33</span>, <span class="number">34</span>, <span class="number">34</span>, <span class="number">34</span>, <span class="number">34</span>, <span class="number">35</span>, <span class="number">35</span>, <span class="number">35</span>, <span class="number">35</span>, <span class="number">36</span>, <span class="number">36</span>, <span class="number">36</span>, |
| <span class="number">36</span>, <span class="number">37</span>, <span class="number">37</span>, <span class="number">37</span>, <span class="number">37</span>, <span class="number">38</span>, <span class="number">38</span>, <span class="number">38</span>, <span class="number">38</span>, <span class="number">39</span>, <span class="number">39</span>, <span class="number">39</span>, <span class="number">39</span>, <span class="number">40</span>, <span class="number">40</span>, <span class="number">40</span>, <span class="number">40</span>, <span class="number">41</span>, <span class="number">41</span>, <span class="number">41</span>, <span class="number">41</span>, <span class="number">42</span>, <span class="number">42</span>, <span class="number">42</span>, |
| <span class="number">42</span>, <span class="number">43</span>, <span class="number">43</span>, <span class="number">43</span>, <span class="number">43</span>, <span class="number">44</span>, <span class="number">44</span>, <span class="number">44</span>, <span class="number">44</span>, <span class="number">45</span>, <span class="number">45</span>, <span class="number">45</span>, <span class="number">45</span>, <span class="number">46</span>, <span class="number">46</span>, <span class="number">46</span>, <span class="number">46</span>, <span class="number">47</span>, <span class="number">47</span>, <span class="number">47</span>, <span class="number">47</span>, <span class="number">48</span>, <span class="number">48</span>, <span class="number">48</span>, |
| <span class="number">48</span>, <span class="number">49</span>, <span class="number">49</span>, <span class="number">49</span>, <span class="comment">// 200 |
| </span><span class="number">49</span>, <span class="number">49</span>, <span class="number">49</span>, <span class="number">49</span>, <span class="number">49</span>, <span class="number">50</span>, <span class="number">50</span>, <span class="number">50</span>, <span class="number">50</span>, <span class="number">51</span>, <span class="number">51</span>, <span class="number">51</span>, <span class="number">51</span>, <span class="number">52</span>, <span class="number">52</span>, <span class="number">52</span>, <span class="number">52</span>, <span class="number">53</span>, <span class="number">53</span>, <span class="number">53</span>, <span class="number">53</span>, <span class="number">54</span>, <span class="number">54</span>, <span class="number">54</span>, |
| <span class="number">54</span>, <span class="number">55</span>, <span class="number">55</span>, <span class="number">55</span>, <span class="number">55</span>, <span class="number">56</span>, <span class="number">56</span>, <span class="number">56</span>, <span class="number">56</span>, <span class="number">57</span>, <span class="number">57</span>, <span class="number">57</span>, <span class="number">57</span>, <span class="number">58</span>, <span class="number">58</span>, <span class="number">58</span>, <span class="number">58</span>, <span class="number">59</span>, <span class="number">59</span>, <span class="number">59</span>, <span class="number">59</span>, <span class="number">60</span>, <span class="number">60</span>, <span class="number">60</span>, |
| <span class="number">60</span>, <span class="number">61</span>, <span class="number">61</span>, <span class="number">61</span>, <span class="number">61</span>, <span class="number">62</span>, <span class="number">62</span>, <span class="number">62</span>, <span class="number">62</span>, <span class="number">63</span>, <span class="number">63</span>, <span class="number">63</span>, <span class="number">63</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">65</span>, <span class="number">65</span>, <span class="number">65</span>, <span class="number">65</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, |
| <span class="number">66</span>, <span class="number">67</span>, <span class="number">67</span>, <span class="number">67</span>, <span class="number">67</span>, <span class="number">68</span>, <span class="number">68</span>, <span class="number">68</span>, <span class="number">68</span>, <span class="number">69</span>, <span class="number">69</span>, <span class="number">69</span>, <span class="number">69</span>, <span class="number">70</span>, <span class="number">70</span>, <span class="number">70</span>, <span class="number">70</span>, <span class="number">71</span>, <span class="number">71</span>, <span class="number">71</span>, <span class="number">71</span>, <span class="number">72</span>, <span class="number">72</span>, <span class="number">72</span>, |
| <span class="number">72</span>, <span class="number">73</span>, <span class="number">73</span>, <span class="number">73</span>, <span class="comment">// 300 |
| </span><span class="number">73</span>, <span class="number">73</span>, <span class="number">73</span>, <span class="number">73</span>, <span class="number">73</span>, <span class="number">74</span>, <span class="number">74</span>, <span class="number">74</span>, <span class="number">74</span>, <span class="number">75</span>, <span class="number">75</span>, <span class="number">75</span>, <span class="number">75</span>, <span class="number">76</span>, <span class="number">76</span>, <span class="number">76</span>, <span class="number">76</span>, <span class="number">77</span>, <span class="number">77</span>, <span class="number">77</span>, <span class="number">77</span>, <span class="number">78</span>, <span class="number">78</span>, <span class="number">78</span>, |
| <span class="number">78</span>, <span class="number">79</span>, <span class="number">79</span>, <span class="number">79</span>, <span class="number">79</span>, <span class="number">80</span>, <span class="number">80</span>, <span class="number">80</span>, <span class="number">80</span>, <span class="number">81</span>, <span class="number">81</span>, <span class="number">81</span>, <span class="number">81</span>, <span class="number">82</span>, <span class="number">82</span>, <span class="number">82</span>, <span class="number">82</span>, <span class="number">83</span>, <span class="number">83</span>, <span class="number">83</span>, <span class="number">83</span>, <span class="number">84</span>, <span class="number">84</span>, <span class="number">84</span>, |
| <span class="number">84</span>, <span class="number">85</span>, <span class="number">85</span>, <span class="number">85</span>, <span class="number">85</span>, <span class="number">86</span>, <span class="number">86</span>, <span class="number">86</span>, <span class="number">86</span>, <span class="number">87</span>, <span class="number">87</span>, <span class="number">87</span>, <span class="number">87</span>, <span class="number">88</span>, <span class="number">88</span>, <span class="number">88</span>, <span class="number">88</span>, <span class="number">89</span>, <span class="number">89</span>, <span class="number">89</span>, <span class="number">89</span>, <span class="number">90</span>, <span class="number">90</span>, <span class="number">90</span>, |
| <span class="number">90</span>, <span class="number">91</span>, <span class="number">91</span>, <span class="number">91</span>, <span class="number">91</span>, <span class="number">92</span>, <span class="number">92</span>, <span class="number">92</span>, <span class="number">92</span>, <span class="number">93</span>, <span class="number">93</span>, <span class="number">93</span>, <span class="number">93</span>, <span class="number">94</span>, <span class="number">94</span>, <span class="number">94</span>, <span class="number">94</span>, <span class="number">95</span>, <span class="number">95</span>, <span class="number">95</span>, <span class="number">95</span>, <span class="number">96</span>, <span class="number">96</span>, <span class="number">96</span>, |
| <span class="number">96</span>, <span class="number">97</span>, <span class="number">97</span>, <span class="number">97</span>, <span class="number">97</span>, <span class="comment">// 400+1 |
| </span>]; |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>cycle_to_yo(cycle: u32) -> (u32, u32) { |
| <span class="kw">let </span><span class="kw-2">mut </span>year_mod_400 = cycle / <span class="number">365</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>ordinal0 = cycle % <span class="number">365</span>; |
| <span class="kw">let </span>delta = YEAR_DELTAS[year_mod_400 <span class="kw">as </span>usize] <span class="kw">as </span>u32; |
| <span class="kw">if </span>ordinal0 < delta { |
| year_mod_400 -= <span class="number">1</span>; |
| ordinal0 += <span class="number">365 </span>- YEAR_DELTAS[year_mod_400 <span class="kw">as </span>usize] <span class="kw">as </span>u32; |
| } <span class="kw">else </span>{ |
| ordinal0 -= delta; |
| } |
| (year_mod_400, ordinal0 + <span class="number">1</span>) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>yo_to_cycle(year_mod_400: u32, ordinal: u32) -> u32 { |
| year_mod_400 * <span class="number">365 </span>+ YEAR_DELTAS[year_mod_400 <span class="kw">as </span>usize] <span class="kw">as </span>u32 + ordinal - <span class="number">1 |
| </span>} |
| |
| <span class="kw">impl </span>YearFlags { |
| <span class="attribute">#[allow(unreachable_pub)] </span><span class="comment">// public as an alias for benchmarks only |
| </span><span class="attribute">#[doc(hidden)] </span><span class="comment">// for benchmarks only |
| </span><span class="attribute">#[inline] |
| #[must_use] |
| </span><span class="kw">pub const fn </span>from_year(year: i32) -> YearFlags { |
| <span class="kw">let </span>year = year.rem_euclid(<span class="number">400</span>); |
| YearFlags::from_year_mod_400(year) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>from_year_mod_400(year: i32) -> YearFlags { |
| YEAR_TO_FLAGS[year <span class="kw">as </span>usize] |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>ndays(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="kw">let </span>YearFlags(flags) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="number">366 </span>- (flags >> <span class="number">3</span>) <span class="kw">as </span>u32 |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>isoweek_delta(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="kw">let </span>YearFlags(flags) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>delta = (flags & <span class="number">0b0111</span>) <span class="kw">as </span>u32; |
| <span class="kw">if </span>delta < <span class="number">3 </span>{ |
| delta += <span class="number">7</span>; |
| } |
| delta |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>nisoweeks(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="kw">let </span>YearFlags(flags) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="number">52 </span>+ ((<span class="number">0b0000_0100_0000_0110 </span>>> flags <span class="kw">as </span>usize) & <span class="number">1</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>YearFlags { |
| <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">let </span>YearFlags(flags) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="kw">match </span>flags { |
| <span class="number">0o15 </span>=> <span class="string">"A"</span>.fmt(f), |
| <span class="number">0o05 </span>=> <span class="string">"AG"</span>.fmt(f), |
| <span class="number">0o14 </span>=> <span class="string">"B"</span>.fmt(f), |
| <span class="number">0o04 </span>=> <span class="string">"BA"</span>.fmt(f), |
| <span class="number">0o13 </span>=> <span class="string">"C"</span>.fmt(f), |
| <span class="number">0o03 </span>=> <span class="string">"CB"</span>.fmt(f), |
| <span class="number">0o12 </span>=> <span class="string">"D"</span>.fmt(f), |
| <span class="number">0o02 </span>=> <span class="string">"DC"</span>.fmt(f), |
| <span class="number">0o11 </span>=> <span class="string">"E"</span>.fmt(f), |
| <span class="number">0o01 </span>=> <span class="string">"ED"</span>.fmt(f), |
| <span class="number">0o10 </span>=> <span class="string">"F?"</span>.fmt(f), |
| <span class="number">0o00 </span>=> <span class="string">"FE?"</span>.fmt(f), <span class="comment">// non-canonical |
| </span><span class="number">0o17 </span>=> <span class="string">"F"</span>.fmt(f), |
| <span class="number">0o07 </span>=> <span class="string">"FE"</span>.fmt(f), |
| <span class="number">0o16 </span>=> <span class="string">"G"</span>.fmt(f), |
| <span class="number">0o06 </span>=> <span class="string">"GF"</span>.fmt(f), |
| <span class="kw">_ </span>=> <span class="macro">write!</span>(f, <span class="string">"YearFlags({})"</span>, flags), |
| } |
| } |
| } |
| |
| <span class="comment">// OL: (ordinal << 1) | leap year flag |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>MIN_OL: u32 = <span class="number">1 </span><< <span class="number">1</span>; |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>MAX_OL: u32 = <span class="number">366 </span><< <span class="number">1</span>; <span class="comment">// `(366 << 1) | 1` would be day 366 in a non-leap year |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>MAX_MDL: u32 = (<span class="number">12 </span><< <span class="number">6</span>) | (<span class="number">31 </span><< <span class="number">1</span>) | <span class="number">1</span>; |
| |
| <span class="kw">const </span>XX: i8 = -<span class="number">128</span>; |
| <span class="kw">const </span>MDL_TO_OL: <span class="kw-2">&</span>[i8; MAX_MDL <span class="kw">as </span>usize + <span class="number">1</span>] = <span class="kw-2">&</span>[ |
| XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, |
| XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, |
| XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, <span class="comment">// 0 |
| </span>XX, XX, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, |
| <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, |
| <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="comment">// 1 |
| </span>XX, XX, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, |
| <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, |
| <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, XX, XX, XX, XX, XX, <span class="comment">// 2 |
| </span>XX, XX, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, |
| <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, |
| <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="comment">// 3 |
| </span>XX, XX, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, |
| <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, |
| <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, XX, XX, <span class="comment">// 4 |
| </span>XX, XX, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, |
| <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, |
| <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="comment">// 5 |
| </span>XX, XX, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, |
| <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, |
| <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, XX, XX, <span class="comment">// 6 |
| </span>XX, XX, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, |
| <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, |
| <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="comment">// 7 |
| </span>XX, XX, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, |
| <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, |
| <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="comment">// 8 |
| </span>XX, XX, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, |
| <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, |
| <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, XX, XX, <span class="comment">// 9 |
| </span>XX, XX, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, |
| <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, |
| <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="comment">// 10 |
| </span>XX, XX, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, |
| <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, |
| <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, XX, XX, <span class="comment">// 11 |
| </span>XX, XX, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, |
| <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, |
| <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, |
| <span class="number">100</span>, <span class="comment">// 12 |
| </span>]; |
| |
| <span class="kw">const </span>OL_TO_MDL: <span class="kw-2">&</span>[u8; MAX_OL <span class="kw">as </span>usize + <span class="number">1</span>] = <span class="kw-2">&</span>[ |
| <span class="number">0</span>, <span class="number">0</span>, <span class="comment">// 0 |
| </span><span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, |
| <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, |
| <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="number">64</span>, <span class="comment">// 1 |
| </span><span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, |
| <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, |
| <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="number">66</span>, <span class="comment">// 2 |
| </span><span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, |
| <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, |
| <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="number">74</span>, <span class="number">72</span>, <span class="comment">// 3 |
| </span><span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, |
| <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, |
| <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="number">76</span>, <span class="number">74</span>, <span class="comment">// 4 |
| </span><span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, |
| <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, |
| <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="number">80</span>, <span class="number">78</span>, <span class="comment">// 5 |
| </span><span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, |
| <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, |
| <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="number">82</span>, <span class="number">80</span>, <span class="comment">// 6 |
| </span><span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, |
| <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, |
| <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="number">86</span>, <span class="number">84</span>, <span class="comment">// 7 |
| </span><span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, |
| <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, |
| <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="number">88</span>, <span class="number">86</span>, <span class="comment">// 8 |
| </span><span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, |
| <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, |
| <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="number">90</span>, <span class="number">88</span>, <span class="comment">// 9 |
| </span><span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, |
| <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, |
| <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="number">94</span>, <span class="number">92</span>, <span class="comment">// 10 |
| </span><span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, |
| <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, |
| <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="number">96</span>, <span class="number">94</span>, <span class="comment">// 11 |
| </span><span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, |
| <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, |
| <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">100</span>, |
| <span class="number">98</span>, <span class="comment">// 12 |
| </span>]; |
| |
| <span class="doccomment">/// Ordinal (day of year) and year flags: `(ordinal << 4) | flags`. |
| /// |
| /// The whole bits except for the least 3 bits are referred as `Ol` (ordinal and leap flag), |
| /// which is an index to the `OL_TO_MDL` lookup table. |
| /// |
| /// The methods implemented on `Of` always return a valid value. |
| </span><span class="attribute">#[derive(PartialEq, PartialOrd, Copy, Clone)] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">struct </span>Of(u32); |
| |
| <span class="kw">impl </span>Of { |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>new(ordinal: u32, YearFlags(flags): YearFlags) -> <span class="prelude-ty">Option</span><Of> { |
| <span class="kw">let </span>of = Of((ordinal << <span class="number">4</span>) | flags <span class="kw">as </span>u32); |
| of.validate() |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>from_date_impl(date_impl: DateImpl) -> Of { |
| <span class="comment">// We assume the value in the `DateImpl` is valid. |
| </span>Of((date_impl & <span class="number">0b1_1111_1111_1111</span>) <span class="kw">as </span>u32) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>from_mdf(Mdf(mdf): Mdf) -> <span class="prelude-ty">Option</span><Of> { |
| <span class="kw">let </span>mdl = mdf >> <span class="number">3</span>; |
| <span class="kw">if </span>mdl > MAX_MDL { |
| <span class="comment">// Panicking on out-of-bounds indexing would be reasonable, but just return `None`. |
| </span><span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| <span class="comment">// Array is indexed from `[1..=MAX_MDL]`, with a `0` index having a meaningless value. |
| </span><span class="kw">let </span>v = MDL_TO_OL[mdl <span class="kw">as </span>usize]; |
| <span class="kw">let </span>of = Of(mdf.wrapping_sub((v <span class="kw">as </span>i32 <span class="kw">as </span>u32 & <span class="number">0x3ff</span>) << <span class="number">3</span>)); |
| of.validate() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>inner(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="self">self</span>.<span class="number">0 |
| </span>} |
| |
| <span class="doccomment">/// Returns `(ordinal << 1) | leap-year-flag`. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">const fn </span>ol(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="self">self</span>.<span class="number">0 </span>>> <span class="number">3 |
| </span>} |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">const fn </span>validate(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><Of> { |
| <span class="kw">let </span>ol = <span class="self">self</span>.ol(); |
| <span class="kw">match </span>ol >= MIN_OL && ol <= MAX_OL { |
| <span class="bool-val">true </span>=> <span class="prelude-val">Some</span>(<span class="self">self</span>), |
| <span class="bool-val">false </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>ordinal(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="self">self</span>.<span class="number">0 </span>>> <span class="number">4 |
| </span>} |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>with_ordinal(<span class="kw-2">&</span><span class="self">self</span>, ordinal: u32) -> <span class="prelude-ty">Option</span><Of> { |
| <span class="kw">let </span>of = Of((ordinal << <span class="number">4</span>) | (<span class="self">self</span>.<span class="number">0 </span>& <span class="number">0b1111</span>)); |
| of.validate() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>flags(<span class="kw-2">&</span><span class="self">self</span>) -> YearFlags { |
| YearFlags((<span class="self">self</span>.<span class="number">0 </span>& <span class="number">0b1111</span>) <span class="kw">as </span>u8) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>weekday(<span class="kw-2">&</span><span class="self">self</span>) -> Weekday { |
| <span class="kw">let </span>Of(of) = <span class="kw-2">*</span><span class="self">self</span>; |
| weekday_from_u32_mod7((of >> <span class="number">4</span>) + (of & <span class="number">0b111</span>)) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>isoweekdate_raw(<span class="kw-2">&</span><span class="self">self</span>) -> (u32, Weekday) { |
| <span class="comment">// week ordinal = ordinal + delta |
| </span><span class="kw">let </span>Of(of) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="kw">let </span>weekord = (of >> <span class="number">4</span>).wrapping_add(<span class="self">self</span>.flags().isoweek_delta()); |
| (weekord / <span class="number">7</span>, weekday_from_u32_mod7(weekord)) |
| } |
| |
| <span class="attribute">#[cfg_attr(feature = <span class="string">"cargo-clippy"</span>, allow(clippy::wrong_self_convention))] |
| #[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>to_mdf(<span class="kw-2">&</span><span class="self">self</span>) -> Mdf { |
| Mdf::from_of(<span class="kw-2">*</span><span class="self">self</span>) |
| } |
| |
| <span class="doccomment">/// Returns an `Of` with the next day, or `None` if this is the last day of the year. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>succ(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Of> { |
| <span class="kw">let </span>of = Of(<span class="self">self</span>.<span class="number">0 </span>+ (<span class="number">1 </span><< <span class="number">4</span>)); |
| of.validate() |
| } |
| |
| <span class="doccomment">/// Returns an `Of` with the previous day, or `None` if this is the first day of the year. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>pred(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Of> { |
| <span class="kw">match </span><span class="self">self</span>.ordinal() { |
| <span class="number">1 </span>=> <span class="prelude-val">None</span>, |
| <span class="kw">_ </span>=> <span class="prelude-val">Some</span>(Of(<span class="self">self</span>.<span class="number">0 </span>- (<span class="number">1 </span><< <span class="number">4</span>))), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Of { |
| <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">let </span>Of(of) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="macro">write!</span>( |
| f, |
| <span class="string">"Of(({} << 4) | {:#04o} /*{:?}*/)"</span>, |
| of >> <span class="number">4</span>, |
| of & <span class="number">0b1111</span>, |
| YearFlags((of & <span class="number">0b1111</span>) <span class="kw">as </span>u8) |
| ) |
| } |
| } |
| |
| <span class="doccomment">/// Month, day of month and year flags: `(month << 9) | (day << 4) | flags` |
| /// |
| /// The whole bits except for the least 3 bits are referred as `Mdl` |
| /// (month, day of month and leap flag), |
| /// which is an index to the `MDL_TO_OL` lookup table. |
| /// |
| /// The methods implemented on `Mdf` do not always return a valid value. |
| /// Dates that can't exist, like February 30, can still be represented. |
| /// Use `Mdl::valid` to check whether the date is valid. |
| </span><span class="attribute">#[derive(PartialEq, PartialOrd, Copy, Clone)] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">struct </span>Mdf(u32); |
| |
| <span class="kw">impl </span>Mdf { |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>new(month: u32, day: u32, YearFlags(flags): YearFlags) -> <span class="prelude-ty">Option</span><Mdf> { |
| <span class="kw">match </span>month >= <span class="number">1 </span>&& month <= <span class="number">12 </span>&& day >= <span class="number">1 </span>&& day <= <span class="number">31 </span>{ |
| <span class="bool-val">true </span>=> <span class="prelude-val">Some</span>(Mdf((month << <span class="number">9</span>) | (day << <span class="number">4</span>) | flags <span class="kw">as </span>u32)), |
| <span class="bool-val">false </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>from_of(Of(of): Of) -> Mdf { |
| <span class="kw">let </span>ol = of >> <span class="number">3</span>; |
| <span class="kw">if </span>ol <= MAX_OL { |
| <span class="comment">// Array is indexed from `[1..=MAX_OL]`, with a `0` index having a meaningless value. |
| </span>Mdf(of + ((OL_TO_MDL[ol <span class="kw">as </span>usize] <span class="kw">as </span>u32) << <span class="number">3</span>)) |
| } <span class="kw">else </span>{ |
| <span class="comment">// Panicking here would be reasonable, but we are just going on with a safe value. |
| </span>Mdf(<span class="number">0</span>) |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>valid(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="kw">let </span>Mdf(mdf) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="kw">let </span>mdl = mdf >> <span class="number">3</span>; |
| <span class="kw">if </span>mdl <= MAX_MDL { |
| <span class="comment">// Array is indexed from `[1..=MAX_MDL]`, with a `0` index having a meaningless value. |
| </span>MDL_TO_OL[mdl <span class="kw">as </span>usize] >= <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| <span class="comment">// Panicking here would be reasonable, but we are just going on with a safe value. |
| </span><span class="bool-val">false |
| </span>} |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>month(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="kw">let </span>Mdf(mdf) = <span class="kw-2">*</span><span class="self">self</span>; |
| mdf >> <span class="number">9 |
| </span>} |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>with_month(<span class="kw-2">&</span><span class="self">self</span>, month: u32) -> <span class="prelude-ty">Option</span><Mdf> { |
| <span class="kw">if </span>month > <span class="number">12 </span>{ |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| |
| <span class="kw">let </span>Mdf(mdf) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="prelude-val">Some</span>(Mdf((mdf & <span class="number">0b1_1111_1111</span>) | (month << <span class="number">9</span>))) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>day(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="kw">let </span>Mdf(mdf) = <span class="kw-2">*</span><span class="self">self</span>; |
| (mdf >> <span class="number">4</span>) & <span class="number">0b1_1111 |
| </span>} |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>with_day(<span class="kw-2">&</span><span class="self">self</span>, day: u32) -> <span class="prelude-ty">Option</span><Mdf> { |
| <span class="kw">if </span>day > <span class="number">31 </span>{ |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| |
| <span class="kw">let </span>Mdf(mdf) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="prelude-val">Some</span>(Mdf((mdf & !<span class="number">0b1_1111_0000</span>) | (day << <span class="number">4</span>))) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>with_flags(<span class="kw-2">&</span><span class="self">self</span>, YearFlags(flags): YearFlags) -> Mdf { |
| <span class="kw">let </span>Mdf(mdf) = <span class="kw-2">*</span><span class="self">self</span>; |
| Mdf((mdf & !<span class="number">0b1111</span>) | flags <span class="kw">as </span>u32) |
| } |
| |
| <span class="attribute">#[cfg_attr(feature = <span class="string">"cargo-clippy"</span>, allow(clippy::wrong_self_convention))] |
| #[inline] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const fn </span>to_of(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Of> { |
| Of::from_mdf(<span class="kw-2">*</span><span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Mdf { |
| <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">let </span>Mdf(mdf) = <span class="kw-2">*</span><span class="self">self</span>; |
| <span class="macro">write!</span>( |
| f, |
| <span class="string">"Mdf(({} << 9) | ({} << 4) | {:#04o} /*{:?}*/)"</span>, |
| mdf >> <span class="number">9</span>, |
| (mdf >> <span class="number">4</span>) & <span class="number">0b1_1111</span>, |
| mdf & <span class="number">0b1111</span>, |
| YearFlags((mdf & <span class="number">0b1111</span>) <span class="kw">as </span>u8) |
| ) |
| } |
| } |
| |
| <span class="doccomment">/// Create a `Weekday` from an `u32`, with Monday = 0. |
| /// Infallible, takes any `n` and applies `% 7`. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">const fn </span>weekday_from_u32_mod7(n: u32) -> Weekday { |
| <span class="kw">match </span>n % <span class="number">7 </span>{ |
| <span class="number">0 </span>=> Weekday::Mon, |
| <span class="number">1 </span>=> Weekday::Tue, |
| <span class="number">2 </span>=> Weekday::Wed, |
| <span class="number">3 </span>=> Weekday::Thu, |
| <span class="number">4 </span>=> Weekday::Fri, |
| <span class="number">5 </span>=> Weekday::Sat, |
| <span class="kw">_ </span>=> Weekday::Sun, |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span>std::u32; |
| |
| <span class="kw">use </span><span class="kw">super</span>::weekday_from_u32_mod7; |
| <span class="kw">use super</span>::{Mdf, Of}; |
| <span class="kw">use super</span>::{YearFlags, A, AG, B, BA, C, CB, D, DC, E, ED, F, FE, G, GF}; |
| <span class="kw">use </span><span class="kw">crate</span>::Weekday; |
| |
| <span class="kw">const </span>NONLEAP_FLAGS: [YearFlags; <span class="number">7</span>] = [A, B, C, D, E, F, G]; |
| <span class="kw">const </span>LEAP_FLAGS: [YearFlags; <span class="number">7</span>] = [AG, BA, CB, DC, ED, FE, GF]; |
| <span class="kw">const </span>FLAGS: [YearFlags; <span class="number">14</span>] = [A, B, C, D, E, F, G, AG, BA, CB, DC, ED, FE, GF]; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_year_flags_ndays_from_year() { |
| <span class="macro">assert_eq!</span>(YearFlags::from_year(<span class="number">2014</span>).ndays(), <span class="number">365</span>); |
| <span class="macro">assert_eq!</span>(YearFlags::from_year(<span class="number">2012</span>).ndays(), <span class="number">366</span>); |
| <span class="macro">assert_eq!</span>(YearFlags::from_year(<span class="number">2000</span>).ndays(), <span class="number">366</span>); |
| <span class="macro">assert_eq!</span>(YearFlags::from_year(<span class="number">1900</span>).ndays(), <span class="number">365</span>); |
| <span class="macro">assert_eq!</span>(YearFlags::from_year(<span class="number">1600</span>).ndays(), <span class="number">366</span>); |
| <span class="macro">assert_eq!</span>(YearFlags::from_year(<span class="number">1</span>).ndays(), <span class="number">365</span>); |
| <span class="macro">assert_eq!</span>(YearFlags::from_year(<span class="number">0</span>).ndays(), <span class="number">366</span>); <span class="comment">// 1 BCE (proleptic Gregorian) |
| </span><span class="macro">assert_eq!</span>(YearFlags::from_year(-<span class="number">1</span>).ndays(), <span class="number">365</span>); <span class="comment">// 2 BCE |
| </span><span class="macro">assert_eq!</span>(YearFlags::from_year(-<span class="number">4</span>).ndays(), <span class="number">366</span>); <span class="comment">// 5 BCE |
| </span><span class="macro">assert_eq!</span>(YearFlags::from_year(-<span class="number">99</span>).ndays(), <span class="number">365</span>); <span class="comment">// 100 BCE |
| </span><span class="macro">assert_eq!</span>(YearFlags::from_year(-<span class="number">100</span>).ndays(), <span class="number">365</span>); <span class="comment">// 101 BCE |
| </span><span class="macro">assert_eq!</span>(YearFlags::from_year(-<span class="number">399</span>).ndays(), <span class="number">365</span>); <span class="comment">// 400 BCE |
| </span><span class="macro">assert_eq!</span>(YearFlags::from_year(-<span class="number">400</span>).ndays(), <span class="number">366</span>); <span class="comment">// 401 BCE |
| </span>} |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_year_flags_nisoweeks() { |
| <span class="macro">assert_eq!</span>(A.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(B.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(C.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(D.nisoweeks(), <span class="number">53</span>); |
| <span class="macro">assert_eq!</span>(E.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(F.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(G.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(AG.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(BA.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(CB.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(DC.nisoweeks(), <span class="number">53</span>); |
| <span class="macro">assert_eq!</span>(ED.nisoweeks(), <span class="number">53</span>); |
| <span class="macro">assert_eq!</span>(FE.nisoweeks(), <span class="number">52</span>); |
| <span class="macro">assert_eq!</span>(GF.nisoweeks(), <span class="number">52</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_of() { |
| <span class="kw">fn </span>check(expected: bool, flags: YearFlags, ordinal1: u32, ordinal2: u32) { |
| <span class="kw">for </span>ordinal <span class="kw">in </span>ordinal1..=ordinal2 { |
| <span class="kw">let </span>of = <span class="kw">match </span>Of::new(ordinal, flags) { |
| <span class="prelude-val">Some</span>(of) => of, |
| <span class="prelude-val">None </span><span class="kw">if </span>!expected => <span class="kw">continue</span>, |
| <span class="prelude-val">None </span>=> <span class="macro">panic!</span>(<span class="string">"Of::new({}, {:?}) returned None"</span>, ordinal, flags), |
| }; |
| |
| <span class="macro">assert!</span>( |
| of.validate().is_some() == expected, |
| <span class="string">"ordinal {} = {:?} should be {} for dominical year {:?}"</span>, |
| ordinal, |
| of, |
| <span class="kw">if </span>expected { <span class="string">"valid" </span>} <span class="kw">else </span>{ <span class="string">"invalid" </span>}, |
| flags |
| ); |
| } |
| } |
| |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>NONLEAP_FLAGS.iter() { |
| check(<span class="bool-val">false</span>, flags, <span class="number">0</span>, <span class="number">0</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">1</span>, <span class="number">365</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">366</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, u32::MAX, u32::MAX); |
| } |
| |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>LEAP_FLAGS.iter() { |
| check(<span class="bool-val">false</span>, flags, <span class="number">0</span>, <span class="number">0</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">1</span>, <span class="number">366</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">367</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, u32::MAX, u32::MAX); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_mdf_valid() { |
| <span class="kw">fn </span>check(expected: bool, flags: YearFlags, month1: u32, day1: u32, month2: u32, day2: u32) { |
| <span class="kw">for </span>month <span class="kw">in </span>month1..=month2 { |
| <span class="kw">for </span>day <span class="kw">in </span>day1..=day2 { |
| <span class="kw">let </span>mdf = <span class="kw">match </span>Mdf::new(month, day, flags) { |
| <span class="prelude-val">Some</span>(mdf) => mdf, |
| <span class="prelude-val">None </span><span class="kw">if </span>!expected => <span class="kw">continue</span>, |
| <span class="prelude-val">None </span>=> <span class="macro">panic!</span>(<span class="string">"Mdf::new({}, {}, {:?}) returned None"</span>, month, day, flags), |
| }; |
| |
| <span class="macro">assert!</span>( |
| mdf.valid() == expected, |
| <span class="string">"month {} day {} = {:?} should be {} for dominical year {:?}"</span>, |
| month, |
| day, |
| mdf, |
| <span class="kw">if </span>expected { <span class="string">"valid" </span>} <span class="kw">else </span>{ <span class="string">"invalid" </span>}, |
| flags |
| ); |
| } |
| } |
| } |
| |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>NONLEAP_FLAGS.iter() { |
| check(<span class="bool-val">false</span>, flags, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">0</span>, <span class="number">0</span>, <span class="number">16</span>, <span class="number">0</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">1</span>, <span class="number">32</span>, <span class="number">1</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">2</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">28</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">2</span>, <span class="number">29</span>, <span class="number">2</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">3</span>, <span class="number">1</span>, <span class="number">3</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">3</span>, <span class="number">32</span>, <span class="number">3</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">4</span>, <span class="number">1</span>, <span class="number">4</span>, <span class="number">30</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">4</span>, <span class="number">31</span>, <span class="number">4</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">5</span>, <span class="number">1</span>, <span class="number">5</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">5</span>, <span class="number">32</span>, <span class="number">5</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">6</span>, <span class="number">1</span>, <span class="number">6</span>, <span class="number">30</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">6</span>, <span class="number">31</span>, <span class="number">6</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">7</span>, <span class="number">1</span>, <span class="number">7</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">7</span>, <span class="number">32</span>, <span class="number">7</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">8</span>, <span class="number">1</span>, <span class="number">8</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">8</span>, <span class="number">32</span>, <span class="number">8</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">9</span>, <span class="number">1</span>, <span class="number">9</span>, <span class="number">30</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">9</span>, <span class="number">31</span>, <span class="number">9</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">10</span>, <span class="number">1</span>, <span class="number">10</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">10</span>, <span class="number">32</span>, <span class="number">10</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">11</span>, <span class="number">1</span>, <span class="number">11</span>, <span class="number">30</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">11</span>, <span class="number">31</span>, <span class="number">11</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">12</span>, <span class="number">1</span>, <span class="number">12</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">12</span>, <span class="number">32</span>, <span class="number">12</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">13</span>, <span class="number">0</span>, <span class="number">16</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, u32::MAX, <span class="number">0</span>, u32::MAX, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">0</span>, u32::MAX, <span class="number">16</span>, u32::MAX); |
| check(<span class="bool-val">false</span>, flags, u32::MAX, u32::MAX, u32::MAX, u32::MAX); |
| } |
| |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>LEAP_FLAGS.iter() { |
| check(<span class="bool-val">false</span>, flags, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">0</span>, <span class="number">0</span>, <span class="number">16</span>, <span class="number">0</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">1</span>, <span class="number">32</span>, <span class="number">1</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">2</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">29</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">2</span>, <span class="number">30</span>, <span class="number">2</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">3</span>, <span class="number">1</span>, <span class="number">3</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">3</span>, <span class="number">32</span>, <span class="number">3</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">4</span>, <span class="number">1</span>, <span class="number">4</span>, <span class="number">30</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">4</span>, <span class="number">31</span>, <span class="number">4</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">5</span>, <span class="number">1</span>, <span class="number">5</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">5</span>, <span class="number">32</span>, <span class="number">5</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">6</span>, <span class="number">1</span>, <span class="number">6</span>, <span class="number">30</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">6</span>, <span class="number">31</span>, <span class="number">6</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">7</span>, <span class="number">1</span>, <span class="number">7</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">7</span>, <span class="number">32</span>, <span class="number">7</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">8</span>, <span class="number">1</span>, <span class="number">8</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">8</span>, <span class="number">32</span>, <span class="number">8</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">9</span>, <span class="number">1</span>, <span class="number">9</span>, <span class="number">30</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">9</span>, <span class="number">31</span>, <span class="number">9</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">10</span>, <span class="number">1</span>, <span class="number">10</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">10</span>, <span class="number">32</span>, <span class="number">10</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">11</span>, <span class="number">1</span>, <span class="number">11</span>, <span class="number">30</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">11</span>, <span class="number">31</span>, <span class="number">11</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">true</span>, flags, <span class="number">12</span>, <span class="number">1</span>, <span class="number">12</span>, <span class="number">31</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">12</span>, <span class="number">32</span>, <span class="number">12</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">13</span>, <span class="number">0</span>, <span class="number">16</span>, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, u32::MAX, <span class="number">0</span>, u32::MAX, <span class="number">1024</span>); |
| check(<span class="bool-val">false</span>, flags, <span class="number">0</span>, u32::MAX, <span class="number">16</span>, u32::MAX); |
| check(<span class="bool-val">false</span>, flags, u32::MAX, u32::MAX, u32::MAX, u32::MAX); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_of_fields() { |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>FLAGS.iter() { |
| <span class="kw">for </span>ordinal <span class="kw">in </span><span class="number">1u32</span>..=<span class="number">366 </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(of) = Of::new(ordinal, flags) { |
| <span class="macro">assert_eq!</span>(of.ordinal(), ordinal); |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_of_with_fields() { |
| <span class="kw">fn </span>check(flags: YearFlags, ordinal: u32) { |
| <span class="kw">let </span>of = Of::new(ordinal, flags).unwrap(); |
| |
| <span class="kw">for </span>ordinal <span class="kw">in </span><span class="number">0u32</span>..=<span class="number">1024 </span>{ |
| <span class="kw">let </span>of = of.with_ordinal(ordinal); |
| <span class="macro">assert_eq!</span>(of, Of::new(ordinal, flags)); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(of) = of { |
| <span class="macro">assert_eq!</span>(of.ordinal(), ordinal); |
| } |
| } |
| } |
| |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>NONLEAP_FLAGS.iter() { |
| check(flags, <span class="number">1</span>); |
| check(flags, <span class="number">365</span>); |
| } |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>LEAP_FLAGS.iter() { |
| check(flags, <span class="number">1</span>); |
| check(flags, <span class="number">366</span>); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_of_weekday() { |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, A).unwrap().weekday(), Weekday::Sun); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, B).unwrap().weekday(), Weekday::Sat); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, C).unwrap().weekday(), Weekday::Fri); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, D).unwrap().weekday(), Weekday::Thu); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, E).unwrap().weekday(), Weekday::Wed); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, F).unwrap().weekday(), Weekday::Tue); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, G).unwrap().weekday(), Weekday::Mon); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, AG).unwrap().weekday(), Weekday::Sun); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, BA).unwrap().weekday(), Weekday::Sat); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, CB).unwrap().weekday(), Weekday::Fri); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, DC).unwrap().weekday(), Weekday::Thu); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, ED).unwrap().weekday(), Weekday::Wed); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, FE).unwrap().weekday(), Weekday::Tue); |
| <span class="macro">assert_eq!</span>(Of::new(<span class="number">1</span>, GF).unwrap().weekday(), Weekday::Mon); |
| |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>FLAGS.iter() { |
| <span class="kw">let </span><span class="kw-2">mut </span>prev = Of::new(<span class="number">1</span>, flags).unwrap().weekday(); |
| <span class="kw">for </span>ordinal <span class="kw">in </span><span class="number">2u32</span>..=flags.ndays() { |
| <span class="kw">let </span>of = Of::new(ordinal, flags).unwrap(); |
| <span class="kw">let </span>expected = prev.succ(); |
| <span class="macro">assert_eq!</span>(of.weekday(), expected); |
| prev = expected; |
| } |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_mdf_fields() { |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>FLAGS.iter() { |
| <span class="kw">for </span>month <span class="kw">in </span><span class="number">1u32</span>..=<span class="number">12 </span>{ |
| <span class="kw">for </span>day <span class="kw">in </span><span class="number">1u32</span>..<span class="number">31 </span>{ |
| <span class="kw">let </span>mdf = <span class="kw">match </span>Mdf::new(month, day, flags) { |
| <span class="prelude-val">Some</span>(mdf) => mdf, |
| <span class="prelude-val">None </span>=> <span class="kw">continue</span>, |
| }; |
| |
| <span class="kw">if </span>mdf.valid() { |
| <span class="macro">assert_eq!</span>(mdf.month(), month); |
| <span class="macro">assert_eq!</span>(mdf.day(), day); |
| } |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_mdf_with_fields() { |
| <span class="kw">fn </span>check(flags: YearFlags, month: u32, day: u32) { |
| <span class="kw">let </span>mdf = Mdf::new(month, day, flags).unwrap(); |
| |
| <span class="kw">for </span>month <span class="kw">in </span><span class="number">0u32</span>..=<span class="number">16 </span>{ |
| <span class="kw">let </span>mdf = <span class="kw">match </span>mdf.with_month(month) { |
| <span class="prelude-val">Some</span>(mdf) => mdf, |
| <span class="prelude-val">None </span><span class="kw">if </span>month > <span class="number">12 </span>=> <span class="kw">continue</span>, |
| <span class="prelude-val">None </span>=> <span class="macro">panic!</span>(<span class="string">"failed to create Mdf with month {}"</span>, month), |
| }; |
| |
| <span class="kw">if </span>mdf.valid() { |
| <span class="macro">assert_eq!</span>(mdf.month(), month); |
| <span class="macro">assert_eq!</span>(mdf.day(), day); |
| } |
| } |
| |
| <span class="kw">for </span>day <span class="kw">in </span><span class="number">0u32</span>..=<span class="number">1024 </span>{ |
| <span class="kw">let </span>mdf = <span class="kw">match </span>mdf.with_day(day) { |
| <span class="prelude-val">Some</span>(mdf) => mdf, |
| <span class="prelude-val">None </span><span class="kw">if </span>day > <span class="number">31 </span>=> <span class="kw">continue</span>, |
| <span class="prelude-val">None </span>=> <span class="macro">panic!</span>(<span class="string">"failed to create Mdf with month {}"</span>, month), |
| }; |
| |
| <span class="kw">if </span>mdf.valid() { |
| <span class="macro">assert_eq!</span>(mdf.month(), month); |
| <span class="macro">assert_eq!</span>(mdf.day(), day); |
| } |
| } |
| } |
| |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>NONLEAP_FLAGS.iter() { |
| check(flags, <span class="number">1</span>, <span class="number">1</span>); |
| check(flags, <span class="number">1</span>, <span class="number">31</span>); |
| check(flags, <span class="number">2</span>, <span class="number">1</span>); |
| check(flags, <span class="number">2</span>, <span class="number">28</span>); |
| check(flags, <span class="number">2</span>, <span class="number">29</span>); |
| check(flags, <span class="number">12</span>, <span class="number">31</span>); |
| } |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>LEAP_FLAGS.iter() { |
| check(flags, <span class="number">1</span>, <span class="number">1</span>); |
| check(flags, <span class="number">1</span>, <span class="number">31</span>); |
| check(flags, <span class="number">2</span>, <span class="number">1</span>); |
| check(flags, <span class="number">2</span>, <span class="number">29</span>); |
| check(flags, <span class="number">2</span>, <span class="number">30</span>); |
| check(flags, <span class="number">12</span>, <span class="number">31</span>); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_of_isoweekdate_raw() { |
| <span class="kw">for </span><span class="kw-2">&</span>flags <span class="kw">in </span>FLAGS.iter() { |
| <span class="comment">// January 4 should be in the first week |
| </span><span class="kw">let </span>(week, <span class="kw">_</span>) = Of::new(<span class="number">4 </span><span class="comment">/* January 4 */</span>, flags).unwrap().isoweekdate_raw(); |
| <span class="macro">assert_eq!</span>(week, <span class="number">1</span>); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_of_to_mdf() { |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0u32</span>..=<span class="number">8192 </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(of) = Of(i).validate() { |
| <span class="macro">assert!</span>(of.to_mdf().valid()); |
| } |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_mdf_to_of() { |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0u32</span>..=<span class="number">8192 </span>{ |
| <span class="kw">let </span>mdf = Mdf(i); |
| <span class="macro">assert_eq!</span>(mdf.valid(), mdf.to_of().is_some()); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_of_to_mdf_to_of() { |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0u32</span>..=<span class="number">8192 </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(of) = Of(i).validate() { |
| <span class="macro">assert_eq!</span>(of, of.to_mdf().to_of().unwrap()); |
| } |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_mdf_to_of_to_mdf() { |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0u32</span>..=<span class="number">8192 </span>{ |
| <span class="kw">let </span>mdf = Mdf(i); |
| <span class="kw">if </span>mdf.valid() { |
| <span class="macro">assert_eq!</span>(mdf, mdf.to_of().unwrap().to_mdf()); |
| } |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_invalid_returns_none() { |
| <span class="kw">let </span>regular_year = YearFlags::from_year(<span class="number">2023</span>); |
| <span class="kw">let </span>leap_year = YearFlags::from_year(<span class="number">2024</span>); |
| <span class="macro">assert!</span>(Of::new(<span class="number">0</span>, regular_year).is_none()); |
| <span class="macro">assert!</span>(Of::new(<span class="number">366</span>, regular_year).is_none()); |
| <span class="macro">assert!</span>(Of::new(<span class="number">366</span>, leap_year).is_some()); |
| <span class="macro">assert!</span>(Of::new(<span class="number">367</span>, regular_year).is_none()); |
| |
| <span class="macro">assert!</span>(Mdf::new(<span class="number">0</span>, <span class="number">1</span>, regular_year).is_none()); |
| <span class="macro">assert!</span>(Mdf::new(<span class="number">13</span>, <span class="number">1</span>, regular_year).is_none()); |
| <span class="macro">assert!</span>(Mdf::new(<span class="number">1</span>, <span class="number">0</span>, regular_year).is_none()); |
| <span class="macro">assert!</span>(Mdf::new(<span class="number">1</span>, <span class="number">32</span>, regular_year).is_none()); |
| <span class="macro">assert!</span>(Mdf::new(<span class="number">2</span>, <span class="number">31</span>, regular_year).is_some()); |
| |
| <span class="macro">assert!</span>(Of::from_mdf(Mdf::new(<span class="number">2</span>, <span class="number">30</span>, regular_year).unwrap()).is_none()); |
| <span class="macro">assert!</span>(Of::from_mdf(Mdf::new(<span class="number">2</span>, <span class="number">30</span>, leap_year).unwrap()).is_none()); |
| <span class="macro">assert!</span>(Of::from_mdf(Mdf::new(<span class="number">2</span>, <span class="number">29</span>, regular_year).unwrap()).is_none()); |
| <span class="macro">assert!</span>(Of::from_mdf(Mdf::new(<span class="number">2</span>, <span class="number">29</span>, leap_year).unwrap()).is_some()); |
| <span class="macro">assert!</span>(Of::from_mdf(Mdf::new(<span class="number">2</span>, <span class="number">28</span>, regular_year).unwrap()).is_some()); |
| |
| <span class="macro">assert!</span>(Of::new(<span class="number">365</span>, regular_year).unwrap().succ().is_none()); |
| <span class="macro">assert!</span>(Of::new(<span class="number">365</span>, leap_year).unwrap().succ().is_some()); |
| <span class="macro">assert!</span>(Of::new(<span class="number">366</span>, leap_year).unwrap().succ().is_none()); |
| |
| <span class="macro">assert!</span>(Of::new(<span class="number">1</span>, regular_year).unwrap().pred().is_none()); |
| <span class="macro">assert!</span>(Of::new(<span class="number">1</span>, leap_year).unwrap().pred().is_none()); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_weekday_from_u32_mod7() { |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..=<span class="number">1000 </span>{ |
| <span class="macro">assert_eq!</span>(weekday_from_u32_mod7(i), Weekday::try_from((i % <span class="number">7</span>) <span class="kw">as </span>u8).unwrap()); |
| } |
| <span class="macro">assert_eq!</span>(weekday_from_u32_mod7(u32::MAX), Weekday::Thu); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="chrono" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
