diff options
Diffstat (limited to 'rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/cfg_if')
| -rw-r--r-- | rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/cfg_if/lib.rs.html | 354 |
1 files changed, 0 insertions, 354 deletions
diff --git a/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/cfg_if/lib.rs.html b/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/cfg_if/lib.rs.html deleted file mode 100644 index 8c9fb7c..0000000 --- a/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/cfg_if/lib.rs.html +++ /dev/null @@ -1,354 +0,0 @@ -<!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 `/home/pico/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/cfg-if-1.0.0/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../cfg_if/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><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></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> -<span id="2">2</span> -<span id="3">3</span> -<span id="4">4</span> -<span id="5">5</span> -<span id="6">6</span> -<span id="7">7</span> -<span id="8">8</span> -<span id="9">9</span> -<span id="10">10</span> -<span id="11">11</span> -<span id="12">12</span> -<span id="13">13</span> -<span id="14">14</span> -<span id="15">15</span> -<span id="16">16</span> -<span id="17">17</span> -<span id="18">18</span> -<span id="19">19</span> -<span id="20">20</span> -<span id="21">21</span> -<span id="22">22</span> -<span id="23">23</span> -<span id="24">24</span> -<span id="25">25</span> -<span id="26">26</span> -<span id="27">27</span> -<span id="28">28</span> -<span id="29">29</span> -<span id="30">30</span> -<span id="31">31</span> -<span id="32">32</span> -<span id="33">33</span> -<span id="34">34</span> -<span id="35">35</span> -<span id="36">36</span> -<span id="37">37</span> -<span id="38">38</span> -<span id="39">39</span> -<span id="40">40</span> -<span id="41">41</span> -<span id="42">42</span> -<span id="43">43</span> -<span id="44">44</span> -<span id="45">45</span> -<span id="46">46</span> -<span id="47">47</span> -<span id="48">48</span> -<span id="49">49</span> -<span id="50">50</span> -<span id="51">51</span> -<span id="52">52</span> -<span id="53">53</span> -<span id="54">54</span> -<span id="55">55</span> -<span id="56">56</span> -<span id="57">57</span> -<span id="58">58</span> -<span id="59">59</span> -<span id="60">60</span> -<span id="61">61</span> -<span id="62">62</span> -<span id="63">63</span> -<span id="64">64</span> -<span id="65">65</span> -<span id="66">66</span> -<span id="67">67</span> -<span id="68">68</span> -<span id="69">69</span> -<span id="70">70</span> -<span id="71">71</span> -<span id="72">72</span> -<span id="73">73</span> -<span id="74">74</span> -<span id="75">75</span> -<span id="76">76</span> -<span id="77">77</span> -<span id="78">78</span> -<span id="79">79</span> -<span id="80">80</span> -<span id="81">81</span> -<span id="82">82</span> -<span id="83">83</span> -<span id="84">84</span> -<span id="85">85</span> -<span id="86">86</span> -<span id="87">87</span> -<span id="88">88</span> -<span id="89">89</span> -<span id="90">90</span> -<span id="91">91</span> -<span id="92">92</span> -<span id="93">93</span> -<span id="94">94</span> -<span id="95">95</span> -<span id="96">96</span> -<span id="97">97</span> -<span id="98">98</span> -<span id="99">99</span> -<span id="100">100</span> -<span id="101">101</span> -<span id="102">102</span> -<span id="103">103</span> -<span id="104">104</span> -<span id="105">105</span> -<span id="106">106</span> -<span id="107">107</span> -<span id="108">108</span> -<span id="109">109</span> -<span id="110">110</span> -<span id="111">111</span> -<span id="112">112</span> -<span id="113">113</span> -<span id="114">114</span> -<span id="115">115</span> -<span id="116">116</span> -<span id="117">117</span> -<span id="118">118</span> -<span id="119">119</span> -<span id="120">120</span> -<span id="121">121</span> -<span id="122">122</span> -<span id="123">123</span> -<span id="124">124</span> -<span id="125">125</span> -<span id="126">126</span> -<span id="127">127</span> -<span id="128">128</span> -<span id="129">129</span> -<span id="130">130</span> -<span id="131">131</span> -<span id="132">132</span> -<span id="133">133</span> -<span id="134">134</span> -<span id="135">135</span> -<span id="136">136</span> -<span id="137">137</span> -<span id="138">138</span> -<span id="139">139</span> -<span id="140">140</span> -<span id="141">141</span> -<span id="142">142</span> -<span id="143">143</span> -<span id="144">144</span> -<span id="145">145</span> -<span id="146">146</span> -<span id="147">147</span> -<span id="148">148</span> -<span id="149">149</span> -<span id="150">150</span> -<span id="151">151</span> -<span id="152">152</span> -<span id="153">153</span> -<span id="154">154</span> -<span id="155">155</span> -<span id="156">156</span> -<span id="157">157</span> -<span id="158">158</span> -<span id="159">159</span> -<span id="160">160</span> -<span id="161">161</span> -<span id="162">162</span> -<span id="163">163</span> -<span id="164">164</span> -<span id="165">165</span> -<span id="166">166</span> -<span id="167">167</span> -<span id="168">168</span> -<span id="169">169</span> -<span id="170">170</span> -<span id="171">171</span> -<span id="172">172</span> -<span id="173">173</span> -<span id="174">174</span> -<span id="175">175</span> -<span id="176">176</span> -</pre><pre class="rust"><code><span class="doccomment">//! A macro for defining `#[cfg]` if-else statements. -//! -//! The macro provided by this crate, `cfg_if`, is similar to the `if/elif` C -//! preprocessor macro by allowing definition of a cascade of `#[cfg]` cases, -//! emitting the implementation which matches first. -//! -//! This allows you to conveniently provide a long list `#[cfg]`'d blocks of code -//! without having to rewrite each clause multiple times. -//! -//! # Example -//! -//! ``` -//! cfg_if::cfg_if! { -//! if #[cfg(unix)] { -//! fn foo() { /* unix specific functionality */ } -//! } else if #[cfg(target_pointer_width = "32")] { -//! fn foo() { /* non-unix, 32-bit functionality */ } -//! } else { -//! fn foo() { /* fallback implementation */ } -//! } -//! } -//! -//! # fn main() {} -//! ``` - -</span><span class="attribute">#![no_std] -#![doc(html_root_url = <span class="string">"https://docs.rs/cfg-if"</span>)] -#![deny(missing_docs)] -#![cfg_attr(test, deny(warnings))] - -</span><span class="doccomment">/// The main macro provided by this crate. See crate documentation for more -/// information. -</span><span class="attribute">#[macro_export] -</span><span class="macro">macro_rules! </span>cfg_if { - <span class="comment">// match if/else chains with a final `else` - </span>($( - <span class="kw">if </span><span class="attribute">#[cfg(<span class="macro-nonterminal">$meta</span>:meta)] </span>{ $(<span class="macro-nonterminal">$tokens</span>:tt)* } - ) <span class="kw">else </span>* <span class="kw">else </span>{ - $(<span class="macro-nonterminal">$tokens2</span>:tt)* - }) => { - <span class="macro-nonterminal">$</span><span class="macro">crate::cfg_if! </span>{ - @<span class="macro-nonterminal">__items - </span>() ; - $( ( (<span class="macro-nonterminal">$meta</span>) ($(<span class="macro-nonterminal">$tokens</span>)<span class="kw-2">*</span>) ), )* - ( () ($(<span class="macro-nonterminal">$tokens2</span>)<span class="kw-2">*</span>) ), - } - }; - - <span class="comment">// match if/else chains lacking a final `else` - </span>( - <span class="kw">if </span><span class="attribute">#[cfg(<span class="macro-nonterminal">$i_met</span>:meta)] </span>{ $(<span class="macro-nonterminal">$i_tokens</span>:tt)* } - $( - <span class="kw">else if </span><span class="attribute">#[cfg(<span class="macro-nonterminal">$e_met</span>:meta)] </span>{ $(<span class="macro-nonterminal">$e_tokens</span>:tt)* } - )* - ) => { - <span class="macro-nonterminal">$</span><span class="macro">crate::cfg_if! </span>{ - @<span class="macro-nonterminal">__items - </span>() ; - ( (<span class="macro-nonterminal">$i_met</span>) ($(<span class="macro-nonterminal">$i_tokens</span>)<span class="kw-2">*</span>) ), - $( ( (<span class="macro-nonterminal">$e_met</span>) ($(<span class="macro-nonterminal">$e_tokens</span>)<span class="kw-2">*</span>) ), )* - ( () () ), - } - }; - - <span class="comment">// Internal and recursive macro to emit all the items - // - // Collects all the negated cfgs in a list at the beginning and after the - // semicolon is all the remaining items - </span>(@__items ($(<span class="macro-nonterminal">$not</span>:meta,)<span class="kw-2">*</span>) ; ) => {}; - (@__items ($(<span class="macro-nonterminal">$not</span>:meta,)<span class="kw-2">*</span>) ; ( ($(<span class="macro-nonterminal">$m</span>:meta),<span class="kw-2">*</span>) ($(<span class="macro-nonterminal">$tokens</span>:tt)<span class="kw-2">*</span>) ), $(<span class="macro-nonterminal">$rest</span>:tt)<span class="kw-2">*</span>) => { - <span class="comment">// Emit all items within one block, applying an appropriate #[cfg]. The - // #[cfg] will require all `$m` matchers specified and must also negate - // all previous matchers. - </span><span class="attribute">#[cfg(all($(<span class="macro-nonterminal">$m</span>,)* not(any($(<span class="macro-nonterminal">$not</span>),<span class="kw-2">*</span>))))] </span><span class="macro-nonterminal">$</span><span class="macro">crate::cfg_if! </span>{ @<span class="macro-nonterminal">__identity </span>$(<span class="macro-nonterminal">$tokens</span>)* } - - <span class="comment">// Recurse to emit all other items in `$rest`, and when we do so add all - // our `$m` matchers to the list of `$not` matchers as future emissions - // will have to negate everything we just matched as well. - </span><span class="macro-nonterminal">$</span><span class="macro">crate::cfg_if! </span>{ @<span class="macro-nonterminal">__items </span>($(<span class="macro-nonterminal">$not</span>,)* $(<span class="macro-nonterminal">$m</span>,)<span class="kw-2">*</span>) ; $(<span class="macro-nonterminal">$rest</span>)* } - }; - - <span class="comment">// Internal macro to make __apply work out right for different match types, - // because of how macros matching/expand stuff. - </span>(@__identity $(<span class="macro-nonterminal">$tokens</span>:tt)<span class="kw-2">*</span>) => { - $(<span class="macro-nonterminal">$tokens</span>)* - }; -} - -<span class="attribute">#[cfg(test)] -</span><span class="kw">mod </span>tests { - <span class="macro">cfg_if! </span>{ - <span class="kw">if </span><span class="attribute">#[cfg(test)] </span>{ - <span class="kw">use </span>core::option::Option <span class="kw">as </span>Option2; - <span class="kw">fn </span>works1() -> Option2<u32> { <span class="prelude-val">Some</span>(<span class="number">1</span>) } - } <span class="kw">else </span>{ - <span class="kw">fn </span>works1() -> <span class="prelude-ty">Option</span><u32> { <span class="prelude-val">None </span>} - } - } - - <span class="macro">cfg_if! </span>{ - <span class="kw">if </span><span class="attribute">#[cfg(foo)] </span>{ - <span class="kw">fn </span>works2() -> bool { <span class="bool-val">false </span>} - } <span class="kw">else if </span><span class="attribute">#[cfg(test)] </span>{ - <span class="kw">fn </span>works2() -> bool { <span class="bool-val">true </span>} - } <span class="kw">else </span>{ - <span class="kw">fn </span>works2() -> bool { <span class="bool-val">false </span>} - } - } - - <span class="macro">cfg_if! </span>{ - <span class="kw">if </span><span class="attribute">#[cfg(foo)] </span>{ - <span class="kw">fn </span>works3() -> bool { <span class="bool-val">false </span>} - } <span class="kw">else </span>{ - <span class="kw">fn </span>works3() -> bool { <span class="bool-val">true </span>} - } - } - - <span class="macro">cfg_if! </span>{ - <span class="kw">if </span><span class="attribute">#[cfg(test)] </span>{ - <span class="kw">use </span>core::option::Option <span class="kw">as </span>Option3; - <span class="kw">fn </span>works4() -> Option3<u32> { <span class="prelude-val">Some</span>(<span class="number">1</span>) } - } - } - - <span class="macro">cfg_if! </span>{ - <span class="kw">if </span><span class="attribute">#[cfg(foo)] </span>{ - <span class="kw">fn </span>works5() -> bool { <span class="bool-val">false </span>} - } <span class="kw">else if </span><span class="attribute">#[cfg(test)] </span>{ - <span class="kw">fn </span>works5() -> bool { <span class="bool-val">true </span>} - } - } - - <span class="attribute">#[test] - </span><span class="kw">fn </span>it_works() { - <span class="macro">assert!</span>(works1().is_some()); - <span class="macro">assert!</span>(works2()); - <span class="macro">assert!</span>(works3()); - <span class="macro">assert!</span>(works4().is_some()); - <span class="macro">assert!</span>(works5()); - } - - <span class="attribute">#[test] - #[allow(clippy::assertions_on_constants)] - </span><span class="kw">fn </span>test_usage_within_a_function() { - <span class="macro">cfg_if! </span>{<span class="kw">if </span><span class="attribute">#[cfg(debug_assertions)] </span>{ - <span class="comment">// we want to put more than one thing here to make sure that they - // all get configured properly. - </span><span class="macro">assert!</span>(<span class="macro">cfg!</span>(debug_assertions)); - <span class="macro">assert_eq!</span>(<span class="number">4</span>, <span class="number">2</span>+<span class="number">2</span>); - } <span class="kw">else </span>{ - <span class="macro">assert!</span>(works1().is_some()); - <span class="macro">assert_eq!</span>(<span class="number">10</span>, <span class="number">5</span>+<span class="number">5</span>); - }} - } - - <span class="kw">trait </span>Trait { - <span class="kw">fn </span>blah(<span class="kw-2">&</span><span class="self">self</span>); - } - - <span class="attribute">#[allow(dead_code)] - </span><span class="kw">struct </span>Struct; - - <span class="kw">impl </span>Trait <span class="kw">for </span>Struct { - <span class="macro">cfg_if! </span>{ - <span class="kw">if </span><span class="attribute">#[cfg(feature = <span class="string">"blah"</span>)] </span>{ - <span class="kw">fn </span>blah(<span class="kw-2">&</span><span class="self">self</span>) { - <span class="macro">unimplemented!</span>(); - } - } <span class="kw">else </span>{ - <span class="kw">fn </span>blah(<span class="kw-2">&</span><span class="self">self</span>) { - <span class="macro">unimplemented!</span>(); - } - } - } - } -} -</code></pre></div> -</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="cfg_if" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0 (69f9c33d7 2022-12-12) (Arch Linux rust 1:1.66.0-1)" ></div></body></html>
\ No newline at end of file |