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| author | garhve <git@garhve.com> | 2022-12-20 11:04:25 +0800 |
|---|---|---|
| committer | garhve <git@garhve.com> | 2022-12-20 11:04:25 +0800 |
| commit | 369d11587339ce74f8ebc76f2607fe55545eaf7d (patch) | |
| tree | 4b25c6f7e3aca08a90b25950f4f8e4430c4294bc /rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/libc/macros.rs.html | |
| parent | 0f1b6d015243e55a38b1c1b7e8af66668e4e794d (diff) | |
Build small project following the book
Diffstat (limited to 'rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/libc/macros.rs.html')
| -rw-r--r-- | rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/libc/macros.rs.html | 688 |
1 files changed, 688 insertions, 0 deletions
diff --git a/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/libc/macros.rs.html b/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/libc/macros.rs.html new file mode 100644 index 0000000..6abaca9 --- /dev/null +++ b/rust/theBook/chapter-2-guessing-game/guessing_game/target/doc/src/libc/macros.rs.html @@ -0,0 +1,688 @@ +<!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/libc-0.2.138/src/macros.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>macros.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" 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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="../../libc/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> 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id="336">336</span> +<span id="337">337</span> +<span id="338">338</span> +<span id="339">339</span> +<span id="340">340</span> +<span id="341">341</span> +<span id="342">342</span> +<span id="343">343</span> +</pre><pre class="rust"><code><span class="doccomment">/// A macro for defining #[cfg] if-else statements. +/// +/// This 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. +</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 class="kw-2">*</span>)] </span>{ $(<span class="macro-nonterminal">$it</span>:item)* } + ) <span class="kw">else </span>* <span class="kw">else </span>{ + $(<span class="macro-nonterminal">$it2</span>:item)* + }) => { + <span class="macro">cfg_if! </span>{ + @__items + () ; + $( ( ($(<span class="macro-nonterminal">$meta</span>),<span class="kw-2">*</span>) ($(<span class="macro-nonterminal">$it</span>)<span class="kw-2">*</span>) ), )* + ( () ($(<span class="macro-nonterminal">$it2</span>)<span class="kw-2">*</span>) ), + } + }; + + <span class="comment">// match if/else chains lacking a final `else` + </span>( + <span class="kw">if </span><span class="attribute">#[cfg($(<span class="macro-nonterminal">$i_met</span>:meta),<span class="kw-2">*</span>)] </span>{ $(<span class="macro-nonterminal">$i_it</span>:item)* } + $( + <span class="kw">else if </span><span class="attribute">#[cfg($(<span class="macro-nonterminal">$e_met</span>:meta),<span class="kw-2">*</span>)] </span>{ $(<span class="macro-nonterminal">$e_it</span>:item)* } + )* + ) => { + <span class="macro">cfg_if! </span>{ + @__items + () ; + ( ($(<span class="macro-nonterminal">$i_met</span>),<span class="kw-2">*</span>) ($(<span class="macro-nonterminal">$i_it</span>)<span class="kw-2">*</span>) ), + $( ( ($(<span class="macro-nonterminal">$e_met</span>),<span class="kw-2">*</span>) ($(<span class="macro-nonterminal">$e_it</span>)<span class="kw-2">*</span>) ), )* + ( () () ), + } + }; + + <span class="comment">// Internal and recursive macro to emit all the items + // + // Collects all the negated `cfg`s in a list at the beginning and after the + // semicolon is all the remaining items + </span>(@__items ($(<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">$it</span>:item)<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 `$m` matchers specified and must also negate + // all previous matchers. + </span><span class="macro">cfg_if! </span>{ @__apply cfg(all($(<span class="macro-nonterminal">$m</span>,)* not(any($(<span class="macro-nonterminal">$not</span>),<span class="kw-2">*</span>)))), $(<span class="macro-nonterminal">$it</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 `$not` matchers as future emissions + // will have to negate everything we just matched as well. + </span><span class="macro">cfg_if! </span>{ @__items ($(<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 Apply a cfg attribute to a list of items + </span>(@__apply <span class="macro-nonterminal">$m</span>:meta, $(<span class="macro-nonterminal">$it</span>:item)<span class="kw-2">*</span>) => { + $(<span class="attribute">#[<span class="macro-nonterminal">$m</span>] </span><span class="macro-nonterminal">$it</span>)* + }; +} + +<span class="macro">macro_rules! </span>s { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub </span><span class="macro-nonterminal">$t</span>:ident <span class="macro-nonterminal">$i</span>:ident { $(<span class="macro-nonterminal">$field</span>:tt)* })<span class="kw-2">*</span>) => ($( + <span class="macro">s!</span>(it: $(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* <span class="kw">pub </span><span class="macro-nonterminal">$t $i </span>{ $(<span class="macro-nonterminal">$field</span>)* }); + )<span class="kw-2">*</span>); + (it: $(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub </span>union <span class="macro-nonterminal">$i</span>:ident { $(<span class="macro-nonterminal">$field</span>:tt)* }) => ( + <span class="macro">compile_error!</span>(<span class="string">"unions cannot derive extra traits, use s_no_extra_traits instead"</span>); + ); + (it: $(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub struct </span><span class="macro-nonterminal">$i</span>:ident { $(<span class="macro-nonterminal">$field</span>:tt)* }) => ( + <span class="macro">__item! </span>{ + <span class="attribute">#[repr(C)] + #[cfg_attr(feature = <span class="string">"extra_traits"</span>, derive(Debug, Eq, Hash, PartialEq))] + #[allow(deprecated)] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub struct </span><span class="macro-nonterminal">$i </span>{ $(<span class="macro-nonterminal">$field</span>)* } + } + <span class="attribute">#[allow(deprecated)] + </span><span class="kw">impl </span>::Copy <span class="kw">for </span><span class="macro-nonterminal">$i </span>{} + <span class="attribute">#[allow(deprecated)] + </span><span class="kw">impl </span>::Clone <span class="kw">for </span><span class="macro-nonterminal">$i </span>{ + <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="macro-nonterminal">$i </span>{ <span class="kw-2">*</span><span class="self">self </span>} + } + ); +} + +<span class="macro">macro_rules! </span>s_no_extra_traits { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub </span><span class="macro-nonterminal">$t</span>:ident <span class="macro-nonterminal">$i</span>:ident { $(<span class="macro-nonterminal">$field</span>:tt)* })<span class="kw-2">*</span>) => ($( + <span class="macro">s_no_extra_traits!</span>(it: $(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* <span class="kw">pub </span><span class="macro-nonterminal">$t $i </span>{ $(<span class="macro-nonterminal">$field</span>)* }); + )<span class="kw-2">*</span>); + (it: $(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub </span>union <span class="macro-nonterminal">$i</span>:ident { $(<span class="macro-nonterminal">$field</span>:tt)* }) => ( + <span class="macro">cfg_if! </span>{ + <span class="kw">if </span><span class="attribute">#[cfg(libc_union)] </span>{ + <span class="macro">__item! </span>{ + <span class="attribute">#[repr(C)] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub </span>union <span class="macro-nonterminal">$i </span>{ $(<span class="macro-nonterminal">$field</span>)* } + } + + <span class="kw">impl </span>::Copy <span class="kw">for </span><span class="macro-nonterminal">$i </span>{} + <span class="kw">impl </span>::Clone <span class="kw">for </span><span class="macro-nonterminal">$i </span>{ + <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="macro-nonterminal">$i </span>{ <span class="kw-2">*</span><span class="self">self </span>} + } + } + } + ); + (it: $(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub struct </span><span class="macro-nonterminal">$i</span>:ident { $(<span class="macro-nonterminal">$field</span>:tt)* }) => ( + <span class="macro">__item! </span>{ + <span class="attribute">#[repr(C)] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub struct </span><span class="macro-nonterminal">$i </span>{ $(<span class="macro-nonterminal">$field</span>)* } + } + <span class="attribute">#[allow(deprecated)] + </span><span class="kw">impl </span>::Copy <span class="kw">for </span><span class="macro-nonterminal">$i </span>{} + <span class="attribute">#[allow(deprecated)] + </span><span class="kw">impl </span>::Clone <span class="kw">for </span><span class="macro-nonterminal">$i </span>{ + <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="macro-nonterminal">$i </span>{ <span class="kw-2">*</span><span class="self">self </span>} + } + ); +} + +<span class="macro">macro_rules! </span>e { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub enum </span><span class="macro-nonterminal">$i</span>:ident { $(<span class="macro-nonterminal">$field</span>:tt)* })<span class="kw-2">*</span>) => ($( + <span class="macro">__item! </span>{ + <span class="attribute">#[cfg_attr(feature = <span class="string">"extra_traits"</span>, derive(Debug, Eq, Hash, PartialEq))] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub enum </span><span class="macro-nonterminal">$i </span>{ $(<span class="macro-nonterminal">$field</span>)* } + } + <span class="kw">impl </span>::Copy <span class="kw">for </span><span class="macro-nonterminal">$i </span>{} + <span class="kw">impl </span>::Clone <span class="kw">for </span><span class="macro-nonterminal">$i </span>{ + <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="macro-nonterminal">$i </span>{ <span class="kw-2">*</span><span class="self">self </span>} + } + )<span class="kw-2">*</span>); +} + +<span class="macro">macro_rules! </span>s_paren { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub struct </span><span class="macro-nonterminal">$i</span>:ident ( $(<span class="macro-nonterminal">$field</span>:tt)* ); )* ) => ($( + <span class="macro">__item! </span>{ + <span class="attribute">#[cfg_attr(feature = <span class="string">"extra_traits"</span>, derive(Debug, Eq, Hash, PartialEq))] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub struct </span><span class="macro-nonterminal">$i </span>( $(<span class="macro-nonterminal">$field</span>)* ); + } + <span class="kw">impl </span>::Copy <span class="kw">for </span><span class="macro-nonterminal">$i </span>{} + <span class="kw">impl </span>::Clone <span class="kw">for </span><span class="macro-nonterminal">$i </span>{ + <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="macro-nonterminal">$i </span>{ <span class="kw-2">*</span><span class="self">self </span>} + } + )<span class="kw-2">*</span>); +} + +<span class="comment">// This is a pretty horrible hack to allow us to conditionally mark +// some functions as 'const', without requiring users of this macro +// to care about the "const-extern-fn" feature. +// +// When 'const-extern-fn' is enabled, we emit the captured 'const' keyword +// in the expanded function. +// +// When 'const-extern-fn' is disabled, we always emit a plain 'pub unsafe extern fn'. +// Note that the expression matched by the macro is exactly the same - this allows +// users of this macro to work whether or not 'const-extern-fn' is enabled +// +// Unfortunately, we need to duplicate most of this macro between the 'cfg_if' blocks. +// This is because 'const unsafe extern fn' won't even parse on older compilers, +// so we need to avoid emitting it at all of 'const-extern-fn'. +// +// Specifically, moving the 'cfg_if' into the macro body will *not* work. +// Doing so would cause the '#[cfg(feature = "const-extern-fn")]' to be emitted +// into user code. The 'cfg' gate will not stop Rust from trying to parse the +// 'pub const unsafe extern fn', so users would get a compiler error even when +// the 'const-extern-fn' feature is disabled +// +// Note that users of this macro need to place 'const' in a weird position +// (after the closing ')' for the arguments, but before the return type). +// This was the only way I could satisfy the following two requirements: +// 1. Avoid ambiguity errors from 'macro_rules!' (which happen when writing '$foo:ident fn' +// 2. Allow users of this macro to mix 'pub fn foo' and 'pub const fn bar' within the same +// 'f!' block +</span><span class="macro">cfg_if! </span>{ + <span class="kw">if </span><span class="attribute">#[cfg(libc_const_extern_fn)] </span>{ + <span class="macro">macro_rules! </span>f { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub </span>$({<span class="macro-nonterminal">$constness</span>:ident})* <span class="kw">fn </span><span class="macro-nonterminal">$i</span>:ident( + $(<span class="macro-nonterminal">$arg</span>:ident: <span class="macro-nonterminal">$argty</span>:ty),* + ) -> <span class="macro-nonterminal">$ret</span>:ty { + $(<span class="macro-nonterminal">$body</span>:stmt);* + })<span class="kw-2">*</span>) => ($( + <span class="attribute">#[inline] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub </span>$(<span class="macro-nonterminal">$constness</span>)* <span class="kw">unsafe extern fn </span><span class="macro-nonterminal">$i</span>($(<span class="macro-nonterminal">$arg</span>: <span class="macro-nonterminal">$argty</span>),* + ) -> <span class="macro-nonterminal">$ret </span>{ + $(<span class="macro-nonterminal">$body</span>);* + } + )<span class="kw-2">*</span>) + } + + <span class="macro">macro_rules! </span>safe_f { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub </span>$({<span class="macro-nonterminal">$constness</span>:ident})* <span class="kw">fn </span><span class="macro-nonterminal">$i</span>:ident( + $(<span class="macro-nonterminal">$arg</span>:ident: <span class="macro-nonterminal">$argty</span>:ty),* + ) -> <span class="macro-nonterminal">$ret</span>:ty { + $(<span class="macro-nonterminal">$body</span>:stmt);* + })<span class="kw-2">*</span>) => ($( + <span class="attribute">#[inline] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub </span>$(<span class="macro-nonterminal">$constness</span>)* <span class="kw">extern fn </span><span class="macro-nonterminal">$i</span>($(<span class="macro-nonterminal">$arg</span>: <span class="macro-nonterminal">$argty</span>),* + ) -> <span class="macro-nonterminal">$ret </span>{ + $(<span class="macro-nonterminal">$body</span>);* + } + )<span class="kw-2">*</span>) + } + + <span class="macro">macro_rules! </span>const_fn { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* $({<span class="macro-nonterminal">$constness</span>:ident})* <span class="kw">fn </span><span class="macro-nonterminal">$i</span>:ident( + $(<span class="macro-nonterminal">$arg</span>:ident: <span class="macro-nonterminal">$argty</span>:ty),* + ) -> <span class="macro-nonterminal">$ret</span>:ty { + $(<span class="macro-nonterminal">$body</span>:stmt);* + })<span class="kw-2">*</span>) => ($( + <span class="attribute">#[inline] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + $(<span class="macro-nonterminal">$constness</span>)* <span class="kw">fn </span><span class="macro-nonterminal">$i</span>($(<span class="macro-nonterminal">$arg</span>: <span class="macro-nonterminal">$argty</span>),* + ) -> <span class="macro-nonterminal">$ret </span>{ + $(<span class="macro-nonterminal">$body</span>);* + } + )<span class="kw-2">*</span>) + } + + } <span class="kw">else </span>{ + <span class="macro">macro_rules! </span>f { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub </span>$({<span class="macro-nonterminal">$constness</span>:ident})* <span class="kw">fn </span><span class="macro-nonterminal">$i</span>:ident( + $(<span class="macro-nonterminal">$arg</span>:ident: <span class="macro-nonterminal">$argty</span>:ty),* + ) -> <span class="macro-nonterminal">$ret</span>:ty { + $(<span class="macro-nonterminal">$body</span>:stmt);* + })<span class="kw-2">*</span>) => ($( + <span class="attribute">#[inline] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub unsafe extern fn </span><span class="macro-nonterminal">$i</span>($(<span class="macro-nonterminal">$arg</span>: <span class="macro-nonterminal">$argty</span>),* + ) -> <span class="macro-nonterminal">$ret </span>{ + $(<span class="macro-nonterminal">$body</span>);* + } + )<span class="kw-2">*</span>) + } + + <span class="macro">macro_rules! </span>safe_f { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* <span class="kw">pub </span>$({<span class="macro-nonterminal">$constness</span>:ident})* <span class="kw">fn </span><span class="macro-nonterminal">$i</span>:ident( + $(<span class="macro-nonterminal">$arg</span>:ident: <span class="macro-nonterminal">$argty</span>:ty),* + ) -> <span class="macro-nonterminal">$ret</span>:ty { + $(<span class="macro-nonterminal">$body</span>:stmt);* + })<span class="kw-2">*</span>) => ($( + <span class="attribute">#[inline] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub extern fn </span><span class="macro-nonterminal">$i</span>($(<span class="macro-nonterminal">$arg</span>: <span class="macro-nonterminal">$argty</span>),* + ) -> <span class="macro-nonterminal">$ret </span>{ + $(<span class="macro-nonterminal">$body</span>);* + } + )<span class="kw-2">*</span>) + } + + <span class="macro">macro_rules! </span>const_fn { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* $({<span class="macro-nonterminal">$constness</span>:ident})* <span class="kw">fn </span><span class="macro-nonterminal">$i</span>:ident( + $(<span class="macro-nonterminal">$arg</span>:ident: <span class="macro-nonterminal">$argty</span>:ty),* + ) -> <span class="macro-nonterminal">$ret</span>:ty { + $(<span class="macro-nonterminal">$body</span>:stmt);* + })<span class="kw-2">*</span>) => ($( + <span class="attribute">#[inline] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">fn </span><span class="macro-nonterminal">$i</span>($(<span class="macro-nonterminal">$arg</span>: <span class="macro-nonterminal">$argty</span>),* + ) -> <span class="macro-nonterminal">$ret </span>{ + $(<span class="macro-nonterminal">$body</span>);* + } + )<span class="kw-2">*</span>) + } + } +} + +<span class="macro">macro_rules! </span>__item { + (<span class="macro-nonterminal">$i</span>:item) => { + <span class="macro-nonterminal">$i + </span>}; +} + +<span class="macro">macro_rules! </span>align_const { + ($($(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>:meta]</span>)* + <span class="kw">pub const </span><span class="macro-nonterminal">$name</span>:ident : <span class="macro-nonterminal">$t1</span>:ty + = <span class="macro-nonterminal">$t2</span>:ident { $(<span class="macro-nonterminal">$field</span>:tt)* };)<span class="kw-2">*</span>) => ($( + <span class="attribute">#[cfg(libc_align)] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub const </span><span class="macro-nonterminal">$name </span>: <span class="macro-nonterminal">$t1 </span>= <span class="macro-nonterminal">$t2 </span>{ + $(<span class="macro-nonterminal">$field</span>)* + }; + <span class="attribute">#[cfg(not(libc_align))] + </span>$(<span class="attribute">#[<span class="macro-nonterminal">$attr</span>]</span>)* + <span class="kw">pub const </span><span class="macro-nonterminal">$name </span>: <span class="macro-nonterminal">$t1 </span>= <span class="macro-nonterminal">$t2 </span>{ + $(<span class="macro-nonterminal">$field</span>)* + __align: [], + }; + )<span class="kw-2">*</span>) +} + +<span class="comment">// This macro is used to deprecate items that should be accessed via the mach2 crate +</span><span class="macro">macro_rules! </span>deprecated_mach { + (<span class="kw">pub const </span><span class="macro-nonterminal">$id</span>:ident: <span class="macro-nonterminal">$ty</span>:ty = <span class="macro-nonterminal">$expr</span>:expr;) => { + <span class="attribute">#[deprecated( + since = <span class="string">"0.2.55"</span>, + note = <span class="string">"Use the `mach2` crate instead"</span>, + )] + #[allow(deprecated)] + </span><span class="kw">pub const </span><span class="macro-nonterminal">$id</span>: <span class="macro-nonterminal">$ty </span>= <span class="macro-nonterminal">$expr</span>; + }; + ($(<span class="kw">pub const </span><span class="macro-nonterminal">$id</span>:ident: <span class="macro-nonterminal">$ty</span>:ty = <span class="macro-nonterminal">$expr</span>:expr;)<span class="kw-2">*</span>) => { + $( + <span class="macro">deprecated_mach!</span>( + <span class="kw">pub const </span><span class="macro-nonterminal">$id</span>: <span class="macro-nonterminal">$ty </span>= <span class="macro-nonterminal">$expr</span>; + ); + )* + }; + (<span class="kw">pub type </span><span class="macro-nonterminal">$id</span>:ident = <span class="macro-nonterminal">$ty</span>:ty;) => { + <span class="attribute">#[deprecated( + since = <span class="string">"0.2.55"</span>, + note = <span class="string">"Use the `mach2` crate instead"</span>, + )] + #[allow(deprecated)] + </span><span class="kw">pub type </span><span class="macro-nonterminal">$id </span>= <span class="macro-nonterminal">$ty</span>; + }; + ($(<span class="kw">pub type </span><span class="macro-nonterminal">$id</span>:ident = <span class="macro-nonterminal">$ty</span>:ty;)<span class="kw-2">*</span>) => { + $( + <span class="macro">deprecated_mach!</span>( + <span class="kw">pub type </span><span class="macro-nonterminal">$id </span>= <span class="macro-nonterminal">$ty</span>; + ); + )* + } +} + +<span class="attribute">#[cfg(not(libc_ptr_addr_of))] +</span><span class="macro">macro_rules! </span>ptr_addr_of { + (<span class="macro-nonterminal">$place</span>:expr) => { + <span class="kw-2">&</span><span class="macro-nonterminal">$place + </span>}; +} + +<span class="attribute">#[cfg(libc_ptr_addr_of)] +</span><span class="macro">macro_rules! </span>ptr_addr_of { + (<span class="macro-nonterminal">$place</span>:expr) => { + <span class="macro">::core::ptr::addr_of!</span>(<span class="macro-nonterminal">$place</span>) + }; +} +</code></pre></div> +</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="libc" 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>
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