| <!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/openssl-sys-0.9.88/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" 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="../../openssl_sys/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="../../openssl_sys/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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| </pre><pre class="rust"><code><span class="attribute">#![allow(unused_macros)] |
| |
| </span><span class="comment">// vendored from the cfg-if crate to avoid breaking ctest |
| </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">$e_it</span>)<span class="kw-2">*</span>) ), )* |
| ( () () ), |
| } |
| }; |
| |
| <span class="comment">// Internal and recursive macro to emit all the items |
| // |
| // Collects all the negated cfgs in a list at the beginning and after the |
| // semicolon is all the remaining items |
| </span>(@__items ($(<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">$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">$it</span>)* |
| }; |
| } |
| |
| <span class="macro">macro_rules! </span>stack { |
| (<span class="macro-nonterminal">$t</span>:ident) => { |
| <span class="macro">cfg_if! </span>{ |
| <span class="kw">if </span><span class="attribute">#[cfg(ossl110)] </span>{ |
| <span class="kw">pub enum </span><span class="macro-nonterminal">$t </span>{} |
| } <span class="kw">else </span>{ |
| <span class="attribute">#[repr(C)] |
| </span><span class="kw">pub struct </span><span class="macro-nonterminal">$t </span>{ |
| <span class="kw">pub </span>stack: <span class="macro-nonterminal">$crate::_STACK</span>, |
| } |
| } |
| } |
| }; |
| } |
| |
| <span class="comment">// openssl changes `*mut` to `*const` in certain parameters in certain versions; |
| // in C this is ABI and (mostly) API compatible. |
| // |
| // We need to handle this explicitly, and this macro helps annotate which |
| // parameter got converted in which version. |
| // |
| // Input is: |
| // extern "C" { |
| // #[attributes...] |
| // pub fn name(args) -> rettype; // `-> rettype` optional |
| // // more functions... |
| // } |
| // |
| // This macro replaces `#[const_ptr_if(...)]` in types with `*const` or `*mut` |
| // (depending on the inner cfg flags) |
| // |
| // Walks through all argument and return types, but only finds inner types of |
| // `*const` and `*mut`; doesn't walk arrays or generics. |
| // |
| // NOTE: can't abstract `pub` as `$fn_vis:vis`, as ctest macro handling doesn't |
| // support it (old syntax crate). But we really only need `pub` anyway. |
| // |
| // NOTE: ctest seams to simply ignore macros it can't expand (whatever the |
| // reason) |
| </span><span class="macro">macro_rules! </span>const_ptr_api { |
| <span class="comment">// ---------------------------------------------------------------- |
| // (partialarg): partial argument, waiting for "final" argument type |
| // MAGIC PART 1: hande conditional const ptr in argument type |
| </span>( (partialarg) |
| { $(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>:meta]</span>)* <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name</span>:ident } |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ $(<span class="macro-nonterminal">$part_arg</span>:tt)* ] |
| [ <span class="attribute">#[const_ptr_if( $(<span class="macro-nonterminal">$cfg</span>:tt)* )] </span>$(<span class="macro-nonterminal">$arg_rem</span>:tt)* ] |
| <span class="macro-nonterminal">$ret_packed</span>:tt |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (partialarg) { <span class="attribute">#[cfg($(<span class="macro-nonterminal">$cfg</span>)<span class="kw-2">*</span>)] </span>$(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>]</span>)* <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name </span>} <span class="macro-nonterminal">$args_packed </span>[ $(<span class="macro-nonterminal">$part_arg</span>)* <span class="kw-2">*const </span>] [ $(<span class="macro-nonterminal">$arg_rem</span>)* ] <span class="macro-nonterminal">$ret_packed </span>); |
| <span class="macro">const_ptr_api!</span>( (partialarg) { <span class="attribute">#[cfg(not($(<span class="macro-nonterminal">$cfg</span>)<span class="kw-2">*</span>))] </span>$(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>]</span>)* <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name </span>} <span class="macro-nonterminal">$args_packed </span>[ $(<span class="macro-nonterminal">$part_arg</span>)* <span class="kw-2">*mut </span>] [ $(<span class="macro-nonterminal">$arg_rem</span>)* ] <span class="macro-nonterminal">$ret_packed </span>); |
| }; |
| <span class="comment">// continue partial argument with `*mut` pointer (might need special const handling in inner type) |
| </span>( (partialarg) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ $(<span class="macro-nonterminal">$part_arg</span>:tt)* ] |
| [ <span class="kw-2">*mut </span>$(<span class="macro-nonterminal">$arg_rem</span>:tt)* ] |
| <span class="macro-nonterminal">$ret_packed</span>:tt |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (partialarg) <span class="macro-nonterminal">$def_packed $args_packed </span>[ $(<span class="macro-nonterminal">$part_arg</span>)* <span class="kw-2">*mut </span>] [ $(<span class="macro-nonterminal">$arg_rem</span>)* ] <span class="macro-nonterminal">$ret_packed </span>); |
| }; |
| <span class="comment">// continue partial argument with `*const` pointer (might need special const handling in inner type) |
| </span>( (partialarg) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ $(<span class="macro-nonterminal">$part_arg</span>:tt)* ] |
| [ <span class="kw-2">*const </span>$(<span class="macro-nonterminal">$arg_rem</span>:tt)* ] |
| <span class="macro-nonterminal">$ret_packed</span>:tt |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (partialarg) <span class="macro-nonterminal">$def_packed $args_packed </span>[ $(<span class="macro-nonterminal">$part_arg</span>)* <span class="kw-2">*const </span>] [ $(<span class="macro-nonterminal">$arg_rem</span>)* ] <span class="macro-nonterminal">$ret_packed </span>); |
| }; |
| <span class="comment">// finish partial argument with trailing comma |
| </span>( (partialarg) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| { $(<span class="macro-nonterminal">$args_tt</span>:tt)* } |
| [ $(<span class="macro-nonterminal">$part_arg</span>:tt)* ] |
| [ <span class="macro-nonterminal">$arg_ty</span>:ty, $(<span class="macro-nonterminal">$arg_rem</span>:tt)* ] |
| <span class="macro-nonterminal">$ret_packed</span>:tt |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (parseargs) <span class="macro-nonterminal">$def_packed </span>{ $(<span class="macro-nonterminal">$args_tt</span>)* { $(<span class="macro-nonterminal">$part_arg</span>)* <span class="macro-nonterminal">$arg_ty </span>} } [ $(<span class="macro-nonterminal">$arg_rem</span>)* ] <span class="macro-nonterminal">$ret_packed </span>); |
| }; |
| <span class="comment">// finish final partial argument (no trailing comma) |
| </span>( (partialarg) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| { $(<span class="macro-nonterminal">$args_tt</span>:tt)* } |
| [ $(<span class="macro-nonterminal">$part_arg</span>:tt)* ] |
| [ <span class="macro-nonterminal">$arg_ty</span>:ty ] |
| <span class="macro-nonterminal">$ret_packed</span>:tt |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (parseargs) <span class="macro-nonterminal">$def_packed </span>{ $(<span class="macro-nonterminal">$args_tt</span>)* { $(<span class="macro-nonterminal">$part_arg</span>)* <span class="macro-nonterminal">$arg_ty </span>} } [ ] <span class="macro-nonterminal">$ret_packed </span>); |
| }; |
| |
| <span class="comment">// ---------------------------------------------------------------- |
| // (parseargs): parsing arguments |
| // start next argument |
| </span>( (parseargs) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ <span class="macro-nonterminal">$arg_name</span>:ident : $(<span class="macro-nonterminal">$arg_rem</span>:tt)* ] |
| <span class="macro-nonterminal">$ret_packed</span>:tt |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (partialarg) <span class="macro-nonterminal">$def_packed $args_packed </span>[ <span class="macro-nonterminal">$arg_name</span>: ] [ $(<span class="macro-nonterminal">$arg_rem</span>)* ] <span class="macro-nonterminal">$ret_packed </span>); |
| }; |
| <span class="comment">// end of arguments, there is a return type; start parsing it |
| </span>( (parseargs) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ ] |
| [ -> $(<span class="macro-nonterminal">$rem</span>:tt)* ] |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (partialret) <span class="macro-nonterminal">$def_packed $args_packed </span>[] [ $(<span class="macro-nonterminal">$rem</span>)* ] ); |
| }; |
| <span class="comment">// end of arguments, no return type |
| </span>( (parseargs) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ ] |
| [ ] |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (generate) <span class="macro-nonterminal">$def_packed $args_packed </span>{ () } ); |
| }; |
| |
| <span class="comment">// ---------------------------------------------------------------- |
| // (partialret): have partial return type, waiting for final return type |
| // MAGIC PART 2: hande conditional const ptr in return type |
| </span>( (partialret) |
| { $(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>:meta]</span>)* <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name</span>:ident } |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ $(<span class="macro-nonterminal">$part_ret</span>:tt)* ] |
| [ <span class="attribute">#[const_ptr_if( $(<span class="macro-nonterminal">$cfg</span>:tt)* )] </span>$(<span class="macro-nonterminal">$rem</span>:tt)* ] |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (partialret) { <span class="attribute">#[cfg($(<span class="macro-nonterminal">$cfg</span>)<span class="kw-2">*</span>)] </span>$(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>]</span>)* <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name </span>} <span class="macro-nonterminal">$args_packed </span>[ $(<span class="macro-nonterminal">$part_ret</span>)* <span class="kw-2">*const </span>] [ $(<span class="macro-nonterminal">$rem</span>)* ] ); |
| <span class="macro">const_ptr_api!</span>( (partialret) { <span class="attribute">#[cfg(not($(<span class="macro-nonterminal">$cfg</span>)<span class="kw-2">*</span>))] </span>$(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>]</span>)* <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name </span>} <span class="macro-nonterminal">$args_packed </span>[ $(<span class="macro-nonterminal">$part_ret</span>)* <span class="kw-2">*mut </span>] [ $(<span class="macro-nonterminal">$rem</span>)* ] ); |
| }; |
| <span class="comment">// `* mut` part in return type; continue parsing to find inner conditional const ptr |
| </span>( (partialret) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ $(<span class="macro-nonterminal">$part_ret</span>:tt)* ] |
| [ <span class="kw-2">*mut </span>$(<span class="macro-nonterminal">$rem</span>:tt)* ] |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (partialret) <span class="macro-nonterminal">$def_packed $args_packed </span>[ $(<span class="macro-nonterminal">$part_ret</span>)* <span class="kw-2">*mut </span>] [ $(<span class="macro-nonterminal">$rem</span>)* ] ); |
| }; |
| <span class="comment">// `* const` part in return type; continue parsing to find inner conditional const ptr |
| </span>( (partialret) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ $(<span class="macro-nonterminal">$part_ret</span>:tt)* ] |
| [ <span class="kw-2">*const </span>$(<span class="macro-nonterminal">$rem</span>:tt)* ] |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (partialret) <span class="macro-nonterminal">$def_packed $args_packed </span>[ $(<span class="macro-nonterminal">$part_ret</span>)* <span class="kw-2">*const </span>] [ $(<span class="macro-nonterminal">$rem</span>)* ] ); |
| }; |
| <span class="comment">// final part of return type |
| </span>( (partialret) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$args_packed</span>:tt |
| [ $(<span class="macro-nonterminal">$part_ret</span>:tt)* ] |
| [ <span class="macro-nonterminal">$ret_ty</span>:ty ] |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (generate) <span class="macro-nonterminal">$def_packed $args_packed </span>{ $(<span class="macro-nonterminal">$part_ret</span>)* <span class="macro-nonterminal">$ret_ty </span>} ); |
| }; |
| |
| <span class="comment">// ---------------------------------------------------------------- |
| // generate |
| </span>( (generate) |
| { $(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>:meta]</span>)* <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name</span>:ident } |
| { $({ <span class="macro-nonterminal">$arg_name</span>:ident: $(<span class="macro-nonterminal">$arg_ty</span>:tt)* })* } |
| { <span class="macro-nonterminal">$ret_ty</span>:ty } |
| ) => { |
| <span class="kw">extern </span><span class="string">"C" </span>{ |
| $(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>]</span>)* |
| <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name</span>( $( |
| <span class="macro-nonterminal">$arg_name</span>: $(<span class="macro-nonterminal">$arg_ty</span>)* |
| ),* ) -> <span class="macro-nonterminal">$ret_ty</span>; |
| } |
| }; |
| |
| <span class="comment">// ---------------------------------------------------------------- |
| // (fn): gather tokens for return type until ";" |
| // found end; start parsing current function, and parse remaining functions |
| </span>( (<span class="kw">fn</span>) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$arg_tts_packed</span>:tt |
| <span class="macro-nonterminal">$ret_packed</span>:tt |
| [ ; $(<span class="macro-nonterminal">$rem</span>:tt)* ] |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (parseargs) <span class="macro-nonterminal">$def_packed </span>{} <span class="macro-nonterminal">$arg_tts_packed $ret_packed </span>); |
| <span class="macro">const_ptr_api!</span>( (<span class="kw">extern</span>) [ $(<span class="macro-nonterminal">$rem</span>)* ] ); |
| }; |
| <span class="comment">// not ";" - all other tokens are part of the return type. |
| // don't expand return type yet; otherwise we'd have to remember in which branch `rem` needs |
| // to be used to parse further functions. |
| </span>( (<span class="kw">fn</span>) |
| <span class="macro-nonterminal">$def_packed</span>:tt |
| <span class="macro-nonterminal">$arg_tts_packed</span>:tt |
| [ $(<span class="macro-nonterminal">$ret_tt</span>:tt)* ] |
| [ <span class="macro-nonterminal">$tt</span>:tt $(<span class="macro-nonterminal">$rem</span>:tt)* ] |
| ) => { |
| <span class="macro">const_ptr_api!</span>( (<span class="kw">fn</span>) <span class="macro-nonterminal">$def_packed $arg_tts_packed </span>[ $(<span class="macro-nonterminal">$ret_tt</span>)* <span class="macro-nonterminal">$tt </span>] [ $(<span class="macro-nonterminal">$rem</span>)* ] ); |
| }; |
| |
| <span class="comment">// ---------------------------------------------------------------- |
| // (extern): in extern block, find next function |
| // try to split into functions as fast as possible to reduce recursion depth |
| </span>( (<span class="kw">extern</span>) [ |
| $(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>:meta]</span>)* |
| <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name</span>:ident( $(<span class="macro-nonterminal">$arg_rem</span>:tt)* ) $(<span class="macro-nonterminal">$rem</span>:tt)* |
| ] ) => { |
| <span class="macro">const_ptr_api!</span>( (<span class="kw">fn</span>) |
| { $(<span class="attribute">#[<span class="macro-nonterminal">$fn_attr</span>]</span>)* <span class="kw">pub fn </span><span class="macro-nonterminal">$fn_name </span>} [ $(<span class="macro-nonterminal">$arg_rem</span>)* ] [] [ $(<span class="macro-nonterminal">$rem</span>)* ] |
| ); |
| }; |
| <span class="comment">// end of extern block |
| </span>( (<span class="kw">extern</span>) [] ) => {}; |
| |
| <span class="comment">// ---------------------------------------------------------------- |
| // macro start; find extern block |
| </span>( <span class="kw">extern </span><span class="string">"C" </span>{ $(<span class="macro-nonterminal">$rem</span>:tt)* } ) => { |
| <span class="macro">const_ptr_api!</span>( (<span class="kw">extern</span>) [ $(<span class="macro-nonterminal">$rem</span>)* ] ); |
| }; |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="openssl_sys" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
