mirror of
https://github.com/ToruNiina/toml11.git
synced 2025-12-16 03:08:52 +08:00
69 lines
16 KiB
HTML
69 lines
16 KiB
HTML
|
<!doctype html><html lang=en dir=ltr><head><meta charset=UTF-8><meta name=viewport content="width=device-width,initial-scale=1"><meta name=description content="
|
||
|
|
visit.hpp
|
||
|
|
#
|
||
|
|
|
||
|
|
In visit.hpp, toml::visit is defined.
|
||
|
|
|
||
|
|
toml::visit
|
||
|
|
#
|
||
|
|
|
||
|
|
|
||
|
|
Functions
|
||
|
|
#
|
||
|
|
|
||
|
|
namespace toml
|
||
|
|
{
|
||
|
|
template<typename Visitor, typename ... Args>
|
||
|
|
/* Return value when Visitor is called with a value of basic_value<TC> */
|
||
|
|
visit(Visitor&& visitor, Args&& ... args);
|
||
|
|
}
|
||
|
|
toml::visit calls the overload of Visitor corresponding to the type held by basic_value<TC>, and returns the result.
|
||
|
|
|
||
|
|
Requirements
|
||
|
|
#
|
||
|
|
|
||
|
|
Visitor must be a function or function object callable with any type held by basic_value<TC>."><meta name=theme-color media="(prefers-color-scheme: light)" content="#ffffff"><meta name=theme-color media="(prefers-color-scheme: dark)" content="#343a40"><meta name=color-scheme content="light dark"><meta property="og:url" content="https://toruniina.github.io/toml11/docs/reference/visit/"><meta property="og:site_name" content="toml11"><meta property="og:title" content="visit.hpp"><meta property="og:description" content="visit.hpp # In visit.hpp, toml::visit is defined.
|
||
|
|
toml::visit # Functions # namespace toml { template<typename Visitor, typename ... Args> /* Return value when Visitor is called with a value of basic_value<TC> */ visit(Visitor&& visitor, Args&& ... args); } toml::visit calls the overload of Visitor corresponding to the type held by basic_value<TC>, and returns the result.
|
||
|
|
Requirements # Visitor must be a function or function object callable with any type held by basic_value<TC>."><meta property="og:locale" content="en"><meta property="og:type" content="article"><meta property="article:section" content="docs"><title>visit.hpp | toml11</title><link rel=manifest href=/toml11/manifest.json><link rel=icon href=/toml11/favicon.png><link rel=canonical href=https://toruniina.github.io/toml11/docs/reference/visit/><link rel=alternate hreflang=ja href=https://toruniina.github.io/toml11/ja/docs/reference/visit/ title=visit.hpp><link rel=stylesheet href=/toml11/book.min.6d8037b375fe949eee1b70501c5fb9478914c9c5eb3ef7696163fd3031c69421.css integrity="sha256-bYA3s3X+lJ7uG3BQHF+5R4kUycXrPvdpYWP9MDHGlCE=" crossorigin=anonymous><script defer src=/toml11/fuse.min.js></script><script defer src=/toml11/en.search.min.87bec23503963d7026bfa3a917b92707789d315c9c9e005e23226b35dce643f5.js integrity="sha256-h77CNQOWPXAmv6OpF7knB3idMVycngBeIyJrNdzmQ/U=" crossorigin=anonymous></script></head><body dir=ltr><input type=checkbox class="hidden toggle" id=menu-control>
|
||
|
|
<input type=checkbox class="hidden toggle" id=toc-control><main class="container flex"><aside class=book-menu><div class=book-menu-content><nav><h2 class=book-brand><a class="flex align-center" href=/toml11/><span>toml11</span></a></h2><div class="book-search hidden"><input type=text id=book-search-input placeholder=Search aria-label=Search maxlength=64 data-hotkeys=s/><div class="book-search-spinner hidden"></div><ul id=book-search-results></ul></div><script>document.querySelector(".book-search").classList.remove("hidden")</script><ul class=book-languages><li><input type=checkbox id=languages class=toggle>
|
||
|
|
<label for=languages class="flex justify-between"><a role=button class="flex align-center"><img src=/toml11/svg/translate.svg class=book-icon alt=Languages>
|
||
|
|
English</a></label><ul><li><a href=https://toruniina.github.io/toml11/ja/docs/reference/visit/>日本語</a></li></ul></li></ul><ul><li><a href=/toml11/docs/installation/>installation</a><ul></ul></li><li><input type=checkbox id=section-291123c850af98d8b815ccdbb4c33657 class=toggle>
|
||
|
|
<label for=section-291123c850af98d8b815ccdbb4c33657 class="flex justify-between"><a href=/toml11/docs/features/>features</a></label><ul><li><a href=/toml11/docs/features/parsing_files/>parsing files</a></li><li><a href=/toml11/docs/features/value/>getting values</a></li><li><a href=/toml11/docs/features/error_message/>error message</a></li><li><a href=/toml11/docs/features/serialize/>serializing values</a></li><li><a href=/toml11/docs/features/configure_types/>configuring types</a></li><li><a href=/toml11/docs/features/literal/>toml literal</a></li><li><a href=/toml11/docs/features/toml_spec/>toml spec</a></li><li><a href=/toml11/docs/features/extension/>extension</a></li></ul></li><li><input type=checkbox id=section-e2e812e55021b82e114feaae98f1a02e class=toggle checked>
|
||
|
|
<label for=section-e2e812e55021b82e114feaae98f1a02e class="flex justify-between"><a href=/toml11/docs/reference/>reference</a></label><ul><li><a href=/toml11/docs/reference/color/>color.hpp</a></li><li><a href=/toml11/docs/reference/comments/>comments.hpp</a></li><li><a href=/toml11/docs/reference/conversion/>conversion.hpp</a></li><li><a href=/toml11/docs/reference/datetime/>datetime.hpp</a></li><li><a href=/toml11/docs/reference/error_info/>error_info.hpp</a></li><li><a href=/toml11/docs/reference/exception/>exception.hpp</a></li><li><a href=/toml11/docs/reference/find/>find.hpp</a></li><li><a href=/toml11/docs/reference/format/>format.hpp</a></li><li><a href=/toml11/docs/reference/from/>from.hpp</a></li><li><a href=/toml11/docs/reference/get/>get.hpp</a></li><li><a href=/toml11/docs/reference/into/>into.hpp</a></li><li><a href=/toml11/docs/reference/literal/>literal.hpp</a></li><li><a href=/toml11/docs/reference/ordered_map/>ordered_map.hpp</a></li><li><a href=/toml11/docs/reference/parser/>parser.hpp</a></li><li><a href=/toml11/docs/reference/result/>result.hpp</a></li><li><a href=/toml11/docs/reference/serializer/>serializer.hpp</a></li><li><a href=/toml11/docs/reference/source_location/>source_location.hpp</a></li><li><a href=/toml11/docs/reference/spec/>spec.hpp</a></li><li><a href=/toml11/docs/reference/toml_fwd/>toml_fwd.hpp</a></li><li><a href=/toml11/docs/reference/toml/>toml.hpp</a></li><li><a href=/toml11/docs/reference/types/>types.hpp</a></li><li><a href=/toml11/docs/reference/value_t/>value_t.hpp</a></li><li><a href=/toml11/docs/reference/value/>value.hpp</a></li><li><a href=/toml11/docs/reference/version/>version.hpp</a></li><li><a href=/toml11/docs/reference/visit/ class=active>visit.hpp</a></li></ul></li><li><a href=/toml11/docs/changelog/>changelog</a><ul></ul></li></ul><ul><li><a href=https://github.com/ToruNiina/toml11 target=_blank rel=noopener>GitHub</a></li></ul></nav><script>(function(){var e=document.querySelector("aside .book-menu-content");addEventListener("beforeunload",function(){localStorage.setItem("menu.scrollTop",e.scrollTop)}),e.scrollTop=localStorage.getItem("menu.scrollTop")})()</script></div></aside><div class=book-page><header class=book-header><div class="flex align-center justify-between"><label for=menu-control><img src=/toml11/svg/menu.svg class=book-icon alt=Menu>
|
||
|
|
</label><strong>visit.hpp</strong>
|
||
|
|
<label for=toc-control><img src=/toml11/svg/toc.svg class=book-icon alt="Table of Contents"></label></div><aside class="hidden clearfix"><nav id=TableOfContents><ul><li><a href=#visithpp>visit.hpp</a></li><li><a href=#tomlvisit><code>toml::visit</code></a><ul><li><a href=#functions>Functions</a><ul><li></li></ul></li></ul></li><li><a href=#related>Related</a></li></ul></nav></aside></header><article class="markdown book-article"><h1 id=visithpp>visit.hpp
|
||
|
|
<a class=anchor href=#visithpp>#</a></h1><p>In <code>visit.hpp</code>, <code>toml::visit</code> is defined.</p><h1 id=tomlvisit><code>toml::visit</code>
|
||
|
|
<a class=anchor href=#tomlvisit>#</a></h1><h2 id=functions>Functions
|
||
|
|
<a class=anchor href=#functions>#</a></h2><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#66d9ef>namespace</span> toml
|
||
|
|
</span></span><span style=display:flex><span>{
|
||
|
|
</span></span><span style=display:flex><span><span style=color:#66d9ef>template</span><span style=color:#f92672><</span><span style=color:#66d9ef>typename</span> Visitor, <span style=color:#66d9ef>typename</span> ... Args<span style=color:#f92672>></span>
|
||
|
|
</span></span><span style=display:flex><span><span style=color:#75715e>/* Return value when Visitor is called with a value of basic_value<TC> */</span>
|
||
|
|
</span></span><span style=display:flex><span>visit(Visitor<span style=color:#f92672>&&</span> visitor, Args<span style=color:#f92672>&&</span> ... args);
|
||
|
|
</span></span><span style=display:flex><span>}
|
||
|
|
</span></span></code></pre></div><p><code>toml::visit</code> calls the overload of <code>Visitor</code> corresponding to the type held by <code>basic_value<TC></code>, and returns the result.</p><h4 id=requirements>Requirements
|
||
|
|
<a class=anchor href=#requirements>#</a></h4><p><code>Visitor</code> must be a function or function object callable with any type held by <code>basic_value<TC></code>.</p><p>Additionally, the return value must be consistent across all overloads.</p><h4 id=example>Example
|
||
|
|
<a class=anchor href=#example>#</a></h4><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-cpp data-lang=cpp><span style=display:flex><span><span style=color:#75715e>#include</span> <span style=color:#75715e><toml.hpp></span><span style=color:#75715e>
|
||
|
|
</span></span></span><span style=display:flex><span><span style=color:#75715e>#include</span> <span style=color:#75715e><iostream></span><span style=color:#75715e>
|
||
|
|
</span></span></span><span style=display:flex><span><span style=color:#75715e></span>
|
||
|
|
</span></span><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>type_name_of</span>
|
||
|
|
</span></span><span style=display:flex><span>{
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>boolean_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"boolean"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>integer_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"integer"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>floating_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"floating"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>string_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"string"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>local_time_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"local_time"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>local_date_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"local_date"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>local_datetime_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"local_datetime"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>offset_datetime_type<span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"offset_datetime"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>array_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"array"</span>;}
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>string <span style=color:#66d9ef>operator</span>()(<span style=color:#66d9ef>const</span> toml<span style=color:#f92672>::</span>value<span style=color:#f92672>::</span>table_type <span style=color:#f92672>&</span>) <span style=color:#66d9ef>const</span> {<span style=color:#66d9ef>return</span> <span style=color:#e6db74>"table"</span>;}
|
||
|
|
</span></span><span style=display:flex><span>};
|
||
|
|
</span></span><span style=display:flex><span>
|
||
|
|
</span></span><span style=display:flex><span><span style=color:#66d9ef>int</span> <span style=color:#a6e22e>main</span>()
|
||
|
|
</span></span><span style=display:flex><span>{
|
||
|
|
</span></span><span style=display:flex><span> toml<span style=color:#f92672>::</span>value v(<span style=color:#ae81ff>3.14</span>);
|
||
|
|
</span></span><span style=display:flex><span> std<span style=color:#f92672>::</span>cout <span style=color:#f92672><<</span> toml<span style=color:#f92672>::</span>visit(type_name_of{}, v) <span style=color:#f92672><<</span> std<span style=color:#f92672>::</span>endl; <span style=color:#75715e>// floating
|
||
|
|
</span></span></span><span style=display:flex><span><span style=color:#75715e></span> <span style=color:#66d9ef>return</span> <span style=color:#ae81ff>0</span>;
|
||
|
|
</span></span><span style=display:flex><span>}
|
||
|
|
</span></span></code></pre></div><h1 id=related>Related
|
||
|
|
<a class=anchor href=#related>#</a></h1><ul><li><a href=https://toruniina.github.io/toml11/docs/reference/value/>value.hpp</a></li></ul></article><footer class=book-footer><div class="flex flex-wrap justify-between"></div><script>(function(){function e(e){const t=window.getSelection(),n=document.createRange();n.selectNodeContents(e),t.removeAllRanges(),t.addRange(n)}document.querySelectorAll("pre code").forEach(t=>{t.addEventListener("click",function(){if(window.getSelection().toString())return;e(t.parentElement),navigator.clipboard&&navigator.clipboard.writeText(t.parentElement.textContent)})})})()</script></footer><label for=menu-control class="hidden book-menu-overlay"></label></div><aside class=book-toc><div class=book-toc-content><nav id=TableOfContents><ul><li><a href=#visithpp>visit.hpp</a></li><li><a href=#tomlvisit><code>toml::visit</code></a><ul><li><a href=#functions>Functions</a><ul><li></li></ul></li></ul></li><li><a href=#related>Related</a></li></ul></nav></div></aside></main></body></html>
|