auxolotl/docs
26
0
Fork 1
mirror of https://git.gay/pyrox/aux-docs synced 2024-11-23 11:57:56 +00:00
Code Issues Packages Projects Releases Wiki Activity
docs/Lix/language/advanced-attributes/index.html

2127 lines
55 KiB
HTML
Raw Normal View History

Deploy cd4936a to pages...pages.gay
2024-07-24 19:14:02 +00:00
<!doctype html>
<html lang="en" class="no-js">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<meta name="description" content="Aux Documentation">
<meta name="author" content="Nixpkgs Aux, and Lix Contributors">
<link rel="canonical" href="https://docs.auxolotl.org/Lix/language/advanced-attributes/">
<link rel="prev" href="../">
<link rel="next" href="../builtin-constants/">
<link rel="icon" href="../../../assets/aux-logo.svg">
<meta name="generator" content="mkdocs-1.6.0, mkdocs-material-9.5.29">
<title>Advanced Attributes - Aux Docs</title>
<link rel="stylesheet" href="../../../assets/stylesheets/main.76a95c52.min.css">
<link rel="stylesheet" href="../../../assets/stylesheets/palette.06af60db.min.css">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.bunny.net/css?family=IBM+Plex+Sans:300,300i,400,400i,700,700i%7CIBM+Plex+Mono:400,400i,700,700i&display=fallback">
<style>:root{--md-text-font:"IBM Plex Sans";--md-code-font:"IBM Plex Mono"}</style>
<script>__md_scope=new URL("../../..",location),__md_hash=e=>[...e].reduce((e,_)=>(e<<5)-e+_.charCodeAt(0),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
<meta property="og:type" content="website" >
<meta property="og:title" content="Advanced Attributes - Aux Docs" >
<meta property="og:description" content="Aux Documentation" >
<meta property="og:image" content="https://docs.auxolotl.org/assets/images/social/Lix/language/advanced-attributes.png" >
<meta property="og:image:type" content="image/png" >
<meta property="og:image:width" content="1200" >
<meta property="og:image:height" content="630" >
<meta property="og:url" content="https://docs.auxolotl.org/Lix/language/advanced-attributes/" >
<meta name="twitter:card" content="summary_large_image" >
<meta name="twitter:title" content="Advanced Attributes - Aux Docs" >
<meta name="twitter:description" content="Aux Documentation" >
<meta name="twitter:image" content="https://docs.auxolotl.org/assets/images/social/Lix/language/advanced-attributes.png" >
</head>
<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="indigo" data-md-color-accent="blue">
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
<label class="md-overlay" for="__drawer"></label>
<div data-md-component="skip">
<a href="#advanced-attributes" class="md-skip">
Skip to content
</a>
</div>
<div data-md-component="announce">
</div>
<header class="md-header" data-md-component="header">
<nav class="md-header__inner md-grid" aria-label="Header">
<a href="../../.." title="Aux Docs" class="md-header__button md-logo" aria-label="Aux Docs" data-md-component="logo">
<img src="../../../assets/aux-logo.svg" alt="logo">
</a>
<label class="md-header__button md-icon" for="__drawer">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2Z"/></svg>
</label>
<div class="md-header__title" data-md-component="header-title">
<div class="md-header__ellipsis">
<div class="md-header__topic">
<span class="md-ellipsis">
Aux Docs
</span>
</div>
<div class="md-header__topic" data-md-component="header-topic">
<span class="md-ellipsis">
Advanced Attributes
</span>
</div>
</div>
</div>
<form class="md-header__option" data-md-component="palette">
<input class="md-option" data-md-color-media="(prefers-color-scheme: light)" data-md-color-scheme="default" data-md-color-primary="indigo" data-md-color-accent="blue" aria-label="Dark Mode" type="radio" name="__palette" id="__palette_0">
<label class="md-header__button md-icon" title="Dark Mode" for="__palette_1" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="m17.75 4.09-2.53 1.94.91 3.06-2.63-1.81-2.63 1.81.91-3.06-2.53-1.94L12.44 4l1.06-3 1.06 3 3.19.09m3.5 6.91-1.64 1.25.59 1.98-1.7-1.17-1.7 1.17.59-1.98L15.75 11l2.06-.05L18.5 9l.69 1.95 2.06.05m-2.28 4.95c.83-.08 1.72 1.1 1.19 1.85-.32.45-.66.87-1.08 1.27C15.17 23 8.84 23 4.94 19.07c-3.91-3.9-3.91-10.24 0-14.14.4-.4.82-.76 1.27-1.08.75-.53 1.93.36 1.85 1.19-.27 2.86.69 5.83 2.89 8.02a9.96 9.96 0 0 0 8.02 2.89m-1.64 2.02a12.08 12.08 0 0 1-7.8-3.47c-2.17-2.19-3.33-5-3.49-7.82-2.81 3.14-2.7 7.96.31 10.98 3.02 3.01 7.84 3.12 10.98.31Z"/></svg>
</label>
<input class="md-option" data-md-color-media="(prefers-color-scheme: dark)" data-md-color-scheme="slate" data-md-color-primary="indigo" data-md-color-accent="blue" aria-label="Light Mode" type="radio" name="__palette" id="__palette_1">
<label class="md-header__button md-icon" title="Light Mode" for="__palette_0" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 7a5 5 0 0 1 5 5 5 5 0 0 1-5 5 5 5 0 0 1-5-5 5 5 0 0 1 5-5m0 2a3 3 0 0 0-3 3 3 3 0 0 0 3 3 3 3 0 0 0 3-3 3 3 0 0 0-3-3m0-7 2.39 3.42C13.65 5.15 12.84 5 12 5c-.84 0-1.65.15-2.39.42L12 2M3.34 7l4.16-.35A7.2 7.2 0 0 0 5.94 8.5c-.44.74-.69 1.5-.83 2.29L3.34 7m.02 10 1.76-3.77a7.131 7.131 0 0 0 2.38 4.14L3.36 17M20.65 7l-1.77 3.79a7.023 7.023 0 0 0-2.38-4.15l4.15.36m-.01 10-4.14.36c.59-.51 1.12-1.14 1.54-1.86.42-.73.69-1.5.83-2.29L20.64 17M12 22l-2.41-3.44c.74.27 1.55.44 2.41.44.82 0 1.63-.17 2.37-.44L12 22Z"/></svg>
</label>
</form>
<script>var media,input,key,value,palette=__md_get("__palette");if(palette&&palette.color){"(prefers-color-scheme)"===palette.color.media&&(media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']"),palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent"));for([key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}</script>
<label class="md-header__button md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
</label>
<div class="md-search" data-md-component="search" role="dialog">
<label class="md-search__overlay" for="__search"></label>
<div class="md-search__inner" role="search">
<form class="md-search__form" name="search">
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
<label class="md-search__icon md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
</label>
<nav class="md-search__options" aria-label="Search">
<button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z"/></svg>
</button>
</nav>
</form>
<div class="md-search__output">
<div class="md-search__scrollwrap" tabindex="0" data-md-scrollfix>
<div class="md-search-result" data-md-component="search-result">
<div class="md-search-result__meta">
Initializing search
</div>
<ol class="md-search-result__list" role="presentation"></ol>
</div>
</div>
</div>
</div>
</div>
<div class="md-header__source">
<a href="https://git.auxolotl.org/auxolotl/docs" title="Go to repository" class="md-source" data-md-component="source">
<div class="md-source__icon md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M16.777 0a2.9 2.9 0 1 1-2.529 4.322H12.91a4.266 4.266 0 0 0-4.265 4.195v2.118a7.076 7.076 0 0 1 4.147-1.42l.118-.002h1.338a2.9 2.9 0 0 1 5.43 1.422 2.9 2.9 0 0 1-5.43 1.422H12.91a4.266 4.266 0 0 0-4.265 4.195v2.319A2.9 2.9 0 0 1 7.222 24 2.9 2.9 0 0 1 5.8 18.57V8.589a7.109 7.109 0 0 1 6.991-7.108l.118-.001h1.338A2.9 2.9 0 0 1 16.778 0ZM7.223 19.905a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Zm9.554-10.464a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.39Zm0-7.735a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Z"/></svg>
</div>
<div class="md-source__repository">
auxolotl/docs
</div>
</a>
</div>
</nav>
</header>
<div class="md-container" data-md-component="container">
<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
<div class="md-grid">
<ul class="md-tabs__list">
<li class="md-tabs__item">
<a href="../../.." class="md-tabs__link">
Aux Documentation Hub
</a>
</li>
<li class="md-tabs__item">
<a href="../../../TODO/" class="md-tabs__link">
TODO
</a>
</li>
<li class="md-tabs__item">
<a href="../../../Aux/" class="md-tabs__link">
Aux
</a>
</li>
<li class="md-tabs__item md-tabs__item--active">
<a href="../../" class="md-tabs__link">
Lix
</a>
</li>
<li class="md-tabs__item">
<a href="../../../NixOS/appstream/" class="md-tabs__link">
NixOS
</a>
</li>
<li class="md-tabs__item">
<a href="../../../Nixpkgs/" class="md-tabs__link">
Nixpkgs
</a>
</li>
</ul>
</div>
</nav>
<main class="md-main" data-md-component="main">
<div class="md-main__inner md-grid">
<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
<label class="md-nav__title" for="__drawer">
<a href="../../.." title="Aux Docs" class="md-nav__button md-logo" aria-label="Aux Docs" data-md-component="logo">
<img src="../../../assets/aux-logo.svg" alt="logo">
</a>
Aux Docs
</label>
<div class="md-nav__source">
<a href="https://git.auxolotl.org/auxolotl/docs" title="Go to repository" class="md-source" data-md-component="source">
<div class="md-source__icon md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M16.777 0a2.9 2.9 0 1 1-2.529 4.322H12.91a4.266 4.266 0 0 0-4.265 4.195v2.118a7.076 7.076 0 0 1 4.147-1.42l.118-.002h1.338a2.9 2.9 0 0 1 5.43 1.422 2.9 2.9 0 0 1-5.43 1.422H12.91a4.266 4.266 0 0 0-4.265 4.195v2.319A2.9 2.9 0 0 1 7.222 24 2.9 2.9 0 0 1 5.8 18.57V8.589a7.109 7.109 0 0 1 6.991-7.108l.118-.001h1.338A2.9 2.9 0 0 1 16.778 0ZM7.223 19.905a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Zm9.554-10.464a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.39Zm0-7.735a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Z"/></svg>
</div>
<div class="md-source__repository">
auxolotl/docs
</div>
</a>
</div>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../.." class="md-nav__link">
<span class="md-ellipsis">
Aux Documentation Hub
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../../../TODO/" class="md-nav__link">
<span class="md-ellipsis">
TODO
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../../Aux/" class="md-nav__link">
<span class="md-ellipsis">
Aux
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" checked>
<div class="md-nav__link md-nav__container">
<a href="../../" class="md-nav__link ">
<span class="md-ellipsis">
Lix
</span>
</a>
<label class="md-nav__link " for="__nav_4" id="__nav_4_label" tabindex="">
<span class="md-nav__icon md-icon"></span>
</label>
</div>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="true">
<label class="md-nav__title" for="__nav_4">
<span class="md-nav__icon md-icon"></span>
Lix
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../glossary/" class="md-nav__link">
<span class="md-ellipsis">
Glossary
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../../quick-start/" class="md-nav__link">
<span class="md-ellipsis">
Quick Start
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../Advanced-Topics/" class="md-nav__link">
<span class="md-ellipsis">
Advanced Topics
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../Command-Reference/" class="md-nav__link">
<span class="md-ellipsis">
Command Reference
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../Package-Management/" class="md-nav__link">
<span class="md-ellipsis">
Package Management
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../architecture/" class="md-nav__link">
<span class="md-ellipsis">
Architecture
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../contributing/" class="md-nav__link">
<span class="md-ellipsis">
Contributing
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../installation/" class="md-nav__link">
<span class="md-ellipsis">
Installation
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_10" checked>
<div class="md-nav__link md-nav__container">
<a href="../" class="md-nav__link ">
<span class="md-ellipsis">
Language
</span>
</a>
<label class="md-nav__link " for="__nav_4_10" id="__nav_4_10_label" tabindex="0">
<span class="md-nav__icon md-icon"></span>
</label>
</div>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_10_label" aria-expanded="true">
<label class="md-nav__title" for="__nav_4_10">
<span class="md-nav__icon md-icon"></span>
Language
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--active">
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
<a href="./" class="md-nav__link md-nav__link--active">
<span class="md-ellipsis">
Advanced Attributes
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../builtin-constants/" class="md-nav__link">
<span class="md-ellipsis">
Built-in Constants
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../builtins/" class="md-nav__link">
<span class="md-ellipsis">
Built-in Functions
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../constructs/" class="md-nav__link">
<span class="md-ellipsis">
Language Constructs
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../derivations/" class="md-nav__link">
<span class="md-ellipsis">
Derivations
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../operators/" class="md-nav__link">
<span class="md-ellipsis">
Operators
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../string-interpolation/" class="md-nav__link">
<span class="md-ellipsis">
String interpolation
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../values/" class="md-nav__link">
<span class="md-ellipsis">
Data Types
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../protocols/" class="md-nav__link">
<span class="md-ellipsis">
Protocols
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../release-notes/" class="md-nav__link">
<span class="md-ellipsis">
Release notes
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../../NixOS/appstream/" class="md-nav__link">
<span class="md-ellipsis">
NixOS
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
<a href="../../../Nixpkgs/" class="md-nav__link">
<span class="md-ellipsis">
Nixpkgs
</span>
<span class="md-nav__icon md-icon"></span>
</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
</nav>
</div>
</div>
</div>
<div class="md-content" data-md-component="content">
<article class="md-content__inner md-typeset">
<h1 id="advanced-attributes">Advanced Attributes</h1>
<p>Derivations can declare some infrequently used optional attributes.</p>
<ul>
<li>
<p>[<code>allowedReferences</code>]{#adv-attr-allowedReferences}
The optional attribute <code>allowedReferences</code> specifies a list of legal
references (dependencies) of the output of the builder. For example,</p>
<div class="highlight"><pre><span></span><code><span class="ss">allowedReferences</span> <span class="o">=</span> <span class="p">[];</span>
</code></pre></div>
<p>enforces that the output of a derivation cannot have any runtime
dependencies on its inputs. To allow an output to have a runtime
dependency on itself, use <code>"out"</code> as a list item. This is used in
NixOS to check that generated files such as initial ramdisks for
booting Linux don’t have accidental dependencies on other paths in
the Nix store.</p>
</li>
<li>
<p>[<code>allowedRequisites</code>]{#adv-attr-allowedRequisites}
This attribute is similar to <code>allowedReferences</code>, but it specifies
the legal requisites of the whole closure, so all the dependencies
recursively. For example,</p>
<div class="highlight"><pre><span></span><code><span class="ss">allowedRequisites</span> <span class="o">=</span> <span class="p">[</span> foobar <span class="p">];</span>
</code></pre></div>
<p>enforces that the output of a derivation cannot have any other
runtime dependency than <code>foobar</code>, and in addition it enforces that
<code>foobar</code> itself doesn't introduce any other dependency itself.</p>
</li>
<li>
<p>[<code>disallowedReferences</code>]{#adv-attr-disallowedReferences}
The optional attribute <code>disallowedReferences</code> specifies a list of
illegal references (dependencies) of the output of the builder. For
example,</p>
<div class="highlight"><pre><span></span><code><span class="ss">disallowedReferences</span> <span class="o">=</span> <span class="p">[</span> foo <span class="p">];</span>
</code></pre></div>
<p>enforces that the output of a derivation cannot have a direct
runtime dependencies on the derivation <code>foo</code>.</p>
</li>
<li>
<p>[<code>disallowedRequisites</code>]{#adv-attr-disallowedRequisites}
This attribute is similar to <code>disallowedReferences</code>, but it
specifies illegal requisites for the whole closure, so all the
dependencies recursively. For example,</p>
<div class="highlight"><pre><span></span><code><span class="ss">disallowedRequisites</span> <span class="o">=</span> <span class="p">[</span> foobar <span class="p">];</span>
</code></pre></div>
<p>enforces that the output of a derivation cannot have any runtime
dependency on <code>foobar</code> or any other derivation depending recursively
on <code>foobar</code>.</p>
</li>
<li>
<p>[<code>exportReferencesGraph</code>]{#adv-attr-exportReferencesGraph}
This attribute allows builders access to the references graph of
their inputs. The attribute is a list of inputs in the Nix store
whose references graph the builder needs to know. The value of
this attribute should be a list of pairs <code>[ name1 path1 name2
path2 ... ]</code>. The references graph of each <em>pathN</em> will be stored
in a text file <em>nameN</em> in the temporary build directory. The text
files have the format used by <code>nix-store --register-validity</code>
(with the deriver fields left empty). For example, when the
following derivation is built:</p>
<div class="highlight"><pre><span></span><code><span class="nb">derivation</span> <span class="p">{</span>
<span class="o">...</span>
<span class="ss">exportReferencesGraph</span> <span class="o">=</span> <span class="p">[</span> <span class="s2">&quot;libfoo-graph&quot;</span> libfoo <span class="p">];</span>
<span class="p">};</span>
</code></pre></div>
<p>the references graph of <code>libfoo</code> is placed in the file
<code>libfoo-graph</code> in the temporary build directory.</p>
<p><code>exportReferencesGraph</code> is useful for builders that want to do
something with the closure of a store path. Examples include the
builders in NixOS that generate the initial ramdisk for booting
Linux (a <code>cpio</code> archive containing the closure of the boot script)
and the ISO-9660 image for the installation CD (which is populated
with a Nix store containing the closure of a bootable NixOS
configuration).</p>
</li>
<li>
<p>[<code>impureEnvVars</code>]{#adv-attr-impureEnvVars}
This attribute allows you to specify a list of environment variables
that should be passed from the environment of the calling user to
the builder. Usually, the environment is cleared completely when the
builder is executed, but with this attribute you can allow specific
environment variables to be passed unmodified. For example,
<code>fetchurl</code> in Nixpkgs has the line</p>
<div class="highlight"><pre><span></span><code><span class="ss">impureEnvVars</span> <span class="o">=</span> <span class="p">[</span> <span class="s2">&quot;http_proxy&quot;</span> <span class="s2">&quot;https_proxy&quot;</span> <span class="o">...</span> <span class="p">];</span>
</code></pre></div>
<p>to make it use the proxy server configuration specified by the user
in the environment variables <code>http_proxy</code> and friends.</p>
<p>This attribute is only allowed in <em>fixed-output derivations</em> (see
below), where impurities such as these are okay since (the hash
of) the output is known in advance. It is ignored for all other
derivations.</p>
</li>
</ul>
<div class="admonition warning">
<p class="admonition-title">Warning</p>
<p><code>impureEnvVars</code> implementation takes environment variables from
the current builder process. When a daemon is building its
environmental variables are used. Without the daemon, the
environmental variables come from the environment of the
<code>nix-build</code>.</p>
</div>
<ul>
<li>
<p>[<code>outputHash</code>]{#adv-attr-outputHash}; [<code>outputHashAlgo</code>]{#adv-attr-outputHashAlgo}; [<code>outputHashMode</code>]{#adv-attr-outputHashMode}
These attributes declare that the derivation is a so-called
<em>fixed-output derivation</em>, which means that a cryptographic hash of
the output is already known in advance. When the build of a
fixed-output derivation finishes, Lix computes the cryptographic
hash of the output and compares it to the hash declared with these
attributes. If there is a mismatch, the build fails.</p>
<p>The rationale for fixed-output derivations is derivations such as
those produced by the <code>fetchurl</code> function. This function downloads a
file from a given URL. To ensure that the downloaded file has not
been modified, the caller must also specify a cryptographic hash of
the file. For example,</p>
<div class="highlight"><pre><span></span><code>fetchurl <span class="p">{</span>
<span class="ss">url</span> <span class="o">=</span> <span class="s2">&quot;http://ftp.gnu.org/pub/gnu/hello/hello-2.1.1.tar.gz&quot;</span><span class="p">;</span>
<span class="ss">sha256</span> <span class="o">=</span> <span class="s2">&quot;1md7jsfd8pa45z73bz1kszpp01yw6x5ljkjk2hx7wl800any6465&quot;</span><span class="p">;</span>
<span class="p">}</span>
</code></pre></div>
<p>It sometimes happens that the URL of the file changes, e.g., because
servers are reorganised or no longer available. We then must update
the call to <code>fetchurl</code>, e.g.,</p>
<div class="highlight"><pre><span></span><code>fetchurl <span class="p">{</span>
<span class="ss">url</span> <span class="o">=</span> <span class="s2">&quot;ftp://ftp.nluug.nl/pub/gnu/hello/hello-2.1.1.tar.gz&quot;</span><span class="p">;</span>
<span class="ss">sha256</span> <span class="o">=</span> <span class="s2">&quot;1md7jsfd8pa45z73bz1kszpp01yw6x5ljkjk2hx7wl800any6465&quot;</span><span class="p">;</span>
<span class="p">}</span>
</code></pre></div>
<p>If a <code>fetchurl</code> derivation was treated like a normal derivation, the
output paths of the derivation and <em>all derivations depending on it</em>
would change. For instance, if we were to change the URL of the
Glibc source distribution in Nixpkgs (a package on which almost all
other packages depend) massive rebuilds would be needed. This is
unfortunate for a change which we know cannot have a real effect as
it propagates upwards through the dependency graph.</p>
<p>For fixed-output derivations, on the other hand, the name of the
output path only depends on the <code>outputHash*</code> and <code>name</code> attributes,
while all other attributes are ignored for the purpose of computing
the output path. (The <code>name</code> attribute is included because it is
part of the path.)</p>
<p>As an example, here is the (simplified) Nix expression for
<code>fetchurl</code>:</p>
<div class="highlight"><pre><span></span><code><span class="p">{</span> stdenv<span class="p">,</span> curl <span class="p">}:</span> <span class="c1">## The curl program is used for downloading.</span>
<span class="p">{</span> url<span class="p">,</span> sha256 <span class="p">}:</span>
stdenv<span class="o">.</span>mkDerivation <span class="p">{</span>
<span class="ss">name</span> <span class="o">=</span> <span class="nb">baseNameOf</span> <span class="p">(</span><span class="nb">toString</span> url<span class="p">);</span>
<span class="ss">builder</span> <span class="o">=</span> <span class="l">./builder.sh</span><span class="p">;</span>
<span class="ss">buildInputs</span> <span class="o">=</span> <span class="p">[</span> curl <span class="p">];</span>
<span class="c1">## This is a fixed-output derivation; the output must be a regular</span>
<span class="c1">## file with SHA256 hash sha256.</span>
<span class="ss">outputHashMode</span> <span class="o">=</span> <span class="s2">&quot;flat&quot;</span><span class="p">;</span>
<span class="ss">outputHashAlgo</span> <span class="o">=</span> <span class="s2">&quot;sha256&quot;</span><span class="p">;</span>
<span class="ss">outputHash</span> <span class="o">=</span> sha256<span class="p">;</span>
<span class="k">inherit</span> url<span class="p">;</span>
<span class="p">}</span>
</code></pre></div>
<p>The <code>outputHashAlgo</code> attribute specifies the hash algorithm used to
compute the hash. It can currently be <code>"sha1"</code>, <code>"sha256"</code> or
<code>"sha512"</code>.</p>
<p>The <code>outputHashMode</code> attribute determines how the hash is computed.
It must be one of the following two values:</p>
<ul>
<li>
<p><code>"flat"</code>
The output must be a non-executable regular file. If it isn’t,
the build fails. The hash is simply computed over the contents
of that file (so it’s equal to what Unix commands like
<code>sha256sum</code> or <code>sha1sum</code> produce).</p>
<p>This is the default.</p>
</li>
<li>
<p><code>"recursive"</code>
The hash is computed over the NAR archive dump of the output
(i.e., the result of <a href="../../Command-Reference/nix-store/dump/"><code>nix-store --dump</code></a>). In
this case, the output can be anything, including a directory
tree.</p>
</li>
</ul>
<p>The <code>outputHash</code> attribute, finally, must be a string containing
the hash in either hexadecimal or base-32 notation. (See the
<a href="../../Command-Reference/nix-hash/"><code>nix-hash</code> command</a> for information
about converting to and from base-32 notation.)</p>
</li>
<li>
<p>[<code>__contentAddressed</code>]{#adv-attr-__contentAddressed}</p>
</li>
</ul>
<div class="admonition warning">
<p class="admonition-title">Warning</p>
<p>This attribute is part of an <a href="../../contributing/experimental-features/">experimental feature</a>.</p>
<p>To use this attribute, you must enable the
<a href="../../contributing/experimental-features/#xp-feature-ca-derivations"><code>ca-derivations</code></a> experimental feature.
For example, in <a href="../../Command-Reference/conf-file/">nix.conf</a> you could add:</p>
<div class="highlight"><pre><span></span><code>extra-experimental-features = ca-derivations
</code></pre></div>
<p>If this attribute is set to <code>true</code>, then the derivation
outputs will be stored in a content-addressed location rather than the
traditional input-addressed one.</p>
<p>Setting this attribute also requires setting
<a href="#adv-attr-outputHashMode"><code>outputHashMode</code></a>
and
<a href="#adv-attr-outputHashAlgo"><code>outputHashAlgo</code></a>
like for <em>fixed-output derivations</em> (see above).</p>
</div>
<ul>
<li>
<p>[<code>passAsFile</code>]{#adv-attr-passAsFile}
A list of names of attributes that should be passed via files rather
than environment variables. For example, if you have</p>
<div class="highlight"><pre><span></span><code><span class="ss">passAsFile</span> <span class="o">=</span> <span class="p">[</span><span class="s2">&quot;big&quot;</span><span class="p">];</span>
<span class="ss">big</span> <span class="o">=</span> <span class="s2">&quot;a very long string&quot;</span><span class="p">;</span>
</code></pre></div>
<p>then when the builder runs, the environment variable <code>bigPath</code>
will contain the absolute path to a temporary file containing <code>a
very long string</code>. That is, for any attribute <em>x</em> listed in
<code>passAsFile</code>, Lix will pass an environment variable <code>xPath</code>
holding the path of the file containing the value of attribute
<em>x</em>. This is useful when you need to pass large strings to a
builder, since most operating systems impose a limit on the size
of the environment (typically, a few hundred kilobyte).</p>
</li>
<li>
<p>[<code>preferLocalBuild</code>]{#adv-attr-preferLocalBuild}
If this attribute is set to <code>true</code> and <a href="../../Advanced-Topics/distributed-builds/">distributed building is
enabled</a>, then, if
possible, the derivation will be built locally instead of forwarded
to a remote machine. This is appropriate for trivial builders
where the cost of doing a download or remote build would exceed
the cost of building locally.</p>
</li>
<li>
<p>[<code>allowSubstitutes</code>]{#adv-attr-allowSubstitutes}
If this attribute is set to <code>false</code>, then Lix will always build this
derivation; it will not try to substitute its outputs. This is
useful for very trivial derivations (such as <code>writeText</code> in Nixpkgs)
that are cheaper to build than to substitute from a binary cache.</p>
<p>You may disable the effects of this attibute by enabling the
<code>always-allow-substitutes</code> configuration option in Lix.</p>
</li>
</ul>
<div class="admonition note">
<p class="admonition-title">Note</p>
<blockquote>
<p>You need to have a builder configured which satisfies the
derivation’s <code>system</code> attribute, since the derivation cannot be
substituted. Thus it is usually a good idea to align <code>system</code> with
<code>builtins.currentSystem</code> when setting <code>allowSubstitutes</code> to
<code>false</code>. For most trivial derivations this should be the case.</p>
</blockquote>
</div>
<ul>
<li>
<p>[<code>__structuredAttrs</code>]{#adv-attr-structuredAttrs}
If the special attribute <code>__structuredAttrs</code> is set to <code>true</code>, the other derivation
attributes are serialised into a file in JSON format. The environment variable
<code>NIX_ATTRS_JSON_FILE</code> points to the exact location of that file both in a build
and a <a href="../../Command-Reference/nix-shell/"><code>nix-shell</code></a>. This obviates the need for
<a href="#adv-attr-passAsFile"><code>passAsFile</code></a> since JSON files have no size restrictions,
unlike process environments.</p>
<p>It also makes it possible to tweak derivation settings in a structured way; see
<a href="#adv-attr-outputChecks"><code>outputChecks</code></a> for example.</p>
<p>As a convenience to Bash builders,
Lix writes a script that initialises shell variables
corresponding to all attributes that are representable in Bash. The
environment variable <code>NIX_ATTRS_SH_FILE</code> points to the exact
location of the script, both in a build and a
<a href="../../Command-Reference/nix-shell/"><code>nix-shell</code></a>. This includes non-nested
(associative) arrays. For example, the attribute <code>hardening.format = true</code>
ends up as the Bash associative array element <code>${hardening[format]}</code>.</p>
</li>
<li>
<p>[<code>outputChecks</code>]{#adv-attr-outputChecks}
When using <a href="#adv-attr-structuredAttrs">structured attributes</a>, the <code>outputChecks</code>
attribute allows defining checks per-output.</p>
<p>In addition to
<a href="#adv-attr-allowedReferences"><code>allowedReferences</code></a>, <a href="#adv-attr-allowedRequisites"><code>allowedRequisites</code></a>,
<a href="#adv-attr-disallowedReferences"><code>disallowedReferences</code></a> and <a href="#adv-attr-disallowedRequisites"><code>disallowedRequisites</code></a>,
the following attributes are available:</p>
<ul>
<li><code>maxSize</code> defines the maximum size of the resulting <a href="../../glossary/#gloss-store-object">store object</a>.</li>
<li><code>maxClosureSize</code> defines the maximum size of the output's closure.</li>
<li><code>ignoreSelfRefs</code> controls whether self-references should be considered when
checking for allowed references/requisites.</li>
</ul>
<p>Example:</p>
<div class="highlight"><pre><span></span><code><span class="ss">__structuredAttrs</span> <span class="o">=</span> <span class="no">true</span><span class="p">;</span>
outputChecks<span class="o">.</span><span class="ss">out</span> <span class="o">=</span> <span class="p">{</span>
<span class="c1">## The closure of &#39;out&#39; must not be larger than 256 MiB.</span>
<span class="ss">maxClosureSize</span> <span class="o">=</span> <span class="mi">256</span> <span class="o">*</span> <span class="mi">1024</span> <span class="o">*</span> <span class="mi">1024</span><span class="p">;</span>
<span class="c1">## It must not refer to the C compiler or to the &#39;dev&#39; output.</span>
<span class="ss">disallowedRequisites</span> <span class="o">=</span> <span class="p">[</span> stdenv<span class="o">.</span>cc <span class="s2">&quot;dev&quot;</span> <span class="p">];</span>
<span class="p">};</span>
outputChecks<span class="o">.</span><span class="ss">dev</span> <span class="o">=</span> <span class="p">{</span>
<span class="c1">## The &#39;dev&#39; output must not be larger than 128 KiB.</span>
<span class="ss">maxSize</span> <span class="o">=</span> <span class="mi">128</span> <span class="o">*</span> <span class="mi">1024</span><span class="p">;</span>
<span class="p">};</span>
</code></pre></div>
</li>
<li>
<p>[<code>unsafeDiscardReferences</code>]{#adv-attr-unsafeDiscardReferences}</p>
<p>When using <a href="#adv-attr-structuredAttrs">structured attributes</a>, the
attribute <code>unsafeDiscardReferences</code> is an attribute set with a boolean value for each output name.
If set to <code>true</code>, it disables scanning the output for runtime dependencies.</p>
<p>Example:</p>
<div class="highlight"><pre><span></span><code><span class="ss">__structuredAttrs</span> <span class="o">=</span> <span class="no">true</span><span class="p">;</span>
unsafeDiscardReferences<span class="o">.</span><span class="ss">out</span> <span class="o">=</span> <span class="no">true</span><span class="p">;</span>
</code></pre></div>
<p>This is useful, for example, when generating self-contained filesystem images with
their own embedded Nix store: hashes found inside such an image refer
to the embedded store and not to the host's Nix store.</p>
</li>
</ul>
</article>
</div>
<script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script>
</div>
</main>
<footer class="md-footer">
<div class="md-footer-meta md-typeset">
<div class="md-footer-meta__inner md-grid">
<div class="md-copyright">
<div class="md-copyright__highlight">
Licenced MIT
</div>
Made with
<a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
Material for MkDocs
</a>
</div>
<div class="md-social">
<a href="https://git.auxolotl.org/auxolotl/docs" target="_blank" rel="noopener" title="Aux Docs Repo" class="md-social__link">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M16.777 0a2.9 2.9 0 1 1-2.529 4.322H12.91a4.266 4.266 0 0 0-4.265 4.195v2.118a7.076 7.076 0 0 1 4.147-1.42l.118-.002h1.338a2.9 2.9 0 0 1 5.43 1.422 2.9 2.9 0 0 1-5.43 1.422H12.91a4.266 4.266 0 0 0-4.265 4.195v2.319A2.9 2.9 0 0 1 7.222 24 2.9 2.9 0 0 1 5.8 18.57V8.589a7.109 7.109 0 0 1 6.991-7.108l.118-.001h1.338A2.9 2.9 0 0 1 16.778 0ZM7.223 19.905a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Zm9.554-10.464a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.39Zm0-7.735a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Z"/></svg>
</a>
<a href="https://forum.aux.computer/" target="_blank" rel="noopener" title="Aux Forum" class="md-social__link">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12.103 0C18.666 0 24 5.485 24 11.997c0 6.51-5.33 11.99-11.9 11.99L0 24V11.79C0 5.28 5.532 0 12.103 0zm.116 4.563a7.395 7.395 0 0 0-6.337 3.57 7.247 7.247 0 0 0-.148 7.22L4.4 19.61l4.794-1.074a7.424 7.424 0 0 0 8.136-1.39 7.256 7.256 0 0 0 1.737-7.997 7.375 7.375 0 0 0-6.84-4.585h-.008z"/></svg>
</a>
<a href="https://wiki.auxolotl.org/" target="_blank" rel="noopener" title="Aux Wiki" class="md-social__link">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17.801 13.557c.148.098.288.202.417.313 1.854 1.6 3.127 4.656 2.582 7.311-1.091-.255-5.747-1.055-7.638-3.383-.91-1.12-1.366-2.081-1.569-2.885a5.65 5.65 0 0 0 .034-.219c.089.198.197.35.313.466.24.24.521.335.766.372.304.046.594-.006.806-.068l.001.001c.05-.015.433-.116.86-.342.325-.173 2.008-.931 3.428-1.566Zm-7.384 1.435C9.156 16.597 6.6 18.939.614 18.417c.219-1.492 1.31-3.019 2.51-4.11.379-.345.906-.692 1.506-1.009.286.168.598.332.939.486 2.689 1.221 3.903 1.001 4.89.573a1.3 1.3 0 0 0 .054-.025 6.156 6.156 0 0 0-.096.66Zm4.152-.462c.38-.341.877-.916 1.383-1.559-.389-.15-.866-.371-1.319-.591-.598-.29-1.305-.283-2.073-.315a4.685 4.685 0 0 1-.804-.103c.014-.123.027-.246.038-.369.062.104.673.057.871.057.354 0 1.621.034 3.074-.574 1.452-.608 2.55-1.706 3.022-3.225.474-1.52.22-3.091-.168-3.952-.169.709-1.453 2.381-1.926 2.871-.473.489-2.381 2.296-2.972 2.921-.7.74-.688.793-1.332 1.302-.202.19-.499.402-.563.53.027-.338.039-.675.027-.997a7.653 7.653 0 0 0-.032-.523c.322-.059.567-.522.567-.861 0-.224-.106-.247-.271-.229.075-.894.382-3.923 1.254-4.281.218.109.831.068.649-.295-.182-.364-.825-.074-1.081.266-.28.374-.956 2.046-.92 4.324-.113.014-.174.033-.322.033-.171 0-.321-.04-.433-.05.034-2.275-.714-3.772-.84-4.169-.12-.375-.491-.596-.781-.596-.146 0-.272.056-.333.179-.182.363.459.417.677.308.706.321 1.156 3.519 1.254 4.277-.125-.006-.199.035-.199.233 0 .311.17.756.452.843a.442.442 0 0 0-.007.03s-.287.99-.413 2.189a4.665 4.665 0 0 1-.718-.225c-.714-.286-1.355-.583-2.019-.566-.664.018-1.366.023-1.804-.036-.438-.058-.649-.15-.649-.15s-.234.365.257 1.075c.42.607 1.055 1.047 1.644 1.18.589.134 1.972.18 2.785-.377.16-.109.317-.228.459-.34a8.717 8.717 0 0 0-.013.626c-.289.753-.571 1.993-.268 3.338 0-.001.701-.842.787-2.958.006-.144.009-.271.01-.383.052-.248.103-.518.148-.799.072.135.151.277.234.413.511.842 1.791 1.37 2.383 1.49.091.019.187.032.285.038Zm-1.12.745c-.188.055-.445.1-.713.059-.21-.031-.45-.11-.655-.316-.169-.168-.312-.419-.401-.789a9.837 9.837 0 0 0 .039-.82l.049-.243c.563.855 1.865 1.398 2.476 1.522.036.008.072.014.109.02l-.013.009c-.579.415-.76.503-.891.558Zm6.333-2.818c-.257.114-4.111 1.822-5.246 2.363.98-.775 3.017-3.59 3.699-4.774 1.062.661 1.468 1.109 1.623 1.441.101.217.09.38.096.515a.57.57 0 0 1-.172.455Zm-9.213 1.62a1.606 1.606 0 0 1-.19.096c-.954.414-2.126.61-4.728-.571-2.023-.918-3.024-2.157-3.371-2.666.476.161 1.471.473 2.157.524.282.021.703.068 1.167.125.021.209.109.486.345.829l.001.001c.451.651 1.134 1.119 1.765 1.262.622.141 2.083.182 2.942-.407a3.12 3.12 0 0 0 .132-.093l.001.179a6.052 6.052 0 0 0-.221.721Zm5.512-1.271a17.49 17.49 0 0 1-1.326-.589c.437.042 1.054.083 1.692.108-.121.162-.244.323-.366.481Zm.932-1.26c-.12.17-.245.343-.373.517-.241.018-.478.03-.709.038a29.05 29.05 0 0 1-.741-.048c.608-.065 1.228-.252 1.823-.507Zm.22-.315c-.809.382-1.679.648-2.507.648-.472 0-.833.018-1.139.039v.001c-.324-.031-.665-.039-1.019-.054a3.555 3.555 0 0 1-.152-.009c.102-.002.192-.006.249-.006.363 0 1.662.034 3.151-.589 1.508-.632 2.645-1.773 3.136-3.351.37-1.186.31-2.402.086-3.312.458-.336.86-.651 1.147-.91.501-.451.743-.733.848-.869.199.206.714.864.685 2.138-.036 1.611-.606 3.187-1.501 4.154a9.099 9.099 0 0 1-1.321 1.132 11.978 11.978 0 0 0-.644-.422l-.089-.055-.051.091c-.184.332-.5.825-.879 1.374ZM4.763 5.817c-.157 1.144.113 2.323.652 3.099.539.776 2.088 2.29 3.614 2.505.991.14 2.055.134 2.055.134s-.593-.576-1.114-1.66c-.521-1.085-.948-2.104-1.734-2.786-.785-.681-1.601-1.416-2.045-1.945-.444-.53-.59-.86-.59-.86s-.656.175-.838 1.513Zm14.301 4.549a9.162 9.162 0 0 0 1.3-1.12c.326-.352.611-.782.845-1.265 1.315.145 2.399.371 2.791.434 0 0-.679 1.971-3.945 3.022l-.016-.035c-.121-.26-.385-.594-.975-1.036Zm-11.634.859a8.537 8.537 0 0 1-.598-.224c-1.657-.693-2.91-1.944-3.449-3.678-.498-1.601-.292-3.251.091-4.269.225.544.758 1.34 1.262 2.01a3.58 3.58 0 0 0-.172.726c-.163 1.197.123 2.428.687 3.24.416.599 1.417 1.62 2.555 2.193-.128.002-.253.003-.376.002Zm-1.758-.077c-.958-.341-1.901-.787-2.697-1.368C-.07 7.559 0 6.827 0 6.827s1.558-.005 3.088.179c.03.126.065.
</a>
</div>
</div>
</div>
</footer>
</div>
<div class="md-dialog" data-md-component="dialog">
<div class="md-dialog__inner md-typeset"></div>
</div>
<script id="__config" type="application/json">{"base": "../../..", "features": ["content.tooltips", "search.highlight", "navigation.tabs", "navigation.indexes", "navigation.prune"], "search": "../../../assets/javascripts/workers/search.b8dbb3d2.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
<script src="../../../assets/javascripts/bundle.fe8b6f2b.min.js"></script>
</body>
</html>
Reference in a new issue Copy permalink