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<!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="API documentation for the Rust `llvm_versions` attr in crate `inkwell_internal_macros`."><meta name="keywords" content="rust, rustlang, rust-lang, llvm_versions"><title>inkwell_internal_macros::llvm_versions - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="../favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc attr"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../inkwell_internal_macros/index.html'><div class='logo-container'><img src='../rust-logo.png' alt='logo'></div></a><div class="sidebar-elems"><p class='location'><a href='index.html'>inkwell_internal_macros</a></p><script>window.sidebarCurrent = {name: 'llvm_versions', ty: 'attr', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../src/inkwell_internal_macros/lib.rs.html#306-322' title='goto source code'>[src]</a></span><span class='in-band'>Attribute Macro <a href='index.html'>inkwell_internal_macros</a>::<wbr><a class="attr" href=''>llvm_versions</a></span></h1><pre class='rust attr'>#[llvm_versions]</pre><div class='docblock'><p>This macro can be used to specify version constraints for an enum/struct/union or
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other item which can be decorated with an attribute.</p>
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<p>To use with enum variants or struct fields, you need to decorate the parent item with
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the <code>#[llvm_versioned_item]</code> attribute, as this is the hook we need to modify the AST
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of those items</p>
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<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
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<div class='information'><div class='tooltip ignore'>ⓘ<span class='tooltiptext'>This example is not tested</span></div></div><div class="example-wrap"><pre class="rust rust-example-rendered ignore">
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<span class="comment">// Inclusive range from 3.6 up to and including 3.9</span>
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<span class="attribute">#[<span class="ident">llvm_versions</span>(<span class="number">3.6</span>..<span class="op">=</span><span class="number">3.9</span>)]</span>
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<span class="comment">// Exclusive range from 3.6 up to but not including 4.0</span>
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<span class="attribute">#[<span class="ident">llvm_versions</span>(<span class="number">3.6</span>..<span class="number">4.0</span>)]</span>
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<span class="comment">// Inclusive range from 3.6 up to and including the latest release</span>
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<span class="attribute">#[<span class="ident">llvm_versions</span>(<span class="number">3.6</span>..<span class="op">=</span><span class="ident">latest</span>)]</span></pre></div>
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