| <!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 `crates/ide/src/view_mir.rs`."><title>view_mir.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-77263533.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="ide" data-themes="" data-resource-suffix="" data-rustdoc-version="1.94.0 (4a4ef493e 2026-03-02)" data-channel="1.94.0" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-b897f86f.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-7bab91a1.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-ffcac47a.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">ide/</div>view_mir.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>hir::{DefWithBody, Semantics}; |
| <a href=#2 id=2 data-nosnippet>2</a><span class="kw">use </span>ide_db::{FilePosition, RootDatabase}; |
| <a href=#3 id=3 data-nosnippet>3</a><span class="kw">use </span>syntax::{AstNode, algo::ancestors_at_offset, ast}; |
| <a href=#4 id=4 data-nosnippet>4</a> |
| <a href=#5 id=5 data-nosnippet>5</a><span class="comment">// Feature: View Mir |
| <a href=#6 id=6 data-nosnippet>6</a>// |
| <a href=#7 id=7 data-nosnippet>7</a>// | Editor | Action Name | |
| <a href=#8 id=8 data-nosnippet>8</a>// |---------|-------------| |
| <a href=#9 id=9 data-nosnippet>9</a>// | VS Code | **rust-analyzer: View Mir** |
| <a href=#10 id=10 data-nosnippet>10</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>view_mir(db: <span class="kw-2">&</span>RootDatabase, position: FilePosition) -> String { |
| <a href=#11 id=11 data-nosnippet>11</a> body_mir(db, position).unwrap_or_else(|| <span class="string">"Not inside a function body"</span>.to_owned()) |
| <a href=#12 id=12 data-nosnippet>12</a>} |
| <a href=#13 id=13 data-nosnippet>13</a> |
| <a href=#14 id=14 data-nosnippet>14</a><span class="kw">fn </span>body_mir(db: <span class="kw-2">&</span>RootDatabase, position: FilePosition) -> <span class="prelude-ty">Option</span><String> { |
| <a href=#15 id=15 data-nosnippet>15</a> <span class="kw">let </span>sema = Semantics::new(db); |
| <a href=#16 id=16 data-nosnippet>16</a> <span class="kw">let </span>source_file = sema.parse_guess_edition(position.file_id); |
| <a href=#17 id=17 data-nosnippet>17</a> |
| <a href=#18 id=18 data-nosnippet>18</a> <span class="kw">let </span>item = ancestors_at_offset(source_file.syntax(), position.offset) |
| <a href=#19 id=19 data-nosnippet>19</a> .filter(|it| !ast::MacroCall::can_cast(it.kind())) |
| <a href=#20 id=20 data-nosnippet>20</a> .find_map(ast::Item::cast)<span class="question-mark">?</span>; |
| <a href=#21 id=21 data-nosnippet>21</a> <span class="kw">let </span>def: DefWithBody = <span class="kw">match </span>item { |
| <a href=#22 id=22 data-nosnippet>22</a> ast::Item::Fn(it) => sema.to_def(<span class="kw-2">&</span>it)<span class="question-mark">?</span>.into(), |
| <a href=#23 id=23 data-nosnippet>23</a> ast::Item::Const(it) => sema.to_def(<span class="kw-2">&</span>it)<span class="question-mark">?</span>.into(), |
| <a href=#24 id=24 data-nosnippet>24</a> ast::Item::Static(it) => sema.to_def(<span class="kw-2">&</span>it)<span class="question-mark">?</span>.into(), |
| <a href=#25 id=25 data-nosnippet>25</a> <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#26 id=26 data-nosnippet>26</a> }; |
| <a href=#27 id=27 data-nosnippet>27</a> <span class="prelude-val">Some</span>(def.debug_mir(db)) |
| <a href=#28 id=28 data-nosnippet>28</a>} |
| </code></pre></div></section></main></body></html> |
