| <!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/hir-ty/src/lang_items.rs`."><title>lang_items.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="hir_ty" 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">hir_ty/</div>lang_items.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="doccomment">//! Functions to detect special lang items |
| <a href=#2 id=2 data-nosnippet>2</a> |
| <a href=#3 id=3 data-nosnippet>3</a></span><span class="kw">use </span>hir_def::{AdtId, TraitId, lang_item::LangItems, signatures::StructFlags}; |
| <a href=#4 id=4 data-nosnippet>4</a><span class="kw">use </span>intern::{Symbol, sym}; |
| <a href=#5 id=5 data-nosnippet>5</a> |
| <a href=#6 id=6 data-nosnippet>6</a><span class="kw">use </span><span class="kw">crate</span>::db::HirDatabase; |
| <a href=#7 id=7 data-nosnippet>7</a> |
| <a href=#8 id=8 data-nosnippet>8</a><span class="kw">pub fn </span>is_box(db: <span class="kw-2">&</span><span class="kw">dyn </span>HirDatabase, adt: AdtId) -> bool { |
| <a href=#9 id=9 data-nosnippet>9</a> <span class="kw">let </span>AdtId::StructId(id) = adt <span class="kw">else </span>{ <span class="kw">return </span><span class="bool-val">false </span>}; |
| <a href=#10 id=10 data-nosnippet>10</a> db.struct_signature(id).flags.contains(StructFlags::IS_BOX) |
| <a href=#11 id=11 data-nosnippet>11</a>} |
| <a href=#12 id=12 data-nosnippet>12</a> |
| <a href=#13 id=13 data-nosnippet>13</a><span class="kw">pub fn </span>lang_items_for_bin_op( |
| <a href=#14 id=14 data-nosnippet>14</a> lang_items: <span class="kw-2">&</span>LangItems, |
| <a href=#15 id=15 data-nosnippet>15</a> op: syntax::ast::BinaryOp, |
| <a href=#16 id=16 data-nosnippet>16</a>) -> <span class="prelude-ty">Option</span><(Symbol, <span class="prelude-ty">Option</span><TraitId>)> { |
| <a href=#17 id=17 data-nosnippet>17</a> <span class="kw">use </span>syntax::ast::{ArithOp, BinaryOp, CmpOp, Ordering}; |
| <a href=#18 id=18 data-nosnippet>18</a> <span class="prelude-val">Some</span>(<span class="kw">match </span>op { |
| <a href=#19 id=19 data-nosnippet>19</a> BinaryOp::LogicOp(<span class="kw">_</span>) => <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#20 id=20 data-nosnippet>20</a> BinaryOp::ArithOp(aop) => <span class="kw">match </span>aop { |
| <a href=#21 id=21 data-nosnippet>21</a> ArithOp::Add => (sym::add, lang_items.Add), |
| <a href=#22 id=22 data-nosnippet>22</a> ArithOp::Mul => (sym::mul, lang_items.Mul), |
| <a href=#23 id=23 data-nosnippet>23</a> ArithOp::Sub => (sym::sub, lang_items.Sub), |
| <a href=#24 id=24 data-nosnippet>24</a> ArithOp::Div => (sym::div, lang_items.Div), |
| <a href=#25 id=25 data-nosnippet>25</a> ArithOp::Rem => (sym::rem, lang_items.Rem), |
| <a href=#26 id=26 data-nosnippet>26</a> ArithOp::Shl => (sym::shl, lang_items.Shl), |
| <a href=#27 id=27 data-nosnippet>27</a> ArithOp::Shr => (sym::shr, lang_items.Shr), |
| <a href=#28 id=28 data-nosnippet>28</a> ArithOp::BitXor => (sym::bitxor, lang_items.BitXor), |
| <a href=#29 id=29 data-nosnippet>29</a> ArithOp::BitOr => (sym::bitor, lang_items.BitOr), |
| <a href=#30 id=30 data-nosnippet>30</a> ArithOp::BitAnd => (sym::bitand, lang_items.BitAnd), |
| <a href=#31 id=31 data-nosnippet>31</a> }, |
| <a href=#32 id=32 data-nosnippet>32</a> BinaryOp::Assignment { op: <span class="prelude-val">Some</span>(aop) } => <span class="kw">match </span>aop { |
| <a href=#33 id=33 data-nosnippet>33</a> ArithOp::Add => (sym::add_assign, lang_items.AddAssign), |
| <a href=#34 id=34 data-nosnippet>34</a> ArithOp::Mul => (sym::mul_assign, lang_items.MulAssign), |
| <a href=#35 id=35 data-nosnippet>35</a> ArithOp::Sub => (sym::sub_assign, lang_items.SubAssign), |
| <a href=#36 id=36 data-nosnippet>36</a> ArithOp::Div => (sym::div_assign, lang_items.DivAssign), |
| <a href=#37 id=37 data-nosnippet>37</a> ArithOp::Rem => (sym::rem_assign, lang_items.RemAssign), |
| <a href=#38 id=38 data-nosnippet>38</a> ArithOp::Shl => (sym::shl_assign, lang_items.ShlAssign), |
| <a href=#39 id=39 data-nosnippet>39</a> ArithOp::Shr => (sym::shr_assign, lang_items.ShrAssign), |
| <a href=#40 id=40 data-nosnippet>40</a> ArithOp::BitXor => (sym::bitxor_assign, lang_items.BitXorAssign), |
| <a href=#41 id=41 data-nosnippet>41</a> ArithOp::BitOr => (sym::bitor_assign, lang_items.BitOrAssign), |
| <a href=#42 id=42 data-nosnippet>42</a> ArithOp::BitAnd => (sym::bitand_assign, lang_items.BitAndAssign), |
| <a href=#43 id=43 data-nosnippet>43</a> }, |
| <a href=#44 id=44 data-nosnippet>44</a> BinaryOp::CmpOp(cop) => <span class="kw">match </span>cop { |
| <a href=#45 id=45 data-nosnippet>45</a> CmpOp::Eq { negated: <span class="bool-val">false </span>} => (sym::eq, lang_items.PartialEq), |
| <a href=#46 id=46 data-nosnippet>46</a> CmpOp::Eq { negated: <span class="bool-val">true </span>} => (sym::ne, lang_items.PartialEq), |
| <a href=#47 id=47 data-nosnippet>47</a> CmpOp::Ord { ordering: Ordering::Less, strict: <span class="bool-val">false </span>} => { |
| <a href=#48 id=48 data-nosnippet>48</a> (sym::le, lang_items.PartialOrd) |
| <a href=#49 id=49 data-nosnippet>49</a> } |
| <a href=#50 id=50 data-nosnippet>50</a> CmpOp::Ord { ordering: Ordering::Less, strict: <span class="bool-val">true </span>} => { |
| <a href=#51 id=51 data-nosnippet>51</a> (sym::lt, lang_items.PartialOrd) |
| <a href=#52 id=52 data-nosnippet>52</a> } |
| <a href=#53 id=53 data-nosnippet>53</a> CmpOp::Ord { ordering: Ordering::Greater, strict: <span class="bool-val">false </span>} => { |
| <a href=#54 id=54 data-nosnippet>54</a> (sym::ge, lang_items.PartialOrd) |
| <a href=#55 id=55 data-nosnippet>55</a> } |
| <a href=#56 id=56 data-nosnippet>56</a> CmpOp::Ord { ordering: Ordering::Greater, strict: <span class="bool-val">true </span>} => { |
| <a href=#57 id=57 data-nosnippet>57</a> (sym::gt, lang_items.PartialOrd) |
| <a href=#58 id=58 data-nosnippet>58</a> } |
| <a href=#59 id=59 data-nosnippet>59</a> }, |
| <a href=#60 id=60 data-nosnippet>60</a> BinaryOp::Assignment { op: <span class="prelude-val">None </span>} => <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#61 id=61 data-nosnippet>61</a> }) |
| <a href=#62 id=62 data-nosnippet>62</a>} |
| </code></pre></div></section></main></body></html> |
