| <!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 `DefDatabase` trait in crate `hir`."><title>DefDatabase in hir::db - Rust</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-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="hir" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.0 (ac68faa20 2026-05-25)" data-channel="1.96.0" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.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 trait"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">DefDatabase</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../hir/index.html">hir</a><span class="version">0.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">DefDatabase</a></h2><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.assoc_visibility" title="assoc_visibility">assoc_visibility</a></li><li><a href="#tymethod.crate_notable_traits" title="crate_notable_traits">crate_notable_traits</a></li><li><a href="#tymethod.crate_supports_no_std" title="crate_supports_no_std">crate_supports_no_std</a></li><li><a href="#tymethod.expand_proc_attr_macros" title="expand_proc_attr_macros">expand_proc_attr_macros</a></li><li><a href="#tymethod.file_item_tree" title="file_item_tree">file_item_tree</a></li><li><a href="#tymethod.include_macro_invoc" title="include_macro_invoc">include_macro_invoc</a></li><li><a href="#tymethod.macro_def" title="macro_def">macro_def</a></li><li><a href="#tymethod.set_expand_proc_attr_macros" title="set_expand_proc_attr_macros">set_expand_proc_attr_macros</a></li><li><a href="#tymethod.set_expand_proc_attr_macros_with_durability" title="set_expand_proc_attr_macros_with_durability">set_expand_proc_attr_macros_with_durability</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In hir::db</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">hir</a>::<wbr><a href="index.html">db</a></div><h1>Trait <span class="trait">DefDatabase</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"></span></div><pre class="rust item-decl"><code>pub trait DefDatabase: <a class="trait" href="trait.ExpandDatabase.html" title="trait hir::db::ExpandDatabase">ExpandDatabase</a> + SourceDatabase { |
| // Required methods |
| fn <a href="#tymethod.expand_proc_attr_macros" class="fn">expand_proc_attr_macros</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.96.0/std/primitive.bool.html">bool</a>; |
| <span class="item-spacer"></span> fn <a href="#tymethod.file_item_tree" class="fn">file_item_tree</a>(&self, file_id: <a class="enum" href="../enum.HirFileId.html" title="enum hir::HirFileId">HirFileId</a>, krate: Crate) -> &ItemTree; |
| <span class="item-spacer"></span> fn <a href="#tymethod.macro_def" class="fn">macro_def</a>(&self, m: MacroId) -> MacroDefId; |
| <span class="item-spacer"></span> fn <a href="#tymethod.assoc_visibility" class="fn">assoc_visibility</a>(&self, def: AssocItemId) -> <a class="enum" href="../enum.Visibility.html" title="enum hir::Visibility">Visibility</a>; |
| <span class="item-spacer"></span> fn <a href="#tymethod.crate_notable_traits" class="fn">crate_notable_traits</a>(&self, krate: Crate) -> <a class="enum" href="https://doc.rust-lang.org/1.96.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&[<a class="struct" href="../struct.TraitId.html" title="struct hir::TraitId">TraitId</a>]>; |
| <span class="item-spacer"></span> fn <a href="#tymethod.crate_supports_no_std" class="fn">crate_supports_no_std</a>(&self, crate_id: Crate) -> <a class="primitive" href="https://doc.rust-lang.org/1.96.0/std/primitive.bool.html">bool</a>; |
| <span class="item-spacer"></span> fn <a href="#tymethod.include_macro_invoc" class="fn">include_macro_invoc</a>( |
| &self, |
| crate_id: Crate, |
| ) -> Arc<[(<a class="struct" href="../struct.MacroCallId.html" title="struct hir::MacroCallId">MacroCallId</a>, <a class="struct" href="../struct.EditionedFileId.html" title="struct hir::EditionedFileId">EditionedFileId</a>)]>; |
| <span class="item-spacer"></span> fn <a href="#tymethod.set_expand_proc_attr_macros" class="fn">set_expand_proc_attr_macros</a>(&mut self, __value: <a class="primitive" href="https://doc.rust-lang.org/1.96.0/std/primitive.bool.html">bool</a>); |
| <span class="item-spacer"></span> fn <a href="#tymethod.set_expand_proc_attr_macros_with_durability" class="fn">set_expand_proc_attr_macros_with_durability</a>( |
| &mut self, |
| __value: <a class="primitive" href="https://doc.rust-lang.org/1.96.0/std/primitive.bool.html">bool</a>, |
| durability: Durability, |
| ); |
| }</code></pre><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><section id="tymethod.expand_proc_attr_macros" class="method"><h4 class="code-header">fn <a href="#tymethod.expand_proc_attr_macros" class="fn">expand_proc_attr_macros</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.96.0/std/primitive.bool.html">bool</a></h4></section><section id="tymethod.file_item_tree" class="method"><h4 class="code-header">fn <a href="#tymethod.file_item_tree" class="fn">file_item_tree</a>(&self, file_id: <a class="enum" href="../enum.HirFileId.html" title="enum hir::HirFileId">HirFileId</a>, krate: Crate) -> &ItemTree</h4></section><section id="tymethod.macro_def" class="method"><h4 class="code-header">fn <a href="#tymethod.macro_def" class="fn">macro_def</a>(&self, m: MacroId) -> MacroDefId</h4></section><section id="tymethod.assoc_visibility" class="method"><h4 class="code-header">fn <a href="#tymethod.assoc_visibility" class="fn">assoc_visibility</a>(&self, def: AssocItemId) -> <a class="enum" href="../enum.Visibility.html" title="enum hir::Visibility">Visibility</a></h4></section><section id="tymethod.crate_notable_traits" class="method"><h4 class="code-header">fn <a href="#tymethod.crate_notable_traits" class="fn">crate_notable_traits</a>(&self, krate: Crate) -> <a class="enum" href="https://doc.rust-lang.org/1.96.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&[<a class="struct" href="../struct.TraitId.html" title="struct hir::TraitId">TraitId</a>]></h4></section><section id="tymethod.crate_supports_no_std" class="method"><h4 class="code-header">fn <a href="#tymethod.crate_supports_no_std" class="fn">crate_supports_no_std</a>(&self, crate_id: Crate) -> <a class="primitive" href="https://doc.rust-lang.org/1.96.0/std/primitive.bool.html">bool</a></h4></section><section id="tymethod.include_macro_invoc" class="method"><h4 class="code-header">fn <a href="#tymethod.include_macro_invoc" class="fn">include_macro_invoc</a>( |
| &self, |
| crate_id: Crate, |
| ) -> Arc<[(<a class="struct" href="../struct.MacroCallId.html" title="struct hir::MacroCallId">MacroCallId</a>, <a class="struct" href="../struct.EditionedFileId.html" title="struct hir::EditionedFileId">EditionedFileId</a>)]></h4></section><section id="tymethod.set_expand_proc_attr_macros" class="method"><h4 class="code-header">fn <a href="#tymethod.set_expand_proc_attr_macros" class="fn">set_expand_proc_attr_macros</a>(&mut self, __value: <a class="primitive" href="https://doc.rust-lang.org/1.96.0/std/primitive.bool.html">bool</a>)</h4></section><section id="tymethod.set_expand_proc_attr_macros_with_durability" class="method"><h4 class="code-header">fn <a href="#tymethod.set_expand_proc_attr_macros_with_durability" class="fn">set_expand_proc_attr_macros_with_durability</a>( |
| &mut self, |
| __value: <a class="primitive" href="https://doc.rust-lang.org/1.96.0/std/primitive.bool.html">bool</a>, |
| durability: Durability, |
| )</h4></section></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><div class="negative-marker"></div><section id="impl-DefDatabase-for-DB" class="impl"><a href="#impl-DefDatabase-for-DB" class="anchor">§</a><h3 class="code-header">impl<DB> <a class="trait" href="trait.DefDatabase.html" title="trait hir::db::DefDatabase">DefDatabase</a> for DB<div class="where">where |
| DB: <a class="trait" href="trait.ExpandDatabase.html" title="trait hir::db::ExpandDatabase">ExpandDatabase</a> + SourceDatabase,</div></h3></section></div><script src="../../trait.impl/hir_def/db/trait.DefDatabase.js" async></script></section></div></main></body></html> |
