| <!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/goto_type_definition.rs`."><title>goto_type_definition.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>goto_type_definition.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>hir::GenericParam; |
| <a href=#2 id=2 data-nosnippet>2</a><span class="kw">use </span>ide_db::{RootDatabase, defs::Definition, helpers::pick_best_token}; |
| <a href=#3 id=3 data-nosnippet>3</a><span class="kw">use </span>syntax::{AstNode, SyntaxKind::<span class="kw-2">*</span>, SyntaxToken, T, ast, match_ast}; |
| <a href=#4 id=4 data-nosnippet>4</a> |
| <a href=#5 id=5 data-nosnippet>5</a><span class="kw">use </span>crate::{FilePosition, NavigationTarget, RangeInfo, TryToNav}; |
| <a href=#6 id=6 data-nosnippet>6</a> |
| <a href=#7 id=7 data-nosnippet>7</a><span class="comment">// Feature: Go to Type Definition |
| <a href=#8 id=8 data-nosnippet>8</a>// |
| <a href=#9 id=9 data-nosnippet>9</a>// Navigates to the type of an identifier. |
| <a href=#10 id=10 data-nosnippet>10</a>// |
| <a href=#11 id=11 data-nosnippet>11</a>// | Editor | Action Name | |
| <a href=#12 id=12 data-nosnippet>12</a>// |---------|-------------| |
| <a href=#13 id=13 data-nosnippet>13</a>// | VS Code | **Go to Type Definition** | |
| <a href=#14 id=14 data-nosnippet>14</a>// |
| <a href=#15 id=15 data-nosnippet>15</a>//  |
| <a href=#16 id=16 data-nosnippet>16</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>goto_type_definition( |
| <a href=#17 id=17 data-nosnippet>17</a> db: <span class="kw-2">&</span>RootDatabase, |
| <a href=#18 id=18 data-nosnippet>18</a> FilePosition { file_id, offset }: FilePosition, |
| <a href=#19 id=19 data-nosnippet>19</a>) -> <span class="prelude-ty">Option</span><RangeInfo<Vec<NavigationTarget>>> { |
| <a href=#20 id=20 data-nosnippet>20</a> <span class="kw">let </span>sema = hir::Semantics::new(db); |
| <a href=#21 id=21 data-nosnippet>21</a> |
| <a href=#22 id=22 data-nosnippet>22</a> <span class="kw">let </span>file: ast::SourceFile = sema.parse_guess_edition(file_id); |
| <a href=#23 id=23 data-nosnippet>23</a> <span class="kw">let </span>token: SyntaxToken = |
| <a href=#24 id=24 data-nosnippet>24</a> pick_best_token(file.syntax().token_at_offset(offset), |kind| <span class="kw">match </span>kind { |
| <a href=#25 id=25 data-nosnippet>25</a> IDENT | INT_NUMBER | <span class="macro">T!</span>[<span class="self">self</span>] => <span class="number">3</span>, |
| <a href=#26 id=26 data-nosnippet>26</a> kind <span class="kw">if </span>kind.is_trivia() => <span class="number">0</span>, |
| <a href=#27 id=27 data-nosnippet>27</a> <span class="macro">T!</span>[;] => <span class="number">1</span>, |
| <a href=#28 id=28 data-nosnippet>28</a> <span class="kw">_ </span>=> <span class="number">2</span>, |
| <a href=#29 id=29 data-nosnippet>29</a> })<span class="question-mark">?</span>; |
| <a href=#30 id=30 data-nosnippet>30</a> |
| <a href=#31 id=31 data-nosnippet>31</a> <span class="kw">let </span><span class="kw-2">mut </span>res = Vec::new(); |
| <a href=#32 id=32 data-nosnippet>32</a> <span class="kw">let </span><span class="kw-2">mut </span>push = |def: Definition| { |
| <a href=#33 id=33 data-nosnippet>33</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(navs) = def.try_to_nav(<span class="kw-2">&</span>sema) { |
| <a href=#34 id=34 data-nosnippet>34</a> <span class="kw">for </span>nav <span class="kw">in </span>navs { |
| <a href=#35 id=35 data-nosnippet>35</a> <span class="kw">if </span>!res.contains(<span class="kw-2">&</span>nav) { |
| <a href=#36 id=36 data-nosnippet>36</a> res.push(nav); |
| <a href=#37 id=37 data-nosnippet>37</a> } |
| <a href=#38 id=38 data-nosnippet>38</a> } |
| <a href=#39 id=39 data-nosnippet>39</a> } |
| <a href=#40 id=40 data-nosnippet>40</a> }; |
| <a href=#41 id=41 data-nosnippet>41</a> <span class="kw">let </span><span class="kw-2">mut </span>process_ty = |ty: hir::Type<<span class="lifetime">'_</span>>| { |
| <a href=#42 id=42 data-nosnippet>42</a> <span class="comment">// collect from each `ty` into the `res` result vec |
| <a href=#43 id=43 data-nosnippet>43</a> </span><span class="kw">let </span>ty = ty.strip_references(); |
| <a href=#44 id=44 data-nosnippet>44</a> ty.walk(db, |t| { |
| <a href=#45 id=45 data-nosnippet>45</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(adt) = t.as_adt() { |
| <a href=#46 id=46 data-nosnippet>46</a> push(adt.into()); |
| <a href=#47 id=47 data-nosnippet>47</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(trait_) = t.as_dyn_trait() { |
| <a href=#48 id=48 data-nosnippet>48</a> push(trait_.into()); |
| <a href=#49 id=49 data-nosnippet>49</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(traits) = t.as_impl_traits(db) { |
| <a href=#50 id=50 data-nosnippet>50</a> traits.for_each(|it| push(it.into())); |
| <a href=#51 id=51 data-nosnippet>51</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(trait_) = t.as_associated_type_parent_trait(db) { |
| <a href=#52 id=52 data-nosnippet>52</a> push(trait_.into()); |
| <a href=#53 id=53 data-nosnippet>53</a> } |
| <a href=#54 id=54 data-nosnippet>54</a> }); |
| <a href=#55 id=55 data-nosnippet>55</a> }; |
| <a href=#56 id=56 data-nosnippet>56</a> <span class="kw">if let </span><span class="prelude-val">Some</span>((range, <span class="kw">_</span>, <span class="kw">_</span>, resolution)) = |
| <a href=#57 id=57 data-nosnippet>57</a> sema.check_for_format_args_template(token.clone(), offset) |
| <a href=#58 id=58 data-nosnippet>58</a> { |
| <a href=#59 id=59 data-nosnippet>59</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(ty) = resolution.and_then(|res| <span class="kw">match </span>Definition::from(res) { |
| <a href=#60 id=60 data-nosnippet>60</a> Definition::Const(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#61 id=61 data-nosnippet>61</a> Definition::Static(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#62 id=62 data-nosnippet>62</a> Definition::GenericParam(GenericParam::ConstParam(it)) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#63 id=63 data-nosnippet>63</a> Definition::Local(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#64 id=64 data-nosnippet>64</a> Definition::Adt(hir::Adt::Struct(it)) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#65 id=65 data-nosnippet>65</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#66 id=66 data-nosnippet>66</a> }) { |
| <a href=#67 id=67 data-nosnippet>67</a> process_ty(ty); |
| <a href=#68 id=68 data-nosnippet>68</a> } |
| <a href=#69 id=69 data-nosnippet>69</a> <span class="kw">return </span><span class="prelude-val">Some</span>(RangeInfo::new(range, res)); |
| <a href=#70 id=70 data-nosnippet>70</a> } |
| <a href=#71 id=71 data-nosnippet>71</a> |
| <a href=#72 id=72 data-nosnippet>72</a> <span class="kw">let </span>range = token.text_range(); |
| <a href=#73 id=73 data-nosnippet>73</a> sema.descend_into_macros_no_opaque(token, <span class="bool-val">false</span>) |
| <a href=#74 id=74 data-nosnippet>74</a> .into_iter() |
| <a href=#75 id=75 data-nosnippet>75</a> .filter_map(|token| { |
| <a href=#76 id=76 data-nosnippet>76</a> sema.token_ancestors_with_macros(token.value) |
| <a href=#77 id=77 data-nosnippet>77</a> <span class="comment">// When `token` is within a macro call, we can't determine its type. Don't continue |
| <a href=#78 id=78 data-nosnippet>78</a> // this traversal because otherwise we'll end up returning the type of *that* macro |
| <a href=#79 id=79 data-nosnippet>79</a> // call, which is not what we want in general. |
| <a href=#80 id=80 data-nosnippet>80</a> // |
| <a href=#81 id=81 data-nosnippet>81</a> // Macro calls always wrap `TokenTree`s, so it's sufficient and efficient to test |
| <a href=#82 id=82 data-nosnippet>82</a> // if the current node is a `TokenTree`. |
| <a href=#83 id=83 data-nosnippet>83</a> </span>.take_while(|node| !ast::TokenTree::can_cast(node.kind())) |
| <a href=#84 id=84 data-nosnippet>84</a> .find_map(|node| { |
| <a href=#85 id=85 data-nosnippet>85</a> <span class="kw">let </span>ty = <span class="macro">match_ast!</span> { |
| <a href=#86 id=86 data-nosnippet>86</a> <span class="kw">match </span>node { |
| <a href=#87 id=87 data-nosnippet>87</a> ast::Expr(it) => sema.type_of_expr(<span class="kw-2">&</span>it)<span class="question-mark">?</span>.original, |
| <a href=#88 id=88 data-nosnippet>88</a> ast::Pat(it) => sema.type_of_pat(<span class="kw-2">&</span>it)<span class="question-mark">?</span>.original, |
| <a href=#89 id=89 data-nosnippet>89</a> ast::SelfParam(it) => sema.type_of_self(<span class="kw-2">&</span>it)<span class="question-mark">?</span>, |
| <a href=#90 id=90 data-nosnippet>90</a> ast::Type(it) => sema.resolve_type(<span class="kw-2">&</span>it)<span class="question-mark">?</span>, |
| <a href=#91 id=91 data-nosnippet>91</a> ast::RecordField(it) => sema.to_def(<span class="kw-2">&</span>it)<span class="question-mark">?</span>.ty(db).to_type(db), |
| <a href=#92 id=92 data-nosnippet>92</a> <span class="comment">// can't match on RecordExprField directly as `ast::Expr` will match an iteration too early otherwise |
| <a href=#93 id=93 data-nosnippet>93</a> </span>ast::NameRef(it) => { |
| <a href=#94 id=94 data-nosnippet>94</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(record_field) = ast::RecordExprField::for_name_ref(<span class="kw-2">&</span>it) { |
| <a href=#95 id=95 data-nosnippet>95</a> <span class="kw">let </span>(<span class="kw">_</span>, <span class="kw">_</span>, ty) = sema.resolve_record_field(<span class="kw-2">&</span>record_field)<span class="question-mark">?</span>; |
| <a href=#96 id=96 data-nosnippet>96</a> ty |
| <a href=#97 id=97 data-nosnippet>97</a> } <span class="kw">else </span>{ |
| <a href=#98 id=98 data-nosnippet>98</a> <span class="kw">let </span>record_field = ast::RecordPatField::for_field_name_ref(<span class="kw-2">&</span>it)<span class="question-mark">?</span>; |
| <a href=#99 id=99 data-nosnippet>99</a> sema.resolve_record_pat_field(<span class="kw-2">&</span>record_field)<span class="question-mark">?</span>.<span class="number">1 |
| <a href=#100 id=100 data-nosnippet>100</a> </span>} |
| <a href=#101 id=101 data-nosnippet>101</a> }, |
| <a href=#102 id=102 data-nosnippet>102</a> <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#103 id=103 data-nosnippet>103</a> } |
| <a href=#104 id=104 data-nosnippet>104</a> }; |
| <a href=#105 id=105 data-nosnippet>105</a> <span class="prelude-val">Some</span>(ty) |
| <a href=#106 id=106 data-nosnippet>106</a> }) |
| <a href=#107 id=107 data-nosnippet>107</a> }) |
| <a href=#108 id=108 data-nosnippet>108</a> .for_each(process_ty); |
| <a href=#109 id=109 data-nosnippet>109</a> <span class="prelude-val">Some</span>(RangeInfo::new(range, res)) |
| <a href=#110 id=110 data-nosnippet>110</a>} |
| <a href=#111 id=111 data-nosnippet>111</a> |
| <a href=#112 id=112 data-nosnippet>112</a><span class="attr">#[cfg(test)] |
| <a href=#113 id=113 data-nosnippet>113</a></span><span class="kw">mod </span>tests { |
| <a href=#114 id=114 data-nosnippet>114</a> <span class="kw">use </span>ide_db::FileRange; |
| <a href=#115 id=115 data-nosnippet>115</a> <span class="kw">use </span>itertools::Itertools; |
| <a href=#116 id=116 data-nosnippet>116</a> |
| <a href=#117 id=117 data-nosnippet>117</a> <span class="kw">use </span><span class="kw">crate</span>::fixture; |
| <a href=#118 id=118 data-nosnippet>118</a> |
| <a href=#119 id=119 data-nosnippet>119</a> <span class="kw">fn </span>check(<span class="attr">#[rust_analyzer::rust_fixture] </span>ra_fixture: <span class="kw-2">&</span>str) { |
| <a href=#120 id=120 data-nosnippet>120</a> <span class="kw">let </span>(analysis, position, expected) = fixture::annotations(ra_fixture); |
| <a href=#121 id=121 data-nosnippet>121</a> <span class="kw">let </span>navs = analysis.goto_type_definition(position).unwrap().unwrap().info; |
| <a href=#122 id=122 data-nosnippet>122</a> <span class="macro">assert!</span>(!navs.is_empty(), <span class="string">"navigation is empty"</span>); |
| <a href=#123 id=123 data-nosnippet>123</a> |
| <a href=#124 id=124 data-nosnippet>124</a> <span class="kw">let </span>cmp = |<span class="kw-2">&</span>FileRange { file_id, range }: <span class="kw-2">&</span><span class="kw">_</span>| (file_id, range.start()); |
| <a href=#125 id=125 data-nosnippet>125</a> <span class="kw">let </span>navs = navs |
| <a href=#126 id=126 data-nosnippet>126</a> .into_iter() |
| <a href=#127 id=127 data-nosnippet>127</a> .map(|nav| FileRange { file_id: nav.file_id, range: nav.focus_or_full_range() }) |
| <a href=#128 id=128 data-nosnippet>128</a> .sorted_by_key(cmp) |
| <a href=#129 id=129 data-nosnippet>129</a> .collect::<Vec<<span class="kw">_</span>>>(); |
| <a href=#130 id=130 data-nosnippet>130</a> <span class="kw">let </span>expected = expected |
| <a href=#131 id=131 data-nosnippet>131</a> .into_iter() |
| <a href=#132 id=132 data-nosnippet>132</a> .map(|(file_range, <span class="kw">_</span>)| file_range) |
| <a href=#133 id=133 data-nosnippet>133</a> .sorted_by_key(cmp) |
| <a href=#134 id=134 data-nosnippet>134</a> .collect::<Vec<<span class="kw">_</span>>>(); |
| <a href=#135 id=135 data-nosnippet>135</a> <span class="macro">assert_eq!</span>(expected, navs); |
| <a href=#136 id=136 data-nosnippet>136</a> } |
| <a href=#137 id=137 data-nosnippet>137</a> |
| <a href=#138 id=138 data-nosnippet>138</a> <span class="attr">#[test] |
| <a href=#139 id=139 data-nosnippet>139</a> </span><span class="kw">fn </span>goto_type_definition_works_simple() { |
| <a href=#140 id=140 data-nosnippet>140</a> check( |
| <a href=#141 id=141 data-nosnippet>141</a> <span class="string">r#" |
| <a href=#142 id=142 data-nosnippet>142</a>struct Foo; |
| <a href=#143 id=143 data-nosnippet>143</a> //^^^ |
| <a href=#144 id=144 data-nosnippet>144</a>fn foo() { |
| <a href=#145 id=145 data-nosnippet>145</a> let f: Foo; f$0 |
| <a href=#146 id=146 data-nosnippet>146</a>} |
| <a href=#147 id=147 data-nosnippet>147</a>"#</span>, |
| <a href=#148 id=148 data-nosnippet>148</a> ); |
| <a href=#149 id=149 data-nosnippet>149</a> } |
| <a href=#150 id=150 data-nosnippet>150</a> |
| <a href=#151 id=151 data-nosnippet>151</a> <span class="attr">#[test] |
| <a href=#152 id=152 data-nosnippet>152</a> </span><span class="kw">fn </span>goto_type_definition_record_expr_field() { |
| <a href=#153 id=153 data-nosnippet>153</a> check( |
| <a href=#154 id=154 data-nosnippet>154</a> <span class="string">r#" |
| <a href=#155 id=155 data-nosnippet>155</a>struct Bar; |
| <a href=#156 id=156 data-nosnippet>156</a> // ^^^ |
| <a href=#157 id=157 data-nosnippet>157</a>struct Foo { foo: Bar } |
| <a href=#158 id=158 data-nosnippet>158</a>fn foo() { |
| <a href=#159 id=159 data-nosnippet>159</a> Foo { foo$0 } |
| <a href=#160 id=160 data-nosnippet>160</a>} |
| <a href=#161 id=161 data-nosnippet>161</a>"#</span>, |
| <a href=#162 id=162 data-nosnippet>162</a> ); |
| <a href=#163 id=163 data-nosnippet>163</a> check( |
| <a href=#164 id=164 data-nosnippet>164</a> <span class="string">r#" |
| <a href=#165 id=165 data-nosnippet>165</a>struct Bar; |
| <a href=#166 id=166 data-nosnippet>166</a> // ^^^ |
| <a href=#167 id=167 data-nosnippet>167</a>struct Foo { foo: Bar } |
| <a href=#168 id=168 data-nosnippet>168</a>fn foo() { |
| <a href=#169 id=169 data-nosnippet>169</a> Foo { foo$0: Bar } |
| <a href=#170 id=170 data-nosnippet>170</a>} |
| <a href=#171 id=171 data-nosnippet>171</a>"#</span>, |
| <a href=#172 id=172 data-nosnippet>172</a> ); |
| <a href=#173 id=173 data-nosnippet>173</a> } |
| <a href=#174 id=174 data-nosnippet>174</a> |
| <a href=#175 id=175 data-nosnippet>175</a> <span class="attr">#[test] |
| <a href=#176 id=176 data-nosnippet>176</a> </span><span class="kw">fn </span>goto_type_definition_record_pat_field() { |
| <a href=#177 id=177 data-nosnippet>177</a> check( |
| <a href=#178 id=178 data-nosnippet>178</a> <span class="string">r#" |
| <a href=#179 id=179 data-nosnippet>179</a>struct Bar; |
| <a href=#180 id=180 data-nosnippet>180</a> // ^^^ |
| <a href=#181 id=181 data-nosnippet>181</a>struct Foo { foo: Bar } |
| <a href=#182 id=182 data-nosnippet>182</a>fn foo() { |
| <a href=#183 id=183 data-nosnippet>183</a> let Foo { foo$0 }; |
| <a href=#184 id=184 data-nosnippet>184</a>} |
| <a href=#185 id=185 data-nosnippet>185</a>"#</span>, |
| <a href=#186 id=186 data-nosnippet>186</a> ); |
| <a href=#187 id=187 data-nosnippet>187</a> check( |
| <a href=#188 id=188 data-nosnippet>188</a> <span class="string">r#" |
| <a href=#189 id=189 data-nosnippet>189</a>struct Bar; |
| <a href=#190 id=190 data-nosnippet>190</a> // ^^^ |
| <a href=#191 id=191 data-nosnippet>191</a>struct Foo { foo: Bar } |
| <a href=#192 id=192 data-nosnippet>192</a>fn foo() { |
| <a href=#193 id=193 data-nosnippet>193</a> let Foo { foo$0: bar }; |
| <a href=#194 id=194 data-nosnippet>194</a>} |
| <a href=#195 id=195 data-nosnippet>195</a>"#</span>, |
| <a href=#196 id=196 data-nosnippet>196</a> ); |
| <a href=#197 id=197 data-nosnippet>197</a> } |
| <a href=#198 id=198 data-nosnippet>198</a> |
| <a href=#199 id=199 data-nosnippet>199</a> <span class="attr">#[test] |
| <a href=#200 id=200 data-nosnippet>200</a> </span><span class="kw">fn </span>goto_type_definition_works_simple_ref() { |
| <a href=#201 id=201 data-nosnippet>201</a> check( |
| <a href=#202 id=202 data-nosnippet>202</a> <span class="string">r#" |
| <a href=#203 id=203 data-nosnippet>203</a>struct Foo; |
| <a href=#204 id=204 data-nosnippet>204</a> //^^^ |
| <a href=#205 id=205 data-nosnippet>205</a>fn foo() { |
| <a href=#206 id=206 data-nosnippet>206</a> let f: &Foo; f$0 |
| <a href=#207 id=207 data-nosnippet>207</a>} |
| <a href=#208 id=208 data-nosnippet>208</a>"#</span>, |
| <a href=#209 id=209 data-nosnippet>209</a> ); |
| <a href=#210 id=210 data-nosnippet>210</a> } |
| <a href=#211 id=211 data-nosnippet>211</a> |
| <a href=#212 id=212 data-nosnippet>212</a> <span class="attr">#[test] |
| <a href=#213 id=213 data-nosnippet>213</a> </span><span class="kw">fn </span>goto_type_definition_works_through_macro() { |
| <a href=#214 id=214 data-nosnippet>214</a> check( |
| <a href=#215 id=215 data-nosnippet>215</a> <span class="string">r#" |
| <a href=#216 id=216 data-nosnippet>216</a>macro_rules! id { ($($tt:tt)*) => { $($tt)* } } |
| <a href=#217 id=217 data-nosnippet>217</a>struct Foo {} |
| <a href=#218 id=218 data-nosnippet>218</a> //^^^ |
| <a href=#219 id=219 data-nosnippet>219</a>id! { |
| <a href=#220 id=220 data-nosnippet>220</a> fn bar() { let f$0 = Foo {}; } |
| <a href=#221 id=221 data-nosnippet>221</a>} |
| <a href=#222 id=222 data-nosnippet>222</a>"#</span>, |
| <a href=#223 id=223 data-nosnippet>223</a> ); |
| <a href=#224 id=224 data-nosnippet>224</a> } |
| <a href=#225 id=225 data-nosnippet>225</a> |
| <a href=#226 id=226 data-nosnippet>226</a> <span class="attr">#[test] |
| <a href=#227 id=227 data-nosnippet>227</a> </span><span class="kw">fn </span>dont_collect_type_from_token_in_macro_call() { |
| <a href=#228 id=228 data-nosnippet>228</a> check( |
| <a href=#229 id=229 data-nosnippet>229</a> <span class="string">r#" |
| <a href=#230 id=230 data-nosnippet>230</a>struct DontCollectMe; |
| <a href=#231 id=231 data-nosnippet>231</a>struct S; |
| <a href=#232 id=232 data-nosnippet>232</a> //^ |
| <a href=#233 id=233 data-nosnippet>233</a> |
| <a href=#234 id=234 data-nosnippet>234</a>macro_rules! inner { |
| <a href=#235 id=235 data-nosnippet>235</a> ($t:tt) => { DontCollectMe } |
| <a href=#236 id=236 data-nosnippet>236</a>} |
| <a href=#237 id=237 data-nosnippet>237</a>macro_rules! m { |
| <a href=#238 id=238 data-nosnippet>238</a> ($t:ident) => { |
| <a href=#239 id=239 data-nosnippet>239</a> match $t { |
| <a href=#240 id=240 data-nosnippet>240</a> _ => inner!($t); |
| <a href=#241 id=241 data-nosnippet>241</a> } |
| <a href=#242 id=242 data-nosnippet>242</a> } |
| <a href=#243 id=243 data-nosnippet>243</a>} |
| <a href=#244 id=244 data-nosnippet>244</a> |
| <a href=#245 id=245 data-nosnippet>245</a>fn test() { |
| <a href=#246 id=246 data-nosnippet>246</a> m!($0S); |
| <a href=#247 id=247 data-nosnippet>247</a>} |
| <a href=#248 id=248 data-nosnippet>248</a>"#</span>, |
| <a href=#249 id=249 data-nosnippet>249</a> ); |
| <a href=#250 id=250 data-nosnippet>250</a> } |
| <a href=#251 id=251 data-nosnippet>251</a> |
| <a href=#252 id=252 data-nosnippet>252</a> <span class="attr">#[test] |
| <a href=#253 id=253 data-nosnippet>253</a> </span><span class="kw">fn </span>goto_type_definition_for_param() { |
| <a href=#254 id=254 data-nosnippet>254</a> check( |
| <a href=#255 id=255 data-nosnippet>255</a> <span class="string">r#" |
| <a href=#256 id=256 data-nosnippet>256</a>struct Foo; |
| <a href=#257 id=257 data-nosnippet>257</a> //^^^ |
| <a href=#258 id=258 data-nosnippet>258</a>fn foo($0f: Foo) {} |
| <a href=#259 id=259 data-nosnippet>259</a>"#</span>, |
| <a href=#260 id=260 data-nosnippet>260</a> ); |
| <a href=#261 id=261 data-nosnippet>261</a> } |
| <a href=#262 id=262 data-nosnippet>262</a> |
| <a href=#263 id=263 data-nosnippet>263</a> <span class="attr">#[test] |
| <a href=#264 id=264 data-nosnippet>264</a> </span><span class="kw">fn </span>goto_type_definition_for_tuple_field() { |
| <a href=#265 id=265 data-nosnippet>265</a> check( |
| <a href=#266 id=266 data-nosnippet>266</a> <span class="string">r#" |
| <a href=#267 id=267 data-nosnippet>267</a>struct Foo; |
| <a href=#268 id=268 data-nosnippet>268</a> //^^^ |
| <a href=#269 id=269 data-nosnippet>269</a>struct Bar(Foo); |
| <a href=#270 id=270 data-nosnippet>270</a>fn foo() { |
| <a href=#271 id=271 data-nosnippet>271</a> let bar = Bar(Foo); |
| <a href=#272 id=272 data-nosnippet>272</a> bar.$00; |
| <a href=#273 id=273 data-nosnippet>273</a>} |
| <a href=#274 id=274 data-nosnippet>274</a>"#</span>, |
| <a href=#275 id=275 data-nosnippet>275</a> ); |
| <a href=#276 id=276 data-nosnippet>276</a> } |
| <a href=#277 id=277 data-nosnippet>277</a> |
| <a href=#278 id=278 data-nosnippet>278</a> <span class="attr">#[test] |
| <a href=#279 id=279 data-nosnippet>279</a> </span><span class="kw">fn </span>goto_def_for_self_param() { |
| <a href=#280 id=280 data-nosnippet>280</a> check( |
| <a href=#281 id=281 data-nosnippet>281</a> <span class="string">r#" |
| <a href=#282 id=282 data-nosnippet>282</a>struct Foo; |
| <a href=#283 id=283 data-nosnippet>283</a> //^^^ |
| <a href=#284 id=284 data-nosnippet>284</a>impl Foo { |
| <a href=#285 id=285 data-nosnippet>285</a> fn f(&self$0) {} |
| <a href=#286 id=286 data-nosnippet>286</a>} |
| <a href=#287 id=287 data-nosnippet>287</a>"#</span>, |
| <a href=#288 id=288 data-nosnippet>288</a> ) |
| <a href=#289 id=289 data-nosnippet>289</a> } |
| <a href=#290 id=290 data-nosnippet>290</a> |
| <a href=#291 id=291 data-nosnippet>291</a> <span class="attr">#[test] |
| <a href=#292 id=292 data-nosnippet>292</a> </span><span class="kw">fn </span>goto_def_for_type_fallback() { |
| <a href=#293 id=293 data-nosnippet>293</a> check( |
| <a href=#294 id=294 data-nosnippet>294</a> <span class="string">r#" |
| <a href=#295 id=295 data-nosnippet>295</a>struct Foo; |
| <a href=#296 id=296 data-nosnippet>296</a> //^^^ |
| <a href=#297 id=297 data-nosnippet>297</a>impl Foo$0 {} |
| <a href=#298 id=298 data-nosnippet>298</a>"#</span>, |
| <a href=#299 id=299 data-nosnippet>299</a> ) |
| <a href=#300 id=300 data-nosnippet>300</a> } |
| <a href=#301 id=301 data-nosnippet>301</a> |
| <a href=#302 id=302 data-nosnippet>302</a> <span class="attr">#[test] |
| <a href=#303 id=303 data-nosnippet>303</a> </span><span class="kw">fn </span>goto_def_for_struct_field() { |
| <a href=#304 id=304 data-nosnippet>304</a> check( |
| <a href=#305 id=305 data-nosnippet>305</a> <span class="string">r#" |
| <a href=#306 id=306 data-nosnippet>306</a>struct Bar; |
| <a href=#307 id=307 data-nosnippet>307</a> //^^^ |
| <a href=#308 id=308 data-nosnippet>308</a> |
| <a href=#309 id=309 data-nosnippet>309</a>struct Foo { |
| <a href=#310 id=310 data-nosnippet>310</a> bar$0: Bar, |
| <a href=#311 id=311 data-nosnippet>311</a>} |
| <a href=#312 id=312 data-nosnippet>312</a>"#</span>, |
| <a href=#313 id=313 data-nosnippet>313</a> ); |
| <a href=#314 id=314 data-nosnippet>314</a> } |
| <a href=#315 id=315 data-nosnippet>315</a> |
| <a href=#316 id=316 data-nosnippet>316</a> <span class="attr">#[test] |
| <a href=#317 id=317 data-nosnippet>317</a> </span><span class="kw">fn </span>goto_def_for_enum_struct_field() { |
| <a href=#318 id=318 data-nosnippet>318</a> check( |
| <a href=#319 id=319 data-nosnippet>319</a> <span class="string">r#" |
| <a href=#320 id=320 data-nosnippet>320</a>struct Bar; |
| <a href=#321 id=321 data-nosnippet>321</a> //^^^ |
| <a href=#322 id=322 data-nosnippet>322</a> |
| <a href=#323 id=323 data-nosnippet>323</a>enum Foo { |
| <a href=#324 id=324 data-nosnippet>324</a> Bar { |
| <a href=#325 id=325 data-nosnippet>325</a> bar$0: Bar |
| <a href=#326 id=326 data-nosnippet>326</a> }, |
| <a href=#327 id=327 data-nosnippet>327</a>} |
| <a href=#328 id=328 data-nosnippet>328</a>"#</span>, |
| <a href=#329 id=329 data-nosnippet>329</a> ); |
| <a href=#330 id=330 data-nosnippet>330</a> } |
| <a href=#331 id=331 data-nosnippet>331</a> |
| <a href=#332 id=332 data-nosnippet>332</a> <span class="attr">#[test] |
| <a href=#333 id=333 data-nosnippet>333</a> </span><span class="kw">fn </span>goto_def_considers_generics() { |
| <a href=#334 id=334 data-nosnippet>334</a> check( |
| <a href=#335 id=335 data-nosnippet>335</a> <span class="string">r#" |
| <a href=#336 id=336 data-nosnippet>336</a>struct Foo; |
| <a href=#337 id=337 data-nosnippet>337</a> //^^^ |
| <a href=#338 id=338 data-nosnippet>338</a>struct Bar<T, U>(T, U); |
| <a href=#339 id=339 data-nosnippet>339</a> //^^^ |
| <a href=#340 id=340 data-nosnippet>340</a>struct Baz<T>(T); |
| <a href=#341 id=341 data-nosnippet>341</a> //^^^ |
| <a href=#342 id=342 data-nosnippet>342</a> |
| <a href=#343 id=343 data-nosnippet>343</a>fn foo(x$0: Bar<Baz<Foo>, Baz<usize>) {} |
| <a href=#344 id=344 data-nosnippet>344</a>"#</span>, |
| <a href=#345 id=345 data-nosnippet>345</a> ); |
| <a href=#346 id=346 data-nosnippet>346</a> } |
| <a href=#347 id=347 data-nosnippet>347</a> |
| <a href=#348 id=348 data-nosnippet>348</a> <span class="attr">#[test] |
| <a href=#349 id=349 data-nosnippet>349</a> </span><span class="kw">fn </span>implicit_format_args() { |
| <a href=#350 id=350 data-nosnippet>350</a> check( |
| <a href=#351 id=351 data-nosnippet>351</a> <span class="string">r#" |
| <a href=#352 id=352 data-nosnippet>352</a>//- minicore: fmt |
| <a href=#353 id=353 data-nosnippet>353</a>struct Bar; |
| <a href=#354 id=354 data-nosnippet>354</a> // ^^^ |
| <a href=#355 id=355 data-nosnippet>355</a> fn test() { |
| <a href=#356 id=356 data-nosnippet>356</a> let a = Bar; |
| <a href=#357 id=357 data-nosnippet>357</a> format_args!("hello {a$0}"); |
| <a href=#358 id=358 data-nosnippet>358</a>} |
| <a href=#359 id=359 data-nosnippet>359</a>"#</span>, |
| <a href=#360 id=360 data-nosnippet>360</a> ); |
| <a href=#361 id=361 data-nosnippet>361</a> check( |
| <a href=#362 id=362 data-nosnippet>362</a> <span class="string">r#" |
| <a href=#363 id=363 data-nosnippet>363</a>//- minicore: fmt |
| <a href=#364 id=364 data-nosnippet>364</a>struct Bar; |
| <a href=#365 id=365 data-nosnippet>365</a> // ^^^ |
| <a href=#366 id=366 data-nosnippet>366</a> fn test() { |
| <a href=#367 id=367 data-nosnippet>367</a> format_args!("hello {Bar$0}"); |
| <a href=#368 id=368 data-nosnippet>368</a>} |
| <a href=#369 id=369 data-nosnippet>369</a>"#</span>, |
| <a href=#370 id=370 data-nosnippet>370</a> ); |
| <a href=#371 id=371 data-nosnippet>371</a> check( |
| <a href=#372 id=372 data-nosnippet>372</a> <span class="string">r#" |
| <a href=#373 id=373 data-nosnippet>373</a>//- minicore: fmt |
| <a href=#374 id=374 data-nosnippet>374</a>struct Bar; |
| <a href=#375 id=375 data-nosnippet>375</a> // ^^^ |
| <a href=#376 id=376 data-nosnippet>376</a>const BAR: Bar = Bar; |
| <a href=#377 id=377 data-nosnippet>377</a>fn test() { |
| <a href=#378 id=378 data-nosnippet>378</a> format_args!("hello {BAR$0}"); |
| <a href=#379 id=379 data-nosnippet>379</a>} |
| <a href=#380 id=380 data-nosnippet>380</a>"#</span>, |
| <a href=#381 id=381 data-nosnippet>381</a> ); |
| <a href=#382 id=382 data-nosnippet>382</a> } |
| <a href=#383 id=383 data-nosnippet>383</a>} |
| </code></pre></div></section></main></body></html> |
