| <!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/hover.rs`."><title>hover.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" crossorigin href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-84e720fa.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="1.89.0 (29483883e 2025-08-04)" data-channel="1.89.0" data-search-js="search-92309212.js" data-settings-js="settings-5514c975.js" ><script src="../../static.files/storage-4e99c027.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-fd3af306.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-32bb7600.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-6580c154.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><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">ide/</div>hover.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">mod </span>render; |
| <a href=#2 id=2 data-nosnippet>2</a> |
| <a href=#3 id=3 data-nosnippet>3</a><span class="attr">#[cfg(test)] |
| <a href=#4 id=4 data-nosnippet>4</a></span><span class="kw">mod </span>tests; |
| <a href=#5 id=5 data-nosnippet>5</a> |
| <a href=#6 id=6 data-nosnippet>6</a><span class="kw">use </span>std::{iter, ops::Not}; |
| <a href=#7 id=7 data-nosnippet>7</a> |
| <a href=#8 id=8 data-nosnippet>8</a><span class="kw">use </span>either::Either; |
| <a href=#9 id=9 data-nosnippet>9</a><span class="kw">use </span>hir::{ |
| <a href=#10 id=10 data-nosnippet>10</a> DisplayTarget, GenericDef, GenericSubstitution, HasCrate, HasSource, LangItem, Semantics, |
| <a href=#11 id=11 data-nosnippet>11</a> db::DefDatabase, |
| <a href=#12 id=12 data-nosnippet>12</a>}; |
| <a href=#13 id=13 data-nosnippet>13</a><span class="kw">use </span>ide_db::{ |
| <a href=#14 id=14 data-nosnippet>14</a> FileRange, FxIndexSet, Ranker, RootDatabase, |
| <a href=#15 id=15 data-nosnippet>15</a> defs::{Definition, IdentClass, NameRefClass, OperatorClass}, |
| <a href=#16 id=16 data-nosnippet>16</a> famous_defs::FamousDefs, |
| <a href=#17 id=17 data-nosnippet>17</a> helpers::pick_best_token, |
| <a href=#18 id=18 data-nosnippet>18</a>}; |
| <a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>itertools::{Itertools, multizip}; |
| <a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>span::Edition; |
| <a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>syntax::{ |
| <a href=#22 id=22 data-nosnippet>22</a> AstNode, |
| <a href=#23 id=23 data-nosnippet>23</a> SyntaxKind::{<span class="self">self</span>, <span class="kw-2">*</span>}, |
| <a href=#24 id=24 data-nosnippet>24</a> SyntaxNode, T, ast, |
| <a href=#25 id=25 data-nosnippet>25</a>}; |
| <a href=#26 id=26 data-nosnippet>26</a> |
| <a href=#27 id=27 data-nosnippet>27</a><span class="kw">use crate</span>::{ |
| <a href=#28 id=28 data-nosnippet>28</a> FileId, FilePosition, NavigationTarget, RangeInfo, Runnable, TryToNav, |
| <a href=#29 id=29 data-nosnippet>29</a> doc_links::token_as_doc_comment, |
| <a href=#30 id=30 data-nosnippet>30</a> markdown_remove::remove_markdown, |
| <a href=#31 id=31 data-nosnippet>31</a> markup::Markup, |
| <a href=#32 id=32 data-nosnippet>32</a> navigation_target::UpmappingResult, |
| <a href=#33 id=33 data-nosnippet>33</a> runnables::{runnable_fn, runnable_mod}, |
| <a href=#34 id=34 data-nosnippet>34</a>}; |
| <a href=#35 id=35 data-nosnippet>35</a><span class="attr">#[derive(Clone, Debug, PartialEq, Eq)] |
| <a href=#36 id=36 data-nosnippet>36</a></span><span class="kw">pub struct </span>HoverConfig { |
| <a href=#37 id=37 data-nosnippet>37</a> <span class="kw">pub </span>links_in_hover: bool, |
| <a href=#38 id=38 data-nosnippet>38</a> <span class="kw">pub </span>memory_layout: <span class="prelude-ty">Option</span><MemoryLayoutHoverConfig>, |
| <a href=#39 id=39 data-nosnippet>39</a> <span class="kw">pub </span>documentation: bool, |
| <a href=#40 id=40 data-nosnippet>40</a> <span class="kw">pub </span>keywords: bool, |
| <a href=#41 id=41 data-nosnippet>41</a> <span class="kw">pub </span>format: HoverDocFormat, |
| <a href=#42 id=42 data-nosnippet>42</a> <span class="kw">pub </span>max_trait_assoc_items_count: <span class="prelude-ty">Option</span><usize>, |
| <a href=#43 id=43 data-nosnippet>43</a> <span class="kw">pub </span>max_fields_count: <span class="prelude-ty">Option</span><usize>, |
| <a href=#44 id=44 data-nosnippet>44</a> <span class="kw">pub </span>max_enum_variants_count: <span class="prelude-ty">Option</span><usize>, |
| <a href=#45 id=45 data-nosnippet>45</a> <span class="kw">pub </span>max_subst_ty_len: SubstTyLen, |
| <a href=#46 id=46 data-nosnippet>46</a> <span class="kw">pub </span>show_drop_glue: bool, |
| <a href=#47 id=47 data-nosnippet>47</a>} |
| <a href=#48 id=48 data-nosnippet>48</a> |
| <a href=#49 id=49 data-nosnippet>49</a><span class="attr">#[derive(Clone, Debug, PartialEq, Eq)] |
| <a href=#50 id=50 data-nosnippet>50</a></span><span class="kw">pub enum </span>SubstTyLen { |
| <a href=#51 id=51 data-nosnippet>51</a> Unlimited, |
| <a href=#52 id=52 data-nosnippet>52</a> LimitTo(usize), |
| <a href=#53 id=53 data-nosnippet>53</a> Hide, |
| <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="attr">#[derive(Copy, Clone, Debug, PartialEq, Eq)] |
| <a href=#57 id=57 data-nosnippet>57</a></span><span class="kw">pub struct </span>MemoryLayoutHoverConfig { |
| <a href=#58 id=58 data-nosnippet>58</a> <span class="kw">pub </span>size: <span class="prelude-ty">Option</span><MemoryLayoutHoverRenderKind>, |
| <a href=#59 id=59 data-nosnippet>59</a> <span class="kw">pub </span>offset: <span class="prelude-ty">Option</span><MemoryLayoutHoverRenderKind>, |
| <a href=#60 id=60 data-nosnippet>60</a> <span class="kw">pub </span>alignment: <span class="prelude-ty">Option</span><MemoryLayoutHoverRenderKind>, |
| <a href=#61 id=61 data-nosnippet>61</a> <span class="kw">pub </span>padding: <span class="prelude-ty">Option</span><MemoryLayoutHoverRenderKind>, |
| <a href=#62 id=62 data-nosnippet>62</a> <span class="kw">pub </span>niches: bool, |
| <a href=#63 id=63 data-nosnippet>63</a>} |
| <a href=#64 id=64 data-nosnippet>64</a> |
| <a href=#65 id=65 data-nosnippet>65</a><span class="attr">#[derive(Copy, Clone, Debug, PartialEq, Eq)] |
| <a href=#66 id=66 data-nosnippet>66</a></span><span class="kw">pub enum </span>MemoryLayoutHoverRenderKind { |
| <a href=#67 id=67 data-nosnippet>67</a> Decimal, |
| <a href=#68 id=68 data-nosnippet>68</a> Hexadecimal, |
| <a href=#69 id=69 data-nosnippet>69</a> Both, |
| <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="attr">#[derive(Clone, Debug, PartialEq, Eq)] |
| <a href=#73 id=73 data-nosnippet>73</a></span><span class="kw">pub enum </span>HoverDocFormat { |
| <a href=#74 id=74 data-nosnippet>74</a> Markdown, |
| <a href=#75 id=75 data-nosnippet>75</a> PlainText, |
| <a href=#76 id=76 data-nosnippet>76</a>} |
| <a href=#77 id=77 data-nosnippet>77</a> |
| <a href=#78 id=78 data-nosnippet>78</a><span class="attr">#[derive(Debug, Clone, Hash, PartialEq, Eq)] |
| <a href=#79 id=79 data-nosnippet>79</a></span><span class="kw">pub enum </span>HoverAction { |
| <a href=#80 id=80 data-nosnippet>80</a> Runnable(Runnable), |
| <a href=#81 id=81 data-nosnippet>81</a> Implementation(FilePosition), |
| <a href=#82 id=82 data-nosnippet>82</a> Reference(FilePosition), |
| <a href=#83 id=83 data-nosnippet>83</a> GoToType(Vec<HoverGotoTypeData>), |
| <a href=#84 id=84 data-nosnippet>84</a>} |
| <a href=#85 id=85 data-nosnippet>85</a> |
| <a href=#86 id=86 data-nosnippet>86</a><span class="kw">impl </span>HoverAction { |
| <a href=#87 id=87 data-nosnippet>87</a> <span class="kw">fn </span>goto_type_from_targets( |
| <a href=#88 id=88 data-nosnippet>88</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#89 id=89 data-nosnippet>89</a> targets: Vec<hir::ModuleDef>, |
| <a href=#90 id=90 data-nosnippet>90</a> edition: Edition, |
| <a href=#91 id=91 data-nosnippet>91</a> ) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <a href=#92 id=92 data-nosnippet>92</a> <span class="kw">let </span>db = sema.db; |
| <a href=#93 id=93 data-nosnippet>93</a> <span class="kw">let </span>targets = targets |
| <a href=#94 id=94 data-nosnippet>94</a> .into_iter() |
| <a href=#95 id=95 data-nosnippet>95</a> .filter_map(|it| { |
| <a href=#96 id=96 data-nosnippet>96</a> <span class="prelude-val">Some</span>(HoverGotoTypeData { |
| <a href=#97 id=97 data-nosnippet>97</a> mod_path: render::path( |
| <a href=#98 id=98 data-nosnippet>98</a> db, |
| <a href=#99 id=99 data-nosnippet>99</a> it.module(db)<span class="question-mark">?</span>, |
| <a href=#100 id=100 data-nosnippet>100</a> it.name(db).map(|name| name.display(db, edition).to_string()), |
| <a href=#101 id=101 data-nosnippet>101</a> edition, |
| <a href=#102 id=102 data-nosnippet>102</a> ), |
| <a href=#103 id=103 data-nosnippet>103</a> nav: it.try_to_nav(sema)<span class="question-mark">?</span>.call_site(), |
| <a href=#104 id=104 data-nosnippet>104</a> }) |
| <a href=#105 id=105 data-nosnippet>105</a> }) |
| <a href=#106 id=106 data-nosnippet>106</a> .collect::<Vec<<span class="kw">_</span>>>(); |
| <a href=#107 id=107 data-nosnippet>107</a> targets.is_empty().not().then_some(HoverAction::GoToType(targets)) |
| <a href=#108 id=108 data-nosnippet>108</a> } |
| <a href=#109 id=109 data-nosnippet>109</a>} |
| <a href=#110 id=110 data-nosnippet>110</a> |
| <a href=#111 id=111 data-nosnippet>111</a><span class="attr">#[derive(Debug, Clone, Eq, PartialEq, Hash)] |
| <a href=#112 id=112 data-nosnippet>112</a></span><span class="kw">pub struct </span>HoverGotoTypeData { |
| <a href=#113 id=113 data-nosnippet>113</a> <span class="kw">pub </span>mod_path: String, |
| <a href=#114 id=114 data-nosnippet>114</a> <span class="kw">pub </span>nav: NavigationTarget, |
| <a href=#115 id=115 data-nosnippet>115</a>} |
| <a href=#116 id=116 data-nosnippet>116</a> |
| <a href=#117 id=117 data-nosnippet>117</a><span class="doccomment">/// Contains the results when hovering over an item |
| <a href=#118 id=118 data-nosnippet>118</a></span><span class="attr">#[derive(Clone, Debug, Default, Hash, PartialEq, Eq)] |
| <a href=#119 id=119 data-nosnippet>119</a></span><span class="kw">pub struct </span>HoverResult { |
| <a href=#120 id=120 data-nosnippet>120</a> <span class="kw">pub </span>markup: Markup, |
| <a href=#121 id=121 data-nosnippet>121</a> <span class="kw">pub </span>actions: Vec<HoverAction>, |
| <a href=#122 id=122 data-nosnippet>122</a>} |
| <a href=#123 id=123 data-nosnippet>123</a> |
| <a href=#124 id=124 data-nosnippet>124</a><span class="comment">// Feature: Hover |
| <a href=#125 id=125 data-nosnippet>125</a>// |
| <a href=#126 id=126 data-nosnippet>126</a>// Shows additional information, like the type of an expression or the documentation for a definition when "focusing" code. |
| <a href=#127 id=127 data-nosnippet>127</a>// Focusing is usually hovering with a mouse, but can also be triggered with a shortcut. |
| <a href=#128 id=128 data-nosnippet>128</a>// |
| <a href=#129 id=129 data-nosnippet>129</a>//  |
| <a href=#130 id=130 data-nosnippet>130</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>hover( |
| <a href=#131 id=131 data-nosnippet>131</a> db: <span class="kw-2">&</span>RootDatabase, |
| <a href=#132 id=132 data-nosnippet>132</a> frange @ FileRange { file_id, range }: FileRange, |
| <a href=#133 id=133 data-nosnippet>133</a> config: <span class="kw-2">&</span>HoverConfig, |
| <a href=#134 id=134 data-nosnippet>134</a>) -> <span class="prelude-ty">Option</span><RangeInfo<HoverResult>> { |
| <a href=#135 id=135 data-nosnippet>135</a> <span class="kw">let </span>sema = <span class="kw-2">&</span>hir::Semantics::new(db); |
| <a href=#136 id=136 data-nosnippet>136</a> <span class="kw">let </span>file = sema.parse_guess_edition(file_id).syntax().clone(); |
| <a href=#137 id=137 data-nosnippet>137</a> <span class="kw">let </span>edition = |
| <a href=#138 id=138 data-nosnippet>138</a> sema.attach_first_edition(file_id).map(|it| it.edition(db)).unwrap_or(Edition::CURRENT); |
| <a href=#139 id=139 data-nosnippet>139</a> <span class="kw">let </span>display_target = sema.first_crate(file_id)<span class="question-mark">?</span>.to_display_target(db); |
| <a href=#140 id=140 data-nosnippet>140</a> <span class="kw">let </span><span class="kw-2">mut </span>res = <span class="kw">if </span>range.is_empty() { |
| <a href=#141 id=141 data-nosnippet>141</a> hover_offset( |
| <a href=#142 id=142 data-nosnippet>142</a> sema, |
| <a href=#143 id=143 data-nosnippet>143</a> FilePosition { file_id, offset: range.start() }, |
| <a href=#144 id=144 data-nosnippet>144</a> file, |
| <a href=#145 id=145 data-nosnippet>145</a> config, |
| <a href=#146 id=146 data-nosnippet>146</a> edition, |
| <a href=#147 id=147 data-nosnippet>147</a> display_target, |
| <a href=#148 id=148 data-nosnippet>148</a> ) |
| <a href=#149 id=149 data-nosnippet>149</a> } <span class="kw">else </span>{ |
| <a href=#150 id=150 data-nosnippet>150</a> hover_ranged(sema, frange, file, config, edition, display_target) |
| <a href=#151 id=151 data-nosnippet>151</a> }<span class="question-mark">?</span>; |
| <a href=#152 id=152 data-nosnippet>152</a> |
| <a href=#153 id=153 data-nosnippet>153</a> <span class="kw">if let </span>HoverDocFormat::PlainText = config.format { |
| <a href=#154 id=154 data-nosnippet>154</a> res.info.markup = remove_markdown(res.info.markup.as_str()).into(); |
| <a href=#155 id=155 data-nosnippet>155</a> } |
| <a href=#156 id=156 data-nosnippet>156</a> <span class="prelude-val">Some</span>(res) |
| <a href=#157 id=157 data-nosnippet>157</a>} |
| <a href=#158 id=158 data-nosnippet>158</a> |
| <a href=#159 id=159 data-nosnippet>159</a><span class="attr">#[allow(clippy::field_reassign_with_default)] |
| <a href=#160 id=160 data-nosnippet>160</a></span><span class="kw">fn </span>hover_offset( |
| <a href=#161 id=161 data-nosnippet>161</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#162 id=162 data-nosnippet>162</a> FilePosition { file_id, offset }: FilePosition, |
| <a href=#163 id=163 data-nosnippet>163</a> file: SyntaxNode, |
| <a href=#164 id=164 data-nosnippet>164</a> config: <span class="kw-2">&</span>HoverConfig, |
| <a href=#165 id=165 data-nosnippet>165</a> edition: Edition, |
| <a href=#166 id=166 data-nosnippet>166</a> display_target: DisplayTarget, |
| <a href=#167 id=167 data-nosnippet>167</a>) -> <span class="prelude-ty">Option</span><RangeInfo<HoverResult>> { |
| <a href=#168 id=168 data-nosnippet>168</a> <span class="kw">let </span>original_token = pick_best_token(file.token_at_offset(offset), |kind| <span class="kw">match </span>kind { |
| <a href=#169 id=169 data-nosnippet>169</a> IDENT |
| <a href=#170 id=170 data-nosnippet>170</a> | INT_NUMBER |
| <a href=#171 id=171 data-nosnippet>171</a> | LIFETIME_IDENT |
| <a href=#172 id=172 data-nosnippet>172</a> | <span class="macro">T!</span>[<span class="self">self</span>] |
| <a href=#173 id=173 data-nosnippet>173</a> | <span class="macro">T!</span>[<span class="kw">super</span>] |
| <a href=#174 id=174 data-nosnippet>174</a> | <span class="macro">T!</span>[<span class="kw">crate</span>] |
| <a href=#175 id=175 data-nosnippet>175</a> | <span class="macro">T!</span>[<span class="self">Self</span>] |
| <a href=#176 id=176 data-nosnippet>176</a> | <span class="macro">T!</span>[<span class="kw">_</span>] => <span class="number">4</span>, |
| <a href=#177 id=177 data-nosnippet>177</a> <span class="comment">// index and prefix ops and closure pipe |
| <a href=#178 id=178 data-nosnippet>178</a> </span><span class="macro">T!</span>[<span class="string">'['</span>] | <span class="macro">T!</span>[<span class="string">']'</span>] | <span class="macro">T!</span>[<span class="question-mark">?</span>] | <span class="macro">T!</span>[<span class="kw-2">*</span>] | <span class="macro">T!</span>[-] | <span class="macro">T!</span>[!] | <span class="macro">T!</span>[|] => <span class="number">3</span>, |
| <a href=#179 id=179 data-nosnippet>179</a> kind <span class="kw">if </span>kind.is_keyword(edition) => <span class="number">2</span>, |
| <a href=#180 id=180 data-nosnippet>180</a> <span class="macro">T!</span>[<span class="string">'('</span>] | <span class="macro">T!</span>[<span class="string">')'</span>] => <span class="number">2</span>, |
| <a href=#181 id=181 data-nosnippet>181</a> kind <span class="kw">if </span>kind.is_trivia() => <span class="number">0</span>, |
| <a href=#182 id=182 data-nosnippet>182</a> <span class="kw">_ </span>=> <span class="number">1</span>, |
| <a href=#183 id=183 data-nosnippet>183</a> })<span class="question-mark">?</span>; |
| <a href=#184 id=184 data-nosnippet>184</a> |
| <a href=#185 id=185 data-nosnippet>185</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(doc_comment) = token_as_doc_comment(<span class="kw-2">&</span>original_token) { |
| <a href=#186 id=186 data-nosnippet>186</a> <span class="macro">cov_mark::hit!</span>(no_highlight_on_comment_hover); |
| <a href=#187 id=187 data-nosnippet>187</a> <span class="kw">return </span>doc_comment.get_definition_with_descend_at(sema, offset, |def, node, range| { |
| <a href=#188 id=188 data-nosnippet>188</a> <span class="kw">let </span>res = hover_for_definition( |
| <a href=#189 id=189 data-nosnippet>189</a> sema, |
| <a href=#190 id=190 data-nosnippet>190</a> file_id, |
| <a href=#191 id=191 data-nosnippet>191</a> def, |
| <a href=#192 id=192 data-nosnippet>192</a> <span class="prelude-val">None</span>, |
| <a href=#193 id=193 data-nosnippet>193</a> <span class="kw-2">&</span>node, |
| <a href=#194 id=194 data-nosnippet>194</a> <span class="prelude-val">None</span>, |
| <a href=#195 id=195 data-nosnippet>195</a> <span class="bool-val">false</span>, |
| <a href=#196 id=196 data-nosnippet>196</a> config, |
| <a href=#197 id=197 data-nosnippet>197</a> edition, |
| <a href=#198 id=198 data-nosnippet>198</a> display_target, |
| <a href=#199 id=199 data-nosnippet>199</a> ); |
| <a href=#200 id=200 data-nosnippet>200</a> <span class="prelude-val">Some</span>(RangeInfo::new(range, res)) |
| <a href=#201 id=201 data-nosnippet>201</a> }); |
| <a href=#202 id=202 data-nosnippet>202</a> } |
| <a href=#203 id=203 data-nosnippet>203</a> |
| <a href=#204 id=204 data-nosnippet>204</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=#205 id=205 data-nosnippet>205</a> sema.check_for_format_args_template(original_token.clone(), offset) |
| <a href=#206 id=206 data-nosnippet>206</a> { |
| <a href=#207 id=207 data-nosnippet>207</a> <span class="kw">let </span>res = hover_for_definition( |
| <a href=#208 id=208 data-nosnippet>208</a> sema, |
| <a href=#209 id=209 data-nosnippet>209</a> file_id, |
| <a href=#210 id=210 data-nosnippet>210</a> Definition::from(resolution<span class="question-mark">?</span>), |
| <a href=#211 id=211 data-nosnippet>211</a> <span class="prelude-val">None</span>, |
| <a href=#212 id=212 data-nosnippet>212</a> <span class="kw-2">&</span>original_token.parent()<span class="question-mark">?</span>, |
| <a href=#213 id=213 data-nosnippet>213</a> <span class="prelude-val">None</span>, |
| <a href=#214 id=214 data-nosnippet>214</a> <span class="bool-val">false</span>, |
| <a href=#215 id=215 data-nosnippet>215</a> config, |
| <a href=#216 id=216 data-nosnippet>216</a> edition, |
| <a href=#217 id=217 data-nosnippet>217</a> display_target, |
| <a href=#218 id=218 data-nosnippet>218</a> ); |
| <a href=#219 id=219 data-nosnippet>219</a> <span class="kw">return </span><span class="prelude-val">Some</span>(RangeInfo::new(range, res)); |
| <a href=#220 id=220 data-nosnippet>220</a> } |
| <a href=#221 id=221 data-nosnippet>221</a> |
| <a href=#222 id=222 data-nosnippet>222</a> <span class="comment">// prefer descending the same token kind in attribute expansions, in normal macros text |
| <a href=#223 id=223 data-nosnippet>223</a> // equivalency is more important |
| <a href=#224 id=224 data-nosnippet>224</a> </span><span class="kw">let </span><span class="kw-2">mut </span>descended = sema.descend_into_macros(original_token.clone()); |
| <a href=#225 id=225 data-nosnippet>225</a> |
| <a href=#226 id=226 data-nosnippet>226</a> <span class="kw">let </span>ranker = Ranker::from_token(<span class="kw-2">&</span>original_token); |
| <a href=#227 id=227 data-nosnippet>227</a> |
| <a href=#228 id=228 data-nosnippet>228</a> descended.sort_by_cached_key(|tok| !ranker.rank_token(tok)); |
| <a href=#229 id=229 data-nosnippet>229</a> |
| <a href=#230 id=230 data-nosnippet>230</a> <span class="kw">let </span><span class="kw-2">mut </span>res = <span class="macro">vec!</span>[]; |
| <a href=#231 id=231 data-nosnippet>231</a> <span class="kw">for </span>token <span class="kw">in </span>descended { |
| <a href=#232 id=232 data-nosnippet>232</a> <span class="kw">let </span>is_same_kind = token.kind() == ranker.kind; |
| <a href=#233 id=233 data-nosnippet>233</a> <span class="kw">let </span>lint_hover = (|| { |
| <a href=#234 id=234 data-nosnippet>234</a> <span class="comment">// FIXME: Definition should include known lints and the like instead of having this special case here |
| <a href=#235 id=235 data-nosnippet>235</a> </span><span class="kw">let </span>attr = token.parent_ancestors().find_map(ast::Attr::cast)<span class="question-mark">?</span>; |
| <a href=#236 id=236 data-nosnippet>236</a> render::try_for_lint(<span class="kw-2">&</span>attr, <span class="kw-2">&</span>token) |
| <a href=#237 id=237 data-nosnippet>237</a> })(); |
| <a href=#238 id=238 data-nosnippet>238</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(lint_hover) = lint_hover { |
| <a href=#239 id=239 data-nosnippet>239</a> res.push(lint_hover); |
| <a href=#240 id=240 data-nosnippet>240</a> <span class="kw">continue</span>; |
| <a href=#241 id=241 data-nosnippet>241</a> } |
| <a href=#242 id=242 data-nosnippet>242</a> <span class="kw">let </span>definitions = (|| { |
| <a href=#243 id=243 data-nosnippet>243</a> <span class="prelude-val">Some</span>( |
| <a href=#244 id=244 data-nosnippet>244</a> <span class="lifetime">'a</span>: { |
| <a href=#245 id=245 data-nosnippet>245</a> <span class="kw">let </span>node = token.parent()<span class="question-mark">?</span>; |
| <a href=#246 id=246 data-nosnippet>246</a> |
| <a href=#247 id=247 data-nosnippet>247</a> <span class="comment">// special case macro calls, we wanna render the invoked arm index |
| <a href=#248 id=248 data-nosnippet>248</a> </span><span class="kw">if let </span><span class="prelude-val">Some</span>(name) = ast::NameRef::cast(node.clone()) |
| <a href=#249 id=249 data-nosnippet>249</a> && <span class="kw">let </span><span class="prelude-val">Some</span>(path_seg) = |
| <a href=#250 id=250 data-nosnippet>250</a> name.syntax().parent().and_then(ast::PathSegment::cast) |
| <a href=#251 id=251 data-nosnippet>251</a> && <span class="kw">let </span><span class="prelude-val">Some</span>(macro_call) = path_seg |
| <a href=#252 id=252 data-nosnippet>252</a> .parent_path() |
| <a href=#253 id=253 data-nosnippet>253</a> .syntax() |
| <a href=#254 id=254 data-nosnippet>254</a> .parent() |
| <a href=#255 id=255 data-nosnippet>255</a> .and_then(ast::MacroCall::cast) |
| <a href=#256 id=256 data-nosnippet>256</a> && <span class="kw">let </span><span class="prelude-val">Some</span>(macro_) = sema.resolve_macro_call(<span class="kw-2">&</span>macro_call) { |
| <a href=#257 id=257 data-nosnippet>257</a> <span class="kw">break </span><span class="lifetime">'a </span><span class="macro">vec!</span>[( |
| <a href=#258 id=258 data-nosnippet>258</a> (Definition::Macro(macro_), <span class="prelude-val">None</span>), |
| <a href=#259 id=259 data-nosnippet>259</a> sema.resolve_macro_call_arm(<span class="kw-2">&</span>macro_call), |
| <a href=#260 id=260 data-nosnippet>260</a> <span class="bool-val">false</span>, |
| <a href=#261 id=261 data-nosnippet>261</a> node, |
| <a href=#262 id=262 data-nosnippet>262</a> )]; |
| <a href=#263 id=263 data-nosnippet>263</a> } |
| <a href=#264 id=264 data-nosnippet>264</a> |
| <a href=#265 id=265 data-nosnippet>265</a> <span class="kw">match </span>IdentClass::classify_node(sema, <span class="kw-2">&</span>node)<span class="question-mark">? </span>{ |
| <a href=#266 id=266 data-nosnippet>266</a> <span class="comment">// It's better for us to fall back to the keyword hover here, |
| <a href=#267 id=267 data-nosnippet>267</a> // rendering poll is very confusing |
| <a href=#268 id=268 data-nosnippet>268</a> </span>IdentClass::Operator(OperatorClass::Await(<span class="kw">_</span>)) => <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#269 id=269 data-nosnippet>269</a> |
| <a href=#270 id=270 data-nosnippet>270</a> IdentClass::NameRefClass(NameRefClass::ExternCrateShorthand { |
| <a href=#271 id=271 data-nosnippet>271</a> decl, |
| <a href=#272 id=272 data-nosnippet>272</a> .. |
| <a href=#273 id=273 data-nosnippet>273</a> }) => { |
| <a href=#274 id=274 data-nosnippet>274</a> <span class="macro">vec!</span>[((Definition::ExternCrateDecl(decl), <span class="prelude-val">None</span>), <span class="prelude-val">None</span>, <span class="bool-val">false</span>, node)] |
| <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> class => { |
| <a href=#278 id=278 data-nosnippet>278</a> <span class="kw">let </span>render_extras = <span class="macro">matches!</span>(class, IdentClass::NameClass(<span class="kw">_</span>)) |
| <a href=#279 id=279 data-nosnippet>279</a> <span class="comment">// Render extra information for `Self` keyword as well |
| <a href=#280 id=280 data-nosnippet>280</a> </span>|| ast::NameRef::cast(node.clone()).is_some_and(|name_ref| name_ref.token_kind() == SyntaxKind::SELF_TYPE_KW); |
| <a href=#281 id=281 data-nosnippet>281</a> multizip(( |
| <a href=#282 id=282 data-nosnippet>282</a> class.definitions(), |
| <a href=#283 id=283 data-nosnippet>283</a> iter::repeat(<span class="prelude-val">None</span>), |
| <a href=#284 id=284 data-nosnippet>284</a> iter::repeat(render_extras), |
| <a href=#285 id=285 data-nosnippet>285</a> iter::repeat(node), |
| <a href=#286 id=286 data-nosnippet>286</a> )) |
| <a href=#287 id=287 data-nosnippet>287</a> .collect::<Vec<<span class="kw">_</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> .into_iter() |
| <a href=#292 id=292 data-nosnippet>292</a> .unique_by(|<span class="kw-2">&</span>((def, <span class="kw">_</span>), <span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>)| def) |
| <a href=#293 id=293 data-nosnippet>293</a> .map(|((def, subst), macro_arm, hovered_definition, node)| { |
| <a href=#294 id=294 data-nosnippet>294</a> hover_for_definition( |
| <a href=#295 id=295 data-nosnippet>295</a> sema, |
| <a href=#296 id=296 data-nosnippet>296</a> file_id, |
| <a href=#297 id=297 data-nosnippet>297</a> def, |
| <a href=#298 id=298 data-nosnippet>298</a> subst, |
| <a href=#299 id=299 data-nosnippet>299</a> <span class="kw-2">&</span>node, |
| <a href=#300 id=300 data-nosnippet>300</a> macro_arm, |
| <a href=#301 id=301 data-nosnippet>301</a> hovered_definition, |
| <a href=#302 id=302 data-nosnippet>302</a> config, |
| <a href=#303 id=303 data-nosnippet>303</a> edition, |
| <a href=#304 id=304 data-nosnippet>304</a> display_target, |
| <a href=#305 id=305 data-nosnippet>305</a> ) |
| <a href=#306 id=306 data-nosnippet>306</a> }) |
| <a href=#307 id=307 data-nosnippet>307</a> .collect::<Vec<<span class="kw">_</span>>>(), |
| <a href=#308 id=308 data-nosnippet>308</a> ) |
| <a href=#309 id=309 data-nosnippet>309</a> })(); |
| <a href=#310 id=310 data-nosnippet>310</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(definitions) = definitions { |
| <a href=#311 id=311 data-nosnippet>311</a> res.extend(definitions); |
| <a href=#312 id=312 data-nosnippet>312</a> <span class="kw">continue</span>; |
| <a href=#313 id=313 data-nosnippet>313</a> } |
| <a href=#314 id=314 data-nosnippet>314</a> <span class="kw">let </span>keywords = || render::keyword(sema, config, <span class="kw-2">&</span>token, edition, display_target); |
| <a href=#315 id=315 data-nosnippet>315</a> <span class="kw">let </span>underscore = || { |
| <a href=#316 id=316 data-nosnippet>316</a> <span class="kw">if </span>!is_same_kind { |
| <a href=#317 id=317 data-nosnippet>317</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#318 id=318 data-nosnippet>318</a> } |
| <a href=#319 id=319 data-nosnippet>319</a> render::underscore(sema, config, <span class="kw-2">&</span>token, edition, display_target) |
| <a href=#320 id=320 data-nosnippet>320</a> }; |
| <a href=#321 id=321 data-nosnippet>321</a> <span class="kw">let </span>rest_pat = || { |
| <a href=#322 id=322 data-nosnippet>322</a> <span class="kw">if </span>!is_same_kind || token.kind() != DOT2 { |
| <a href=#323 id=323 data-nosnippet>323</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#324 id=324 data-nosnippet>324</a> } |
| <a href=#325 id=325 data-nosnippet>325</a> |
| <a href=#326 id=326 data-nosnippet>326</a> <span class="kw">let </span>rest_pat = token.parent().and_then(ast::RestPat::cast)<span class="question-mark">?</span>; |
| <a href=#327 id=327 data-nosnippet>327</a> <span class="kw">let </span>record_pat_field_list = |
| <a href=#328 id=328 data-nosnippet>328</a> rest_pat.syntax().parent().and_then(ast::RecordPatFieldList::cast)<span class="question-mark">?</span>; |
| <a href=#329 id=329 data-nosnippet>329</a> |
| <a href=#330 id=330 data-nosnippet>330</a> <span class="kw">let </span>record_pat = |
| <a href=#331 id=331 data-nosnippet>331</a> record_pat_field_list.syntax().parent().and_then(ast::RecordPat::cast)<span class="question-mark">?</span>; |
| <a href=#332 id=332 data-nosnippet>332</a> |
| <a href=#333 id=333 data-nosnippet>333</a> <span class="prelude-val">Some</span>(render::struct_rest_pat(sema, config, <span class="kw-2">&</span>record_pat, edition, display_target)) |
| <a href=#334 id=334 data-nosnippet>334</a> }; |
| <a href=#335 id=335 data-nosnippet>335</a> <span class="kw">let </span>call = || { |
| <a href=#336 id=336 data-nosnippet>336</a> <span class="kw">if </span>!is_same_kind || token.kind() != <span class="macro">T!</span>[<span class="string">'('</span>] && token.kind() != <span class="macro">T!</span>[<span class="string">')'</span>] { |
| <a href=#337 id=337 data-nosnippet>337</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#338 id=338 data-nosnippet>338</a> } |
| <a href=#339 id=339 data-nosnippet>339</a> <span class="kw">let </span>arg_list = token.parent().and_then(ast::ArgList::cast)<span class="question-mark">?</span>.syntax().parent()<span class="question-mark">?</span>; |
| <a href=#340 id=340 data-nosnippet>340</a> <span class="kw">let </span>call_expr = <span class="macro">syntax::match_ast!</span> { |
| <a href=#341 id=341 data-nosnippet>341</a> <span class="kw">match </span>arg_list { |
| <a href=#342 id=342 data-nosnippet>342</a> ast::CallExpr(expr) => expr.into(), |
| <a href=#343 id=343 data-nosnippet>343</a> ast::MethodCallExpr(expr) => expr.into(), |
| <a href=#344 id=344 data-nosnippet>344</a> <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">None</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> render::type_info_of(sema, config, <span class="kw-2">&</span>Either::Left(call_expr), edition, display_target) |
| <a href=#348 id=348 data-nosnippet>348</a> }; |
| <a href=#349 id=349 data-nosnippet>349</a> <span class="kw">let </span>closure = || { |
| <a href=#350 id=350 data-nosnippet>350</a> <span class="kw">if </span>!is_same_kind || token.kind() != <span class="macro">T!</span>[|] { |
| <a href=#351 id=351 data-nosnippet>351</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#352 id=352 data-nosnippet>352</a> } |
| <a href=#353 id=353 data-nosnippet>353</a> <span class="kw">let </span>c = token.parent().and_then(|x| x.parent()).and_then(ast::ClosureExpr::cast)<span class="question-mark">?</span>; |
| <a href=#354 id=354 data-nosnippet>354</a> render::closure_expr(sema, config, c, edition, display_target) |
| <a href=#355 id=355 data-nosnippet>355</a> }; |
| <a href=#356 id=356 data-nosnippet>356</a> <span class="kw">let </span>literal = || { |
| <a href=#357 id=357 data-nosnippet>357</a> render::literal(sema, original_token.clone(), display_target) |
| <a href=#358 id=358 data-nosnippet>358</a> .map(|markup| HoverResult { markup, actions: <span class="macro">vec!</span>[] }) |
| <a href=#359 id=359 data-nosnippet>359</a> }; |
| <a href=#360 id=360 data-nosnippet>360</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(result) = keywords() |
| <a href=#361 id=361 data-nosnippet>361</a> .or_else(underscore) |
| <a href=#362 id=362 data-nosnippet>362</a> .or_else(rest_pat) |
| <a href=#363 id=363 data-nosnippet>363</a> .or_else(call) |
| <a href=#364 id=364 data-nosnippet>364</a> .or_else(closure) |
| <a href=#365 id=365 data-nosnippet>365</a> .or_else(literal) |
| <a href=#366 id=366 data-nosnippet>366</a> { |
| <a href=#367 id=367 data-nosnippet>367</a> res.push(result) |
| <a href=#368 id=368 data-nosnippet>368</a> } |
| <a href=#369 id=369 data-nosnippet>369</a> } |
| <a href=#370 id=370 data-nosnippet>370</a> |
| <a href=#371 id=371 data-nosnippet>371</a> res.into_iter() |
| <a href=#372 id=372 data-nosnippet>372</a> .unique() |
| <a href=#373 id=373 data-nosnippet>373</a> .reduce(|<span class="kw-2">mut </span>acc: HoverResult, HoverResult { markup, actions }| { |
| <a href=#374 id=374 data-nosnippet>374</a> acc.actions.extend(actions); |
| <a href=#375 id=375 data-nosnippet>375</a> acc.markup = Markup::from(<span class="macro">format!</span>(<span class="string">"{}\n\n---\n{markup}"</span>, acc.markup)); |
| <a href=#376 id=376 data-nosnippet>376</a> acc |
| <a href=#377 id=377 data-nosnippet>377</a> }) |
| <a href=#378 id=378 data-nosnippet>378</a> .map(|<span class="kw-2">mut </span>res: HoverResult| { |
| <a href=#379 id=379 data-nosnippet>379</a> res.actions = dedupe_or_merge_hover_actions(res.actions); |
| <a href=#380 id=380 data-nosnippet>380</a> RangeInfo::new(original_token.text_range(), res) |
| <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> |
| <a href=#384 id=384 data-nosnippet>384</a><span class="kw">fn </span>hover_ranged( |
| <a href=#385 id=385 data-nosnippet>385</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#386 id=386 data-nosnippet>386</a> FileRange { range, .. }: FileRange, |
| <a href=#387 id=387 data-nosnippet>387</a> file: SyntaxNode, |
| <a href=#388 id=388 data-nosnippet>388</a> config: <span class="kw-2">&</span>HoverConfig, |
| <a href=#389 id=389 data-nosnippet>389</a> edition: Edition, |
| <a href=#390 id=390 data-nosnippet>390</a> display_target: DisplayTarget, |
| <a href=#391 id=391 data-nosnippet>391</a>) -> <span class="prelude-ty">Option</span><RangeInfo<HoverResult>> { |
| <a href=#392 id=392 data-nosnippet>392</a> <span class="comment">// FIXME: make this work in attributes |
| <a href=#393 id=393 data-nosnippet>393</a> </span><span class="kw">let </span>expr_or_pat = file |
| <a href=#394 id=394 data-nosnippet>394</a> .covering_element(range) |
| <a href=#395 id=395 data-nosnippet>395</a> .ancestors() |
| <a href=#396 id=396 data-nosnippet>396</a> .take_while(|it| ast::MacroCall::can_cast(it.kind()) || !ast::Item::can_cast(it.kind())) |
| <a href=#397 id=397 data-nosnippet>397</a> .find_map(Either::<ast::Expr, ast::Pat>::cast)<span class="question-mark">?</span>; |
| <a href=#398 id=398 data-nosnippet>398</a> <span class="kw">let </span>res = <span class="kw">match </span><span class="kw-2">&</span>expr_or_pat { |
| <a href=#399 id=399 data-nosnippet>399</a> Either::Left(ast::Expr::TryExpr(try_expr)) => { |
| <a href=#400 id=400 data-nosnippet>400</a> render::try_expr(sema, config, try_expr, edition, display_target) |
| <a href=#401 id=401 data-nosnippet>401</a> } |
| <a href=#402 id=402 data-nosnippet>402</a> Either::Left(ast::Expr::PrefixExpr(prefix_expr)) |
| <a href=#403 id=403 data-nosnippet>403</a> <span class="kw">if </span>prefix_expr.op_kind() == <span class="prelude-val">Some</span>(ast::UnaryOp::Deref) => |
| <a href=#404 id=404 data-nosnippet>404</a> { |
| <a href=#405 id=405 data-nosnippet>405</a> render::deref_expr(sema, config, prefix_expr, edition, display_target) |
| <a href=#406 id=406 data-nosnippet>406</a> } |
| <a href=#407 id=407 data-nosnippet>407</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#408 id=408 data-nosnippet>408</a> }; |
| <a href=#409 id=409 data-nosnippet>409</a> <span class="kw">let </span>res = |
| <a href=#410 id=410 data-nosnippet>410</a> res.or_else(|| render::type_info_of(sema, config, <span class="kw-2">&</span>expr_or_pat, edition, display_target)); |
| <a href=#411 id=411 data-nosnippet>411</a> res.map(|it| { |
| <a href=#412 id=412 data-nosnippet>412</a> <span class="kw">let </span>range = <span class="kw">match </span>expr_or_pat { |
| <a href=#413 id=413 data-nosnippet>413</a> Either::Left(it) => it.syntax().text_range(), |
| <a href=#414 id=414 data-nosnippet>414</a> Either::Right(it) => it.syntax().text_range(), |
| <a href=#415 id=415 data-nosnippet>415</a> }; |
| <a href=#416 id=416 data-nosnippet>416</a> RangeInfo::new(range, it) |
| <a href=#417 id=417 data-nosnippet>417</a> }) |
| <a href=#418 id=418 data-nosnippet>418</a>} |
| <a href=#419 id=419 data-nosnippet>419</a> |
| <a href=#420 id=420 data-nosnippet>420</a><span class="comment">// FIXME: Why is this pub(crate)? |
| <a href=#421 id=421 data-nosnippet>421</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>hover_for_definition( |
| <a href=#422 id=422 data-nosnippet>422</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#423 id=423 data-nosnippet>423</a> file_id: FileId, |
| <a href=#424 id=424 data-nosnippet>424</a> def: Definition, |
| <a href=#425 id=425 data-nosnippet>425</a> subst: <span class="prelude-ty">Option</span><GenericSubstitution<<span class="lifetime">'_</span>>>, |
| <a href=#426 id=426 data-nosnippet>426</a> scope_node: <span class="kw-2">&</span>SyntaxNode, |
| <a href=#427 id=427 data-nosnippet>427</a> macro_arm: <span class="prelude-ty">Option</span><u32>, |
| <a href=#428 id=428 data-nosnippet>428</a> render_extras: bool, |
| <a href=#429 id=429 data-nosnippet>429</a> config: <span class="kw-2">&</span>HoverConfig, |
| <a href=#430 id=430 data-nosnippet>430</a> edition: Edition, |
| <a href=#431 id=431 data-nosnippet>431</a> display_target: DisplayTarget, |
| <a href=#432 id=432 data-nosnippet>432</a>) -> HoverResult { |
| <a href=#433 id=433 data-nosnippet>433</a> <span class="kw">let </span>famous_defs = <span class="kw">match </span><span class="kw-2">&</span>def { |
| <a href=#434 id=434 data-nosnippet>434</a> Definition::BuiltinType(<span class="kw">_</span>) => sema.scope(scope_node).map(|it| FamousDefs(sema, it.krate())), |
| <a href=#435 id=435 data-nosnippet>435</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#436 id=436 data-nosnippet>436</a> }; |
| <a href=#437 id=437 data-nosnippet>437</a> |
| <a href=#438 id=438 data-nosnippet>438</a> <span class="kw">let </span>db = sema.db; |
| <a href=#439 id=439 data-nosnippet>439</a> <span class="kw">let </span>def_ty = <span class="kw">match </span>def { |
| <a href=#440 id=440 data-nosnippet>440</a> Definition::Local(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#441 id=441 data-nosnippet>441</a> Definition::GenericParam(hir::GenericParam::ConstParam(it)) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#442 id=442 data-nosnippet>442</a> Definition::GenericParam(hir::GenericParam::TypeParam(it)) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#443 id=443 data-nosnippet>443</a> Definition::Field(field) => <span class="prelude-val">Some</span>(field.ty(db).to_type(db)), |
| <a href=#444 id=444 data-nosnippet>444</a> Definition::TupleField(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#445 id=445 data-nosnippet>445</a> Definition::Function(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#446 id=446 data-nosnippet>446</a> Definition::Adt(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#447 id=447 data-nosnippet>447</a> Definition::Const(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#448 id=448 data-nosnippet>448</a> Definition::Static(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#449 id=449 data-nosnippet>449</a> Definition::TypeAlias(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#450 id=450 data-nosnippet>450</a> Definition::BuiltinType(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#451 id=451 data-nosnippet>451</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#452 id=452 data-nosnippet>452</a> }; |
| <a href=#453 id=453 data-nosnippet>453</a> <span class="kw">let </span>notable_traits = def_ty.map(|ty| notable_traits(db, <span class="kw-2">&</span>ty)).unwrap_or_default(); |
| <a href=#454 id=454 data-nosnippet>454</a> <span class="kw">let </span>subst_types = subst.map(|subst| subst.types(db)); |
| <a href=#455 id=455 data-nosnippet>455</a> |
| <a href=#456 id=456 data-nosnippet>456</a> <span class="kw">let </span>(markup, range_map) = render::definition( |
| <a href=#457 id=457 data-nosnippet>457</a> sema.db, |
| <a href=#458 id=458 data-nosnippet>458</a> def, |
| <a href=#459 id=459 data-nosnippet>459</a> famous_defs.as_ref(), |
| <a href=#460 id=460 data-nosnippet>460</a> <span class="kw-2">&</span>notable_traits, |
| <a href=#461 id=461 data-nosnippet>461</a> macro_arm, |
| <a href=#462 id=462 data-nosnippet>462</a> render_extras, |
| <a href=#463 id=463 data-nosnippet>463</a> subst_types.as_ref(), |
| <a href=#464 id=464 data-nosnippet>464</a> config, |
| <a href=#465 id=465 data-nosnippet>465</a> edition, |
| <a href=#466 id=466 data-nosnippet>466</a> display_target, |
| <a href=#467 id=467 data-nosnippet>467</a> ); |
| <a href=#468 id=468 data-nosnippet>468</a> HoverResult { |
| <a href=#469 id=469 data-nosnippet>469</a> markup: render::process_markup(sema.db, def, <span class="kw-2">&</span>markup, range_map, config), |
| <a href=#470 id=470 data-nosnippet>470</a> actions: [ |
| <a href=#471 id=471 data-nosnippet>471</a> show_fn_references_action(sema, def), |
| <a href=#472 id=472 data-nosnippet>472</a> show_implementations_action(sema, def), |
| <a href=#473 id=473 data-nosnippet>473</a> runnable_action(sema, def, file_id), |
| <a href=#474 id=474 data-nosnippet>474</a> goto_type_action_for_def(sema, def, <span class="kw-2">&</span>notable_traits, subst_types, edition), |
| <a href=#475 id=475 data-nosnippet>475</a> ] |
| <a href=#476 id=476 data-nosnippet>476</a> .into_iter() |
| <a href=#477 id=477 data-nosnippet>477</a> .flatten() |
| <a href=#478 id=478 data-nosnippet>478</a> .collect(), |
| <a href=#479 id=479 data-nosnippet>479</a> } |
| <a href=#480 id=480 data-nosnippet>480</a>} |
| <a href=#481 id=481 data-nosnippet>481</a> |
| <a href=#482 id=482 data-nosnippet>482</a><span class="kw">fn </span>notable_traits<<span class="lifetime">'db</span>>( |
| <a href=#483 id=483 data-nosnippet>483</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span>RootDatabase, |
| <a href=#484 id=484 data-nosnippet>484</a> ty: <span class="kw-2">&</span>hir::Type<<span class="lifetime">'db</span>>, |
| <a href=#485 id=485 data-nosnippet>485</a>) -> Vec<(hir::Trait, Vec<(<span class="prelude-ty">Option</span><hir::Type<<span class="lifetime">'db</span>>>, hir::Name)>)> { |
| <a href=#486 id=486 data-nosnippet>486</a> <span class="kw">if </span>ty.is_unknown() { |
| <a href=#487 id=487 data-nosnippet>487</a> <span class="comment">// The trait solver returns "yes" to the question whether the error type |
| <a href=#488 id=488 data-nosnippet>488</a> // impls any trait, and we don't want to show it as having any notable trait. |
| <a href=#489 id=489 data-nosnippet>489</a> </span><span class="kw">return </span>Vec::new(); |
| <a href=#490 id=490 data-nosnippet>490</a> } |
| <a href=#491 id=491 data-nosnippet>491</a> |
| <a href=#492 id=492 data-nosnippet>492</a> db.notable_traits_in_deps(ty.krate(db).into()) |
| <a href=#493 id=493 data-nosnippet>493</a> .iter() |
| <a href=#494 id=494 data-nosnippet>494</a> .flat_map(|it| <span class="kw-2">&**</span>it) |
| <a href=#495 id=495 data-nosnippet>495</a> .filter_map(<span class="kw">move </span>|<span class="kw-2">&</span>trait_| { |
| <a href=#496 id=496 data-nosnippet>496</a> <span class="kw">let </span>trait_ = trait_.into(); |
| <a href=#497 id=497 data-nosnippet>497</a> ty.impls_trait(db, trait_, <span class="kw-2">&</span>[]).then(|| { |
| <a href=#498 id=498 data-nosnippet>498</a> ( |
| <a href=#499 id=499 data-nosnippet>499</a> trait_, |
| <a href=#500 id=500 data-nosnippet>500</a> trait_ |
| <a href=#501 id=501 data-nosnippet>501</a> .items(db) |
| <a href=#502 id=502 data-nosnippet>502</a> .into_iter() |
| <a href=#503 id=503 data-nosnippet>503</a> .filter_map(hir::AssocItem::as_type_alias) |
| <a href=#504 id=504 data-nosnippet>504</a> .map(|alias| { |
| <a href=#505 id=505 data-nosnippet>505</a> (ty.normalize_trait_assoc_type(db, <span class="kw-2">&</span>[], alias), alias.name(db)) |
| <a href=#506 id=506 data-nosnippet>506</a> }) |
| <a href=#507 id=507 data-nosnippet>507</a> .collect::<Vec<<span class="kw">_</span>>>(), |
| <a href=#508 id=508 data-nosnippet>508</a> ) |
| <a href=#509 id=509 data-nosnippet>509</a> }) |
| <a href=#510 id=510 data-nosnippet>510</a> }) |
| <a href=#511 id=511 data-nosnippet>511</a> .sorted_by_cached_key(|(trait_, <span class="kw">_</span>)| trait_.name(db)) |
| <a href=#512 id=512 data-nosnippet>512</a> .collect::<Vec<<span class="kw">_</span>>>() |
| <a href=#513 id=513 data-nosnippet>513</a>} |
| <a href=#514 id=514 data-nosnippet>514</a> |
| <a href=#515 id=515 data-nosnippet>515</a><span class="kw">fn </span>show_implementations_action( |
| <a href=#516 id=516 data-nosnippet>516</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#517 id=517 data-nosnippet>517</a> def: Definition, |
| <a href=#518 id=518 data-nosnippet>518</a>) -> <span class="prelude-ty">Option</span><HoverAction> { |
| <a href=#519 id=519 data-nosnippet>519</a> <span class="kw">fn </span>to_action(nav_target: NavigationTarget) -> HoverAction { |
| <a href=#520 id=520 data-nosnippet>520</a> HoverAction::Implementation(FilePosition { |
| <a href=#521 id=521 data-nosnippet>521</a> file_id: nav_target.file_id, |
| <a href=#522 id=522 data-nosnippet>522</a> offset: nav_target.focus_or_full_range().start(), |
| <a href=#523 id=523 data-nosnippet>523</a> }) |
| <a href=#524 id=524 data-nosnippet>524</a> } |
| <a href=#525 id=525 data-nosnippet>525</a> |
| <a href=#526 id=526 data-nosnippet>526</a> <span class="kw">let </span>adt = <span class="kw">match </span>def { |
| <a href=#527 id=527 data-nosnippet>527</a> Definition::Trait(it) => { |
| <a href=#528 id=528 data-nosnippet>528</a> <span class="kw">return </span>it.try_to_nav(sema).map(UpmappingResult::call_site).map(to_action); |
| <a href=#529 id=529 data-nosnippet>529</a> } |
| <a href=#530 id=530 data-nosnippet>530</a> Definition::Adt(it) => <span class="prelude-val">Some</span>(it), |
| <a href=#531 id=531 data-nosnippet>531</a> Definition::SelfType(it) => it.self_ty(sema.db).as_adt(), |
| <a href=#532 id=532 data-nosnippet>532</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#533 id=533 data-nosnippet>533</a> }<span class="question-mark">?</span>; |
| <a href=#534 id=534 data-nosnippet>534</a> adt.try_to_nav(sema).map(UpmappingResult::call_site).map(to_action) |
| <a href=#535 id=535 data-nosnippet>535</a>} |
| <a href=#536 id=536 data-nosnippet>536</a> |
| <a href=#537 id=537 data-nosnippet>537</a><span class="kw">fn </span>show_fn_references_action( |
| <a href=#538 id=538 data-nosnippet>538</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#539 id=539 data-nosnippet>539</a> def: Definition, |
| <a href=#540 id=540 data-nosnippet>540</a>) -> <span class="prelude-ty">Option</span><HoverAction> { |
| <a href=#541 id=541 data-nosnippet>541</a> <span class="kw">match </span>def { |
| <a href=#542 id=542 data-nosnippet>542</a> Definition::Function(it) => { |
| <a href=#543 id=543 data-nosnippet>543</a> it.try_to_nav(sema).map(UpmappingResult::call_site).map(|nav_target| { |
| <a href=#544 id=544 data-nosnippet>544</a> HoverAction::Reference(FilePosition { |
| <a href=#545 id=545 data-nosnippet>545</a> file_id: nav_target.file_id, |
| <a href=#546 id=546 data-nosnippet>546</a> offset: nav_target.focus_or_full_range().start(), |
| <a href=#547 id=547 data-nosnippet>547</a> }) |
| <a href=#548 id=548 data-nosnippet>548</a> }) |
| <a href=#549 id=549 data-nosnippet>549</a> } |
| <a href=#550 id=550 data-nosnippet>550</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#551 id=551 data-nosnippet>551</a> } |
| <a href=#552 id=552 data-nosnippet>552</a>} |
| <a href=#553 id=553 data-nosnippet>553</a> |
| <a href=#554 id=554 data-nosnippet>554</a><span class="kw">fn </span>runnable_action( |
| <a href=#555 id=555 data-nosnippet>555</a> sema: <span class="kw-2">&</span>hir::Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#556 id=556 data-nosnippet>556</a> def: Definition, |
| <a href=#557 id=557 data-nosnippet>557</a> file_id: FileId, |
| <a href=#558 id=558 data-nosnippet>558</a>) -> <span class="prelude-ty">Option</span><HoverAction> { |
| <a href=#559 id=559 data-nosnippet>559</a> <span class="kw">match </span>def { |
| <a href=#560 id=560 data-nosnippet>560</a> Definition::Module(it) => runnable_mod(sema, it).map(HoverAction::Runnable), |
| <a href=#561 id=561 data-nosnippet>561</a> Definition::Function(func) => { |
| <a href=#562 id=562 data-nosnippet>562</a> <span class="kw">let </span>src = func.source(sema.db)<span class="question-mark">?</span>; |
| <a href=#563 id=563 data-nosnippet>563</a> <span class="kw">if </span>src.file_id.file_id().is_none_or(|f| f.file_id(sema.db) != file_id) { |
| <a href=#564 id=564 data-nosnippet>564</a> <span class="macro">cov_mark::hit!</span>(hover_macro_generated_struct_fn_doc_comment); |
| <a href=#565 id=565 data-nosnippet>565</a> <span class="macro">cov_mark::hit!</span>(hover_macro_generated_struct_fn_doc_attr); |
| <a href=#566 id=566 data-nosnippet>566</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#567 id=567 data-nosnippet>567</a> } |
| <a href=#568 id=568 data-nosnippet>568</a> |
| <a href=#569 id=569 data-nosnippet>569</a> runnable_fn(sema, func).map(HoverAction::Runnable) |
| <a href=#570 id=570 data-nosnippet>570</a> } |
| <a href=#571 id=571 data-nosnippet>571</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#572 id=572 data-nosnippet>572</a> } |
| <a href=#573 id=573 data-nosnippet>573</a>} |
| <a href=#574 id=574 data-nosnippet>574</a> |
| <a href=#575 id=575 data-nosnippet>575</a><span class="kw">fn </span>goto_type_action_for_def( |
| <a href=#576 id=576 data-nosnippet>576</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#577 id=577 data-nosnippet>577</a> def: Definition, |
| <a href=#578 id=578 data-nosnippet>578</a> notable_traits: <span class="kw-2">&</span>[(hir::Trait, Vec<(<span class="prelude-ty">Option</span><hir::Type<<span class="lifetime">'_</span>>>, hir::Name)>)], |
| <a href=#579 id=579 data-nosnippet>579</a> subst_types: <span class="prelude-ty">Option</span><Vec<(hir::Symbol, hir::Type<<span class="lifetime">'_</span>>)>>, |
| <a href=#580 id=580 data-nosnippet>580</a> edition: Edition, |
| <a href=#581 id=581 data-nosnippet>581</a>) -> <span class="prelude-ty">Option</span><HoverAction> { |
| <a href=#582 id=582 data-nosnippet>582</a> <span class="kw">let </span>db = sema.db; |
| <a href=#583 id=583 data-nosnippet>583</a> <span class="kw">let </span><span class="kw-2">mut </span>targets: Vec<hir::ModuleDef> = Vec::new(); |
| <a href=#584 id=584 data-nosnippet>584</a> <span class="kw">let </span><span class="kw-2">mut </span>push_new_def = |item: hir::ModuleDef| { |
| <a href=#585 id=585 data-nosnippet>585</a> <span class="kw">if </span>!targets.contains(<span class="kw-2">&</span>item) { |
| <a href=#586 id=586 data-nosnippet>586</a> targets.push(item); |
| <a href=#587 id=587 data-nosnippet>587</a> } |
| <a href=#588 id=588 data-nosnippet>588</a> }; |
| <a href=#589 id=589 data-nosnippet>589</a> |
| <a href=#590 id=590 data-nosnippet>590</a> <span class="kw">for </span><span class="kw-2">&</span>(trait_, <span class="kw-2">ref </span>assocs) <span class="kw">in </span>notable_traits { |
| <a href=#591 id=591 data-nosnippet>591</a> push_new_def(trait_.into()); |
| <a href=#592 id=592 data-nosnippet>592</a> assocs.iter().filter_map(|(ty, <span class="kw">_</span>)| ty.as_ref()).for_each(|ty| { |
| <a href=#593 id=593 data-nosnippet>593</a> walk_and_push_ty(db, ty, <span class="kw-2">&mut </span>push_new_def); |
| <a href=#594 id=594 data-nosnippet>594</a> }); |
| <a href=#595 id=595 data-nosnippet>595</a> } |
| <a href=#596 id=596 data-nosnippet>596</a> |
| <a href=#597 id=597 data-nosnippet>597</a> <span class="kw">if let </span><span class="prelude-val">Ok</span>(generic_def) = GenericDef::try_from(def) { |
| <a href=#598 id=598 data-nosnippet>598</a> generic_def.type_or_const_params(db).into_iter().for_each(|it| { |
| <a href=#599 id=599 data-nosnippet>599</a> walk_and_push_ty(db, <span class="kw-2">&</span>it.ty(db), <span class="kw-2">&mut </span>push_new_def); |
| <a href=#600 id=600 data-nosnippet>600</a> }); |
| <a href=#601 id=601 data-nosnippet>601</a> } |
| <a href=#602 id=602 data-nosnippet>602</a> |
| <a href=#603 id=603 data-nosnippet>603</a> <span class="kw">let </span>ty = <span class="kw">match </span>def { |
| <a href=#604 id=604 data-nosnippet>604</a> Definition::Local(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#605 id=605 data-nosnippet>605</a> Definition::Field(field) => <span class="prelude-val">Some</span>(field.ty(db).to_type(db)), |
| <a href=#606 id=606 data-nosnippet>606</a> Definition::TupleField(field) => <span class="prelude-val">Some</span>(field.ty(db)), |
| <a href=#607 id=607 data-nosnippet>607</a> Definition::Const(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#608 id=608 data-nosnippet>608</a> Definition::Static(it) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#609 id=609 data-nosnippet>609</a> Definition::Function(func) => { |
| <a href=#610 id=610 data-nosnippet>610</a> <span class="kw">for </span>param <span class="kw">in </span>func.assoc_fn_params(db) { |
| <a href=#611 id=611 data-nosnippet>611</a> walk_and_push_ty(db, param.ty(), <span class="kw-2">&mut </span>push_new_def); |
| <a href=#612 id=612 data-nosnippet>612</a> } |
| <a href=#613 id=613 data-nosnippet>613</a> <span class="prelude-val">Some</span>(func.ret_type(db)) |
| <a href=#614 id=614 data-nosnippet>614</a> } |
| <a href=#615 id=615 data-nosnippet>615</a> Definition::GenericParam(hir::GenericParam::ConstParam(it)) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#616 id=616 data-nosnippet>616</a> Definition::GenericParam(hir::GenericParam::TypeParam(it)) => <span class="prelude-val">Some</span>(it.ty(db)), |
| <a href=#617 id=617 data-nosnippet>617</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#618 id=618 data-nosnippet>618</a> }; |
| <a href=#619 id=619 data-nosnippet>619</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(ty) = ty { |
| <a href=#620 id=620 data-nosnippet>620</a> walk_and_push_ty(db, <span class="kw-2">&</span>ty, <span class="kw-2">&mut </span>push_new_def); |
| <a href=#621 id=621 data-nosnippet>621</a> } |
| <a href=#622 id=622 data-nosnippet>622</a> |
| <a href=#623 id=623 data-nosnippet>623</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(subst_types) = subst_types { |
| <a href=#624 id=624 data-nosnippet>624</a> <span class="kw">for </span>(<span class="kw">_</span>, ty) <span class="kw">in </span>subst_types { |
| <a href=#625 id=625 data-nosnippet>625</a> walk_and_push_ty(db, <span class="kw-2">&</span>ty, <span class="kw-2">&mut </span>push_new_def); |
| <a href=#626 id=626 data-nosnippet>626</a> } |
| <a href=#627 id=627 data-nosnippet>627</a> } |
| <a href=#628 id=628 data-nosnippet>628</a> |
| <a href=#629 id=629 data-nosnippet>629</a> HoverAction::goto_type_from_targets(sema, targets, edition) |
| <a href=#630 id=630 data-nosnippet>630</a>} |
| <a href=#631 id=631 data-nosnippet>631</a> |
| <a href=#632 id=632 data-nosnippet>632</a><span class="kw">fn </span>walk_and_push_ty( |
| <a href=#633 id=633 data-nosnippet>633</a> db: <span class="kw-2">&</span>RootDatabase, |
| <a href=#634 id=634 data-nosnippet>634</a> ty: <span class="kw-2">&</span>hir::Type<<span class="lifetime">'_</span>>, |
| <a href=#635 id=635 data-nosnippet>635</a> push_new_def: <span class="kw-2">&mut </span><span class="kw">dyn </span>FnMut(hir::ModuleDef), |
| <a href=#636 id=636 data-nosnippet>636</a>) { |
| <a href=#637 id=637 data-nosnippet>637</a> ty.walk(db, |t| { |
| <a href=#638 id=638 data-nosnippet>638</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(adt) = t.as_adt() { |
| <a href=#639 id=639 data-nosnippet>639</a> push_new_def(adt.into()); |
| <a href=#640 id=640 data-nosnippet>640</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(trait_) = t.as_dyn_trait() { |
| <a href=#641 id=641 data-nosnippet>641</a> push_new_def(trait_.into()); |
| <a href=#642 id=642 data-nosnippet>642</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(traits) = t.as_impl_traits(db) { |
| <a href=#643 id=643 data-nosnippet>643</a> traits.for_each(|it| push_new_def(it.into())); |
| <a href=#644 id=644 data-nosnippet>644</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(trait_) = t.as_associated_type_parent_trait(db) { |
| <a href=#645 id=645 data-nosnippet>645</a> push_new_def(trait_.into()); |
| <a href=#646 id=646 data-nosnippet>646</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(tp) = t.as_type_param(db) { |
| <a href=#647 id=647 data-nosnippet>647</a> <span class="kw">let </span>sized_trait = LangItem::Sized.resolve_trait(db, t.krate(db).into()); |
| <a href=#648 id=648 data-nosnippet>648</a> tp.trait_bounds(db) |
| <a href=#649 id=649 data-nosnippet>649</a> .into_iter() |
| <a href=#650 id=650 data-nosnippet>650</a> .filter(|<span class="kw-2">&</span>it| <span class="prelude-val">Some</span>(it.into()) != sized_trait) |
| <a href=#651 id=651 data-nosnippet>651</a> .for_each(|it| push_new_def(it.into())); |
| <a href=#652 id=652 data-nosnippet>652</a> } |
| <a href=#653 id=653 data-nosnippet>653</a> }); |
| <a href=#654 id=654 data-nosnippet>654</a>} |
| <a href=#655 id=655 data-nosnippet>655</a> |
| <a href=#656 id=656 data-nosnippet>656</a><span class="kw">fn </span>dedupe_or_merge_hover_actions(actions: Vec<HoverAction>) -> Vec<HoverAction> { |
| <a href=#657 id=657 data-nosnippet>657</a> <span class="kw">let </span><span class="kw-2">mut </span>deduped_actions = Vec::with_capacity(actions.len()); |
| <a href=#658 id=658 data-nosnippet>658</a> <span class="kw">let </span><span class="kw-2">mut </span>go_to_type_targets = FxIndexSet::default(); |
| <a href=#659 id=659 data-nosnippet>659</a> |
| <a href=#660 id=660 data-nosnippet>660</a> <span class="kw">let </span><span class="kw-2">mut </span>seen_implementation = <span class="bool-val">false</span>; |
| <a href=#661 id=661 data-nosnippet>661</a> <span class="kw">let </span><span class="kw-2">mut </span>seen_reference = <span class="bool-val">false</span>; |
| <a href=#662 id=662 data-nosnippet>662</a> <span class="kw">let </span><span class="kw-2">mut </span>seen_runnable = <span class="bool-val">false</span>; |
| <a href=#663 id=663 data-nosnippet>663</a> <span class="kw">for </span>action <span class="kw">in </span>actions { |
| <a href=#664 id=664 data-nosnippet>664</a> <span class="kw">match </span>action { |
| <a href=#665 id=665 data-nosnippet>665</a> HoverAction::GoToType(targets) => { |
| <a href=#666 id=666 data-nosnippet>666</a> go_to_type_targets.extend(targets); |
| <a href=#667 id=667 data-nosnippet>667</a> } |
| <a href=#668 id=668 data-nosnippet>668</a> HoverAction::Implementation(..) => { |
| <a href=#669 id=669 data-nosnippet>669</a> <span class="kw">if </span>!seen_implementation { |
| <a href=#670 id=670 data-nosnippet>670</a> seen_implementation = <span class="bool-val">true</span>; |
| <a href=#671 id=671 data-nosnippet>671</a> deduped_actions.push(action); |
| <a href=#672 id=672 data-nosnippet>672</a> } |
| <a href=#673 id=673 data-nosnippet>673</a> } |
| <a href=#674 id=674 data-nosnippet>674</a> HoverAction::Reference(..) => { |
| <a href=#675 id=675 data-nosnippet>675</a> <span class="kw">if </span>!seen_reference { |
| <a href=#676 id=676 data-nosnippet>676</a> seen_reference = <span class="bool-val">true</span>; |
| <a href=#677 id=677 data-nosnippet>677</a> deduped_actions.push(action); |
| <a href=#678 id=678 data-nosnippet>678</a> } |
| <a href=#679 id=679 data-nosnippet>679</a> } |
| <a href=#680 id=680 data-nosnippet>680</a> HoverAction::Runnable(..) => { |
| <a href=#681 id=681 data-nosnippet>681</a> <span class="kw">if </span>!seen_runnable { |
| <a href=#682 id=682 data-nosnippet>682</a> seen_runnable = <span class="bool-val">true</span>; |
| <a href=#683 id=683 data-nosnippet>683</a> deduped_actions.push(action); |
| <a href=#684 id=684 data-nosnippet>684</a> } |
| <a href=#685 id=685 data-nosnippet>685</a> } |
| <a href=#686 id=686 data-nosnippet>686</a> }; |
| <a href=#687 id=687 data-nosnippet>687</a> } |
| <a href=#688 id=688 data-nosnippet>688</a> |
| <a href=#689 id=689 data-nosnippet>689</a> <span class="kw">if </span>!go_to_type_targets.is_empty() { |
| <a href=#690 id=690 data-nosnippet>690</a> deduped_actions.push(HoverAction::GoToType( |
| <a href=#691 id=691 data-nosnippet>691</a> go_to_type_targets.into_iter().sorted_by(|a, b| a.mod_path.cmp(<span class="kw-2">&</span>b.mod_path)).collect(), |
| <a href=#692 id=692 data-nosnippet>692</a> )); |
| <a href=#693 id=693 data-nosnippet>693</a> } |
| <a href=#694 id=694 data-nosnippet>694</a> |
| <a href=#695 id=695 data-nosnippet>695</a> deduped_actions |
| <a href=#696 id=696 data-nosnippet>696</a>}</code></pre></div></section></main></body></html> |
