| <!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/syntax_highlighting.rs`."><title>syntax_highlighting.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>syntax_highlighting.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">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>tags; |
| <a href=#2 id=2 data-nosnippet>2</a> |
| <a href=#3 id=3 data-nosnippet>3</a><span class="kw">mod </span>highlights; |
| <a href=#4 id=4 data-nosnippet>4</a> |
| <a href=#5 id=5 data-nosnippet>5</a><span class="kw">mod </span>escape; |
| <a href=#6 id=6 data-nosnippet>6</a><span class="kw">mod </span>format; |
| <a href=#7 id=7 data-nosnippet>7</a><span class="kw">mod </span>highlight; |
| <a href=#8 id=8 data-nosnippet>8</a><span class="kw">mod </span>inject; |
| <a href=#9 id=9 data-nosnippet>9</a> |
| <a href=#10 id=10 data-nosnippet>10</a><span class="kw">mod </span>html; |
| <a href=#11 id=11 data-nosnippet>11</a><span class="attr">#[cfg(test)] |
| <a href=#12 id=12 data-nosnippet>12</a></span><span class="kw">mod </span>tests; |
| <a href=#13 id=13 data-nosnippet>13</a> |
| <a href=#14 id=14 data-nosnippet>14</a><span class="kw">use </span>std::ops::ControlFlow; |
| <a href=#15 id=15 data-nosnippet>15</a> |
| <a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>either::Either; |
| <a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>hir::{DefWithBody, EditionedFileId, InFile, InRealFile, MacroKind, Semantics}; |
| <a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>ide_db::{FxHashMap, FxHashSet, MiniCore, Ranker, RootDatabase, SymbolKind}; |
| <a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>syntax::{ |
| <a href=#20 id=20 data-nosnippet>20</a> AstNode, AstToken, NodeOrToken, |
| <a href=#21 id=21 data-nosnippet>21</a> SyntaxKind::<span class="kw-2">*</span>, |
| <a href=#22 id=22 data-nosnippet>22</a> SyntaxNode, SyntaxToken, T, TextRange, WalkEvent, |
| <a href=#23 id=23 data-nosnippet>23</a> ast::{<span class="self">self</span>, IsString}, |
| <a href=#24 id=24 data-nosnippet>24</a>}; |
| <a href=#25 id=25 data-nosnippet>25</a> |
| <a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>crate::{ |
| <a href=#27 id=27 data-nosnippet>27</a> FileId, HlMod, HlOperator, HlPunct, HlTag, |
| <a href=#28 id=28 data-nosnippet>28</a> syntax_highlighting::{ |
| <a href=#29 id=29 data-nosnippet>29</a> escape::{highlight_escape_byte, highlight_escape_char, highlight_escape_string}, |
| <a href=#30 id=30 data-nosnippet>30</a> format::highlight_format_string, |
| <a href=#31 id=31 data-nosnippet>31</a> highlights::Highlights, |
| <a href=#32 id=32 data-nosnippet>32</a> tags::Highlight, |
| <a href=#33 id=33 data-nosnippet>33</a> }, |
| <a href=#34 id=34 data-nosnippet>34</a>}; |
| <a href=#35 id=35 data-nosnippet>35</a> |
| <a href=#36 id=36 data-nosnippet>36</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>html::highlight_as_html; |
| <a href=#37 id=37 data-nosnippet>37</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>html::highlight_as_html_with_config; |
| <a href=#38 id=38 data-nosnippet>38</a> |
| <a href=#39 id=39 data-nosnippet>39</a><span class="attr">#[derive(Debug, Clone, Copy)] |
| <a href=#40 id=40 data-nosnippet>40</a></span><span class="kw">pub struct </span>HlRange { |
| <a href=#41 id=41 data-nosnippet>41</a> <span class="kw">pub </span>range: TextRange, |
| <a href=#42 id=42 data-nosnippet>42</a> <span class="kw">pub </span>highlight: Highlight, |
| <a href=#43 id=43 data-nosnippet>43</a> <span class="kw">pub </span>binding_hash: <span class="prelude-ty">Option</span><u64>, |
| <a href=#44 id=44 data-nosnippet>44</a>} |
| <a href=#45 id=45 data-nosnippet>45</a> |
| <a href=#46 id=46 data-nosnippet>46</a><span class="attr">#[derive(Copy, Clone, Debug)] |
| <a href=#47 id=47 data-nosnippet>47</a></span><span class="kw">pub struct </span>HighlightConfig<<span class="lifetime">'a</span>> { |
| <a href=#48 id=48 data-nosnippet>48</a> <span class="doccomment">/// Whether to highlight strings |
| <a href=#49 id=49 data-nosnippet>49</a> </span><span class="kw">pub </span>strings: bool, |
| <a href=#50 id=50 data-nosnippet>50</a> <span class="doccomment">/// Whether to highlight comments |
| <a href=#51 id=51 data-nosnippet>51</a> </span><span class="kw">pub </span>comments: bool, |
| <a href=#52 id=52 data-nosnippet>52</a> <span class="doccomment">/// Whether to highlight punctuation |
| <a href=#53 id=53 data-nosnippet>53</a> </span><span class="kw">pub </span>punctuation: bool, |
| <a href=#54 id=54 data-nosnippet>54</a> <span class="doccomment">/// Whether to specialize punctuation highlights |
| <a href=#55 id=55 data-nosnippet>55</a> </span><span class="kw">pub </span>specialize_punctuation: bool, |
| <a href=#56 id=56 data-nosnippet>56</a> <span class="doccomment">/// Whether to highlight operator |
| <a href=#57 id=57 data-nosnippet>57</a> </span><span class="kw">pub </span>operator: bool, |
| <a href=#58 id=58 data-nosnippet>58</a> <span class="doccomment">/// Whether to specialize operator highlights |
| <a href=#59 id=59 data-nosnippet>59</a> </span><span class="kw">pub </span>specialize_operator: bool, |
| <a href=#60 id=60 data-nosnippet>60</a> <span class="doccomment">/// Whether to inject highlights into doc comments |
| <a href=#61 id=61 data-nosnippet>61</a> </span><span class="kw">pub </span>inject_doc_comment: bool, |
| <a href=#62 id=62 data-nosnippet>62</a> <span class="doccomment">/// Whether to highlight the macro call bang |
| <a href=#63 id=63 data-nosnippet>63</a> </span><span class="kw">pub </span>macro_bang: bool, |
| <a href=#64 id=64 data-nosnippet>64</a> <span class="doccomment">/// Whether to highlight unresolved things be their syntax |
| <a href=#65 id=65 data-nosnippet>65</a> </span><span class="kw">pub </span>syntactic_name_ref_highlighting: bool, |
| <a href=#66 id=66 data-nosnippet>66</a> <span class="kw">pub </span>minicore: MiniCore<<span class="lifetime">'a</span>>, |
| <a href=#67 id=67 data-nosnippet>67</a>} |
| <a href=#68 id=68 data-nosnippet>68</a> |
| <a href=#69 id=69 data-nosnippet>69</a><span class="comment">// Feature: Semantic Syntax Highlighting |
| <a href=#70 id=70 data-nosnippet>70</a>// |
| <a href=#71 id=71 data-nosnippet>71</a>// rust-analyzer highlights the code semantically. |
| <a href=#72 id=72 data-nosnippet>72</a>// For example, `Bar` in `foo::Bar` might be colored differently depending on whether `Bar` is an enum or a trait. |
| <a href=#73 id=73 data-nosnippet>73</a>// rust-analyzer does not specify colors directly, instead it assigns a tag (like `struct`) and a set of modifiers (like `declaration`) to each token. |
| <a href=#74 id=74 data-nosnippet>74</a>// It's up to the client to map those to specific colors. |
| <a href=#75 id=75 data-nosnippet>75</a>// |
| <a href=#76 id=76 data-nosnippet>76</a>// The general rule is that a reference to an entity gets colored the same way as the entity itself. |
| <a href=#77 id=77 data-nosnippet>77</a>// We also give special modifier for `mut` and `&mut` local variables. |
| <a href=#78 id=78 data-nosnippet>78</a>// |
| <a href=#79 id=79 data-nosnippet>79</a>// |
| <a href=#80 id=80 data-nosnippet>80</a>// #### Token Tags |
| <a href=#81 id=81 data-nosnippet>81</a>// |
| <a href=#82 id=82 data-nosnippet>82</a>// Rust-analyzer currently emits the following token tags: |
| <a href=#83 id=83 data-nosnippet>83</a>// |
| <a href=#84 id=84 data-nosnippet>84</a>// - For items: |
| <a href=#85 id=85 data-nosnippet>85</a>// |
| <a href=#86 id=86 data-nosnippet>86</a>// | | | |
| <a href=#87 id=87 data-nosnippet>87</a>// |-----------|--------------------------------| |
| <a href=#88 id=88 data-nosnippet>88</a>// | attribute | Emitted for attribute macros. | |
| <a href=#89 id=89 data-nosnippet>89</a>// |enum| Emitted for enums. | |
| <a href=#90 id=90 data-nosnippet>90</a>// |function| Emitted for free-standing functions. | |
| <a href=#91 id=91 data-nosnippet>91</a>// |derive| Emitted for derive macros. | |
| <a href=#92 id=92 data-nosnippet>92</a>// |macro| Emitted for function-like macros. | |
| <a href=#93 id=93 data-nosnippet>93</a>// |method| Emitted for associated functions, also knowns as methods. | |
| <a href=#94 id=94 data-nosnippet>94</a>// |namespace| Emitted for modules. | |
| <a href=#95 id=95 data-nosnippet>95</a>// |struct| Emitted for structs.| |
| <a href=#96 id=96 data-nosnippet>96</a>// |trait| Emitted for traits.| |
| <a href=#97 id=97 data-nosnippet>97</a>// |typeAlias| Emitted for type aliases and `Self` in `impl`s.| |
| <a href=#98 id=98 data-nosnippet>98</a>// |union| Emitted for unions.| |
| <a href=#99 id=99 data-nosnippet>99</a>// |
| <a href=#100 id=100 data-nosnippet>100</a>// - For literals: |
| <a href=#101 id=101 data-nosnippet>101</a>// |
| <a href=#102 id=102 data-nosnippet>102</a>// | | | |
| <a href=#103 id=103 data-nosnippet>103</a>// |-----------|--------------------------------| |
| <a href=#104 id=104 data-nosnippet>104</a>// | boolean| Emitted for the boolean literals `true` and `false`.| |
| <a href=#105 id=105 data-nosnippet>105</a>// | character| Emitted for character literals.| |
| <a href=#106 id=106 data-nosnippet>106</a>// | number| Emitted for numeric literals.| |
| <a href=#107 id=107 data-nosnippet>107</a>// | string| Emitted for string literals.| |
| <a href=#108 id=108 data-nosnippet>108</a>// | escapeSequence| Emitted for escaped sequences inside strings like `\n`.| |
| <a href=#109 id=109 data-nosnippet>109</a>// | formatSpecifier| Emitted for format specifiers `{:?}` in `format!`-like macros.| |
| <a href=#110 id=110 data-nosnippet>110</a>// |
| <a href=#111 id=111 data-nosnippet>111</a>// - For operators: |
| <a href=#112 id=112 data-nosnippet>112</a>// |
| <a href=#113 id=113 data-nosnippet>113</a>// | | | |
| <a href=#114 id=114 data-nosnippet>114</a>// |-----------|--------------------------------| |
| <a href=#115 id=115 data-nosnippet>115</a>// |operator| Emitted for general operators.| |
| <a href=#116 id=116 data-nosnippet>116</a>// |arithmetic| Emitted for the arithmetic operators `+`, `-`, `*`, `/`, `+=`, `-=`, `*=`, `/=`.| |
| <a href=#117 id=117 data-nosnippet>117</a>// |bitwise| Emitted for the bitwise operators `\|`, `&`, `!`, `^`, `\|=`, `&=`, `^=`.| |
| <a href=#118 id=118 data-nosnippet>118</a>// |comparison| Emitted for the comparison oerators `>`, `<`, `==`, `>=`, `<=`, `!=`.| |
| <a href=#119 id=119 data-nosnippet>119</a>// |logical| Emitted for the logical operators `\|\|`, `&&`, `!`.| |
| <a href=#120 id=120 data-nosnippet>120</a>// |
| <a href=#121 id=121 data-nosnippet>121</a>// - For punctuation: |
| <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>// |-----------|--------------------------------| |
| <a href=#125 id=125 data-nosnippet>125</a>// |punctuation| Emitted for general punctuation.| |
| <a href=#126 id=126 data-nosnippet>126</a>// |attributeBracket| Emitted for attribute invocation brackets, that is the `#[` and `]` tokens.| |
| <a href=#127 id=127 data-nosnippet>127</a>// |angle| Emitted for `<>` angle brackets.| |
| <a href=#128 id=128 data-nosnippet>128</a>// |brace| Emitted for `{}` braces.| |
| <a href=#129 id=129 data-nosnippet>129</a>// |bracket| Emitted for `[]` brackets.| |
| <a href=#130 id=130 data-nosnippet>130</a>// |parenthesis| Emitted for `()` parentheses.| |
| <a href=#131 id=131 data-nosnippet>131</a>// |colon| Emitted for the `:` token.| |
| <a href=#132 id=132 data-nosnippet>132</a>// |comma| Emitted for the `,` token.| |
| <a href=#133 id=133 data-nosnippet>133</a>// |dot| Emitted for the `.` token.| |
| <a href=#134 id=134 data-nosnippet>134</a>// |semi| Emitted for the `;` token.| |
| <a href=#135 id=135 data-nosnippet>135</a>// |macroBang| Emitted for the `!` token in macro calls.| |
| <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>// |
| <a href=#139 id=139 data-nosnippet>139</a>// | | | |
| <a href=#140 id=140 data-nosnippet>140</a>// |-----------|--------------------------------| |
| <a href=#141 id=141 data-nosnippet>141</a>// |builtinAttribute| Emitted for names to builtin attributes in attribute path, the `repr` in `#[repr(u8)]` for example.| |
| <a href=#142 id=142 data-nosnippet>142</a>// |builtinType| Emitted for builtin types like `u32`, `str` and `f32`.| |
| <a href=#143 id=143 data-nosnippet>143</a>// |comment| Emitted for comments.| |
| <a href=#144 id=144 data-nosnippet>144</a>// |constParameter| Emitted for const parameters.| |
| <a href=#145 id=145 data-nosnippet>145</a>// |deriveHelper| Emitted for derive helper attributes.| |
| <a href=#146 id=146 data-nosnippet>146</a>// |enumMember| Emitted for enum variants.| |
| <a href=#147 id=147 data-nosnippet>147</a>// |generic| Emitted for generic tokens that have no mapping.| |
| <a href=#148 id=148 data-nosnippet>148</a>// |keyword| Emitted for keywords.| |
| <a href=#149 id=149 data-nosnippet>149</a>// |label| Emitted for labels.| |
| <a href=#150 id=150 data-nosnippet>150</a>// |lifetime| Emitted for lifetimes.| |
| <a href=#151 id=151 data-nosnippet>151</a>// |parameter| Emitted for non-self function parameters.| |
| <a href=#152 id=152 data-nosnippet>152</a>// |property| Emitted for struct and union fields.| |
| <a href=#153 id=153 data-nosnippet>153</a>// |selfKeyword| Emitted for the self function parameter and self path-specifier.| |
| <a href=#154 id=154 data-nosnippet>154</a>// |selfTypeKeyword| Emitted for the Self type parameter.| |
| <a href=#155 id=155 data-nosnippet>155</a>// |toolModule| Emitted for tool modules.| |
| <a href=#156 id=156 data-nosnippet>156</a>// |typeParameter| Emitted for type parameters.| |
| <a href=#157 id=157 data-nosnippet>157</a>// |unresolvedReference| Emitted for unresolved references, names that rust-analyzer can't find the definition of.| |
| <a href=#158 id=158 data-nosnippet>158</a>// |variable| Emitted for locals, constants and statics.| |
| <a href=#159 id=159 data-nosnippet>159</a>// |
| <a href=#160 id=160 data-nosnippet>160</a>// |
| <a href=#161 id=161 data-nosnippet>161</a>// #### Token Modifiers |
| <a href=#162 id=162 data-nosnippet>162</a>// |
| <a href=#163 id=163 data-nosnippet>163</a>// Token modifiers allow to style some elements in the source code more precisely. |
| <a href=#164 id=164 data-nosnippet>164</a>// |
| <a href=#165 id=165 data-nosnippet>165</a>// Rust-analyzer currently emits the following token modifiers: |
| <a href=#166 id=166 data-nosnippet>166</a>// |
| <a href=#167 id=167 data-nosnippet>167</a>// | | | |
| <a href=#168 id=168 data-nosnippet>168</a>// |-----------|--------------------------------| |
| <a href=#169 id=169 data-nosnippet>169</a>// |async| Emitted for async functions and the `async` and `await` keywords.| |
| <a href=#170 id=170 data-nosnippet>170</a>// |attribute| Emitted for tokens inside attributes.| |
| <a href=#171 id=171 data-nosnippet>171</a>// |callable| Emitted for locals whose types implements one of the `Fn*` traits.| |
| <a href=#172 id=172 data-nosnippet>172</a>// |constant| Emitted for const.| |
| <a href=#173 id=173 data-nosnippet>173</a>// |consuming| Emitted for locals that are being consumed when use in a function call.| |
| <a href=#174 id=174 data-nosnippet>174</a>// |controlFlow| Emitted for control-flow related tokens, this includes th `?` operator.| |
| <a href=#175 id=175 data-nosnippet>175</a>// |crateRoot| Emitted for crate names, like `serde` and `crate`.| |
| <a href=#176 id=176 data-nosnippet>176</a>// |declaration| Emitted for names of definitions, like `foo` in `fn foo(){}`.| |
| <a href=#177 id=177 data-nosnippet>177</a>// |defaultLibrary| Emitted for items from built-in crates (std, core, alloc, test and proc_macro).| |
| <a href=#178 id=178 data-nosnippet>178</a>// |documentation| Emitted for documentation comment.| |
| <a href=#179 id=179 data-nosnippet>179</a>// |injected| Emitted for doc-string injected highlighting like rust source blocks in documentation.| |
| <a href=#180 id=180 data-nosnippet>180</a>// |intraDocLink| Emitted for intra doc links in doc-string.| |
| <a href=#181 id=181 data-nosnippet>181</a>// |library| Emitted for items that are defined outside of the current crate.| |
| <a href=#182 id=182 data-nosnippet>182</a>// |macro| Emitted for tokens inside macro call.| |
| <a href=#183 id=183 data-nosnippet>183</a>// |mutable| Emitted for mutable locals and statics as well as functions taking `&mut self`.| |
| <a href=#184 id=184 data-nosnippet>184</a>// |public| Emitted for items that are from the current crate and are `pub`.| |
| <a href=#185 id=185 data-nosnippet>185</a>// |reference| Emitted for locals behind a reference and functions taking `self` by reference.| |
| <a href=#186 id=186 data-nosnippet>186</a>// |static| Emitted for "static" functions, also known as functions that do not take a `self` param, as well as statics and consts.| |
| <a href=#187 id=187 data-nosnippet>187</a>// |trait| Emitted for associated trait item.| |
| <a href=#188 id=188 data-nosnippet>188</a>// |unsafe| Emitted for unsafe operations, like unsafe function calls, as well as the `unsafe` token.| |
| <a href=#189 id=189 data-nosnippet>189</a>// |
| <a href=#190 id=190 data-nosnippet>190</a>//  |
| <a href=#191 id=191 data-nosnippet>191</a>//  |
| <a href=#192 id=192 data-nosnippet>192</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>highlight( |
| <a href=#193 id=193 data-nosnippet>193</a> db: <span class="kw-2">&</span>RootDatabase, |
| <a href=#194 id=194 data-nosnippet>194</a> config: <span class="kw-2">&</span>HighlightConfig<<span class="lifetime">'_</span>>, |
| <a href=#195 id=195 data-nosnippet>195</a> file_id: FileId, |
| <a href=#196 id=196 data-nosnippet>196</a> range_to_highlight: <span class="prelude-ty">Option</span><TextRange>, |
| <a href=#197 id=197 data-nosnippet>197</a>) -> Vec<HlRange> { |
| <a href=#198 id=198 data-nosnippet>198</a> <span class="kw">let </span>_p = <span class="macro">tracing::info_span!</span>(<span class="string">"highlight"</span>).entered(); |
| <a href=#199 id=199 data-nosnippet>199</a> <span class="kw">let </span>sema = Semantics::new(db); |
| <a href=#200 id=200 data-nosnippet>200</a> <span class="kw">let </span>file_id = sema.attach_first_edition(file_id); |
| <a href=#201 id=201 data-nosnippet>201</a> |
| <a href=#202 id=202 data-nosnippet>202</a> <span class="comment">// Determine the root based on the given range. |
| <a href=#203 id=203 data-nosnippet>203</a> </span><span class="kw">let </span>(root, range_to_highlight) = { |
| <a href=#204 id=204 data-nosnippet>204</a> <span class="kw">let </span>file = sema.parse(file_id); |
| <a href=#205 id=205 data-nosnippet>205</a> <span class="kw">let </span>source_file = file.syntax(); |
| <a href=#206 id=206 data-nosnippet>206</a> <span class="kw">match </span>range_to_highlight { |
| <a href=#207 id=207 data-nosnippet>207</a> <span class="prelude-val">Some</span>(range) => { |
| <a href=#208 id=208 data-nosnippet>208</a> <span class="kw">let </span>node = <span class="kw">match </span>source_file.covering_element(range) { |
| <a href=#209 id=209 data-nosnippet>209</a> NodeOrToken::Node(it) => it, |
| <a href=#210 id=210 data-nosnippet>210</a> NodeOrToken::Token(it) => it.parent().unwrap_or_else(|| source_file.clone()), |
| <a href=#211 id=211 data-nosnippet>211</a> }; |
| <a href=#212 id=212 data-nosnippet>212</a> (node, range) |
| <a href=#213 id=213 data-nosnippet>213</a> } |
| <a href=#214 id=214 data-nosnippet>214</a> <span class="prelude-val">None </span>=> (source_file.clone(), source_file.text_range()), |
| <a href=#215 id=215 data-nosnippet>215</a> } |
| <a href=#216 id=216 data-nosnippet>216</a> }; |
| <a href=#217 id=217 data-nosnippet>217</a> |
| <a href=#218 id=218 data-nosnippet>218</a> <span class="kw">let </span><span class="kw-2">mut </span>hl = highlights::Highlights::new(root.text_range()); |
| <a href=#219 id=219 data-nosnippet>219</a> <span class="kw">let </span>krate = sema.scope(<span class="kw-2">&</span>root).map(|it| it.krate()); |
| <a href=#220 id=220 data-nosnippet>220</a> traverse(<span class="kw-2">&mut </span>hl, <span class="kw-2">&</span>sema, config, InRealFile::new(file_id, <span class="kw-2">&</span>root), krate, range_to_highlight); |
| <a href=#221 id=221 data-nosnippet>221</a> hl.to_vec() |
| <a href=#222 id=222 data-nosnippet>222</a>} |
| <a href=#223 id=223 data-nosnippet>223</a> |
| <a href=#224 id=224 data-nosnippet>224</a><span class="kw">fn </span>traverse( |
| <a href=#225 id=225 data-nosnippet>225</a> hl: <span class="kw-2">&mut </span>Highlights, |
| <a href=#226 id=226 data-nosnippet>226</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#227 id=227 data-nosnippet>227</a> config: <span class="kw-2">&</span>HighlightConfig<<span class="lifetime">'_</span>>, |
| <a href=#228 id=228 data-nosnippet>228</a> InRealFile { file_id, value: root }: InRealFile<<span class="kw-2">&</span>SyntaxNode>, |
| <a href=#229 id=229 data-nosnippet>229</a> krate: <span class="prelude-ty">Option</span><hir::Crate>, |
| <a href=#230 id=230 data-nosnippet>230</a> range_to_highlight: TextRange, |
| <a href=#231 id=231 data-nosnippet>231</a>) { |
| <a href=#232 id=232 data-nosnippet>232</a> <span class="kw">let </span>is_unlinked = sema.file_to_module_def(file_id.file_id(sema.db)).is_none(); |
| <a href=#233 id=233 data-nosnippet>233</a> |
| <a href=#234 id=234 data-nosnippet>234</a> <span class="kw">enum </span>AttrOrDerive { |
| <a href=#235 id=235 data-nosnippet>235</a> Attr(ast::Item), |
| <a href=#236 id=236 data-nosnippet>236</a> Derive(ast::Item), |
| <a href=#237 id=237 data-nosnippet>237</a> } |
| <a href=#238 id=238 data-nosnippet>238</a> |
| <a href=#239 id=239 data-nosnippet>239</a> <span class="kw">impl </span>AttrOrDerive { |
| <a href=#240 id=240 data-nosnippet>240</a> <span class="kw">fn </span>item(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>ast::Item { |
| <a href=#241 id=241 data-nosnippet>241</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#242 id=242 data-nosnippet>242</a> AttrOrDerive::Attr(item) | AttrOrDerive::Derive(item) => item, |
| <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> } |
| <a href=#246 id=246 data-nosnippet>246</a> |
| <a href=#247 id=247 data-nosnippet>247</a> <span class="kw">let </span>empty = FxHashSet::default(); |
| <a href=#248 id=248 data-nosnippet>248</a> |
| <a href=#249 id=249 data-nosnippet>249</a> <span class="comment">// FIXME: accommodate range highlighting |
| <a href=#250 id=250 data-nosnippet>250</a> </span><span class="kw">let </span><span class="kw-2">mut </span>tt_level = <span class="number">0</span>; |
| <a href=#251 id=251 data-nosnippet>251</a> <span class="comment">// FIXME: accommodate range highlighting |
| <a href=#252 id=252 data-nosnippet>252</a> </span><span class="kw">let </span><span class="kw-2">mut </span>attr_or_derive_item = <span class="prelude-val">None</span>; |
| <a href=#253 id=253 data-nosnippet>253</a> |
| <a href=#254 id=254 data-nosnippet>254</a> <span class="comment">// FIXME: these are not perfectly accurate, we determine them by the real file's syntax tree |
| <a href=#255 id=255 data-nosnippet>255</a> // an attribute nested in a macro call will not emit `inside_attribute` |
| <a href=#256 id=256 data-nosnippet>256</a> </span><span class="kw">let </span><span class="kw-2">mut </span>inside_attribute = <span class="bool-val">false</span>; |
| <a href=#257 id=257 data-nosnippet>257</a> |
| <a href=#258 id=258 data-nosnippet>258</a> <span class="comment">// FIXME: accommodate range highlighting |
| <a href=#259 id=259 data-nosnippet>259</a> </span><span class="kw">let </span><span class="kw-2">mut </span>body_stack: Vec<<span class="prelude-ty">Option</span><DefWithBody>> = <span class="macro">vec!</span>[]; |
| <a href=#260 id=260 data-nosnippet>260</a> <span class="kw">let </span><span class="kw-2">mut </span>per_body_cache: FxHashMap<DefWithBody, FxHashSet<<span class="kw">_</span>>> = FxHashMap::default(); |
| <a href=#261 id=261 data-nosnippet>261</a> |
| <a href=#262 id=262 data-nosnippet>262</a> <span class="comment">// Walk all nodes, keeping track of whether we are inside a macro or not. |
| <a href=#263 id=263 data-nosnippet>263</a> // If in macro, expand it first and highlight the expanded code. |
| <a href=#264 id=264 data-nosnippet>264</a> </span><span class="kw">let </span><span class="kw-2">mut </span>preorder = root.preorder_with_tokens(); |
| <a href=#265 id=265 data-nosnippet>265</a> <span class="kw">while let </span><span class="prelude-val">Some</span>(event) = preorder.next() { |
| <a href=#266 id=266 data-nosnippet>266</a> <span class="kw">use </span>WalkEvent::{Enter, Leave}; |
| <a href=#267 id=267 data-nosnippet>267</a> |
| <a href=#268 id=268 data-nosnippet>268</a> <span class="kw">let </span>range = <span class="kw">match </span><span class="kw-2">&</span>event { |
| <a href=#269 id=269 data-nosnippet>269</a> Enter(it) | Leave(it) => it.text_range(), |
| <a href=#270 id=270 data-nosnippet>270</a> }; |
| <a href=#271 id=271 data-nosnippet>271</a> |
| <a href=#272 id=272 data-nosnippet>272</a> <span class="comment">// Element outside of the viewport, no need to highlight |
| <a href=#273 id=273 data-nosnippet>273</a> </span><span class="kw">if </span>range_to_highlight.intersect(range).is_none() { |
| <a href=#274 id=274 data-nosnippet>274</a> <span class="kw">continue</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> <span class="kw">match </span>event.clone() { |
| <a href=#278 id=278 data-nosnippet>278</a> Enter(NodeOrToken::Node(node)) <span class="kw">if </span>ast::TokenTree::can_cast(node.kind()) => { |
| <a href=#279 id=279 data-nosnippet>279</a> tt_level += <span class="number">1</span>; |
| <a href=#280 id=280 data-nosnippet>280</a> } |
| <a href=#281 id=281 data-nosnippet>281</a> Leave(NodeOrToken::Node(node)) <span class="kw">if </span>ast::TokenTree::can_cast(node.kind()) => { |
| <a href=#282 id=282 data-nosnippet>282</a> tt_level -= <span class="number">1</span>; |
| <a href=#283 id=283 data-nosnippet>283</a> } |
| <a href=#284 id=284 data-nosnippet>284</a> Enter(NodeOrToken::Node(node)) <span class="kw">if </span>ast::Attr::can_cast(node.kind()) => { |
| <a href=#285 id=285 data-nosnippet>285</a> inside_attribute = <span class="bool-val">true |
| <a href=#286 id=286 data-nosnippet>286</a> </span>} |
| <a href=#287 id=287 data-nosnippet>287</a> Leave(NodeOrToken::Node(node)) <span class="kw">if </span>ast::Attr::can_cast(node.kind()) => { |
| <a href=#288 id=288 data-nosnippet>288</a> inside_attribute = <span class="bool-val">false |
| <a href=#289 id=289 data-nosnippet>289</a> </span>} |
| <a href=#290 id=290 data-nosnippet>290</a> Enter(NodeOrToken::Node(node)) => { |
| <a href=#291 id=291 data-nosnippet>291</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(item) = <Either<ast::Item, ast::Variant>>::cast(node.clone()) { |
| <a href=#292 id=292 data-nosnippet>292</a> <span class="kw">match </span>item { |
| <a href=#293 id=293 data-nosnippet>293</a> Either::Left(item) => { |
| <a href=#294 id=294 data-nosnippet>294</a> <span class="kw">match </span><span class="kw-2">&</span>item { |
| <a href=#295 id=295 data-nosnippet>295</a> ast::Item::Fn(it) => { |
| <a href=#296 id=296 data-nosnippet>296</a> body_stack.push(sema.to_def(it).map(Into::into)) |
| <a href=#297 id=297 data-nosnippet>297</a> } |
| <a href=#298 id=298 data-nosnippet>298</a> ast::Item::Const(it) => { |
| <a href=#299 id=299 data-nosnippet>299</a> body_stack.push(sema.to_def(it).map(Into::into)) |
| <a href=#300 id=300 data-nosnippet>300</a> } |
| <a href=#301 id=301 data-nosnippet>301</a> ast::Item::Static(it) => { |
| <a href=#302 id=302 data-nosnippet>302</a> body_stack.push(sema.to_def(it).map(Into::into)) |
| <a href=#303 id=303 data-nosnippet>303</a> } |
| <a href=#304 id=304 data-nosnippet>304</a> <span class="kw">_ </span>=> (), |
| <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> <span class="kw">if </span>attr_or_derive_item.is_none() { |
| <a href=#308 id=308 data-nosnippet>308</a> <span class="kw">if </span>sema.is_attr_macro_call(InFile::new(file_id.into(), <span class="kw-2">&</span>item)) { |
| <a href=#309 id=309 data-nosnippet>309</a> attr_or_derive_item = <span class="prelude-val">Some</span>(AttrOrDerive::Attr(item)); |
| <a href=#310 id=310 data-nosnippet>310</a> } <span class="kw">else </span>{ |
| <a href=#311 id=311 data-nosnippet>311</a> <span class="kw">let </span>adt = <span class="kw">match </span>item { |
| <a href=#312 id=312 data-nosnippet>312</a> ast::Item::Enum(it) => <span class="prelude-val">Some</span>(ast::Adt::Enum(it)), |
| <a href=#313 id=313 data-nosnippet>313</a> ast::Item::Struct(it) => <span class="prelude-val">Some</span>(ast::Adt::Struct(it)), |
| <a href=#314 id=314 data-nosnippet>314</a> ast::Item::Union(it) => <span class="prelude-val">Some</span>(ast::Adt::Union(it)), |
| <a href=#315 id=315 data-nosnippet>315</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#316 id=316 data-nosnippet>316</a> }; |
| <a href=#317 id=317 data-nosnippet>317</a> <span class="kw">match </span>adt { |
| <a href=#318 id=318 data-nosnippet>318</a> <span class="prelude-val">Some</span>(adt) |
| <a href=#319 id=319 data-nosnippet>319</a> <span class="kw">if </span>sema.is_derive_annotated(InFile::new( |
| <a href=#320 id=320 data-nosnippet>320</a> file_id.into(), |
| <a href=#321 id=321 data-nosnippet>321</a> <span class="kw-2">&</span>adt, |
| <a href=#322 id=322 data-nosnippet>322</a> )) => |
| <a href=#323 id=323 data-nosnippet>323</a> { |
| <a href=#324 id=324 data-nosnippet>324</a> attr_or_derive_item = |
| <a href=#325 id=325 data-nosnippet>325</a> <span class="prelude-val">Some</span>(AttrOrDerive::Derive(ast::Item::from(adt))); |
| <a href=#326 id=326 data-nosnippet>326</a> } |
| <a href=#327 id=327 data-nosnippet>327</a> <span class="kw">_ </span>=> (), |
| <a href=#328 id=328 data-nosnippet>328</a> } |
| <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> Either::Right(it) => body_stack.push(sema.to_def(<span class="kw-2">&</span>it).map(Into::into)), |
| <a href=#333 id=333 data-nosnippet>333</a> } |
| <a href=#334 id=334 data-nosnippet>334</a> } |
| <a href=#335 id=335 data-nosnippet>335</a> } |
| <a href=#336 id=336 data-nosnippet>336</a> Leave(NodeOrToken::Node(node)) |
| <a href=#337 id=337 data-nosnippet>337</a> <span class="kw">if </span><Either<ast::Item, ast::Variant>>::can_cast(node.kind()) => |
| <a href=#338 id=338 data-nosnippet>338</a> { |
| <a href=#339 id=339 data-nosnippet>339</a> <span class="kw">match </span>ast::Item::cast(node.clone()) { |
| <a href=#340 id=340 data-nosnippet>340</a> <span class="prelude-val">Some</span>(item) => { |
| <a href=#341 id=341 data-nosnippet>341</a> <span class="kw">if </span>attr_or_derive_item.as_ref().is_some_and(|it| <span class="kw-2">*</span>it.item() == item) { |
| <a href=#342 id=342 data-nosnippet>342</a> attr_or_derive_item = <span class="prelude-val">None</span>; |
| <a href=#343 id=343 data-nosnippet>343</a> } |
| <a href=#344 id=344 data-nosnippet>344</a> <span class="kw">if </span><span class="macro">matches!</span>( |
| <a href=#345 id=345 data-nosnippet>345</a> item, |
| <a href=#346 id=346 data-nosnippet>346</a> ast::Item::Fn(<span class="kw">_</span>) | ast::Item::Const(<span class="kw">_</span>) | ast::Item::Static(<span class="kw">_</span>) |
| <a href=#347 id=347 data-nosnippet>347</a> ) { |
| <a href=#348 id=348 data-nosnippet>348</a> body_stack.pop(); |
| <a href=#349 id=349 data-nosnippet>349</a> } |
| <a href=#350 id=350 data-nosnippet>350</a> } |
| <a href=#351 id=351 data-nosnippet>351</a> <span class="prelude-val">None </span>=> <span class="kw">_ </span>= body_stack.pop(), |
| <a href=#352 id=352 data-nosnippet>352</a> } |
| <a href=#353 id=353 data-nosnippet>353</a> } |
| <a href=#354 id=354 data-nosnippet>354</a> <span class="kw">_ </span>=> (), |
| <a href=#355 id=355 data-nosnippet>355</a> } |
| <a href=#356 id=356 data-nosnippet>356</a> |
| <a href=#357 id=357 data-nosnippet>357</a> <span class="kw">let </span>element = <span class="kw">match </span>event { |
| <a href=#358 id=358 data-nosnippet>358</a> Enter(NodeOrToken::Token(tok)) <span class="kw">if </span>tok.kind() == WHITESPACE => <span class="kw">continue</span>, |
| <a href=#359 id=359 data-nosnippet>359</a> Enter(it) => it, |
| <a href=#360 id=360 data-nosnippet>360</a> Leave(NodeOrToken::Token(<span class="kw">_</span>)) => <span class="kw">continue</span>, |
| <a href=#361 id=361 data-nosnippet>361</a> Leave(NodeOrToken::Node(node)) => { |
| <a href=#362 id=362 data-nosnippet>362</a> <span class="kw">if </span>config.inject_doc_comment { |
| <a href=#363 id=363 data-nosnippet>363</a> <span class="comment">// Doc comment highlighting injection, we do this when leaving the node |
| <a href=#364 id=364 data-nosnippet>364</a> // so that we overwrite the highlighting of the doc comment itself. |
| <a href=#365 id=365 data-nosnippet>365</a> </span>inject::doc_comment(hl, sema, config, file_id, <span class="kw-2">&</span>node); |
| <a href=#366 id=366 data-nosnippet>366</a> } |
| <a href=#367 id=367 data-nosnippet>367</a> <span class="kw">continue</span>; |
| <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> <span class="kw">let </span>element = <span class="kw">match </span>element.clone() { |
| <a href=#372 id=372 data-nosnippet>372</a> NodeOrToken::Node(n) => <span class="kw">match </span>ast::NameLike::cast(n) { |
| <a href=#373 id=373 data-nosnippet>373</a> <span class="prelude-val">Some</span>(n) => NodeOrToken::Node(n), |
| <a href=#374 id=374 data-nosnippet>374</a> <span class="prelude-val">None </span>=> <span class="kw">continue</span>, |
| <a href=#375 id=375 data-nosnippet>375</a> }, |
| <a href=#376 id=376 data-nosnippet>376</a> NodeOrToken::Token(t) => NodeOrToken::Token(t), |
| <a href=#377 id=377 data-nosnippet>377</a> }; |
| <a href=#378 id=378 data-nosnippet>378</a> <span class="kw">let </span>original_token = element.as_token().cloned(); |
| <a href=#379 id=379 data-nosnippet>379</a> |
| <a href=#380 id=380 data-nosnippet>380</a> <span class="comment">// Descending tokens into macros is expensive even if no descending occurs, so make sure |
| <a href=#381 id=381 data-nosnippet>381</a> // that we actually are in a position where descending is possible. |
| <a href=#382 id=382 data-nosnippet>382</a> </span><span class="kw">let </span>in_macro = tt_level > <span class="number">0 |
| <a href=#383 id=383 data-nosnippet>383</a> </span>|| <span class="kw">match </span>attr_or_derive_item { |
| <a href=#384 id=384 data-nosnippet>384</a> <span class="prelude-val">Some</span>(AttrOrDerive::Attr(<span class="kw">_</span>)) => <span class="bool-val">true</span>, |
| <a href=#385 id=385 data-nosnippet>385</a> <span class="prelude-val">Some</span>(AttrOrDerive::Derive(<span class="kw">_</span>)) => inside_attribute, |
| <a href=#386 id=386 data-nosnippet>386</a> <span class="prelude-val">None </span>=> <span class="bool-val">false</span>, |
| <a href=#387 id=387 data-nosnippet>387</a> }; |
| <a href=#388 id=388 data-nosnippet>388</a> |
| <a href=#389 id=389 data-nosnippet>389</a> <span class="kw">let </span>(descended_element, current_body) = <span class="kw">match </span>element { |
| <a href=#390 id=390 data-nosnippet>390</a> <span class="comment">// Attempt to descend tokens into macro-calls. |
| <a href=#391 id=391 data-nosnippet>391</a> </span>NodeOrToken::Token(token) <span class="kw">if </span>in_macro => { |
| <a href=#392 id=392 data-nosnippet>392</a> <span class="kw">let </span>descended = descend_token(sema, InRealFile::new(file_id, token)); |
| <a href=#393 id=393 data-nosnippet>393</a> <span class="kw">let </span>body = <span class="kw">match </span><span class="kw-2">&</span>descended.value { |
| <a href=#394 id=394 data-nosnippet>394</a> NodeOrToken::Node(n) => { |
| <a href=#395 id=395 data-nosnippet>395</a> sema.body_for(InFile::new(descended.file_id, n.syntax())) |
| <a href=#396 id=396 data-nosnippet>396</a> } |
| <a href=#397 id=397 data-nosnippet>397</a> NodeOrToken::Token(t) => { |
| <a href=#398 id=398 data-nosnippet>398</a> t.parent().and_then(|it| sema.body_for(InFile::new(descended.file_id, <span class="kw-2">&</span>it))) |
| <a href=#399 id=399 data-nosnippet>399</a> } |
| <a href=#400 id=400 data-nosnippet>400</a> }; |
| <a href=#401 id=401 data-nosnippet>401</a> (descended, body) |
| <a href=#402 id=402 data-nosnippet>402</a> } |
| <a href=#403 id=403 data-nosnippet>403</a> n => (InFile::new(file_id.into(), n), body_stack.last().copied().flatten()), |
| <a href=#404 id=404 data-nosnippet>404</a> }; |
| <a href=#405 id=405 data-nosnippet>405</a> <span class="comment">// string highlight injections |
| <a href=#406 id=406 data-nosnippet>406</a> </span><span class="kw">if let </span>(<span class="prelude-val">Some</span>(original_token), <span class="prelude-val">Some</span>(descended_token)) = |
| <a href=#407 id=407 data-nosnippet>407</a> (original_token, descended_element.value.as_token()) |
| <a href=#408 id=408 data-nosnippet>408</a> { |
| <a href=#409 id=409 data-nosnippet>409</a> <span class="kw">let </span>control_flow = string_injections( |
| <a href=#410 id=410 data-nosnippet>410</a> hl, |
| <a href=#411 id=411 data-nosnippet>411</a> sema, |
| <a href=#412 id=412 data-nosnippet>412</a> config, |
| <a href=#413 id=413 data-nosnippet>413</a> file_id, |
| <a href=#414 id=414 data-nosnippet>414</a> krate, |
| <a href=#415 id=415 data-nosnippet>415</a> original_token, |
| <a href=#416 id=416 data-nosnippet>416</a> descended_token, |
| <a href=#417 id=417 data-nosnippet>417</a> ); |
| <a href=#418 id=418 data-nosnippet>418</a> <span class="kw">if </span>control_flow.is_break() { |
| <a href=#419 id=419 data-nosnippet>419</a> <span class="kw">continue</span>; |
| <a href=#420 id=420 data-nosnippet>420</a> } |
| <a href=#421 id=421 data-nosnippet>421</a> } |
| <a href=#422 id=422 data-nosnippet>422</a> |
| <a href=#423 id=423 data-nosnippet>423</a> <span class="kw">let </span>edition = descended_element.file_id.edition(sema.db); |
| <a href=#424 id=424 data-nosnippet>424</a> <span class="kw">let </span>unsafe_ops = <span class="kw">match </span>current_body { |
| <a href=#425 id=425 data-nosnippet>425</a> <span class="prelude-val">Some</span>(current_body) => per_body_cache |
| <a href=#426 id=426 data-nosnippet>426</a> .entry(current_body) |
| <a href=#427 id=427 data-nosnippet>427</a> .or_insert_with(|| sema.get_unsafe_ops(current_body)), |
| <a href=#428 id=428 data-nosnippet>428</a> <span class="prelude-val">None </span>=> <span class="kw-2">&</span>empty, |
| <a href=#429 id=429 data-nosnippet>429</a> }; |
| <a href=#430 id=430 data-nosnippet>430</a> <span class="kw">let </span>is_unsafe_node = |
| <a href=#431 id=431 data-nosnippet>431</a> |node| unsafe_ops.contains(<span class="kw-2">&</span>InFile::new(descended_element.file_id, node)); |
| <a href=#432 id=432 data-nosnippet>432</a> <span class="kw">let </span>element = <span class="kw">match </span>descended_element.value { |
| <a href=#433 id=433 data-nosnippet>433</a> NodeOrToken::Node(name_like) => { |
| <a href=#434 id=434 data-nosnippet>434</a> <span class="kw">let </span>hl = highlight::name_like( |
| <a href=#435 id=435 data-nosnippet>435</a> sema, |
| <a href=#436 id=436 data-nosnippet>436</a> krate, |
| <a href=#437 id=437 data-nosnippet>437</a> <span class="kw-2">&</span>is_unsafe_node, |
| <a href=#438 id=438 data-nosnippet>438</a> config.syntactic_name_ref_highlighting, |
| <a href=#439 id=439 data-nosnippet>439</a> name_like, |
| <a href=#440 id=440 data-nosnippet>440</a> edition, |
| <a href=#441 id=441 data-nosnippet>441</a> ); |
| <a href=#442 id=442 data-nosnippet>442</a> <span class="kw">if </span>hl.is_some() && !in_macro { |
| <a href=#443 id=443 data-nosnippet>443</a> <span class="comment">// skip highlighting the contained token of our name-like node |
| <a href=#444 id=444 data-nosnippet>444</a> // as that would potentially overwrite our result |
| <a href=#445 id=445 data-nosnippet>445</a> </span>preorder.skip_subtree(); |
| <a href=#446 id=446 data-nosnippet>446</a> } |
| <a href=#447 id=447 data-nosnippet>447</a> hl |
| <a href=#448 id=448 data-nosnippet>448</a> } |
| <a href=#449 id=449 data-nosnippet>449</a> NodeOrToken::Token(token) => { |
| <a href=#450 id=450 data-nosnippet>450</a> highlight::token(sema, token, edition, <span class="kw-2">&</span>is_unsafe_node, tt_level > <span class="number">0</span>) |
| <a href=#451 id=451 data-nosnippet>451</a> .zip(<span class="prelude-val">Some</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> }; |
| <a href=#454 id=454 data-nosnippet>454</a> <span class="kw">if let </span><span class="prelude-val">Some</span>((<span class="kw-2">mut </span>highlight, binding_hash)) = element { |
| <a href=#455 id=455 data-nosnippet>455</a> <span class="kw">if </span>is_unlinked && highlight.tag == HlTag::UnresolvedReference { |
| <a href=#456 id=456 data-nosnippet>456</a> <span class="comment">// do not emit unresolved references if the file is unlinked |
| <a href=#457 id=457 data-nosnippet>457</a> // let the editor do its highlighting for these tokens instead |
| <a href=#458 id=458 data-nosnippet>458</a> </span><span class="kw">continue</span>; |
| <a href=#459 id=459 data-nosnippet>459</a> } |
| <a href=#460 id=460 data-nosnippet>460</a> |
| <a href=#461 id=461 data-nosnippet>461</a> <span class="comment">// apply config filtering |
| <a href=#462 id=462 data-nosnippet>462</a> </span><span class="kw">if </span>!filter_by_config(<span class="kw-2">&mut </span>highlight, config) { |
| <a href=#463 id=463 data-nosnippet>463</a> <span class="kw">continue</span>; |
| <a href=#464 id=464 data-nosnippet>464</a> } |
| <a href=#465 id=465 data-nosnippet>465</a> |
| <a href=#466 id=466 data-nosnippet>466</a> <span class="kw">if </span>inside_attribute { |
| <a href=#467 id=467 data-nosnippet>467</a> highlight |= HlMod::Attribute |
| <a href=#468 id=468 data-nosnippet>468</a> } |
| <a href=#469 id=469 data-nosnippet>469</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(m) = descended_element.file_id.macro_file() { |
| <a href=#470 id=470 data-nosnippet>470</a> <span class="kw">if let </span>MacroKind::ProcMacro | MacroKind::Attr | MacroKind::Derive = m.kind(sema.db) |
| <a href=#471 id=471 data-nosnippet>471</a> { |
| <a href=#472 id=472 data-nosnippet>472</a> highlight |= HlMod::ProcMacro |
| <a href=#473 id=473 data-nosnippet>473</a> } |
| <a href=#474 id=474 data-nosnippet>474</a> highlight |= HlMod::Macro |
| <a href=#475 id=475 data-nosnippet>475</a> } |
| <a href=#476 id=476 data-nosnippet>476</a> |
| <a href=#477 id=477 data-nosnippet>477</a> hl.add(HlRange { range, highlight, binding_hash }); |
| <a href=#478 id=478 data-nosnippet>478</a> } |
| <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>string_injections( |
| <a href=#483 id=483 data-nosnippet>483</a> hl: <span class="kw-2">&mut </span>Highlights, |
| <a href=#484 id=484 data-nosnippet>484</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#485 id=485 data-nosnippet>485</a> config: <span class="kw-2">&</span>HighlightConfig<<span class="lifetime">'_</span>>, |
| <a href=#486 id=486 data-nosnippet>486</a> file_id: EditionedFileId, |
| <a href=#487 id=487 data-nosnippet>487</a> krate: <span class="prelude-ty">Option</span><hir::Crate>, |
| <a href=#488 id=488 data-nosnippet>488</a> token: SyntaxToken, |
| <a href=#489 id=489 data-nosnippet>489</a> descended_token: <span class="kw-2">&</span>SyntaxToken, |
| <a href=#490 id=490 data-nosnippet>490</a>) -> ControlFlow<()> { |
| <a href=#491 id=491 data-nosnippet>491</a> <span class="kw">if </span>!<span class="macro">matches!</span>(token.kind(), STRING | BYTE_STRING | BYTE | CHAR | C_STRING) { |
| <a href=#492 id=492 data-nosnippet>492</a> <span class="kw">return </span>ControlFlow::Continue(()); |
| <a href=#493 id=493 data-nosnippet>493</a> } |
| <a href=#494 id=494 data-nosnippet>494</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(string) = ast::String::cast(token.clone()) { |
| <a href=#495 id=495 data-nosnippet>495</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(descended_string) = ast::String::cast(descended_token.clone()) { |
| <a href=#496 id=496 data-nosnippet>496</a> <span class="kw">if </span>string.is_raw() |
| <a href=#497 id=497 data-nosnippet>497</a> && inject::ra_fixture(hl, sema, config, <span class="kw-2">&</span>string, <span class="kw-2">&</span>descended_string).is_some() |
| <a href=#498 id=498 data-nosnippet>498</a> { |
| <a href=#499 id=499 data-nosnippet>499</a> <span class="kw">return </span>ControlFlow::Break(()); |
| <a href=#500 id=500 data-nosnippet>500</a> } |
| <a href=#501 id=501 data-nosnippet>501</a> highlight_format_string( |
| <a href=#502 id=502 data-nosnippet>502</a> hl, |
| <a href=#503 id=503 data-nosnippet>503</a> sema, |
| <a href=#504 id=504 data-nosnippet>504</a> krate, |
| <a href=#505 id=505 data-nosnippet>505</a> <span class="kw-2">&</span>string, |
| <a href=#506 id=506 data-nosnippet>506</a> <span class="kw-2">&</span>descended_string, |
| <a href=#507 id=507 data-nosnippet>507</a> file_id.edition(sema.db), |
| <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> <span class="kw">if </span>!string.is_raw() { |
| <a href=#511 id=511 data-nosnippet>511</a> highlight_escape_string(hl, config, <span class="kw-2">&</span>string); |
| <a href=#512 id=512 data-nosnippet>512</a> } |
| <a href=#513 id=513 data-nosnippet>513</a> } |
| <a href=#514 id=514 data-nosnippet>514</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(byte_string) = ast::ByteString::cast(token.clone()) { |
| <a href=#515 id=515 data-nosnippet>515</a> <span class="kw">if </span>!byte_string.is_raw() { |
| <a href=#516 id=516 data-nosnippet>516</a> highlight_escape_string(hl, config, <span class="kw-2">&</span>byte_string); |
| <a href=#517 id=517 data-nosnippet>517</a> } |
| <a href=#518 id=518 data-nosnippet>518</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(c_string) = ast::CString::cast(token.clone()) { |
| <a href=#519 id=519 data-nosnippet>519</a> <span class="kw">if </span>!c_string.is_raw() { |
| <a href=#520 id=520 data-nosnippet>520</a> highlight_escape_string(hl, config, <span class="kw-2">&</span>c_string); |
| <a href=#521 id=521 data-nosnippet>521</a> } |
| <a href=#522 id=522 data-nosnippet>522</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(char) = ast::Char::cast(token.clone()) { |
| <a href=#523 id=523 data-nosnippet>523</a> highlight_escape_char(hl, config, <span class="kw-2">&</span>char) |
| <a href=#524 id=524 data-nosnippet>524</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(byte) = ast::Byte::cast(token) { |
| <a href=#525 id=525 data-nosnippet>525</a> highlight_escape_byte(hl, config, <span class="kw-2">&</span>byte) |
| <a href=#526 id=526 data-nosnippet>526</a> } |
| <a href=#527 id=527 data-nosnippet>527</a> ControlFlow::Continue(()) |
| <a href=#528 id=528 data-nosnippet>528</a>} |
| <a href=#529 id=529 data-nosnippet>529</a> |
| <a href=#530 id=530 data-nosnippet>530</a><span class="kw">fn </span>descend_token( |
| <a href=#531 id=531 data-nosnippet>531</a> sema: <span class="kw-2">&</span>Semantics<<span class="lifetime">'_</span>, RootDatabase>, |
| <a href=#532 id=532 data-nosnippet>532</a> token: InRealFile<SyntaxToken>, |
| <a href=#533 id=533 data-nosnippet>533</a>) -> InFile<NodeOrToken<ast::NameLike, SyntaxToken>> { |
| <a href=#534 id=534 data-nosnippet>534</a> <span class="kw">if </span>token.value.kind() == COMMENT { |
| <a href=#535 id=535 data-nosnippet>535</a> <span class="kw">return </span>token.map(NodeOrToken::Token).into(); |
| <a href=#536 id=536 data-nosnippet>536</a> } |
| <a href=#537 id=537 data-nosnippet>537</a> <span class="kw">let </span>ranker = Ranker::from_token(<span class="kw-2">&</span>token.value); |
| <a href=#538 id=538 data-nosnippet>538</a> |
| <a href=#539 id=539 data-nosnippet>539</a> <span class="kw">let </span><span class="kw-2">mut </span>t = <span class="prelude-val">None</span>; |
| <a href=#540 id=540 data-nosnippet>540</a> <span class="kw">let </span><span class="kw-2">mut </span>r = <span class="number">0</span>; |
| <a href=#541 id=541 data-nosnippet>541</a> sema.descend_into_macros_breakable(token.clone().into(), |tok, _ctx| { |
| <a href=#542 id=542 data-nosnippet>542</a> <span class="comment">// FIXME: Consider checking ctx transparency for being opaque? |
| <a href=#543 id=543 data-nosnippet>543</a> </span><span class="kw">let </span>my_rank = ranker.rank_token(<span class="kw-2">&</span>tok.value); |
| <a href=#544 id=544 data-nosnippet>544</a> |
| <a href=#545 id=545 data-nosnippet>545</a> <span class="kw">if </span>my_rank >= Ranker::MAX_RANK { |
| <a href=#546 id=546 data-nosnippet>546</a> <span class="comment">// a rank of 0b1110 means that we have found a maximally interesting |
| <a href=#547 id=547 data-nosnippet>547</a> // token so stop early. |
| <a href=#548 id=548 data-nosnippet>548</a> </span>t = <span class="prelude-val">Some</span>(tok); |
| <a href=#549 id=549 data-nosnippet>549</a> <span class="kw">return </span>ControlFlow::Break(()); |
| <a href=#550 id=550 data-nosnippet>550</a> } |
| <a href=#551 id=551 data-nosnippet>551</a> |
| <a href=#552 id=552 data-nosnippet>552</a> <span class="comment">// r = r.max(my_rank); |
| <a href=#553 id=553 data-nosnippet>553</a> // t = Some(t.take_if(|_| r < my_rank).unwrap_or(tok)); |
| <a href=#554 id=554 data-nosnippet>554</a> </span><span class="kw">match </span><span class="kw-2">&mut </span>t { |
| <a href=#555 id=555 data-nosnippet>555</a> <span class="prelude-val">Some</span>(prev) <span class="kw">if </span>r < my_rank => { |
| <a href=#556 id=556 data-nosnippet>556</a> <span class="kw-2">*</span>prev = tok; |
| <a href=#557 id=557 data-nosnippet>557</a> r = my_rank; |
| <a href=#558 id=558 data-nosnippet>558</a> } |
| <a href=#559 id=559 data-nosnippet>559</a> <span class="prelude-val">Some</span>(<span class="kw">_</span>) => (), |
| <a href=#560 id=560 data-nosnippet>560</a> <span class="prelude-val">None </span>=> { |
| <a href=#561 id=561 data-nosnippet>561</a> r = my_rank; |
| <a href=#562 id=562 data-nosnippet>562</a> t = <span class="prelude-val">Some</span>(tok) |
| <a href=#563 id=563 data-nosnippet>563</a> } |
| <a href=#564 id=564 data-nosnippet>564</a> } |
| <a href=#565 id=565 data-nosnippet>565</a> ControlFlow::Continue(()) |
| <a href=#566 id=566 data-nosnippet>566</a> }); |
| <a href=#567 id=567 data-nosnippet>567</a> |
| <a href=#568 id=568 data-nosnippet>568</a> <span class="kw">let </span>token = t.unwrap_or_else(|| token.into()); |
| <a href=#569 id=569 data-nosnippet>569</a> token.map(|token| <span class="kw">match </span>token.parent().and_then(ast::NameLike::cast) { |
| <a href=#570 id=570 data-nosnippet>570</a> <span class="comment">// Remap the token into the wrapping single token nodes |
| <a href=#571 id=571 data-nosnippet>571</a> </span><span class="prelude-val">Some</span>(parent) => <span class="kw">match </span>(token.kind(), parent.syntax().kind()) { |
| <a href=#572 id=572 data-nosnippet>572</a> (<span class="macro">T!</span>[ident] | <span class="macro">T!</span>[<span class="self">self</span>], NAME) |
| <a href=#573 id=573 data-nosnippet>573</a> | (<span class="macro">T!</span>[ident] | <span class="macro">T!</span>[<span class="self">self</span>] | <span class="macro">T!</span>[<span class="kw">super</span>] | <span class="macro">T!</span>[<span class="kw">crate</span>] | <span class="macro">T!</span>[<span class="self">Self</span>], NAME_REF) |
| <a href=#574 id=574 data-nosnippet>574</a> | (INT_NUMBER, NAME_REF) |
| <a href=#575 id=575 data-nosnippet>575</a> | (LIFETIME_IDENT, LIFETIME) => NodeOrToken::Node(parent), |
| <a href=#576 id=576 data-nosnippet>576</a> <span class="kw">_ </span>=> NodeOrToken::Token(token), |
| <a href=#577 id=577 data-nosnippet>577</a> }, |
| <a href=#578 id=578 data-nosnippet>578</a> <span class="prelude-val">None </span>=> NodeOrToken::Token(token), |
| <a href=#579 id=579 data-nosnippet>579</a> }) |
| <a href=#580 id=580 data-nosnippet>580</a>} |
| <a href=#581 id=581 data-nosnippet>581</a> |
| <a href=#582 id=582 data-nosnippet>582</a><span class="kw">fn </span>filter_by_config(highlight: <span class="kw-2">&mut </span>Highlight, config: <span class="kw-2">&</span>HighlightConfig<<span class="lifetime">'_</span>>) -> bool { |
| <a href=#583 id=583 data-nosnippet>583</a> <span class="kw">match </span><span class="kw-2">&mut </span>highlight.tag { |
| <a href=#584 id=584 data-nosnippet>584</a> HlTag::StringLiteral | HlTag::EscapeSequence | HlTag::InvalidEscapeSequence |
| <a href=#585 id=585 data-nosnippet>585</a> <span class="kw">if </span>!config.strings => |
| <a href=#586 id=586 data-nosnippet>586</a> { |
| <a href=#587 id=587 data-nosnippet>587</a> <span class="kw">return </span><span class="bool-val">false</span>; |
| <a href=#588 id=588 data-nosnippet>588</a> } |
| <a href=#589 id=589 data-nosnippet>589</a> HlTag::Comment <span class="kw">if </span>!config.comments => <span class="kw">return </span><span class="bool-val">false</span>, |
| <a href=#590 id=590 data-nosnippet>590</a> <span class="comment">// If punctuation is disabled, make the macro bang part of the macro call again. |
| <a href=#591 id=591 data-nosnippet>591</a> </span>tag @ HlTag::Punctuation(HlPunct::MacroBang) => { |
| <a href=#592 id=592 data-nosnippet>592</a> <span class="kw">if </span>!config.macro_bang { |
| <a href=#593 id=593 data-nosnippet>593</a> <span class="kw-2">*</span>tag = HlTag::Symbol(SymbolKind::Macro); |
| <a href=#594 id=594 data-nosnippet>594</a> } <span class="kw">else if </span>!config.specialize_punctuation { |
| <a href=#595 id=595 data-nosnippet>595</a> <span class="kw-2">*</span>tag = HlTag::Punctuation(HlPunct::Other); |
| <a href=#596 id=596 data-nosnippet>596</a> } |
| <a href=#597 id=597 data-nosnippet>597</a> } |
| <a href=#598 id=598 data-nosnippet>598</a> HlTag::Punctuation(<span class="kw">_</span>) <span class="kw">if </span>!config.punctuation && highlight.mods.is_empty() => <span class="kw">return </span><span class="bool-val">false</span>, |
| <a href=#599 id=599 data-nosnippet>599</a> tag @ HlTag::Punctuation(<span class="kw">_</span>) <span class="kw">if </span>!config.specialize_punctuation => { |
| <a href=#600 id=600 data-nosnippet>600</a> <span class="kw-2">*</span>tag = HlTag::Punctuation(HlPunct::Other); |
| <a href=#601 id=601 data-nosnippet>601</a> } |
| <a href=#602 id=602 data-nosnippet>602</a> HlTag::Operator(<span class="kw">_</span>) <span class="kw">if </span>!config.operator && highlight.mods.is_empty() => <span class="kw">return </span><span class="bool-val">false</span>, |
| <a href=#603 id=603 data-nosnippet>603</a> tag @ HlTag::Operator(<span class="kw">_</span>) <span class="kw">if </span>!config.specialize_operator => { |
| <a href=#604 id=604 data-nosnippet>604</a> <span class="kw-2">*</span>tag = HlTag::Operator(HlOperator::Other); |
| <a href=#605 id=605 data-nosnippet>605</a> } |
| <a href=#606 id=606 data-nosnippet>606</a> <span class="kw">_ </span>=> (), |
| <a href=#607 id=607 data-nosnippet>607</a> } |
| <a href=#608 id=608 data-nosnippet>608</a> <span class="bool-val">true |
| <a href=#609 id=609 data-nosnippet>609</a></span>} |
| </code></pre></div></section></main></body></html> |
