| <!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-assists/src/assist_context.rs`."><title>assist_context.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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="ide_assists" data-themes="" data-resource-suffix="" data-rustdoc-version="1.91.1 (ed61e7d7e 2025-11-07)" data-channel="1.91.1" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-c3e638e9.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-6dc2a7f3.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.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_assists/</div>assist_context.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="doccomment">//! See [`AssistContext`]. |
| <a href=#2 id=2 data-nosnippet>2</a> |
| <a href=#3 id=3 data-nosnippet>3</a></span><span class="kw">use </span>hir::{EditionedFileId, FileRange, Semantics}; |
| <a href=#4 id=4 data-nosnippet>4</a><span class="kw">use </span>ide_db::{FileId, RootDatabase, label::Label}; |
| <a href=#5 id=5 data-nosnippet>5</a><span class="kw">use </span>syntax::Edition; |
| <a href=#6 id=6 data-nosnippet>6</a><span class="kw">use </span>syntax::{ |
| <a href=#7 id=7 data-nosnippet>7</a> AstNode, AstToken, Direction, SourceFile, SyntaxElement, SyntaxKind, SyntaxToken, TextRange, |
| <a href=#8 id=8 data-nosnippet>8</a> TextSize, TokenAtOffset, |
| <a href=#9 id=9 data-nosnippet>9</a> algo::{<span class="self">self</span>, find_node_at_offset, find_node_at_range}, |
| <a href=#10 id=10 data-nosnippet>10</a>}; |
| <a href=#11 id=11 data-nosnippet>11</a> |
| <a href=#12 id=12 data-nosnippet>12</a><span class="kw">use crate</span>::{ |
| <a href=#13 id=13 data-nosnippet>13</a> Assist, AssistId, AssistKind, AssistResolveStrategy, GroupLabel, assist_config::AssistConfig, |
| <a href=#14 id=14 data-nosnippet>14</a>}; |
| <a href=#15 id=15 data-nosnippet>15</a> |
| <a href=#16 id=16 data-nosnippet>16</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>ide_db::source_change::{SourceChangeBuilder, TreeMutator}; |
| <a href=#17 id=17 data-nosnippet>17</a> |
| <a href=#18 id=18 data-nosnippet>18</a><span class="doccomment">/// `AssistContext` allows to apply an assist or check if it could be applied. |
| <a href=#19 id=19 data-nosnippet>19</a>/// |
| <a href=#20 id=20 data-nosnippet>20</a>/// Assists use a somewhat over-engineered approach, given the current needs. |
| <a href=#21 id=21 data-nosnippet>21</a>/// The assists workflow consists of two phases. In the first phase, a user asks |
| <a href=#22 id=22 data-nosnippet>22</a>/// for the list of available assists. In the second phase, the user picks a |
| <a href=#23 id=23 data-nosnippet>23</a>/// particular assist and it gets applied. |
| <a href=#24 id=24 data-nosnippet>24</a>/// |
| <a href=#25 id=25 data-nosnippet>25</a>/// There are two peculiarities here: |
| <a href=#26 id=26 data-nosnippet>26</a>/// |
| <a href=#27 id=27 data-nosnippet>27</a>/// * first, we ideally avoid computing more things then necessary to answer "is |
| <a href=#28 id=28 data-nosnippet>28</a>/// assist applicable" in the first phase. |
| <a href=#29 id=29 data-nosnippet>29</a>/// * second, when we are applying assist, we don't have a guarantee that there |
| <a href=#30 id=30 data-nosnippet>30</a>/// weren't any changes between the point when user asked for assists and when |
| <a href=#31 id=31 data-nosnippet>31</a>/// they applied a particular assist. So, when applying assist, we need to do |
| <a href=#32 id=32 data-nosnippet>32</a>/// all the checks from scratch. |
| <a href=#33 id=33 data-nosnippet>33</a>/// |
| <a href=#34 id=34 data-nosnippet>34</a>/// To avoid repeating the same code twice for both "check" and "apply" |
| <a href=#35 id=35 data-nosnippet>35</a>/// functions, we use an approach reminiscent of that of Django's function based |
| <a href=#36 id=36 data-nosnippet>36</a>/// views dealing with forms. Each assist receives a runtime parameter, |
| <a href=#37 id=37 data-nosnippet>37</a>/// `resolve`. It first check if an edit is applicable (potentially computing |
| <a href=#38 id=38 data-nosnippet>38</a>/// info required to compute the actual edit). If it is applicable, and |
| <a href=#39 id=39 data-nosnippet>39</a>/// `resolve` is `true`, it then computes the actual edit. |
| <a href=#40 id=40 data-nosnippet>40</a>/// |
| <a href=#41 id=41 data-nosnippet>41</a>/// So, to implement the original assists workflow, we can first apply each edit |
| <a href=#42 id=42 data-nosnippet>42</a>/// with `resolve = false`, and then applying the selected edit again, with |
| <a href=#43 id=43 data-nosnippet>43</a>/// `resolve = true` this time. |
| <a href=#44 id=44 data-nosnippet>44</a>/// |
| <a href=#45 id=45 data-nosnippet>45</a>/// Note, however, that we don't actually use such two-phase logic at the |
| <a href=#46 id=46 data-nosnippet>46</a>/// moment, because the LSP API is pretty awkward in this place, and it's much |
| <a href=#47 id=47 data-nosnippet>47</a>/// easier to just compute the edit eagerly :-) |
| <a href=#48 id=48 data-nosnippet>48</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>AssistContext<<span class="lifetime">'a</span>> { |
| <a href=#49 id=49 data-nosnippet>49</a> <span class="kw">pub</span>(<span class="kw">crate</span>) config: <span class="kw-2">&</span><span class="lifetime">'a </span>AssistConfig, |
| <a href=#50 id=50 data-nosnippet>50</a> <span class="kw">pub</span>(<span class="kw">crate</span>) sema: Semantics<<span class="lifetime">'a</span>, RootDatabase>, |
| <a href=#51 id=51 data-nosnippet>51</a> frange: FileRange, |
| <a href=#52 id=52 data-nosnippet>52</a> trimmed_range: TextRange, |
| <a href=#53 id=53 data-nosnippet>53</a> source_file: SourceFile, |
| <a href=#54 id=54 data-nosnippet>54</a> <span class="comment">// We cache this here to speed up things slightly |
| <a href=#55 id=55 data-nosnippet>55</a> </span>token_at_offset: TokenAtOffset<SyntaxToken>, |
| <a href=#56 id=56 data-nosnippet>56</a> <span class="comment">// We cache this here to speed up things slightly |
| <a href=#57 id=57 data-nosnippet>57</a> </span>covering_element: SyntaxElement, |
| <a href=#58 id=58 data-nosnippet>58</a>} |
| <a href=#59 id=59 data-nosnippet>59</a> |
| <a href=#60 id=60 data-nosnippet>60</a><span class="kw">impl</span><<span class="lifetime">'a</span>> AssistContext<<span class="lifetime">'a</span>> { |
| <a href=#61 id=61 data-nosnippet>61</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new( |
| <a href=#62 id=62 data-nosnippet>62</a> sema: Semantics<<span class="lifetime">'a</span>, RootDatabase>, |
| <a href=#63 id=63 data-nosnippet>63</a> config: <span class="kw-2">&</span><span class="lifetime">'a </span>AssistConfig, |
| <a href=#64 id=64 data-nosnippet>64</a> frange: FileRange, |
| <a href=#65 id=65 data-nosnippet>65</a> ) -> AssistContext<<span class="lifetime">'a</span>> { |
| <a href=#66 id=66 data-nosnippet>66</a> <span class="kw">let </span>source_file = sema.parse(frange.file_id); |
| <a href=#67 id=67 data-nosnippet>67</a> |
| <a href=#68 id=68 data-nosnippet>68</a> <span class="kw">let </span>start = frange.range.start(); |
| <a href=#69 id=69 data-nosnippet>69</a> <span class="kw">let </span>end = frange.range.end(); |
| <a href=#70 id=70 data-nosnippet>70</a> <span class="kw">let </span>left = source_file.syntax().token_at_offset(start); |
| <a href=#71 id=71 data-nosnippet>71</a> <span class="kw">let </span>right = source_file.syntax().token_at_offset(end); |
| <a href=#72 id=72 data-nosnippet>72</a> <span class="kw">let </span>left = |
| <a href=#73 id=73 data-nosnippet>73</a> left.right_biased().and_then(|t| algo::skip_whitespace_token(t, Direction::Next)); |
| <a href=#74 id=74 data-nosnippet>74</a> <span class="kw">let </span>right = |
| <a href=#75 id=75 data-nosnippet>75</a> right.left_biased().and_then(|t| algo::skip_whitespace_token(t, Direction::Prev)); |
| <a href=#76 id=76 data-nosnippet>76</a> <span class="kw">let </span>left = left.map(|t| t.text_range().start().clamp(start, end)); |
| <a href=#77 id=77 data-nosnippet>77</a> <span class="kw">let </span>right = right.map(|t| t.text_range().end().clamp(start, end)); |
| <a href=#78 id=78 data-nosnippet>78</a> |
| <a href=#79 id=79 data-nosnippet>79</a> <span class="kw">let </span>trimmed_range = <span class="kw">match </span>(left, right) { |
| <a href=#80 id=80 data-nosnippet>80</a> (<span class="prelude-val">Some</span>(left), <span class="prelude-val">Some</span>(right)) <span class="kw">if </span>left <= right => TextRange::new(left, right), |
| <a href=#81 id=81 data-nosnippet>81</a> <span class="comment">// Selection solely consists of whitespace so just fall back to the original |
| <a href=#82 id=82 data-nosnippet>82</a> </span><span class="kw">_ </span>=> frange.range, |
| <a href=#83 id=83 data-nosnippet>83</a> }; |
| <a href=#84 id=84 data-nosnippet>84</a> <span class="kw">let </span>token_at_offset = source_file.syntax().token_at_offset(frange.range.start()); |
| <a href=#85 id=85 data-nosnippet>85</a> <span class="kw">let </span>covering_element = source_file.syntax().covering_element(trimmed_range); |
| <a href=#86 id=86 data-nosnippet>86</a> |
| <a href=#87 id=87 data-nosnippet>87</a> AssistContext { |
| <a href=#88 id=88 data-nosnippet>88</a> config, |
| <a href=#89 id=89 data-nosnippet>89</a> sema, |
| <a href=#90 id=90 data-nosnippet>90</a> frange, |
| <a href=#91 id=91 data-nosnippet>91</a> source_file, |
| <a href=#92 id=92 data-nosnippet>92</a> trimmed_range, |
| <a href=#93 id=93 data-nosnippet>93</a> token_at_offset, |
| <a href=#94 id=94 data-nosnippet>94</a> covering_element, |
| <a href=#95 id=95 data-nosnippet>95</a> } |
| <a href=#96 id=96 data-nosnippet>96</a> } |
| <a href=#97 id=97 data-nosnippet>97</a> |
| <a href=#98 id=98 data-nosnippet>98</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>db(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'a </span>RootDatabase { |
| <a href=#99 id=99 data-nosnippet>99</a> <span class="self">self</span>.sema.db |
| <a href=#100 id=100 data-nosnippet>100</a> } |
| <a href=#101 id=101 data-nosnippet>101</a> |
| <a href=#102 id=102 data-nosnippet>102</a> <span class="comment">// NB, this ignores active selection. |
| <a href=#103 id=103 data-nosnippet>103</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>offset(<span class="kw-2">&</span><span class="self">self</span>) -> TextSize { |
| <a href=#104 id=104 data-nosnippet>104</a> <span class="self">self</span>.frange.range.start() |
| <a href=#105 id=105 data-nosnippet>105</a> } |
| <a href=#106 id=106 data-nosnippet>106</a> |
| <a href=#107 id=107 data-nosnippet>107</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>vfs_file_id(<span class="kw-2">&</span><span class="self">self</span>) -> FileId { |
| <a href=#108 id=108 data-nosnippet>108</a> <span class="self">self</span>.frange.file_id.file_id(<span class="self">self</span>.db()) |
| <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="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>file_id(<span class="kw-2">&</span><span class="self">self</span>) -> EditionedFileId { |
| <a href=#112 id=112 data-nosnippet>112</a> <span class="self">self</span>.frange.file_id |
| <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> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>edition(<span class="kw-2">&</span><span class="self">self</span>) -> Edition { |
| <a href=#116 id=116 data-nosnippet>116</a> <span class="self">self</span>.frange.file_id.edition(<span class="self">self</span>.db()) |
| <a href=#117 id=117 data-nosnippet>117</a> } |
| <a href=#118 id=118 data-nosnippet>118</a> |
| <a href=#119 id=119 data-nosnippet>119</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>has_empty_selection(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#120 id=120 data-nosnippet>120</a> <span class="self">self</span>.trimmed_range.is_empty() |
| <a href=#121 id=121 data-nosnippet>121</a> } |
| <a href=#122 id=122 data-nosnippet>122</a> |
| <a href=#123 id=123 data-nosnippet>123</a> <span class="doccomment">/// Returns the selected range trimmed for whitespace tokens, that is the range will be snapped |
| <a href=#124 id=124 data-nosnippet>124</a> /// to the nearest enclosed token. |
| <a href=#125 id=125 data-nosnippet>125</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>selection_trimmed(<span class="kw-2">&</span><span class="self">self</span>) -> TextRange { |
| <a href=#126 id=126 data-nosnippet>126</a> <span class="self">self</span>.trimmed_range |
| <a href=#127 id=127 data-nosnippet>127</a> } |
| <a href=#128 id=128 data-nosnippet>128</a> |
| <a href=#129 id=129 data-nosnippet>129</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>source_file(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>SourceFile { |
| <a href=#130 id=130 data-nosnippet>130</a> <span class="kw-2">&</span><span class="self">self</span>.source_file |
| <a href=#131 id=131 data-nosnippet>131</a> } |
| <a href=#132 id=132 data-nosnippet>132</a> |
| <a href=#133 id=133 data-nosnippet>133</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>token_at_offset(<span class="kw-2">&</span><span class="self">self</span>) -> TokenAtOffset<SyntaxToken> { |
| <a href=#134 id=134 data-nosnippet>134</a> <span class="self">self</span>.token_at_offset.clone() |
| <a href=#135 id=135 data-nosnippet>135</a> } |
| <a href=#136 id=136 data-nosnippet>136</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>find_token_syntax_at_offset(<span class="kw-2">&</span><span class="self">self</span>, kind: SyntaxKind) -> <span class="prelude-ty">Option</span><SyntaxToken> { |
| <a href=#137 id=137 data-nosnippet>137</a> <span class="self">self</span>.token_at_offset().find(|it| it.kind() == kind) |
| <a href=#138 id=138 data-nosnippet>138</a> } |
| <a href=#139 id=139 data-nosnippet>139</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>find_token_at_offset<T: AstToken>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><T> { |
| <a href=#140 id=140 data-nosnippet>140</a> <span class="self">self</span>.token_at_offset().find_map(T::cast) |
| <a href=#141 id=141 data-nosnippet>141</a> } |
| <a href=#142 id=142 data-nosnippet>142</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>find_node_at_offset<N: AstNode>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><N> { |
| <a href=#143 id=143 data-nosnippet>143</a> find_node_at_offset(<span class="self">self</span>.source_file.syntax(), <span class="self">self</span>.offset()) |
| <a href=#144 id=144 data-nosnippet>144</a> } |
| <a href=#145 id=145 data-nosnippet>145</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>find_node_at_trimmed_offset<N: AstNode>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><N> { |
| <a href=#146 id=146 data-nosnippet>146</a> find_node_at_offset(<span class="self">self</span>.source_file.syntax(), <span class="self">self</span>.trimmed_range.start()) |
| <a href=#147 id=147 data-nosnippet>147</a> } |
| <a href=#148 id=148 data-nosnippet>148</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>find_node_at_range<N: AstNode>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><N> { |
| <a href=#149 id=149 data-nosnippet>149</a> find_node_at_range(<span class="self">self</span>.source_file.syntax(), <span class="self">self</span>.trimmed_range) |
| <a href=#150 id=150 data-nosnippet>150</a> } |
| <a href=#151 id=151 data-nosnippet>151</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>find_node_at_offset_with_descend<N: AstNode>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><N> { |
| <a href=#152 id=152 data-nosnippet>152</a> <span class="self">self</span>.sema.find_node_at_offset_with_descend(<span class="self">self</span>.source_file.syntax(), <span class="self">self</span>.offset()) |
| <a href=#153 id=153 data-nosnippet>153</a> } |
| <a href=#154 id=154 data-nosnippet>154</a> <span class="doccomment">/// Returns the element covered by the selection range, this excludes trailing whitespace in the selection. |
| <a href=#155 id=155 data-nosnippet>155</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>covering_element(<span class="kw-2">&</span><span class="self">self</span>) -> SyntaxElement { |
| <a href=#156 id=156 data-nosnippet>156</a> <span class="self">self</span>.covering_element.clone() |
| <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> |
| <a href=#160 id=160 data-nosnippet>160</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Assists { |
| <a href=#161 id=161 data-nosnippet>161</a> file: FileId, |
| <a href=#162 id=162 data-nosnippet>162</a> resolve: AssistResolveStrategy, |
| <a href=#163 id=163 data-nosnippet>163</a> buf: Vec<Assist>, |
| <a href=#164 id=164 data-nosnippet>164</a> allowed: <span class="prelude-ty">Option</span><Vec<AssistKind>>, |
| <a href=#165 id=165 data-nosnippet>165</a>} |
| <a href=#166 id=166 data-nosnippet>166</a> |
| <a href=#167 id=167 data-nosnippet>167</a><span class="kw">impl </span>Assists { |
| <a href=#168 id=168 data-nosnippet>168</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(ctx: <span class="kw-2">&</span>AssistContext<<span class="lifetime">'_</span>>, resolve: AssistResolveStrategy) -> Assists { |
| <a href=#169 id=169 data-nosnippet>169</a> Assists { |
| <a href=#170 id=170 data-nosnippet>170</a> resolve, |
| <a href=#171 id=171 data-nosnippet>171</a> file: ctx.frange.file_id.file_id(ctx.db()), |
| <a href=#172 id=172 data-nosnippet>172</a> buf: Vec::new(), |
| <a href=#173 id=173 data-nosnippet>173</a> allowed: ctx.config.allowed.clone(), |
| <a href=#174 id=174 data-nosnippet>174</a> } |
| <a href=#175 id=175 data-nosnippet>175</a> } |
| <a href=#176 id=176 data-nosnippet>176</a> |
| <a href=#177 id=177 data-nosnippet>177</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>finish(<span class="kw-2">mut </span><span class="self">self</span>) -> Vec<Assist> { |
| <a href=#178 id=178 data-nosnippet>178</a> <span class="self">self</span>.buf.sort_by_key(|assist| assist.target.len()); |
| <a href=#179 id=179 data-nosnippet>179</a> <span class="self">self</span>.buf |
| <a href=#180 id=180 data-nosnippet>180</a> } |
| <a href=#181 id=181 data-nosnippet>181</a> |
| <a href=#182 id=182 data-nosnippet>182</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>add( |
| <a href=#183 id=183 data-nosnippet>183</a> <span class="kw-2">&mut </span><span class="self">self</span>, |
| <a href=#184 id=184 data-nosnippet>184</a> id: AssistId, |
| <a href=#185 id=185 data-nosnippet>185</a> label: <span class="kw">impl </span>Into<String>, |
| <a href=#186 id=186 data-nosnippet>186</a> target: TextRange, |
| <a href=#187 id=187 data-nosnippet>187</a> f: <span class="kw">impl </span>FnOnce(<span class="kw-2">&mut </span>SourceChangeBuilder), |
| <a href=#188 id=188 data-nosnippet>188</a> ) -> <span class="prelude-ty">Option</span><()> { |
| <a href=#189 id=189 data-nosnippet>189</a> <span class="kw">let </span><span class="kw-2">mut </span>f = <span class="prelude-val">Some</span>(f); |
| <a href=#190 id=190 data-nosnippet>190</a> <span class="self">self</span>.add_impl(<span class="prelude-val">None</span>, id, label.into(), target, <span class="kw-2">&mut </span>|it| f.take().unwrap()(it)) |
| <a href=#191 id=191 data-nosnippet>191</a> } |
| <a href=#192 id=192 data-nosnippet>192</a> |
| <a href=#193 id=193 data-nosnippet>193</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>add_group( |
| <a href=#194 id=194 data-nosnippet>194</a> <span class="kw-2">&mut </span><span class="self">self</span>, |
| <a href=#195 id=195 data-nosnippet>195</a> group: <span class="kw-2">&</span>GroupLabel, |
| <a href=#196 id=196 data-nosnippet>196</a> id: AssistId, |
| <a href=#197 id=197 data-nosnippet>197</a> label: <span class="kw">impl </span>Into<String>, |
| <a href=#198 id=198 data-nosnippet>198</a> target: TextRange, |
| <a href=#199 id=199 data-nosnippet>199</a> f: <span class="kw">impl </span>FnOnce(<span class="kw-2">&mut </span>SourceChangeBuilder), |
| <a href=#200 id=200 data-nosnippet>200</a> ) -> <span class="prelude-ty">Option</span><()> { |
| <a href=#201 id=201 data-nosnippet>201</a> <span class="kw">let </span><span class="kw-2">mut </span>f = <span class="prelude-val">Some</span>(f); |
| <a href=#202 id=202 data-nosnippet>202</a> <span class="self">self</span>.add_impl(<span class="prelude-val">Some</span>(group), id, label.into(), target, <span class="kw-2">&mut </span>|it| f.take().unwrap()(it)) |
| <a href=#203 id=203 data-nosnippet>203</a> } |
| <a href=#204 id=204 data-nosnippet>204</a> |
| <a href=#205 id=205 data-nosnippet>205</a> <span class="kw">fn </span>add_impl( |
| <a href=#206 id=206 data-nosnippet>206</a> <span class="kw-2">&mut </span><span class="self">self</span>, |
| <a href=#207 id=207 data-nosnippet>207</a> group: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>GroupLabel>, |
| <a href=#208 id=208 data-nosnippet>208</a> id: AssistId, |
| <a href=#209 id=209 data-nosnippet>209</a> label: String, |
| <a href=#210 id=210 data-nosnippet>210</a> target: TextRange, |
| <a href=#211 id=211 data-nosnippet>211</a> f: <span class="kw-2">&mut </span><span class="kw">dyn </span>FnMut(<span class="kw-2">&mut </span>SourceChangeBuilder), |
| <a href=#212 id=212 data-nosnippet>212</a> ) -> <span class="prelude-ty">Option</span><()> { |
| <a href=#213 id=213 data-nosnippet>213</a> <span class="kw">if </span>!<span class="self">self</span>.is_allowed(<span class="kw-2">&</span>id) { |
| <a href=#214 id=214 data-nosnippet>214</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <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> <span class="kw">let </span><span class="kw-2">mut </span>command = <span class="prelude-val">None</span>; |
| <a href=#218 id=218 data-nosnippet>218</a> <span class="kw">let </span>source_change = <span class="kw">if </span><span class="self">self</span>.resolve.should_resolve(<span class="kw-2">&</span>id) { |
| <a href=#219 id=219 data-nosnippet>219</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = SourceChangeBuilder::new(<span class="self">self</span>.file); |
| <a href=#220 id=220 data-nosnippet>220</a> f(<span class="kw-2">&mut </span>builder); |
| <a href=#221 id=221 data-nosnippet>221</a> command = builder.command.take(); |
| <a href=#222 id=222 data-nosnippet>222</a> <span class="prelude-val">Some</span>(builder.finish()) |
| <a href=#223 id=223 data-nosnippet>223</a> } <span class="kw">else </span>{ |
| <a href=#224 id=224 data-nosnippet>224</a> <span class="prelude-val">None |
| <a href=#225 id=225 data-nosnippet>225</a> </span>}; |
| <a href=#226 id=226 data-nosnippet>226</a> |
| <a href=#227 id=227 data-nosnippet>227</a> <span class="kw">let </span>label = Label::new(label); |
| <a href=#228 id=228 data-nosnippet>228</a> <span class="kw">let </span>group = group.cloned(); |
| <a href=#229 id=229 data-nosnippet>229</a> <span class="self">self</span>.buf.push(Assist { id, label, group, target, source_change, command }); |
| <a href=#230 id=230 data-nosnippet>230</a> <span class="prelude-val">Some</span>(()) |
| <a href=#231 id=231 data-nosnippet>231</a> } |
| <a href=#232 id=232 data-nosnippet>232</a> |
| <a href=#233 id=233 data-nosnippet>233</a> <span class="kw">fn </span>is_allowed(<span class="kw-2">&</span><span class="self">self</span>, id: <span class="kw-2">&</span>AssistId) -> bool { |
| <a href=#234 id=234 data-nosnippet>234</a> <span class="kw">match </span><span class="kw-2">&</span><span class="self">self</span>.allowed { |
| <a href=#235 id=235 data-nosnippet>235</a> <span class="prelude-val">Some</span>(allowed) => allowed.iter().any(|kind| kind.contains(id.<span class="number">1</span>)), |
| <a href=#236 id=236 data-nosnippet>236</a> <span class="prelude-val">None </span>=> <span class="bool-val">true</span>, |
| <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>}</code></pre></div></section></main></body></html> |
