| <!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/hir-expand/src/mod_path.rs`."><title>mod_path.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-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="hir_expand" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0 (ded5c06cf 2025-12-08)" data-channel="1.92.0" data-search-js="search-d69d8955.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-ce535bd0.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">hir_expand/</div>mod_path.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">//! A lowering for `use`-paths (more generally, paths without angle-bracketed segments). |
| <a href=#2 id=2 data-nosnippet>2</a> |
| <a href=#3 id=3 data-nosnippet>3</a></span><span class="kw">use </span>std::{ |
| <a href=#4 id=4 data-nosnippet>4</a> fmt::{<span class="self">self</span>, Display <span class="kw">as _</span>}, |
| <a href=#5 id=5 data-nosnippet>5</a> iter::{<span class="self">self</span>, Peekable}, |
| <a href=#6 id=6 data-nosnippet>6</a>}; |
| <a href=#7 id=7 data-nosnippet>7</a> |
| <a href=#8 id=8 data-nosnippet>8</a><span class="kw">use crate</span>::{ |
| <a href=#9 id=9 data-nosnippet>9</a> db::ExpandDatabase, |
| <a href=#10 id=10 data-nosnippet>10</a> hygiene::Transparency, |
| <a href=#11 id=11 data-nosnippet>11</a> name::{AsName, Name}, |
| <a href=#12 id=12 data-nosnippet>12</a> tt, |
| <a href=#13 id=13 data-nosnippet>13</a>}; |
| <a href=#14 id=14 data-nosnippet>14</a><span class="kw">use </span>base_db::Crate; |
| <a href=#15 id=15 data-nosnippet>15</a><span class="kw">use </span>intern::{Symbol, sym}; |
| <a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>parser::T; |
| <a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>smallvec::SmallVec; |
| <a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>span::{Edition, SyntaxContext}; |
| <a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>syntax::{AstNode, SyntaxToken, ast}; |
| <a href=#20 id=20 data-nosnippet>20</a> |
| <a href=#21 id=21 data-nosnippet>21</a><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] |
| <a href=#22 id=22 data-nosnippet>22</a></span><span class="kw">pub struct </span>ModPath { |
| <a href=#23 id=23 data-nosnippet>23</a> <span class="kw">pub </span>kind: PathKind, |
| <a href=#24 id=24 data-nosnippet>24</a> segments: SmallVec<[Name; <span class="number">1</span>]>, |
| <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="attr">#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] |
| <a href=#28 id=28 data-nosnippet>28</a></span><span class="kw">pub enum </span>PathKind { |
| <a href=#29 id=29 data-nosnippet>29</a> Plain, |
| <a href=#30 id=30 data-nosnippet>30</a> <span class="doccomment">/// `self::` is `Super(0)` |
| <a href=#31 id=31 data-nosnippet>31</a> </span>Super(u8), |
| <a href=#32 id=32 data-nosnippet>32</a> Crate, |
| <a href=#33 id=33 data-nosnippet>33</a> <span class="doccomment">/// Absolute path (::foo) |
| <a href=#34 id=34 data-nosnippet>34</a> </span>Abs, |
| <a href=#35 id=35 data-nosnippet>35</a> <span class="comment">// FIXME: Can we remove this somehow? |
| <a href=#36 id=36 data-nosnippet>36</a> </span><span class="doccomment">/// `$crate` from macro expansion |
| <a href=#37 id=37 data-nosnippet>37</a> </span>DollarCrate(Crate), |
| <a href=#38 id=38 data-nosnippet>38</a>} |
| <a href=#39 id=39 data-nosnippet>39</a> |
| <a href=#40 id=40 data-nosnippet>40</a><span class="kw">impl </span>PathKind { |
| <a href=#41 id=41 data-nosnippet>41</a> <span class="kw">pub const </span>SELF: PathKind = PathKind::Super(<span class="number">0</span>); |
| <a href=#42 id=42 data-nosnippet>42</a>} |
| <a href=#43 id=43 data-nosnippet>43</a> |
| <a href=#44 id=44 data-nosnippet>44</a><span class="kw">impl </span>ModPath { |
| <a href=#45 id=45 data-nosnippet>45</a> <span class="kw">pub fn </span>from_src( |
| <a href=#46 id=46 data-nosnippet>46</a> db: <span class="kw-2">&</span><span class="kw">dyn </span>ExpandDatabase, |
| <a href=#47 id=47 data-nosnippet>47</a> path: ast::Path, |
| <a href=#48 id=48 data-nosnippet>48</a> span_for_range: <span class="kw-2">&mut </span><span class="kw">dyn </span>FnMut(::tt::TextRange) -> SyntaxContext, |
| <a href=#49 id=49 data-nosnippet>49</a> ) -> <span class="prelude-ty">Option</span><ModPath> { |
| <a href=#50 id=50 data-nosnippet>50</a> convert_path(db, path, span_for_range) |
| <a href=#51 id=51 data-nosnippet>51</a> } |
| <a href=#52 id=52 data-nosnippet>52</a> |
| <a href=#53 id=53 data-nosnippet>53</a> <span class="kw">pub fn </span>from_tt(db: <span class="kw-2">&</span><span class="kw">dyn </span>ExpandDatabase, tt: tt::TokenTreesView<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Option</span><ModPath> { |
| <a href=#54 id=54 data-nosnippet>54</a> convert_path_tt(db, tt) |
| <a href=#55 id=55 data-nosnippet>55</a> } |
| <a href=#56 id=56 data-nosnippet>56</a> |
| <a href=#57 id=57 data-nosnippet>57</a> <span class="kw">pub fn </span>from_segments(kind: PathKind, segments: <span class="kw">impl </span>IntoIterator<Item = Name>) -> ModPath { |
| <a href=#58 id=58 data-nosnippet>58</a> <span class="kw">let </span><span class="kw-2">mut </span>segments: SmallVec<<span class="kw">_</span>> = segments.into_iter().collect(); |
| <a href=#59 id=59 data-nosnippet>59</a> segments.shrink_to_fit(); |
| <a href=#60 id=60 data-nosnippet>60</a> ModPath { kind, segments } |
| <a href=#61 id=61 data-nosnippet>61</a> } |
| <a href=#62 id=62 data-nosnippet>62</a> |
| <a href=#63 id=63 data-nosnippet>63</a> <span class="doccomment">/// Creates a `ModPath` from a `PathKind`, with no extra path segments. |
| <a href=#64 id=64 data-nosnippet>64</a> </span><span class="kw">pub const fn </span>from_kind(kind: PathKind) -> ModPath { |
| <a href=#65 id=65 data-nosnippet>65</a> ModPath { kind, segments: SmallVec::new_const() } |
| <a href=#66 id=66 data-nosnippet>66</a> } |
| <a href=#67 id=67 data-nosnippet>67</a> |
| <a href=#68 id=68 data-nosnippet>68</a> <span class="kw">pub fn </span>from_tokens( |
| <a href=#69 id=69 data-nosnippet>69</a> db: <span class="kw-2">&</span><span class="kw">dyn </span>ExpandDatabase, |
| <a href=#70 id=70 data-nosnippet>70</a> span_for_range: <span class="kw-2">&mut </span><span class="kw">dyn </span>FnMut(::tt::TextRange) -> SyntaxContext, |
| <a href=#71 id=71 data-nosnippet>71</a> is_abs: bool, |
| <a href=#72 id=72 data-nosnippet>72</a> segments: <span class="kw">impl </span>Iterator<Item = SyntaxToken>, |
| <a href=#73 id=73 data-nosnippet>73</a> ) -> <span class="prelude-ty">Option</span><ModPath> { |
| <a href=#74 id=74 data-nosnippet>74</a> <span class="kw">let </span><span class="kw-2">mut </span>segments = segments.peekable(); |
| <a href=#75 id=75 data-nosnippet>75</a> <span class="kw">let </span><span class="kw-2">mut </span>result = SmallVec::new_const(); |
| <a href=#76 id=76 data-nosnippet>76</a> <span class="kw">let </span>path_kind = <span class="kw">if </span>is_abs { |
| <a href=#77 id=77 data-nosnippet>77</a> PathKind::Abs |
| <a href=#78 id=78 data-nosnippet>78</a> } <span class="kw">else </span>{ |
| <a href=#79 id=79 data-nosnippet>79</a> <span class="kw">let </span>first = segments.next()<span class="question-mark">?</span>; |
| <a href=#80 id=80 data-nosnippet>80</a> <span class="kw">match </span>first.kind() { |
| <a href=#81 id=81 data-nosnippet>81</a> <span class="macro">T!</span>[<span class="kw">crate</span>] => PathKind::Crate, |
| <a href=#82 id=82 data-nosnippet>82</a> <span class="macro">T!</span>[<span class="self">self</span>] => PathKind::Super(handle_super(<span class="kw-2">&mut </span>segments)), |
| <a href=#83 id=83 data-nosnippet>83</a> <span class="macro">T!</span>[<span class="kw">super</span>] => PathKind::Super(<span class="number">1 </span>+ handle_super(<span class="kw-2">&mut </span>segments)), |
| <a href=#84 id=84 data-nosnippet>84</a> <span class="macro">T!</span>[ident] => { |
| <a href=#85 id=85 data-nosnippet>85</a> <span class="kw">let </span>first_text = first.text(); |
| <a href=#86 id=86 data-nosnippet>86</a> <span class="kw">if </span>first_text == <span class="string">"$crate" </span>{ |
| <a href=#87 id=87 data-nosnippet>87</a> <span class="kw">let </span>ctxt = span_for_range(first.text_range()); |
| <a href=#88 id=88 data-nosnippet>88</a> resolve_crate_root(db, ctxt) |
| <a href=#89 id=89 data-nosnippet>89</a> .map(PathKind::DollarCrate) |
| <a href=#90 id=90 data-nosnippet>90</a> .unwrap_or(PathKind::Crate) |
| <a href=#91 id=91 data-nosnippet>91</a> } <span class="kw">else </span>{ |
| <a href=#92 id=92 data-nosnippet>92</a> result.push(Name::new_symbol_root(Symbol::intern(first_text))); |
| <a href=#93 id=93 data-nosnippet>93</a> PathKind::Plain |
| <a href=#94 id=94 data-nosnippet>94</a> } |
| <a href=#95 id=95 data-nosnippet>95</a> } |
| <a href=#96 id=96 data-nosnippet>96</a> <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#97 id=97 data-nosnippet>97</a> } |
| <a href=#98 id=98 data-nosnippet>98</a> }; |
| <a href=#99 id=99 data-nosnippet>99</a> <span class="kw">for </span>segment <span class="kw">in </span>segments { |
| <a href=#100 id=100 data-nosnippet>100</a> <span class="kw">if </span>segment.kind() != <span class="macro">T!</span>[ident] { |
| <a href=#101 id=101 data-nosnippet>101</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#102 id=102 data-nosnippet>102</a> } |
| <a href=#103 id=103 data-nosnippet>103</a> result.push(Name::new_symbol_root(Symbol::intern(segment.text()))); |
| <a href=#104 id=104 data-nosnippet>104</a> } |
| <a href=#105 id=105 data-nosnippet>105</a> <span class="kw">if </span>result.is_empty() { |
| <a href=#106 id=106 data-nosnippet>106</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#107 id=107 data-nosnippet>107</a> } |
| <a href=#108 id=108 data-nosnippet>108</a> result.shrink_to_fit(); |
| <a href=#109 id=109 data-nosnippet>109</a> <span class="kw">return </span><span class="prelude-val">Some</span>(ModPath { kind: path_kind, segments: result }); |
| <a href=#110 id=110 data-nosnippet>110</a> |
| <a href=#111 id=111 data-nosnippet>111</a> <span class="kw">fn </span>handle_super(segments: <span class="kw-2">&mut </span>Peekable<<span class="kw">impl </span>Iterator<Item = SyntaxToken>>) -> u8 { |
| <a href=#112 id=112 data-nosnippet>112</a> <span class="kw">let </span><span class="kw-2">mut </span>result = <span class="number">0</span>; |
| <a href=#113 id=113 data-nosnippet>113</a> <span class="kw">while </span>segments.next_if(|it| it.kind() == <span class="macro">T!</span>[<span class="kw">super</span>]).is_some() { |
| <a href=#114 id=114 data-nosnippet>114</a> result += <span class="number">1</span>; |
| <a href=#115 id=115 data-nosnippet>115</a> } |
| <a href=#116 id=116 data-nosnippet>116</a> result |
| <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> |
| <a href=#120 id=120 data-nosnippet>120</a> <span class="kw">pub fn </span>segments(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[Name] { |
| <a href=#121 id=121 data-nosnippet>121</a> <span class="kw-2">&</span><span class="self">self</span>.segments |
| <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="kw">pub fn </span>push_segment(<span class="kw-2">&mut </span><span class="self">self</span>, segment: Name) { |
| <a href=#125 id=125 data-nosnippet>125</a> <span class="self">self</span>.segments.push(segment); |
| <a href=#126 id=126 data-nosnippet>126</a> } |
| <a href=#127 id=127 data-nosnippet>127</a> |
| <a href=#128 id=128 data-nosnippet>128</a> <span class="kw">pub fn </span>pop_segment(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Name> { |
| <a href=#129 id=129 data-nosnippet>129</a> <span class="self">self</span>.segments.pop() |
| <a href=#130 id=130 data-nosnippet>130</a> } |
| <a href=#131 id=131 data-nosnippet>131</a> |
| <a href=#132 id=132 data-nosnippet>132</a> <span class="doccomment">/// Returns the number of segments in the path (counting special segments like `$crate` and |
| <a href=#133 id=133 data-nosnippet>133</a> /// `super`). |
| <a href=#134 id=134 data-nosnippet>134</a> </span><span class="kw">pub fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| <a href=#135 id=135 data-nosnippet>135</a> <span class="self">self</span>.segments.len() |
| <a href=#136 id=136 data-nosnippet>136</a> + <span class="kw">match </span><span class="self">self</span>.kind { |
| <a href=#137 id=137 data-nosnippet>137</a> PathKind::Plain => <span class="number">0</span>, |
| <a href=#138 id=138 data-nosnippet>138</a> PathKind::Super(i) => i <span class="kw">as </span>usize, |
| <a href=#139 id=139 data-nosnippet>139</a> PathKind::Crate => <span class="number">1</span>, |
| <a href=#140 id=140 data-nosnippet>140</a> PathKind::Abs => <span class="number">0</span>, |
| <a href=#141 id=141 data-nosnippet>141</a> PathKind::DollarCrate(<span class="kw">_</span>) => <span class="number">1</span>, |
| <a href=#142 id=142 data-nosnippet>142</a> } |
| <a href=#143 id=143 data-nosnippet>143</a> } |
| <a href=#144 id=144 data-nosnippet>144</a> |
| <a href=#145 id=145 data-nosnippet>145</a> <span class="kw">pub fn </span>textual_len(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| <a href=#146 id=146 data-nosnippet>146</a> <span class="kw">let </span>base = <span class="kw">match </span><span class="self">self</span>.kind { |
| <a href=#147 id=147 data-nosnippet>147</a> PathKind::Plain => <span class="number">0</span>, |
| <a href=#148 id=148 data-nosnippet>148</a> PathKind::SELF => <span class="string">"self"</span>.len(), |
| <a href=#149 id=149 data-nosnippet>149</a> PathKind::Super(i) => <span class="string">"super"</span>.len() * i <span class="kw">as </span>usize, |
| <a href=#150 id=150 data-nosnippet>150</a> PathKind::Crate => <span class="string">"crate"</span>.len(), |
| <a href=#151 id=151 data-nosnippet>151</a> PathKind::Abs => <span class="number">0</span>, |
| <a href=#152 id=152 data-nosnippet>152</a> PathKind::DollarCrate(<span class="kw">_</span>) => <span class="string">"$crate"</span>.len(), |
| <a href=#153 id=153 data-nosnippet>153</a> }; |
| <a href=#154 id=154 data-nosnippet>154</a> <span class="self">self</span>.segments().iter().map(|segment| segment.as_str().len()).fold(base, core::ops::Add::add) |
| <a href=#155 id=155 data-nosnippet>155</a> } |
| <a href=#156 id=156 data-nosnippet>156</a> |
| <a href=#157 id=157 data-nosnippet>157</a> <span class="kw">pub fn </span>is_ident(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#158 id=158 data-nosnippet>158</a> <span class="self">self</span>.as_ident().is_some() |
| <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> <span class="kw">pub fn </span>is_self(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#162 id=162 data-nosnippet>162</a> <span class="self">self</span>.kind == PathKind::SELF && <span class="self">self</span>.segments.is_empty() |
| <a href=#163 id=163 data-nosnippet>163</a> } |
| <a href=#164 id=164 data-nosnippet>164</a> |
| <a href=#165 id=165 data-nosnippet>165</a> <span class="attr">#[allow(non_snake_case)] |
| <a href=#166 id=166 data-nosnippet>166</a> </span><span class="kw">pub fn </span>is_Self(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#167 id=167 data-nosnippet>167</a> <span class="self">self</span>.kind == PathKind::Plain && <span class="macro">matches!</span>(<span class="kw-2">&*</span><span class="self">self</span>.segments, [name] <span class="kw">if </span><span class="kw-2">*</span>name == sym::Self_) |
| <a href=#168 id=168 data-nosnippet>168</a> } |
| <a href=#169 id=169 data-nosnippet>169</a> |
| <a href=#170 id=170 data-nosnippet>170</a> <span class="doccomment">/// If this path is a single identifier, like `foo`, return its name. |
| <a href=#171 id=171 data-nosnippet>171</a> </span><span class="kw">pub fn </span>as_ident(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>Name> { |
| <a href=#172 id=172 data-nosnippet>172</a> <span class="kw">if </span><span class="self">self</span>.kind != PathKind::Plain { |
| <a href=#173 id=173 data-nosnippet>173</a> <span class="kw">return </span><span class="prelude-val">None</span>; |
| <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> <span class="kw">match </span><span class="kw-2">&*</span><span class="self">self</span>.segments { |
| <a href=#177 id=177 data-nosnippet>177</a> [name] => <span class="prelude-val">Some</span>(name), |
| <a href=#178 id=178 data-nosnippet>178</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#179 id=179 data-nosnippet>179</a> } |
| <a href=#180 id=180 data-nosnippet>180</a> } |
| <a href=#181 id=181 data-nosnippet>181</a> <span class="kw">pub fn </span>display_verbatim<<span class="lifetime">'a</span>>( |
| <a href=#182 id=182 data-nosnippet>182</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#183 id=183 data-nosnippet>183</a> db: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw">dyn </span><span class="kw">crate</span>::db::ExpandDatabase, |
| <a href=#184 id=184 data-nosnippet>184</a> ) -> <span class="kw">impl </span>fmt::Display + <span class="lifetime">'a </span>{ |
| <a href=#185 id=185 data-nosnippet>185</a> Display { db, path: <span class="self">self</span>, edition: <span class="prelude-val">None </span>} |
| <a href=#186 id=186 data-nosnippet>186</a> } |
| <a href=#187 id=187 data-nosnippet>187</a> |
| <a href=#188 id=188 data-nosnippet>188</a> <span class="kw">pub fn </span>display<<span class="lifetime">'a</span>>( |
| <a href=#189 id=189 data-nosnippet>189</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#190 id=190 data-nosnippet>190</a> db: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw">dyn </span><span class="kw">crate</span>::db::ExpandDatabase, |
| <a href=#191 id=191 data-nosnippet>191</a> edition: Edition, |
| <a href=#192 id=192 data-nosnippet>192</a> ) -> <span class="kw">impl </span>fmt::Display + <span class="lifetime">'a </span>{ |
| <a href=#193 id=193 data-nosnippet>193</a> Display { db, path: <span class="self">self</span>, edition: <span class="prelude-val">Some</span>(edition) } |
| <a href=#194 id=194 data-nosnippet>194</a> } |
| <a href=#195 id=195 data-nosnippet>195</a>} |
| <a href=#196 id=196 data-nosnippet>196</a> |
| <a href=#197 id=197 data-nosnippet>197</a><span class="kw">impl </span>Extend<Name> <span class="kw">for </span>ModPath { |
| <a href=#198 id=198 data-nosnippet>198</a> <span class="kw">fn </span>extend<T: IntoIterator<Item = Name>>(<span class="kw-2">&mut </span><span class="self">self</span>, iter: T) { |
| <a href=#199 id=199 data-nosnippet>199</a> <span class="self">self</span>.segments.extend(iter); |
| <a href=#200 id=200 data-nosnippet>200</a> } |
| <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><span class="kw">struct </span>Display<<span class="lifetime">'a</span>> { |
| <a href=#204 id=204 data-nosnippet>204</a> db: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw">dyn </span>ExpandDatabase, |
| <a href=#205 id=205 data-nosnippet>205</a> path: <span class="kw-2">&</span><span class="lifetime">'a </span>ModPath, |
| <a href=#206 id=206 data-nosnippet>206</a> edition: <span class="prelude-ty">Option</span><Edition>, |
| <a href=#207 id=207 data-nosnippet>207</a>} |
| <a href=#208 id=208 data-nosnippet>208</a> |
| <a href=#209 id=209 data-nosnippet>209</a><span class="kw">impl </span>fmt::Display <span class="kw">for </span>Display<<span class="lifetime">'_</span>> { |
| <a href=#210 id=210 data-nosnippet>210</a> <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <a href=#211 id=211 data-nosnippet>211</a> display_fmt_path(<span class="self">self</span>.db, <span class="self">self</span>.path, f, <span class="self">self</span>.edition) |
| <a href=#212 id=212 data-nosnippet>212</a> } |
| <a href=#213 id=213 data-nosnippet>213</a>} |
| <a href=#214 id=214 data-nosnippet>214</a> |
| <a href=#215 id=215 data-nosnippet>215</a><span class="kw">impl </span>From<Name> <span class="kw">for </span>ModPath { |
| <a href=#216 id=216 data-nosnippet>216</a> <span class="kw">fn </span>from(name: Name) -> ModPath { |
| <a href=#217 id=217 data-nosnippet>217</a> ModPath::from_segments(PathKind::Plain, iter::once(name)) |
| <a href=#218 id=218 data-nosnippet>218</a> } |
| <a href=#219 id=219 data-nosnippet>219</a>} |
| <a href=#220 id=220 data-nosnippet>220</a> |
| <a href=#221 id=221 data-nosnippet>221</a><span class="kw">fn </span>display_fmt_path( |
| <a href=#222 id=222 data-nosnippet>222</a> db: <span class="kw-2">&</span><span class="kw">dyn </span>ExpandDatabase, |
| <a href=#223 id=223 data-nosnippet>223</a> path: <span class="kw-2">&</span>ModPath, |
| <a href=#224 id=224 data-nosnippet>224</a> f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>, |
| <a href=#225 id=225 data-nosnippet>225</a> edition: <span class="prelude-ty">Option</span><Edition>, |
| <a href=#226 id=226 data-nosnippet>226</a>) -> fmt::Result { |
| <a href=#227 id=227 data-nosnippet>227</a> <span class="kw">let </span><span class="kw-2">mut </span>first_segment = <span class="bool-val">true</span>; |
| <a href=#228 id=228 data-nosnippet>228</a> <span class="kw">let </span><span class="kw-2">mut </span>add_segment = |s| -> fmt::Result { |
| <a href=#229 id=229 data-nosnippet>229</a> <span class="kw">if </span>!first_segment { |
| <a href=#230 id=230 data-nosnippet>230</a> f.write_str(<span class="string">"::"</span>)<span class="question-mark">?</span>; |
| <a href=#231 id=231 data-nosnippet>231</a> } |
| <a href=#232 id=232 data-nosnippet>232</a> first_segment = <span class="bool-val">false</span>; |
| <a href=#233 id=233 data-nosnippet>233</a> f.write_str(s)<span class="question-mark">?</span>; |
| <a href=#234 id=234 data-nosnippet>234</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#235 id=235 data-nosnippet>235</a> }; |
| <a href=#236 id=236 data-nosnippet>236</a> <span class="kw">match </span>path.kind { |
| <a href=#237 id=237 data-nosnippet>237</a> PathKind::Plain => {} |
| <a href=#238 id=238 data-nosnippet>238</a> PathKind::SELF => add_segment(<span class="string">"self"</span>)<span class="question-mark">?</span>, |
| <a href=#239 id=239 data-nosnippet>239</a> PathKind::Super(n) => { |
| <a href=#240 id=240 data-nosnippet>240</a> <span class="kw">for _ in </span><span class="number">0</span>..n { |
| <a href=#241 id=241 data-nosnippet>241</a> add_segment(<span class="string">"super"</span>)<span class="question-mark">?</span>; |
| <a href=#242 id=242 data-nosnippet>242</a> } |
| <a href=#243 id=243 data-nosnippet>243</a> } |
| <a href=#244 id=244 data-nosnippet>244</a> PathKind::Crate => add_segment(<span class="string">"crate"</span>)<span class="question-mark">?</span>, |
| <a href=#245 id=245 data-nosnippet>245</a> PathKind::Abs => add_segment(<span class="string">""</span>)<span class="question-mark">?</span>, |
| <a href=#246 id=246 data-nosnippet>246</a> PathKind::DollarCrate(<span class="kw">_</span>) => add_segment(<span class="string">"$crate"</span>)<span class="question-mark">?</span>, |
| <a href=#247 id=247 data-nosnippet>247</a> } |
| <a href=#248 id=248 data-nosnippet>248</a> <span class="kw">for </span>segment <span class="kw">in </span><span class="kw-2">&</span>path.segments { |
| <a href=#249 id=249 data-nosnippet>249</a> <span class="kw">if </span>!first_segment { |
| <a href=#250 id=250 data-nosnippet>250</a> f.write_str(<span class="string">"::"</span>)<span class="question-mark">?</span>; |
| <a href=#251 id=251 data-nosnippet>251</a> } |
| <a href=#252 id=252 data-nosnippet>252</a> first_segment = <span class="bool-val">false</span>; |
| <a href=#253 id=253 data-nosnippet>253</a> <span class="kw">match </span>edition { |
| <a href=#254 id=254 data-nosnippet>254</a> <span class="prelude-val">Some</span>(edition) => segment.display(db, edition).fmt(f)<span class="question-mark">?</span>, |
| <a href=#255 id=255 data-nosnippet>255</a> <span class="prelude-val">None </span>=> fmt::Display::fmt(segment.as_str(), f)<span class="question-mark">?</span>, |
| <a href=#256 id=256 data-nosnippet>256</a> }; |
| <a href=#257 id=257 data-nosnippet>257</a> } |
| <a href=#258 id=258 data-nosnippet>258</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#259 id=259 data-nosnippet>259</a>} |
| <a href=#260 id=260 data-nosnippet>260</a> |
| <a href=#261 id=261 data-nosnippet>261</a><span class="kw">fn </span>convert_path( |
| <a href=#262 id=262 data-nosnippet>262</a> db: <span class="kw-2">&</span><span class="kw">dyn </span>ExpandDatabase, |
| <a href=#263 id=263 data-nosnippet>263</a> path: ast::Path, |
| <a href=#264 id=264 data-nosnippet>264</a> span_for_range: <span class="kw-2">&mut </span><span class="kw">dyn </span>FnMut(::tt::TextRange) -> SyntaxContext, |
| <a href=#265 id=265 data-nosnippet>265</a>) -> <span class="prelude-ty">Option</span><ModPath> { |
| <a href=#266 id=266 data-nosnippet>266</a> <span class="kw">let </span><span class="kw-2">mut </span>segments = path.segments(); |
| <a href=#267 id=267 data-nosnippet>267</a> |
| <a href=#268 id=268 data-nosnippet>268</a> <span class="kw">let </span>segment = <span class="kw-2">&</span>segments.next()<span class="question-mark">?</span>; |
| <a href=#269 id=269 data-nosnippet>269</a> <span class="kw">let </span>handle_super_kw = <span class="kw-2">&mut </span>|init_deg| { |
| <a href=#270 id=270 data-nosnippet>270</a> <span class="kw">let </span><span class="kw-2">mut </span>deg = init_deg; |
| <a href=#271 id=271 data-nosnippet>271</a> <span class="kw">let </span><span class="kw-2">mut </span>next_segment = <span class="prelude-val">None</span>; |
| <a href=#272 id=272 data-nosnippet>272</a> <span class="kw">for </span>segment <span class="kw">in </span>segments.by_ref() { |
| <a href=#273 id=273 data-nosnippet>273</a> <span class="kw">match </span>segment.kind()<span class="question-mark">? </span>{ |
| <a href=#274 id=274 data-nosnippet>274</a> ast::PathSegmentKind::SuperKw => deg += <span class="number">1</span>, |
| <a href=#275 id=275 data-nosnippet>275</a> ast::PathSegmentKind::Name(name) => { |
| <a href=#276 id=276 data-nosnippet>276</a> next_segment = <span class="prelude-val">Some</span>(name.as_name()); |
| <a href=#277 id=277 data-nosnippet>277</a> <span class="kw">break</span>; |
| <a href=#278 id=278 data-nosnippet>278</a> } |
| <a href=#279 id=279 data-nosnippet>279</a> ast::PathSegmentKind::Type { .. } |
| <a href=#280 id=280 data-nosnippet>280</a> | ast::PathSegmentKind::SelfTypeKw |
| <a href=#281 id=281 data-nosnippet>281</a> | ast::PathSegmentKind::SelfKw |
| <a href=#282 id=282 data-nosnippet>282</a> | ast::PathSegmentKind::CrateKw => <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#283 id=283 data-nosnippet>283</a> } |
| <a href=#284 id=284 data-nosnippet>284</a> } |
| <a href=#285 id=285 data-nosnippet>285</a> |
| <a href=#286 id=286 data-nosnippet>286</a> <span class="prelude-val">Some</span>(ModPath::from_segments(PathKind::Super(deg), next_segment)) |
| <a href=#287 id=287 data-nosnippet>287</a> }; |
| <a href=#288 id=288 data-nosnippet>288</a> |
| <a href=#289 id=289 data-nosnippet>289</a> <span class="kw">let </span><span class="kw-2">mut </span>mod_path = <span class="kw">match </span>segment.kind()<span class="question-mark">? </span>{ |
| <a href=#290 id=290 data-nosnippet>290</a> ast::PathSegmentKind::Name(name_ref) => { |
| <a href=#291 id=291 data-nosnippet>291</a> <span class="kw">if </span>name_ref.text() == <span class="string">"$crate" </span>{ |
| <a href=#292 id=292 data-nosnippet>292</a> ModPath::from_kind( |
| <a href=#293 id=293 data-nosnippet>293</a> resolve_crate_root(db, span_for_range(name_ref.syntax().text_range())) |
| <a href=#294 id=294 data-nosnippet>294</a> .map(PathKind::DollarCrate) |
| <a href=#295 id=295 data-nosnippet>295</a> .unwrap_or(PathKind::Crate), |
| <a href=#296 id=296 data-nosnippet>296</a> ) |
| <a href=#297 id=297 data-nosnippet>297</a> } <span class="kw">else </span>{ |
| <a href=#298 id=298 data-nosnippet>298</a> <span class="kw">let </span><span class="kw-2">mut </span>res = ModPath::from_kind( |
| <a href=#299 id=299 data-nosnippet>299</a> segment.coloncolon_token().map_or(PathKind::Plain, |<span class="kw">_</span>| PathKind::Abs), |
| <a href=#300 id=300 data-nosnippet>300</a> ); |
| <a href=#301 id=301 data-nosnippet>301</a> res.segments.push(name_ref.as_name()); |
| <a href=#302 id=302 data-nosnippet>302</a> res |
| <a href=#303 id=303 data-nosnippet>303</a> } |
| <a href=#304 id=304 data-nosnippet>304</a> } |
| <a href=#305 id=305 data-nosnippet>305</a> ast::PathSegmentKind::SelfTypeKw => { |
| <a href=#306 id=306 data-nosnippet>306</a> ModPath::from_segments(PathKind::Plain, <span class="prelude-val">Some</span>(Name::new_symbol_root(sym::Self_))) |
| <a href=#307 id=307 data-nosnippet>307</a> } |
| <a href=#308 id=308 data-nosnippet>308</a> ast::PathSegmentKind::CrateKw => ModPath::from_segments(PathKind::Crate, iter::empty()), |
| <a href=#309 id=309 data-nosnippet>309</a> ast::PathSegmentKind::SelfKw => handle_super_kw(<span class="number">0</span>)<span class="question-mark">?</span>, |
| <a href=#310 id=310 data-nosnippet>310</a> ast::PathSegmentKind::SuperKw => handle_super_kw(<span class="number">1</span>)<span class="question-mark">?</span>, |
| <a href=#311 id=311 data-nosnippet>311</a> ast::PathSegmentKind::Type { .. } => { |
| <a href=#312 id=312 data-nosnippet>312</a> <span class="comment">// not allowed in imports |
| <a href=#313 id=313 data-nosnippet>313</a> </span><span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#314 id=314 data-nosnippet>314</a> } |
| <a href=#315 id=315 data-nosnippet>315</a> }; |
| <a href=#316 id=316 data-nosnippet>316</a> |
| <a href=#317 id=317 data-nosnippet>317</a> <span class="kw">for </span>segment <span class="kw">in </span>segments { |
| <a href=#318 id=318 data-nosnippet>318</a> <span class="kw">let </span>name = <span class="kw">match </span>segment.kind()<span class="question-mark">? </span>{ |
| <a href=#319 id=319 data-nosnippet>319</a> ast::PathSegmentKind::Name(name) => name.as_name(), |
| <a href=#320 id=320 data-nosnippet>320</a> <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#321 id=321 data-nosnippet>321</a> }; |
| <a href=#322 id=322 data-nosnippet>322</a> mod_path.segments.push(name); |
| <a href=#323 id=323 data-nosnippet>323</a> } |
| <a href=#324 id=324 data-nosnippet>324</a> |
| <a href=#325 id=325 data-nosnippet>325</a> <span class="comment">// handle local_inner_macros : |
| <a href=#326 id=326 data-nosnippet>326</a> // Basically, even in rustc it is quite hacky: |
| <a href=#327 id=327 data-nosnippet>327</a> // https://github.com/rust-lang/rust/blob/614f273e9388ddd7804d5cbc80b8865068a3744e/src/librustc_resolve/macros.rs#L456 |
| <a href=#328 id=328 data-nosnippet>328</a> // We follow what it did anyway :) |
| <a href=#329 id=329 data-nosnippet>329</a> </span><span class="kw">if </span>mod_path.segments.len() == <span class="number">1 |
| <a href=#330 id=330 data-nosnippet>330</a> </span>&& mod_path.kind == PathKind::Plain |
| <a href=#331 id=331 data-nosnippet>331</a> && <span class="kw">let </span><span class="prelude-val">Some</span>(_macro_call) = path.syntax().parent().and_then(ast::MacroCall::cast) |
| <a href=#332 id=332 data-nosnippet>332</a> { |
| <a href=#333 id=333 data-nosnippet>333</a> <span class="kw">let </span>syn_ctx = span_for_range(segment.syntax().text_range()); |
| <a href=#334 id=334 data-nosnippet>334</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(macro_call_id) = syn_ctx.outer_expn(db) |
| <a href=#335 id=335 data-nosnippet>335</a> && db.lookup_intern_macro_call(macro_call_id.into()).def.local_inner |
| <a href=#336 id=336 data-nosnippet>336</a> { |
| <a href=#337 id=337 data-nosnippet>337</a> mod_path.kind = <span class="kw">match </span>resolve_crate_root(db, syn_ctx) { |
| <a href=#338 id=338 data-nosnippet>338</a> <span class="prelude-val">Some</span>(crate_root) => PathKind::DollarCrate(crate_root), |
| <a href=#339 id=339 data-nosnippet>339</a> <span class="prelude-val">None </span>=> PathKind::Crate, |
| <a href=#340 id=340 data-nosnippet>340</a> } |
| <a href=#341 id=341 data-nosnippet>341</a> } |
| <a href=#342 id=342 data-nosnippet>342</a> } |
| <a href=#343 id=343 data-nosnippet>343</a> |
| <a href=#344 id=344 data-nosnippet>344</a> <span class="prelude-val">Some</span>(mod_path) |
| <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><span class="kw">fn </span>convert_path_tt(db: <span class="kw-2">&</span><span class="kw">dyn </span>ExpandDatabase, tt: tt::TokenTreesView<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Option</span><ModPath> { |
| <a href=#348 id=348 data-nosnippet>348</a> <span class="kw">let </span><span class="kw-2">mut </span>leaves = tt.iter().filter_map(|tt| <span class="kw">match </span>tt { |
| <a href=#349 id=349 data-nosnippet>349</a> tt::TtElement::Leaf(leaf) => <span class="prelude-val">Some</span>(leaf), |
| <a href=#350 id=350 data-nosnippet>350</a> tt::TtElement::Subtree(..) => <span class="prelude-val">None</span>, |
| <a href=#351 id=351 data-nosnippet>351</a> }); |
| <a href=#352 id=352 data-nosnippet>352</a> <span class="kw">let </span><span class="kw-2">mut </span>segments = <span class="macro">smallvec::smallvec!</span>[]; |
| <a href=#353 id=353 data-nosnippet>353</a> <span class="kw">let </span>kind = <span class="kw">match </span>leaves.next()<span class="question-mark">? </span>{ |
| <a href=#354 id=354 data-nosnippet>354</a> tt::Leaf::Punct(tt::Punct { char: <span class="string">':'</span>, .. }) => <span class="kw">match </span>leaves.next()<span class="question-mark">? </span>{ |
| <a href=#355 id=355 data-nosnippet>355</a> tt::Leaf::Punct(tt::Punct { char: <span class="string">':'</span>, .. }) => PathKind::Abs, |
| <a href=#356 id=356 data-nosnippet>356</a> <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#357 id=357 data-nosnippet>357</a> }, |
| <a href=#358 id=358 data-nosnippet>358</a> tt::Leaf::Ident(tt::Ident { sym: text, span, .. }) <span class="kw">if </span><span class="kw-2">*</span>text == sym::dollar_crate => { |
| <a href=#359 id=359 data-nosnippet>359</a> resolve_crate_root(db, span.ctx).map(PathKind::DollarCrate).unwrap_or(PathKind::Crate) |
| <a href=#360 id=360 data-nosnippet>360</a> } |
| <a href=#361 id=361 data-nosnippet>361</a> tt::Leaf::Ident(tt::Ident { sym: text, .. }) <span class="kw">if </span><span class="kw-2">*</span>text == sym::self_ => PathKind::SELF, |
| <a href=#362 id=362 data-nosnippet>362</a> tt::Leaf::Ident(tt::Ident { sym: text, .. }) <span class="kw">if </span><span class="kw-2">*</span>text == sym::super_ => { |
| <a href=#363 id=363 data-nosnippet>363</a> <span class="kw">let </span><span class="kw-2">mut </span>deg = <span class="number">1</span>; |
| <a href=#364 id=364 data-nosnippet>364</a> <span class="kw">while let </span><span class="prelude-val">Some</span>(tt::Leaf::Ident(tt::Ident { sym: text, span, is_raw: <span class="kw">_ </span>})) = |
| <a href=#365 id=365 data-nosnippet>365</a> leaves.next() |
| <a href=#366 id=366 data-nosnippet>366</a> { |
| <a href=#367 id=367 data-nosnippet>367</a> <span class="kw">if </span><span class="kw-2">*</span>text != sym::super_ { |
| <a href=#368 id=368 data-nosnippet>368</a> segments.push(Name::new_symbol(text.clone(), span.ctx)); |
| <a href=#369 id=369 data-nosnippet>369</a> <span class="kw">break</span>; |
| <a href=#370 id=370 data-nosnippet>370</a> } |
| <a href=#371 id=371 data-nosnippet>371</a> deg += <span class="number">1</span>; |
| <a href=#372 id=372 data-nosnippet>372</a> } |
| <a href=#373 id=373 data-nosnippet>373</a> PathKind::Super(deg) |
| <a href=#374 id=374 data-nosnippet>374</a> } |
| <a href=#375 id=375 data-nosnippet>375</a> tt::Leaf::Ident(tt::Ident { sym: text, .. }) <span class="kw">if </span><span class="kw-2">*</span>text == sym::crate_ => PathKind::Crate, |
| <a href=#376 id=376 data-nosnippet>376</a> tt::Leaf::Ident(ident) => { |
| <a href=#377 id=377 data-nosnippet>377</a> segments.push(Name::new_symbol(ident.sym.clone(), ident.span.ctx)); |
| <a href=#378 id=378 data-nosnippet>378</a> PathKind::Plain |
| <a href=#379 id=379 data-nosnippet>379</a> } |
| <a href=#380 id=380 data-nosnippet>380</a> <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">None</span>, |
| <a href=#381 id=381 data-nosnippet>381</a> }; |
| <a href=#382 id=382 data-nosnippet>382</a> segments.extend(leaves.filter_map(|leaf| <span class="kw">match </span>leaf { |
| <a href=#383 id=383 data-nosnippet>383</a> ::tt::Leaf::Ident(ident) => <span class="prelude-val">Some</span>(Name::new_symbol(ident.sym.clone(), ident.span.ctx)), |
| <a href=#384 id=384 data-nosnippet>384</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#385 id=385 data-nosnippet>385</a> })); |
| <a href=#386 id=386 data-nosnippet>386</a> <span class="prelude-val">Some</span>(ModPath { kind, segments }) |
| <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">pub fn </span>resolve_crate_root(db: <span class="kw-2">&</span><span class="kw">dyn </span>ExpandDatabase, <span class="kw-2">mut </span>ctxt: SyntaxContext) -> <span class="prelude-ty">Option</span><Crate> { |
| <a href=#390 id=390 data-nosnippet>390</a> <span class="comment">// When resolving `$crate` from a `macro_rules!` invoked in a `macro`, |
| <a href=#391 id=391 data-nosnippet>391</a> // we don't want to pretend that the `macro_rules!` definition is in the `macro` |
| <a href=#392 id=392 data-nosnippet>392</a> // as described in `SyntaxContextId::apply_mark`, so we ignore prepended opaque marks. |
| <a href=#393 id=393 data-nosnippet>393</a> // FIXME: This is only a guess and it doesn't work correctly for `macro_rules!` |
| <a href=#394 id=394 data-nosnippet>394</a> // definitions actually produced by `macro` and `macro` definitions produced by |
| <a href=#395 id=395 data-nosnippet>395</a> // `macro_rules!`, but at least such configurations are not stable yet. |
| <a href=#396 id=396 data-nosnippet>396</a> </span>ctxt = ctxt.normalize_to_macro_rules(db); |
| <a href=#397 id=397 data-nosnippet>397</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = ctxt.marks_rev(db).peekable(); |
| <a href=#398 id=398 data-nosnippet>398</a> <span class="kw">let </span><span class="kw-2">mut </span>result_mark = <span class="prelude-val">None</span>; |
| <a href=#399 id=399 data-nosnippet>399</a> <span class="comment">// Find the last opaque mark from the end if it exists. |
| <a href=#400 id=400 data-nosnippet>400</a> </span><span class="kw">while let </span><span class="prelude-val">Some</span>(<span class="kw-2">&</span>(mark, Transparency::Opaque)) = iter.peek() { |
| <a href=#401 id=401 data-nosnippet>401</a> result_mark = <span class="prelude-val">Some</span>(mark); |
| <a href=#402 id=402 data-nosnippet>402</a> iter.next(); |
| <a href=#403 id=403 data-nosnippet>403</a> } |
| <a href=#404 id=404 data-nosnippet>404</a> <span class="comment">// Then find the last semi-transparent mark from the end if it exists. |
| <a href=#405 id=405 data-nosnippet>405</a> </span><span class="kw">while let </span><span class="prelude-val">Some</span>((mark, Transparency::SemiTransparent)) = iter.next() { |
| <a href=#406 id=406 data-nosnippet>406</a> result_mark = <span class="prelude-val">Some</span>(mark); |
| <a href=#407 id=407 data-nosnippet>407</a> } |
| <a href=#408 id=408 data-nosnippet>408</a> |
| <a href=#409 id=409 data-nosnippet>409</a> result_mark.map(|call| db.lookup_intern_macro_call(call.into()).def.krate) |
| <a href=#410 id=410 data-nosnippet>410</a>} |
| <a href=#411 id=411 data-nosnippet>411</a> |
| <a href=#412 id=412 data-nosnippet>412</a><span class="kw">pub use </span><span class="kw">crate</span>::name <span class="kw">as </span>__name; |
| <a href=#413 id=413 data-nosnippet>413</a> |
| <a href=#414 id=414 data-nosnippet>414</a><span class="attr">#[macro_export] |
| <a href=#415 id=415 data-nosnippet>415</a></span><span class="macro">macro_rules!</span> __known_path { |
| <a href=#416 id=416 data-nosnippet>416</a> (core::iter::IntoIterator) => {}; |
| <a href=#417 id=417 data-nosnippet>417</a> (core::iter::Iterator) => {}; |
| <a href=#418 id=418 data-nosnippet>418</a> (core::result::Result) => {}; |
| <a href=#419 id=419 data-nosnippet>419</a> (core::option::Option) => {}; |
| <a href=#420 id=420 data-nosnippet>420</a> (core::ops::Range) => {}; |
| <a href=#421 id=421 data-nosnippet>421</a> (core::ops::RangeFrom) => {}; |
| <a href=#422 id=422 data-nosnippet>422</a> (core::ops::RangeFull) => {}; |
| <a href=#423 id=423 data-nosnippet>423</a> (core::ops::RangeTo) => {}; |
| <a href=#424 id=424 data-nosnippet>424</a> (core::ops::RangeToInclusive) => {}; |
| <a href=#425 id=425 data-nosnippet>425</a> (core::ops::RangeInclusive) => {}; |
| <a href=#426 id=426 data-nosnippet>426</a> (core::future::Future) => {}; |
| <a href=#427 id=427 data-nosnippet>427</a> (core::future::IntoFuture) => {}; |
| <a href=#428 id=428 data-nosnippet>428</a> (core::fmt::Debug) => {}; |
| <a href=#429 id=429 data-nosnippet>429</a> (std::fmt::format) => {}; |
| <a href=#430 id=430 data-nosnippet>430</a> (core::ops::Try) => {}; |
| <a href=#431 id=431 data-nosnippet>431</a> (core::convert::From) => {}; |
| <a href=#432 id=432 data-nosnippet>432</a> (core::convert::TryFrom) => {}; |
| <a href=#433 id=433 data-nosnippet>433</a> (core::str::FromStr) => {}; |
| <a href=#434 id=434 data-nosnippet>434</a> (<span class="macro-nonterminal">$path</span>:path) => { |
| <a href=#435 id=435 data-nosnippet>435</a> <span class="macro">compile_error!</span>(<span class="string">"Please register your known path in the path module"</span>) |
| <a href=#436 id=436 data-nosnippet>436</a> }; |
| <a href=#437 id=437 data-nosnippet>437</a>} |
| <a href=#438 id=438 data-nosnippet>438</a> |
| <a href=#439 id=439 data-nosnippet>439</a><span class="attr">#[macro_export] |
| <a href=#440 id=440 data-nosnippet>440</a></span><span class="macro">macro_rules!</span> __path { |
| <a href=#441 id=441 data-nosnippet>441</a> (<span class="macro-nonterminal">$start</span>:ident $(:: <span class="macro-nonterminal">$seg</span>:ident)<span class="kw-2">*</span>) => ({ |
| <a href=#442 id=442 data-nosnippet>442</a> <span class="macro-nonterminal">$</span><span class="macro">crate::__known_path!</span>(<span class="macro-nonterminal">$start </span>$(:: <span class="macro-nonterminal">$seg</span>)<span class="kw-2">*</span>); |
| <a href=#443 id=443 data-nosnippet>443</a> <span class="macro-nonterminal">$crate::mod_path::ModPath::from_segments</span>(<span class="macro-nonterminal">$crate::mod_path::PathKind::Abs</span>, <span class="macro">vec!</span>[ |
| <a href=#444 id=444 data-nosnippet>444</a> <span class="macro-nonterminal">$crate::name::Name::new_symbol_root</span>(<span class="macro-nonterminal">$crate::intern::sym</span>::<span class="macro-nonterminal">$start</span>.clone()), $(<span class="macro-nonterminal">$crate::name::Name::new_symbol_root</span>(<span class="macro-nonterminal">$crate::intern::sym</span>::<span class="macro-nonterminal">$seg</span>.clone()),)* |
| <a href=#445 id=445 data-nosnippet>445</a> ]) |
| <a href=#446 id=446 data-nosnippet>446</a> }); |
| <a href=#447 id=447 data-nosnippet>447</a>} |
| <a href=#448 id=448 data-nosnippet>448</a> |
| <a href=#449 id=449 data-nosnippet>449</a><span class="kw">pub use </span><span class="kw">crate</span>::__path <span class="kw">as </span>path; |
| <a href=#450 id=450 data-nosnippet>450</a> |
| <a href=#451 id=451 data-nosnippet>451</a><span class="attr">#[macro_export] |
| <a href=#452 id=452 data-nosnippet>452</a></span><span class="macro">macro_rules!</span> __tool_path { |
| <a href=#453 id=453 data-nosnippet>453</a> (<span class="macro-nonterminal">$start</span>:ident $(:: <span class="macro-nonterminal">$seg</span>:ident)<span class="kw-2">*</span>) => ({ |
| <a href=#454 id=454 data-nosnippet>454</a> <span class="macro-nonterminal">$crate::mod_path::ModPath::from_segments</span>(<span class="macro-nonterminal">$crate::mod_path::PathKind::Plain</span>, <span class="macro">vec!</span>[ |
| <a href=#455 id=455 data-nosnippet>455</a> <span class="macro-nonterminal">$crate::name::Name::new_symbol_root</span>(<span class="macro-nonterminal">$crate::intern::sym::rust_analyzer</span>), <span class="macro-nonterminal">$crate::name::Name::new_symbol_root</span>(<span class="macro-nonterminal">$crate::intern::sym</span>::<span class="macro-nonterminal">$start</span>.clone()), $(<span class="macro-nonterminal">$crate::name::Name::new_symbol_root</span>(<span class="macro-nonterminal">$crate::intern::sym</span>::<span class="macro-nonterminal">$seg</span>.clone()),)* |
| <a href=#456 id=456 data-nosnippet>456</a> ]) |
| <a href=#457 id=457 data-nosnippet>457</a> }); |
| <a href=#458 id=458 data-nosnippet>458</a>} |
| <a href=#459 id=459 data-nosnippet>459</a> |
| <a href=#460 id=460 data-nosnippet>460</a><span class="kw">pub use </span><span class="kw">crate</span>::__tool_path <span class="kw">as </span>tool_path;</code></pre></div></section></main></body></html> |
