| <!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/src/display.rs`."><title>display.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-84e720fa.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="hir" data-themes="" data-resource-suffix="" data-rustdoc-version="1.89.0 (29483883e 2025-08-04)" data-channel="1.89.0" data-search-js="search-92309212.js" data-settings-js="settings-5514c975.js" ><script src="../../static.files/storage-4e99c027.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-fd3af306.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-32bb7600.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">hir/</div>display.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">//! HirDisplay implementations for various hir types. |
| <a href=#2 id=2 data-nosnippet>2</a> |
| <a href=#3 id=3 data-nosnippet>3</a></span><span class="kw">use </span>either::Either; |
| <a href=#4 id=4 data-nosnippet>4</a><span class="kw">use </span>hir_def::{ |
| <a href=#5 id=5 data-nosnippet>5</a> AdtId, GenericDefId, |
| <a href=#6 id=6 data-nosnippet>6</a> expr_store::ExpressionStore, |
| <a href=#7 id=7 data-nosnippet>7</a> hir::generics::{GenericParams, TypeOrConstParamData, TypeParamProvenance, WherePredicate}, |
| <a href=#8 id=8 data-nosnippet>8</a> item_tree::FieldsShape, |
| <a href=#9 id=9 data-nosnippet>9</a> lang_item::LangItem, |
| <a href=#10 id=10 data-nosnippet>10</a> signatures::{StaticFlags, TraitFlags}, |
| <a href=#11 id=11 data-nosnippet>11</a> type_ref::{TypeBound, TypeRef, TypeRefId}, |
| <a href=#12 id=12 data-nosnippet>12</a>}; |
| <a href=#13 id=13 data-nosnippet>13</a><span class="kw">use </span>hir_ty::{ |
| <a href=#14 id=14 data-nosnippet>14</a> AliasEq, AliasTy, Interner, ProjectionTyExt, TraitRefExt, TyKind, WhereClause, |
| <a href=#15 id=15 data-nosnippet>15</a> db::HirDatabase, |
| <a href=#16 id=16 data-nosnippet>16</a> display::{ |
| <a href=#17 id=17 data-nosnippet>17</a> HirDisplay, HirDisplayError, HirDisplayWithExpressionStore, HirFormatter, SizedByDefault, |
| <a href=#18 id=18 data-nosnippet>18</a> hir_display_with_store, write_bounds_like_dyn_trait_with_prefix, write_visibility, |
| <a href=#19 id=19 data-nosnippet>19</a> }, |
| <a href=#20 id=20 data-nosnippet>20</a>}; |
| <a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>itertools::Itertools; |
| <a href=#22 id=22 data-nosnippet>22</a> |
| <a href=#23 id=23 data-nosnippet>23</a><span class="kw">use crate</span>::{ |
| <a href=#24 id=24 data-nosnippet>24</a> Adt, AsAssocItem, AssocItem, AssocItemContainer, Const, ConstParam, Crate, Enum, |
| <a href=#25 id=25 data-nosnippet>25</a> ExternCrateDecl, Field, Function, GenericParam, HasCrate, HasVisibility, Impl, LifetimeParam, |
| <a href=#26 id=26 data-nosnippet>26</a> Macro, Module, SelfParam, Static, Struct, StructKind, Trait, TraitRef, TupleField, TyBuilder, |
| <a href=#27 id=27 data-nosnippet>27</a> Type, TypeAlias, TypeNs, TypeOrConstParam, TypeParam, Union, Variant, |
| <a href=#28 id=28 data-nosnippet>28</a>}; |
| <a href=#29 id=29 data-nosnippet>29</a> |
| <a href=#30 id=30 data-nosnippet>30</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Function { |
| <a href=#31 id=31 data-nosnippet>31</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#32 id=32 data-nosnippet>32</a> <span class="kw">let </span>db = f.db; |
| <a href=#33 id=33 data-nosnippet>33</a> <span class="kw">let </span>data = db.function_signature(<span class="self">self</span>.id); |
| <a href=#34 id=34 data-nosnippet>34</a> <span class="kw">let </span>container = <span class="self">self</span>.as_assoc_item(db).map(|it| it.container(db)); |
| <a href=#35 id=35 data-nosnippet>35</a> <span class="kw">let </span><span class="kw-2">mut </span>module = <span class="self">self</span>.module(db); |
| <a href=#36 id=36 data-nosnippet>36</a> |
| <a href=#37 id=37 data-nosnippet>37</a> <span class="comment">// Write container (trait or impl) |
| <a href=#38 id=38 data-nosnippet>38</a> </span><span class="kw">let </span>container_params = <span class="kw">match </span>container { |
| <a href=#39 id=39 data-nosnippet>39</a> <span class="prelude-val">Some</span>(AssocItemContainer::Trait(trait_)) => { |
| <a href=#40 id=40 data-nosnippet>40</a> <span class="kw">let </span>(params, params_store) = f.db.generic_params_and_store(trait_.id.into()); |
| <a href=#41 id=41 data-nosnippet>41</a> <span class="kw">if </span>f.show_container_bounds() && !params.is_empty() { |
| <a href=#42 id=42 data-nosnippet>42</a> write_trait_header(<span class="kw-2">&</span>trait_, f)<span class="question-mark">?</span>; |
| <a href=#43 id=43 data-nosnippet>43</a> f.write_char(<span class="string">'\n'</span>)<span class="question-mark">?</span>; |
| <a href=#44 id=44 data-nosnippet>44</a> has_disaplayable_predicates(f.db, <span class="kw-2">&</span>params, <span class="kw-2">&</span>params_store) |
| <a href=#45 id=45 data-nosnippet>45</a> .then_some((params, params_store)) |
| <a href=#46 id=46 data-nosnippet>46</a> } <span class="kw">else </span>{ |
| <a href=#47 id=47 data-nosnippet>47</a> <span class="prelude-val">None |
| <a href=#48 id=48 data-nosnippet>48</a> </span>} |
| <a href=#49 id=49 data-nosnippet>49</a> } |
| <a href=#50 id=50 data-nosnippet>50</a> <span class="prelude-val">Some</span>(AssocItemContainer::Impl(impl_)) => { |
| <a href=#51 id=51 data-nosnippet>51</a> <span class="kw">let </span>(params, params_store) = f.db.generic_params_and_store(impl_.id.into()); |
| <a href=#52 id=52 data-nosnippet>52</a> <span class="kw">if </span>f.show_container_bounds() && !params.is_empty() { |
| <a href=#53 id=53 data-nosnippet>53</a> write_impl_header(<span class="kw-2">&</span>impl_, f)<span class="question-mark">?</span>; |
| <a href=#54 id=54 data-nosnippet>54</a> f.write_char(<span class="string">'\n'</span>)<span class="question-mark">?</span>; |
| <a href=#55 id=55 data-nosnippet>55</a> has_disaplayable_predicates(f.db, <span class="kw-2">&</span>params, <span class="kw-2">&</span>params_store) |
| <a href=#56 id=56 data-nosnippet>56</a> .then_some((params, params_store)) |
| <a href=#57 id=57 data-nosnippet>57</a> } <span class="kw">else </span>{ |
| <a href=#58 id=58 data-nosnippet>58</a> <span class="prelude-val">None |
| <a href=#59 id=59 data-nosnippet>59</a> </span>} |
| <a href=#60 id=60 data-nosnippet>60</a> } |
| <a href=#61 id=61 data-nosnippet>61</a> <span class="prelude-val">None </span>=> <span class="prelude-val">None</span>, |
| <a href=#62 id=62 data-nosnippet>62</a> }; |
| <a href=#63 id=63 data-nosnippet>63</a> |
| <a href=#64 id=64 data-nosnippet>64</a> <span class="comment">// Write signature of the function |
| <a href=#65 id=65 data-nosnippet>65</a> |
| <a href=#66 id=66 data-nosnippet>66</a> // Block-local impls are "hoisted" to the nearest (non-block) module. |
| <a href=#67 id=67 data-nosnippet>67</a> </span><span class="kw">if let </span><span class="prelude-val">Some</span>(AssocItemContainer::Impl(<span class="kw">_</span>)) = container { |
| <a href=#68 id=68 data-nosnippet>68</a> module = module.nearest_non_block_module(db); |
| <a href=#69 id=69 data-nosnippet>69</a> } |
| <a href=#70 id=70 data-nosnippet>70</a> <span class="kw">let </span>module_id = module.id; |
| <a href=#71 id=71 data-nosnippet>71</a> |
| <a href=#72 id=72 data-nosnippet>72</a> write_visibility(module_id, <span class="self">self</span>.visibility(db), f)<span class="question-mark">?</span>; |
| <a href=#73 id=73 data-nosnippet>73</a> |
| <a href=#74 id=74 data-nosnippet>74</a> <span class="kw">if </span>data.is_default() { |
| <a href=#75 id=75 data-nosnippet>75</a> f.write_str(<span class="string">"default "</span>)<span class="question-mark">?</span>; |
| <a href=#76 id=76 data-nosnippet>76</a> } |
| <a href=#77 id=77 data-nosnippet>77</a> <span class="kw">if </span>data.is_const() { |
| <a href=#78 id=78 data-nosnippet>78</a> f.write_str(<span class="string">"const "</span>)<span class="question-mark">?</span>; |
| <a href=#79 id=79 data-nosnippet>79</a> } |
| <a href=#80 id=80 data-nosnippet>80</a> <span class="kw">if </span>data.is_async() { |
| <a href=#81 id=81 data-nosnippet>81</a> f.write_str(<span class="string">"async "</span>)<span class="question-mark">?</span>; |
| <a href=#82 id=82 data-nosnippet>82</a> } |
| <a href=#83 id=83 data-nosnippet>83</a> <span class="comment">// FIXME: This will show `unsafe` for functions that are `#[target_feature]` but not unsafe |
| <a href=#84 id=84 data-nosnippet>84</a> // (they are conditionally unsafe to call). We probably should show something else. |
| <a href=#85 id=85 data-nosnippet>85</a> </span><span class="kw">if </span><span class="self">self</span>.is_unsafe_to_call(db, <span class="prelude-val">None</span>, f.edition()) { |
| <a href=#86 id=86 data-nosnippet>86</a> f.write_str(<span class="string">"unsafe "</span>)<span class="question-mark">?</span>; |
| <a href=#87 id=87 data-nosnippet>87</a> } |
| <a href=#88 id=88 data-nosnippet>88</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(abi) = <span class="kw-2">&</span>data.abi { |
| <a href=#89 id=89 data-nosnippet>89</a> <span class="macro">write!</span>(f, <span class="string">"extern \"{}\" "</span>, abi.as_str())<span class="question-mark">?</span>; |
| <a href=#90 id=90 data-nosnippet>90</a> } |
| <a href=#91 id=91 data-nosnippet>91</a> <span class="macro">write!</span>(f, <span class="string">"fn {}"</span>, data.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#92 id=92 data-nosnippet>92</a> |
| <a href=#93 id=93 data-nosnippet>93</a> write_generic_params(GenericDefId::FunctionId(<span class="self">self</span>.id), f)<span class="question-mark">?</span>; |
| <a href=#94 id=94 data-nosnippet>94</a> |
| <a href=#95 id=95 data-nosnippet>95</a> f.write_char(<span class="string">'('</span>)<span class="question-mark">?</span>; |
| <a href=#96 id=96 data-nosnippet>96</a> |
| <a href=#97 id=97 data-nosnippet>97</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#98 id=98 data-nosnippet>98</a> <span class="kw">let </span><span class="kw-2">mut </span>skip_self = <span class="number">0</span>; |
| <a href=#99 id=99 data-nosnippet>99</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(self_param) = <span class="self">self</span>.self_param(db) { |
| <a href=#100 id=100 data-nosnippet>100</a> self_param.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#101 id=101 data-nosnippet>101</a> first = <span class="bool-val">false</span>; |
| <a href=#102 id=102 data-nosnippet>102</a> skip_self = <span class="number">1</span>; |
| <a href=#103 id=103 data-nosnippet>103</a> } |
| <a href=#104 id=104 data-nosnippet>104</a> |
| <a href=#105 id=105 data-nosnippet>105</a> <span class="comment">// FIXME: Use resolved `param.ty` once we no longer discard lifetimes |
| <a href=#106 id=106 data-nosnippet>106</a> </span><span class="kw">let </span>body = db.body(<span class="self">self</span>.id.into()); |
| <a href=#107 id=107 data-nosnippet>107</a> <span class="kw">for </span>(type_ref, param) <span class="kw">in </span>data.params.iter().zip(<span class="self">self</span>.assoc_fn_params(db)).skip(skip_self) { |
| <a href=#108 id=108 data-nosnippet>108</a> <span class="kw">if </span>!first { |
| <a href=#109 id=109 data-nosnippet>109</a> f.write_str(<span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#110 id=110 data-nosnippet>110</a> } <span class="kw">else </span>{ |
| <a href=#111 id=111 data-nosnippet>111</a> first = <span class="bool-val">false</span>; |
| <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> <span class="kw">let </span>pat_id = body.params[param.idx - body.self_param.is_some() <span class="kw">as </span>usize]; |
| <a href=#115 id=115 data-nosnippet>115</a> <span class="kw">let </span>pat_str = body.pretty_print_pat(db, <span class="self">self</span>.id.into(), pat_id, <span class="bool-val">true</span>, f.edition()); |
| <a href=#116 id=116 data-nosnippet>116</a> f.write_str(<span class="kw-2">&</span>pat_str)<span class="question-mark">?</span>; |
| <a href=#117 id=117 data-nosnippet>117</a> |
| <a href=#118 id=118 data-nosnippet>118</a> f.write_str(<span class="string">": "</span>)<span class="question-mark">?</span>; |
| <a href=#119 id=119 data-nosnippet>119</a> type_ref.hir_fmt(f, <span class="kw-2">&</span>data.store)<span class="question-mark">?</span>; |
| <a href=#120 id=120 data-nosnippet>120</a> } |
| <a href=#121 id=121 data-nosnippet>121</a> |
| <a href=#122 id=122 data-nosnippet>122</a> <span class="kw">if </span>data.is_varargs() { |
| <a href=#123 id=123 data-nosnippet>123</a> <span class="kw">if </span>!first { |
| <a href=#124 id=124 data-nosnippet>124</a> f.write_str(<span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#125 id=125 data-nosnippet>125</a> } |
| <a href=#126 id=126 data-nosnippet>126</a> f.write_str(<span class="string">"..."</span>)<span class="question-mark">?</span>; |
| <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> f.write_char(<span class="string">')'</span>)<span class="question-mark">?</span>; |
| <a href=#130 id=130 data-nosnippet>130</a> |
| <a href=#131 id=131 data-nosnippet>131</a> <span class="comment">// `FunctionData::ret_type` will be `::core::future::Future<Output = ...>` for async fns. |
| <a href=#132 id=132 data-nosnippet>132</a> // Use ugly pattern match to strip the Future trait. |
| <a href=#133 id=133 data-nosnippet>133</a> // Better way? |
| <a href=#134 id=134 data-nosnippet>134</a> </span><span class="kw">let </span>ret_type = <span class="kw">if </span>!data.is_async() { |
| <a href=#135 id=135 data-nosnippet>135</a> data.ret_type |
| <a href=#136 id=136 data-nosnippet>136</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(ret_type) = data.ret_type { |
| <a href=#137 id=137 data-nosnippet>137</a> <span class="kw">match </span><span class="kw-2">&</span>data.store[ret_type] { |
| <a href=#138 id=138 data-nosnippet>138</a> TypeRef::ImplTrait(bounds) => <span class="kw">match </span><span class="kw-2">&</span>bounds[<span class="number">0</span>] { |
| <a href=#139 id=139 data-nosnippet>139</a> <span class="kw-2">&</span>TypeBound::Path(path, <span class="kw">_</span>) => <span class="prelude-val">Some</span>( |
| <a href=#140 id=140 data-nosnippet>140</a> <span class="kw-2">*</span>data.store[path] |
| <a href=#141 id=141 data-nosnippet>141</a> .segments() |
| <a href=#142 id=142 data-nosnippet>142</a> .iter() |
| <a href=#143 id=143 data-nosnippet>143</a> .last() |
| <a href=#144 id=144 data-nosnippet>144</a> .unwrap() |
| <a href=#145 id=145 data-nosnippet>145</a> .args_and_bindings |
| <a href=#146 id=146 data-nosnippet>146</a> .unwrap() |
| <a href=#147 id=147 data-nosnippet>147</a> .bindings[<span class="number">0</span>] |
| <a href=#148 id=148 data-nosnippet>148</a> .type_ref |
| <a href=#149 id=149 data-nosnippet>149</a> .as_ref() |
| <a href=#150 id=150 data-nosnippet>150</a> .unwrap(), |
| <a href=#151 id=151 data-nosnippet>151</a> ), |
| <a href=#152 id=152 data-nosnippet>152</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#153 id=153 data-nosnippet>153</a> }, |
| <a href=#154 id=154 data-nosnippet>154</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#155 id=155 data-nosnippet>155</a> } |
| <a href=#156 id=156 data-nosnippet>156</a> } <span class="kw">else </span>{ |
| <a href=#157 id=157 data-nosnippet>157</a> <span class="prelude-val">None |
| <a href=#158 id=158 data-nosnippet>158</a> </span>}; |
| <a href=#159 id=159 data-nosnippet>159</a> |
| <a href=#160 id=160 data-nosnippet>160</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(ret_type) = ret_type { |
| <a href=#161 id=161 data-nosnippet>161</a> <span class="kw">match </span><span class="kw-2">&</span>data.store[ret_type] { |
| <a href=#162 id=162 data-nosnippet>162</a> TypeRef::Tuple(tup) <span class="kw">if </span>tup.is_empty() => {} |
| <a href=#163 id=163 data-nosnippet>163</a> <span class="kw">_ </span>=> { |
| <a href=#164 id=164 data-nosnippet>164</a> f.write_str(<span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#165 id=165 data-nosnippet>165</a> ret_type.hir_fmt(f, <span class="kw-2">&</span>data.store)<span class="question-mark">?</span>; |
| <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> |
| <a href=#170 id=170 data-nosnippet>170</a> <span class="comment">// Write where clauses |
| <a href=#171 id=171 data-nosnippet>171</a> </span><span class="kw">let </span>has_written_where = write_where_clause(GenericDefId::FunctionId(<span class="self">self</span>.id), f)<span class="question-mark">?</span>; |
| <a href=#172 id=172 data-nosnippet>172</a> <span class="kw">if let </span><span class="prelude-val">Some</span>((container_params, container_params_store)) = container_params { |
| <a href=#173 id=173 data-nosnippet>173</a> <span class="kw">if </span>!has_written_where { |
| <a href=#174 id=174 data-nosnippet>174</a> f.write_str(<span class="string">"\nwhere"</span>)<span class="question-mark">?</span>; |
| <a href=#175 id=175 data-nosnippet>175</a> } |
| <a href=#176 id=176 data-nosnippet>176</a> <span class="kw">let </span>container_name = <span class="kw">match </span>container.unwrap() { |
| <a href=#177 id=177 data-nosnippet>177</a> AssocItemContainer::Trait(<span class="kw">_</span>) => <span class="string">"trait"</span>, |
| <a href=#178 id=178 data-nosnippet>178</a> AssocItemContainer::Impl(<span class="kw">_</span>) => <span class="string">"impl"</span>, |
| <a href=#179 id=179 data-nosnippet>179</a> }; |
| <a href=#180 id=180 data-nosnippet>180</a> <span class="macro">write!</span>(f, <span class="string">"\n // Bounds from {container_name}:"</span>,)<span class="question-mark">?</span>; |
| <a href=#181 id=181 data-nosnippet>181</a> write_where_predicates(<span class="kw-2">&</span>container_params, <span class="kw-2">&</span>container_params_store, f)<span class="question-mark">?</span>; |
| <a href=#182 id=182 data-nosnippet>182</a> } |
| <a href=#183 id=183 data-nosnippet>183</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#184 id=184 data-nosnippet>184</a> } |
| <a href=#185 id=185 data-nosnippet>185</a>} |
| <a href=#186 id=186 data-nosnippet>186</a> |
| <a href=#187 id=187 data-nosnippet>187</a><span class="kw">fn </span>write_impl_header(impl_: <span class="kw-2">&</span>Impl, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#188 id=188 data-nosnippet>188</a> <span class="kw">let </span>db = f.db; |
| <a href=#189 id=189 data-nosnippet>189</a> |
| <a href=#190 id=190 data-nosnippet>190</a> f.write_str(<span class="string">"impl"</span>)<span class="question-mark">?</span>; |
| <a href=#191 id=191 data-nosnippet>191</a> <span class="kw">let </span>def_id = GenericDefId::ImplId(impl_.id); |
| <a href=#192 id=192 data-nosnippet>192</a> write_generic_params(def_id, f)<span class="question-mark">?</span>; |
| <a href=#193 id=193 data-nosnippet>193</a> |
| <a href=#194 id=194 data-nosnippet>194</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(trait_) = impl_.trait_(db) { |
| <a href=#195 id=195 data-nosnippet>195</a> <span class="kw">let </span>trait_data = db.trait_signature(trait_.id); |
| <a href=#196 id=196 data-nosnippet>196</a> <span class="macro">write!</span>(f, <span class="string">" {} for"</span>, trait_data.name.display(db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#197 id=197 data-nosnippet>197</a> } |
| <a href=#198 id=198 data-nosnippet>198</a> |
| <a href=#199 id=199 data-nosnippet>199</a> f.write_char(<span class="string">' '</span>)<span class="question-mark">?</span>; |
| <a href=#200 id=200 data-nosnippet>200</a> impl_.self_ty(db).hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#201 id=201 data-nosnippet>201</a> |
| <a href=#202 id=202 data-nosnippet>202</a> <span class="prelude-val">Ok</span>(()) |
| <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">impl </span>HirDisplay <span class="kw">for </span>SelfParam { |
| <a href=#206 id=206 data-nosnippet>206</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#207 id=207 data-nosnippet>207</a> <span class="kw">let </span>data = f.db.function_signature(<span class="self">self</span>.func); |
| <a href=#208 id=208 data-nosnippet>208</a> <span class="kw">let </span>param = <span class="kw-2">*</span>data.params.first().unwrap(); |
| <a href=#209 id=209 data-nosnippet>209</a> <span class="kw">match </span><span class="kw-2">&</span>data.store[param] { |
| <a href=#210 id=210 data-nosnippet>210</a> TypeRef::Path(p) <span class="kw">if </span>p.is_self_type() => f.write_str(<span class="string">"self"</span>), |
| <a href=#211 id=211 data-nosnippet>211</a> TypeRef::Reference(ref_) <span class="kw">if </span><span class="macro">matches!</span>(<span class="kw-2">&</span>data.store[ref_.ty], TypeRef::Path(p) <span class="kw">if </span>p.is_self_type()) => |
| <a href=#212 id=212 data-nosnippet>212</a> { |
| <a href=#213 id=213 data-nosnippet>213</a> f.write_char(<span class="string">'&'</span>)<span class="question-mark">?</span>; |
| <a href=#214 id=214 data-nosnippet>214</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(lifetime) = <span class="kw-2">&</span>ref_.lifetime { |
| <a href=#215 id=215 data-nosnippet>215</a> lifetime.hir_fmt(f, <span class="kw-2">&</span>data.store)<span class="question-mark">?</span>; |
| <a href=#216 id=216 data-nosnippet>216</a> f.write_char(<span class="string">' '</span>)<span class="question-mark">?</span>; |
| <a href=#217 id=217 data-nosnippet>217</a> } |
| <a href=#218 id=218 data-nosnippet>218</a> <span class="kw">if let </span>hir_def::type_ref::Mutability::Mut = ref_.mutability { |
| <a href=#219 id=219 data-nosnippet>219</a> f.write_str(<span class="string">"mut "</span>)<span class="question-mark">?</span>; |
| <a href=#220 id=220 data-nosnippet>220</a> } |
| <a href=#221 id=221 data-nosnippet>221</a> f.write_str(<span class="string">"self"</span>) |
| <a href=#222 id=222 data-nosnippet>222</a> } |
| <a href=#223 id=223 data-nosnippet>223</a> <span class="kw">_ </span>=> { |
| <a href=#224 id=224 data-nosnippet>224</a> f.write_str(<span class="string">"self: "</span>)<span class="question-mark">?</span>; |
| <a href=#225 id=225 data-nosnippet>225</a> param.hir_fmt(f, <span class="kw-2">&</span>data.store) |
| <a href=#226 id=226 data-nosnippet>226</a> } |
| <a href=#227 id=227 data-nosnippet>227</a> } |
| <a href=#228 id=228 data-nosnippet>228</a> } |
| <a href=#229 id=229 data-nosnippet>229</a>} |
| <a href=#230 id=230 data-nosnippet>230</a> |
| <a href=#231 id=231 data-nosnippet>231</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Adt { |
| <a href=#232 id=232 data-nosnippet>232</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#233 id=233 data-nosnippet>233</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#234 id=234 data-nosnippet>234</a> Adt::Struct(it) => it.hir_fmt(f), |
| <a href=#235 id=235 data-nosnippet>235</a> Adt::Union(it) => it.hir_fmt(f), |
| <a href=#236 id=236 data-nosnippet>236</a> Adt::Enum(it) => it.hir_fmt(f), |
| <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>} |
| <a href=#240 id=240 data-nosnippet>240</a> |
| <a href=#241 id=241 data-nosnippet>241</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Struct { |
| <a href=#242 id=242 data-nosnippet>242</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#243 id=243 data-nosnippet>243</a> <span class="kw">let </span>module_id = <span class="self">self</span>.module(f.db).id; |
| <a href=#244 id=244 data-nosnippet>244</a> <span class="comment">// FIXME: Render repr if its set explicitly? |
| <a href=#245 id=245 data-nosnippet>245</a> </span>write_visibility(module_id, <span class="self">self</span>.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#246 id=246 data-nosnippet>246</a> f.write_str(<span class="string">"struct "</span>)<span class="question-mark">?</span>; |
| <a href=#247 id=247 data-nosnippet>247</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#248 id=248 data-nosnippet>248</a> <span class="kw">let </span>def_id = GenericDefId::AdtId(AdtId::StructId(<span class="self">self</span>.id)); |
| <a href=#249 id=249 data-nosnippet>249</a> write_generic_params(def_id, f)<span class="question-mark">?</span>; |
| <a href=#250 id=250 data-nosnippet>250</a> |
| <a href=#251 id=251 data-nosnippet>251</a> <span class="kw">let </span>variant_data = <span class="self">self</span>.variant_fields(f.db); |
| <a href=#252 id=252 data-nosnippet>252</a> <span class="kw">match </span><span class="self">self</span>.kind(f.db) { |
| <a href=#253 id=253 data-nosnippet>253</a> StructKind::Tuple => { |
| <a href=#254 id=254 data-nosnippet>254</a> f.write_char(<span class="string">'('</span>)<span class="question-mark">?</span>; |
| <a href=#255 id=255 data-nosnippet>255</a> <span class="kw">let </span><span class="kw-2">mut </span>it = variant_data.fields().iter().peekable(); |
| <a href=#256 id=256 data-nosnippet>256</a> |
| <a href=#257 id=257 data-nosnippet>257</a> <span class="kw">while let </span><span class="prelude-val">Some</span>((id, <span class="kw">_</span>)) = it.next() { |
| <a href=#258 id=258 data-nosnippet>258</a> <span class="kw">let </span>field = Field { parent: (<span class="kw-2">*</span><span class="self">self</span>).into(), id }; |
| <a href=#259 id=259 data-nosnippet>259</a> write_visibility(module_id, field.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#260 id=260 data-nosnippet>260</a> field.ty(f.db).hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#261 id=261 data-nosnippet>261</a> <span class="kw">if </span>it.peek().is_some() { |
| <a href=#262 id=262 data-nosnippet>262</a> f.write_str(<span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#263 id=263 data-nosnippet>263</a> } |
| <a href=#264 id=264 data-nosnippet>264</a> } |
| <a href=#265 id=265 data-nosnippet>265</a> |
| <a href=#266 id=266 data-nosnippet>266</a> f.write_char(<span class="string">')'</span>)<span class="question-mark">?</span>; |
| <a href=#267 id=267 data-nosnippet>267</a> write_where_clause(def_id, f)<span class="question-mark">?</span>; |
| <a href=#268 id=268 data-nosnippet>268</a> } |
| <a href=#269 id=269 data-nosnippet>269</a> StructKind::Record => { |
| <a href=#270 id=270 data-nosnippet>270</a> <span class="kw">let </span>has_where_clause = write_where_clause(def_id, f)<span class="question-mark">?</span>; |
| <a href=#271 id=271 data-nosnippet>271</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(limit) = f.entity_limit { |
| <a href=#272 id=272 data-nosnippet>272</a> write_fields(<span class="kw-2">&</span><span class="self">self</span>.fields(f.db), has_where_clause, limit, <span class="bool-val">false</span>, f)<span class="question-mark">?</span>; |
| <a href=#273 id=273 data-nosnippet>273</a> } |
| <a href=#274 id=274 data-nosnippet>274</a> } |
| <a href=#275 id=275 data-nosnippet>275</a> StructKind::Unit => <span class="kw">_ </span>= write_where_clause(def_id, f)<span class="question-mark">?</span>, |
| <a href=#276 id=276 data-nosnippet>276</a> } |
| <a href=#277 id=277 data-nosnippet>277</a> |
| <a href=#278 id=278 data-nosnippet>278</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#279 id=279 data-nosnippet>279</a> } |
| <a href=#280 id=280 data-nosnippet>280</a>} |
| <a href=#281 id=281 data-nosnippet>281</a> |
| <a href=#282 id=282 data-nosnippet>282</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Enum { |
| <a href=#283 id=283 data-nosnippet>283</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#284 id=284 data-nosnippet>284</a> write_visibility(<span class="self">self</span>.module(f.db).id, <span class="self">self</span>.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#285 id=285 data-nosnippet>285</a> f.write_str(<span class="string">"enum "</span>)<span class="question-mark">?</span>; |
| <a href=#286 id=286 data-nosnippet>286</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#287 id=287 data-nosnippet>287</a> <span class="kw">let </span>def_id = GenericDefId::AdtId(AdtId::EnumId(<span class="self">self</span>.id)); |
| <a href=#288 id=288 data-nosnippet>288</a> write_generic_params(def_id, f)<span class="question-mark">?</span>; |
| <a href=#289 id=289 data-nosnippet>289</a> |
| <a href=#290 id=290 data-nosnippet>290</a> <span class="kw">let </span>has_where_clause = write_where_clause(def_id, f)<span class="question-mark">?</span>; |
| <a href=#291 id=291 data-nosnippet>291</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(limit) = f.entity_limit { |
| <a href=#292 id=292 data-nosnippet>292</a> write_variants(<span class="kw-2">&</span><span class="self">self</span>.variants(f.db), has_where_clause, limit, f)<span class="question-mark">?</span>; |
| <a href=#293 id=293 data-nosnippet>293</a> } |
| <a href=#294 id=294 data-nosnippet>294</a> |
| <a href=#295 id=295 data-nosnippet>295</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#296 id=296 data-nosnippet>296</a> } |
| <a href=#297 id=297 data-nosnippet>297</a>} |
| <a href=#298 id=298 data-nosnippet>298</a> |
| <a href=#299 id=299 data-nosnippet>299</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Union { |
| <a href=#300 id=300 data-nosnippet>300</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#301 id=301 data-nosnippet>301</a> write_visibility(<span class="self">self</span>.module(f.db).id, <span class="self">self</span>.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#302 id=302 data-nosnippet>302</a> f.write_str(<span class="string">"union "</span>)<span class="question-mark">?</span>; |
| <a href=#303 id=303 data-nosnippet>303</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#304 id=304 data-nosnippet>304</a> <span class="kw">let </span>def_id = GenericDefId::AdtId(AdtId::UnionId(<span class="self">self</span>.id)); |
| <a href=#305 id=305 data-nosnippet>305</a> write_generic_params(def_id, f)<span class="question-mark">?</span>; |
| <a href=#306 id=306 data-nosnippet>306</a> |
| <a href=#307 id=307 data-nosnippet>307</a> <span class="kw">let </span>has_where_clause = write_where_clause(def_id, f)<span class="question-mark">?</span>; |
| <a href=#308 id=308 data-nosnippet>308</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(limit) = f.entity_limit { |
| <a href=#309 id=309 data-nosnippet>309</a> write_fields(<span class="kw-2">&</span><span class="self">self</span>.fields(f.db), has_where_clause, limit, <span class="bool-val">false</span>, f)<span class="question-mark">?</span>; |
| <a href=#310 id=310 data-nosnippet>310</a> } |
| <a href=#311 id=311 data-nosnippet>311</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#312 id=312 data-nosnippet>312</a> } |
| <a href=#313 id=313 data-nosnippet>313</a>} |
| <a href=#314 id=314 data-nosnippet>314</a> |
| <a href=#315 id=315 data-nosnippet>315</a><span class="kw">fn </span>write_fields( |
| <a href=#316 id=316 data-nosnippet>316</a> fields: <span class="kw-2">&</span>[Field], |
| <a href=#317 id=317 data-nosnippet>317</a> has_where_clause: bool, |
| <a href=#318 id=318 data-nosnippet>318</a> limit: usize, |
| <a href=#319 id=319 data-nosnippet>319</a> in_line: bool, |
| <a href=#320 id=320 data-nosnippet>320</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>, |
| <a href=#321 id=321 data-nosnippet>321</a>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#322 id=322 data-nosnippet>322</a> <span class="kw">let </span>count = fields.len().min(limit); |
| <a href=#323 id=323 data-nosnippet>323</a> <span class="kw">let </span>(indent, separator) = <span class="kw">if </span>in_line { (<span class="string">""</span>, <span class="string">' '</span>) } <span class="kw">else </span>{ (<span class="string">" "</span>, <span class="string">'\n'</span>) }; |
| <a href=#324 id=324 data-nosnippet>324</a> f.write_char(<span class="kw">if </span>!has_where_clause { <span class="string">' ' </span>} <span class="kw">else </span>{ separator })<span class="question-mark">?</span>; |
| <a href=#325 id=325 data-nosnippet>325</a> <span class="kw">if </span>count == <span class="number">0 </span>{ |
| <a href=#326 id=326 data-nosnippet>326</a> f.write_str(<span class="kw">if </span>fields.is_empty() { <span class="string">"{}" </span>} <span class="kw">else </span>{ <span class="string">"{ /* … */ }" </span>})<span class="question-mark">?</span>; |
| <a href=#327 id=327 data-nosnippet>327</a> } <span class="kw">else </span>{ |
| <a href=#328 id=328 data-nosnippet>328</a> f.write_char(<span class="string">'{'</span>)<span class="question-mark">?</span>; |
| <a href=#329 id=329 data-nosnippet>329</a> |
| <a href=#330 id=330 data-nosnippet>330</a> <span class="kw">if </span>!fields.is_empty() { |
| <a href=#331 id=331 data-nosnippet>331</a> f.write_char(separator)<span class="question-mark">?</span>; |
| <a href=#332 id=332 data-nosnippet>332</a> <span class="kw">for </span>field <span class="kw">in </span><span class="kw-2">&</span>fields[..count] { |
| <a href=#333 id=333 data-nosnippet>333</a> f.write_str(indent)<span class="question-mark">?</span>; |
| <a href=#334 id=334 data-nosnippet>334</a> field.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#335 id=335 data-nosnippet>335</a> <span class="macro">write!</span>(f, <span class="string">",{separator}"</span>)<span class="question-mark">?</span>; |
| <a href=#336 id=336 data-nosnippet>336</a> } |
| <a href=#337 id=337 data-nosnippet>337</a> |
| <a href=#338 id=338 data-nosnippet>338</a> <span class="kw">if </span>fields.len() > count { |
| <a href=#339 id=339 data-nosnippet>339</a> <span class="macro">write!</span>(f, <span class="string">"{indent}/* … */{separator}"</span>)<span class="question-mark">?</span>; |
| <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> f.write_str(<span class="string">"}"</span>)<span class="question-mark">?</span>; |
| <a href=#344 id=344 data-nosnippet>344</a> } |
| <a href=#345 id=345 data-nosnippet>345</a> |
| <a href=#346 id=346 data-nosnippet>346</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#347 id=347 data-nosnippet>347</a>} |
| <a href=#348 id=348 data-nosnippet>348</a> |
| <a href=#349 id=349 data-nosnippet>349</a><span class="kw">fn </span>write_variants( |
| <a href=#350 id=350 data-nosnippet>350</a> variants: <span class="kw-2">&</span>[Variant], |
| <a href=#351 id=351 data-nosnippet>351</a> has_where_clause: bool, |
| <a href=#352 id=352 data-nosnippet>352</a> limit: usize, |
| <a href=#353 id=353 data-nosnippet>353</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>, |
| <a href=#354 id=354 data-nosnippet>354</a>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#355 id=355 data-nosnippet>355</a> <span class="kw">let </span>count = variants.len().min(limit); |
| <a href=#356 id=356 data-nosnippet>356</a> f.write_char(<span class="kw">if </span>!has_where_clause { <span class="string">' ' </span>} <span class="kw">else </span>{ <span class="string">'\n' </span>})<span class="question-mark">?</span>; |
| <a href=#357 id=357 data-nosnippet>357</a> <span class="kw">if </span>count == <span class="number">0 </span>{ |
| <a href=#358 id=358 data-nosnippet>358</a> <span class="kw">let </span>variants = <span class="kw">if </span>variants.is_empty() { <span class="string">"{}" </span>} <span class="kw">else </span>{ <span class="string">"{ /* … */ }" </span>}; |
| <a href=#359 id=359 data-nosnippet>359</a> f.write_str(variants)<span class="question-mark">?</span>; |
| <a href=#360 id=360 data-nosnippet>360</a> } <span class="kw">else </span>{ |
| <a href=#361 id=361 data-nosnippet>361</a> f.write_str(<span class="string">"{\n"</span>)<span class="question-mark">?</span>; |
| <a href=#362 id=362 data-nosnippet>362</a> <span class="kw">for </span>variant <span class="kw">in </span><span class="kw-2">&</span>variants[..count] { |
| <a href=#363 id=363 data-nosnippet>363</a> <span class="macro">write!</span>(f, <span class="string">" {}"</span>, variant.name(f.db).display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#364 id=364 data-nosnippet>364</a> <span class="kw">match </span>variant.kind(f.db) { |
| <a href=#365 id=365 data-nosnippet>365</a> StructKind::Tuple => { |
| <a href=#366 id=366 data-nosnippet>366</a> <span class="kw">let </span>fields_str = |
| <a href=#367 id=367 data-nosnippet>367</a> <span class="kw">if </span>variant.fields(f.db).is_empty() { <span class="string">"()" </span>} <span class="kw">else </span>{ <span class="string">"( /* … */ )" </span>}; |
| <a href=#368 id=368 data-nosnippet>368</a> f.write_str(fields_str)<span class="question-mark">?</span>; |
| <a href=#369 id=369 data-nosnippet>369</a> } |
| <a href=#370 id=370 data-nosnippet>370</a> StructKind::Record => { |
| <a href=#371 id=371 data-nosnippet>371</a> <span class="kw">let </span>fields_str = |
| <a href=#372 id=372 data-nosnippet>372</a> <span class="kw">if </span>variant.fields(f.db).is_empty() { <span class="string">" {}" </span>} <span class="kw">else </span>{ <span class="string">" { /* … */ }" </span>}; |
| <a href=#373 id=373 data-nosnippet>373</a> f.write_str(fields_str)<span class="question-mark">?</span>; |
| <a href=#374 id=374 data-nosnippet>374</a> } |
| <a href=#375 id=375 data-nosnippet>375</a> StructKind::Unit => {} |
| <a href=#376 id=376 data-nosnippet>376</a> } |
| <a href=#377 id=377 data-nosnippet>377</a> f.write_str(<span class="string">",\n"</span>)<span class="question-mark">?</span>; |
| <a href=#378 id=378 data-nosnippet>378</a> } |
| <a href=#379 id=379 data-nosnippet>379</a> |
| <a href=#380 id=380 data-nosnippet>380</a> <span class="kw">if </span>variants.len() > count { |
| <a href=#381 id=381 data-nosnippet>381</a> f.write_str(<span class="string">" /* … */\n"</span>)<span class="question-mark">?</span>; |
| <a href=#382 id=382 data-nosnippet>382</a> } |
| <a href=#383 id=383 data-nosnippet>383</a> f.write_str(<span class="string">"}"</span>)<span class="question-mark">?</span>; |
| <a href=#384 id=384 data-nosnippet>384</a> } |
| <a href=#385 id=385 data-nosnippet>385</a> |
| <a href=#386 id=386 data-nosnippet>386</a> <span class="prelude-val">Ok</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">impl </span>HirDisplay <span class="kw">for </span>Field { |
| <a href=#390 id=390 data-nosnippet>390</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#391 id=391 data-nosnippet>391</a> write_visibility(<span class="self">self</span>.parent.module(f.db).id, <span class="self">self</span>.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#392 id=392 data-nosnippet>392</a> <span class="macro">write!</span>(f, <span class="string">"{}: "</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#393 id=393 data-nosnippet>393</a> <span class="self">self</span>.ty(f.db).hir_fmt(f) |
| <a href=#394 id=394 data-nosnippet>394</a> } |
| <a href=#395 id=395 data-nosnippet>395</a>} |
| <a href=#396 id=396 data-nosnippet>396</a> |
| <a href=#397 id=397 data-nosnippet>397</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>TupleField { |
| <a href=#398 id=398 data-nosnippet>398</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#399 id=399 data-nosnippet>399</a> <span class="macro">write!</span>(f, <span class="string">"pub {}: "</span>, <span class="self">self</span>.name().display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#400 id=400 data-nosnippet>400</a> <span class="self">self</span>.ty(f.db).hir_fmt(f) |
| <a href=#401 id=401 data-nosnippet>401</a> } |
| <a href=#402 id=402 data-nosnippet>402</a>} |
| <a href=#403 id=403 data-nosnippet>403</a> |
| <a href=#404 id=404 data-nosnippet>404</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Variant { |
| <a href=#405 id=405 data-nosnippet>405</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#406 id=406 data-nosnippet>406</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#407 id=407 data-nosnippet>407</a> <span class="kw">let </span>data = <span class="self">self</span>.id.fields(f.db); |
| <a href=#408 id=408 data-nosnippet>408</a> <span class="kw">match </span>data.shape { |
| <a href=#409 id=409 data-nosnippet>409</a> FieldsShape::Unit => {} |
| <a href=#410 id=410 data-nosnippet>410</a> FieldsShape::Tuple => { |
| <a href=#411 id=411 data-nosnippet>411</a> f.write_char(<span class="string">'('</span>)<span class="question-mark">?</span>; |
| <a href=#412 id=412 data-nosnippet>412</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#413 id=413 data-nosnippet>413</a> <span class="kw">for </span>(<span class="kw">_</span>, field) <span class="kw">in </span>data.fields().iter() { |
| <a href=#414 id=414 data-nosnippet>414</a> <span class="kw">if </span>first { |
| <a href=#415 id=415 data-nosnippet>415</a> first = <span class="bool-val">false</span>; |
| <a href=#416 id=416 data-nosnippet>416</a> } <span class="kw">else </span>{ |
| <a href=#417 id=417 data-nosnippet>417</a> f.write_str(<span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#418 id=418 data-nosnippet>418</a> } |
| <a href=#419 id=419 data-nosnippet>419</a> <span class="comment">// Enum variant fields must be pub. |
| <a href=#420 id=420 data-nosnippet>420</a> </span>field.type_ref.hir_fmt(f, <span class="kw-2">&</span>data.store)<span class="question-mark">?</span>; |
| <a href=#421 id=421 data-nosnippet>421</a> } |
| <a href=#422 id=422 data-nosnippet>422</a> f.write_char(<span class="string">')'</span>)<span class="question-mark">?</span>; |
| <a href=#423 id=423 data-nosnippet>423</a> } |
| <a href=#424 id=424 data-nosnippet>424</a> FieldsShape::Record => { |
| <a href=#425 id=425 data-nosnippet>425</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(limit) = f.entity_limit { |
| <a href=#426 id=426 data-nosnippet>426</a> write_fields(<span class="kw-2">&</span><span class="self">self</span>.fields(f.db), <span class="bool-val">false</span>, limit, <span class="bool-val">true</span>, f)<span class="question-mark">?</span>; |
| <a href=#427 id=427 data-nosnippet>427</a> } |
| <a href=#428 id=428 data-nosnippet>428</a> } |
| <a href=#429 id=429 data-nosnippet>429</a> } |
| <a href=#430 id=430 data-nosnippet>430</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#431 id=431 data-nosnippet>431</a> } |
| <a href=#432 id=432 data-nosnippet>432</a>} |
| <a href=#433 id=433 data-nosnippet>433</a> |
| <a href=#434 id=434 data-nosnippet>434</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Type<<span class="lifetime">'_</span>> { |
| <a href=#435 id=435 data-nosnippet>435</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#436 id=436 data-nosnippet>436</a> <span class="self">self</span>.ty.hir_fmt(f) |
| <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> |
| <a href=#440 id=440 data-nosnippet>440</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>TypeNs<<span class="lifetime">'_</span>> { |
| <a href=#441 id=441 data-nosnippet>441</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#442 id=442 data-nosnippet>442</a> <span class="self">self</span>.ty.hir_fmt(f) |
| <a href=#443 id=443 data-nosnippet>443</a> } |
| <a href=#444 id=444 data-nosnippet>444</a>} |
| <a href=#445 id=445 data-nosnippet>445</a> |
| <a href=#446 id=446 data-nosnippet>446</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>ExternCrateDecl { |
| <a href=#447 id=447 data-nosnippet>447</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#448 id=448 data-nosnippet>448</a> write_visibility(<span class="self">self</span>.module(f.db).id, <span class="self">self</span>.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#449 id=449 data-nosnippet>449</a> f.write_str(<span class="string">"extern crate "</span>)<span class="question-mark">?</span>; |
| <a href=#450 id=450 data-nosnippet>450</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#451 id=451 data-nosnippet>451</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(alias) = <span class="self">self</span>.alias(f.db) { |
| <a href=#452 id=452 data-nosnippet>452</a> <span class="macro">write!</span>(f, <span class="string">" as {}"</span>, alias.display(f.edition()))<span class="question-mark">?</span>; |
| <a href=#453 id=453 data-nosnippet>453</a> } |
| <a href=#454 id=454 data-nosnippet>454</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#455 id=455 data-nosnippet>455</a> } |
| <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><span class="kw">impl </span>HirDisplay <span class="kw">for </span>GenericParam { |
| <a href=#459 id=459 data-nosnippet>459</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#460 id=460 data-nosnippet>460</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#461 id=461 data-nosnippet>461</a> GenericParam::TypeParam(it) => it.hir_fmt(f), |
| <a href=#462 id=462 data-nosnippet>462</a> GenericParam::ConstParam(it) => it.hir_fmt(f), |
| <a href=#463 id=463 data-nosnippet>463</a> GenericParam::LifetimeParam(it) => it.hir_fmt(f), |
| <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>} |
| <a href=#467 id=467 data-nosnippet>467</a> |
| <a href=#468 id=468 data-nosnippet>468</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>TypeOrConstParam { |
| <a href=#469 id=469 data-nosnippet>469</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#470 id=470 data-nosnippet>470</a> <span class="kw">match </span><span class="self">self</span>.split(f.db) { |
| <a href=#471 id=471 data-nosnippet>471</a> either::Either::Left(it) => it.hir_fmt(f), |
| <a href=#472 id=472 data-nosnippet>472</a> either::Either::Right(it) => it.hir_fmt(f), |
| <a href=#473 id=473 data-nosnippet>473</a> } |
| <a href=#474 id=474 data-nosnippet>474</a> } |
| <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><span class="kw">impl </span>HirDisplay <span class="kw">for </span>TypeParam { |
| <a href=#478 id=478 data-nosnippet>478</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#479 id=479 data-nosnippet>479</a> <span class="kw">let </span>params = f.db.generic_params(<span class="self">self</span>.id.parent()); |
| <a href=#480 id=480 data-nosnippet>480</a> <span class="kw">let </span>param_data = <span class="kw-2">&</span>params[<span class="self">self</span>.id.local_id()]; |
| <a href=#481 id=481 data-nosnippet>481</a> <span class="kw">let </span>substs = TyBuilder::placeholder_subst(f.db, <span class="self">self</span>.id.parent()); |
| <a href=#482 id=482 data-nosnippet>482</a> <span class="kw">let </span>krate = <span class="self">self</span>.id.parent().krate(f.db).id; |
| <a href=#483 id=483 data-nosnippet>483</a> <span class="kw">let </span>ty = TyKind::Placeholder(hir_ty::to_placeholder_idx_no_index(f.db, <span class="self">self</span>.id.into())) |
| <a href=#484 id=484 data-nosnippet>484</a> .intern(Interner); |
| <a href=#485 id=485 data-nosnippet>485</a> <span class="kw">let </span>predicates = f.db.generic_predicates(<span class="self">self</span>.id.parent()); |
| <a href=#486 id=486 data-nosnippet>486</a> <span class="kw">let </span>predicates = predicates |
| <a href=#487 id=487 data-nosnippet>487</a> .iter() |
| <a href=#488 id=488 data-nosnippet>488</a> .cloned() |
| <a href=#489 id=489 data-nosnippet>489</a> .map(|pred| pred.substitute(Interner, <span class="kw-2">&</span>substs)) |
| <a href=#490 id=490 data-nosnippet>490</a> .filter(|wc| <span class="kw">match </span>wc.skip_binders() { |
| <a href=#491 id=491 data-nosnippet>491</a> WhereClause::Implemented(tr) => tr.self_type_parameter(Interner) == ty, |
| <a href=#492 id=492 data-nosnippet>492</a> WhereClause::AliasEq(AliasEq { alias: AliasTy::Projection(proj), ty: <span class="kw">_ </span>}) => { |
| <a href=#493 id=493 data-nosnippet>493</a> proj.self_type_parameter(f.db) == ty |
| <a href=#494 id=494 data-nosnippet>494</a> } |
| <a href=#495 id=495 data-nosnippet>495</a> WhereClause::AliasEq(<span class="kw">_</span>) => <span class="bool-val">false</span>, |
| <a href=#496 id=496 data-nosnippet>496</a> WhereClause::TypeOutlives(to) => to.ty == ty, |
| <a href=#497 id=497 data-nosnippet>497</a> WhereClause::LifetimeOutlives(<span class="kw">_</span>) => <span class="bool-val">false</span>, |
| <a href=#498 id=498 data-nosnippet>498</a> }) |
| <a href=#499 id=499 data-nosnippet>499</a> .collect::<Vec<<span class="kw">_</span>>>(); |
| <a href=#500 id=500 data-nosnippet>500</a> |
| <a href=#501 id=501 data-nosnippet>501</a> <span class="kw">match </span>param_data { |
| <a href=#502 id=502 data-nosnippet>502</a> TypeOrConstParamData::TypeParamData(p) => <span class="kw">match </span>p.provenance { |
| <a href=#503 id=503 data-nosnippet>503</a> TypeParamProvenance::TypeParamList | TypeParamProvenance::TraitSelf => { |
| <a href=#504 id=504 data-nosnippet>504</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, p.name.clone().unwrap().display(f.db, f.edition()))<span class="question-mark">? |
| <a href=#505 id=505 data-nosnippet>505</a> </span>} |
| <a href=#506 id=506 data-nosnippet>506</a> TypeParamProvenance::ArgumentImplTrait => { |
| <a href=#507 id=507 data-nosnippet>507</a> <span class="kw">return </span>write_bounds_like_dyn_trait_with_prefix( |
| <a href=#508 id=508 data-nosnippet>508</a> f, |
| <a href=#509 id=509 data-nosnippet>509</a> <span class="string">"impl"</span>, |
| <a href=#510 id=510 data-nosnippet>510</a> Either::Left(<span class="kw-2">&</span>ty), |
| <a href=#511 id=511 data-nosnippet>511</a> <span class="kw-2">&</span>predicates, |
| <a href=#512 id=512 data-nosnippet>512</a> SizedByDefault::Sized { anchor: krate }, |
| <a href=#513 id=513 data-nosnippet>513</a> ); |
| <a href=#514 id=514 data-nosnippet>514</a> } |
| <a href=#515 id=515 data-nosnippet>515</a> }, |
| <a href=#516 id=516 data-nosnippet>516</a> TypeOrConstParamData::ConstParamData(p) => { |
| <a href=#517 id=517 data-nosnippet>517</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, p.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#518 id=518 data-nosnippet>518</a> } |
| <a href=#519 id=519 data-nosnippet>519</a> } |
| <a href=#520 id=520 data-nosnippet>520</a> |
| <a href=#521 id=521 data-nosnippet>521</a> <span class="kw">if </span>f.omit_verbose_types() { |
| <a href=#522 id=522 data-nosnippet>522</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| <a href=#523 id=523 data-nosnippet>523</a> } |
| <a href=#524 id=524 data-nosnippet>524</a> |
| <a href=#525 id=525 data-nosnippet>525</a> <span class="kw">let </span>sized_trait = LangItem::Sized.resolve_trait(f.db, krate); |
| <a href=#526 id=526 data-nosnippet>526</a> <span class="kw">let </span>has_only_sized_bound = predicates.iter().all(<span class="kw">move </span>|pred| <span class="kw">match </span>pred.skip_binders() { |
| <a href=#527 id=527 data-nosnippet>527</a> WhereClause::Implemented(it) => <span class="prelude-val">Some</span>(it.hir_trait_id()) == sized_trait, |
| <a href=#528 id=528 data-nosnippet>528</a> <span class="kw">_ </span>=> <span class="bool-val">false</span>, |
| <a href=#529 id=529 data-nosnippet>529</a> }); |
| <a href=#530 id=530 data-nosnippet>530</a> <span class="kw">let </span>has_only_not_sized_bound = predicates.is_empty(); |
| <a href=#531 id=531 data-nosnippet>531</a> <span class="kw">if </span>!has_only_sized_bound || has_only_not_sized_bound { |
| <a href=#532 id=532 data-nosnippet>532</a> <span class="kw">let </span>default_sized = SizedByDefault::Sized { anchor: krate }; |
| <a href=#533 id=533 data-nosnippet>533</a> write_bounds_like_dyn_trait_with_prefix( |
| <a href=#534 id=534 data-nosnippet>534</a> f, |
| <a href=#535 id=535 data-nosnippet>535</a> <span class="string">":"</span>, |
| <a href=#536 id=536 data-nosnippet>536</a> Either::Left( |
| <a href=#537 id=537 data-nosnippet>537</a> <span class="kw-2">&</span>hir_ty::TyKind::Placeholder(hir_ty::to_placeholder_idx_no_index( |
| <a href=#538 id=538 data-nosnippet>538</a> f.db, |
| <a href=#539 id=539 data-nosnippet>539</a> <span class="self">self</span>.id.into(), |
| <a href=#540 id=540 data-nosnippet>540</a> )) |
| <a href=#541 id=541 data-nosnippet>541</a> .intern(Interner), |
| <a href=#542 id=542 data-nosnippet>542</a> ), |
| <a href=#543 id=543 data-nosnippet>543</a> <span class="kw-2">&</span>predicates, |
| <a href=#544 id=544 data-nosnippet>544</a> default_sized, |
| <a href=#545 id=545 data-nosnippet>545</a> )<span class="question-mark">?</span>; |
| <a href=#546 id=546 data-nosnippet>546</a> } |
| <a href=#547 id=547 data-nosnippet>547</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#548 id=548 data-nosnippet>548</a> } |
| <a href=#549 id=549 data-nosnippet>549</a>} |
| <a href=#550 id=550 data-nosnippet>550</a> |
| <a href=#551 id=551 data-nosnippet>551</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>LifetimeParam { |
| <a href=#552 id=552 data-nosnippet>552</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#553 id=553 data-nosnippet>553</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition())) |
| <a href=#554 id=554 data-nosnippet>554</a> } |
| <a href=#555 id=555 data-nosnippet>555</a>} |
| <a href=#556 id=556 data-nosnippet>556</a> |
| <a href=#557 id=557 data-nosnippet>557</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>ConstParam { |
| <a href=#558 id=558 data-nosnippet>558</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#559 id=559 data-nosnippet>559</a> <span class="macro">write!</span>(f, <span class="string">"const {}: "</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#560 id=560 data-nosnippet>560</a> <span class="self">self</span>.ty(f.db).hir_fmt(f) |
| <a href=#561 id=561 data-nosnippet>561</a> } |
| <a href=#562 id=562 data-nosnippet>562</a>} |
| <a href=#563 id=563 data-nosnippet>563</a> |
| <a href=#564 id=564 data-nosnippet>564</a><span class="kw">fn </span>write_generic_params( |
| <a href=#565 id=565 data-nosnippet>565</a> def: GenericDefId, |
| <a href=#566 id=566 data-nosnippet>566</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>, |
| <a href=#567 id=567 data-nosnippet>567</a>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#568 id=568 data-nosnippet>568</a> <span class="kw">let </span>(params, store) = f.db.generic_params_and_store(def); |
| <a href=#569 id=569 data-nosnippet>569</a> <span class="kw">if </span>params.iter_lt().next().is_none() |
| <a href=#570 id=570 data-nosnippet>570</a> && params.iter_type_or_consts().all(|it| it.<span class="number">1</span>.const_param().is_none()) |
| <a href=#571 id=571 data-nosnippet>571</a> && params |
| <a href=#572 id=572 data-nosnippet>572</a> .iter_type_or_consts() |
| <a href=#573 id=573 data-nosnippet>573</a> .filter_map(|it| it.<span class="number">1</span>.type_param()) |
| <a href=#574 id=574 data-nosnippet>574</a> .all(|param| !<span class="macro">matches!</span>(param.provenance, TypeParamProvenance::TypeParamList)) |
| <a href=#575 id=575 data-nosnippet>575</a> { |
| <a href=#576 id=576 data-nosnippet>576</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| <a href=#577 id=577 data-nosnippet>577</a> } |
| <a href=#578 id=578 data-nosnippet>578</a> f.write_char(<span class="string">'<'</span>)<span class="question-mark">?</span>; |
| <a href=#579 id=579 data-nosnippet>579</a> |
| <a href=#580 id=580 data-nosnippet>580</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#581 id=581 data-nosnippet>581</a> <span class="kw">let </span><span class="kw-2">mut </span>delim = |f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>| { |
| <a href=#582 id=582 data-nosnippet>582</a> <span class="kw">if </span>first { |
| <a href=#583 id=583 data-nosnippet>583</a> first = <span class="bool-val">false</span>; |
| <a href=#584 id=584 data-nosnippet>584</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#585 id=585 data-nosnippet>585</a> } <span class="kw">else </span>{ |
| <a href=#586 id=586 data-nosnippet>586</a> f.write_str(<span class="string">", "</span>) |
| <a href=#587 id=587 data-nosnippet>587</a> } |
| <a href=#588 id=588 data-nosnippet>588</a> }; |
| <a href=#589 id=589 data-nosnippet>589</a> <span class="kw">for </span>(<span class="kw">_</span>, lifetime) <span class="kw">in </span>params.iter_lt() { |
| <a href=#590 id=590 data-nosnippet>590</a> delim(f)<span class="question-mark">?</span>; |
| <a href=#591 id=591 data-nosnippet>591</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, lifetime.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#592 id=592 data-nosnippet>592</a> } |
| <a href=#593 id=593 data-nosnippet>593</a> <span class="kw">for </span>(<span class="kw">_</span>, ty) <span class="kw">in </span>params.iter_type_or_consts() { |
| <a href=#594 id=594 data-nosnippet>594</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(name) = <span class="kw-2">&</span>ty.name() { |
| <a href=#595 id=595 data-nosnippet>595</a> <span class="kw">match </span>ty { |
| <a href=#596 id=596 data-nosnippet>596</a> TypeOrConstParamData::TypeParamData(ty) => { |
| <a href=#597 id=597 data-nosnippet>597</a> <span class="kw">if </span>ty.provenance != TypeParamProvenance::TypeParamList { |
| <a href=#598 id=598 data-nosnippet>598</a> <span class="kw">continue</span>; |
| <a href=#599 id=599 data-nosnippet>599</a> } |
| <a href=#600 id=600 data-nosnippet>600</a> delim(f)<span class="question-mark">?</span>; |
| <a href=#601 id=601 data-nosnippet>601</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#602 id=602 data-nosnippet>602</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(default) = <span class="kw-2">&</span>ty.default { |
| <a href=#603 id=603 data-nosnippet>603</a> f.write_str(<span class="string">" = "</span>)<span class="question-mark">?</span>; |
| <a href=#604 id=604 data-nosnippet>604</a> default.hir_fmt(f, <span class="kw-2">&</span>store)<span class="question-mark">?</span>; |
| <a href=#605 id=605 data-nosnippet>605</a> } |
| <a href=#606 id=606 data-nosnippet>606</a> } |
| <a href=#607 id=607 data-nosnippet>607</a> TypeOrConstParamData::ConstParamData(c) => { |
| <a href=#608 id=608 data-nosnippet>608</a> delim(f)<span class="question-mark">?</span>; |
| <a href=#609 id=609 data-nosnippet>609</a> <span class="macro">write!</span>(f, <span class="string">"const {}: "</span>, name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#610 id=610 data-nosnippet>610</a> c.ty.hir_fmt(f, <span class="kw-2">&</span>store)<span class="question-mark">?</span>; |
| <a href=#611 id=611 data-nosnippet>611</a> |
| <a href=#612 id=612 data-nosnippet>612</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(default) = <span class="kw-2">&</span>c.default { |
| <a href=#613 id=613 data-nosnippet>613</a> f.write_str(<span class="string">" = "</span>)<span class="question-mark">?</span>; |
| <a href=#614 id=614 data-nosnippet>614</a> default.hir_fmt(f, <span class="kw-2">&</span>store)<span class="question-mark">?</span>; |
| <a href=#615 id=615 data-nosnippet>615</a> } |
| <a href=#616 id=616 data-nosnippet>616</a> } |
| <a href=#617 id=617 data-nosnippet>617</a> } |
| <a href=#618 id=618 data-nosnippet>618</a> } |
| <a href=#619 id=619 data-nosnippet>619</a> } |
| <a href=#620 id=620 data-nosnippet>620</a> |
| <a href=#621 id=621 data-nosnippet>621</a> f.write_char(<span class="string">'>'</span>)<span class="question-mark">?</span>; |
| <a href=#622 id=622 data-nosnippet>622</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#623 id=623 data-nosnippet>623</a>} |
| <a href=#624 id=624 data-nosnippet>624</a> |
| <a href=#625 id=625 data-nosnippet>625</a><span class="kw">fn </span>write_where_clause( |
| <a href=#626 id=626 data-nosnippet>626</a> def: GenericDefId, |
| <a href=#627 id=627 data-nosnippet>627</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>, |
| <a href=#628 id=628 data-nosnippet>628</a>) -> <span class="prelude-ty">Result</span><bool, HirDisplayError> { |
| <a href=#629 id=629 data-nosnippet>629</a> <span class="kw">let </span>(params, store) = f.db.generic_params_and_store(def); |
| <a href=#630 id=630 data-nosnippet>630</a> <span class="kw">if </span>!has_disaplayable_predicates(f.db, <span class="kw-2">&</span>params, <span class="kw-2">&</span>store) { |
| <a href=#631 id=631 data-nosnippet>631</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="bool-val">false</span>); |
| <a href=#632 id=632 data-nosnippet>632</a> } |
| <a href=#633 id=633 data-nosnippet>633</a> |
| <a href=#634 id=634 data-nosnippet>634</a> f.write_str(<span class="string">"\nwhere"</span>)<span class="question-mark">?</span>; |
| <a href=#635 id=635 data-nosnippet>635</a> write_where_predicates(<span class="kw-2">&</span>params, <span class="kw-2">&</span>store, f)<span class="question-mark">?</span>; |
| <a href=#636 id=636 data-nosnippet>636</a> |
| <a href=#637 id=637 data-nosnippet>637</a> <span class="prelude-val">Ok</span>(<span class="bool-val">true</span>) |
| <a href=#638 id=638 data-nosnippet>638</a>} |
| <a href=#639 id=639 data-nosnippet>639</a> |
| <a href=#640 id=640 data-nosnippet>640</a><span class="kw">fn </span>has_disaplayable_predicates( |
| <a href=#641 id=641 data-nosnippet>641</a> db: <span class="kw-2">&</span><span class="kw">dyn </span>HirDatabase, |
| <a href=#642 id=642 data-nosnippet>642</a> params: <span class="kw-2">&</span>GenericParams, |
| <a href=#643 id=643 data-nosnippet>643</a> store: <span class="kw-2">&</span>ExpressionStore, |
| <a href=#644 id=644 data-nosnippet>644</a>) -> bool { |
| <a href=#645 id=645 data-nosnippet>645</a> params.where_predicates().iter().any(|pred| { |
| <a href=#646 id=646 data-nosnippet>646</a> !<span class="macro">matches!</span>( |
| <a href=#647 id=647 data-nosnippet>647</a> pred, |
| <a href=#648 id=648 data-nosnippet>648</a> WherePredicate::TypeBound { target, .. } |
| <a href=#649 id=649 data-nosnippet>649</a> <span class="kw">if </span><span class="macro">matches!</span>(store[<span class="kw-2">*</span>target], |
| <a href=#650 id=650 data-nosnippet>650</a> TypeRef::TypeParam(id) <span class="kw">if </span>db.generic_params(id.parent())[id.local_id()].name().is_none() |
| <a href=#651 id=651 data-nosnippet>651</a> ) |
| <a href=#652 id=652 data-nosnippet>652</a> ) |
| <a href=#653 id=653 data-nosnippet>653</a> }) |
| <a href=#654 id=654 data-nosnippet>654</a>} |
| <a href=#655 id=655 data-nosnippet>655</a> |
| <a href=#656 id=656 data-nosnippet>656</a><span class="kw">fn </span>write_where_predicates( |
| <a href=#657 id=657 data-nosnippet>657</a> params: <span class="kw-2">&</span>GenericParams, |
| <a href=#658 id=658 data-nosnippet>658</a> store: <span class="kw-2">&</span>ExpressionStore, |
| <a href=#659 id=659 data-nosnippet>659</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>, |
| <a href=#660 id=660 data-nosnippet>660</a>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#661 id=661 data-nosnippet>661</a> <span class="kw">use </span>WherePredicate::<span class="kw-2">*</span>; |
| <a href=#662 id=662 data-nosnippet>662</a> |
| <a href=#663 id=663 data-nosnippet>663</a> <span class="comment">// unnamed type targets are displayed inline with the argument itself, e.g. `f: impl Y`. |
| <a href=#664 id=664 data-nosnippet>664</a> </span><span class="kw">let </span>is_unnamed_type_target = |target: TypeRefId| { |
| <a href=#665 id=665 data-nosnippet>665</a> <span class="macro">matches!</span>(store[target], |
| <a href=#666 id=666 data-nosnippet>666</a> TypeRef::TypeParam(id) <span class="kw">if </span>f.db.generic_params(id.parent())[id.local_id()].name().is_none() |
| <a href=#667 id=667 data-nosnippet>667</a> ) |
| <a href=#668 id=668 data-nosnippet>668</a> }; |
| <a href=#669 id=669 data-nosnippet>669</a> |
| <a href=#670 id=670 data-nosnippet>670</a> <span class="kw">let </span>check_same_target = |pred1: <span class="kw-2">&</span>WherePredicate, pred2: <span class="kw-2">&</span>WherePredicate| <span class="kw">match </span>(pred1, pred2) { |
| <a href=#671 id=671 data-nosnippet>671</a> (TypeBound { target: t1, .. }, TypeBound { target: t2, .. }) => t1 == t2, |
| <a href=#672 id=672 data-nosnippet>672</a> (Lifetime { target: t1, .. }, Lifetime { target: t2, .. }) => t1 == t2, |
| <a href=#673 id=673 data-nosnippet>673</a> ( |
| <a href=#674 id=674 data-nosnippet>674</a> ForLifetime { lifetimes: l1, target: t1, .. }, |
| <a href=#675 id=675 data-nosnippet>675</a> ForLifetime { lifetimes: l2, target: t2, .. }, |
| <a href=#676 id=676 data-nosnippet>676</a> ) => l1 == l2 && t1 == t2, |
| <a href=#677 id=677 data-nosnippet>677</a> <span class="kw">_ </span>=> <span class="bool-val">false</span>, |
| <a href=#678 id=678 data-nosnippet>678</a> }; |
| <a href=#679 id=679 data-nosnippet>679</a> |
| <a href=#680 id=680 data-nosnippet>680</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = params.where_predicates().iter().peekable(); |
| <a href=#681 id=681 data-nosnippet>681</a> <span class="kw">while let </span><span class="prelude-val">Some</span>(pred) = iter.next() { |
| <a href=#682 id=682 data-nosnippet>682</a> <span class="kw">if </span><span class="macro">matches!</span>(pred, TypeBound { target, .. } <span class="kw">if </span>is_unnamed_type_target(<span class="kw-2">*</span>target)) { |
| <a href=#683 id=683 data-nosnippet>683</a> <span class="kw">continue</span>; |
| <a href=#684 id=684 data-nosnippet>684</a> } |
| <a href=#685 id=685 data-nosnippet>685</a> |
| <a href=#686 id=686 data-nosnippet>686</a> f.write_str(<span class="string">"\n "</span>)<span class="question-mark">?</span>; |
| <a href=#687 id=687 data-nosnippet>687</a> <span class="kw">match </span>pred { |
| <a href=#688 id=688 data-nosnippet>688</a> TypeBound { target, bound } => { |
| <a href=#689 id=689 data-nosnippet>689</a> target.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#690 id=690 data-nosnippet>690</a> f.write_str(<span class="string">": "</span>)<span class="question-mark">?</span>; |
| <a href=#691 id=691 data-nosnippet>691</a> bound.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#692 id=692 data-nosnippet>692</a> } |
| <a href=#693 id=693 data-nosnippet>693</a> Lifetime { target, bound } => { |
| <a href=#694 id=694 data-nosnippet>694</a> target.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#695 id=695 data-nosnippet>695</a> <span class="macro">write!</span>(f, <span class="string">": "</span>)<span class="question-mark">?</span>; |
| <a href=#696 id=696 data-nosnippet>696</a> bound.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#697 id=697 data-nosnippet>697</a> } |
| <a href=#698 id=698 data-nosnippet>698</a> ForLifetime { lifetimes, target, bound } => { |
| <a href=#699 id=699 data-nosnippet>699</a> <span class="kw">let </span>lifetimes = lifetimes.iter().map(|it| it.display(f.db, f.edition())).join(<span class="string">", "</span>); |
| <a href=#700 id=700 data-nosnippet>700</a> <span class="macro">write!</span>(f, <span class="string">"for<{lifetimes}> "</span>)<span class="question-mark">?</span>; |
| <a href=#701 id=701 data-nosnippet>701</a> target.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#702 id=702 data-nosnippet>702</a> f.write_str(<span class="string">": "</span>)<span class="question-mark">?</span>; |
| <a href=#703 id=703 data-nosnippet>703</a> bound.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#704 id=704 data-nosnippet>704</a> } |
| <a href=#705 id=705 data-nosnippet>705</a> } |
| <a href=#706 id=706 data-nosnippet>706</a> |
| <a href=#707 id=707 data-nosnippet>707</a> <span class="kw">while let </span><span class="prelude-val">Some</span>(nxt) = iter.next_if(|nxt| check_same_target(pred, nxt)) { |
| <a href=#708 id=708 data-nosnippet>708</a> f.write_str(<span class="string">" + "</span>)<span class="question-mark">?</span>; |
| <a href=#709 id=709 data-nosnippet>709</a> <span class="kw">match </span>nxt { |
| <a href=#710 id=710 data-nosnippet>710</a> TypeBound { bound, .. } | ForLifetime { bound, .. } => bound.hir_fmt(f, store)<span class="question-mark">?</span>, |
| <a href=#711 id=711 data-nosnippet>711</a> Lifetime { bound, .. } => bound.hir_fmt(f, store)<span class="question-mark">?</span>, |
| <a href=#712 id=712 data-nosnippet>712</a> } |
| <a href=#713 id=713 data-nosnippet>713</a> } |
| <a href=#714 id=714 data-nosnippet>714</a> f.write_str(<span class="string">","</span>)<span class="question-mark">?</span>; |
| <a href=#715 id=715 data-nosnippet>715</a> } |
| <a href=#716 id=716 data-nosnippet>716</a> |
| <a href=#717 id=717 data-nosnippet>717</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#718 id=718 data-nosnippet>718</a>} |
| <a href=#719 id=719 data-nosnippet>719</a> |
| <a href=#720 id=720 data-nosnippet>720</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Const { |
| <a href=#721 id=721 data-nosnippet>721</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#722 id=722 data-nosnippet>722</a> <span class="kw">let </span>db = f.db; |
| <a href=#723 id=723 data-nosnippet>723</a> <span class="kw">let </span>container = <span class="self">self</span>.as_assoc_item(db).map(|it| it.container(db)); |
| <a href=#724 id=724 data-nosnippet>724</a> <span class="kw">let </span><span class="kw-2">mut </span>module = <span class="self">self</span>.module(db); |
| <a href=#725 id=725 data-nosnippet>725</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(AssocItemContainer::Impl(<span class="kw">_</span>)) = container { |
| <a href=#726 id=726 data-nosnippet>726</a> <span class="comment">// Block-local impls are "hoisted" to the nearest (non-block) module. |
| <a href=#727 id=727 data-nosnippet>727</a> </span>module = module.nearest_non_block_module(db); |
| <a href=#728 id=728 data-nosnippet>728</a> } |
| <a href=#729 id=729 data-nosnippet>729</a> write_visibility(module.id, <span class="self">self</span>.visibility(db), f)<span class="question-mark">?</span>; |
| <a href=#730 id=730 data-nosnippet>730</a> <span class="kw">let </span>data = db.const_signature(<span class="self">self</span>.id); |
| <a href=#731 id=731 data-nosnippet>731</a> f.write_str(<span class="string">"const "</span>)<span class="question-mark">?</span>; |
| <a href=#732 id=732 data-nosnippet>732</a> <span class="kw">match </span><span class="kw-2">&</span>data.name { |
| <a href=#733 id=733 data-nosnippet>733</a> <span class="prelude-val">Some</span>(name) => <span class="macro">write!</span>(f, <span class="string">"{}: "</span>, name.display(f.db, f.edition()))<span class="question-mark">?</span>, |
| <a href=#734 id=734 data-nosnippet>734</a> <span class="prelude-val">None </span>=> f.write_str(<span class="string">"_: "</span>)<span class="question-mark">?</span>, |
| <a href=#735 id=735 data-nosnippet>735</a> } |
| <a href=#736 id=736 data-nosnippet>736</a> data.type_ref.hir_fmt(f, <span class="kw-2">&</span>data.store)<span class="question-mark">?</span>; |
| <a href=#737 id=737 data-nosnippet>737</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#738 id=738 data-nosnippet>738</a> } |
| <a href=#739 id=739 data-nosnippet>739</a>} |
| <a href=#740 id=740 data-nosnippet>740</a> |
| <a href=#741 id=741 data-nosnippet>741</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Static { |
| <a href=#742 id=742 data-nosnippet>742</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#743 id=743 data-nosnippet>743</a> write_visibility(<span class="self">self</span>.module(f.db).id, <span class="self">self</span>.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#744 id=744 data-nosnippet>744</a> <span class="kw">let </span>data = f.db.static_signature(<span class="self">self</span>.id); |
| <a href=#745 id=745 data-nosnippet>745</a> f.write_str(<span class="string">"static "</span>)<span class="question-mark">?</span>; |
| <a href=#746 id=746 data-nosnippet>746</a> <span class="kw">if </span>data.flags.contains(StaticFlags::MUTABLE) { |
| <a href=#747 id=747 data-nosnippet>747</a> f.write_str(<span class="string">"mut "</span>)<span class="question-mark">?</span>; |
| <a href=#748 id=748 data-nosnippet>748</a> } |
| <a href=#749 id=749 data-nosnippet>749</a> <span class="macro">write!</span>(f, <span class="string">"{}: "</span>, data.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#750 id=750 data-nosnippet>750</a> data.type_ref.hir_fmt(f, <span class="kw-2">&</span>data.store)<span class="question-mark">?</span>; |
| <a href=#751 id=751 data-nosnippet>751</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#752 id=752 data-nosnippet>752</a> } |
| <a href=#753 id=753 data-nosnippet>753</a>} |
| <a href=#754 id=754 data-nosnippet>754</a> |
| <a href=#755 id=755 data-nosnippet>755</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>TraitRef<<span class="lifetime">'_</span>> { |
| <a href=#756 id=756 data-nosnippet>756</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#757 id=757 data-nosnippet>757</a> <span class="self">self</span>.trait_ref.hir_fmt(f) |
| <a href=#758 id=758 data-nosnippet>758</a> } |
| <a href=#759 id=759 data-nosnippet>759</a>} |
| <a href=#760 id=760 data-nosnippet>760</a> |
| <a href=#761 id=761 data-nosnippet>761</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Trait { |
| <a href=#762 id=762 data-nosnippet>762</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#763 id=763 data-nosnippet>763</a> <span class="comment">// FIXME(trait-alias) needs special handling to print the equal sign |
| <a href=#764 id=764 data-nosnippet>764</a> </span>write_trait_header(<span class="self">self</span>, f)<span class="question-mark">?</span>; |
| <a href=#765 id=765 data-nosnippet>765</a> <span class="kw">let </span>def_id = GenericDefId::TraitId(<span class="self">self</span>.id); |
| <a href=#766 id=766 data-nosnippet>766</a> <span class="kw">let </span>has_where_clause = write_where_clause(def_id, f)<span class="question-mark">?</span>; |
| <a href=#767 id=767 data-nosnippet>767</a> |
| <a href=#768 id=768 data-nosnippet>768</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(limit) = f.entity_limit { |
| <a href=#769 id=769 data-nosnippet>769</a> <span class="kw">let </span>assoc_items = <span class="self">self</span>.items(f.db); |
| <a href=#770 id=770 data-nosnippet>770</a> <span class="kw">let </span>count = assoc_items.len().min(limit); |
| <a href=#771 id=771 data-nosnippet>771</a> f.write_char(<span class="kw">if </span>!has_where_clause { <span class="string">' ' </span>} <span class="kw">else </span>{ <span class="string">'\n' </span>})<span class="question-mark">?</span>; |
| <a href=#772 id=772 data-nosnippet>772</a> <span class="kw">if </span>count == <span class="number">0 </span>{ |
| <a href=#773 id=773 data-nosnippet>773</a> <span class="kw">if </span>assoc_items.is_empty() { |
| <a href=#774 id=774 data-nosnippet>774</a> f.write_str(<span class="string">"{}"</span>)<span class="question-mark">?</span>; |
| <a href=#775 id=775 data-nosnippet>775</a> } <span class="kw">else </span>{ |
| <a href=#776 id=776 data-nosnippet>776</a> f.write_str(<span class="string">"{ /* … */ }"</span>)<span class="question-mark">?</span>; |
| <a href=#777 id=777 data-nosnippet>777</a> } |
| <a href=#778 id=778 data-nosnippet>778</a> } <span class="kw">else </span>{ |
| <a href=#779 id=779 data-nosnippet>779</a> f.write_str(<span class="string">"{\n"</span>)<span class="question-mark">?</span>; |
| <a href=#780 id=780 data-nosnippet>780</a> <span class="kw">for </span>item <span class="kw">in </span><span class="kw-2">&</span>assoc_items[..count] { |
| <a href=#781 id=781 data-nosnippet>781</a> f.write_str(<span class="string">" "</span>)<span class="question-mark">?</span>; |
| <a href=#782 id=782 data-nosnippet>782</a> <span class="kw">match </span>item { |
| <a href=#783 id=783 data-nosnippet>783</a> AssocItem::Function(func) => func.hir_fmt(f), |
| <a href=#784 id=784 data-nosnippet>784</a> AssocItem::Const(cst) => cst.hir_fmt(f), |
| <a href=#785 id=785 data-nosnippet>785</a> AssocItem::TypeAlias(type_alias) => type_alias.hir_fmt(f), |
| <a href=#786 id=786 data-nosnippet>786</a> }<span class="question-mark">?</span>; |
| <a href=#787 id=787 data-nosnippet>787</a> f.write_str(<span class="string">";\n"</span>)<span class="question-mark">?</span>; |
| <a href=#788 id=788 data-nosnippet>788</a> } |
| <a href=#789 id=789 data-nosnippet>789</a> |
| <a href=#790 id=790 data-nosnippet>790</a> <span class="kw">if </span>assoc_items.len() > count { |
| <a href=#791 id=791 data-nosnippet>791</a> f.write_str(<span class="string">" /* … */\n"</span>)<span class="question-mark">?</span>; |
| <a href=#792 id=792 data-nosnippet>792</a> } |
| <a href=#793 id=793 data-nosnippet>793</a> f.write_str(<span class="string">"}"</span>)<span class="question-mark">?</span>; |
| <a href=#794 id=794 data-nosnippet>794</a> } |
| <a href=#795 id=795 data-nosnippet>795</a> } |
| <a href=#796 id=796 data-nosnippet>796</a> |
| <a href=#797 id=797 data-nosnippet>797</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#798 id=798 data-nosnippet>798</a> } |
| <a href=#799 id=799 data-nosnippet>799</a>} |
| <a href=#800 id=800 data-nosnippet>800</a> |
| <a href=#801 id=801 data-nosnippet>801</a><span class="kw">fn </span>write_trait_header(trait_: <span class="kw-2">&</span>Trait, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#802 id=802 data-nosnippet>802</a> write_visibility(trait_.module(f.db).id, trait_.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#803 id=803 data-nosnippet>803</a> <span class="kw">let </span>data = f.db.trait_signature(trait_.id); |
| <a href=#804 id=804 data-nosnippet>804</a> <span class="kw">if </span>data.flags.contains(TraitFlags::UNSAFE) { |
| <a href=#805 id=805 data-nosnippet>805</a> f.write_str(<span class="string">"unsafe "</span>)<span class="question-mark">?</span>; |
| <a href=#806 id=806 data-nosnippet>806</a> } |
| <a href=#807 id=807 data-nosnippet>807</a> <span class="kw">if </span>data.flags.contains(TraitFlags::AUTO) { |
| <a href=#808 id=808 data-nosnippet>808</a> f.write_str(<span class="string">"auto "</span>)<span class="question-mark">?</span>; |
| <a href=#809 id=809 data-nosnippet>809</a> } |
| <a href=#810 id=810 data-nosnippet>810</a> <span class="macro">write!</span>(f, <span class="string">"trait {}"</span>, data.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#811 id=811 data-nosnippet>811</a> write_generic_params(GenericDefId::TraitId(trait_.id), f)<span class="question-mark">?</span>; |
| <a href=#812 id=812 data-nosnippet>812</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#813 id=813 data-nosnippet>813</a>} |
| <a href=#814 id=814 data-nosnippet>814</a> |
| <a href=#815 id=815 data-nosnippet>815</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>TypeAlias { |
| <a href=#816 id=816 data-nosnippet>816</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#817 id=817 data-nosnippet>817</a> write_visibility(<span class="self">self</span>.module(f.db).id, <span class="self">self</span>.visibility(f.db), f)<span class="question-mark">?</span>; |
| <a href=#818 id=818 data-nosnippet>818</a> <span class="kw">let </span>data = f.db.type_alias_signature(<span class="self">self</span>.id); |
| <a href=#819 id=819 data-nosnippet>819</a> <span class="macro">write!</span>(f, <span class="string">"type {}"</span>, data.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#820 id=820 data-nosnippet>820</a> <span class="kw">let </span>def_id = GenericDefId::TypeAliasId(<span class="self">self</span>.id); |
| <a href=#821 id=821 data-nosnippet>821</a> write_generic_params(def_id, f)<span class="question-mark">?</span>; |
| <a href=#822 id=822 data-nosnippet>822</a> <span class="kw">if </span>!data.bounds.is_empty() { |
| <a href=#823 id=823 data-nosnippet>823</a> f.write_str(<span class="string">": "</span>)<span class="question-mark">?</span>; |
| <a href=#824 id=824 data-nosnippet>824</a> f.write_joined( |
| <a href=#825 id=825 data-nosnippet>825</a> data.bounds.iter().map(|bound| hir_display_with_store(bound, <span class="kw-2">&</span>data.store)), |
| <a href=#826 id=826 data-nosnippet>826</a> <span class="string">" + "</span>, |
| <a href=#827 id=827 data-nosnippet>827</a> )<span class="question-mark">?</span>; |
| <a href=#828 id=828 data-nosnippet>828</a> } |
| <a href=#829 id=829 data-nosnippet>829</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(ty) = data.ty { |
| <a href=#830 id=830 data-nosnippet>830</a> f.write_str(<span class="string">" = "</span>)<span class="question-mark">?</span>; |
| <a href=#831 id=831 data-nosnippet>831</a> ty.hir_fmt(f, <span class="kw-2">&</span>data.store)<span class="question-mark">?</span>; |
| <a href=#832 id=832 data-nosnippet>832</a> } |
| <a href=#833 id=833 data-nosnippet>833</a> write_where_clause(def_id, f)<span class="question-mark">?</span>; |
| <a href=#834 id=834 data-nosnippet>834</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#835 id=835 data-nosnippet>835</a> } |
| <a href=#836 id=836 data-nosnippet>836</a>} |
| <a href=#837 id=837 data-nosnippet>837</a> |
| <a href=#838 id=838 data-nosnippet>838</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Module { |
| <a href=#839 id=839 data-nosnippet>839</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#840 id=840 data-nosnippet>840</a> <span class="kw">match </span><span class="self">self</span>.parent(f.db) { |
| <a href=#841 id=841 data-nosnippet>841</a> <span class="prelude-val">Some</span>(m) => write_visibility(m.id, <span class="self">self</span>.visibility(f.db), f)<span class="question-mark">?</span>, |
| <a href=#842 id=842 data-nosnippet>842</a> <span class="prelude-val">None </span>=> { |
| <a href=#843 id=843 data-nosnippet>843</a> <span class="kw">return match </span><span class="self">self</span>.krate(f.db).display_name(f.db) { |
| <a href=#844 id=844 data-nosnippet>844</a> <span class="prelude-val">Some</span>(name) => <span class="macro">write!</span>(f, <span class="string">"extern crate {name}"</span>), |
| <a href=#845 id=845 data-nosnippet>845</a> <span class="prelude-val">None </span>=> f.write_str(<span class="string">"extern crate {unknown}"</span>), |
| <a href=#846 id=846 data-nosnippet>846</a> }; |
| <a href=#847 id=847 data-nosnippet>847</a> } |
| <a href=#848 id=848 data-nosnippet>848</a> } |
| <a href=#849 id=849 data-nosnippet>849</a> <span class="kw">match </span><span class="self">self</span>.name(f.db) { |
| <a href=#850 id=850 data-nosnippet>850</a> <span class="prelude-val">Some</span>(name) => <span class="macro">write!</span>(f, <span class="string">"mod {}"</span>, name.display(f.db, f.edition())), |
| <a href=#851 id=851 data-nosnippet>851</a> <span class="prelude-val">None </span>=> f.write_str(<span class="string">"mod {unknown}"</span>), |
| <a href=#852 id=852 data-nosnippet>852</a> } |
| <a href=#853 id=853 data-nosnippet>853</a> } |
| <a href=#854 id=854 data-nosnippet>854</a>} |
| <a href=#855 id=855 data-nosnippet>855</a> |
| <a href=#856 id=856 data-nosnippet>856</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Crate { |
| <a href=#857 id=857 data-nosnippet>857</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#858 id=858 data-nosnippet>858</a> <span class="kw">match </span><span class="self">self</span>.display_name(f.db) { |
| <a href=#859 id=859 data-nosnippet>859</a> <span class="prelude-val">Some</span>(name) => <span class="macro">write!</span>(f, <span class="string">"extern crate {name}"</span>), |
| <a href=#860 id=860 data-nosnippet>860</a> <span class="prelude-val">None </span>=> f.write_str(<span class="string">"extern crate {unknown}"</span>), |
| <a href=#861 id=861 data-nosnippet>861</a> } |
| <a href=#862 id=862 data-nosnippet>862</a> } |
| <a href=#863 id=863 data-nosnippet>863</a>} |
| <a href=#864 id=864 data-nosnippet>864</a> |
| <a href=#865 id=865 data-nosnippet>865</a><span class="kw">impl </span>HirDisplay <span class="kw">for </span>Macro { |
| <a href=#866 id=866 data-nosnippet>866</a> <span class="kw">fn </span>hir_fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), HirDisplayError> { |
| <a href=#867 id=867 data-nosnippet>867</a> <span class="kw">match </span><span class="self">self</span>.id { |
| <a href=#868 id=868 data-nosnippet>868</a> hir_def::MacroId::Macro2Id(<span class="kw">_</span>) => f.write_str(<span class="string">"macro"</span>), |
| <a href=#869 id=869 data-nosnippet>869</a> hir_def::MacroId::MacroRulesId(<span class="kw">_</span>) => f.write_str(<span class="string">"macro_rules!"</span>), |
| <a href=#870 id=870 data-nosnippet>870</a> hir_def::MacroId::ProcMacroId(<span class="kw">_</span>) => f.write_str(<span class="string">"proc_macro"</span>), |
| <a href=#871 id=871 data-nosnippet>871</a> }<span class="question-mark">?</span>; |
| <a href=#872 id=872 data-nosnippet>872</a> <span class="macro">write!</span>(f, <span class="string">" {}"</span>, <span class="self">self</span>.name(f.db).display(f.db, f.edition())) |
| <a href=#873 id=873 data-nosnippet>873</a> } |
| <a href=#874 id=874 data-nosnippet>874</a>}</code></pre></div></section></main></body></html> |
