| <!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-ty/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"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-77263533.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="hir_ty" data-themes="" data-resource-suffix="" data-rustdoc-version="1.94.0 (4a4ef493e 2026-03-02)" data-channel="1.94.0" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-b897f86f.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-7bab91a1.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-ffcac47a.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">hir_ty/</div>display.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-4"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="doccomment">//! The `HirDisplay` trait, which serves two purposes: Turning various bits from |
| <a href=#2 id=2 data-nosnippet>2</a>//! HIR back into source code, and just displaying them for debugging/testing |
| <a href=#3 id=3 data-nosnippet>3</a>//! purposes. |
| <a href=#4 id=4 data-nosnippet>4</a> |
| <a href=#5 id=5 data-nosnippet>5</a></span><span class="kw">use </span>std::{ |
| <a href=#6 id=6 data-nosnippet>6</a> fmt::{<span class="self">self</span>, Debug}, |
| <a href=#7 id=7 data-nosnippet>7</a> mem, |
| <a href=#8 id=8 data-nosnippet>8</a>}; |
| <a href=#9 id=9 data-nosnippet>9</a> |
| <a href=#10 id=10 data-nosnippet>10</a><span class="kw">use </span>base_db::{Crate, FxIndexMap}; |
| <a href=#11 id=11 data-nosnippet>11</a><span class="kw">use </span>either::Either; |
| <a href=#12 id=12 data-nosnippet>12</a><span class="kw">use </span>hir_def::{ |
| <a href=#13 id=13 data-nosnippet>13</a> FindPathConfig, GenericDefId, GenericParamId, HasModule, LocalFieldId, Lookup, ModuleDefId, |
| <a href=#14 id=14 data-nosnippet>14</a> ModuleId, TraitId, |
| <a href=#15 id=15 data-nosnippet>15</a> expr_store::{ExpressionStore, path::Path}, |
| <a href=#16 id=16 data-nosnippet>16</a> find_path::{<span class="self">self</span>, PrefixKind}, |
| <a href=#17 id=17 data-nosnippet>17</a> hir::generics::{TypeOrConstParamData, TypeParamProvenance, WherePredicate}, |
| <a href=#18 id=18 data-nosnippet>18</a> item_scope::ItemInNs, |
| <a href=#19 id=19 data-nosnippet>19</a> item_tree::FieldsShape, |
| <a href=#20 id=20 data-nosnippet>20</a> lang_item::LangItems, |
| <a href=#21 id=21 data-nosnippet>21</a> signatures::VariantFields, |
| <a href=#22 id=22 data-nosnippet>22</a> type_ref::{ |
| <a href=#23 id=23 data-nosnippet>23</a> ConstRef, LifetimeRef, LifetimeRefId, TraitBoundModifier, TypeBound, TypeRef, TypeRefId, |
| <a href=#24 id=24 data-nosnippet>24</a> UseArgRef, |
| <a href=#25 id=25 data-nosnippet>25</a> }, |
| <a href=#26 id=26 data-nosnippet>26</a> visibility::Visibility, |
| <a href=#27 id=27 data-nosnippet>27</a>}; |
| <a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span>hir_expand::{mod_path::PathKind, name::Name}; |
| <a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span>intern::{Internable, Interned, sym}; |
| <a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span>itertools::Itertools; |
| <a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span>la_arena::ArenaMap; |
| <a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span>rustc_apfloat::{ |
| <a href=#33 id=33 data-nosnippet>33</a> Float, |
| <a href=#34 id=34 data-nosnippet>34</a> ieee::{Half <span class="kw">as </span>f16, Quad <span class="kw">as </span>f128}, |
| <a href=#35 id=35 data-nosnippet>35</a>}; |
| <a href=#36 id=36 data-nosnippet>36</a><span class="kw">use </span>rustc_ast_ir::FloatTy; |
| <a href=#37 id=37 data-nosnippet>37</a><span class="kw">use </span>rustc_hash::FxHashSet; |
| <a href=#38 id=38 data-nosnippet>38</a><span class="kw">use </span>rustc_type_ir::{ |
| <a href=#39 id=39 data-nosnippet>39</a> AliasTyKind, BoundVarIndexKind, CoroutineArgsParts, CoroutineClosureArgsParts, RegionKind, |
| <a href=#40 id=40 data-nosnippet>40</a> Upcast, |
| <a href=#41 id=41 data-nosnippet>41</a> inherent::{AdtDef, GenericArgs <span class="kw">as _</span>, IntoKind, Term <span class="kw">as _</span>, Ty <span class="kw">as _</span>, Tys <span class="kw">as _</span>}, |
| <a href=#42 id=42 data-nosnippet>42</a>}; |
| <a href=#43 id=43 data-nosnippet>43</a><span class="kw">use </span>smallvec::SmallVec; |
| <a href=#44 id=44 data-nosnippet>44</a><span class="kw">use </span>span::Edition; |
| <a href=#45 id=45 data-nosnippet>45</a><span class="kw">use </span>stdx::never; |
| <a href=#46 id=46 data-nosnippet>46</a> |
| <a href=#47 id=47 data-nosnippet>47</a><span class="kw">use </span>crate::{ |
| <a href=#48 id=48 data-nosnippet>48</a> CallableDefId, FnAbi, ImplTraitId, InferenceResult, MemoryMap, ParamEnvAndCrate, consteval, |
| <a href=#49 id=49 data-nosnippet>49</a> db::{HirDatabase, InternedClosure, InternedCoroutine}, |
| <a href=#50 id=50 data-nosnippet>50</a> generics::generics, |
| <a href=#51 id=51 data-nosnippet>51</a> layout::Layout, |
| <a href=#52 id=52 data-nosnippet>52</a> lower::GenericPredicates, |
| <a href=#53 id=53 data-nosnippet>53</a> mir::pad16, |
| <a href=#54 id=54 data-nosnippet>54</a> next_solver::{ |
| <a href=#55 id=55 data-nosnippet>55</a> AliasTy, Clause, ClauseKind, Const, ConstKind, DbInterner, ExistentialPredicate, FnSig, |
| <a href=#56 id=56 data-nosnippet>56</a> GenericArg, GenericArgKind, GenericArgs, ParamEnv, PolyFnSig, Region, SolverDefId, |
| <a href=#57 id=57 data-nosnippet>57</a> StoredEarlyBinder, StoredTy, Term, TermKind, TraitRef, Ty, TyKind, TypingMode, |
| <a href=#58 id=58 data-nosnippet>58</a> abi::Safety, |
| <a href=#59 id=59 data-nosnippet>59</a> infer::{DbInternerInferExt, traits::ObligationCause}, |
| <a href=#60 id=60 data-nosnippet>60</a> }, |
| <a href=#61 id=61 data-nosnippet>61</a> primitive, |
| <a href=#62 id=62 data-nosnippet>62</a> utils::{detect_variant_from_bytes, fn_traits}, |
| <a href=#63 id=63 data-nosnippet>63</a>}; |
| <a href=#64 id=64 data-nosnippet>64</a> |
| <a href=#65 id=65 data-nosnippet>65</a><span class="kw">pub type </span><span class="prelude-ty">Result</span><T = (), E = HirDisplayError> = std::result::Result<T, E>; |
| <a href=#66 id=66 data-nosnippet>66</a> |
| <a href=#67 id=67 data-nosnippet>67</a><span class="kw">pub trait </span>HirWrite: fmt::Write { |
| <a href=#68 id=68 data-nosnippet>68</a> <span class="kw">fn </span>start_location_link(<span class="kw-2">&mut </span><span class="self">self</span>, _location: ModuleDefId) {} |
| <a href=#69 id=69 data-nosnippet>69</a> <span class="kw">fn </span>start_location_link_generic(<span class="kw-2">&mut </span><span class="self">self</span>, _location: GenericParamId) {} |
| <a href=#70 id=70 data-nosnippet>70</a> <span class="kw">fn </span>end_location_link(<span class="kw-2">&mut </span><span class="self">self</span>) {} |
| <a href=#71 id=71 data-nosnippet>71</a>} |
| <a href=#72 id=72 data-nosnippet>72</a> |
| <a href=#73 id=73 data-nosnippet>73</a><span class="comment">// String will ignore link metadata |
| <a href=#74 id=74 data-nosnippet>74</a></span><span class="kw">impl </span>HirWrite <span class="kw">for </span>String {} |
| <a href=#75 id=75 data-nosnippet>75</a> |
| <a href=#76 id=76 data-nosnippet>76</a><span class="comment">// `core::Formatter` will ignore metadata |
| <a href=#77 id=77 data-nosnippet>77</a></span><span class="kw">impl </span>HirWrite <span class="kw">for </span>fmt::Formatter<<span class="lifetime">'_</span>> {} |
| <a href=#78 id=78 data-nosnippet>78</a> |
| <a href=#79 id=79 data-nosnippet>79</a><span class="kw">pub struct </span>HirFormatter<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>> { |
| <a href=#80 id=80 data-nosnippet>80</a> <span class="doccomment">/// The database handle |
| <a href=#81 id=81 data-nosnippet>81</a> </span><span class="kw">pub </span>db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#82 id=82 data-nosnippet>82</a> <span class="kw">pub </span>interner: DbInterner<<span class="lifetime">'db</span>>, |
| <a href=#83 id=83 data-nosnippet>83</a> <span class="doccomment">/// The sink to write into |
| <a href=#84 id=84 data-nosnippet>84</a> </span>fmt: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span><span class="kw">dyn </span>HirWrite, |
| <a href=#85 id=85 data-nosnippet>85</a> <span class="doccomment">/// A buffer to intercept writes with, this allows us to track the overall size of the formatted output. |
| <a href=#86 id=86 data-nosnippet>86</a> </span>buf: String, |
| <a href=#87 id=87 data-nosnippet>87</a> <span class="doccomment">/// The current size of the formatted output. |
| <a href=#88 id=88 data-nosnippet>88</a> </span>curr_size: usize, |
| <a href=#89 id=89 data-nosnippet>89</a> <span class="doccomment">/// Size from which we should truncate the output. |
| <a href=#90 id=90 data-nosnippet>90</a> </span>max_size: <span class="prelude-ty">Option</span><usize>, |
| <a href=#91 id=91 data-nosnippet>91</a> <span class="doccomment">/// When rendering something that has a concept of "children" (like fields in a struct), this limits |
| <a href=#92 id=92 data-nosnippet>92</a> /// how many should be rendered. |
| <a href=#93 id=93 data-nosnippet>93</a> </span><span class="kw">pub </span>entity_limit: <span class="prelude-ty">Option</span><usize>, |
| <a href=#94 id=94 data-nosnippet>94</a> <span class="doccomment">/// When rendering functions, whether to show the constraint from the container |
| <a href=#95 id=95 data-nosnippet>95</a> </span>show_container_bounds: bool, |
| <a href=#96 id=96 data-nosnippet>96</a> omit_verbose_types: bool, |
| <a href=#97 id=97 data-nosnippet>97</a> closure_style: ClosureStyle, |
| <a href=#98 id=98 data-nosnippet>98</a> display_lifetimes: DisplayLifetime, |
| <a href=#99 id=99 data-nosnippet>99</a> display_kind: DisplayKind, |
| <a href=#100 id=100 data-nosnippet>100</a> display_target: DisplayTarget, |
| <a href=#101 id=101 data-nosnippet>101</a> bounds_formatting_ctx: BoundsFormattingCtx<<span class="lifetime">'db</span>>, |
| <a href=#102 id=102 data-nosnippet>102</a> <span class="doccomment">/// Whether formatting `impl Trait1 + Trait2` or `dyn Trait1 + Trait2` needs parentheses around it, |
| <a href=#103 id=103 data-nosnippet>103</a> /// for example when formatting `&(impl Trait1 + Trait2)`. |
| <a href=#104 id=104 data-nosnippet>104</a> </span>trait_bounds_need_parens: bool, |
| <a href=#105 id=105 data-nosnippet>105</a>} |
| <a href=#106 id=106 data-nosnippet>106</a> |
| <a href=#107 id=107 data-nosnippet>107</a><span class="comment">// FIXME: To consider, ref and dyn trait lifetimes can be omitted if they are `'_`, path args should |
| <a href=#108 id=108 data-nosnippet>108</a>// not be when in signatures |
| <a href=#109 id=109 data-nosnippet>109</a>// So this enum does not encode this well enough |
| <a href=#110 id=110 data-nosnippet>110</a>// Also 'static can be omitted for ref and dyn trait lifetimes in static/const item types |
| <a href=#111 id=111 data-nosnippet>111</a>// FIXME: Also named lifetimes may be rendered in places where their name is not in scope? |
| <a href=#112 id=112 data-nosnippet>112</a></span><span class="attr">#[derive(Copy, Clone)] |
| <a href=#113 id=113 data-nosnippet>113</a></span><span class="kw">pub enum </span>DisplayLifetime { |
| <a href=#114 id=114 data-nosnippet>114</a> Always, |
| <a href=#115 id=115 data-nosnippet>115</a> OnlyStatic, |
| <a href=#116 id=116 data-nosnippet>116</a> OnlyNamed, |
| <a href=#117 id=117 data-nosnippet>117</a> OnlyNamedOrStatic, |
| <a href=#118 id=118 data-nosnippet>118</a> Never, |
| <a href=#119 id=119 data-nosnippet>119</a>} |
| <a href=#120 id=120 data-nosnippet>120</a> |
| <a href=#121 id=121 data-nosnippet>121</a><span class="attr">#[derive(Default)] |
| <a href=#122 id=122 data-nosnippet>122</a></span><span class="kw">enum </span>BoundsFormattingCtx<<span class="lifetime">'db</span>> { |
| <a href=#123 id=123 data-nosnippet>123</a> Entered { |
| <a href=#124 id=124 data-nosnippet>124</a> <span class="doccomment">/// We can have recursive bounds like the following case: |
| <a href=#125 id=125 data-nosnippet>125</a> /// ```ignore |
| <a href=#126 id=126 data-nosnippet>126</a> /// where |
| <a href=#127 id=127 data-nosnippet>127</a> /// T: Foo, |
| <a href=#128 id=128 data-nosnippet>128</a> /// T::FooAssoc: Baz<<T::FooAssoc as Bar>::BarAssoc> + Bar |
| <a href=#129 id=129 data-nosnippet>129</a> /// ``` |
| <a href=#130 id=130 data-nosnippet>130</a> /// So, record the projection types met while formatting bounds and |
| <a href=#131 id=131 data-nosnippet>131</a> </span><span class="comment">//. prevent recursing into their bounds to avoid infinite loops. |
| <a href=#132 id=132 data-nosnippet>132</a> </span>projection_tys_met: FxHashSet<AliasTy<<span class="lifetime">'db</span>>>, |
| <a href=#133 id=133 data-nosnippet>133</a> }, |
| <a href=#134 id=134 data-nosnippet>134</a> <span class="attr">#[default] |
| <a href=#135 id=135 data-nosnippet>135</a> </span>Exited, |
| <a href=#136 id=136 data-nosnippet>136</a>} |
| <a href=#137 id=137 data-nosnippet>137</a> |
| <a href=#138 id=138 data-nosnippet>138</a><span class="kw">impl</span><<span class="lifetime">'db</span>> BoundsFormattingCtx<<span class="lifetime">'db</span>> { |
| <a href=#139 id=139 data-nosnippet>139</a> <span class="kw">fn </span>contains(<span class="kw-2">&</span><span class="self">self</span>, proj: <span class="kw-2">&</span>AliasTy<<span class="lifetime">'db</span>>) -> bool { |
| <a href=#140 id=140 data-nosnippet>140</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#141 id=141 data-nosnippet>141</a> BoundsFormattingCtx::Entered { projection_tys_met } => { |
| <a href=#142 id=142 data-nosnippet>142</a> projection_tys_met.contains(proj) |
| <a href=#143 id=143 data-nosnippet>143</a> } |
| <a href=#144 id=144 data-nosnippet>144</a> BoundsFormattingCtx::Exited => <span class="bool-val">false</span>, |
| <a href=#145 id=145 data-nosnippet>145</a> } |
| <a href=#146 id=146 data-nosnippet>146</a> } |
| <a href=#147 id=147 data-nosnippet>147</a>} |
| <a href=#148 id=148 data-nosnippet>148</a> |
| <a href=#149 id=149 data-nosnippet>149</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>> { |
| <a href=#150 id=150 data-nosnippet>150</a> <span class="kw">pub fn </span>start_location_link(<span class="kw-2">&mut </span><span class="self">self</span>, location: ModuleDefId) { |
| <a href=#151 id=151 data-nosnippet>151</a> <span class="self">self</span>.fmt.start_location_link(location); |
| <a href=#152 id=152 data-nosnippet>152</a> } |
| <a href=#153 id=153 data-nosnippet>153</a> |
| <a href=#154 id=154 data-nosnippet>154</a> <span class="kw">pub fn </span>start_location_link_generic(<span class="kw-2">&mut </span><span class="self">self</span>, location: GenericParamId) { |
| <a href=#155 id=155 data-nosnippet>155</a> <span class="self">self</span>.fmt.start_location_link_generic(location); |
| <a href=#156 id=156 data-nosnippet>156</a> } |
| <a href=#157 id=157 data-nosnippet>157</a> |
| <a href=#158 id=158 data-nosnippet>158</a> <span class="kw">pub fn </span>end_location_link(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <a href=#159 id=159 data-nosnippet>159</a> <span class="self">self</span>.fmt.end_location_link(); |
| <a href=#160 id=160 data-nosnippet>160</a> } |
| <a href=#161 id=161 data-nosnippet>161</a> |
| <a href=#162 id=162 data-nosnippet>162</a> <span class="kw">fn </span>format_bounds_with<T, F: FnOnce(<span class="kw-2">&mut </span><span class="self">Self</span>) -> T>( |
| <a href=#163 id=163 data-nosnippet>163</a> <span class="kw-2">&mut </span><span class="self">self</span>, |
| <a href=#164 id=164 data-nosnippet>164</a> target: AliasTy<<span class="lifetime">'db</span>>, |
| <a href=#165 id=165 data-nosnippet>165</a> format_bounds: F, |
| <a href=#166 id=166 data-nosnippet>166</a> ) -> T { |
| <a href=#167 id=167 data-nosnippet>167</a> <span class="kw">match </span><span class="self">self</span>.bounds_formatting_ctx { |
| <a href=#168 id=168 data-nosnippet>168</a> BoundsFormattingCtx::Entered { <span class="kw-2">ref mut </span>projection_tys_met } => { |
| <a href=#169 id=169 data-nosnippet>169</a> projection_tys_met.insert(target); |
| <a href=#170 id=170 data-nosnippet>170</a> format_bounds(<span class="self">self</span>) |
| <a href=#171 id=171 data-nosnippet>171</a> } |
| <a href=#172 id=172 data-nosnippet>172</a> BoundsFormattingCtx::Exited => { |
| <a href=#173 id=173 data-nosnippet>173</a> <span class="kw">let </span><span class="kw-2">mut </span>projection_tys_met = FxHashSet::default(); |
| <a href=#174 id=174 data-nosnippet>174</a> projection_tys_met.insert(target); |
| <a href=#175 id=175 data-nosnippet>175</a> <span class="self">self</span>.bounds_formatting_ctx = BoundsFormattingCtx::Entered { projection_tys_met }; |
| <a href=#176 id=176 data-nosnippet>176</a> <span class="kw">let </span>res = format_bounds(<span class="self">self</span>); |
| <a href=#177 id=177 data-nosnippet>177</a> <span class="comment">// Since we want to prevent only the infinite recursions in bounds formatting |
| <a href=#178 id=178 data-nosnippet>178</a> // and do not want to skip formatting of other separate bounds, clear context |
| <a href=#179 id=179 data-nosnippet>179</a> // when exiting the formatting of outermost bounds |
| <a href=#180 id=180 data-nosnippet>180</a> </span><span class="self">self</span>.bounds_formatting_ctx = BoundsFormattingCtx::Exited; |
| <a href=#181 id=181 data-nosnippet>181</a> res |
| <a href=#182 id=182 data-nosnippet>182</a> } |
| <a href=#183 id=183 data-nosnippet>183</a> } |
| <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> <span class="kw">fn </span>render_region(<span class="kw-2">&</span><span class="self">self</span>, lifetime: Region<<span class="lifetime">'db</span>>) -> bool { |
| <a href=#187 id=187 data-nosnippet>187</a> <span class="kw">match </span><span class="self">self</span>.display_lifetimes { |
| <a href=#188 id=188 data-nosnippet>188</a> DisplayLifetime::Always => <span class="bool-val">true</span>, |
| <a href=#189 id=189 data-nosnippet>189</a> DisplayLifetime::OnlyStatic => <span class="macro">matches!</span>(lifetime.kind(), RegionKind::ReStatic), |
| <a href=#190 id=190 data-nosnippet>190</a> DisplayLifetime::OnlyNamed => { |
| <a href=#191 id=191 data-nosnippet>191</a> <span class="macro">matches!</span>(lifetime.kind(), RegionKind::ReEarlyParam(<span class="kw">_</span>)) |
| <a href=#192 id=192 data-nosnippet>192</a> } |
| <a href=#193 id=193 data-nosnippet>193</a> DisplayLifetime::OnlyNamedOrStatic => { |
| <a href=#194 id=194 data-nosnippet>194</a> <span class="macro">matches!</span>(lifetime.kind(), RegionKind::ReStatic | RegionKind::ReEarlyParam(<span class="kw">_</span>)) |
| <a href=#195 id=195 data-nosnippet>195</a> } |
| <a href=#196 id=196 data-nosnippet>196</a> DisplayLifetime::Never => <span class="bool-val">false</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>} |
| <a href=#200 id=200 data-nosnippet>200</a> |
| <a href=#201 id=201 data-nosnippet>201</a><span class="kw">pub trait </span>HirDisplay<<span class="lifetime">'db</span>> { |
| <a href=#202 id=202 data-nosnippet>202</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result</span>; |
| <a href=#203 id=203 data-nosnippet>203</a> |
| <a href=#204 id=204 data-nosnippet>204</a> <span class="doccomment">/// Returns a `Display`able type that is human-readable. |
| <a href=#205 id=205 data-nosnippet>205</a> </span><span class="kw">fn </span>into_displayable<<span class="lifetime">'a</span>>( |
| <a href=#206 id=206 data-nosnippet>206</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#207 id=207 data-nosnippet>207</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#208 id=208 data-nosnippet>208</a> max_size: <span class="prelude-ty">Option</span><usize>, |
| <a href=#209 id=209 data-nosnippet>209</a> limited_size: <span class="prelude-ty">Option</span><usize>, |
| <a href=#210 id=210 data-nosnippet>210</a> omit_verbose_types: bool, |
| <a href=#211 id=211 data-nosnippet>211</a> display_target: DisplayTarget, |
| <a href=#212 id=212 data-nosnippet>212</a> display_kind: DisplayKind, |
| <a href=#213 id=213 data-nosnippet>213</a> closure_style: ClosureStyle, |
| <a href=#214 id=214 data-nosnippet>214</a> show_container_bounds: bool, |
| <a href=#215 id=215 data-nosnippet>215</a> ) -> HirDisplayWrapper<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>, <span class="self">Self</span>> |
| <a href=#216 id=216 data-nosnippet>216</a> <span class="kw">where |
| <a href=#217 id=217 data-nosnippet>217</a> </span><span class="self">Self</span>: Sized, |
| <a href=#218 id=218 data-nosnippet>218</a> { |
| <a href=#219 id=219 data-nosnippet>219</a> <span class="macro">assert!</span>( |
| <a href=#220 id=220 data-nosnippet>220</a> !<span class="macro">matches!</span>(display_kind, DisplayKind::SourceCode { .. }), |
| <a href=#221 id=221 data-nosnippet>221</a> <span class="string">"HirDisplayWrapper cannot fail with DisplaySourceCodeError, use HirDisplay::hir_fmt directly instead" |
| <a href=#222 id=222 data-nosnippet>222</a> </span>); |
| <a href=#223 id=223 data-nosnippet>223</a> HirDisplayWrapper { |
| <a href=#224 id=224 data-nosnippet>224</a> db, |
| <a href=#225 id=225 data-nosnippet>225</a> t: <span class="self">self</span>, |
| <a href=#226 id=226 data-nosnippet>226</a> max_size, |
| <a href=#227 id=227 data-nosnippet>227</a> limited_size, |
| <a href=#228 id=228 data-nosnippet>228</a> omit_verbose_types, |
| <a href=#229 id=229 data-nosnippet>229</a> display_target, |
| <a href=#230 id=230 data-nosnippet>230</a> display_kind, |
| <a href=#231 id=231 data-nosnippet>231</a> closure_style, |
| <a href=#232 id=232 data-nosnippet>232</a> show_container_bounds, |
| <a href=#233 id=233 data-nosnippet>233</a> display_lifetimes: DisplayLifetime::OnlyNamedOrStatic, |
| <a href=#234 id=234 data-nosnippet>234</a> } |
| <a href=#235 id=235 data-nosnippet>235</a> } |
| <a href=#236 id=236 data-nosnippet>236</a> |
| <a href=#237 id=237 data-nosnippet>237</a> <span class="doccomment">/// Returns a `Display`able type that is human-readable. |
| <a href=#238 id=238 data-nosnippet>238</a> /// Use this for showing types to the user (e.g. diagnostics) |
| <a href=#239 id=239 data-nosnippet>239</a> </span><span class="kw">fn </span>display<<span class="lifetime">'a</span>>( |
| <a href=#240 id=240 data-nosnippet>240</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#241 id=241 data-nosnippet>241</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#242 id=242 data-nosnippet>242</a> display_target: DisplayTarget, |
| <a href=#243 id=243 data-nosnippet>243</a> ) -> HirDisplayWrapper<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>, <span class="self">Self</span>> |
| <a href=#244 id=244 data-nosnippet>244</a> <span class="kw">where |
| <a href=#245 id=245 data-nosnippet>245</a> </span><span class="self">Self</span>: Sized, |
| <a href=#246 id=246 data-nosnippet>246</a> { |
| <a href=#247 id=247 data-nosnippet>247</a> HirDisplayWrapper { |
| <a href=#248 id=248 data-nosnippet>248</a> db, |
| <a href=#249 id=249 data-nosnippet>249</a> t: <span class="self">self</span>, |
| <a href=#250 id=250 data-nosnippet>250</a> max_size: <span class="prelude-val">None</span>, |
| <a href=#251 id=251 data-nosnippet>251</a> limited_size: <span class="prelude-val">None</span>, |
| <a href=#252 id=252 data-nosnippet>252</a> omit_verbose_types: <span class="bool-val">false</span>, |
| <a href=#253 id=253 data-nosnippet>253</a> closure_style: ClosureStyle::ImplFn, |
| <a href=#254 id=254 data-nosnippet>254</a> display_target, |
| <a href=#255 id=255 data-nosnippet>255</a> display_kind: DisplayKind::Diagnostics, |
| <a href=#256 id=256 data-nosnippet>256</a> show_container_bounds: <span class="bool-val">false</span>, |
| <a href=#257 id=257 data-nosnippet>257</a> display_lifetimes: DisplayLifetime::OnlyNamedOrStatic, |
| <a href=#258 id=258 data-nosnippet>258</a> } |
| <a href=#259 id=259 data-nosnippet>259</a> } |
| <a href=#260 id=260 data-nosnippet>260</a> |
| <a href=#261 id=261 data-nosnippet>261</a> <span class="doccomment">/// Returns a `Display`able type that is human-readable and tries to be succinct. |
| <a href=#262 id=262 data-nosnippet>262</a> /// Use this for showing types to the user where space is constrained (e.g. doc popups) |
| <a href=#263 id=263 data-nosnippet>263</a> </span><span class="kw">fn </span>display_truncated<<span class="lifetime">'a</span>>( |
| <a href=#264 id=264 data-nosnippet>264</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#265 id=265 data-nosnippet>265</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#266 id=266 data-nosnippet>266</a> max_size: <span class="prelude-ty">Option</span><usize>, |
| <a href=#267 id=267 data-nosnippet>267</a> display_target: DisplayTarget, |
| <a href=#268 id=268 data-nosnippet>268</a> ) -> HirDisplayWrapper<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>, <span class="self">Self</span>> |
| <a href=#269 id=269 data-nosnippet>269</a> <span class="kw">where |
| <a href=#270 id=270 data-nosnippet>270</a> </span><span class="self">Self</span>: Sized, |
| <a href=#271 id=271 data-nosnippet>271</a> { |
| <a href=#272 id=272 data-nosnippet>272</a> HirDisplayWrapper { |
| <a href=#273 id=273 data-nosnippet>273</a> db, |
| <a href=#274 id=274 data-nosnippet>274</a> t: <span class="self">self</span>, |
| <a href=#275 id=275 data-nosnippet>275</a> max_size, |
| <a href=#276 id=276 data-nosnippet>276</a> limited_size: <span class="prelude-val">None</span>, |
| <a href=#277 id=277 data-nosnippet>277</a> omit_verbose_types: <span class="bool-val">true</span>, |
| <a href=#278 id=278 data-nosnippet>278</a> closure_style: ClosureStyle::ImplFn, |
| <a href=#279 id=279 data-nosnippet>279</a> display_target, |
| <a href=#280 id=280 data-nosnippet>280</a> display_kind: DisplayKind::Diagnostics, |
| <a href=#281 id=281 data-nosnippet>281</a> show_container_bounds: <span class="bool-val">false</span>, |
| <a href=#282 id=282 data-nosnippet>282</a> display_lifetimes: DisplayLifetime::OnlyNamedOrStatic, |
| <a href=#283 id=283 data-nosnippet>283</a> } |
| <a href=#284 id=284 data-nosnippet>284</a> } |
| <a href=#285 id=285 data-nosnippet>285</a> |
| <a href=#286 id=286 data-nosnippet>286</a> <span class="doccomment">/// Returns a `Display`able type that is human-readable and tries to limit the number of items inside. |
| <a href=#287 id=287 data-nosnippet>287</a> /// Use this for showing definitions which may contain too many items, like `trait`, `struct`, `enum` |
| <a href=#288 id=288 data-nosnippet>288</a> </span><span class="kw">fn </span>display_limited<<span class="lifetime">'a</span>>( |
| <a href=#289 id=289 data-nosnippet>289</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#290 id=290 data-nosnippet>290</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#291 id=291 data-nosnippet>291</a> limited_size: <span class="prelude-ty">Option</span><usize>, |
| <a href=#292 id=292 data-nosnippet>292</a> display_target: DisplayTarget, |
| <a href=#293 id=293 data-nosnippet>293</a> ) -> HirDisplayWrapper<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>, <span class="self">Self</span>> |
| <a href=#294 id=294 data-nosnippet>294</a> <span class="kw">where |
| <a href=#295 id=295 data-nosnippet>295</a> </span><span class="self">Self</span>: Sized, |
| <a href=#296 id=296 data-nosnippet>296</a> { |
| <a href=#297 id=297 data-nosnippet>297</a> HirDisplayWrapper { |
| <a href=#298 id=298 data-nosnippet>298</a> db, |
| <a href=#299 id=299 data-nosnippet>299</a> t: <span class="self">self</span>, |
| <a href=#300 id=300 data-nosnippet>300</a> max_size: <span class="prelude-val">None</span>, |
| <a href=#301 id=301 data-nosnippet>301</a> limited_size, |
| <a href=#302 id=302 data-nosnippet>302</a> omit_verbose_types: <span class="bool-val">true</span>, |
| <a href=#303 id=303 data-nosnippet>303</a> closure_style: ClosureStyle::ImplFn, |
| <a href=#304 id=304 data-nosnippet>304</a> display_target, |
| <a href=#305 id=305 data-nosnippet>305</a> display_kind: DisplayKind::Diagnostics, |
| <a href=#306 id=306 data-nosnippet>306</a> show_container_bounds: <span class="bool-val">false</span>, |
| <a href=#307 id=307 data-nosnippet>307</a> display_lifetimes: DisplayLifetime::OnlyNamedOrStatic, |
| <a href=#308 id=308 data-nosnippet>308</a> } |
| <a href=#309 id=309 data-nosnippet>309</a> } |
| <a href=#310 id=310 data-nosnippet>310</a> |
| <a href=#311 id=311 data-nosnippet>311</a> <span class="doccomment">/// Returns a String representation of `self` that can be inserted into the given module. |
| <a href=#312 id=312 data-nosnippet>312</a> /// Use this when generating code (e.g. assists) |
| <a href=#313 id=313 data-nosnippet>313</a> </span><span class="kw">fn </span>display_source_code<<span class="lifetime">'a</span>>( |
| <a href=#314 id=314 data-nosnippet>314</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#315 id=315 data-nosnippet>315</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#316 id=316 data-nosnippet>316</a> module_id: ModuleId, |
| <a href=#317 id=317 data-nosnippet>317</a> allow_opaque: bool, |
| <a href=#318 id=318 data-nosnippet>318</a> ) -> <span class="prelude-ty">Result</span><String, DisplaySourceCodeError> { |
| <a href=#319 id=319 data-nosnippet>319</a> <span class="kw">let </span><span class="kw-2">mut </span>result = String::new(); |
| <a href=#320 id=320 data-nosnippet>320</a> <span class="kw">let </span>interner = DbInterner::new_with(db, module_id.krate(db)); |
| <a href=#321 id=321 data-nosnippet>321</a> <span class="kw">match </span><span class="self">self</span>.hir_fmt(<span class="kw-2">&mut </span>HirFormatter { |
| <a href=#322 id=322 data-nosnippet>322</a> db, |
| <a href=#323 id=323 data-nosnippet>323</a> interner, |
| <a href=#324 id=324 data-nosnippet>324</a> fmt: <span class="kw-2">&mut </span>result, |
| <a href=#325 id=325 data-nosnippet>325</a> buf: String::with_capacity(<span class="number">20</span>), |
| <a href=#326 id=326 data-nosnippet>326</a> curr_size: <span class="number">0</span>, |
| <a href=#327 id=327 data-nosnippet>327</a> max_size: <span class="prelude-val">None</span>, |
| <a href=#328 id=328 data-nosnippet>328</a> entity_limit: <span class="prelude-val">None</span>, |
| <a href=#329 id=329 data-nosnippet>329</a> omit_verbose_types: <span class="bool-val">false</span>, |
| <a href=#330 id=330 data-nosnippet>330</a> closure_style: ClosureStyle::ImplFn, |
| <a href=#331 id=331 data-nosnippet>331</a> display_target: DisplayTarget::from_crate(db, module_id.krate(db)), |
| <a href=#332 id=332 data-nosnippet>332</a> display_kind: DisplayKind::SourceCode { target_module_id: module_id, allow_opaque }, |
| <a href=#333 id=333 data-nosnippet>333</a> show_container_bounds: <span class="bool-val">false</span>, |
| <a href=#334 id=334 data-nosnippet>334</a> display_lifetimes: DisplayLifetime::OnlyNamedOrStatic, |
| <a href=#335 id=335 data-nosnippet>335</a> bounds_formatting_ctx: Default::default(), |
| <a href=#336 id=336 data-nosnippet>336</a> trait_bounds_need_parens: <span class="bool-val">false</span>, |
| <a href=#337 id=337 data-nosnippet>337</a> }) { |
| <a href=#338 id=338 data-nosnippet>338</a> <span class="prelude-val">Ok</span>(()) => {} |
| <a href=#339 id=339 data-nosnippet>339</a> <span class="prelude-val">Err</span>(HirDisplayError::FmtError) => <span class="macro">panic!</span>(<span class="string">"Writing to String can't fail!"</span>), |
| <a href=#340 id=340 data-nosnippet>340</a> <span class="prelude-val">Err</span>(HirDisplayError::DisplaySourceCodeError(e)) => <span class="kw">return </span><span class="prelude-val">Err</span>(e), |
| <a href=#341 id=341 data-nosnippet>341</a> }; |
| <a href=#342 id=342 data-nosnippet>342</a> <span class="prelude-val">Ok</span>(result) |
| <a href=#343 id=343 data-nosnippet>343</a> } |
| <a href=#344 id=344 data-nosnippet>344</a> |
| <a href=#345 id=345 data-nosnippet>345</a> <span class="doccomment">/// Returns a String representation of `self` for test purposes |
| <a href=#346 id=346 data-nosnippet>346</a> </span><span class="kw">fn </span>display_test<<span class="lifetime">'a</span>>( |
| <a href=#347 id=347 data-nosnippet>347</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#348 id=348 data-nosnippet>348</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#349 id=349 data-nosnippet>349</a> display_target: DisplayTarget, |
| <a href=#350 id=350 data-nosnippet>350</a> ) -> HirDisplayWrapper<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>, <span class="self">Self</span>> |
| <a href=#351 id=351 data-nosnippet>351</a> <span class="kw">where |
| <a href=#352 id=352 data-nosnippet>352</a> </span><span class="self">Self</span>: Sized, |
| <a href=#353 id=353 data-nosnippet>353</a> { |
| <a href=#354 id=354 data-nosnippet>354</a> HirDisplayWrapper { |
| <a href=#355 id=355 data-nosnippet>355</a> db, |
| <a href=#356 id=356 data-nosnippet>356</a> t: <span class="self">self</span>, |
| <a href=#357 id=357 data-nosnippet>357</a> max_size: <span class="prelude-val">None</span>, |
| <a href=#358 id=358 data-nosnippet>358</a> limited_size: <span class="prelude-val">None</span>, |
| <a href=#359 id=359 data-nosnippet>359</a> omit_verbose_types: <span class="bool-val">false</span>, |
| <a href=#360 id=360 data-nosnippet>360</a> closure_style: ClosureStyle::ImplFn, |
| <a href=#361 id=361 data-nosnippet>361</a> display_target, |
| <a href=#362 id=362 data-nosnippet>362</a> display_kind: DisplayKind::Test, |
| <a href=#363 id=363 data-nosnippet>363</a> show_container_bounds: <span class="bool-val">false</span>, |
| <a href=#364 id=364 data-nosnippet>364</a> display_lifetimes: DisplayLifetime::Always, |
| <a href=#365 id=365 data-nosnippet>365</a> } |
| <a href=#366 id=366 data-nosnippet>366</a> } |
| <a href=#367 id=367 data-nosnippet>367</a> |
| <a href=#368 id=368 data-nosnippet>368</a> <span class="doccomment">/// Returns a String representation of `self` that shows the constraint from |
| <a href=#369 id=369 data-nosnippet>369</a> /// the container for functions |
| <a href=#370 id=370 data-nosnippet>370</a> </span><span class="kw">fn </span>display_with_container_bounds<<span class="lifetime">'a</span>>( |
| <a href=#371 id=371 data-nosnippet>371</a> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="self">self</span>, |
| <a href=#372 id=372 data-nosnippet>372</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#373 id=373 data-nosnippet>373</a> show_container_bounds: bool, |
| <a href=#374 id=374 data-nosnippet>374</a> display_target: DisplayTarget, |
| <a href=#375 id=375 data-nosnippet>375</a> ) -> HirDisplayWrapper<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>, <span class="self">Self</span>> |
| <a href=#376 id=376 data-nosnippet>376</a> <span class="kw">where |
| <a href=#377 id=377 data-nosnippet>377</a> </span><span class="self">Self</span>: Sized, |
| <a href=#378 id=378 data-nosnippet>378</a> { |
| <a href=#379 id=379 data-nosnippet>379</a> HirDisplayWrapper { |
| <a href=#380 id=380 data-nosnippet>380</a> db, |
| <a href=#381 id=381 data-nosnippet>381</a> t: <span class="self">self</span>, |
| <a href=#382 id=382 data-nosnippet>382</a> max_size: <span class="prelude-val">None</span>, |
| <a href=#383 id=383 data-nosnippet>383</a> limited_size: <span class="prelude-val">None</span>, |
| <a href=#384 id=384 data-nosnippet>384</a> omit_verbose_types: <span class="bool-val">false</span>, |
| <a href=#385 id=385 data-nosnippet>385</a> closure_style: ClosureStyle::ImplFn, |
| <a href=#386 id=386 data-nosnippet>386</a> display_target, |
| <a href=#387 id=387 data-nosnippet>387</a> display_kind: DisplayKind::Diagnostics, |
| <a href=#388 id=388 data-nosnippet>388</a> show_container_bounds, |
| <a href=#389 id=389 data-nosnippet>389</a> display_lifetimes: DisplayLifetime::OnlyNamedOrStatic, |
| <a href=#390 id=390 data-nosnippet>390</a> } |
| <a href=#391 id=391 data-nosnippet>391</a> } |
| <a href=#392 id=392 data-nosnippet>392</a>} |
| <a href=#393 id=393 data-nosnippet>393</a> |
| <a href=#394 id=394 data-nosnippet>394</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>> { |
| <a href=#395 id=395 data-nosnippet>395</a> <span class="kw">pub fn </span>krate(<span class="kw-2">&</span><span class="self">self</span>) -> Crate { |
| <a href=#396 id=396 data-nosnippet>396</a> <span class="self">self</span>.display_target.krate |
| <a href=#397 id=397 data-nosnippet>397</a> } |
| <a href=#398 id=398 data-nosnippet>398</a> |
| <a href=#399 id=399 data-nosnippet>399</a> <span class="kw">pub fn </span>edition(<span class="kw-2">&</span><span class="self">self</span>) -> Edition { |
| <a href=#400 id=400 data-nosnippet>400</a> <span class="self">self</span>.display_target.edition |
| <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> <span class="attr">#[inline] |
| <a href=#404 id=404 data-nosnippet>404</a> </span><span class="kw">pub fn </span>lang_items(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'db </span>LangItems { |
| <a href=#405 id=405 data-nosnippet>405</a> <span class="self">self</span>.interner.lang_items() |
| <a href=#406 id=406 data-nosnippet>406</a> } |
| <a href=#407 id=407 data-nosnippet>407</a> |
| <a href=#408 id=408 data-nosnippet>408</a> <span class="kw">pub fn </span>write_joined<T: HirDisplay<<span class="lifetime">'db</span>>>( |
| <a href=#409 id=409 data-nosnippet>409</a> <span class="kw-2">&mut </span><span class="self">self</span>, |
| <a href=#410 id=410 data-nosnippet>410</a> iter: <span class="kw">impl </span>IntoIterator<Item = T>, |
| <a href=#411 id=411 data-nosnippet>411</a> sep: <span class="kw-2">&</span>str, |
| <a href=#412 id=412 data-nosnippet>412</a> ) -> <span class="prelude-ty">Result </span>{ |
| <a href=#413 id=413 data-nosnippet>413</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#414 id=414 data-nosnippet>414</a> <span class="kw">for </span>e <span class="kw">in </span>iter { |
| <a href=#415 id=415 data-nosnippet>415</a> <span class="kw">if </span>!first { |
| <a href=#416 id=416 data-nosnippet>416</a> <span class="macro">write!</span>(<span class="self">self</span>, <span class="string">"{sep}"</span>)<span class="question-mark">?</span>; |
| <a href=#417 id=417 data-nosnippet>417</a> } |
| <a href=#418 id=418 data-nosnippet>418</a> first = <span class="bool-val">false</span>; |
| <a href=#419 id=419 data-nosnippet>419</a> |
| <a href=#420 id=420 data-nosnippet>420</a> <span class="comment">// Abbreviate multiple omitted types with a single ellipsis. |
| <a href=#421 id=421 data-nosnippet>421</a> </span><span class="kw">if </span><span class="self">self</span>.should_truncate() { |
| <a href=#422 id=422 data-nosnippet>422</a> <span class="kw">return </span><span class="macro">write!</span>(<span class="self">self</span>, <span class="string">"{TYPE_HINT_TRUNCATION}"</span>); |
| <a href=#423 id=423 data-nosnippet>423</a> } |
| <a href=#424 id=424 data-nosnippet>424</a> |
| <a href=#425 id=425 data-nosnippet>425</a> e.hir_fmt(<span class="self">self</span>)<span class="question-mark">?</span>; |
| <a href=#426 id=426 data-nosnippet>426</a> } |
| <a href=#427 id=427 data-nosnippet>427</a> <span class="prelude-val">Ok</span>(()) |
| <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="doccomment">/// This allows using the `write!` macro directly with a `HirFormatter`. |
| <a href=#431 id=431 data-nosnippet>431</a> </span><span class="kw">pub fn </span>write_fmt(<span class="kw-2">&mut </span><span class="self">self</span>, args: fmt::Arguments<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#432 id=432 data-nosnippet>432</a> <span class="comment">// We write to a buffer first to track output size |
| <a href=#433 id=433 data-nosnippet>433</a> </span><span class="self">self</span>.buf.clear(); |
| <a href=#434 id=434 data-nosnippet>434</a> fmt::write(<span class="kw-2">&mut </span><span class="self">self</span>.buf, args)<span class="question-mark">?</span>; |
| <a href=#435 id=435 data-nosnippet>435</a> <span class="self">self</span>.curr_size += <span class="self">self</span>.buf.len(); |
| <a href=#436 id=436 data-nosnippet>436</a> |
| <a href=#437 id=437 data-nosnippet>437</a> <span class="comment">// Then we write to the internal formatter from the buffer |
| <a href=#438 id=438 data-nosnippet>438</a> </span><span class="self">self</span>.fmt.write_str(<span class="kw-2">&</span><span class="self">self</span>.buf).map_err(HirDisplayError::from) |
| <a href=#439 id=439 data-nosnippet>439</a> } |
| <a href=#440 id=440 data-nosnippet>440</a> |
| <a href=#441 id=441 data-nosnippet>441</a> <span class="kw">pub fn </span>write_str(<span class="kw-2">&mut </span><span class="self">self</span>, s: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result </span>{ |
| <a href=#442 id=442 data-nosnippet>442</a> <span class="self">self</span>.fmt.write_str(s)<span class="question-mark">?</span>; |
| <a href=#443 id=443 data-nosnippet>443</a> <span class="prelude-val">Ok</span>(()) |
| <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">pub fn </span>write_char(<span class="kw-2">&mut </span><span class="self">self</span>, c: char) -> <span class="prelude-ty">Result </span>{ |
| <a href=#447 id=447 data-nosnippet>447</a> <span class="self">self</span>.fmt.write_char(c)<span class="question-mark">?</span>; |
| <a href=#448 id=448 data-nosnippet>448</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#449 id=449 data-nosnippet>449</a> } |
| <a href=#450 id=450 data-nosnippet>450</a> |
| <a href=#451 id=451 data-nosnippet>451</a> <span class="kw">pub fn </span>should_truncate(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#452 id=452 data-nosnippet>452</a> <span class="kw">match </span><span class="self">self</span>.max_size { |
| <a href=#453 id=453 data-nosnippet>453</a> <span class="prelude-val">Some</span>(max_size) => <span class="self">self</span>.curr_size >= max_size, |
| <a href=#454 id=454 data-nosnippet>454</a> <span class="prelude-val">None </span>=> <span class="bool-val">false</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">pub fn </span>omit_verbose_types(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#459 id=459 data-nosnippet>459</a> <span class="self">self</span>.omit_verbose_types |
| <a href=#460 id=460 data-nosnippet>460</a> } |
| <a href=#461 id=461 data-nosnippet>461</a> |
| <a href=#462 id=462 data-nosnippet>462</a> <span class="kw">pub fn </span>show_container_bounds(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#463 id=463 data-nosnippet>463</a> <span class="self">self</span>.show_container_bounds |
| <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><span class="attr">#[derive(Debug, Clone, Copy)] |
| <a href=#468 id=468 data-nosnippet>468</a></span><span class="kw">pub struct </span>DisplayTarget { |
| <a href=#469 id=469 data-nosnippet>469</a> krate: Crate, |
| <a href=#470 id=470 data-nosnippet>470</a> <span class="kw">pub </span>edition: Edition, |
| <a href=#471 id=471 data-nosnippet>471</a>} |
| <a href=#472 id=472 data-nosnippet>472</a> |
| <a href=#473 id=473 data-nosnippet>473</a><span class="kw">impl </span>DisplayTarget { |
| <a href=#474 id=474 data-nosnippet>474</a> <span class="kw">pub fn </span>from_crate(db: <span class="kw-2">&</span><span class="kw">dyn </span>HirDatabase, krate: Crate) -> <span class="self">Self </span>{ |
| <a href=#475 id=475 data-nosnippet>475</a> <span class="kw">let </span>edition = krate.data(db).edition; |
| <a href=#476 id=476 data-nosnippet>476</a> <span class="self">Self </span>{ krate, edition } |
| <a href=#477 id=477 data-nosnippet>477</a> } |
| <a href=#478 id=478 data-nosnippet>478</a>} |
| <a href=#479 id=479 data-nosnippet>479</a> |
| <a href=#480 id=480 data-nosnippet>480</a><span class="attr">#[derive(Clone, Copy)] |
| <a href=#481 id=481 data-nosnippet>481</a></span><span class="kw">pub enum </span>DisplayKind { |
| <a href=#482 id=482 data-nosnippet>482</a> <span class="doccomment">/// Display types for inlays, doc popups, autocompletion, etc... |
| <a href=#483 id=483 data-nosnippet>483</a> /// Showing `{unknown}` or not qualifying paths is fine here. |
| <a href=#484 id=484 data-nosnippet>484</a> /// There's no reason for this to fail. |
| <a href=#485 id=485 data-nosnippet>485</a> </span>Diagnostics, |
| <a href=#486 id=486 data-nosnippet>486</a> <span class="doccomment">/// Display types for inserting them in source files. |
| <a href=#487 id=487 data-nosnippet>487</a> /// The generated code should compile, so paths need to be qualified. |
| <a href=#488 id=488 data-nosnippet>488</a> </span>SourceCode { target_module_id: ModuleId, allow_opaque: bool }, |
| <a href=#489 id=489 data-nosnippet>489</a> <span class="doccomment">/// Only for test purpose to keep real types |
| <a href=#490 id=490 data-nosnippet>490</a> </span>Test, |
| <a href=#491 id=491 data-nosnippet>491</a>} |
| <a href=#492 id=492 data-nosnippet>492</a> |
| <a href=#493 id=493 data-nosnippet>493</a><span class="kw">impl </span>DisplayKind { |
| <a href=#494 id=494 data-nosnippet>494</a> <span class="kw">fn </span>is_source_code(<span class="self">self</span>) -> bool { |
| <a href=#495 id=495 data-nosnippet>495</a> <span class="macro">matches!</span>(<span class="self">self</span>, <span class="self">Self</span>::SourceCode { .. }) |
| <a href=#496 id=496 data-nosnippet>496</a> } |
| <a href=#497 id=497 data-nosnippet>497</a> |
| <a href=#498 id=498 data-nosnippet>498</a> <span class="kw">fn </span>allows_opaque(<span class="self">self</span>) -> bool { |
| <a href=#499 id=499 data-nosnippet>499</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#500 id=500 data-nosnippet>500</a> <span class="self">Self</span>::SourceCode { allow_opaque, .. } => allow_opaque, |
| <a href=#501 id=501 data-nosnippet>501</a> <span class="kw">_ </span>=> <span class="bool-val">true</span>, |
| <a href=#502 id=502 data-nosnippet>502</a> } |
| <a href=#503 id=503 data-nosnippet>503</a> } |
| <a href=#504 id=504 data-nosnippet>504</a>} |
| <a href=#505 id=505 data-nosnippet>505</a> |
| <a href=#506 id=506 data-nosnippet>506</a><span class="attr">#[derive(Debug)] |
| <a href=#507 id=507 data-nosnippet>507</a></span><span class="kw">pub enum </span>DisplaySourceCodeError { |
| <a href=#508 id=508 data-nosnippet>508</a> PathNotFound, |
| <a href=#509 id=509 data-nosnippet>509</a> Coroutine, |
| <a href=#510 id=510 data-nosnippet>510</a> OpaqueType, |
| <a href=#511 id=511 data-nosnippet>511</a>} |
| <a href=#512 id=512 data-nosnippet>512</a> |
| <a href=#513 id=513 data-nosnippet>513</a><span class="kw">pub enum </span>HirDisplayError { |
| <a href=#514 id=514 data-nosnippet>514</a> <span class="doccomment">/// Errors that can occur when generating source code |
| <a href=#515 id=515 data-nosnippet>515</a> </span>DisplaySourceCodeError(DisplaySourceCodeError), |
| <a href=#516 id=516 data-nosnippet>516</a> <span class="doccomment">/// `FmtError` is required to be compatible with std::fmt::Display |
| <a href=#517 id=517 data-nosnippet>517</a> </span>FmtError, |
| <a href=#518 id=518 data-nosnippet>518</a>} |
| <a href=#519 id=519 data-nosnippet>519</a><span class="kw">impl </span>From<fmt::Error> <span class="kw">for </span>HirDisplayError { |
| <a href=#520 id=520 data-nosnippet>520</a> <span class="kw">fn </span>from(<span class="kw">_</span>: fmt::Error) -> <span class="self">Self </span>{ |
| <a href=#521 id=521 data-nosnippet>521</a> <span class="self">Self</span>::FmtError |
| <a href=#522 id=522 data-nosnippet>522</a> } |
| <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">pub struct </span>HirDisplayWrapper<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>, T> { |
| <a href=#526 id=526 data-nosnippet>526</a> db: <span class="kw-2">&</span><span class="lifetime">'db </span><span class="kw">dyn </span>HirDatabase, |
| <a href=#527 id=527 data-nosnippet>527</a> t: <span class="kw-2">&</span><span class="lifetime">'a </span>T, |
| <a href=#528 id=528 data-nosnippet>528</a> max_size: <span class="prelude-ty">Option</span><usize>, |
| <a href=#529 id=529 data-nosnippet>529</a> limited_size: <span class="prelude-ty">Option</span><usize>, |
| <a href=#530 id=530 data-nosnippet>530</a> omit_verbose_types: bool, |
| <a href=#531 id=531 data-nosnippet>531</a> closure_style: ClosureStyle, |
| <a href=#532 id=532 data-nosnippet>532</a> display_kind: DisplayKind, |
| <a href=#533 id=533 data-nosnippet>533</a> display_target: DisplayTarget, |
| <a href=#534 id=534 data-nosnippet>534</a> show_container_bounds: bool, |
| <a href=#535 id=535 data-nosnippet>535</a> display_lifetimes: DisplayLifetime, |
| <a href=#536 id=536 data-nosnippet>536</a>} |
| <a href=#537 id=537 data-nosnippet>537</a> |
| <a href=#538 id=538 data-nosnippet>538</a><span class="attr">#[derive(Debug, PartialEq, Eq, Clone, Copy)] |
| <a href=#539 id=539 data-nosnippet>539</a></span><span class="kw">pub enum </span>ClosureStyle { |
| <a href=#540 id=540 data-nosnippet>540</a> <span class="doccomment">/// `impl FnX(i32, i32) -> i32`, where `FnX` is the most special trait between `Fn`, `FnMut`, `FnOnce` that the |
| <a href=#541 id=541 data-nosnippet>541</a> /// closure implements. This is the default. |
| <a href=#542 id=542 data-nosnippet>542</a> </span>ImplFn, |
| <a href=#543 id=543 data-nosnippet>543</a> <span class="doccomment">/// `|i32, i32| -> i32` |
| <a href=#544 id=544 data-nosnippet>544</a> </span>RANotation, |
| <a href=#545 id=545 data-nosnippet>545</a> <span class="doccomment">/// `{closure#14825}`, useful for some diagnostics (like type mismatch) and internal usage. |
| <a href=#546 id=546 data-nosnippet>546</a> </span>ClosureWithId, |
| <a href=#547 id=547 data-nosnippet>547</a> <span class="doccomment">/// `{closure#14825}<i32, ()>`, useful for internal usage. |
| <a href=#548 id=548 data-nosnippet>548</a> </span>ClosureWithSubst, |
| <a href=#549 id=549 data-nosnippet>549</a> <span class="doccomment">/// `…`, which is the `TYPE_HINT_TRUNCATION` |
| <a href=#550 id=550 data-nosnippet>550</a> </span>Hide, |
| <a href=#551 id=551 data-nosnippet>551</a>} |
| <a href=#552 id=552 data-nosnippet>552</a> |
| <a href=#553 id=553 data-nosnippet>553</a><span class="kw">impl</span><<span class="lifetime">'db</span>, T: HirDisplay<<span class="lifetime">'db</span>>> HirDisplayWrapper<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>, T> { |
| <a href=#554 id=554 data-nosnippet>554</a> <span class="kw">pub fn </span>write_to<F: HirWrite>(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>F) -> <span class="prelude-ty">Result </span>{ |
| <a href=#555 id=555 data-nosnippet>555</a> <span class="kw">let </span>krate = <span class="self">self</span>.display_target.krate; |
| <a href=#556 id=556 data-nosnippet>556</a> <span class="kw">let </span>interner = DbInterner::new_with(<span class="self">self</span>.db, krate); |
| <a href=#557 id=557 data-nosnippet>557</a> <span class="self">self</span>.t.hir_fmt(<span class="kw-2">&mut </span>HirFormatter { |
| <a href=#558 id=558 data-nosnippet>558</a> db: <span class="self">self</span>.db, |
| <a href=#559 id=559 data-nosnippet>559</a> interner, |
| <a href=#560 id=560 data-nosnippet>560</a> fmt: f, |
| <a href=#561 id=561 data-nosnippet>561</a> buf: String::with_capacity(<span class="self">self</span>.max_size.unwrap_or(<span class="number">20</span>)), |
| <a href=#562 id=562 data-nosnippet>562</a> curr_size: <span class="number">0</span>, |
| <a href=#563 id=563 data-nosnippet>563</a> max_size: <span class="self">self</span>.max_size, |
| <a href=#564 id=564 data-nosnippet>564</a> entity_limit: <span class="self">self</span>.limited_size, |
| <a href=#565 id=565 data-nosnippet>565</a> omit_verbose_types: <span class="self">self</span>.omit_verbose_types, |
| <a href=#566 id=566 data-nosnippet>566</a> display_kind: <span class="self">self</span>.display_kind, |
| <a href=#567 id=567 data-nosnippet>567</a> display_target: <span class="self">self</span>.display_target, |
| <a href=#568 id=568 data-nosnippet>568</a> closure_style: <span class="self">self</span>.closure_style, |
| <a href=#569 id=569 data-nosnippet>569</a> show_container_bounds: <span class="self">self</span>.show_container_bounds, |
| <a href=#570 id=570 data-nosnippet>570</a> display_lifetimes: <span class="self">self</span>.display_lifetimes, |
| <a href=#571 id=571 data-nosnippet>571</a> bounds_formatting_ctx: Default::default(), |
| <a href=#572 id=572 data-nosnippet>572</a> trait_bounds_need_parens: <span class="bool-val">false</span>, |
| <a href=#573 id=573 data-nosnippet>573</a> }) |
| <a href=#574 id=574 data-nosnippet>574</a> } |
| <a href=#575 id=575 data-nosnippet>575</a> |
| <a href=#576 id=576 data-nosnippet>576</a> <span class="kw">pub fn </span>with_closure_style(<span class="kw-2">mut </span><span class="self">self</span>, c: ClosureStyle) -> <span class="self">Self </span>{ |
| <a href=#577 id=577 data-nosnippet>577</a> <span class="self">self</span>.closure_style = c; |
| <a href=#578 id=578 data-nosnippet>578</a> <span class="self">self |
| <a href=#579 id=579 data-nosnippet>579</a> </span>} |
| <a href=#580 id=580 data-nosnippet>580</a> |
| <a href=#581 id=581 data-nosnippet>581</a> <span class="kw">pub fn </span>with_lifetime_display(<span class="kw-2">mut </span><span class="self">self</span>, l: DisplayLifetime) -> <span class="self">Self </span>{ |
| <a href=#582 id=582 data-nosnippet>582</a> <span class="self">self</span>.display_lifetimes = l; |
| <a href=#583 id=583 data-nosnippet>583</a> <span class="self">self |
| <a href=#584 id=584 data-nosnippet>584</a> </span>} |
| <a href=#585 id=585 data-nosnippet>585</a>} |
| <a href=#586 id=586 data-nosnippet>586</a> |
| <a href=#587 id=587 data-nosnippet>587</a><span class="kw">impl</span><<span class="lifetime">'db</span>, T> fmt::Display <span class="kw">for </span>HirDisplayWrapper<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>, T> |
| <a href=#588 id=588 data-nosnippet>588</a><span class="kw">where |
| <a href=#589 id=589 data-nosnippet>589</a> </span>T: HirDisplay<<span class="lifetime">'db</span>>, |
| <a href=#590 id=590 data-nosnippet>590</a>{ |
| <a href=#591 id=591 data-nosnippet>591</a> <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <a href=#592 id=592 data-nosnippet>592</a> <span class="kw">match </span><span class="self">self</span>.write_to(f) { |
| <a href=#593 id=593 data-nosnippet>593</a> <span class="prelude-val">Ok</span>(()) => <span class="prelude-val">Ok</span>(()), |
| <a href=#594 id=594 data-nosnippet>594</a> <span class="prelude-val">Err</span>(HirDisplayError::FmtError) => <span class="prelude-val">Err</span>(fmt::Error), |
| <a href=#595 id=595 data-nosnippet>595</a> <span class="prelude-val">Err</span>(HirDisplayError::DisplaySourceCodeError(<span class="kw">_</span>)) => { |
| <a href=#596 id=596 data-nosnippet>596</a> <span class="comment">// This should never happen |
| <a href=#597 id=597 data-nosnippet>597</a> </span><span class="macro">panic!</span>( |
| <a href=#598 id=598 data-nosnippet>598</a> <span class="string">"HirDisplay::hir_fmt failed with DisplaySourceCodeError when calling Display::fmt!" |
| <a href=#599 id=599 data-nosnippet>599</a> </span>) |
| <a href=#600 id=600 data-nosnippet>600</a> } |
| <a href=#601 id=601 data-nosnippet>601</a> } |
| <a href=#602 id=602 data-nosnippet>602</a> } |
| <a href=#603 id=603 data-nosnippet>603</a>} |
| <a href=#604 id=604 data-nosnippet>604</a> |
| <a href=#605 id=605 data-nosnippet>605</a><span class="kw">const </span>TYPE_HINT_TRUNCATION: <span class="kw-2">&</span>str = <span class="string">"…"</span>; |
| <a href=#606 id=606 data-nosnippet>606</a> |
| <a href=#607 id=607 data-nosnippet>607</a><span class="kw">impl</span><<span class="lifetime">'db</span>, T: HirDisplay<<span class="lifetime">'db</span>>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span><span class="kw-2">&</span>T { |
| <a href=#608 id=608 data-nosnippet>608</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#609 id=609 data-nosnippet>609</a> HirDisplay::hir_fmt(<span class="kw-2">*</span><span class="self">self</span>, f) |
| <a href=#610 id=610 data-nosnippet>610</a> } |
| <a href=#611 id=611 data-nosnippet>611</a>} |
| <a href=#612 id=612 data-nosnippet>612</a> |
| <a href=#613 id=613 data-nosnippet>613</a><span class="kw">impl</span><<span class="lifetime">'db</span>, T: HirDisplay<<span class="lifetime">'db</span>> + Internable> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>Interned<T> { |
| <a href=#614 id=614 data-nosnippet>614</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#615 id=615 data-nosnippet>615</a> HirDisplay::hir_fmt(<span class="kw-2">&**</span><span class="self">self</span>, f) |
| <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><span class="kw">fn </span>write_projection<<span class="lifetime">'db</span>>( |
| <a href=#620 id=620 data-nosnippet>620</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#621 id=621 data-nosnippet>621</a> alias: <span class="kw-2">&</span>AliasTy<<span class="lifetime">'db</span>>, |
| <a href=#622 id=622 data-nosnippet>622</a> needs_parens_if_multi: bool, |
| <a href=#623 id=623 data-nosnippet>623</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#624 id=624 data-nosnippet>624</a> <span class="kw">if </span>f.should_truncate() { |
| <a href=#625 id=625 data-nosnippet>625</a> <span class="kw">return </span><span class="macro">write!</span>(f, <span class="string">"{TYPE_HINT_TRUNCATION}"</span>); |
| <a href=#626 id=626 data-nosnippet>626</a> } |
| <a href=#627 id=627 data-nosnippet>627</a> <span class="kw">let </span>trait_ref = alias.trait_ref(f.interner); |
| <a href=#628 id=628 data-nosnippet>628</a> <span class="kw">let </span>self_ty = trait_ref.self_ty(); |
| <a href=#629 id=629 data-nosnippet>629</a> |
| <a href=#630 id=630 data-nosnippet>630</a> <span class="comment">// if we are projection on a type parameter, check if the projection target has bounds |
| <a href=#631 id=631 data-nosnippet>631</a> // itself, if so, we render them directly as `impl Bound` instead of the less useful |
| <a href=#632 id=632 data-nosnippet>632</a> // `<Param as Trait>::Assoc` |
| <a href=#633 id=633 data-nosnippet>633</a> </span><span class="kw">if </span>!f.display_kind.is_source_code() |
| <a href=#634 id=634 data-nosnippet>634</a> && <span class="kw">let </span>TyKind::Param(param) = self_ty.kind() |
| <a href=#635 id=635 data-nosnippet>635</a> && !f.bounds_formatting_ctx.contains(alias) |
| <a href=#636 id=636 data-nosnippet>636</a> { |
| <a href=#637 id=637 data-nosnippet>637</a> <span class="comment">// FIXME: We shouldn't use `param.id`, it should be removed. We should know the |
| <a href=#638 id=638 data-nosnippet>638</a> // `GenericDefId` from the formatted type (store it inside the `HirFormatter`). |
| <a href=#639 id=639 data-nosnippet>639</a> </span><span class="kw">let </span>bounds = GenericPredicates::query_all(f.db, param.id.parent()) |
| <a href=#640 id=640 data-nosnippet>640</a> .iter_identity_copied() |
| <a href=#641 id=641 data-nosnippet>641</a> .filter(|wc| { |
| <a href=#642 id=642 data-nosnippet>642</a> <span class="kw">let </span>ty = <span class="kw">match </span>wc.kind().skip_binder() { |
| <a href=#643 id=643 data-nosnippet>643</a> ClauseKind::Trait(tr) => tr.self_ty(), |
| <a href=#644 id=644 data-nosnippet>644</a> ClauseKind::TypeOutlives(t) => t.<span class="number">0</span>, |
| <a href=#645 id=645 data-nosnippet>645</a> <span class="kw">_ </span>=> <span class="kw">return </span><span class="bool-val">false</span>, |
| <a href=#646 id=646 data-nosnippet>646</a> }; |
| <a href=#647 id=647 data-nosnippet>647</a> <span class="kw">let </span>TyKind::Alias(AliasTyKind::Projection, a) = ty.kind() <span class="kw">else </span>{ |
| <a href=#648 id=648 data-nosnippet>648</a> <span class="kw">return </span><span class="bool-val">false</span>; |
| <a href=#649 id=649 data-nosnippet>649</a> }; |
| <a href=#650 id=650 data-nosnippet>650</a> a == <span class="kw-2">*</span>alias |
| <a href=#651 id=651 data-nosnippet>651</a> }) |
| <a href=#652 id=652 data-nosnippet>652</a> .collect::<Vec<<span class="kw">_</span>>>(); |
| <a href=#653 id=653 data-nosnippet>653</a> <span class="kw">if </span>!bounds.is_empty() { |
| <a href=#654 id=654 data-nosnippet>654</a> <span class="kw">return </span>f.format_bounds_with(<span class="kw-2">*</span>alias, |f| { |
| <a href=#655 id=655 data-nosnippet>655</a> write_bounds_like_dyn_trait_with_prefix( |
| <a href=#656 id=656 data-nosnippet>656</a> f, |
| <a href=#657 id=657 data-nosnippet>657</a> <span class="string">"impl"</span>, |
| <a href=#658 id=658 data-nosnippet>658</a> Either::Left(Ty::new_alias(f.interner, AliasTyKind::Projection, <span class="kw-2">*</span>alias)), |
| <a href=#659 id=659 data-nosnippet>659</a> <span class="kw-2">&</span>bounds, |
| <a href=#660 id=660 data-nosnippet>660</a> SizedByDefault::NotSized, |
| <a href=#661 id=661 data-nosnippet>661</a> needs_parens_if_multi, |
| <a href=#662 id=662 data-nosnippet>662</a> ) |
| <a href=#663 id=663 data-nosnippet>663</a> }); |
| <a href=#664 id=664 data-nosnippet>664</a> } |
| <a href=#665 id=665 data-nosnippet>665</a> } |
| <a href=#666 id=666 data-nosnippet>666</a> |
| <a href=#667 id=667 data-nosnippet>667</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#668 id=668 data-nosnippet>668</a> self_ty.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#669 id=669 data-nosnippet>669</a> <span class="macro">write!</span>(f, <span class="string">" as "</span>)<span class="question-mark">?</span>; |
| <a href=#670 id=670 data-nosnippet>670</a> trait_ref.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#671 id=671 data-nosnippet>671</a> <span class="macro">write!</span>( |
| <a href=#672 id=672 data-nosnippet>672</a> f, |
| <a href=#673 id=673 data-nosnippet>673</a> <span class="string">">::{}"</span>, |
| <a href=#674 id=674 data-nosnippet>674</a> f.db.type_alias_signature(alias.def_id.expect_type_alias()).name.display(f.db, f.edition()) |
| <a href=#675 id=675 data-nosnippet>675</a> )<span class="question-mark">?</span>; |
| <a href=#676 id=676 data-nosnippet>676</a> <span class="kw">let </span>proj_params = <span class="kw-2">&</span>alias.args.as_slice()[trait_ref.args.len()..]; |
| <a href=#677 id=677 data-nosnippet>677</a> hir_fmt_generics(f, proj_params, <span class="prelude-val">None</span>, <span class="prelude-val">None</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">impl</span><<span class="lifetime">'db</span>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>GenericArg<<span class="lifetime">'db</span>> { |
| <a href=#681 id=681 data-nosnippet>681</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#682 id=682 data-nosnippet>682</a> <span class="kw">match </span><span class="self">self</span>.kind() { |
| <a href=#683 id=683 data-nosnippet>683</a> GenericArgKind::Type(ty) => ty.hir_fmt(f), |
| <a href=#684 id=684 data-nosnippet>684</a> GenericArgKind::Lifetime(lt) => lt.hir_fmt(f), |
| <a href=#685 id=685 data-nosnippet>685</a> GenericArgKind::Const(c) => c.hir_fmt(f), |
| <a href=#686 id=686 data-nosnippet>686</a> } |
| <a href=#687 id=687 data-nosnippet>687</a> } |
| <a href=#688 id=688 data-nosnippet>688</a>} |
| <a href=#689 id=689 data-nosnippet>689</a> |
| <a href=#690 id=690 data-nosnippet>690</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>Const<<span class="lifetime">'db</span>> { |
| <a href=#691 id=691 data-nosnippet>691</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#692 id=692 data-nosnippet>692</a> <span class="kw">match </span><span class="self">self</span>.kind() { |
| <a href=#693 id=693 data-nosnippet>693</a> ConstKind::Placeholder(<span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"<placeholder>"</span>), |
| <a href=#694 id=694 data-nosnippet>694</a> ConstKind::Bound(BoundVarIndexKind::Bound(db), bound_const) => { |
| <a href=#695 id=695 data-nosnippet>695</a> <span class="macro">write!</span>(f, <span class="string">"?{}.{}"</span>, db.as_u32(), bound_const.var.as_u32()) |
| <a href=#696 id=696 data-nosnippet>696</a> } |
| <a href=#697 id=697 data-nosnippet>697</a> ConstKind::Bound(BoundVarIndexKind::Canonical, bound_const) => { |
| <a href=#698 id=698 data-nosnippet>698</a> <span class="macro">write!</span>(f, <span class="string">"?c.{}"</span>, bound_const.var.as_u32()) |
| <a href=#699 id=699 data-nosnippet>699</a> } |
| <a href=#700 id=700 data-nosnippet>700</a> ConstKind::Infer(..) => <span class="macro">write!</span>(f, <span class="string">"#c#"</span>), |
| <a href=#701 id=701 data-nosnippet>701</a> ConstKind::Param(param) => { |
| <a href=#702 id=702 data-nosnippet>702</a> <span class="kw">let </span>generics = generics(f.db, param.id.parent()); |
| <a href=#703 id=703 data-nosnippet>703</a> <span class="kw">let </span>param_data = <span class="kw-2">&</span>generics[param.id.local_id()]; |
| <a href=#704 id=704 data-nosnippet>704</a> f.start_location_link_generic(param.id.into()); |
| <a href=#705 id=705 data-nosnippet>705</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, param_data.name().unwrap().display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#706 id=706 data-nosnippet>706</a> f.end_location_link(); |
| <a href=#707 id=707 data-nosnippet>707</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#708 id=708 data-nosnippet>708</a> } |
| <a href=#709 id=709 data-nosnippet>709</a> ConstKind::Value(const_bytes) => render_const_scalar( |
| <a href=#710 id=710 data-nosnippet>710</a> f, |
| <a href=#711 id=711 data-nosnippet>711</a> <span class="kw-2">&</span>const_bytes.value.inner().memory, |
| <a href=#712 id=712 data-nosnippet>712</a> <span class="kw-2">&</span>const_bytes.value.inner().memory_map, |
| <a href=#713 id=713 data-nosnippet>713</a> const_bytes.ty, |
| <a href=#714 id=714 data-nosnippet>714</a> ), |
| <a href=#715 id=715 data-nosnippet>715</a> ConstKind::Unevaluated(unev) => { |
| <a href=#716 id=716 data-nosnippet>716</a> <span class="kw">let </span>c = unev.def.<span class="number">0</span>; |
| <a href=#717 id=717 data-nosnippet>717</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, c.name(f.db))<span class="question-mark">?</span>; |
| <a href=#718 id=718 data-nosnippet>718</a> hir_fmt_generics(f, unev.args.as_slice(), c.generic_def(f.db), <span class="prelude-val">None</span>)<span class="question-mark">?</span>; |
| <a href=#719 id=719 data-nosnippet>719</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#720 id=720 data-nosnippet>720</a> } |
| <a href=#721 id=721 data-nosnippet>721</a> ConstKind::Error(..) => f.write_char(<span class="string">'_'</span>), |
| <a href=#722 id=722 data-nosnippet>722</a> ConstKind::Expr(..) => <span class="macro">write!</span>(f, <span class="string">"<const-expr>"</span>), |
| <a href=#723 id=723 data-nosnippet>723</a> } |
| <a href=#724 id=724 data-nosnippet>724</a> } |
| <a href=#725 id=725 data-nosnippet>725</a>} |
| <a href=#726 id=726 data-nosnippet>726</a> |
| <a href=#727 id=727 data-nosnippet>727</a><span class="kw">fn </span>render_const_scalar<<span class="lifetime">'db</span>>( |
| <a href=#728 id=728 data-nosnippet>728</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#729 id=729 data-nosnippet>729</a> b: <span class="kw-2">&</span>[u8], |
| <a href=#730 id=730 data-nosnippet>730</a> memory_map: <span class="kw-2">&</span>MemoryMap<<span class="lifetime">'db</span>>, |
| <a href=#731 id=731 data-nosnippet>731</a> ty: Ty<<span class="lifetime">'db</span>>, |
| <a href=#732 id=732 data-nosnippet>732</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#733 id=733 data-nosnippet>733</a> <span class="kw">let </span>param_env = ParamEnv::empty(); |
| <a href=#734 id=734 data-nosnippet>734</a> <span class="kw">let </span>infcx = f.interner.infer_ctxt().build(TypingMode::PostAnalysis); |
| <a href=#735 id=735 data-nosnippet>735</a> <span class="kw">let </span>ty = infcx.at(<span class="kw-2">&</span>ObligationCause::new(), param_env).deeply_normalize(ty).unwrap_or(ty); |
| <a href=#736 id=736 data-nosnippet>736</a> render_const_scalar_inner(f, b, memory_map, ty, param_env) |
| <a href=#737 id=737 data-nosnippet>737</a>} |
| <a href=#738 id=738 data-nosnippet>738</a> |
| <a href=#739 id=739 data-nosnippet>739</a><span class="kw">fn </span>render_const_scalar_inner<<span class="lifetime">'db</span>>( |
| <a href=#740 id=740 data-nosnippet>740</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#741 id=741 data-nosnippet>741</a> b: <span class="kw-2">&</span>[u8], |
| <a href=#742 id=742 data-nosnippet>742</a> memory_map: <span class="kw-2">&</span>MemoryMap<<span class="lifetime">'db</span>>, |
| <a href=#743 id=743 data-nosnippet>743</a> ty: Ty<<span class="lifetime">'db</span>>, |
| <a href=#744 id=744 data-nosnippet>744</a> param_env: ParamEnv<<span class="lifetime">'db</span>>, |
| <a href=#745 id=745 data-nosnippet>745</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#746 id=746 data-nosnippet>746</a> <span class="kw">use </span>TyKind; |
| <a href=#747 id=747 data-nosnippet>747</a> <span class="kw">let </span>param_env = ParamEnvAndCrate { param_env, krate: f.krate() }; |
| <a href=#748 id=748 data-nosnippet>748</a> <span class="kw">match </span>ty.kind() { |
| <a href=#749 id=749 data-nosnippet>749</a> TyKind::Bool => <span class="macro">write!</span>(f, <span class="string">"{}"</span>, b[<span class="number">0</span>] != <span class="number">0</span>), |
| <a href=#750 id=750 data-nosnippet>750</a> TyKind::Char => { |
| <a href=#751 id=751 data-nosnippet>751</a> <span class="kw">let </span>it = u128::from_le_bytes(pad16(b, <span class="bool-val">false</span>)) <span class="kw">as </span>u32; |
| <a href=#752 id=752 data-nosnippet>752</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(c) = char::try_from(it) <span class="kw">else </span>{ |
| <a href=#753 id=753 data-nosnippet>753</a> <span class="kw">return </span>f.write_str(<span class="string">"<unicode-error>"</span>); |
| <a href=#754 id=754 data-nosnippet>754</a> }; |
| <a href=#755 id=755 data-nosnippet>755</a> <span class="macro">write!</span>(f, <span class="string">"{c:?}"</span>) |
| <a href=#756 id=756 data-nosnippet>756</a> } |
| <a href=#757 id=757 data-nosnippet>757</a> TyKind::Int(<span class="kw">_</span>) => { |
| <a href=#758 id=758 data-nosnippet>758</a> <span class="kw">let </span>it = i128::from_le_bytes(pad16(b, <span class="bool-val">true</span>)); |
| <a href=#759 id=759 data-nosnippet>759</a> <span class="macro">write!</span>(f, <span class="string">"{it}"</span>) |
| <a href=#760 id=760 data-nosnippet>760</a> } |
| <a href=#761 id=761 data-nosnippet>761</a> TyKind::Uint(<span class="kw">_</span>) => { |
| <a href=#762 id=762 data-nosnippet>762</a> <span class="kw">let </span>it = u128::from_le_bytes(pad16(b, <span class="bool-val">false</span>)); |
| <a href=#763 id=763 data-nosnippet>763</a> <span class="macro">write!</span>(f, <span class="string">"{it}"</span>) |
| <a href=#764 id=764 data-nosnippet>764</a> } |
| <a href=#765 id=765 data-nosnippet>765</a> TyKind::Float(fl) => <span class="kw">match </span>fl { |
| <a href=#766 id=766 data-nosnippet>766</a> FloatTy::F16 => { |
| <a href=#767 id=767 data-nosnippet>767</a> <span class="comment">// FIXME(#17451): Replace with builtins once they are stabilised. |
| <a href=#768 id=768 data-nosnippet>768</a> </span><span class="kw">let </span>it = f16::from_bits(u16::from_le_bytes(b.try_into().unwrap()).into()); |
| <a href=#769 id=769 data-nosnippet>769</a> <span class="kw">let </span>s = it.to_string(); |
| <a href=#770 id=770 data-nosnippet>770</a> <span class="kw">if </span>s.strip_prefix(<span class="string">'-'</span>).unwrap_or(<span class="kw-2">&</span>s).chars().all(|c| c.is_ascii_digit()) { |
| <a href=#771 id=771 data-nosnippet>771</a> <span class="comment">// Match Rust debug formatting |
| <a href=#772 id=772 data-nosnippet>772</a> </span><span class="macro">write!</span>(f, <span class="string">"{s}.0"</span>) |
| <a href=#773 id=773 data-nosnippet>773</a> } <span class="kw">else </span>{ |
| <a href=#774 id=774 data-nosnippet>774</a> <span class="macro">write!</span>(f, <span class="string">"{s}"</span>) |
| <a href=#775 id=775 data-nosnippet>775</a> } |
| <a href=#776 id=776 data-nosnippet>776</a> } |
| <a href=#777 id=777 data-nosnippet>777</a> FloatTy::F32 => { |
| <a href=#778 id=778 data-nosnippet>778</a> <span class="kw">let </span>it = f32::from_le_bytes(b.try_into().unwrap()); |
| <a href=#779 id=779 data-nosnippet>779</a> <span class="macro">write!</span>(f, <span class="string">"{it:?}"</span>) |
| <a href=#780 id=780 data-nosnippet>780</a> } |
| <a href=#781 id=781 data-nosnippet>781</a> FloatTy::F64 => { |
| <a href=#782 id=782 data-nosnippet>782</a> <span class="kw">let </span>it = f64::from_le_bytes(b.try_into().unwrap()); |
| <a href=#783 id=783 data-nosnippet>783</a> <span class="macro">write!</span>(f, <span class="string">"{it:?}"</span>) |
| <a href=#784 id=784 data-nosnippet>784</a> } |
| <a href=#785 id=785 data-nosnippet>785</a> FloatTy::F128 => { |
| <a href=#786 id=786 data-nosnippet>786</a> <span class="comment">// FIXME(#17451): Replace with builtins once they are stabilised. |
| <a href=#787 id=787 data-nosnippet>787</a> </span><span class="kw">let </span>it = f128::from_bits(u128::from_le_bytes(b.try_into().unwrap())); |
| <a href=#788 id=788 data-nosnippet>788</a> <span class="kw">let </span>s = it.to_string(); |
| <a href=#789 id=789 data-nosnippet>789</a> <span class="kw">if </span>s.strip_prefix(<span class="string">'-'</span>).unwrap_or(<span class="kw-2">&</span>s).chars().all(|c| c.is_ascii_digit()) { |
| <a href=#790 id=790 data-nosnippet>790</a> <span class="comment">// Match Rust debug formatting |
| <a href=#791 id=791 data-nosnippet>791</a> </span><span class="macro">write!</span>(f, <span class="string">"{s}.0"</span>) |
| <a href=#792 id=792 data-nosnippet>792</a> } <span class="kw">else </span>{ |
| <a href=#793 id=793 data-nosnippet>793</a> <span class="macro">write!</span>(f, <span class="string">"{s}"</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> TyKind::Ref(<span class="kw">_</span>, t, <span class="kw">_</span>) => <span class="kw">match </span>t.kind() { |
| <a href=#798 id=798 data-nosnippet>798</a> TyKind::Str => { |
| <a href=#799 id=799 data-nosnippet>799</a> <span class="kw">let </span>addr = usize::from_le_bytes(b[<span class="number">0</span>..b.len() / <span class="number">2</span>].try_into().unwrap()); |
| <a href=#800 id=800 data-nosnippet>800</a> <span class="kw">let </span>size = usize::from_le_bytes(b[b.len() / <span class="number">2</span>..].try_into().unwrap()); |
| <a href=#801 id=801 data-nosnippet>801</a> <span class="kw">let </span><span class="prelude-val">Some</span>(bytes) = memory_map.get(addr, size) <span class="kw">else </span>{ |
| <a href=#802 id=802 data-nosnippet>802</a> <span class="kw">return </span>f.write_str(<span class="string">"<ref-data-not-available>"</span>); |
| <a href=#803 id=803 data-nosnippet>803</a> }; |
| <a href=#804 id=804 data-nosnippet>804</a> <span class="kw">let </span>s = std::str::from_utf8(bytes).unwrap_or(<span class="string">"<utf8-error>"</span>); |
| <a href=#805 id=805 data-nosnippet>805</a> <span class="macro">write!</span>(f, <span class="string">"{s:?}"</span>) |
| <a href=#806 id=806 data-nosnippet>806</a> } |
| <a href=#807 id=807 data-nosnippet>807</a> TyKind::Slice(ty) => { |
| <a href=#808 id=808 data-nosnippet>808</a> <span class="kw">let </span>addr = usize::from_le_bytes(b[<span class="number">0</span>..b.len() / <span class="number">2</span>].try_into().unwrap()); |
| <a href=#809 id=809 data-nosnippet>809</a> <span class="kw">let </span>count = usize::from_le_bytes(b[b.len() / <span class="number">2</span>..].try_into().unwrap()); |
| <a href=#810 id=810 data-nosnippet>810</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(layout) = f.db.layout_of_ty(ty.store(), param_env.store()) <span class="kw">else </span>{ |
| <a href=#811 id=811 data-nosnippet>811</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#812 id=812 data-nosnippet>812</a> }; |
| <a href=#813 id=813 data-nosnippet>813</a> <span class="kw">let </span>size_one = layout.size.bytes_usize(); |
| <a href=#814 id=814 data-nosnippet>814</a> <span class="kw">let </span><span class="prelude-val">Some</span>(bytes) = memory_map.get(addr, size_one * count) <span class="kw">else </span>{ |
| <a href=#815 id=815 data-nosnippet>815</a> <span class="kw">return </span>f.write_str(<span class="string">"<ref-data-not-available>"</span>); |
| <a href=#816 id=816 data-nosnippet>816</a> }; |
| <a href=#817 id=817 data-nosnippet>817</a> <span class="kw">let </span>expected_len = count * size_one; |
| <a href=#818 id=818 data-nosnippet>818</a> <span class="kw">if </span>bytes.len() < expected_len { |
| <a href=#819 id=819 data-nosnippet>819</a> <span class="macro">never!</span>( |
| <a href=#820 id=820 data-nosnippet>820</a> <span class="string">"Memory map size is too small. Expected {expected_len}, got {}"</span>, |
| <a href=#821 id=821 data-nosnippet>821</a> bytes.len(), |
| <a href=#822 id=822 data-nosnippet>822</a> ); |
| <a href=#823 id=823 data-nosnippet>823</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#824 id=824 data-nosnippet>824</a> } |
| <a href=#825 id=825 data-nosnippet>825</a> f.write_str(<span class="string">"&["</span>)<span class="question-mark">?</span>; |
| <a href=#826 id=826 data-nosnippet>826</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#827 id=827 data-nosnippet>827</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..count { |
| <a href=#828 id=828 data-nosnippet>828</a> <span class="kw">if </span>first { |
| <a href=#829 id=829 data-nosnippet>829</a> first = <span class="bool-val">false</span>; |
| <a href=#830 id=830 data-nosnippet>830</a> } <span class="kw">else </span>{ |
| <a href=#831 id=831 data-nosnippet>831</a> f.write_str(<span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#832 id=832 data-nosnippet>832</a> } |
| <a href=#833 id=833 data-nosnippet>833</a> <span class="kw">let </span>offset = size_one * i; |
| <a href=#834 id=834 data-nosnippet>834</a> render_const_scalar(f, <span class="kw-2">&</span>bytes[offset..offset + size_one], memory_map, ty)<span class="question-mark">?</span>; |
| <a href=#835 id=835 data-nosnippet>835</a> } |
| <a href=#836 id=836 data-nosnippet>836</a> f.write_str(<span class="string">"]"</span>) |
| <a href=#837 id=837 data-nosnippet>837</a> } |
| <a href=#838 id=838 data-nosnippet>838</a> TyKind::Dynamic(<span class="kw">_</span>, <span class="kw">_</span>) => { |
| <a href=#839 id=839 data-nosnippet>839</a> <span class="kw">let </span>addr = usize::from_le_bytes(b[<span class="number">0</span>..b.len() / <span class="number">2</span>].try_into().unwrap()); |
| <a href=#840 id=840 data-nosnippet>840</a> <span class="kw">let </span>ty_id = usize::from_le_bytes(b[b.len() / <span class="number">2</span>..].try_into().unwrap()); |
| <a href=#841 id=841 data-nosnippet>841</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(t) = memory_map.vtable_ty(ty_id) <span class="kw">else </span>{ |
| <a href=#842 id=842 data-nosnippet>842</a> <span class="kw">return </span>f.write_str(<span class="string">"<ty-missing-in-vtable-map>"</span>); |
| <a href=#843 id=843 data-nosnippet>843</a> }; |
| <a href=#844 id=844 data-nosnippet>844</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(layout) = f.db.layout_of_ty(t.store(), param_env.store()) <span class="kw">else </span>{ |
| <a href=#845 id=845 data-nosnippet>845</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#846 id=846 data-nosnippet>846</a> }; |
| <a href=#847 id=847 data-nosnippet>847</a> <span class="kw">let </span>size = layout.size.bytes_usize(); |
| <a href=#848 id=848 data-nosnippet>848</a> <span class="kw">let </span><span class="prelude-val">Some</span>(bytes) = memory_map.get(addr, size) <span class="kw">else </span>{ |
| <a href=#849 id=849 data-nosnippet>849</a> <span class="kw">return </span>f.write_str(<span class="string">"<ref-data-not-available>"</span>); |
| <a href=#850 id=850 data-nosnippet>850</a> }; |
| <a href=#851 id=851 data-nosnippet>851</a> f.write_str(<span class="string">"&"</span>)<span class="question-mark">?</span>; |
| <a href=#852 id=852 data-nosnippet>852</a> render_const_scalar(f, bytes, memory_map, t) |
| <a href=#853 id=853 data-nosnippet>853</a> } |
| <a href=#854 id=854 data-nosnippet>854</a> TyKind::Adt(adt, <span class="kw">_</span>) <span class="kw">if </span>b.len() == <span class="number">2 </span>* size_of::<usize>() => <span class="kw">match </span>adt.def_id().<span class="number">0 </span>{ |
| <a href=#855 id=855 data-nosnippet>855</a> hir_def::AdtId::StructId(s) => { |
| <a href=#856 id=856 data-nosnippet>856</a> <span class="kw">let </span>data = f.db.struct_signature(s); |
| <a href=#857 id=857 data-nosnippet>857</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=#858 id=858 data-nosnippet>858</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#859 id=859 data-nosnippet>859</a> } |
| <a href=#860 id=860 data-nosnippet>860</a> <span class="kw">_ </span>=> f.write_str(<span class="string">"<unsized-enum-or-union>"</span>), |
| <a href=#861 id=861 data-nosnippet>861</a> }, |
| <a href=#862 id=862 data-nosnippet>862</a> <span class="kw">_ </span>=> { |
| <a href=#863 id=863 data-nosnippet>863</a> <span class="kw">let </span>addr = usize::from_le_bytes(<span class="kw">match </span>b.try_into() { |
| <a href=#864 id=864 data-nosnippet>864</a> <span class="prelude-val">Ok</span>(b) => b, |
| <a href=#865 id=865 data-nosnippet>865</a> <span class="prelude-val">Err</span>(<span class="kw">_</span>) => { |
| <a href=#866 id=866 data-nosnippet>866</a> <span class="macro">never!</span>( |
| <a href=#867 id=867 data-nosnippet>867</a> <span class="string">"tried rendering ty {:?} in const ref with incorrect byte count {}"</span>, |
| <a href=#868 id=868 data-nosnippet>868</a> t, |
| <a href=#869 id=869 data-nosnippet>869</a> b.len() |
| <a href=#870 id=870 data-nosnippet>870</a> ); |
| <a href=#871 id=871 data-nosnippet>871</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#872 id=872 data-nosnippet>872</a> } |
| <a href=#873 id=873 data-nosnippet>873</a> }); |
| <a href=#874 id=874 data-nosnippet>874</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(layout) = f.db.layout_of_ty(t.store(), param_env.store()) <span class="kw">else </span>{ |
| <a href=#875 id=875 data-nosnippet>875</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#876 id=876 data-nosnippet>876</a> }; |
| <a href=#877 id=877 data-nosnippet>877</a> <span class="kw">let </span>size = layout.size.bytes_usize(); |
| <a href=#878 id=878 data-nosnippet>878</a> <span class="kw">let </span><span class="prelude-val">Some</span>(bytes) = memory_map.get(addr, size) <span class="kw">else </span>{ |
| <a href=#879 id=879 data-nosnippet>879</a> <span class="kw">return </span>f.write_str(<span class="string">"<ref-data-not-available>"</span>); |
| <a href=#880 id=880 data-nosnippet>880</a> }; |
| <a href=#881 id=881 data-nosnippet>881</a> f.write_str(<span class="string">"&"</span>)<span class="question-mark">?</span>; |
| <a href=#882 id=882 data-nosnippet>882</a> render_const_scalar(f, bytes, memory_map, t) |
| <a href=#883 id=883 data-nosnippet>883</a> } |
| <a href=#884 id=884 data-nosnippet>884</a> }, |
| <a href=#885 id=885 data-nosnippet>885</a> TyKind::Tuple(tys) => { |
| <a href=#886 id=886 data-nosnippet>886</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(layout) = f.db.layout_of_ty(ty.store(), param_env.store()) <span class="kw">else </span>{ |
| <a href=#887 id=887 data-nosnippet>887</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#888 id=888 data-nosnippet>888</a> }; |
| <a href=#889 id=889 data-nosnippet>889</a> f.write_str(<span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#890 id=890 data-nosnippet>890</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#891 id=891 data-nosnippet>891</a> <span class="kw">for </span>(id, ty) <span class="kw">in </span>tys.iter().enumerate() { |
| <a href=#892 id=892 data-nosnippet>892</a> <span class="kw">if </span>first { |
| <a href=#893 id=893 data-nosnippet>893</a> first = <span class="bool-val">false</span>; |
| <a href=#894 id=894 data-nosnippet>894</a> } <span class="kw">else </span>{ |
| <a href=#895 id=895 data-nosnippet>895</a> f.write_str(<span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#896 id=896 data-nosnippet>896</a> } |
| <a href=#897 id=897 data-nosnippet>897</a> <span class="kw">let </span>offset = layout.fields.offset(id).bytes_usize(); |
| <a href=#898 id=898 data-nosnippet>898</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(layout) = f.db.layout_of_ty(ty.store(), param_env.store()) <span class="kw">else </span>{ |
| <a href=#899 id=899 data-nosnippet>899</a> f.write_str(<span class="string">"<layout-error>"</span>)<span class="question-mark">?</span>; |
| <a href=#900 id=900 data-nosnippet>900</a> <span class="kw">continue</span>; |
| <a href=#901 id=901 data-nosnippet>901</a> }; |
| <a href=#902 id=902 data-nosnippet>902</a> <span class="kw">let </span>size = layout.size.bytes_usize(); |
| <a href=#903 id=903 data-nosnippet>903</a> render_const_scalar(f, <span class="kw-2">&</span>b[offset..offset + size], memory_map, ty)<span class="question-mark">?</span>; |
| <a href=#904 id=904 data-nosnippet>904</a> } |
| <a href=#905 id=905 data-nosnippet>905</a> f.write_str(<span class="string">")"</span>) |
| <a href=#906 id=906 data-nosnippet>906</a> } |
| <a href=#907 id=907 data-nosnippet>907</a> TyKind::Adt(def, args) => { |
| <a href=#908 id=908 data-nosnippet>908</a> <span class="kw">let </span>def = def.def_id().<span class="number">0</span>; |
| <a href=#909 id=909 data-nosnippet>909</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(layout) = f.db.layout_of_adt(def, args.store(), param_env.store()) <span class="kw">else </span>{ |
| <a href=#910 id=910 data-nosnippet>910</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#911 id=911 data-nosnippet>911</a> }; |
| <a href=#912 id=912 data-nosnippet>912</a> <span class="kw">match </span>def { |
| <a href=#913 id=913 data-nosnippet>913</a> hir_def::AdtId::StructId(s) => { |
| <a href=#914 id=914 data-nosnippet>914</a> <span class="kw">let </span>data = f.db.struct_signature(s); |
| <a href=#915 id=915 data-nosnippet>915</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=#916 id=916 data-nosnippet>916</a> <span class="kw">let </span>field_types = f.db.field_types(s.into()); |
| <a href=#917 id=917 data-nosnippet>917</a> render_variant_after_name( |
| <a href=#918 id=918 data-nosnippet>918</a> s.fields(f.db), |
| <a href=#919 id=919 data-nosnippet>919</a> f, |
| <a href=#920 id=920 data-nosnippet>920</a> field_types, |
| <a href=#921 id=921 data-nosnippet>921</a> f.db.trait_environment(def.into()), |
| <a href=#922 id=922 data-nosnippet>922</a> <span class="kw-2">&</span>layout, |
| <a href=#923 id=923 data-nosnippet>923</a> args, |
| <a href=#924 id=924 data-nosnippet>924</a> b, |
| <a href=#925 id=925 data-nosnippet>925</a> memory_map, |
| <a href=#926 id=926 data-nosnippet>926</a> ) |
| <a href=#927 id=927 data-nosnippet>927</a> } |
| <a href=#928 id=928 data-nosnippet>928</a> hir_def::AdtId::UnionId(u) => { |
| <a href=#929 id=929 data-nosnippet>929</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, f.db.union_signature(u).name.display(f.db, f.edition())) |
| <a href=#930 id=930 data-nosnippet>930</a> } |
| <a href=#931 id=931 data-nosnippet>931</a> hir_def::AdtId::EnumId(e) => { |
| <a href=#932 id=932 data-nosnippet>932</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(target_data_layout) = f.db.target_data_layout(f.krate()) <span class="kw">else </span>{ |
| <a href=#933 id=933 data-nosnippet>933</a> <span class="kw">return </span>f.write_str(<span class="string">"<target-layout-not-available>"</span>); |
| <a href=#934 id=934 data-nosnippet>934</a> }; |
| <a href=#935 id=935 data-nosnippet>935</a> <span class="kw">let </span><span class="prelude-val">Some</span>((var_id, var_layout)) = |
| <a href=#936 id=936 data-nosnippet>936</a> detect_variant_from_bytes(<span class="kw-2">&</span>layout, f.db, <span class="kw-2">&</span>target_data_layout, b, e) |
| <a href=#937 id=937 data-nosnippet>937</a> <span class="kw">else </span>{ |
| <a href=#938 id=938 data-nosnippet>938</a> <span class="kw">return </span>f.write_str(<span class="string">"<failed-to-detect-variant>"</span>); |
| <a href=#939 id=939 data-nosnippet>939</a> }; |
| <a href=#940 id=940 data-nosnippet>940</a> <span class="kw">let </span>loc = var_id.lookup(f.db); |
| <a href=#941 id=941 data-nosnippet>941</a> <span class="macro">write!</span>( |
| <a href=#942 id=942 data-nosnippet>942</a> f, |
| <a href=#943 id=943 data-nosnippet>943</a> <span class="string">"{}"</span>, |
| <a href=#944 id=944 data-nosnippet>944</a> loc.parent.enum_variants(f.db).variants[loc.index <span class="kw">as </span>usize] |
| <a href=#945 id=945 data-nosnippet>945</a> .<span class="number">1 |
| <a href=#946 id=946 data-nosnippet>946</a> </span>.display(f.db, f.edition()) |
| <a href=#947 id=947 data-nosnippet>947</a> )<span class="question-mark">?</span>; |
| <a href=#948 id=948 data-nosnippet>948</a> <span class="kw">let </span>field_types = f.db.field_types(var_id.into()); |
| <a href=#949 id=949 data-nosnippet>949</a> render_variant_after_name( |
| <a href=#950 id=950 data-nosnippet>950</a> var_id.fields(f.db), |
| <a href=#951 id=951 data-nosnippet>951</a> f, |
| <a href=#952 id=952 data-nosnippet>952</a> field_types, |
| <a href=#953 id=953 data-nosnippet>953</a> f.db.trait_environment(def.into()), |
| <a href=#954 id=954 data-nosnippet>954</a> var_layout, |
| <a href=#955 id=955 data-nosnippet>955</a> args, |
| <a href=#956 id=956 data-nosnippet>956</a> b, |
| <a href=#957 id=957 data-nosnippet>957</a> memory_map, |
| <a href=#958 id=958 data-nosnippet>958</a> ) |
| <a href=#959 id=959 data-nosnippet>959</a> } |
| <a href=#960 id=960 data-nosnippet>960</a> } |
| <a href=#961 id=961 data-nosnippet>961</a> } |
| <a href=#962 id=962 data-nosnippet>962</a> TyKind::FnDef(..) => ty.hir_fmt(f), |
| <a href=#963 id=963 data-nosnippet>963</a> TyKind::FnPtr(<span class="kw">_</span>, <span class="kw">_</span>) | TyKind::RawPtr(<span class="kw">_</span>, <span class="kw">_</span>) => { |
| <a href=#964 id=964 data-nosnippet>964</a> <span class="kw">let </span>it = u128::from_le_bytes(pad16(b, <span class="bool-val">false</span>)); |
| <a href=#965 id=965 data-nosnippet>965</a> <span class="macro">write!</span>(f, <span class="string">"{it:#X} as "</span>)<span class="question-mark">?</span>; |
| <a href=#966 id=966 data-nosnippet>966</a> ty.hir_fmt(f) |
| <a href=#967 id=967 data-nosnippet>967</a> } |
| <a href=#968 id=968 data-nosnippet>968</a> TyKind::Array(ty, len) => { |
| <a href=#969 id=969 data-nosnippet>969</a> <span class="kw">let </span><span class="prelude-val">Some</span>(len) = consteval::try_const_usize(f.db, len) <span class="kw">else </span>{ |
| <a href=#970 id=970 data-nosnippet>970</a> <span class="kw">return </span>f.write_str(<span class="string">"<unknown-array-len>"</span>); |
| <a href=#971 id=971 data-nosnippet>971</a> }; |
| <a href=#972 id=972 data-nosnippet>972</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(layout) = f.db.layout_of_ty(ty.store(), param_env.store()) <span class="kw">else </span>{ |
| <a href=#973 id=973 data-nosnippet>973</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#974 id=974 data-nosnippet>974</a> }; |
| <a href=#975 id=975 data-nosnippet>975</a> <span class="kw">let </span>size_one = layout.size.bytes_usize(); |
| <a href=#976 id=976 data-nosnippet>976</a> f.write_str(<span class="string">"["</span>)<span class="question-mark">?</span>; |
| <a href=#977 id=977 data-nosnippet>977</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#978 id=978 data-nosnippet>978</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..len <span class="kw">as </span>usize { |
| <a href=#979 id=979 data-nosnippet>979</a> <span class="kw">if </span>first { |
| <a href=#980 id=980 data-nosnippet>980</a> first = <span class="bool-val">false</span>; |
| <a href=#981 id=981 data-nosnippet>981</a> } <span class="kw">else </span>{ |
| <a href=#982 id=982 data-nosnippet>982</a> f.write_str(<span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#983 id=983 data-nosnippet>983</a> } |
| <a href=#984 id=984 data-nosnippet>984</a> <span class="kw">let </span>offset = size_one * i; |
| <a href=#985 id=985 data-nosnippet>985</a> render_const_scalar(f, <span class="kw-2">&</span>b[offset..offset + size_one], memory_map, ty)<span class="question-mark">?</span>; |
| <a href=#986 id=986 data-nosnippet>986</a> } |
| <a href=#987 id=987 data-nosnippet>987</a> f.write_str(<span class="string">"]"</span>) |
| <a href=#988 id=988 data-nosnippet>988</a> } |
| <a href=#989 id=989 data-nosnippet>989</a> TyKind::Never => f.write_str(<span class="string">"!"</span>), |
| <a href=#990 id=990 data-nosnippet>990</a> TyKind::Closure(<span class="kw">_</span>, <span class="kw">_</span>) => f.write_str(<span class="string">"<closure>"</span>), |
| <a href=#991 id=991 data-nosnippet>991</a> TyKind::Coroutine(<span class="kw">_</span>, <span class="kw">_</span>) => f.write_str(<span class="string">"<coroutine>"</span>), |
| <a href=#992 id=992 data-nosnippet>992</a> TyKind::CoroutineWitness(<span class="kw">_</span>, <span class="kw">_</span>) => f.write_str(<span class="string">"<coroutine-witness>"</span>), |
| <a href=#993 id=993 data-nosnippet>993</a> TyKind::CoroutineClosure(<span class="kw">_</span>, <span class="kw">_</span>) => f.write_str(<span class="string">"<coroutine-closure>"</span>), |
| <a href=#994 id=994 data-nosnippet>994</a> TyKind::UnsafeBinder(<span class="kw">_</span>) => f.write_str(<span class="string">"<unsafe-binder>"</span>), |
| <a href=#995 id=995 data-nosnippet>995</a> <span class="comment">// The below arms are unreachable, since const eval will bail out before here. |
| <a href=#996 id=996 data-nosnippet>996</a> </span>TyKind::Foreign(<span class="kw">_</span>) => f.write_str(<span class="string">"<extern-type>"</span>), |
| <a href=#997 id=997 data-nosnippet>997</a> TyKind::Pat(<span class="kw">_</span>, <span class="kw">_</span>) => f.write_str(<span class="string">"<pat>"</span>), |
| <a href=#998 id=998 data-nosnippet>998</a> TyKind::Error(..) |
| <a href=#999 id=999 data-nosnippet>999</a> | TyKind::Placeholder(<span class="kw">_</span>) |
| <a href=#1000 id=1000 data-nosnippet>1000</a> | TyKind::Alias(<span class="kw">_</span>, <span class="kw">_</span>) |
| <a href=#1001 id=1001 data-nosnippet>1001</a> | TyKind::Param(<span class="kw">_</span>) |
| <a href=#1002 id=1002 data-nosnippet>1002</a> | TyKind::Bound(<span class="kw">_</span>, <span class="kw">_</span>) |
| <a href=#1003 id=1003 data-nosnippet>1003</a> | TyKind::Infer(<span class="kw">_</span>) => f.write_str(<span class="string">"<placeholder-or-unknown-type>"</span>), |
| <a href=#1004 id=1004 data-nosnippet>1004</a> <span class="comment">// The below arms are unreachable, since we handled them in ref case. |
| <a href=#1005 id=1005 data-nosnippet>1005</a> </span>TyKind::Slice(<span class="kw">_</span>) | TyKind::Str | TyKind::Dynamic(<span class="kw">_</span>, <span class="kw">_</span>) => f.write_str(<span class="string">"<unsized-value>"</span>), |
| <a href=#1006 id=1006 data-nosnippet>1006</a> } |
| <a href=#1007 id=1007 data-nosnippet>1007</a>} |
| <a href=#1008 id=1008 data-nosnippet>1008</a> |
| <a href=#1009 id=1009 data-nosnippet>1009</a><span class="kw">fn </span>render_variant_after_name<<span class="lifetime">'db</span>>( |
| <a href=#1010 id=1010 data-nosnippet>1010</a> data: <span class="kw-2">&</span>VariantFields, |
| <a href=#1011 id=1011 data-nosnippet>1011</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1012 id=1012 data-nosnippet>1012</a> field_types: <span class="kw-2">&</span><span class="lifetime">'db </span>ArenaMap<LocalFieldId, StoredEarlyBinder<StoredTy>>, |
| <a href=#1013 id=1013 data-nosnippet>1013</a> param_env: ParamEnv<<span class="lifetime">'db</span>>, |
| <a href=#1014 id=1014 data-nosnippet>1014</a> layout: <span class="kw-2">&</span>Layout, |
| <a href=#1015 id=1015 data-nosnippet>1015</a> args: GenericArgs<<span class="lifetime">'db</span>>, |
| <a href=#1016 id=1016 data-nosnippet>1016</a> b: <span class="kw-2">&</span>[u8], |
| <a href=#1017 id=1017 data-nosnippet>1017</a> memory_map: <span class="kw-2">&</span>MemoryMap<<span class="lifetime">'db</span>>, |
| <a href=#1018 id=1018 data-nosnippet>1018</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1019 id=1019 data-nosnippet>1019</a> <span class="kw">let </span>param_env = ParamEnvAndCrate { param_env, krate: f.krate() }; |
| <a href=#1020 id=1020 data-nosnippet>1020</a> <span class="kw">match </span>data.shape { |
| <a href=#1021 id=1021 data-nosnippet>1021</a> FieldsShape::Record | FieldsShape::Tuple => { |
| <a href=#1022 id=1022 data-nosnippet>1022</a> <span class="kw">let </span>render_field = |f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, id: LocalFieldId| { |
| <a href=#1023 id=1023 data-nosnippet>1023</a> <span class="kw">let </span>offset = layout.fields.offset(u32::from(id.into_raw()) <span class="kw">as </span>usize).bytes_usize(); |
| <a href=#1024 id=1024 data-nosnippet>1024</a> <span class="kw">let </span>ty = field_types[id].get().instantiate(f.interner, args); |
| <a href=#1025 id=1025 data-nosnippet>1025</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(layout) = f.db.layout_of_ty(ty.store(), param_env.store()) <span class="kw">else </span>{ |
| <a href=#1026 id=1026 data-nosnippet>1026</a> <span class="kw">return </span>f.write_str(<span class="string">"<layout-error>"</span>); |
| <a href=#1027 id=1027 data-nosnippet>1027</a> }; |
| <a href=#1028 id=1028 data-nosnippet>1028</a> <span class="kw">let </span>size = layout.size.bytes_usize(); |
| <a href=#1029 id=1029 data-nosnippet>1029</a> render_const_scalar(f, <span class="kw-2">&</span>b[offset..offset + size], memory_map, ty) |
| <a href=#1030 id=1030 data-nosnippet>1030</a> }; |
| <a href=#1031 id=1031 data-nosnippet>1031</a> <span class="kw">let </span><span class="kw-2">mut </span>it = data.fields().iter(); |
| <a href=#1032 id=1032 data-nosnippet>1032</a> <span class="kw">if </span><span class="macro">matches!</span>(data.shape, FieldsShape::Record) { |
| <a href=#1033 id=1033 data-nosnippet>1033</a> <span class="macro">write!</span>(f, <span class="string">" {{"</span>)<span class="question-mark">?</span>; |
| <a href=#1034 id=1034 data-nosnippet>1034</a> <span class="kw">if let </span><span class="prelude-val">Some</span>((id, data)) = it.next() { |
| <a href=#1035 id=1035 data-nosnippet>1035</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=#1036 id=1036 data-nosnippet>1036</a> render_field(f, id)<span class="question-mark">?</span>; |
| <a href=#1037 id=1037 data-nosnippet>1037</a> } |
| <a href=#1038 id=1038 data-nosnippet>1038</a> <span class="kw">for </span>(id, data) <span class="kw">in </span>it { |
| <a href=#1039 id=1039 data-nosnippet>1039</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=#1040 id=1040 data-nosnippet>1040</a> render_field(f, id)<span class="question-mark">?</span>; |
| <a href=#1041 id=1041 data-nosnippet>1041</a> } |
| <a href=#1042 id=1042 data-nosnippet>1042</a> <span class="macro">write!</span>(f, <span class="string">" }}"</span>)<span class="question-mark">?</span>; |
| <a href=#1043 id=1043 data-nosnippet>1043</a> } <span class="kw">else </span>{ |
| <a href=#1044 id=1044 data-nosnippet>1044</a> <span class="kw">let </span><span class="kw-2">mut </span>it = it.map(|it| it.<span class="number">0</span>); |
| <a href=#1045 id=1045 data-nosnippet>1045</a> <span class="macro">write!</span>(f, <span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#1046 id=1046 data-nosnippet>1046</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(id) = it.next() { |
| <a href=#1047 id=1047 data-nosnippet>1047</a> render_field(f, id)<span class="question-mark">?</span>; |
| <a href=#1048 id=1048 data-nosnippet>1048</a> } |
| <a href=#1049 id=1049 data-nosnippet>1049</a> <span class="kw">for </span>id <span class="kw">in </span>it { |
| <a href=#1050 id=1050 data-nosnippet>1050</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1051 id=1051 data-nosnippet>1051</a> render_field(f, id)<span class="question-mark">?</span>; |
| <a href=#1052 id=1052 data-nosnippet>1052</a> } |
| <a href=#1053 id=1053 data-nosnippet>1053</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#1054 id=1054 data-nosnippet>1054</a> } |
| <a href=#1055 id=1055 data-nosnippet>1055</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1056 id=1056 data-nosnippet>1056</a> } |
| <a href=#1057 id=1057 data-nosnippet>1057</a> FieldsShape::Unit => <span class="prelude-val">Ok</span>(()), |
| <a href=#1058 id=1058 data-nosnippet>1058</a> } |
| <a href=#1059 id=1059 data-nosnippet>1059</a>} |
| <a href=#1060 id=1060 data-nosnippet>1060</a> |
| <a href=#1061 id=1061 data-nosnippet>1061</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>Ty<<span class="lifetime">'db</span>> { |
| <a href=#1062 id=1062 data-nosnippet>1062</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 { db, .. }: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1063 id=1063 data-nosnippet>1063</a> <span class="kw">let </span>interner = f.interner; |
| <a href=#1064 id=1064 data-nosnippet>1064</a> <span class="kw">if </span>f.should_truncate() { |
| <a href=#1065 id=1065 data-nosnippet>1065</a> <span class="kw">return </span><span class="macro">write!</span>(f, <span class="string">"{TYPE_HINT_TRUNCATION}"</span>); |
| <a href=#1066 id=1066 data-nosnippet>1066</a> } |
| <a href=#1067 id=1067 data-nosnippet>1067</a> |
| <a href=#1068 id=1068 data-nosnippet>1068</a> <span class="kw">let </span>trait_bounds_need_parens = mem::replace(<span class="kw-2">&mut </span>f.trait_bounds_need_parens, <span class="bool-val">false</span>); |
| <a href=#1069 id=1069 data-nosnippet>1069</a> <span class="kw">match </span><span class="self">self</span>.kind() { |
| <a href=#1070 id=1070 data-nosnippet>1070</a> TyKind::Never => <span class="macro">write!</span>(f, <span class="string">"!"</span>)<span class="question-mark">?</span>, |
| <a href=#1071 id=1071 data-nosnippet>1071</a> TyKind::Str => <span class="macro">write!</span>(f, <span class="string">"str"</span>)<span class="question-mark">?</span>, |
| <a href=#1072 id=1072 data-nosnippet>1072</a> TyKind::Bool => <span class="macro">write!</span>(f, <span class="string">"bool"</span>)<span class="question-mark">?</span>, |
| <a href=#1073 id=1073 data-nosnippet>1073</a> TyKind::Char => <span class="macro">write!</span>(f, <span class="string">"char"</span>)<span class="question-mark">?</span>, |
| <a href=#1074 id=1074 data-nosnippet>1074</a> TyKind::Float(t) => <span class="macro">write!</span>(f, <span class="string">"{}"</span>, primitive::float_ty_to_string(t))<span class="question-mark">?</span>, |
| <a href=#1075 id=1075 data-nosnippet>1075</a> TyKind::Int(t) => <span class="macro">write!</span>(f, <span class="string">"{}"</span>, primitive::int_ty_to_string(t))<span class="question-mark">?</span>, |
| <a href=#1076 id=1076 data-nosnippet>1076</a> TyKind::Uint(t) => <span class="macro">write!</span>(f, <span class="string">"{}"</span>, primitive::uint_ty_to_string(t))<span class="question-mark">?</span>, |
| <a href=#1077 id=1077 data-nosnippet>1077</a> TyKind::Slice(t) => { |
| <a href=#1078 id=1078 data-nosnippet>1078</a> <span class="macro">write!</span>(f, <span class="string">"["</span>)<span class="question-mark">?</span>; |
| <a href=#1079 id=1079 data-nosnippet>1079</a> t.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1080 id=1080 data-nosnippet>1080</a> <span class="macro">write!</span>(f, <span class="string">"]"</span>)<span class="question-mark">?</span>; |
| <a href=#1081 id=1081 data-nosnippet>1081</a> } |
| <a href=#1082 id=1082 data-nosnippet>1082</a> TyKind::Array(t, c) => { |
| <a href=#1083 id=1083 data-nosnippet>1083</a> <span class="macro">write!</span>(f, <span class="string">"["</span>)<span class="question-mark">?</span>; |
| <a href=#1084 id=1084 data-nosnippet>1084</a> t.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1085 id=1085 data-nosnippet>1085</a> <span class="macro">write!</span>(f, <span class="string">"; "</span>)<span class="question-mark">?</span>; |
| <a href=#1086 id=1086 data-nosnippet>1086</a> c.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1087 id=1087 data-nosnippet>1087</a> <span class="macro">write!</span>(f, <span class="string">"]"</span>)<span class="question-mark">?</span>; |
| <a href=#1088 id=1088 data-nosnippet>1088</a> } |
| <a href=#1089 id=1089 data-nosnippet>1089</a> TyKind::Ref(l, t, m) => { |
| <a href=#1090 id=1090 data-nosnippet>1090</a> f.write_char(<span class="string">'&'</span>)<span class="question-mark">?</span>; |
| <a href=#1091 id=1091 data-nosnippet>1091</a> <span class="kw">if </span>f.render_region(l) { |
| <a href=#1092 id=1092 data-nosnippet>1092</a> l.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1093 id=1093 data-nosnippet>1093</a> f.write_char(<span class="string">' '</span>)<span class="question-mark">?</span>; |
| <a href=#1094 id=1094 data-nosnippet>1094</a> } |
| <a href=#1095 id=1095 data-nosnippet>1095</a> <span class="kw">match </span>m { |
| <a href=#1096 id=1096 data-nosnippet>1096</a> rustc_ast_ir::Mutability::Not => (), |
| <a href=#1097 id=1097 data-nosnippet>1097</a> rustc_ast_ir::Mutability::Mut => f.write_str(<span class="string">"mut "</span>)<span class="question-mark">?</span>, |
| <a href=#1098 id=1098 data-nosnippet>1098</a> } |
| <a href=#1099 id=1099 data-nosnippet>1099</a> |
| <a href=#1100 id=1100 data-nosnippet>1100</a> f.trait_bounds_need_parens = <span class="bool-val">true</span>; |
| <a href=#1101 id=1101 data-nosnippet>1101</a> t.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1102 id=1102 data-nosnippet>1102</a> f.trait_bounds_need_parens = <span class="bool-val">false</span>; |
| <a href=#1103 id=1103 data-nosnippet>1103</a> } |
| <a href=#1104 id=1104 data-nosnippet>1104</a> TyKind::RawPtr(t, m) => { |
| <a href=#1105 id=1105 data-nosnippet>1105</a> <span class="macro">write!</span>( |
| <a href=#1106 id=1106 data-nosnippet>1106</a> f, |
| <a href=#1107 id=1107 data-nosnippet>1107</a> <span class="string">"*{}"</span>, |
| <a href=#1108 id=1108 data-nosnippet>1108</a> <span class="kw">match </span>m { |
| <a href=#1109 id=1109 data-nosnippet>1109</a> rustc_ast_ir::Mutability::Not => <span class="string">"const "</span>, |
| <a href=#1110 id=1110 data-nosnippet>1110</a> rustc_ast_ir::Mutability::Mut => <span class="string">"mut "</span>, |
| <a href=#1111 id=1111 data-nosnippet>1111</a> } |
| <a href=#1112 id=1112 data-nosnippet>1112</a> )<span class="question-mark">?</span>; |
| <a href=#1113 id=1113 data-nosnippet>1113</a> |
| <a href=#1114 id=1114 data-nosnippet>1114</a> f.trait_bounds_need_parens = <span class="bool-val">true</span>; |
| <a href=#1115 id=1115 data-nosnippet>1115</a> t.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1116 id=1116 data-nosnippet>1116</a> f.trait_bounds_need_parens = <span class="bool-val">false</span>; |
| <a href=#1117 id=1117 data-nosnippet>1117</a> } |
| <a href=#1118 id=1118 data-nosnippet>1118</a> TyKind::Tuple(tys) => { |
| <a href=#1119 id=1119 data-nosnippet>1119</a> <span class="kw">if </span>tys.len() == <span class="number">1 </span>{ |
| <a href=#1120 id=1120 data-nosnippet>1120</a> <span class="macro">write!</span>(f, <span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#1121 id=1121 data-nosnippet>1121</a> tys.as_slice()[<span class="number">0</span>].hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1122 id=1122 data-nosnippet>1122</a> <span class="macro">write!</span>(f, <span class="string">",)"</span>)<span class="question-mark">?</span>; |
| <a href=#1123 id=1123 data-nosnippet>1123</a> } <span class="kw">else </span>{ |
| <a href=#1124 id=1124 data-nosnippet>1124</a> <span class="macro">write!</span>(f, <span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#1125 id=1125 data-nosnippet>1125</a> f.write_joined(tys.as_slice(), <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1126 id=1126 data-nosnippet>1126</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#1127 id=1127 data-nosnippet>1127</a> } |
| <a href=#1128 id=1128 data-nosnippet>1128</a> } |
| <a href=#1129 id=1129 data-nosnippet>1129</a> TyKind::FnPtr(sig, header) => { |
| <a href=#1130 id=1130 data-nosnippet>1130</a> <span class="kw">let </span>sig = sig.with(header); |
| <a href=#1131 id=1131 data-nosnippet>1131</a> sig.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1132 id=1132 data-nosnippet>1132</a> } |
| <a href=#1133 id=1133 data-nosnippet>1133</a> TyKind::FnDef(def, args) => { |
| <a href=#1134 id=1134 data-nosnippet>1134</a> <span class="kw">let </span>def = def.<span class="number">0</span>; |
| <a href=#1135 id=1135 data-nosnippet>1135</a> <span class="kw">let </span>sig = db.callable_item_signature(def).instantiate(interner, args); |
| <a href=#1136 id=1136 data-nosnippet>1136</a> |
| <a href=#1137 id=1137 data-nosnippet>1137</a> <span class="kw">if </span>f.display_kind.is_source_code() { |
| <a href=#1138 id=1138 data-nosnippet>1138</a> <span class="comment">// `FnDef` is anonymous and there's no surface syntax for it. Show it as a |
| <a href=#1139 id=1139 data-nosnippet>1139</a> // function pointer type. |
| <a href=#1140 id=1140 data-nosnippet>1140</a> </span><span class="kw">return </span>sig.hir_fmt(f); |
| <a href=#1141 id=1141 data-nosnippet>1141</a> } |
| <a href=#1142 id=1142 data-nosnippet>1142</a> <span class="kw">if let </span>Safety::Unsafe = sig.safety() { |
| <a href=#1143 id=1143 data-nosnippet>1143</a> <span class="macro">write!</span>(f, <span class="string">"unsafe "</span>)<span class="question-mark">?</span>; |
| <a href=#1144 id=1144 data-nosnippet>1144</a> } |
| <a href=#1145 id=1145 data-nosnippet>1145</a> <span class="kw">if </span>!<span class="macro">matches!</span>(sig.abi(), FnAbi::Rust | FnAbi::RustCall) { |
| <a href=#1146 id=1146 data-nosnippet>1146</a> f.write_str(<span class="string">"extern \""</span>)<span class="question-mark">?</span>; |
| <a href=#1147 id=1147 data-nosnippet>1147</a> f.write_str(sig.abi().as_str())<span class="question-mark">?</span>; |
| <a href=#1148 id=1148 data-nosnippet>1148</a> f.write_str(<span class="string">"\" "</span>)<span class="question-mark">?</span>; |
| <a href=#1149 id=1149 data-nosnippet>1149</a> } |
| <a href=#1150 id=1150 data-nosnippet>1150</a> |
| <a href=#1151 id=1151 data-nosnippet>1151</a> <span class="kw">let </span>sig = sig.skip_binder(); |
| <a href=#1152 id=1152 data-nosnippet>1152</a> <span class="macro">write!</span>(f, <span class="string">"fn "</span>)<span class="question-mark">?</span>; |
| <a href=#1153 id=1153 data-nosnippet>1153</a> f.start_location_link(def.into()); |
| <a href=#1154 id=1154 data-nosnippet>1154</a> <span class="kw">match </span>def { |
| <a href=#1155 id=1155 data-nosnippet>1155</a> CallableDefId::FunctionId(ff) => { |
| <a href=#1156 id=1156 data-nosnippet>1156</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, db.function_signature(ff).name.display(f.db, f.edition()))<span class="question-mark">? |
| <a href=#1157 id=1157 data-nosnippet>1157</a> </span>} |
| <a href=#1158 id=1158 data-nosnippet>1158</a> CallableDefId::StructId(s) => { |
| <a href=#1159 id=1159 data-nosnippet>1159</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, db.struct_signature(s).name.display(f.db, f.edition()))<span class="question-mark">? |
| <a href=#1160 id=1160 data-nosnippet>1160</a> </span>} |
| <a href=#1161 id=1161 data-nosnippet>1161</a> CallableDefId::EnumVariantId(e) => { |
| <a href=#1162 id=1162 data-nosnippet>1162</a> <span class="kw">let </span>loc = e.lookup(db); |
| <a href=#1163 id=1163 data-nosnippet>1163</a> <span class="macro">write!</span>( |
| <a href=#1164 id=1164 data-nosnippet>1164</a> f, |
| <a href=#1165 id=1165 data-nosnippet>1165</a> <span class="string">"{}"</span>, |
| <a href=#1166 id=1166 data-nosnippet>1166</a> loc.parent.enum_variants(db).variants[loc.index <span class="kw">as </span>usize] |
| <a href=#1167 id=1167 data-nosnippet>1167</a> .<span class="number">1 |
| <a href=#1168 id=1168 data-nosnippet>1168</a> </span>.display(db, f.edition()) |
| <a href=#1169 id=1169 data-nosnippet>1169</a> )<span class="question-mark">? |
| <a href=#1170 id=1170 data-nosnippet>1170</a> </span>} |
| <a href=#1171 id=1171 data-nosnippet>1171</a> }; |
| <a href=#1172 id=1172 data-nosnippet>1172</a> f.end_location_link(); |
| <a href=#1173 id=1173 data-nosnippet>1173</a> |
| <a href=#1174 id=1174 data-nosnippet>1174</a> <span class="kw">if </span>!args.is_empty() { |
| <a href=#1175 id=1175 data-nosnippet>1175</a> <span class="kw">let </span>generic_def_id = GenericDefId::from_callable(db, def); |
| <a href=#1176 id=1176 data-nosnippet>1176</a> <span class="kw">let </span>generics = generics(db, generic_def_id); |
| <a href=#1177 id=1177 data-nosnippet>1177</a> <span class="kw">let </span>(parent_len, self_param, type_, const_, impl_, lifetime) = |
| <a href=#1178 id=1178 data-nosnippet>1178</a> generics.provenance_split(); |
| <a href=#1179 id=1179 data-nosnippet>1179</a> <span class="kw">let </span>parameters = args.as_slice(); |
| <a href=#1180 id=1180 data-nosnippet>1180</a> <span class="macro">debug_assert_eq!</span>( |
| <a href=#1181 id=1181 data-nosnippet>1181</a> parameters.len(), |
| <a href=#1182 id=1182 data-nosnippet>1182</a> parent_len + self_param <span class="kw">as </span>usize + type_ + const_ + impl_ + lifetime |
| <a href=#1183 id=1183 data-nosnippet>1183</a> ); |
| <a href=#1184 id=1184 data-nosnippet>1184</a> <span class="comment">// We print all params except implicit impl Trait params. Still a bit weird; should we leave out parent and self? |
| <a href=#1185 id=1185 data-nosnippet>1185</a> </span><span class="kw">if </span>parameters.len() - impl_ > <span class="number">0 </span>{ |
| <a href=#1186 id=1186 data-nosnippet>1186</a> <span class="kw">let </span>params_len = parameters.len(); |
| <a href=#1187 id=1187 data-nosnippet>1187</a> <span class="comment">// `parameters` are in the order of fn's params (including impl traits), fn's lifetimes |
| <a href=#1188 id=1188 data-nosnippet>1188</a> </span><span class="kw">let </span>parameters = |
| <a href=#1189 id=1189 data-nosnippet>1189</a> generic_args_sans_defaults(f, <span class="prelude-val">Some</span>(generic_def_id), parameters); |
| <a href=#1190 id=1190 data-nosnippet>1190</a> <span class="macro">assert!</span>(params_len >= parameters.len()); |
| <a href=#1191 id=1191 data-nosnippet>1191</a> <span class="kw">let </span>defaults = params_len - parameters.len(); |
| <a href=#1192 id=1192 data-nosnippet>1192</a> |
| <a href=#1193 id=1193 data-nosnippet>1193</a> <span class="comment">// Normally, functions cannot have default parameters, but they can, |
| <a href=#1194 id=1194 data-nosnippet>1194</a> // for function-like things such as struct names or enum variants. |
| <a href=#1195 id=1195 data-nosnippet>1195</a> // The former cannot have defaults but does have parents, |
| <a href=#1196 id=1196 data-nosnippet>1196</a> // but the latter cannot have parents but can have defaults. |
| <a href=#1197 id=1197 data-nosnippet>1197</a> // |
| <a href=#1198 id=1198 data-nosnippet>1198</a> // However, it's also true that *traits* can have defaults too. |
| <a href=#1199 id=1199 data-nosnippet>1199</a> // In this case, there can be no function params. |
| <a href=#1200 id=1200 data-nosnippet>1200</a> </span><span class="kw">let </span>parent_end = <span class="kw">if </span>parent_len > <span class="number">0 </span>{ |
| <a href=#1201 id=1201 data-nosnippet>1201</a> <span class="comment">// If `parent_len` > 0, then there cannot be defaults on the function |
| <a href=#1202 id=1202 data-nosnippet>1202</a> // and all defaults must come from the parent. |
| <a href=#1203 id=1203 data-nosnippet>1203</a> </span>parent_len - defaults |
| <a href=#1204 id=1204 data-nosnippet>1204</a> } <span class="kw">else </span>{ |
| <a href=#1205 id=1205 data-nosnippet>1205</a> parent_len |
| <a href=#1206 id=1206 data-nosnippet>1206</a> }; |
| <a href=#1207 id=1207 data-nosnippet>1207</a> <span class="kw">let </span>fn_params_no_impl_or_defaults = parameters.len() - parent_end - impl_; |
| <a href=#1208 id=1208 data-nosnippet>1208</a> <span class="kw">let </span>(parent_params, fn_params) = parameters.split_at(parent_end); |
| <a href=#1209 id=1209 data-nosnippet>1209</a> |
| <a href=#1210 id=1210 data-nosnippet>1210</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#1211 id=1211 data-nosnippet>1211</a> hir_fmt_generic_arguments(f, parent_params, <span class="prelude-val">None</span>)<span class="question-mark">?</span>; |
| <a href=#1212 id=1212 data-nosnippet>1212</a> <span class="kw">if </span>!parent_params.is_empty() && !fn_params.is_empty() { |
| <a href=#1213 id=1213 data-nosnippet>1213</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1214 id=1214 data-nosnippet>1214</a> } |
| <a href=#1215 id=1215 data-nosnippet>1215</a> hir_fmt_generic_arguments( |
| <a href=#1216 id=1216 data-nosnippet>1216</a> f, |
| <a href=#1217 id=1217 data-nosnippet>1217</a> <span class="kw-2">&</span>fn_params[..fn_params_no_impl_or_defaults], |
| <a href=#1218 id=1218 data-nosnippet>1218</a> <span class="prelude-val">None</span>, |
| <a href=#1219 id=1219 data-nosnippet>1219</a> )<span class="question-mark">?</span>; |
| <a href=#1220 id=1220 data-nosnippet>1220</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1221 id=1221 data-nosnippet>1221</a> } |
| <a href=#1222 id=1222 data-nosnippet>1222</a> } |
| <a href=#1223 id=1223 data-nosnippet>1223</a> <span class="macro">write!</span>(f, <span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#1224 id=1224 data-nosnippet>1224</a> f.write_joined(sig.inputs(), <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1225 id=1225 data-nosnippet>1225</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#1226 id=1226 data-nosnippet>1226</a> <span class="kw">let </span>ret = sig.output(); |
| <a href=#1227 id=1227 data-nosnippet>1227</a> <span class="kw">if </span>!ret.is_unit() { |
| <a href=#1228 id=1228 data-nosnippet>1228</a> <span class="macro">write!</span>(f, <span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#1229 id=1229 data-nosnippet>1229</a> ret.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1230 id=1230 data-nosnippet>1230</a> } |
| <a href=#1231 id=1231 data-nosnippet>1231</a> } |
| <a href=#1232 id=1232 data-nosnippet>1232</a> TyKind::Adt(def, parameters) => { |
| <a href=#1233 id=1233 data-nosnippet>1233</a> <span class="kw">let </span>def_id = def.def_id().<span class="number">0</span>; |
| <a href=#1234 id=1234 data-nosnippet>1234</a> f.start_location_link(def_id.into()); |
| <a href=#1235 id=1235 data-nosnippet>1235</a> <span class="kw">match </span>f.display_kind { |
| <a href=#1236 id=1236 data-nosnippet>1236</a> DisplayKind::Diagnostics | DisplayKind::Test => { |
| <a href=#1237 id=1237 data-nosnippet>1237</a> <span class="kw">let </span>name = <span class="kw">match </span>def_id { |
| <a href=#1238 id=1238 data-nosnippet>1238</a> hir_def::AdtId::StructId(it) => db.struct_signature(it).name.clone(), |
| <a href=#1239 id=1239 data-nosnippet>1239</a> hir_def::AdtId::UnionId(it) => db.union_signature(it).name.clone(), |
| <a href=#1240 id=1240 data-nosnippet>1240</a> hir_def::AdtId::EnumId(it) => db.enum_signature(it).name.clone(), |
| <a href=#1241 id=1241 data-nosnippet>1241</a> }; |
| <a href=#1242 id=1242 data-nosnippet>1242</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#1243 id=1243 data-nosnippet>1243</a> } |
| <a href=#1244 id=1244 data-nosnippet>1244</a> DisplayKind::SourceCode { target_module_id: module_id, allow_opaque: <span class="kw">_ </span>} => { |
| <a href=#1245 id=1245 data-nosnippet>1245</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(path) = find_path::find_path( |
| <a href=#1246 id=1246 data-nosnippet>1246</a> db, |
| <a href=#1247 id=1247 data-nosnippet>1247</a> ItemInNs::Types(def_id.into()), |
| <a href=#1248 id=1248 data-nosnippet>1248</a> module_id, |
| <a href=#1249 id=1249 data-nosnippet>1249</a> PrefixKind::Plain, |
| <a href=#1250 id=1250 data-nosnippet>1250</a> <span class="bool-val">false</span>, |
| <a href=#1251 id=1251 data-nosnippet>1251</a> <span class="comment">// FIXME: no_std Cfg? |
| <a href=#1252 id=1252 data-nosnippet>1252</a> </span>FindPathConfig { |
| <a href=#1253 id=1253 data-nosnippet>1253</a> prefer_no_std: <span class="bool-val">false</span>, |
| <a href=#1254 id=1254 data-nosnippet>1254</a> prefer_prelude: <span class="bool-val">true</span>, |
| <a href=#1255 id=1255 data-nosnippet>1255</a> prefer_absolute: <span class="bool-val">false</span>, |
| <a href=#1256 id=1256 data-nosnippet>1256</a> allow_unstable: <span class="bool-val">true</span>, |
| <a href=#1257 id=1257 data-nosnippet>1257</a> }, |
| <a href=#1258 id=1258 data-nosnippet>1258</a> ) { |
| <a href=#1259 id=1259 data-nosnippet>1259</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, path.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#1260 id=1260 data-nosnippet>1260</a> } <span class="kw">else </span>{ |
| <a href=#1261 id=1261 data-nosnippet>1261</a> <span class="kw">return </span><span class="prelude-val">Err</span>(HirDisplayError::DisplaySourceCodeError( |
| <a href=#1262 id=1262 data-nosnippet>1262</a> DisplaySourceCodeError::PathNotFound, |
| <a href=#1263 id=1263 data-nosnippet>1263</a> )); |
| <a href=#1264 id=1264 data-nosnippet>1264</a> } |
| <a href=#1265 id=1265 data-nosnippet>1265</a> } |
| <a href=#1266 id=1266 data-nosnippet>1266</a> } |
| <a href=#1267 id=1267 data-nosnippet>1267</a> f.end_location_link(); |
| <a href=#1268 id=1268 data-nosnippet>1268</a> |
| <a href=#1269 id=1269 data-nosnippet>1269</a> hir_fmt_generics(f, parameters.as_slice(), <span class="prelude-val">Some</span>(def.def_id().<span class="number">0</span>.into()), <span class="prelude-val">None</span>)<span class="question-mark">?</span>; |
| <a href=#1270 id=1270 data-nosnippet>1270</a> } |
| <a href=#1271 id=1271 data-nosnippet>1271</a> TyKind::Alias(AliasTyKind::Projection, alias_ty) => { |
| <a href=#1272 id=1272 data-nosnippet>1272</a> write_projection(f, <span class="kw-2">&</span>alias_ty, trait_bounds_need_parens)<span class="question-mark">? |
| <a href=#1273 id=1273 data-nosnippet>1273</a> </span>} |
| <a href=#1274 id=1274 data-nosnippet>1274</a> TyKind::Foreign(alias) => { |
| <a href=#1275 id=1275 data-nosnippet>1275</a> <span class="kw">let </span>type_alias = db.type_alias_signature(alias.<span class="number">0</span>); |
| <a href=#1276 id=1276 data-nosnippet>1276</a> f.start_location_link(alias.<span class="number">0</span>.into()); |
| <a href=#1277 id=1277 data-nosnippet>1277</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, type_alias.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#1278 id=1278 data-nosnippet>1278</a> f.end_location_link(); |
| <a href=#1279 id=1279 data-nosnippet>1279</a> } |
| <a href=#1280 id=1280 data-nosnippet>1280</a> TyKind::Alias(AliasTyKind::Opaque, alias_ty) => { |
| <a href=#1281 id=1281 data-nosnippet>1281</a> <span class="kw">let </span>opaque_ty_id = <span class="kw">match </span>alias_ty.def_id { |
| <a href=#1282 id=1282 data-nosnippet>1282</a> SolverDefId::InternedOpaqueTyId(id) => id, |
| <a href=#1283 id=1283 data-nosnippet>1283</a> <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| <a href=#1284 id=1284 data-nosnippet>1284</a> }; |
| <a href=#1285 id=1285 data-nosnippet>1285</a> <span class="kw">if </span>!f.display_kind.allows_opaque() { |
| <a href=#1286 id=1286 data-nosnippet>1286</a> <span class="kw">return </span><span class="prelude-val">Err</span>(HirDisplayError::DisplaySourceCodeError( |
| <a href=#1287 id=1287 data-nosnippet>1287</a> DisplaySourceCodeError::OpaqueType, |
| <a href=#1288 id=1288 data-nosnippet>1288</a> )); |
| <a href=#1289 id=1289 data-nosnippet>1289</a> } |
| <a href=#1290 id=1290 data-nosnippet>1290</a> <span class="kw">let </span>impl_trait_id = db.lookup_intern_impl_trait_id(opaque_ty_id); |
| <a href=#1291 id=1291 data-nosnippet>1291</a> <span class="kw">let </span>data = impl_trait_id.predicates(db); |
| <a href=#1292 id=1292 data-nosnippet>1292</a> <span class="kw">let </span>bounds = data |
| <a href=#1293 id=1293 data-nosnippet>1293</a> .iter_instantiated_copied(interner, alias_ty.args.as_slice()) |
| <a href=#1294 id=1294 data-nosnippet>1294</a> .collect::<Vec<<span class="kw">_</span>>>(); |
| <a href=#1295 id=1295 data-nosnippet>1295</a> <span class="kw">let </span>krate = <span class="kw">match </span>impl_trait_id { |
| <a href=#1296 id=1296 data-nosnippet>1296</a> ImplTraitId::ReturnTypeImplTrait(func, <span class="kw">_</span>) => { |
| <a href=#1297 id=1297 data-nosnippet>1297</a> func.krate(db) |
| <a href=#1298 id=1298 data-nosnippet>1298</a> <span class="comment">// FIXME: it would maybe be good to distinguish this from the alias type (when debug printing), and to show the substitution |
| <a href=#1299 id=1299 data-nosnippet>1299</a> </span>} |
| <a href=#1300 id=1300 data-nosnippet>1300</a> ImplTraitId::TypeAliasImplTrait(alias, <span class="kw">_</span>) => alias.krate(db), |
| <a href=#1301 id=1301 data-nosnippet>1301</a> }; |
| <a href=#1302 id=1302 data-nosnippet>1302</a> write_bounds_like_dyn_trait_with_prefix( |
| <a href=#1303 id=1303 data-nosnippet>1303</a> f, |
| <a href=#1304 id=1304 data-nosnippet>1304</a> <span class="string">"impl"</span>, |
| <a href=#1305 id=1305 data-nosnippet>1305</a> Either::Left(<span class="kw-2">*</span><span class="self">self</span>), |
| <a href=#1306 id=1306 data-nosnippet>1306</a> <span class="kw-2">&</span>bounds, |
| <a href=#1307 id=1307 data-nosnippet>1307</a> SizedByDefault::Sized { anchor: krate }, |
| <a href=#1308 id=1308 data-nosnippet>1308</a> trait_bounds_need_parens, |
| <a href=#1309 id=1309 data-nosnippet>1309</a> )<span class="question-mark">?</span>; |
| <a href=#1310 id=1310 data-nosnippet>1310</a> } |
| <a href=#1311 id=1311 data-nosnippet>1311</a> TyKind::Closure(id, substs) => { |
| <a href=#1312 id=1312 data-nosnippet>1312</a> <span class="kw">let </span>id = id.<span class="number">0</span>; |
| <a href=#1313 id=1313 data-nosnippet>1313</a> <span class="kw">if </span>f.display_kind.is_source_code() { |
| <a href=#1314 id=1314 data-nosnippet>1314</a> <span class="kw">if </span>!f.display_kind.allows_opaque() { |
| <a href=#1315 id=1315 data-nosnippet>1315</a> <span class="kw">return </span><span class="prelude-val">Err</span>(HirDisplayError::DisplaySourceCodeError( |
| <a href=#1316 id=1316 data-nosnippet>1316</a> DisplaySourceCodeError::OpaqueType, |
| <a href=#1317 id=1317 data-nosnippet>1317</a> )); |
| <a href=#1318 id=1318 data-nosnippet>1318</a> } <span class="kw">else if </span>f.<span class="macro">closure_style !</span>= ClosureStyle::ImplFn { |
| <a href=#1319 id=1319 data-nosnippet>1319</a> <span class="macro">never!</span>(<span class="string">"Only `impl Fn` is valid for displaying closures in source code"</span>); |
| <a href=#1320 id=1320 data-nosnippet>1320</a> } |
| <a href=#1321 id=1321 data-nosnippet>1321</a> } |
| <a href=#1322 id=1322 data-nosnippet>1322</a> <span class="kw">match </span>f.closure_style { |
| <a href=#1323 id=1323 data-nosnippet>1323</a> ClosureStyle::Hide => <span class="kw">return </span><span class="macro">write!</span>(f, <span class="string">"{TYPE_HINT_TRUNCATION}"</span>), |
| <a href=#1324 id=1324 data-nosnippet>1324</a> ClosureStyle::ClosureWithId => { |
| <a href=#1325 id=1325 data-nosnippet>1325</a> <span class="kw">return </span><span class="macro">write!</span>( |
| <a href=#1326 id=1326 data-nosnippet>1326</a> f, |
| <a href=#1327 id=1327 data-nosnippet>1327</a> <span class="string">"{{closure#{:?}}}"</span>, |
| <a href=#1328 id=1328 data-nosnippet>1328</a> salsa::plumbing::AsId::as_id(<span class="kw-2">&</span>id).index() |
| <a href=#1329 id=1329 data-nosnippet>1329</a> ); |
| <a href=#1330 id=1330 data-nosnippet>1330</a> } |
| <a href=#1331 id=1331 data-nosnippet>1331</a> ClosureStyle::ClosureWithSubst => { |
| <a href=#1332 id=1332 data-nosnippet>1332</a> <span class="macro">write!</span>(f, <span class="string">"{{closure#{:?}}}"</span>, salsa::plumbing::AsId::as_id(<span class="kw-2">&</span>id).index())<span class="question-mark">?</span>; |
| <a href=#1333 id=1333 data-nosnippet>1333</a> <span class="kw">return </span>hir_fmt_generics(f, substs.as_slice(), <span class="prelude-val">None</span>, <span class="prelude-val">None</span>); |
| <a href=#1334 id=1334 data-nosnippet>1334</a> } |
| <a href=#1335 id=1335 data-nosnippet>1335</a> <span class="kw">_ </span>=> (), |
| <a href=#1336 id=1336 data-nosnippet>1336</a> } |
| <a href=#1337 id=1337 data-nosnippet>1337</a> <span class="kw">let </span>sig = interner.signature_unclosure(substs.as_closure().sig(), Safety::Safe); |
| <a href=#1338 id=1338 data-nosnippet>1338</a> <span class="kw">let </span>sig = sig.skip_binder(); |
| <a href=#1339 id=1339 data-nosnippet>1339</a> <span class="kw">let </span>InternedClosure(def, <span class="kw">_</span>) = db.lookup_intern_closure(id); |
| <a href=#1340 id=1340 data-nosnippet>1340</a> <span class="kw">let </span>infer = InferenceResult::for_body(db, def); |
| <a href=#1341 id=1341 data-nosnippet>1341</a> <span class="kw">let </span>(<span class="kw">_</span>, kind) = infer.closure_info(id); |
| <a href=#1342 id=1342 data-nosnippet>1342</a> <span class="kw">match </span>f.closure_style { |
| <a href=#1343 id=1343 data-nosnippet>1343</a> ClosureStyle::ImplFn => <span class="macro">write!</span>(f, <span class="string">"impl {kind:?}("</span>)<span class="question-mark">?</span>, |
| <a href=#1344 id=1344 data-nosnippet>1344</a> ClosureStyle::RANotation => <span class="macro">write!</span>(f, <span class="string">"|"</span>)<span class="question-mark">?</span>, |
| <a href=#1345 id=1345 data-nosnippet>1345</a> <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| <a href=#1346 id=1346 data-nosnippet>1346</a> } |
| <a href=#1347 id=1347 data-nosnippet>1347</a> <span class="kw">if </span>sig.inputs().is_empty() { |
| <a href=#1348 id=1348 data-nosnippet>1348</a> } <span class="kw">else if </span>f.should_truncate() { |
| <a href=#1349 id=1349 data-nosnippet>1349</a> <span class="macro">write!</span>(f, <span class="string">"{TYPE_HINT_TRUNCATION}"</span>)<span class="question-mark">?</span>; |
| <a href=#1350 id=1350 data-nosnippet>1350</a> } <span class="kw">else </span>{ |
| <a href=#1351 id=1351 data-nosnippet>1351</a> f.write_joined(sig.inputs(), <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1352 id=1352 data-nosnippet>1352</a> }; |
| <a href=#1353 id=1353 data-nosnippet>1353</a> <span class="kw">match </span>f.closure_style { |
| <a href=#1354 id=1354 data-nosnippet>1354</a> ClosureStyle::ImplFn => <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>, |
| <a href=#1355 id=1355 data-nosnippet>1355</a> ClosureStyle::RANotation => <span class="macro">write!</span>(f, <span class="string">"|"</span>)<span class="question-mark">?</span>, |
| <a href=#1356 id=1356 data-nosnippet>1356</a> <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| <a href=#1357 id=1357 data-nosnippet>1357</a> } |
| <a href=#1358 id=1358 data-nosnippet>1358</a> <span class="kw">if </span>f.closure_style == ClosureStyle::RANotation || !sig.output().is_unit() { |
| <a href=#1359 id=1359 data-nosnippet>1359</a> <span class="macro">write!</span>(f, <span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#1360 id=1360 data-nosnippet>1360</a> sig.output().hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1361 id=1361 data-nosnippet>1361</a> } |
| <a href=#1362 id=1362 data-nosnippet>1362</a> } |
| <a href=#1363 id=1363 data-nosnippet>1363</a> TyKind::CoroutineClosure(id, args) => { |
| <a href=#1364 id=1364 data-nosnippet>1364</a> <span class="kw">let </span>id = id.<span class="number">0</span>; |
| <a href=#1365 id=1365 data-nosnippet>1365</a> <span class="kw">if </span>f.display_kind.is_source_code() { |
| <a href=#1366 id=1366 data-nosnippet>1366</a> <span class="kw">if </span>!f.display_kind.allows_opaque() { |
| <a href=#1367 id=1367 data-nosnippet>1367</a> <span class="kw">return </span><span class="prelude-val">Err</span>(HirDisplayError::DisplaySourceCodeError( |
| <a href=#1368 id=1368 data-nosnippet>1368</a> DisplaySourceCodeError::OpaqueType, |
| <a href=#1369 id=1369 data-nosnippet>1369</a> )); |
| <a href=#1370 id=1370 data-nosnippet>1370</a> } <span class="kw">else if </span>f.<span class="macro">closure_style !</span>= ClosureStyle::ImplFn { |
| <a href=#1371 id=1371 data-nosnippet>1371</a> <span class="macro">never!</span>(<span class="string">"Only `impl Fn` is valid for displaying closures in source code"</span>); |
| <a href=#1372 id=1372 data-nosnippet>1372</a> } |
| <a href=#1373 id=1373 data-nosnippet>1373</a> } |
| <a href=#1374 id=1374 data-nosnippet>1374</a> <span class="kw">match </span>f.closure_style { |
| <a href=#1375 id=1375 data-nosnippet>1375</a> ClosureStyle::Hide => <span class="kw">return </span><span class="macro">write!</span>(f, <span class="string">"{TYPE_HINT_TRUNCATION}"</span>), |
| <a href=#1376 id=1376 data-nosnippet>1376</a> ClosureStyle::ClosureWithId => { |
| <a href=#1377 id=1377 data-nosnippet>1377</a> <span class="kw">return </span><span class="macro">write!</span>( |
| <a href=#1378 id=1378 data-nosnippet>1378</a> f, |
| <a href=#1379 id=1379 data-nosnippet>1379</a> <span class="string">"{{async closure#{:?}}}"</span>, |
| <a href=#1380 id=1380 data-nosnippet>1380</a> salsa::plumbing::AsId::as_id(<span class="kw-2">&</span>id).index() |
| <a href=#1381 id=1381 data-nosnippet>1381</a> ); |
| <a href=#1382 id=1382 data-nosnippet>1382</a> } |
| <a href=#1383 id=1383 data-nosnippet>1383</a> ClosureStyle::ClosureWithSubst => { |
| <a href=#1384 id=1384 data-nosnippet>1384</a> <span class="macro">write!</span>( |
| <a href=#1385 id=1385 data-nosnippet>1385</a> f, |
| <a href=#1386 id=1386 data-nosnippet>1386</a> <span class="string">"{{async closure#{:?}}}"</span>, |
| <a href=#1387 id=1387 data-nosnippet>1387</a> salsa::plumbing::AsId::as_id(<span class="kw-2">&</span>id).index() |
| <a href=#1388 id=1388 data-nosnippet>1388</a> )<span class="question-mark">?</span>; |
| <a href=#1389 id=1389 data-nosnippet>1389</a> <span class="kw">return </span>hir_fmt_generics(f, args.as_slice(), <span class="prelude-val">None</span>, <span class="prelude-val">None</span>); |
| <a href=#1390 id=1390 data-nosnippet>1390</a> } |
| <a href=#1391 id=1391 data-nosnippet>1391</a> <span class="kw">_ </span>=> (), |
| <a href=#1392 id=1392 data-nosnippet>1392</a> } |
| <a href=#1393 id=1393 data-nosnippet>1393</a> <span class="kw">let </span>CoroutineClosureArgsParts { closure_kind_ty, signature_parts_ty, .. } = |
| <a href=#1394 id=1394 data-nosnippet>1394</a> args.split_coroutine_closure_args(); |
| <a href=#1395 id=1395 data-nosnippet>1395</a> <span class="kw">let </span>kind = closure_kind_ty.to_opt_closure_kind().unwrap(); |
| <a href=#1396 id=1396 data-nosnippet>1396</a> <span class="kw">let </span>kind = <span class="kw">match </span>kind { |
| <a href=#1397 id=1397 data-nosnippet>1397</a> rustc_type_ir::ClosureKind::Fn => <span class="string">"AsyncFn"</span>, |
| <a href=#1398 id=1398 data-nosnippet>1398</a> rustc_type_ir::ClosureKind::FnMut => <span class="string">"AsyncFnMut"</span>, |
| <a href=#1399 id=1399 data-nosnippet>1399</a> rustc_type_ir::ClosureKind::FnOnce => <span class="string">"AsyncFnOnce"</span>, |
| <a href=#1400 id=1400 data-nosnippet>1400</a> }; |
| <a href=#1401 id=1401 data-nosnippet>1401</a> <span class="kw">let </span>TyKind::FnPtr(coroutine_sig, <span class="kw">_</span>) = signature_parts_ty.kind() <span class="kw">else </span>{ |
| <a href=#1402 id=1402 data-nosnippet>1402</a> <span class="macro">unreachable!</span>(<span class="string">"invalid coroutine closure signature"</span>); |
| <a href=#1403 id=1403 data-nosnippet>1403</a> }; |
| <a href=#1404 id=1404 data-nosnippet>1404</a> <span class="kw">let </span>coroutine_sig = coroutine_sig.skip_binder(); |
| <a href=#1405 id=1405 data-nosnippet>1405</a> <span class="kw">let </span>coroutine_inputs = coroutine_sig.inputs(); |
| <a href=#1406 id=1406 data-nosnippet>1406</a> <span class="kw">let </span>TyKind::Tuple(coroutine_inputs) = coroutine_inputs[<span class="number">1</span>].kind() <span class="kw">else </span>{ |
| <a href=#1407 id=1407 data-nosnippet>1407</a> <span class="macro">unreachable!</span>(<span class="string">"invalid coroutine closure signature"</span>); |
| <a href=#1408 id=1408 data-nosnippet>1408</a> }; |
| <a href=#1409 id=1409 data-nosnippet>1409</a> <span class="kw">let </span>TyKind::Tuple(coroutine_output) = coroutine_sig.output().kind() <span class="kw">else </span>{ |
| <a href=#1410 id=1410 data-nosnippet>1410</a> <span class="macro">unreachable!</span>(<span class="string">"invalid coroutine closure signature"</span>); |
| <a href=#1411 id=1411 data-nosnippet>1411</a> }; |
| <a href=#1412 id=1412 data-nosnippet>1412</a> <span class="kw">let </span>coroutine_output = coroutine_output.as_slice()[<span class="number">1</span>]; |
| <a href=#1413 id=1413 data-nosnippet>1413</a> <span class="kw">match </span>f.closure_style { |
| <a href=#1414 id=1414 data-nosnippet>1414</a> ClosureStyle::ImplFn => <span class="macro">write!</span>(f, <span class="string">"impl {kind}("</span>)<span class="question-mark">?</span>, |
| <a href=#1415 id=1415 data-nosnippet>1415</a> ClosureStyle::RANotation => <span class="macro">write!</span>(f, <span class="string">"async |"</span>)<span class="question-mark">?</span>, |
| <a href=#1416 id=1416 data-nosnippet>1416</a> <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| <a href=#1417 id=1417 data-nosnippet>1417</a> } |
| <a href=#1418 id=1418 data-nosnippet>1418</a> <span class="kw">if </span>coroutine_inputs.is_empty() { |
| <a href=#1419 id=1419 data-nosnippet>1419</a> } <span class="kw">else if </span>f.should_truncate() { |
| <a href=#1420 id=1420 data-nosnippet>1420</a> <span class="macro">write!</span>(f, <span class="string">"{TYPE_HINT_TRUNCATION}"</span>)<span class="question-mark">?</span>; |
| <a href=#1421 id=1421 data-nosnippet>1421</a> } <span class="kw">else </span>{ |
| <a href=#1422 id=1422 data-nosnippet>1422</a> f.write_joined(coroutine_inputs, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1423 id=1423 data-nosnippet>1423</a> }; |
| <a href=#1424 id=1424 data-nosnippet>1424</a> <span class="kw">match </span>f.closure_style { |
| <a href=#1425 id=1425 data-nosnippet>1425</a> ClosureStyle::ImplFn => <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>, |
| <a href=#1426 id=1426 data-nosnippet>1426</a> ClosureStyle::RANotation => <span class="macro">write!</span>(f, <span class="string">"|"</span>)<span class="question-mark">?</span>, |
| <a href=#1427 id=1427 data-nosnippet>1427</a> <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| <a href=#1428 id=1428 data-nosnippet>1428</a> } |
| <a href=#1429 id=1429 data-nosnippet>1429</a> <span class="kw">if </span>f.closure_style == ClosureStyle::RANotation || !coroutine_output.is_unit() { |
| <a href=#1430 id=1430 data-nosnippet>1430</a> <span class="macro">write!</span>(f, <span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#1431 id=1431 data-nosnippet>1431</a> coroutine_output.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1432 id=1432 data-nosnippet>1432</a> } |
| <a href=#1433 id=1433 data-nosnippet>1433</a> } |
| <a href=#1434 id=1434 data-nosnippet>1434</a> TyKind::Placeholder(<span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"{{placeholder}}"</span>)<span class="question-mark">?</span>, |
| <a href=#1435 id=1435 data-nosnippet>1435</a> TyKind::Param(param) => { |
| <a href=#1436 id=1436 data-nosnippet>1436</a> <span class="comment">// FIXME: We should not access `param.id`, it should be removed, and we should know the |
| <a href=#1437 id=1437 data-nosnippet>1437</a> // parent from the formatted type. |
| <a href=#1438 id=1438 data-nosnippet>1438</a> </span><span class="kw">let </span>generics = generics(db, param.id.parent()); |
| <a href=#1439 id=1439 data-nosnippet>1439</a> <span class="kw">let </span>param_data = <span class="kw-2">&</span>generics[param.id.local_id()]; |
| <a href=#1440 id=1440 data-nosnippet>1440</a> <span class="kw">match </span>param_data { |
| <a href=#1441 id=1441 data-nosnippet>1441</a> TypeOrConstParamData::TypeParamData(p) => <span class="kw">match </span>p.provenance { |
| <a href=#1442 id=1442 data-nosnippet>1442</a> TypeParamProvenance::TypeParamList | TypeParamProvenance::TraitSelf => { |
| <a href=#1443 id=1443 data-nosnippet>1443</a> f.start_location_link_generic(param.id.into()); |
| <a href=#1444 id=1444 data-nosnippet>1444</a> <span class="macro">write!</span>( |
| <a href=#1445 id=1445 data-nosnippet>1445</a> f, |
| <a href=#1446 id=1446 data-nosnippet>1446</a> <span class="string">"{}"</span>, |
| <a href=#1447 id=1447 data-nosnippet>1447</a> p.name |
| <a href=#1448 id=1448 data-nosnippet>1448</a> .clone() |
| <a href=#1449 id=1449 data-nosnippet>1449</a> .unwrap_or_else(Name::missing) |
| <a href=#1450 id=1450 data-nosnippet>1450</a> .display(f.db, f.edition()) |
| <a href=#1451 id=1451 data-nosnippet>1451</a> )<span class="question-mark">?</span>; |
| <a href=#1452 id=1452 data-nosnippet>1452</a> f.end_location_link(); |
| <a href=#1453 id=1453 data-nosnippet>1453</a> } |
| <a href=#1454 id=1454 data-nosnippet>1454</a> TypeParamProvenance::ArgumentImplTrait => { |
| <a href=#1455 id=1455 data-nosnippet>1455</a> <span class="kw">let </span>bounds = GenericPredicates::query_all(f.db, param.id.parent()) |
| <a href=#1456 id=1456 data-nosnippet>1456</a> .iter_identity_copied() |
| <a href=#1457 id=1457 data-nosnippet>1457</a> .filter(|wc| <span class="kw">match </span>wc.kind().skip_binder() { |
| <a href=#1458 id=1458 data-nosnippet>1458</a> ClauseKind::Trait(tr) => tr.self_ty() == <span class="kw-2">*</span><span class="self">self</span>, |
| <a href=#1459 id=1459 data-nosnippet>1459</a> ClauseKind::Projection(proj) => proj.self_ty() == <span class="kw-2">*</span><span class="self">self</span>, |
| <a href=#1460 id=1460 data-nosnippet>1460</a> ClauseKind::TypeOutlives(to) => to.<span class="number">0 </span>== <span class="kw-2">*</span><span class="self">self</span>, |
| <a href=#1461 id=1461 data-nosnippet>1461</a> <span class="kw">_ </span>=> <span class="bool-val">false</span>, |
| <a href=#1462 id=1462 data-nosnippet>1462</a> }) |
| <a href=#1463 id=1463 data-nosnippet>1463</a> .collect::<Vec<<span class="kw">_</span>>>(); |
| <a href=#1464 id=1464 data-nosnippet>1464</a> <span class="kw">let </span>krate = param.id.parent().module(db).krate(db); |
| <a href=#1465 id=1465 data-nosnippet>1465</a> write_bounds_like_dyn_trait_with_prefix( |
| <a href=#1466 id=1466 data-nosnippet>1466</a> f, |
| <a href=#1467 id=1467 data-nosnippet>1467</a> <span class="string">"impl"</span>, |
| <a href=#1468 id=1468 data-nosnippet>1468</a> Either::Left(<span class="kw-2">*</span><span class="self">self</span>), |
| <a href=#1469 id=1469 data-nosnippet>1469</a> <span class="kw-2">&</span>bounds, |
| <a href=#1470 id=1470 data-nosnippet>1470</a> SizedByDefault::Sized { anchor: krate }, |
| <a href=#1471 id=1471 data-nosnippet>1471</a> trait_bounds_need_parens, |
| <a href=#1472 id=1472 data-nosnippet>1472</a> )<span class="question-mark">?</span>; |
| <a href=#1473 id=1473 data-nosnippet>1473</a> } |
| <a href=#1474 id=1474 data-nosnippet>1474</a> }, |
| <a href=#1475 id=1475 data-nosnippet>1475</a> TypeOrConstParamData::ConstParamData(p) => { |
| <a href=#1476 id=1476 data-nosnippet>1476</a> f.start_location_link_generic(param.id.into()); |
| <a href=#1477 id=1477 data-nosnippet>1477</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=#1478 id=1478 data-nosnippet>1478</a> f.end_location_link(); |
| <a href=#1479 id=1479 data-nosnippet>1479</a> } |
| <a href=#1480 id=1480 data-nosnippet>1480</a> } |
| <a href=#1481 id=1481 data-nosnippet>1481</a> } |
| <a href=#1482 id=1482 data-nosnippet>1482</a> TyKind::Bound(BoundVarIndexKind::Bound(debruijn), ty) => { |
| <a href=#1483 id=1483 data-nosnippet>1483</a> <span class="macro">write!</span>(f, <span class="string">"?{}.{}"</span>, debruijn.as_usize(), ty.var.as_usize())<span class="question-mark">? |
| <a href=#1484 id=1484 data-nosnippet>1484</a> </span>} |
| <a href=#1485 id=1485 data-nosnippet>1485</a> TyKind::Bound(BoundVarIndexKind::Canonical, ty) => { |
| <a href=#1486 id=1486 data-nosnippet>1486</a> <span class="macro">write!</span>(f, <span class="string">"?c.{}"</span>, ty.var.as_usize())<span class="question-mark">? |
| <a href=#1487 id=1487 data-nosnippet>1487</a> </span>} |
| <a href=#1488 id=1488 data-nosnippet>1488</a> TyKind::Dynamic(bounds, region) => { |
| <a href=#1489 id=1489 data-nosnippet>1489</a> <span class="comment">// We want to put auto traits after principal traits, regardless of their written order. |
| <a href=#1490 id=1490 data-nosnippet>1490</a> </span><span class="kw">let </span><span class="kw-2">mut </span>bounds_to_display = SmallVec::<[<span class="kw">_</span>; <span class="number">4</span>]>::new(); |
| <a href=#1491 id=1491 data-nosnippet>1491</a> <span class="kw">let </span><span class="kw-2">mut </span>auto_trait_bounds = SmallVec::<[<span class="kw">_</span>; <span class="number">4</span>]>::new(); |
| <a href=#1492 id=1492 data-nosnippet>1492</a> <span class="kw">for </span>bound <span class="kw">in </span>bounds.iter() { |
| <a href=#1493 id=1493 data-nosnippet>1493</a> <span class="kw">let </span>clause = bound.with_self_ty(interner, <span class="kw-2">*</span><span class="self">self</span>); |
| <a href=#1494 id=1494 data-nosnippet>1494</a> <span class="kw">match </span>bound.skip_binder() { |
| <a href=#1495 id=1495 data-nosnippet>1495</a> ExistentialPredicate::Trait(<span class="kw">_</span>) | ExistentialPredicate::Projection(<span class="kw">_</span>) => { |
| <a href=#1496 id=1496 data-nosnippet>1496</a> bounds_to_display.push(clause); |
| <a href=#1497 id=1497 data-nosnippet>1497</a> } |
| <a href=#1498 id=1498 data-nosnippet>1498</a> ExistentialPredicate::AutoTrait(<span class="kw">_</span>) => auto_trait_bounds.push(clause), |
| <a href=#1499 id=1499 data-nosnippet>1499</a> } |
| <a href=#1500 id=1500 data-nosnippet>1500</a> } |
| <a href=#1501 id=1501 data-nosnippet>1501</a> bounds_to_display.append(<span class="kw-2">&mut </span>auto_trait_bounds); |
| <a href=#1502 id=1502 data-nosnippet>1502</a> |
| <a href=#1503 id=1503 data-nosnippet>1503</a> <span class="kw">if </span>f.render_region(region) { |
| <a href=#1504 id=1504 data-nosnippet>1504</a> bounds_to_display |
| <a href=#1505 id=1505 data-nosnippet>1505</a> .push(rustc_type_ir::OutlivesPredicate(<span class="kw-2">*</span><span class="self">self</span>, region).upcast(interner)); |
| <a href=#1506 id=1506 data-nosnippet>1506</a> } |
| <a href=#1507 id=1507 data-nosnippet>1507</a> |
| <a href=#1508 id=1508 data-nosnippet>1508</a> write_bounds_like_dyn_trait_with_prefix( |
| <a href=#1509 id=1509 data-nosnippet>1509</a> f, |
| <a href=#1510 id=1510 data-nosnippet>1510</a> <span class="string">"dyn"</span>, |
| <a href=#1511 id=1511 data-nosnippet>1511</a> Either::Left(<span class="kw-2">*</span><span class="self">self</span>), |
| <a href=#1512 id=1512 data-nosnippet>1512</a> <span class="kw-2">&</span>bounds_to_display, |
| <a href=#1513 id=1513 data-nosnippet>1513</a> SizedByDefault::NotSized, |
| <a href=#1514 id=1514 data-nosnippet>1514</a> trait_bounds_need_parens, |
| <a href=#1515 id=1515 data-nosnippet>1515</a> )<span class="question-mark">?</span>; |
| <a href=#1516 id=1516 data-nosnippet>1516</a> } |
| <a href=#1517 id=1517 data-nosnippet>1517</a> TyKind::Error(<span class="kw">_</span>) => { |
| <a href=#1518 id=1518 data-nosnippet>1518</a> <span class="kw">if </span>f.display_kind.is_source_code() { |
| <a href=#1519 id=1519 data-nosnippet>1519</a> f.write_char(<span class="string">'_'</span>)<span class="question-mark">?</span>; |
| <a href=#1520 id=1520 data-nosnippet>1520</a> } <span class="kw">else </span>{ |
| <a href=#1521 id=1521 data-nosnippet>1521</a> <span class="macro">write!</span>(f, <span class="string">"{{unknown}}"</span>)<span class="question-mark">?</span>; |
| <a href=#1522 id=1522 data-nosnippet>1522</a> } |
| <a href=#1523 id=1523 data-nosnippet>1523</a> } |
| <a href=#1524 id=1524 data-nosnippet>1524</a> TyKind::Infer(..) => <span class="macro">write!</span>(f, <span class="string">"_"</span>)<span class="question-mark">?</span>, |
| <a href=#1525 id=1525 data-nosnippet>1525</a> TyKind::Coroutine(coroutine_id, subst) => { |
| <a href=#1526 id=1526 data-nosnippet>1526</a> <span class="kw">let </span>InternedCoroutine(owner, expr_id) = coroutine_id.<span class="number">0</span>.loc(db); |
| <a href=#1527 id=1527 data-nosnippet>1527</a> <span class="kw">let </span>CoroutineArgsParts { resume_ty, yield_ty, return_ty, .. } = |
| <a href=#1528 id=1528 data-nosnippet>1528</a> subst.split_coroutine_args(); |
| <a href=#1529 id=1529 data-nosnippet>1529</a> <span class="kw">let </span>body = db.body(owner); |
| <a href=#1530 id=1530 data-nosnippet>1530</a> <span class="kw">let </span>expr = <span class="kw-2">&</span>body[expr_id]; |
| <a href=#1531 id=1531 data-nosnippet>1531</a> <span class="kw">match </span>expr { |
| <a href=#1532 id=1532 data-nosnippet>1532</a> hir_def::hir::Expr::Closure { |
| <a href=#1533 id=1533 data-nosnippet>1533</a> closure_kind: hir_def::hir::ClosureKind::Async, |
| <a href=#1534 id=1534 data-nosnippet>1534</a> .. |
| <a href=#1535 id=1535 data-nosnippet>1535</a> } |
| <a href=#1536 id=1536 data-nosnippet>1536</a> | hir_def::hir::Expr::Async { .. } => { |
| <a href=#1537 id=1537 data-nosnippet>1537</a> <span class="kw">let </span>future_trait = f.lang_items().Future; |
| <a href=#1538 id=1538 data-nosnippet>1538</a> <span class="kw">let </span>output = future_trait.and_then(|t| { |
| <a href=#1539 id=1539 data-nosnippet>1539</a> t.trait_items(db) |
| <a href=#1540 id=1540 data-nosnippet>1540</a> .associated_type_by_name(<span class="kw-2">&</span>Name::new_symbol_root(sym::Output)) |
| <a href=#1541 id=1541 data-nosnippet>1541</a> }); |
| <a href=#1542 id=1542 data-nosnippet>1542</a> <span class="macro">write!</span>(f, <span class="string">"impl "</span>)<span class="question-mark">?</span>; |
| <a href=#1543 id=1543 data-nosnippet>1543</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(t) = future_trait { |
| <a href=#1544 id=1544 data-nosnippet>1544</a> f.start_location_link(t.into()); |
| <a href=#1545 id=1545 data-nosnippet>1545</a> } |
| <a href=#1546 id=1546 data-nosnippet>1546</a> <span class="macro">write!</span>(f, <span class="string">"Future"</span>)<span class="question-mark">?</span>; |
| <a href=#1547 id=1547 data-nosnippet>1547</a> <span class="kw">if </span>future_trait.is_some() { |
| <a href=#1548 id=1548 data-nosnippet>1548</a> f.end_location_link(); |
| <a href=#1549 id=1549 data-nosnippet>1549</a> } |
| <a href=#1550 id=1550 data-nosnippet>1550</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#1551 id=1551 data-nosnippet>1551</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(t) = output { |
| <a href=#1552 id=1552 data-nosnippet>1552</a> f.start_location_link(t.into()); |
| <a href=#1553 id=1553 data-nosnippet>1553</a> } |
| <a href=#1554 id=1554 data-nosnippet>1554</a> <span class="macro">write!</span>(f, <span class="string">"Output"</span>)<span class="question-mark">?</span>; |
| <a href=#1555 id=1555 data-nosnippet>1555</a> <span class="kw">if </span>output.is_some() { |
| <a href=#1556 id=1556 data-nosnippet>1556</a> f.end_location_link(); |
| <a href=#1557 id=1557 data-nosnippet>1557</a> } |
| <a href=#1558 id=1558 data-nosnippet>1558</a> <span class="macro">write!</span>(f, <span class="string">" = "</span>)<span class="question-mark">?</span>; |
| <a href=#1559 id=1559 data-nosnippet>1559</a> return_ty.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1560 id=1560 data-nosnippet>1560</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1561 id=1561 data-nosnippet>1561</a> } |
| <a href=#1562 id=1562 data-nosnippet>1562</a> hir_def::hir::Expr::Closure { |
| <a href=#1563 id=1563 data-nosnippet>1563</a> closure_kind: hir_def::hir::ClosureKind::Coroutine(..), |
| <a href=#1564 id=1564 data-nosnippet>1564</a> .. |
| <a href=#1565 id=1565 data-nosnippet>1565</a> } => { |
| <a href=#1566 id=1566 data-nosnippet>1566</a> <span class="kw">if </span>f.display_kind.is_source_code() { |
| <a href=#1567 id=1567 data-nosnippet>1567</a> <span class="kw">return </span><span class="prelude-val">Err</span>(HirDisplayError::DisplaySourceCodeError( |
| <a href=#1568 id=1568 data-nosnippet>1568</a> DisplaySourceCodeError::Coroutine, |
| <a href=#1569 id=1569 data-nosnippet>1569</a> )); |
| <a href=#1570 id=1570 data-nosnippet>1570</a> } |
| <a href=#1571 id=1571 data-nosnippet>1571</a> <span class="macro">write!</span>(f, <span class="string">"|"</span>)<span class="question-mark">?</span>; |
| <a href=#1572 id=1572 data-nosnippet>1572</a> resume_ty.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1573 id=1573 data-nosnippet>1573</a> <span class="macro">write!</span>(f, <span class="string">"|"</span>)<span class="question-mark">?</span>; |
| <a href=#1574 id=1574 data-nosnippet>1574</a> |
| <a href=#1575 id=1575 data-nosnippet>1575</a> <span class="macro">write!</span>(f, <span class="string">" yields "</span>)<span class="question-mark">?</span>; |
| <a href=#1576 id=1576 data-nosnippet>1576</a> yield_ty.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1577 id=1577 data-nosnippet>1577</a> |
| <a href=#1578 id=1578 data-nosnippet>1578</a> <span class="macro">write!</span>(f, <span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#1579 id=1579 data-nosnippet>1579</a> return_ty.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1580 id=1580 data-nosnippet>1580</a> } |
| <a href=#1581 id=1581 data-nosnippet>1581</a> <span class="kw">_ </span>=> <span class="macro">panic!</span>(<span class="string">"invalid expr for coroutine: {expr:?}"</span>), |
| <a href=#1582 id=1582 data-nosnippet>1582</a> } |
| <a href=#1583 id=1583 data-nosnippet>1583</a> } |
| <a href=#1584 id=1584 data-nosnippet>1584</a> TyKind::CoroutineWitness(..) => <span class="macro">write!</span>(f, <span class="string">"{{coroutine witness}}"</span>)<span class="question-mark">?</span>, |
| <a href=#1585 id=1585 data-nosnippet>1585</a> TyKind::Pat(<span class="kw">_</span>, <span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"{{pat}}"</span>)<span class="question-mark">?</span>, |
| <a href=#1586 id=1586 data-nosnippet>1586</a> TyKind::UnsafeBinder(<span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"{{unsafe binder}}"</span>)<span class="question-mark">?</span>, |
| <a href=#1587 id=1587 data-nosnippet>1587</a> TyKind::Alias(<span class="kw">_</span>, <span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"{{alias}}"</span>)<span class="question-mark">?</span>, |
| <a href=#1588 id=1588 data-nosnippet>1588</a> } |
| <a href=#1589 id=1589 data-nosnippet>1589</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1590 id=1590 data-nosnippet>1590</a> } |
| <a href=#1591 id=1591 data-nosnippet>1591</a>} |
| <a href=#1592 id=1592 data-nosnippet>1592</a> |
| <a href=#1593 id=1593 data-nosnippet>1593</a><span class="kw">fn </span>hir_fmt_generics<<span class="lifetime">'db</span>>( |
| <a href=#1594 id=1594 data-nosnippet>1594</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1595 id=1595 data-nosnippet>1595</a> parameters: <span class="kw-2">&</span>[GenericArg<<span class="lifetime">'db</span>>], |
| <a href=#1596 id=1596 data-nosnippet>1596</a> generic_def: <span class="prelude-ty">Option</span><hir_def::GenericDefId>, |
| <a href=#1597 id=1597 data-nosnippet>1597</a> self_: <span class="prelude-ty">Option</span><Ty<<span class="lifetime">'db</span>>>, |
| <a href=#1598 id=1598 data-nosnippet>1598</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1599 id=1599 data-nosnippet>1599</a> <span class="kw">if </span>parameters.is_empty() { |
| <a href=#1600 id=1600 data-nosnippet>1600</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| <a href=#1601 id=1601 data-nosnippet>1601</a> } |
| <a href=#1602 id=1602 data-nosnippet>1602</a> |
| <a href=#1603 id=1603 data-nosnippet>1603</a> <span class="kw">let </span>parameters_to_write = generic_args_sans_defaults(f, generic_def, parameters); |
| <a href=#1604 id=1604 data-nosnippet>1604</a> |
| <a href=#1605 id=1605 data-nosnippet>1605</a> <span class="kw">if </span>!parameters_to_write.is_empty() { |
| <a href=#1606 id=1606 data-nosnippet>1606</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#1607 id=1607 data-nosnippet>1607</a> hir_fmt_generic_arguments(f, parameters_to_write, self_)<span class="question-mark">?</span>; |
| <a href=#1608 id=1608 data-nosnippet>1608</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1609 id=1609 data-nosnippet>1609</a> } |
| <a href=#1610 id=1610 data-nosnippet>1610</a> |
| <a href=#1611 id=1611 data-nosnippet>1611</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1612 id=1612 data-nosnippet>1612</a>} |
| <a href=#1613 id=1613 data-nosnippet>1613</a> |
| <a href=#1614 id=1614 data-nosnippet>1614</a><span class="kw">fn </span>generic_args_sans_defaults<<span class="lifetime">'ga</span>, <span class="lifetime">'db</span>>( |
| <a href=#1615 id=1615 data-nosnippet>1615</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1616 id=1616 data-nosnippet>1616</a> generic_def: <span class="prelude-ty">Option</span><hir_def::GenericDefId>, |
| <a href=#1617 id=1617 data-nosnippet>1617</a> parameters: <span class="kw-2">&</span><span class="lifetime">'ga </span>[GenericArg<<span class="lifetime">'db</span>>], |
| <a href=#1618 id=1618 data-nosnippet>1618</a>) -> <span class="kw-2">&</span><span class="lifetime">'ga </span>[GenericArg<<span class="lifetime">'db</span>>] { |
| <a href=#1619 id=1619 data-nosnippet>1619</a> <span class="kw">if </span>f.display_kind.is_source_code() || f.omit_verbose_types() { |
| <a href=#1620 id=1620 data-nosnippet>1620</a> <span class="kw">match </span>generic_def.map(|generic_def_id| f.db.generic_defaults(generic_def_id)) { |
| <a href=#1621 id=1621 data-nosnippet>1621</a> <span class="prelude-val">None </span>=> parameters, |
| <a href=#1622 id=1622 data-nosnippet>1622</a> <span class="prelude-val">Some</span>(default_parameters) => { |
| <a href=#1623 id=1623 data-nosnippet>1623</a> <span class="kw">let </span>should_show = |arg: GenericArg<<span class="lifetime">'db</span>>, i: usize| <span class="kw">match </span>default_parameters.get(i) { |
| <a href=#1624 id=1624 data-nosnippet>1624</a> <span class="prelude-val">None </span>=> <span class="bool-val">true</span>, |
| <a href=#1625 id=1625 data-nosnippet>1625</a> <span class="prelude-val">Some</span>(default_parameter) => { |
| <a href=#1626 id=1626 data-nosnippet>1626</a> <span class="macro">arg !</span>= default_parameter.instantiate(f.interner, <span class="kw-2">&</span>parameters[..i]) |
| <a href=#1627 id=1627 data-nosnippet>1627</a> } |
| <a href=#1628 id=1628 data-nosnippet>1628</a> }; |
| <a href=#1629 id=1629 data-nosnippet>1629</a> <span class="kw">let </span><span class="kw-2">mut </span>default_from = <span class="number">0</span>; |
| <a href=#1630 id=1630 data-nosnippet>1630</a> <span class="kw">for </span>(i, <span class="kw-2">&</span>parameter) <span class="kw">in </span>parameters.iter().enumerate() { |
| <a href=#1631 id=1631 data-nosnippet>1631</a> <span class="kw">if </span>should_show(parameter, i) { |
| <a href=#1632 id=1632 data-nosnippet>1632</a> default_from = i + <span class="number">1</span>; |
| <a href=#1633 id=1633 data-nosnippet>1633</a> } |
| <a href=#1634 id=1634 data-nosnippet>1634</a> } |
| <a href=#1635 id=1635 data-nosnippet>1635</a> <span class="kw-2">&</span>parameters[<span class="number">0</span>..default_from] |
| <a href=#1636 id=1636 data-nosnippet>1636</a> } |
| <a href=#1637 id=1637 data-nosnippet>1637</a> } |
| <a href=#1638 id=1638 data-nosnippet>1638</a> } <span class="kw">else </span>{ |
| <a href=#1639 id=1639 data-nosnippet>1639</a> parameters |
| <a href=#1640 id=1640 data-nosnippet>1640</a> } |
| <a href=#1641 id=1641 data-nosnippet>1641</a>} |
| <a href=#1642 id=1642 data-nosnippet>1642</a> |
| <a href=#1643 id=1643 data-nosnippet>1643</a><span class="kw">fn </span>hir_fmt_generic_args<<span class="lifetime">'db</span>>( |
| <a href=#1644 id=1644 data-nosnippet>1644</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1645 id=1645 data-nosnippet>1645</a> parameters: <span class="kw-2">&</span>[GenericArg<<span class="lifetime">'db</span>>], |
| <a href=#1646 id=1646 data-nosnippet>1646</a> generic_def: <span class="prelude-ty">Option</span><hir_def::GenericDefId>, |
| <a href=#1647 id=1647 data-nosnippet>1647</a> self_: <span class="prelude-ty">Option</span><Ty<<span class="lifetime">'db</span>>>, |
| <a href=#1648 id=1648 data-nosnippet>1648</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1649 id=1649 data-nosnippet>1649</a> <span class="kw">if </span>parameters.is_empty() { |
| <a href=#1650 id=1650 data-nosnippet>1650</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| <a href=#1651 id=1651 data-nosnippet>1651</a> } |
| <a href=#1652 id=1652 data-nosnippet>1652</a> |
| <a href=#1653 id=1653 data-nosnippet>1653</a> <span class="kw">let </span>parameters_to_write = generic_args_sans_defaults(f, generic_def, parameters); |
| <a href=#1654 id=1654 data-nosnippet>1654</a> |
| <a href=#1655 id=1655 data-nosnippet>1655</a> <span class="kw">if </span>!parameters_to_write.is_empty() { |
| <a href=#1656 id=1656 data-nosnippet>1656</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#1657 id=1657 data-nosnippet>1657</a> hir_fmt_generic_arguments(f, parameters_to_write, self_)<span class="question-mark">?</span>; |
| <a href=#1658 id=1658 data-nosnippet>1658</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1659 id=1659 data-nosnippet>1659</a> } |
| <a href=#1660 id=1660 data-nosnippet>1660</a> |
| <a href=#1661 id=1661 data-nosnippet>1661</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1662 id=1662 data-nosnippet>1662</a>} |
| <a href=#1663 id=1663 data-nosnippet>1663</a> |
| <a href=#1664 id=1664 data-nosnippet>1664</a><span class="kw">fn </span>hir_fmt_generic_arguments<<span class="lifetime">'db</span>>( |
| <a href=#1665 id=1665 data-nosnippet>1665</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1666 id=1666 data-nosnippet>1666</a> parameters: <span class="kw-2">&</span>[GenericArg<<span class="lifetime">'db</span>>], |
| <a href=#1667 id=1667 data-nosnippet>1667</a> self_: <span class="prelude-ty">Option</span><Ty<<span class="lifetime">'db</span>>>, |
| <a href=#1668 id=1668 data-nosnippet>1668</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1669 id=1669 data-nosnippet>1669</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#1670 id=1670 data-nosnippet>1670</a> <span class="kw">let </span>lifetime_offset = parameters.iter().position(|arg| arg.region().is_some()); |
| <a href=#1671 id=1671 data-nosnippet>1671</a> |
| <a href=#1672 id=1672 data-nosnippet>1672</a> <span class="kw">let </span>(ty_or_const, lifetimes) = <span class="kw">match </span>lifetime_offset { |
| <a href=#1673 id=1673 data-nosnippet>1673</a> <span class="prelude-val">Some</span>(offset) => parameters.split_at(offset), |
| <a href=#1674 id=1674 data-nosnippet>1674</a> <span class="prelude-val">None </span>=> (parameters, <span class="kw-2">&</span>[][..]), |
| <a href=#1675 id=1675 data-nosnippet>1675</a> }; |
| <a href=#1676 id=1676 data-nosnippet>1676</a> <span class="kw">for </span>generic_arg <span class="kw">in </span>lifetimes.iter().chain(ty_or_const) { |
| <a href=#1677 id=1677 data-nosnippet>1677</a> <span class="kw">if </span>!mem::take(<span class="kw-2">&mut </span>first) { |
| <a href=#1678 id=1678 data-nosnippet>1678</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1679 id=1679 data-nosnippet>1679</a> } |
| <a href=#1680 id=1680 data-nosnippet>1680</a> <span class="kw">match </span>self_ { |
| <a href=#1681 id=1681 data-nosnippet>1681</a> self_ @ <span class="prelude-val">Some</span>(<span class="kw">_</span>) <span class="kw">if </span>generic_arg.ty() == self_ => <span class="macro">write!</span>(f, <span class="string">"Self"</span>)<span class="question-mark">?</span>, |
| <a href=#1682 id=1682 data-nosnippet>1682</a> <span class="kw">_ </span>=> generic_arg.hir_fmt(f)<span class="question-mark">?</span>, |
| <a href=#1683 id=1683 data-nosnippet>1683</a> } |
| <a href=#1684 id=1684 data-nosnippet>1684</a> } |
| <a href=#1685 id=1685 data-nosnippet>1685</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1686 id=1686 data-nosnippet>1686</a>} |
| <a href=#1687 id=1687 data-nosnippet>1687</a> |
| <a href=#1688 id=1688 data-nosnippet>1688</a><span class="kw">fn </span>hir_fmt_tys<<span class="lifetime">'db</span>>( |
| <a href=#1689 id=1689 data-nosnippet>1689</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1690 id=1690 data-nosnippet>1690</a> tys: <span class="kw-2">&</span>[Ty<<span class="lifetime">'db</span>>], |
| <a href=#1691 id=1691 data-nosnippet>1691</a> self_: <span class="prelude-ty">Option</span><Ty<<span class="lifetime">'db</span>>>, |
| <a href=#1692 id=1692 data-nosnippet>1692</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1693 id=1693 data-nosnippet>1693</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#1694 id=1694 data-nosnippet>1694</a> |
| <a href=#1695 id=1695 data-nosnippet>1695</a> <span class="kw">for </span>ty <span class="kw">in </span>tys { |
| <a href=#1696 id=1696 data-nosnippet>1696</a> <span class="kw">if </span>!mem::take(<span class="kw-2">&mut </span>first) { |
| <a href=#1697 id=1697 data-nosnippet>1697</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1698 id=1698 data-nosnippet>1698</a> } |
| <a href=#1699 id=1699 data-nosnippet>1699</a> <span class="kw">match </span>self_ { |
| <a href=#1700 id=1700 data-nosnippet>1700</a> <span class="prelude-val">Some</span>(self_) <span class="kw">if </span><span class="kw-2">*</span>ty == self_ => <span class="macro">write!</span>(f, <span class="string">"Self"</span>)<span class="question-mark">?</span>, |
| <a href=#1701 id=1701 data-nosnippet>1701</a> <span class="kw">_ </span>=> ty.hir_fmt(f)<span class="question-mark">?</span>, |
| <a href=#1702 id=1702 data-nosnippet>1702</a> } |
| <a href=#1703 id=1703 data-nosnippet>1703</a> } |
| <a href=#1704 id=1704 data-nosnippet>1704</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1705 id=1705 data-nosnippet>1705</a>} |
| <a href=#1706 id=1706 data-nosnippet>1706</a> |
| <a href=#1707 id=1707 data-nosnippet>1707</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>PolyFnSig<<span class="lifetime">'db</span>> { |
| <a href=#1708 id=1708 data-nosnippet>1708</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1709 id=1709 data-nosnippet>1709</a> <span class="kw">let </span>FnSig { inputs_and_output, c_variadic, safety, abi: <span class="kw">_ </span>} = <span class="self">self</span>.skip_binder(); |
| <a href=#1710 id=1710 data-nosnippet>1710</a> <span class="kw">if let </span>Safety::Unsafe = safety { |
| <a href=#1711 id=1711 data-nosnippet>1711</a> <span class="macro">write!</span>(f, <span class="string">"unsafe "</span>)<span class="question-mark">?</span>; |
| <a href=#1712 id=1712 data-nosnippet>1712</a> } |
| <a href=#1713 id=1713 data-nosnippet>1713</a> <span class="comment">// FIXME: Enable this when the FIXME on FnAbi regarding PartialEq is fixed. |
| <a href=#1714 id=1714 data-nosnippet>1714</a> // if !matches!(abi, FnAbi::Rust) { |
| <a href=#1715 id=1715 data-nosnippet>1715</a> // f.write_str("extern \"")?; |
| <a href=#1716 id=1716 data-nosnippet>1716</a> // f.write_str(abi.as_str())?; |
| <a href=#1717 id=1717 data-nosnippet>1717</a> // f.write_str("\" ")?; |
| <a href=#1718 id=1718 data-nosnippet>1718</a> // } |
| <a href=#1719 id=1719 data-nosnippet>1719</a> </span><span class="macro">write!</span>(f, <span class="string">"fn("</span>)<span class="question-mark">?</span>; |
| <a href=#1720 id=1720 data-nosnippet>1720</a> f.write_joined(inputs_and_output.inputs(), <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1721 id=1721 data-nosnippet>1721</a> <span class="kw">if </span>c_variadic { |
| <a href=#1722 id=1722 data-nosnippet>1722</a> <span class="kw">if </span>inputs_and_output.inputs().is_empty() { |
| <a href=#1723 id=1723 data-nosnippet>1723</a> <span class="macro">write!</span>(f, <span class="string">"..."</span>)<span class="question-mark">?</span>; |
| <a href=#1724 id=1724 data-nosnippet>1724</a> } <span class="kw">else </span>{ |
| <a href=#1725 id=1725 data-nosnippet>1725</a> <span class="macro">write!</span>(f, <span class="string">", ..."</span>)<span class="question-mark">?</span>; |
| <a href=#1726 id=1726 data-nosnippet>1726</a> } |
| <a href=#1727 id=1727 data-nosnippet>1727</a> } |
| <a href=#1728 id=1728 data-nosnippet>1728</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#1729 id=1729 data-nosnippet>1729</a> <span class="kw">let </span>ret = inputs_and_output.output(); |
| <a href=#1730 id=1730 data-nosnippet>1730</a> <span class="kw">if </span>!ret.is_unit() { |
| <a href=#1731 id=1731 data-nosnippet>1731</a> <span class="macro">write!</span>(f, <span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#1732 id=1732 data-nosnippet>1732</a> ret.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1733 id=1733 data-nosnippet>1733</a> } |
| <a href=#1734 id=1734 data-nosnippet>1734</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1735 id=1735 data-nosnippet>1735</a> } |
| <a href=#1736 id=1736 data-nosnippet>1736</a>} |
| <a href=#1737 id=1737 data-nosnippet>1737</a> |
| <a href=#1738 id=1738 data-nosnippet>1738</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>Term<<span class="lifetime">'db</span>> { |
| <a href=#1739 id=1739 data-nosnippet>1739</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1740 id=1740 data-nosnippet>1740</a> <span class="kw">match </span><span class="self">self</span>.kind() { |
| <a href=#1741 id=1741 data-nosnippet>1741</a> TermKind::Ty(it) => it.hir_fmt(f), |
| <a href=#1742 id=1742 data-nosnippet>1742</a> TermKind::Const(it) => it.hir_fmt(f), |
| <a href=#1743 id=1743 data-nosnippet>1743</a> } |
| <a href=#1744 id=1744 data-nosnippet>1744</a> } |
| <a href=#1745 id=1745 data-nosnippet>1745</a>} |
| <a href=#1746 id=1746 data-nosnippet>1746</a> |
| <a href=#1747 id=1747 data-nosnippet>1747</a><span class="attr">#[derive(Clone, Copy, PartialEq, Eq)] |
| <a href=#1748 id=1748 data-nosnippet>1748</a></span><span class="kw">pub enum </span>SizedByDefault { |
| <a href=#1749 id=1749 data-nosnippet>1749</a> NotSized, |
| <a href=#1750 id=1750 data-nosnippet>1750</a> Sized { anchor: Crate }, |
| <a href=#1751 id=1751 data-nosnippet>1751</a>} |
| <a href=#1752 id=1752 data-nosnippet>1752</a> |
| <a href=#1753 id=1753 data-nosnippet>1753</a><span class="kw">impl </span>SizedByDefault { |
| <a href=#1754 id=1754 data-nosnippet>1754</a> <span class="kw">fn </span>is_sized_trait(<span class="self">self</span>, trait_: TraitId, interner: DbInterner<<span class="lifetime">'_</span>>) -> bool { |
| <a href=#1755 id=1755 data-nosnippet>1755</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#1756 id=1756 data-nosnippet>1756</a> <span class="self">Self</span>::NotSized => <span class="bool-val">false</span>, |
| <a href=#1757 id=1757 data-nosnippet>1757</a> <span class="self">Self</span>::Sized { .. } => { |
| <a href=#1758 id=1758 data-nosnippet>1758</a> <span class="kw">let </span>sized_trait = interner.lang_items().Sized; |
| <a href=#1759 id=1759 data-nosnippet>1759</a> <span class="prelude-val">Some</span>(trait_) == sized_trait |
| <a href=#1760 id=1760 data-nosnippet>1760</a> } |
| <a href=#1761 id=1761 data-nosnippet>1761</a> } |
| <a href=#1762 id=1762 data-nosnippet>1762</a> } |
| <a href=#1763 id=1763 data-nosnippet>1763</a>} |
| <a href=#1764 id=1764 data-nosnippet>1764</a> |
| <a href=#1765 id=1765 data-nosnippet>1765</a><span class="kw">pub fn </span>write_bounds_like_dyn_trait_with_prefix<<span class="lifetime">'db</span>>( |
| <a href=#1766 id=1766 data-nosnippet>1766</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1767 id=1767 data-nosnippet>1767</a> prefix: <span class="kw-2">&</span>str, |
| <a href=#1768 id=1768 data-nosnippet>1768</a> this: Either<Ty<<span class="lifetime">'db</span>>, Region<<span class="lifetime">'db</span>>>, |
| <a href=#1769 id=1769 data-nosnippet>1769</a> predicates: <span class="kw-2">&</span>[Clause<<span class="lifetime">'db</span>>], |
| <a href=#1770 id=1770 data-nosnippet>1770</a> default_sized: SizedByDefault, |
| <a href=#1771 id=1771 data-nosnippet>1771</a> needs_parens_if_multi: bool, |
| <a href=#1772 id=1772 data-nosnippet>1772</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1773 id=1773 data-nosnippet>1773</a> <span class="kw">let </span>needs_parens = |
| <a href=#1774 id=1774 data-nosnippet>1774</a> needs_parens_if_multi && trait_bounds_need_parens(f, this, predicates, default_sized); |
| <a href=#1775 id=1775 data-nosnippet>1775</a> <span class="kw">if </span>needs_parens { |
| <a href=#1776 id=1776 data-nosnippet>1776</a> <span class="macro">write!</span>(f, <span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#1777 id=1777 data-nosnippet>1777</a> } |
| <a href=#1778 id=1778 data-nosnippet>1778</a> <span class="macro">write!</span>(f, <span class="string">"{prefix}"</span>)<span class="question-mark">?</span>; |
| <a href=#1779 id=1779 data-nosnippet>1779</a> <span class="kw">if </span>!predicates.is_empty() |
| <a href=#1780 id=1780 data-nosnippet>1780</a> || predicates.is_empty() && <span class="macro">matches!</span>(default_sized, SizedByDefault::Sized { .. }) |
| <a href=#1781 id=1781 data-nosnippet>1781</a> { |
| <a href=#1782 id=1782 data-nosnippet>1782</a> <span class="macro">write!</span>(f, <span class="string">" "</span>)<span class="question-mark">?</span>; |
| <a href=#1783 id=1783 data-nosnippet>1783</a> write_bounds_like_dyn_trait(f, this, predicates, default_sized)<span class="question-mark">?</span>; |
| <a href=#1784 id=1784 data-nosnippet>1784</a> } |
| <a href=#1785 id=1785 data-nosnippet>1785</a> <span class="kw">if </span>needs_parens { |
| <a href=#1786 id=1786 data-nosnippet>1786</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#1787 id=1787 data-nosnippet>1787</a> } |
| <a href=#1788 id=1788 data-nosnippet>1788</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1789 id=1789 data-nosnippet>1789</a>} |
| <a href=#1790 id=1790 data-nosnippet>1790</a> |
| <a href=#1791 id=1791 data-nosnippet>1791</a><span class="kw">fn </span>trait_bounds_need_parens<<span class="lifetime">'db</span>>( |
| <a href=#1792 id=1792 data-nosnippet>1792</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1793 id=1793 data-nosnippet>1793</a> this: Either<Ty<<span class="lifetime">'db</span>>, Region<<span class="lifetime">'db</span>>>, |
| <a href=#1794 id=1794 data-nosnippet>1794</a> predicates: <span class="kw-2">&</span>[Clause<<span class="lifetime">'db</span>>], |
| <a href=#1795 id=1795 data-nosnippet>1795</a> default_sized: SizedByDefault, |
| <a href=#1796 id=1796 data-nosnippet>1796</a>) -> bool { |
| <a href=#1797 id=1797 data-nosnippet>1797</a> <span class="comment">// This needs to be kept in sync with `write_bounds_like_dyn_trait()`. |
| <a href=#1798 id=1798 data-nosnippet>1798</a> </span><span class="kw">let </span><span class="kw-2">mut </span>distinct_bounds = <span class="number">0usize</span>; |
| <a href=#1799 id=1799 data-nosnippet>1799</a> <span class="kw">let </span><span class="kw-2">mut </span>is_sized = <span class="bool-val">false</span>; |
| <a href=#1800 id=1800 data-nosnippet>1800</a> <span class="kw">for </span>p <span class="kw">in </span>predicates { |
| <a href=#1801 id=1801 data-nosnippet>1801</a> <span class="kw">match </span>p.kind().skip_binder() { |
| <a href=#1802 id=1802 data-nosnippet>1802</a> ClauseKind::Trait(trait_ref) => { |
| <a href=#1803 id=1803 data-nosnippet>1803</a> <span class="kw">let </span>trait_ = trait_ref.def_id().<span class="number">0</span>; |
| <a href=#1804 id=1804 data-nosnippet>1804</a> <span class="kw">if </span>default_sized.is_sized_trait(trait_, f.interner) { |
| <a href=#1805 id=1805 data-nosnippet>1805</a> is_sized = <span class="bool-val">true</span>; |
| <a href=#1806 id=1806 data-nosnippet>1806</a> <span class="kw">if </span><span class="macro">matches!</span>(default_sized, SizedByDefault::Sized { .. }) { |
| <a href=#1807 id=1807 data-nosnippet>1807</a> <span class="comment">// Don't print +Sized, but rather +?Sized if absent. |
| <a href=#1808 id=1808 data-nosnippet>1808</a> </span><span class="kw">continue</span>; |
| <a href=#1809 id=1809 data-nosnippet>1809</a> } |
| <a href=#1810 id=1810 data-nosnippet>1810</a> } |
| <a href=#1811 id=1811 data-nosnippet>1811</a> |
| <a href=#1812 id=1812 data-nosnippet>1812</a> distinct_bounds += <span class="number">1</span>; |
| <a href=#1813 id=1813 data-nosnippet>1813</a> } |
| <a href=#1814 id=1814 data-nosnippet>1814</a> ClauseKind::TypeOutlives(to) <span class="kw">if </span>Either::Left(to.<span class="number">0</span>) == this => distinct_bounds += <span class="number">1</span>, |
| <a href=#1815 id=1815 data-nosnippet>1815</a> ClauseKind::RegionOutlives(lo) <span class="kw">if </span>Either::Right(lo.<span class="number">0</span>) == this => distinct_bounds += <span class="number">1</span>, |
| <a href=#1816 id=1816 data-nosnippet>1816</a> <span class="kw">_ </span>=> {} |
| <a href=#1817 id=1817 data-nosnippet>1817</a> } |
| <a href=#1818 id=1818 data-nosnippet>1818</a> } |
| <a href=#1819 id=1819 data-nosnippet>1819</a> |
| <a href=#1820 id=1820 data-nosnippet>1820</a> <span class="kw">if let </span>SizedByDefault::Sized { .. } = default_sized |
| <a href=#1821 id=1821 data-nosnippet>1821</a> && !is_sized |
| <a href=#1822 id=1822 data-nosnippet>1822</a> { |
| <a href=#1823 id=1823 data-nosnippet>1823</a> distinct_bounds += <span class="number">1</span>; |
| <a href=#1824 id=1824 data-nosnippet>1824</a> } |
| <a href=#1825 id=1825 data-nosnippet>1825</a> |
| <a href=#1826 id=1826 data-nosnippet>1826</a> distinct_bounds > <span class="number">1 |
| <a href=#1827 id=1827 data-nosnippet>1827</a></span>} |
| <a href=#1828 id=1828 data-nosnippet>1828</a> |
| <a href=#1829 id=1829 data-nosnippet>1829</a><span class="kw">fn </span>write_bounds_like_dyn_trait<<span class="lifetime">'db</span>>( |
| <a href=#1830 id=1830 data-nosnippet>1830</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1831 id=1831 data-nosnippet>1831</a> this: Either<Ty<<span class="lifetime">'db</span>>, Region<<span class="lifetime">'db</span>>>, |
| <a href=#1832 id=1832 data-nosnippet>1832</a> predicates: <span class="kw-2">&</span>[Clause<<span class="lifetime">'db</span>>], |
| <a href=#1833 id=1833 data-nosnippet>1833</a> default_sized: SizedByDefault, |
| <a href=#1834 id=1834 data-nosnippet>1834</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1835 id=1835 data-nosnippet>1835</a> <span class="comment">// Note: This code is written to produce nice results (i.e. |
| <a href=#1836 id=1836 data-nosnippet>1836</a> // corresponding to surface Rust) for types that can occur in |
| <a href=#1837 id=1837 data-nosnippet>1837</a> // actual Rust. It will have weird results if the predicates |
| <a href=#1838 id=1838 data-nosnippet>1838</a> // aren't as expected (i.e. self types = $0, projection |
| <a href=#1839 id=1839 data-nosnippet>1839</a> // predicates for a certain trait come after the Implemented |
| <a href=#1840 id=1840 data-nosnippet>1840</a> // predicate for that trait). |
| <a href=#1841 id=1841 data-nosnippet>1841</a> </span><span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#1842 id=1842 data-nosnippet>1842</a> <span class="kw">let </span><span class="kw-2">mut </span>angle_open = <span class="bool-val">false</span>; |
| <a href=#1843 id=1843 data-nosnippet>1843</a> <span class="kw">let </span><span class="kw-2">mut </span>is_fn_trait = <span class="bool-val">false</span>; |
| <a href=#1844 id=1844 data-nosnippet>1844</a> <span class="kw">let </span><span class="kw-2">mut </span>is_sized = <span class="bool-val">false</span>; |
| <a href=#1845 id=1845 data-nosnippet>1845</a> <span class="kw">for </span>p <span class="kw">in </span>predicates { |
| <a href=#1846 id=1846 data-nosnippet>1846</a> <span class="kw">match </span>p.kind().skip_binder() { |
| <a href=#1847 id=1847 data-nosnippet>1847</a> ClauseKind::Trait(trait_ref) => { |
| <a href=#1848 id=1848 data-nosnippet>1848</a> <span class="kw">let </span>trait_ = trait_ref.def_id().<span class="number">0</span>; |
| <a href=#1849 id=1849 data-nosnippet>1849</a> <span class="kw">if </span>default_sized.is_sized_trait(trait_, f.interner) { |
| <a href=#1850 id=1850 data-nosnippet>1850</a> is_sized = <span class="bool-val">true</span>; |
| <a href=#1851 id=1851 data-nosnippet>1851</a> <span class="kw">if </span><span class="macro">matches!</span>(default_sized, SizedByDefault::Sized { .. }) { |
| <a href=#1852 id=1852 data-nosnippet>1852</a> <span class="comment">// Don't print +Sized, but rather +?Sized if absent. |
| <a href=#1853 id=1853 data-nosnippet>1853</a> </span><span class="kw">continue</span>; |
| <a href=#1854 id=1854 data-nosnippet>1854</a> } |
| <a href=#1855 id=1855 data-nosnippet>1855</a> } |
| <a href=#1856 id=1856 data-nosnippet>1856</a> <span class="kw">if </span>!is_fn_trait { |
| <a href=#1857 id=1857 data-nosnippet>1857</a> is_fn_trait = fn_traits(f.lang_items()).any(|it| it == trait_); |
| <a href=#1858 id=1858 data-nosnippet>1858</a> } |
| <a href=#1859 id=1859 data-nosnippet>1859</a> <span class="kw">if </span>!is_fn_trait && angle_open { |
| <a href=#1860 id=1860 data-nosnippet>1860</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1861 id=1861 data-nosnippet>1861</a> angle_open = <span class="bool-val">false</span>; |
| <a href=#1862 id=1862 data-nosnippet>1862</a> } |
| <a href=#1863 id=1863 data-nosnippet>1863</a> <span class="kw">if </span>!first { |
| <a href=#1864 id=1864 data-nosnippet>1864</a> <span class="macro">write!</span>(f, <span class="string">" + "</span>)<span class="question-mark">?</span>; |
| <a href=#1865 id=1865 data-nosnippet>1865</a> } |
| <a href=#1866 id=1866 data-nosnippet>1866</a> <span class="comment">// We assume that the self type is ^0.0 (i.e. the |
| <a href=#1867 id=1867 data-nosnippet>1867</a> // existential) here, which is the only thing that's |
| <a href=#1868 id=1868 data-nosnippet>1868</a> // possible in actual Rust, and hence don't print it |
| <a href=#1869 id=1869 data-nosnippet>1869</a> </span>f.start_location_link(trait_.into()); |
| <a href=#1870 id=1870 data-nosnippet>1870</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, f.db.trait_signature(trait_).name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#1871 id=1871 data-nosnippet>1871</a> f.end_location_link(); |
| <a href=#1872 id=1872 data-nosnippet>1872</a> <span class="kw">if </span>is_fn_trait { |
| <a href=#1873 id=1873 data-nosnippet>1873</a> <span class="kw">if let </span>[_self, params @ ..] = trait_ref.trait_ref.args.as_slice() |
| <a href=#1874 id=1874 data-nosnippet>1874</a> && <span class="kw">let </span><span class="prelude-val">Some</span>(args) = params.first().and_then(|it| it.ty()<span class="question-mark">?</span>.as_tuple()) |
| <a href=#1875 id=1875 data-nosnippet>1875</a> { |
| <a href=#1876 id=1876 data-nosnippet>1876</a> <span class="macro">write!</span>(f, <span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#1877 id=1877 data-nosnippet>1877</a> hir_fmt_tys(f, args.as_slice(), <span class="prelude-val">Some</span>(trait_ref.trait_ref.self_ty()))<span class="question-mark">?</span>; |
| <a href=#1878 id=1878 data-nosnippet>1878</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#1879 id=1879 data-nosnippet>1879</a> } |
| <a href=#1880 id=1880 data-nosnippet>1880</a> } <span class="kw">else </span>{ |
| <a href=#1881 id=1881 data-nosnippet>1881</a> <span class="kw">let </span>params = generic_args_sans_defaults( |
| <a href=#1882 id=1882 data-nosnippet>1882</a> f, |
| <a href=#1883 id=1883 data-nosnippet>1883</a> <span class="prelude-val">Some</span>(trait_.into()), |
| <a href=#1884 id=1884 data-nosnippet>1884</a> trait_ref.trait_ref.args.as_slice(), |
| <a href=#1885 id=1885 data-nosnippet>1885</a> ); |
| <a href=#1886 id=1886 data-nosnippet>1886</a> <span class="kw">if let </span>[_self, params @ ..] = params |
| <a href=#1887 id=1887 data-nosnippet>1887</a> && !params.is_empty() |
| <a href=#1888 id=1888 data-nosnippet>1888</a> { |
| <a href=#1889 id=1889 data-nosnippet>1889</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#1890 id=1890 data-nosnippet>1890</a> hir_fmt_generic_arguments(f, params, <span class="prelude-val">Some</span>(trait_ref.trait_ref.self_ty()))<span class="question-mark">?</span>; |
| <a href=#1891 id=1891 data-nosnippet>1891</a> <span class="comment">// there might be assoc type bindings, so we leave the angle brackets open |
| <a href=#1892 id=1892 data-nosnippet>1892</a> </span>angle_open = <span class="bool-val">true</span>; |
| <a href=#1893 id=1893 data-nosnippet>1893</a> } |
| <a href=#1894 id=1894 data-nosnippet>1894</a> } |
| <a href=#1895 id=1895 data-nosnippet>1895</a> } |
| <a href=#1896 id=1896 data-nosnippet>1896</a> ClauseKind::TypeOutlives(to) <span class="kw">if </span>Either::Left(to.<span class="number">0</span>) == this => { |
| <a href=#1897 id=1897 data-nosnippet>1897</a> <span class="kw">if </span>!is_fn_trait && angle_open { |
| <a href=#1898 id=1898 data-nosnippet>1898</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1899 id=1899 data-nosnippet>1899</a> angle_open = <span class="bool-val">false</span>; |
| <a href=#1900 id=1900 data-nosnippet>1900</a> } |
| <a href=#1901 id=1901 data-nosnippet>1901</a> <span class="kw">if </span>!first { |
| <a href=#1902 id=1902 data-nosnippet>1902</a> <span class="macro">write!</span>(f, <span class="string">" + "</span>)<span class="question-mark">?</span>; |
| <a href=#1903 id=1903 data-nosnippet>1903</a> } |
| <a href=#1904 id=1904 data-nosnippet>1904</a> to.<span class="number">1</span>.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1905 id=1905 data-nosnippet>1905</a> } |
| <a href=#1906 id=1906 data-nosnippet>1906</a> ClauseKind::RegionOutlives(lo) <span class="kw">if </span>Either::Right(lo.<span class="number">0</span>) == this => { |
| <a href=#1907 id=1907 data-nosnippet>1907</a> <span class="kw">if </span>!is_fn_trait && angle_open { |
| <a href=#1908 id=1908 data-nosnippet>1908</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1909 id=1909 data-nosnippet>1909</a> angle_open = <span class="bool-val">false</span>; |
| <a href=#1910 id=1910 data-nosnippet>1910</a> } |
| <a href=#1911 id=1911 data-nosnippet>1911</a> <span class="kw">if </span>!first { |
| <a href=#1912 id=1912 data-nosnippet>1912</a> <span class="macro">write!</span>(f, <span class="string">" + "</span>)<span class="question-mark">?</span>; |
| <a href=#1913 id=1913 data-nosnippet>1913</a> } |
| <a href=#1914 id=1914 data-nosnippet>1914</a> lo.<span class="number">1</span>.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1915 id=1915 data-nosnippet>1915</a> } |
| <a href=#1916 id=1916 data-nosnippet>1916</a> ClauseKind::Projection(projection) <span class="kw">if </span>is_fn_trait => { |
| <a href=#1917 id=1917 data-nosnippet>1917</a> is_fn_trait = <span class="bool-val">false</span>; |
| <a href=#1918 id=1918 data-nosnippet>1918</a> <span class="kw">if </span>!projection.term.as_type().is_some_and(|it| it.is_unit()) { |
| <a href=#1919 id=1919 data-nosnippet>1919</a> <span class="macro">write!</span>(f, <span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#1920 id=1920 data-nosnippet>1920</a> projection.term.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1921 id=1921 data-nosnippet>1921</a> } |
| <a href=#1922 id=1922 data-nosnippet>1922</a> } |
| <a href=#1923 id=1923 data-nosnippet>1923</a> ClauseKind::Projection(projection) => { |
| <a href=#1924 id=1924 data-nosnippet>1924</a> <span class="comment">// in types in actual Rust, these will always come |
| <a href=#1925 id=1925 data-nosnippet>1925</a> // after the corresponding Implemented predicate |
| <a href=#1926 id=1926 data-nosnippet>1926</a> </span><span class="kw">if </span>angle_open { |
| <a href=#1927 id=1927 data-nosnippet>1927</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#1928 id=1928 data-nosnippet>1928</a> } <span class="kw">else </span>{ |
| <a href=#1929 id=1929 data-nosnippet>1929</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#1930 id=1930 data-nosnippet>1930</a> angle_open = <span class="bool-val">true</span>; |
| <a href=#1931 id=1931 data-nosnippet>1931</a> } |
| <a href=#1932 id=1932 data-nosnippet>1932</a> <span class="kw">let </span>assoc_ty_id = projection.def_id().expect_type_alias(); |
| <a href=#1933 id=1933 data-nosnippet>1933</a> <span class="kw">let </span>type_alias = f.db.type_alias_signature(assoc_ty_id); |
| <a href=#1934 id=1934 data-nosnippet>1934</a> f.start_location_link(assoc_ty_id.into()); |
| <a href=#1935 id=1935 data-nosnippet>1935</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, type_alias.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#1936 id=1936 data-nosnippet>1936</a> f.end_location_link(); |
| <a href=#1937 id=1937 data-nosnippet>1937</a> |
| <a href=#1938 id=1938 data-nosnippet>1938</a> <span class="kw">let </span>own_args = projection.projection_term.own_args(f.interner); |
| <a href=#1939 id=1939 data-nosnippet>1939</a> <span class="kw">if </span>!own_args.is_empty() { |
| <a href=#1940 id=1940 data-nosnippet>1940</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#1941 id=1941 data-nosnippet>1941</a> hir_fmt_generic_arguments(f, own_args, <span class="prelude-val">None</span>)<span class="question-mark">?</span>; |
| <a href=#1942 id=1942 data-nosnippet>1942</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1943 id=1943 data-nosnippet>1943</a> } |
| <a href=#1944 id=1944 data-nosnippet>1944</a> <span class="macro">write!</span>(f, <span class="string">" = "</span>)<span class="question-mark">?</span>; |
| <a href=#1945 id=1945 data-nosnippet>1945</a> projection.term.hir_fmt(f)<span class="question-mark">?</span>; |
| <a href=#1946 id=1946 data-nosnippet>1946</a> } |
| <a href=#1947 id=1947 data-nosnippet>1947</a> <span class="kw">_ </span>=> {} |
| <a href=#1948 id=1948 data-nosnippet>1948</a> } |
| <a href=#1949 id=1949 data-nosnippet>1949</a> first = <span class="bool-val">false</span>; |
| <a href=#1950 id=1950 data-nosnippet>1950</a> } |
| <a href=#1951 id=1951 data-nosnippet>1951</a> <span class="kw">if </span>angle_open { |
| <a href=#1952 id=1952 data-nosnippet>1952</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#1953 id=1953 data-nosnippet>1953</a> } |
| <a href=#1954 id=1954 data-nosnippet>1954</a> <span class="kw">if let </span>SizedByDefault::Sized { anchor } = default_sized { |
| <a href=#1955 id=1955 data-nosnippet>1955</a> <span class="kw">let </span>sized_trait = hir_def::lang_item::lang_items(f.db, anchor).Sized; |
| <a href=#1956 id=1956 data-nosnippet>1956</a> <span class="kw">if </span>!is_sized { |
| <a href=#1957 id=1957 data-nosnippet>1957</a> <span class="kw">if </span>!first { |
| <a href=#1958 id=1958 data-nosnippet>1958</a> <span class="macro">write!</span>(f, <span class="string">" + "</span>)<span class="question-mark">?</span>; |
| <a href=#1959 id=1959 data-nosnippet>1959</a> } |
| <a href=#1960 id=1960 data-nosnippet>1960</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(sized_trait) = sized_trait { |
| <a href=#1961 id=1961 data-nosnippet>1961</a> f.start_location_link(sized_trait.into()); |
| <a href=#1962 id=1962 data-nosnippet>1962</a> } |
| <a href=#1963 id=1963 data-nosnippet>1963</a> <span class="macro">write!</span>(f, <span class="string">"?Sized"</span>)<span class="question-mark">?</span>; |
| <a href=#1964 id=1964 data-nosnippet>1964</a> } <span class="kw">else if </span>first { |
| <a href=#1965 id=1965 data-nosnippet>1965</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(sized_trait) = sized_trait { |
| <a href=#1966 id=1966 data-nosnippet>1966</a> f.start_location_link(sized_trait.into()); |
| <a href=#1967 id=1967 data-nosnippet>1967</a> } |
| <a href=#1968 id=1968 data-nosnippet>1968</a> <span class="macro">write!</span>(f, <span class="string">"Sized"</span>)<span class="question-mark">?</span>; |
| <a href=#1969 id=1969 data-nosnippet>1969</a> } |
| <a href=#1970 id=1970 data-nosnippet>1970</a> <span class="kw">if </span>sized_trait.is_some() { |
| <a href=#1971 id=1971 data-nosnippet>1971</a> f.end_location_link(); |
| <a href=#1972 id=1972 data-nosnippet>1972</a> } |
| <a href=#1973 id=1973 data-nosnippet>1973</a> } |
| <a href=#1974 id=1974 data-nosnippet>1974</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#1975 id=1975 data-nosnippet>1975</a>} |
| <a href=#1976 id=1976 data-nosnippet>1976</a> |
| <a href=#1977 id=1977 data-nosnippet>1977</a><span class="kw">pub fn </span>write_params_bounds<<span class="lifetime">'db</span>>( |
| <a href=#1978 id=1978 data-nosnippet>1978</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#1979 id=1979 data-nosnippet>1979</a> predicates: <span class="kw-2">&</span>[Clause<<span class="lifetime">'db</span>>], |
| <a href=#1980 id=1980 data-nosnippet>1980</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#1981 id=1981 data-nosnippet>1981</a> <span class="comment">// Use an FxIndexMap to keep user's order, as far as possible. |
| <a href=#1982 id=1982 data-nosnippet>1982</a> </span><span class="kw">let </span><span class="kw-2">mut </span>per_type = FxIndexMap::<<span class="kw">_</span>, Vec<<span class="kw">_</span>>>::default(); |
| <a href=#1983 id=1983 data-nosnippet>1983</a> <span class="kw">for </span><span class="kw-2">&</span>predicate <span class="kw">in </span>predicates { |
| <a href=#1984 id=1984 data-nosnippet>1984</a> <span class="kw">let </span>base_ty = <span class="kw">match </span>predicate.kind().skip_binder() { |
| <a href=#1985 id=1985 data-nosnippet>1985</a> ClauseKind::Trait(clause) => Either::Left(clause.self_ty()), |
| <a href=#1986 id=1986 data-nosnippet>1986</a> ClauseKind::RegionOutlives(clause) => Either::Right(clause.<span class="number">0</span>), |
| <a href=#1987 id=1987 data-nosnippet>1987</a> ClauseKind::TypeOutlives(clause) => Either::Left(clause.<span class="number">0</span>), |
| <a href=#1988 id=1988 data-nosnippet>1988</a> ClauseKind::Projection(clause) => Either::Left(clause.self_ty()), |
| <a href=#1989 id=1989 data-nosnippet>1989</a> ClauseKind::ConstArgHasType(..) |
| <a href=#1990 id=1990 data-nosnippet>1990</a> | ClauseKind::WellFormed(<span class="kw">_</span>) |
| <a href=#1991 id=1991 data-nosnippet>1991</a> | ClauseKind::ConstEvaluatable(<span class="kw">_</span>) |
| <a href=#1992 id=1992 data-nosnippet>1992</a> | ClauseKind::HostEffect(..) |
| <a href=#1993 id=1993 data-nosnippet>1993</a> | ClauseKind::UnstableFeature(<span class="kw">_</span>) => <span class="kw">continue</span>, |
| <a href=#1994 id=1994 data-nosnippet>1994</a> }; |
| <a href=#1995 id=1995 data-nosnippet>1995</a> per_type.entry(base_ty).or_default().push(predicate); |
| <a href=#1996 id=1996 data-nosnippet>1996</a> } |
| <a href=#1997 id=1997 data-nosnippet>1997</a> |
| <a href=#1998 id=1998 data-nosnippet>1998</a> <span class="kw">for </span>(base_ty, clauses) <span class="kw">in </span>per_type { |
| <a href=#1999 id=1999 data-nosnippet>1999</a> f.write_str(<span class="string">" "</span>)<span class="question-mark">?</span>; |
| <a href=#2000 id=2000 data-nosnippet>2000</a> <span class="kw">match </span>base_ty { |
| <a href=#2001 id=2001 data-nosnippet>2001</a> Either::Left(it) => it.hir_fmt(f)<span class="question-mark">?</span>, |
| <a href=#2002 id=2002 data-nosnippet>2002</a> Either::Right(it) => it.hir_fmt(f)<span class="question-mark">?</span>, |
| <a href=#2003 id=2003 data-nosnippet>2003</a> } |
| <a href=#2004 id=2004 data-nosnippet>2004</a> f.write_str(<span class="string">": "</span>)<span class="question-mark">?</span>; |
| <a href=#2005 id=2005 data-nosnippet>2005</a> <span class="comment">// Rudimentary approximation: type params are `Sized` by default, everything else not. |
| <a href=#2006 id=2006 data-nosnippet>2006</a> // FIXME: This is not correct, really. But I'm not sure how we can from the ty representation |
| <a href=#2007 id=2007 data-nosnippet>2007</a> // to extract the default sizedness, and if it's possible at all. |
| <a href=#2008 id=2008 data-nosnippet>2008</a> </span><span class="kw">let </span>default_sized = <span class="kw">match </span>base_ty { |
| <a href=#2009 id=2009 data-nosnippet>2009</a> Either::Left(ty) <span class="kw">if </span><span class="macro">matches!</span>(ty.kind(), TyKind::Param(<span class="kw">_</span>)) => { |
| <a href=#2010 id=2010 data-nosnippet>2010</a> SizedByDefault::Sized { anchor: f.krate() } |
| <a href=#2011 id=2011 data-nosnippet>2011</a> } |
| <a href=#2012 id=2012 data-nosnippet>2012</a> <span class="kw">_ </span>=> SizedByDefault::NotSized, |
| <a href=#2013 id=2013 data-nosnippet>2013</a> }; |
| <a href=#2014 id=2014 data-nosnippet>2014</a> write_bounds_like_dyn_trait(f, base_ty, <span class="kw-2">&</span>clauses, default_sized)<span class="question-mark">?</span>; |
| <a href=#2015 id=2015 data-nosnippet>2015</a> f.write_str(<span class="string">",\n"</span>)<span class="question-mark">?</span>; |
| <a href=#2016 id=2016 data-nosnippet>2016</a> } |
| <a href=#2017 id=2017 data-nosnippet>2017</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#2018 id=2018 data-nosnippet>2018</a>} |
| <a href=#2019 id=2019 data-nosnippet>2019</a> |
| <a href=#2020 id=2020 data-nosnippet>2020</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>TraitRef<<span class="lifetime">'db</span>> { |
| <a href=#2021 id=2021 data-nosnippet>2021</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2022 id=2022 data-nosnippet>2022</a> <span class="kw">let </span>trait_ = <span class="self">self</span>.def_id.<span class="number">0</span>; |
| <a href=#2023 id=2023 data-nosnippet>2023</a> f.start_location_link(trait_.into()); |
| <a href=#2024 id=2024 data-nosnippet>2024</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, f.db.trait_signature(trait_).name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#2025 id=2025 data-nosnippet>2025</a> f.end_location_link(); |
| <a href=#2026 id=2026 data-nosnippet>2026</a> <span class="kw">let </span>substs = <span class="self">self</span>.args.as_slice(); |
| <a href=#2027 id=2027 data-nosnippet>2027</a> hir_fmt_generic_args(f, <span class="kw-2">&</span>substs[<span class="number">1</span>..], <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="self">self</span>.self_ty())) |
| <a href=#2028 id=2028 data-nosnippet>2028</a> } |
| <a href=#2029 id=2029 data-nosnippet>2029</a>} |
| <a href=#2030 id=2030 data-nosnippet>2030</a> |
| <a href=#2031 id=2031 data-nosnippet>2031</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>Region<<span class="lifetime">'db</span>> { |
| <a href=#2032 id=2032 data-nosnippet>2032</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2033 id=2033 data-nosnippet>2033</a> <span class="kw">match </span><span class="self">self</span>.kind() { |
| <a href=#2034 id=2034 data-nosnippet>2034</a> RegionKind::ReEarlyParam(param) => { |
| <a href=#2035 id=2035 data-nosnippet>2035</a> <span class="kw">let </span>generics = generics(f.db, param.id.parent); |
| <a href=#2036 id=2036 data-nosnippet>2036</a> <span class="kw">let </span>param_data = <span class="kw-2">&</span>generics[param.id.local_id]; |
| <a href=#2037 id=2037 data-nosnippet>2037</a> f.start_location_link_generic(param.id.into()); |
| <a href=#2038 id=2038 data-nosnippet>2038</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, param_data.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#2039 id=2039 data-nosnippet>2039</a> f.end_location_link(); |
| <a href=#2040 id=2040 data-nosnippet>2040</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#2041 id=2041 data-nosnippet>2041</a> } |
| <a href=#2042 id=2042 data-nosnippet>2042</a> RegionKind::ReBound(BoundVarIndexKind::Bound(db), idx) => { |
| <a href=#2043 id=2043 data-nosnippet>2043</a> <span class="macro">write!</span>(f, <span class="string">"?{}.{}"</span>, db.as_u32(), idx.var.as_u32()) |
| <a href=#2044 id=2044 data-nosnippet>2044</a> } |
| <a href=#2045 id=2045 data-nosnippet>2045</a> RegionKind::ReBound(BoundVarIndexKind::Canonical, idx) => { |
| <a href=#2046 id=2046 data-nosnippet>2046</a> <span class="macro">write!</span>(f, <span class="string">"?c.{}"</span>, idx.var.as_u32()) |
| <a href=#2047 id=2047 data-nosnippet>2047</a> } |
| <a href=#2048 id=2048 data-nosnippet>2048</a> RegionKind::ReVar(<span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"_"</span>), |
| <a href=#2049 id=2049 data-nosnippet>2049</a> RegionKind::ReStatic => <span class="macro">write!</span>(f, <span class="string">"'static"</span>), |
| <a href=#2050 id=2050 data-nosnippet>2050</a> RegionKind::ReError(..) => { |
| <a href=#2051 id=2051 data-nosnippet>2051</a> <span class="kw">if </span><span class="macro">cfg!</span>(test) { |
| <a href=#2052 id=2052 data-nosnippet>2052</a> <span class="macro">write!</span>(f, <span class="string">"'?"</span>) |
| <a href=#2053 id=2053 data-nosnippet>2053</a> } <span class="kw">else </span>{ |
| <a href=#2054 id=2054 data-nosnippet>2054</a> <span class="macro">write!</span>(f, <span class="string">"'_"</span>) |
| <a href=#2055 id=2055 data-nosnippet>2055</a> } |
| <a href=#2056 id=2056 data-nosnippet>2056</a> } |
| <a href=#2057 id=2057 data-nosnippet>2057</a> RegionKind::ReErased => <span class="macro">write!</span>(f, <span class="string">"'<erased>"</span>), |
| <a href=#2058 id=2058 data-nosnippet>2058</a> RegionKind::RePlaceholder(<span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"<placeholder>"</span>), |
| <a href=#2059 id=2059 data-nosnippet>2059</a> RegionKind::ReLateParam(<span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"<late-param>"</span>), |
| <a href=#2060 id=2060 data-nosnippet>2060</a> } |
| <a href=#2061 id=2061 data-nosnippet>2061</a> } |
| <a href=#2062 id=2062 data-nosnippet>2062</a>} |
| <a href=#2063 id=2063 data-nosnippet>2063</a> |
| <a href=#2064 id=2064 data-nosnippet>2064</a><span class="kw">pub fn </span>write_visibility<<span class="lifetime">'db</span>>( |
| <a href=#2065 id=2065 data-nosnippet>2065</a> module_id: ModuleId, |
| <a href=#2066 id=2066 data-nosnippet>2066</a> vis: Visibility, |
| <a href=#2067 id=2067 data-nosnippet>2067</a> f: <span class="kw-2">&mut </span>HirFormatter<<span class="lifetime">'_</span>, <span class="lifetime">'db</span>>, |
| <a href=#2068 id=2068 data-nosnippet>2068</a>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2069 id=2069 data-nosnippet>2069</a> <span class="kw">match </span>vis { |
| <a href=#2070 id=2070 data-nosnippet>2070</a> Visibility::Public => <span class="macro">write!</span>(f, <span class="string">"pub "</span>), |
| <a href=#2071 id=2071 data-nosnippet>2071</a> Visibility::PubCrate(<span class="kw">_</span>) => <span class="macro">write!</span>(f, <span class="string">"pub(crate) "</span>), |
| <a href=#2072 id=2072 data-nosnippet>2072</a> Visibility::Module(vis_id, <span class="kw">_</span>) => { |
| <a href=#2073 id=2073 data-nosnippet>2073</a> <span class="kw">let </span>def_map = module_id.def_map(f.db); |
| <a href=#2074 id=2074 data-nosnippet>2074</a> <span class="kw">let </span>root_module_id = def_map.root_module_id(); |
| <a href=#2075 id=2075 data-nosnippet>2075</a> <span class="kw">if </span>vis_id == module_id { |
| <a href=#2076 id=2076 data-nosnippet>2076</a> <span class="comment">// pub(self) or omitted |
| <a href=#2077 id=2077 data-nosnippet>2077</a> </span><span class="prelude-val">Ok</span>(()) |
| <a href=#2078 id=2078 data-nosnippet>2078</a> } <span class="kw">else if </span>root_module_id == vis_id && root_module_id.block(f.db).is_none() { |
| <a href=#2079 id=2079 data-nosnippet>2079</a> <span class="macro">write!</span>(f, <span class="string">"pub(crate) "</span>) |
| <a href=#2080 id=2080 data-nosnippet>2080</a> } <span class="kw">else if </span>module_id.containing_module(f.db) == <span class="prelude-val">Some</span>(vis_id) |
| <a href=#2081 id=2081 data-nosnippet>2081</a> && !vis_id.is_block_module(f.db) |
| <a href=#2082 id=2082 data-nosnippet>2082</a> { |
| <a href=#2083 id=2083 data-nosnippet>2083</a> <span class="macro">write!</span>(f, <span class="string">"pub(super) "</span>) |
| <a href=#2084 id=2084 data-nosnippet>2084</a> } <span class="kw">else </span>{ |
| <a href=#2085 id=2085 data-nosnippet>2085</a> <span class="macro">write!</span>(f, <span class="string">"pub(in ...) "</span>) |
| <a href=#2086 id=2086 data-nosnippet>2086</a> } |
| <a href=#2087 id=2087 data-nosnippet>2087</a> } |
| <a href=#2088 id=2088 data-nosnippet>2088</a> } |
| <a href=#2089 id=2089 data-nosnippet>2089</a>} |
| <a href=#2090 id=2090 data-nosnippet>2090</a> |
| <a href=#2091 id=2091 data-nosnippet>2091</a><span class="kw">pub trait </span>HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> { |
| <a href=#2092 id=2092 data-nosnippet>2092</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="lifetime">'db</span>>, store: <span class="kw-2">&</span>ExpressionStore) -> <span class="prelude-ty">Result</span>; |
| <a href=#2093 id=2093 data-nosnippet>2093</a>} |
| <a href=#2094 id=2094 data-nosnippet>2094</a> |
| <a href=#2095 id=2095 data-nosnippet>2095</a><span class="kw">impl</span><<span class="lifetime">'db</span>, T: <span class="question-mark">?</span>Sized + HirDisplayWithExpressionStore<<span class="lifetime">'db</span>>> HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> |
| <a href=#2096 id=2096 data-nosnippet>2096</a> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'_ </span>T |
| <a href=#2097 id=2097 data-nosnippet>2097</a>{ |
| <a href=#2098 id=2098 data-nosnippet>2098</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="lifetime">'db</span>>, store: <span class="kw-2">&</span>ExpressionStore) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2099 id=2099 data-nosnippet>2099</a> T::hir_fmt(<span class="kw-2">&**</span><span class="self">self</span>, f, store) |
| <a href=#2100 id=2100 data-nosnippet>2100</a> } |
| <a href=#2101 id=2101 data-nosnippet>2101</a>} |
| <a href=#2102 id=2102 data-nosnippet>2102</a> |
| <a href=#2103 id=2103 data-nosnippet>2103</a><span class="kw">pub fn </span>hir_display_with_store<<span class="lifetime">'a</span>, <span class="lifetime">'db</span>, T: HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> + <span class="lifetime">'a</span>>( |
| <a href=#2104 id=2104 data-nosnippet>2104</a> value: T, |
| <a href=#2105 id=2105 data-nosnippet>2105</a> store: <span class="kw-2">&</span><span class="lifetime">'a </span>ExpressionStore, |
| <a href=#2106 id=2106 data-nosnippet>2106</a>) -> <span class="kw">impl </span>HirDisplay<<span class="lifetime">'db</span>> + <span class="lifetime">'a </span>{ |
| <a href=#2107 id=2107 data-nosnippet>2107</a> ExpressionStoreAdapter(value, store) |
| <a href=#2108 id=2108 data-nosnippet>2108</a>} |
| <a href=#2109 id=2109 data-nosnippet>2109</a> |
| <a href=#2110 id=2110 data-nosnippet>2110</a><span class="kw">struct </span>ExpressionStoreAdapter<<span class="lifetime">'a</span>, T>(T, <span class="kw-2">&</span><span class="lifetime">'a </span>ExpressionStore); |
| <a href=#2111 id=2111 data-nosnippet>2111</a> |
| <a href=#2112 id=2112 data-nosnippet>2112</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T> ExpressionStoreAdapter<<span class="lifetime">'a</span>, T> { |
| <a href=#2113 id=2113 data-nosnippet>2113</a> <span class="kw">fn </span>wrap(store: <span class="kw-2">&</span><span class="lifetime">'a </span>ExpressionStore) -> <span class="kw">impl </span>Fn(T) -> ExpressionStoreAdapter<<span class="lifetime">'a</span>, T> { |
| <a href=#2114 id=2114 data-nosnippet>2114</a> <span class="kw">move </span>|value| ExpressionStoreAdapter(value, store) |
| <a href=#2115 id=2115 data-nosnippet>2115</a> } |
| <a href=#2116 id=2116 data-nosnippet>2116</a>} |
| <a href=#2117 id=2117 data-nosnippet>2117</a> |
| <a href=#2118 id=2118 data-nosnippet>2118</a><span class="kw">impl</span><<span class="lifetime">'db</span>, T: HirDisplayWithExpressionStore<<span class="lifetime">'db</span>>> HirDisplay<<span class="lifetime">'db</span>> <span class="kw">for </span>ExpressionStoreAdapter<<span class="lifetime">'_</span>, T> { |
| <a href=#2119 id=2119 data-nosnippet>2119</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="lifetime">'db</span>>) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2120 id=2120 data-nosnippet>2120</a> T::hir_fmt(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">0</span>, f, <span class="self">self</span>.<span class="number">1</span>) |
| <a href=#2121 id=2121 data-nosnippet>2121</a> } |
| <a href=#2122 id=2122 data-nosnippet>2122</a>} |
| <a href=#2123 id=2123 data-nosnippet>2123</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> <span class="kw">for </span>LifetimeRefId { |
| <a href=#2124 id=2124 data-nosnippet>2124</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="lifetime">'db</span>>, store: <span class="kw-2">&</span>ExpressionStore) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2125 id=2125 data-nosnippet>2125</a> <span class="kw">match </span><span class="kw-2">&</span>store[<span class="kw-2">*</span><span class="self">self</span>] { |
| <a href=#2126 id=2126 data-nosnippet>2126</a> LifetimeRef::Named(name) => <span class="macro">write!</span>(f, <span class="string">"{}"</span>, name.display(f.db, f.edition())), |
| <a href=#2127 id=2127 data-nosnippet>2127</a> LifetimeRef::Static => <span class="macro">write!</span>(f, <span class="string">"'static"</span>), |
| <a href=#2128 id=2128 data-nosnippet>2128</a> LifetimeRef::Placeholder => <span class="macro">write!</span>(f, <span class="string">"'_"</span>), |
| <a href=#2129 id=2129 data-nosnippet>2129</a> LifetimeRef::Error => <span class="macro">write!</span>(f, <span class="string">"'{{error}}"</span>), |
| <a href=#2130 id=2130 data-nosnippet>2130</a> <span class="kw-2">&</span>LifetimeRef::Param(lifetime_param_id) => { |
| <a href=#2131 id=2131 data-nosnippet>2131</a> <span class="kw">let </span>generic_params = f.db.generic_params(lifetime_param_id.parent); |
| <a href=#2132 id=2132 data-nosnippet>2132</a> <span class="macro">write!</span>( |
| <a href=#2133 id=2133 data-nosnippet>2133</a> f, |
| <a href=#2134 id=2134 data-nosnippet>2134</a> <span class="string">"{}"</span>, |
| <a href=#2135 id=2135 data-nosnippet>2135</a> generic_params[lifetime_param_id.local_id].name.display(f.db, f.edition()) |
| <a href=#2136 id=2136 data-nosnippet>2136</a> ) |
| <a href=#2137 id=2137 data-nosnippet>2137</a> } |
| <a href=#2138 id=2138 data-nosnippet>2138</a> } |
| <a href=#2139 id=2139 data-nosnippet>2139</a> } |
| <a href=#2140 id=2140 data-nosnippet>2140</a>} |
| <a href=#2141 id=2141 data-nosnippet>2141</a> |
| <a href=#2142 id=2142 data-nosnippet>2142</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> <span class="kw">for </span>TypeRefId { |
| <a href=#2143 id=2143 data-nosnippet>2143</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="lifetime">'db</span>>, store: <span class="kw-2">&</span>ExpressionStore) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2144 id=2144 data-nosnippet>2144</a> <span class="kw">match </span><span class="kw-2">&</span>store[<span class="kw-2">*</span><span class="self">self</span>] { |
| <a href=#2145 id=2145 data-nosnippet>2145</a> TypeRef::Never => <span class="macro">write!</span>(f, <span class="string">"!"</span>)<span class="question-mark">?</span>, |
| <a href=#2146 id=2146 data-nosnippet>2146</a> TypeRef::TypeParam(param) => { |
| <a href=#2147 id=2147 data-nosnippet>2147</a> <span class="kw">let </span>generic_params = f.db.generic_params(param.parent()); |
| <a href=#2148 id=2148 data-nosnippet>2148</a> <span class="kw">match </span>generic_params[param.local_id()].name() { |
| <a href=#2149 id=2149 data-nosnippet>2149</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=#2150 id=2150 data-nosnippet>2150</a> <span class="prelude-val">None </span>=> { |
| <a href=#2151 id=2151 data-nosnippet>2151</a> <span class="macro">write!</span>(f, <span class="string">"impl "</span>)<span class="question-mark">?</span>; |
| <a href=#2152 id=2152 data-nosnippet>2152</a> f.write_joined( |
| <a href=#2153 id=2153 data-nosnippet>2153</a> generic_params |
| <a href=#2154 id=2154 data-nosnippet>2154</a> .where_predicates() |
| <a href=#2155 id=2155 data-nosnippet>2155</a> .iter() |
| <a href=#2156 id=2156 data-nosnippet>2156</a> .filter_map(|it| <span class="kw">match </span>it { |
| <a href=#2157 id=2157 data-nosnippet>2157</a> WherePredicate::TypeBound { target, bound } |
| <a href=#2158 id=2158 data-nosnippet>2158</a> | WherePredicate::ForLifetime { lifetimes: <span class="kw">_</span>, target, bound } |
| <a href=#2159 id=2159 data-nosnippet>2159</a> <span class="kw">if </span><span class="macro">matches!</span>( |
| <a href=#2160 id=2160 data-nosnippet>2160</a> store[<span class="kw-2">*</span>target], |
| <a href=#2161 id=2161 data-nosnippet>2161</a> TypeRef::TypeParam(t) <span class="kw">if </span>t == <span class="kw-2">*</span>param |
| <a href=#2162 id=2162 data-nosnippet>2162</a> ) => |
| <a href=#2163 id=2163 data-nosnippet>2163</a> { |
| <a href=#2164 id=2164 data-nosnippet>2164</a> <span class="prelude-val">Some</span>(bound) |
| <a href=#2165 id=2165 data-nosnippet>2165</a> } |
| <a href=#2166 id=2166 data-nosnippet>2166</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#2167 id=2167 data-nosnippet>2167</a> }) |
| <a href=#2168 id=2168 data-nosnippet>2168</a> .map(ExpressionStoreAdapter::wrap(store)), |
| <a href=#2169 id=2169 data-nosnippet>2169</a> <span class="string">" + "</span>, |
| <a href=#2170 id=2170 data-nosnippet>2170</a> )<span class="question-mark">?</span>; |
| <a href=#2171 id=2171 data-nosnippet>2171</a> } |
| <a href=#2172 id=2172 data-nosnippet>2172</a> } |
| <a href=#2173 id=2173 data-nosnippet>2173</a> } |
| <a href=#2174 id=2174 data-nosnippet>2174</a> TypeRef::Placeholder => <span class="macro">write!</span>(f, <span class="string">"_"</span>)<span class="question-mark">?</span>, |
| <a href=#2175 id=2175 data-nosnippet>2175</a> TypeRef::Tuple(elems) => { |
| <a href=#2176 id=2176 data-nosnippet>2176</a> <span class="macro">write!</span>(f, <span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#2177 id=2177 data-nosnippet>2177</a> f.write_joined(elems.iter().map(ExpressionStoreAdapter::wrap(store)), <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#2178 id=2178 data-nosnippet>2178</a> <span class="kw">if </span>elems.len() == <span class="number">1 </span>{ |
| <a href=#2179 id=2179 data-nosnippet>2179</a> <span class="macro">write!</span>(f, <span class="string">","</span>)<span class="question-mark">?</span>; |
| <a href=#2180 id=2180 data-nosnippet>2180</a> } |
| <a href=#2181 id=2181 data-nosnippet>2181</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#2182 id=2182 data-nosnippet>2182</a> } |
| <a href=#2183 id=2183 data-nosnippet>2183</a> TypeRef::Path(path) => path.hir_fmt(f, store)<span class="question-mark">?</span>, |
| <a href=#2184 id=2184 data-nosnippet>2184</a> TypeRef::RawPtr(inner, mutability) => { |
| <a href=#2185 id=2185 data-nosnippet>2185</a> <span class="kw">let </span>mutability = <span class="kw">match </span>mutability { |
| <a href=#2186 id=2186 data-nosnippet>2186</a> hir_def::type_ref::Mutability::Shared => <span class="string">"*const "</span>, |
| <a href=#2187 id=2187 data-nosnippet>2187</a> hir_def::type_ref::Mutability::Mut => <span class="string">"*mut "</span>, |
| <a href=#2188 id=2188 data-nosnippet>2188</a> }; |
| <a href=#2189 id=2189 data-nosnippet>2189</a> <span class="macro">write!</span>(f, <span class="string">"{mutability}"</span>)<span class="question-mark">?</span>; |
| <a href=#2190 id=2190 data-nosnippet>2190</a> inner.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2191 id=2191 data-nosnippet>2191</a> } |
| <a href=#2192 id=2192 data-nosnippet>2192</a> TypeRef::Reference(ref_) => { |
| <a href=#2193 id=2193 data-nosnippet>2193</a> <span class="kw">let </span>mutability = <span class="kw">match </span>ref_.mutability { |
| <a href=#2194 id=2194 data-nosnippet>2194</a> hir_def::type_ref::Mutability::Shared => <span class="string">""</span>, |
| <a href=#2195 id=2195 data-nosnippet>2195</a> hir_def::type_ref::Mutability::Mut => <span class="string">"mut "</span>, |
| <a href=#2196 id=2196 data-nosnippet>2196</a> }; |
| <a href=#2197 id=2197 data-nosnippet>2197</a> <span class="macro">write!</span>(f, <span class="string">"&"</span>)<span class="question-mark">?</span>; |
| <a href=#2198 id=2198 data-nosnippet>2198</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(lifetime) = <span class="kw-2">&</span>ref_.lifetime { |
| <a href=#2199 id=2199 data-nosnippet>2199</a> lifetime.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2200 id=2200 data-nosnippet>2200</a> <span class="macro">write!</span>(f, <span class="string">" "</span>)<span class="question-mark">?</span>; |
| <a href=#2201 id=2201 data-nosnippet>2201</a> } |
| <a href=#2202 id=2202 data-nosnippet>2202</a> <span class="macro">write!</span>(f, <span class="string">"{mutability}"</span>)<span class="question-mark">?</span>; |
| <a href=#2203 id=2203 data-nosnippet>2203</a> ref_.ty.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2204 id=2204 data-nosnippet>2204</a> } |
| <a href=#2205 id=2205 data-nosnippet>2205</a> TypeRef::Array(array) => { |
| <a href=#2206 id=2206 data-nosnippet>2206</a> <span class="macro">write!</span>(f, <span class="string">"["</span>)<span class="question-mark">?</span>; |
| <a href=#2207 id=2207 data-nosnippet>2207</a> array.ty.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2208 id=2208 data-nosnippet>2208</a> <span class="macro">write!</span>(f, <span class="string">"; "</span>)<span class="question-mark">?</span>; |
| <a href=#2209 id=2209 data-nosnippet>2209</a> array.len.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2210 id=2210 data-nosnippet>2210</a> <span class="macro">write!</span>(f, <span class="string">"]"</span>)<span class="question-mark">?</span>; |
| <a href=#2211 id=2211 data-nosnippet>2211</a> } |
| <a href=#2212 id=2212 data-nosnippet>2212</a> TypeRef::Slice(inner) => { |
| <a href=#2213 id=2213 data-nosnippet>2213</a> <span class="macro">write!</span>(f, <span class="string">"["</span>)<span class="question-mark">?</span>; |
| <a href=#2214 id=2214 data-nosnippet>2214</a> inner.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2215 id=2215 data-nosnippet>2215</a> <span class="macro">write!</span>(f, <span class="string">"]"</span>)<span class="question-mark">?</span>; |
| <a href=#2216 id=2216 data-nosnippet>2216</a> } |
| <a href=#2217 id=2217 data-nosnippet>2217</a> TypeRef::Fn(fn_) => { |
| <a href=#2218 id=2218 data-nosnippet>2218</a> <span class="kw">if </span>fn_.is_unsafe { |
| <a href=#2219 id=2219 data-nosnippet>2219</a> <span class="macro">write!</span>(f, <span class="string">"unsafe "</span>)<span class="question-mark">?</span>; |
| <a href=#2220 id=2220 data-nosnippet>2220</a> } |
| <a href=#2221 id=2221 data-nosnippet>2221</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(abi) = <span class="kw-2">&</span>fn_.abi { |
| <a href=#2222 id=2222 data-nosnippet>2222</a> f.write_str(<span class="string">"extern \""</span>)<span class="question-mark">?</span>; |
| <a href=#2223 id=2223 data-nosnippet>2223</a> f.write_str(abi.as_str())<span class="question-mark">?</span>; |
| <a href=#2224 id=2224 data-nosnippet>2224</a> f.write_str(<span class="string">"\" "</span>)<span class="question-mark">?</span>; |
| <a href=#2225 id=2225 data-nosnippet>2225</a> } |
| <a href=#2226 id=2226 data-nosnippet>2226</a> <span class="macro">write!</span>(f, <span class="string">"fn("</span>)<span class="question-mark">?</span>; |
| <a href=#2227 id=2227 data-nosnippet>2227</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(((<span class="kw">_</span>, return_type), function_parameters)) = fn_.params.split_last() { |
| <a href=#2228 id=2228 data-nosnippet>2228</a> <span class="kw">for </span>index <span class="kw">in </span><span class="number">0</span>..function_parameters.len() { |
| <a href=#2229 id=2229 data-nosnippet>2229</a> <span class="kw">let </span>(param_name, param_type) = <span class="kw-2">&</span>function_parameters[index]; |
| <a href=#2230 id=2230 data-nosnippet>2230</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(name) = param_name { |
| <a href=#2231 id=2231 data-nosnippet>2231</a> <span class="macro">write!</span>(f, <span class="string">"{}: "</span>, name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#2232 id=2232 data-nosnippet>2232</a> } |
| <a href=#2233 id=2233 data-nosnippet>2233</a> |
| <a href=#2234 id=2234 data-nosnippet>2234</a> param_type.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2235 id=2235 data-nosnippet>2235</a> |
| <a href=#2236 id=2236 data-nosnippet>2236</a> <span class="kw">if </span><span class="macro">index !</span>= function_parameters.len() - <span class="number">1 </span>{ |
| <a href=#2237 id=2237 data-nosnippet>2237</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#2238 id=2238 data-nosnippet>2238</a> } |
| <a href=#2239 id=2239 data-nosnippet>2239</a> } |
| <a href=#2240 id=2240 data-nosnippet>2240</a> <span class="kw">if </span>fn_.is_varargs { |
| <a href=#2241 id=2241 data-nosnippet>2241</a> <span class="macro">write!</span>(f, <span class="string">"{}..."</span>, <span class="kw">if </span>fn_.params.len() == <span class="number">1 </span>{ <span class="string">"" </span>} <span class="kw">else </span>{ <span class="string">", " </span>})<span class="question-mark">?</span>; |
| <a href=#2242 id=2242 data-nosnippet>2242</a> } |
| <a href=#2243 id=2243 data-nosnippet>2243</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#2244 id=2244 data-nosnippet>2244</a> <span class="kw">match </span><span class="kw-2">&</span>store[<span class="kw-2">*</span>return_type] { |
| <a href=#2245 id=2245 data-nosnippet>2245</a> TypeRef::Tuple(tup) <span class="kw">if </span>tup.is_empty() => {} |
| <a href=#2246 id=2246 data-nosnippet>2246</a> <span class="kw">_ </span>=> { |
| <a href=#2247 id=2247 data-nosnippet>2247</a> <span class="macro">write!</span>(f, <span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#2248 id=2248 data-nosnippet>2248</a> return_type.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2249 id=2249 data-nosnippet>2249</a> } |
| <a href=#2250 id=2250 data-nosnippet>2250</a> } |
| <a href=#2251 id=2251 data-nosnippet>2251</a> } |
| <a href=#2252 id=2252 data-nosnippet>2252</a> } |
| <a href=#2253 id=2253 data-nosnippet>2253</a> TypeRef::ImplTrait(bounds) => { |
| <a href=#2254 id=2254 data-nosnippet>2254</a> <span class="macro">write!</span>(f, <span class="string">"impl "</span>)<span class="question-mark">?</span>; |
| <a href=#2255 id=2255 data-nosnippet>2255</a> f.write_joined(bounds.iter().map(ExpressionStoreAdapter::wrap(store)), <span class="string">" + "</span>)<span class="question-mark">?</span>; |
| <a href=#2256 id=2256 data-nosnippet>2256</a> } |
| <a href=#2257 id=2257 data-nosnippet>2257</a> TypeRef::DynTrait(bounds) => { |
| <a href=#2258 id=2258 data-nosnippet>2258</a> <span class="macro">write!</span>(f, <span class="string">"dyn "</span>)<span class="question-mark">?</span>; |
| <a href=#2259 id=2259 data-nosnippet>2259</a> f.write_joined(bounds.iter().map(ExpressionStoreAdapter::wrap(store)), <span class="string">" + "</span>)<span class="question-mark">?</span>; |
| <a href=#2260 id=2260 data-nosnippet>2260</a> } |
| <a href=#2261 id=2261 data-nosnippet>2261</a> TypeRef::Error => <span class="macro">write!</span>(f, <span class="string">"{{error}}"</span>)<span class="question-mark">?</span>, |
| <a href=#2262 id=2262 data-nosnippet>2262</a> } |
| <a href=#2263 id=2263 data-nosnippet>2263</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#2264 id=2264 data-nosnippet>2264</a> } |
| <a href=#2265 id=2265 data-nosnippet>2265</a>} |
| <a href=#2266 id=2266 data-nosnippet>2266</a> |
| <a href=#2267 id=2267 data-nosnippet>2267</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> <span class="kw">for </span>ConstRef { |
| <a href=#2268 id=2268 data-nosnippet>2268</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="lifetime">'db</span>>, _store: <span class="kw-2">&</span>ExpressionStore) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2269 id=2269 data-nosnippet>2269</a> <span class="comment">// FIXME |
| <a href=#2270 id=2270 data-nosnippet>2270</a> </span><span class="macro">write!</span>(f, <span class="string">"{{const}}"</span>)<span class="question-mark">?</span>; |
| <a href=#2271 id=2271 data-nosnippet>2271</a> |
| <a href=#2272 id=2272 data-nosnippet>2272</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#2273 id=2273 data-nosnippet>2273</a> } |
| <a href=#2274 id=2274 data-nosnippet>2274</a>} |
| <a href=#2275 id=2275 data-nosnippet>2275</a> |
| <a href=#2276 id=2276 data-nosnippet>2276</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> <span class="kw">for </span>TypeBound { |
| <a href=#2277 id=2277 data-nosnippet>2277</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="lifetime">'db</span>>, store: <span class="kw-2">&</span>ExpressionStore) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2278 id=2278 data-nosnippet>2278</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#2279 id=2279 data-nosnippet>2279</a> <span class="kw-2">&</span>TypeBound::Path(path, modifier) => { |
| <a href=#2280 id=2280 data-nosnippet>2280</a> <span class="kw">match </span>modifier { |
| <a href=#2281 id=2281 data-nosnippet>2281</a> TraitBoundModifier::None => (), |
| <a href=#2282 id=2282 data-nosnippet>2282</a> TraitBoundModifier::Maybe => <span class="macro">write!</span>(f, <span class="string">"?"</span>)<span class="question-mark">?</span>, |
| <a href=#2283 id=2283 data-nosnippet>2283</a> } |
| <a href=#2284 id=2284 data-nosnippet>2284</a> store[path].hir_fmt(f, store) |
| <a href=#2285 id=2285 data-nosnippet>2285</a> } |
| <a href=#2286 id=2286 data-nosnippet>2286</a> TypeBound::Lifetime(lifetime) => lifetime.hir_fmt(f, store), |
| <a href=#2287 id=2287 data-nosnippet>2287</a> TypeBound::ForLifetime(lifetimes, path) => { |
| <a href=#2288 id=2288 data-nosnippet>2288</a> <span class="kw">let </span>edition = f.edition(); |
| <a href=#2289 id=2289 data-nosnippet>2289</a> <span class="macro">write!</span>( |
| <a href=#2290 id=2290 data-nosnippet>2290</a> f, |
| <a href=#2291 id=2291 data-nosnippet>2291</a> <span class="string">"for<{}> "</span>, |
| <a href=#2292 id=2292 data-nosnippet>2292</a> lifetimes.iter().map(|it| it.display(f.db, edition)).format(<span class="string">", "</span>) |
| <a href=#2293 id=2293 data-nosnippet>2293</a> )<span class="question-mark">?</span>; |
| <a href=#2294 id=2294 data-nosnippet>2294</a> store[<span class="kw-2">*</span>path].hir_fmt(f, store) |
| <a href=#2295 id=2295 data-nosnippet>2295</a> } |
| <a href=#2296 id=2296 data-nosnippet>2296</a> TypeBound::Use(args) => { |
| <a href=#2297 id=2297 data-nosnippet>2297</a> <span class="macro">write!</span>(f, <span class="string">"use<"</span>)<span class="question-mark">?</span>; |
| <a href=#2298 id=2298 data-nosnippet>2298</a> <span class="kw">let </span>edition = f.edition(); |
| <a href=#2299 id=2299 data-nosnippet>2299</a> <span class="kw">let </span>last = args.len().saturating_sub(<span class="number">1</span>); |
| <a href=#2300 id=2300 data-nosnippet>2300</a> <span class="kw">for </span>(idx, arg) <span class="kw">in </span>args.iter().enumerate() { |
| <a href=#2301 id=2301 data-nosnippet>2301</a> <span class="kw">match </span>arg { |
| <a href=#2302 id=2302 data-nosnippet>2302</a> UseArgRef::Lifetime(lt) => lt.hir_fmt(f, store)<span class="question-mark">?</span>, |
| <a href=#2303 id=2303 data-nosnippet>2303</a> UseArgRef::Name(n) => <span class="macro">write!</span>(f, <span class="string">"{}"</span>, n.display(f.db, edition))<span class="question-mark">?</span>, |
| <a href=#2304 id=2304 data-nosnippet>2304</a> } |
| <a href=#2305 id=2305 data-nosnippet>2305</a> <span class="kw">if </span><span class="macro">idx !</span>= last { |
| <a href=#2306 id=2306 data-nosnippet>2306</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#2307 id=2307 data-nosnippet>2307</a> } |
| <a href=#2308 id=2308 data-nosnippet>2308</a> } |
| <a href=#2309 id=2309 data-nosnippet>2309</a> <span class="macro">write!</span>(f, <span class="string">"> "</span>) |
| <a href=#2310 id=2310 data-nosnippet>2310</a> } |
| <a href=#2311 id=2311 data-nosnippet>2311</a> TypeBound::Error => <span class="macro">write!</span>(f, <span class="string">"{{error}}"</span>), |
| <a href=#2312 id=2312 data-nosnippet>2312</a> } |
| <a href=#2313 id=2313 data-nosnippet>2313</a> } |
| <a href=#2314 id=2314 data-nosnippet>2314</a>} |
| <a href=#2315 id=2315 data-nosnippet>2315</a> |
| <a href=#2316 id=2316 data-nosnippet>2316</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> <span class="kw">for </span>Path { |
| <a href=#2317 id=2317 data-nosnippet>2317</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="lifetime">'db</span>>, store: <span class="kw-2">&</span>ExpressionStore) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2318 id=2318 data-nosnippet>2318</a> <span class="kw">match </span>(<span class="self">self</span>.type_anchor(), <span class="self">self</span>.kind()) { |
| <a href=#2319 id=2319 data-nosnippet>2319</a> (<span class="prelude-val">Some</span>(anchor), <span class="kw">_</span>) => { |
| <a href=#2320 id=2320 data-nosnippet>2320</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#2321 id=2321 data-nosnippet>2321</a> anchor.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2322 id=2322 data-nosnippet>2322</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#2323 id=2323 data-nosnippet>2323</a> } |
| <a href=#2324 id=2324 data-nosnippet>2324</a> (<span class="kw">_</span>, PathKind::Plain) => {} |
| <a href=#2325 id=2325 data-nosnippet>2325</a> (<span class="kw">_</span>, PathKind::Abs) => {} |
| <a href=#2326 id=2326 data-nosnippet>2326</a> (<span class="kw">_</span>, PathKind::Crate) => <span class="macro">write!</span>(f, <span class="string">"crate"</span>)<span class="question-mark">?</span>, |
| <a href=#2327 id=2327 data-nosnippet>2327</a> (<span class="kw">_</span>, <span class="kw-2">&</span>PathKind::SELF) => <span class="macro">write!</span>(f, <span class="string">"self"</span>)<span class="question-mark">?</span>, |
| <a href=#2328 id=2328 data-nosnippet>2328</a> (<span class="kw">_</span>, PathKind::Super(n)) => { |
| <a href=#2329 id=2329 data-nosnippet>2329</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="kw-2">*</span>n { |
| <a href=#2330 id=2330 data-nosnippet>2330</a> <span class="kw">if </span>i > <span class="number">0 </span>{ |
| <a href=#2331 id=2331 data-nosnippet>2331</a> <span class="macro">write!</span>(f, <span class="string">"::"</span>)<span class="question-mark">?</span>; |
| <a href=#2332 id=2332 data-nosnippet>2332</a> } |
| <a href=#2333 id=2333 data-nosnippet>2333</a> <span class="macro">write!</span>(f, <span class="string">"super"</span>)<span class="question-mark">?</span>; |
| <a href=#2334 id=2334 data-nosnippet>2334</a> } |
| <a href=#2335 id=2335 data-nosnippet>2335</a> } |
| <a href=#2336 id=2336 data-nosnippet>2336</a> (<span class="kw">_</span>, PathKind::DollarCrate(id)) => { |
| <a href=#2337 id=2337 data-nosnippet>2337</a> <span class="comment">// Resolve `$crate` to the crate's display name. |
| <a href=#2338 id=2338 data-nosnippet>2338</a> // FIXME: should use the dependency name instead if available, but that depends on |
| <a href=#2339 id=2339 data-nosnippet>2339</a> // the crate invoking `HirDisplay` |
| <a href=#2340 id=2340 data-nosnippet>2340</a> </span><span class="kw">let </span>crate_data = id.extra_data(f.db); |
| <a href=#2341 id=2341 data-nosnippet>2341</a> <span class="kw">let </span>name = crate_data |
| <a href=#2342 id=2342 data-nosnippet>2342</a> .display_name |
| <a href=#2343 id=2343 data-nosnippet>2343</a> .as_ref() |
| <a href=#2344 id=2344 data-nosnippet>2344</a> .map(|name| (<span class="kw-2">*</span>name.canonical_name()).clone()) |
| <a href=#2345 id=2345 data-nosnippet>2345</a> .unwrap_or(sym::dollar_crate); |
| <a href=#2346 id=2346 data-nosnippet>2346</a> <span class="macro">write!</span>(f, <span class="string">"{name}"</span>)<span class="question-mark">? |
| <a href=#2347 id=2347 data-nosnippet>2347</a> </span>} |
| <a href=#2348 id=2348 data-nosnippet>2348</a> } |
| <a href=#2349 id=2349 data-nosnippet>2349</a> |
| <a href=#2350 id=2350 data-nosnippet>2350</a> <span class="comment">// Convert trait's `Self` bound back to the surface syntax. Note there is no associated |
| <a href=#2351 id=2351 data-nosnippet>2351</a> // trait, so there can only be one path segment that `has_self_type`. The `Self` type |
| <a href=#2352 id=2352 data-nosnippet>2352</a> // itself can contain further qualified path through, which will be handled by recursive |
| <a href=#2353 id=2353 data-nosnippet>2353</a> // `hir_fmt`s. |
| <a href=#2354 id=2354 data-nosnippet>2354</a> // |
| <a href=#2355 id=2355 data-nosnippet>2355</a> // `trait_mod::Trait<Self = type_mod::Type, Args>::Assoc` |
| <a href=#2356 id=2356 data-nosnippet>2356</a> // => |
| <a href=#2357 id=2357 data-nosnippet>2357</a> // `<type_mod::Type as trait_mod::Trait<Args>>::Assoc` |
| <a href=#2358 id=2358 data-nosnippet>2358</a> </span><span class="kw">let </span>trait_self_ty = <span class="self">self</span>.segments().iter().find_map(|seg| { |
| <a href=#2359 id=2359 data-nosnippet>2359</a> <span class="kw">let </span>generic_args = seg.args_and_bindings<span class="question-mark">?</span>; |
| <a href=#2360 id=2360 data-nosnippet>2360</a> generic_args.has_self_type.then(|| <span class="kw-2">&</span>generic_args.args[<span class="number">0</span>]) |
| <a href=#2361 id=2361 data-nosnippet>2361</a> }); |
| <a href=#2362 id=2362 data-nosnippet>2362</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(ty) = trait_self_ty { |
| <a href=#2363 id=2363 data-nosnippet>2363</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#2364 id=2364 data-nosnippet>2364</a> ty.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2365 id=2365 data-nosnippet>2365</a> <span class="macro">write!</span>(f, <span class="string">" as "</span>)<span class="question-mark">?</span>; |
| <a href=#2366 id=2366 data-nosnippet>2366</a> <span class="comment">// Now format the path of the trait... |
| <a href=#2367 id=2367 data-nosnippet>2367</a> </span>} |
| <a href=#2368 id=2368 data-nosnippet>2368</a> |
| <a href=#2369 id=2369 data-nosnippet>2369</a> <span class="kw">for </span>(seg_idx, segment) <span class="kw">in </span><span class="self">self</span>.segments().iter().enumerate() { |
| <a href=#2370 id=2370 data-nosnippet>2370</a> <span class="kw">if </span>!<span class="macro">matches!</span>(<span class="self">self</span>.kind(), PathKind::Plain) || seg_idx > <span class="number">0 </span>{ |
| <a href=#2371 id=2371 data-nosnippet>2371</a> <span class="macro">write!</span>(f, <span class="string">"::"</span>)<span class="question-mark">?</span>; |
| <a href=#2372 id=2372 data-nosnippet>2372</a> } |
| <a href=#2373 id=2373 data-nosnippet>2373</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, segment.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#2374 id=2374 data-nosnippet>2374</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(generic_args) = segment.args_and_bindings { |
| <a href=#2375 id=2375 data-nosnippet>2375</a> <span class="comment">// We should be in type context, so format as `Foo<Bar>` instead of `Foo::<Bar>`. |
| <a href=#2376 id=2376 data-nosnippet>2376</a> // Do we actually format expressions? |
| <a href=#2377 id=2377 data-nosnippet>2377</a> </span><span class="kw">match </span>generic_args.parenthesized { |
| <a href=#2378 id=2378 data-nosnippet>2378</a> hir_def::expr_store::path::GenericArgsParentheses::ReturnTypeNotation => { |
| <a href=#2379 id=2379 data-nosnippet>2379</a> <span class="macro">write!</span>(f, <span class="string">"(..)"</span>)<span class="question-mark">?</span>; |
| <a href=#2380 id=2380 data-nosnippet>2380</a> } |
| <a href=#2381 id=2381 data-nosnippet>2381</a> hir_def::expr_store::path::GenericArgsParentheses::ParenSugar => { |
| <a href=#2382 id=2382 data-nosnippet>2382</a> <span class="comment">// First argument will be a tuple, which already includes the parentheses. |
| <a href=#2383 id=2383 data-nosnippet>2383</a> // If the tuple only contains 1 item, write it manually to avoid the trailing `,`. |
| <a href=#2384 id=2384 data-nosnippet>2384</a> </span><span class="kw">let </span>tuple = <span class="kw">match </span>generic_args.args[<span class="number">0</span>] { |
| <a href=#2385 id=2385 data-nosnippet>2385</a> hir_def::expr_store::path::GenericArg::Type(ty) => <span class="kw">match </span><span class="kw-2">&</span>store[ty] { |
| <a href=#2386 id=2386 data-nosnippet>2386</a> TypeRef::Tuple(it) => <span class="prelude-val">Some</span>(it), |
| <a href=#2387 id=2387 data-nosnippet>2387</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#2388 id=2388 data-nosnippet>2388</a> }, |
| <a href=#2389 id=2389 data-nosnippet>2389</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#2390 id=2390 data-nosnippet>2390</a> }; |
| <a href=#2391 id=2391 data-nosnippet>2391</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(v) = tuple { |
| <a href=#2392 id=2392 data-nosnippet>2392</a> <span class="kw">if </span>v.len() == <span class="number">1 </span>{ |
| <a href=#2393 id=2393 data-nosnippet>2393</a> <span class="macro">write!</span>(f, <span class="string">"("</span>)<span class="question-mark">?</span>; |
| <a href=#2394 id=2394 data-nosnippet>2394</a> v[<span class="number">0</span>].hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2395 id=2395 data-nosnippet>2395</a> <span class="macro">write!</span>(f, <span class="string">")"</span>)<span class="question-mark">?</span>; |
| <a href=#2396 id=2396 data-nosnippet>2396</a> } <span class="kw">else </span>{ |
| <a href=#2397 id=2397 data-nosnippet>2397</a> generic_args.args[<span class="number">0</span>].hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2398 id=2398 data-nosnippet>2398</a> } |
| <a href=#2399 id=2399 data-nosnippet>2399</a> } |
| <a href=#2400 id=2400 data-nosnippet>2400</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(ret) = generic_args.bindings[<span class="number">0</span>].type_ref |
| <a href=#2401 id=2401 data-nosnippet>2401</a> && !<span class="macro">matches!</span>(<span class="kw-2">&</span>store[ret], TypeRef::Tuple(v) <span class="kw">if </span>v.is_empty()) |
| <a href=#2402 id=2402 data-nosnippet>2402</a> { |
| <a href=#2403 id=2403 data-nosnippet>2403</a> <span class="macro">write!</span>(f, <span class="string">" -> "</span>)<span class="question-mark">?</span>; |
| <a href=#2404 id=2404 data-nosnippet>2404</a> ret.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2405 id=2405 data-nosnippet>2405</a> } |
| <a href=#2406 id=2406 data-nosnippet>2406</a> } |
| <a href=#2407 id=2407 data-nosnippet>2407</a> hir_def::expr_store::path::GenericArgsParentheses::No => { |
| <a href=#2408 id=2408 data-nosnippet>2408</a> <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <a href=#2409 id=2409 data-nosnippet>2409</a> <span class="comment">// Skip the `Self` bound if exists. It's handled outside the loop. |
| <a href=#2410 id=2410 data-nosnippet>2410</a> </span><span class="kw">for </span>arg <span class="kw">in </span><span class="kw-2">&</span>generic_args.args[generic_args.has_self_type <span class="kw">as </span>usize..] { |
| <a href=#2411 id=2411 data-nosnippet>2411</a> <span class="kw">if </span>first { |
| <a href=#2412 id=2412 data-nosnippet>2412</a> first = <span class="bool-val">false</span>; |
| <a href=#2413 id=2413 data-nosnippet>2413</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#2414 id=2414 data-nosnippet>2414</a> } <span class="kw">else </span>{ |
| <a href=#2415 id=2415 data-nosnippet>2415</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#2416 id=2416 data-nosnippet>2416</a> } |
| <a href=#2417 id=2417 data-nosnippet>2417</a> arg.hir_fmt(f, store)<span class="question-mark">?</span>; |
| <a href=#2418 id=2418 data-nosnippet>2418</a> } |
| <a href=#2419 id=2419 data-nosnippet>2419</a> <span class="kw">for </span>binding <span class="kw">in </span>generic_args.bindings.iter() { |
| <a href=#2420 id=2420 data-nosnippet>2420</a> <span class="kw">if </span>first { |
| <a href=#2421 id=2421 data-nosnippet>2421</a> first = <span class="bool-val">false</span>; |
| <a href=#2422 id=2422 data-nosnippet>2422</a> <span class="macro">write!</span>(f, <span class="string">"<"</span>)<span class="question-mark">?</span>; |
| <a href=#2423 id=2423 data-nosnippet>2423</a> } <span class="kw">else </span>{ |
| <a href=#2424 id=2424 data-nosnippet>2424</a> <span class="macro">write!</span>(f, <span class="string">", "</span>)<span class="question-mark">?</span>; |
| <a href=#2425 id=2425 data-nosnippet>2425</a> } |
| <a href=#2426 id=2426 data-nosnippet>2426</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, binding.name.display(f.db, f.edition()))<span class="question-mark">?</span>; |
| <a href=#2427 id=2427 data-nosnippet>2427</a> <span class="kw">match </span><span class="kw-2">&</span>binding.type_ref { |
| <a href=#2428 id=2428 data-nosnippet>2428</a> <span class="prelude-val">Some</span>(ty) => { |
| <a href=#2429 id=2429 data-nosnippet>2429</a> <span class="macro">write!</span>(f, <span class="string">" = "</span>)<span class="question-mark">?</span>; |
| <a href=#2430 id=2430 data-nosnippet>2430</a> ty.hir_fmt(f, store)<span class="question-mark">? |
| <a href=#2431 id=2431 data-nosnippet>2431</a> </span>} |
| <a href=#2432 id=2432 data-nosnippet>2432</a> <span class="prelude-val">None </span>=> { |
| <a href=#2433 id=2433 data-nosnippet>2433</a> <span class="macro">write!</span>(f, <span class="string">": "</span>)<span class="question-mark">?</span>; |
| <a href=#2434 id=2434 data-nosnippet>2434</a> f.write_joined( |
| <a href=#2435 id=2435 data-nosnippet>2435</a> binding |
| <a href=#2436 id=2436 data-nosnippet>2436</a> .bounds |
| <a href=#2437 id=2437 data-nosnippet>2437</a> .iter() |
| <a href=#2438 id=2438 data-nosnippet>2438</a> .map(ExpressionStoreAdapter::wrap(store)), |
| <a href=#2439 id=2439 data-nosnippet>2439</a> <span class="string">" + "</span>, |
| <a href=#2440 id=2440 data-nosnippet>2440</a> )<span class="question-mark">?</span>; |
| <a href=#2441 id=2441 data-nosnippet>2441</a> } |
| <a href=#2442 id=2442 data-nosnippet>2442</a> } |
| <a href=#2443 id=2443 data-nosnippet>2443</a> } |
| <a href=#2444 id=2444 data-nosnippet>2444</a> |
| <a href=#2445 id=2445 data-nosnippet>2445</a> <span class="comment">// There may be no generic arguments to print, in case of a trait having only a |
| <a href=#2446 id=2446 data-nosnippet>2446</a> // single `Self` bound which is converted to `<Ty as Trait>::Assoc`. |
| <a href=#2447 id=2447 data-nosnippet>2447</a> </span><span class="kw">if </span>!first { |
| <a href=#2448 id=2448 data-nosnippet>2448</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#2449 id=2449 data-nosnippet>2449</a> } |
| <a href=#2450 id=2450 data-nosnippet>2450</a> |
| <a href=#2451 id=2451 data-nosnippet>2451</a> <span class="comment">// Current position: `<Ty as Trait<Args>|` |
| <a href=#2452 id=2452 data-nosnippet>2452</a> </span><span class="kw">if </span>generic_args.has_self_type { |
| <a href=#2453 id=2453 data-nosnippet>2453</a> <span class="macro">write!</span>(f, <span class="string">">"</span>)<span class="question-mark">?</span>; |
| <a href=#2454 id=2454 data-nosnippet>2454</a> } |
| <a href=#2455 id=2455 data-nosnippet>2455</a> } |
| <a href=#2456 id=2456 data-nosnippet>2456</a> } |
| <a href=#2457 id=2457 data-nosnippet>2457</a> } |
| <a href=#2458 id=2458 data-nosnippet>2458</a> } |
| <a href=#2459 id=2459 data-nosnippet>2459</a> |
| <a href=#2460 id=2460 data-nosnippet>2460</a> <span class="prelude-val">Ok</span>(()) |
| <a href=#2461 id=2461 data-nosnippet>2461</a> } |
| <a href=#2462 id=2462 data-nosnippet>2462</a>} |
| <a href=#2463 id=2463 data-nosnippet>2463</a> |
| <a href=#2464 id=2464 data-nosnippet>2464</a><span class="kw">impl</span><<span class="lifetime">'db</span>> HirDisplayWithExpressionStore<<span class="lifetime">'db</span>> <span class="kw">for </span>hir_def::expr_store::path::GenericArg { |
| <a href=#2465 id=2465 data-nosnippet>2465</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="lifetime">'db</span>>, store: <span class="kw-2">&</span>ExpressionStore) -> <span class="prelude-ty">Result </span>{ |
| <a href=#2466 id=2466 data-nosnippet>2466</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#2467 id=2467 data-nosnippet>2467</a> hir_def::expr_store::path::GenericArg::Type(ty) => ty.hir_fmt(f, store), |
| <a href=#2468 id=2468 data-nosnippet>2468</a> hir_def::expr_store::path::GenericArg::Const(_c) => { |
| <a href=#2469 id=2469 data-nosnippet>2469</a> <span class="comment">// write!(f, "{}", c.display(f.db, f.edition())) |
| <a href=#2470 id=2470 data-nosnippet>2470</a> </span><span class="macro">write!</span>(f, <span class="string">"<expr>"</span>) |
| <a href=#2471 id=2471 data-nosnippet>2471</a> } |
| <a href=#2472 id=2472 data-nosnippet>2472</a> hir_def::expr_store::path::GenericArg::Lifetime(lifetime) => lifetime.hir_fmt(f, store), |
| <a href=#2473 id=2473 data-nosnippet>2473</a> } |
| <a href=#2474 id=2474 data-nosnippet>2474</a> } |
| <a href=#2475 id=2475 data-nosnippet>2475</a>} |
| </code></pre></div></section></main></body></html> |
