| <!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/syntax/src/ast/token_ext.rs`."><title>token_ext.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="syntax" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.0 (254b59607 2026-01-19)" data-channel="1.93.0" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.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-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">syntax/ast/</div>token_ext.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="doccomment">//! There are many AstNodes, but only a few tokens, so we hand-write them here. |
| <a href=#2 id=2 data-nosnippet>2</a> |
| <a href=#3 id=3 data-nosnippet>3</a></span><span class="kw">use </span>std::ops::Range; |
| <a href=#4 id=4 data-nosnippet>4</a><span class="kw">use </span>std::{borrow::Cow, num::ParseIntError}; |
| <a href=#5 id=5 data-nosnippet>5</a> |
| <a href=#6 id=6 data-nosnippet>6</a><span class="kw">use </span>rustc_literal_escaper::{ |
| <a href=#7 id=7 data-nosnippet>7</a> EscapeError, MixedUnit, unescape_byte, unescape_byte_str, unescape_c_str, unescape_char, |
| <a href=#8 id=8 data-nosnippet>8</a> unescape_str, |
| <a href=#9 id=9 data-nosnippet>9</a>}; |
| <a href=#10 id=10 data-nosnippet>10</a><span class="kw">use </span>stdx::always; |
| <a href=#11 id=11 data-nosnippet>11</a> |
| <a href=#12 id=12 data-nosnippet>12</a><span class="kw">use crate</span>::{ |
| <a href=#13 id=13 data-nosnippet>13</a> TextRange, TextSize, |
| <a href=#14 id=14 data-nosnippet>14</a> ast::{<span class="self">self</span>, AstToken}, |
| <a href=#15 id=15 data-nosnippet>15</a>}; |
| <a href=#16 id=16 data-nosnippet>16</a> |
| <a href=#17 id=17 data-nosnippet>17</a><span class="kw">impl </span>ast::Comment { |
| <a href=#18 id=18 data-nosnippet>18</a> <span class="kw">pub fn </span>kind(<span class="kw-2">&</span><span class="self">self</span>) -> CommentKind { |
| <a href=#19 id=19 data-nosnippet>19</a> CommentKind::from_text(<span class="self">self</span>.text()) |
| <a href=#20 id=20 data-nosnippet>20</a> } |
| <a href=#21 id=21 data-nosnippet>21</a> |
| <a href=#22 id=22 data-nosnippet>22</a> <span class="kw">pub fn </span>is_doc(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#23 id=23 data-nosnippet>23</a> <span class="self">self</span>.kind().doc.is_some() |
| <a href=#24 id=24 data-nosnippet>24</a> } |
| <a href=#25 id=25 data-nosnippet>25</a> |
| <a href=#26 id=26 data-nosnippet>26</a> <span class="kw">pub fn </span>is_inner(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#27 id=27 data-nosnippet>27</a> <span class="self">self</span>.kind().doc == <span class="prelude-val">Some</span>(CommentPlacement::Inner) |
| <a href=#28 id=28 data-nosnippet>28</a> } |
| <a href=#29 id=29 data-nosnippet>29</a> |
| <a href=#30 id=30 data-nosnippet>30</a> <span class="kw">pub fn </span>is_outer(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#31 id=31 data-nosnippet>31</a> <span class="self">self</span>.kind().doc == <span class="prelude-val">Some</span>(CommentPlacement::Outer) |
| <a href=#32 id=32 data-nosnippet>32</a> } |
| <a href=#33 id=33 data-nosnippet>33</a> |
| <a href=#34 id=34 data-nosnippet>34</a> <span class="kw">pub fn </span>prefix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str { |
| <a href=#35 id=35 data-nosnippet>35</a> <span class="kw">let </span><span class="kw-2">&</span>(prefix, _kind) = CommentKind::BY_PREFIX |
| <a href=#36 id=36 data-nosnippet>36</a> .iter() |
| <a href=#37 id=37 data-nosnippet>37</a> .find(|<span class="kw-2">&</span>(prefix, kind)| <span class="self">self</span>.kind() == <span class="kw-2">*</span>kind && <span class="self">self</span>.text().starts_with(prefix)) |
| <a href=#38 id=38 data-nosnippet>38</a> .unwrap(); |
| <a href=#39 id=39 data-nosnippet>39</a> prefix |
| <a href=#40 id=40 data-nosnippet>40</a> } |
| <a href=#41 id=41 data-nosnippet>41</a> |
| <a href=#42 id=42 data-nosnippet>42</a> <span class="doccomment">/// Returns the textual content of a doc comment node as a single string with prefix and suffix |
| <a href=#43 id=43 data-nosnippet>43</a> /// removed, plus the offset of the returned string from the beginning of the comment. |
| <a href=#44 id=44 data-nosnippet>44</a> </span><span class="kw">pub fn </span>doc_comment(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><(<span class="kw-2">&</span>str, TextSize)> { |
| <a href=#45 id=45 data-nosnippet>45</a> <span class="kw">let </span>kind = <span class="self">self</span>.kind(); |
| <a href=#46 id=46 data-nosnippet>46</a> <span class="kw">match </span>kind { |
| <a href=#47 id=47 data-nosnippet>47</a> CommentKind { shape, doc: <span class="prelude-val">Some</span>(<span class="kw">_</span>) } => { |
| <a href=#48 id=48 data-nosnippet>48</a> <span class="kw">let </span>prefix = kind.prefix(); |
| <a href=#49 id=49 data-nosnippet>49</a> <span class="kw">let </span>text = <span class="kw-2">&</span><span class="self">self</span>.text()[prefix.len()..]; |
| <a href=#50 id=50 data-nosnippet>50</a> <span class="kw">let </span>text = <span class="kw">if </span>shape == CommentShape::Block { |
| <a href=#51 id=51 data-nosnippet>51</a> text.strip_suffix(<span class="string">"*/"</span>).unwrap_or(text) |
| <a href=#52 id=52 data-nosnippet>52</a> } <span class="kw">else </span>{ |
| <a href=#53 id=53 data-nosnippet>53</a> text |
| <a href=#54 id=54 data-nosnippet>54</a> }; |
| <a href=#55 id=55 data-nosnippet>55</a> <span class="prelude-val">Some</span>((text, TextSize::of(prefix))) |
| <a href=#56 id=56 data-nosnippet>56</a> } |
| <a href=#57 id=57 data-nosnippet>57</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| <a href=#58 id=58 data-nosnippet>58</a> } |
| <a href=#59 id=59 data-nosnippet>59</a> } |
| <a href=#60 id=60 data-nosnippet>60</a>} |
| <a href=#61 id=61 data-nosnippet>61</a> |
| <a href=#62 id=62 data-nosnippet>62</a><span class="attr">#[derive(Debug, PartialEq, Eq, Clone, Copy)] |
| <a href=#63 id=63 data-nosnippet>63</a></span><span class="kw">pub struct </span>CommentKind { |
| <a href=#64 id=64 data-nosnippet>64</a> <span class="kw">pub </span>shape: CommentShape, |
| <a href=#65 id=65 data-nosnippet>65</a> <span class="kw">pub </span>doc: <span class="prelude-ty">Option</span><CommentPlacement>, |
| <a href=#66 id=66 data-nosnippet>66</a>} |
| <a href=#67 id=67 data-nosnippet>67</a> |
| <a href=#68 id=68 data-nosnippet>68</a><span class="attr">#[derive(Debug, PartialEq, Eq, Clone, Copy)] |
| <a href=#69 id=69 data-nosnippet>69</a></span><span class="kw">pub enum </span>CommentShape { |
| <a href=#70 id=70 data-nosnippet>70</a> Line, |
| <a href=#71 id=71 data-nosnippet>71</a> Block, |
| <a href=#72 id=72 data-nosnippet>72</a>} |
| <a href=#73 id=73 data-nosnippet>73</a> |
| <a href=#74 id=74 data-nosnippet>74</a><span class="kw">impl </span>CommentShape { |
| <a href=#75 id=75 data-nosnippet>75</a> <span class="kw">pub fn </span>is_line(<span class="self">self</span>) -> bool { |
| <a href=#76 id=76 data-nosnippet>76</a> <span class="self">self </span>== CommentShape::Line |
| <a href=#77 id=77 data-nosnippet>77</a> } |
| <a href=#78 id=78 data-nosnippet>78</a> |
| <a href=#79 id=79 data-nosnippet>79</a> <span class="kw">pub fn </span>is_block(<span class="self">self</span>) -> bool { |
| <a href=#80 id=80 data-nosnippet>80</a> <span class="self">self </span>== CommentShape::Block |
| <a href=#81 id=81 data-nosnippet>81</a> } |
| <a href=#82 id=82 data-nosnippet>82</a>} |
| <a href=#83 id=83 data-nosnippet>83</a> |
| <a href=#84 id=84 data-nosnippet>84</a><span class="attr">#[derive(Debug, PartialEq, Eq, Clone, Copy)] |
| <a href=#85 id=85 data-nosnippet>85</a></span><span class="kw">pub enum </span>CommentPlacement { |
| <a href=#86 id=86 data-nosnippet>86</a> Inner, |
| <a href=#87 id=87 data-nosnippet>87</a> Outer, |
| <a href=#88 id=88 data-nosnippet>88</a>} |
| <a href=#89 id=89 data-nosnippet>89</a> |
| <a href=#90 id=90 data-nosnippet>90</a><span class="kw">impl </span>CommentKind { |
| <a href=#91 id=91 data-nosnippet>91</a> <span class="kw">const </span>BY_PREFIX: [(<span class="kw-2">&</span><span class="lifetime">'static </span>str, CommentKind); <span class="number">9</span>] = [ |
| <a href=#92 id=92 data-nosnippet>92</a> (<span class="string">"/**/"</span>, CommentKind { shape: CommentShape::Block, doc: <span class="prelude-val">None </span>}), |
| <a href=#93 id=93 data-nosnippet>93</a> (<span class="string">"/***"</span>, CommentKind { shape: CommentShape::Block, doc: <span class="prelude-val">None </span>}), |
| <a href=#94 id=94 data-nosnippet>94</a> (<span class="string">"////"</span>, CommentKind { shape: CommentShape::Line, doc: <span class="prelude-val">None </span>}), |
| <a href=#95 id=95 data-nosnippet>95</a> (<span class="string">"///"</span>, CommentKind { shape: CommentShape::Line, doc: <span class="prelude-val">Some</span>(CommentPlacement::Outer) }), |
| <a href=#96 id=96 data-nosnippet>96</a> (<span class="string">"//!"</span>, CommentKind { shape: CommentShape::Line, doc: <span class="prelude-val">Some</span>(CommentPlacement::Inner) }), |
| <a href=#97 id=97 data-nosnippet>97</a> (<span class="string">"/**"</span>, CommentKind { shape: CommentShape::Block, doc: <span class="prelude-val">Some</span>(CommentPlacement::Outer) }), |
| <a href=#98 id=98 data-nosnippet>98</a> (<span class="string">"/*!"</span>, CommentKind { shape: CommentShape::Block, doc: <span class="prelude-val">Some</span>(CommentPlacement::Inner) }), |
| <a href=#99 id=99 data-nosnippet>99</a> (<span class="string">"//"</span>, CommentKind { shape: CommentShape::Line, doc: <span class="prelude-val">None </span>}), |
| <a href=#100 id=100 data-nosnippet>100</a> (<span class="string">"/*"</span>, CommentKind { shape: CommentShape::Block, doc: <span class="prelude-val">None </span>}), |
| <a href=#101 id=101 data-nosnippet>101</a> ]; |
| <a href=#102 id=102 data-nosnippet>102</a> |
| <a href=#103 id=103 data-nosnippet>103</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>from_text(text: <span class="kw-2">&</span>str) -> CommentKind { |
| <a href=#104 id=104 data-nosnippet>104</a> <span class="kw">let </span><span class="kw-2">&</span>(_prefix, kind) = CommentKind::BY_PREFIX |
| <a href=#105 id=105 data-nosnippet>105</a> .iter() |
| <a href=#106 id=106 data-nosnippet>106</a> .find(|<span class="kw-2">&</span>(prefix, _kind)| text.starts_with(prefix)) |
| <a href=#107 id=107 data-nosnippet>107</a> .unwrap(); |
| <a href=#108 id=108 data-nosnippet>108</a> kind |
| <a href=#109 id=109 data-nosnippet>109</a> } |
| <a href=#110 id=110 data-nosnippet>110</a> |
| <a href=#111 id=111 data-nosnippet>111</a> <span class="kw">pub fn </span>prefix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str { |
| <a href=#112 id=112 data-nosnippet>112</a> <span class="kw">let </span><span class="kw-2">&</span>(prefix, <span class="kw">_</span>) = |
| <a href=#113 id=113 data-nosnippet>113</a> CommentKind::BY_PREFIX.iter().rev().find(|(<span class="kw">_</span>, kind)| kind == <span class="self">self</span>).unwrap(); |
| <a href=#114 id=114 data-nosnippet>114</a> prefix |
| <a href=#115 id=115 data-nosnippet>115</a> } |
| <a href=#116 id=116 data-nosnippet>116</a>} |
| <a href=#117 id=117 data-nosnippet>117</a> |
| <a href=#118 id=118 data-nosnippet>118</a><span class="kw">impl </span>ast::Whitespace { |
| <a href=#119 id=119 data-nosnippet>119</a> <span class="kw">pub fn </span>spans_multiple_lines(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#120 id=120 data-nosnippet>120</a> <span class="kw">let </span>text = <span class="self">self</span>.text(); |
| <a href=#121 id=121 data-nosnippet>121</a> text.find(<span class="string">'\n'</span>).is_some_and(|idx| text[idx + <span class="number">1</span>..].contains(<span class="string">'\n'</span>)) |
| <a href=#122 id=122 data-nosnippet>122</a> } |
| <a href=#123 id=123 data-nosnippet>123</a>} |
| <a href=#124 id=124 data-nosnippet>124</a> |
| <a href=#125 id=125 data-nosnippet>125</a><span class="attr">#[derive(Debug)] |
| <a href=#126 id=126 data-nosnippet>126</a></span><span class="kw">pub struct </span>QuoteOffsets { |
| <a href=#127 id=127 data-nosnippet>127</a> <span class="kw">pub </span>quotes: (TextRange, TextRange), |
| <a href=#128 id=128 data-nosnippet>128</a> <span class="kw">pub </span>contents: TextRange, |
| <a href=#129 id=129 data-nosnippet>129</a>} |
| <a href=#130 id=130 data-nosnippet>130</a> |
| <a href=#131 id=131 data-nosnippet>131</a><span class="kw">impl </span>QuoteOffsets { |
| <a href=#132 id=132 data-nosnippet>132</a> <span class="kw">fn </span>new(literal: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Option</span><QuoteOffsets> { |
| <a href=#133 id=133 data-nosnippet>133</a> <span class="kw">let </span>left_quote = literal.find(<span class="string">'"'</span>)<span class="question-mark">?</span>; |
| <a href=#134 id=134 data-nosnippet>134</a> <span class="kw">let </span>right_quote = literal.rfind(<span class="string">'"'</span>)<span class="question-mark">?</span>; |
| <a href=#135 id=135 data-nosnippet>135</a> <span class="kw">if </span>left_quote == right_quote { |
| <a href=#136 id=136 data-nosnippet>136</a> <span class="comment">// `literal` only contains one quote |
| <a href=#137 id=137 data-nosnippet>137</a> </span><span class="kw">return </span><span class="prelude-val">None</span>; |
| <a href=#138 id=138 data-nosnippet>138</a> } |
| <a href=#139 id=139 data-nosnippet>139</a> |
| <a href=#140 id=140 data-nosnippet>140</a> <span class="kw">let </span>start = TextSize::from(<span class="number">0</span>); |
| <a href=#141 id=141 data-nosnippet>141</a> <span class="kw">let </span>left_quote = TextSize::try_from(left_quote).unwrap() + TextSize::of(<span class="string">'"'</span>); |
| <a href=#142 id=142 data-nosnippet>142</a> <span class="kw">let </span>right_quote = TextSize::try_from(right_quote).unwrap(); |
| <a href=#143 id=143 data-nosnippet>143</a> <span class="kw">let </span>end = TextSize::of(literal); |
| <a href=#144 id=144 data-nosnippet>144</a> |
| <a href=#145 id=145 data-nosnippet>145</a> <span class="kw">let </span>res = QuoteOffsets { |
| <a href=#146 id=146 data-nosnippet>146</a> quotes: (TextRange::new(start, left_quote), TextRange::new(right_quote, end)), |
| <a href=#147 id=147 data-nosnippet>147</a> contents: TextRange::new(left_quote, right_quote), |
| <a href=#148 id=148 data-nosnippet>148</a> }; |
| <a href=#149 id=149 data-nosnippet>149</a> <span class="prelude-val">Some</span>(res) |
| <a href=#150 id=150 data-nosnippet>150</a> } |
| <a href=#151 id=151 data-nosnippet>151</a>} |
| <a href=#152 id=152 data-nosnippet>152</a> |
| <a href=#153 id=153 data-nosnippet>153</a><span class="kw">pub trait </span>IsString: AstToken { |
| <a href=#154 id=154 data-nosnippet>154</a> <span class="kw">fn </span>raw_prefix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str; |
| <a href=#155 id=155 data-nosnippet>155</a> <span class="kw">fn </span>unescape(<span class="kw-2">&</span><span class="self">self</span>, s: <span class="kw-2">&</span>str, callback: <span class="kw">impl </span>FnMut(Range<usize>, <span class="prelude-ty">Result</span><char, EscapeError>)); |
| <a href=#156 id=156 data-nosnippet>156</a> <span class="kw">fn </span>is_raw(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <a href=#157 id=157 data-nosnippet>157</a> <span class="self">self</span>.text().starts_with(<span class="self">self</span>.raw_prefix()) |
| <a href=#158 id=158 data-nosnippet>158</a> } |
| <a href=#159 id=159 data-nosnippet>159</a> <span class="kw">fn </span>quote_offsets(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><QuoteOffsets> { |
| <a href=#160 id=160 data-nosnippet>160</a> <span class="kw">let </span>text = <span class="self">self</span>.text(); |
| <a href=#161 id=161 data-nosnippet>161</a> <span class="kw">let </span>offsets = QuoteOffsets::new(text)<span class="question-mark">?</span>; |
| <a href=#162 id=162 data-nosnippet>162</a> <span class="kw">let </span>o = <span class="self">self</span>.syntax().text_range().start(); |
| <a href=#163 id=163 data-nosnippet>163</a> <span class="kw">let </span>offsets = QuoteOffsets { |
| <a href=#164 id=164 data-nosnippet>164</a> quotes: (offsets.quotes.<span class="number">0 </span>+ o, offsets.quotes.<span class="number">1 </span>+ o), |
| <a href=#165 id=165 data-nosnippet>165</a> contents: offsets.contents + o, |
| <a href=#166 id=166 data-nosnippet>166</a> }; |
| <a href=#167 id=167 data-nosnippet>167</a> <span class="prelude-val">Some</span>(offsets) |
| <a href=#168 id=168 data-nosnippet>168</a> } |
| <a href=#169 id=169 data-nosnippet>169</a> <span class="kw">fn </span>text_range_between_quotes(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><TextRange> { |
| <a href=#170 id=170 data-nosnippet>170</a> <span class="self">self</span>.quote_offsets().map(|it| it.contents) |
| <a href=#171 id=171 data-nosnippet>171</a> } |
| <a href=#172 id=172 data-nosnippet>172</a> <span class="kw">fn </span>text_without_quotes(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>str { |
| <a href=#173 id=173 data-nosnippet>173</a> <span class="kw">let </span>text = <span class="self">self</span>.text(); |
| <a href=#174 id=174 data-nosnippet>174</a> <span class="kw">let </span><span class="prelude-val">Some</span>(offsets) = <span class="self">self</span>.text_range_between_quotes() <span class="kw">else </span>{ <span class="kw">return </span>text }; |
| <a href=#175 id=175 data-nosnippet>175</a> <span class="kw-2">&</span>text[offsets - <span class="self">self</span>.syntax().text_range().start()] |
| <a href=#176 id=176 data-nosnippet>176</a> } |
| <a href=#177 id=177 data-nosnippet>177</a> <span class="kw">fn </span>open_quote_text_range(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><TextRange> { |
| <a href=#178 id=178 data-nosnippet>178</a> <span class="self">self</span>.quote_offsets().map(|it| it.quotes.<span class="number">0</span>) |
| <a href=#179 id=179 data-nosnippet>179</a> } |
| <a href=#180 id=180 data-nosnippet>180</a> <span class="kw">fn </span>close_quote_text_range(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><TextRange> { |
| <a href=#181 id=181 data-nosnippet>181</a> <span class="self">self</span>.quote_offsets().map(|it| it.quotes.<span class="number">1</span>) |
| <a href=#182 id=182 data-nosnippet>182</a> } |
| <a href=#183 id=183 data-nosnippet>183</a> <span class="kw">fn </span>escaped_char_ranges(<span class="kw-2">&</span><span class="self">self</span>, cb: <span class="kw-2">&mut </span><span class="kw">dyn </span>FnMut(TextRange, <span class="prelude-ty">Result</span><char, EscapeError>)) { |
| <a href=#184 id=184 data-nosnippet>184</a> <span class="kw">let </span><span class="prelude-val">Some</span>(text_range_no_quotes) = <span class="self">self</span>.text_range_between_quotes() <span class="kw">else </span>{ <span class="kw">return </span>}; |
| <a href=#185 id=185 data-nosnippet>185</a> |
| <a href=#186 id=186 data-nosnippet>186</a> <span class="kw">let </span>start = <span class="self">self</span>.syntax().text_range().start(); |
| <a href=#187 id=187 data-nosnippet>187</a> <span class="kw">let </span>text = <span class="kw-2">&</span><span class="self">self</span>.text()[text_range_no_quotes - start]; |
| <a href=#188 id=188 data-nosnippet>188</a> <span class="kw">let </span>offset = text_range_no_quotes.start() - start; |
| <a href=#189 id=189 data-nosnippet>189</a> |
| <a href=#190 id=190 data-nosnippet>190</a> <span class="self">self</span>.unescape(text, <span class="kw-2">&mut </span>|range: Range<usize>, unescaped_char| { |
| <a href=#191 id=191 data-nosnippet>191</a> <span class="kw">if let </span><span class="prelude-val">Some</span>((s, e)) = range.start.try_into().ok().zip(range.end.try_into().ok()) { |
| <a href=#192 id=192 data-nosnippet>192</a> cb(TextRange::new(s, e) + offset, unescaped_char); |
| <a href=#193 id=193 data-nosnippet>193</a> } |
| <a href=#194 id=194 data-nosnippet>194</a> }); |
| <a href=#195 id=195 data-nosnippet>195</a> } |
| <a href=#196 id=196 data-nosnippet>196</a> <span class="kw">fn </span>map_range_up(<span class="kw-2">&</span><span class="self">self</span>, range: TextRange) -> <span class="prelude-ty">Option</span><TextRange> { |
| <a href=#197 id=197 data-nosnippet>197</a> <span class="kw">let </span>contents_range = <span class="self">self</span>.text_range_between_quotes()<span class="question-mark">?</span>; |
| <a href=#198 id=198 data-nosnippet>198</a> <span class="kw">if </span><span class="macro">always!</span>(TextRange::up_to(contents_range.len()).contains_range(range)) { |
| <a href=#199 id=199 data-nosnippet>199</a> <span class="prelude-val">Some</span>(range + contents_range.start()) |
| <a href=#200 id=200 data-nosnippet>200</a> } <span class="kw">else </span>{ |
| <a href=#201 id=201 data-nosnippet>201</a> <span class="prelude-val">None |
| <a href=#202 id=202 data-nosnippet>202</a> </span>} |
| <a href=#203 id=203 data-nosnippet>203</a> } |
| <a href=#204 id=204 data-nosnippet>204</a> <span class="kw">fn </span>map_offset_down(<span class="kw-2">&</span><span class="self">self</span>, offset: TextSize) -> <span class="prelude-ty">Option</span><TextSize> { |
| <a href=#205 id=205 data-nosnippet>205</a> <span class="kw">let </span>contents_range = <span class="self">self</span>.text_range_between_quotes()<span class="question-mark">?</span>; |
| <a href=#206 id=206 data-nosnippet>206</a> offset.checked_sub(contents_range.start()) |
| <a href=#207 id=207 data-nosnippet>207</a> } |
| <a href=#208 id=208 data-nosnippet>208</a>} |
| <a href=#209 id=209 data-nosnippet>209</a> |
| <a href=#210 id=210 data-nosnippet>210</a><span class="kw">impl </span>IsString <span class="kw">for </span>ast::String { |
| <a href=#211 id=211 data-nosnippet>211</a> <span class="kw">fn </span>raw_prefix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str { |
| <a href=#212 id=212 data-nosnippet>212</a> <span class="string">"r" |
| <a href=#213 id=213 data-nosnippet>213</a> </span>} |
| <a href=#214 id=214 data-nosnippet>214</a> <span class="kw">fn </span>unescape(<span class="kw-2">&</span><span class="self">self</span>, s: <span class="kw-2">&</span>str, cb: <span class="kw">impl </span>FnMut(Range<usize>, <span class="prelude-ty">Result</span><char, EscapeError>)) { |
| <a href=#215 id=215 data-nosnippet>215</a> unescape_str(s, cb) |
| <a href=#216 id=216 data-nosnippet>216</a> } |
| <a href=#217 id=217 data-nosnippet>217</a>} |
| <a href=#218 id=218 data-nosnippet>218</a> |
| <a href=#219 id=219 data-nosnippet>219</a><span class="kw">impl </span>ast::String { |
| <a href=#220 id=220 data-nosnippet>220</a> <span class="kw">pub fn </span>value(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Cow<<span class="lifetime">'_</span>, str>, EscapeError> { |
| <a href=#221 id=221 data-nosnippet>221</a> <span class="kw">let </span>text = <span class="self">self</span>.text(); |
| <a href=#222 id=222 data-nosnippet>222</a> <span class="kw">let </span>text_range = <span class="self">self</span>.text_range_between_quotes().ok_or(EscapeError::LoneSlash)<span class="question-mark">?</span>; |
| <a href=#223 id=223 data-nosnippet>223</a> <span class="kw">let </span>text = <span class="kw-2">&</span>text[text_range - <span class="self">self</span>.syntax().text_range().start()]; |
| <a href=#224 id=224 data-nosnippet>224</a> <span class="kw">if </span><span class="self">self</span>.is_raw() { |
| <a href=#225 id=225 data-nosnippet>225</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(Cow::Borrowed(text)); |
| <a href=#226 id=226 data-nosnippet>226</a> } |
| <a href=#227 id=227 data-nosnippet>227</a> |
| <a href=#228 id=228 data-nosnippet>228</a> <span class="kw">let </span><span class="kw-2">mut </span>buf = String::new(); |
| <a href=#229 id=229 data-nosnippet>229</a> <span class="kw">let </span><span class="kw-2">mut </span>prev_end = <span class="number">0</span>; |
| <a href=#230 id=230 data-nosnippet>230</a> <span class="kw">let </span><span class="kw-2">mut </span>has_error = <span class="prelude-val">None</span>; |
| <a href=#231 id=231 data-nosnippet>231</a> unescape_str(text, |char_range, unescaped_char| { |
| <a href=#232 id=232 data-nosnippet>232</a> <span class="kw">match </span>(unescaped_char, buf.capacity() == <span class="number">0</span>) { |
| <a href=#233 id=233 data-nosnippet>233</a> (<span class="prelude-val">Ok</span>(c), <span class="bool-val">false</span>) => buf.push(c), |
| <a href=#234 id=234 data-nosnippet>234</a> (<span class="prelude-val">Ok</span>(<span class="kw">_</span>), <span class="bool-val">true</span>) <span class="kw">if </span>char_range.len() == <span class="number">1 </span>&& char_range.start == prev_end => { |
| <a href=#235 id=235 data-nosnippet>235</a> prev_end = char_range.end |
| <a href=#236 id=236 data-nosnippet>236</a> } |
| <a href=#237 id=237 data-nosnippet>237</a> (<span class="prelude-val">Ok</span>(c), <span class="bool-val">true</span>) => { |
| <a href=#238 id=238 data-nosnippet>238</a> buf.reserve_exact(text.len()); |
| <a href=#239 id=239 data-nosnippet>239</a> buf.push_str(<span class="kw-2">&</span>text[..prev_end]); |
| <a href=#240 id=240 data-nosnippet>240</a> buf.push(c); |
| <a href=#241 id=241 data-nosnippet>241</a> } |
| <a href=#242 id=242 data-nosnippet>242</a> (<span class="prelude-val">Err</span>(e), <span class="kw">_</span>) => has_error = <span class="prelude-val">Some</span>(e), |
| <a href=#243 id=243 data-nosnippet>243</a> } |
| <a href=#244 id=244 data-nosnippet>244</a> }); |
| <a href=#245 id=245 data-nosnippet>245</a> |
| <a href=#246 id=246 data-nosnippet>246</a> <span class="kw">match </span>(has_error, buf.capacity() == <span class="number">0</span>) { |
| <a href=#247 id=247 data-nosnippet>247</a> (<span class="prelude-val">Some</span>(e), <span class="kw">_</span>) => <span class="prelude-val">Err</span>(e), |
| <a href=#248 id=248 data-nosnippet>248</a> (<span class="prelude-val">None</span>, <span class="bool-val">true</span>) => <span class="prelude-val">Ok</span>(Cow::Borrowed(text)), |
| <a href=#249 id=249 data-nosnippet>249</a> (<span class="prelude-val">None</span>, <span class="bool-val">false</span>) => <span class="prelude-val">Ok</span>(Cow::Owned(buf)), |
| <a href=#250 id=250 data-nosnippet>250</a> } |
| <a href=#251 id=251 data-nosnippet>251</a> } |
| <a href=#252 id=252 data-nosnippet>252</a>} |
| <a href=#253 id=253 data-nosnippet>253</a> |
| <a href=#254 id=254 data-nosnippet>254</a><span class="kw">impl </span>IsString <span class="kw">for </span>ast::ByteString { |
| <a href=#255 id=255 data-nosnippet>255</a> <span class="kw">fn </span>raw_prefix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str { |
| <a href=#256 id=256 data-nosnippet>256</a> <span class="string">"br" |
| <a href=#257 id=257 data-nosnippet>257</a> </span>} |
| <a href=#258 id=258 data-nosnippet>258</a> <span class="kw">fn </span>unescape(<span class="kw-2">&</span><span class="self">self</span>, s: <span class="kw-2">&</span>str, <span class="kw-2">mut </span>callback: <span class="kw">impl </span>FnMut(Range<usize>, <span class="prelude-ty">Result</span><char, EscapeError>)) { |
| <a href=#259 id=259 data-nosnippet>259</a> unescape_byte_str(s, |range, res| callback(range, res.map(char::from))) |
| <a href=#260 id=260 data-nosnippet>260</a> } |
| <a href=#261 id=261 data-nosnippet>261</a>} |
| <a href=#262 id=262 data-nosnippet>262</a> |
| <a href=#263 id=263 data-nosnippet>263</a><span class="kw">impl </span>ast::ByteString { |
| <a href=#264 id=264 data-nosnippet>264</a> <span class="kw">pub fn </span>value(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Cow<<span class="lifetime">'_</span>, [u8]>, EscapeError> { |
| <a href=#265 id=265 data-nosnippet>265</a> <span class="kw">let </span>text = <span class="self">self</span>.text(); |
| <a href=#266 id=266 data-nosnippet>266</a> <span class="kw">let </span>text_range = <span class="self">self</span>.text_range_between_quotes().ok_or(EscapeError::LoneSlash)<span class="question-mark">?</span>; |
| <a href=#267 id=267 data-nosnippet>267</a> <span class="kw">let </span>text = <span class="kw-2">&</span>text[text_range - <span class="self">self</span>.syntax().text_range().start()]; |
| <a href=#268 id=268 data-nosnippet>268</a> <span class="kw">if </span><span class="self">self</span>.is_raw() { |
| <a href=#269 id=269 data-nosnippet>269</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(Cow::Borrowed(text.as_bytes())); |
| <a href=#270 id=270 data-nosnippet>270</a> } |
| <a href=#271 id=271 data-nosnippet>271</a> |
| <a href=#272 id=272 data-nosnippet>272</a> <span class="kw">let </span><span class="kw-2">mut </span>buf: Vec<u8> = Vec::new(); |
| <a href=#273 id=273 data-nosnippet>273</a> <span class="kw">let </span><span class="kw-2">mut </span>prev_end = <span class="number">0</span>; |
| <a href=#274 id=274 data-nosnippet>274</a> <span class="kw">let </span><span class="kw-2">mut </span>has_error = <span class="prelude-val">None</span>; |
| <a href=#275 id=275 data-nosnippet>275</a> unescape_byte_str(text, |char_range, unescaped_byte| { |
| <a href=#276 id=276 data-nosnippet>276</a> <span class="kw">match </span>(unescaped_byte, buf.capacity() == <span class="number">0</span>) { |
| <a href=#277 id=277 data-nosnippet>277</a> (<span class="prelude-val">Ok</span>(b), <span class="bool-val">false</span>) => buf.push(b), |
| <a href=#278 id=278 data-nosnippet>278</a> (<span class="prelude-val">Ok</span>(<span class="kw">_</span>), <span class="bool-val">true</span>) <span class="kw">if </span>char_range.len() == <span class="number">1 </span>&& char_range.start == prev_end => { |
| <a href=#279 id=279 data-nosnippet>279</a> prev_end = char_range.end |
| <a href=#280 id=280 data-nosnippet>280</a> } |
| <a href=#281 id=281 data-nosnippet>281</a> (<span class="prelude-val">Ok</span>(b), <span class="bool-val">true</span>) => { |
| <a href=#282 id=282 data-nosnippet>282</a> buf.reserve_exact(text.len()); |
| <a href=#283 id=283 data-nosnippet>283</a> buf.extend_from_slice(<span class="kw-2">&</span>text.as_bytes()[..prev_end]); |
| <a href=#284 id=284 data-nosnippet>284</a> buf.push(b); |
| <a href=#285 id=285 data-nosnippet>285</a> } |
| <a href=#286 id=286 data-nosnippet>286</a> (<span class="prelude-val">Err</span>(e), <span class="kw">_</span>) => has_error = <span class="prelude-val">Some</span>(e), |
| <a href=#287 id=287 data-nosnippet>287</a> } |
| <a href=#288 id=288 data-nosnippet>288</a> }); |
| <a href=#289 id=289 data-nosnippet>289</a> |
| <a href=#290 id=290 data-nosnippet>290</a> <span class="kw">match </span>(has_error, buf.capacity() == <span class="number">0</span>) { |
| <a href=#291 id=291 data-nosnippet>291</a> (<span class="prelude-val">Some</span>(e), <span class="kw">_</span>) => <span class="prelude-val">Err</span>(e), |
| <a href=#292 id=292 data-nosnippet>292</a> (<span class="prelude-val">None</span>, <span class="bool-val">true</span>) => <span class="prelude-val">Ok</span>(Cow::Borrowed(text.as_bytes())), |
| <a href=#293 id=293 data-nosnippet>293</a> (<span class="prelude-val">None</span>, <span class="bool-val">false</span>) => <span class="prelude-val">Ok</span>(Cow::Owned(buf)), |
| <a href=#294 id=294 data-nosnippet>294</a> } |
| <a href=#295 id=295 data-nosnippet>295</a> } |
| <a href=#296 id=296 data-nosnippet>296</a>} |
| <a href=#297 id=297 data-nosnippet>297</a> |
| <a href=#298 id=298 data-nosnippet>298</a><span class="kw">impl </span>IsString <span class="kw">for </span>ast::CString { |
| <a href=#299 id=299 data-nosnippet>299</a> <span class="kw">fn </span>raw_prefix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str { |
| <a href=#300 id=300 data-nosnippet>300</a> <span class="string">"cr" |
| <a href=#301 id=301 data-nosnippet>301</a> </span>} |
| <a href=#302 id=302 data-nosnippet>302</a> <span class="comment">// NOTE: This method should only be used for highlighting ranges. The unescaped |
| <a href=#303 id=303 data-nosnippet>303</a> // char/byte is not used. For simplicity, we return an arbitrary placeholder char. |
| <a href=#304 id=304 data-nosnippet>304</a> </span><span class="kw">fn </span>unescape(<span class="kw-2">&</span><span class="self">self</span>, s: <span class="kw-2">&</span>str, <span class="kw-2">mut </span>callback: <span class="kw">impl </span>FnMut(Range<usize>, <span class="prelude-ty">Result</span><char, EscapeError>)) { |
| <a href=#305 id=305 data-nosnippet>305</a> unescape_c_str(s, |range, _res| callback(range, <span class="prelude-val">Ok</span>(<span class="string">'_'</span>))) |
| <a href=#306 id=306 data-nosnippet>306</a> } |
| <a href=#307 id=307 data-nosnippet>307</a>} |
| <a href=#308 id=308 data-nosnippet>308</a> |
| <a href=#309 id=309 data-nosnippet>309</a><span class="kw">impl </span>ast::CString { |
| <a href=#310 id=310 data-nosnippet>310</a> <span class="kw">pub fn </span>value(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Cow<<span class="lifetime">'_</span>, [u8]>, EscapeError> { |
| <a href=#311 id=311 data-nosnippet>311</a> <span class="kw">let </span>text = <span class="self">self</span>.text(); |
| <a href=#312 id=312 data-nosnippet>312</a> <span class="kw">let </span>text_range = <span class="self">self</span>.text_range_between_quotes().ok_or(EscapeError::LoneSlash)<span class="question-mark">?</span>; |
| <a href=#313 id=313 data-nosnippet>313</a> <span class="kw">let </span>text = <span class="kw-2">&</span>text[text_range - <span class="self">self</span>.syntax().text_range().start()]; |
| <a href=#314 id=314 data-nosnippet>314</a> <span class="kw">if </span><span class="self">self</span>.is_raw() { |
| <a href=#315 id=315 data-nosnippet>315</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(Cow::Borrowed(text.as_bytes())); |
| <a href=#316 id=316 data-nosnippet>316</a> } |
| <a href=#317 id=317 data-nosnippet>317</a> |
| <a href=#318 id=318 data-nosnippet>318</a> <span class="kw">let </span><span class="kw-2">mut </span>buf = Vec::new(); |
| <a href=#319 id=319 data-nosnippet>319</a> <span class="kw">let </span><span class="kw-2">mut </span>prev_end = <span class="number">0</span>; |
| <a href=#320 id=320 data-nosnippet>320</a> <span class="kw">let </span><span class="kw-2">mut </span>has_error = <span class="prelude-val">None</span>; |
| <a href=#321 id=321 data-nosnippet>321</a> <span class="kw">let </span>extend_unit = |buf: <span class="kw-2">&mut </span>Vec<u8>, unit: MixedUnit| <span class="kw">match </span>unit { |
| <a href=#322 id=322 data-nosnippet>322</a> MixedUnit::Char(c) => buf.extend(c.encode_utf8(<span class="kw-2">&mut </span>[<span class="number">0</span>; <span class="number">4</span>]).as_bytes()), |
| <a href=#323 id=323 data-nosnippet>323</a> MixedUnit::HighByte(b) => buf.push(b), |
| <a href=#324 id=324 data-nosnippet>324</a> }; |
| <a href=#325 id=325 data-nosnippet>325</a> unescape_c_str(text, |char_range, unescaped| <span class="kw">match </span>(unescaped, buf.capacity() == <span class="number">0</span>) { |
| <a href=#326 id=326 data-nosnippet>326</a> (<span class="prelude-val">Ok</span>(u), <span class="bool-val">false</span>) => extend_unit(<span class="kw-2">&mut </span>buf, u), |
| <a href=#327 id=327 data-nosnippet>327</a> (<span class="prelude-val">Ok</span>(<span class="kw">_</span>), <span class="bool-val">true</span>) <span class="kw">if </span>char_range.len() == <span class="number">1 </span>&& char_range.start == prev_end => { |
| <a href=#328 id=328 data-nosnippet>328</a> prev_end = char_range.end |
| <a href=#329 id=329 data-nosnippet>329</a> } |
| <a href=#330 id=330 data-nosnippet>330</a> (<span class="prelude-val">Ok</span>(u), <span class="bool-val">true</span>) => { |
| <a href=#331 id=331 data-nosnippet>331</a> buf.reserve_exact(text.len()); |
| <a href=#332 id=332 data-nosnippet>332</a> buf.extend(<span class="kw-2">&</span>text.as_bytes()[..prev_end]); |
| <a href=#333 id=333 data-nosnippet>333</a> extend_unit(<span class="kw-2">&mut </span>buf, u); |
| <a href=#334 id=334 data-nosnippet>334</a> } |
| <a href=#335 id=335 data-nosnippet>335</a> (<span class="prelude-val">Err</span>(e), <span class="kw">_</span>) => has_error = <span class="prelude-val">Some</span>(e), |
| <a href=#336 id=336 data-nosnippet>336</a> }); |
| <a href=#337 id=337 data-nosnippet>337</a> |
| <a href=#338 id=338 data-nosnippet>338</a> <span class="kw">match </span>(has_error, buf.capacity() == <span class="number">0</span>) { |
| <a href=#339 id=339 data-nosnippet>339</a> (<span class="prelude-val">Some</span>(e), <span class="kw">_</span>) => <span class="prelude-val">Err</span>(e), |
| <a href=#340 id=340 data-nosnippet>340</a> (<span class="prelude-val">None</span>, <span class="bool-val">true</span>) => <span class="prelude-val">Ok</span>(Cow::Borrowed(text.as_bytes())), |
| <a href=#341 id=341 data-nosnippet>341</a> (<span class="prelude-val">None</span>, <span class="bool-val">false</span>) => <span class="prelude-val">Ok</span>(Cow::Owned(buf)), |
| <a href=#342 id=342 data-nosnippet>342</a> } |
| <a href=#343 id=343 data-nosnippet>343</a> } |
| <a href=#344 id=344 data-nosnippet>344</a>} |
| <a href=#345 id=345 data-nosnippet>345</a> |
| <a href=#346 id=346 data-nosnippet>346</a><span class="kw">impl </span>ast::IntNumber { |
| <a href=#347 id=347 data-nosnippet>347</a> <span class="kw">pub fn </span>radix(<span class="kw-2">&</span><span class="self">self</span>) -> Radix { |
| <a href=#348 id=348 data-nosnippet>348</a> <span class="kw">match </span><span class="self">self</span>.text().get(..<span class="number">2</span>).unwrap_or_default() { |
| <a href=#349 id=349 data-nosnippet>349</a> <span class="string">"0b" </span>=> Radix::Binary, |
| <a href=#350 id=350 data-nosnippet>350</a> <span class="string">"0o" </span>=> Radix::Octal, |
| <a href=#351 id=351 data-nosnippet>351</a> <span class="string">"0x" </span>=> Radix::Hexadecimal, |
| <a href=#352 id=352 data-nosnippet>352</a> <span class="kw">_ </span>=> Radix::Decimal, |
| <a href=#353 id=353 data-nosnippet>353</a> } |
| <a href=#354 id=354 data-nosnippet>354</a> } |
| <a href=#355 id=355 data-nosnippet>355</a> |
| <a href=#356 id=356 data-nosnippet>356</a> <span class="kw">pub fn </span>split_into_parts(<span class="kw-2">&</span><span class="self">self</span>) -> (<span class="kw-2">&</span>str, <span class="kw-2">&</span>str, <span class="kw-2">&</span>str) { |
| <a href=#357 id=357 data-nosnippet>357</a> <span class="kw">let </span>radix = <span class="self">self</span>.radix(); |
| <a href=#358 id=358 data-nosnippet>358</a> <span class="kw">let </span>(prefix, <span class="kw-2">mut </span>text) = <span class="self">self</span>.text().split_at(radix.prefix_len()); |
| <a href=#359 id=359 data-nosnippet>359</a> |
| <a href=#360 id=360 data-nosnippet>360</a> <span class="kw">let </span>is_suffix_start: <span class="kw">fn</span>(<span class="kw-2">&</span>(usize, char)) -> bool = <span class="kw">match </span>radix { |
| <a href=#361 id=361 data-nosnippet>361</a> Radix::Hexadecimal => |(<span class="kw">_</span>, c)| <span class="macro">matches!</span>(c, <span class="string">'g'</span>..=<span class="string">'z' </span>| <span class="string">'G'</span>..=<span class="string">'Z'</span>), |
| <a href=#362 id=362 data-nosnippet>362</a> <span class="kw">_ </span>=> |(<span class="kw">_</span>, c)| c.is_ascii_alphabetic(), |
| <a href=#363 id=363 data-nosnippet>363</a> }; |
| <a href=#364 id=364 data-nosnippet>364</a> |
| <a href=#365 id=365 data-nosnippet>365</a> <span class="kw">let </span><span class="kw-2">mut </span>suffix = <span class="string">""</span>; |
| <a href=#366 id=366 data-nosnippet>366</a> <span class="kw">if let </span><span class="prelude-val">Some</span>((suffix_start, <span class="kw">_</span>)) = text.char_indices().find(is_suffix_start) { |
| <a href=#367 id=367 data-nosnippet>367</a> <span class="kw">let </span>(text2, suffix2) = text.split_at(suffix_start); |
| <a href=#368 id=368 data-nosnippet>368</a> text = text2; |
| <a href=#369 id=369 data-nosnippet>369</a> suffix = suffix2; |
| <a href=#370 id=370 data-nosnippet>370</a> }; |
| <a href=#371 id=371 data-nosnippet>371</a> |
| <a href=#372 id=372 data-nosnippet>372</a> (prefix, text, suffix) |
| <a href=#373 id=373 data-nosnippet>373</a> } |
| <a href=#374 id=374 data-nosnippet>374</a> |
| <a href=#375 id=375 data-nosnippet>375</a> <span class="kw">pub fn </span>value(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><u128, ParseIntError> { |
| <a href=#376 id=376 data-nosnippet>376</a> <span class="kw">let </span>(<span class="kw">_</span>, text, <span class="kw">_</span>) = <span class="self">self</span>.split_into_parts(); |
| <a href=#377 id=377 data-nosnippet>377</a> u128::from_str_radix(<span class="kw-2">&</span>text.replace(<span class="string">'_'</span>, <span class="string">""</span>), <span class="self">self</span>.radix() <span class="kw">as </span>u32) |
| <a href=#378 id=378 data-nosnippet>378</a> } |
| <a href=#379 id=379 data-nosnippet>379</a> |
| <a href=#380 id=380 data-nosnippet>380</a> <span class="kw">pub fn </span>suffix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>str> { |
| <a href=#381 id=381 data-nosnippet>381</a> <span class="kw">let </span>(<span class="kw">_</span>, <span class="kw">_</span>, suffix) = <span class="self">self</span>.split_into_parts(); |
| <a href=#382 id=382 data-nosnippet>382</a> <span class="kw">if </span>suffix.is_empty() { <span class="prelude-val">None </span>} <span class="kw">else </span>{ <span class="prelude-val">Some</span>(suffix) } |
| <a href=#383 id=383 data-nosnippet>383</a> } |
| <a href=#384 id=384 data-nosnippet>384</a> |
| <a href=#385 id=385 data-nosnippet>385</a> <span class="kw">pub fn </span>value_string(<span class="kw-2">&</span><span class="self">self</span>) -> String { |
| <a href=#386 id=386 data-nosnippet>386</a> <span class="kw">let </span>(<span class="kw">_</span>, text, <span class="kw">_</span>) = <span class="self">self</span>.split_into_parts(); |
| <a href=#387 id=387 data-nosnippet>387</a> text.replace(<span class="string">'_'</span>, <span class="string">""</span>) |
| <a href=#388 id=388 data-nosnippet>388</a> } |
| <a href=#389 id=389 data-nosnippet>389</a>} |
| <a href=#390 id=390 data-nosnippet>390</a> |
| <a href=#391 id=391 data-nosnippet>391</a><span class="kw">impl </span>ast::FloatNumber { |
| <a href=#392 id=392 data-nosnippet>392</a> <span class="kw">pub fn </span>split_into_parts(<span class="kw-2">&</span><span class="self">self</span>) -> (<span class="kw-2">&</span>str, <span class="kw-2">&</span>str) { |
| <a href=#393 id=393 data-nosnippet>393</a> <span class="kw">let </span>text = <span class="self">self</span>.text(); |
| <a href=#394 id=394 data-nosnippet>394</a> <span class="kw">let </span><span class="kw-2">mut </span>float_text = <span class="self">self</span>.text(); |
| <a href=#395 id=395 data-nosnippet>395</a> <span class="kw">let </span><span class="kw-2">mut </span>suffix = <span class="string">""</span>; |
| <a href=#396 id=396 data-nosnippet>396</a> <span class="kw">let </span><span class="kw-2">mut </span>indices = text.char_indices(); |
| <a href=#397 id=397 data-nosnippet>397</a> <span class="kw">if let </span><span class="prelude-val">Some</span>((<span class="kw-2">mut </span>suffix_start, c)) = indices.by_ref().find(|(<span class="kw">_</span>, c)| c.is_ascii_alphabetic()) |
| <a href=#398 id=398 data-nosnippet>398</a> { |
| <a href=#399 id=399 data-nosnippet>399</a> <span class="kw">if </span>c == <span class="string">'e' </span>|| c == <span class="string">'E' </span>{ |
| <a href=#400 id=400 data-nosnippet>400</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(suffix_start_tuple) = indices.find(|(<span class="kw">_</span>, c)| c.is_ascii_alphabetic()) { |
| <a href=#401 id=401 data-nosnippet>401</a> suffix_start = suffix_start_tuple.<span class="number">0</span>; |
| <a href=#402 id=402 data-nosnippet>402</a> |
| <a href=#403 id=403 data-nosnippet>403</a> float_text = <span class="kw-2">&</span>text[..suffix_start]; |
| <a href=#404 id=404 data-nosnippet>404</a> suffix = <span class="kw-2">&</span>text[suffix_start..]; |
| <a href=#405 id=405 data-nosnippet>405</a> } |
| <a href=#406 id=406 data-nosnippet>406</a> } <span class="kw">else </span>{ |
| <a href=#407 id=407 data-nosnippet>407</a> float_text = <span class="kw-2">&</span>text[..suffix_start]; |
| <a href=#408 id=408 data-nosnippet>408</a> suffix = <span class="kw-2">&</span>text[suffix_start..]; |
| <a href=#409 id=409 data-nosnippet>409</a> } |
| <a href=#410 id=410 data-nosnippet>410</a> } |
| <a href=#411 id=411 data-nosnippet>411</a> |
| <a href=#412 id=412 data-nosnippet>412</a> (float_text, suffix) |
| <a href=#413 id=413 data-nosnippet>413</a> } |
| <a href=#414 id=414 data-nosnippet>414</a> |
| <a href=#415 id=415 data-nosnippet>415</a> <span class="kw">pub fn </span>suffix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>str> { |
| <a href=#416 id=416 data-nosnippet>416</a> <span class="kw">let </span>(<span class="kw">_</span>, suffix) = <span class="self">self</span>.split_into_parts(); |
| <a href=#417 id=417 data-nosnippet>417</a> <span class="kw">if </span>suffix.is_empty() { <span class="prelude-val">None </span>} <span class="kw">else </span>{ <span class="prelude-val">Some</span>(suffix) } |
| <a href=#418 id=418 data-nosnippet>418</a> } |
| <a href=#419 id=419 data-nosnippet>419</a> |
| <a href=#420 id=420 data-nosnippet>420</a> <span class="kw">pub fn </span>value_string(<span class="kw-2">&</span><span class="self">self</span>) -> String { |
| <a href=#421 id=421 data-nosnippet>421</a> <span class="kw">let </span>(text, <span class="kw">_</span>) = <span class="self">self</span>.split_into_parts(); |
| <a href=#422 id=422 data-nosnippet>422</a> text.replace(<span class="string">'_'</span>, <span class="string">""</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> |
| <a href=#426 id=426 data-nosnippet>426</a><span class="attr">#[derive(Debug, PartialEq, Eq, Copy, Clone)] |
| <a href=#427 id=427 data-nosnippet>427</a></span><span class="kw">pub enum </span>Radix { |
| <a href=#428 id=428 data-nosnippet>428</a> Binary = <span class="number">2</span>, |
| <a href=#429 id=429 data-nosnippet>429</a> Octal = <span class="number">8</span>, |
| <a href=#430 id=430 data-nosnippet>430</a> Decimal = <span class="number">10</span>, |
| <a href=#431 id=431 data-nosnippet>431</a> Hexadecimal = <span class="number">16</span>, |
| <a href=#432 id=432 data-nosnippet>432</a>} |
| <a href=#433 id=433 data-nosnippet>433</a> |
| <a href=#434 id=434 data-nosnippet>434</a><span class="kw">impl </span>Radix { |
| <a href=#435 id=435 data-nosnippet>435</a> <span class="kw">pub const </span>ALL: <span class="kw-2">&</span><span class="lifetime">'static </span>[Radix] = |
| <a href=#436 id=436 data-nosnippet>436</a> <span class="kw-2">&</span>[Radix::Binary, Radix::Octal, Radix::Decimal, Radix::Hexadecimal]; |
| <a href=#437 id=437 data-nosnippet>437</a> |
| <a href=#438 id=438 data-nosnippet>438</a> <span class="kw">const fn </span>prefix_len(<span class="self">self</span>) -> usize { |
| <a href=#439 id=439 data-nosnippet>439</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#440 id=440 data-nosnippet>440</a> <span class="self">Self</span>::Decimal => <span class="number">0</span>, |
| <a href=#441 id=441 data-nosnippet>441</a> <span class="kw">_ </span>=> <span class="number">2</span>, |
| <a href=#442 id=442 data-nosnippet>442</a> } |
| <a href=#443 id=443 data-nosnippet>443</a> } |
| <a href=#444 id=444 data-nosnippet>444</a>} |
| <a href=#445 id=445 data-nosnippet>445</a> |
| <a href=#446 id=446 data-nosnippet>446</a><span class="kw">impl </span>ast::Char { |
| <a href=#447 id=447 data-nosnippet>447</a> <span class="kw">pub fn </span>value(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><char, EscapeError> { |
| <a href=#448 id=448 data-nosnippet>448</a> <span class="kw">let </span><span class="kw-2">mut </span>text = <span class="self">self</span>.text(); |
| <a href=#449 id=449 data-nosnippet>449</a> <span class="kw">if </span>text.starts_with(<span class="string">'\''</span>) { |
| <a href=#450 id=450 data-nosnippet>450</a> text = <span class="kw-2">&</span>text[<span class="number">1</span>..]; |
| <a href=#451 id=451 data-nosnippet>451</a> } <span class="kw">else </span>{ |
| <a href=#452 id=452 data-nosnippet>452</a> <span class="kw">return </span><span class="prelude-val">Err</span>(EscapeError::ZeroChars); |
| <a href=#453 id=453 data-nosnippet>453</a> } |
| <a href=#454 id=454 data-nosnippet>454</a> <span class="kw">if </span>text.ends_with(<span class="string">'\''</span>) { |
| <a href=#455 id=455 data-nosnippet>455</a> text = <span class="kw-2">&</span>text[<span class="number">0</span>..text.len() - <span class="number">1</span>]; |
| <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> unescape_char(text) |
| <a href=#459 id=459 data-nosnippet>459</a> } |
| <a href=#460 id=460 data-nosnippet>460</a>} |
| <a href=#461 id=461 data-nosnippet>461</a> |
| <a href=#462 id=462 data-nosnippet>462</a><span class="kw">impl </span>ast::Byte { |
| <a href=#463 id=463 data-nosnippet>463</a> <span class="kw">pub fn </span>value(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><u8, EscapeError> { |
| <a href=#464 id=464 data-nosnippet>464</a> <span class="kw">let </span><span class="kw-2">mut </span>text = <span class="self">self</span>.text(); |
| <a href=#465 id=465 data-nosnippet>465</a> <span class="kw">if </span>text.starts_with(<span class="string">"b\'"</span>) { |
| <a href=#466 id=466 data-nosnippet>466</a> text = <span class="kw-2">&</span>text[<span class="number">2</span>..]; |
| <a href=#467 id=467 data-nosnippet>467</a> } <span class="kw">else </span>{ |
| <a href=#468 id=468 data-nosnippet>468</a> <span class="kw">return </span><span class="prelude-val">Err</span>(EscapeError::ZeroChars); |
| <a href=#469 id=469 data-nosnippet>469</a> } |
| <a href=#470 id=470 data-nosnippet>470</a> <span class="kw">if </span>text.ends_with(<span class="string">'\''</span>) { |
| <a href=#471 id=471 data-nosnippet>471</a> text = <span class="kw-2">&</span>text[<span class="number">0</span>..text.len() - <span class="number">1</span>]; |
| <a href=#472 id=472 data-nosnippet>472</a> } |
| <a href=#473 id=473 data-nosnippet>473</a> |
| <a href=#474 id=474 data-nosnippet>474</a> unescape_byte(text) |
| <a href=#475 id=475 data-nosnippet>475</a> } |
| <a href=#476 id=476 data-nosnippet>476</a>} |
| <a href=#477 id=477 data-nosnippet>477</a> |
| <a href=#478 id=478 data-nosnippet>478</a><span class="kw">pub enum </span>AnyString { |
| <a href=#479 id=479 data-nosnippet>479</a> ByteString(ast::ByteString), |
| <a href=#480 id=480 data-nosnippet>480</a> CString(ast::CString), |
| <a href=#481 id=481 data-nosnippet>481</a> String(ast::String), |
| <a href=#482 id=482 data-nosnippet>482</a>} |
| <a href=#483 id=483 data-nosnippet>483</a> |
| <a href=#484 id=484 data-nosnippet>484</a><span class="kw">impl </span>AnyString { |
| <a href=#485 id=485 data-nosnippet>485</a> <span class="kw">pub fn </span>value(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Cow<<span class="lifetime">'_</span>, str>, EscapeError> { |
| <a href=#486 id=486 data-nosnippet>486</a> <span class="kw">fn </span>from_utf8(s: Cow<<span class="lifetime">'_</span>, [u8]>) -> <span class="prelude-ty">Result</span><Cow<<span class="lifetime">'_</span>, str>, EscapeError> { |
| <a href=#487 id=487 data-nosnippet>487</a> <span class="kw">match </span>s { |
| <a href=#488 id=488 data-nosnippet>488</a> Cow::Borrowed(s) => str::from_utf8(s) |
| <a href=#489 id=489 data-nosnippet>489</a> .map_err(|<span class="kw">_</span>| EscapeError::NonAsciiCharInByte) |
| <a href=#490 id=490 data-nosnippet>490</a> .map(Cow::Borrowed), |
| <a href=#491 id=491 data-nosnippet>491</a> Cow::Owned(s) => String::from_utf8(s) |
| <a href=#492 id=492 data-nosnippet>492</a> .map_err(|<span class="kw">_</span>| EscapeError::NonAsciiCharInByte) |
| <a href=#493 id=493 data-nosnippet>493</a> .map(Cow::Owned), |
| <a href=#494 id=494 data-nosnippet>494</a> } |
| <a href=#495 id=495 data-nosnippet>495</a> } |
| <a href=#496 id=496 data-nosnippet>496</a> |
| <a href=#497 id=497 data-nosnippet>497</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#498 id=498 data-nosnippet>498</a> AnyString::String(s) => s.value(), |
| <a href=#499 id=499 data-nosnippet>499</a> AnyString::ByteString(s) => s.value().and_then(from_utf8), |
| <a href=#500 id=500 data-nosnippet>500</a> AnyString::CString(s) => s.value().and_then(from_utf8), |
| <a href=#501 id=501 data-nosnippet>501</a> } |
| <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><span class="kw">impl </span>ast::AstToken <span class="kw">for </span>AnyString { |
| <a href=#506 id=506 data-nosnippet>506</a> <span class="kw">fn </span>can_cast(kind: <span class="kw">crate</span>::SyntaxKind) -> bool { |
| <a href=#507 id=507 data-nosnippet>507</a> ast::String::can_cast(kind) |
| <a href=#508 id=508 data-nosnippet>508</a> || ast::ByteString::can_cast(kind) |
| <a href=#509 id=509 data-nosnippet>509</a> || ast::CString::can_cast(kind) |
| <a href=#510 id=510 data-nosnippet>510</a> } |
| <a href=#511 id=511 data-nosnippet>511</a> |
| <a href=#512 id=512 data-nosnippet>512</a> <span class="kw">fn </span>cast(syntax: <span class="kw">crate</span>::SyntaxToken) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>> { |
| <a href=#513 id=513 data-nosnippet>513</a> ast::String::cast(syntax.clone()) |
| <a href=#514 id=514 data-nosnippet>514</a> .map(<span class="self">Self</span>::String) |
| <a href=#515 id=515 data-nosnippet>515</a> .or_else(|| ast::ByteString::cast(syntax.clone()).map(<span class="self">Self</span>::ByteString)) |
| <a href=#516 id=516 data-nosnippet>516</a> .or_else(|| ast::CString::cast(syntax).map(<span class="self">Self</span>::CString)) |
| <a href=#517 id=517 data-nosnippet>517</a> } |
| <a href=#518 id=518 data-nosnippet>518</a> |
| <a href=#519 id=519 data-nosnippet>519</a> <span class="kw">fn </span>syntax(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="kw">crate</span>::SyntaxToken { |
| <a href=#520 id=520 data-nosnippet>520</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#521 id=521 data-nosnippet>521</a> <span class="self">Self</span>::ByteString(it) => it.syntax(), |
| <a href=#522 id=522 data-nosnippet>522</a> <span class="self">Self</span>::CString(it) => it.syntax(), |
| <a href=#523 id=523 data-nosnippet>523</a> <span class="self">Self</span>::String(it) => it.syntax(), |
| <a href=#524 id=524 data-nosnippet>524</a> } |
| <a href=#525 id=525 data-nosnippet>525</a> } |
| <a href=#526 id=526 data-nosnippet>526</a>} |
| <a href=#527 id=527 data-nosnippet>527</a> |
| <a href=#528 id=528 data-nosnippet>528</a><span class="kw">impl </span>IsString <span class="kw">for </span>AnyString { |
| <a href=#529 id=529 data-nosnippet>529</a> <span class="kw">fn </span>raw_prefix(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str { |
| <a href=#530 id=530 data-nosnippet>530</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#531 id=531 data-nosnippet>531</a> AnyString::ByteString(s) => s.raw_prefix(), |
| <a href=#532 id=532 data-nosnippet>532</a> AnyString::CString(s) => s.raw_prefix(), |
| <a href=#533 id=533 data-nosnippet>533</a> AnyString::String(s) => s.raw_prefix(), |
| <a href=#534 id=534 data-nosnippet>534</a> } |
| <a href=#535 id=535 data-nosnippet>535</a> } |
| <a href=#536 id=536 data-nosnippet>536</a> |
| <a href=#537 id=537 data-nosnippet>537</a> <span class="kw">fn </span>unescape(<span class="kw-2">&</span><span class="self">self</span>, s: <span class="kw-2">&</span>str, callback: <span class="kw">impl </span>FnMut(Range<usize>, <span class="prelude-ty">Result</span><char, EscapeError>)) { |
| <a href=#538 id=538 data-nosnippet>538</a> <span class="kw">match </span><span class="self">self </span>{ |
| <a href=#539 id=539 data-nosnippet>539</a> AnyString::ByteString(it) => it.unescape(s, callback), |
| <a href=#540 id=540 data-nosnippet>540</a> AnyString::CString(it) => it.unescape(s, callback), |
| <a href=#541 id=541 data-nosnippet>541</a> AnyString::String(it) => it.unescape(s, callback), |
| <a href=#542 id=542 data-nosnippet>542</a> } |
| <a href=#543 id=543 data-nosnippet>543</a> } |
| <a href=#544 id=544 data-nosnippet>544</a>} |
| <a href=#545 id=545 data-nosnippet>545</a> |
| <a href=#546 id=546 data-nosnippet>546</a><span class="attr">#[cfg(test)] |
| <a href=#547 id=547 data-nosnippet>547</a></span><span class="kw">mod </span>tests { |
| <a href=#548 id=548 data-nosnippet>548</a> <span class="kw">use </span>rustc_apfloat::ieee::Quad <span class="kw">as </span>f128; |
| <a href=#549 id=549 data-nosnippet>549</a> |
| <a href=#550 id=550 data-nosnippet>550</a> <span class="kw">use </span><span class="kw">crate</span>::ast::{<span class="self">self</span>, FloatNumber, IntNumber, make}; |
| <a href=#551 id=551 data-nosnippet>551</a> |
| <a href=#552 id=552 data-nosnippet>552</a> <span class="kw">fn </span>check_float_suffix<<span class="lifetime">'a</span>>(lit: <span class="kw-2">&</span>str, expected: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span>str>>) { |
| <a href=#553 id=553 data-nosnippet>553</a> <span class="macro">assert_eq!</span>(FloatNumber { syntax: make::tokens::literal(lit) }.suffix(), expected.into()); |
| <a href=#554 id=554 data-nosnippet>554</a> } |
| <a href=#555 id=555 data-nosnippet>555</a> |
| <a href=#556 id=556 data-nosnippet>556</a> <span class="kw">fn </span>check_int_suffix<<span class="lifetime">'a</span>>(lit: <span class="kw-2">&</span>str, expected: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span>str>>) { |
| <a href=#557 id=557 data-nosnippet>557</a> <span class="macro">assert_eq!</span>(IntNumber { syntax: make::tokens::literal(lit) }.suffix(), expected.into()); |
| <a href=#558 id=558 data-nosnippet>558</a> } |
| <a href=#559 id=559 data-nosnippet>559</a> |
| <a href=#560 id=560 data-nosnippet>560</a> <span class="comment">// FIXME(#17451) Use `expected: f128` once `f128` is stabilised. |
| <a href=#561 id=561 data-nosnippet>561</a> </span><span class="kw">fn </span>check_float_value(lit: <span class="kw-2">&</span>str, expected: <span class="kw-2">&</span>str) { |
| <a href=#562 id=562 data-nosnippet>562</a> <span class="kw">let </span>expected = <span class="prelude-val">Some</span>(expected.parse::<f128>().unwrap()); |
| <a href=#563 id=563 data-nosnippet>563</a> <span class="macro">assert_eq!</span>( |
| <a href=#564 id=564 data-nosnippet>564</a> FloatNumber { syntax: make::tokens::literal(lit) }.value_string().parse::<f128>().ok(), |
| <a href=#565 id=565 data-nosnippet>565</a> expected |
| <a href=#566 id=566 data-nosnippet>566</a> ); |
| <a href=#567 id=567 data-nosnippet>567</a> <span class="macro">assert_eq!</span>( |
| <a href=#568 id=568 data-nosnippet>568</a> IntNumber { syntax: make::tokens::literal(lit) }.value_string().parse::<f128>().ok(), |
| <a href=#569 id=569 data-nosnippet>569</a> expected |
| <a href=#570 id=570 data-nosnippet>570</a> ); |
| <a href=#571 id=571 data-nosnippet>571</a> } |
| <a href=#572 id=572 data-nosnippet>572</a> |
| <a href=#573 id=573 data-nosnippet>573</a> <span class="kw">fn </span>check_int_value(lit: <span class="kw-2">&</span>str, expected: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><u128>>) { |
| <a href=#574 id=574 data-nosnippet>574</a> <span class="macro">assert_eq!</span>(IntNumber { syntax: make::tokens::literal(lit) }.value().ok(), expected.into()); |
| <a href=#575 id=575 data-nosnippet>575</a> } |
| <a href=#576 id=576 data-nosnippet>576</a> |
| <a href=#577 id=577 data-nosnippet>577</a> <span class="attr">#[test] |
| <a href=#578 id=578 data-nosnippet>578</a> </span><span class="kw">fn </span>test_float_number_suffix() { |
| <a href=#579 id=579 data-nosnippet>579</a> check_float_suffix(<span class="string">"123.0"</span>, <span class="prelude-val">None</span>); |
| <a href=#580 id=580 data-nosnippet>580</a> check_float_suffix(<span class="string">"123f32"</span>, <span class="string">"f32"</span>); |
| <a href=#581 id=581 data-nosnippet>581</a> check_float_suffix(<span class="string">"123.0e"</span>, <span class="prelude-val">None</span>); |
| <a href=#582 id=582 data-nosnippet>582</a> check_float_suffix(<span class="string">"123.0e4"</span>, <span class="prelude-val">None</span>); |
| <a href=#583 id=583 data-nosnippet>583</a> check_float_suffix(<span class="string">"123.0ef16"</span>, <span class="string">"f16"</span>); |
| <a href=#584 id=584 data-nosnippet>584</a> check_float_suffix(<span class="string">"123.0E4f32"</span>, <span class="string">"f32"</span>); |
| <a href=#585 id=585 data-nosnippet>585</a> check_float_suffix(<span class="string">"1_2_3.0_f128"</span>, <span class="string">"f128"</span>); |
| <a href=#586 id=586 data-nosnippet>586</a> } |
| <a href=#587 id=587 data-nosnippet>587</a> |
| <a href=#588 id=588 data-nosnippet>588</a> <span class="attr">#[test] |
| <a href=#589 id=589 data-nosnippet>589</a> </span><span class="kw">fn </span>test_int_number_suffix() { |
| <a href=#590 id=590 data-nosnippet>590</a> check_int_suffix(<span class="string">"123"</span>, <span class="prelude-val">None</span>); |
| <a href=#591 id=591 data-nosnippet>591</a> check_int_suffix(<span class="string">"123i32"</span>, <span class="string">"i32"</span>); |
| <a href=#592 id=592 data-nosnippet>592</a> check_int_suffix(<span class="string">"1_0_1_l_o_l"</span>, <span class="string">"l_o_l"</span>); |
| <a href=#593 id=593 data-nosnippet>593</a> check_int_suffix(<span class="string">"0b11"</span>, <span class="prelude-val">None</span>); |
| <a href=#594 id=594 data-nosnippet>594</a> check_int_suffix(<span class="string">"0o11"</span>, <span class="prelude-val">None</span>); |
| <a href=#595 id=595 data-nosnippet>595</a> check_int_suffix(<span class="string">"0xff"</span>, <span class="prelude-val">None</span>); |
| <a href=#596 id=596 data-nosnippet>596</a> check_int_suffix(<span class="string">"0b11u32"</span>, <span class="string">"u32"</span>); |
| <a href=#597 id=597 data-nosnippet>597</a> check_int_suffix(<span class="string">"0o11u32"</span>, <span class="string">"u32"</span>); |
| <a href=#598 id=598 data-nosnippet>598</a> check_int_suffix(<span class="string">"0xffu32"</span>, <span class="string">"u32"</span>); |
| <a href=#599 id=599 data-nosnippet>599</a> } |
| <a href=#600 id=600 data-nosnippet>600</a> |
| <a href=#601 id=601 data-nosnippet>601</a> <span class="kw">fn </span>check_string_value<<span class="lifetime">'a</span>>(lit: <span class="kw-2">&</span>str, expected: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span>str>>) { |
| <a href=#602 id=602 data-nosnippet>602</a> <span class="macro">assert_eq!</span>( |
| <a href=#603 id=603 data-nosnippet>603</a> ast::String { syntax: make::tokens::literal(<span class="kw-2">&</span><span class="macro">format!</span>(<span class="string">"\"{lit}\""</span>)) } |
| <a href=#604 id=604 data-nosnippet>604</a> .value() |
| <a href=#605 id=605 data-nosnippet>605</a> .as_deref() |
| <a href=#606 id=606 data-nosnippet>606</a> .ok(), |
| <a href=#607 id=607 data-nosnippet>607</a> expected.into() |
| <a href=#608 id=608 data-nosnippet>608</a> ); |
| <a href=#609 id=609 data-nosnippet>609</a> } |
| <a href=#610 id=610 data-nosnippet>610</a> |
| <a href=#611 id=611 data-nosnippet>611</a> <span class="attr">#[test] |
| <a href=#612 id=612 data-nosnippet>612</a> </span><span class="kw">fn </span>test_string_escape() { |
| <a href=#613 id=613 data-nosnippet>613</a> check_string_value(<span class="string">r"foobar"</span>, <span class="string">"foobar"</span>); |
| <a href=#614 id=614 data-nosnippet>614</a> check_string_value(<span class="string">r"\foobar"</span>, <span class="prelude-val">None</span>); |
| <a href=#615 id=615 data-nosnippet>615</a> check_string_value(<span class="string">r"\nfoobar"</span>, <span class="string">"\nfoobar"</span>); |
| <a href=#616 id=616 data-nosnippet>616</a> check_string_value(<span class="string">r"C:\\Windows\\System32\\"</span>, <span class="string">"C:\\Windows\\System32\\"</span>); |
| <a href=#617 id=617 data-nosnippet>617</a> check_string_value(<span class="string">r"\x61bcde"</span>, <span class="string">"abcde"</span>); |
| <a href=#618 id=618 data-nosnippet>618</a> check_string_value( |
| <a href=#619 id=619 data-nosnippet>619</a> <span class="string">r"a\ |
| <a href=#620 id=620 data-nosnippet>620</a>bcde"</span>, <span class="string">"abcde"</span>, |
| <a href=#621 id=621 data-nosnippet>621</a> ); |
| <a href=#622 id=622 data-nosnippet>622</a> } |
| <a href=#623 id=623 data-nosnippet>623</a> |
| <a href=#624 id=624 data-nosnippet>624</a> <span class="kw">fn </span>check_byte_string_value<<span class="lifetime">'a</span>, <span class="kw">const </span>N: usize>( |
| <a href=#625 id=625 data-nosnippet>625</a> lit: <span class="kw-2">&</span>str, |
| <a href=#626 id=626 data-nosnippet>626</a> expected: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8; N]>>, |
| <a href=#627 id=627 data-nosnippet>627</a> ) { |
| <a href=#628 id=628 data-nosnippet>628</a> <span class="macro">assert_eq!</span>( |
| <a href=#629 id=629 data-nosnippet>629</a> ast::ByteString { syntax: make::tokens::literal(<span class="kw-2">&</span><span class="macro">format!</span>(<span class="string">"b\"{lit}\""</span>)) } |
| <a href=#630 id=630 data-nosnippet>630</a> .value() |
| <a href=#631 id=631 data-nosnippet>631</a> .as_deref() |
| <a href=#632 id=632 data-nosnippet>632</a> .ok(), |
| <a href=#633 id=633 data-nosnippet>633</a> expected.into().map(|value| <span class="kw-2">&</span>value[..]) |
| <a href=#634 id=634 data-nosnippet>634</a> ); |
| <a href=#635 id=635 data-nosnippet>635</a> } |
| <a href=#636 id=636 data-nosnippet>636</a> |
| <a href=#637 id=637 data-nosnippet>637</a> <span class="attr">#[test] |
| <a href=#638 id=638 data-nosnippet>638</a> </span><span class="kw">fn </span>test_byte_string_escape() { |
| <a href=#639 id=639 data-nosnippet>639</a> check_byte_string_value(<span class="string">r"foobar"</span>, <span class="string">b"foobar"</span>); |
| <a href=#640 id=640 data-nosnippet>640</a> check_byte_string_value(<span class="string">r"\foobar"</span>, <span class="prelude-val">None</span>::<<span class="kw-2">&</span>[u8; <span class="number">0</span>]>); |
| <a href=#641 id=641 data-nosnippet>641</a> check_byte_string_value(<span class="string">r"\nfoobar"</span>, <span class="string">b"\nfoobar"</span>); |
| <a href=#642 id=642 data-nosnippet>642</a> check_byte_string_value(<span class="string">r"C:\\Windows\\System32\\"</span>, <span class="string">b"C:\\Windows\\System32\\"</span>); |
| <a href=#643 id=643 data-nosnippet>643</a> check_byte_string_value(<span class="string">r"\x61bcde"</span>, <span class="string">b"abcde"</span>); |
| <a href=#644 id=644 data-nosnippet>644</a> check_byte_string_value( |
| <a href=#645 id=645 data-nosnippet>645</a> <span class="string">r"a\ |
| <a href=#646 id=646 data-nosnippet>646</a>bcde"</span>, <span class="string">b"abcde"</span>, |
| <a href=#647 id=647 data-nosnippet>647</a> ); |
| <a href=#648 id=648 data-nosnippet>648</a> } |
| <a href=#649 id=649 data-nosnippet>649</a> |
| <a href=#650 id=650 data-nosnippet>650</a> <span class="attr">#[test] |
| <a href=#651 id=651 data-nosnippet>651</a> </span><span class="kw">fn </span>test_value_underscores() { |
| <a href=#652 id=652 data-nosnippet>652</a> check_float_value(<span class="string">"1.3_4665449586950493453___6_f128"</span>, <span class="string">"1.346654495869504934536"</span>); |
| <a href=#653 id=653 data-nosnippet>653</a> check_float_value(<span class="string">"1.234567891011121_f64"</span>, <span class="string">"1.234567891011121"</span>); |
| <a href=#654 id=654 data-nosnippet>654</a> check_float_value(<span class="string">"1__0.__0__f32"</span>, <span class="string">"10.0"</span>); |
| <a href=#655 id=655 data-nosnippet>655</a> check_float_value(<span class="string">"3._0_f16"</span>, <span class="string">"3.0"</span>); |
| <a href=#656 id=656 data-nosnippet>656</a> check_int_value(<span class="string">"0b__1_0_"</span>, <span class="number">2</span>); |
| <a href=#657 id=657 data-nosnippet>657</a> check_int_value(<span class="string">"1_1_1_1_1_1"</span>, <span class="number">111111</span>); |
| <a href=#658 id=658 data-nosnippet>658</a> } |
| <a href=#659 id=659 data-nosnippet>659</a>} |
| </code></pre></div></section></main></body></html> |
