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| author | johannst <johannst@users.noreply.github.com> | 2021-09-13 22:26:20 +0000 |
|---|---|---|
| committer | johannst <johannst@users.noreply.github.com> | 2021-09-13 22:26:20 +0000 |
| commit | a47dfd3d1417412f4d55ffa964d9fc98d8d53a9d (patch) | |
| tree | 417f70d1193d09d22b37ec49b905b03fc916366f /src/llvm_kaleidoscope_rs/lexer.rs.html | |
| download | llvm-kaleidoscope-rs-a47dfd3d1417412f4d55ffa964d9fc98d8d53a9d.tar.gz llvm-kaleidoscope-rs-a47dfd3d1417412f4d55ffa964d9fc98d8d53a9d.zip | |
deploy: 743f301eef632a41bd870529a9e838ce4974f9eb
Diffstat (limited to 'src/llvm_kaleidoscope_rs/lexer.rs.html')
| -rw-r--r-- | src/llvm_kaleidoscope_rs/lexer.rs.html | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/src/llvm_kaleidoscope_rs/lexer.rs.html b/src/llvm_kaleidoscope_rs/lexer.rs.html new file mode 100644 index 0000000..3524648 --- /dev/null +++ b/src/llvm_kaleidoscope_rs/lexer.rs.html @@ -0,0 +1,367 @@ +<!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 `src/lexer.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lexer.rs - source</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg"> +<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"> +<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc source"><!--[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="sidebar-menu" role="button">☰</div><a href='../../llvm_kaleidoscope_rs/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1"> 1</span> +<span id="2"> 2</span> +<span id="3"> 3</span> +<span id="4"> 4</span> +<span id="5"> 5</span> +<span id="6"> 6</span> +<span id="7"> 7</span> +<span id="8"> 8</span> +<span id="9"> 9</span> +<span id="10"> 10</span> +<span id="11"> 11</span> +<span id="12"> 12</span> +<span id="13"> 13</span> +<span id="14"> 14</span> +<span id="15"> 15</span> +<span id="16"> 16</span> +<span id="17"> 17</span> +<span id="18"> 18</span> +<span id="19"> 19</span> +<span id="20"> 20</span> +<span id="21"> 21</span> +<span id="22"> 22</span> +<span id="23"> 23</span> +<span id="24"> 24</span> +<span id="25"> 25</span> +<span id="26"> 26</span> +<span id="27"> 27</span> +<span id="28"> 28</span> +<span id="29"> 29</span> +<span id="30"> 30</span> +<span id="31"> 31</span> +<span id="32"> 32</span> +<span id="33"> 33</span> +<span id="34"> 34</span> +<span id="35"> 35</span> +<span id="36"> 36</span> +<span id="37"> 37</span> +<span id="38"> 38</span> +<span id="39"> 39</span> +<span id="40"> 40</span> +<span id="41"> 41</span> +<span id="42"> 42</span> +<span id="43"> 43</span> +<span id="44"> 44</span> +<span id="45"> 45</span> +<span id="46"> 46</span> +<span id="47"> 47</span> +<span id="48"> 48</span> +<span id="49"> 49</span> +<span id="50"> 50</span> +<span id="51"> 51</span> +<span id="52"> 52</span> +<span id="53"> 53</span> +<span id="54"> 54</span> +<span id="55"> 55</span> +<span id="56"> 56</span> +<span id="57"> 57</span> +<span id="58"> 58</span> +<span id="59"> 59</span> +<span id="60"> 60</span> +<span id="61"> 61</span> +<span id="62"> 62</span> +<span id="63"> 63</span> +<span id="64"> 64</span> +<span id="65"> 65</span> +<span id="66"> 66</span> +<span id="67"> 67</span> +<span id="68"> 68</span> +<span id="69"> 69</span> +<span id="70"> 70</span> +<span id="71"> 71</span> +<span id="72"> 72</span> +<span id="73"> 73</span> +<span id="74"> 74</span> +<span id="75"> 75</span> +<span id="76"> 76</span> +<span id="77"> 77</span> +<span id="78"> 78</span> +<span id="79"> 79</span> +<span id="80"> 80</span> +<span id="81"> 81</span> +<span id="82"> 82</span> +<span id="83"> 83</span> +<span id="84"> 84</span> +<span id="85"> 85</span> +<span id="86"> 86</span> +<span id="87"> 87</span> +<span id="88"> 88</span> +<span id="89"> 89</span> +<span id="90"> 90</span> +<span id="91"> 91</span> +<span id="92"> 92</span> +<span id="93"> 93</span> +<span id="94"> 94</span> +<span id="95"> 95</span> +<span id="96"> 96</span> +<span id="97"> 97</span> +<span id="98"> 98</span> +<span id="99"> 99</span> +<span id="100">100</span> +<span id="101">101</span> +<span id="102">102</span> +<span id="103">103</span> +<span id="104">104</span> +<span id="105">105</span> +<span id="106">106</span> +<span id="107">107</span> +<span id="108">108</span> +<span id="109">109</span> +<span id="110">110</span> +<span id="111">111</span> +<span id="112">112</span> +<span id="113">113</span> +<span id="114">114</span> +<span id="115">115</span> +<span id="116">116</span> +<span id="117">117</span> +<span id="118">118</span> +<span id="119">119</span> +<span id="120">120</span> +<span id="121">121</span> +<span id="122">122</span> +<span id="123">123</span> +<span id="124">124</span> +<span id="125">125</span> +<span id="126">126</span> +<span id="127">127</span> +<span id="128">128</span> +<span id="129">129</span> +<span id="130">130</span> +<span id="131">131</span> +<span id="132">132</span> +<span id="133">133</span> +<span id="134">134</span> +<span id="135">135</span> +<span id="136">136</span> +<span id="137">137</span> +<span id="138">138</span> +<span id="139">139</span> +<span id="140">140</span> +<span id="141">141</span> +<span id="142">142</span> +<span id="143">143</span> +<span id="144">144</span> +<span id="145">145</span> +<span id="146">146</span> +<span id="147">147</span> +<span id="148">148</span> +<span id="149">149</span> +<span id="150">150</span> +<span id="151">151</span> +<span id="152">152</span> +<span id="153">153</span> +<span id="154">154</span> +<span id="155">155</span> +<span id="156">156</span> +<span id="157">157</span> +<span id="158">158</span> +<span id="159">159</span> +<span id="160">160</span> +<span id="161">161</span> +<span id="162">162</span> +<span id="163">163</span> +<span id="164">164</span> +<span id="165">165</span> +<span id="166">166</span> +<span id="167">167</span> +<span id="168">168</span> +<span id="169">169</span> +<span id="170">170</span> +<span id="171">171</span> +<span id="172">172</span> +<span id="173">173</span> +<span id="174">174</span> +<span id="175">175</span> +<span id="176">176</span> +<span id="177">177</span> +<span id="178">178</span> +<span id="179">179</span> +<span id="180">180</span> +<span id="181">181</span> +</pre><pre class="rust"> +<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">PartialEq</span>)]</span> +<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Token</span> { + <span class="ident">Eof</span>, + <span class="ident">Def</span>, + <span class="ident">Extern</span>, + <span class="ident">Identifier</span>(<span class="ident">String</span>), + <span class="ident">Number</span>(<span class="ident">f64</span>), + <span class="ident">Char</span>(<span class="ident">char</span>), +} + +<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Lexer</span><span class="op"><</span><span class="ident">I</span><span class="op">></span> +<span class="kw">where</span> + <span class="ident">I</span>: <span class="ident">Iterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">char</span><span class="op">></span>, +{ + <span class="ident">input</span>: <span class="ident">I</span>, + <span class="ident">last_char</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">char</span><span class="op">></span>, +} + +<span class="kw">impl</span><span class="op"><</span><span class="ident">I</span><span class="op">></span> <span class="ident">Lexer</span><span class="op"><</span><span class="ident">I</span><span class="op">></span> +<span class="kw">where</span> + <span class="ident">I</span>: <span class="ident">Iterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">char</span><span class="op">></span>, +{ + <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="kw-2">mut</span> <span class="ident">input</span>: <span class="ident">I</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Lexer</span><span class="op"><</span><span class="ident">I</span><span class="op">></span> { + <span class="kw">let</span> <span class="ident">last_char</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">next</span>(); + <span class="ident">Lexer</span> { <span class="ident">input</span>, <span class="ident">last_char</span> } + } + + <span class="kw">fn</span> <span class="ident">step</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">char</span><span class="op">></span> { + <span class="self">self</span>.<span class="ident">last_char</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">input</span>.<span class="ident">next</span>(); + <span class="self">self</span>.<span class="ident">last_char</span> + } + + <span class="doccomment">/// Lex and return the next token.</span> + <span class="doccomment">///</span> + <span class="doccomment">/// Implement `int gettok();` from the tutorial.</span> + <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">gettok</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Token</span> { + <span class="comment">// Eat up whitespaces.</span> + <span class="kw">while</span> <span class="macro">matches!</span>(<span class="self">self</span>.<span class="ident">last_char</span>, <span class="prelude-val">Some</span>(<span class="ident">c</span>) <span class="kw">if</span> <span class="ident">c</span>.<span class="ident">is_ascii_whitespace</span>()) { + <span class="self">self</span>.<span class="ident">step</span>(); + } + + <span class="comment">// Unpack last char or return EOF.</span> + <span class="kw">let</span> <span class="ident">last_char</span> <span class="op">=</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">c</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">last_char</span> { + <span class="ident">c</span> + } <span class="kw">else</span> { + <span class="kw">return</span> <span class="ident">Token::Eof</span>; + }; + + <span class="comment">// Identifier: [a-zA-Z][a-zA-Z0-9]*</span> + <span class="kw">if</span> <span class="ident">last_char</span>.<span class="ident">is_ascii_alphabetic</span>() { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ident</span> <span class="op">=</span> <span class="ident">String::new</span>(); + <span class="ident">ident</span>.<span class="ident">push</span>(<span class="ident">last_char</span>); + + <span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">c</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">step</span>() { + <span class="kw">if</span> <span class="ident">c</span>.<span class="ident">is_ascii_alphanumeric</span>() { + <span class="ident">ident</span>.<span class="ident">push</span>(<span class="ident">c</span>) + } <span class="kw">else</span> { + <span class="kw">break</span>; + } + } + + <span class="kw">match</span> <span class="ident">ident</span>.<span class="ident">as_ref</span>() { + <span class="string">"def"</span> <span class="op">=</span><span class="op">></span> <span class="kw">return</span> <span class="ident">Token::Def</span>, + <span class="string">"extern"</span> <span class="op">=</span><span class="op">></span> <span class="kw">return</span> <span class="ident">Token::Extern</span>, + <span class="kw">_</span> <span class="op">=</span><span class="op">></span> {} + } + + <span class="kw">return</span> <span class="ident">Token::Identifier</span>(<span class="ident">ident</span>); + } + + <span class="comment">// Number: [0-9.]+</span> + <span class="kw">if</span> <span class="ident">last_char</span>.<span class="ident">is_ascii_digit</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">last_char</span> <span class="op">=</span><span class="op">=</span> <span class="string">'.'</span> { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">num</span> <span class="op">=</span> <span class="ident">String::new</span>(); + <span class="ident">num</span>.<span class="ident">push</span>(<span class="ident">last_char</span>); + + <span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">c</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">step</span>() { + <span class="kw">if</span> <span class="ident">c</span>.<span class="ident">is_ascii_digit</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">c</span> <span class="op">=</span><span class="op">=</span> <span class="string">'.'</span> { + <span class="ident">num</span>.<span class="ident">push</span>(<span class="ident">c</span>) + } <span class="kw">else</span> { + <span class="kw">break</span>; + } + } + + <span class="kw">let</span> <span class="ident">num</span>: <span class="ident">f64</span> <span class="op">=</span> <span class="ident">num</span>.<span class="ident">parse</span>().<span class="ident">unwrap_or_default</span>(); + <span class="kw">return</span> <span class="ident">Token::Number</span>(<span class="ident">num</span>); + } + + <span class="comment">// Eat up comment.</span> + <span class="kw">if</span> <span class="ident">last_char</span> <span class="op">=</span><span class="op">=</span> <span class="string">'#'</span> { + <span class="kw">loop</span> { + <span class="kw">match</span> <span class="self">self</span>.<span class="ident">step</span>() { + <span class="prelude-val">Some</span>(<span class="ident">c</span>) <span class="kw">if</span> <span class="ident">c</span> <span class="op">=</span><span class="op">=</span> <span class="string">'\r'</span> <span class="op">|</span><span class="op">|</span> <span class="ident">c</span> <span class="op">=</span><span class="op">=</span> <span class="string">'\n'</span> <span class="op">=</span><span class="op">></span> <span class="kw">return</span> <span class="self">self</span>.<span class="ident">gettok</span>(), + <span class="prelude-val">None</span> <span class="op">=</span><span class="op">></span> <span class="kw">return</span> <span class="ident">Token::Eof</span>, + <span class="kw">_</span> <span class="op">=</span><span class="op">></span> { <span class="comment">/* consume comment */</span> } + } + } + } + + <span class="comment">// Advance last char and return currently last char.</span> + <span class="self">self</span>.<span class="ident">step</span>(); + <span class="ident">Token::Char</span>(<span class="ident">last_char</span>) + } +} + +<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span> +<span class="kw">mod</span> <span class="ident">test</span> { + <span class="kw">use</span> <span class="kw">super</span>::{<span class="ident">Lexer</span>, <span class="ident">Token</span>}; + + <span class="attribute">#[<span class="ident">test</span>]</span> + <span class="kw">fn</span> <span class="ident">test_identifier</span>() { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">"a b c"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"a"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"b"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"c"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + } + + <span class="attribute">#[<span class="ident">test</span>]</span> + <span class="kw">fn</span> <span class="ident">test_keyword</span>() { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">"def extern"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Def</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Extern</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + } + + <span class="attribute">#[<span class="ident">test</span>]</span> + <span class="kw">fn</span> <span class="ident">test_number</span>() { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">"12.34"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Number</span>(<span class="number">12.34f64</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">" 1.0 2.0 3.0"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Number</span>(<span class="number">1.0f64</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Number</span>(<span class="number">2.0f64</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Number</span>(<span class="number">3.0f64</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">"12.34.56"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Number</span>(<span class="number">0f64</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + } + + <span class="attribute">#[<span class="ident">test</span>]</span> + <span class="kw">fn</span> <span class="ident">test_comment</span>() { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">"# some comment"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">"abc # some comment \n xyz"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"abc"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"xyz"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + } + + <span class="attribute">#[<span class="ident">test</span>]</span> + <span class="kw">fn</span> <span class="ident">test_chars</span>() { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">"a+b-c"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"a"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Char</span>(<span class="string">'+'</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"b"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Char</span>(<span class="string">'-'</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"c"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + } + + <span class="attribute">#[<span class="ident">test</span>]</span> + <span class="kw">fn</span> <span class="ident">test_whitespaces</span>() { + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">" +a b c! "</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Char</span>(<span class="string">'+'</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"a"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"b"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"c"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Char</span>(<span class="string">'!'</span>), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + + <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lex</span> <span class="op">=</span> <span class="ident">Lexer::new</span>(<span class="string">"\n a \n\r b \r \n c \r\r \n "</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"a"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"b"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Identifier</span>(<span class="string">"c"</span>.<span class="ident">into</span>()), <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Eof</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + } +} +</pre></div> +</section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="llvm_kaleidoscope_rs" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div><script src="../../main.js"></script><script src="../../source-script.js"></script><script src="../../source-files.js"></script></body></html>
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