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Diffstat (limited to 'src/llvm_kaleidoscope_rs/lexer.rs.html')
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1 files changed, 170 insertions, 116 deletions
diff --git a/src/llvm_kaleidoscope_rs/lexer.rs.html b/src/llvm_kaleidoscope_rs/lexer.rs.html index 4b13fd9..2249ba0 100644 --- a/src/llvm_kaleidoscope_rs/lexer.rs.html +++ b/src/llvm_kaleidoscope_rs/lexer.rs.html @@ -1,102 +1,108 @@ -<!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 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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"> 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-<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> +<!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="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin 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class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><button type="button" id="help-button" title="help">?</button><div id="settings-menu" tabindex="-1"> + <a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div> + </div></form></nav></div><section id="main-content" 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> @@ -179,8 +185,32 @@ <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 id="182">182</span> +<span id="183">183</span> +<span id="184">184</span> +<span id="185">185</span> +<span id="186">186</span> +<span id="187">187</span> +<span id="188">188</span> +<span id="189">189</span> +<span id="190">190</span> +<span id="191">191</span> +<span id="192">192</span> +<span id="193">193</span> +<span id="194">194</span> +<span id="195">195</span> +<span id="196">196</span> +<span id="197">197</span> +<span id="198">198</span> +<span id="199">199</span> +<span id="200">200</span> +<span id="201">201</span> +<span id="202">202</span> +<span id="203">203</span> +<span id="204">204</span> +<span id="205">205</span> +<span id="206">206</span> +</pre><pre class="rust"><code><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>, @@ -188,6 +218,11 @@ <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="ident">If</span>, + <span class="ident">Then</span>, + <span class="ident">Else</span>, + <span class="ident">For</span>, + <span class="ident">In</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> @@ -202,12 +237,12 @@ <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">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="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="kw">fn</span> <span class="ident">step</span>(<span class="kw-2">&mut</span> <span class="self">self</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> } @@ -215,7 +250,7 @@ <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="kw">pub</span> <span class="kw">fn</span> <span class="ident">gettok</span>(<span class="kw-2">&mut</span> <span class="self">self</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>(); @@ -242,21 +277,26 @@ } <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="string">"def"</span> => <span class="kw">return</span> <span class="ident">Token::Def</span>, + <span class="string">"extern"</span> => <span class="kw">return</span> <span class="ident">Token::Extern</span>, + <span class="string">"if"</span> => <span class="kw">return</span> <span class="ident">Token::If</span>, + <span class="string">"then"</span> => <span class="kw">return</span> <span class="ident">Token::Then</span>, + <span class="string">"else"</span> => <span class="kw">return</span> <span class="ident">Token::Else</span>, + <span class="string">"for"</span> => <span class="kw">return</span> <span class="ident">Token::For</span>, + <span class="string">"in"</span> => <span class="kw">return</span> <span class="ident">Token::In</span>, + <span class="kw">_</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">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="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="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="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>; @@ -268,12 +308,12 @@ } <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">if</span> <span class="ident">last_char</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="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="string">'\r'</span> <span class="op">|</span><span class="op">|</span> <span class="ident">c</span> <span class="op">==</span> <span class="string">'\n'</span> => <span class="kw">return</span> <span class="self">self</span>.<span class="ident">gettok</span>(), + <span class="prelude-val">None</span> => <span class="kw">return</span> <span class="ident">Token::Eof</span>, + <span class="kw">_</span> => { <span class="comment">/* consume comment */</span> } } } } @@ -360,8 +400,22 @@ <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_ite</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">"if then else"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::If</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Then</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::Else</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_for</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">"for in"</span>.<span class="ident">chars</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::For</span>, <span class="ident">lex</span>.<span class="ident">gettok</span>()); + <span class="macro">assert_eq!</span>(<span class="ident">Token::In</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> +</code></pre></div> +</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="llvm_kaleidoscope_rs" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.63.0 (4b91a6ea7 2022-08-08)" ></div> </body></html>
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