| <!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 `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/prost-0.9.0/src/encoding.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>encoding.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 href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></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"><a class="sidebar-logo" href="../../prost/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../prost/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form 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"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><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><section id="main-content" class="content"><div class="example-wrap"><pre class="src-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> |
| <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> |
| <span id="207">207</span> |
| <span id="208">208</span> |
| <span id="209">209</span> |
| <span id="210">210</span> |
| <span id="211">211</span> |
| <span id="212">212</span> |
| <span id="213">213</span> |
| <span id="214">214</span> |
| <span id="215">215</span> |
| <span id="216">216</span> |
| <span id="217">217</span> |
| <span id="218">218</span> |
| <span id="219">219</span> |
| <span id="220">220</span> |
| <span id="221">221</span> |
| <span id="222">222</span> |
| <span id="223">223</span> |
| <span id="224">224</span> |
| <span id="225">225</span> |
| <span id="226">226</span> |
| <span id="227">227</span> |
| <span id="228">228</span> |
| <span id="229">229</span> |
| <span id="230">230</span> |
| <span id="231">231</span> |
| <span id="232">232</span> |
| <span id="233">233</span> |
| <span id="234">234</span> |
| <span id="235">235</span> |
| <span id="236">236</span> |
| <span id="237">237</span> |
| <span id="238">238</span> |
| <span id="239">239</span> |
| <span id="240">240</span> |
| <span id="241">241</span> |
| <span id="242">242</span> |
| <span id="243">243</span> |
| <span id="244">244</span> |
| <span id="245">245</span> |
| <span id="246">246</span> |
| <span id="247">247</span> |
| <span id="248">248</span> |
| <span id="249">249</span> |
| <span id="250">250</span> |
| <span id="251">251</span> |
| <span id="252">252</span> |
| <span id="253">253</span> |
| <span id="254">254</span> |
| <span id="255">255</span> |
| <span id="256">256</span> |
| <span id="257">257</span> |
| <span id="258">258</span> |
| <span id="259">259</span> |
| <span id="260">260</span> |
| <span id="261">261</span> |
| <span id="262">262</span> |
| <span id="263">263</span> |
| <span id="264">264</span> |
| <span id="265">265</span> |
| <span id="266">266</span> |
| <span id="267">267</span> |
| <span id="268">268</span> |
| <span id="269">269</span> |
| <span id="270">270</span> |
| <span id="271">271</span> |
| <span id="272">272</span> |
| <span id="273">273</span> |
| <span id="274">274</span> |
| <span id="275">275</span> |
| <span id="276">276</span> |
| <span id="277">277</span> |
| <span id="278">278</span> |
| <span id="279">279</span> |
| <span id="280">280</span> |
| <span id="281">281</span> |
| <span id="282">282</span> |
| <span id="283">283</span> |
| <span id="284">284</span> |
| <span id="285">285</span> |
| <span id="286">286</span> |
| <span id="287">287</span> |
| <span id="288">288</span> |
| <span id="289">289</span> |
| <span id="290">290</span> |
| <span id="291">291</span> |
| <span id="292">292</span> |
| <span id="293">293</span> |
| <span id="294">294</span> |
| <span id="295">295</span> |
| <span id="296">296</span> |
| <span id="297">297</span> |
| <span id="298">298</span> |
| <span id="299">299</span> |
| <span id="300">300</span> |
| <span id="301">301</span> |
| <span id="302">302</span> |
| <span id="303">303</span> |
| <span id="304">304</span> |
| <span id="305">305</span> |
| <span id="306">306</span> |
| <span id="307">307</span> |
| <span id="308">308</span> |
| <span id="309">309</span> |
| <span id="310">310</span> |
| <span id="311">311</span> |
| <span id="312">312</span> |
| <span id="313">313</span> |
| <span id="314">314</span> |
| <span id="315">315</span> |
| <span id="316">316</span> |
| <span id="317">317</span> |
| <span id="318">318</span> |
| <span id="319">319</span> |
| <span id="320">320</span> |
| <span id="321">321</span> |
| <span id="322">322</span> |
| <span id="323">323</span> |
| <span id="324">324</span> |
| <span id="325">325</span> |
| <span id="326">326</span> |
| <span id="327">327</span> |
| <span id="328">328</span> |
| <span id="329">329</span> |
| <span id="330">330</span> |
| <span id="331">331</span> |
| <span id="332">332</span> |
| <span id="333">333</span> |
| <span id="334">334</span> |
| <span id="335">335</span> |
| <span id="336">336</span> |
| <span id="337">337</span> |
| <span id="338">338</span> |
| <span id="339">339</span> |
| <span id="340">340</span> |
| <span id="341">341</span> |
| <span id="342">342</span> |
| <span id="343">343</span> |
| <span id="344">344</span> |
| <span id="345">345</span> |
| <span id="346">346</span> |
| <span id="347">347</span> |
| <span id="348">348</span> |
| <span id="349">349</span> |
| <span id="350">350</span> |
| <span id="351">351</span> |
| <span id="352">352</span> |
| <span id="353">353</span> |
| <span id="354">354</span> |
| <span id="355">355</span> |
| <span id="356">356</span> |
| <span id="357">357</span> |
| <span id="358">358</span> |
| <span id="359">359</span> |
| <span id="360">360</span> |
| <span id="361">361</span> |
| <span id="362">362</span> |
| <span id="363">363</span> |
| <span id="364">364</span> |
| <span id="365">365</span> |
| <span id="366">366</span> |
| <span id="367">367</span> |
| <span id="368">368</span> |
| <span id="369">369</span> |
| <span id="370">370</span> |
| <span id="371">371</span> |
| <span id="372">372</span> |
| <span id="373">373</span> |
| <span id="374">374</span> |
| <span id="375">375</span> |
| <span id="376">376</span> |
| <span id="377">377</span> |
| <span id="378">378</span> |
| <span id="379">379</span> |
| <span id="380">380</span> |
| <span id="381">381</span> |
| <span id="382">382</span> |
| <span id="383">383</span> |
| <span id="384">384</span> |
| <span id="385">385</span> |
| <span id="386">386</span> |
| <span id="387">387</span> |
| <span id="388">388</span> |
| <span id="389">389</span> |
| <span id="390">390</span> |
| <span id="391">391</span> |
| <span id="392">392</span> |
| <span id="393">393</span> |
| <span id="394">394</span> |
| <span id="395">395</span> |
| <span id="396">396</span> |
| <span id="397">397</span> |
| <span id="398">398</span> |
| <span id="399">399</span> |
| <span id="400">400</span> |
| <span id="401">401</span> |
| <span id="402">402</span> |
| <span id="403">403</span> |
| <span id="404">404</span> |
| <span id="405">405</span> |
| <span id="406">406</span> |
| <span id="407">407</span> |
| <span id="408">408</span> |
| <span id="409">409</span> |
| <span id="410">410</span> |
| <span id="411">411</span> |
| <span id="412">412</span> |
| <span id="413">413</span> |
| <span id="414">414</span> |
| <span id="415">415</span> |
| <span id="416">416</span> |
| <span id="417">417</span> |
| <span id="418">418</span> |
| <span id="419">419</span> |
| <span id="420">420</span> |
| <span id="421">421</span> |
| <span id="422">422</span> |
| <span id="423">423</span> |
| <span id="424">424</span> |
| <span id="425">425</span> |
| <span id="426">426</span> |
| <span id="427">427</span> |
| <span id="428">428</span> |
| <span id="429">429</span> |
| <span id="430">430</span> |
| <span id="431">431</span> |
| <span id="432">432</span> |
| <span id="433">433</span> |
| <span id="434">434</span> |
| <span id="435">435</span> |
| <span id="436">436</span> |
| <span id="437">437</span> |
| <span id="438">438</span> |
| <span id="439">439</span> |
| <span id="440">440</span> |
| <span id="441">441</span> |
| <span id="442">442</span> |
| <span id="443">443</span> |
| <span id="444">444</span> |
| <span id="445">445</span> |
| <span id="446">446</span> |
| <span id="447">447</span> |
| <span id="448">448</span> |
| <span id="449">449</span> |
| <span id="450">450</span> |
| <span id="451">451</span> |
| <span id="452">452</span> |
| <span id="453">453</span> |
| <span id="454">454</span> |
| <span id="455">455</span> |
| <span id="456">456</span> |
| <span id="457">457</span> |
| <span id="458">458</span> |
| <span id="459">459</span> |
| <span id="460">460</span> |
| <span id="461">461</span> |
| <span id="462">462</span> |
| <span id="463">463</span> |
| <span id="464">464</span> |
| <span id="465">465</span> |
| <span id="466">466</span> |
| <span id="467">467</span> |
| <span id="468">468</span> |
| <span id="469">469</span> |
| <span id="470">470</span> |
| <span id="471">471</span> |
| <span id="472">472</span> |
| <span id="473">473</span> |
| <span id="474">474</span> |
| <span id="475">475</span> |
| <span id="476">476</span> |
| <span id="477">477</span> |
| <span id="478">478</span> |
| <span id="479">479</span> |
| <span id="480">480</span> |
| <span id="481">481</span> |
| <span id="482">482</span> |
| <span id="483">483</span> |
| <span id="484">484</span> |
| <span id="485">485</span> |
| <span id="486">486</span> |
| <span id="487">487</span> |
| <span id="488">488</span> |
| <span id="489">489</span> |
| <span id="490">490</span> |
| <span id="491">491</span> |
| <span id="492">492</span> |
| <span id="493">493</span> |
| <span id="494">494</span> |
| <span id="495">495</span> |
| <span id="496">496</span> |
| <span id="497">497</span> |
| <span id="498">498</span> |
| <span id="499">499</span> |
| <span id="500">500</span> |
| <span id="501">501</span> |
| <span id="502">502</span> |
| <span id="503">503</span> |
| <span id="504">504</span> |
| <span id="505">505</span> |
| <span id="506">506</span> |
| <span id="507">507</span> |
| <span id="508">508</span> |
| <span id="509">509</span> |
| <span id="510">510</span> |
| <span id="511">511</span> |
| <span id="512">512</span> |
| <span id="513">513</span> |
| <span id="514">514</span> |
| <span id="515">515</span> |
| <span id="516">516</span> |
| <span id="517">517</span> |
| <span id="518">518</span> |
| <span id="519">519</span> |
| <span id="520">520</span> |
| <span id="521">521</span> |
| <span id="522">522</span> |
| <span id="523">523</span> |
| <span id="524">524</span> |
| <span id="525">525</span> |
| <span id="526">526</span> |
| <span id="527">527</span> |
| <span id="528">528</span> |
| <span id="529">529</span> |
| <span id="530">530</span> |
| <span id="531">531</span> |
| <span id="532">532</span> |
| <span id="533">533</span> |
| <span id="534">534</span> |
| <span id="535">535</span> |
| <span id="536">536</span> |
| <span id="537">537</span> |
| <span id="538">538</span> |
| <span id="539">539</span> |
| <span id="540">540</span> |
| <span id="541">541</span> |
| <span id="542">542</span> |
| <span id="543">543</span> |
| <span id="544">544</span> |
| <span id="545">545</span> |
| <span id="546">546</span> |
| <span id="547">547</span> |
| <span id="548">548</span> |
| <span id="549">549</span> |
| <span id="550">550</span> |
| <span id="551">551</span> |
| <span id="552">552</span> |
| <span id="553">553</span> |
| <span id="554">554</span> |
| <span id="555">555</span> |
| <span id="556">556</span> |
| <span id="557">557</span> |
| <span id="558">558</span> |
| <span id="559">559</span> |
| <span id="560">560</span> |
| <span id="561">561</span> |
| <span id="562">562</span> |
| <span id="563">563</span> |
| <span id="564">564</span> |
| <span id="565">565</span> |
| <span id="566">566</span> |
| <span id="567">567</span> |
| <span id="568">568</span> |
| <span id="569">569</span> |
| <span id="570">570</span> |
| <span id="571">571</span> |
| <span id="572">572</span> |
| <span id="573">573</span> |
| <span id="574">574</span> |
| <span id="575">575</span> |
| <span id="576">576</span> |
| <span id="577">577</span> |
| <span id="578">578</span> |
| <span id="579">579</span> |
| <span id="580">580</span> |
| <span id="581">581</span> |
| <span id="582">582</span> |
| <span id="583">583</span> |
| <span id="584">584</span> |
| <span id="585">585</span> |
| <span id="586">586</span> |
| <span id="587">587</span> |
| <span id="588">588</span> |
| <span id="589">589</span> |
| <span id="590">590</span> |
| <span id="591">591</span> |
| <span id="592">592</span> |
| <span id="593">593</span> |
| <span id="594">594</span> |
| <span id="595">595</span> |
| <span id="596">596</span> |
| <span id="597">597</span> |
| <span id="598">598</span> |
| <span id="599">599</span> |
| <span id="600">600</span> |
| <span id="601">601</span> |
| <span id="602">602</span> |
| <span id="603">603</span> |
| <span id="604">604</span> |
| <span id="605">605</span> |
| <span id="606">606</span> |
| <span id="607">607</span> |
| <span id="608">608</span> |
| <span id="609">609</span> |
| <span id="610">610</span> |
| <span id="611">611</span> |
| <span id="612">612</span> |
| <span id="613">613</span> |
| <span id="614">614</span> |
| <span id="615">615</span> |
| <span id="616">616</span> |
| <span id="617">617</span> |
| <span id="618">618</span> |
| <span id="619">619</span> |
| <span id="620">620</span> |
| <span id="621">621</span> |
| <span id="622">622</span> |
| <span id="623">623</span> |
| <span id="624">624</span> |
| <span id="625">625</span> |
| <span id="626">626</span> |
| <span id="627">627</span> |
| <span id="628">628</span> |
| <span id="629">629</span> |
| <span id="630">630</span> |
| <span id="631">631</span> |
| <span id="632">632</span> |
| <span id="633">633</span> |
| <span id="634">634</span> |
| <span id="635">635</span> |
| <span id="636">636</span> |
| <span id="637">637</span> |
| <span id="638">638</span> |
| <span id="639">639</span> |
| <span id="640">640</span> |
| <span id="641">641</span> |
| <span id="642">642</span> |
| <span id="643">643</span> |
| <span id="644">644</span> |
| <span id="645">645</span> |
| <span id="646">646</span> |
| <span id="647">647</span> |
| <span id="648">648</span> |
| <span id="649">649</span> |
| <span id="650">650</span> |
| <span id="651">651</span> |
| <span id="652">652</span> |
| <span id="653">653</span> |
| <span id="654">654</span> |
| <span id="655">655</span> |
| <span id="656">656</span> |
| <span id="657">657</span> |
| <span id="658">658</span> |
| <span id="659">659</span> |
| <span id="660">660</span> |
| <span id="661">661</span> |
| <span id="662">662</span> |
| <span id="663">663</span> |
| <span id="664">664</span> |
| <span id="665">665</span> |
| <span id="666">666</span> |
| <span id="667">667</span> |
| <span id="668">668</span> |
| <span id="669">669</span> |
| <span id="670">670</span> |
| <span id="671">671</span> |
| <span id="672">672</span> |
| <span id="673">673</span> |
| <span id="674">674</span> |
| <span id="675">675</span> |
| <span id="676">676</span> |
| <span id="677">677</span> |
| <span id="678">678</span> |
| <span id="679">679</span> |
| <span id="680">680</span> |
| <span id="681">681</span> |
| <span id="682">682</span> |
| <span id="683">683</span> |
| <span id="684">684</span> |
| <span id="685">685</span> |
| <span id="686">686</span> |
| <span id="687">687</span> |
| <span id="688">688</span> |
| <span id="689">689</span> |
| <span id="690">690</span> |
| <span id="691">691</span> |
| <span id="692">692</span> |
| <span id="693">693</span> |
| <span id="694">694</span> |
| <span id="695">695</span> |
| <span id="696">696</span> |
| <span id="697">697</span> |
| <span id="698">698</span> |
| <span id="699">699</span> |
| <span id="700">700</span> |
| <span id="701">701</span> |
| <span id="702">702</span> |
| <span id="703">703</span> |
| <span id="704">704</span> |
| <span id="705">705</span> |
| <span id="706">706</span> |
| <span id="707">707</span> |
| <span id="708">708</span> |
| <span id="709">709</span> |
| <span id="710">710</span> |
| <span id="711">711</span> |
| <span id="712">712</span> |
| <span id="713">713</span> |
| <span id="714">714</span> |
| <span id="715">715</span> |
| <span id="716">716</span> |
| <span id="717">717</span> |
| <span id="718">718</span> |
| <span id="719">719</span> |
| <span id="720">720</span> |
| <span id="721">721</span> |
| <span id="722">722</span> |
| <span id="723">723</span> |
| <span id="724">724</span> |
| <span id="725">725</span> |
| <span id="726">726</span> |
| <span id="727">727</span> |
| <span id="728">728</span> |
| <span id="729">729</span> |
| <span id="730">730</span> |
| <span id="731">731</span> |
| <span id="732">732</span> |
| <span id="733">733</span> |
| <span id="734">734</span> |
| <span id="735">735</span> |
| <span id="736">736</span> |
| <span id="737">737</span> |
| <span id="738">738</span> |
| <span id="739">739</span> |
| <span id="740">740</span> |
| <span id="741">741</span> |
| <span id="742">742</span> |
| <span id="743">743</span> |
| <span id="744">744</span> |
| <span id="745">745</span> |
| <span id="746">746</span> |
| <span id="747">747</span> |
| <span id="748">748</span> |
| <span id="749">749</span> |
| <span id="750">750</span> |
| <span id="751">751</span> |
| <span id="752">752</span> |
| <span id="753">753</span> |
| <span id="754">754</span> |
| <span id="755">755</span> |
| <span id="756">756</span> |
| <span id="757">757</span> |
| <span id="758">758</span> |
| <span id="759">759</span> |
| <span id="760">760</span> |
| <span id="761">761</span> |
| <span id="762">762</span> |
| <span id="763">763</span> |
| <span id="764">764</span> |
| <span id="765">765</span> |
| <span id="766">766</span> |
| <span id="767">767</span> |
| <span id="768">768</span> |
| <span id="769">769</span> |
| <span id="770">770</span> |
| <span id="771">771</span> |
| <span id="772">772</span> |
| <span id="773">773</span> |
| <span id="774">774</span> |
| <span id="775">775</span> |
| <span id="776">776</span> |
| <span id="777">777</span> |
| <span id="778">778</span> |
| <span id="779">779</span> |
| <span id="780">780</span> |
| <span id="781">781</span> |
| <span id="782">782</span> |
| <span id="783">783</span> |
| <span id="784">784</span> |
| <span id="785">785</span> |
| <span id="786">786</span> |
| <span id="787">787</span> |
| <span id="788">788</span> |
| <span id="789">789</span> |
| <span id="790">790</span> |
| <span id="791">791</span> |
| <span id="792">792</span> |
| <span id="793">793</span> |
| <span id="794">794</span> |
| <span id="795">795</span> |
| <span id="796">796</span> |
| <span id="797">797</span> |
| <span id="798">798</span> |
| <span id="799">799</span> |
| <span id="800">800</span> |
| <span id="801">801</span> |
| <span id="802">802</span> |
| <span id="803">803</span> |
| <span id="804">804</span> |
| <span id="805">805</span> |
| <span id="806">806</span> |
| <span id="807">807</span> |
| <span id="808">808</span> |
| <span id="809">809</span> |
| <span id="810">810</span> |
| <span id="811">811</span> |
| <span id="812">812</span> |
| <span id="813">813</span> |
| <span id="814">814</span> |
| <span id="815">815</span> |
| <span id="816">816</span> |
| <span id="817">817</span> |
| <span id="818">818</span> |
| <span id="819">819</span> |
| <span id="820">820</span> |
| <span id="821">821</span> |
| <span id="822">822</span> |
| <span id="823">823</span> |
| <span id="824">824</span> |
| <span id="825">825</span> |
| <span id="826">826</span> |
| <span id="827">827</span> |
| <span id="828">828</span> |
| <span id="829">829</span> |
| <span id="830">830</span> |
| <span id="831">831</span> |
| <span id="832">832</span> |
| <span id="833">833</span> |
| <span id="834">834</span> |
| <span id="835">835</span> |
| <span id="836">836</span> |
| <span id="837">837</span> |
| <span id="838">838</span> |
| <span id="839">839</span> |
| <span id="840">840</span> |
| <span id="841">841</span> |
| <span id="842">842</span> |
| <span id="843">843</span> |
| <span id="844">844</span> |
| <span id="845">845</span> |
| <span id="846">846</span> |
| <span id="847">847</span> |
| <span id="848">848</span> |
| <span id="849">849</span> |
| <span id="850">850</span> |
| <span id="851">851</span> |
| <span id="852">852</span> |
| <span id="853">853</span> |
| <span id="854">854</span> |
| <span id="855">855</span> |
| <span id="856">856</span> |
| <span id="857">857</span> |
| <span id="858">858</span> |
| <span id="859">859</span> |
| <span id="860">860</span> |
| <span id="861">861</span> |
| <span id="862">862</span> |
| <span id="863">863</span> |
| <span id="864">864</span> |
| <span id="865">865</span> |
| <span id="866">866</span> |
| <span id="867">867</span> |
| <span id="868">868</span> |
| <span id="869">869</span> |
| <span id="870">870</span> |
| <span id="871">871</span> |
| <span id="872">872</span> |
| <span id="873">873</span> |
| <span id="874">874</span> |
| <span id="875">875</span> |
| <span id="876">876</span> |
| <span id="877">877</span> |
| <span id="878">878</span> |
| <span id="879">879</span> |
| <span id="880">880</span> |
| <span id="881">881</span> |
| <span id="882">882</span> |
| <span id="883">883</span> |
| <span id="884">884</span> |
| <span id="885">885</span> |
| <span id="886">886</span> |
| <span id="887">887</span> |
| <span id="888">888</span> |
| <span id="889">889</span> |
| <span id="890">890</span> |
| <span id="891">891</span> |
| <span id="892">892</span> |
| <span id="893">893</span> |
| <span id="894">894</span> |
| <span id="895">895</span> |
| <span id="896">896</span> |
| <span id="897">897</span> |
| <span id="898">898</span> |
| <span id="899">899</span> |
| <span id="900">900</span> |
| <span id="901">901</span> |
| <span id="902">902</span> |
| <span id="903">903</span> |
| <span id="904">904</span> |
| <span id="905">905</span> |
| <span id="906">906</span> |
| <span id="907">907</span> |
| <span id="908">908</span> |
| <span id="909">909</span> |
| <span id="910">910</span> |
| <span id="911">911</span> |
| <span id="912">912</span> |
| <span id="913">913</span> |
| <span id="914">914</span> |
| <span id="915">915</span> |
| <span id="916">916</span> |
| <span id="917">917</span> |
| <span id="918">918</span> |
| <span id="919">919</span> |
| <span id="920">920</span> |
| <span id="921">921</span> |
| <span id="922">922</span> |
| <span id="923">923</span> |
| <span id="924">924</span> |
| <span id="925">925</span> |
| <span id="926">926</span> |
| <span id="927">927</span> |
| <span id="928">928</span> |
| <span id="929">929</span> |
| <span id="930">930</span> |
| <span id="931">931</span> |
| <span id="932">932</span> |
| <span id="933">933</span> |
| <span id="934">934</span> |
| <span id="935">935</span> |
| <span id="936">936</span> |
| <span id="937">937</span> |
| <span id="938">938</span> |
| <span id="939">939</span> |
| <span id="940">940</span> |
| <span id="941">941</span> |
| <span id="942">942</span> |
| <span id="943">943</span> |
| <span id="944">944</span> |
| <span id="945">945</span> |
| <span id="946">946</span> |
| <span id="947">947</span> |
| <span id="948">948</span> |
| <span id="949">949</span> |
| <span id="950">950</span> |
| <span id="951">951</span> |
| <span id="952">952</span> |
| <span id="953">953</span> |
| <span id="954">954</span> |
| <span id="955">955</span> |
| <span id="956">956</span> |
| <span id="957">957</span> |
| <span id="958">958</span> |
| <span id="959">959</span> |
| <span id="960">960</span> |
| <span id="961">961</span> |
| <span id="962">962</span> |
| <span id="963">963</span> |
| <span id="964">964</span> |
| <span id="965">965</span> |
| <span id="966">966</span> |
| <span id="967">967</span> |
| <span id="968">968</span> |
| <span id="969">969</span> |
| <span id="970">970</span> |
| <span id="971">971</span> |
| <span id="972">972</span> |
| <span id="973">973</span> |
| <span id="974">974</span> |
| <span id="975">975</span> |
| <span id="976">976</span> |
| <span id="977">977</span> |
| <span id="978">978</span> |
| <span id="979">979</span> |
| <span id="980">980</span> |
| <span id="981">981</span> |
| <span id="982">982</span> |
| <span id="983">983</span> |
| <span id="984">984</span> |
| <span id="985">985</span> |
| <span id="986">986</span> |
| <span id="987">987</span> |
| <span id="988">988</span> |
| <span id="989">989</span> |
| <span id="990">990</span> |
| <span id="991">991</span> |
| <span id="992">992</span> |
| <span id="993">993</span> |
| <span id="994">994</span> |
| <span id="995">995</span> |
| <span id="996">996</span> |
| <span id="997">997</span> |
| <span id="998">998</span> |
| <span id="999">999</span> |
| <span id="1000">1000</span> |
| <span id="1001">1001</span> |
| <span id="1002">1002</span> |
| <span id="1003">1003</span> |
| <span id="1004">1004</span> |
| <span id="1005">1005</span> |
| <span id="1006">1006</span> |
| <span id="1007">1007</span> |
| <span id="1008">1008</span> |
| <span id="1009">1009</span> |
| <span id="1010">1010</span> |
| <span id="1011">1011</span> |
| <span id="1012">1012</span> |
| <span id="1013">1013</span> |
| <span id="1014">1014</span> |
| <span id="1015">1015</span> |
| <span id="1016">1016</span> |
| <span id="1017">1017</span> |
| <span id="1018">1018</span> |
| <span id="1019">1019</span> |
| <span id="1020">1020</span> |
| <span id="1021">1021</span> |
| <span id="1022">1022</span> |
| <span id="1023">1023</span> |
| <span id="1024">1024</span> |
| <span id="1025">1025</span> |
| <span id="1026">1026</span> |
| <span id="1027">1027</span> |
| <span id="1028">1028</span> |
| <span id="1029">1029</span> |
| <span id="1030">1030</span> |
| <span id="1031">1031</span> |
| <span id="1032">1032</span> |
| <span id="1033">1033</span> |
| <span id="1034">1034</span> |
| <span id="1035">1035</span> |
| <span id="1036">1036</span> |
| <span id="1037">1037</span> |
| <span id="1038">1038</span> |
| <span id="1039">1039</span> |
| <span id="1040">1040</span> |
| <span id="1041">1041</span> |
| <span id="1042">1042</span> |
| <span id="1043">1043</span> |
| <span id="1044">1044</span> |
| <span id="1045">1045</span> |
| <span id="1046">1046</span> |
| <span id="1047">1047</span> |
| <span id="1048">1048</span> |
| <span id="1049">1049</span> |
| <span id="1050">1050</span> |
| <span id="1051">1051</span> |
| <span id="1052">1052</span> |
| <span id="1053">1053</span> |
| <span id="1054">1054</span> |
| <span id="1055">1055</span> |
| <span id="1056">1056</span> |
| <span id="1057">1057</span> |
| <span id="1058">1058</span> |
| <span id="1059">1059</span> |
| <span id="1060">1060</span> |
| <span id="1061">1061</span> |
| <span id="1062">1062</span> |
| <span id="1063">1063</span> |
| <span id="1064">1064</span> |
| <span id="1065">1065</span> |
| <span id="1066">1066</span> |
| <span id="1067">1067</span> |
| <span id="1068">1068</span> |
| <span id="1069">1069</span> |
| <span id="1070">1070</span> |
| <span id="1071">1071</span> |
| <span id="1072">1072</span> |
| <span id="1073">1073</span> |
| <span id="1074">1074</span> |
| <span id="1075">1075</span> |
| <span id="1076">1076</span> |
| <span id="1077">1077</span> |
| <span id="1078">1078</span> |
| <span id="1079">1079</span> |
| <span id="1080">1080</span> |
| <span id="1081">1081</span> |
| <span id="1082">1082</span> |
| <span id="1083">1083</span> |
| <span id="1084">1084</span> |
| <span id="1085">1085</span> |
| <span id="1086">1086</span> |
| <span id="1087">1087</span> |
| <span id="1088">1088</span> |
| <span id="1089">1089</span> |
| <span id="1090">1090</span> |
| <span id="1091">1091</span> |
| <span id="1092">1092</span> |
| <span id="1093">1093</span> |
| <span id="1094">1094</span> |
| <span id="1095">1095</span> |
| <span id="1096">1096</span> |
| <span id="1097">1097</span> |
| <span id="1098">1098</span> |
| <span id="1099">1099</span> |
| <span id="1100">1100</span> |
| <span id="1101">1101</span> |
| <span id="1102">1102</span> |
| <span id="1103">1103</span> |
| <span id="1104">1104</span> |
| <span id="1105">1105</span> |
| <span id="1106">1106</span> |
| <span id="1107">1107</span> |
| <span id="1108">1108</span> |
| <span id="1109">1109</span> |
| <span id="1110">1110</span> |
| <span id="1111">1111</span> |
| <span id="1112">1112</span> |
| <span id="1113">1113</span> |
| <span id="1114">1114</span> |
| <span id="1115">1115</span> |
| <span id="1116">1116</span> |
| <span id="1117">1117</span> |
| <span id="1118">1118</span> |
| <span id="1119">1119</span> |
| <span id="1120">1120</span> |
| <span id="1121">1121</span> |
| <span id="1122">1122</span> |
| <span id="1123">1123</span> |
| <span id="1124">1124</span> |
| <span id="1125">1125</span> |
| <span id="1126">1126</span> |
| <span id="1127">1127</span> |
| <span id="1128">1128</span> |
| <span id="1129">1129</span> |
| <span id="1130">1130</span> |
| <span id="1131">1131</span> |
| <span id="1132">1132</span> |
| <span id="1133">1133</span> |
| <span id="1134">1134</span> |
| <span id="1135">1135</span> |
| <span id="1136">1136</span> |
| <span id="1137">1137</span> |
| <span id="1138">1138</span> |
| <span id="1139">1139</span> |
| <span id="1140">1140</span> |
| <span id="1141">1141</span> |
| <span id="1142">1142</span> |
| <span id="1143">1143</span> |
| <span id="1144">1144</span> |
| <span id="1145">1145</span> |
| <span id="1146">1146</span> |
| <span id="1147">1147</span> |
| <span id="1148">1148</span> |
| <span id="1149">1149</span> |
| <span id="1150">1150</span> |
| <span id="1151">1151</span> |
| <span id="1152">1152</span> |
| <span id="1153">1153</span> |
| <span id="1154">1154</span> |
| <span id="1155">1155</span> |
| <span id="1156">1156</span> |
| <span id="1157">1157</span> |
| <span id="1158">1158</span> |
| <span id="1159">1159</span> |
| <span id="1160">1160</span> |
| <span id="1161">1161</span> |
| <span id="1162">1162</span> |
| <span id="1163">1163</span> |
| <span id="1164">1164</span> |
| <span id="1165">1165</span> |
| <span id="1166">1166</span> |
| <span id="1167">1167</span> |
| <span id="1168">1168</span> |
| <span id="1169">1169</span> |
| <span id="1170">1170</span> |
| <span id="1171">1171</span> |
| <span id="1172">1172</span> |
| <span id="1173">1173</span> |
| <span id="1174">1174</span> |
| <span id="1175">1175</span> |
| <span id="1176">1176</span> |
| <span id="1177">1177</span> |
| <span id="1178">1178</span> |
| <span id="1179">1179</span> |
| <span id="1180">1180</span> |
| <span id="1181">1181</span> |
| <span id="1182">1182</span> |
| <span id="1183">1183</span> |
| <span id="1184">1184</span> |
| <span id="1185">1185</span> |
| <span id="1186">1186</span> |
| <span id="1187">1187</span> |
| <span id="1188">1188</span> |
| <span id="1189">1189</span> |
| <span id="1190">1190</span> |
| <span id="1191">1191</span> |
| <span id="1192">1192</span> |
| <span id="1193">1193</span> |
| <span id="1194">1194</span> |
| <span id="1195">1195</span> |
| <span id="1196">1196</span> |
| <span id="1197">1197</span> |
| <span id="1198">1198</span> |
| <span id="1199">1199</span> |
| <span id="1200">1200</span> |
| <span id="1201">1201</span> |
| <span id="1202">1202</span> |
| <span id="1203">1203</span> |
| <span id="1204">1204</span> |
| <span id="1205">1205</span> |
| <span id="1206">1206</span> |
| <span id="1207">1207</span> |
| <span id="1208">1208</span> |
| <span id="1209">1209</span> |
| <span id="1210">1210</span> |
| <span id="1211">1211</span> |
| <span id="1212">1212</span> |
| <span id="1213">1213</span> |
| <span id="1214">1214</span> |
| <span id="1215">1215</span> |
| <span id="1216">1216</span> |
| <span id="1217">1217</span> |
| <span id="1218">1218</span> |
| <span id="1219">1219</span> |
| <span id="1220">1220</span> |
| <span id="1221">1221</span> |
| <span id="1222">1222</span> |
| <span id="1223">1223</span> |
| <span id="1224">1224</span> |
| <span id="1225">1225</span> |
| <span id="1226">1226</span> |
| <span id="1227">1227</span> |
| <span id="1228">1228</span> |
| <span id="1229">1229</span> |
| <span id="1230">1230</span> |
| <span id="1231">1231</span> |
| <span id="1232">1232</span> |
| <span id="1233">1233</span> |
| <span id="1234">1234</span> |
| <span id="1235">1235</span> |
| <span id="1236">1236</span> |
| <span id="1237">1237</span> |
| <span id="1238">1238</span> |
| <span id="1239">1239</span> |
| <span id="1240">1240</span> |
| <span id="1241">1241</span> |
| <span id="1242">1242</span> |
| <span id="1243">1243</span> |
| <span id="1244">1244</span> |
| <span id="1245">1245</span> |
| <span id="1246">1246</span> |
| <span id="1247">1247</span> |
| <span id="1248">1248</span> |
| <span id="1249">1249</span> |
| <span id="1250">1250</span> |
| <span id="1251">1251</span> |
| <span id="1252">1252</span> |
| <span id="1253">1253</span> |
| <span id="1254">1254</span> |
| <span id="1255">1255</span> |
| <span id="1256">1256</span> |
| <span id="1257">1257</span> |
| <span id="1258">1258</span> |
| <span id="1259">1259</span> |
| <span id="1260">1260</span> |
| <span id="1261">1261</span> |
| <span id="1262">1262</span> |
| <span id="1263">1263</span> |
| <span id="1264">1264</span> |
| <span id="1265">1265</span> |
| <span id="1266">1266</span> |
| <span id="1267">1267</span> |
| <span id="1268">1268</span> |
| <span id="1269">1269</span> |
| <span id="1270">1270</span> |
| <span id="1271">1271</span> |
| <span id="1272">1272</span> |
| <span id="1273">1273</span> |
| <span id="1274">1274</span> |
| <span id="1275">1275</span> |
| <span id="1276">1276</span> |
| <span id="1277">1277</span> |
| <span id="1278">1278</span> |
| <span id="1279">1279</span> |
| <span id="1280">1280</span> |
| <span id="1281">1281</span> |
| <span id="1282">1282</span> |
| <span id="1283">1283</span> |
| <span id="1284">1284</span> |
| <span id="1285">1285</span> |
| <span id="1286">1286</span> |
| <span id="1287">1287</span> |
| <span id="1288">1288</span> |
| <span id="1289">1289</span> |
| <span id="1290">1290</span> |
| <span id="1291">1291</span> |
| <span id="1292">1292</span> |
| <span id="1293">1293</span> |
| <span id="1294">1294</span> |
| <span id="1295">1295</span> |
| <span id="1296">1296</span> |
| <span id="1297">1297</span> |
| <span id="1298">1298</span> |
| <span id="1299">1299</span> |
| <span id="1300">1300</span> |
| <span id="1301">1301</span> |
| <span id="1302">1302</span> |
| <span id="1303">1303</span> |
| <span id="1304">1304</span> |
| <span id="1305">1305</span> |
| <span id="1306">1306</span> |
| <span id="1307">1307</span> |
| <span id="1308">1308</span> |
| <span id="1309">1309</span> |
| <span id="1310">1310</span> |
| <span id="1311">1311</span> |
| <span id="1312">1312</span> |
| <span id="1313">1313</span> |
| <span id="1314">1314</span> |
| <span id="1315">1315</span> |
| <span id="1316">1316</span> |
| <span id="1317">1317</span> |
| <span id="1318">1318</span> |
| <span id="1319">1319</span> |
| <span id="1320">1320</span> |
| <span id="1321">1321</span> |
| <span id="1322">1322</span> |
| <span id="1323">1323</span> |
| <span id="1324">1324</span> |
| <span id="1325">1325</span> |
| <span id="1326">1326</span> |
| <span id="1327">1327</span> |
| <span id="1328">1328</span> |
| <span id="1329">1329</span> |
| <span id="1330">1330</span> |
| <span id="1331">1331</span> |
| <span id="1332">1332</span> |
| <span id="1333">1333</span> |
| <span id="1334">1334</span> |
| <span id="1335">1335</span> |
| <span id="1336">1336</span> |
| <span id="1337">1337</span> |
| <span id="1338">1338</span> |
| <span id="1339">1339</span> |
| <span id="1340">1340</span> |
| <span id="1341">1341</span> |
| <span id="1342">1342</span> |
| <span id="1343">1343</span> |
| <span id="1344">1344</span> |
| <span id="1345">1345</span> |
| <span id="1346">1346</span> |
| <span id="1347">1347</span> |
| <span id="1348">1348</span> |
| <span id="1349">1349</span> |
| <span id="1350">1350</span> |
| <span id="1351">1351</span> |
| <span id="1352">1352</span> |
| <span id="1353">1353</span> |
| <span id="1354">1354</span> |
| <span id="1355">1355</span> |
| <span id="1356">1356</span> |
| <span id="1357">1357</span> |
| <span id="1358">1358</span> |
| <span id="1359">1359</span> |
| <span id="1360">1360</span> |
| <span id="1361">1361</span> |
| <span id="1362">1362</span> |
| <span id="1363">1363</span> |
| <span id="1364">1364</span> |
| <span id="1365">1365</span> |
| <span id="1366">1366</span> |
| <span id="1367">1367</span> |
| <span id="1368">1368</span> |
| <span id="1369">1369</span> |
| <span id="1370">1370</span> |
| <span id="1371">1371</span> |
| <span id="1372">1372</span> |
| <span id="1373">1373</span> |
| <span id="1374">1374</span> |
| <span id="1375">1375</span> |
| <span id="1376">1376</span> |
| <span id="1377">1377</span> |
| <span id="1378">1378</span> |
| <span id="1379">1379</span> |
| <span id="1380">1380</span> |
| <span id="1381">1381</span> |
| <span id="1382">1382</span> |
| <span id="1383">1383</span> |
| <span id="1384">1384</span> |
| <span id="1385">1385</span> |
| <span id="1386">1386</span> |
| <span id="1387">1387</span> |
| <span id="1388">1388</span> |
| <span id="1389">1389</span> |
| <span id="1390">1390</span> |
| <span id="1391">1391</span> |
| <span id="1392">1392</span> |
| <span id="1393">1393</span> |
| <span id="1394">1394</span> |
| <span id="1395">1395</span> |
| <span id="1396">1396</span> |
| <span id="1397">1397</span> |
| <span id="1398">1398</span> |
| <span id="1399">1399</span> |
| <span id="1400">1400</span> |
| <span id="1401">1401</span> |
| <span id="1402">1402</span> |
| <span id="1403">1403</span> |
| <span id="1404">1404</span> |
| <span id="1405">1405</span> |
| <span id="1406">1406</span> |
| <span id="1407">1407</span> |
| <span id="1408">1408</span> |
| <span id="1409">1409</span> |
| <span id="1410">1410</span> |
| <span id="1411">1411</span> |
| <span id="1412">1412</span> |
| <span id="1413">1413</span> |
| <span id="1414">1414</span> |
| <span id="1415">1415</span> |
| <span id="1416">1416</span> |
| <span id="1417">1417</span> |
| <span id="1418">1418</span> |
| <span id="1419">1419</span> |
| <span id="1420">1420</span> |
| <span id="1421">1421</span> |
| <span id="1422">1422</span> |
| <span id="1423">1423</span> |
| <span id="1424">1424</span> |
| <span id="1425">1425</span> |
| <span id="1426">1426</span> |
| <span id="1427">1427</span> |
| <span id="1428">1428</span> |
| <span id="1429">1429</span> |
| <span id="1430">1430</span> |
| <span id="1431">1431</span> |
| <span id="1432">1432</span> |
| <span id="1433">1433</span> |
| <span id="1434">1434</span> |
| <span id="1435">1435</span> |
| <span id="1436">1436</span> |
| <span id="1437">1437</span> |
| <span id="1438">1438</span> |
| <span id="1439">1439</span> |
| <span id="1440">1440</span> |
| <span id="1441">1441</span> |
| <span id="1442">1442</span> |
| <span id="1443">1443</span> |
| <span id="1444">1444</span> |
| <span id="1445">1445</span> |
| <span id="1446">1446</span> |
| <span id="1447">1447</span> |
| <span id="1448">1448</span> |
| <span id="1449">1449</span> |
| <span id="1450">1450</span> |
| <span id="1451">1451</span> |
| <span id="1452">1452</span> |
| <span id="1453">1453</span> |
| <span id="1454">1454</span> |
| <span id="1455">1455</span> |
| <span id="1456">1456</span> |
| <span id="1457">1457</span> |
| <span id="1458">1458</span> |
| <span id="1459">1459</span> |
| <span id="1460">1460</span> |
| <span id="1461">1461</span> |
| <span id="1462">1462</span> |
| <span id="1463">1463</span> |
| <span id="1464">1464</span> |
| <span id="1465">1465</span> |
| <span id="1466">1466</span> |
| <span id="1467">1467</span> |
| <span id="1468">1468</span> |
| <span id="1469">1469</span> |
| <span id="1470">1470</span> |
| <span id="1471">1471</span> |
| <span id="1472">1472</span> |
| <span id="1473">1473</span> |
| <span id="1474">1474</span> |
| <span id="1475">1475</span> |
| <span id="1476">1476</span> |
| <span id="1477">1477</span> |
| <span id="1478">1478</span> |
| <span id="1479">1479</span> |
| <span id="1480">1480</span> |
| <span id="1481">1481</span> |
| <span id="1482">1482</span> |
| <span id="1483">1483</span> |
| <span id="1484">1484</span> |
| <span id="1485">1485</span> |
| <span id="1486">1486</span> |
| <span id="1487">1487</span> |
| <span id="1488">1488</span> |
| <span id="1489">1489</span> |
| <span id="1490">1490</span> |
| <span id="1491">1491</span> |
| <span id="1492">1492</span> |
| <span id="1493">1493</span> |
| <span id="1494">1494</span> |
| <span id="1495">1495</span> |
| <span id="1496">1496</span> |
| <span id="1497">1497</span> |
| <span id="1498">1498</span> |
| <span id="1499">1499</span> |
| <span id="1500">1500</span> |
| <span id="1501">1501</span> |
| <span id="1502">1502</span> |
| <span id="1503">1503</span> |
| <span id="1504">1504</span> |
| <span id="1505">1505</span> |
| <span id="1506">1506</span> |
| <span id="1507">1507</span> |
| <span id="1508">1508</span> |
| <span id="1509">1509</span> |
| <span id="1510">1510</span> |
| <span id="1511">1511</span> |
| <span id="1512">1512</span> |
| <span id="1513">1513</span> |
| <span id="1514">1514</span> |
| <span id="1515">1515</span> |
| <span id="1516">1516</span> |
| <span id="1517">1517</span> |
| <span id="1518">1518</span> |
| <span id="1519">1519</span> |
| <span id="1520">1520</span> |
| <span id="1521">1521</span> |
| <span id="1522">1522</span> |
| <span id="1523">1523</span> |
| <span id="1524">1524</span> |
| <span id="1525">1525</span> |
| <span id="1526">1526</span> |
| <span id="1527">1527</span> |
| <span id="1528">1528</span> |
| <span id="1529">1529</span> |
| <span id="1530">1530</span> |
| <span id="1531">1531</span> |
| <span id="1532">1532</span> |
| <span id="1533">1533</span> |
| <span id="1534">1534</span> |
| <span id="1535">1535</span> |
| <span id="1536">1536</span> |
| <span id="1537">1537</span> |
| <span id="1538">1538</span> |
| <span id="1539">1539</span> |
| <span id="1540">1540</span> |
| <span id="1541">1541</span> |
| <span id="1542">1542</span> |
| <span id="1543">1543</span> |
| <span id="1544">1544</span> |
| <span id="1545">1545</span> |
| <span id="1546">1546</span> |
| <span id="1547">1547</span> |
| <span id="1548">1548</span> |
| <span id="1549">1549</span> |
| <span id="1550">1550</span> |
| <span id="1551">1551</span> |
| <span id="1552">1552</span> |
| <span id="1553">1553</span> |
| <span id="1554">1554</span> |
| <span id="1555">1555</span> |
| <span id="1556">1556</span> |
| <span id="1557">1557</span> |
| <span id="1558">1558</span> |
| <span id="1559">1559</span> |
| <span id="1560">1560</span> |
| <span id="1561">1561</span> |
| <span id="1562">1562</span> |
| <span id="1563">1563</span> |
| <span id="1564">1564</span> |
| <span id="1565">1565</span> |
| <span id="1566">1566</span> |
| <span id="1567">1567</span> |
| <span id="1568">1568</span> |
| <span id="1569">1569</span> |
| <span id="1570">1570</span> |
| <span id="1571">1571</span> |
| <span id="1572">1572</span> |
| <span id="1573">1573</span> |
| <span id="1574">1574</span> |
| <span id="1575">1575</span> |
| <span id="1576">1576</span> |
| <span id="1577">1577</span> |
| <span id="1578">1578</span> |
| <span id="1579">1579</span> |
| <span id="1580">1580</span> |
| <span id="1581">1581</span> |
| <span id="1582">1582</span> |
| <span id="1583">1583</span> |
| <span id="1584">1584</span> |
| <span id="1585">1585</span> |
| <span id="1586">1586</span> |
| <span id="1587">1587</span> |
| <span id="1588">1588</span> |
| <span id="1589">1589</span> |
| <span id="1590">1590</span> |
| <span id="1591">1591</span> |
| <span id="1592">1592</span> |
| <span id="1593">1593</span> |
| <span id="1594">1594</span> |
| <span id="1595">1595</span> |
| <span id="1596">1596</span> |
| <span id="1597">1597</span> |
| <span id="1598">1598</span> |
| <span id="1599">1599</span> |
| <span id="1600">1600</span> |
| <span id="1601">1601</span> |
| <span id="1602">1602</span> |
| <span id="1603">1603</span> |
| <span id="1604">1604</span> |
| <span id="1605">1605</span> |
| <span id="1606">1606</span> |
| <span id="1607">1607</span> |
| <span id="1608">1608</span> |
| <span id="1609">1609</span> |
| <span id="1610">1610</span> |
| <span id="1611">1611</span> |
| <span id="1612">1612</span> |
| <span id="1613">1613</span> |
| <span id="1614">1614</span> |
| <span id="1615">1615</span> |
| <span id="1616">1616</span> |
| <span id="1617">1617</span> |
| <span id="1618">1618</span> |
| <span id="1619">1619</span> |
| <span id="1620">1620</span> |
| <span id="1621">1621</span> |
| <span id="1622">1622</span> |
| <span id="1623">1623</span> |
| <span id="1624">1624</span> |
| <span id="1625">1625</span> |
| <span id="1626">1626</span> |
| <span id="1627">1627</span> |
| <span id="1628">1628</span> |
| <span id="1629">1629</span> |
| <span id="1630">1630</span> |
| <span id="1631">1631</span> |
| <span id="1632">1632</span> |
| <span id="1633">1633</span> |
| <span id="1634">1634</span> |
| <span id="1635">1635</span> |
| <span id="1636">1636</span> |
| <span id="1637">1637</span> |
| <span id="1638">1638</span> |
| <span id="1639">1639</span> |
| <span id="1640">1640</span> |
| <span id="1641">1641</span> |
| <span id="1642">1642</span> |
| <span id="1643">1643</span> |
| <span id="1644">1644</span> |
| <span id="1645">1645</span> |
| <span id="1646">1646</span> |
| <span id="1647">1647</span> |
| <span id="1648">1648</span> |
| <span id="1649">1649</span> |
| <span id="1650">1650</span> |
| <span id="1651">1651</span> |
| <span id="1652">1652</span> |
| <span id="1653">1653</span> |
| <span id="1654">1654</span> |
| <span id="1655">1655</span> |
| <span id="1656">1656</span> |
| <span id="1657">1657</span> |
| <span id="1658">1658</span> |
| <span id="1659">1659</span> |
| <span id="1660">1660</span> |
| <span id="1661">1661</span> |
| <span id="1662">1662</span> |
| <span id="1663">1663</span> |
| <span id="1664">1664</span> |
| <span id="1665">1665</span> |
| <span id="1666">1666</span> |
| <span id="1667">1667</span> |
| <span id="1668">1668</span> |
| <span id="1669">1669</span> |
| <span id="1670">1670</span> |
| <span id="1671">1671</span> |
| <span id="1672">1672</span> |
| <span id="1673">1673</span> |
| <span id="1674">1674</span> |
| <span id="1675">1675</span> |
| <span id="1676">1676</span> |
| <span id="1677">1677</span> |
| <span id="1678">1678</span> |
| <span id="1679">1679</span> |
| <span id="1680">1680</span> |
| <span id="1681">1681</span> |
| <span id="1682">1682</span> |
| <span id="1683">1683</span> |
| <span id="1684">1684</span> |
| <span id="1685">1685</span> |
| <span id="1686">1686</span> |
| <span id="1687">1687</span> |
| <span id="1688">1688</span> |
| <span id="1689">1689</span> |
| <span id="1690">1690</span> |
| <span id="1691">1691</span> |
| <span id="1692">1692</span> |
| <span id="1693">1693</span> |
| <span id="1694">1694</span> |
| <span id="1695">1695</span> |
| <span id="1696">1696</span> |
| <span id="1697">1697</span> |
| <span id="1698">1698</span> |
| <span id="1699">1699</span> |
| <span id="1700">1700</span> |
| <span id="1701">1701</span> |
| <span id="1702">1702</span> |
| <span id="1703">1703</span> |
| <span id="1704">1704</span> |
| <span id="1705">1705</span> |
| <span id="1706">1706</span> |
| <span id="1707">1707</span> |
| <span id="1708">1708</span> |
| <span id="1709">1709</span> |
| <span id="1710">1710</span> |
| <span id="1711">1711</span> |
| <span id="1712">1712</span> |
| <span id="1713">1713</span> |
| <span id="1714">1714</span> |
| <span id="1715">1715</span> |
| <span id="1716">1716</span> |
| <span id="1717">1717</span> |
| <span id="1718">1718</span> |
| <span id="1719">1719</span> |
| <span id="1720">1720</span> |
| <span id="1721">1721</span> |
| <span id="1722">1722</span> |
| <span id="1723">1723</span> |
| <span id="1724">1724</span> |
| <span id="1725">1725</span> |
| <span id="1726">1726</span> |
| <span id="1727">1727</span> |
| <span id="1728">1728</span> |
| <span id="1729">1729</span> |
| <span id="1730">1730</span> |
| <span id="1731">1731</span> |
| <span id="1732">1732</span> |
| <span id="1733">1733</span> |
| <span id="1734">1734</span> |
| <span id="1735">1735</span> |
| <span id="1736">1736</span> |
| <span id="1737">1737</span> |
| <span id="1738">1738</span> |
| <span id="1739">1739</span> |
| <span id="1740">1740</span> |
| <span id="1741">1741</span> |
| <span id="1742">1742</span> |
| <span id="1743">1743</span> |
| <span id="1744">1744</span> |
| <span id="1745">1745</span> |
| <span id="1746">1746</span> |
| <span id="1747">1747</span> |
| <span id="1748">1748</span> |
| <span id="1749">1749</span> |
| <span id="1750">1750</span> |
| <span id="1751">1751</span> |
| <span id="1752">1752</span> |
| <span id="1753">1753</span> |
| <span id="1754">1754</span> |
| <span id="1755">1755</span> |
| <span id="1756">1756</span> |
| <span id="1757">1757</span> |
| <span id="1758">1758</span> |
| <span id="1759">1759</span> |
| <span id="1760">1760</span> |
| <span id="1761">1761</span> |
| <span id="1762">1762</span> |
| <span id="1763">1763</span> |
| <span id="1764">1764</span> |
| <span id="1765">1765</span> |
| <span id="1766">1766</span> |
| <span id="1767">1767</span> |
| <span id="1768">1768</span> |
| <span id="1769">1769</span> |
| <span id="1770">1770</span> |
| <span id="1771">1771</span> |
| <span id="1772">1772</span> |
| <span id="1773">1773</span> |
| <span id="1774">1774</span> |
| <span id="1775">1775</span> |
| <span id="1776">1776</span> |
| <span id="1777">1777</span> |
| <span id="1778">1778</span> |
| <span id="1779">1779</span> |
| </pre><pre class="rust"><code><span class="doccomment">//! Utility functions and types for encoding and decoding Protobuf types. |
| //! |
| //! Meant to be used only from `Message` implementations. |
| |
| </span><span class="attribute">#![allow(clippy::implicit_hasher, clippy::ptr_arg)] |
| |
| </span><span class="kw">use </span>alloc::collections::BTreeMap; |
| <span class="kw">use </span>alloc::format; |
| <span class="kw">use </span>alloc::string::String; |
| <span class="kw">use </span>alloc::vec::Vec; |
| <span class="kw">use </span>core::cmp::min; |
| <span class="kw">use </span>core::convert::TryFrom; |
| <span class="kw">use </span>core::mem; |
| <span class="kw">use </span>core::str; |
| <span class="kw">use </span>core::u32; |
| <span class="kw">use </span>core::usize; |
| |
| <span class="kw">use </span>::bytes::{Buf, BufMut, Bytes}; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::DecodeError; |
| <span class="kw">use </span><span class="kw">crate</span>::Message; |
| |
| <span class="doccomment">/// Encodes an integer value into LEB128 variable length format, and writes it to the buffer. |
| /// The buffer must have enough remaining space (maximum 10 bytes). |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encode_varint<B>(<span class="kw-2">mut </span>value: u64, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut, |
| { |
| <span class="kw">loop </span>{ |
| <span class="kw">if </span>value < <span class="number">0x80 </span>{ |
| buf.put_u8(value <span class="kw">as </span>u8); |
| <span class="kw">break</span>; |
| } <span class="kw">else </span>{ |
| buf.put_u8(((value & <span class="number">0x7F</span>) | <span class="number">0x80</span>) <span class="kw">as </span>u8); |
| value >>= <span class="number">7</span>; |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Decodes a LEB128-encoded variable length integer from the buffer. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>decode_varint<B>(buf: <span class="kw-2">&mut </span>B) -> <span class="prelude-ty">Result</span><u64, DecodeError> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="kw">let </span>bytes = buf.chunk(); |
| <span class="kw">let </span>len = bytes.len(); |
| <span class="kw">if </span>len == <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"invalid varint"</span>)); |
| } |
| |
| <span class="kw">let </span>byte = bytes[<span class="number">0</span>]; |
| <span class="kw">if </span>byte < <span class="number">0x80 </span>{ |
| buf.advance(<span class="number">1</span>); |
| <span class="prelude-val">Ok</span>(u64::from(byte)) |
| } <span class="kw">else if </span>len > <span class="number">10 </span>|| bytes[len - <span class="number">1</span>] < <span class="number">0x80 </span>{ |
| <span class="kw">let </span>(value, advance) = decode_varint_slice(bytes)<span class="question-mark">?</span>; |
| buf.advance(advance); |
| <span class="prelude-val">Ok</span>(value) |
| } <span class="kw">else </span>{ |
| decode_varint_slow(buf) |
| } |
| } |
| |
| <span class="doccomment">/// Decodes a LEB128-encoded variable length integer from the slice, returning the value and the |
| /// number of bytes read. |
| /// |
| /// Based loosely on [`ReadVarint64FromArray`][1] with a varint overflow check from |
| /// [`ConsumeVarint`][2]. |
| /// |
| /// ## Safety |
| /// |
| /// The caller must ensure that `bytes` is non-empty and either `bytes.len() >= 10` or the last |
| /// element in bytes is < `0x80`. |
| /// |
| /// [1]: https://github.com/google/protobuf/blob/3.3.x/src/google/protobuf/io/coded_stream.cc#L365-L406 |
| /// [2]: https://github.com/protocolbuffers/protobuf-go/blob/v1.27.1/encoding/protowire/wire.go#L358 |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>decode_varint_slice(bytes: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><(u64, usize), DecodeError> { |
| <span class="comment">// Fully unrolled varint decoding loop. Splitting into 32-bit pieces gives better performance. |
| |
| // Use assertions to ensure memory safety, but it should always be optimized after inline. |
| </span><span class="macro">assert!</span>(!bytes.is_empty()); |
| <span class="macro">assert!</span>(bytes.len() > <span class="number">10 </span>|| bytes[bytes.len() - <span class="number">1</span>] < <span class="number">0x80</span>); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>b: u8; |
| <span class="kw">let </span><span class="kw-2">mut </span>part0: u32; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">0</span>) }; |
| part0 = u32::from(b); |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((u64::from(part0), <span class="number">1</span>)); |
| }; |
| part0 -= <span class="number">0x80</span>; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">1</span>) }; |
| part0 += u32::from(b) << <span class="number">7</span>; |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((u64::from(part0), <span class="number">2</span>)); |
| }; |
| part0 -= <span class="number">0x80 </span><< <span class="number">7</span>; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">2</span>) }; |
| part0 += u32::from(b) << <span class="number">14</span>; |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((u64::from(part0), <span class="number">3</span>)); |
| }; |
| part0 -= <span class="number">0x80 </span><< <span class="number">14</span>; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">3</span>) }; |
| part0 += u32::from(b) << <span class="number">21</span>; |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((u64::from(part0), <span class="number">4</span>)); |
| }; |
| part0 -= <span class="number">0x80 </span><< <span class="number">21</span>; |
| <span class="kw">let </span>value = u64::from(part0); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>part1: u32; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">4</span>) }; |
| part1 = u32::from(b); |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((value + (u64::from(part1) << <span class="number">28</span>), <span class="number">5</span>)); |
| }; |
| part1 -= <span class="number">0x80</span>; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">5</span>) }; |
| part1 += u32::from(b) << <span class="number">7</span>; |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((value + (u64::from(part1) << <span class="number">28</span>), <span class="number">6</span>)); |
| }; |
| part1 -= <span class="number">0x80 </span><< <span class="number">7</span>; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">6</span>) }; |
| part1 += u32::from(b) << <span class="number">14</span>; |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((value + (u64::from(part1) << <span class="number">28</span>), <span class="number">7</span>)); |
| }; |
| part1 -= <span class="number">0x80 </span><< <span class="number">14</span>; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">7</span>) }; |
| part1 += u32::from(b) << <span class="number">21</span>; |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((value + (u64::from(part1) << <span class="number">28</span>), <span class="number">8</span>)); |
| }; |
| part1 -= <span class="number">0x80 </span><< <span class="number">21</span>; |
| <span class="kw">let </span>value = value + ((u64::from(part1)) << <span class="number">28</span>); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>part2: u32; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">8</span>) }; |
| part2 = u32::from(b); |
| <span class="kw">if </span>b < <span class="number">0x80 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((value + (u64::from(part2) << <span class="number">56</span>), <span class="number">9</span>)); |
| }; |
| part2 -= <span class="number">0x80</span>; |
| b = <span class="kw">unsafe </span>{ <span class="kw-2">*</span>bytes.get_unchecked(<span class="number">9</span>) }; |
| part2 += u32::from(b) << <span class="number">7</span>; |
| <span class="comment">// Check for u64::MAX overflow. See [`ConsumeVarint`][1] for details. |
| // [1]: https://github.com/protocolbuffers/protobuf-go/blob/v1.27.1/encoding/protowire/wire.go#L358 |
| </span><span class="kw">if </span>b < <span class="number">0x02 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((value + (u64::from(part2) << <span class="number">56</span>), <span class="number">10</span>)); |
| }; |
| |
| <span class="comment">// We have overrun the maximum size of a varint (10 bytes) or the final byte caused an overflow. |
| // Assume the data is corrupt. |
| </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"invalid varint"</span>)) |
| } |
| |
| <span class="doccomment">/// Decodes a LEB128-encoded variable length integer from the buffer, advancing the buffer as |
| /// necessary. |
| /// |
| /// Contains a varint overflow check from [`ConsumeVarint`][1]. |
| /// |
| /// [1]: https://github.com/protocolbuffers/protobuf-go/blob/v1.27.1/encoding/protowire/wire.go#L358 |
| </span><span class="attribute">#[inline(never)] |
| #[cold] |
| </span><span class="kw">fn </span>decode_varint_slow<B>(buf: <span class="kw-2">&mut </span>B) -> <span class="prelude-ty">Result</span><u64, DecodeError> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>value = <span class="number">0</span>; |
| <span class="kw">for </span>count <span class="kw">in </span><span class="number">0</span>..min(<span class="number">10</span>, buf.remaining()) { |
| <span class="kw">let </span>byte = buf.get_u8(); |
| value |= u64::from(byte & <span class="number">0x7F</span>) << (count * <span class="number">7</span>); |
| <span class="kw">if </span>byte <= <span class="number">0x7F </span>{ |
| <span class="comment">// Check for u64::MAX overflow. See [`ConsumeVarint`][1] for details. |
| // [1]: https://github.com/protocolbuffers/protobuf-go/blob/v1.27.1/encoding/protowire/wire.go#L358 |
| </span><span class="kw">if </span>count == <span class="number">9 </span>&& byte >= <span class="number">0x02 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"invalid varint"</span>)); |
| } <span class="kw">else </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(value); |
| } |
| } |
| } |
| |
| <span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"invalid varint"</span>)) |
| } |
| |
| <span class="doccomment">/// Additional information passed to every decode/merge function. |
| /// |
| /// The context should be passed by value and can be freely cloned. When passing |
| /// to a function which is decoding a nested object, then use `enter_recursion`. |
| </span><span class="attribute">#[derive(Clone, Debug)] |
| </span><span class="kw">pub struct </span>DecodeContext { |
| <span class="doccomment">/// How many times we can recurse in the current decode stack before we hit |
| /// the recursion limit. |
| /// |
| /// The recursion limit is defined by `RECURSION_LIMIT` and cannot be |
| /// customized. The recursion limit can be ignored by building the Prost |
| /// crate with the `no-recursion-limit` feature. |
| </span><span class="attribute">#[cfg(not(feature = <span class="string">"no-recursion-limit"</span>))] |
| </span>recurse_count: u32, |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>DecodeContext { |
| <span class="attribute">#[cfg(not(feature = <span class="string">"no-recursion-limit"</span>))] |
| #[inline] |
| </span><span class="kw">fn </span>default() -> DecodeContext { |
| DecodeContext { |
| recurse_count: <span class="kw">crate</span>::RECURSION_LIMIT, |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"no-recursion-limit"</span>)] |
| #[inline] |
| </span><span class="kw">fn </span>default() -> DecodeContext { |
| DecodeContext {} |
| } |
| } |
| |
| <span class="kw">impl </span>DecodeContext { |
| <span class="doccomment">/// Call this function before recursively decoding. |
| /// |
| /// There is no `exit` function since this function creates a new `DecodeContext` |
| /// to be used at the next level of recursion. Continue to use the old context |
| </span><span class="comment">// at the previous level of recursion. |
| </span><span class="attribute">#[cfg(not(feature = <span class="string">"no-recursion-limit"</span>))] |
| #[inline] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>enter_recursion(<span class="kw-2">&</span><span class="self">self</span>) -> DecodeContext { |
| DecodeContext { |
| recurse_count: <span class="self">self</span>.recurse_count - <span class="number">1</span>, |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"no-recursion-limit"</span>)] |
| #[inline] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>enter_recursion(<span class="kw-2">&</span><span class="self">self</span>) -> DecodeContext { |
| DecodeContext {} |
| } |
| |
| <span class="doccomment">/// Checks whether the recursion limit has been reached in the stack of |
| /// decodes described by the `DecodeContext` at `self.ctx`. |
| /// |
| /// Returns `Ok<()>` if it is ok to continue recursing. |
| /// Returns `Err<DecodeError>` if the recursion limit has been reached. |
| </span><span class="attribute">#[cfg(not(feature = <span class="string">"no-recursion-limit"</span>))] |
| #[inline] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>limit_reached(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), DecodeError> { |
| <span class="kw">if </span><span class="self">self</span>.recurse_count == <span class="number">0 </span>{ |
| <span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"recursion limit reached"</span>)) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"no-recursion-limit"</span>)] |
| #[inline] |
| #[allow(clippy::unnecessary_wraps)] </span><span class="comment">// needed in other features |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>limit_reached(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), DecodeError> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// Returns the encoded length of the value in LEB128 variable length format. |
| /// The returned value will be between 1 and 10, inclusive. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len_varint(value: u64) -> usize { |
| <span class="comment">// Based on [VarintSize64][1]. |
| // [1]: https://github.com/google/protobuf/blob/3.3.x/src/google/protobuf/io/coded_stream.h#L1301-L1309 |
| </span>((((value | <span class="number">1</span>).leading_zeros() ^ <span class="number">63</span>) * <span class="number">9 </span>+ <span class="number">73</span>) / <span class="number">64</span>) <span class="kw">as </span>usize |
| } |
| |
| <span class="attribute">#[derive(Clone, Copy, Debug, PartialEq)] |
| #[repr(u8)] |
| </span><span class="kw">pub enum </span>WireType { |
| Varint = <span class="number">0</span>, |
| SixtyFourBit = <span class="number">1</span>, |
| LengthDelimited = <span class="number">2</span>, |
| StartGroup = <span class="number">3</span>, |
| EndGroup = <span class="number">4</span>, |
| ThirtyTwoBit = <span class="number">5</span>, |
| } |
| |
| <span class="kw">pub const </span>MIN_TAG: u32 = <span class="number">1</span>; |
| <span class="kw">pub const </span>MAX_TAG: u32 = (<span class="number">1 </span><< <span class="number">29</span>) - <span class="number">1</span>; |
| |
| <span class="kw">impl </span>TryFrom<u64> <span class="kw">for </span>WireType { |
| <span class="kw">type </span>Error = DecodeError; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>try_from(value: u64) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, <span class="self">Self</span>::Error> { |
| <span class="kw">match </span>value { |
| <span class="number">0 </span>=> <span class="prelude-val">Ok</span>(WireType::Varint), |
| <span class="number">1 </span>=> <span class="prelude-val">Ok</span>(WireType::SixtyFourBit), |
| <span class="number">2 </span>=> <span class="prelude-val">Ok</span>(WireType::LengthDelimited), |
| <span class="number">3 </span>=> <span class="prelude-val">Ok</span>(WireType::StartGroup), |
| <span class="number">4 </span>=> <span class="prelude-val">Ok</span>(WireType::EndGroup), |
| <span class="number">5 </span>=> <span class="prelude-val">Ok</span>(WireType::ThirtyTwoBit), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(DecodeError::new(<span class="macro">format!</span>( |
| <span class="string">"invalid wire type value: {}"</span>, |
| value |
| ))), |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Encodes a Protobuf field key, which consists of a wire type designator and |
| /// the field tag. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encode_key<B>(tag: u32, wire_type: WireType, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut, |
| { |
| <span class="macro">debug_assert!</span>((MIN_TAG..=MAX_TAG).contains(<span class="kw-2">&</span>tag)); |
| <span class="kw">let </span>key = (tag << <span class="number">3</span>) | wire_type <span class="kw">as </span>u32; |
| encode_varint(u64::from(key), buf); |
| } |
| |
| <span class="doccomment">/// Decodes a Protobuf field key, which consists of a wire type designator and |
| /// the field tag. |
| </span><span class="attribute">#[inline(always)] |
| </span><span class="kw">pub fn </span>decode_key<B>(buf: <span class="kw-2">&mut </span>B) -> <span class="prelude-ty">Result</span><(u32, WireType), DecodeError> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="kw">let </span>key = decode_varint(buf)<span class="question-mark">?</span>; |
| <span class="kw">if </span>key > u64::from(u32::MAX) { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="macro">format!</span>(<span class="string">"invalid key value: {}"</span>, key))); |
| } |
| <span class="kw">let </span>wire_type = WireType::try_from(key & <span class="number">0x07</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>tag = key <span class="kw">as </span>u32 >> <span class="number">3</span>; |
| |
| <span class="kw">if </span>tag < MIN_TAG { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"invalid tag value: 0"</span>)); |
| } |
| |
| <span class="prelude-val">Ok</span>((tag, wire_type)) |
| } |
| |
| <span class="doccomment">/// Returns the width of an encoded Protobuf field key with the given tag. |
| /// The returned width will be between 1 and 5 bytes (inclusive). |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>key_len(tag: u32) -> usize { |
| encoded_len_varint(u64::from(tag << <span class="number">3</span>)) |
| } |
| |
| <span class="doccomment">/// Checks that the expected wire type matches the actual wire type, |
| /// or returns an error result. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>check_wire_type(expected: WireType, actual: WireType) -> <span class="prelude-ty">Result</span><(), DecodeError> { |
| <span class="kw">if </span>expected != actual { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="macro">format!</span>( |
| <span class="string">"invalid wire type: {:?} (expected {:?})"</span>, |
| actual, expected |
| ))); |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="doccomment">/// Helper function which abstracts reading a length delimiter prefix followed |
| /// by decoding values until the length of bytes is exhausted. |
| </span><span class="kw">pub fn </span>merge_loop<T, M, B>( |
| value: <span class="kw-2">&mut </span>T, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| <span class="kw-2">mut </span>merge: M, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>M: FnMut(<span class="kw-2">&mut </span>T, <span class="kw-2">&mut </span>B, DecodeContext) -> <span class="prelude-ty">Result</span><(), DecodeError>, |
| B: Buf, |
| { |
| <span class="kw">let </span>len = decode_varint(buf)<span class="question-mark">?</span>; |
| <span class="kw">let </span>remaining = buf.remaining(); |
| <span class="kw">if </span>len > remaining <span class="kw">as </span>u64 { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"buffer underflow"</span>)); |
| } |
| |
| <span class="kw">let </span>limit = remaining - len <span class="kw">as </span>usize; |
| <span class="kw">while </span>buf.remaining() > limit { |
| merge(value, buf, ctx.clone())<span class="question-mark">?</span>; |
| } |
| |
| <span class="kw">if </span>buf.remaining() != limit { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"delimited length exceeded"</span>)); |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>skip_field<B>( |
| wire_type: WireType, |
| tag: u32, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| ctx.limit_reached()<span class="question-mark">?</span>; |
| <span class="kw">let </span>len = <span class="kw">match </span>wire_type { |
| WireType::Varint => decode_varint(buf).map(|<span class="kw">_</span>| <span class="number">0</span>)<span class="question-mark">?</span>, |
| WireType::ThirtyTwoBit => <span class="number">4</span>, |
| WireType::SixtyFourBit => <span class="number">8</span>, |
| WireType::LengthDelimited => decode_varint(buf)<span class="question-mark">?</span>, |
| WireType::StartGroup => <span class="kw">loop </span>{ |
| <span class="kw">let </span>(inner_tag, inner_wire_type) = decode_key(buf)<span class="question-mark">?</span>; |
| <span class="kw">match </span>inner_wire_type { |
| WireType::EndGroup => { |
| <span class="kw">if </span>inner_tag != tag { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"unexpected end group tag"</span>)); |
| } |
| <span class="kw">break </span><span class="number">0</span>; |
| } |
| <span class="kw">_ </span>=> skip_field(inner_wire_type, inner_tag, buf, ctx.enter_recursion())<span class="question-mark">?</span>, |
| } |
| }, |
| WireType::EndGroup => <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"unexpected end group tag"</span>)), |
| }; |
| |
| <span class="kw">if </span>len > buf.remaining() <span class="kw">as </span>u64 { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"buffer underflow"</span>)); |
| } |
| |
| buf.advance(len <span class="kw">as </span>usize); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="doccomment">/// Helper macro which emits an `encode_repeated` function for the type. |
| </span><span class="macro">macro_rules! </span>encode_repeated { |
| (<span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="kw">pub fn </span>encode_repeated<B>(tag: u32, values: <span class="kw-2">&</span>[<span class="macro-nonterminal">$ty</span>], buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut, |
| { |
| <span class="kw">for </span>value <span class="kw">in </span>values { |
| encode(tag, value, buf); |
| } |
| } |
| }; |
| } |
| |
| <span class="doccomment">/// Helper macro which emits a `merge_repeated` function for the numeric type. |
| </span><span class="macro">macro_rules! </span>merge_repeated_numeric { |
| (<span class="macro-nonterminal">$ty</span>:ty, |
| <span class="macro-nonterminal">$wire_type</span>:expr, |
| <span class="macro-nonterminal">$merge</span>:ident, |
| <span class="macro-nonterminal">$merge_repeated</span>:ident) => { |
| <span class="kw">pub fn </span><span class="macro-nonterminal">$merge_repeated</span><B>( |
| wire_type: WireType, |
| values: <span class="kw-2">&mut </span>Vec<<span class="macro-nonterminal">$ty</span>>, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="kw">if </span>wire_type == WireType::LengthDelimited { |
| <span class="comment">// Packed. |
| </span>merge_loop(values, buf, ctx, |values, buf, ctx| { |
| <span class="kw">let </span><span class="kw-2">mut </span>value = Default::default(); |
| <span class="macro-nonterminal">$merge</span>(<span class="macro-nonterminal">$wire_type</span>, <span class="kw-2">&mut </span>value, buf, ctx)<span class="question-mark">?</span>; |
| values.push(value); |
| <span class="prelude-val">Ok</span>(()) |
| }) |
| } <span class="kw">else </span>{ |
| <span class="comment">// Unpacked. |
| </span>check_wire_type(<span class="macro-nonterminal">$wire_type</span>, wire_type)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>value = Default::default(); |
| <span class="macro-nonterminal">$merge</span>(wire_type, <span class="kw-2">&mut </span>value, buf, ctx)<span class="question-mark">?</span>; |
| values.push(value); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| }; |
| } |
| |
| <span class="doccomment">/// Macro which emits a module containing a set of encoding functions for a |
| /// variable width numeric type. |
| </span><span class="macro">macro_rules! </span>varint { |
| (<span class="macro-nonterminal">$ty</span>:ty, |
| <span class="macro-nonterminal">$proto_ty</span>:ident) => ( |
| <span class="macro">varint!</span>(<span class="macro-nonterminal">$ty</span>, |
| <span class="macro-nonterminal">$proto_ty</span>, |
| to_uint64(value) { <span class="kw-2">*</span>value <span class="kw">as </span>u64 }, |
| from_uint64(value) { value <span class="kw">as </span><span class="macro-nonterminal">$ty </span>}); |
| ); |
| |
| (<span class="macro-nonterminal">$ty</span>:ty, |
| <span class="macro-nonterminal">$proto_ty</span>:ident, |
| to_uint64(<span class="macro-nonterminal">$to_uint64_value</span>:ident) <span class="macro-nonterminal">$to_uint64</span>:expr, |
| from_uint64(<span class="macro-nonterminal">$from_uint64_value</span>:ident) <span class="macro-nonterminal">$from_uint64</span>:expr) => ( |
| |
| <span class="kw">pub mod </span><span class="macro-nonterminal">$proto_ty </span>{ |
| <span class="kw">use </span><span class="kw">crate</span>::encoding::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub fn </span>encode<B>(tag: u32, <span class="macro-nonterminal">$to_uint64_value</span>: <span class="kw-2">&</span><span class="macro-nonterminal">$ty</span>, buf: <span class="kw-2">&mut </span>B) <span class="kw">where </span>B: BufMut { |
| encode_key(tag, WireType::Varint, buf); |
| encode_varint(<span class="macro-nonterminal">$to_uint64</span>, buf); |
| } |
| |
| <span class="kw">pub fn </span>merge<B>(wire_type: WireType, value: <span class="kw-2">&mut </span><span class="macro-nonterminal">$ty</span>, buf: <span class="kw-2">&mut </span>B, _ctx: DecodeContext) -> <span class="prelude-ty">Result</span><(), DecodeError> <span class="kw">where </span>B: Buf { |
| check_wire_type(WireType::Varint, wire_type)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="macro-nonterminal">$from_uint64_value </span>= decode_varint(buf)<span class="question-mark">?</span>; |
| <span class="kw-2">*</span>value = <span class="macro-nonterminal">$from_uint64</span>; |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="macro">encode_repeated!</span>(<span class="macro-nonterminal">$ty</span>); |
| |
| <span class="kw">pub fn </span>encode_packed<B>(tag: u32, values: <span class="kw-2">&</span>[<span class="macro-nonterminal">$ty</span>], buf: <span class="kw-2">&mut </span>B) <span class="kw">where </span>B: BufMut { |
| <span class="kw">if </span>values.is_empty() { <span class="kw">return</span>; } |
| |
| encode_key(tag, WireType::LengthDelimited, buf); |
| <span class="kw">let </span>len: usize = values.iter().map(|<span class="macro-nonterminal">$to_uint64_value</span>| { |
| encoded_len_varint(<span class="macro-nonterminal">$to_uint64</span>) |
| }).sum(); |
| encode_varint(len <span class="kw">as </span>u64, buf); |
| |
| <span class="kw">for </span><span class="macro-nonterminal">$to_uint64_value </span><span class="kw">in </span>values { |
| encode_varint(<span class="macro-nonterminal">$to_uint64</span>, buf); |
| } |
| } |
| |
| <span class="macro">merge_repeated_numeric!</span>(<span class="macro-nonterminal">$ty</span>, WireType::Varint, merge, merge_repeated); |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len(tag: u32, <span class="macro-nonterminal">$to_uint64_value</span>: <span class="kw-2">&</span><span class="macro-nonterminal">$ty</span>) -> usize { |
| key_len(tag) + encoded_len_varint(<span class="macro-nonterminal">$to_uint64</span>) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len_repeated(tag: u32, values: <span class="kw-2">&</span>[<span class="macro-nonterminal">$ty</span>]) -> usize { |
| key_len(tag) * values.len() + values.iter().map(|<span class="macro-nonterminal">$to_uint64_value</span>| { |
| encoded_len_varint(<span class="macro-nonterminal">$to_uint64</span>) |
| }).sum::<usize>() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len_packed(tag: u32, values: <span class="kw-2">&</span>[<span class="macro-nonterminal">$ty</span>]) -> usize { |
| <span class="kw">if </span>values.is_empty() { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| <span class="kw">let </span>len = values.iter() |
| .map(|<span class="macro-nonterminal">$to_uint64_value</span>| encoded_len_varint(<span class="macro-nonterminal">$to_uint64</span>)) |
| .sum::<usize>(); |
| key_len(tag) + encoded_len_varint(len <span class="kw">as </span>u64) + len |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">use </span>proptest::prelude::<span class="kw-2">*</span>; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::encoding::<span class="macro-nonterminal">$proto_ty</span>::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">crate</span>::encoding::test::{ |
| check_collection_type, |
| check_type, |
| }; |
| |
| <span class="macro">proptest! </span>{ |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check(value: <span class="macro-nonterminal">$ty</span>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| check_type(value, tag, WireType::Varint, |
| encode, merge, encoded_len)<span class="question-mark">?</span>; |
| } |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_repeated(value: Vec<<span class="macro-nonterminal">$ty</span>>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| check_collection_type(value, tag, WireType::Varint, |
| encode_repeated, merge_repeated, |
| encoded_len_repeated)<span class="question-mark">?</span>; |
| } |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_packed(value: Vec<<span class="macro-nonterminal">$ty</span>>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| check_type(value, tag, WireType::LengthDelimited, |
| encode_packed, merge_repeated, |
| encoded_len_packed)<span class="question-mark">?</span>; |
| } |
| } |
| } |
| } |
| |
| ); |
| } |
| <span class="macro">varint!</span>(bool, bool, |
| to_uint64(value) <span class="kw">if </span><span class="kw-2">*</span>value { <span class="number">1u64 </span>} <span class="kw">else </span>{ <span class="number">0u64 </span>}, |
| from_uint64(value) value != <span class="number">0</span>); |
| <span class="macro">varint!</span>(i32, int32); |
| <span class="macro">varint!</span>(i64, int64); |
| <span class="macro">varint!</span>(u32, uint32); |
| <span class="macro">varint!</span>(u64, uint64); |
| <span class="macro">varint!</span>(i32, sint32, |
| to_uint64(value) { |
| ((value << <span class="number">1</span>) ^ (value >> <span class="number">31</span>)) <span class="kw">as </span>u32 <span class="kw">as </span>u64 |
| }, |
| from_uint64(value) { |
| <span class="kw">let </span>value = value <span class="kw">as </span>u32; |
| ((value >> <span class="number">1</span>) <span class="kw">as </span>i32) ^ (-((value & <span class="number">1</span>) <span class="kw">as </span>i32)) |
| }); |
| <span class="macro">varint!</span>(i64, sint64, |
| to_uint64(value) { |
| ((value << <span class="number">1</span>) ^ (value >> <span class="number">63</span>)) <span class="kw">as </span>u64 |
| }, |
| from_uint64(value) { |
| ((value >> <span class="number">1</span>) <span class="kw">as </span>i64) ^ (-((value & <span class="number">1</span>) <span class="kw">as </span>i64)) |
| }); |
| |
| <span class="doccomment">/// Macro which emits a module containing a set of encoding functions for a |
| /// fixed width numeric type. |
| </span><span class="macro">macro_rules! </span>fixed_width { |
| (<span class="macro-nonterminal">$ty</span>:ty, |
| <span class="macro-nonterminal">$width</span>:expr, |
| <span class="macro-nonterminal">$wire_type</span>:expr, |
| <span class="macro-nonterminal">$proto_ty</span>:ident, |
| <span class="macro-nonterminal">$put</span>:ident, |
| <span class="macro-nonterminal">$get</span>:ident) => { |
| <span class="kw">pub mod </span><span class="macro-nonterminal">$proto_ty </span>{ |
| <span class="kw">use </span><span class="kw">crate</span>::encoding::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub fn </span>encode<B>(tag: u32, value: <span class="kw-2">&</span><span class="macro-nonterminal">$ty</span>, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut, |
| { |
| encode_key(tag, <span class="macro-nonterminal">$wire_type</span>, buf); |
| buf.<span class="macro-nonterminal">$put</span>(<span class="kw-2">*</span>value); |
| } |
| |
| <span class="kw">pub fn </span>merge<B>( |
| wire_type: WireType, |
| value: <span class="kw-2">&mut </span><span class="macro-nonterminal">$ty</span>, |
| buf: <span class="kw-2">&mut </span>B, |
| _ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| check_wire_type(<span class="macro-nonterminal">$wire_type</span>, wire_type)<span class="question-mark">?</span>; |
| <span class="kw">if </span>buf.remaining() < <span class="macro-nonterminal">$width </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"buffer underflow"</span>)); |
| } |
| <span class="kw-2">*</span>value = buf.<span class="macro-nonterminal">$get</span>(); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="macro">encode_repeated!</span>(<span class="macro-nonterminal">$ty</span>); |
| |
| <span class="kw">pub fn </span>encode_packed<B>(tag: u32, values: <span class="kw-2">&</span>[<span class="macro-nonterminal">$ty</span>], buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut, |
| { |
| <span class="kw">if </span>values.is_empty() { |
| <span class="kw">return</span>; |
| } |
| |
| encode_key(tag, WireType::LengthDelimited, buf); |
| <span class="kw">let </span>len = values.len() <span class="kw">as </span>u64 * <span class="macro-nonterminal">$width</span>; |
| encode_varint(len <span class="kw">as </span>u64, buf); |
| |
| <span class="kw">for </span>value <span class="kw">in </span>values { |
| buf.<span class="macro-nonterminal">$put</span>(<span class="kw-2">*</span>value); |
| } |
| } |
| |
| <span class="macro">merge_repeated_numeric!</span>(<span class="macro-nonterminal">$ty</span>, <span class="macro-nonterminal">$wire_type</span>, merge, merge_repeated); |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len(tag: u32, <span class="kw">_</span>: <span class="kw-2">&</span><span class="macro-nonterminal">$ty</span>) -> usize { |
| key_len(tag) + <span class="macro-nonterminal">$width |
| </span>} |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len_repeated(tag: u32, values: <span class="kw-2">&</span>[<span class="macro-nonterminal">$ty</span>]) -> usize { |
| (key_len(tag) + <span class="macro-nonterminal">$width</span>) * values.len() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len_packed(tag: u32, values: <span class="kw-2">&</span>[<span class="macro-nonterminal">$ty</span>]) -> usize { |
| <span class="kw">if </span>values.is_empty() { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| <span class="kw">let </span>len = <span class="macro-nonterminal">$width </span>* values.len(); |
| key_len(tag) + encoded_len_varint(len <span class="kw">as </span>u64) + len |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">use </span>proptest::prelude::<span class="kw-2">*</span>; |
| |
| <span class="kw">use </span><span class="kw">super</span>::<span class="kw">super</span>::test::{check_collection_type, check_type}; |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="macro">proptest! </span>{ |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check(value: <span class="macro-nonterminal">$ty</span>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| check_type(value, tag, <span class="macro-nonterminal">$wire_type</span>, |
| encode, merge, encoded_len)<span class="question-mark">?</span>; |
| } |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_repeated(value: Vec<<span class="macro-nonterminal">$ty</span>>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| check_collection_type(value, tag, <span class="macro-nonterminal">$wire_type</span>, |
| encode_repeated, merge_repeated, |
| encoded_len_repeated)<span class="question-mark">?</span>; |
| } |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_packed(value: Vec<<span class="macro-nonterminal">$ty</span>>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| check_type(value, tag, WireType::LengthDelimited, |
| encode_packed, merge_repeated, |
| encoded_len_packed)<span class="question-mark">?</span>; |
| } |
| } |
| } |
| } |
| }; |
| } |
| <span class="macro">fixed_width!</span>( |
| f32, |
| <span class="number">4</span>, |
| WireType::ThirtyTwoBit, |
| float, |
| put_f32_le, |
| get_f32_le |
| ); |
| <span class="macro">fixed_width!</span>( |
| f64, |
| <span class="number">8</span>, |
| WireType::SixtyFourBit, |
| double, |
| put_f64_le, |
| get_f64_le |
| ); |
| <span class="macro">fixed_width!</span>( |
| u32, |
| <span class="number">4</span>, |
| WireType::ThirtyTwoBit, |
| fixed32, |
| put_u32_le, |
| get_u32_le |
| ); |
| <span class="macro">fixed_width!</span>( |
| u64, |
| <span class="number">8</span>, |
| WireType::SixtyFourBit, |
| fixed64, |
| put_u64_le, |
| get_u64_le |
| ); |
| <span class="macro">fixed_width!</span>( |
| i32, |
| <span class="number">4</span>, |
| WireType::ThirtyTwoBit, |
| sfixed32, |
| put_i32_le, |
| get_i32_le |
| ); |
| <span class="macro">fixed_width!</span>( |
| i64, |
| <span class="number">8</span>, |
| WireType::SixtyFourBit, |
| sfixed64, |
| put_i64_le, |
| get_i64_le |
| ); |
| |
| <span class="doccomment">/// Macro which emits encoding functions for a length-delimited type. |
| </span><span class="macro">macro_rules! </span>length_delimited { |
| (<span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="macro">encode_repeated!</span>(<span class="macro-nonterminal">$ty</span>); |
| |
| <span class="kw">pub fn </span>merge_repeated<B>( |
| wire_type: WireType, |
| values: <span class="kw-2">&mut </span>Vec<<span class="macro-nonterminal">$ty</span>>, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| check_wire_type(WireType::LengthDelimited, wire_type)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>value = Default::default(); |
| merge(wire_type, <span class="kw-2">&mut </span>value, buf, ctx)<span class="question-mark">?</span>; |
| values.push(value); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len(tag: u32, value: <span class="kw-2">&</span><span class="macro-nonterminal">$ty</span>) -> usize { |
| key_len(tag) + encoded_len_varint(value.len() <span class="kw">as </span>u64) + value.len() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len_repeated(tag: u32, values: <span class="kw-2">&</span>[<span class="macro-nonterminal">$ty</span>]) -> usize { |
| key_len(tag) * values.len() |
| + values |
| .iter() |
| .map(|value| encoded_len_varint(value.len() <span class="kw">as </span>u64) + value.len()) |
| .sum::<usize>() |
| } |
| }; |
| } |
| |
| <span class="kw">pub mod </span>string { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub fn </span>encode<B>(tag: u32, value: <span class="kw-2">&</span>String, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut, |
| { |
| encode_key(tag, WireType::LengthDelimited, buf); |
| encode_varint(value.len() <span class="kw">as </span>u64, buf); |
| buf.put_slice(value.as_bytes()); |
| } |
| <span class="kw">pub fn </span>merge<B>( |
| wire_type: WireType, |
| value: <span class="kw-2">&mut </span>String, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="comment">// ## Unsafety |
| // |
| // `string::merge` reuses `bytes::merge`, with an additional check of utf-8 |
| // well-formedness. If the utf-8 is not well-formed, or if any other error occurs, then the |
| // string is cleared, so as to avoid leaking a string field with invalid data. |
| // |
| // This implementation uses the unsafe `String::as_mut_vec` method instead of the safe |
| // alternative of temporarily swapping an empty `String` into the field, because it results |
| // in up to 10% better performance on the protobuf message decoding benchmarks. |
| // |
| // It's required when using `String::as_mut_vec` that invalid utf-8 data not be leaked into |
| // the backing `String`. To enforce this, even in the event of a panic in `bytes::merge` or |
| // in the buf implementation, a drop guard is used. |
| </span><span class="kw">unsafe </span>{ |
| <span class="kw">struct </span>DropGuard<<span class="lifetime">'a</span>>(<span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>Vec<u8>); |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> Drop <span class="kw">for </span>DropGuard<<span class="lifetime">'a</span>> { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>drop(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="self">self</span>.<span class="number">0</span>.clear(); |
| } |
| } |
| |
| <span class="kw">let </span>drop_guard = DropGuard(value.as_mut_vec()); |
| bytes::merge(wire_type, drop_guard.<span class="number">0</span>, buf, ctx)<span class="question-mark">?</span>; |
| <span class="kw">match </span>str::from_utf8(drop_guard.<span class="number">0</span>) { |
| <span class="prelude-val">Ok</span>(<span class="kw">_</span>) => { |
| <span class="comment">// Success; do not clear the bytes. |
| </span>mem::forget(drop_guard); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="prelude-val">Err</span>(DecodeError::new( |
| <span class="string">"invalid string value: data is not UTF-8 encoded"</span>, |
| )), |
| } |
| } |
| } |
| |
| <span class="macro">length_delimited!</span>(String); |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">use </span>proptest::prelude::<span class="kw-2">*</span>; |
| |
| <span class="kw">use </span><span class="kw">super</span>::<span class="kw">super</span>::test::{check_collection_type, check_type}; |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="macro">proptest! </span>{ |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check(value: String, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| <span class="kw">super</span>::test::check_type(value, tag, WireType::LengthDelimited, |
| encode, merge, encoded_len)<span class="question-mark">?</span>; |
| } |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_repeated(value: Vec<String>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| <span class="kw">super</span>::test::check_collection_type(value, tag, WireType::LengthDelimited, |
| encode_repeated, merge_repeated, |
| encoded_len_repeated)<span class="question-mark">?</span>; |
| } |
| } |
| } |
| } |
| |
| <span class="kw">pub trait </span>BytesAdapter: sealed::BytesAdapter {} |
| |
| <span class="kw">mod </span>sealed { |
| <span class="kw">use super</span>::{Buf, BufMut}; |
| |
| <span class="kw">pub trait </span>BytesAdapter: Default + Sized + <span class="lifetime">'static </span>{ |
| <span class="kw">fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize; |
| |
| <span class="doccomment">/// Replace contents of this buffer with the contents of another buffer. |
| </span><span class="kw">fn </span>replace_with<B>(<span class="kw-2">&mut </span><span class="self">self</span>, buf: B) |
| <span class="kw">where |
| </span>B: Buf; |
| |
| <span class="doccomment">/// Appends this buffer to the (contents of) other buffer. |
| </span><span class="kw">fn </span>append_to<B>(<span class="kw-2">&</span><span class="self">self</span>, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut; |
| |
| <span class="kw">fn </span>is_empty(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.len() == <span class="number">0 |
| </span>} |
| } |
| } |
| |
| <span class="kw">impl </span>BytesAdapter <span class="kw">for </span>Bytes {} |
| |
| <span class="kw">impl </span>sealed::BytesAdapter <span class="kw">for </span>Bytes { |
| <span class="kw">fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| Buf::remaining(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn </span>replace_with<B>(<span class="kw-2">&mut </span><span class="self">self</span>, <span class="kw-2">mut </span>buf: B) |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="kw-2">*</span><span class="self">self </span>= buf.copy_to_bytes(buf.remaining()); |
| } |
| |
| <span class="kw">fn </span>append_to<B>(<span class="kw-2">&</span><span class="self">self</span>, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut, |
| { |
| buf.put(<span class="self">self</span>.clone()) |
| } |
| } |
| |
| <span class="kw">impl </span>BytesAdapter <span class="kw">for </span>Vec<u8> {} |
| |
| <span class="kw">impl </span>sealed::BytesAdapter <span class="kw">for </span>Vec<u8> { |
| <span class="kw">fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| Vec::len(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn </span>replace_with<B>(<span class="kw-2">&mut </span><span class="self">self</span>, buf: B) |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="self">self</span>.clear(); |
| <span class="self">self</span>.reserve(buf.remaining()); |
| <span class="self">self</span>.put(buf); |
| } |
| |
| <span class="kw">fn </span>append_to<B>(<span class="kw-2">&</span><span class="self">self</span>, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>B: BufMut, |
| { |
| buf.put(<span class="self">self</span>.as_slice()) |
| } |
| } |
| |
| <span class="kw">pub mod </span>bytes { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub fn </span>encode<A, B>(tag: u32, value: <span class="kw-2">&</span>A, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>A: BytesAdapter, |
| B: BufMut, |
| { |
| encode_key(tag, WireType::LengthDelimited, buf); |
| encode_varint(value.len() <span class="kw">as </span>u64, buf); |
| value.append_to(buf); |
| } |
| |
| <span class="kw">pub fn </span>merge<A, B>( |
| wire_type: WireType, |
| value: <span class="kw-2">&mut </span>A, |
| buf: <span class="kw-2">&mut </span>B, |
| _ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>A: BytesAdapter, |
| B: Buf, |
| { |
| check_wire_type(WireType::LengthDelimited, wire_type)<span class="question-mark">?</span>; |
| <span class="kw">let </span>len = decode_varint(buf)<span class="question-mark">?</span>; |
| <span class="kw">if </span>len > buf.remaining() <span class="kw">as </span>u64 { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"buffer underflow"</span>)); |
| } |
| <span class="kw">let </span>len = len <span class="kw">as </span>usize; |
| |
| <span class="comment">// Clear the existing value. This follows from the following rule in the encoding guide[1]: |
| // |
| // > Normally, an encoded message would never have more than one instance of a non-repeated |
| // > field. However, parsers are expected to handle the case in which they do. For numeric |
| // > types and strings, if the same field appears multiple times, the parser accepts the |
| // > last value it sees. |
| // |
| // [1]: https://developers.google.com/protocol-buffers/docs/encoding#optional |
| </span>value.replace_with(buf.copy_to_bytes(len)); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="macro">length_delimited!</span>(<span class="kw">impl </span>BytesAdapter); |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">use </span>proptest::prelude::<span class="kw-2">*</span>; |
| |
| <span class="kw">use </span><span class="kw">super</span>::<span class="kw">super</span>::test::{check_collection_type, check_type}; |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="macro">proptest! </span>{ |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_vec(value: Vec<u8>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| <span class="kw">super</span>::test::check_type::<Vec<u8>, Vec<u8>>(value, tag, WireType::LengthDelimited, |
| encode, merge, encoded_len)<span class="question-mark">?</span>; |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_bytes(value: Vec<u8>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| <span class="kw">let </span>value = Bytes::from(value); |
| <span class="kw">super</span>::test::check_type::<Bytes, Bytes>(value, tag, WireType::LengthDelimited, |
| encode, merge, encoded_len)<span class="question-mark">?</span>; |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_repeated_vec(value: Vec<Vec<u8>>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| <span class="kw">super</span>::test::check_collection_type(value, tag, WireType::LengthDelimited, |
| encode_repeated, merge_repeated, |
| encoded_len_repeated)<span class="question-mark">?</span>; |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>check_repeated_bytes(value: Vec<Vec<u8>>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| <span class="kw">let </span>value = value.into_iter().map(Bytes::from).collect(); |
| <span class="kw">super</span>::test::check_collection_type(value, tag, WireType::LengthDelimited, |
| encode_repeated, merge_repeated, |
| encoded_len_repeated)<span class="question-mark">?</span>; |
| } |
| } |
| } |
| } |
| |
| <span class="kw">pub mod </span>message { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub fn </span>encode<M, B>(tag: u32, msg: <span class="kw-2">&</span>M, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>M: Message, |
| B: BufMut, |
| { |
| encode_key(tag, WireType::LengthDelimited, buf); |
| encode_varint(msg.encoded_len() <span class="kw">as </span>u64, buf); |
| msg.encode_raw(buf); |
| } |
| |
| <span class="kw">pub fn </span>merge<M, B>( |
| wire_type: WireType, |
| msg: <span class="kw-2">&mut </span>M, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>M: Message, |
| B: Buf, |
| { |
| check_wire_type(WireType::LengthDelimited, wire_type)<span class="question-mark">?</span>; |
| ctx.limit_reached()<span class="question-mark">?</span>; |
| merge_loop( |
| msg, |
| buf, |
| ctx.enter_recursion(), |
| |msg: <span class="kw-2">&mut </span>M, buf: <span class="kw-2">&mut </span>B, ctx| { |
| <span class="kw">let </span>(tag, wire_type) = decode_key(buf)<span class="question-mark">?</span>; |
| msg.merge_field(tag, wire_type, buf, ctx) |
| }, |
| ) |
| } |
| |
| <span class="kw">pub fn </span>encode_repeated<M, B>(tag: u32, messages: <span class="kw-2">&</span>[M], buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>M: Message, |
| B: BufMut, |
| { |
| <span class="kw">for </span>msg <span class="kw">in </span>messages { |
| encode(tag, msg, buf); |
| } |
| } |
| |
| <span class="kw">pub fn </span>merge_repeated<M, B>( |
| wire_type: WireType, |
| messages: <span class="kw-2">&mut </span>Vec<M>, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>M: Message + Default, |
| B: Buf, |
| { |
| check_wire_type(WireType::LengthDelimited, wire_type)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>msg = M::default(); |
| merge(WireType::LengthDelimited, <span class="kw-2">&mut </span>msg, buf, ctx)<span class="question-mark">?</span>; |
| messages.push(msg); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len<M>(tag: u32, msg: <span class="kw-2">&</span>M) -> usize |
| <span class="kw">where |
| </span>M: Message, |
| { |
| <span class="kw">let </span>len = msg.encoded_len(); |
| key_len(tag) + encoded_len_varint(len <span class="kw">as </span>u64) + len |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len_repeated<M>(tag: u32, messages: <span class="kw-2">&</span>[M]) -> usize |
| <span class="kw">where |
| </span>M: Message, |
| { |
| key_len(tag) * messages.len() |
| + messages |
| .iter() |
| .map(Message::encoded_len) |
| .map(|len| len + encoded_len_varint(len <span class="kw">as </span>u64)) |
| .sum::<usize>() |
| } |
| } |
| |
| <span class="kw">pub mod </span>group { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub fn </span>encode<M, B>(tag: u32, msg: <span class="kw-2">&</span>M, buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>M: Message, |
| B: BufMut, |
| { |
| encode_key(tag, WireType::StartGroup, buf); |
| msg.encode_raw(buf); |
| encode_key(tag, WireType::EndGroup, buf); |
| } |
| |
| <span class="kw">pub fn </span>merge<M, B>( |
| tag: u32, |
| wire_type: WireType, |
| msg: <span class="kw-2">&mut </span>M, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>M: Message, |
| B: Buf, |
| { |
| check_wire_type(WireType::StartGroup, wire_type)<span class="question-mark">?</span>; |
| |
| ctx.limit_reached()<span class="question-mark">?</span>; |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span>(field_tag, field_wire_type) = decode_key(buf)<span class="question-mark">?</span>; |
| <span class="kw">if </span>field_wire_type == WireType::EndGroup { |
| <span class="kw">if </span>field_tag != tag { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(DecodeError::new(<span class="string">"unexpected end group tag"</span>)); |
| } |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| |
| M::merge_field(msg, field_tag, field_wire_type, buf, ctx.enter_recursion())<span class="question-mark">?</span>; |
| } |
| } |
| |
| <span class="kw">pub fn </span>encode_repeated<M, B>(tag: u32, messages: <span class="kw-2">&</span>[M], buf: <span class="kw-2">&mut </span>B) |
| <span class="kw">where |
| </span>M: Message, |
| B: BufMut, |
| { |
| <span class="kw">for </span>msg <span class="kw">in </span>messages { |
| encode(tag, msg, buf); |
| } |
| } |
| |
| <span class="kw">pub fn </span>merge_repeated<M, B>( |
| tag: u32, |
| wire_type: WireType, |
| messages: <span class="kw-2">&mut </span>Vec<M>, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>M: Message + Default, |
| B: Buf, |
| { |
| check_wire_type(WireType::StartGroup, wire_type)<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>msg = M::default(); |
| merge(tag, WireType::StartGroup, <span class="kw-2">&mut </span>msg, buf, ctx)<span class="question-mark">?</span>; |
| messages.push(msg); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len<M>(tag: u32, msg: <span class="kw-2">&</span>M) -> usize |
| <span class="kw">where |
| </span>M: Message, |
| { |
| <span class="number">2 </span>* key_len(tag) + msg.encoded_len() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>encoded_len_repeated<M>(tag: u32, messages: <span class="kw-2">&</span>[M]) -> usize |
| <span class="kw">where |
| </span>M: Message, |
| { |
| <span class="number">2 </span>* key_len(tag) * messages.len() + messages.iter().map(Message::encoded_len).sum::<usize>() |
| } |
| } |
| |
| <span class="doccomment">/// Rust doesn't have a `Map` trait, so macros are currently the best way to be |
| /// generic over `HashMap` and `BTreeMap`. |
| </span><span class="macro">macro_rules! </span>map { |
| (<span class="macro-nonterminal">$map_ty</span>:ident) => { |
| <span class="kw">use </span><span class="kw">crate</span>::encoding::<span class="kw-2">*</span>; |
| <span class="kw">use </span>core::hash::Hash; |
| |
| <span class="doccomment">/// Generic protobuf map encode function. |
| </span><span class="kw">pub fn </span>encode<K, V, B, KE, KL, VE, VL>( |
| key_encode: KE, |
| key_encoded_len: KL, |
| val_encode: VE, |
| val_encoded_len: VL, |
| tag: u32, |
| values: <span class="kw-2">&</span><span class="macro-nonterminal">$map_ty</span><K, V>, |
| buf: <span class="kw-2">&mut </span>B, |
| ) <span class="kw">where |
| </span>K: Default + Eq + Hash + Ord, |
| V: Default + PartialEq, |
| B: BufMut, |
| KE: Fn(u32, <span class="kw-2">&</span>K, <span class="kw-2">&mut </span>B), |
| KL: Fn(u32, <span class="kw-2">&</span>K) -> usize, |
| VE: Fn(u32, <span class="kw-2">&</span>V, <span class="kw-2">&mut </span>B), |
| VL: Fn(u32, <span class="kw-2">&</span>V) -> usize, |
| { |
| encode_with_default( |
| key_encode, |
| key_encoded_len, |
| val_encode, |
| val_encoded_len, |
| <span class="kw-2">&</span>V::default(), |
| tag, |
| values, |
| buf, |
| ) |
| } |
| |
| <span class="doccomment">/// Generic protobuf map merge function. |
| </span><span class="kw">pub fn </span>merge<K, V, B, KM, VM>( |
| key_merge: KM, |
| val_merge: VM, |
| values: <span class="kw-2">&mut </span><span class="macro-nonterminal">$map_ty</span><K, V>, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>K: Default + Eq + Hash + Ord, |
| V: Default, |
| B: Buf, |
| KM: Fn(WireType, <span class="kw-2">&mut </span>K, <span class="kw-2">&mut </span>B, DecodeContext) -> <span class="prelude-ty">Result</span><(), DecodeError>, |
| VM: Fn(WireType, <span class="kw-2">&mut </span>V, <span class="kw-2">&mut </span>B, DecodeContext) -> <span class="prelude-ty">Result</span><(), DecodeError>, |
| { |
| merge_with_default(key_merge, val_merge, V::default(), values, buf, ctx) |
| } |
| |
| <span class="doccomment">/// Generic protobuf map encode function. |
| </span><span class="kw">pub fn </span>encoded_len<K, V, KL, VL>( |
| key_encoded_len: KL, |
| val_encoded_len: VL, |
| tag: u32, |
| values: <span class="kw-2">&</span><span class="macro-nonterminal">$map_ty</span><K, V>, |
| ) -> usize |
| <span class="kw">where |
| </span>K: Default + Eq + Hash + Ord, |
| V: Default + PartialEq, |
| KL: Fn(u32, <span class="kw-2">&</span>K) -> usize, |
| VL: Fn(u32, <span class="kw-2">&</span>V) -> usize, |
| { |
| encoded_len_with_default(key_encoded_len, val_encoded_len, <span class="kw-2">&</span>V::default(), tag, values) |
| } |
| |
| <span class="doccomment">/// Generic protobuf map encode function with an overriden value default. |
| /// |
| /// This is necessary because enumeration values can have a default value other |
| /// than 0 in proto2. |
| </span><span class="kw">pub fn </span>encode_with_default<K, V, B, KE, KL, VE, VL>( |
| key_encode: KE, |
| key_encoded_len: KL, |
| val_encode: VE, |
| val_encoded_len: VL, |
| val_default: <span class="kw-2">&</span>V, |
| tag: u32, |
| values: <span class="kw-2">&</span><span class="macro-nonterminal">$map_ty</span><K, V>, |
| buf: <span class="kw-2">&mut </span>B, |
| ) <span class="kw">where |
| </span>K: Default + Eq + Hash + Ord, |
| V: PartialEq, |
| B: BufMut, |
| KE: Fn(u32, <span class="kw-2">&</span>K, <span class="kw-2">&mut </span>B), |
| KL: Fn(u32, <span class="kw-2">&</span>K) -> usize, |
| VE: Fn(u32, <span class="kw-2">&</span>V, <span class="kw-2">&mut </span>B), |
| VL: Fn(u32, <span class="kw-2">&</span>V) -> usize, |
| { |
| <span class="kw">for </span>(key, val) <span class="kw">in </span>values.iter() { |
| <span class="kw">let </span>skip_key = key == <span class="kw-2">&</span>K::default(); |
| <span class="kw">let </span>skip_val = val == val_default; |
| |
| <span class="kw">let </span>len = (<span class="kw">if </span>skip_key { <span class="number">0 </span>} <span class="kw">else </span>{ key_encoded_len(<span class="number">1</span>, key) }) |
| + (<span class="kw">if </span>skip_val { <span class="number">0 </span>} <span class="kw">else </span>{ val_encoded_len(<span class="number">2</span>, val) }); |
| |
| encode_key(tag, WireType::LengthDelimited, buf); |
| encode_varint(len <span class="kw">as </span>u64, buf); |
| <span class="kw">if </span>!skip_key { |
| key_encode(<span class="number">1</span>, key, buf); |
| } |
| <span class="kw">if </span>!skip_val { |
| val_encode(<span class="number">2</span>, val, buf); |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Generic protobuf map merge function with an overriden value default. |
| /// |
| /// This is necessary because enumeration values can have a default value other |
| /// than 0 in proto2. |
| </span><span class="kw">pub fn </span>merge_with_default<K, V, B, KM, VM>( |
| key_merge: KM, |
| val_merge: VM, |
| val_default: V, |
| values: <span class="kw-2">&mut </span><span class="macro-nonterminal">$map_ty</span><K, V>, |
| buf: <span class="kw-2">&mut </span>B, |
| ctx: DecodeContext, |
| ) -> <span class="prelude-ty">Result</span><(), DecodeError> |
| <span class="kw">where |
| </span>K: Default + Eq + Hash + Ord, |
| B: Buf, |
| KM: Fn(WireType, <span class="kw-2">&mut </span>K, <span class="kw-2">&mut </span>B, DecodeContext) -> <span class="prelude-ty">Result</span><(), DecodeError>, |
| VM: Fn(WireType, <span class="kw-2">&mut </span>V, <span class="kw-2">&mut </span>B, DecodeContext) -> <span class="prelude-ty">Result</span><(), DecodeError>, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>key = Default::default(); |
| <span class="kw">let </span><span class="kw-2">mut </span>val = val_default; |
| ctx.limit_reached()<span class="question-mark">?</span>; |
| merge_loop( |
| <span class="kw-2">&mut </span>(<span class="kw-2">&mut </span>key, <span class="kw-2">&mut </span>val), |
| buf, |
| ctx.enter_recursion(), |
| |<span class="kw-2">&mut </span>(<span class="kw-2">ref mut </span>key, <span class="kw-2">ref mut </span>val), buf, ctx| { |
| <span class="kw">let </span>(tag, wire_type) = decode_key(buf)<span class="question-mark">?</span>; |
| <span class="kw">match </span>tag { |
| <span class="number">1 </span>=> key_merge(wire_type, key, buf, ctx), |
| <span class="number">2 </span>=> val_merge(wire_type, val, buf, ctx), |
| <span class="kw">_ </span>=> skip_field(wire_type, tag, buf, ctx), |
| } |
| }, |
| )<span class="question-mark">?</span>; |
| values.insert(key, val); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="doccomment">/// Generic protobuf map encode function with an overriden value default. |
| /// |
| /// This is necessary because enumeration values can have a default value other |
| /// than 0 in proto2. |
| </span><span class="kw">pub fn </span>encoded_len_with_default<K, V, KL, VL>( |
| key_encoded_len: KL, |
| val_encoded_len: VL, |
| val_default: <span class="kw-2">&</span>V, |
| tag: u32, |
| values: <span class="kw-2">&</span><span class="macro-nonterminal">$map_ty</span><K, V>, |
| ) -> usize |
| <span class="kw">where |
| </span>K: Default + Eq + Hash + Ord, |
| V: PartialEq, |
| KL: Fn(u32, <span class="kw-2">&</span>K) -> usize, |
| VL: Fn(u32, <span class="kw-2">&</span>V) -> usize, |
| { |
| key_len(tag) * values.len() |
| + values |
| .iter() |
| .map(|(key, val)| { |
| <span class="kw">let </span>len = (<span class="kw">if </span>key == <span class="kw-2">&</span>K::default() { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| key_encoded_len(<span class="number">1</span>, key) |
| }) + (<span class="kw">if </span>val == val_default { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| val_encoded_len(<span class="number">2</span>, val) |
| }); |
| encoded_len_varint(len <span class="kw">as </span>u64) + len |
| }) |
| .sum::<usize>() |
| } |
| }; |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">pub mod </span>hash_map { |
| <span class="kw">use </span>std::collections::HashMap; |
| <span class="macro">map!</span>(HashMap); |
| } |
| |
| <span class="kw">pub mod </span>btree_map { |
| <span class="macro">map!</span>(BTreeMap); |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">use </span>alloc::string::ToString; |
| <span class="kw">use </span>core::borrow::Borrow; |
| <span class="kw">use </span>core::fmt::Debug; |
| <span class="kw">use </span>core::u64; |
| |
| <span class="kw">use </span>::bytes::{Bytes, BytesMut}; |
| <span class="kw">use </span>proptest::{prelude::<span class="kw-2">*</span>, test_runner::TestCaseResult}; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::encoding::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub fn </span>check_type<T, B>( |
| value: T, |
| tag: u32, |
| wire_type: WireType, |
| encode: <span class="kw">fn</span>(u32, <span class="kw-2">&</span>B, <span class="kw-2">&mut </span>BytesMut), |
| merge: <span class="kw">fn</span>(WireType, <span class="kw-2">&mut </span>T, <span class="kw-2">&mut </span>Bytes, DecodeContext) -> <span class="prelude-ty">Result</span><(), DecodeError>, |
| encoded_len: <span class="kw">fn</span>(u32, <span class="kw-2">&</span>B) -> usize, |
| ) -> TestCaseResult |
| <span class="kw">where |
| </span>T: Debug + Default + PartialEq + Borrow<B>, |
| B: <span class="question-mark">?</span>Sized, |
| { |
| <span class="macro">prop_assume!</span>(MIN_TAG <= tag && tag <= MAX_TAG); |
| |
| <span class="kw">let </span>expected_len = encoded_len(tag, value.borrow()); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = BytesMut::with_capacity(expected_len); |
| encode(tag, value.borrow(), <span class="kw-2">&mut </span>buf); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = buf.freeze(); |
| |
| <span class="macro">prop_assert_eq!</span>( |
| buf.remaining(), |
| expected_len, |
| <span class="string">"encoded_len wrong; expected: {}, actual: {}"</span>, |
| expected_len, |
| buf.remaining() |
| ); |
| |
| <span class="kw">if </span>!buf.has_remaining() { |
| <span class="comment">// Short circuit for empty packed values. |
| </span><span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| |
| <span class="kw">let </span>(decoded_tag, decoded_wire_type) = |
| decode_key(<span class="kw-2">&mut </span>buf).map_err(|error| TestCaseError::fail(error.to_string()))<span class="question-mark">?</span>; |
| <span class="macro">prop_assert_eq!</span>( |
| tag, |
| decoded_tag, |
| <span class="string">"decoded tag does not match; expected: {}, actual: {}"</span>, |
| tag, |
| decoded_tag |
| ); |
| |
| <span class="macro">prop_assert_eq!</span>( |
| wire_type, |
| decoded_wire_type, |
| <span class="string">"decoded wire type does not match; expected: {:?}, actual: {:?}"</span>, |
| wire_type, |
| decoded_wire_type, |
| ); |
| |
| <span class="kw">match </span>wire_type { |
| WireType::SixtyFourBit <span class="kw">if </span>buf.remaining() != <span class="number">8 </span>=> <span class="prelude-val">Err</span>(TestCaseError::fail(<span class="macro">format!</span>( |
| <span class="string">"64bit wire type illegal remaining: {}, tag: {}"</span>, |
| buf.remaining(), |
| tag |
| ))), |
| WireType::ThirtyTwoBit <span class="kw">if </span>buf.remaining() != <span class="number">4 </span>=> <span class="prelude-val">Err</span>(TestCaseError::fail(<span class="macro">format!</span>( |
| <span class="string">"32bit wire type illegal remaining: {}, tag: {}"</span>, |
| buf.remaining(), |
| tag |
| ))), |
| <span class="kw">_ </span>=> <span class="prelude-val">Ok</span>(()), |
| }<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>roundtrip_value = T::default(); |
| merge( |
| wire_type, |
| <span class="kw-2">&mut </span>roundtrip_value, |
| <span class="kw-2">&mut </span>buf, |
| DecodeContext::default(), |
| ) |
| .map_err(|error| TestCaseError::fail(error.to_string()))<span class="question-mark">?</span>; |
| |
| <span class="macro">prop_assert!</span>( |
| !buf.has_remaining(), |
| <span class="string">"expected buffer to be empty, remaining: {}"</span>, |
| buf.remaining() |
| ); |
| |
| <span class="macro">prop_assert_eq!</span>(value, roundtrip_value); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>check_collection_type<T, B, E, M, L>( |
| value: T, |
| tag: u32, |
| wire_type: WireType, |
| encode: E, |
| <span class="kw-2">mut </span>merge: M, |
| encoded_len: L, |
| ) -> TestCaseResult |
| <span class="kw">where |
| </span>T: Debug + Default + PartialEq + Borrow<B>, |
| B: <span class="question-mark">?</span>Sized, |
| E: FnOnce(u32, <span class="kw-2">&</span>B, <span class="kw-2">&mut </span>BytesMut), |
| M: FnMut(WireType, <span class="kw-2">&mut </span>T, <span class="kw-2">&mut </span>Bytes, DecodeContext) -> <span class="prelude-ty">Result</span><(), DecodeError>, |
| L: FnOnce(u32, <span class="kw-2">&</span>B) -> usize, |
| { |
| <span class="macro">prop_assume!</span>(MIN_TAG <= tag && tag <= MAX_TAG); |
| |
| <span class="kw">let </span>expected_len = encoded_len(tag, value.borrow()); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = BytesMut::with_capacity(expected_len); |
| encode(tag, value.borrow(), <span class="kw-2">&mut </span>buf); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = buf.freeze(); |
| |
| <span class="macro">prop_assert_eq!</span>( |
| buf.remaining(), |
| expected_len, |
| <span class="string">"encoded_len wrong; expected: {}, actual: {}"</span>, |
| expected_len, |
| buf.remaining() |
| ); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>roundtrip_value = Default::default(); |
| <span class="kw">while </span>buf.has_remaining() { |
| <span class="kw">let </span>(decoded_tag, decoded_wire_type) = |
| decode_key(<span class="kw-2">&mut </span>buf).map_err(|error| TestCaseError::fail(error.to_string()))<span class="question-mark">?</span>; |
| |
| <span class="macro">prop_assert_eq!</span>( |
| tag, |
| decoded_tag, |
| <span class="string">"decoded tag does not match; expected: {}, actual: {}"</span>, |
| tag, |
| decoded_tag |
| ); |
| |
| <span class="macro">prop_assert_eq!</span>( |
| wire_type, |
| decoded_wire_type, |
| <span class="string">"decoded wire type does not match; expected: {:?}, actual: {:?}"</span>, |
| wire_type, |
| decoded_wire_type |
| ); |
| |
| merge( |
| wire_type, |
| <span class="kw-2">&mut </span>roundtrip_value, |
| <span class="kw-2">&mut </span>buf, |
| DecodeContext::default(), |
| ) |
| .map_err(|error| TestCaseError::fail(error.to_string()))<span class="question-mark">?</span>; |
| } |
| |
| <span class="macro">prop_assert_eq!</span>(value, roundtrip_value); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>string_merge_invalid_utf8() { |
| <span class="kw">let </span><span class="kw-2">mut </span>s = String::new(); |
| <span class="kw">let </span>buf = <span class="string">b"\x02\x80\x80"</span>; |
| |
| <span class="kw">let </span>r = string::merge( |
| WireType::LengthDelimited, |
| <span class="kw-2">&mut </span>s, |
| <span class="kw-2">&mut &</span>buf[..], |
| DecodeContext::default(), |
| ); |
| r.expect_err(<span class="string">"must be an error"</span>); |
| <span class="macro">assert!</span>(s.is_empty()); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>varint() { |
| <span class="kw">fn </span>check(value: u64, <span class="kw-2">mut </span>encoded: <span class="kw-2">&</span>[u8]) { |
| <span class="comment">// TODO(rust-lang/rust-clippy#5494) |
| </span><span class="attribute">#![allow(clippy::clone_double_ref)] |
| |
| </span><span class="comment">// Small buffer. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>buf = Vec::with_capacity(<span class="number">1</span>); |
| encode_varint(value, <span class="kw-2">&mut </span>buf); |
| <span class="macro">assert_eq!</span>(buf, encoded); |
| |
| <span class="comment">// Large buffer. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>buf = Vec::with_capacity(<span class="number">100</span>); |
| encode_varint(value, <span class="kw-2">&mut </span>buf); |
| <span class="macro">assert_eq!</span>(buf, encoded); |
| |
| <span class="macro">assert_eq!</span>(encoded_len_varint(value), encoded.len()); |
| |
| <span class="kw">let </span>roundtrip_value = decode_varint(<span class="kw-2">&mut </span>encoded.clone()).expect(<span class="string">"decoding failed"</span>); |
| <span class="macro">assert_eq!</span>(value, roundtrip_value); |
| |
| <span class="kw">let </span>roundtrip_value = decode_varint_slow(<span class="kw-2">&mut </span>encoded).expect(<span class="string">"slow decoding failed"</span>); |
| <span class="macro">assert_eq!</span>(value, roundtrip_value); |
| } |
| |
| check(<span class="number">2u64</span>.pow(<span class="number">0</span>) - <span class="number">1</span>, <span class="kw-2">&</span>[<span class="number">0x00</span>]); |
| check(<span class="number">2u64</span>.pow(<span class="number">0</span>), <span class="kw-2">&</span>[<span class="number">0x01</span>]); |
| |
| check(<span class="number">2u64</span>.pow(<span class="number">7</span>) - <span class="number">1</span>, <span class="kw-2">&</span>[<span class="number">0x7F</span>]); |
| check(<span class="number">2u64</span>.pow(<span class="number">7</span>), <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x01</span>]); |
| check(<span class="number">300</span>, <span class="kw-2">&</span>[<span class="number">0xAC</span>, <span class="number">0x02</span>]); |
| |
| check(<span class="number">2u64</span>.pow(<span class="number">14</span>) - <span class="number">1</span>, <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0x7F</span>]); |
| check(<span class="number">2u64</span>.pow(<span class="number">14</span>), <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x01</span>]); |
| |
| check(<span class="number">2u64</span>.pow(<span class="number">21</span>) - <span class="number">1</span>, <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x7F</span>]); |
| check(<span class="number">2u64</span>.pow(<span class="number">21</span>), <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x01</span>]); |
| |
| check(<span class="number">2u64</span>.pow(<span class="number">28</span>) - <span class="number">1</span>, <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x7F</span>]); |
| check(<span class="number">2u64</span>.pow(<span class="number">28</span>), <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x01</span>]); |
| |
| check(<span class="number">2u64</span>.pow(<span class="number">35</span>) - <span class="number">1</span>, <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x7F</span>]); |
| check(<span class="number">2u64</span>.pow(<span class="number">35</span>), <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x01</span>]); |
| |
| check(<span class="number">2u64</span>.pow(<span class="number">42</span>) - <span class="number">1</span>, <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x7F</span>]); |
| check(<span class="number">2u64</span>.pow(<span class="number">42</span>), <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x01</span>]); |
| |
| check( |
| <span class="number">2u64</span>.pow(<span class="number">49</span>) - <span class="number">1</span>, |
| <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x7F</span>], |
| ); |
| check( |
| <span class="number">2u64</span>.pow(<span class="number">49</span>), |
| <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x01</span>], |
| ); |
| |
| check( |
| <span class="number">2u64</span>.pow(<span class="number">56</span>) - <span class="number">1</span>, |
| <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x7F</span>], |
| ); |
| check( |
| <span class="number">2u64</span>.pow(<span class="number">56</span>), |
| <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x01</span>], |
| ); |
| |
| check( |
| <span class="number">2u64</span>.pow(<span class="number">63</span>) - <span class="number">1</span>, |
| <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x7F</span>], |
| ); |
| check( |
| <span class="number">2u64</span>.pow(<span class="number">63</span>), |
| <span class="kw-2">&</span>[<span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x80</span>, <span class="number">0x01</span>], |
| ); |
| |
| check( |
| u64::MAX, |
| <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x01</span>], |
| ); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>varint_overflow() { |
| <span class="kw">let </span><span class="kw-2">mut </span>u64_max_plus_one: <span class="kw-2">&</span>[u8] = |
| <span class="kw-2">&</span>[<span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0xFF</span>, <span class="number">0x02</span>]; |
| |
| decode_varint(<span class="kw-2">&mut </span>u64_max_plus_one).expect_err(<span class="string">"decoding u64::MAX + 1 succeeded"</span>); |
| decode_varint_slow(<span class="kw-2">&mut </span>u64_max_plus_one) |
| .expect_err(<span class="string">"slow decoding u64::MAX + 1 succeeded"</span>); |
| } |
| |
| <span class="doccomment">/// This big bowl o' macro soup generates an encoding property test for each combination of map |
| /// type, scalar map key, and value type. |
| /// TODO: these tests take a long time to compile, can this be improved? |
| </span><span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="macro">macro_rules! </span>map_tests { |
| (keys: <span class="macro-nonterminal">$keys</span>:tt, |
| vals: <span class="macro-nonterminal">$vals</span>:tt) => { |
| <span class="kw">mod </span>hash_map { |
| <span class="macro">map_tests!</span>(@private HashMap, hash_map, <span class="macro-nonterminal">$keys</span>, <span class="macro-nonterminal">$vals</span>); |
| } |
| <span class="kw">mod </span>btree_map { |
| <span class="macro">map_tests!</span>(@private BTreeMap, btree_map, <span class="macro-nonterminal">$keys</span>, <span class="macro-nonterminal">$vals</span>); |
| } |
| }; |
| |
| (@private <span class="macro-nonterminal">$map_type</span>:ident, |
| <span class="macro-nonterminal">$mod_name</span>:ident, |
| [$((<span class="macro-nonterminal">$key_ty</span>:ty, <span class="macro-nonterminal">$key_proto</span>:ident)),<span class="kw-2">*</span>], |
| <span class="macro-nonterminal">$vals</span>:tt) => { |
| $( |
| <span class="kw">mod </span><span class="macro-nonterminal">$key_proto </span>{ |
| <span class="kw">use </span>std::collections::<span class="macro-nonterminal">$map_type</span>; |
| |
| <span class="kw">use </span>proptest::prelude::<span class="kw-2">*</span>; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::encoding::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">crate</span>::encoding::test::check_collection_type; |
| |
| <span class="macro">map_tests!</span>(@private <span class="macro-nonterminal">$map_type</span>, <span class="macro-nonterminal">$mod_name</span>, (<span class="macro-nonterminal">$key_ty</span>, <span class="macro-nonterminal">$key_proto</span>), <span class="macro-nonterminal">$vals</span>); |
| } |
| )* |
| }; |
| |
| (@private <span class="macro-nonterminal">$map_type</span>:ident, |
| <span class="macro-nonterminal">$mod_name</span>:ident, |
| (<span class="macro-nonterminal">$key_ty</span>:ty, <span class="macro-nonterminal">$key_proto</span>:ident), |
| [$((<span class="macro-nonterminal">$val_ty</span>:ty, <span class="macro-nonterminal">$val_proto</span>:ident)),<span class="kw-2">*</span>]) => { |
| $( |
| <span class="macro">proptest! </span>{ |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span><span class="macro-nonterminal">$val_proto</span>(values: <span class="macro-nonterminal">$map_type</span><<span class="macro-nonterminal">$key_ty</span>, <span class="macro-nonterminal">$val_ty</span>>, tag <span class="kw">in </span>MIN_TAG..=MAX_TAG) { |
| check_collection_type(values, tag, WireType::LengthDelimited, |
| |tag, values, buf| { |
| <span class="macro-nonterminal">$mod_name::encode</span>(<span class="macro-nonterminal">$key_proto::encode</span>, |
| <span class="macro-nonterminal">$key_proto::encoded_len</span>, |
| <span class="macro-nonterminal">$val_proto::encode</span>, |
| <span class="macro-nonterminal">$val_proto::encoded_len</span>, |
| tag, |
| values, |
| buf) |
| }, |
| |wire_type, values, buf, ctx| { |
| check_wire_type(WireType::LengthDelimited, wire_type)<span class="question-mark">?</span>; |
| <span class="macro-nonterminal">$mod_name::merge</span>(<span class="macro-nonterminal">$key_proto::merge</span>, |
| <span class="macro-nonterminal">$val_proto::merge</span>, |
| values, |
| buf, |
| ctx) |
| }, |
| |tag, values| { |
| <span class="macro-nonterminal">$mod_name::encoded_len</span>(<span class="macro-nonterminal">$key_proto::encoded_len</span>, |
| <span class="macro-nonterminal">$val_proto::encoded_len</span>, |
| tag, |
| values) |
| })<span class="question-mark">?</span>; |
| } |
| } |
| )* |
| }; |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="macro">map_tests!</span>(keys: [ |
| (i32, int32), |
| (i64, int64), |
| (u32, uint32), |
| (u64, uint64), |
| (i32, sint32), |
| (i64, sint64), |
| (u32, fixed32), |
| (u64, fixed64), |
| (i32, sfixed32), |
| (i64, sfixed64), |
| (bool, bool), |
| (String, string) |
| ], |
| vals: [ |
| (f32, float), |
| (f64, double), |
| (i32, int32), |
| (i64, int64), |
| (u32, uint32), |
| (u64, uint64), |
| (i32, sint32), |
| (i64, sint64), |
| (u32, fixed32), |
| (u64, fixed64), |
| (i32, sfixed32), |
| (i64, sfixed64), |
| (bool, bool), |
| (String, string), |
| (Vec<u8>, bytes) |
| ]); |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="prost" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
