<!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 to the Rust file `/home/dimitris/.cargo/registry/src/github.com-1ecc6299db9ec823/serde-0.9.12/src/ser/mod.rs`.">
<meta name="keywords" content="rust, rustlang, rust-lang">
<title>mod.rs.html -- source</title>
<link rel="stylesheet" type="text/css" href="../../../normalize.css">
<link rel="stylesheet" type="text/css" href="../../../rustdoc.css">
<link rel="stylesheet" type="text/css" href="../../../main.css">
</head>
<body class="rustdoc">
<!--[if lte IE 8]>
<div class="warning">
This old browser is unsupported and will most likely display funky
things.
</div>
<![endif]-->
<nav class="sidebar">
</nav>
<nav class="sub">
<form class="search-form js-only">
<div class="search-container">
<input class="search-input" name="search"
autocomplete="off"
placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
type="search">
</div>
</form>
</nav>
<section id='main' class="content source"><pre class="line-numbers"><span id="1"> 1</span>
<span id="2"> 2</span>
<span id="3"> 3</span>
<span id="4"> 4</span>
<span id="5"> 5</span>
<span id="6"> 6</span>
<span id="7"> 7</span>
<span id="8"> 8</span>
<span id="9"> 9</span>
<span id="10"> 10</span>
<span id="11"> 11</span>
<span id="12"> 12</span>
<span id="13"> 13</span>
<span id="14"> 14</span>
<span id="15"> 15</span>
<span id="16"> 16</span>
<span id="17"> 17</span>
<span id="18"> 18</span>
<span id="19"> 19</span>
<span id="20"> 20</span>
<span id="21"> 21</span>
<span id="22"> 22</span>
<span id="23"> 23</span>
<span id="24"> 24</span>
<span id="25"> 25</span>
<span id="26"> 26</span>
<span id="27"> 27</span>
<span id="28"> 28</span>
<span id="29"> 29</span>
<span id="30"> 30</span>
<span id="31"> 31</span>
<span id="32"> 32</span>
<span id="33"> 33</span>
<span id="34"> 34</span>
<span id="35"> 35</span>
<span id="36"> 36</span>
<span id="37"> 37</span>
<span id="38"> 38</span>
<span id="39"> 39</span>
<span id="40"> 40</span>
<span id="41"> 41</span>
<span id="42"> 42</span>
<span id="43"> 43</span>
<span id="44"> 44</span>
<span id="45"> 45</span>
<span id="46"> 46</span>
<span id="47"> 47</span>
<span id="48"> 48</span>
<span id="49"> 49</span>
<span id="50"> 50</span>
<span id="51"> 51</span>
<span id="52"> 52</span>
<span id="53"> 53</span>
<span id="54"> 54</span>
<span id="55"> 55</span>
<span id="56"> 56</span>
<span id="57"> 57</span>
<span id="58"> 58</span>
<span id="59"> 59</span>
<span id="60"> 60</span>
<span id="61"> 61</span>
<span id="62"> 62</span>
<span id="63"> 63</span>
<span id="64"> 64</span>
<span id="65"> 65</span>
<span id="66"> 66</span>
<span id="67"> 67</span>
<span id="68"> 68</span>
<span id="69"> 69</span>
<span id="70"> 70</span>
<span id="71"> 71</span>
<span id="72"> 72</span>
<span id="73"> 73</span>
<span id="74"> 74</span>
<span id="75"> 75</span>
<span id="76"> 76</span>
<span id="77"> 77</span>
<span id="78"> 78</span>
<span id="79"> 79</span>
<span id="80"> 80</span>
<span id="81"> 81</span>
<span id="82"> 82</span>
<span id="83"> 83</span>
<span id="84"> 84</span>
<span id="85"> 85</span>
<span id="86"> 86</span>
<span id="87"> 87</span>
<span id="88"> 88</span>
<span id="89"> 89</span>
<span id="90"> 90</span>
<span id="91"> 91</span>
<span id="92"> 92</span>
<span id="93"> 93</span>
<span id="94"> 94</span>
<span id="95"> 95</span>
<span id="96"> 96</span>
<span id="97"> 97</span>
<span id="98"> 98</span>
<span id="99"> 99</span>
<span id="100">100</span>
<span id="101">101</span>
<span id="102">102</span>
<span id="103">103</span>
<span id="104">104</span>
<span id="105">105</span>
<span id="106">106</span>
<span id="107">107</span>
<span id="108">108</span>
<span id="109">109</span>
<span id="110">110</span>
<span id="111">111</span>
<span id="112">112</span>
<span id="113">113</span>
<span id="114">114</span>
<span id="115">115</span>
<span id="116">116</span>
<span id="117">117</span>
<span id="118">118</span>
<span id="119">119</span>
<span id="120">120</span>
<span id="121">121</span>
<span id="122">122</span>
<span id="123">123</span>
<span id="124">124</span>
<span id="125">125</span>
<span id="126">126</span>
<span id="127">127</span>
<span id="128">128</span>
<span id="129">129</span>
<span id="130">130</span>
<span id="131">131</span>
<span id="132">132</span>
<span id="133">133</span>
<span id="134">134</span>
<span id="135">135</span>
<span id="136">136</span>
<span id="137">137</span>
<span id="138">138</span>
<span id="139">139</span>
<span id="140">140</span>
<span id="141">141</span>
<span id="142">142</span>
<span id="143">143</span>
<span id="144">144</span>
<span id="145">145</span>
<span id="146">146</span>
<span id="147">147</span>
<span id="148">148</span>
<span id="149">149</span>
<span id="150">150</span>
<span id="151">151</span>
<span id="152">152</span>
<span id="153">153</span>
<span id="154">154</span>
<span id="155">155</span>
<span id="156">156</span>
<span id="157">157</span>
<span id="158">158</span>
<span id="159">159</span>
<span id="160">160</span>
<span id="161">161</span>
<span id="162">162</span>
<span id="163">163</span>
<span id="164">164</span>
<span id="165">165</span>
<span id="166">166</span>
<span id="167">167</span>
<span id="168">168</span>
<span id="169">169</span>
<span id="170">170</span>
<span id="171">171</span>
<span id="172">172</span>
<span id="173">173</span>
<span id="174">174</span>
<span id="175">175</span>
<span id="176">176</span>
<span id="177">177</span>
<span id="178">178</span>
<span id="179">179</span>
<span id="180">180</span>
<span id="181">181</span>
<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>
</pre><pre class='rust '>
<span class='doccomment'>//! Generic data structure serialization framework.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! The two most important traits in this module are `Serialize` and</span>
<span class='doccomment'>//! `Serializer`.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! - **A type that implements `Serialize` is a data structure** that can be</span>
<span class='doccomment'>//! serialized to any data format supported by Serde, and conversely</span>
<span class='doccomment'>//! - **A type that implements `Serializer` is a data format** that can</span>
<span class='doccomment'>//! serialize any data structure supported by Serde.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! # The Serialize trait</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! Serde provides `Serialize` implementations for many Rust primitive and</span>
<span class='doccomment'>//! standard library types. The complete list is below. All of these can be</span>
<span class='doccomment'>//! serialized using Serde out of the box.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! Additionally, Serde provides a procedural macro called `serde_derive` to</span>
<span class='doccomment'>//! automatically generate `Serialize` implementations for structs and enums in</span>
<span class='doccomment'>//! your program. See the [codegen section of the manual][codegen] for how to</span>
<span class='doccomment'>//! use this.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! In rare cases it may be necessary to implement `Serialize` manually for some</span>
<span class='doccomment'>//! type in your program. See the [Implementing `Serialize`][impl-serialize]</span>
<span class='doccomment'>//! section of the manual for more about this.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! Third-party crates may provide `Serialize` implementations for types that</span>
<span class='doccomment'>//! they expose. For example the `linked-hash-map` crate provides a</span>
<span class='doccomment'>//! `LinkedHashMap<K, V>` type that is serializable by Serde because the crate</span>
<span class='doccomment'>//! provides an implementation of `Serialize` for it.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! # The Serializer trait</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! `Serializer` implementations are provided by third-party crates, for example</span>
<span class='doccomment'>//! [`serde_json`][serde_json], [`serde_yaml`][serde_yaml] and</span>
<span class='doccomment'>//! [`bincode`][bincode].</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! A partial list of well-maintained formats is given on the [Serde</span>
<span class='doccomment'>//! website][data-formats].</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! # Implementations of Serialize provided by Serde</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! - **Primitive types**:</span>
<span class='doccomment'>//! - bool</span>
<span class='doccomment'>//! - isize, i8, i16, i32, i64</span>
<span class='doccomment'>//! - usize, u8, u16, u32, u64</span>
<span class='doccomment'>//! - f32, f64</span>
<span class='doccomment'>//! - char</span>
<span class='doccomment'>//! - str</span>
<span class='doccomment'>//! - &T and &mut T</span>
<span class='doccomment'>//! - **Compound types**:</span>
<span class='doccomment'>//! - [T]</span>
<span class='doccomment'>//! - [T; 0] through [T; 32]</span>
<span class='doccomment'>//! - tuples up to size 16</span>
<span class='doccomment'>//! - **Common standard library types**:</span>
<span class='doccomment'>//! - String</span>
<span class='doccomment'>//! - Option\<T\></span>
<span class='doccomment'>//! - Result\<T, E\></span>
<span class='doccomment'>//! - PhantomData\<T\></span>
<span class='doccomment'>//! - **Wrapper types**:</span>
<span class='doccomment'>//! - Box\<T\></span>
<span class='doccomment'>//! - Rc\<T\></span>
<span class='doccomment'>//! - Arc\<T\></span>
<span class='doccomment'>//! - Cow\<'a, T\></span>
<span class='doccomment'>//! - **Collection types**:</span>
<span class='doccomment'>//! - BTreeMap\<K, V\></span>
<span class='doccomment'>//! - BTreeSet\<T\></span>
<span class='doccomment'>//! - BinaryHeap\<T\></span>
<span class='doccomment'>//! - HashMap\<K, V, H\></span>
<span class='doccomment'>//! - HashSet\<T, H\></span>
<span class='doccomment'>//! - LinkedList\<T\></span>
<span class='doccomment'>//! - VecDeque\<T\></span>
<span class='doccomment'>//! - Vec\<T\></span>
<span class='doccomment'>//! - EnumSet\<T\> (unstable)</span>
<span class='doccomment'>//! - **Miscellaneous standard library types**:</span>
<span class='doccomment'>//! - Duration</span>
<span class='doccomment'>//! - Path</span>
<span class='doccomment'>//! - PathBuf</span>
<span class='doccomment'>//! - Range\<T\></span>
<span class='doccomment'>//! - NonZero\<T\> (unstable)</span>
<span class='doccomment'>//! - **Net types**:</span>
<span class='doccomment'>//! - IpAddr</span>
<span class='doccomment'>//! - Ipv4Addr</span>
<span class='doccomment'>//! - Ipv6Addr</span>
<span class='doccomment'>//! - SocketAddr</span>
<span class='doccomment'>//! - SocketAddrV4</span>
<span class='doccomment'>//! - SocketAddrV6</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! [codegen]: https://serde.rs/codegen.html</span>
<span class='doccomment'>//! [impl-serialize]: https://serde.rs/impl-serialize.html</span>
<span class='doccomment'>//! [serde_json]: https://github.com/serde-rs/json</span>
<span class='doccomment'>//! [serde_yaml]: https://github.com/dtolnay/serde-yaml</span>
<span class='doccomment'>//! [bincode]: https://github.com/TyOverby/bincode</span>
<span class='doccomment'>//! [data-formats]: https://serde.rs/#data-formats</span>
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"std"</span>)]</span>
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>error</span>;
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>not</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"std"</span>))]</span>
<span class='kw'>use</span> <span class='ident'>error</span>;
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>all</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"collections"</span>, <span class='ident'>not</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"std"</span>)))]</span>
<span class='kw'>use</span> <span class='ident'>collections</span>::<span class='ident'>string</span>::<span class='ident'>String</span>;
<span class='kw'>use</span> <span class='ident'>core</span>::<span class='ident'>fmt</span>::<span class='ident'>Display</span>;
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>any</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"std"</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"collections"</span>))]</span>
<span class='kw'>use</span> <span class='ident'>core</span>::<span class='ident'>fmt</span>::<span class='ident'>Write</span>;
<span class='kw'>use</span> <span class='ident'>core</span>::<span class='ident'>iter</span>::<span class='ident'>IntoIterator</span>;
<span class='kw'>mod</span> <span class='ident'>impls</span>;
<span class='kw'>mod</span> <span class='ident'>impossible</span>;
<span class='comment'>// Helpers used by generated code. Not public API.</span>
<span class='attribute'>#[<span class='ident'>doc</span>(<span class='ident'>hidden</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>mod</span> <span class='ident'>private</span>;
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>any</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"std"</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"collections"</span>))]</span>
<span class='kw'>mod</span> <span class='ident'>content</span>;
<span class='kw'>pub</span> <span class='kw'>use</span> <span class='self'>self</span>::<span class='ident'>impossible</span>::<span class='ident'>Impossible</span>;
<span class='comment'>///////////////////////////////////////////////////////////////////////////////</span>
<span class='doccomment'>/// Trait used by `Serialize` implementations to generically construct errors</span>
<span class='doccomment'>/// belonging to the `Serializer` against which they are currently running.</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>Error</span>: <span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>error</span>::<span class='ident'>Error</span> {
<span class='doccomment'>/// Raised when a `Serialize` implementation encounters a general error</span>
<span class='doccomment'>/// while serializing a type.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The message should not be capitalized and should not end with a period.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// For example, a filesystem `Path` may refuse to serialize itself if it</span>
<span class='doccomment'>/// contains invalid UTF-8 data.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust</span>
<span class='doccomment'>/// # use serde::ser::{Serialize, Serializer, Error};</span>
<span class='doccomment'>/// # struct Path;</span>
<span class='doccomment'>/// # impl Path { fn to_str(&self) -> Option<&str> { unimplemented!() } }</span>
<span class='doccomment'>/// impl Serialize for Path {</span>
<span class='doccomment'>/// fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error></span>
<span class='doccomment'>/// where S: Serializer</span>
<span class='doccomment'>/// {</span>
<span class='doccomment'>/// match self.to_str() {</span>
<span class='doccomment'>/// Some(s) => s.serialize(serializer),</span>
<span class='doccomment'>/// None => Err(Error::custom("path contains invalid UTF-8 characters")),</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>custom</span><span class='op'><</span><span class='ident'>T</span>: <span class='ident'>Display</span><span class='op'>></span>(<span class='ident'>msg</span>: <span class='ident'>T</span>) <span class='op'>-></span> <span class='self'>Self</span>;
}
<span class='comment'>///////////////////////////////////////////////////////////////////////////////</span>
<span class='doccomment'>/// A **data structure** that can be serialized into any data format supported</span>
<span class='doccomment'>/// by Serde.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Serde provides `Serialize` implementations for many Rust primitive and</span>
<span class='doccomment'>/// standard library types. The complete list is [here][ser]. All of these can</span>
<span class='doccomment'>/// be serialized using Serde out of the box.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Additionally, Serde provides a procedural macro called `serde_derive` to</span>
<span class='doccomment'>/// automatically generate `Serialize` implementations for structs and enums in</span>
<span class='doccomment'>/// your program. See the [codegen section of the manual][codegen] for how to</span>
<span class='doccomment'>/// use this.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// In rare cases it may be necessary to implement `Serialize` manually for some</span>
<span class='doccomment'>/// type in your program. See the [Implementing `Serialize`][impl-serialize]</span>
<span class='doccomment'>/// section of the manual for more about this.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Third-party crates may provide `Serialize` implementations for types that</span>
<span class='doccomment'>/// they expose. For example the `linked-hash-map` crate provides a</span>
<span class='doccomment'>/// `LinkedHashMap<K, V>` type that is serializable by Serde because the crate</span>
<span class='doccomment'>/// provides an implementation of `Serialize` for it.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// [ser]: https://docs.serde.rs/serde/ser/index.html</span>
<span class='doccomment'>/// [codegen]: https://serde.rs/codegen.html</span>
<span class='doccomment'>/// [impl-serialize]: https://serde.rs/impl-serialize.html</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>Serialize</span> {
<span class='doccomment'>/// Serialize this value into the given Serde serializer.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// See the [Implementing `Serialize`][impl-serialize] section of the manual</span>
<span class='doccomment'>/// for more information about how to implement this method.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// [impl-serialize]: https://serde.rs/impl-serialize.html</span>
<span class='kw'>fn</span> <span class='ident'>serialize</span><span class='op'><</span><span class='ident'>S</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>serializer</span>: <span class='ident'>S</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='ident'>S</span>::<span class='prelude-val'>Ok</span>, <span class='ident'>S</span>::<span class='ident'>Error</span><span class='op'>></span> <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>Serializer</span>;
}
<span class='comment'>///////////////////////////////////////////////////////////////////////////////</span>
<span class='doccomment'>/// A **data format** that can serialize any data structure supported by Serde.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The role of this trait is to define the serialization half of the Serde data</span>
<span class='doccomment'>/// model, which is a way to categorize every Rust data structure into one of 28</span>
<span class='doccomment'>/// possible types. Each method of the `Serializer` trait corresponds to one of</span>
<span class='doccomment'>/// the types of the data model.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Implementations of `Serialize` map themselves into this data model by</span>
<span class='doccomment'>/// invoking exactly one of the `Serializer` methods.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The types that make up the Serde data model are:</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// - 12 primitive types:</span>
<span class='doccomment'>/// - bool</span>
<span class='doccomment'>/// - i8, i16, i32, i64</span>
<span class='doccomment'>/// - u8, u16, u32, u64</span>
<span class='doccomment'>/// - f32, f64</span>
<span class='doccomment'>/// - char</span>
<span class='doccomment'>/// - string</span>
<span class='doccomment'>/// - byte array - [u8]</span>
<span class='doccomment'>/// - option</span>
<span class='doccomment'>/// - either none or some value</span>
<span class='doccomment'>/// - unit</span>
<span class='doccomment'>/// - unit is the type of () in Rust</span>
<span class='doccomment'>/// - unit_struct</span>
<span class='doccomment'>/// - for example `struct Unit` or `PhantomData<T>`</span>
<span class='doccomment'>/// - unit_variant</span>
<span class='doccomment'>/// - the `E::A` and `E::B` in `enum E { A, B }`</span>
<span class='doccomment'>/// - newtype_struct</span>
<span class='doccomment'>/// - for example `struct Millimeters(u8)`</span>
<span class='doccomment'>/// - newtype_variant</span>
<span class='doccomment'>/// - the `E::N` in `enum E { N(u8) }`</span>
<span class='doccomment'>/// - seq</span>
<span class='doccomment'>/// - a dynamically sized sequence of values, for example `Vec<T>` or</span>
<span class='doccomment'>/// `HashSet<T>`</span>
<span class='doccomment'>/// - seq_fixed_size</span>
<span class='doccomment'>/// - a statically sized sequence of values for which the size will be known</span>
<span class='doccomment'>/// at deserialization time without looking at the serialized data, for</span>
<span class='doccomment'>/// example `[u64; 10]`</span>
<span class='doccomment'>/// - tuple</span>
<span class='doccomment'>/// - for example `(u8,)` or `(String, u64, Vec<T>)`</span>
<span class='doccomment'>/// - tuple_struct</span>
<span class='doccomment'>/// - for example `struct Rgb(u8, u8, u8)`</span>
<span class='doccomment'>/// - tuple_variant</span>
<span class='doccomment'>/// - the `E::T` in `enum E { T(u8, u8) }`</span>
<span class='doccomment'>/// - map</span>
<span class='doccomment'>/// - for example `BTreeMap<K, V>`</span>
<span class='doccomment'>/// - struct</span>
<span class='doccomment'>/// - a key-value pairing in which the keys will be known at deserialization</span>
<span class='doccomment'>/// time without looking at the serialized data, for example `struct S { r:</span>
<span class='doccomment'>/// u8, g: u8, b: u8 }`</span>
<span class='doccomment'>/// - struct_variant</span>
<span class='doccomment'>/// - the `E::S` in `enum E { S { r: u8, g: u8, b: u8 } }`</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Many Serde serializers produce text or binary data as output, for example</span>
<span class='doccomment'>/// JSON or Bincode. This is not a requirement of the `Serializer` trait, and</span>
<span class='doccomment'>/// there are serializers that do not produce text or binary output. One example</span>
<span class='doccomment'>/// is the `serde_json::value::Serializer` (distinct from the main `serde_json`</span>
<span class='doccomment'>/// serializer) that produces a `serde_json::Value` data structure in memory as</span>
<span class='doccomment'>/// output.</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>Serializer</span>: <span class='ident'>Sized</span> {
<span class='doccomment'>/// The output type produced by this `Serializer` during successful</span>
<span class='doccomment'>/// serialization. Most serializers that produce text or binary output</span>
<span class='doccomment'>/// should set `Ok = ()` and serialize into an `io::Write` or buffer</span>
<span class='doccomment'>/// contained within the `Serializer` instance. Serializers that build</span>
<span class='doccomment'>/// in-memory data structures may be simplified by using `Ok` to propagate</span>
<span class='doccomment'>/// the data structure around.</span>
<span class='kw'>type</span> <span class='prelude-val'>Ok</span>;
<span class='doccomment'>/// The error type when some error occurs during serialization.</span>
<span class='kw'>type</span> <span class='ident'>Error</span>: <span class='ident'>Error</span>;
<span class='doccomment'>/// Type returned from `serialize_seq` and `serialize_seq_fixed_size` for</span>
<span class='doccomment'>/// serializing the content of the sequence.</span>
<span class='kw'>type</span> <span class='ident'>SerializeSeq</span>: <span class='ident'>SerializeSeq</span><span class='op'><</span><span class='prelude-val'>Ok</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='ident'>Error</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Type returned from `serialize_tuple` for serializing the content of the</span>
<span class='doccomment'>/// tuple.</span>
<span class='kw'>type</span> <span class='ident'>SerializeTuple</span>: <span class='ident'>SerializeTuple</span><span class='op'><</span><span class='prelude-val'>Ok</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='ident'>Error</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Type returned from `serialize_tuple_struct` for serializing the content</span>
<span class='doccomment'>/// of the tuple struct.</span>
<span class='kw'>type</span> <span class='ident'>SerializeTupleStruct</span>: <span class='ident'>SerializeTupleStruct</span><span class='op'><</span><span class='prelude-val'>Ok</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='ident'>Error</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Type returned from `serialize_tuple_variant` for serializing the content</span>
<span class='doccomment'>/// of the tuple variant.</span>
<span class='kw'>type</span> <span class='ident'>SerializeTupleVariant</span>: <span class='ident'>SerializeTupleVariant</span><span class='op'><</span><span class='prelude-val'>Ok</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='ident'>Error</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Type returned from `serialize_map` for serializing the content of the</span>
<span class='doccomment'>/// map.</span>
<span class='kw'>type</span> <span class='ident'>SerializeMap</span>: <span class='ident'>SerializeMap</span><span class='op'><</span><span class='prelude-val'>Ok</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='ident'>Error</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Type returned from `serialize_struct` for serializing the content of the</span>
<span class='doccomment'>/// struct.</span>
<span class='kw'>type</span> <span class='ident'>SerializeStruct</span>: <span class='ident'>SerializeStruct</span><span class='op'><</span><span class='prelude-val'>Ok</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='ident'>Error</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Type returned from `serialize_struct_variant` for serializing the</span>
<span class='doccomment'>/// content of the struct variant.</span>
<span class='kw'>type</span> <span class='ident'>SerializeStructVariant</span>: <span class='ident'>SerializeStructVariant</span><span class='op'><</span><span class='prelude-val'>Ok</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='ident'>Error</span> <span class='op'>=</span> <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `bool` value.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_bool</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>bool</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize an `i8` value.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If the format does not differentiate between `i8` and `i64`, a</span>
<span class='doccomment'>/// reasonable implementation would be to cast the value to `i64` and</span>
<span class='doccomment'>/// forward to `serialize_i64`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_i8</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>i8</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize an `i16` value.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If the format does not differentiate between `i16` and `i64`, a</span>
<span class='doccomment'>/// reasonable implementation would be to cast the value to `i64` and</span>
<span class='doccomment'>/// forward to `serialize_i64`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_i16</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>i16</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize an `i32` value.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If the format does not differentiate between `i32` and `i64`, a</span>
<span class='doccomment'>/// reasonable implementation would be to cast the value to `i64` and</span>
<span class='doccomment'>/// forward to `serialize_i64`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_i32</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>i32</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize an `i64` value.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_i64</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>i64</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `u8` value.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If the format does not differentiate between `u8` and `u64`, a</span>
<span class='doccomment'>/// reasonable implementation would be to cast the value to `u64` and</span>
<span class='doccomment'>/// forward to `serialize_u64`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_u8</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>u8</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `u16` value.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If the format does not differentiate between `u16` and `u64`, a</span>
<span class='doccomment'>/// reasonable implementation would be to cast the value to `u64` and</span>
<span class='doccomment'>/// forward to `serialize_u64`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_u16</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>u16</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `u32` value.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If the format does not differentiate between `u32` and `u64`, a</span>
<span class='doccomment'>/// reasonable implementation would be to cast the value to `u64` and</span>
<span class='doccomment'>/// forward to `serialize_u64`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_u32</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>u32</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `u64` value.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_u64</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>u64</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize an `f32` value.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If the format does not differentiate between `f32` and `f64`, a</span>
<span class='doccomment'>/// reasonable implementation would be to cast the value to `f64` and</span>
<span class='doccomment'>/// forward to `serialize_f64`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_f32</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>f32</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize an `f64` value.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_f64</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>f64</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a character.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If the format does not support characters, it is reasonable to serialize</span>
<span class='doccomment'>/// it as a single element `str` or a `u32`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_char</span>(<span class='self'>self</span>, <span class='ident'>v</span>: <span class='ident'>char</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `&str`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_str</span>(<span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a chunk of raw byte data.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Enables serializers to serialize byte slices more compactly or more</span>
<span class='doccomment'>/// efficiently than other types of slices. If no efficient implementation</span>
<span class='doccomment'>/// is available, a reasonable implementation would be to forward to</span>
<span class='doccomment'>/// `serialize_seq`. If forwarded, the implementation looks usually just</span>
<span class='doccomment'>/// like this:</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut seq = self.serialize_seq(Some(value.len()))?;</span>
<span class='doccomment'>/// for b in value {</span>
<span class='doccomment'>/// seq.serialize_element(b)?;</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// seq.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_bytes</span>(<span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `None` value.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_none</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `Some(T)` value.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_some</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a `()` value.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_unit</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a unit struct like `struct Unit` or `PhantomData<T>`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// A reasonable implementation would be to forward to `serialize_unit`.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_unit_struct</span>(<span class='self'>self</span>, <span class='ident'>name</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a unit variant like `E::A` in `enum E { A, B }`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The `name` is the name of the enum, the `variant_index` is the index of</span>
<span class='doccomment'>/// this variant within the enum, and the `variant` is the name of the</span>
<span class='doccomment'>/// variant.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// A reasonable implementation would be to forward to `serialize_unit`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// match *self {</span>
<span class='doccomment'>/// E::A => serializer.serialize_unit_variant("E", 0, "A"),</span>
<span class='doccomment'>/// E::B => serializer.serialize_unit_variant("E", 1, "B"),</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_unit_variant</span>(<span class='self'>self</span>,
<span class='ident'>name</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>variant_index</span>: <span class='ident'>usize</span>,
<span class='ident'>variant</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a newtype struct like `struct Millimeters(u8)`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Serializers are encouraged to treat newtype structs as insignificant</span>
<span class='doccomment'>/// wrappers around the data they contain. A reasonable implementation would</span>
<span class='doccomment'>/// be to forward to `value.serialize(self)`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// serializer.serialize_newtype_struct("Millimeters", &self.0)</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_newtype_struct</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='self'>self</span>,
<span class='ident'>name</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a newtype variant like `E::N` in `enum E { N(u8) }`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The `name` is the name of the enum, the `variant_index` is the index of</span>
<span class='doccomment'>/// this variant within the enum, and the `variant` is the name of the</span>
<span class='doccomment'>/// variant. The `value` is the data contained within this newtype variant.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// match *self {</span>
<span class='doccomment'>/// E::N(ref n) => serializer.serialize_newtype_variant("E", 0, "N", n),</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_newtype_variant</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='self'>self</span>,
<span class='ident'>name</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>variant_index</span>: <span class='ident'>usize</span>,
<span class='ident'>variant</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Begin to serialize a dynamically sized sequence. This call must be</span>
<span class='doccomment'>/// followed by zero or more calls to `serialize_element`, then a call to</span>
<span class='doccomment'>/// `end`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The argument is the number of elements in the sequence, which may or may</span>
<span class='doccomment'>/// not be computable before the sequence is iterated. Some serializers only</span>
<span class='doccomment'>/// support sequences whose length is known up front.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut seq = serializer.serialize_seq(Some(self.len()))?;</span>
<span class='doccomment'>/// for element in self {</span>
<span class='doccomment'>/// seq.serialize_element(element)?;</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// seq.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_seq</span>(<span class='self'>self</span>, <span class='ident'>len</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='ident'>SerializeSeq</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Begin to serialize a statically sized sequence whose length will be</span>
<span class='doccomment'>/// known at deserialization time without looking at the serialized data.</span>
<span class='doccomment'>/// This call must be followed by zero or more calls to `serialize_element`,</span>
<span class='doccomment'>/// then a call to `end`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut seq = serializer.serialize_seq_fixed_size(self.len())?;</span>
<span class='doccomment'>/// for element in self {</span>
<span class='doccomment'>/// seq.serialize_element(element)?;</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// seq.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_seq_fixed_size</span>(<span class='self'>self</span>, <span class='ident'>size</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='ident'>SerializeSeq</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Begin to serialize a tuple. This call must be followed by zero or more</span>
<span class='doccomment'>/// calls to `serialize_element`, then a call to `end`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut tup = serializer.serialize_tuple(3)?;</span>
<span class='doccomment'>/// tup.serialize_element(&self.0)?;</span>
<span class='doccomment'>/// tup.serialize_element(&self.1)?;</span>
<span class='doccomment'>/// tup.serialize_element(&self.2)?;</span>
<span class='doccomment'>/// tup.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_tuple</span>(<span class='self'>self</span>, <span class='ident'>len</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='ident'>SerializeTuple</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Begin to serialize a tuple struct like `struct Rgb(u8, u8, u8)`. This</span>
<span class='doccomment'>/// call must be followed by zero or more calls to `serialize_field`, then a</span>
<span class='doccomment'>/// call to `end`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The `name` is the name of the tuple struct and the `len` is the number</span>
<span class='doccomment'>/// of data fields that will be serialized.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut ts = serializer.serialize_tuple_struct("Rgb", 3)?;</span>
<span class='doccomment'>/// ts.serialize_field(&self.0)?;</span>
<span class='doccomment'>/// ts.serialize_field(&self.1)?;</span>
<span class='doccomment'>/// ts.serialize_field(&self.2)?;</span>
<span class='doccomment'>/// ts.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_tuple_struct</span>(<span class='self'>self</span>,
<span class='ident'>name</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>len</span>: <span class='ident'>usize</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='ident'>SerializeTupleStruct</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Begin to serialize a tuple variant like `E::T` in `enum E { T(u8, u8)</span>
<span class='doccomment'>/// }`. This call must be followed by zero or more calls to</span>
<span class='doccomment'>/// `serialize_field`, then a call to `end`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The `name` is the name of the enum, the `variant_index` is the index of</span>
<span class='doccomment'>/// this variant within the enum, the `variant` is the name of the variant,</span>
<span class='doccomment'>/// and the `len` is the number of data fields that will be serialized.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// match *self {</span>
<span class='doccomment'>/// E::T(ref a, ref b) => {</span>
<span class='doccomment'>/// let mut tv = serializer.serialize_tuple_variant("E", 0, "T", 2)?;</span>
<span class='doccomment'>/// tv.serialize_field(a)?;</span>
<span class='doccomment'>/// tv.serialize_field(b)?;</span>
<span class='doccomment'>/// tv.end()</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_tuple_variant</span>(<span class='self'>self</span>,
<span class='ident'>name</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>variant_index</span>: <span class='ident'>usize</span>,
<span class='ident'>variant</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>len</span>: <span class='ident'>usize</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='ident'>SerializeTupleVariant</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Begin to serialize a map. This call must be followed by zero or more</span>
<span class='doccomment'>/// calls to `serialize_key` and `serialize_value`, then a call to `end`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The argument is the number of elements in the map, which may or may not</span>
<span class='doccomment'>/// be computable before the map is iterated. Some serializers only support</span>
<span class='doccomment'>/// maps whose length is known up front.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut map = serializer.serialize_map(Some(self.len()))?;</span>
<span class='doccomment'>/// for (k, v) in self {</span>
<span class='doccomment'>/// map.serialize_entry(k, v)?;</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// map.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_map</span>(<span class='self'>self</span>, <span class='ident'>len</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='ident'>SerializeMap</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Begin to serialize a struct like `struct Rgb { r: u8, g: u8, b: u8 }`.</span>
<span class='doccomment'>/// This call must be followed by zero or more calls to `serialize_field`,</span>
<span class='doccomment'>/// then a call to `end`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The `name` is the name of the struct and the `len` is the number of</span>
<span class='doccomment'>/// data fields that will be serialized.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut struc = serializer.serialize_struct("Rgb", 3)?;</span>
<span class='doccomment'>/// struc.serialize_field("r", &self.r)?;</span>
<span class='doccomment'>/// struc.serialize_field("g", &self.g)?;</span>
<span class='doccomment'>/// struc.serialize_field("b", &self.b)?;</span>
<span class='doccomment'>/// struc.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_struct</span>(<span class='self'>self</span>,
<span class='ident'>name</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>len</span>: <span class='ident'>usize</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='ident'>SerializeStruct</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Begin to serialize a struct variant like `E::S` in `enum E { S { r: u8,</span>
<span class='doccomment'>/// g: u8, b: u8 } }`. This call must be followed by zero or more calls to</span>
<span class='doccomment'>/// `serialize_field`, then a call to `end`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The `name` is the name of the enum, the `variant_index` is the index of</span>
<span class='doccomment'>/// this variant within the enum, the `variant` is the name of the variant,</span>
<span class='doccomment'>/// and the `len` is the number of data fields that will be serialized.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// match *self {</span>
<span class='doccomment'>/// E::S { ref r, ref g, ref b } => {</span>
<span class='doccomment'>/// let mut sv = serializer.serialize_struct_variant("E", 0, "S", 3)?;</span>
<span class='doccomment'>/// sv.serialize_field("r", r)?;</span>
<span class='doccomment'>/// sv.serialize_field("g", g)?;</span>
<span class='doccomment'>/// sv.serialize_field("b", b)?;</span>
<span class='doccomment'>/// sv.end()</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>fn</span> <span class='ident'>serialize_struct_variant</span>(<span class='self'>self</span>,
<span class='ident'>name</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>variant_index</span>: <span class='ident'>usize</span>,
<span class='ident'>variant</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>len</span>: <span class='ident'>usize</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='ident'>SerializeStructVariant</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Collect an iterator as a sequence.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The default implementation serializes each item yielded by the iterator</span>
<span class='doccomment'>/// using `Self::SerializeSeq`. Implementors should not need to override</span>
<span class='doccomment'>/// this method.</span>
<span class='kw'>fn</span> <span class='ident'>collect_seq</span><span class='op'><</span><span class='ident'>I</span><span class='op'>></span>(<span class='self'>self</span>, <span class='ident'>iter</span>: <span class='ident'>I</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>
<span class='kw'>where</span> <span class='ident'>I</span>: <span class='ident'>IntoIterator</span>,
<span class='op'><</span><span class='ident'>I</span> <span class='kw'>as</span> <span class='ident'>IntoIterator</span><span class='op'>></span>::<span class='ident'>Item</span>: <span class='ident'>Serialize</span>
{
<span class='kw'>let</span> <span class='ident'>iter</span> <span class='op'>=</span> <span class='ident'>iter</span>.<span class='ident'>into_iter</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>serializer</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>serialize_seq</span>(<span class='ident'>iter</span>.<span class='ident'>len_hint</span>()));
<span class='kw'>for</span> <span class='ident'>item</span> <span class='kw'>in</span> <span class='ident'>iter</span> {
<span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>serializer</span>.<span class='ident'>serialize_element</span>(<span class='kw-2'>&</span><span class='ident'>item</span>));
}
<span class='ident'>serializer</span>.<span class='ident'>end</span>()
}
<span class='doccomment'>/// Collect an iterator as a map.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The default implementation serializes each pair yielded by the iterator</span>
<span class='doccomment'>/// using `Self::SerializeMap`. Implementors should not need to override</span>
<span class='doccomment'>/// this method.</span>
<span class='kw'>fn</span> <span class='ident'>collect_map</span><span class='op'><</span><span class='ident'>K</span>, <span class='ident'>V</span>, <span class='ident'>I</span><span class='op'>></span>(<span class='self'>self</span>, <span class='ident'>iter</span>: <span class='ident'>I</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>
<span class='kw'>where</span> <span class='ident'>K</span>: <span class='ident'>Serialize</span>,
<span class='ident'>V</span>: <span class='ident'>Serialize</span>,
<span class='ident'>I</span>: <span class='ident'>IntoIterator</span><span class='op'><</span><span class='ident'>Item</span> <span class='op'>=</span> (<span class='ident'>K</span>, <span class='ident'>V</span>)<span class='op'>></span>
{
<span class='kw'>let</span> <span class='ident'>iter</span> <span class='op'>=</span> <span class='ident'>iter</span>.<span class='ident'>into_iter</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>serializer</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>serialize_map</span>(<span class='ident'>iter</span>.<span class='ident'>len_hint</span>()));
<span class='kw'>for</span> (<span class='ident'>key</span>, <span class='ident'>value</span>) <span class='kw'>in</span> <span class='ident'>iter</span> {
<span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>serializer</span>.<span class='ident'>serialize_entry</span>(<span class='kw-2'>&</span><span class='ident'>key</span>, <span class='kw-2'>&</span><span class='ident'>value</span>));
}
<span class='ident'>serializer</span>.<span class='ident'>end</span>()
}
<span class='doccomment'>/// Serialize a string produced by an implementation of `Display`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The default implementation builds a heap-allocated `String` and</span>
<span class='doccomment'>/// delegates to `serialize_str`. Serializers are encouraged to provide a</span>
<span class='doccomment'>/// more efficient implementation if possible.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust</span>
<span class='doccomment'>/// # use serde::{Serialize, Serializer};</span>
<span class='doccomment'>/// # struct DateTime;</span>
<span class='doccomment'>/// # impl DateTime {</span>
<span class='doccomment'>/// # fn naive_local(&self) -> () { () }</span>
<span class='doccomment'>/// # fn offset(&self) -> () { () }</span>
<span class='doccomment'>/// # }</span>
<span class='doccomment'>/// impl Serialize for DateTime {</span>
<span class='doccomment'>/// fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error></span>
<span class='doccomment'>/// where S: Serializer</span>
<span class='doccomment'>/// {</span>
<span class='doccomment'>/// serializer.collect_str(&format_args!("{:?}{:?}",</span>
<span class='doccomment'>/// self.naive_local(),</span>
<span class='doccomment'>/// self.offset()))</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>any</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"std"</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"collections"</span>))]</span>
<span class='kw'>fn</span> <span class='ident'>collect_str</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span><span class='op'>></span>(<span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>
<span class='kw'>where</span> <span class='ident'>T</span>: <span class='ident'>Display</span>
{
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>string</span> <span class='op'>=</span> <span class='ident'>String</span>::<span class='ident'>new</span>();
<span class='macro'>write</span><span class='macro'>!</span>(<span class='ident'>string</span>, <span class='string'>"{}"</span>, <span class='ident'>value</span>).<span class='ident'>unwrap</span>();
<span class='self'>self</span>.<span class='ident'>serialize_str</span>(<span class='kw-2'>&</span><span class='ident'>string</span>)
}
<span class='doccomment'>/// Serialize a string produced by an implementation of `Display`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The default implementation returns an error unconditionally when</span>
<span class='doccomment'>/// compiled with `no_std`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust</span>
<span class='doccomment'>/// # use serde::{Serialize, Serializer};</span>
<span class='doccomment'>/// # struct DateTime;</span>
<span class='doccomment'>/// # impl DateTime {</span>
<span class='doccomment'>/// # fn naive_local(&self) -> () { () }</span>
<span class='doccomment'>/// # fn offset(&self) -> () { () }</span>
<span class='doccomment'>/// # }</span>
<span class='doccomment'>/// impl Serialize for DateTime {</span>
<span class='doccomment'>/// fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error></span>
<span class='doccomment'>/// where S: Serializer</span>
<span class='doccomment'>/// {</span>
<span class='doccomment'>/// serializer.collect_str(&format_args!("{:?}{:?}",</span>
<span class='doccomment'>/// self.naive_local(),</span>
<span class='doccomment'>/// self.offset()))</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>not</span>(<span class='ident'>any</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"std"</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"collections"</span>)))]</span>
<span class='kw'>fn</span> <span class='ident'>collect_str</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span><span class='op'>></span>(<span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>
<span class='kw'>where</span> <span class='ident'>T</span>: <span class='ident'>Display</span>
{
<span class='comment'>// TODO https://github.com/serde-rs/serde/issues/805</span>
<span class='comment'>// Remove this impl and force no_std formats to implement collect_str.</span>
<span class='kw'>let</span> _ <span class='op'>=</span> <span class='ident'>value</span>;
<span class='prelude-val'>Err</span>(<span class='ident'>Error</span>::<span class='ident'>custom</span>(<span class='string'>"this no_std format does not support serializing strings with collect_str"</span>))
}
}
<span class='doccomment'>/// Returned from `Serializer::serialize_seq` and</span>
<span class='doccomment'>/// `Serializer::serialize_seq_fixed_size`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut seq = serializer.serialize_seq(Some(self.len()))?;</span>
<span class='doccomment'>/// for element in self {</span>
<span class='doccomment'>/// seq.serialize_element(element)?;</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// seq.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>SerializeSeq</span> {
<span class='doccomment'>/// Must match the `Ok` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='prelude-val'>Ok</span>;
<span class='doccomment'>/// Must match the `Error` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='ident'>Error</span>: <span class='ident'>Error</span>;
<span class='doccomment'>/// Serialize a sequence element.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_element</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Finish serializing a sequence.</span>
<span class='kw'>fn</span> <span class='ident'>end</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
}
<span class='doccomment'>/// Returned from `Serializer::serialize_tuple`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut tup = serializer.serialize_tuple(3)?;</span>
<span class='doccomment'>/// tup.serialize_element(&self.0)?;</span>
<span class='doccomment'>/// tup.serialize_element(&self.1)?;</span>
<span class='doccomment'>/// tup.serialize_element(&self.2)?;</span>
<span class='doccomment'>/// tup.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>SerializeTuple</span> {
<span class='doccomment'>/// Must match the `Ok` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='prelude-val'>Ok</span>;
<span class='doccomment'>/// Must match the `Error` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='ident'>Error</span>: <span class='ident'>Error</span>;
<span class='doccomment'>/// Serialize a tuple element.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_element</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Finish serializing a tuple.</span>
<span class='kw'>fn</span> <span class='ident'>end</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
}
<span class='doccomment'>/// Returned from `Serializer::serialize_tuple_struct`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut ts = serializer.serialize_tuple_struct("Rgb", 3)?;</span>
<span class='doccomment'>/// ts.serialize_field(&self.0)?;</span>
<span class='doccomment'>/// ts.serialize_field(&self.1)?;</span>
<span class='doccomment'>/// ts.serialize_field(&self.2)?;</span>
<span class='doccomment'>/// ts.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>SerializeTupleStruct</span> {
<span class='doccomment'>/// Must match the `Ok` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='prelude-val'>Ok</span>;
<span class='doccomment'>/// Must match the `Error` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='ident'>Error</span>: <span class='ident'>Error</span>;
<span class='doccomment'>/// Serialize a tuple struct field.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_field</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Finish serializing a tuple struct.</span>
<span class='kw'>fn</span> <span class='ident'>end</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
}
<span class='doccomment'>/// Returned from `Serializer::serialize_tuple_variant`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// match *self {</span>
<span class='doccomment'>/// E::T(ref a, ref b) => {</span>
<span class='doccomment'>/// let mut tv = serializer.serialize_tuple_variant("E", 0, "T", 2)?;</span>
<span class='doccomment'>/// tv.serialize_field(a)?;</span>
<span class='doccomment'>/// tv.serialize_field(b)?;</span>
<span class='doccomment'>/// tv.end()</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>SerializeTupleVariant</span> {
<span class='doccomment'>/// Must match the `Ok` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='prelude-val'>Ok</span>;
<span class='doccomment'>/// Must match the `Error` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='ident'>Error</span>: <span class='ident'>Error</span>;
<span class='doccomment'>/// Serialize a tuple variant field.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_field</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Finish serializing a tuple variant.</span>
<span class='kw'>fn</span> <span class='ident'>end</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
}
<span class='doccomment'>/// Returned from `Serializer::serialize_map`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut map = serializer.serialize_map(Some(self.len()))?;</span>
<span class='doccomment'>/// for (k, v) in self {</span>
<span class='doccomment'>/// map.serialize_entry(k, v)?;</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// map.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>SerializeMap</span> {
<span class='doccomment'>/// Must match the `Ok` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='prelude-val'>Ok</span>;
<span class='doccomment'>/// Must match the `Error` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='ident'>Error</span>: <span class='ident'>Error</span>;
<span class='doccomment'>/// Serialize a map key.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_key</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>key</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a map value.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_value</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Serialize a map entry consisting of a key and a value.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Some `Serialize` types are not able to hold a key and value in memory at</span>
<span class='doccomment'>/// the same time so `SerializeMap` implementations are required to support</span>
<span class='doccomment'>/// `serialize_key` and `serialize_value` individually. The</span>
<span class='doccomment'>/// `serialize_entry` method allows serializers to optimize for the case</span>
<span class='doccomment'>/// where key and value are both available. `Serialize` implementations are</span>
<span class='doccomment'>/// encouraged to use `serialize_entry` if possible.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The default implementation delegates to `serialize_key` and</span>
<span class='doccomment'>/// `serialize_value`. This is appropriate for serializers that do not care</span>
<span class='doccomment'>/// about performance or are not able to optimize `serialize_entry` any</span>
<span class='doccomment'>/// better than this.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_entry</span><span class='op'><</span><span class='ident'>K</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span>, <span class='ident'>V</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>,
<span class='ident'>key</span>: <span class='kw-2'>&</span><span class='ident'>K</span>,
<span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>V</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span> {
<span class='macro'>try</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>serialize_key</span>(<span class='ident'>key</span>));
<span class='self'>self</span>.<span class='ident'>serialize_value</span>(<span class='ident'>value</span>)
}
<span class='doccomment'>/// Finish serializing a map.</span>
<span class='kw'>fn</span> <span class='ident'>end</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
}
<span class='doccomment'>/// Returned from `Serializer::serialize_struct`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// let mut struc = serializer.serialize_struct("Rgb", 3)?;</span>
<span class='doccomment'>/// struc.serialize_field("r", &self.r)?;</span>
<span class='doccomment'>/// struc.serialize_field("g", &self.g)?;</span>
<span class='doccomment'>/// struc.serialize_field("b", &self.b)?;</span>
<span class='doccomment'>/// struc.end()</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>SerializeStruct</span> {
<span class='doccomment'>/// Must match the `Ok` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='prelude-val'>Ok</span>;
<span class='doccomment'>/// Must match the `Error` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='ident'>Error</span>: <span class='ident'>Error</span>;
<span class='doccomment'>/// Serialize a struct field.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_field</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>,
<span class='ident'>key</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Finish serializing a struct.</span>
<span class='kw'>fn</span> <span class='ident'>end</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
}
<span class='doccomment'>/// Returned from `Serializer::serialize_struct_variant`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```rust,ignore</span>
<span class='doccomment'>/// match *self {</span>
<span class='doccomment'>/// E::S { ref r, ref g, ref b } => {</span>
<span class='doccomment'>/// let mut sv = serializer.serialize_struct_variant("E", 0, "S", 3)?;</span>
<span class='doccomment'>/// sv.serialize_field("r", r)?;</span>
<span class='doccomment'>/// sv.serialize_field("g", g)?;</span>
<span class='doccomment'>/// sv.serialize_field("b", b)?;</span>
<span class='doccomment'>/// sv.end()</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>SerializeStructVariant</span> {
<span class='doccomment'>/// Must match the `Ok` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='prelude-val'>Ok</span>;
<span class='doccomment'>/// Must match the `Error` type of our `Serializer`.</span>
<span class='kw'>type</span> <span class='ident'>Error</span>: <span class='ident'>Error</span>;
<span class='doccomment'>/// Serialize a struct variant field.</span>
<span class='kw'>fn</span> <span class='ident'>serialize_field</span><span class='op'><</span><span class='ident'>T</span>: <span class='question-mark'>?</span><span class='ident'>Sized</span> <span class='op'>+</span> <span class='ident'>Serialize</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>,
<span class='ident'>key</span>: <span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>,
<span class='ident'>value</span>: <span class='kw-2'>&</span><span class='ident'>T</span>)
<span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span>(), <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
<span class='doccomment'>/// Finish serializing a struct variant.</span>
<span class='kw'>fn</span> <span class='ident'>end</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='self'>Self</span>::<span class='prelude-val'>Ok</span>, <span class='self'>Self</span>::<span class='ident'>Error</span><span class='op'>></span>;
}
<span class='kw'>trait</span> <span class='ident'>LenHint</span>: <span class='ident'>Iterator</span> {
<span class='kw'>fn</span> <span class='ident'>len_hint</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span>;
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>I</span>: <span class='ident'>Iterator</span><span class='op'>></span> <span class='ident'>LenHint</span> <span class='kw'>for</span> <span class='ident'>I</span> {
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>not</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"unstable"</span>))]</span>
<span class='kw'>fn</span> <span class='ident'>len_hint</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span> {
<span class='ident'>iterator_len_hint</span>(<span class='self'>self</span>)
}
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"unstable"</span>)]</span>
<span class='ident'>default</span> <span class='kw'>fn</span> <span class='ident'>len_hint</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span> {
<span class='ident'>iterator_len_hint</span>(<span class='self'>self</span>)
}
}
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"unstable"</span>)]</span>
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>I</span>: <span class='ident'>ExactSizeIterator</span><span class='op'>></span> <span class='ident'>LenHint</span> <span class='kw'>for</span> <span class='ident'>I</span> {
<span class='kw'>fn</span> <span class='ident'>len_hint</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span> {
<span class='prelude-val'>Some</span>(<span class='self'>self</span>.<span class='ident'>len</span>())
}
}
<span class='kw'>fn</span> <span class='ident'>iterator_len_hint</span><span class='op'><</span><span class='ident'>I</span>: <span class='ident'>Iterator</span><span class='op'>></span>(<span class='ident'>iter</span>: <span class='kw-2'>&</span><span class='ident'>I</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span> {
<span class='kw'>match</span> <span class='ident'>iter</span>.<span class='ident'>size_hint</span>() {
(<span class='ident'>lo</span>, <span class='prelude-val'>Some</span>(<span class='ident'>hi</span>)) <span class='kw'>if</span> <span class='ident'>lo</span> <span class='op'>==</span> <span class='ident'>hi</span> <span class='op'>=></span> <span class='prelude-val'>Some</span>(<span class='ident'>lo</span>),
_ <span class='op'>=></span> <span class='prelude-val'>None</span>,
}
}
</pre>
</section>
<section id='search' class="content hidden"></section>
<section class="footer"></section>
<aside id="help" class="hidden">
<div>
<h1 class="hidden">Help</h1>
<div class="shortcuts">
<h2>Keyboard Shortcuts</h2>
<dl>
<dt>?</dt>
<dd>Show this help dialog</dd>
<dt>S</dt>
<dd>Focus the search field</dd>
<dt>⇤</dt>
<dd>Move up in search results</dd>
<dt>⇥</dt>
<dd>Move down in search results</dd>
<dt>⏎</dt>
<dd>Go to active search result</dd>
<dt>+</dt>
<dd>Collapse/expand all sections</dd>
</dl>
</div>
<div class="infos">
<h2>Search Tricks</h2>
<p>
Prefix searches with a type followed by a colon (e.g.
<code>fn:</code>) to restrict the search to a given type.
</p>
<p>
Accepted types are: <code>fn</code>, <code>mod</code>,
<code>struct</code>, <code>enum</code>,
<code>trait</code>, <code>type</code>, <code>macro</code>,
and <code>const</code>.
</p>
<p>
Search functions by type signature (e.g.
<code>vec -> usize</code> or <code>* -> vec</code>)
</p>
</div>
</div>
</aside>
<script>
window.rootPath = "../../../";
window.currentCrate = "serde";
</script>
<script src="../../../jquery.js"></script>
<script src="../../../main.js"></script>
<script defer src="../../../search-index.js"></script>
</body>
</html>