257 lines
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257 lines
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `C:\Users\szend\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\matchit-0.7.3\src\params.rs`."><title>params.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="matchit" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">matchit/</div>params.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>std::iter;
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<a href=#2 id=2 data-nosnippet>2</a><span class="kw">use </span>std::mem;
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<a href=#3 id=3 data-nosnippet>3</a><span class="kw">use </span>std::slice;
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<a href=#4 id=4 data-nosnippet>4</a>
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<a href=#5 id=5 data-nosnippet>5</a><span class="doccomment">/// A single URL parameter, consisting of a key and a value.
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<a href=#6 id=6 data-nosnippet>6</a></span><span class="attr">#[derive(Debug, PartialEq, Eq, Ord, PartialOrd, Default, Copy, Clone)]
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<a href=#7 id=7 data-nosnippet>7</a></span><span class="kw">struct </span>Param<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#8 id=8 data-nosnippet>8</a> key: <span class="kw-2">&</span><span class="lifetime">'k </span>[u8],
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<a href=#9 id=9 data-nosnippet>9</a> value: <span class="kw-2">&</span><span class="lifetime">'v </span>[u8],
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<a href=#10 id=10 data-nosnippet>10</a>}
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<a href=#11 id=11 data-nosnippet>11</a>
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<a href=#12 id=12 data-nosnippet>12</a><span class="kw">impl</span><<span class="lifetime">'k</span>, <span class="lifetime">'v</span>> Param<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#13 id=13 data-nosnippet>13</a> <span class="comment">// this could be from_utf8_unchecked, but we'll keep this safe for now
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<a href=#14 id=14 data-nosnippet>14</a> </span><span class="kw">fn </span>key_str(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'k </span>str {
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<a href=#15 id=15 data-nosnippet>15</a> std::str::from_utf8(<span class="self">self</span>.key).unwrap()
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<a href=#16 id=16 data-nosnippet>16</a> }
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<a href=#17 id=17 data-nosnippet>17</a>
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<a href=#18 id=18 data-nosnippet>18</a> <span class="kw">fn </span>value_str(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'v </span>str {
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<a href=#19 id=19 data-nosnippet>19</a> std::str::from_utf8(<span class="self">self</span>.value).unwrap()
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<a href=#20 id=20 data-nosnippet>20</a> }
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<a href=#21 id=21 data-nosnippet>21</a>}
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<a href=#22 id=22 data-nosnippet>22</a>
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<a href=#23 id=23 data-nosnippet>23</a><span class="doccomment">/// A list of parameters returned by a route match.
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<a href=#24 id=24 data-nosnippet>24</a>///
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<a href=#25 id=25 data-nosnippet>25</a>/// ```rust
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<a href=#26 id=26 data-nosnippet>26</a>/// # fn main() -> Result<(), Box<dyn std::error::Error>> {
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<a href=#27 id=27 data-nosnippet>27</a>/// # let mut router = matchit::Router::new();
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<a href=#28 id=28 data-nosnippet>28</a>/// # router.insert("/users/:id", true).unwrap();
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<a href=#29 id=29 data-nosnippet>29</a>/// let matched = router.at("/users/1")?;
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<a href=#30 id=30 data-nosnippet>30</a>///
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<a href=#31 id=31 data-nosnippet>31</a>/// // you can iterate through the keys and values
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<a href=#32 id=32 data-nosnippet>32</a>/// for (key, value) in matched.params.iter() {
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<a href=#33 id=33 data-nosnippet>33</a>/// println!("key: {}, value: {}", key, value);
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<a href=#34 id=34 data-nosnippet>34</a>/// }
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<a href=#35 id=35 data-nosnippet>35</a>///
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<a href=#36 id=36 data-nosnippet>36</a>/// // or get a specific value by key
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<a href=#37 id=37 data-nosnippet>37</a>/// let id = matched.params.get("id");
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<a href=#38 id=38 data-nosnippet>38</a>/// assert_eq!(id, Some("1"));
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<a href=#39 id=39 data-nosnippet>39</a>/// # Ok(())
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<a href=#40 id=40 data-nosnippet>40</a>/// # }
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<a href=#41 id=41 data-nosnippet>41</a>/// ```
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<a href=#42 id=42 data-nosnippet>42</a></span><span class="attr">#[derive(Debug, PartialEq, Eq, Ord, PartialOrd, Clone)]
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<a href=#43 id=43 data-nosnippet>43</a></span><span class="kw">pub struct </span>Params<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#44 id=44 data-nosnippet>44</a> kind: ParamsKind<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>>,
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<a href=#45 id=45 data-nosnippet>45</a>}
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<a href=#46 id=46 data-nosnippet>46</a>
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<a href=#47 id=47 data-nosnippet>47</a><span class="comment">// most routes have 1-3 dynamic parameters, so we can avoid a heap allocation in common cases.
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<a href=#48 id=48 data-nosnippet>48</a></span><span class="kw">const </span>SMALL: usize = <span class="number">3</span>;
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<a href=#49 id=49 data-nosnippet>49</a>
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<a href=#50 id=50 data-nosnippet>50</a><span class="attr">#[derive(Debug, PartialEq, Eq, Ord, PartialOrd, Clone)]
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<a href=#51 id=51 data-nosnippet>51</a></span><span class="kw">enum </span>ParamsKind<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#52 id=52 data-nosnippet>52</a> <span class="prelude-val">None</span>,
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<a href=#53 id=53 data-nosnippet>53</a> Small([Param<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>>; SMALL], usize),
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<a href=#54 id=54 data-nosnippet>54</a> Large(Vec<Param<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>>>),
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<a href=#55 id=55 data-nosnippet>55</a>}
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<a href=#56 id=56 data-nosnippet>56</a>
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<a href=#57 id=57 data-nosnippet>57</a><span class="kw">impl</span><<span class="lifetime">'k</span>, <span class="lifetime">'v</span>> Params<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new() -> <span class="self">Self </span>{
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<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">let </span>kind = ParamsKind::None;
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<a href=#60 id=60 data-nosnippet>60</a> <span class="self">Self </span>{ kind }
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<a href=#61 id=61 data-nosnippet>61</a> }
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<a href=#62 id=62 data-nosnippet>62</a>
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<a href=#63 id=63 data-nosnippet>63</a> <span class="doccomment">/// Returns the number of parameters.
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<a href=#64 id=64 data-nosnippet>64</a> </span><span class="kw">pub fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize {
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<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">match </span><span class="kw-2">&</span><span class="self">self</span>.kind {
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<a href=#66 id=66 data-nosnippet>66</a> ParamsKind::None => <span class="number">0</span>,
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<a href=#67 id=67 data-nosnippet>67</a> ParamsKind::Small(<span class="kw">_</span>, len) => <span class="kw-2">*</span>len,
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<a href=#68 id=68 data-nosnippet>68</a> ParamsKind::Large(vec) => vec.len(),
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<a href=#69 id=69 data-nosnippet>69</a> }
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<a href=#70 id=70 data-nosnippet>70</a> }
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<a href=#71 id=71 data-nosnippet>71</a>
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<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>truncate(<span class="kw-2">&mut </span><span class="self">self</span>, n: usize) {
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<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">match </span><span class="kw-2">&mut </span><span class="self">self</span>.kind {
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<a href=#74 id=74 data-nosnippet>74</a> ParamsKind::None => {}
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<a href=#75 id=75 data-nosnippet>75</a> ParamsKind::Small(<span class="kw">_</span>, len) => {
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<a href=#76 id=76 data-nosnippet>76</a> <span class="kw-2">*</span>len = n;
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<a href=#77 id=77 data-nosnippet>77</a> }
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<a href=#78 id=78 data-nosnippet>78</a> ParamsKind::Large(vec) => {
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<a href=#79 id=79 data-nosnippet>79</a> vec.truncate(n);
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<a href=#80 id=80 data-nosnippet>80</a> }
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<a href=#81 id=81 data-nosnippet>81</a> }
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<a href=#82 id=82 data-nosnippet>82</a> }
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<a href=#83 id=83 data-nosnippet>83</a>
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<a href=#84 id=84 data-nosnippet>84</a> <span class="doccomment">/// Returns the value of the first parameter registered under the given key.
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<a href=#85 id=85 data-nosnippet>85</a> </span><span class="kw">pub fn </span>get(<span class="kw-2">&</span><span class="self">self</span>, key: <span class="kw">impl </span>AsRef<str>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'v </span>str> {
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<a href=#86 id=86 data-nosnippet>86</a> <span class="kw">let </span>key = key.as_ref().as_bytes();
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<a href=#87 id=87 data-nosnippet>87</a>
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<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">match </span><span class="kw-2">&</span><span class="self">self</span>.kind {
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<a href=#89 id=89 data-nosnippet>89</a> ParamsKind::None => <span class="prelude-val">None</span>,
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<a href=#90 id=90 data-nosnippet>90</a> ParamsKind::Small(arr, len) => arr
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<a href=#91 id=91 data-nosnippet>91</a> .iter()
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<a href=#92 id=92 data-nosnippet>92</a> .take(<span class="kw-2">*</span>len)
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<a href=#93 id=93 data-nosnippet>93</a> .find(|param| param.key == key)
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<a href=#94 id=94 data-nosnippet>94</a> .map(Param::value_str),
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<a href=#95 id=95 data-nosnippet>95</a> ParamsKind::Large(vec) => vec
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<a href=#96 id=96 data-nosnippet>96</a> .iter()
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<a href=#97 id=97 data-nosnippet>97</a> .find(|param| param.key == key)
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<a href=#98 id=98 data-nosnippet>98</a> .map(Param::value_str),
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<a href=#99 id=99 data-nosnippet>99</a> }
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<a href=#100 id=100 data-nosnippet>100</a> }
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<a href=#101 id=101 data-nosnippet>101</a>
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<a href=#102 id=102 data-nosnippet>102</a> <span class="doccomment">/// Returns an iterator over the parameters in the list.
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<a href=#103 id=103 data-nosnippet>103</a> </span><span class="kw">pub fn </span>iter(<span class="kw-2">&</span><span class="self">self</span>) -> ParamsIter<<span class="lifetime">'_</span>, <span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#104 id=104 data-nosnippet>104</a> ParamsIter::new(<span class="self">self</span>)
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<a href=#105 id=105 data-nosnippet>105</a> }
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<a href=#106 id=106 data-nosnippet>106</a>
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<a href=#107 id=107 data-nosnippet>107</a> <span class="doccomment">/// Returns `true` if there are no parameters in the list.
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<a href=#108 id=108 data-nosnippet>108</a> </span><span class="kw">pub fn </span>is_empty(<span class="kw-2">&</span><span class="self">self</span>) -> bool {
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<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">match </span><span class="kw-2">&</span><span class="self">self</span>.kind {
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<a href=#110 id=110 data-nosnippet>110</a> ParamsKind::None => <span class="bool-val">true</span>,
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<a href=#111 id=111 data-nosnippet>111</a> ParamsKind::Small(<span class="kw">_</span>, len) => <span class="kw-2">*</span>len == <span class="number">0</span>,
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<a href=#112 id=112 data-nosnippet>112</a> ParamsKind::Large(vec) => vec.is_empty(),
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<a href=#113 id=113 data-nosnippet>113</a> }
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<a href=#114 id=114 data-nosnippet>114</a> }
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<a href=#115 id=115 data-nosnippet>115</a>
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<a href=#116 id=116 data-nosnippet>116</a> <span class="doccomment">/// Inserts a key value parameter pair into the list.
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<a href=#117 id=117 data-nosnippet>117</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>push(<span class="kw-2">&mut </span><span class="self">self</span>, key: <span class="kw-2">&</span><span class="lifetime">'k </span>[u8], value: <span class="kw-2">&</span><span class="lifetime">'v </span>[u8]) {
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<a href=#118 id=118 data-nosnippet>118</a> <span class="attr">#[cold]
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<a href=#119 id=119 data-nosnippet>119</a> </span><span class="kw">fn </span>drain_to_vec<T: Default>(len: usize, elem: T, arr: <span class="kw-2">&mut </span>[T; SMALL]) -> Vec<T> {
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<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">let </span><span class="kw-2">mut </span>vec = Vec::with_capacity(len + <span class="number">1</span>);
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<a href=#121 id=121 data-nosnippet>121</a> vec.extend(arr.iter_mut().map(mem::take));
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<a href=#122 id=122 data-nosnippet>122</a> vec.push(elem);
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<a href=#123 id=123 data-nosnippet>123</a> vec
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<a href=#124 id=124 data-nosnippet>124</a> }
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<a href=#125 id=125 data-nosnippet>125</a>
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<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">let </span>param = Param { key, value };
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<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">match </span><span class="kw-2">&mut </span><span class="self">self</span>.kind {
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<a href=#128 id=128 data-nosnippet>128</a> ParamsKind::None => {
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<a href=#129 id=129 data-nosnippet>129</a> <span class="self">self</span>.kind = ParamsKind::Small([param, Param::default(), Param::default()], <span class="number">1</span>);
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<a href=#130 id=130 data-nosnippet>130</a> }
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<a href=#131 id=131 data-nosnippet>131</a> ParamsKind::Small(arr, len) => {
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<a href=#132 id=132 data-nosnippet>132</a> <span class="kw">if </span><span class="kw-2">*</span>len == SMALL {
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<a href=#133 id=133 data-nosnippet>133</a> <span class="self">self</span>.kind = ParamsKind::Large(drain_to_vec(<span class="kw-2">*</span>len, param, arr));
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<a href=#134 id=134 data-nosnippet>134</a> <span class="kw">return</span>;
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<a href=#135 id=135 data-nosnippet>135</a> }
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<a href=#136 id=136 data-nosnippet>136</a> arr[<span class="kw-2">*</span>len] = param;
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<a href=#137 id=137 data-nosnippet>137</a> <span class="kw-2">*</span>len += <span class="number">1</span>;
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<a href=#138 id=138 data-nosnippet>138</a> }
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<a href=#139 id=139 data-nosnippet>139</a> ParamsKind::Large(vec) => vec.push(param),
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<a href=#140 id=140 data-nosnippet>140</a> }
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<a href=#141 id=141 data-nosnippet>141</a> }
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<a href=#142 id=142 data-nosnippet>142</a>
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<a href=#143 id=143 data-nosnippet>143</a> <span class="comment">// Transform each key.
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<a href=#144 id=144 data-nosnippet>144</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>for_each_key_mut(<span class="kw-2">&mut </span><span class="self">self</span>, f: <span class="kw">impl </span>Fn((usize, <span class="kw-2">&mut &</span><span class="lifetime">'k </span>[u8]))) {
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<a href=#145 id=145 data-nosnippet>145</a> <span class="kw">match </span><span class="kw-2">&mut </span><span class="self">self</span>.kind {
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<a href=#146 id=146 data-nosnippet>146</a> ParamsKind::None => {}
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<a href=#147 id=147 data-nosnippet>147</a> ParamsKind::Small(arr, len) => arr
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<a href=#148 id=148 data-nosnippet>148</a> .iter_mut()
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<a href=#149 id=149 data-nosnippet>149</a> .take(<span class="kw-2">*</span>len)
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<a href=#150 id=150 data-nosnippet>150</a> .map(|param| <span class="kw-2">&mut </span>param.key)
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<a href=#151 id=151 data-nosnippet>151</a> .enumerate()
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<a href=#152 id=152 data-nosnippet>152</a> .for_each(f),
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<a href=#153 id=153 data-nosnippet>153</a> ParamsKind::Large(vec) => vec
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<a href=#154 id=154 data-nosnippet>154</a> .iter_mut()
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<a href=#155 id=155 data-nosnippet>155</a> .map(|param| <span class="kw-2">&mut </span>param.key)
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<a href=#156 id=156 data-nosnippet>156</a> .enumerate()
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<a href=#157 id=157 data-nosnippet>157</a> .for_each(f),
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<a href=#158 id=158 data-nosnippet>158</a> }
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<a href=#159 id=159 data-nosnippet>159</a> }
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<a href=#160 id=160 data-nosnippet>160</a>}
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<a href=#161 id=161 data-nosnippet>161</a>
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<a href=#162 id=162 data-nosnippet>162</a><span class="doccomment">/// An iterator over the keys and values of a route's [parameters](crate::Params).
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<a href=#163 id=163 data-nosnippet>163</a></span><span class="kw">pub struct </span>ParamsIter<<span class="lifetime">'ps</span>, <span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#164 id=164 data-nosnippet>164</a> kind: ParamsIterKind<<span class="lifetime">'ps</span>, <span class="lifetime">'k</span>, <span class="lifetime">'v</span>>,
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<a href=#165 id=165 data-nosnippet>165</a>}
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<a href=#166 id=166 data-nosnippet>166</a>
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<a href=#167 id=167 data-nosnippet>167</a><span class="kw">impl</span><<span class="lifetime">'ps</span>, <span class="lifetime">'k</span>, <span class="lifetime">'v</span>> ParamsIter<<span class="lifetime">'ps</span>, <span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#168 id=168 data-nosnippet>168</a> <span class="kw">fn </span>new(params: <span class="kw-2">&</span><span class="lifetime">'ps </span>Params<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>>) -> <span class="self">Self </span>{
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<a href=#169 id=169 data-nosnippet>169</a> <span class="kw">let </span>kind = <span class="kw">match </span><span class="kw-2">&</span>params.kind {
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<a href=#170 id=170 data-nosnippet>170</a> ParamsKind::None => ParamsIterKind::None,
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<a href=#171 id=171 data-nosnippet>171</a> ParamsKind::Small(arr, len) => ParamsIterKind::Small(arr.iter().take(<span class="kw-2">*</span>len)),
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<a href=#172 id=172 data-nosnippet>172</a> ParamsKind::Large(vec) => ParamsIterKind::Large(vec.iter()),
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<a href=#173 id=173 data-nosnippet>173</a> };
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<a href=#174 id=174 data-nosnippet>174</a> <span class="self">Self </span>{ kind }
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<a href=#175 id=175 data-nosnippet>175</a> }
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<a href=#176 id=176 data-nosnippet>176</a>}
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<a href=#177 id=177 data-nosnippet>177</a>
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<a href=#178 id=178 data-nosnippet>178</a><span class="kw">enum </span>ParamsIterKind<<span class="lifetime">'ps</span>, <span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#179 id=179 data-nosnippet>179</a> <span class="prelude-val">None</span>,
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<a href=#180 id=180 data-nosnippet>180</a> Small(iter::Take<slice::Iter<<span class="lifetime">'ps</span>, Param<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>>>>),
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<a href=#181 id=181 data-nosnippet>181</a> Large(slice::Iter<<span class="lifetime">'ps</span>, Param<<span class="lifetime">'k</span>, <span class="lifetime">'v</span>>>),
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<a href=#182 id=182 data-nosnippet>182</a>}
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<a href=#183 id=183 data-nosnippet>183</a>
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<a href=#184 id=184 data-nosnippet>184</a><span class="kw">impl</span><<span class="lifetime">'ps</span>, <span class="lifetime">'k</span>, <span class="lifetime">'v</span>> Iterator <span class="kw">for </span>ParamsIter<<span class="lifetime">'ps</span>, <span class="lifetime">'k</span>, <span class="lifetime">'v</span>> {
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<a href=#185 id=185 data-nosnippet>185</a> <span class="kw">type </span>Item = (<span class="kw-2">&</span><span class="lifetime">'k </span>str, <span class="kw-2">&</span><span class="lifetime">'v </span>str);
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<a href=#186 id=186 data-nosnippet>186</a>
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<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="self">Self</span>::Item> {
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<a href=#188 id=188 data-nosnippet>188</a> <span class="kw">match </span><span class="self">self</span>.kind {
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<a href=#189 id=189 data-nosnippet>189</a> ParamsIterKind::None => <span class="prelude-val">None</span>,
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<a href=#190 id=190 data-nosnippet>190</a> ParamsIterKind::Small(<span class="kw-2">ref mut </span>iter) => {
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<a href=#191 id=191 data-nosnippet>191</a> iter.next().map(|p| (p.key_str(), p.value_str()))
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<a href=#192 id=192 data-nosnippet>192</a> }
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<a href=#193 id=193 data-nosnippet>193</a> ParamsIterKind::Large(<span class="kw-2">ref mut </span>iter) => {
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<a href=#194 id=194 data-nosnippet>194</a> iter.next().map(|p| (p.key_str(), p.value_str()))
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<a href=#195 id=195 data-nosnippet>195</a> }
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<a href=#196 id=196 data-nosnippet>196</a> }
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<a href=#197 id=197 data-nosnippet>197</a> }
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<a href=#198 id=198 data-nosnippet>198</a>}
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<a href=#199 id=199 data-nosnippet>199</a>
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<a href=#200 id=200 data-nosnippet>200</a><span class="attr">#[cfg(test)]
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<a href=#201 id=201 data-nosnippet>201</a></span><span class="kw">mod </span>tests {
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<a href=#202 id=202 data-nosnippet>202</a> <span class="kw">use super</span>::<span class="kw-2">*</span>;
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<a href=#203 id=203 data-nosnippet>203</a>
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<a href=#204 id=204 data-nosnippet>204</a> <span class="attr">#[test]
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<a href=#205 id=205 data-nosnippet>205</a> </span><span class="kw">fn </span>no_alloc() {
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<a href=#206 id=206 data-nosnippet>206</a> <span class="macro">assert_eq!</span>(Params::new().kind, ParamsKind::None);
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<a href=#207 id=207 data-nosnippet>207</a> }
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<a href=#208 id=208 data-nosnippet>208</a>
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<a href=#209 id=209 data-nosnippet>209</a> <span class="attr">#[test]
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<a href=#210 id=210 data-nosnippet>210</a> </span><span class="kw">fn </span>heap_alloc() {
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<a href=#211 id=211 data-nosnippet>211</a> <span class="kw">let </span>vec = <span class="macro">vec!</span>[
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<a href=#212 id=212 data-nosnippet>212</a> (<span class="string">"hello"</span>, <span class="string">"hello"</span>),
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<a href=#213 id=213 data-nosnippet>213</a> (<span class="string">"world"</span>, <span class="string">"world"</span>),
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<a href=#214 id=214 data-nosnippet>214</a> (<span class="string">"foo"</span>, <span class="string">"foo"</span>),
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<a href=#215 id=215 data-nosnippet>215</a> (<span class="string">"bar"</span>, <span class="string">"bar"</span>),
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<a href=#216 id=216 data-nosnippet>216</a> (<span class="string">"baz"</span>, <span class="string">"baz"</span>),
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<a href=#217 id=217 data-nosnippet>217</a> ];
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<a href=#218 id=218 data-nosnippet>218</a>
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<a href=#219 id=219 data-nosnippet>219</a> <span class="kw">let </span><span class="kw-2">mut </span>params = Params::new();
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<a href=#220 id=220 data-nosnippet>220</a> <span class="kw">for </span>(key, value) <span class="kw">in </span>vec.clone() {
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<a href=#221 id=221 data-nosnippet>221</a> params.push(key.as_bytes(), value.as_bytes());
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<a href=#222 id=222 data-nosnippet>222</a> <span class="macro">assert_eq!</span>(params.get(key), <span class="prelude-val">Some</span>(value));
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<a href=#223 id=223 data-nosnippet>223</a> }
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<a href=#224 id=224 data-nosnippet>224</a>
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<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">match </span>params.kind {
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<a href=#226 id=226 data-nosnippet>226</a> ParamsKind::Large(..) => {}
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<a href=#227 id=227 data-nosnippet>227</a> <span class="kw">_ </span>=> <span class="macro">panic!</span>(),
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<a href=#228 id=228 data-nosnippet>228</a> }
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<a href=#229 id=229 data-nosnippet>229</a>
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<a href=#230 id=230 data-nosnippet>230</a> <span class="macro">assert!</span>(params.iter().eq(vec.clone()));
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<a href=#231 id=231 data-nosnippet>231</a> }
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<a href=#232 id=232 data-nosnippet>232</a>
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<a href=#233 id=233 data-nosnippet>233</a> <span class="attr">#[test]
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<a href=#234 id=234 data-nosnippet>234</a> </span><span class="kw">fn </span>stack_alloc() {
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<a href=#235 id=235 data-nosnippet>235</a> <span class="kw">let </span>vec = <span class="macro">vec!</span>[(<span class="string">"hello"</span>, <span class="string">"hello"</span>), (<span class="string">"world"</span>, <span class="string">"world"</span>), (<span class="string">"baz"</span>, <span class="string">"baz"</span>)];
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<a href=#236 id=236 data-nosnippet>236</a>
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<a href=#237 id=237 data-nosnippet>237</a> <span class="kw">let </span><span class="kw-2">mut </span>params = Params::new();
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<a href=#238 id=238 data-nosnippet>238</a> <span class="kw">for </span>(key, value) <span class="kw">in </span>vec.clone() {
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<a href=#239 id=239 data-nosnippet>239</a> params.push(key.as_bytes(), value.as_bytes());
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<a href=#240 id=240 data-nosnippet>240</a> <span class="macro">assert_eq!</span>(params.get(key), <span class="prelude-val">Some</span>(value));
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<a href=#241 id=241 data-nosnippet>241</a> }
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<a href=#242 id=242 data-nosnippet>242</a>
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<a href=#243 id=243 data-nosnippet>243</a> <span class="kw">match </span>params.kind {
|
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<a href=#244 id=244 data-nosnippet>244</a> ParamsKind::Small(..) => {}
|
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<a href=#245 id=245 data-nosnippet>245</a> <span class="kw">_ </span>=> <span class="macro">panic!</span>(),
|
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<a href=#246 id=246 data-nosnippet>246</a> }
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<a href=#247 id=247 data-nosnippet>247</a>
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<a href=#248 id=248 data-nosnippet>248</a> <span class="macro">assert!</span>(params.iter().eq(vec.clone()));
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<a href=#249 id=249 data-nosnippet>249</a> }
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<a href=#250 id=250 data-nosnippet>250</a>
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<a href=#251 id=251 data-nosnippet>251</a> <span class="attr">#[test]
|
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<a href=#252 id=252 data-nosnippet>252</a> </span><span class="kw">fn </span>ignore_array_default() {
|
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<a href=#253 id=253 data-nosnippet>253</a> <span class="kw">let </span>params = Params::new();
|
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<a href=#254 id=254 data-nosnippet>254</a> <span class="macro">assert!</span>(params.get(<span class="string">""</span>).is_none());
|
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<a href=#255 id=255 data-nosnippet>255</a> }
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<a href=#256 id=256 data-nosnippet>256</a>}
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</code></pre></div></section></main></body></html> |