Uttarayan Mondal
301 lines
18 KiB
HTML
301 lines
18 KiB
HTML
<!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 `/home/fs0c131y/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/bytes-1.0.1/src/buf/take.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>take.rs - source</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled ><script id="default-settings"></script><script src="../../../storage.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../../favicon.svg">
|
||
<link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png">
|
||
<link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc source"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../../bytes/index.html'><div class='logo-container rust-logo'><img src='../../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
|
||
<a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><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>
|
||
</pre><div class="example-wrap"><pre class="rust ">
|
||
<span class="kw">use</span> <span class="kw">crate</span>::<span class="ident">Buf</span>;
|
||
|
||
<span class="kw">use</span> <span class="ident">core</span>::<span class="ident">cmp</span>;
|
||
|
||
<span class="doccomment">/// A `Buf` adapter which limits the bytes read from an underlying buffer.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This struct is generally created by calling `take()` on `Buf`. See</span>
|
||
<span class="doccomment">/// documentation of [`take()`](trait.BufExt.html#method.take) for more details.</span>
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Take</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="ident">inner</span>: <span class="ident">T</span>,
|
||
<span class="ident">limit</span>: <span class="ident">usize</span>,
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="ident">inner</span>: <span class="ident">T</span>, <span class="ident">limit</span>: <span class="ident">usize</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Take</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="ident">Take</span> { <span class="ident">inner</span>, <span class="ident">limit</span> }
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="ident">Take</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="doccomment">/// Consumes this `Take`, returning the underlying value.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Examples</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// ```rust</span>
|
||
<span class="doccomment">/// use bytes::{Buf, BufMut};</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// let mut buf = b"hello world".take(2);</span>
|
||
<span class="doccomment">/// let mut dst = vec![];</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// dst.put(&mut buf);</span>
|
||
<span class="doccomment">/// assert_eq!(*dst, b"he"[..]);</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// let mut buf = buf.into_inner();</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// dst.clear();</span>
|
||
<span class="doccomment">/// dst.put(&mut buf);</span>
|
||
<span class="doccomment">/// assert_eq!(*dst, b"llo world"[..]);</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">into_inner</span>(<span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">T</span> {
|
||
<span class="self">self</span>.<span class="ident">inner</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Gets a reference to the underlying `Buf`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// It is inadvisable to directly read from the underlying `Buf`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Examples</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// ```rust</span>
|
||
<span class="doccomment">/// use bytes::Buf;</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// let buf = b"hello world".take(2);</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// assert_eq!(11, buf.get_ref().remaining());</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="kw-2">&</span><span class="ident">T</span> {
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">inner</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Gets a mutable reference to the underlying `Buf`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// It is inadvisable to directly read from the underlying `Buf`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Examples</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// ```rust</span>
|
||
<span class="doccomment">/// use bytes::{Buf, BufMut};</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// let mut buf = b"hello world".take(2);</span>
|
||
<span class="doccomment">/// let mut dst = vec![];</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// buf.get_mut().advance(2);</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// dst.put(&mut buf);</span>
|
||
<span class="doccomment">/// assert_eq!(*dst, b"ll"[..]);</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">T</span> {
|
||
<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">inner</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Returns the maximum number of bytes that can be read.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Note</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// If the inner `Buf` has fewer bytes than indicated by this method then</span>
|
||
<span class="doccomment">/// that is the actual number of available bytes.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Examples</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// ```rust</span>
|
||
<span class="doccomment">/// use bytes::Buf;</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// let mut buf = b"hello world".take(2);</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// assert_eq!(2, buf.limit());</span>
|
||
<span class="doccomment">/// assert_eq!(b'h', buf.get_u8());</span>
|
||
<span class="doccomment">/// assert_eq!(1, buf.limit());</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">limit</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">usize</span> {
|
||
<span class="self">self</span>.<span class="ident">limit</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Sets the maximum number of bytes that can be read.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Note</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// If the inner `Buf` has fewer bytes than `lim` then that is the actual</span>
|
||
<span class="doccomment">/// number of available bytes.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Examples</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// ```rust</span>
|
||
<span class="doccomment">/// use bytes::{Buf, BufMut};</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// let mut buf = b"hello world".take(2);</span>
|
||
<span class="doccomment">/// let mut dst = vec![];</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// dst.put(&mut buf);</span>
|
||
<span class="doccomment">/// assert_eq!(*dst, b"he"[..]);</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// dst.clear();</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// buf.set_limit(3);</span>
|
||
<span class="doccomment">/// dst.put(&mut buf);</span>
|
||
<span class="doccomment">/// assert_eq!(*dst, b"llo"[..]);</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_limit</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">lim</span>: <span class="ident">usize</span>) {
|
||
<span class="self">self</span>.<span class="ident">limit</span> <span class="op">=</span> <span class="ident">lim</span>
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Buf</span><span class="op">></span> <span class="ident">Buf</span> <span class="kw">for</span> <span class="ident">Take</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="kw">fn</span> <span class="ident">remaining</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">usize</span> {
|
||
<span class="ident">cmp</span>::<span class="ident">min</span>(<span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">remaining</span>(), <span class="self">self</span>.<span class="ident">limit</span>)
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">chunk</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="kw-2">&</span>[<span class="ident">u8</span>] {
|
||
<span class="kw">let</span> <span class="ident">bytes</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">chunk</span>();
|
||
<span class="kw-2">&</span><span class="ident">bytes</span>[..<span class="ident">cmp</span>::<span class="ident">min</span>(<span class="ident">bytes</span>.<span class="ident">len</span>(), <span class="self">self</span>.<span class="ident">limit</span>)]
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">advance</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">cnt</span>: <span class="ident">usize</span>) {
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">cnt</span> <span class="op"><</span><span class="op">=</span> <span class="self">self</span>.<span class="ident">limit</span>);
|
||
<span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">advance</span>(<span class="ident">cnt</span>);
|
||
<span class="self">self</span>.<span class="ident">limit</span> <span class="op">-</span><span class="op">=</span> <span class="ident">cnt</span>;
|
||
}
|
||
}
|
||
</pre></div>
|
||
</section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="bytes"></div>
|
||
<script src="../../../main.js"></script><script src="../../../source-script.js"></script><script src="../../../source-files.js"></script><script defer src="../../../search-index.js"></script></body></html> |