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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="API documentation for the Rust `EncoderWriter` struct in crate `base64`."><meta name="keywords" content="rust, rustlang, rust-lang, EncoderWriter"><title>base64::write::EncoderWriter - Rust</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">
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<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 struct"><!--[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">&#9776;</div><a href='../../base64/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct EncoderWriter</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.finish">finish</a><a href="#method.new">new</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-Drop">Drop</a><a href="#impl-Write">Write</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">RefUnwindSafe</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow&lt;T&gt;</a><a href="#impl-BorrowMut%3CT%3E">BorrowMut&lt;T&gt;</a><a href="#impl-From%3CT%3E">From&lt;T&gt;</a><a href="#impl-Into%3CU%3E">Into&lt;U&gt;</a><a href="#impl-TryFrom%3CU%3E">TryFrom&lt;U&gt;</a><a href="#impl-TryInto%3CU%3E">TryInto&lt;U&gt;</a></div></div><p class="location"><a href="../index.html">base64</a>::<wbr><a href="index.html">write</a></p><div id="sidebar-vars" data-name="EncoderWriter" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></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"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">base64</a>::<wbr><a href="index.html">write</a>::<wbr><a class="struct" href="">EncoderWriter</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span><a class="srclink" href="../../src/base64/write/encoder.rs.html#56-74" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct EncoderWriter&lt;W:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a>&gt; { /* fields omitted */ }</pre></div><div class="docblock"><p>A <code>Write</code> implementation that base64 encodes data before delegating to the wrapped writer.</p>
<p>Because base64 has special handling for the end of the input data (padding, etc), there's a
<code>finish()</code> method on this type that encodes any leftover input bytes and adds padding if
appropriate. It's called automatically when deallocated (see the <code>Drop</code> implementation), but
any error that occurs when invoking the underlying writer will be suppressed. If you want to
handle such errors, call <code>finish()</code> yourself.</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::<span class="ident">Write</span>;
<span class="comment">// use a vec as the simplest possible `Write` -- in real code this is probably a file, etc.</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">enc</span> <span class="op">=</span> <span class="ident">base64</span>::<span class="ident">write</span>::<span class="ident">EncoderWriter</span>::<span class="ident">new</span>(<span class="ident">Vec</span>::<span class="ident">new</span>(), <span class="ident">base64</span>::<span class="ident">STANDARD</span>);
<span class="comment">// handle errors as you normally would</span>
<span class="ident">enc</span>.<span class="ident">write_all</span>(<span class="string">b&quot;asdf&quot;</span>).<span class="ident">unwrap</span>();
<span class="comment">// could leave this out to be called by Drop, if you don&#39;t care</span>
<span class="comment">// about handling errors or getting the delegate writer back</span>
<span class="kw">let</span> <span class="ident">delegate</span> <span class="op">=</span> <span class="ident">enc</span>.<span class="ident">finish</span>().<span class="ident">unwrap</span>();
<span class="comment">// base64 was written to the writer</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">b&quot;YXNkZg==&quot;</span>, <span class="kw-2">&amp;</span><span class="ident">delegate</span>[..]);
</pre></div>
<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
<p>Calling <code>write()</code> (or related methods) or <code>finish()</code> after <code>finish()</code> has completed without
error is invalid and will panic.</p>
<h1 id="errors" class="section-header"><a href="#errors">Errors</a></h1>
<p>Base64 encoding itself does not generate errors, but errors from the wrapped writer will be
returned as per the contract of <code>Write</code>.</p>
<h1 id="performance" class="section-header"><a href="#performance">Performance</a></h1>
<p>It has some minor performance loss compared to encoding slices (a couple percent).
It does not do any heap allocation.</p>
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl&lt;W:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a>&gt; <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/base64/write/encoder.rs.html#89-218" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.new" class="method"><code>pub fn <a href="#method.new" class="fnname">new</a>(w: W, config: <a class="struct" href="../../base64/struct.Config.html" title="struct base64::Config">Config</a>) -&gt; <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;W:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</span></code></span></div></span></span></code><a class="srclink" href="../../src/base64/write/encoder.rs.html#91-101" title="goto source code">[src]</a></h4><div class="docblock"><p>Create a new encoder that will write to the provided delegate writer <code>w</code>.</p>
</div><h4 id="method.finish" class="method"><code>pub fn <a href="#method.finish" class="fnname">finish</a>(&amp;mut self) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;W&gt;</code><a class="srclink" href="../../src/base64/write/encoder.rs.html#119-131" title="goto source code">[src]</a></h4><div class="docblock"><p>Encode all remaining buffered data and write it, including any trailing incomplete input
triples and associated padding.</p>
<p>Once this succeeds, no further writes or calls to this method are allowed.</p>
<p>This may write to the delegate writer multiple times if the delegate writer does not accept
all input provided to its <code>write</code> each invocation.</p>
<p>If you don't care about error handling, it is not necessary to call this function, as the
equivalent finalization is done by the Drop impl.</p>
<p>Returns the writer that this was constructed around.</p>
<h1 id="errors-1" class="section-header"><a href="#errors-1">Errors</a></h1>
<p>The first error that is not of <code>ErrorKind::Interrupted</code> will be returned.</p>
</div></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-Debug" class="impl"><code class="in-band">impl&lt;W:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../../src/base64/write/encoder.rs.html#76-87" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class="srclink" href="../../src/base64/write/encoder.rs.html#77-86" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3 id="impl-Drop" class="impl"><code class="in-band">impl&lt;W:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html" title="trait core::ops::drop::Drop">Drop</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</code><a href="#impl-Drop" class="anchor"></a><a class="srclink" href="../../src/base64/write/encoder.rs.html#374-381" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.drop" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop" class="fnname">drop</a>(&amp;mut self)</code><a class="srclink" href="../../src/base64/write/encoder.rs.html#375-380" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Executes the destructor for this type. <a href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop">Read more</a></p>
</div></div><h3 id="impl-Write" class="impl"><code class="in-band">impl&lt;W:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</code><a href="#impl-Write" class="anchor"></a><a class="srclink" href="../../src/base64/write/encoder.rs.html#220-372" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.write" class="method"><code>fn <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#tymethod.write" class="fnname">write</a>(&amp;mut self, input: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt;</code><a class="srclink" href="../../src/base64/write/encoder.rs.html#237-358" title="goto source code">[src]</a></h4><div class="docblock"><p>Encode input and then write to the delegate writer.</p>
<p>Under non-error circumstances, this returns <code>Ok</code> with the value being the number of bytes
of <code>input</code> consumed. The value may be <code>0</code>, which interacts poorly with <code>write_all</code>, which
interprets <code>Ok(0)</code> as an error, despite it being allowed by the contract of <code>write</code>. See
https://github.com/rust-lang/rust/issues/56889 for more on that.</p>
<p>If the previous call to <code>write</code> provided more (encoded) data than the delegate writer could
accept in a single call to its <code>write</code>, the remaining data is buffered. As long as buffered
data is present, subsequent calls to <code>write</code> will try to write the remaining buffered data
to the delegate and return either <code>Ok(0)</code> -- and therefore not consume any of <code>input</code> -- or
an error.</p>
<h1 id="errors-2" class="section-header"><a href="#errors-2">Errors</a></h1>
<p>Any errors emitted by the delegate writer are returned.</p>
</div><h4 id="method.flush" class="method"><code>fn <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#tymethod.flush" class="fnname">flush</a>(&amp;mut self) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>&gt;</code><a class="srclink" href="../../src/base64/write/encoder.rs.html#365-371" title="goto source code">[src]</a></h4><div class="docblock"><p>Because this is usually treated as OK to call multiple times, it will <em>not</em> flush any
incomplete chunks of input or write padding.</p>
<h1 id="errors-3" class="section-header"><a href="#errors-3">Errors</a></h1>
<p>The first error that is not of <a href="https://doc.rust-lang.org/nightly/std/io/error/enum.ErrorKind.html#variant.Interrupted" title="ErrorKind::Interrupted"><code>ErrorKind::Interrupted</code></a> will be returned.</p>
</div><h4 id="method.write_vectored" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_vectored" class="fnname">write_vectored</a>(&amp;mut self, bufs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[</a><a class="struct" href="https://doc.rust-lang.org/nightly/std/io/struct.IoSlice.html" title="struct std::io::IoSlice">IoSlice</a>&lt;'_&gt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>&gt;</code><span class="since" title="Stable since Rust version 1.36.0">1.36.0</span><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1355" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Like <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#tymethod.write"><code>write</code></a>, except that it writes from a slice of buffers. <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_vectored">Read more</a></p>
</div><h4 id="method.is_write_vectored" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.is_write_vectored" class="fnname">is_write_vectored</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1370" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>can_vector</code>)</div></div><div class='docblock hidden'><p>Determines if this <code>Write</code>r has an efficient <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_vectored"><code>write_vectored</code></a>
implementation. <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.is_write_vectored">Read more</a></p>
</div><h4 id="method.write_all" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_all" class="fnname">write_all</a>(&amp;mut self, buf: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>&gt;</code><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1432" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Attempts to write an entire buffer into this writer. <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_all">Read more</a></p>
</div><h4 id="method.write_all_vectored" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_all_vectored" class="fnname">write_all_vectored</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;mut self, <br>&nbsp;&nbsp;&nbsp;&nbsp;bufs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;mut [</a><a class="struct" href="https://doc.rust-lang.org/nightly/std/io/struct.IoSlice.html" title="struct std::io::IoSlice">IoSlice</a>&lt;'_&gt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a><br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>&gt;</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1494" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>write_all_vectored</code>)</div></div><div class='docblock hidden'><p>Attempts to write multiple buffers into this writer. <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_all_vectored">Read more</a></p>
</div><h4 id="method.write_fmt" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_fmt" class="fnname">write_fmt</a>(&amp;mut self, fmt: <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Arguments.html" title="struct core::fmt::Arguments">Arguments</a>&lt;'_&gt;) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>&gt;</code><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1547" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Writes a formatted string into this writer, returning any error
encountered. <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_fmt">Read more</a></p>
</div><h4 id="method.by_ref" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.by_ref" class="fnname">by_ref</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>Self</code><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1603-1605" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Creates a &quot;by reference&quot; adaptor for this instance of <code>Write</code>. <a href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.by_ref">Read more</a></p>
</div></div></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl&lt;W&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a>,&nbsp;</span></code><a href="#impl-RefUnwindSafe" class="anchor"></a><a class="srclink" href="../../src/base64/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Send" class="impl"><code class="in-band">impl&lt;W&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,&nbsp;</span></code><a href="#impl-Send" class="anchor"></a><a class="srclink" href="../../src/base64/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">impl&lt;W&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,&nbsp;</span></code><a href="#impl-Sync" class="anchor"></a><a class="srclink" href="../../src/base64/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">impl&lt;W&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,&nbsp;</span></code><a href="#impl-Unpin" class="anchor"></a><a class="srclink" href="../../src/base64/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl&lt;W&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../base64/write/struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a>,&nbsp;</span></code><a href="#impl-UnwindSafe" class="anchor"></a><a class="srclink" href="../../src/base64/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><h3 id="impl-Any" class="impl"><code class="in-band">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
</div></div><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#207-211" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
</div></div><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214-218" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#215" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
</div></div><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545-549" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -&gt; T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#546" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,&nbsp;</span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#534-541" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -&gt; U</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#538" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,&nbsp;</span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#582-591" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4 id="method.try_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#588" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,&nbsp;</span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#568-577" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4 id="method.try_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#574" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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